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Merge e0fbd25bb3 ("Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input") into android-mainline

Browse Source 
Steps on the way to 5.12-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I918585b39baad0dd40a126fff45077f6eae394ee
This commit is contained in:
Greg Kroah-Hartman
2021-03-06 19:56:16 +01:00
parent 2fec063693 e0fbd25bb3
commit 92527faa4e
104 changed files with 4845 additions and 1694 deletions
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6
Documentation/ABI/testing/sysfs-driver-input-cros-ec-keyb Normal file
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@@ -0,0 +1,6 @@
What: /sys/class/input/input(x)/device/function_row_physmap
Date: January 2021
Contact: Philip Chen <philipchen@chromium.org>
Description: A space separated list of scancodes for the top row keys,
ordered by the physical positions of the keys, from left
to right.

65
Documentation/devicetree/bindings/input/goodix,gt7375p.yaml Normal file
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@@ -0,0 +1,65 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/goodix,gt7375p.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Goodix GT7375P touchscreen
maintainers:
- Douglas Anderson <dianders@chromium.org>
description:
Supports the Goodix GT7375P touchscreen.
This touchscreen uses the i2c-hid protocol but has some non-standard
power sequencing required.
properties:
compatible:
items:
- const: goodix,gt7375p
reg:
enum:
- 0x5d
- 0x14
interrupts:
maxItems: 1
reset-gpios:
true
vdd-supply:
description: The 3.3V supply to the touchscreen.
required:
- compatible
- reg
- interrupts
- reset-gpios
- vdd-supply
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
ap_ts: touchscreen@5d {
compatible = "goodix,gt7375p";
reg = <0x5d>;
interrupt-parent = <&tlmm>;
interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
vdd-supply = <&pp3300_ts>;
};
};

24
Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml
View File

@@ -31,6 +31,17 @@ properties:
if the EC does not have its own logic or hardware for this.
type: boolean
function-row-physmap:
minItems: 1
maxItems: 15
description: |
An ordered u32 array describing the rows/columns (in the scan matrix)
of top row keys from physical left (KEY_F1) to right. Each entry
encodes the row/column as:
(((row) & 0xFF) << 24) | (((column) & 0xFF) << 16)
where the lower 16 bits are reserved. This property is specified only
when the keyboard has a custom design for the top row keys.
required:
- compatible
@@ -38,11 +49,24 @@ unevaluatedProperties: false
examples:
- |
#include <dt-bindings/input/input.h>
cros-ec-keyb {
compatible = "google,cros-ec-keyb";
keypad,num-rows = <8>;
keypad,num-columns = <13>;
google,needs-ghost-filter;
function-row-physmap = <
MATRIX_KEY(0x00, 0x02, 0) /* T1 */
MATRIX_KEY(0x03, 0x02, 0) /* T2 */
MATRIX_KEY(0x02, 0x02, 0) /* T3 */
MATRIX_KEY(0x01, 0x02, 0) /* T4 */
MATRIX_KEY(0x03, 0x04, 0) /* T5 */
MATRIX_KEY(0x02, 0x04, 0) /* T6 */
MATRIX_KEY(0x01, 0x04, 0) /* T7 */
MATRIX_KEY(0x02, 0x09, 0) /* T8 */
MATRIX_KEY(0x01, 0x09, 0) /* T9 */
MATRIX_KEY(0x00, 0x04, 0) /* T10 */
>;
/*
* Keymap entries take the form of 0xRRCCKKKK where
* RR=Row CC=Column KKKK=Key Code

22
Documentation/hid/amd-sfh-hid.rst
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@@ -3,13 +3,13 @@
AMD Sensor Fusion Hub
=====================
AMD Sensor Fusion Hub (SFH) is part of an SOC starting from Ryzen based platforms.
AMD Sensor Fusion Hub (SFH) is part of an SOC starting from Ryzen-based platforms.
The solution is working well on several OEM products. AMD SFH uses HID over PCIe bus.
In terms of architecture it resembles ISH, however the major difference is all
the HID reports are generated as part of the kernel driver.
1. Block Diagram
================
Block Diagram
-------------
::
@@ -45,20 +45,20 @@ the HID reports are generated as part of the kernel driver.
AMD HID Transport Layer
-----------------------
AMD SFH transport is also implemented as a bus. Each client application executing in the AMD MP2 is
registered as a device on this bus. Here: MP2 which is an ARM core connected to x86 for processing
registered as a device on this bus. Here, MP2 is an ARM core connected to x86 for processing
sensor data. The layer, which binds each device (AMD SFH HID driver) identifies the device type and
registers with the hid core. Transport layer attach a constant "struct hid_ll_driver" object with
registers with the HID core. Transport layer attaches a constant "struct hid_ll_driver" object with
each device. Once a device is registered with HID core, the callbacks provided via this struct are
used by HID core to communicate with the device. AMD HID Transport layer implements the synchronous calls.
AMD HID Client Layer
--------------------
This layer is responsible to implement HID request and descriptors. As firmware is OS agnostic, HID
This layer is responsible to implement HID requests and descriptors. As firmware is OS agnostic, HID
client layer fills the HID request structure and descriptors. HID client layer is complex as it is
interface between MP2 PCIe layer and HID. HID client layer initialized the MP2 PCIe layer and holds
the instance of MP2 layer. It identifies the number of sensors connected using MP2-PCIe layer. Base
on that allocates the DRAM address for each and every sensor and pass it to MP2-PCIe driver.On
enumeration of each the sensor, client layer fills the HID Descriptor structure and HID input repor
interface between MP2 PCIe layer and HID. HID client layer initializes the MP2 PCIe layer and holds
the instance of MP2 layer. It identifies the number of sensors connected using MP2-PCIe layer. Based
on that allocates the DRAM address for each and every sensor and passes it to MP2-PCIe driver. On
enumeration of each sensor, client layer fills the HID Descriptor structure and HID input report
structure. HID Feature report structure is optional. The report descriptor structure varies from
sensor to sensor.
@@ -72,7 +72,7 @@ The communication between X86 and MP2 is split into three parts.
2. Data transfer via DRAM.
3. Supported sensor info via P2C registers.
Commands are sent to MP2 using C2P Mailbox registers. Writing into C2P Message registers generate
Commands are sent to MP2 using C2P Mailbox registers. Writing into C2P Message registers generates
interrupt to MP2. The client layer allocates the physical memory and the same is sent to MP2 via
the PCI layer. MP2 firmware writes the command output to the access DRAM memory which the client
layer has allocated. Firmware always writes minimum of 32 bytes into DRAM. So as a protocol driver

4
Documentation/hid/hid-alps.rst
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@@ -64,7 +64,7 @@ Case2 ReportID_3 TP Absolute
Command Read/Write
------------------
To read/write to RAM, need to send a commands to the device.
To read/write to RAM, need to send a command to the device.
The command format is as below.
@@ -80,7 +80,7 @@ Byte6 Value Byte
Byte7 Checksum
===== ======================
Command Byte is read=0xD1/write=0xD2 .
Command Byte is read=0xD1/write=0xD2.
Address is read/write RAM address.

18
Documentation/hid/hid-sensor.rst
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@@ -48,12 +48,12 @@ for different sensors. For example an accelerometer can send X,Y and Z data, whe
an ambient light sensor can send illumination data.
So the implementation has two parts:
- Core hid driver
- Core HID driver
- Individual sensor processing part (sensor drivers)
Core driver
-----------
The core driver registers (hid-sensor-hub) registers as a HID driver. It parses
The core driver (hid-sensor-hub) registers as a HID driver. It parses
report descriptors and identifies all the sensors present. It adds an MFD device
with name HID-SENSOR-xxxx (where xxxx is usage id from the specification).
@@ -95,14 +95,14 @@ Registration functions::
u32 usage_id,
struct hid_sensor_hub_callbacks *usage_callback):
Registers callbacks for an usage id. The callback functions are not allowed
Registers callbacks for a usage id. The callback functions are not allowed
to sleep::
int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
u32 usage_id):
Removes callbacks for an usage id.
Removes callbacks for a usage id.
Parsing function::
@@ -166,7 +166,7 @@ This allows some differentiating use cases, where vendor can provide application
Some common use cases are debug other sensors or to provide some events like
keyboard attached/detached or lid open/close.
To allow application to utilize these sensors, here they are exported uses sysfs
To allow application to utilize these sensors, here they are exported using sysfs
attribute groups, attributes and misc device interface.
An example of this representation on sysfs::
@@ -207,9 +207,9 @@ An example of this representation on sysfs::
│   │   │   ├── input-1-200202-units
│   │   │   ├── input-1-200202-value
Here there is a custom sensors with four fields, two feature and two inputs.
Here there is a custom sensor with four fields: two feature and two inputs.
Each field is represented by a set of attributes. All fields except the "value"
are read only. The value field is a RW field.
are read only. The value field is a read-write field.
Example::
@@ -237,6 +237,6 @@ These reports are pushed using misc device interface in a FIFO order::
│   │   │   ├── 10:53 -> ../HID-SENSOR-2000e1.6.auto
│   ├── HID-SENSOR-2000e1.6.auto
Each reports can be of variable length preceded by a header. This header
consist of a 32 bit usage id, 64 bit time stamp and 32 bit length field of raw
Each report can be of variable length preceded by a header. This header
consists of a 32-bit usage id, 64-bit time stamp and 32-bit length field of raw
data.

12
Documentation/hid/hid-transport.rst
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@@ -12,8 +12,8 @@ Bluetooth, I2C and user-space I/O drivers.
The HID subsystem is designed as a bus. Any I/O subsystem may provide HID
devices and register them with the HID bus. HID core then loads generic device
drivers on top of it. The transport drivers are responsible of raw data
transport and device setup/management. HID core is responsible of
drivers on top of it. The transport drivers are responsible for raw data
transport and device setup/management. HID core is responsible for
report-parsing, report interpretation and the user-space API. Device specifics
and quirks are handled by all layers depending on the quirk.
@@ -67,7 +67,7 @@ Transport drivers attach a constant "struct hid_ll_driver" object with each
device. Once a device is registered with HID core, the callbacks provided via
this struct are used by HID core to communicate with the device.
Transport drivers are responsible of detecting device failures and unplugging.
Transport drivers are responsible for detecting device failures and unplugging.
HID core will operate a device as long as it is registered regardless of any
device failures. Once transport drivers detect unplug or failure events, they
must unregister the device from HID core and HID core will stop using the
@@ -101,7 +101,7 @@ properties in common.
channel. Any unrequested incoming or outgoing data report must be sent on
this channel and is never acknowledged by the remote side. Devices usually
send their input events on this channel. Outgoing events are normally
not send via intr, except if high throughput is required.
not sent via intr, except if high throughput is required.
- Control Channel (ctrl): The ctrl channel is used for synchronous requests and
device management. Unrequested data input events must not be sent on this
channel and are normally ignored. Instead, devices only send management
@@ -161,7 +161,7 @@ allowed on the intr channel and are the only means of data there.
payload may be blocked by the underlying transport driver if the
specification does not allow them.
- SET_REPORT: A SET_REPORT request has a report ID plus data as payload. It is
sent from host to device and a device must update it's current report state
sent from host to device and a device must update its current report state
according to the given data. Any of the 3 report types can be used. However,
INPUT reports as payload might be blocked by the underlying transport driver
if the specification does not allow them.
@@ -294,7 +294,7 @@ The available HID callbacks are:
void (*request) (struct hid_device *hdev, struct hid_report *report,
int reqtype)
Send an HID request on the ctrl channel. "report" contains the report that
Send a HID request on the ctrl channel. "report" contains the report that
should be sent and "reqtype" the request type. Request-type can be
HID_REQ_SET_REPORT or HID_REQ_GET_REPORT.

10
Documentation/hid/hiddev.rst
View File

@@ -27,7 +27,7 @@ the following::
--> hiddev.c ----> POWER / MONITOR CONTROL
In addition, other subsystems (apart from USB) can potentially feed
events into the input subsystem, but these have no effect on the hid
events into the input subsystem, but these have no effect on the HID
device interface.
Using the HID Device Interface
@@ -73,7 +73,7 @@ The hiddev API uses a read() interface, and a set of ioctl() calls.
HID devices exchange data with the host computer using data
bundles called "reports". Each report is divided into "fields",
each of which can have one or more "usages". In the hid-core,
each one of these usages has a single signed 32 bit value.
each one of these usages has a single signed 32-bit value.
read():
-------
@@ -113,7 +113,7 @@ HIDIOCAPPLICATION
- (none)
This ioctl call returns the HID application usage associated with the
hid device. The third argument to ioctl() specifies which application
HID device. The third argument to ioctl() specifies which application
index to get. This is useful when the device has more than one
application collection. If the index is invalid (greater or equal to
the number of application collections this device has) the ioctl
@@ -181,7 +181,7 @@ looked up by type (input, output or feature) and id, so these fields
must be filled in by the user. The ID can be absolute -- the actual
report id as reported by the device -- or relative --
HID_REPORT_ID_FIRST for the first report, and (HID_REPORT_ID_NEXT |
report_id) for the next report after report_id. Without a-priori
report_id) for the next report after report_id. Without a priori
information about report ids, the right way to use this ioctl is to
use the relative IDs above to enumerate the valid IDs. The ioctl
returns non-zero when there is no more next ID. The real report ID is
@@ -200,7 +200,7 @@ HIDIOCGUCODE
- struct hiddev_usage_ref (read/write)
Returns the usage_code in a hiddev_usage_ref structure, given that
given its report type, report id, field index, and index within the
its report type, report id, field index, and index within the
field have already been filled into the structure.
HIDIOCGUSAGE

5
Documentation/hid/hidraw.rst
View File

@@ -21,7 +21,7 @@ Hidraw is the only alternative, short of writing a custom kernel driver, for
these non-conformant devices.
A benefit of hidraw is that its use by userspace applications is independent
of the underlying hardware type. Currently, Hidraw is implemented for USB
of the underlying hardware type. Currently, hidraw is implemented for USB
and Bluetooth. In the future, as new hardware bus types are developed which
use the HID specification, hidraw will be expanded to add support for these
new bus types.
@@ -31,9 +31,10 @@ create hidraw device nodes. Udev will typically create the device nodes
directly under /dev (eg: /dev/hidraw0). As this location is distribution-
and udev rule-dependent, applications should use libudev to locate hidraw
devices attached to the system. There is a tutorial on libudev with a
working example at:
working example at::
http://www.signal11.us/oss/udev/
https://web.archive.org/web/2019*/www.signal11.us
The HIDRAW API
---------------

78
Documentation/hid/intel-ish-hid.rst
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@@ -4,19 +4,19 @@ Intel Integrated Sensor Hub (ISH)
A sensor hub enables the ability to offload sensor polling and algorithm
processing to a dedicated low power co-processor. This allows the core
processor to go into low power modes more often, resulting in the increased
processor to go into low power modes more often, resulting in increased
battery life.
There are many vendors providing external sensor hubs confirming to HID
Sensor usage tables, and used in several tablets, 2 in 1 convertible laptops
and embedded products. Linux had this support since Linux 3.9.
There are many vendors providing external sensor hubs conforming to HID
Sensor usage tables. These may be found in tablets, 2-in-1 convertible laptops
and embedded products. Linux has had this support since Linux 3.9.
Intel® introduced integrated sensor hubs as a part of the SoC starting from
Cherry Trail and now supported on multiple generations of CPU packages. There
are many commercial devices already shipped with Integrated Sensor Hubs (ISH).
These ISH also comply to HID sensor specification, but the difference is the
These ISH also comply to HID sensor specification, but the difference is the
transport protocol used for communication. The current external sensor hubs
mainly use HID over i2C or USB. But ISH doesn't use either i2c or USB.
mainly use HID over I2C or USB. But ISH doesn't use either I2C or USB.
1. Overview
===========
@@ -35,7 +35,7 @@ for a very high speed communication::
----------------- ----------------------
PCI PCI
----------------- ----------------------
|Host controller| --> | ISH processor |
|Host controller| --> | ISH processor |
----------------- ----------------------
USB Link
----------------- ----------------------
@@ -50,13 +50,13 @@ applications implemented in the firmware.
The ISH allows multiple sensor management applications executing in the
firmware. Like USB endpoints the messaging can be to/from a client. As part of
enumeration process, these clients are identified. These clients can be simple
HID sensor applications, sensor calibration application or senor firmware
update application.
HID sensor applications, sensor calibration applications or sensor firmware
update applications.
The implementation model is similar, like USB bus, ISH transport is also
implemented as a bus. Each client application executing in the ISH processor
is registered as a device on this bus. The driver, which binds each device
(ISH HID driver) identifies the device type and registers with the hid core.
(ISH HID driver) identifies the device type and registers with the HID core.
2. ISH Implementation: Block Diagram
====================================
@@ -104,7 +104,7 @@ is registered as a device on this bus. The driver, which binds each device
The ISH is exposed as "Non-VGA unclassified PCI device" to the host. The PCI
product and vendor IDs are changed from different generations of processors. So
the source code which enumerate drivers needs to update from generation to
the source code which enumerates drivers needs to update from generation to
generation.
3.2 Inter Processor Communication (IPC) driver
@@ -112,41 +112,42 @@ generation.
Location: drivers/hid/intel-ish-hid/ipc
The IPC message used memory mapped I/O. The registers are defined in
The IPC message uses memory mapped I/O. The registers are defined in
hw-ish-regs.h.
3.2.1 IPC/FW message types
^^^^^^^^^^^^^^^^^^^^^^^^^^
There are two types of messages, one for management of link and other messages
are to and from transport layers.
There are two types of messages, one for management of link and another for
messages to and from transport layers.
TX and RX of Transport messages
...............................
A set of memory mapped register offers support of multi byte messages TX and
RX (E.g.IPC_REG_ISH2HOST_MSG, IPC_REG_HOST2ISH_MSG). The IPC layer maintains
internal queues to sequence messages and send them in order to the FW.
A set of memory mapped register offers support of multi-byte messages TX and
RX (e.g. IPC_REG_ISH2HOST_MSG, IPC_REG_HOST2ISH_MSG). The IPC layer maintains
internal queues to sequence messages and send them in order to the firmware.
Optionally the caller can register handler to get notification of completion.
A door bell mechanism is used in messaging to trigger processing in host and
A doorbell mechanism is used in messaging to trigger processing in host and
client firmware side. When ISH interrupt handler is called, the ISH2HOST
doorbell register is used by host drivers to determine that the interrupt
is for ISH.
Each side has 32 32-bit message registers and a 32-bit doorbell. Doorbell
register has the following format:
Bits 0..6: fragment length (7 bits are used)
Bits 10..13: encapsulated protocol
Bits 16..19: management command (for IPC management protocol)
Bit 31: doorbell trigger (signal H/W interrupt to the other side)
Other bits are reserved, should be 0.
register has the following format::
Bits 0..6: fragment length (7 bits are used)
Bits 10..13: encapsulated protocol
Bits 16..19: management command (for IPC management protocol)
Bit 31: doorbell trigger (signal H/W interrupt to the other side)
Other bits are reserved, should be 0.
3.2.2 Transport layer interface
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
To abstract HW level IPC communication, a set of callbacks are registered.
To abstract HW level IPC communication, a set of callbacks is registered.
The transport layer uses them to send and receive messages.
Refer to struct ishtp_hw_ops for callbacks.
Refer to struct ishtp_hw_ops for callbacks.
3.3 ISH Transport layer
-----------------------
@@ -158,7 +159,7 @@ Location: drivers/hid/intel-ish-hid/ishtp/
The transport layer is a bi-directional protocol, which defines:
- Set of commands to start, stop, connect, disconnect and flow control
(ishtp/hbm.h) for details
(see ishtp/hbm.h for details)
- A flow control mechanism to avoid buffer overflows
This protocol resembles bus messages described in the following document:
@@ -168,14 +169,14 @@ specifications/dcmi-hi-1-0-spec.pdf "Chapter 7: Bus Message Layer"
3.3.2 Connection and Flow Control Mechanism
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Each FW client and a protocol is identified by an UUID. In order to communicate
Each FW client and a protocol is identified by a UUID. In order to communicate
to a FW client, a connection must be established using connect request and
response bus messages. If successful, a pair (host_client_id and fw_client_id)
will identify the connection.
Once connection is established, peers send each other flow control bus messages
independently. Every peer may send a message only if it has received a
flow-control credit before. Once it sent a message, it may not send another one
flow-control credit before. Once it has sent a message, it may not send another one
before receiving the next flow control credit.
Either side can send disconnect request bus message to end communication. Also
the link will be dropped if major FW reset occurs.
@@ -209,7 +210,7 @@ and DMA_XFER_ACK act as ownership indicators.
At initial state all outgoing memory belongs to the sender (TX to host, RX to
FW), DMA_XFER transfers ownership on the region that contains ISHTP message to
the receiving side, DMA_XFER_ACK returns ownership to the sender. A sender
needs not wait for previous DMA_XFER to be ack'ed, and may send another message
need not wait for previous DMA_XFER to be ack'ed, and may send another message
as long as remaining continuous memory in its ownership is enough.
In principle, multiple DMA_XFER and DMA_XFER_ACK messages may be sent at once
(up to IPC MTU), thus allowing for interrupt throttling.
@@ -219,8 +220,8 @@ fragments and via IPC otherwise.
3.3.4 Ring Buffers
^^^^^^^^^^^^^^^^^^
When a client initiate a connection, a ring or RX and TX buffers are allocated.
The size of ring can be specified by the client. HID client set 16 and 32 for
When a client initiates a connection, a ring of RX and TX buffers is allocated.
The size of ring can be specified by the client. HID client sets 16 and 32 for
TX and RX buffers respectively. On send request from client, the data to be
sent is copied to one of the send ring buffer and scheduled to be sent using
bus message protocol. These buffers are required because the FW may have not
@@ -230,10 +231,10 @@ to send. Same thing holds true on receive side and flow control is required.
3.3.5 Host Enumeration
^^^^^^^^^^^^^^^^^^^^^^
The host enumeration bus command allow discovery of clients present in the FW.
The host enumeration bus command allows discovery of clients present in the FW.
There can be multiple sensor clients and clients for calibration function.
To ease in implantation and allow independent driver handle each client
To ease implementation and allow independent drivers to handle each client,
this transport layer takes advantage of Linux Bus driver model. Each
client is registered as device on the transport bus (ishtp bus).
@@ -270,7 +271,7 @@ The ISHTP client driver is responsible for:
The functionality in these drivers is the same as an external sensor hub.
Refer to
Documentation/hid/hid-sensor.rst for HID sensor
Documentation/ABI/testing/sysfs-bus-iio for IIO ABIs to user space
Documentation/ABI/testing/sysfs-bus-iio for IIO ABIs to user space.
3.6 End to End HID transport Sequence Diagram
---------------------------------------------
@@ -341,9 +342,10 @@ Documentation/ABI/testing/sysfs-bus-iio for IIO ABIs to user space
3.7 ISH Debugging
-----------------
To debug ISH, event tracing mechanism is used. To enable debug logs
echo 1 > /sys/kernel/debug/tracing/events/intel_ish/enable
cat sys/kernel/debug/tracing/trace
To debug ISH, event tracing mechanism is used. To enable debug logs::
echo 1 > /sys/kernel/debug/tracing/events/intel_ish/enable
cat sys/kernel/debug/tracing/trace
3.8 ISH IIO sysfs Example on Lenovo thinkpad Yoga 260
-----------------------------------------------------

34
Documentation/hid/uhid.rst
View File

@@ -3,7 +3,7 @@ UHID - User-space I/O driver support for HID subsystem
======================================================
UHID allows user-space to implement HID transport drivers. Please see
hid-transport.txt for an introduction into HID transport drivers. This document
hid-transport.rst for an introduction into HID transport drivers. This document
relies heavily on the definitions declared there.
With UHID, a user-space transport driver can create kernel hid-devices for each
@@ -15,7 +15,7 @@ There is an example user-space application in ./samples/uhid/uhid-example.c
The UHID API
------------
UHID is accessed through a character misc-device. The minor-number is allocated
UHID is accessed through a character misc-device. The minor number is allocated
dynamically so you need to rely on udev (or similar) to create the device node.
This is /dev/uhid by default.
@@ -45,23 +45,23 @@ The "type" field defines the payload. For each type, there is a
payload-structure available in the union "u" (except for empty payloads). This
payload contains management and/or device data.
The first thing you should do is sending an UHID_CREATE2 event. This will
register the device. UHID will respond with an UHID_START event. You can now
The first thing you should do is send a UHID_CREATE2 event. This will
register the device. UHID will respond with a UHID_START event. You can now
start sending data to and reading data from UHID. However, unless UHID sends the
UHID_OPEN event, the internally attached HID Device Driver has no user attached.
That is, you might put your device asleep unless you receive the UHID_OPEN
event. If you receive the UHID_OPEN event, you should start I/O. If the last
user closes the HID device, you will receive an UHID_CLOSE event. This may be
followed by an UHID_OPEN event again and so on. There is no need to perform
user closes the HID device, you will receive a UHID_CLOSE event. This may be
followed by a UHID_OPEN event again and so on. There is no need to perform
reference-counting in user-space. That is, you will never receive multiple
UHID_OPEN events without an UHID_CLOSE event. The HID subsystem performs
UHID_OPEN events without a UHID_CLOSE event. The HID subsystem performs
ref-counting for you.
You may decide to ignore UHID_OPEN/UHID_CLOSE, though. I/O is allowed even
though the device may have no users.
If you want to send data on the interrupt channel to the HID subsystem, you send
an HID_INPUT2 event with your raw data payload. If the kernel wants to send data
on the interrupt channel to the device, you will read an UHID_OUTPUT event.
a HID_INPUT2 event with your raw data payload. If the kernel wants to send data
on the interrupt channel to the device, you will read a UHID_OUTPUT event.
Data requests on the control channel are currently limited to GET_REPORT and
SET_REPORT (no other data reports on the control channel are defined so far).
Those requests are always synchronous. That means, the kernel sends
@@ -71,7 +71,7 @@ the response via UHID_GET_REPORT_REPLY and UHID_SET_REPORT_REPLY to the kernel.
The kernel blocks internal driver-execution during such round-trips (times out
after a hard-coded period).
If your device disconnects, you should send an UHID_DESTROY event. This will
If your device disconnects, you should send a UHID_DESTROY event. This will
unregister the device. You can now send UHID_CREATE2 again to register a new
device.
If you close() the fd, the device is automatically unregistered and destroyed
@@ -125,7 +125,7 @@ UHID_START:
This is sent when the HID device is started. Consider this as an answer to
UHID_CREATE2. This is always the first event that is sent. Note that this
event might not be available immediately after write(UHID_CREATE2) returns.
Device drivers might required delayed setups.
Device drivers might require delayed setups.
This event contains a payload of type uhid_start_req. The "dev_flags" field
describes special behaviors of a device. The following flags are defined:
@@ -149,7 +149,7 @@ UHID_STOP:
reloaded/changed the device driver loaded on your HID device (or some other
maintenance actions happened).
You can usually ignored any UHID_STOP events safely.
You can usually ignore any UHID_STOP events safely.
UHID_OPEN:
This is sent when the HID device is opened. That is, the data that the HID
@@ -166,17 +166,17 @@ UHID_OUTPUT:
This is sent if the HID device driver wants to send raw data to the I/O
device on the interrupt channel. You should read the payload and forward it to
the device. The payload is of type "struct uhid_output_req".
This may be received even though you haven't received UHID_OPEN, yet.
This may be received even though you haven't received UHID_OPEN yet.
UHID_GET_REPORT:
This event is sent if the kernel driver wants to perform a GET_REPORT request
on the control channeld as described in the HID specs. The report-type and
on the control channel as described in the HID specs. The report-type and
report-number are available in the payload.
The kernel serializes GET_REPORT requests so there will never be two in
parallel. However, if you fail to respond with a UHID_GET_REPORT_REPLY, the
request might silently time out.
Once you read a GET_REPORT request, you shall forward it to the hid device and
remember the "id" field in the payload. Once your hid device responds to the
Once you read a GET_REPORT request, you shall forward it to the HID device and
remember the "id" field in the payload. Once your HID device responds to the
GET_REPORT (or if it fails), you must send a UHID_GET_REPORT_REPLY to the
kernel with the exact same "id" as in the request. If the request already
timed out, the kernel will ignore the response silently. The "id" field is
@@ -184,7 +184,7 @@ UHID_GET_REPORT:
UHID_SET_REPORT:
This is the SET_REPORT equivalent of UHID_GET_REPORT. On receipt, you shall
send a SET_REPORT request to your hid device. Once it replies, you must tell
send a SET_REPORT request to your HID device. Once it replies, you must tell
the kernel about it via UHID_SET_REPORT_REPLY.
The same restrictions as for UHID_GET_REPORT apply.

6
MAINTAINERS
View File

@@ -7908,6 +7908,12 @@ F: drivers/hid/
F: include/linux/hid*
F: include/uapi/linux/hid*
HID PLAYSTATION DRIVER
M: Roderick Colenbrander <roderick.colenbrander@sony.com>
L: linux-input@vger.kernel.org
S: Supported
F: drivers/hid/hid-playstation.c
HID SENSOR HUB DRIVERS
M: Jiri Kosina <jikos@kernel.org>
M: Jonathan Cameron <jic23@kernel.org>

93
arch/arm/boot/dts/cros-ec-keyboard.dtsi
View File

@@ -6,103 +6,18 @@
*/
#include <dt-bindings/input/input.h>
#include <dt-bindings/input/cros-ec-keyboard.h>
&cros_ec {
keyboard-controller {
keyboard_controller: keyboard-controller {
compatible = "google,cros-ec-keyb";
keypad,num-rows = <8>;
keypad,num-columns = <13>;
google,needs-ghost-filter;
linux,keymap = <
MATRIX_KEY(0x00, 0x01, KEY_LEFTMETA)
MATRIX_KEY(0x00, 0x02, KEY_F1)
MATRIX_KEY(0x00, 0x03, KEY_B)
MATRIX_KEY(0x00, 0x04, KEY_F10)
MATRIX_KEY(0x00, 0x05, KEY_RO)
MATRIX_KEY(0x00, 0x06, KEY_N)
MATRIX_KEY(0x00, 0x08, KEY_EQUAL)
MATRIX_KEY(0x00, 0x0a, KEY_RIGHTALT)
MATRIX_KEY(0x01, 0x01, KEY_ESC)
MATRIX_KEY(0x01, 0x02, KEY_F4)
MATRIX_KEY(0x01, 0x03, KEY_G)
MATRIX_KEY(0x01, 0x04, KEY_F7)
MATRIX_KEY(0x01, 0x06, KEY_H)
MATRIX_KEY(0x01, 0x08, KEY_APOSTROPHE)
MATRIX_KEY(0x01, 0x09, KEY_F9)
MATRIX_KEY(0x01, 0x0b, KEY_BACKSPACE)
MATRIX_KEY(0x01, 0x0c, KEY_HENKAN)
MATRIX_KEY(0x02, 0x00, KEY_LEFTCTRL)
MATRIX_KEY(0x02, 0x01, KEY_TAB)
MATRIX_KEY(0x02, 0x02, KEY_F3)
MATRIX_KEY(0x02, 0x03, KEY_T)
MATRIX_KEY(0x02, 0x04, KEY_F6)
MATRIX_KEY(0x02, 0x05, KEY_RIGHTBRACE)
MATRIX_KEY(0x02, 0x06, KEY_Y)
MATRIX_KEY(0x02, 0x07, KEY_102ND)
MATRIX_KEY(0x02, 0x08, KEY_LEFTBRACE)
MATRIX_KEY(0x02, 0x09, KEY_F8)
MATRIX_KEY(0x02, 0x0a, KEY_YEN)
MATRIX_KEY(0x03, 0x00, KEY_LEFTMETA)
MATRIX_KEY(0x03, 0x01, KEY_GRAVE)
MATRIX_KEY(0x03, 0x02, KEY_F2)
MATRIX_KEY(0x03, 0x03, KEY_5)
MATRIX_KEY(0x03, 0x04, KEY_F5)
MATRIX_KEY(0x03, 0x06, KEY_6)
MATRIX_KEY(0x03, 0x08, KEY_MINUS)
MATRIX_KEY(0x03, 0x09, KEY_F13)
MATRIX_KEY(0x03, 0x0b, KEY_BACKSLASH)
MATRIX_KEY(0x03, 0x0c, KEY_MUHENKAN)
MATRIX_KEY(0x04, 0x00, KEY_RIGHTCTRL)
MATRIX_KEY(0x04, 0x01, KEY_A)
MATRIX_KEY(0x04, 0x02, KEY_D)
MATRIX_KEY(0x04, 0x03, KEY_F)
MATRIX_KEY(0x04, 0x04, KEY_S)
MATRIX_KEY(0x04, 0x05, KEY_K)
MATRIX_KEY(0x04, 0x06, KEY_J)
MATRIX_KEY(0x04, 0x08, KEY_SEMICOLON)
MATRIX_KEY(0x04, 0x09, KEY_L)
MATRIX_KEY(0x04, 0x0a, KEY_BACKSLASH)
MATRIX_KEY(0x04, 0x0b, KEY_ENTER)
MATRIX_KEY(0x05, 0x01, KEY_Z)
MATRIX_KEY(0x05, 0x02, KEY_C)
MATRIX_KEY(0x05, 0x03, KEY_V)
MATRIX_KEY(0x05, 0x04, KEY_X)
MATRIX_KEY(0x05, 0x05, KEY_COMMA)
MATRIX_KEY(0x05, 0x06, KEY_M)
MATRIX_KEY(0x05, 0x07, KEY_LEFTSHIFT)
MATRIX_KEY(0x05, 0x08, KEY_SLASH)
MATRIX_KEY(0x05, 0x09, KEY_DOT)
MATRIX_KEY(0x05, 0x0b, KEY_SPACE)
MATRIX_KEY(0x06, 0x01, KEY_1)
MATRIX_KEY(0x06, 0x02, KEY_3)
MATRIX_KEY(0x06, 0x03, KEY_4)
MATRIX_KEY(0x06, 0x04, KEY_2)
MATRIX_KEY(0x06, 0x05, KEY_8)
MATRIX_KEY(0x06, 0x06, KEY_7)
MATRIX_KEY(0x06, 0x08, KEY_0)
MATRIX_KEY(0x06, 0x09, KEY_9)
MATRIX_KEY(0x06, 0x0a, KEY_LEFTALT)
MATRIX_KEY(0x06, 0x0b, KEY_DOWN)
MATRIX_KEY(0x06, 0x0c, KEY_RIGHT)
MATRIX_KEY(0x07, 0x01, KEY_Q)
MATRIX_KEY(0x07, 0x02, KEY_E)
MATRIX_KEY(0x07, 0x03, KEY_R)
MATRIX_KEY(0x07, 0x04, KEY_W)
MATRIX_KEY(0x07, 0x05, KEY_I)
MATRIX_KEY(0x07, 0x06, KEY_U)
MATRIX_KEY(0x07, 0x07, KEY_RIGHTSHIFT)
MATRIX_KEY(0x07, 0x08, KEY_P)
MATRIX_KEY(0x07, 0x09, KEY_O)
MATRIX_KEY(0x07, 0x0b, KEY_UP)
MATRIX_KEY(0x07, 0x0c, KEY_LEFT)
CROS_STD_TOP_ROW_KEYMAP
CROS_STD_MAIN_KEYMAP
>;
};
};

3
arch/arm64/configs/defconfig
View File

@@ -770,7 +770,8 @@ CONFIG_SND_SOC_LPASS_VA_MACRO=m
CONFIG_SND_SIMPLE_CARD=m
CONFIG_SND_AUDIO_GRAPH_CARD=m
CONFIG_HID_MULTITOUCH=m
CONFIG_I2C_HID=m
CONFIG_I2C_HID_ACPI=m
CONFIG_I2C_HID_OF=m
CONFIG_USB_CONN_GPIO=m
CONFIG_USB=y
CONFIG_USB_OTG=y

19
drivers/hid/Kconfig
View File

@@ -864,6 +864,24 @@ config HID_PLANTRONICS
Say M here if you may ever plug in a Plantronics USB audio device.
config HID_PLAYSTATION
tristate "PlayStation HID Driver"
depends on HID
select CRC32
select POWER_SUPPLY
help
Provides support for Sony PS5 controllers including support for
its special functionalities e.g. touchpad, lights and motion
sensors.
config PLAYSTATION_FF
bool "PlayStation force feedback support"
depends on HID_PLAYSTATION
select INPUT_FF_MEMLESS
help
Say Y here if you would like to enable force feedback support for
PlayStation game controllers.
config HID_PRIMAX
tristate "Primax non-fully HID-compliant devices"
depends on HID
@@ -920,6 +938,7 @@ config HID_SONY
* Sony PS3 Blue-ray Disk Remote Control (Bluetooth)
* Logitech Harmony adapter for Sony Playstation 3 (Bluetooth)
* Guitar Hero Live PS3 and Wii U guitar dongles
* Guitar Hero PS3 and PC guitar dongles
config SONY_FF
bool "Sony PS2/3/4 accessories force feedback support"

3
drivers/hid/Makefile
View File

@@ -95,6 +95,7 @@ hid-picolcd-$(CONFIG_HID_PICOLCD_CIR) += hid-picolcd_cir.o
hid-picolcd-$(CONFIG_DEBUG_FS) += hid-picolcd_debugfs.o
obj-$(CONFIG_HID_PLANTRONICS) += hid-plantronics.o
obj-$(CONFIG_HID_PLAYSTATION) += hid-playstation.o
obj-$(CONFIG_HID_PRIMAX) += hid-primax.o
obj-$(CONFIG_HID_REDRAGON) += hid-redragon.o
obj-$(CONFIG_HID_RETRODE) += hid-retrode.o
@@ -139,7 +140,7 @@ obj-$(CONFIG_USB_HID) += usbhid/
obj-$(CONFIG_USB_MOUSE) += usbhid/
obj-$(CONFIG_USB_KBD) += usbhid/
obj-$(CONFIG_I2C_HID) += i2c-hid/
obj-$(CONFIG_I2C_HID_CORE) += i2c-hid/
obj-$(CONFIG_INTEL_ISH_HID) += intel-ish-hid/
obj-$(INTEL_ISH_FIRMWARE_DOWNLOADER) += intel-ish-hid/

55
drivers/hid/hid-chicony.c
View File

@@ -21,6 +21,39 @@
#include "hid-ids.h"
#define CH_WIRELESS_CTL_REPORT_ID 0x11
static int ch_report_wireless(struct hid_report *report, u8 *data, int size)
{
struct hid_device *hdev = report->device;
struct input_dev *input;
if (report->id != CH_WIRELESS_CTL_REPORT_ID || report->maxfield != 1)
return 0;
input = report->field[0]->hidinput->input;
if (!input) {
hid_warn(hdev, "can't find wireless radio control's input");
return 0;
}
input_report_key(input, KEY_RFKILL, 1);
input_sync(input);
input_report_key(input, KEY_RFKILL, 0);
input_sync(input);
return 1;
}
static int ch_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
if (report->application == HID_GD_WIRELESS_RADIO_CTLS)
return ch_report_wireless(report, data, size);
return 0;
}
#define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
@@ -77,10 +110,30 @@ static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
return rdesc;
}
static int ch_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Chicony hid parse failed: %d\n", ret);
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Chicony hw start failed: %d\n", ret);
return ret;
}
return 0;
}
static const struct hid_device_id ch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
{ }
};
@@ -91,6 +144,8 @@ static struct hid_driver ch_driver = {
.id_table = ch_devices,
.report_fixup = ch_switch12_report_fixup,
.input_mapping = ch_input_mapping,
.probe = ch_probe,
.raw_event = ch_raw_event,
};
module_hid_driver(ch_driver);

9
drivers/hid/hid-core.c
View File

@@ -90,7 +90,7 @@ EXPORT_SYMBOL_GPL(hid_register_report);
* Register a new field for this report.
*/
static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages)
{
struct hid_field *field;
@@ -101,7 +101,7 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned
field = kzalloc((sizeof(struct hid_field) +
usages * sizeof(struct hid_usage) +
values * sizeof(unsigned)), GFP_KERNEL);
usages * sizeof(unsigned)), GFP_KERNEL);
if (!field)
return NULL;
@@ -300,7 +300,7 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
usages = max_t(unsigned, parser->local.usage_index,
parser->global.report_count);
field = hid_register_field(report, usages, parser->global.report_count);
field = hid_register_field(report, usages);
if (!field)
return 0;
@@ -1307,6 +1307,9 @@ EXPORT_SYMBOL_GPL(hid_open_report);
static s32 snto32(__u32 value, unsigned n)
{
if (!value || !n)
return 0;
switch (n) {
case 8: return ((__s8)value);
case 16: return ((__s16)value);

87
drivers/hid/hid-google-hammer.c
View File

@@ -392,30 +392,34 @@ static int hammer_input_mapping(struct hid_device *hdev, struct hid_input *hi,
return 0;
}
static int hammer_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
static void hammer_folded_event(struct hid_device *hdev, bool folded)
{
unsigned long flags;
spin_lock_irqsave(&cbas_ec_lock, flags);
/*
* If we are getting events from Whiskers that means that it
* is attached to the lid.
*/
cbas_ec.base_present = true;
cbas_ec.base_folded = folded;
hid_dbg(hdev, "%s: base: %d, folded: %d\n", __func__,
cbas_ec.base_present, cbas_ec.base_folded);
if (cbas_ec.input) {
input_report_switch(cbas_ec.input, SW_TABLET_MODE, folded);
input_sync(cbas_ec.input);
}
spin_unlock_irqrestore(&cbas_ec_lock, flags);
}
static int hammer_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (usage->hid == HID_USAGE_KBD_FOLDED) {
spin_lock_irqsave(&cbas_ec_lock, flags);
/*
* If we are getting events from Whiskers that means that it
* is attached to the lid.
*/
cbas_ec.base_present = true;
cbas_ec.base_folded = value;
hid_dbg(hid, "%s: base: %d, folded: %d\n", __func__,
cbas_ec.base_present, cbas_ec.base_folded);
if (cbas_ec.input) {
input_report_switch(cbas_ec.input,
SW_TABLET_MODE, value);
input_sync(cbas_ec.input);
}
spin_unlock_irqrestore(&cbas_ec_lock, flags);
hammer_folded_event(hid, value);
return 1; /* We handled this event */
}
@@ -457,6 +461,47 @@ static bool hammer_has_backlight_control(struct hid_device *hdev)
HID_GD_KEYBOARD, HID_AD_BRIGHTNESS);
}
static void hammer_get_folded_state(struct hid_device *hdev)
{
struct hid_report *report;
char *buf;
int len, rlen;
int a;
report = hdev->report_enum[HID_INPUT_REPORT].report_id_hash[0x0];
if (!report || report->maxfield < 1)
return;
len = hid_report_len(report) + 1;
buf = kmalloc(len, GFP_KERNEL);
if (!buf)
return;
rlen = hid_hw_raw_request(hdev, report->id, buf, len, report->type, HID_REQ_GET_REPORT);
if (rlen != len) {
hid_warn(hdev, "Unable to read base folded state: %d (expected %d)\n", rlen, len);
goto out;
}
for (a = 0; a < report->maxfield; a++) {
struct hid_field *field = report->field[a];
if (field->usage->hid == HID_USAGE_KBD_FOLDED) {
u32 value = hid_field_extract(hdev, buf+1,
field->report_offset, field->report_size);
hammer_folded_event(hdev, value);
break;
}
}
out:
kfree(buf);
}
static int hammer_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
@@ -481,6 +526,8 @@ static int hammer_probe(struct hid_device *hdev,
error = hid_hw_open(hdev);
if (error)
return error;
hammer_get_folded_state(hdev);
}
if (hammer_has_backlight_control(hdev)) {

11
drivers/hid/hid-ids.h
View File

@@ -40,6 +40,9 @@
#define USB_VENDOR_ID_ACTIONSTAR 0x2101
#define USB_DEVICE_ID_ACTIONSTAR_1011 0x1011
#define USB_VENDOR_ID_ACTIVISION 0x1430
#define USB_DEVICE_ID_ACTIVISION_GUITAR_DONGLE 0x474c
#define USB_VENDOR_ID_ADS_TECH 0x06e1
#define USB_DEVICE_ID_ADS_TECH_RADIO_SI470X 0xa155
@@ -270,6 +273,7 @@
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2 0x0939
#define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123
#define USB_DEVICE_ID_CHICONY_WIRELESS3 0x1236
#define USB_DEVICE_ID_ASUS_AK1D 0x1125
#define USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A 0x1408
#define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421
@@ -389,6 +393,7 @@
#define USB_DEVICE_ID_TOSHIBA_CLICK_L9W 0x0401
#define USB_DEVICE_ID_HP_X2 0x074d
#define USB_DEVICE_ID_HP_X2_10_COVER 0x0755
#define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817
#define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706
#define USB_VENDOR_ID_ELECOM 0x056e
@@ -641,6 +646,8 @@
#define USB_DEVICE_ID_INNEX_GENESIS_ATARI 0x4745
#define USB_VENDOR_ID_ITE 0x048d
#define I2C_VENDOR_ID_ITE 0x103c
#define I2C_DEVICE_ID_ITE_VOYO_WINPAD_A15 0x184f
#define USB_DEVICE_ID_ITE_LENOVO_YOGA 0x8386
#define USB_DEVICE_ID_ITE_LENOVO_YOGA2 0x8350
#define I2C_DEVICE_ID_ITE_LENOVO_LEGION_Y720 0x837a
@@ -1076,13 +1083,15 @@
#define USB_DEVICE_ID_SONY_PS4_CONTROLLER 0x05c4
#define USB_DEVICE_ID_SONY_PS4_CONTROLLER_2 0x09cc
#define USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE 0x0ba0
#define USB_DEVICE_ID_SONY_PS5_CONTROLLER 0x0ce6
#define USB_DEVICE_ID_SONY_MOTION_CONTROLLER 0x03d5
#define USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER 0x042f
#define USB_DEVICE_ID_SONY_BUZZ_CONTROLLER 0x0002
#define USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER 0x1000
#define USB_VENDOR_ID_SONY_GHLIVE 0x12ba
#define USB_VENDOR_ID_SONY_RHYTHM 0x12ba
#define USB_DEVICE_ID_SONY_PS3WIIU_GHLIVE_DONGLE 0x074b
#define USB_DEVICE_ID_SONY_PS3_GUITAR_DONGLE 0x0100
#define USB_VENDOR_ID_SINO_LITE 0x1345
#define USB_DEVICE_ID_SINO_LITE_CONTROLLER 0x3008

12
drivers/hid/hid-input.c
View File

@@ -324,6 +324,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
HID_BATTERY_QUIRK_IGNORE },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),
HID_BATTERY_QUIRK_IGNORE },
{}
};
@@ -1854,6 +1856,16 @@ static struct hid_input *hidinput_match_application(struct hid_report *report)
list_for_each_entry(hidinput, &hid->inputs, list) {
if (hidinput->application == report->application)
return hidinput;
/*
* Keep SystemControl and ConsumerControl applications together
* with the main keyboard, if present.
*/
if ((report->application == HID_GD_SYSTEM_CONTROL ||
report->application == HID_CP_CONSUMER_CONTROL) &&
hidinput->application == HID_GD_KEYBOARD) {
return hidinput;
}
}
return NULL;

12
drivers/hid/hid-ite.c
View File

@@ -23,11 +23,16 @@ static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int
hid_info(hdev, "Fixing up Acer Sw5-012 ITE keyboard report descriptor\n");
rdesc[163] = HID_MAIN_ITEM_RELATIVE;
}
/* For Acer One S1002 keyboard-dock */
/* For Acer One S1002/S1003 keyboard-dock */
if (*rsize == 188 && rdesc[185] == 0x81 && rdesc[186] == 0x02) {
hid_info(hdev, "Fixing up Acer S1002 ITE keyboard report descriptor\n");
hid_info(hdev, "Fixing up Acer S1002/S1003 ITE keyboard report descriptor\n");
rdesc[186] = HID_MAIN_ITEM_RELATIVE;
}
/* For Acer Aspire Switch 10E (SW3-016) keyboard-dock */
if (*rsize == 210 && rdesc[184] == 0x81 && rdesc[185] == 0x02) {
hid_info(hdev, "Fixing up Acer Aspire Switch 10E (SW3-016) ITE keyboard report descriptor\n");
rdesc[185] = HID_MAIN_ITEM_RELATIVE;
}
}
return rdesc;
@@ -114,7 +119,8 @@ static const struct hid_device_id ite_devices[] = {
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003) },
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
{ }
};
MODULE_DEVICE_TABLE(hid, ite_devices);

2
drivers/hid/hid-lg-g15.c
View File

@@ -647,7 +647,7 @@ static void lg_g15_input_close(struct input_dev *dev)
static int lg_g15_register_led(struct lg_g15_data *g15, int i)
{
const char * const led_names[] = {
static const char * const led_names[] = {
"g15::kbd_backlight",
"g15::lcd_backlight",
"g15::macro_preset1",

8
drivers/hid/hid-logitech-dj.c
View File

@@ -980,6 +980,7 @@ static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
case 0x07:
device_type = "eQUAD step 4 Gaming";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x08:
device_type = "eQUAD step 4 for gamepads";
@@ -994,7 +995,12 @@ static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x0d:
device_type = "eQUAD Lightspeed 1_1";
device_type = "eQUAD Lightspeed 1.1";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x0f:
device_type = "eQUAD Lightspeed 1.2";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;

246
drivers/hid/hid-logitech-hidpp.c
View File

@@ -92,6 +92,8 @@ MODULE_PARM_DESC(disable_tap_to_click,
#define HIDPP_CAPABILITY_BATTERY_MILEAGE BIT(2)
#define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS BIT(3)
#define HIDPP_CAPABILITY_BATTERY_VOLTAGE BIT(4)
#define HIDPP_CAPABILITY_BATTERY_PERCENTAGE BIT(5)
#define HIDPP_CAPABILITY_UNIFIED_BATTERY BIT(6)
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
@@ -152,6 +154,7 @@ struct hidpp_battery {
int voltage;
int charge_type;
bool online;
u8 supported_levels_1004;
};
/**
@@ -1171,7 +1174,7 @@ static int hidpp20_batterylevel_get_battery_info(struct hidpp_device *hidpp,
return 0;
}
static int hidpp20_query_battery_info(struct hidpp_device *hidpp)
static int hidpp20_query_battery_info_1000(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
@@ -1208,7 +1211,7 @@ static int hidpp20_query_battery_info(struct hidpp_device *hidpp)
return 0;
}
static int hidpp20_battery_event(struct hidpp_device *hidpp,
static int hidpp20_battery_event_1000(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
@@ -1380,6 +1383,224 @@ static int hidpp20_battery_voltage_event(struct hidpp_device *hidpp,
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x1004: Unified battery */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_UNIFIED_BATTERY 0x1004
#define CMD_UNIFIED_BATTERY_GET_CAPABILITIES 0x00
#define CMD_UNIFIED_BATTERY_GET_STATUS 0x10
#define EVENT_UNIFIED_BATTERY_STATUS_EVENT 0x00
#define FLAG_UNIFIED_BATTERY_LEVEL_CRITICAL BIT(0)
#define FLAG_UNIFIED_BATTERY_LEVEL_LOW BIT(1)
#define FLAG_UNIFIED_BATTERY_LEVEL_GOOD BIT(2)
#define FLAG_UNIFIED_BATTERY_LEVEL_FULL BIT(3)
#define FLAG_UNIFIED_BATTERY_FLAGS_RECHARGEABLE BIT(0)
#define FLAG_UNIFIED_BATTERY_FLAGS_STATE_OF_CHARGE BIT(1)
static int hidpp20_unifiedbattery_get_capabilities(struct hidpp_device *hidpp,
u8 feature_index)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS ||
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE) {
/* we have already set the device capabilities, so let's skip */
return 0;
}
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_UNIFIED_BATTERY_GET_CAPABILITIES,
NULL, 0, &response);
/* Ignore these intermittent errors */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
/*
* If the device supports state of charge (battery percentage) we won't
* export the battery level information. there are 4 possible battery
* levels and they all are optional, this means that the device might
* not support any of them, we are just better off with the battery
* percentage.
*/
if (params[1] & FLAG_UNIFIED_BATTERY_FLAGS_STATE_OF_CHARGE) {
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_PERCENTAGE;
hidpp->battery.supported_levels_1004 = 0;
} else {
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
hidpp->battery.supported_levels_1004 = params[0];
}
return 0;
}
static int hidpp20_unifiedbattery_map_status(struct hidpp_device *hidpp,
u8 charging_status,
u8 external_power_status)
{
int status;
switch (charging_status) {
case 0: /* discharging */
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 1: /* charging */
case 2: /* charging slow */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 3: /* complete */
status = POWER_SUPPLY_STATUS_FULL;
break;
case 4: /* error */
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
hid_info(hidpp->hid_dev, "%s: charging error",
hidpp->name);
break;
default:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
}
return status;
}
static int hidpp20_unifiedbattery_map_level(struct hidpp_device *hidpp,
u8 battery_level)
{
/* cler unsupported level bits */
battery_level &= hidpp->battery.supported_levels_1004;
if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_FULL)
return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_GOOD)
return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_LOW)
return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_CRITICAL)
return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
return POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
}
static int hidpp20_unifiedbattery_get_status(struct hidpp_device *hidpp,
u8 feature_index,
u8 *state_of_charge,
int *status,
int *level)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_UNIFIED_BATTERY_GET_STATUS,
NULL, 0, &response);
/* Ignore these intermittent errors */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
*state_of_charge = params[0];
*status = hidpp20_unifiedbattery_map_status(hidpp, params[2], params[3]);
*level = hidpp20_unifiedbattery_map_level(hidpp, params[1]);
return 0;
}
static int hidpp20_query_battery_info_1004(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
u8 state_of_charge;
int status, level;
if (hidpp->battery.feature_index == 0xff) {
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_UNIFIED_BATTERY,
&hidpp->battery.feature_index,
&feature_type);
if (ret)
return ret;
}
ret = hidpp20_unifiedbattery_get_capabilities(hidpp,
hidpp->battery.feature_index);
if (ret)
return ret;
ret = hidpp20_unifiedbattery_get_status(hidpp,
hidpp->battery.feature_index,
&state_of_charge,
&status,
&level);
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_UNIFIED_BATTERY;
hidpp->battery.capacity = state_of_charge;
hidpp->battery.status = status;
hidpp->battery.level = level;
hidpp->battery.online = true;
return 0;
}
static int hidpp20_battery_event_1004(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
u8 *params = (u8 *)report->fap.params;
int state_of_charge, status, level;
bool changed;
if (report->fap.feature_index != hidpp->battery.feature_index ||
report->fap.funcindex_clientid != EVENT_UNIFIED_BATTERY_STATUS_EVENT)
return 0;
state_of_charge = params[0];
status = hidpp20_unifiedbattery_map_status(hidpp, params[2], params[3]);
level = hidpp20_unifiedbattery_map_level(hidpp, params[1]);
changed = status != hidpp->battery.status ||
(state_of_charge != hidpp->battery.capacity &&
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE) ||
(level != hidpp->battery.level &&
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS);
if (changed) {
hidpp->battery.capacity = state_of_charge;
hidpp->battery.status = status;
hidpp->battery.level = level;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* Battery feature helpers */
/* -------------------------------------------------------------------------- */
static enum power_supply_property hidpp_battery_props[] = {
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_STATUS,
@@ -3307,7 +3528,10 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
}
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
ret = hidpp20_battery_event(hidpp, data, size);
ret = hidpp20_battery_event_1000(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp20_battery_event_1004(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp_solar_battery_event(hidpp, data, size);
@@ -3443,9 +3667,14 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp)
if (hidpp->quirks & HIDPP_QUIRK_CLASS_K750)
ret = hidpp_solar_request_battery_event(hidpp);
else {
ret = hidpp20_query_battery_voltage_info(hidpp);
/* we only support one battery feature right now, so let's
first check the ones that support battery level first
and leave voltage for last */
ret = hidpp20_query_battery_info_1000(hidpp);
if (ret)
ret = hidpp20_query_battery_info(hidpp);
ret = hidpp20_query_battery_info_1004(hidpp);
if (ret)
ret = hidpp20_query_battery_voltage_info(hidpp);
}
if (ret)
@@ -3473,7 +3702,8 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp)
num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 3;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE ||
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE)
battery_props[num_battery_props++] =
POWER_SUPPLY_PROP_CAPACITY;
@@ -3650,8 +3880,10 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
} else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_VOLTAGE)
hidpp20_query_battery_voltage_info(hidpp);
else if (hidpp->capabilities & HIDPP_CAPABILITY_UNIFIED_BATTERY)
hidpp20_query_battery_info_1004(hidpp);
else
hidpp20_query_battery_info(hidpp);
hidpp20_query_battery_info_1000(hidpp);
}
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);

10
drivers/hid/hid-multitouch.c
View File

@@ -1747,6 +1747,13 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
}
#ifdef CONFIG_PM
static int mt_suspend(struct hid_device *hdev, pm_message_t state)
{
/* High latency is desirable for power savings during S3/S0ix */
mt_set_modes(hdev, HID_LATENCY_HIGH, true, true);
return 0;
}
static int mt_reset_resume(struct hid_device *hdev)
{
mt_release_contacts(hdev);
@@ -1762,6 +1769,8 @@ static int mt_resume(struct hid_device *hdev)
hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
return 0;
}
#endif
@@ -2155,6 +2164,7 @@ static struct hid_driver mt_driver = {
.event = mt_event,
.report = mt_report,
#ifdef CONFIG_PM
.suspend = mt_suspend,
.reset_resume = mt_reset_resume,
.resume = mt_resume,
#endif

1351
drivers/hid/hid-playstation.c Normal file
View File

File diff suppressed because it is too large Load Diff

26
drivers/hid/hid-quirks.c
View File

@@ -180,7 +180,6 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_TRUST, USB_DEVICE_ID_TRUST_PANORA_TABLET), HID_QUIRK_MULTI_INPUT | HID_QUIRK_HIDINPUT_FORCE },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60), HID_QUIRK_MULTI_INPUT },
@@ -1029,7 +1028,7 @@ static DEFINE_MUTEX(dquirks_lock);
/* Runtime ("dynamic") quirks manipulation functions */
/**
* hid_exists_dquirk: find any dynamic quirks for a HID device
* hid_exists_dquirk - find any dynamic quirks for a HID device
* @hdev: the HID device to match
*
* Description:
@@ -1037,7 +1036,7 @@ static DEFINE_MUTEX(dquirks_lock);
* the pointer to the relevant struct hid_device_id if found.
* Must be called with a read lock held on dquirks_lock.
*
* Returns: NULL if no quirk found, struct hid_device_id * if found.
* Return: NULL if no quirk found, struct hid_device_id * if found.
*/
static struct hid_device_id *hid_exists_dquirk(const struct hid_device *hdev)
{
@@ -1061,7 +1060,7 @@ static struct hid_device_id *hid_exists_dquirk(const struct hid_device *hdev)
/**
* hid_modify_dquirk: add/replace a HID quirk
* hid_modify_dquirk - add/replace a HID quirk
* @id: the HID device to match
* @quirks: the unsigned long quirks value to add/replace
*
@@ -1070,7 +1069,7 @@ static struct hid_device_id *hid_exists_dquirk(const struct hid_device *hdev)
* quirks value with what was provided. Otherwise, add the quirk
* to the dynamic quirks list.
*
* Returns: 0 OK, -error on failure.
* Return: 0 OK, -error on failure.
*/
static int hid_modify_dquirk(const struct hid_device_id *id,
const unsigned long quirks)
@@ -1122,7 +1121,7 @@ static int hid_modify_dquirk(const struct hid_device_id *id,
}
/**
* hid_remove_all_dquirks: remove all runtime HID quirks from memory
* hid_remove_all_dquirks - remove all runtime HID quirks from memory
* @bus: bus to match against. Use HID_BUS_ANY if all need to be removed.
*
* Description:
@@ -1146,7 +1145,10 @@ static void hid_remove_all_dquirks(__u16 bus)
}
/**
* hid_quirks_init: apply HID quirks specified at module load time
* hid_quirks_init - apply HID quirks specified at module load time
* @quirks_param: array of quirks strings (vendor:product:quirks)
* @bus: bus type
* @count: number of quirks to check
*/
int hid_quirks_init(char **quirks_param, __u16 bus, int count)
{
@@ -1177,7 +1179,7 @@ int hid_quirks_init(char **quirks_param, __u16 bus, int count)
EXPORT_SYMBOL_GPL(hid_quirks_init);
/**
* hid_quirks_exit: release memory associated with dynamic_quirks
* hid_quirks_exit - release memory associated with dynamic_quirks
* @bus: a bus to match against
*
* Description:
@@ -1194,14 +1196,14 @@ void hid_quirks_exit(__u16 bus)
EXPORT_SYMBOL_GPL(hid_quirks_exit);
/**
* hid_gets_squirk: return any static quirks for a HID device
* hid_gets_squirk - return any static quirks for a HID device
* @hdev: the HID device to match
*
* Description:
* Given a HID device, return a pointer to the quirked hid_device_id entry
* associated with that device.
*
* Returns: the quirks.
* Return: the quirks.
*/
static unsigned long hid_gets_squirk(const struct hid_device *hdev)
{
@@ -1225,13 +1227,13 @@ static unsigned long hid_gets_squirk(const struct hid_device *hdev)
}
/**
* hid_lookup_quirk: return any quirks associated with a HID device
* hid_lookup_quirk - return any quirks associated with a HID device
* @hdev: the HID device to look for
*
* Description:
* Given a HID device, return any quirks associated with that device.
*
* Returns: an unsigned long quirks value.
* Return: an unsigned long quirks value.
*/
unsigned long hid_lookup_quirk(const struct hid_device *hdev)
{

6
drivers/hid/hid-roccat-arvo.c
View File

@@ -42,7 +42,7 @@ static ssize_t arvo_sysfs_show_mode_key(struct device *dev,
if (retval)
return retval;
return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.state);
return sysfs_emit(buf, "%d\n", temp_buf.state);
}
static ssize_t arvo_sysfs_set_mode_key(struct device *dev,
@@ -92,7 +92,7 @@ static ssize_t arvo_sysfs_show_key_mask(struct device *dev,
if (retval)
return retval;
return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.key_mask);
return sysfs_emit(buf, "%d\n", temp_buf.key_mask);
}
static ssize_t arvo_sysfs_set_key_mask(struct device *dev,
@@ -146,7 +146,7 @@ static ssize_t arvo_sysfs_show_actual_profile(struct device *dev,
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", arvo->actual_profile);
return sysfs_emit(buf, "%d\n", arvo->actual_profile);
}
static ssize_t arvo_sysfs_set_actual_profile(struct device *dev,

20
drivers/hid/hid-sony.c
View File

@@ -12,6 +12,7 @@
* Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
* Copyright (c) 2018 Todd Kelner
* Copyright (c) 2020 Pascal Giard <pascal.giard@etsmtl.ca>
* Copyright (c) 2020 Sanjay Govind <sanjay.govind9@gmail.com>
*/
/*
@@ -59,7 +60,8 @@
#define NSG_MR5U_REMOTE_BT BIT(14)
#define NSG_MR7U_REMOTE_BT BIT(15)
#define SHANWAN_GAMEPAD BIT(16)
#define GHL_GUITAR_PS3WIIU BIT(17)
#define GH_GUITAR_CONTROLLER BIT(17)
#define GHL_GUITAR_PS3WIIU BIT(18)
#define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
#define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
@@ -84,7 +86,7 @@
#define NSG_MRXU_MAX_Y 1868
#define GHL_GUITAR_POKE_INTERVAL 10 /* In seconds */
#define GHL_GUITAR_TILT_USAGE 44
#define GUITAR_TILT_USAGE 44
/* Magic value and data taken from GHLtarUtility:
* https://github.com/ghlre/GHLtarUtility/blob/master/PS3Guitar.cs
@@ -692,7 +694,7 @@ static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
unsigned int abs = usage->hid & HID_USAGE;
if (abs == GHL_GUITAR_TILT_USAGE) {
if (abs == GUITAR_TILT_USAGE) {
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, ABS_RY);
return 1;
}
@@ -1481,7 +1483,7 @@ static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
if (sc->quirks & DUALSHOCK4_CONTROLLER)
return ds4_mapping(hdev, hi, field, usage, bit, max);
if (sc->quirks & GHL_GUITAR_PS3WIIU)
if (sc->quirks & GH_GUITAR_CONTROLLER)
return guitar_mapping(hdev, hi, field, usage, bit, max);
/* Let hid-core decide for the others */
@@ -3167,8 +3169,14 @@ static const struct hid_device_id sony_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
.driver_data = NSG_MR7U_REMOTE_BT },
/* Guitar Hero Live PS3 and Wii U guitar dongles */
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_GHLIVE, USB_DEVICE_ID_SONY_PS3WIIU_GHLIVE_DONGLE),
.driver_data = GHL_GUITAR_PS3WIIU},
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3WIIU_GHLIVE_DONGLE),
.driver_data = GHL_GUITAR_PS3WIIU | GH_GUITAR_CONTROLLER },
/* Guitar Hero PC Guitar Dongle */
{ HID_USB_DEVICE(USB_VENDOR_ID_ACTIVISION, USB_DEVICE_ID_ACTIVISION_GUITAR_DONGLE),
.driver_data = GH_GUITAR_CONTROLLER },
/* Guitar Hero PS3 World Tour Guitar Dongle */
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3_GUITAR_DONGLE),
.driver_data = GH_GUITAR_CONTROLLER },
{ }
};
MODULE_DEVICE_TABLE(hid, sony_devices);

2
drivers/hid/hid-uclogic-core.c
View File

@@ -371,6 +371,8 @@ static const struct hid_device_id uclogic_devices[] = {
USB_DEVICE_ID_HUION_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_HS64) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TRUST,
USB_DEVICE_ID_TRUST_PANORA_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_HUION_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,

2
drivers/hid/hid-uclogic-params.c
View File

@@ -1045,6 +1045,8 @@ int uclogic_params_init(struct uclogic_params *params,
uclogic_params_init_with_pen_unused(&p);
}
break;
case VID_PID(USB_VENDOR_ID_TRUST,
USB_DEVICE_ID_TRUST_PANORA_TABLET):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_G5):
/* Ignore non-pen interfaces */

47
drivers/hid/i2c-hid/Kconfig
View File

@@ -2,18 +2,55 @@
menu "I2C HID support"
depends on I2C
config I2C_HID
tristate "HID over I2C transport layer"
config I2C_HID_ACPI
tristate "HID over I2C transport layer ACPI driver"
default n
depends on I2C && INPUT
select HID
depends on I2C && INPUT && ACPI
help
Say Y here if you use a keyboard, a touchpad, a touchscreen, or any
other HID based devices which is connected to your computer via I2C.
This driver supports ACPI-based systems.
If unsure, say N.
This support is also available as a module. If so, the module
will be called i2c-hid.
will be called i2c-hid-acpi. It will also build/depend on the
module i2c-hid.
config I2C_HID_OF
tristate "HID over I2C transport layer Open Firmware driver"
default n
depends on I2C && INPUT && OF
help
Say Y here if you use a keyboard, a touchpad, a touchscreen, or any
other HID based devices which is connected to your computer via I2C.
This driver supports Open Firmware (Device Tree)-based systems.
If unsure, say N.
This support is also available as a module. If so, the module
will be called i2c-hid-of. It will also build/depend on the
module i2c-hid.
config I2C_HID_OF_GOODIX
tristate "Driver for Goodix hid-i2c based devices on OF systems"
default n
depends on I2C && INPUT && OF
help
Say Y here if you want support for Goodix i2c devices that use
the i2c-hid protocol on Open Firmware (Device Tree)-based
systems.
If unsure, say N.
This support is also available as a module. If so, the module
will be called i2c-hid-of-goodix. It will also build/depend on
the module i2c-hid.
endmenu
config I2C_HID_CORE
tristate
default y if I2C_HID_ACPI=y || I2C_HID_OF=y || I2C_HID_OF_GOODIX=y
default m if I2C_HID_ACPI=m || I2C_HID_OF=m || I2C_HID_OF_GOODIX=m
select HID

6
drivers/hid/i2c-hid/Makefile
View File

@@ -3,7 +3,11 @@
# Makefile for the I2C input drivers
#
obj-$(CONFIG_I2C_HID) += i2c-hid.o
obj-$(CONFIG_I2C_HID_CORE) += i2c-hid.o
i2c-hid-objs = i2c-hid-core.o
i2c-hid-$(CONFIG_DMI) += i2c-hid-dmi-quirks.o
obj-$(CONFIG_I2C_HID_ACPI) += i2c-hid-acpi.o
obj-$(CONFIG_I2C_HID_OF) += i2c-hid-of.o
obj-$(CONFIG_I2C_HID_OF_GOODIX) += i2c-hid-of-goodix.o

143
drivers/hid/i2c-hid/i2c-hid-acpi.c Normal file
View File

@@ -0,0 +1,143 @@
/*
* HID over I2C ACPI Subclass
*
* Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
* Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
* Copyright (c) 2012 Red Hat, Inc
*
* This code was forked out of the core code, which was partly based on
* "USB HID support for Linux":
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2007-2008 Oliver Neukum
* Copyright (c) 2006-2010 Jiri Kosina
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm.h>
#include "i2c-hid.h"
struct i2c_hid_acpi {
struct i2chid_ops ops;
struct i2c_client *client;
};
static const struct acpi_device_id i2c_hid_acpi_blacklist[] = {
/*
* The CHPN0001 ACPI device, which is used to describe the Chipone
* ICN8505 controller, has a _CID of PNP0C50 but is not HID compatible.
*/
{"CHPN0001", 0 },
{ },
};
static int i2c_hid_acpi_get_descriptor(struct i2c_client *client)
{
static guid_t i2c_hid_guid =
GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555,
0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE);
union acpi_object *obj;
struct acpi_device *adev;
acpi_handle handle;
u16 hid_descriptor_address;
handle = ACPI_HANDLE(&client->dev);
if (!handle || acpi_bus_get_device(handle, &adev)) {
dev_err(&client->dev, "Error could not get ACPI device\n");
return -ENODEV;
}
if (acpi_match_device_ids(adev, i2c_hid_acpi_blacklist) == 0)
return -ENODEV;
obj = acpi_evaluate_dsm_typed(handle, &i2c_hid_guid, 1, 1, NULL,
ACPI_TYPE_INTEGER);
if (!obj) {
dev_err(&client->dev, "Error _DSM call to get HID descriptor address failed\n");
return -ENODEV;
}
hid_descriptor_address = obj->integer.value;
ACPI_FREE(obj);
return hid_descriptor_address;
}
static void i2c_hid_acpi_shutdown_tail(struct i2chid_ops *ops)
{
struct i2c_hid_acpi *ihid_acpi =
container_of(ops, struct i2c_hid_acpi, ops);
struct device *dev = &ihid_acpi->client->dev;
acpi_device_set_power(ACPI_COMPANION(dev), ACPI_STATE_D3_COLD);
}
static int i2c_hid_acpi_probe(struct i2c_client *client,
const struct i2c_device_id *dev_id)
{
struct device *dev = &client->dev;
struct i2c_hid_acpi *ihid_acpi;
struct acpi_device *adev;
u16 hid_descriptor_address;
int ret;
ihid_acpi = devm_kzalloc(&client->dev, sizeof(*ihid_acpi), GFP_KERNEL);
if (!ihid_acpi)
return -ENOMEM;
ihid_acpi->client = client;
ihid_acpi->ops.shutdown_tail = i2c_hid_acpi_shutdown_tail;
ret = i2c_hid_acpi_get_descriptor(client);
if (ret < 0)
return ret;
hid_descriptor_address = ret;
adev = ACPI_COMPANION(dev);
if (adev)
acpi_device_fix_up_power(adev);
if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
device_set_wakeup_capable(dev, true);
device_set_wakeup_enable(dev, false);
}
return i2c_hid_core_probe(client, &ihid_acpi->ops,
hid_descriptor_address);
}
static const struct acpi_device_id i2c_hid_acpi_match[] = {
{"ACPI0C50", 0 },
{"PNP0C50", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, i2c_hid_acpi_match);
static struct i2c_driver i2c_hid_acpi_driver = {
.driver = {
.name = "i2c_hid_acpi",
.pm = &i2c_hid_core_pm,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.acpi_match_table = ACPI_PTR(i2c_hid_acpi_match),
},
.probe = i2c_hid_acpi_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
};
module_i2c_driver(i2c_hid_acpi_driver);
MODULE_DESCRIPTION("HID over I2C ACPI driver");
MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
MODULE_LICENSE("GPL");

256
drivers/hid/i2c-hid/i2c-hid-core.c
View File

@@ -35,11 +35,6 @@
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/mutex.h>
#include <linux/acpi.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <linux/platform_data/i2c-hid.h>
#include "../hid-ids.h"
#include "i2c-hid.h"
@@ -156,10 +151,10 @@ struct i2c_hid {
wait_queue_head_t wait; /* For waiting the interrupt */
struct i2c_hid_platform_data pdata;
bool irq_wake_enabled;
struct mutex reset_lock;
struct i2chid_ops *ops;
};
static const struct i2c_hid_quirks {
@@ -171,6 +166,8 @@ static const struct i2c_hid_quirks {
I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV },
{ I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288,
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
{ I2C_VENDOR_ID_ITE, I2C_DEVICE_ID_ITE_VOYO_WINPAD_A15,
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
{ I2C_VENDOR_ID_RAYDIUM, I2C_PRODUCT_ID_RAYDIUM_3118,
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
{ USB_VENDOR_ID_ELAN, HID_ANY_ID,
@@ -884,144 +881,36 @@ static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid)
return 0;
}
#ifdef CONFIG_ACPI
static const struct acpi_device_id i2c_hid_acpi_blacklist[] = {
/*
* The CHPN0001 ACPI device, which is used to describe the Chipone
* ICN8505 controller, has a _CID of PNP0C50 but is not HID compatible.
*/
{"CHPN0001", 0 },
{ },
};
static int i2c_hid_acpi_pdata(struct i2c_client *client,
struct i2c_hid_platform_data *pdata)
static int i2c_hid_core_power_up(struct i2c_hid *ihid)
{
static guid_t i2c_hid_guid =
GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555,
0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE);
union acpi_object *obj;
struct acpi_device *adev;
acpi_handle handle;
if (!ihid->ops->power_up)
return 0;
handle = ACPI_HANDLE(&client->dev);
if (!handle || acpi_bus_get_device(handle, &adev)) {
dev_err(&client->dev, "Error could not get ACPI device\n");
return -ENODEV;
}
if (acpi_match_device_ids(adev, i2c_hid_acpi_blacklist) == 0)
return -ENODEV;
obj = acpi_evaluate_dsm_typed(handle, &i2c_hid_guid, 1, 1, NULL,
ACPI_TYPE_INTEGER);
if (!obj) {
dev_err(&client->dev, "Error _DSM call to get HID descriptor address failed\n");
return -ENODEV;
}
pdata->hid_descriptor_address = obj->integer.value;
ACPI_FREE(obj);
return 0;
return ihid->ops->power_up(ihid->ops);
}
static void i2c_hid_acpi_fix_up_power(struct device *dev)
static void i2c_hid_core_power_down(struct i2c_hid *ihid)
{
struct acpi_device *adev;
if (!ihid->ops->power_down)
return;
adev = ACPI_COMPANION(dev);
if (adev)
acpi_device_fix_up_power(adev);
ihid->ops->power_down(ihid->ops);
}
static void i2c_hid_acpi_enable_wakeup(struct device *dev)
static void i2c_hid_core_shutdown_tail(struct i2c_hid *ihid)
{
if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
device_set_wakeup_capable(dev, true);
device_set_wakeup_enable(dev, false);
}
if (!ihid->ops->shutdown_tail)
return;
ihid->ops->shutdown_tail(ihid->ops);
}
static void i2c_hid_acpi_shutdown(struct device *dev)
{
acpi_device_set_power(ACPI_COMPANION(dev), ACPI_STATE_D3_COLD);
}
static const struct acpi_device_id i2c_hid_acpi_match[] = {
{"ACPI0C50", 0 },
{"PNP0C50", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, i2c_hid_acpi_match);
#else
static inline int i2c_hid_acpi_pdata(struct i2c_client *client,
struct i2c_hid_platform_data *pdata)
{
return -ENODEV;
}
static inline void i2c_hid_acpi_fix_up_power(struct device *dev) {}
static inline void i2c_hid_acpi_enable_wakeup(struct device *dev) {}
static inline void i2c_hid_acpi_shutdown(struct device *dev) {}
#endif
#ifdef CONFIG_OF
static int i2c_hid_of_probe(struct i2c_client *client,
struct i2c_hid_platform_data *pdata)
{
struct device *dev = &client->dev;
u32 val;
int ret;
ret = of_property_read_u32(dev->of_node, "hid-descr-addr", &val);
if (ret) {
dev_err(&client->dev, "HID register address not provided\n");
return -ENODEV;
}
if (val >> 16) {
dev_err(&client->dev, "Bad HID register address: 0x%08x\n",
val);
return -EINVAL;
}
pdata->hid_descriptor_address = val;
return 0;
}
static const struct of_device_id i2c_hid_of_match[] = {
{ .compatible = "hid-over-i2c" },
{},
};
MODULE_DEVICE_TABLE(of, i2c_hid_of_match);
#else
static inline int i2c_hid_of_probe(struct i2c_client *client,
struct i2c_hid_platform_data *pdata)
{
return -ENODEV;
}
#endif
static void i2c_hid_fwnode_probe(struct i2c_client *client,
struct i2c_hid_platform_data *pdata)
{
u32 val;
if (!device_property_read_u32(&client->dev, "post-power-on-delay-ms",
&val))
pdata->post_power_delay_ms = val;
}
static int i2c_hid_probe(struct i2c_client *client,
const struct i2c_device_id *dev_id)
int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
u16 hid_descriptor_address)
{
int ret;
struct i2c_hid *ihid;
struct hid_device *hid;
__u16 hidRegister;
struct i2c_hid_platform_data *platform_data = client->dev.platform_data;
dbg_hid("HID probe called for i2c 0x%02x\n", client->addr);
@@ -1042,44 +931,17 @@ static int i2c_hid_probe(struct i2c_client *client,
if (!ihid)
return -ENOMEM;
if (client->dev.of_node) {
ret = i2c_hid_of_probe(client, &ihid->pdata);
if (ret)
return ret;
} else if (!platform_data) {
ret = i2c_hid_acpi_pdata(client, &ihid->pdata);
if (ret)
return ret;
} else {
ihid->pdata = *platform_data;
}
ihid->ops = ops;
/* Parse platform agnostic common properties from ACPI / device tree */
i2c_hid_fwnode_probe(client, &ihid->pdata);
ihid->pdata.supplies[0].supply = "vdd";
ihid->pdata.supplies[1].supply = "vddl";
ret = devm_regulator_bulk_get(&client->dev,
ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
ret = i2c_hid_core_power_up(ihid);
if (ret)
return ret;
ret = regulator_bulk_enable(ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
if (ret < 0)
return ret;
if (ihid->pdata.post_power_delay_ms)
msleep(ihid->pdata.post_power_delay_ms);
i2c_set_clientdata(client, ihid);
ihid->client = client;
hidRegister = ihid->pdata.hid_descriptor_address;
ihid->wHIDDescRegister = cpu_to_le16(hidRegister);
ihid->wHIDDescRegister = cpu_to_le16(hid_descriptor_address);
init_waitqueue_head(&ihid->wait);
mutex_init(&ihid->reset_lock);
@@ -1089,11 +951,7 @@ static int i2c_hid_probe(struct i2c_client *client,
* real computation later. */
ret = i2c_hid_alloc_buffers(ihid, HID_MIN_BUFFER_SIZE);
if (ret < 0)
goto err_regulator;
i2c_hid_acpi_fix_up_power(&client->dev);
i2c_hid_acpi_enable_wakeup(&client->dev);
goto err_powered;
device_enable_async_suspend(&client->dev);
@@ -1102,19 +960,19 @@ static int i2c_hid_probe(struct i2c_client *client,
if (ret < 0) {
dev_dbg(&client->dev, "nothing at this address: %d\n", ret);
ret = -ENXIO;
goto err_regulator;
goto err_powered;
}
ret = i2c_hid_fetch_hid_descriptor(ihid);
if (ret < 0) {
dev_err(&client->dev,
"Failed to fetch the HID Descriptor\n");
goto err_regulator;
goto err_powered;
}
ret = i2c_hid_init_irq(client);
if (ret < 0)
goto err_regulator;
goto err_powered;
hid = hid_allocate_device();
if (IS_ERR(hid)) {
@@ -1153,14 +1011,14 @@ err_mem_free:
err_irq:
free_irq(client->irq, ihid);
err_regulator:
regulator_bulk_disable(ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
err_powered:
i2c_hid_core_power_down(ihid);
i2c_hid_free_buffers(ihid);
return ret;
}
EXPORT_SYMBOL_GPL(i2c_hid_core_probe);
static int i2c_hid_remove(struct i2c_client *client)
int i2c_hid_core_remove(struct i2c_client *client)
{
struct i2c_hid *ihid = i2c_get_clientdata(client);
struct hid_device *hid;
@@ -1173,24 +1031,25 @@ static int i2c_hid_remove(struct i2c_client *client)
if (ihid->bufsize)
i2c_hid_free_buffers(ihid);
regulator_bulk_disable(ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
i2c_hid_core_power_down(ihid);
return 0;
}
EXPORT_SYMBOL_GPL(i2c_hid_core_remove);
static void i2c_hid_shutdown(struct i2c_client *client)
void i2c_hid_core_shutdown(struct i2c_client *client)
{
struct i2c_hid *ihid = i2c_get_clientdata(client);
i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
free_irq(client->irq, ihid);
i2c_hid_acpi_shutdown(&client->dev);
i2c_hid_core_shutdown_tail(ihid);
}
EXPORT_SYMBOL_GPL(i2c_hid_core_shutdown);
#ifdef CONFIG_PM_SLEEP
static int i2c_hid_suspend(struct device *dev)
static int i2c_hid_core_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct i2c_hid *ihid = i2c_get_clientdata(client);
@@ -1217,14 +1076,13 @@ static int i2c_hid_suspend(struct device *dev)
hid_warn(hid, "Failed to enable irq wake: %d\n",
wake_status);
} else {
regulator_bulk_disable(ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
i2c_hid_core_power_down(ihid);
}
return 0;
}
static int i2c_hid_resume(struct device *dev)
static int i2c_hid_core_resume(struct device *dev)
{
int ret;
struct i2c_client *client = to_i2c_client(dev);
@@ -1233,13 +1091,7 @@ static int i2c_hid_resume(struct device *dev)
int wake_status;
if (!device_may_wakeup(&client->dev)) {
ret = regulator_bulk_enable(ARRAY_SIZE(ihid->pdata.supplies),
ihid->pdata.supplies);
if (ret)
hid_warn(hid, "Failed to enable supplies: %d\n", ret);
if (ihid->pdata.post_power_delay_ms)
msleep(ihid->pdata.post_power_delay_ms);
i2c_hid_core_power_up(ihid);
} else if (ihid->irq_wake_enabled) {
wake_status = disable_irq_wake(client->irq);
if (!wake_status)
@@ -1276,34 +1128,10 @@ static int i2c_hid_resume(struct device *dev)
}
#endif
static const struct dev_pm_ops i2c_hid_pm = {
SET_SYSTEM_SLEEP_PM_OPS(i2c_hid_suspend, i2c_hid_resume)
const struct dev_pm_ops i2c_hid_core_pm = {
SET_SYSTEM_SLEEP_PM_OPS(i2c_hid_core_suspend, i2c_hid_core_resume)
};
static const struct i2c_device_id i2c_hid_id_table[] = {
{ "hid", 0 },
{ "hid-over-i2c", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, i2c_hid_id_table);
static struct i2c_driver i2c_hid_driver = {
.driver = {
.name = "i2c_hid",
.pm = &i2c_hid_pm,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.acpi_match_table = ACPI_PTR(i2c_hid_acpi_match),
.of_match_table = of_match_ptr(i2c_hid_of_match),
},
.probe = i2c_hid_probe,
.remove = i2c_hid_remove,
.shutdown = i2c_hid_shutdown,
.id_table = i2c_hid_id_table,
};
module_i2c_driver(i2c_hid_driver);
EXPORT_SYMBOL_GPL(i2c_hid_core_pm);
MODULE_DESCRIPTION("HID over I2C core driver");
MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");

116
drivers/hid/i2c-hid/i2c-hid-of-goodix.c Normal file
View File

@@ -0,0 +1,116 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for Goodix touchscreens that use the i2c-hid protocol.
*
* Copyright 2020 Google LLC
*/
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/regulator/consumer.h>
#include "i2c-hid.h"
struct goodix_i2c_hid_timing_data {
unsigned int post_gpio_reset_delay_ms;
unsigned int post_power_delay_ms;
};
struct i2c_hid_of_goodix {
struct i2chid_ops ops;
struct regulator *vdd;
struct gpio_desc *reset_gpio;
const struct goodix_i2c_hid_timing_data *timings;
};
static int goodix_i2c_hid_power_up(struct i2chid_ops *ops)
{
struct i2c_hid_of_goodix *ihid_goodix =
container_of(ops, struct i2c_hid_of_goodix, ops);
int ret;
ret = regulator_enable(ihid_goodix->vdd);
if (ret)
return ret;
if (ihid_goodix->timings->post_power_delay_ms)
msleep(ihid_goodix->timings->post_power_delay_ms);
gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 0);
if (ihid_goodix->timings->post_gpio_reset_delay_ms)
msleep(ihid_goodix->timings->post_gpio_reset_delay_ms);
return 0;
}
static void goodix_i2c_hid_power_down(struct i2chid_ops *ops)
{
struct i2c_hid_of_goodix *ihid_goodix =
container_of(ops, struct i2c_hid_of_goodix, ops);
gpiod_set_value_cansleep(ihid_goodix->reset_gpio, 1);
regulator_disable(ihid_goodix->vdd);
}
static int i2c_hid_of_goodix_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_hid_of_goodix *ihid_goodix;
ihid_goodix = devm_kzalloc(&client->dev, sizeof(*ihid_goodix),
GFP_KERNEL);
if (!ihid_goodix)
return -ENOMEM;
ihid_goodix->ops.power_up = goodix_i2c_hid_power_up;
ihid_goodix->ops.power_down = goodix_i2c_hid_power_down;
/* Start out with reset asserted */
ihid_goodix->reset_gpio =
devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ihid_goodix->reset_gpio))
return PTR_ERR(ihid_goodix->reset_gpio);
ihid_goodix->vdd = devm_regulator_get(&client->dev, "vdd");
if (IS_ERR(ihid_goodix->vdd))
return PTR_ERR(ihid_goodix->vdd);
ihid_goodix->timings = device_get_match_data(&client->dev);
return i2c_hid_core_probe(client, &ihid_goodix->ops, 0x0001);
}
static const struct goodix_i2c_hid_timing_data goodix_gt7375p_timing_data = {
.post_power_delay_ms = 10,
.post_gpio_reset_delay_ms = 180,
};
static const struct of_device_id goodix_i2c_hid_of_match[] = {
{ .compatible = "goodix,gt7375p", .data = &goodix_gt7375p_timing_data },
{ }
};
MODULE_DEVICE_TABLE(of, goodix_i2c_hid_of_match);
static struct i2c_driver goodix_i2c_hid_ts_driver = {
.driver = {
.name = "i2c_hid_of_goodix",
.pm = &i2c_hid_core_pm,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(goodix_i2c_hid_of_match),
},
.probe = i2c_hid_of_goodix_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
};
module_i2c_driver(goodix_i2c_hid_ts_driver);
MODULE_AUTHOR("Douglas Anderson <dianders@chromium.org>");
MODULE_DESCRIPTION("Goodix i2c-hid touchscreen driver");
MODULE_LICENSE("GPL v2");

143
drivers/hid/i2c-hid/i2c-hid-of.c Normal file
View File

@@ -0,0 +1,143 @@
/*
* HID over I2C Open Firmware Subclass
*
* Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
* Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
* Copyright (c) 2012 Red Hat, Inc
*
* This code was forked out of the core code, which was partly based on
* "USB HID support for Linux":
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2007-2008 Oliver Neukum
* Copyright (c) 2006-2010 Jiri Kosina
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/regulator/consumer.h>
#include "i2c-hid.h"
struct i2c_hid_of {
struct i2chid_ops ops;
struct i2c_client *client;
struct regulator_bulk_data supplies[2];
int post_power_delay_ms;
};
static int i2c_hid_of_power_up(struct i2chid_ops *ops)
{
struct i2c_hid_of *ihid_of = container_of(ops, struct i2c_hid_of, ops);
struct device *dev = &ihid_of->client->dev;
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(ihid_of->supplies),
ihid_of->supplies);
if (ret) {
dev_warn(dev, "Failed to enable supplies: %d\n", ret);
return ret;
}
if (ihid_of->post_power_delay_ms)
msleep(ihid_of->post_power_delay_ms);
return 0;
}
static void i2c_hid_of_power_down(struct i2chid_ops *ops)
{
struct i2c_hid_of *ihid_of = container_of(ops, struct i2c_hid_of, ops);
regulator_bulk_disable(ARRAY_SIZE(ihid_of->supplies),
ihid_of->supplies);
}
static int i2c_hid_of_probe(struct i2c_client *client,
const struct i2c_device_id *dev_id)
{
struct device *dev = &client->dev;
struct i2c_hid_of *ihid_of;
u16 hid_descriptor_address;
int ret;
u32 val;
ihid_of = devm_kzalloc(&client->dev, sizeof(*ihid_of), GFP_KERNEL);
if (!ihid_of)
return -ENOMEM;
ihid_of->ops.power_up = i2c_hid_of_power_up;
ihid_of->ops.power_down = i2c_hid_of_power_down;
ret = of_property_read_u32(dev->of_node, "hid-descr-addr", &val);
if (ret) {
dev_err(&client->dev, "HID register address not provided\n");
return -ENODEV;
}
if (val >> 16) {
dev_err(&client->dev, "Bad HID register address: 0x%08x\n",
val);
return -EINVAL;
}
hid_descriptor_address = val;
if (!device_property_read_u32(&client->dev, "post-power-on-delay-ms",
&val))
ihid_of->post_power_delay_ms = val;
ihid_of->supplies[0].supply = "vdd";
ihid_of->supplies[1].supply = "vddl";
ret = devm_regulator_bulk_get(&client->dev,
ARRAY_SIZE(ihid_of->supplies),
ihid_of->supplies);
if (ret)
return ret;
return i2c_hid_core_probe(client, &ihid_of->ops,
hid_descriptor_address);
}
static const struct of_device_id i2c_hid_of_match[] = {
{ .compatible = "hid-over-i2c" },
{},
};
MODULE_DEVICE_TABLE(of, i2c_hid_of_match);
static const struct i2c_device_id i2c_hid_of_id_table[] = {
{ "hid", 0 },
{ "hid-over-i2c", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, i2c_hid_of_id_table);
static struct i2c_driver i2c_hid_of_driver = {
.driver = {
.name = "i2c_hid_of",
.pm = &i2c_hid_core_pm,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(i2c_hid_of_match),
},
.probe = i2c_hid_of_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
.id_table = i2c_hid_of_id_table,
};
module_i2c_driver(i2c_hid_of_driver);
MODULE_DESCRIPTION("HID over I2C OF driver");
MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
MODULE_LICENSE("GPL");

22
drivers/hid/i2c-hid/i2c-hid.h
View File

@@ -3,6 +3,7 @@
#ifndef I2C_HID_H
#define I2C_HID_H
#include <linux/i2c.h>
#ifdef CONFIG_DMI
struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name);
@@ -17,4 +18,25 @@ static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
{ return NULL; }
#endif
/**
* struct i2chid_ops - Ops provided to the core.
*
* @power_up: do sequencing to power up the device.
* @power_down: do sequencing to power down the device.
* @shutdown_tail: called at the end of shutdown.
*/
struct i2chid_ops {
int (*power_up)(struct i2chid_ops *ops);
void (*power_down)(struct i2chid_ops *ops);
void (*shutdown_tail)(struct i2chid_ops *ops);
};
int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
u16 hid_descriptor_address);
int i2c_hid_core_remove(struct i2c_client *client);
void i2c_hid_core_shutdown(struct i2c_client *client);
extern const struct dev_pm_ops i2c_hid_core_pm;
#endif

2
drivers/hid/intel-ish-hid/ipc/hw-ish.h
View File

@@ -27,6 +27,7 @@
#define CMP_H_DEVICE_ID 0x06FC
#define EHL_Ax_DEVICE_ID 0x4BB3
#define TGL_LP_DEVICE_ID 0xA0FC
#define TGL_H_DEVICE_ID 0x43FC
#define REVISION_ID_CHT_A0 0x6
#define REVISION_ID_CHT_Ax_SI 0x0
@@ -81,5 +82,6 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev);
int ish_hw_start(struct ishtp_device *dev);
void ish_device_disable(struct ishtp_device *dev);
int ish_disable_dma(struct ishtp_device *dev);
void ish_set_host_ready(struct ishtp_device *dev);
#endif /* _ISHTP_HW_ISH_H_ */

27
drivers/hid/intel-ish-hid/ipc/ipc.c
View File

@@ -193,6 +193,33 @@ static void ish_clr_host_rdy(struct ishtp_device *dev)
ish_reg_write(dev, IPC_REG_HOST_COMM, host_status);
}
static bool ish_chk_host_rdy(struct ishtp_device *dev)
{
uint32_t host_status = ish_reg_read(dev, IPC_REG_HOST_COMM);
return (host_status & IPC_HOSTCOMM_READY_BIT);
}
/**
* ish_set_host_ready() - reconfig ipc host registers
* @dev: ishtp device pointer
*
* Set host to ready state
* This API is called in some case:
* fw is still on, but ipc is powered down.
* such as OOB case.
*
* Return: 0 for success else error fault code
*/
void ish_set_host_ready(struct ishtp_device *dev)
{
if (ish_chk_host_rdy(dev))
return;
ish_set_host_rdy(dev);
set_host_ready(dev);
}
/**
* _ishtp_read_hdr() - Read message header
* @dev: ISHTP device pointer

55
drivers/hid/intel-ish-hid/ipc/pci-ish.c
View File

@@ -5,6 +5,7 @@
* Copyright (c) 2014-2016, Intel Corporation.
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
@@ -37,6 +38,7 @@ static const struct pci_device_id ish_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, CMP_H_DEVICE_ID)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, EHL_Ax_DEVICE_ID)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, TGL_LP_DEVICE_ID)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, TGL_H_DEVICE_ID)},
{0, }
};
MODULE_DEVICE_TABLE(pci, ish_pci_tbl);
@@ -111,6 +113,42 @@ static inline bool ish_should_leave_d0i3(struct pci_dev *pdev)
return !pm_resume_via_firmware() || pdev->device == CHV_DEVICE_ID;
}
static int enable_gpe(struct device *dev)
{
#ifdef CONFIG_ACPI
acpi_status acpi_sts;
struct acpi_device *adev;
struct acpi_device_wakeup *wakeup;
adev = ACPI_COMPANION(dev);
if (!adev) {
dev_err(dev, "get acpi handle failed\n");
return -ENODEV;
}
wakeup = &adev->wakeup;
acpi_sts = acpi_enable_gpe(wakeup->gpe_device, wakeup->gpe_number);
if (ACPI_FAILURE(acpi_sts)) {
dev_err(dev, "enable ose_gpe failed\n");
return -EIO;
}
return 0;
#else
return -ENODEV;
#endif
}
static void enable_pme_wake(struct pci_dev *pdev)
{
if ((pci_pme_capable(pdev, PCI_D0) ||
pci_pme_capable(pdev, PCI_D3hot) ||
pci_pme_capable(pdev, PCI_D3cold)) && !enable_gpe(&pdev->dev)) {
pci_pme_active(pdev, true);
dev_dbg(&pdev->dev, "ish ipc driver pme wake enabled\n");
}
}
/**
* ish_probe() - PCI driver probe callback
* @pdev: pci device
@@ -179,6 +217,10 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
init_waitqueue_head(&ishtp->suspend_wait);
init_waitqueue_head(&ishtp->resume_wait);
/* Enable PME for EHL */
if (pdev->device == EHL_Ax_DEVICE_ID)
enable_pme_wake(pdev);
ret = ish_init(ishtp);
if (ret)
return ret;
@@ -218,11 +260,15 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
{
struct pci_dev *pdev = to_pci_dev(ish_resume_device);
struct ishtp_device *dev = pci_get_drvdata(pdev);
uint32_t fwsts = dev->ops->get_fw_status(dev);
int ret;
if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag) {
if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag
&& IPC_IS_ISH_ILUP(fwsts)) {
disable_irq_wake(pdev->irq);
ish_set_host_ready(dev);
ishtp_send_resume(dev);
/* Waiting to get resume response */
@@ -317,6 +363,13 @@ static int __maybe_unused ish_resume(struct device *device)
struct pci_dev *pdev = to_pci_dev(device);
struct ishtp_device *dev = pci_get_drvdata(pdev);
/* add this to finish power flow for EHL */
if (dev->pdev->device == EHL_Ax_DEVICE_ID) {
pci_set_power_state(pdev, PCI_D0);
enable_pme_wake(pdev);
dev_dbg(dev->devc, "set power state to D0 for ehl\n");
}
ish_resume_device = device;
dev->resume_flag = 1;

2
drivers/hid/wacom_sys.c
View File

@@ -1825,7 +1825,7 @@ static ssize_t wacom_show_speed(struct device *dev,
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed);
return sysfs_emit(buf, "%i\n", wacom->wacom_wac.bt_high_speed);
}
static ssize_t wacom_store_speed(struct device *dev,

7
drivers/hid/wacom_wac.c
View File

@@ -2600,7 +2600,12 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
wacom_wac->is_invalid_bt_frame = !value;
return;
case HID_DG_CONTACTMAX:
features->touch_max = value;
if (!features->touch_max) {
features->touch_max = value;
} else {
hid_warn(hdev, "%s: ignoring attempt to overwrite non-zero touch_max "
"%d -> %d\n", __func__, features->touch_max, value);
}
return;
}

7
drivers/input/joydev.c
View File

@@ -456,7 +456,7 @@ static int joydev_handle_JSIOCSAXMAP(struct joydev *joydev,
if (IS_ERR(abspam))
return PTR_ERR(abspam);
for (i = 0; i < joydev->nabs; i++) {
for (i = 0; i < len && i < joydev->nabs; i++) {
if (abspam[i] > ABS_MAX) {
retval = -EINVAL;
goto out;
@@ -480,6 +480,9 @@ static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev,
int i;
int retval = 0;
if (len % sizeof(*keypam))
return -EINVAL;
len = min(len, sizeof(joydev->keypam));
/* Validate the map. */
@@ -487,7 +490,7 @@ static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev,
if (IS_ERR(keypam))
return PTR_ERR(keypam);
for (i = 0; i < joydev->nkey; i++) {
for (i = 0; i < (len / 2) && i < joydev->nkey; i++) {
if (keypam[i] > KEY_MAX || keypam[i] < BTN_MISC) {
retval = -EINVAL;
goto out;

7
drivers/input/joystick/Kconfig
View File

@@ -382,4 +382,11 @@ config JOYSTICK_FSIA6B
To compile this driver as a module, choose M here: the
module will be called fsia6b.
config JOYSTICK_N64
bool "N64 controller"
depends on MACH_NINTENDO64
help
Say Y here if you want enable support for the four
built-in controller ports on the Nintendo 64 console.
endif

2
drivers/input/joystick/Makefile
View File

@@ -24,6 +24,7 @@ obj-$(CONFIG_JOYSTICK_INTERACT) += interact.o
obj-$(CONFIG_JOYSTICK_JOYDUMP) += joydump.o
obj-$(CONFIG_JOYSTICK_MAGELLAN) += magellan.o
obj-$(CONFIG_JOYSTICK_MAPLE) += maplecontrol.o
obj-$(CONFIG_JOYSTICK_N64) += n64joy.o
obj-$(CONFIG_JOYSTICK_PSXPAD_SPI) += psxpad-spi.o
obj-$(CONFIG_JOYSTICK_PXRC) += pxrc.o
obj-$(CONFIG_JOYSTICK_SIDEWINDER) += sidewinder.o
@@ -37,4 +38,3 @@ obj-$(CONFIG_JOYSTICK_WARRIOR) += warrior.o
obj-$(CONFIG_JOYSTICK_WALKERA0701) += walkera0701.o
obj-$(CONFIG_JOYSTICK_XPAD) += xpad.o
obj-$(CONFIG_JOYSTICK_ZHENHUA) += zhenhua.o

345
drivers/input/joystick/n64joy.c Normal file
View File

@@ -0,0 +1,345 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Support for the four N64 controllers.
*
* Copyright (c) 2021 Lauri Kasanen
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/limits.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/timer.h>
MODULE_AUTHOR("Lauri Kasanen <cand@gmx.com>");
MODULE_DESCRIPTION("Driver for N64 controllers");
MODULE_LICENSE("GPL");
#define PIF_RAM 0x1fc007c0
#define SI_DRAM_REG 0
#define SI_READ_REG 1
#define SI_WRITE_REG 4
#define SI_STATUS_REG 6
#define SI_STATUS_DMA_BUSY BIT(0)
#define SI_STATUS_IO_BUSY BIT(1)
#define N64_CONTROLLER_ID 0x0500
#define MAX_CONTROLLERS 4
static const char *n64joy_phys[MAX_CONTROLLERS] = {
"n64joy/port0",
"n64joy/port1",
"n64joy/port2",
"n64joy/port3",
};
struct n64joy_priv {
u64 si_buf[8] ____cacheline_aligned;
struct timer_list timer;
struct mutex n64joy_mutex;
struct input_dev *n64joy_dev[MAX_CONTROLLERS];
u32 __iomem *reg_base;
u8 n64joy_opened;
};
struct joydata {
unsigned int: 16; /* unused */
unsigned int err: 2;
unsigned int: 14; /* unused */
union {
u32 data;
struct {
unsigned int a: 1;
unsigned int b: 1;
unsigned int z: 1;
unsigned int start: 1;
unsigned int up: 1;
unsigned int down: 1;
unsigned int left: 1;
unsigned int right: 1;
unsigned int: 2; /* unused */
unsigned int l: 1;
unsigned int r: 1;
unsigned int c_up: 1;
unsigned int c_down: 1;
unsigned int c_left: 1;
unsigned int c_right: 1;
signed int x: 8;
signed int y: 8;
};
};
};
static void n64joy_write_reg(u32 __iomem *reg_base, const u8 reg, const u32 value)
{
writel(value, reg_base + reg);
}
static u32 n64joy_read_reg(u32 __iomem *reg_base, const u8 reg)
{
return readl(reg_base + reg);
}
static void n64joy_wait_si_dma(u32 __iomem *reg_base)
{
while (n64joy_read_reg(reg_base, SI_STATUS_REG) &
(SI_STATUS_DMA_BUSY | SI_STATUS_IO_BUSY))
cpu_relax();
}
static void n64joy_exec_pif(struct n64joy_priv *priv, const u64 in[8])
{
unsigned long flags;
dma_cache_wback_inv((unsigned long) in, 8 * 8);
dma_cache_inv((unsigned long) priv->si_buf, 8 * 8);
local_irq_save(flags);
n64joy_wait_si_dma(priv->reg_base);
barrier();
n64joy_write_reg(priv->reg_base, SI_DRAM_REG, virt_to_phys(in));
barrier();
n64joy_write_reg(priv->reg_base, SI_WRITE_REG, PIF_RAM);
barrier();
n64joy_wait_si_dma(priv->reg_base);
barrier();
n64joy_write_reg(priv->reg_base, SI_DRAM_REG, virt_to_phys(priv->si_buf));
barrier();
n64joy_write_reg(priv->reg_base, SI_READ_REG, PIF_RAM);
barrier();
n64joy_wait_si_dma(priv->reg_base);
local_irq_restore(flags);
}
static const u64 polldata[] ____cacheline_aligned = {
0xff010401ffffffff,
0xff010401ffffffff,
0xff010401ffffffff,
0xff010401ffffffff,
0xfe00000000000000,
0,
0,
1
};
static void n64joy_poll(struct timer_list *t)
{
const struct joydata *data;
struct n64joy_priv *priv = container_of(t, struct n64joy_priv, timer);
struct input_dev *dev;
u32 i;
n64joy_exec_pif(priv, polldata);
data = (struct joydata *) priv->si_buf;
for (i = 0; i < MAX_CONTROLLERS; i++) {
if (!priv->n64joy_dev[i])
continue;
dev = priv->n64joy_dev[i];
/* d-pad */
input_report_key(dev, BTN_DPAD_UP, data[i].up);
input_report_key(dev, BTN_DPAD_DOWN, data[i].down);
input_report_key(dev, BTN_DPAD_LEFT, data[i].left);
input_report_key(dev, BTN_DPAD_RIGHT, data[i].right);
/* c buttons */
input_report_key(dev, BTN_FORWARD, data[i].c_up);
input_report_key(dev, BTN_BACK, data[i].c_down);
input_report_key(dev, BTN_LEFT, data[i].c_left);
input_report_key(dev, BTN_RIGHT, data[i].c_right);
/* matching buttons */
input_report_key(dev, BTN_START, data[i].start);
input_report_key(dev, BTN_Z, data[i].z);
/* remaining ones: a, b, l, r */
input_report_key(dev, BTN_0, data[i].a);
input_report_key(dev, BTN_1, data[i].b);
input_report_key(dev, BTN_2, data[i].l);
input_report_key(dev, BTN_3, data[i].r);
input_report_abs(dev, ABS_X, data[i].x);
input_report_abs(dev, ABS_Y, data[i].y);
input_sync(dev);
}
mod_timer(&priv->timer, jiffies + msecs_to_jiffies(16));
}
static int n64joy_open(struct input_dev *dev)
{
struct n64joy_priv *priv = input_get_drvdata(dev);
int err;
err = mutex_lock_interruptible(&priv->n64joy_mutex);
if (err)
return err;
if (!priv->n64joy_opened) {
/*
* We could use the vblank irq, but it's not important if
* the poll point slightly changes.
*/
timer_setup(&priv->timer, n64joy_poll, 0);
mod_timer(&priv->timer, jiffies + msecs_to_jiffies(16));
}
priv->n64joy_opened++;
mutex_unlock(&priv->n64joy_mutex);
return err;
}
static void n64joy_close(struct input_dev *dev)
{
struct n64joy_priv *priv = input_get_drvdata(dev);
mutex_lock(&priv->n64joy_mutex);
if (!--priv->n64joy_opened)
del_timer_sync(&priv->timer);
mutex_unlock(&priv->n64joy_mutex);
}
static const u64 __initconst scandata[] ____cacheline_aligned = {
0xff010300ffffffff,
0xff010300ffffffff,
0xff010300ffffffff,
0xff010300ffffffff,
0xfe00000000000000,
0,
0,
1
};
/*
* The target device is embedded and RAM-constrained. We save RAM
* by initializing in __init code that gets dropped late in boot.
* For the same reason there is no module or unloading support.
*/
static int __init n64joy_probe(struct platform_device *pdev)
{
const struct joydata *data;
struct n64joy_priv *priv;
struct input_dev *dev;
int err = 0;
u32 i, j, found = 0;
priv = kzalloc(sizeof(struct n64joy_priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
mutex_init(&priv->n64joy_mutex);
priv->reg_base = devm_platform_ioremap_resource(pdev, 0);
if (!priv->reg_base) {
err = -EINVAL;
goto fail;
}
/* The controllers are not hotpluggable, so we can scan in init */
n64joy_exec_pif(priv, scandata);
data = (struct joydata *) priv->si_buf;
for (i = 0; i < MAX_CONTROLLERS; i++) {
if (!data[i].err && data[i].data >> 16 == N64_CONTROLLER_ID) {
found++;
dev = priv->n64joy_dev[i] = input_allocate_device();
if (!priv->n64joy_dev[i]) {
err = -ENOMEM;
goto fail;
}
input_set_drvdata(dev, priv);
dev->name = "N64 controller";
dev->phys = n64joy_phys[i];
dev->id.bustype = BUS_HOST;
dev->id.vendor = 0;
dev->id.product = data[i].data >> 16;
dev->id.version = 0;
dev->dev.parent = &pdev->dev;
dev->open = n64joy_open;
dev->close = n64joy_close;
/* d-pad */
input_set_capability(dev, EV_KEY, BTN_DPAD_UP);
input_set_capability(dev, EV_KEY, BTN_DPAD_DOWN);
input_set_capability(dev, EV_KEY, BTN_DPAD_LEFT);
input_set_capability(dev, EV_KEY, BTN_DPAD_RIGHT);
/* c buttons */
input_set_capability(dev, EV_KEY, BTN_LEFT);
input_set_capability(dev, EV_KEY, BTN_RIGHT);
input_set_capability(dev, EV_KEY, BTN_FORWARD);
input_set_capability(dev, EV_KEY, BTN_BACK);
/* matching buttons */
input_set_capability(dev, EV_KEY, BTN_START);
input_set_capability(dev, EV_KEY, BTN_Z);
/* remaining ones: a, b, l, r */
input_set_capability(dev, EV_KEY, BTN_0);
input_set_capability(dev, EV_KEY, BTN_1);
input_set_capability(dev, EV_KEY, BTN_2);
input_set_capability(dev, EV_KEY, BTN_3);
for (j = 0; j < 2; j++)
input_set_abs_params(dev, ABS_X + j,
S8_MIN, S8_MAX, 0, 0);
err = input_register_device(dev);
if (err) {
input_free_device(dev);
goto fail;
}
}
}
pr_info("%u controller(s) connected\n", found);
if (!found)
return -ENODEV;
return 0;
fail:
for (i = 0; i < MAX_CONTROLLERS; i++) {
if (!priv->n64joy_dev[i])
continue;
input_unregister_device(priv->n64joy_dev[i]);
}
return err;
}
static struct platform_driver n64joy_driver = {
.driver = {
.name = "n64joy",
},
};
static int __init n64joy_init(void)
{
return platform_driver_probe(&n64joy_driver, n64joy_probe);
}
module_init(n64joy_init);

1
drivers/input/joystick/xpad.c
View File

@@ -305,6 +305,7 @@ static const struct xpad_device {
{ 0x1bad, 0xfd00, "Razer Onza TE", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xfd01, "Razer Onza", 0, XTYPE_XBOX360 },
{ 0x20d6, 0x2001, "BDA Xbox Series X Wired Controller", 0, XTYPE_XBOXONE },
{ 0x20d6, 0x2009, "PowerA Enhanced Wired Controller for Xbox Series X|S", 0, XTYPE_XBOXONE },
{ 0x20d6, 0x281f, "PowerA Wired Controller For Xbox 360", 0, XTYPE_XBOX360 },
{ 0x2e24, 0x0652, "Hyperkin Duke X-Box One pad", 0, XTYPE_XBOXONE },
{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },

6
drivers/input/keyboard/Kconfig
View File

@@ -446,7 +446,7 @@ config KEYBOARD_MPR121
config KEYBOARD_SNVS_PWRKEY
tristate "IMX SNVS Power Key Driver"
depends on ARCH_MXC || COMPILE_TEST
depends on ARCH_MXC || (COMPILE_TEST && HAS_IOMEM)
depends on OF
help
This is the snvs powerkey driver for the Freescale i.MX application
@@ -685,7 +685,7 @@ config KEYBOARD_OMAP
config KEYBOARD_OMAP4
tristate "TI OMAP4+ keypad support"
depends on OF || ARCH_OMAP2PLUS
depends on (OF && HAS_IOMEM) || ARCH_OMAP2PLUS
select INPUT_MATRIXKMAP
help
Say Y here if you want to use the OMAP4+ keypad.
@@ -773,7 +773,7 @@ config KEYBOARD_CAP11XX
config KEYBOARD_BCM
tristate "Broadcom keypad driver"
depends on OF && HAVE_CLK
depends on OF && HAVE_CLK && HAS_IOMEM
select INPUT_MATRIXKMAP
default ARCH_BCM_CYGNUS
help

23
drivers/input/keyboard/applespi.c
View File

@@ -48,6 +48,7 @@
#include <linux/efi.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/ktime.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/spinlock.h>
@@ -409,7 +410,7 @@ struct applespi_data {
unsigned int cmd_msg_cntr;
/* lock to protect the above parameters and flags below */
spinlock_t cmd_msg_lock;
bool cmd_msg_queued;
ktime_t cmd_msg_queued;
enum applespi_evt_type cmd_evt_type;
struct led_classdev backlight_info;
@@ -729,7 +730,7 @@ static void applespi_msg_complete(struct applespi_data *applespi,
wake_up_all(&applespi->drain_complete);
if (is_write_msg) {
applespi->cmd_msg_queued = false;
applespi->cmd_msg_queued = 0;
applespi_send_cmd_msg(applespi);
}
@@ -748,6 +749,8 @@ static void applespi_async_write_complete(void *context)
applespi->tx_status,
APPLESPI_STATUS_SIZE);
udelay(SPI_RW_CHG_DELAY_US);
if (!applespi_check_write_status(applespi, applespi->wr_m.status)) {
/*
* If we got an error, we presumably won't get the expected
@@ -771,8 +774,16 @@ static int applespi_send_cmd_msg(struct applespi_data *applespi)
return 0;
/* check whether send is in progress */
if (applespi->cmd_msg_queued)
return 0;
if (applespi->cmd_msg_queued) {
if (ktime_ms_delta(ktime_get(), applespi->cmd_msg_queued) < 1000)
return 0;
dev_warn(&applespi->spi->dev, "Command %d timed out\n",
applespi->cmd_evt_type);
applespi->cmd_msg_queued = 0;
applespi->write_active = false;
}
/* set up packet */
memset(packet, 0, APPLESPI_PACKET_SIZE);
@@ -869,7 +880,7 @@ static int applespi_send_cmd_msg(struct applespi_data *applespi)
return sts;
}
applespi->cmd_msg_queued = true;
applespi->cmd_msg_queued = ktime_get_coarse();
applespi->write_active = true;
return 0;
@@ -1921,7 +1932,7 @@ static int __maybe_unused applespi_resume(struct device *dev)
applespi->drain = false;
applespi->have_cl_led_on = false;
applespi->have_bl_level = 0;
applespi->cmd_msg_queued = false;
applespi->cmd_msg_queued = 0;
applespi->read_active = false;
applespi->write_active = false;

79
drivers/input/keyboard/cros_ec_keyb.c
View File

@@ -27,6 +27,8 @@
#include <asm/unaligned.h>
#define MAX_NUM_TOP_ROW_KEYS 15
/**
* struct cros_ec_keyb - Structure representing EC keyboard device
*
@@ -42,6 +44,9 @@
* @idev: The input device for the matrix keys.
* @bs_idev: The input device for non-matrix buttons and switches (or NULL).
* @notifier: interrupt event notifier for transport devices
* @function_row_physmap: An array of the encoded rows/columns for the top
* row function keys, in an order from left to right
* @num_function_row_keys: The number of top row keys in a custom keyboard
*/
struct cros_ec_keyb {
unsigned int rows;
@@ -58,6 +63,9 @@ struct cros_ec_keyb {
struct input_dev *idev;
struct input_dev *bs_idev;
struct notifier_block notifier;
u16 function_row_physmap[MAX_NUM_TOP_ROW_KEYS];
size_t num_function_row_keys;
};
/**
@@ -527,6 +535,11 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
struct input_dev *idev;
const char *phys;
int err;
struct property *prop;
const __be32 *p;
u16 *physmap;
u32 key_pos;
int row, col;
err = matrix_keypad_parse_properties(dev, &ckdev->rows, &ckdev->cols);
if (err)
@@ -578,6 +591,21 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
ckdev->idev = idev;
cros_ec_keyb_compute_valid_keys(ckdev);
physmap = ckdev->function_row_physmap;
of_property_for_each_u32(dev->of_node, "function-row-physmap",
prop, p, key_pos) {
if (ckdev->num_function_row_keys == MAX_NUM_TOP_ROW_KEYS) {
dev_warn(dev, "Only support up to %d top row keys\n",
MAX_NUM_TOP_ROW_KEYS);
break;
}
row = KEY_ROW(key_pos);
col = KEY_COL(key_pos);
*physmap = MATRIX_SCAN_CODE(row, col, ckdev->row_shift);
physmap++;
ckdev->num_function_row_keys++;
}
err = input_register_device(ckdev->idev);
if (err) {
dev_err(dev, "cannot register input device\n");
@@ -587,6 +615,51 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
return 0;
}
static ssize_t function_row_physmap_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
ssize_t size = 0;
int i;
struct cros_ec_keyb *ckdev = dev_get_drvdata(dev);
u16 *physmap = ckdev->function_row_physmap;
for (i = 0; i < ckdev->num_function_row_keys; i++)
size += scnprintf(buf + size, PAGE_SIZE - size,
"%s%02X", size ? " " : "", physmap[i]);
if (size)
size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
return size;
}
static DEVICE_ATTR_RO(function_row_physmap);
static struct attribute *cros_ec_keyb_attrs[] = {
&dev_attr_function_row_physmap.attr,
NULL,
};
static umode_t cros_ec_keyb_attr_is_visible(struct kobject *kobj,
struct attribute *attr,
int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct cros_ec_keyb *ckdev = dev_get_drvdata(dev);
if (attr == &dev_attr_function_row_physmap.attr &&
!ckdev->num_function_row_keys)
return 0;
return attr->mode;
}
static const struct attribute_group cros_ec_keyb_attr_group = {
.is_visible = cros_ec_keyb_attr_is_visible,
.attrs = cros_ec_keyb_attrs,
};
static int cros_ec_keyb_probe(struct platform_device *pdev)
{
struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
@@ -617,6 +690,12 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
return err;
}
err = devm_device_add_group(dev, &cros_ec_keyb_attr_group);
if (err) {
dev_err(dev, "failed to create attributes. err=%d\n", err);
return err;
}
ckdev->notifier.notifier_call = cros_ec_keyb_work;
err = blocking_notifier_chain_register(&ckdev->ec->event_notifier,
&ckdev->notifier);

302
drivers/input/keyboard/omap4-keypad.c
View File

@@ -60,6 +60,8 @@
((((dbms) * 1000) / ((1 << ((ptv) + 1)) * (1000000 / 32768))) - 1)
#define OMAP4_VAL_DEBOUNCINGTIME_16MS \
OMAP4_KEYPAD_DEBOUNCINGTIME_MS(16, OMAP4_KEYPAD_PTV_DIV_128)
#define OMAP4_KEYPAD_AUTOIDLE_MS 50 /* Approximate measured time */
#define OMAP4_KEYPAD_IDLE_CHECK_MS (OMAP4_KEYPAD_AUTOIDLE_MS / 2)
enum {
KBD_REVISION_OMAP4 = 0,
@@ -71,6 +73,7 @@ struct omap4_keypad {
void __iomem *base;
unsigned int irq;
struct mutex lock; /* for key scan */
unsigned int rows;
unsigned int cols;
@@ -78,7 +81,7 @@ struct omap4_keypad {
u32 irqreg_offset;
unsigned int row_shift;
bool no_autorepeat;
unsigned char key_state[8];
u64 keys;
unsigned short *keymap;
};
@@ -107,6 +110,55 @@ static void kbd_write_irqreg(struct omap4_keypad *keypad_data,
keypad_data->base + keypad_data->irqreg_offset + offset);
}
static int omap4_keypad_report_keys(struct omap4_keypad *keypad_data,
u64 keys, bool down)
{
struct input_dev *input_dev = keypad_data->input;
unsigned int col, row, code;
DECLARE_BITMAP(mask, 64);
unsigned long bit;
int events = 0;
bitmap_from_u64(mask, keys);
for_each_set_bit(bit, mask, keypad_data->rows * BITS_PER_BYTE) {
row = bit / BITS_PER_BYTE;
col = bit % BITS_PER_BYTE;
code = MATRIX_SCAN_CODE(row, col, keypad_data->row_shift);
input_event(input_dev, EV_MSC, MSC_SCAN, code);
input_report_key(input_dev, keypad_data->keymap[code], down);
events++;
}
if (events)
input_sync(input_dev);
return events;
}
static void omap4_keypad_scan_keys(struct omap4_keypad *keypad_data, u64 keys)
{
u64 changed;
mutex_lock(&keypad_data->lock);
changed = keys ^ keypad_data->keys;
/*
* Report key up events separately and first. This matters in case we
* lost key-up interrupt and just now catching up.
*/
omap4_keypad_report_keys(keypad_data, changed & ~keys, false);
/* Report key down events */
omap4_keypad_report_keys(keypad_data, changed & keys, true);
keypad_data->keys = keys;
mutex_unlock(&keypad_data->lock);
}
/* Interrupt handlers */
static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
@@ -122,48 +174,44 @@ static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
{
struct omap4_keypad *keypad_data = dev_id;
struct input_dev *input_dev = keypad_data->input;
unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
unsigned int col, row, code, changed;
u32 *new_state = (u32 *) key_state;
struct device *dev = keypad_data->input->dev.parent;
u32 low, high;
int error;
u64 keys;
*new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
*(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
for (row = 0; row < keypad_data->rows; row++) {
changed = key_state[row] ^ keypad_data->key_state[row];
if (!changed)
continue;
for (col = 0; col < keypad_data->cols; col++) {
if (changed & (1 << col)) {
code = MATRIX_SCAN_CODE(row, col,
keypad_data->row_shift);
input_event(input_dev, EV_MSC, MSC_SCAN, code);
input_report_key(input_dev,
keypad_data->keymap[code],
key_state[row] & (1 << col));
}
}
error = pm_runtime_get_sync(dev);
if (error < 0) {
pm_runtime_put_noidle(dev);
return IRQ_NONE;
}
input_sync(input_dev);
low = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
high = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
keys = low | (u64)high << 32;
memcpy(keypad_data->key_state, key_state,
sizeof(keypad_data->key_state));
omap4_keypad_scan_keys(keypad_data, keys);
/* clear pending interrupts */
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return IRQ_HANDLED;
}
static int omap4_keypad_open(struct input_dev *input)
{
struct omap4_keypad *keypad_data = input_get_drvdata(input);
struct device *dev = input->dev.parent;
int error;
pm_runtime_get_sync(input->dev.parent);
error = pm_runtime_get_sync(dev);
if (error < 0) {
pm_runtime_put_noidle(dev);
return error;
}
disable_irq(keypad_data->irq);
@@ -176,13 +224,15 @@ static int omap4_keypad_open(struct input_dev *input)
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
OMAP4_DEF_IRQENABLE_EVENTEN |
OMAP4_DEF_IRQENABLE_LONGKEY);
OMAP4_DEF_IRQENABLE_EVENTEN);
kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,
OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA);
OMAP4_DEF_WUP_EVENT_ENA);
enable_irq(keypad_data->irq);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return 0;
}
@@ -200,14 +250,20 @@ static void omap4_keypad_stop(struct omap4_keypad *keypad_data)
static void omap4_keypad_close(struct input_dev *input)
{
struct omap4_keypad *keypad_data;
struct omap4_keypad *keypad_data = input_get_drvdata(input);
struct device *dev = input->dev.parent;
int error;
error = pm_runtime_get_sync(dev);
if (error < 0)
pm_runtime_put_noidle(dev);
keypad_data = input_get_drvdata(input);
disable_irq(keypad_data->irq);
omap4_keypad_stop(keypad_data);
enable_irq(keypad_data->irq);
pm_runtime_put_sync(input->dev.parent);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static int omap4_keypad_parse_dt(struct device *dev,
@@ -252,8 +308,41 @@ static int omap4_keypad_check_revision(struct device *dev,
return 0;
}
/*
* Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed".
* Interrupt may not happen for key-up events. We must clear stuck
* key-up events after the keyboard hardware has auto-idled.
*/
static int __maybe_unused omap4_keypad_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
u32 active;
active = kbd_readl(keypad_data, OMAP4_KBD_STATEMACHINE);
if (active) {
pm_runtime_mark_last_busy(dev);
return -EBUSY;
}
omap4_keypad_scan_keys(keypad_data, 0);
return 0;
}
static const struct dev_pm_ops omap4_keypad_pm_ops = {
SET_RUNTIME_PM_OPS(omap4_keypad_runtime_suspend, NULL, NULL)
};
static void omap4_disable_pm(void *d)
{
pm_runtime_dont_use_autosuspend(d);
pm_runtime_disable(d);
}
static int omap4_keypad_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct omap4_keypad *keypad_data;
struct input_dev *input_dev;
struct resource *res;
@@ -271,63 +360,62 @@ static int omap4_keypad_probe(struct platform_device *pdev)
if (irq < 0)
return irq;
keypad_data = kzalloc(sizeof(struct omap4_keypad), GFP_KERNEL);
keypad_data = devm_kzalloc(dev, sizeof(*keypad_data), GFP_KERNEL);
if (!keypad_data) {
dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
dev_err(dev, "keypad_data memory allocation failed\n");
return -ENOMEM;
}
keypad_data->irq = irq;
mutex_init(&keypad_data->lock);
platform_set_drvdata(pdev, keypad_data);
error = omap4_keypad_parse_dt(&pdev->dev, keypad_data);
error = omap4_keypad_parse_dt(dev, keypad_data);
if (error)
goto err_free_keypad;
return error;
res = request_mem_region(res->start, resource_size(res), pdev->name);
if (!res) {
dev_err(&pdev->dev, "can't request mem region\n");
error = -EBUSY;
goto err_free_keypad;
keypad_data->base = devm_ioremap_resource(dev, res);
if (IS_ERR(keypad_data->base))
return PTR_ERR(keypad_data->base);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, OMAP4_KEYPAD_IDLE_CHECK_MS);
pm_runtime_enable(dev);
error = devm_add_action_or_reset(dev, omap4_disable_pm, dev);
if (error) {
dev_err(dev, "unable to register cleanup action\n");
return error;
}
keypad_data->base = ioremap(res->start, resource_size(res));
if (!keypad_data->base) {
dev_err(&pdev->dev, "can't ioremap mem resource\n");
error = -ENOMEM;
goto err_release_mem;
}
pm_runtime_enable(&pdev->dev);
/*
* Enable clocks for the keypad module so that we can read
* revision register.
*/
error = pm_runtime_get_sync(&pdev->dev);
error = pm_runtime_get_sync(dev);
if (error) {
dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n");
pm_runtime_put_noidle(&pdev->dev);
} else {
error = omap4_keypad_check_revision(&pdev->dev,
keypad_data);
if (!error) {
/* Ensure device does not raise interrupts */
omap4_keypad_stop(keypad_data);
}
pm_runtime_put_sync(&pdev->dev);
dev_err(dev, "pm_runtime_get_sync() failed\n");
pm_runtime_put_noidle(dev);
return error;
}
error = omap4_keypad_check_revision(dev, keypad_data);
if (!error) {
/* Ensure device does not raise interrupts */
omap4_keypad_stop(keypad_data);
}
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
if (error)
goto err_pm_disable;
return error;
/* input device allocation */
keypad_data->input = input_dev = input_allocate_device();
if (!input_dev) {
error = -ENOMEM;
goto err_pm_disable;
}
keypad_data->input = input_dev = devm_input_allocate_device(dev);
if (!input_dev)
return -ENOMEM;
input_dev->name = pdev->name;
input_dev->dev.parent = &pdev->dev;
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
@@ -344,84 +432,51 @@ static int omap4_keypad_probe(struct platform_device *pdev)
keypad_data->row_shift = get_count_order(keypad_data->cols);
max_keys = keypad_data->rows << keypad_data->row_shift;
keypad_data->keymap = kcalloc(max_keys,
sizeof(keypad_data->keymap[0]),
GFP_KERNEL);
keypad_data->keymap = devm_kcalloc(dev,
max_keys,
sizeof(keypad_data->keymap[0]),
GFP_KERNEL);
if (!keypad_data->keymap) {
dev_err(&pdev->dev, "Not enough memory for keymap\n");
error = -ENOMEM;
goto err_free_input;
dev_err(dev, "Not enough memory for keymap\n");
return -ENOMEM;
}
error = matrix_keypad_build_keymap(NULL, NULL,
keypad_data->rows, keypad_data->cols,
keypad_data->keymap, input_dev);
if (error) {
dev_err(&pdev->dev, "failed to build keymap\n");
goto err_free_keymap;
dev_err(dev, "failed to build keymap\n");
return error;
}
error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,
omap4_keypad_irq_thread_fn, IRQF_ONESHOT,
"omap4-keypad", keypad_data);
error = devm_request_threaded_irq(dev, keypad_data->irq,
omap4_keypad_irq_handler,
omap4_keypad_irq_thread_fn,
IRQF_ONESHOT,
"omap4-keypad", keypad_data);
if (error) {
dev_err(&pdev->dev, "failed to register interrupt\n");
goto err_free_keymap;
dev_err(dev, "failed to register interrupt\n");
return error;
}
error = input_register_device(keypad_data->input);
if (error < 0) {
dev_err(&pdev->dev, "failed to register input device\n");
goto err_free_irq;
if (error) {
dev_err(dev, "failed to register input device\n");
return error;
}
device_init_wakeup(&pdev->dev, true);
error = dev_pm_set_wake_irq(&pdev->dev, keypad_data->irq);
device_init_wakeup(dev, true);
error = dev_pm_set_wake_irq(dev, keypad_data->irq);
if (error)
dev_warn(&pdev->dev,
"failed to set up wakeup irq: %d\n", error);
platform_set_drvdata(pdev, keypad_data);
dev_warn(dev, "failed to set up wakeup irq: %d\n", error);
return 0;
err_free_irq:
free_irq(keypad_data->irq, keypad_data);
err_free_keymap:
kfree(keypad_data->keymap);
err_free_input:
input_free_device(input_dev);
err_pm_disable:
pm_runtime_disable(&pdev->dev);
iounmap(keypad_data->base);
err_release_mem:
release_mem_region(res->start, resource_size(res));
err_free_keypad:
kfree(keypad_data);
return error;
}
static int omap4_keypad_remove(struct platform_device *pdev)
{
struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
struct resource *res;
dev_pm_clear_wake_irq(&pdev->dev);
free_irq(keypad_data->irq, keypad_data);
pm_runtime_disable(&pdev->dev);
input_unregister_device(keypad_data->input);
iounmap(keypad_data->base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
kfree(keypad_data->keymap);
kfree(keypad_data);
return 0;
}
@@ -437,6 +492,7 @@ static struct platform_driver omap4_keypad_driver = {
.driver = {
.name = "omap4-keypad",
.of_match_table = omap_keypad_dt_match,
.pm = &omap4_keypad_pm_ops,
},
};
module_platform_driver(omap4_keypad_driver);

3
drivers/input/misc/da7280.c
View File

@@ -863,6 +863,7 @@ static void da7280_parse_properties(struct device *dev,
gpi_str3[7] = '0' + i;
haptics->gpi_ctl[i].polarity = 0;
error = device_property_read_string(dev, gpi_str3, &str);
if (!error)
haptics->gpi_ctl[i].polarity =
da7280_haptic_of_gpi_pol_str(dev, str);
}
@@ -1299,11 +1300,13 @@ static int __maybe_unused da7280_resume(struct device *dev)
return retval;
}
#ifdef CONFIG_OF
static const struct of_device_id da7280_of_match[] = {
{ .compatible = "dlg,da7280", },
{ }
};
MODULE_DEVICE_TABLE(of, da7280_of_match);
#endif
static const struct i2c_device_id da7280_i2c_id[] = {
{ "da7280", },

2
drivers/input/mouse/alps.c
View File

@@ -986,7 +986,7 @@ static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt,
case V7_PACKET_ID_TWO:
mt[1].x &= ~0x000F;
mt[1].y |= 0x000F;
/* Detect false-postive touches where x & y report max value */
/* Detect false-positive touches where x & y report max value */
if (mt[1].y == 0x7ff && mt[1].x == 0xff0) {
mt[1].x = 0;
/* y gets set to 0 at the end of this function */

7
drivers/input/mouse/synaptics.c
View File

@@ -1106,8 +1106,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
num_fingers = hw.w + 2;
break;
case 2:
if (SYN_MODEL_PEN(info->model_id))
; /* Nothing, treat a pen as a single finger */
/*
* SYN_MODEL_PEN(info->model_id): even if
* the device supports pen, we treat it as
* a single finger.
*/
break;
case 4 ... 15:
if (SYN_CAP_PALMDETECT(info->capabilities))

2
drivers/input/serio/Kconfig
View File

@@ -255,7 +255,7 @@ config SERIO_ARC_PS2
config SERIO_APBPS2
tristate "GRLIB APBPS2 PS/2 keyboard/mouse controller"
depends on OF
depends on OF && HAS_IOMEM
help
Say Y here if you want support for GRLIB APBPS2 peripherals used
to connect to PS/2 keyboard and/or mouse.

4
drivers/input/serio/i8042-x86ia64io.h
View File

@@ -588,6 +588,10 @@ static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
},
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible Notebook */
},
},
{ }
};

80
drivers/input/tablet/aiptek.c
View File

@@ -1036,9 +1036,9 @@ static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%dx%d\n",
input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
return sysfs_emit(buf, "%dx%d\n",
input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
}
/* These structs define the sysfs files, param #1 is the name of the
@@ -1064,9 +1064,8 @@ static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribut
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(pointer_mode_map,
aiptek->curSetting.pointerMode));
return sysfs_emit(buf, "%s\n", map_val_to_str(pointer_mode_map,
aiptek->curSetting.pointerMode));
}
static ssize_t
@@ -1101,9 +1100,8 @@ static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attri
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(coordinate_mode_map,
aiptek->curSetting.coordinateMode));
return sysfs_emit(buf, "%s\n", map_val_to_str(coordinate_mode_map,
aiptek->curSetting.coordinateMode));
}
static ssize_t
@@ -1143,9 +1141,8 @@ static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(tool_mode_map,
aiptek->curSetting.toolMode));
return sysfs_emit(buf, "%s\n", map_val_to_str(tool_mode_map,
aiptek->curSetting.toolMode));
}
static ssize_t
@@ -1174,10 +1171,9 @@ static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *att
struct aiptek *aiptek = dev_get_drvdata(dev);
if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
return snprintf(buf, PAGE_SIZE, "disable\n");
return sysfs_emit(buf, "disable\n");
} else {
return snprintf(buf, PAGE_SIZE, "%d\n",
aiptek->curSetting.xTilt);
return sysfs_emit(buf, "%d\n", aiptek->curSetting.xTilt);
}
}
@@ -1216,10 +1212,9 @@ static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *att
struct aiptek *aiptek = dev_get_drvdata(dev);
if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
return snprintf(buf, PAGE_SIZE, "disable\n");
return sysfs_emit(buf, "disable\n");
} else {
return snprintf(buf, PAGE_SIZE, "%d\n",
aiptek->curSetting.yTilt);
return sysfs_emit(buf, "%d\n", aiptek->curSetting.yTilt);
}
}
@@ -1257,7 +1252,7 @@ static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribut
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
return sysfs_emit(buf, "%d\n", aiptek->curSetting.jitterDelay);
}
static ssize_t
@@ -1286,8 +1281,7 @@ static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_at
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d\n",
aiptek->curSetting.programmableDelay);
return sysfs_emit(buf, "%d\n", aiptek->curSetting.programmableDelay);
}
static ssize_t
@@ -1316,7 +1310,7 @@ static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attri
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
return sysfs_emit(buf, "%ld\n", aiptek->eventCount);
}
static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
@@ -1355,7 +1349,7 @@ static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_at
default:
return 0;
}
return snprintf(buf, PAGE_SIZE, retMsg);
return sysfs_emit(buf, retMsg);
}
static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
@@ -1375,9 +1369,8 @@ static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribut
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonUpper));
return sysfs_emit(buf, "%s\n", map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonUpper));
}
static ssize_t
@@ -1406,9 +1399,8 @@ static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribut
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonLower));
return sysfs_emit(buf, "%s\n", map_val_to_str(stylus_button_map,
aiptek->curSetting.stylusButtonLower));
}
static ssize_t
@@ -1444,9 +1436,8 @@ static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonLeft));
return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonLeft));
}
static ssize_t
@@ -1474,9 +1465,8 @@ static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribut
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonMiddle));
return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonMiddle));
}
static ssize_t
@@ -1504,9 +1494,8 @@ static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonRight));
return sysfs_emit(buf, "%s\n", map_val_to_str(mouse_button_map,
aiptek->curSetting.mouseButtonRight));
}
static ssize_t
@@ -1535,10 +1524,9 @@ static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *att
struct aiptek *aiptek = dev_get_drvdata(dev);
if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
return snprintf(buf, PAGE_SIZE, "disable\n");
return sysfs_emit(buf, "disable\n");
} else {
return snprintf(buf, PAGE_SIZE, "%d\n",
aiptek->curSetting.wheel);
return sysfs_emit(buf, "%d\n", aiptek->curSetting.wheel);
}
}
@@ -1568,8 +1556,7 @@ static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *a
/* There is nothing useful to display, so a one-line manual
* is in order...
*/
return snprintf(buf, PAGE_SIZE,
"Write anything to this file to program your tablet.\n");
return sysfs_emit(buf, "Write anything to this file to program your tablet.\n");
}
static ssize_t
@@ -1600,7 +1587,7 @@ static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *a
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
return sysfs_emit(buf, "0x%04x\n", aiptek->features.odmCode);
}
static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
@@ -1613,7 +1600,7 @@ static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
return sysfs_emit(buf, "0x%04x\n", aiptek->features.modelCode);
}
static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
@@ -1626,8 +1613,7 @@ static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *at
{
struct aiptek *aiptek = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%04x\n",
aiptek->features.firmwareCode);
return sysfs_emit(buf, "%04x\n", aiptek->features.firmwareCode);
}
static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);

2
drivers/input/touchscreen/Kconfig
View File

@@ -608,7 +608,7 @@ config TOUCHSCREEN_MTOUCH
config TOUCHSCREEN_IMX6UL_TSC
tristate "Freescale i.MX6UL touchscreen controller"
depends on (OF && GPIOLIB) || COMPILE_TEST
depends on ((OF && GPIOLIB) || COMPILE_TEST) && HAS_IOMEM
help
Say Y here if you have a Freescale i.MX6UL, and want to
use the internal touchscreen controller.

376
drivers/input/touchscreen/ads7846.c
View File

@@ -64,24 +64,13 @@
struct ads7846_buf {
u8 cmd;
/*
* This union is a temporary hack. The driver does an in-place
* endianness conversion. This will be cleaned up in the next
* patch.
*/
union {
__be16 data_be16;
u16 data;
};
__be16 data;
} __packed;
struct ts_event {
bool ignore;
struct ads7846_buf x;
struct ads7846_buf y;
struct ads7846_buf z1;
struct ads7846_buf z2;
struct ads7846_buf_layout {
unsigned int offset;
unsigned int count;
unsigned int skip;
};
/*
@@ -90,12 +79,18 @@ struct ts_event {
* systems where main memory is not DMA-coherent (most non-x86 boards).
*/
struct ads7846_packet {
struct ts_event tc;
struct ads7846_buf read_x_cmd;
struct ads7846_buf read_y_cmd;
struct ads7846_buf read_z1_cmd;
struct ads7846_buf read_z2_cmd;
unsigned int count;
unsigned int count_skip;
unsigned int cmds;
unsigned int last_cmd_idx;
struct ads7846_buf_layout l[5];
struct ads7846_buf *rx;
struct ads7846_buf *tx;
struct ads7846_buf pwrdown_cmd;
bool ignore;
u16 x, y, z1, z2;
};
struct ads7846 {
@@ -194,7 +189,6 @@ struct ads7846 {
#define READ_Y(vref) (READ_12BIT_DFR(y, 1, vref))
#define READ_Z1(vref) (READ_12BIT_DFR(z1, 1, vref))
#define READ_Z2(vref) (READ_12BIT_DFR(z2, 1, vref))
#define READ_X(vref) (READ_12BIT_DFR(x, 1, vref))
#define PWRDOWN (READ_12BIT_DFR(y, 0, 0)) /* LAST */
@@ -207,6 +201,21 @@ struct ads7846 {
#define REF_ON (READ_12BIT_DFR(x, 1, 1))
#define REF_OFF (READ_12BIT_DFR(y, 0, 0))
/* Order commands in the most optimal way to reduce Vref switching and
* settling time:
* Measure: X; Vref: X+, X-; IN: Y+
* Measure: Y; Vref: Y+, Y-; IN: X+
* Measure: Z1; Vref: Y+, X-; IN: X+
* Measure: Z2; Vref: Y+, X-; IN: Y-
*/
enum ads7846_cmds {
ADS7846_X,
ADS7846_Y,
ADS7846_Z1,
ADS7846_Z2,
ADS7846_PWDOWN,
};
static int get_pendown_state(struct ads7846 *ts)
{
if (ts->get_pendown_state)
@@ -689,26 +698,109 @@ static int ads7846_no_filter(void *ads, int data_idx, int *val)
return ADS7846_FILTER_OK;
}
static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m)
static int ads7846_get_value(struct ads7846_buf *buf)
{
int value;
struct spi_transfer *t =
list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
struct ads7846_buf *buf = t->rx_buf;
value = be16_to_cpup(&buf->data_be16);
value = be16_to_cpup(&buf->data);
/* enforce ADC output is 12 bits width */
return (value >> 3) & 0xfff;
}
static void ads7846_update_value(struct spi_message *m, int val)
static void ads7846_set_cmd_val(struct ads7846 *ts, enum ads7846_cmds cmd_idx,
u16 val)
{
struct spi_transfer *t =
list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
struct ads7846_buf *buf = t->rx_buf;
struct ads7846_packet *packet = ts->packet;
buf->data = val;
switch (cmd_idx) {
case ADS7846_Y:
packet->y = val;
break;
case ADS7846_X:
packet->x = val;
break;
case ADS7846_Z1:
packet->z1 = val;
break;
case ADS7846_Z2:
packet->z2 = val;
break;
default:
WARN_ON_ONCE(1);
}
}
static u8 ads7846_get_cmd(enum ads7846_cmds cmd_idx, int vref)
{
switch (cmd_idx) {
case ADS7846_Y:
return READ_Y(vref);
case ADS7846_X:
return READ_X(vref);
/* 7846 specific commands */
case ADS7846_Z1:
return READ_Z1(vref);
case ADS7846_Z2:
return READ_Z2(vref);
case ADS7846_PWDOWN:
return PWRDOWN;
default:
WARN_ON_ONCE(1);
}
return 0;
}
static bool ads7846_cmd_need_settle(enum ads7846_cmds cmd_idx)
{
switch (cmd_idx) {
case ADS7846_X:
case ADS7846_Y:
case ADS7846_Z1:
case ADS7846_Z2:
return true;
case ADS7846_PWDOWN:
return false;
default:
WARN_ON_ONCE(1);
}
return false;
}
static int ads7846_filter(struct ads7846 *ts)
{
struct ads7846_packet *packet = ts->packet;
int action;
int val;
unsigned int cmd_idx, b;
packet->ignore = false;
for (cmd_idx = packet->last_cmd_idx; cmd_idx < packet->cmds - 1; cmd_idx++) {
struct ads7846_buf_layout *l = &packet->l[cmd_idx];
packet->last_cmd_idx = cmd_idx;
for (b = l->skip; b < l->count; b++) {
val = ads7846_get_value(&packet->rx[l->offset + b]);
action = ts->filter(ts->filter_data, cmd_idx, &val);
if (action == ADS7846_FILTER_REPEAT) {
if (b == l->count - 1)
return -EAGAIN;
} else if (action == ADS7846_FILTER_OK) {
ads7846_set_cmd_val(ts, cmd_idx, val);
break;
} else {
packet->ignore = true;
return 0;
}
}
}
return 0;
}
static void ads7846_read_state(struct ads7846 *ts)
@@ -716,52 +808,26 @@ static void ads7846_read_state(struct ads7846 *ts)
struct ads7846_packet *packet = ts->packet;
struct spi_message *m;
int msg_idx = 0;
int val;
int action;
int error;
while (msg_idx < ts->msg_count) {
packet->last_cmd_idx = 0;
while (true) {
ts->wait_for_sync();
m = &ts->msg[msg_idx];
error = spi_sync(ts->spi, m);
if (error) {
dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
packet->tc.ignore = true;
packet->ignore = true;
return;
}
/*
* Last message is power down request, no need to convert
* or filter the value.
*/
if (msg_idx < ts->msg_count - 1) {
error = ads7846_filter(ts);
if (error)
continue;
val = ads7846_get_value(ts, m);
action = ts->filter(ts->filter_data, msg_idx, &val);
switch (action) {
case ADS7846_FILTER_REPEAT:
continue;
case ADS7846_FILTER_IGNORE:
packet->tc.ignore = true;
msg_idx = ts->msg_count - 1;
continue;
case ADS7846_FILTER_OK:
ads7846_update_value(m, val);
packet->tc.ignore = false;
msg_idx++;
break;
default:
BUG();
}
} else {
msg_idx++;
}
return;
}
}
@@ -771,19 +837,14 @@ static void ads7846_report_state(struct ads7846 *ts)
unsigned int Rt;
u16 x, y, z1, z2;
/*
* ads7846_get_value() does in-place conversion (including byte swap)
* from on-the-wire format as part of debouncing to get stable
* readings.
*/
x = packet->tc.x.data;
y = packet->tc.y.data;
x = packet->x;
y = packet->y;
if (ts->model == 7845) {
z1 = 0;
z2 = 0;
} else {
z1 = packet->tc.z1.data;
z2 = packet->tc.z2.data;
z1 = packet->z1;
z2 = packet->z2;
}
/* range filtering */
@@ -816,9 +877,9 @@ static void ads7846_report_state(struct ads7846 *ts)
* the maximum. Don't report it to user space, repeat at least
* once more the measurement
*/
if (packet->tc.ignore || Rt > ts->pressure_max) {
if (packet->ignore || Rt > ts->pressure_max) {
dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n",
packet->tc.ignore, Rt);
packet->ignore, Rt);
return;
}
@@ -979,13 +1040,59 @@ static int ads7846_setup_pendown(struct spi_device *spi,
* Set up the transfers to read touchscreen state; this assumes we
* use formula #2 for pressure, not #3.
*/
static void ads7846_setup_spi_msg(struct ads7846 *ts,
static int ads7846_setup_spi_msg(struct ads7846 *ts,
const struct ads7846_platform_data *pdata)
{
struct spi_message *m = &ts->msg[0];
struct spi_transfer *x = ts->xfer;
struct ads7846_packet *packet = ts->packet;
int vref = pdata->keep_vref_on;
unsigned int count, offset = 0;
unsigned int cmd_idx, b;
unsigned long time;
size_t size = 0;
/* time per bit */
time = NSEC_PER_SEC / ts->spi->max_speed_hz;
count = pdata->settle_delay_usecs * NSEC_PER_USEC / time;
packet->count_skip = DIV_ROUND_UP(count, 24);
if (ts->debounce_max && ts->debounce_rep)
/* ads7846_debounce_filter() is making ts->debounce_rep + 2
* reads. So we need to get all samples for normal case. */
packet->count = ts->debounce_rep + 2;
else
packet->count = 1;
if (ts->model == 7846)
packet->cmds = 5; /* x, y, z1, z2, pwdown */
else
packet->cmds = 3; /* x, y, pwdown */
for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) {
struct ads7846_buf_layout *l = &packet->l[cmd_idx];
unsigned int max_count;
if (ads7846_cmd_need_settle(cmd_idx))
max_count = packet->count + packet->count_skip;
else
max_count = packet->count;
l->offset = offset;
offset += max_count;
l->count = max_count;
l->skip = packet->count_skip;
size += sizeof(*packet->tx) * max_count;
}
packet->tx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL);
if (!packet->tx)
return -ENOMEM;
packet->rx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL);
if (!packet->rx)
return -ENOMEM;
if (ts->model == 7873) {
/*
@@ -1001,117 +1108,20 @@ static void ads7846_setup_spi_msg(struct ads7846 *ts,
spi_message_init(m);
m->context = ts;
packet->read_y_cmd.cmd = READ_Y(vref);
x->tx_buf = &packet->read_y_cmd;
x->rx_buf = &packet->tc.y;
x->len = 3;
spi_message_add_tail(x, m);
for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) {
struct ads7846_buf_layout *l = &packet->l[cmd_idx];
u8 cmd = ads7846_get_cmd(cmd_idx, vref);
/*
* The first sample after switching drivers can be low quality;
* optionally discard it, using a second one after the signals
* have had enough time to stabilize.
*/
if (pdata->settle_delay_usecs) {
x->delay.value = pdata->settle_delay_usecs;
x->delay.unit = SPI_DELAY_UNIT_USECS;
x++;
x->tx_buf = &packet->read_y_cmd;
x->rx_buf = &packet->tc.y;
x->len = 3;
spi_message_add_tail(x, m);
for (b = 0; b < l->count; b++)
packet->tx[l->offset + b].cmd = cmd;
}
ts->msg_count++;
m++;
spi_message_init(m);
m->context = ts;
/* turn y- off, x+ on, then leave in lowpower */
x++;
packet->read_x_cmd.cmd = READ_X(vref);
x->tx_buf = &packet->read_x_cmd;
x->rx_buf = &packet->tc.x;
x->len = 3;
x->tx_buf = packet->tx;
x->rx_buf = packet->rx;
x->len = size;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay.value = pdata->settle_delay_usecs;
x->delay.unit = SPI_DELAY_UNIT_USECS;
x++;
x->tx_buf = &packet->read_x_cmd;
x->rx_buf = &packet->tc.x;
x->len = 3;
spi_message_add_tail(x, m);
}
/* turn y+ off, x- on; we'll use formula #2 */
if (ts->model == 7846) {
ts->msg_count++;
m++;
spi_message_init(m);
m->context = ts;
x++;
packet->read_z1_cmd.cmd = READ_Z1(vref);
x->tx_buf = &packet->read_z1_cmd;
x->rx_buf = &packet->tc.z1;
x->len = 3;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay.value = pdata->settle_delay_usecs;
x->delay.unit = SPI_DELAY_UNIT_USECS;
x++;
x->tx_buf = &packet->read_z1_cmd;
x->rx_buf = &packet->tc.z1;
x->len = 3;
spi_message_add_tail(x, m);
}
ts->msg_count++;
m++;
spi_message_init(m);
m->context = ts;
x++;
packet->read_z2_cmd.cmd = READ_Z2(vref);
x->tx_buf = &packet->read_z2_cmd;
x->rx_buf = &packet->tc.z2;
x->len = 3;
spi_message_add_tail(x, m);
/* ... maybe discard first sample ... */
if (pdata->settle_delay_usecs) {
x->delay.value = pdata->settle_delay_usecs;
x->delay.unit = SPI_DELAY_UNIT_USECS;
x++;
x->tx_buf = &packet->read_z2_cmd;
x->rx_buf = &packet->tc.z2;
x->len = 3;
spi_message_add_tail(x, m);
}
}
/* power down */
ts->msg_count++;
m++;
spi_message_init(m);
m->context = ts;
x++;
packet->pwrdown_cmd.cmd = PWRDOWN;
x->tx_buf = &packet->pwrdown_cmd;
x->len = 3;
CS_CHANGE(*x);
spi_message_add_tail(x, m);
return 0;
}
#ifdef CONFIG_OF

151
drivers/input/touchscreen/elants_i2c.c
View File

@@ -56,6 +56,7 @@
#define QUEUE_HEADER_SINGLE 0x62
#define QUEUE_HEADER_NORMAL 0X63
#define QUEUE_HEADER_WAIT 0x64
#define QUEUE_HEADER_NORMAL2 0x66
/* Command header definition */
#define CMD_HEADER_WRITE 0x54
@@ -69,6 +70,7 @@
#define CMD_HEADER_REK 0x66
/* FW position data */
#define PACKET_SIZE_OLD 40
#define PACKET_SIZE 55
#define MAX_CONTACT_NUM 10
#define FW_POS_HEADER 0
@@ -90,6 +92,8 @@
/* FW read command, 0x53 0x?? 0x0, 0x01 */
#define E_ELAN_INFO_FW_VER 0x00
#define E_ELAN_INFO_BC_VER 0x10
#define E_ELAN_INFO_X_RES 0x60
#define E_ELAN_INFO_Y_RES 0x63
#define E_ELAN_INFO_REK 0xD0
#define E_ELAN_INFO_TEST_VER 0xE0
#define E_ELAN_INFO_FW_ID 0xF0
@@ -112,6 +116,11 @@
#define ELAN_POWERON_DELAY_USEC 500
#define ELAN_RESET_DELAY_MSEC 20
enum elants_chip_id {
EKTH3500,
EKTF3624,
};
enum elants_state {
ELAN_STATE_NORMAL,
ELAN_WAIT_QUEUE_HEADER,
@@ -143,9 +152,12 @@ struct elants_data {
unsigned int y_res;
unsigned int x_max;
unsigned int y_max;
unsigned int phy_x;
unsigned int phy_y;
struct touchscreen_properties prop;
enum elants_state state;
enum elants_chip_id chip_id;
enum elants_iap_mode iap_mode;
/* Guards against concurrent access to the device via sysfs */
@@ -433,7 +445,51 @@ static int elants_i2c_query_bc_version(struct elants_data *ts)
return 0;
}
static int elants_i2c_query_ts_info(struct elants_data *ts)
static int elants_i2c_query_ts_info_ektf(struct elants_data *ts)
{
struct i2c_client *client = ts->client;
int error;
u8 resp[4];
u16 phy_x, phy_y;
const u8 get_xres_cmd[] = {
CMD_HEADER_READ, E_ELAN_INFO_X_RES, 0x00, 0x00
};
const u8 get_yres_cmd[] = {
CMD_HEADER_READ, E_ELAN_INFO_Y_RES, 0x00, 0x00
};
/* Get X/Y size in mm */
error = elants_i2c_execute_command(client, get_xres_cmd,
sizeof(get_xres_cmd),
resp, sizeof(resp), 1,
"get X size");
if (error)
return error;
phy_x = resp[2] | ((resp[3] & 0xF0) << 4);
error = elants_i2c_execute_command(client, get_yres_cmd,
sizeof(get_yres_cmd),
resp, sizeof(resp), 1,
"get Y size");
if (error)
return error;
phy_y = resp[2] | ((resp[3] & 0xF0) << 4);
dev_dbg(&client->dev, "phy_x=%d, phy_y=%d\n", phy_x, phy_y);
ts->phy_x = phy_x;
ts->phy_y = phy_y;
/* eKTF doesn't report max size, set it to default values */
ts->x_max = 2240 - 1;
ts->y_max = 1408 - 1;
return 0;
}
static int elants_i2c_query_ts_info_ekth(struct elants_data *ts)
{
struct i2c_client *client = ts->client;
int error;
@@ -508,6 +564,8 @@ static int elants_i2c_query_ts_info(struct elants_data *ts)
ts->x_res = DIV_ROUND_CLOSEST(ts->x_max, phy_x);
ts->y_max = ELAN_TS_RESOLUTION(cols, osr);
ts->y_res = DIV_ROUND_CLOSEST(ts->y_max, phy_y);
ts->phy_x = phy_x;
ts->phy_y = phy_y;
}
return 0;
@@ -587,8 +645,19 @@ static int elants_i2c_initialize(struct elants_data *ts)
error = elants_i2c_query_fw_version(ts);
if (!error)
error = elants_i2c_query_test_version(ts);
if (!error)
error = elants_i2c_query_ts_info(ts);
switch (ts->chip_id) {
case EKTH3500:
if (!error)
error = elants_i2c_query_ts_info_ekth(ts);
break;
case EKTF3624:
if (!error)
error = elants_i2c_query_ts_info_ektf(ts);
break;
default:
BUG();
}
if (error)
ts->iap_mode = ELAN_IAP_RECOVERY;
@@ -853,7 +922,8 @@ out:
* Event reporting.
*/
static void elants_i2c_mt_event(struct elants_data *ts, u8 *buf)
static void elants_i2c_mt_event(struct elants_data *ts, u8 *buf,
size_t packet_size)
{
struct input_dev *input = ts->input;
unsigned int n_fingers;
@@ -880,8 +950,24 @@ static void elants_i2c_mt_event(struct elants_data *ts, u8 *buf)
pos = &buf[FW_POS_XY + i * 3];
x = (((u16)pos[0] & 0xf0) << 4) | pos[1];
y = (((u16)pos[0] & 0x0f) << 8) | pos[2];
p = buf[FW_POS_PRESSURE + i];
w = buf[FW_POS_WIDTH + i];
/*
* eKTF3624 may have use "old" touch-report format,
* depending on a device and TS firmware version.
* For example, ASUS Transformer devices use the "old"
* format, while ASUS Nexus 7 uses the "new" formant.
*/
if (packet_size == PACKET_SIZE_OLD &&
ts->chip_id == EKTF3624) {
w = buf[FW_POS_WIDTH + i / 2];
w >>= 4 * (~i & 1);
w |= w << 4;
w |= !w;
p = w;
} else {
p = buf[FW_POS_PRESSURE + i];
w = buf[FW_POS_WIDTH + i];
}
dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",
i, x, y, p, w);
@@ -913,7 +999,8 @@ static u8 elants_i2c_calculate_checksum(u8 *buf)
return checksum;
}
static void elants_i2c_event(struct elants_data *ts, u8 *buf)
static void elants_i2c_event(struct elants_data *ts, u8 *buf,
size_t packet_size)
{
u8 checksum = elants_i2c_calculate_checksum(buf);
@@ -927,7 +1014,7 @@ static void elants_i2c_event(struct elants_data *ts, u8 *buf)
"%s: unknown packet type: %02x\n",
__func__, buf[FW_POS_HEADER]);
else
elants_i2c_mt_event(ts, buf);
elants_i2c_mt_event(ts, buf, packet_size);
}
static irqreturn_t elants_i2c_irq(int irq, void *_dev)
@@ -970,7 +1057,6 @@ static irqreturn_t elants_i2c_irq(int irq, void *_dev)
switch (ts->buf[FW_HDR_TYPE]) {
case CMD_HEADER_HELLO:
case CMD_HEADER_RESP:
case CMD_HEADER_REK:
break;
case QUEUE_HEADER_WAIT:
@@ -985,9 +1071,24 @@ static irqreturn_t elants_i2c_irq(int irq, void *_dev)
break;
case QUEUE_HEADER_SINGLE:
elants_i2c_event(ts, &ts->buf[HEADER_SIZE]);
elants_i2c_event(ts, &ts->buf[HEADER_SIZE],
ts->buf[FW_HDR_LENGTH]);
break;
case QUEUE_HEADER_NORMAL2: /* CMD_HEADER_REK */
/*
* Depending on firmware version, eKTF3624 touchscreens
* may utilize one of these opcodes for the touch events:
* 0x63 (NORMAL) and 0x66 (NORMAL2). The 0x63 is used by
* older firmware version and differs from 0x66 such that
* touch pressure value needs to be adjusted. The 0x66
* opcode of newer firmware is equal to 0x63 of eKTH3500.
*/
if (ts->chip_id != EKTF3624)
break;
fallthrough;
case QUEUE_HEADER_NORMAL:
report_count = ts->buf[FW_HDR_COUNT];
if (report_count == 0 || report_count > 3) {
@@ -998,7 +1099,12 @@ static irqreturn_t elants_i2c_irq(int irq, void *_dev)
}
report_len = ts->buf[FW_HDR_LENGTH] / report_count;
if (report_len != PACKET_SIZE) {
if (report_len == PACKET_SIZE_OLD &&
ts->chip_id == EKTF3624) {
dev_dbg_once(&client->dev,
"using old report format\n");
} else if (report_len != PACKET_SIZE) {
dev_err(&client->dev,
"mismatching report length: %*ph\n",
HEADER_SIZE, ts->buf);
@@ -1007,8 +1113,8 @@ static irqreturn_t elants_i2c_irq(int irq, void *_dev)
for (i = 0; i < report_count; i++) {
u8 *buf = ts->buf + HEADER_SIZE +
i * PACKET_SIZE;
elants_i2c_event(ts, buf);
i * report_len;
elants_i2c_event(ts, buf, report_len);
}
break;
@@ -1250,6 +1356,7 @@ static int elants_i2c_probe(struct i2c_client *client,
init_completion(&ts->cmd_done);
ts->client = client;
ts->chip_id = (enum elants_chip_id)id->driver_data;
i2c_set_clientdata(client, ts);
ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");
@@ -1331,13 +1438,20 @@ static int elants_i2c_probe(struct i2c_client *client,
input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, 255, 0, 0);
input_set_abs_params(ts->input, ABS_MT_TOOL_TYPE,
0, MT_TOOL_PALM, 0, 0);
touchscreen_parse_properties(ts->input, true, &ts->prop);
if (ts->chip_id == EKTF3624) {
/* calculate resolution from size */
ts->x_res = DIV_ROUND_CLOSEST(ts->prop.max_x, ts->phy_x);
ts->y_res = DIV_ROUND_CLOSEST(ts->prop.max_y, ts->phy_y);
}
input_abs_set_res(ts->input, ABS_MT_POSITION_X, ts->x_res);
input_abs_set_res(ts->input, ABS_MT_POSITION_Y, ts->y_res);
if (ts->major_res > 0)
input_abs_set_res(ts->input, ABS_MT_TOUCH_MAJOR, ts->major_res);
touchscreen_parse_properties(ts->input, true, &ts->prop);
error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,
INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
if (error) {
@@ -1466,14 +1580,16 @@ static SIMPLE_DEV_PM_OPS(elants_i2c_pm_ops,
elants_i2c_suspend, elants_i2c_resume);
static const struct i2c_device_id elants_i2c_id[] = {
{ DEVICE_NAME, 0 },
{ DEVICE_NAME, EKTH3500 },
{ "ekth3500", EKTH3500 },
{ "ektf3624", EKTF3624 },
{ }
};
MODULE_DEVICE_TABLE(i2c, elants_i2c_id);
#ifdef CONFIG_ACPI
static const struct acpi_device_id elants_acpi_id[] = {
{ "ELAN0001", 0 },
{ "ELAN0001", EKTH3500 },
{ }
};
MODULE_DEVICE_TABLE(acpi, elants_acpi_id);
@@ -1482,6 +1598,7 @@ MODULE_DEVICE_TABLE(acpi, elants_acpi_id);
#ifdef CONFIG_OF
static const struct of_device_id elants_of_match[] = {
{ .compatible = "elan,ekth3500" },
{ .compatible = "elan,ektf3624" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, elants_of_match);

4
drivers/input/touchscreen/elo.c
View File

@@ -341,8 +341,10 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
switch (elo->id) {
case 0: /* 10-byte protocol */
if (elo_setup_10(elo))
if (elo_setup_10(elo)) {
err = -EIO;
goto fail3;
}
break;

213
drivers/input/touchscreen/iqs5xx.c
View File

@@ -2,8 +2,7 @@
/*
* Azoteq IQS550/572/525 Trackpad/Touchscreen Controller
*
* Copyright (C) 2018
* Author: Jeff LaBundy <jeff@labundy.com>
* Copyright (C) 2018 Jeff LaBundy <jeff@labundy.com>
*
* These devices require firmware exported from a PC-based configuration tool
* made available by the vendor. Firmware files may be pushed to the device's
@@ -12,6 +11,7 @@
* Link to PC-based configuration tool and data sheet: http://www.azoteq.com/
*/
#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -30,9 +30,9 @@
#define IQS5XX_FW_FILE_LEN 64
#define IQS5XX_NUM_RETRIES 10
#define IQS5XX_NUM_POINTS 256
#define IQS5XX_NUM_CONTACTS 5
#define IQS5XX_WR_BYTES_MAX 2
#define IQS5XX_XY_RES_MAX 0xFFFE
#define IQS5XX_PROD_NUM_IQS550 40
#define IQS5XX_PROD_NUM_IQS572 58
@@ -41,28 +41,27 @@
#define IQS5XX_PROJ_NUM_B000 15
#define IQS5XX_MAJOR_VER_MIN 2
#define IQS5XX_RESUME 0x00
#define IQS5XX_SUSPEND 0x01
#define IQS5XX_SHOW_RESET BIT(7)
#define IQS5XX_ACK_RESET BIT(7)
#define IQS5XX_SW_INPUT_EVENT 0x10
#define IQS5XX_SETUP_COMPLETE 0x40
#define IQS5XX_EVENT_MODE 0x01
#define IQS5XX_TP_EVENT 0x04
#define IQS5XX_SUSPEND BIT(0)
#define IQS5XX_RESUME 0
#define IQS5XX_FLIP_X 0x01
#define IQS5XX_FLIP_Y 0x02
#define IQS5XX_SWITCH_XY_AXIS 0x04
#define IQS5XX_SETUP_COMPLETE BIT(6)
#define IQS5XX_WDT BIT(5)
#define IQS5XX_ALP_REATI BIT(3)
#define IQS5XX_REATI BIT(2)
#define IQS5XX_TP_EVENT BIT(2)
#define IQS5XX_EVENT_MODE BIT(0)
#define IQS5XX_PROD_NUM 0x0000
#define IQS5XX_ABS_X 0x0016
#define IQS5XX_ABS_Y 0x0018
#define IQS5XX_SYS_INFO0 0x000F
#define IQS5XX_SYS_INFO1 0x0010
#define IQS5XX_SYS_CTRL0 0x0431
#define IQS5XX_SYS_CTRL1 0x0432
#define IQS5XX_SYS_CFG0 0x058E
#define IQS5XX_SYS_CFG1 0x058F
#define IQS5XX_TOTAL_RX 0x063D
#define IQS5XX_TOTAL_TX 0x063E
#define IQS5XX_XY_CFG0 0x0669
#define IQS5XX_X_RES 0x066E
#define IQS5XX_Y_RES 0x0670
#define IQS5XX_CHKSM 0x83C0
@@ -99,6 +98,7 @@ struct iqs5xx_private {
struct i2c_client *client;
struct input_dev *input;
struct gpio_desc *reset_gpio;
struct touchscreen_properties prop;
struct mutex lock;
u8 bl_status;
};
@@ -126,6 +126,14 @@ struct iqs5xx_touch_data {
u8 area;
} __packed;
struct iqs5xx_status {
u8 sys_info[2];
u8 num_active;
__be16 rel_x;
__be16 rel_y;
struct iqs5xx_touch_data touch_data[IQS5XX_NUM_CONTACTS];
} __packed;
static int iqs5xx_read_burst(struct i2c_client *client,
u16 reg, void *val, u16 len)
{
@@ -182,11 +190,6 @@ static int iqs5xx_read_word(struct i2c_client *client, u16 reg, u16 *val)
return 0;
}
static int iqs5xx_read_byte(struct i2c_client *client, u16 reg, u8 *val)
{
return iqs5xx_read_burst(client, reg, val, sizeof(*val));
}
static int iqs5xx_write_burst(struct i2c_client *client,
u16 reg, const void *val, u16 len)
{
@@ -337,11 +340,16 @@ static int iqs5xx_bl_open(struct i2c_client *client)
*/
for (i = 0; i < IQS5XX_BL_ATTEMPTS; i++) {
iqs5xx_reset(client);
usleep_range(350, 400);
for (j = 0; j < IQS5XX_NUM_RETRIES; j++) {
error = iqs5xx_bl_cmd(client, IQS5XX_BL_CMD_VER, 0);
if (!error || error == -EINVAL)
return error;
if (!error)
usleep_range(10000, 10100);
else if (error != -EINVAL)
continue;
return error;
}
}
@@ -481,12 +489,10 @@ static void iqs5xx_close(struct input_dev *input)
static int iqs5xx_axis_init(struct i2c_client *client)
{
struct iqs5xx_private *iqs5xx = i2c_get_clientdata(client);
struct touchscreen_properties prop;
struct touchscreen_properties *prop = &iqs5xx->prop;
struct input_dev *input;
u16 max_x, max_y;
int error;
u16 max_x, max_x_hw;
u16 max_y, max_y_hw;
u8 val;
if (!iqs5xx->input) {
input = devm_input_allocate_device(&client->dev);
@@ -506,89 +512,39 @@ static int iqs5xx_axis_init(struct i2c_client *client)
iqs5xx->input = input;
}
touchscreen_parse_properties(iqs5xx->input, true, &prop);
error = iqs5xx_read_byte(client, IQS5XX_TOTAL_RX, &val);
if (error)
return error;
max_x_hw = (val - 1) * IQS5XX_NUM_POINTS;
error = iqs5xx_read_byte(client, IQS5XX_TOTAL_TX, &val);
if (error)
return error;
max_y_hw = (val - 1) * IQS5XX_NUM_POINTS;
error = iqs5xx_read_byte(client, IQS5XX_XY_CFG0, &val);
error = iqs5xx_read_word(client, IQS5XX_X_RES, &max_x);
if (error)
return error;
if (val & IQS5XX_SWITCH_XY_AXIS)
swap(max_x_hw, max_y_hw);
if (prop.swap_x_y)
val ^= IQS5XX_SWITCH_XY_AXIS;
if (prop.invert_x)
val ^= prop.swap_x_y ? IQS5XX_FLIP_Y : IQS5XX_FLIP_X;
if (prop.invert_y)
val ^= prop.swap_x_y ? IQS5XX_FLIP_X : IQS5XX_FLIP_Y;
error = iqs5xx_write_byte(client, IQS5XX_XY_CFG0, val);
error = iqs5xx_read_word(client, IQS5XX_Y_RES, &max_y);
if (error)
return error;
if (prop.max_x > max_x_hw) {
input_abs_set_max(iqs5xx->input, ABS_MT_POSITION_X, max_x);
input_abs_set_max(iqs5xx->input, ABS_MT_POSITION_Y, max_y);
touchscreen_parse_properties(iqs5xx->input, true, prop);
if (prop->max_x > IQS5XX_XY_RES_MAX) {
dev_err(&client->dev, "Invalid maximum x-coordinate: %u > %u\n",
prop.max_x, max_x_hw);
prop->max_x, IQS5XX_XY_RES_MAX);
return -EINVAL;
} else if (prop.max_x == 0) {
error = iqs5xx_read_word(client, IQS5XX_X_RES, &max_x);
} else if (prop->max_x != max_x) {
error = iqs5xx_write_word(client, IQS5XX_X_RES, prop->max_x);
if (error)
return error;
input_abs_set_max(iqs5xx->input,
prop.swap_x_y ? ABS_MT_POSITION_Y :
ABS_MT_POSITION_X,
max_x);
} else {
max_x = (u16)prop.max_x;
}
if (prop.max_y > max_y_hw) {
if (prop->max_y > IQS5XX_XY_RES_MAX) {
dev_err(&client->dev, "Invalid maximum y-coordinate: %u > %u\n",
prop.max_y, max_y_hw);
prop->max_y, IQS5XX_XY_RES_MAX);
return -EINVAL;
} else if (prop.max_y == 0) {
error = iqs5xx_read_word(client, IQS5XX_Y_RES, &max_y);
} else if (prop->max_y != max_y) {
error = iqs5xx_write_word(client, IQS5XX_Y_RES, prop->max_y);
if (error)
return error;
input_abs_set_max(iqs5xx->input,
prop.swap_x_y ? ABS_MT_POSITION_X :
ABS_MT_POSITION_Y,
max_y);
} else {
max_y = (u16)prop.max_y;
}
/*
* Write horizontal and vertical resolution to the device in case its
* original defaults were overridden or swapped as per the properties
* specified in the device tree.
*/
error = iqs5xx_write_word(client,
prop.swap_x_y ? IQS5XX_Y_RES : IQS5XX_X_RES,
max_x);
if (error)
return error;
error = iqs5xx_write_word(client,
prop.swap_x_y ? IQS5XX_X_RES : IQS5XX_Y_RES,
max_y);
if (error)
return error;
error = input_mt_init_slots(iqs5xx->input, IQS5XX_NUM_CONTACTS,
INPUT_MT_DIRECT);
if (error)
@@ -603,7 +559,6 @@ static int iqs5xx_dev_init(struct i2c_client *client)
struct iqs5xx_private *iqs5xx = i2c_get_clientdata(client);
struct iqs5xx_dev_id_info *dev_id_info;
int error;
u8 val;
u8 buf[sizeof(*dev_id_info) + 1];
error = iqs5xx_read_burst(client, IQS5XX_PROD_NUM,
@@ -666,18 +621,18 @@ static int iqs5xx_dev_init(struct i2c_client *client)
if (error)
return error;
error = iqs5xx_read_byte(client, IQS5XX_SYS_CFG0, &val);
error = iqs5xx_write_byte(client, IQS5XX_SYS_CTRL0, IQS5XX_ACK_RESET);
if (error)
return error;
val |= IQS5XX_SETUP_COMPLETE;
val &= ~IQS5XX_SW_INPUT_EVENT;
error = iqs5xx_write_byte(client, IQS5XX_SYS_CFG0, val);
error = iqs5xx_write_byte(client, IQS5XX_SYS_CFG0,
IQS5XX_SETUP_COMPLETE | IQS5XX_WDT |
IQS5XX_ALP_REATI | IQS5XX_REATI);
if (error)
return error;
val = IQS5XX_TP_EVENT | IQS5XX_EVENT_MODE;
error = iqs5xx_write_byte(client, IQS5XX_SYS_CFG1, val);
error = iqs5xx_write_byte(client, IQS5XX_SYS_CFG1,
IQS5XX_TP_EVENT | IQS5XX_EVENT_MODE);
if (error)
return error;
@@ -688,13 +643,12 @@ static int iqs5xx_dev_init(struct i2c_client *client)
iqs5xx->bl_status = dev_id_info->bl_status;
/*
* Closure of the first communication window that appears following the
* release of reset appears to kick off an initialization period during
* which further communication is met with clock stretching. The return
* from this function is delayed so that further communication attempts
* avoid this period.
* The following delay allows ATI to complete before the open and close
* callbacks are free to elicit I2C communication. Any attempts to read
* from or write to the device during this time may face extended clock
* stretching and prompt the I2C controller to report an error.
*/
msleep(100);
msleep(250);
return 0;
}
@@ -702,7 +656,7 @@ static int iqs5xx_dev_init(struct i2c_client *client)
static irqreturn_t iqs5xx_irq(int irq, void *data)
{
struct iqs5xx_private *iqs5xx = data;
struct iqs5xx_touch_data touch_data[IQS5XX_NUM_CONTACTS];
struct iqs5xx_status status;
struct i2c_client *client = iqs5xx->client;
struct input_dev *input = iqs5xx->input;
int error, i;
@@ -715,21 +669,35 @@ static irqreturn_t iqs5xx_irq(int irq, void *data)
if (iqs5xx->bl_status == IQS5XX_BL_STATUS_RESET)
return IRQ_NONE;
error = iqs5xx_read_burst(client, IQS5XX_ABS_X,
touch_data, sizeof(touch_data));
error = iqs5xx_read_burst(client, IQS5XX_SYS_INFO0,
&status, sizeof(status));
if (error)
return IRQ_NONE;
for (i = 0; i < ARRAY_SIZE(touch_data); i++) {
u16 pressure = be16_to_cpu(touch_data[i].strength);
if (status.sys_info[0] & IQS5XX_SHOW_RESET) {
dev_err(&client->dev, "Unexpected device reset\n");
error = iqs5xx_dev_init(client);
if (error) {
dev_err(&client->dev,
"Failed to re-initialize device: %d\n", error);
return IRQ_NONE;
}
return IRQ_HANDLED;
}
for (i = 0; i < ARRAY_SIZE(status.touch_data); i++) {
struct iqs5xx_touch_data *touch_data = &status.touch_data[i];
u16 pressure = be16_to_cpu(touch_data->strength);
input_mt_slot(input, i);
if (input_mt_report_slot_state(input, MT_TOOL_FINGER,
pressure != 0)) {
input_report_abs(input, ABS_MT_POSITION_X,
be16_to_cpu(touch_data[i].abs_x));
input_report_abs(input, ABS_MT_POSITION_Y,
be16_to_cpu(touch_data[i].abs_y));
touchscreen_report_pos(iqs5xx->input, &iqs5xx->prop,
be16_to_cpu(touch_data->abs_x),
be16_to_cpu(touch_data->abs_y),
true);
input_report_abs(input, ABS_MT_PRESSURE, pressure);
}
}
@@ -884,7 +852,7 @@ static int iqs5xx_fw_file_parse(struct i2c_client *client,
static int iqs5xx_fw_file_write(struct i2c_client *client, const char *fw_file)
{
struct iqs5xx_private *iqs5xx = i2c_get_clientdata(client);
int error;
int error, error_bl = 0;
u8 *pmap;
if (iqs5xx->bl_status == IQS5XX_BL_STATUS_NONE)
@@ -938,6 +906,7 @@ err_reset:
usleep_range(10000, 10100);
}
error_bl = error;
error = iqs5xx_dev_init(client);
if (!error && iqs5xx->bl_status == IQS5XX_BL_STATUS_RESET)
error = -EINVAL;
@@ -949,11 +918,15 @@ err_reset:
err_kfree:
kfree(pmap);
if (error_bl)
return error_bl;
return error;
}
static ssize_t fw_file_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t fw_file_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct iqs5xx_private *iqs5xx = dev_get_drvdata(dev);
struct i2c_client *client = iqs5xx->client;
@@ -1012,7 +985,7 @@ static int __maybe_unused iqs5xx_suspend(struct device *dev)
struct input_dev *input = iqs5xx->input;
int error = 0;
if (!input)
if (!input || device_may_wakeup(dev))
return error;
mutex_lock(&input->mutex);
@@ -1031,7 +1004,7 @@ static int __maybe_unused iqs5xx_resume(struct device *dev)
struct input_dev *input = iqs5xx->input;
int error = 0;
if (!input)
if (!input || device_may_wakeup(dev))
return error;
mutex_lock(&input->mutex);

8
drivers/input/touchscreen/melfas_mip4.c
View File

@@ -465,13 +465,13 @@ static void mip4_report_keys(struct mip4_ts *ts, u8 *packet)
static void mip4_report_touch(struct mip4_ts *ts, u8 *packet)
{
int id;
bool hover;
bool palm;
bool __always_unused hover;
bool __always_unused palm;
bool state;
u16 x, y;
u8 pressure_stage = 0;
u8 __always_unused pressure_stage = 0;
u8 pressure;
u8 size;
u8 __always_unused size;
u8 touch_major;
u8 touch_minor;

3
drivers/input/touchscreen/raydium_i2c_ts.c
View File

@@ -445,6 +445,7 @@ static int raydium_i2c_write_object(struct i2c_client *client,
enum raydium_bl_ack state)
{
int error;
static const u8 cmd[] = { 0xFF, 0x39 };
error = raydium_i2c_send(client, RM_CMD_BOOT_WRT, data, len);
if (error) {
@@ -453,7 +454,7 @@ static int raydium_i2c_write_object(struct i2c_client *client,
return error;
}
error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, NULL, 0);
error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, cmd, sizeof(cmd));
if (error) {
dev_err(&client->dev, "Ack obj command failed: %d\n", error);
return error;

9
drivers/input/touchscreen/st1232.c
View File

@@ -94,8 +94,13 @@ static int st1232_ts_wait_ready(struct st1232_ts_data *ts)
for (retries = 10; retries; retries--) {
error = st1232_ts_read_data(ts, REG_STATUS, 1);
if (!error && ts->read_buf[0] == (STATUS_NORMAL | ERROR_NONE))
return 0;
if (!error) {
switch (ts->read_buf[0]) {
case STATUS_NORMAL | ERROR_NONE:
case STATUS_IDLE | ERROR_NONE:
return 0;
}
}
usleep_range(1000, 2000);
}

1
drivers/input/touchscreen/stmpe-ts.c
View File

@@ -52,6 +52,7 @@
* @idev: registered input device
* @work: a work item used to scan the device
* @dev: a pointer back to the MFD cell struct device*
* @prop: Touchscreen properties
* @ave_ctrl: Sample average control
* (0 -> 1 sample, 1 -> 2 samples, 2 -> 4 samples, 3 -> 8 samples)
* @touch_det_delay: Touch detect interrupt delay

1
drivers/input/touchscreen/sur40.c
View File

@@ -787,6 +787,7 @@ static int sur40_probe(struct usb_interface *interface,
dev_err(&interface->dev,
"Unable to register video controls.");
v4l2_ctrl_handler_free(&sur40->hdl);
error = sur40->hdl.error;
goto err_unreg_v4l2;
}

2
drivers/input/touchscreen/surface3_spi.c
View File

@@ -94,9 +94,7 @@ static void surface3_spi_report_touch(struct surface3_ts_data *ts_data,
static void surface3_spi_process_touch(struct surface3_ts_data *ts_data, u8 *data)
{
u16 timestamp;
unsigned int i;
timestamp = get_unaligned_le16(&data[15]);
for (i = 0; i < 13; i++) {
struct surface3_ts_data_finger *finger;

3
drivers/input/touchscreen/usbtouchscreen.c
View File

@@ -1044,6 +1044,7 @@ static void nexio_exit(struct usbtouch_usb *usbtouch)
static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
{
struct device *dev = &usbtouch->interface->dev;
struct nexio_touch_packet *packet = (void *) pkt;
struct nexio_priv *priv = usbtouch->priv;
unsigned int data_len = be16_to_cpu(packet->data_len);
@@ -1062,6 +1063,8 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
/* send ACK */
ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
if (ret)
dev_warn(dev, "Failed to submit ACK URB: %d\n", ret);
if (!usbtouch->type->max_xc) {
usbtouch->type->max_xc = 2 * x_len;

4
drivers/input/touchscreen/zinitix.c
View File

@@ -161,7 +161,7 @@ static int zinitix_read_data(struct i2c_client *client,
ret = i2c_master_recv(client, (u8 *)values, length);
if (ret != length)
return ret < 0 ? ret : -EIO; ;
return ret < 0 ? ret : -EIO;
return 0;
}
@@ -190,7 +190,7 @@ static int zinitix_write_cmd(struct i2c_client *client, u16 reg)
return 0;
}
static bool zinitix_init_touch(struct bt541_ts_data *bt541)
static int zinitix_init_touch(struct bt541_ts_data *bt541)
{
struct i2c_client *client = bt541->client;
int i;

10
fs/gfs2/bmap.c
View File

@@ -1230,6 +1230,9 @@ static int gfs2_iomap_end(struct inode *inode, loff_t pos, loff_t length,
gfs2_inplace_release(ip);
if (ip->i_qadata && ip->i_qadata->qa_qd_num)
gfs2_quota_unlock(ip);
if (length != written && (iomap->flags & IOMAP_F_NEW)) {
/* Deallocate blocks that were just allocated. */
loff_t blockmask = i_blocksize(inode) - 1;
@@ -1242,9 +1245,6 @@ static int gfs2_iomap_end(struct inode *inode, loff_t pos, loff_t length,
}
}
if (ip->i_qadata && ip->i_qadata->qa_qd_num)
gfs2_quota_unlock(ip);
if (unlikely(!written))
goto out_unlock;
@@ -1538,13 +1538,13 @@ more_rgrps:
goto out;
}
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
0, rd_gh);
LM_FLAG_NODE_SCOPE, rd_gh);
if (ret)
goto out;
/* Must be done with the rgrp glock held: */
if (gfs2_rs_active(&ip->i_res) &&
rgd == ip->i_res.rs_rbm.rgd)
rgd == ip->i_res.rs_rgd)
gfs2_rs_deltree(&ip->i_res);
}

8
fs/gfs2/file.c
View File

@@ -716,10 +716,10 @@ static int gfs2_release(struct inode *inode, struct file *file)
kfree(file->private_data);
file->private_data = NULL;
if (file->f_mode & FMODE_WRITE) {
if (gfs2_rs_active(&ip->i_res))
gfs2_rs_delete(ip, &inode->i_writecount);
if (file->f_mode & FMODE_WRITE)
gfs2_qa_put(ip);
}
return 0;
}
@@ -1112,8 +1112,8 @@ static long __gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t
goto out_qunlock;
/* check if the selected rgrp limits our max_blks further */
if (ap.allowed && ap.allowed < max_blks)
max_blks = ap.allowed;
if (ip->i_res.rs_reserved < max_blks)
max_blks = ip->i_res.rs_reserved;
/* Almost done. Calculate bytes that can be written using
* max_blks. We also recompute max_bytes, data_blocks and

22
fs/gfs2/glock.c
View File

@@ -313,9 +313,23 @@ void gfs2_glock_put(struct gfs2_glock *gl)
static inline int may_grant(const struct gfs2_glock *gl, const struct gfs2_holder *gh)
{
const struct gfs2_holder *gh_head = list_first_entry(&gl->gl_holders, const struct gfs2_holder, gh_list);
if ((gh->gh_state == LM_ST_EXCLUSIVE ||
gh_head->gh_state == LM_ST_EXCLUSIVE) && gh != gh_head)
return 0;
if (gh != gh_head) {
/**
* Here we make a special exception to grant holders who agree
* to share the EX lock with other holders who also have the
* bit set. If the original holder has the LM_FLAG_NODE_SCOPE bit
* is set, we grant more holders with the bit set.
*/
if (gh_head->gh_state == LM_ST_EXCLUSIVE &&
(gh_head->gh_flags & LM_FLAG_NODE_SCOPE) &&
gh->gh_state == LM_ST_EXCLUSIVE &&
(gh->gh_flags & LM_FLAG_NODE_SCOPE))
return 1;
if ((gh->gh_state == LM_ST_EXCLUSIVE ||
gh_head->gh_state == LM_ST_EXCLUSIVE))
return 0;
}
if (gl->gl_state == gh->gh_state)
return 1;
if (gh->gh_flags & GL_EXACT)
@@ -2030,6 +2044,8 @@ static const char *hflags2str(char *buf, u16 flags, unsigned long iflags)
*p++ = 'A';
if (flags & LM_FLAG_PRIORITY)
*p++ = 'p';
if (flags & LM_FLAG_NODE_SCOPE)
*p++ = 'n';
if (flags & GL_ASYNC)
*p++ = 'a';
if (flags & GL_EXACT)

6
fs/gfs2/glock.h
View File

@@ -75,6 +75,11 @@ enum {
* request and directly join the other shared lock. A shared lock request
* without the priority flag might be forced to wait until the deferred
* requested had acquired and released the lock.
*
* LM_FLAG_NODE_SCOPE
* This holder agrees to share the lock within this node. In other words,
* the glock is held in EX mode according to DLM, but local holders on the
* same node can share it.
*/
#define LM_FLAG_TRY 0x0001
@@ -82,6 +87,7 @@ enum {
#define LM_FLAG_NOEXP 0x0004
#define LM_FLAG_ANY 0x0008
#define LM_FLAG_PRIORITY 0x0010
#define LM_FLAG_NODE_SCOPE 0x0020
#define GL_ASYNC 0x0040
#define GL_EXACT 0x0080
#define GL_SKIP 0x0100

38
fs/gfs2/glops.c
View File

@@ -86,16 +86,12 @@ static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
struct gfs2_trans tr;
unsigned int revokes;
int ret;
memset(&tr, 0, sizeof(tr));
INIT_LIST_HEAD(&tr.tr_buf);
INIT_LIST_HEAD(&tr.tr_databuf);
INIT_LIST_HEAD(&tr.tr_ail1_list);
INIT_LIST_HEAD(&tr.tr_ail2_list);
tr.tr_revokes = atomic_read(&gl->gl_ail_count);
revokes = atomic_read(&gl->gl_ail_count);
if (!tr.tr_revokes) {
if (!revokes) {
bool have_revokes;
bool log_in_flight;
@@ -122,20 +118,14 @@ static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
return 0;
}
/* A shortened, inline version of gfs2_trans_begin()
* tr->alloced is not set since the transaction structure is
* on the stack */
tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes);
tr.tr_ip = _RET_IP_;
ret = gfs2_log_reserve(sdp, tr.tr_reserved);
if (ret < 0)
return ret;
WARN_ON_ONCE(current->journal_info);
current->journal_info = &tr;
__gfs2_ail_flush(gl, 0, tr.tr_revokes);
memset(&tr, 0, sizeof(tr));
set_bit(TR_ONSTACK, &tr.tr_flags);
ret = __gfs2_trans_begin(&tr, sdp, 0, revokes, _RET_IP_);
if (ret)
goto flush;
__gfs2_ail_flush(gl, 0, revokes);
gfs2_trans_end(sdp);
flush:
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_AIL_EMPTY_GL);
@@ -146,19 +136,15 @@ void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
{
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
unsigned int revokes = atomic_read(&gl->gl_ail_count);
unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64);
int ret;
if (!revokes)
return;
while (revokes > max_revokes)
max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64);
ret = gfs2_trans_begin(sdp, 0, max_revokes);
ret = gfs2_trans_begin(sdp, 0, revokes);
if (ret)
return;
__gfs2_ail_flush(gl, fsync, max_revokes);
__gfs2_ail_flush(gl, fsync, revokes);
gfs2_trans_end(sdp);
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_AIL_FLUSH);

54
fs/gfs2/incore.h
View File

@@ -20,6 +20,7 @@
#include <linux/percpu.h>
#include <linux/lockref.h>
#include <linux/rhashtable.h>
#include <linux/mutex.h>
#define DIO_WAIT 0x00000010
#define DIO_METADATA 0x00000020
@@ -106,7 +107,8 @@ struct gfs2_rgrpd {
u32 rd_data; /* num of data blocks in rgrp */
u32 rd_bitbytes; /* number of bytes in data bitmaps */
u32 rd_free;
u32 rd_reserved; /* number of blocks reserved */
u32 rd_requested; /* number of blocks in rd_rstree */
u32 rd_reserved; /* number of reserved blocks */
u32 rd_free_clone;
u32 rd_dinodes;
u64 rd_igeneration;
@@ -122,34 +124,10 @@ struct gfs2_rgrpd {
#define GFS2_RDF_PREFERRED 0x80000000 /* This rgrp is preferred */
#define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */
spinlock_t rd_rsspin; /* protects reservation related vars */
struct mutex rd_mutex;
struct rb_root rd_rstree; /* multi-block reservation tree */
};
struct gfs2_rbm {
struct gfs2_rgrpd *rgd;
u32 offset; /* The offset is bitmap relative */
int bii; /* Bitmap index */
};
static inline struct gfs2_bitmap *rbm_bi(const struct gfs2_rbm *rbm)
{
return rbm->rgd->rd_bits + rbm->bii;
}
static inline u64 gfs2_rbm_to_block(const struct gfs2_rbm *rbm)
{
BUG_ON(rbm->offset >= rbm->rgd->rd_data);
return rbm->rgd->rd_data0 + (rbm_bi(rbm)->bi_start * GFS2_NBBY) +
rbm->offset;
}
static inline bool gfs2_rbm_eq(const struct gfs2_rbm *rbm1,
const struct gfs2_rbm *rbm2)
{
return (rbm1->rgd == rbm2->rgd) && (rbm1->bii == rbm2->bii) &&
(rbm1->offset == rbm2->offset);
}
enum gfs2_state_bits {
BH_Pinned = BH_PrivateStart,
BH_Escaped = BH_PrivateStart + 1,
@@ -313,9 +291,11 @@ struct gfs2_qadata { /* quota allocation data */
*/
struct gfs2_blkreserv {
struct rb_node rs_node; /* link to other block reservations */
struct gfs2_rbm rs_rbm; /* Start of reservation */
u32 rs_free; /* how many blocks are still free */
struct rb_node rs_node; /* node within rd_rstree */
struct gfs2_rgrpd *rs_rgd;
u64 rs_start;
u32 rs_requested;
u32 rs_reserved; /* number of reserved blocks */
};
/*
@@ -490,7 +470,7 @@ struct gfs2_quota_data {
enum {
TR_TOUCHED = 1,
TR_ATTACHED = 2,
TR_ALLOCED = 3,
TR_ONSTACK = 3,
};
struct gfs2_trans {
@@ -506,7 +486,6 @@ struct gfs2_trans {
unsigned int tr_num_buf_rm;
unsigned int tr_num_databuf_rm;
unsigned int tr_num_revoke;
unsigned int tr_num_revoke_rm;
struct list_head tr_list;
struct list_head tr_databuf;
@@ -531,6 +510,7 @@ struct gfs2_jdesc {
unsigned int nr_extents;
struct work_struct jd_work;
struct inode *jd_inode;
struct bio *jd_log_bio;
unsigned long jd_flags;
#define JDF_RECOVERY 1
unsigned int jd_jid;
@@ -585,6 +565,7 @@ struct gfs2_args {
unsigned int ar_errors:2; /* errors=withdraw | panic */
unsigned int ar_nobarrier:1; /* do not send barriers */
unsigned int ar_rgrplvb:1; /* use lvbs for rgrp info */
unsigned int ar_got_rgrplvb:1; /* Was the rgrplvb opt given? */
unsigned int ar_loccookie:1; /* use location based readdir
cookies */
s32 ar_commit; /* Commit interval */
@@ -821,7 +802,6 @@ struct gfs2_sbd {
struct gfs2_trans *sd_log_tr;
unsigned int sd_log_blks_reserved;
int sd_log_committed_revoke;
atomic_t sd_log_pinned;
unsigned int sd_log_num_revoke;
@@ -834,24 +814,22 @@ struct gfs2_sbd {
atomic_t sd_log_thresh2;
atomic_t sd_log_blks_free;
atomic_t sd_log_blks_needed;
atomic_t sd_log_revokes_available;
wait_queue_head_t sd_log_waitq;
wait_queue_head_t sd_logd_waitq;
u64 sd_log_sequence;
unsigned int sd_log_head;
unsigned int sd_log_tail;
int sd_log_idle;
struct rw_semaphore sd_log_flush_lock;
atomic_t sd_log_in_flight;
struct bio *sd_log_bio;
wait_queue_head_t sd_log_flush_wait;
int sd_log_error; /* First log error */
wait_queue_head_t sd_withdraw_wait;
atomic_t sd_reserving_log;
wait_queue_head_t sd_reserving_log_wait;
unsigned int sd_log_tail;
unsigned int sd_log_flush_tail;
unsigned int sd_log_head;
unsigned int sd_log_flush_head;
spinlock_t sd_ail_lock;

6
fs/gfs2/inode.c
View File

@@ -1147,7 +1147,7 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
if (!rgd)
goto out_inodes;
gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2);
gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, LM_FLAG_NODE_SCOPE, ghs + 2);
error = gfs2_glock_nq(ghs); /* parent */
@@ -1453,8 +1453,8 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
error = -ENOENT;
goto out_gunlock;
}
error = gfs2_glock_nq_init(nrgd->rd_gl, LM_ST_EXCLUSIVE, 0,
&rd_gh);
error = gfs2_glock_nq_init(nrgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rd_gh);
if (error)
goto out_gunlock;
}

8
fs/gfs2/lock_dlm.c
View File

@@ -284,7 +284,6 @@ static void gdlm_put_lock(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
int lvb_needs_unlock = 0;
int error;
if (gl->gl_lksb.sb_lkid == 0) {
@@ -297,13 +296,10 @@ static void gdlm_put_lock(struct gfs2_glock *gl)
gfs2_sbstats_inc(gl, GFS2_LKS_DCOUNT);
gfs2_update_request_times(gl);
/* don't want to skip dlm_unlock writing the lvb when lock is ex */
if (gl->gl_lksb.sb_lvbptr && (gl->gl_state == LM_ST_EXCLUSIVE))
lvb_needs_unlock = 1;
/* don't want to skip dlm_unlock writing the lvb when lock has one */
if (test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags) &&
!lvb_needs_unlock) {
!gl->gl_lksb.sb_lvbptr) {
gfs2_glock_free(gl);
return;
}

531
fs/gfs2/log.c
View File

@@ -50,10 +50,12 @@ unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct)
unsigned int blks;
unsigned int first, second;
/* The initial struct gfs2_log_descriptor block */
blks = 1;
first = sdp->sd_ldptrs;
if (nstruct > first) {
/* Subsequent struct gfs2_meta_header blocks */
second = sdp->sd_inptrs;
blks += DIV_ROUND_UP(nstruct - first, second);
}
@@ -89,7 +91,7 @@ void gfs2_remove_from_ail(struct gfs2_bufdata *bd)
static int gfs2_ail1_start_one(struct gfs2_sbd *sdp,
struct writeback_control *wbc,
struct gfs2_trans *tr)
struct gfs2_trans *tr, struct blk_plug *plug)
__releases(&sdp->sd_ail_lock)
__acquires(&sdp->sd_ail_lock)
{
@@ -131,6 +133,11 @@ __acquires(&sdp->sd_ail_lock)
continue;
spin_unlock(&sdp->sd_ail_lock);
ret = generic_writepages(mapping, wbc);
if (need_resched()) {
blk_finish_plug(plug);
cond_resched();
blk_start_plug(plug);
}
spin_lock(&sdp->sd_ail_lock);
if (ret == -ENODATA) /* if a jdata write into a new hole */
ret = 0; /* ignore it */
@@ -205,7 +212,7 @@ restart:
list_for_each_entry_reverse(tr, head, tr_list) {
if (wbc->nr_to_write <= 0)
break;
ret = gfs2_ail1_start_one(sdp, wbc, tr);
ret = gfs2_ail1_start_one(sdp, wbc, tr, &plug);
if (ret) {
if (ret == -EBUSY)
goto restart;
@@ -240,6 +247,45 @@ static void gfs2_ail1_start(struct gfs2_sbd *sdp)
return gfs2_ail1_flush(sdp, &wbc);
}
static void gfs2_log_update_flush_tail(struct gfs2_sbd *sdp)
{
unsigned int new_flush_tail = sdp->sd_log_head;
struct gfs2_trans *tr;
if (!list_empty(&sdp->sd_ail1_list)) {
tr = list_last_entry(&sdp->sd_ail1_list,
struct gfs2_trans, tr_list);
new_flush_tail = tr->tr_first;
}
sdp->sd_log_flush_tail = new_flush_tail;
}
static void gfs2_log_update_head(struct gfs2_sbd *sdp)
{
unsigned int new_head = sdp->sd_log_flush_head;
if (sdp->sd_log_flush_tail == sdp->sd_log_head)
sdp->sd_log_flush_tail = new_head;
sdp->sd_log_head = new_head;
}
/**
* gfs2_ail_empty_tr - empty one of the ail lists of a transaction
*/
static void gfs2_ail_empty_tr(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
struct list_head *head)
{
struct gfs2_bufdata *bd;
while (!list_empty(head)) {
bd = list_first_entry(head, struct gfs2_bufdata,
bd_ail_st_list);
gfs2_assert(sdp, bd->bd_tr == tr);
gfs2_remove_from_ail(bd);
}
}
/**
* gfs2_ail1_empty_one - Check whether or not a trans in the AIL has been synced
* @sdp: the filesystem
@@ -315,6 +361,7 @@ static int gfs2_ail1_empty(struct gfs2_sbd *sdp, int max_revokes)
else
oldest_tr = 0;
}
gfs2_log_update_flush_tail(sdp);
ret = list_empty(&sdp->sd_ail1_list);
spin_unlock(&sdp->sd_ail_lock);
@@ -348,49 +395,71 @@ static void gfs2_ail1_wait(struct gfs2_sbd *sdp)
spin_unlock(&sdp->sd_ail_lock);
}
/**
* gfs2_ail_empty_tr - empty one of the ail lists for a transaction
*/
static void gfs2_ail_empty_tr(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
struct list_head *head)
static void __ail2_empty(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
{
struct gfs2_bufdata *bd;
while (!list_empty(head)) {
bd = list_first_entry(head, struct gfs2_bufdata,
bd_ail_st_list);
gfs2_assert(sdp, bd->bd_tr == tr);
gfs2_remove_from_ail(bd);
}
gfs2_ail_empty_tr(sdp, tr, &tr->tr_ail2_list);
list_del(&tr->tr_list);
gfs2_assert_warn(sdp, list_empty(&tr->tr_ail1_list));
gfs2_assert_warn(sdp, list_empty(&tr->tr_ail2_list));
gfs2_trans_free(sdp, tr);
}
static void ail2_empty(struct gfs2_sbd *sdp, unsigned int new_tail)
{
struct gfs2_trans *tr, *safe;
struct list_head *ail2_list = &sdp->sd_ail2_list;
unsigned int old_tail = sdp->sd_log_tail;
int wrap = (new_tail < old_tail);
int a, b, rm;
struct gfs2_trans *tr, *safe;
spin_lock(&sdp->sd_ail_lock);
list_for_each_entry_safe(tr, safe, &sdp->sd_ail2_list, tr_list) {
a = (old_tail <= tr->tr_first);
b = (tr->tr_first < new_tail);
rm = (wrap) ? (a || b) : (a && b);
if (!rm)
continue;
gfs2_ail_empty_tr(sdp, tr, &tr->tr_ail2_list);
list_del(&tr->tr_list);
gfs2_assert_warn(sdp, list_empty(&tr->tr_ail1_list));
gfs2_assert_warn(sdp, list_empty(&tr->tr_ail2_list));
gfs2_trans_free(sdp, tr);
if (old_tail <= new_tail) {
list_for_each_entry_safe(tr, safe, ail2_list, tr_list) {
if (old_tail <= tr->tr_first && tr->tr_first < new_tail)
__ail2_empty(sdp, tr);
}
} else {
list_for_each_entry_safe(tr, safe, ail2_list, tr_list) {
if (old_tail <= tr->tr_first || tr->tr_first < new_tail)
__ail2_empty(sdp, tr);
}
}
spin_unlock(&sdp->sd_ail_lock);
}
/**
* gfs2_log_is_empty - Check if the log is empty
* @sdp: The GFS2 superblock
*/
bool gfs2_log_is_empty(struct gfs2_sbd *sdp) {
return atomic_read(&sdp->sd_log_blks_free) == sdp->sd_jdesc->jd_blocks;
}
static bool __gfs2_log_try_reserve_revokes(struct gfs2_sbd *sdp, unsigned int revokes)
{
unsigned int available;
available = atomic_read(&sdp->sd_log_revokes_available);
while (available >= revokes) {
if (atomic_try_cmpxchg(&sdp->sd_log_revokes_available,
&available, available - revokes))
return true;
}
return false;
}
/**
* gfs2_log_release_revokes - Release a given number of revokes
* @sdp: The GFS2 superblock
* @revokes: The number of revokes to release
*
* sdp->sd_log_flush_lock must be held.
*/
void gfs2_log_release_revokes(struct gfs2_sbd *sdp, unsigned int revokes)
{
if (revokes)
atomic_add(revokes, &sdp->sd_log_revokes_available);
}
/**
* gfs2_log_release - Release a given number of log blocks
* @sdp: The GFS2 superblock
@@ -400,86 +469,141 @@ static void ail2_empty(struct gfs2_sbd *sdp, unsigned int new_tail)
void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
{
atomic_add(blks, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, blks);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
up_read(&sdp->sd_log_flush_lock);
if (atomic_read(&sdp->sd_log_blks_needed))
wake_up(&sdp->sd_log_waitq);
}
/**
* gfs2_log_reserve - Make a log reservation
* __gfs2_log_try_reserve - Try to make a log reservation
* @sdp: The GFS2 superblock
* @blks: The number of blocks to reserve
* @taboo_blks: The number of blocks to leave free
*
* Note that we never give out the last few blocks of the journal. Thats
* due to the fact that there is a small number of header blocks
* associated with each log flush. The exact number can't be known until
* flush time, so we ensure that we have just enough free blocks at all
* times to avoid running out during a log flush.
* Try to do the same as __gfs2_log_reserve(), but fail if no more log
* space is immediately available.
*/
static bool __gfs2_log_try_reserve(struct gfs2_sbd *sdp, unsigned int blks,
unsigned int taboo_blks)
{
unsigned wanted = blks + taboo_blks;
unsigned int free_blocks;
free_blocks = atomic_read(&sdp->sd_log_blks_free);
while (free_blocks >= wanted) {
if (atomic_try_cmpxchg(&sdp->sd_log_blks_free, &free_blocks,
free_blocks - blks)) {
trace_gfs2_log_blocks(sdp, -blks);
return true;
}
}
return false;
}
/**
* __gfs2_log_reserve - Make a log reservation
* @sdp: The GFS2 superblock
* @blks: The number of blocks to reserve
* @taboo_blks: The number of blocks to leave free
*
* @taboo_blks is set to 0 for logd, and to GFS2_LOG_FLUSH_MIN_BLOCKS
* for all other processes. This ensures that when the log is almost full,
* logd will still be able to call gfs2_log_flush one more time without
* blocking, which will advance the tail and make some more log space
* available.
*
* We no longer flush the log here, instead we wake up logd to do that
* for us. To avoid the thundering herd and to ensure that we deal fairly
* with queued waiters, we use an exclusive wait. This means that when we
* get woken with enough journal space to get our reservation, we need to
* wake the next waiter on the list.
*
* Returns: errno
*/
int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks)
static void __gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks,
unsigned int taboo_blks)
{
int ret = 0;
unsigned reserved_blks = 7 * (4096 / sdp->sd_vfs->s_blocksize);
unsigned wanted = blks + reserved_blks;
DEFINE_WAIT(wait);
int did_wait = 0;
unsigned wanted = blks + taboo_blks;
unsigned int free_blocks;
if (gfs2_assert_warn(sdp, blks) ||
gfs2_assert_warn(sdp, blks <= sdp->sd_jdesc->jd_blocks))
return -EINVAL;
atomic_add(blks, &sdp->sd_log_blks_needed);
retry:
free_blocks = atomic_read(&sdp->sd_log_blks_free);
if (unlikely(free_blocks <= wanted)) {
do {
prepare_to_wait_exclusive(&sdp->sd_log_waitq, &wait,
TASK_UNINTERRUPTIBLE);
for (;;) {
if (current != sdp->sd_logd_process)
wake_up(&sdp->sd_logd_waitq);
did_wait = 1;
if (atomic_read(&sdp->sd_log_blks_free) <= wanted)
io_schedule();
free_blocks = atomic_read(&sdp->sd_log_blks_free);
} while(free_blocks <= wanted);
finish_wait(&sdp->sd_log_waitq, &wait);
io_wait_event(sdp->sd_log_waitq,
(free_blocks = atomic_read(&sdp->sd_log_blks_free),
free_blocks >= wanted));
do {
if (atomic_try_cmpxchg(&sdp->sd_log_blks_free,
&free_blocks,
free_blocks - blks))
goto reserved;
} while (free_blocks >= wanted);
}
atomic_inc(&sdp->sd_reserving_log);
if (atomic_cmpxchg(&sdp->sd_log_blks_free, free_blocks,
free_blocks - blks) != free_blocks) {
if (atomic_dec_and_test(&sdp->sd_reserving_log))
wake_up(&sdp->sd_reserving_log_wait);
goto retry;
}
atomic_sub(blks, &sdp->sd_log_blks_needed);
reserved:
trace_gfs2_log_blocks(sdp, -blks);
/*
* If we waited, then so might others, wake them up _after_ we get
* our share of the log.
*/
if (unlikely(did_wait))
if (atomic_sub_return(blks, &sdp->sd_log_blks_needed))
wake_up(&sdp->sd_log_waitq);
}
down_read(&sdp->sd_log_flush_lock);
if (unlikely(!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))) {
gfs2_log_release(sdp, blks);
ret = -EROFS;
/**
* gfs2_log_try_reserve - Try to make a log reservation
* @sdp: The GFS2 superblock
* @tr: The transaction
* @extra_revokes: The number of additional revokes reserved (output)
*
* This is similar to gfs2_log_reserve, but sdp->sd_log_flush_lock must be
* held for correct revoke accounting.
*/
bool gfs2_log_try_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
unsigned int *extra_revokes)
{
unsigned int blks = tr->tr_reserved;
unsigned int revokes = tr->tr_revokes;
unsigned int revoke_blks = 0;
*extra_revokes = 0;
if (revokes && !__gfs2_log_try_reserve_revokes(sdp, revokes)) {
revoke_blks = DIV_ROUND_UP(revokes, sdp->sd_inptrs);
*extra_revokes = revoke_blks * sdp->sd_inptrs - revokes;
blks += revoke_blks;
}
if (atomic_dec_and_test(&sdp->sd_reserving_log))
wake_up(&sdp->sd_reserving_log_wait);
return ret;
if (!blks)
return true;
if (__gfs2_log_try_reserve(sdp, blks, GFS2_LOG_FLUSH_MIN_BLOCKS))
return true;
if (!revoke_blks)
gfs2_log_release_revokes(sdp, revokes);
return false;
}
/**
* gfs2_log_reserve - Make a log reservation
* @sdp: The GFS2 superblock
* @tr: The transaction
* @extra_revokes: The number of additional revokes reserved (output)
*
* sdp->sd_log_flush_lock must not be held.
*/
void gfs2_log_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
unsigned int *extra_revokes)
{
unsigned int blks = tr->tr_reserved;
unsigned int revokes = tr->tr_revokes;
unsigned int revoke_blks = 0;
*extra_revokes = 0;
if (revokes) {
revoke_blks = DIV_ROUND_UP(revokes, sdp->sd_inptrs);
*extra_revokes = revoke_blks * sdp->sd_inptrs - revokes;
blks += revoke_blks;
}
__gfs2_log_reserve(sdp, blks, GFS2_LOG_FLUSH_MIN_BLOCKS);
}
/**
@@ -507,24 +631,20 @@ static inline unsigned int log_distance(struct gfs2_sbd *sdp, unsigned int newer
}
/**
* calc_reserved - Calculate the number of blocks to reserve when
* refunding a transaction's unused buffers.
* calc_reserved - Calculate the number of blocks to keep reserved
* @sdp: The GFS2 superblock
*
* This is complex. We need to reserve room for all our currently used
* metadata buffers (e.g. normal file I/O rewriting file time stamps) and
* all our journaled data buffers for journaled files (e.g. files in the
* metadata blocks (e.g. normal file I/O rewriting file time stamps) and
* all our journaled data blocks for journaled files (e.g. files in the
* meta_fs like rindex, or files for which chattr +j was done.)
* If we don't reserve enough space, gfs2_log_refund and gfs2_log_flush
* will count it as free space (sd_log_blks_free) and corruption will follow.
* If we don't reserve enough space, corruption will follow.
*
* We can have metadata bufs and jdata bufs in the same journal. So each
* type gets its own log header, for which we need to reserve a block.
* In fact, each type has the potential for needing more than one header
* in cases where we have more buffers than will fit on a journal page.
* We can have metadata blocks and jdata blocks in the same journal. Each
* type gets its own log descriptor, for which we need to reserve a block.
* In fact, each type has the potential for needing more than one log descriptor
* in cases where we have more blocks than will fit in a log descriptor.
* Metadata journal entries take up half the space of journaled buffer entries.
* Thus, metadata entries have buf_limit (502) and journaled buffers have
* databuf_limit (251) before they cause a wrap around.
*
* Also, we need to reserve blocks for revoke journal entries and one for an
* overall header for the lot.
@@ -533,59 +653,29 @@ static inline unsigned int log_distance(struct gfs2_sbd *sdp, unsigned int newer
*/
static unsigned int calc_reserved(struct gfs2_sbd *sdp)
{
unsigned int reserved = 0;
unsigned int mbuf;
unsigned int dbuf;
unsigned int reserved = GFS2_LOG_FLUSH_MIN_BLOCKS;
unsigned int blocks;
struct gfs2_trans *tr = sdp->sd_log_tr;
if (tr) {
mbuf = tr->tr_num_buf_new - tr->tr_num_buf_rm;
dbuf = tr->tr_num_databuf_new - tr->tr_num_databuf_rm;
reserved = mbuf + dbuf;
/* Account for header blocks */
reserved += DIV_ROUND_UP(mbuf, buf_limit(sdp));
reserved += DIV_ROUND_UP(dbuf, databuf_limit(sdp));
blocks = tr->tr_num_buf_new - tr->tr_num_buf_rm;
reserved += blocks + DIV_ROUND_UP(blocks, buf_limit(sdp));
blocks = tr->tr_num_databuf_new - tr->tr_num_databuf_rm;
reserved += blocks + DIV_ROUND_UP(blocks, databuf_limit(sdp));
}
if (sdp->sd_log_committed_revoke > 0)
reserved += gfs2_struct2blk(sdp, sdp->sd_log_committed_revoke);
/* One for the overall header */
if (reserved)
reserved++;
return reserved;
}
static unsigned int current_tail(struct gfs2_sbd *sdp)
static void log_pull_tail(struct gfs2_sbd *sdp)
{
struct gfs2_trans *tr;
unsigned int tail;
spin_lock(&sdp->sd_ail_lock);
if (list_empty(&sdp->sd_ail1_list)) {
tail = sdp->sd_log_head;
} else {
tr = list_last_entry(&sdp->sd_ail1_list, struct gfs2_trans,
tr_list);
tail = tr->tr_first;
}
spin_unlock(&sdp->sd_ail_lock);
return tail;
}
static void log_pull_tail(struct gfs2_sbd *sdp, unsigned int new_tail)
{
unsigned int dist = log_distance(sdp, new_tail, sdp->sd_log_tail);
unsigned int new_tail = sdp->sd_log_flush_tail;
unsigned int dist;
if (new_tail == sdp->sd_log_tail)
return;
dist = log_distance(sdp, new_tail, sdp->sd_log_tail);
ail2_empty(sdp, new_tail);
atomic_add(dist, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, dist);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
gfs2_log_release(sdp, dist);
sdp->sd_log_tail = new_tail;
}
@@ -698,7 +788,7 @@ void gfs2_glock_remove_revoke(struct gfs2_glock *gl)
}
/**
* gfs2_write_revokes - Add as many revokes to the system transaction as we can
* gfs2_flush_revokes - Add as many revokes to the system transaction as we can
* @sdp: The GFS2 superblock
*
* Our usual strategy is to defer writing revokes as much as we can in the hope
@@ -709,38 +799,14 @@ void gfs2_glock_remove_revoke(struct gfs2_glock *gl)
* been written back. This will basically come at no cost now, and will save
* us from having to keep track of those blocks on the AIL2 list later.
*/
void gfs2_write_revokes(struct gfs2_sbd *sdp)
void gfs2_flush_revokes(struct gfs2_sbd *sdp)
{
/* number of revokes we still have room for */
int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64);
unsigned int max_revokes = atomic_read(&sdp->sd_log_revokes_available);
gfs2_log_lock(sdp);
while (sdp->sd_log_num_revoke > max_revokes)
max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64);
max_revokes -= sdp->sd_log_num_revoke;
if (!sdp->sd_log_num_revoke) {
atomic_dec(&sdp->sd_log_blks_free);
/* If no blocks have been reserved, we need to also
* reserve a block for the header */
if (!sdp->sd_log_blks_reserved) {
atomic_dec(&sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, -2);
} else {
trace_gfs2_log_blocks(sdp, -1);
}
}
gfs2_ail1_empty(sdp, max_revokes);
gfs2_log_unlock(sdp);
if (!sdp->sd_log_num_revoke) {
atomic_inc(&sdp->sd_log_blks_free);
if (!sdp->sd_log_blks_reserved) {
atomic_inc(&sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, 2);
} else {
trace_gfs2_log_blocks(sdp, 1);
}
}
}
/**
@@ -769,7 +835,7 @@ void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
u64 dblock;
if (gfs2_withdrawn(sdp))
goto out;
return;
page = mempool_alloc(gfs2_page_pool, GFP_NOIO);
lh = page_address(page);
@@ -822,10 +888,8 @@ void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
sb->s_blocksize - LH_V1_SIZE - 4);
lh->lh_crc = cpu_to_be32(crc);
gfs2_log_write(sdp, page, sb->s_blocksize, 0, dblock);
gfs2_log_submit_bio(&sdp->sd_log_bio, REQ_OP_WRITE | op_flags);
out:
log_flush_wait(sdp);
gfs2_log_write(sdp, jd, page, sb->s_blocksize, 0, dblock);
gfs2_log_submit_bio(&jd->jd_log_bio, REQ_OP_WRITE | op_flags);
}
/**
@@ -838,25 +902,24 @@ out:
static void log_write_header(struct gfs2_sbd *sdp, u32 flags)
{
unsigned int tail;
int op_flags = REQ_PREFLUSH | REQ_FUA | REQ_META | REQ_SYNC;
enum gfs2_freeze_state state = atomic_read(&sdp->sd_freeze_state);
gfs2_assert_withdraw(sdp, (state != SFS_FROZEN));
tail = current_tail(sdp);
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) {
gfs2_ordered_wait(sdp);
log_flush_wait(sdp);
op_flags = REQ_SYNC | REQ_META | REQ_PRIO;
}
sdp->sd_log_idle = (tail == sdp->sd_log_flush_head);
gfs2_write_log_header(sdp, sdp->sd_jdesc, sdp->sd_log_sequence++, tail,
sdp->sd_log_flush_head, flags, op_flags);
sdp->sd_log_idle = (sdp->sd_log_flush_tail == sdp->sd_log_flush_head);
gfs2_write_log_header(sdp, sdp->sd_jdesc, sdp->sd_log_sequence++,
sdp->sd_log_flush_tail, sdp->sd_log_flush_head,
flags, op_flags);
gfs2_log_incr_head(sdp);
if (sdp->sd_log_tail != tail)
log_pull_tail(sdp, tail);
log_flush_wait(sdp);
log_pull_tail(sdp);
gfs2_log_update_head(sdp);
}
/**
@@ -956,10 +1019,15 @@ static void trans_drain(struct gfs2_trans *tr)
void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
{
struct gfs2_trans *tr = NULL;
unsigned int reserved_blocks = 0, used_blocks = 0;
enum gfs2_freeze_state state = atomic_read(&sdp->sd_freeze_state);
unsigned int first_log_head;
unsigned int reserved_revokes = 0;
down_write(&sdp->sd_log_flush_lock);
trace_gfs2_log_flush(sdp, 1, flags);
repeat:
/*
* Do this check while holding the log_flush_lock to prevent new
* buffers from being added to the ail via gfs2_pin()
@@ -970,28 +1038,47 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
/* Log might have been flushed while we waited for the flush lock */
if (gl && !test_bit(GLF_LFLUSH, &gl->gl_flags))
goto out;
trace_gfs2_log_flush(sdp, 1, flags);
first_log_head = sdp->sd_log_head;
sdp->sd_log_flush_head = first_log_head;
tr = sdp->sd_log_tr;
if (tr || sdp->sd_log_num_revoke) {
if (reserved_blocks)
gfs2_log_release(sdp, reserved_blocks);
reserved_blocks = sdp->sd_log_blks_reserved;
reserved_revokes = sdp->sd_log_num_revoke;
if (tr) {
sdp->sd_log_tr = NULL;
tr->tr_first = first_log_head;
if (unlikely (state == SFS_FROZEN)) {
if (gfs2_assert_withdraw_delayed(sdp,
!tr->tr_num_buf_new && !tr->tr_num_databuf_new))
goto out_withdraw;
}
}
} else if (!reserved_blocks) {
unsigned int taboo_blocks = GFS2_LOG_FLUSH_MIN_BLOCKS;
reserved_blocks = GFS2_LOG_FLUSH_MIN_BLOCKS;
if (current == sdp->sd_logd_process)
taboo_blocks = 0;
if (!__gfs2_log_try_reserve(sdp, reserved_blocks, taboo_blocks)) {
up_write(&sdp->sd_log_flush_lock);
__gfs2_log_reserve(sdp, reserved_blocks, taboo_blocks);
down_write(&sdp->sd_log_flush_lock);
goto repeat;
}
BUG_ON(sdp->sd_log_num_revoke);
}
if (flags & GFS2_LOG_HEAD_FLUSH_SHUTDOWN)
clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
sdp->sd_log_flush_head = sdp->sd_log_head;
tr = sdp->sd_log_tr;
if (tr) {
sdp->sd_log_tr = NULL;
tr->tr_first = sdp->sd_log_flush_head;
if (unlikely (state == SFS_FROZEN))
if (gfs2_assert_withdraw_delayed(sdp,
!tr->tr_num_buf_new && !tr->tr_num_databuf_new))
goto out_withdraw;
}
if (unlikely(state == SFS_FROZEN))
if (gfs2_assert_withdraw_delayed(sdp, !sdp->sd_log_num_revoke))
if (gfs2_assert_withdraw_delayed(sdp, !reserved_revokes))
goto out_withdraw;
if (gfs2_assert_withdraw_delayed(sdp,
sdp->sd_log_num_revoke == sdp->sd_log_committed_revoke))
goto out_withdraw;
gfs2_ordered_write(sdp);
if (gfs2_withdrawn(sdp))
@@ -999,16 +1086,13 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
lops_before_commit(sdp, tr);
if (gfs2_withdrawn(sdp))
goto out_withdraw;
gfs2_log_submit_bio(&sdp->sd_log_bio, REQ_OP_WRITE);
gfs2_log_submit_bio(&sdp->sd_jdesc->jd_log_bio, REQ_OP_WRITE);
if (gfs2_withdrawn(sdp))
goto out_withdraw;
if (sdp->sd_log_head != sdp->sd_log_flush_head) {
log_flush_wait(sdp);
log_write_header(sdp, flags);
} else if (sdp->sd_log_tail != current_tail(sdp) && !sdp->sd_log_idle){
atomic_dec(&sdp->sd_log_blks_free); /* Adjust for unreserved buffer */
trace_gfs2_log_blocks(sdp, -1);
} else if (sdp->sd_log_tail != sdp->sd_log_flush_tail && !sdp->sd_log_idle) {
log_write_header(sdp, flags);
}
if (gfs2_withdrawn(sdp))
@@ -1016,9 +1100,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
lops_after_commit(sdp, tr);
gfs2_log_lock(sdp);
sdp->sd_log_head = sdp->sd_log_flush_head;
sdp->sd_log_blks_reserved = 0;
sdp->sd_log_committed_revoke = 0;
spin_lock(&sdp->sd_ail_lock);
if (tr && !list_empty(&tr->tr_ail1_list)) {
@@ -1033,10 +1115,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
empty_ail1_list(sdp);
if (gfs2_withdrawn(sdp))
goto out_withdraw;
atomic_dec(&sdp->sd_log_blks_free); /* Adjust for unreserved buffer */
trace_gfs2_log_blocks(sdp, -1);
log_write_header(sdp, flags);
sdp->sd_log_head = sdp->sd_log_flush_head;
}
if (flags & (GFS2_LOG_HEAD_FLUSH_SHUTDOWN |
GFS2_LOG_HEAD_FLUSH_FREEZE))
@@ -1046,12 +1125,22 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
}
out_end:
trace_gfs2_log_flush(sdp, 0, flags);
used_blocks = log_distance(sdp, sdp->sd_log_flush_head, first_log_head);
reserved_revokes += atomic_read(&sdp->sd_log_revokes_available);
atomic_set(&sdp->sd_log_revokes_available, sdp->sd_ldptrs);
gfs2_assert_withdraw(sdp, reserved_revokes % sdp->sd_inptrs == sdp->sd_ldptrs);
if (reserved_revokes > sdp->sd_ldptrs)
reserved_blocks += (reserved_revokes - sdp->sd_ldptrs) / sdp->sd_inptrs;
out:
if (used_blocks != reserved_blocks) {
gfs2_assert_withdraw_delayed(sdp, used_blocks < reserved_blocks);
gfs2_log_release(sdp, reserved_blocks - used_blocks);
}
up_write(&sdp->sd_log_flush_lock);
gfs2_trans_free(sdp, tr);
if (gfs2_withdrawing(sdp))
gfs2_withdraw(sdp);
trace_gfs2_log_flush(sdp, 0, flags);
return;
out_withdraw:
@@ -1087,8 +1176,8 @@ static void gfs2_merge_trans(struct gfs2_sbd *sdp, struct gfs2_trans *new)
old->tr_num_databuf_new += new->tr_num_databuf_new;
old->tr_num_buf_rm += new->tr_num_buf_rm;
old->tr_num_databuf_rm += new->tr_num_databuf_rm;
old->tr_revokes += new->tr_revokes;
old->tr_num_revoke += new->tr_num_revoke;
old->tr_num_revoke_rm += new->tr_num_revoke_rm;
list_splice_tail_init(&new->tr_databuf, &old->tr_databuf);
list_splice_tail_init(&new->tr_buf, &old->tr_buf);
@@ -1110,20 +1199,17 @@ static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
if (sdp->sd_log_tr) {
gfs2_merge_trans(sdp, tr);
} else if (tr->tr_num_buf_new || tr->tr_num_databuf_new) {
gfs2_assert_withdraw(sdp, test_bit(TR_ALLOCED, &tr->tr_flags));
gfs2_assert_withdraw(sdp, !test_bit(TR_ONSTACK, &tr->tr_flags));
sdp->sd_log_tr = tr;
set_bit(TR_ATTACHED, &tr->tr_flags);
}
sdp->sd_log_committed_revoke += tr->tr_num_revoke - tr->tr_num_revoke_rm;
reserved = calc_reserved(sdp);
maxres = sdp->sd_log_blks_reserved + tr->tr_reserved;
gfs2_assert_withdraw(sdp, maxres >= reserved);
unused = maxres - reserved;
atomic_add(unused, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, unused);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
if (unused)
gfs2_log_release(sdp, unused);
sdp->sd_log_blks_reserved = reserved;
gfs2_log_unlock(sdp);
@@ -1166,15 +1252,11 @@ static void gfs2_log_shutdown(struct gfs2_sbd *sdp)
gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke);
gfs2_assert_withdraw(sdp, list_empty(&sdp->sd_ail1_list));
sdp->sd_log_flush_head = sdp->sd_log_head;
log_write_header(sdp, GFS2_LOG_HEAD_UNMOUNT | GFS2_LFC_SHUTDOWN);
log_pull_tail(sdp);
gfs2_assert_warn(sdp, sdp->sd_log_head == sdp->sd_log_tail);
gfs2_assert_warn(sdp, list_empty(&sdp->sd_ail2_list));
sdp->sd_log_head = sdp->sd_log_flush_head;
sdp->sd_log_tail = sdp->sd_log_head;
}
static inline int gfs2_jrnl_flush_reqd(struct gfs2_sbd *sdp)
@@ -1208,7 +1290,6 @@ int gfs2_logd(void *data)
struct gfs2_sbd *sdp = data;
unsigned long t = 1;
DEFINE_WAIT(wait);
bool did_flush;
while (!kthread_should_stop()) {
@@ -1227,12 +1308,10 @@ int gfs2_logd(void *data)
continue;
}
did_flush = false;
if (gfs2_jrnl_flush_reqd(sdp) || t == 0) {
gfs2_ail1_empty(sdp, 0);
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_LOGD_JFLUSH_REQD);
did_flush = true;
GFS2_LFC_LOGD_JFLUSH_REQD);
}
if (gfs2_ail_flush_reqd(sdp)) {
@@ -1240,13 +1319,9 @@ int gfs2_logd(void *data)
gfs2_ail1_wait(sdp);
gfs2_ail1_empty(sdp, 0);
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_LOGD_AIL_FLUSH_REQD);
did_flush = true;
GFS2_LFC_LOGD_AIL_FLUSH_REQD);
}
if (!gfs2_ail_flush_reqd(sdp) || did_flush)
wake_up(&sdp->sd_log_waitq);
t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
try_to_freeze();

20
fs/gfs2/log.h
View File

@@ -13,6 +13,13 @@
#include "incore.h"
#include "inode.h"
/*
* The minimum amount of log space required for a log flush is one block for
* revokes and one block for the log header. Log flushes other than
* GFS2_LOG_HEAD_FLUSH_NORMAL may write one or two more log headers.
*/
#define GFS2_LOG_FLUSH_MIN_BLOCKS 4
/**
* gfs2_log_lock - acquire the right to mess with the log manager
* @sdp: the filesystem
@@ -43,7 +50,9 @@ static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
if (++value == sdp->sd_jdesc->jd_blocks) {
value = 0;
}
sdp->sd_log_head = sdp->sd_log_tail = value;
sdp->sd_log_tail = value;
sdp->sd_log_flush_tail = value;
sdp->sd_log_head = value;
}
static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
@@ -64,8 +73,13 @@ static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct);
extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
extern bool gfs2_log_is_empty(struct gfs2_sbd *sdp);
extern void gfs2_log_release_revokes(struct gfs2_sbd *sdp, unsigned int revokes);
extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
extern bool gfs2_log_try_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
unsigned int *extra_revokes);
extern void gfs2_log_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
unsigned int *extra_revokes);
extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
u64 seq, u32 tail, u32 lblock, u32 flags,
int op_flags);
@@ -78,6 +92,6 @@ extern void log_flush_wait(struct gfs2_sbd *sdp);
extern int gfs2_logd(void *data);
extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl);
extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
extern void gfs2_flush_revokes(struct gfs2_sbd *sdp);
#endif /* __LOG_DOT_H__ */

26
fs/gfs2/lops.c
View File

@@ -76,15 +76,20 @@ static void maybe_release_space(struct gfs2_bufdata *bd)
unsigned int index = bd->bd_bh->b_blocknr - gl->gl_name.ln_number;
struct gfs2_bitmap *bi = rgd->rd_bits + index;
rgrp_lock_local(rgd);
if (bi->bi_clone == NULL)
return;
goto out;
if (sdp->sd_args.ar_discard)
gfs2_rgrp_send_discards(sdp, rgd->rd_data0, bd->bd_bh, bi, 1, NULL);
memcpy(bi->bi_clone + bi->bi_offset,
bd->bd_bh->b_data + bi->bi_offset, bi->bi_bytes);
clear_bit(GBF_FULL, &bi->bi_flags);
rgd->rd_free_clone = rgd->rd_free;
BUG_ON(rgd->rd_free_clone < rgd->rd_reserved);
rgd->rd_extfail_pt = rgd->rd_free;
out:
rgrp_unlock_local(rgd);
}
/**
@@ -322,17 +327,18 @@ static struct bio *gfs2_log_get_bio(struct gfs2_sbd *sdp, u64 blkno,
* then add the page segment to that.
*/
void gfs2_log_write(struct gfs2_sbd *sdp, struct page *page,
unsigned size, unsigned offset, u64 blkno)
void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
struct page *page, unsigned size, unsigned offset,
u64 blkno)
{
struct bio *bio;
int ret;
bio = gfs2_log_get_bio(sdp, blkno, &sdp->sd_log_bio, REQ_OP_WRITE,
bio = gfs2_log_get_bio(sdp, blkno, &jd->jd_log_bio, REQ_OP_WRITE,
gfs2_end_log_write, false);
ret = bio_add_page(bio, page, size, offset);
if (ret == 0) {
bio = gfs2_log_get_bio(sdp, blkno, &sdp->sd_log_bio,
bio = gfs2_log_get_bio(sdp, blkno, &jd->jd_log_bio,
REQ_OP_WRITE, gfs2_end_log_write, true);
ret = bio_add_page(bio, page, size, offset);
WARN_ON(ret == 0);
@@ -355,7 +361,8 @@ static void gfs2_log_write_bh(struct gfs2_sbd *sdp, struct buffer_head *bh)
dblock = gfs2_log_bmap(sdp->sd_jdesc, sdp->sd_log_flush_head);
gfs2_log_incr_head(sdp);
gfs2_log_write(sdp, bh->b_page, bh->b_size, bh_offset(bh), dblock);
gfs2_log_write(sdp, sdp->sd_jdesc, bh->b_page, bh->b_size,
bh_offset(bh), dblock);
}
/**
@@ -369,14 +376,14 @@ static void gfs2_log_write_bh(struct gfs2_sbd *sdp, struct buffer_head *bh)
* the page may be freed at any time.
*/
void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page)
static void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page)
{
struct super_block *sb = sdp->sd_vfs;
u64 dblock;
dblock = gfs2_log_bmap(sdp->sd_jdesc, sdp->sd_log_flush_head);
gfs2_log_incr_head(sdp);
gfs2_log_write(sdp, page, sb->s_blocksize, 0, dblock);
gfs2_log_write(sdp, sdp->sd_jdesc, page, sb->s_blocksize, 0, dblock);
}
/**
@@ -845,7 +852,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
struct page *page;
unsigned int length;
gfs2_write_revokes(sdp);
gfs2_flush_revokes(sdp);
if (!sdp->sd_log_num_revoke)
return;
@@ -857,7 +864,6 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
sdp->sd_log_num_revoke--;
if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) {
gfs2_log_write_page(sdp, page);
page = mempool_alloc(gfs2_page_pool, GFP_NOIO);
mh = page_address(page);

23
fs/gfs2/lops.h
View File

@@ -10,37 +10,24 @@
#include <linux/list.h>
#include "incore.h"
#define BUF_OFFSET \
((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
~(sizeof(__be64) - 1))
#define DATABUF_OFFSET \
((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
~(2 * sizeof(__be64) - 1))
extern const struct gfs2_log_operations *gfs2_log_ops[];
extern void gfs2_log_incr_head(struct gfs2_sbd *sdp);
extern u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
extern void gfs2_log_write(struct gfs2_sbd *sdp, struct page *page,
unsigned size, unsigned offset, u64 blkno);
extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
extern void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
struct page *page, unsigned size, unsigned offset,
u64 blkno);
extern void gfs2_log_submit_bio(struct bio **biop, int opf);
extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
struct gfs2_log_header_host *head, bool keep_cache);
static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
{
unsigned int limit;
limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
return limit;
return sdp->sd_ldptrs;
}
static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
{
unsigned int limit;
limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
return limit;
return sdp->sd_ldptrs / 2;
}
static inline void lops_before_commit(struct gfs2_sbd *sdp,

4
fs/gfs2/main.c
View File

@@ -98,7 +98,7 @@ static int __init init_gfs2_fs(void)
error = -ENOMEM;
gfs2_glock_cachep = kmem_cache_create("gfs2_glock",
sizeof(struct gfs2_glock),
0, 0,
0, SLAB_RECLAIM_ACCOUNT,
gfs2_init_glock_once);
if (!gfs2_glock_cachep)
goto fail_cachep1;
@@ -134,7 +134,7 @@ static int __init init_gfs2_fs(void)
gfs2_quotad_cachep = kmem_cache_create("gfs2_quotad",
sizeof(struct gfs2_quota_data),
0, 0, NULL);
0, SLAB_RECLAIM_ACCOUNT, NULL);
if (!gfs2_quotad_cachep)
goto fail_cachep6;

71
fs/gfs2/ops_fstype.c
View File

@@ -136,8 +136,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
init_rwsem(&sdp->sd_log_flush_lock);
atomic_set(&sdp->sd_log_in_flight, 0);
atomic_set(&sdp->sd_reserving_log, 0);
init_waitqueue_head(&sdp->sd_reserving_log_wait);
init_waitqueue_head(&sdp->sd_log_flush_wait);
atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
mutex_init(&sdp->sd_freeze_mutex);
@@ -171,7 +169,8 @@ static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent)
return -EINVAL;
}
if (sb->sb_fs_format != GFS2_FORMAT_FS ||
if (sb->sb_fs_format < GFS2_FS_FORMAT_MIN ||
sb->sb_fs_format > GFS2_FS_FORMAT_MAX ||
sb->sb_multihost_format != GFS2_FORMAT_MULTI) {
fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
return -EINVAL;
@@ -179,7 +178,7 @@ static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent)
if (sb->sb_bsize < 512 || sb->sb_bsize > PAGE_SIZE ||
(sb->sb_bsize & (sb->sb_bsize - 1))) {
pr_warn("Invalid superblock size\n");
pr_warn("Invalid block size\n");
return -EINVAL;
}
@@ -317,6 +316,13 @@ static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent)
sizeof(struct gfs2_meta_header))
* GFS2_NBBY; /* not the rgrp bitmap, subsequent bitmaps only */
/*
* We always keep at least one block reserved for revokes in
* transactions. This greatly simplifies allocating additional
* revoke blocks.
*/
atomic_set(&sdp->sd_log_revokes_available, sdp->sd_ldptrs);
/* Compute maximum reservation required to add a entry to a directory */
hash_blocks = DIV_ROUND_UP(sizeof(u64) * BIT(GFS2_DIR_MAX_DEPTH),
@@ -488,6 +494,19 @@ static int init_sb(struct gfs2_sbd *sdp, int silent)
goto out;
}
switch(sdp->sd_sb.sb_fs_format) {
case GFS2_FS_FORMAT_MAX:
sb->s_xattr = gfs2_xattr_handlers_max;
break;
case GFS2_FS_FORMAT_MIN:
sb->s_xattr = gfs2_xattr_handlers_min;
break;
default:
BUG();
}
/* Set up the buffer cache and SB for real */
if (sdp->sd_sb.sb_bsize < bdev_logical_block_size(sb->s_bdev)) {
ret = -EINVAL;
@@ -1032,13 +1051,14 @@ hostdata_error:
}
if (lm->lm_mount == NULL) {
fs_info(sdp, "Now mounting FS...\n");
fs_info(sdp, "Now mounting FS (format %u)...\n", sdp->sd_sb.sb_fs_format);
complete_all(&sdp->sd_locking_init);
return 0;
}
ret = lm->lm_mount(sdp, table);
if (ret == 0)
fs_info(sdp, "Joined cluster. Now mounting FS...\n");
fs_info(sdp, "Joined cluster. Now mounting FS (format %u)...\n",
sdp->sd_sb.sb_fs_format);
complete_all(&sdp->sd_locking_init);
return ret;
}
@@ -1084,6 +1104,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
int silent = fc->sb_flags & SB_SILENT;
struct gfs2_sbd *sdp;
struct gfs2_holder mount_gh;
struct gfs2_holder freeze_gh;
int error;
sdp = init_sbd(sb);
@@ -1107,7 +1128,6 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
sb->s_op = &gfs2_super_ops;
sb->s_d_op = &gfs2_dops;
sb->s_export_op = &gfs2_export_ops;
sb->s_xattr = gfs2_xattr_handlers;
sb->s_qcop = &gfs2_quotactl_ops;
sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
@@ -1156,6 +1176,10 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
if (error)
goto fail_locking;
/* Turn rgrplvb on by default if fs format is recent enough */
if (!sdp->sd_args.ar_got_rgrplvb && sdp->sd_sb.sb_fs_format > 1801)
sdp->sd_args.ar_rgrplvb = 1;
error = wait_on_journal(sdp);
if (error)
goto fail_sb;
@@ -1195,25 +1219,18 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
goto fail_per_node;
}
if (sb_rdonly(sb)) {
struct gfs2_holder freeze_gh;
error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
if (error)
goto fail_per_node;
error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
LM_FLAG_NOEXP | GL_EXACT,
&freeze_gh);
if (error) {
fs_err(sdp, "can't make FS RO: %d\n", error);
goto fail_per_node;
}
gfs2_glock_dq_uninit(&freeze_gh);
} else {
if (!sb_rdonly(sb))
error = gfs2_make_fs_rw(sdp);
if (error) {
fs_err(sdp, "can't make FS RW: %d\n", error);
goto fail_per_node;
}
}
gfs2_freeze_unlock(&freeze_gh);
if (error) {
fs_err(sdp, "can't make FS RW: %d\n", error);
goto fail_per_node;
}
gfs2_glock_dq_uninit(&mount_gh);
gfs2_online_uevent(sdp);
return 0;
@@ -1456,6 +1473,7 @@ static int gfs2_parse_param(struct fs_context *fc, struct fs_parameter *param)
break;
case Opt_rgrplvb:
args->ar_rgrplvb = result.boolean;
args->ar_got_rgrplvb = 1;
break;
case Opt_loccookie:
args->ar_loccookie = result.boolean;
@@ -1514,6 +1532,12 @@ static int gfs2_reconfigure(struct fs_context *fc)
fc->sb_flags |= SB_RDONLY;
if ((sb->s_flags ^ fc->sb_flags) & SB_RDONLY) {
struct gfs2_holder freeze_gh;
error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
if (error)
return -EINVAL;
if (fc->sb_flags & SB_RDONLY) {
error = gfs2_make_fs_ro(sdp);
if (error)
@@ -1523,6 +1547,7 @@ static int gfs2_reconfigure(struct fs_context *fc)
if (error)
errorfc(fc, "unable to remount read-write");
}
gfs2_freeze_unlock(&freeze_gh);
}
sdp->sd_args = *newargs;

14
fs/gfs2/recovery.c
View File

@@ -470,9 +470,7 @@ void gfs2_recover_func(struct work_struct *work)
/* Acquire a shared hold on the freeze lock */
error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
LM_FLAG_NOEXP | LM_FLAG_PRIORITY |
GL_EXACT, &thaw_gh);
error = gfs2_freeze_lock(sdp, &thaw_gh, LM_FLAG_PRIORITY);
if (error)
goto fail_gunlock_ji;
@@ -507,22 +505,24 @@ void gfs2_recover_func(struct work_struct *work)
/* We take the sd_log_flush_lock here primarily to prevent log
* flushes and simultaneous journal replays from stomping on
* each other wrt sd_log_bio. */
* each other wrt jd_log_bio. */
down_read(&sdp->sd_log_flush_lock);
for (pass = 0; pass < 2; pass++) {
lops_before_scan(jd, &head, pass);
error = foreach_descriptor(jd, head.lh_tail,
head.lh_blkno, pass);
lops_after_scan(jd, error, pass);
if (error)
if (error) {
up_read(&sdp->sd_log_flush_lock);
goto fail_gunlock_thaw;
}
}
recover_local_statfs(jd, &head);
clean_journal(jd, &head);
up_read(&sdp->sd_log_flush_lock);
gfs2_glock_dq_uninit(&thaw_gh);
gfs2_freeze_unlock(&thaw_gh);
t_rep = ktime_get();
fs_info(sdp, "jid=%u: Journal replayed in %lldms [jlck:%lldms, "
"jhead:%lldms, tlck:%lldms, replay:%lldms]\n",
@@ -544,7 +544,7 @@ void gfs2_recover_func(struct work_struct *work)
goto done;
fail_gunlock_thaw:
gfs2_glock_dq_uninit(&thaw_gh);
gfs2_freeze_unlock(&thaw_gh);
fail_gunlock_ji:
if (jlocked) {
gfs2_glock_dq_uninit(&ji_gh);

442
fs/gfs2/rgrp.c
View File

@@ -36,6 +36,24 @@
#define BFITNOENT ((u32)~0)
#define NO_BLOCK ((u64)~0)
struct gfs2_rbm {
struct gfs2_rgrpd *rgd;
u32 offset; /* The offset is bitmap relative */
int bii; /* Bitmap index */
};
static inline struct gfs2_bitmap *rbm_bi(const struct gfs2_rbm *rbm)
{
return rbm->rgd->rd_bits + rbm->bii;
}
static inline u64 gfs2_rbm_to_block(const struct gfs2_rbm *rbm)
{
BUG_ON(rbm->offset >= rbm->rgd->rd_data);
return rbm->rgd->rd_data0 + (rbm_bi(rbm)->bi_start * GFS2_NBBY) +
rbm->offset;
}
/*
* These routines are used by the resource group routines (rgrp.c)
* to keep track of block allocation. Each block is represented by two
@@ -61,7 +79,7 @@ static const char valid_change[16] = {
};
static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
const struct gfs2_inode *ip, bool nowrap);
struct gfs2_blkreserv *rs, bool nowrap);
/**
@@ -175,7 +193,7 @@ static inline u64 gfs2_bit_search(const __le64 *ptr, u64 mask, u8 state)
/**
* rs_cmp - multi-block reservation range compare
* @blk: absolute file system block number of the new reservation
* @start: start of the new reservation
* @len: number of blocks in the new reservation
* @rs: existing reservation to compare against
*
@@ -183,13 +201,11 @@ static inline u64 gfs2_bit_search(const __le64 *ptr, u64 mask, u8 state)
* -1 if the block range is before the start of the reservation
* 0 if the block range overlaps with the reservation
*/
static inline int rs_cmp(u64 blk, u32 len, struct gfs2_blkreserv *rs)
static inline int rs_cmp(u64 start, u32 len, struct gfs2_blkreserv *rs)
{
u64 startblk = gfs2_rbm_to_block(&rs->rs_rbm);
if (blk >= startblk + rs->rs_free)
if (start >= rs->rs_start + rs->rs_requested)
return 1;
if (blk + len - 1 < startblk)
if (rs->rs_start >= start + len)
return -1;
return 0;
}
@@ -277,29 +293,38 @@ static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
}
/**
* gfs2_rbm_incr - increment an rbm structure
* gfs2_rbm_add - add a number of blocks to an rbm
* @rbm: The rbm with rgd already set correctly
* @blocks: The number of blocks to add to rpm
*
* This function takes an existing rbm structure and increments it to the next
* viable block offset.
*
* Returns: If incrementing the offset would cause the rbm to go past the
* end of the rgrp, true is returned, otherwise false.
* This function takes an existing rbm structure and adds a number of blocks to
* it.
*
* Returns: True if the new rbm would point past the end of the rgrp.
*/
static bool gfs2_rbm_incr(struct gfs2_rbm *rbm)
static bool gfs2_rbm_add(struct gfs2_rbm *rbm, u32 blocks)
{
if (rbm->offset + 1 < rbm_bi(rbm)->bi_blocks) { /* in the same bitmap */
rbm->offset++;
struct gfs2_rgrpd *rgd = rbm->rgd;
struct gfs2_bitmap *bi = rgd->rd_bits + rbm->bii;
if (rbm->offset + blocks < bi->bi_blocks) {
rbm->offset += blocks;
return false;
}
if (rbm->bii == rbm->rgd->rd_length - 1) /* at the last bitmap */
return true;
blocks -= bi->bi_blocks - rbm->offset;
rbm->offset = 0;
rbm->bii++;
return false;
for(;;) {
bi++;
if (bi == rgd->rd_bits + rgd->rd_length)
return true;
if (blocks < bi->bi_blocks) {
rbm->offset = blocks;
rbm->bii = bi - rgd->rd_bits;
return false;
}
blocks -= bi->bi_blocks;
}
}
/**
@@ -308,7 +333,8 @@ static bool gfs2_rbm_incr(struct gfs2_rbm *rbm)
* @n_unaligned: Number of unaligned blocks to check
* @len: Decremented for each block found (terminate on zero)
*
* Returns: true if a non-free block is encountered
* Returns: true if a non-free block is encountered or the end of the resource
* group is reached.
*/
static bool gfs2_unaligned_extlen(struct gfs2_rbm *rbm, u32 n_unaligned, u32 *len)
@@ -323,7 +349,7 @@ static bool gfs2_unaligned_extlen(struct gfs2_rbm *rbm, u32 n_unaligned, u32 *le
(*len)--;
if (*len == 0)
return true;
if (gfs2_rbm_incr(rbm))
if (gfs2_rbm_add(rbm, 1))
return true;
}
@@ -595,10 +621,11 @@ static void dump_rs(struct seq_file *seq, const struct gfs2_blkreserv *rs,
{
struct gfs2_inode *ip = container_of(rs, struct gfs2_inode, i_res);
gfs2_print_dbg(seq, "%s B: n:%llu s:%llu b:%u f:%u\n", fs_id_buf,
gfs2_print_dbg(seq, "%s B: n:%llu s:%llu f:%u\n",
fs_id_buf,
(unsigned long long)ip->i_no_addr,
(unsigned long long)gfs2_rbm_to_block(&rs->rs_rbm),
rs->rs_rbm.offset, rs->rs_free);
(unsigned long long)rs->rs_start,
rs->rs_requested);
}
/**
@@ -613,33 +640,22 @@ static void __rs_deltree(struct gfs2_blkreserv *rs)
if (!gfs2_rs_active(rs))
return;
rgd = rs->rs_rbm.rgd;
rgd = rs->rs_rgd;
trace_gfs2_rs(rs, TRACE_RS_TREEDEL);
rb_erase(&rs->rs_node, &rgd->rd_rstree);
RB_CLEAR_NODE(&rs->rs_node);
if (rs->rs_free) {
u64 last_block = gfs2_rbm_to_block(&rs->rs_rbm) +
rs->rs_free - 1;
struct gfs2_rbm last_rbm = { .rgd = rs->rs_rbm.rgd, };
struct gfs2_bitmap *start, *last;
if (rs->rs_requested) {
/* return requested blocks to the rgrp */
BUG_ON(rs->rs_rgd->rd_requested < rs->rs_requested);
rs->rs_rgd->rd_requested -= rs->rs_requested;
/* return reserved blocks to the rgrp */
BUG_ON(rs->rs_rbm.rgd->rd_reserved < rs->rs_free);
rs->rs_rbm.rgd->rd_reserved -= rs->rs_free;
/* The rgrp extent failure point is likely not to increase;
it will only do so if the freed blocks are somehow
contiguous with a span of free blocks that follows. Still,
it will force the number to be recalculated later. */
rgd->rd_extfail_pt += rs->rs_free;
rs->rs_free = 0;
if (gfs2_rbm_from_block(&last_rbm, last_block))
return;
start = rbm_bi(&rs->rs_rbm);
last = rbm_bi(&last_rbm);
do
clear_bit(GBF_FULL, &start->bi_flags);
while (start++ != last);
rgd->rd_extfail_pt += rs->rs_requested;
rs->rs_requested = 0;
}
}
@@ -652,11 +668,11 @@ void gfs2_rs_deltree(struct gfs2_blkreserv *rs)
{
struct gfs2_rgrpd *rgd;
rgd = rs->rs_rbm.rgd;
rgd = rs->rs_rgd;
if (rgd) {
spin_lock(&rgd->rd_rsspin);
__rs_deltree(rs);
BUG_ON(rs->rs_free);
BUG_ON(rs->rs_requested);
spin_unlock(&rgd->rd_rsspin);
}
}
@@ -904,6 +920,7 @@ static int read_rindex_entry(struct gfs2_inode *ip)
rgd->rd_data = be32_to_cpu(buf.ri_data);
rgd->rd_bitbytes = be32_to_cpu(buf.ri_bitbytes);
spin_lock_init(&rgd->rd_rsspin);
mutex_init(&rgd->rd_mutex);
error = compute_bitstructs(rgd);
if (error)
@@ -1149,6 +1166,23 @@ static u32 count_unlinked(struct gfs2_rgrpd *rgd)
return count;
}
static void rgrp_set_bitmap_flags(struct gfs2_rgrpd *rgd)
{
struct gfs2_bitmap *bi;
int x;
if (rgd->rd_free) {
for (x = 0; x < rgd->rd_length; x++) {
bi = rgd->rd_bits + x;
clear_bit(GBF_FULL, &bi->bi_flags);
}
} else {
for (x = 0; x < rgd->rd_length; x++) {
bi = rgd->rd_bits + x;
set_bit(GBF_FULL, &bi->bi_flags);
}
}
}
/**
* gfs2_rgrp_bh_get - Read in a RG's header and bitmaps
@@ -1192,11 +1226,11 @@ static int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
}
if (!(rgd->rd_flags & GFS2_RDF_UPTODATE)) {
for (x = 0; x < length; x++)
clear_bit(GBF_FULL, &rgd->rd_bits[x].bi_flags);
gfs2_rgrp_in(rgd, (rgd->rd_bits[0].bi_bh)->b_data);
rgrp_set_bitmap_flags(rgd);
rgd->rd_flags |= (GFS2_RDF_UPTODATE | GFS2_RDF_CHECK);
rgd->rd_free_clone = rgd->rd_free;
BUG_ON(rgd->rd_reserved);
/* max out the rgrp allocation failure point */
rgd->rd_extfail_pt = rgd->rd_free;
}
@@ -1244,7 +1278,11 @@ static int update_rgrp_lvb(struct gfs2_rgrpd *rgd)
if (rgd->rd_rgl->rl_unlinked == 0)
rgd->rd_flags &= ~GFS2_RDF_CHECK;
rgd->rd_free = be32_to_cpu(rgd->rd_rgl->rl_free);
rgrp_set_bitmap_flags(rgd);
rgd->rd_free_clone = rgd->rd_free;
BUG_ON(rgd->rd_reserved);
/* max out the rgrp allocation failure point */
rgd->rd_extfail_pt = rgd->rd_free;
rgd->rd_dinodes = be32_to_cpu(rgd->rd_rgl->rl_dinodes);
rgd->rd_igeneration = be64_to_cpu(rgd->rd_rgl->rl_igeneration);
return 0;
@@ -1404,7 +1442,8 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
while (1) {
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (ret)
goto out;
@@ -1412,9 +1451,11 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
/* Trim each bitmap in the rgrp */
for (x = 0; x < rgd->rd_length; x++) {
struct gfs2_bitmap *bi = rgd->rd_bits + x;
rgrp_lock_local(rgd);
ret = gfs2_rgrp_send_discards(sdp,
rgd->rd_data0, NULL, bi, minlen,
&amt);
rgrp_unlock_local(rgd);
if (ret) {
gfs2_glock_dq_uninit(&gh);
goto out;
@@ -1426,9 +1467,11 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
ret = gfs2_trans_begin(sdp, RES_RG_HDR, 0);
if (ret == 0) {
bh = rgd->rd_bits[0].bi_bh;
rgrp_lock_local(rgd);
rgd->rd_flags |= GFS2_RGF_TRIMMED;
gfs2_trans_add_meta(rgd->rd_gl, bh);
gfs2_rgrp_out(rgd, bh->b_data);
rgrp_unlock_local(rgd);
gfs2_trans_end(sdp);
}
}
@@ -1458,8 +1501,7 @@ static void rs_insert(struct gfs2_inode *ip)
struct rb_node **newn, *parent = NULL;
int rc;
struct gfs2_blkreserv *rs = &ip->i_res;
struct gfs2_rgrpd *rgd = rs->rs_rbm.rgd;
u64 fsblock = gfs2_rbm_to_block(&rs->rs_rbm);
struct gfs2_rgrpd *rgd = rs->rs_rgd;
BUG_ON(gfs2_rs_active(rs));
@@ -1470,7 +1512,7 @@ static void rs_insert(struct gfs2_inode *ip)
rb_entry(*newn, struct gfs2_blkreserv, rs_node);
parent = *newn;
rc = rs_cmp(fsblock, rs->rs_free, cur);
rc = rs_cmp(rs->rs_start, rs->rs_requested, cur);
if (rc > 0)
newn = &((*newn)->rb_right);
else if (rc < 0)
@@ -1486,7 +1528,7 @@ static void rs_insert(struct gfs2_inode *ip)
rb_insert_color(&rs->rs_node, &rgd->rd_rstree);
/* Do our rgrp accounting for the reservation */
rgd->rd_reserved += rs->rs_free; /* blocks reserved */
rgd->rd_requested += rs->rs_requested; /* blocks requested */
spin_unlock(&rgd->rd_rsspin);
trace_gfs2_rs(rs, TRACE_RS_INSERT);
}
@@ -1507,9 +1549,9 @@ static inline u32 rgd_free(struct gfs2_rgrpd *rgd, struct gfs2_blkreserv *rs)
{
u32 tot_reserved, tot_free;
if (WARN_ON_ONCE(rgd->rd_reserved < rs->rs_free))
if (WARN_ON_ONCE(rgd->rd_requested < rs->rs_requested))
return 0;
tot_reserved = rgd->rd_reserved - rs->rs_free;
tot_reserved = rgd->rd_requested - rs->rs_requested;
if (rgd->rd_free_clone < tot_reserved)
tot_reserved = 0;
@@ -1534,17 +1576,26 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
u64 goal;
struct gfs2_blkreserv *rs = &ip->i_res;
u32 extlen;
u32 free_blocks = rgd_free(rgd, rs);
u32 free_blocks, blocks_available;
int ret;
struct inode *inode = &ip->i_inode;
spin_lock(&rgd->rd_rsspin);
free_blocks = rgd_free(rgd, rs);
if (rgd->rd_free_clone < rgd->rd_requested)
free_blocks = 0;
blocks_available = rgd->rd_free_clone - rgd->rd_reserved;
if (rgd == rs->rs_rgd)
blocks_available += rs->rs_reserved;
spin_unlock(&rgd->rd_rsspin);
if (S_ISDIR(inode->i_mode))
extlen = 1;
else {
extlen = max_t(u32, atomic_read(&ip->i_sizehint), ap->target);
extlen = clamp(extlen, (u32)RGRP_RSRV_MINBLKS, free_blocks);
}
if ((rgd->rd_free_clone < rgd->rd_reserved) || (free_blocks < extlen))
if (free_blocks < extlen || blocks_available < extlen)
return;
/* Find bitmap block that contains bits for goal block */
@@ -1556,10 +1607,10 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
if (WARN_ON(gfs2_rbm_from_block(&rbm, goal)))
return;
ret = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, &extlen, ip, true);
ret = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, &extlen, &ip->i_res, true);
if (ret == 0) {
rs->rs_rbm = rbm;
rs->rs_free = extlen;
rs->rs_start = gfs2_rbm_to_block(&rbm);
rs->rs_requested = extlen;
rs_insert(ip);
} else {
if (goal == rgd->rd_last_alloc + rgd->rd_data0)
@@ -1572,7 +1623,7 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
* @rgd: The resource group
* @block: The starting block
* @length: The required length
* @ip: Ignore any reservations for this inode
* @ignore_rs: Reservation to ignore
*
* If the block does not appear in any reservation, then return the
* block number unchanged. If it does appear in the reservation, then
@@ -1582,7 +1633,7 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
static u64 gfs2_next_unreserved_block(struct gfs2_rgrpd *rgd, u64 block,
u32 length,
const struct gfs2_inode *ip)
struct gfs2_blkreserv *ignore_rs)
{
struct gfs2_blkreserv *rs;
struct rb_node *n;
@@ -1602,8 +1653,8 @@ static u64 gfs2_next_unreserved_block(struct gfs2_rgrpd *rgd, u64 block,
}
if (n) {
while ((rs_cmp(block, length, rs) == 0) && (&ip->i_res != rs)) {
block = gfs2_rbm_to_block(&rs->rs_rbm) + rs->rs_free;
while (rs_cmp(block, length, rs) == 0 && rs != ignore_rs) {
block = rs->rs_start + rs->rs_requested;
n = n->rb_right;
if (n == NULL)
break;
@@ -1618,7 +1669,7 @@ static u64 gfs2_next_unreserved_block(struct gfs2_rgrpd *rgd, u64 block,
/**
* gfs2_reservation_check_and_update - Check for reservations during block alloc
* @rbm: The current position in the resource group
* @ip: The inode for which we are searching for blocks
* @rs: Our own reservation
* @minext: The minimum extent length
* @maxext: A pointer to the maximum extent structure
*
@@ -1632,20 +1683,19 @@ static u64 gfs2_next_unreserved_block(struct gfs2_rgrpd *rgd, u64 block,
*/
static int gfs2_reservation_check_and_update(struct gfs2_rbm *rbm,
const struct gfs2_inode *ip,
struct gfs2_blkreserv *rs,
u32 minext,
struct gfs2_extent *maxext)
{
u64 block = gfs2_rbm_to_block(rbm);
u32 extlen = 1;
u64 nblock;
int ret;
/*
* If we have a minimum extent length, then skip over any extent
* which is less than the min extent length in size.
*/
if (minext) {
if (minext > 1) {
extlen = gfs2_free_extlen(rbm, minext);
if (extlen <= maxext->len)
goto fail;
@@ -1655,7 +1705,7 @@ static int gfs2_reservation_check_and_update(struct gfs2_rbm *rbm,
* Check the extent which has been found against the reservations
* and skip if parts of it are already reserved
*/
nblock = gfs2_next_unreserved_block(rbm->rgd, block, extlen, ip);
nblock = gfs2_next_unreserved_block(rbm->rgd, block, extlen, rs);
if (nblock == block) {
if (!minext || extlen >= minext)
return 0;
@@ -1664,12 +1714,15 @@ static int gfs2_reservation_check_and_update(struct gfs2_rbm *rbm,
maxext->len = extlen;
maxext->rbm = *rbm;
}
fail:
nblock = block + extlen;
} else {
u64 len = nblock - block;
if (len >= (u64)1 << 32)
return -E2BIG;
extlen = len;
}
ret = gfs2_rbm_from_block(rbm, nblock);
if (ret < 0)
return ret;
fail:
if (gfs2_rbm_add(rbm, extlen))
return -E2BIG;
return 1;
}
@@ -1677,9 +1730,9 @@ fail:
* gfs2_rbm_find - Look for blocks of a particular state
* @rbm: Value/result starting position and final position
* @state: The state which we want to find
* @minext: Pointer to the requested extent length (NULL for a single block)
* @minext: Pointer to the requested extent length
* This is updated to be the actual reservation size.
* @ip: If set, check for reservations
* @rs: Our own reservation (NULL to skip checking for reservations)
* @nowrap: Stop looking at the end of the rgrp, rather than wrapping
* around until we've reached the starting point.
*
@@ -1693,7 +1746,7 @@ fail:
*/
static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
const struct gfs2_inode *ip, bool nowrap)
struct gfs2_blkreserv *rs, bool nowrap)
{
bool scan_from_start = rbm->bii == 0 && rbm->offset == 0;
struct buffer_head *bh;
@@ -1714,8 +1767,7 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
while(1) {
bi = rbm_bi(rbm);
if ((ip == NULL || !gfs2_rs_active(&ip->i_res)) &&
test_bit(GBF_FULL, &bi->bi_flags) &&
if (test_bit(GBF_FULL, &bi->bi_flags) &&
(state == GFS2_BLKST_FREE))
goto next_bitmap;
@@ -1731,11 +1783,10 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 *minext,
goto next_bitmap;
}
rbm->offset = offset;
if (ip == NULL)
if (!rs)
return 0;
ret = gfs2_reservation_check_and_update(rbm, ip,
minext ? *minext : 0,
ret = gfs2_reservation_check_and_update(rbm, rs, *minext,
&maxext);
if (ret == 0)
return 0;
@@ -1767,7 +1818,7 @@ next_iter:
break;
}
if (minext == NULL || state != GFS2_BLKST_FREE)
if (state != GFS2_BLKST_FREE)
return -ENOSPC;
/* If the extent was too small, and it's smaller than the smallest
@@ -1775,7 +1826,7 @@ next_iter:
useless to search this rgrp again for this amount or more. */
if (wrapped && (scan_from_start || rbm->bii > last_bii) &&
*minext < rbm->rgd->rd_extfail_pt)
rbm->rgd->rd_extfail_pt = *minext;
rbm->rgd->rd_extfail_pt = *minext - 1;
/* If the maximum extent we found is big enough to fulfill the
minimum requirements, use it anyway. */
@@ -1938,7 +1989,7 @@ static bool gfs2_rgrp_used_recently(const struct gfs2_blkreserv *rs,
u64 tdiff;
tdiff = ktime_to_ns(ktime_sub(ktime_get_real(),
rs->rs_rbm.rgd->rd_gl->gl_dstamp));
rs->rs_rgd->rd_gl->gl_dstamp));
return tdiff > (msecs * 1000 * 1000);
}
@@ -1993,8 +2044,7 @@ static inline int fast_to_acquire(struct gfs2_rgrpd *rgd)
* We try our best to find an rgrp that has at least ap->target blocks
* available. After a couple of passes (loops == 2), the prospects of finding
* such an rgrp diminish. At this stage, we return the first rgrp that has
* at least ap->min_target blocks available. Either way, we set ap->allowed to
* the number of blocks available in the chosen rgrp.
* at least ap->min_target blocks available.
*
* Returns: 0 on success,
* -ENOMEM if a suitable rgrp can't be found
@@ -2006,56 +2056,64 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, struct gfs2_alloc_parms *ap)
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_rgrpd *begin = NULL;
struct gfs2_blkreserv *rs = &ip->i_res;
int error = 0, rg_locked, flags = 0;
int error = 0, flags = LM_FLAG_NODE_SCOPE;
bool rg_locked;
u64 last_unlinked = NO_BLOCK;
u32 target = ap->target;
int loops = 0;
u32 free_blocks, skip = 0;
u32 free_blocks, blocks_available, skip = 0;
BUG_ON(rs->rs_reserved);
if (sdp->sd_args.ar_rgrplvb)
flags |= GL_SKIP;
if (gfs2_assert_warn(sdp, ap->target))
if (gfs2_assert_warn(sdp, target))
return -EINVAL;
if (gfs2_rs_active(rs)) {
begin = rs->rs_rbm.rgd;
} else if (rs->rs_rbm.rgd &&
rgrp_contains_block(rs->rs_rbm.rgd, ip->i_goal)) {
begin = rs->rs_rbm.rgd;
begin = rs->rs_rgd;
} else if (rs->rs_rgd &&
rgrp_contains_block(rs->rs_rgd, ip->i_goal)) {
begin = rs->rs_rgd;
} else {
check_and_update_goal(ip);
rs->rs_rbm.rgd = begin = gfs2_blk2rgrpd(sdp, ip->i_goal, 1);
rs->rs_rgd = begin = gfs2_blk2rgrpd(sdp, ip->i_goal, 1);
}
if (S_ISDIR(ip->i_inode.i_mode) && (ap->aflags & GFS2_AF_ORLOV))
skip = gfs2_orlov_skip(ip);
if (rs->rs_rbm.rgd == NULL)
if (rs->rs_rgd == NULL)
return -EBADSLT;
while (loops < 3) {
rg_locked = 1;
struct gfs2_rgrpd *rgd;
if (!gfs2_glock_is_locked_by_me(rs->rs_rbm.rgd->rd_gl)) {
rg_locked = 0;
rg_locked = gfs2_glock_is_locked_by_me(rs->rs_rgd->rd_gl);
if (rg_locked) {
rgrp_lock_local(rs->rs_rgd);
} else {
if (skip && skip--)
goto next_rgrp;
if (!gfs2_rs_active(rs)) {
if (loops == 0 &&
!fast_to_acquire(rs->rs_rbm.rgd))
!fast_to_acquire(rs->rs_rgd))
goto next_rgrp;
if ((loops < 2) &&
gfs2_rgrp_used_recently(rs, 1000) &&
gfs2_rgrp_congested(rs->rs_rbm.rgd, loops))
gfs2_rgrp_congested(rs->rs_rgd, loops))
goto next_rgrp;
}
error = gfs2_glock_nq_init(rs->rs_rbm.rgd->rd_gl,
error = gfs2_glock_nq_init(rs->rs_rgd->rd_gl,
LM_ST_EXCLUSIVE, flags,
&ip->i_rgd_gh);
if (unlikely(error))
return error;
rgrp_lock_local(rs->rs_rgd);
if (!gfs2_rs_active(rs) && (loops < 2) &&
gfs2_rgrp_congested(rs->rs_rbm.rgd, loops))
gfs2_rgrp_congested(rs->rs_rgd, loops))
goto skip_rgrp;
if (sdp->sd_args.ar_rgrplvb) {
error = update_rgrp_lvb(rs->rs_rbm.rgd);
error = update_rgrp_lvb(rs->rs_rgd);
if (unlikely(error)) {
rgrp_unlock_local(rs->rs_rgd);
gfs2_glock_dq_uninit(&ip->i_rgd_gh);
return error;
}
@@ -2063,36 +2121,46 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, struct gfs2_alloc_parms *ap)
}
/* Skip unusable resource groups */
if ((rs->rs_rbm.rgd->rd_flags & (GFS2_RGF_NOALLOC |
if ((rs->rs_rgd->rd_flags & (GFS2_RGF_NOALLOC |
GFS2_RDF_ERROR)) ||
(loops == 0 && ap->target > rs->rs_rbm.rgd->rd_extfail_pt))
(loops == 0 && target > rs->rs_rgd->rd_extfail_pt))
goto skip_rgrp;
if (sdp->sd_args.ar_rgrplvb)
gfs2_rgrp_bh_get(rs->rs_rbm.rgd);
gfs2_rgrp_bh_get(rs->rs_rgd);
/* Get a reservation if we don't already have one */
if (!gfs2_rs_active(rs))
rg_mblk_search(rs->rs_rbm.rgd, ip, ap);
rg_mblk_search(rs->rs_rgd, ip, ap);
/* Skip rgrps when we can't get a reservation on first pass */
if (!gfs2_rs_active(rs) && (loops < 1))
goto check_rgrp;
/* If rgrp has enough free space, use it */
free_blocks = rgd_free(rs->rs_rbm.rgd, rs);
if (free_blocks >= ap->target ||
(loops == 2 && ap->min_target &&
free_blocks >= ap->min_target)) {
ap->allowed = free_blocks;
return 0;
rgd = rs->rs_rgd;
spin_lock(&rgd->rd_rsspin);
free_blocks = rgd_free(rgd, rs);
blocks_available = rgd->rd_free_clone - rgd->rd_reserved;
if (free_blocks < target || blocks_available < target) {
spin_unlock(&rgd->rd_rsspin);
goto check_rgrp;
}
rs->rs_reserved = ap->target;
if (rs->rs_reserved > blocks_available)
rs->rs_reserved = blocks_available;
rgd->rd_reserved += rs->rs_reserved;
spin_unlock(&rgd->rd_rsspin);
rgrp_unlock_local(rs->rs_rgd);
return 0;
check_rgrp:
/* Check for unlinked inodes which can be reclaimed */
if (rs->rs_rbm.rgd->rd_flags & GFS2_RDF_CHECK)
try_rgrp_unlink(rs->rs_rbm.rgd, &last_unlinked,
if (rs->rs_rgd->rd_flags & GFS2_RDF_CHECK)
try_rgrp_unlink(rs->rs_rgd, &last_unlinked,
ip->i_no_addr);
skip_rgrp:
rgrp_unlock_local(rs->rs_rgd);
/* Drop reservation, if we couldn't use reserved rgrp */
if (gfs2_rs_active(rs))
gfs2_rs_deltree(rs);
@@ -2102,7 +2170,7 @@ skip_rgrp:
gfs2_glock_dq_uninit(&ip->i_rgd_gh);
next_rgrp:
/* Find the next rgrp, and continue looking */
if (gfs2_select_rgrp(&rs->rs_rbm.rgd, begin))
if (gfs2_select_rgrp(&rs->rs_rgd, begin))
continue;
if (skip)
continue;
@@ -2119,9 +2187,12 @@ next_rgrp:
return error;
}
/* Flushing the log may release space */
if (loops == 2)
if (loops == 2) {
if (ap->min_target)
target = ap->min_target;
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_INPLACE_RESERVE);
}
}
return -ENOSPC;
@@ -2136,6 +2207,17 @@ next_rgrp:
void gfs2_inplace_release(struct gfs2_inode *ip)
{
struct gfs2_blkreserv *rs = &ip->i_res;
if (rs->rs_reserved) {
struct gfs2_rgrpd *rgd = rs->rs_rgd;
spin_lock(&rgd->rd_rsspin);
BUG_ON(rgd->rd_reserved < rs->rs_reserved);
rgd->rd_reserved -= rs->rs_reserved;
spin_unlock(&rgd->rd_rsspin);
rs->rs_reserved = 0;
}
if (gfs2_holder_initialized(&ip->i_rgd_gh))
gfs2_glock_dq_uninit(&ip->i_rgd_gh);
}
@@ -2205,7 +2287,7 @@ static void rgblk_free(struct gfs2_sbd *sdp, struct gfs2_rgrpd *rgd,
bi_prev = bi;
}
gfs2_setbit(&rbm, false, new_state);
gfs2_rbm_incr(&rbm);
gfs2_rbm_add(&rbm, 1);
}
}
@@ -2223,11 +2305,12 @@ void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
struct gfs2_blkreserv *trs;
const struct rb_node *n;
gfs2_print_dbg(seq, "%s R: n:%llu f:%02x b:%u/%u i:%u r:%u e:%u\n",
spin_lock(&rgd->rd_rsspin);
gfs2_print_dbg(seq, "%s R: n:%llu f:%02x b:%u/%u i:%u q:%u r:%u e:%u\n",
fs_id_buf,
(unsigned long long)rgd->rd_addr, rgd->rd_flags,
rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes,
rgd->rd_reserved, rgd->rd_extfail_pt);
rgd->rd_requested, rgd->rd_reserved, rgd->rd_extfail_pt);
if (rgd->rd_sbd->sd_args.ar_rgrplvb) {
struct gfs2_rgrp_lvb *rgl = rgd->rd_rgl;
@@ -2236,7 +2319,6 @@ void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
be32_to_cpu(rgl->rl_free),
be32_to_cpu(rgl->rl_dinodes));
}
spin_lock(&rgd->rd_rsspin);
for (n = rb_first(&rgd->rd_rstree); n; n = rb_next(&trs->rs_node)) {
trs = rb_entry(n, struct gfs2_blkreserv, rs_node);
dump_rs(seq, trs, fs_id_buf);
@@ -2273,29 +2355,29 @@ static void gfs2_adjust_reservation(struct gfs2_inode *ip,
{
struct gfs2_blkreserv *rs = &ip->i_res;
struct gfs2_rgrpd *rgd = rbm->rgd;
unsigned rlen;
u64 block;
int ret;
spin_lock(&rgd->rd_rsspin);
BUG_ON(rs->rs_reserved < len);
rs->rs_reserved -= len;
if (gfs2_rs_active(rs)) {
if (gfs2_rbm_eq(&rs->rs_rbm, rbm)) {
block = gfs2_rbm_to_block(rbm);
ret = gfs2_rbm_from_block(&rs->rs_rbm, block + len);
rlen = min(rs->rs_free, len);
rs->rs_free -= rlen;
rgd->rd_reserved -= rlen;
u64 start = gfs2_rbm_to_block(rbm);
if (rs->rs_start == start) {
unsigned int rlen;
rs->rs_start += len;
rlen = min(rs->rs_requested, len);
rs->rs_requested -= rlen;
rgd->rd_requested -= rlen;
trace_gfs2_rs(rs, TRACE_RS_CLAIM);
if (rs->rs_free && !ret)
goto out;
if (rs->rs_start < rgd->rd_data0 + rgd->rd_data &&
rs->rs_requested)
return;
/* We used up our block reservation, so we should
reserve more blocks next time. */
atomic_add(RGRP_RSRV_ADDBLKS, &ip->i_sizehint);
}
__rs_deltree(rs);
}
out:
spin_unlock(&rgd->rd_rsspin);
}
/**
@@ -2315,15 +2397,13 @@ static void gfs2_set_alloc_start(struct gfs2_rbm *rbm,
u64 goal;
if (gfs2_rs_active(&ip->i_res)) {
*rbm = ip->i_res.rs_rbm;
return;
goal = ip->i_res.rs_start;
} else {
if (!dinode && rgrp_contains_block(rbm->rgd, ip->i_goal))
goal = ip->i_goal;
else
goal = rbm->rgd->rd_last_alloc + rbm->rgd->rd_data0;
}
if (!dinode && rgrp_contains_block(rbm->rgd, ip->i_goal))
goal = ip->i_goal;
else
goal = rbm->rgd->rd_last_alloc + rbm->rgd->rd_data0;
if (WARN_ON_ONCE(gfs2_rbm_from_block(rbm, goal))) {
rbm->bii = 0;
rbm->offset = 0;
@@ -2346,17 +2426,21 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct buffer_head *dibh;
struct gfs2_rbm rbm = { .rgd = ip->i_res.rs_rbm.rgd, };
unsigned int ndata;
struct gfs2_rbm rbm = { .rgd = ip->i_res.rs_rgd, };
u64 block; /* block, within the file system scope */
int error;
u32 minext = 1;
int error = -ENOSPC;
gfs2_set_alloc_start(&rbm, ip, dinode);
error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, NULL, ip, false);
BUG_ON(ip->i_res.rs_reserved < *nblocks);
rgrp_lock_local(rbm.rgd);
if (gfs2_rs_active(&ip->i_res)) {
gfs2_set_alloc_start(&rbm, ip, dinode);
error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, &minext, &ip->i_res, false);
}
if (error == -ENOSPC) {
gfs2_set_alloc_start(&rbm, ip, dinode);
error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, NULL, NULL, false);
error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, &minext, NULL, false);
}
/* Since all blocks are reserved in advance, this shouldn't happen */
@@ -2371,14 +2455,8 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
gfs2_alloc_extent(&rbm, dinode, nblocks);
block = gfs2_rbm_to_block(&rbm);
rbm.rgd->rd_last_alloc = block - rbm.rgd->rd_data0;
if (gfs2_rs_active(&ip->i_res))
gfs2_adjust_reservation(ip, &rbm, *nblocks);
ndata = *nblocks;
if (dinode)
ndata--;
if (!dinode) {
ip->i_goal = block + ndata - 1;
ip->i_goal = block + *nblocks - 1;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (error == 0) {
struct gfs2_dinode *di =
@@ -2389,12 +2467,20 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
brelse(dibh);
}
}
if (rbm.rgd->rd_free < *nblocks) {
spin_lock(&rbm.rgd->rd_rsspin);
gfs2_adjust_reservation(ip, &rbm, *nblocks);
if (rbm.rgd->rd_free < *nblocks || rbm.rgd->rd_reserved < *nblocks) {
fs_warn(sdp, "nblocks=%u\n", *nblocks);
spin_unlock(&rbm.rgd->rd_rsspin);
goto rgrp_error;
}
BUG_ON(rbm.rgd->rd_reserved < *nblocks);
BUG_ON(rbm.rgd->rd_free_clone < *nblocks);
BUG_ON(rbm.rgd->rd_free < *nblocks);
rbm.rgd->rd_reserved -= *nblocks;
rbm.rgd->rd_free_clone -= *nblocks;
rbm.rgd->rd_free -= *nblocks;
spin_unlock(&rbm.rgd->rd_rsspin);
if (dinode) {
rbm.rgd->rd_dinodes++;
*generation = rbm.rgd->rd_igeneration++;
@@ -2404,6 +2490,7 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
gfs2_trans_add_meta(rbm.rgd->rd_gl, rbm.rgd->rd_bits[0].bi_bh);
gfs2_rgrp_out(rbm.rgd, rbm.rgd->rd_bits[0].bi_bh->b_data);
rgrp_unlock_local(rbm.rgd);
gfs2_statfs_change(sdp, 0, -(s64)*nblocks, dinode ? 1 : 0);
if (dinode)
@@ -2411,13 +2498,13 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
gfs2_quota_change(ip, *nblocks, ip->i_inode.i_uid, ip->i_inode.i_gid);
rbm.rgd->rd_free_clone -= *nblocks;
trace_gfs2_block_alloc(ip, rbm.rgd, block, *nblocks,
dinode ? GFS2_BLKST_DINODE : GFS2_BLKST_USED);
*bn = block;
return 0;
rgrp_error:
rgrp_unlock_local(rbm.rgd);
gfs2_rgrp_error(rbm.rgd);
return -EIO;
}
@@ -2437,12 +2524,14 @@ void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
rgrp_lock_local(rgd);
rgblk_free(sdp, rgd, bstart, blen, GFS2_BLKST_FREE);
trace_gfs2_block_alloc(ip, rgd, bstart, blen, GFS2_BLKST_FREE);
rgd->rd_free += blen;
rgd->rd_flags &= ~GFS2_RGF_TRIMMED;
gfs2_trans_add_meta(rgd->rd_gl, rgd->rd_bits[0].bi_bh);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
rgrp_unlock_local(rgd);
/* Directories keep their data in the metadata address space */
if (meta || ip->i_depth || gfs2_is_jdata(ip))
@@ -2478,17 +2567,20 @@ void gfs2_unlink_di(struct inode *inode)
rgd = gfs2_blk2rgrpd(sdp, blkno, true);
if (!rgd)
return;
rgrp_lock_local(rgd);
rgblk_free(sdp, rgd, blkno, 1, GFS2_BLKST_UNLINKED);
trace_gfs2_block_alloc(ip, rgd, blkno, 1, GFS2_BLKST_UNLINKED);
gfs2_trans_add_meta(rgd->rd_gl, rgd->rd_bits[0].bi_bh);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
be32_add_cpu(&rgd->rd_rgl->rl_unlinked, 1);
rgrp_unlock_local(rgd);
}
void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
rgrp_lock_local(rgd);
rgblk_free(sdp, rgd, ip->i_no_addr, 1, GFS2_BLKST_FREE);
if (!rgd->rd_dinodes)
gfs2_consist_rgrpd(rgd);
@@ -2497,6 +2589,7 @@ void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
gfs2_trans_add_meta(rgd->rd_gl, rgd->rd_bits[0].bi_bh);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
rgrp_unlock_local(rgd);
be32_add_cpu(&rgd->rd_rgl->rl_unlinked, -1);
gfs2_statfs_change(sdp, 0, +1, -1);
@@ -2511,6 +2604,10 @@ void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
* @no_addr: The block number to check
* @type: The block type we are looking for
*
* The inode glock of @no_addr must be held. The @type to check for is either
* GFS2_BLKST_DINODE or GFS2_BLKST_UNLINKED; checking for type GFS2_BLKST_FREE
* or GFS2_BLKST_USED would make no sense.
*
* Returns: 0 if the block type matches the expected type
* -ESTALE if it doesn't match
* or -ve errno if something went wrong while checking
@@ -2534,6 +2631,13 @@ int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, unsigned int type)
rbm.rgd = rgd;
error = gfs2_rbm_from_block(&rbm, no_addr);
if (!WARN_ON_ONCE(error)) {
/*
* No need to take the local resource group lock here; the
* inode glock of @no_addr provides the necessary
* synchronization in case the block is an inode. (In case
* the block is not an inode, the block type will not match
* the @type we are looking for.)
*/
if (gfs2_testbit(&rbm, false) != type)
error = -ESTALE;
}
@@ -2578,7 +2682,7 @@ void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
return;
rgd = gfs2_blk2rgrpd(sdp, block, 1);
} else {
rgd = ip->i_res.rs_rbm.rgd;
rgd = ip->i_res.rs_rgd;
if (!rgd || !rgrp_contains_block(rgd, block))
rgd = gfs2_blk2rgrpd(sdp, block, 1);
}
@@ -2633,9 +2737,8 @@ void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist)
sizeof(struct gfs2_holder),
GFP_NOFS | __GFP_NOFAIL);
for (x = 0; x < rlist->rl_rgrps; x++)
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl,
LM_ST_EXCLUSIVE, 0,
&rlist->rl_ghs[x]);
gfs2_holder_init(rlist->rl_rgd[x]->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rlist->rl_ghs[x]);
}
/**
@@ -2658,3 +2761,14 @@ void gfs2_rlist_free(struct gfs2_rgrp_list *rlist)
}
}
void rgrp_lock_local(struct gfs2_rgrpd *rgd)
{
BUG_ON(!gfs2_glock_is_held_excl(rgd->rd_gl) &&
!test_bit(SDF_NORECOVERY, &rgd->rd_sbd->sd_flags));
mutex_lock(&rgd->rd_mutex);
}
void rgrp_unlock_local(struct gfs2_rgrpd *rgd)
{
mutex_unlock(&rgd->rd_mutex);
}

6
fs/gfs2/rgrp.h
View File

@@ -77,7 +77,7 @@ extern int gfs2_fitrim(struct file *filp, void __user *argp);
/* This is how to tell if a reservation is in the rgrp tree: */
static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs)
{
return rs && !RB_EMPTY_NODE(&rs->rs_node);
return !RB_EMPTY_NODE(&rs->rs_node);
}
static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
@@ -88,4 +88,8 @@ static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
}
extern void check_and_update_goal(struct gfs2_inode *ip);
extern void rgrp_lock_local(struct gfs2_rgrpd *rgd);
extern void rgrp_unlock_local(struct gfs2_rgrpd *rgd);
#endif /* __RGRP_DOT_H__ */

73
fs/gfs2/super.c
View File

@@ -81,19 +81,12 @@ void gfs2_jindex_free(struct gfs2_sbd *sdp)
static struct gfs2_jdesc *jdesc_find_i(struct list_head *head, unsigned int jid)
{
struct gfs2_jdesc *jd;
int found = 0;
list_for_each_entry(jd, head, jd_list) {
if (jd->jd_jid == jid) {
found = 1;
break;
}
if (jd->jd_jid == jid)
return jd;
}
if (!found)
jd = NULL;
return jd;
return NULL;
}
struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid)
@@ -165,7 +158,6 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
{
struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
struct gfs2_glock *j_gl = ip->i_gl;
struct gfs2_holder freeze_gh;
struct gfs2_log_header_host head;
int error;
@@ -173,12 +165,6 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
if (error)
return error;
error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
LM_FLAG_NOEXP | GL_EXACT,
&freeze_gh);
if (error)
goto fail_threads;
j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
if (gfs2_withdrawn(sdp)) {
error = -EIO;
@@ -205,13 +191,9 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
gfs2_glock_dq_uninit(&freeze_gh);
return 0;
fail:
gfs2_glock_dq_uninit(&freeze_gh);
fail_threads:
if (sdp->sd_quotad_process)
kthread_stop(sdp->sd_quotad_process);
sdp->sd_quotad_process = NULL;
@@ -452,7 +434,7 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)
}
if (error)
gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
gfs2_freeze_unlock(&sdp->sd_freeze_gh);
out:
while (!list_empty(&list)) {
@@ -607,30 +589,9 @@ out:
int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
{
struct gfs2_holder freeze_gh;
int error = 0;
int log_write_allowed = test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
gfs2_holder_mark_uninitialized(&freeze_gh);
if (sdp->sd_freeze_gl &&
!gfs2_glock_is_locked_by_me(sdp->sd_freeze_gl)) {
if (!log_write_allowed) {
error = gfs2_glock_nq_init(sdp->sd_freeze_gl,
LM_ST_SHARED, LM_FLAG_TRY |
LM_FLAG_NOEXP | GL_EXACT,
&freeze_gh);
if (error == GLR_TRYFAILED)
error = 0;
} else {
error = gfs2_glock_nq_init(sdp->sd_freeze_gl,
LM_ST_SHARED,
LM_FLAG_NOEXP | GL_EXACT,
&freeze_gh);
if (error && !gfs2_withdrawn(sdp))
return error;
}
}
gfs2_flush_delete_work(sdp);
if (!log_write_allowed && current == sdp->sd_quotad_process)
fs_warn(sdp, "The quotad daemon is withdrawing.\n");
@@ -650,18 +611,15 @@ int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_SHUTDOWN |
GFS2_LFC_MAKE_FS_RO);
wait_event(sdp->sd_reserving_log_wait,
atomic_read(&sdp->sd_reserving_log) == 0);
gfs2_assert_warn(sdp, atomic_read(&sdp->sd_log_blks_free) ==
sdp->sd_jdesc->jd_blocks);
wait_event_timeout(sdp->sd_log_waitq,
gfs2_log_is_empty(sdp),
HZ * 5);
gfs2_assert_warn(sdp, gfs2_log_is_empty(sdp));
} else {
wait_event_timeout(sdp->sd_reserving_log_wait,
atomic_read(&sdp->sd_reserving_log) == 0,
wait_event_timeout(sdp->sd_log_waitq,
gfs2_log_is_empty(sdp),
HZ * 5);
}
if (gfs2_holder_initialized(&freeze_gh))
gfs2_glock_dq_uninit(&freeze_gh);
gfs2_quota_cleanup(sdp);
if (!log_write_allowed)
@@ -770,10 +728,8 @@ void gfs2_freeze_func(struct work_struct *work)
struct super_block *sb = sdp->sd_vfs;
atomic_inc(&sb->s_active);
error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
LM_FLAG_NOEXP | GL_EXACT, &freeze_gh);
error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
if (error) {
fs_info(sdp, "GFS2: couldn't get freeze lock : %d\n", error);
gfs2_assert_withdraw(sdp, 0);
} else {
atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
@@ -783,7 +739,7 @@ void gfs2_freeze_func(struct work_struct *work)
error);
gfs2_assert_withdraw(sdp, 0);
}
gfs2_glock_dq_uninit(&freeze_gh);
gfs2_freeze_unlock(&freeze_gh);
}
deactivate_super(sb);
clear_bit_unlock(SDF_FS_FROZEN, &sdp->sd_flags);
@@ -851,7 +807,7 @@ static int gfs2_unfreeze(struct super_block *sb)
return 0;
}
gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
gfs2_freeze_unlock(&sdp->sd_freeze_gh);
mutex_unlock(&sdp->sd_freeze_mutex);
return wait_on_bit(&sdp->sd_flags, SDF_FS_FROZEN, TASK_INTERRUPTIBLE);
}
@@ -1227,7 +1183,8 @@ static int gfs2_dinode_dealloc(struct gfs2_inode *ip)
goto out_qs;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (error)
goto out_qs;

8
fs/gfs2/super.h
View File

@@ -11,6 +11,10 @@
#include <linux/dcache.h>
#include "incore.h"
/* Supported fs format version range */
#define GFS2_FS_FORMAT_MIN (1801)
#define GFS2_FS_FORMAT_MAX (1802)
extern void gfs2_lm_unmount(struct gfs2_sbd *sdp);
static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
@@ -54,7 +58,9 @@ extern struct file_system_type gfs2meta_fs_type;
extern const struct export_operations gfs2_export_ops;
extern const struct super_operations gfs2_super_ops;
extern const struct dentry_operations gfs2_dops;
extern const struct xattr_handler *gfs2_xattr_handlers[];
extern const struct xattr_handler *gfs2_xattr_handlers_max[];
extern const struct xattr_handler **gfs2_xattr_handlers_min;
#endif /* __SUPER_DOT_H__ */

37
fs/gfs2/trace_gfs2.h
View File

@@ -560,6 +560,7 @@ TRACE_EVENT(gfs2_block_alloc,
__field( u8, block_state )
__field( u64, rd_addr )
__field( u32, rd_free_clone )
__field( u32, rd_requested )
__field( u32, rd_reserved )
),
@@ -571,17 +572,20 @@ TRACE_EVENT(gfs2_block_alloc,
__entry->block_state = block_state;
__entry->rd_addr = rgd->rd_addr;
__entry->rd_free_clone = rgd->rd_free_clone;
__entry->rd_requested = rgd->rd_requested;
__entry->rd_reserved = rgd->rd_reserved;
),
TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rr:%lu",
TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rq:%u rr:%u",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->inum,
(unsigned long long)__entry->start,
(unsigned long)__entry->len,
block_state_name(__entry->block_state),
(unsigned long long)__entry->rd_addr,
__entry->rd_free_clone, (unsigned long)__entry->rd_reserved)
__entry->rd_free_clone,
__entry->rd_requested,
__entry->rd_reserved)
);
/* Keep track of multi-block reservations as they are allocated/freed */
@@ -595,33 +599,40 @@ TRACE_EVENT(gfs2_rs,
__field( dev_t, dev )
__field( u64, rd_addr )
__field( u32, rd_free_clone )
__field( u32, rd_requested )
__field( u32, rd_reserved )
__field( u64, inum )
__field( u64, start )
__field( u32, free )
__field( u32, requested )
__field( u32, reserved )
__field( u8, func )
),
TP_fast_assign(
__entry->dev = rs->rs_rbm.rgd->rd_sbd->sd_vfs->s_dev;
__entry->rd_addr = rs->rs_rbm.rgd->rd_addr;
__entry->rd_free_clone = rs->rs_rbm.rgd->rd_free_clone;
__entry->rd_reserved = rs->rs_rbm.rgd->rd_reserved;
__entry->dev = rs->rs_rgd->rd_sbd->sd_vfs->s_dev;
__entry->rd_addr = rs->rs_rgd->rd_addr;
__entry->rd_free_clone = rs->rs_rgd->rd_free_clone;
__entry->rd_requested = rs->rs_rgd->rd_requested;
__entry->rd_reserved = rs->rs_rgd->rd_reserved;
__entry->inum = container_of(rs, struct gfs2_inode,
i_res)->i_no_addr;
__entry->start = gfs2_rbm_to_block(&rs->rs_rbm);
__entry->free = rs->rs_free;
__entry->start = rs->rs_start;
__entry->requested = rs->rs_requested;
__entry->reserved = rs->rs_reserved;
__entry->func = func;
),
TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%lu rr:%lu %s f:%lu",
TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%u rq:%u rr:%u %s q:%u r:%u",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->inum,
(unsigned long long)__entry->start,
(unsigned long long)__entry->rd_addr,
(unsigned long)__entry->rd_free_clone,
(unsigned long)__entry->rd_reserved,
rs_func_name(__entry->func), (unsigned long)__entry->free)
__entry->rd_free_clone,
__entry->rd_requested,
__entry->rd_reserved,
rs_func_name(__entry->func),
__entry->requested,
__entry->reserved)
);
#endif /* _TRACE_GFS2_H */

102
fs/gfs2/trans.c
View File

@@ -31,17 +31,17 @@ static void gfs2_print_trans(struct gfs2_sbd *sdp, const struct gfs2_trans *tr)
fs_warn(sdp, "blocks=%u revokes=%u reserved=%u touched=%u\n",
tr->tr_blocks, tr->tr_revokes, tr->tr_reserved,
test_bit(TR_TOUCHED, &tr->tr_flags));
fs_warn(sdp, "Buf %u/%u Databuf %u/%u Revoke %u/%u\n",
fs_warn(sdp, "Buf %u/%u Databuf %u/%u Revoke %u\n",
tr->tr_num_buf_new, tr->tr_num_buf_rm,
tr->tr_num_databuf_new, tr->tr_num_databuf_rm,
tr->tr_num_revoke, tr->tr_num_revoke_rm);
tr->tr_num_revoke);
}
int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
unsigned int revokes)
int __gfs2_trans_begin(struct gfs2_trans *tr, struct gfs2_sbd *sdp,
unsigned int blocks, unsigned int revokes,
unsigned long ip)
{
struct gfs2_trans *tr;
int error;
unsigned int extra_revokes;
if (current->journal_info) {
gfs2_print_trans(sdp, current->journal_info);
@@ -52,39 +52,72 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
return -EROFS;
tr = kmem_cache_zalloc(gfs2_trans_cachep, GFP_NOFS);
if (!tr)
return -ENOMEM;
tr->tr_ip = _RET_IP_;
tr->tr_ip = ip;
tr->tr_blocks = blocks;
tr->tr_revokes = revokes;
tr->tr_reserved = 1;
set_bit(TR_ALLOCED, &tr->tr_flags);
if (blocks)
tr->tr_reserved += 6 + blocks;
if (revokes)
tr->tr_reserved += gfs2_struct2blk(sdp, revokes);
tr->tr_reserved = GFS2_LOG_FLUSH_MIN_BLOCKS;
if (blocks) {
/*
* The reserved blocks are either used for data or metadata.
* We can have mixed data and metadata, each with its own log
* descriptor block; see calc_reserved().
*/
tr->tr_reserved += blocks + 1 + DIV_ROUND_UP(blocks - 1, databuf_limit(sdp));
}
INIT_LIST_HEAD(&tr->tr_databuf);
INIT_LIST_HEAD(&tr->tr_buf);
INIT_LIST_HEAD(&tr->tr_list);
INIT_LIST_HEAD(&tr->tr_ail1_list);
INIT_LIST_HEAD(&tr->tr_ail2_list);
if (gfs2_assert_warn(sdp, tr->tr_reserved <= sdp->sd_jdesc->jd_blocks))
return -EINVAL;
sb_start_intwrite(sdp->sd_vfs);
error = gfs2_log_reserve(sdp, tr->tr_reserved);
if (error)
goto fail;
/*
* Try the reservations under sd_log_flush_lock to prevent log flushes
* from creating inconsistencies between the number of allocated and
* reserved revokes. If that fails, do a full-block allocation outside
* of the lock to avoid stalling log flushes. Then, allot the
* appropriate number of blocks to revokes, use as many revokes locally
* as needed, and "release" the surplus into the revokes pool.
*/
down_read(&sdp->sd_log_flush_lock);
if (gfs2_log_try_reserve(sdp, tr, &extra_revokes))
goto reserved;
up_read(&sdp->sd_log_flush_lock);
gfs2_log_reserve(sdp, tr, &extra_revokes);
down_read(&sdp->sd_log_flush_lock);
reserved:
gfs2_log_release_revokes(sdp, extra_revokes);
if (unlikely(!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))) {
gfs2_log_release_revokes(sdp, tr->tr_revokes);
up_read(&sdp->sd_log_flush_lock);
gfs2_log_release(sdp, tr->tr_reserved);
sb_end_intwrite(sdp->sd_vfs);
return -EROFS;
}
current->journal_info = tr;
return 0;
}
fail:
sb_end_intwrite(sdp->sd_vfs);
kmem_cache_free(gfs2_trans_cachep, tr);
int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
unsigned int revokes)
{
struct gfs2_trans *tr;
int error;
tr = kmem_cache_zalloc(gfs2_trans_cachep, GFP_NOFS);
if (!tr)
return -ENOMEM;
error = __gfs2_trans_begin(tr, sdp, blocks, revokes, _RET_IP_);
if (error)
kmem_cache_free(gfs2_trans_cachep, tr);
return error;
}
@@ -92,37 +125,39 @@ void gfs2_trans_end(struct gfs2_sbd *sdp)
{
struct gfs2_trans *tr = current->journal_info;
s64 nbuf;
int alloced = test_bit(TR_ALLOCED, &tr->tr_flags);
current->journal_info = NULL;
if (!test_bit(TR_TOUCHED, &tr->tr_flags)) {
gfs2_log_release_revokes(sdp, tr->tr_revokes);
up_read(&sdp->sd_log_flush_lock);
gfs2_log_release(sdp, tr->tr_reserved);
if (alloced) {
if (!test_bit(TR_ONSTACK, &tr->tr_flags))
gfs2_trans_free(sdp, tr);
sb_end_intwrite(sdp->sd_vfs);
}
sb_end_intwrite(sdp->sd_vfs);
return;
}
gfs2_log_release_revokes(sdp, tr->tr_revokes - tr->tr_num_revoke);
nbuf = tr->tr_num_buf_new + tr->tr_num_databuf_new;
nbuf -= tr->tr_num_buf_rm;
nbuf -= tr->tr_num_databuf_rm;
if (gfs2_assert_withdraw(sdp, (nbuf <= tr->tr_blocks) &&
(tr->tr_num_revoke <= tr->tr_revokes)))
if (gfs2_assert_withdraw(sdp, nbuf <= tr->tr_blocks) ||
gfs2_assert_withdraw(sdp, tr->tr_num_revoke <= tr->tr_revokes))
gfs2_print_trans(sdp, tr);
gfs2_log_commit(sdp, tr);
if (alloced && !test_bit(TR_ATTACHED, &tr->tr_flags))
if (!test_bit(TR_ONSTACK, &tr->tr_flags) &&
!test_bit(TR_ATTACHED, &tr->tr_flags))
gfs2_trans_free(sdp, tr);
up_read(&sdp->sd_log_flush_lock);
if (sdp->sd_vfs->s_flags & SB_SYNCHRONOUS)
gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_TRANS_END);
if (alloced)
sb_end_intwrite(sdp->sd_vfs);
sb_end_intwrite(sdp->sd_vfs);
}
static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl,
@@ -262,7 +297,6 @@ void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
void gfs2_trans_remove_revoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len)
{
struct gfs2_bufdata *bd, *tmp;
struct gfs2_trans *tr = current->journal_info;
unsigned int n = len;
gfs2_log_lock(sdp);
@@ -274,7 +308,7 @@ void gfs2_trans_remove_revoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len)
if (bd->bd_gl)
gfs2_glock_remove_revoke(bd->bd_gl);
kmem_cache_free(gfs2_bufdata_cachep, bd);
tr->tr_num_revoke_rm++;
gfs2_log_release_revokes(sdp, 1);
if (--n == 0)
break;
}

5
fs/gfs2/trans.h
View File

@@ -27,13 +27,16 @@ struct gfs2_glock;
* block, or all of the blocks in the rg, whichever is smaller */
static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
{
struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd;
struct gfs2_rgrpd *rgd = ip->i_res.rs_rgd;
if (requested < rgd->rd_length)
return requested + 1;
return rgd->rd_length;
}
extern int __gfs2_trans_begin(struct gfs2_trans *tr, struct gfs2_sbd *sdp,
unsigned int blocks, unsigned int revokes,
unsigned long ip);
extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
unsigned int revokes);

59
fs/gfs2/util.c
View File

@@ -91,12 +91,39 @@ out_unlock:
return error;
}
/**
* gfs2_freeze_lock - hold the freeze glock
* @sdp: the superblock
* @freeze_gh: pointer to the requested holder
* @caller_flags: any additional flags needed by the caller
*/
int gfs2_freeze_lock(struct gfs2_sbd *sdp, struct gfs2_holder *freeze_gh,
int caller_flags)
{
int flags = LM_FLAG_NOEXP | GL_EXACT | caller_flags;
int error;
error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED, flags,
freeze_gh);
if (error && error != GLR_TRYFAILED)
fs_err(sdp, "can't lock the freeze lock: %d\n", error);
return error;
}
void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh)
{
if (gfs2_holder_initialized(freeze_gh))
gfs2_glock_dq_uninit(freeze_gh);
}
static void signal_our_withdraw(struct gfs2_sbd *sdp)
{
struct gfs2_glock *gl = sdp->sd_live_gh.gh_gl;
struct gfs2_glock *live_gl = sdp->sd_live_gh.gh_gl;
struct inode *inode = sdp->sd_jdesc->jd_inode;
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_glock *i_gl = ip->i_gl;
u64 no_formal_ino = ip->i_no_formal_ino;
int log_write_allowed = test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
int ret = 0;
int tries;
@@ -117,8 +144,21 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
* therefore we need to clear SDF_JOURNAL_LIVE manually.
*/
clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
if (!sb_rdonly(sdp->sd_vfs))
ret = gfs2_make_fs_ro(sdp);
if (!sb_rdonly(sdp->sd_vfs)) {
struct gfs2_holder freeze_gh;
gfs2_holder_mark_uninitialized(&freeze_gh);
if (sdp->sd_freeze_gl &&
!gfs2_glock_is_locked_by_me(sdp->sd_freeze_gl)) {
ret = gfs2_freeze_lock(sdp, &freeze_gh,
log_write_allowed ? 0 : LM_FLAG_TRY);
if (ret == GLR_TRYFAILED)
ret = 0;
}
if (!ret)
ret = gfs2_make_fs_ro(sdp);
gfs2_freeze_unlock(&freeze_gh);
}
if (sdp->sd_lockstruct.ls_ops->lm_lock == NULL) { /* lock_nolock */
if (!ret)
@@ -141,7 +181,8 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
thaw_super(sdp->sd_vfs);
} else {
wait_on_bit(&gl->gl_flags, GLF_DEMOTE, TASK_UNINTERRUPTIBLE);
wait_on_bit(&i_gl->gl_flags, GLF_DEMOTE,
TASK_UNINTERRUPTIBLE);
}
/*
@@ -161,15 +202,15 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
* on other nodes to be successful, otherwise we remain the owner of
* the glock as far as dlm is concerned.
*/
if (gl->gl_ops->go_free) {
set_bit(GLF_FREEING, &gl->gl_flags);
wait_on_bit(&gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE);
if (i_gl->gl_ops->go_free) {
set_bit(GLF_FREEING, &i_gl->gl_flags);
wait_on_bit(&i_gl->gl_flags, GLF_FREEING, TASK_UNINTERRUPTIBLE);
}
/*
* Dequeue the "live" glock, but keep a reference so it's never freed.
*/
gfs2_glock_hold(gl);
gfs2_glock_hold(live_gl);
gfs2_glock_dq_wait(&sdp->sd_live_gh);
/*
* We enqueue the "live" glock in EX so that all other nodes
@@ -208,7 +249,7 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
gfs2_glock_nq(&sdp->sd_live_gh);
}
gfs2_glock_queue_put(gl); /* drop the extra reference we acquired */
gfs2_glock_queue_put(live_gl); /* drop extra reference we acquired */
clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
/*

3
fs/gfs2/util.h
View File

@@ -149,6 +149,9 @@ int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
extern int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
bool verbose);
extern int gfs2_freeze_lock(struct gfs2_sbd *sdp,
struct gfs2_holder *freeze_gh, int caller_flags);
extern void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh);
#define gfs2_io_error(sdp) \
gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__)

54
fs/gfs2/xattr.c
View File

@@ -70,6 +70,20 @@ static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize)
return 0;
}
static bool gfs2_eatype_valid(struct gfs2_sbd *sdp, u8 type)
{
switch(sdp->sd_sb.sb_fs_format) {
case GFS2_FS_FORMAT_MAX:
return true;
case GFS2_FS_FORMAT_MIN:
return type <= GFS2_EATYPE_SECURITY;
default:
return false;
}
}
typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
struct gfs2_ea_header *ea,
struct gfs2_ea_header *prev, void *private);
@@ -77,6 +91,7 @@ typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
ea_call_t ea_call, void *data)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_ea_header *ea, *prev = NULL;
int error = 0;
@@ -89,9 +104,8 @@ static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
bh->b_data + bh->b_size))
goto fail;
if (!GFS2_EATYPE_VALID(ea->ea_type))
if (!gfs2_eatype_valid(sdp, ea->ea_type))
goto fail;
error = ea_call(ip, bh, ea, prev, data);
if (error)
return error;
@@ -259,7 +273,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
return -EIO;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &rg_gh);
if (error)
return error;
@@ -344,6 +359,7 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
void *private)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct ea_list *ei = private;
struct gfs2_ea_request *er = ei->ei_er;
unsigned int ea_size;
@@ -353,6 +369,8 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
if (ea->ea_type == GFS2_EATYPE_UNUSED)
return 0;
BUG_ON(ea->ea_type > GFS2_EATYPE_SECURITY &&
sdp->sd_sb.sb_fs_format == GFS2_FS_FORMAT_MIN);
switch (ea->ea_type) {
case GFS2_EATYPE_USR:
prefix = "user.";
@@ -366,8 +384,12 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
prefix = "security.";
l = 9;
break;
case GFS2_EATYPE_TRUSTED:
prefix = "trusted.";
l = 8;
break;
default:
BUG();
return 0;
}
ea_size = l + ea->ea_name_len + 1;
@@ -1386,7 +1408,8 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
return -EIO;
}
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
LM_FLAG_NODE_SCOPE, &gh);
if (error)
return error;
@@ -1464,7 +1487,25 @@ static const struct xattr_handler gfs2_xattr_security_handler = {
.set = gfs2_xattr_set,
};
const struct xattr_handler *gfs2_xattr_handlers[] = {
static bool
gfs2_xattr_trusted_list(struct dentry *dentry)
{
return capable(CAP_SYS_ADMIN);
}
static const struct xattr_handler gfs2_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.flags = GFS2_EATYPE_TRUSTED,
.list = gfs2_xattr_trusted_list,
.get = gfs2_xattr_get,
.set = gfs2_xattr_set,
};
const struct xattr_handler *gfs2_xattr_handlers_max[] = {
/* GFS2_FS_FORMAT_MAX */
&gfs2_xattr_trusted_handler,
/* GFS2_FS_FORMAT_MIN */
&gfs2_xattr_user_handler,
&gfs2_xattr_security_handler,
&posix_acl_access_xattr_handler,
@@ -1472,3 +1513,4 @@ const struct xattr_handler *gfs2_xattr_handlers[] = {
NULL,
};
const struct xattr_handler **gfs2_xattr_handlers_min = gfs2_xattr_handlers_max + 1;

103
include/dt-bindings/input/cros-ec-keyboard.h Normal file
View File

@@ -0,0 +1,103 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* This header provides the constants of the standard Chrome OS key matrix
* for cros-ec keyboard-controller bindings.
*
* Copyright (c) 2021 Google, Inc
*/
#ifndef _CROS_EC_KEYBOARD_H
#define _CROS_EC_KEYBOARD_H
#define CROS_STD_TOP_ROW_KEYMAP \
MATRIX_KEY(0x00, 0x02, KEY_F1) \
MATRIX_KEY(0x03, 0x02, KEY_F2) \
MATRIX_KEY(0x02, 0x02, KEY_F3) \
MATRIX_KEY(0x01, 0x02, KEY_F4) \
MATRIX_KEY(0x03, 0x04, KEY_F5) \
MATRIX_KEY(0x02, 0x04, KEY_F6) \
MATRIX_KEY(0x01, 0x04, KEY_F7) \
MATRIX_KEY(0x02, 0x09, KEY_F8) \
MATRIX_KEY(0x01, 0x09, KEY_F9) \
MATRIX_KEY(0x00, 0x04, KEY_F10)
#define CROS_STD_MAIN_KEYMAP \
MATRIX_KEY(0x00, 0x01, KEY_LEFTMETA) \
MATRIX_KEY(0x00, 0x03, KEY_B) \
MATRIX_KEY(0x00, 0x05, KEY_RO) \
MATRIX_KEY(0x00, 0x06, KEY_N) \
MATRIX_KEY(0x00, 0x08, KEY_EQUAL) \
MATRIX_KEY(0x00, 0x0a, KEY_RIGHTALT) \
MATRIX_KEY(0x01, 0x01, KEY_ESC) \
MATRIX_KEY(0x01, 0x03, KEY_G) \
MATRIX_KEY(0x01, 0x06, KEY_H) \
MATRIX_KEY(0x01, 0x08, KEY_APOSTROPHE) \
MATRIX_KEY(0x01, 0x0b, KEY_BACKSPACE) \
MATRIX_KEY(0x01, 0x0c, KEY_HENKAN) \
\
MATRIX_KEY(0x02, 0x00, KEY_LEFTCTRL) \
MATRIX_KEY(0x02, 0x01, KEY_TAB) \
MATRIX_KEY(0x02, 0x03, KEY_T) \
MATRIX_KEY(0x02, 0x05, KEY_RIGHTBRACE) \
MATRIX_KEY(0x02, 0x06, KEY_Y) \
MATRIX_KEY(0x02, 0x07, KEY_102ND) \
MATRIX_KEY(0x02, 0x08, KEY_LEFTBRACE) \
MATRIX_KEY(0x02, 0x0a, KEY_YEN) \
\
MATRIX_KEY(0x03, 0x00, KEY_LEFTMETA) \
MATRIX_KEY(0x03, 0x01, KEY_GRAVE) \
MATRIX_KEY(0x03, 0x03, KEY_5) \
MATRIX_KEY(0x03, 0x06, KEY_6) \
MATRIX_KEY(0x03, 0x08, KEY_MINUS) \
MATRIX_KEY(0x03, 0x09, KEY_SLEEP) \
MATRIX_KEY(0x03, 0x0b, KEY_BACKSLASH) \
MATRIX_KEY(0x03, 0x0c, KEY_MUHENKAN) \
\
MATRIX_KEY(0x04, 0x00, KEY_RIGHTCTRL) \
MATRIX_KEY(0x04, 0x01, KEY_A) \
MATRIX_KEY(0x04, 0x02, KEY_D) \
MATRIX_KEY(0x04, 0x03, KEY_F) \
MATRIX_KEY(0x04, 0x04, KEY_S) \
MATRIX_KEY(0x04, 0x05, KEY_K) \
MATRIX_KEY(0x04, 0x06, KEY_J) \
MATRIX_KEY(0x04, 0x08, KEY_SEMICOLON) \
MATRIX_KEY(0x04, 0x09, KEY_L) \
MATRIX_KEY(0x04, 0x0a, KEY_BACKSLASH) \
MATRIX_KEY(0x04, 0x0b, KEY_ENTER) \
\
MATRIX_KEY(0x05, 0x01, KEY_Z) \
MATRIX_KEY(0x05, 0x02, KEY_C) \
MATRIX_KEY(0x05, 0x03, KEY_V) \
MATRIX_KEY(0x05, 0x04, KEY_X) \
MATRIX_KEY(0x05, 0x05, KEY_COMMA) \
MATRIX_KEY(0x05, 0x06, KEY_M) \
MATRIX_KEY(0x05, 0x07, KEY_LEFTSHIFT) \
MATRIX_KEY(0x05, 0x08, KEY_SLASH) \
MATRIX_KEY(0x05, 0x09, KEY_DOT) \
MATRIX_KEY(0x05, 0x0b, KEY_SPACE) \
\
MATRIX_KEY(0x06, 0x01, KEY_1) \
MATRIX_KEY(0x06, 0x02, KEY_3) \
MATRIX_KEY(0x06, 0x03, KEY_4) \
MATRIX_KEY(0x06, 0x04, KEY_2) \
MATRIX_KEY(0x06, 0x05, KEY_8) \
MATRIX_KEY(0x06, 0x06, KEY_7) \
MATRIX_KEY(0x06, 0x08, KEY_0) \
MATRIX_KEY(0x06, 0x09, KEY_9) \
MATRIX_KEY(0x06, 0x0a, KEY_LEFTALT) \
MATRIX_KEY(0x06, 0x0b, KEY_DOWN) \
MATRIX_KEY(0x06, 0x0c, KEY_RIGHT) \
\
MATRIX_KEY(0x07, 0x01, KEY_Q) \
MATRIX_KEY(0x07, 0x02, KEY_E) \
MATRIX_KEY(0x07, 0x03, KEY_R) \
MATRIX_KEY(0x07, 0x04, KEY_W) \
MATRIX_KEY(0x07, 0x05, KEY_I) \
MATRIX_KEY(0x07, 0x06, KEY_U) \
MATRIX_KEY(0x07, 0x07, KEY_RIGHTSHIFT) \
MATRIX_KEY(0x07, 0x08, KEY_P) \
MATRIX_KEY(0x07, 0x09, KEY_O) \
MATRIX_KEY(0x07, 0x0b, KEY_UP) \
MATRIX_KEY(0x07, 0x0c, KEY_LEFT)
#endif /* _CROS_EC_KEYBOARD_H */

9
include/linux/hid-sensor-hub.h
View File

@@ -150,7 +150,7 @@ int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
* @info: return information about attribute after parsing report
*
* Parses report and returns the attribute information such as report id,
* field index, units and exponet etc.
* field index, units and exponent etc.
*/
int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
u8 type,
@@ -167,7 +167,7 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
* @is_signed: If true then fields < 32 bits will be sign-extended
*
* Issues a synchronous or asynchronous read request for an input attribute.
* Returns data upto 32 bits.
* Return: data up to 32 bits.
*/
enum sensor_hub_read_flags {
@@ -205,8 +205,9 @@ int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
* @buffer: buffer to copy output
*
* Used to get a field in feature report. For example this can get polling
* interval, sensitivity, activate/deactivate state. On success it returns
* number of bytes copied to buffer. On failure, it returns value < 0.
* interval, sensitivity, activate/deactivate state.
* Return: On success, it returns the number of bytes copied to buffer.
* On failure, it returns value < 0.
*/
int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
u32 field_index, int buffer_size, void *buffer);

15
include/linux/hid.h
View File

@@ -918,7 +918,7 @@ __u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
/**
* hid_device_io_start - enable HID input during probe, remove
*
* @hid - the device
* @hid: the device
*
* This should only be called during probe or remove and only be
* called by the thread calling probe or remove. It will allow
@@ -936,7 +936,7 @@ static inline void hid_device_io_start(struct hid_device *hid) {
/**
* hid_device_io_stop - disable HID input during probe, remove
*
* @hid - the device
* @hid: the device
*
* Should only be called after hid_device_io_start. It will prevent
* incoming packets from going to the driver for the duration of
@@ -1010,6 +1010,13 @@ static inline void hid_map_usage(struct hid_input *hidinput,
/**
* hid_map_usage_clear - map usage input bits and clear the input bit
*
* @hidinput: hidinput which we are interested in
* @usage: usage to fill in
* @bit: pointer to input->{}bit (out parameter)
* @max: maximal valid usage->code to consider later (out parameter)
* @type: input event type (EV_KEY, EV_REL, ...)
* @c: code which corresponds to this usage and type
*
* The same as hid_map_usage, except the @c bit is also cleared in supported
* bits (@bit).
*/
@@ -1084,7 +1091,7 @@ static inline void hid_hw_request(struct hid_device *hdev,
* @rtype: HID report type
* @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
*
* @return: count of data transfered, negative if error
* Return: count of data transferred, negative if error
*
* Same behavior as hid_hw_request, but with raw buffers instead.
*/
@@ -1106,7 +1113,7 @@ static inline int hid_hw_raw_request(struct hid_device *hdev,
* @buf: raw data to transfer
* @len: length of buf
*
* @return: count of data transfered, negative if error
* Return: count of data transferred, negative if error
*/
static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,
size_t len)

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