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ANDROID: USB: gadget: f_accessory: add support for SuperSpeed Plus

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Adds the necessary SuperSpeed Plus support for f_accessory.

[Not upstream as this file is not upstream.]

Bug: 170925797
Signed-off-by: taehyun.cho <taehyun.cho@samsung.com>
Change-Id: Ia2a5f4a6cefac2418f8f29bf1a56355b96d80fc0
(cherry picked from commit 00572be28ec474d7953f1b9dd681cc2dd290d9bf)
[willmcvicker: only cherry-pick f_accessory from original patch]
Signed-off-by: Will McVicker <willmcvicker@google.com>
(cherry picked from commit 4d7ced0819d3f30acbde46991393249049cefa05)
Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
taehyun.cho
2020-10-15 23:13:20 -07:00
committed by Greg Kroah-Hartman
parent 974f1252bb
commit 9acdbad022
1 changed files with 73 additions and 2 deletions
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75
drivers/usb/gadget/function/f_accessory.c
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@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Gadget Function Driver for Android USB accessories
*
@@ -146,12 +147,62 @@ static struct usb_interface_descriptor acc_interface_desc = {
.bInterfaceProtocol = 0,
};
static struct usb_endpoint_descriptor acc_superspeedplus_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
static struct usb_endpoint_descriptor acc_superspeedplus_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
static struct usb_ss_ep_comp_descriptor acc_superspeedplus_comp_desc = {
.bLength = sizeof(acc_superspeedplus_comp_desc),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
/* the following 2 values can be tweaked if necessary */
/* .bMaxBurst = 0, */
/* .bmAttributes = 0, */
};
static struct usb_endpoint_descriptor acc_superspeed_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
static struct usb_endpoint_descriptor acc_superspeed_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(1024),
};
static struct usb_ss_ep_comp_descriptor acc_superspeed_comp_desc = {
.bLength = sizeof(acc_superspeed_comp_desc),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
/* the following 2 values can be tweaked if necessary */
/* .bMaxBurst = 0, */
/* .bmAttributes = 0, */
};
static struct usb_endpoint_descriptor acc_highspeed_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = __constant_cpu_to_le16(512),
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_endpoint_descriptor acc_highspeed_out_desc = {
@@ -159,7 +210,7 @@ static struct usb_endpoint_descriptor acc_highspeed_out_desc = {
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = __constant_cpu_to_le16(512),
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_endpoint_descriptor acc_fullspeed_in_desc = {
@@ -190,6 +241,24 @@ static struct usb_descriptor_header *hs_acc_descs[] = {
NULL,
};
static struct usb_descriptor_header *ss_acc_descs[] = {
(struct usb_descriptor_header *) &acc_interface_desc,
(struct usb_descriptor_header *) &acc_superspeed_in_desc,
(struct usb_descriptor_header *) &acc_superspeed_comp_desc,
(struct usb_descriptor_header *) &acc_superspeed_out_desc,
(struct usb_descriptor_header *) &acc_superspeed_comp_desc,
NULL,
};
static struct usb_descriptor_header *ssp_acc_descs[] = {
(struct usb_descriptor_header *) &acc_interface_desc,
(struct usb_descriptor_header *) &acc_superspeedplus_in_desc,
(struct usb_descriptor_header *) &acc_superspeedplus_comp_desc,
(struct usb_descriptor_header *) &acc_superspeedplus_out_desc,
(struct usb_descriptor_header *) &acc_superspeedplus_comp_desc,
NULL,
};
static struct usb_string acc_string_defs[] = {
[INTERFACE_STRING_INDEX].s = "Android Accessory Interface",
{ }, /* end of list */
@@ -1369,6 +1438,8 @@ static struct usb_function *acc_alloc(struct usb_function_instance *fi)
dev->function.strings = acc_strings,
dev->function.fs_descriptors = fs_acc_descs;
dev->function.hs_descriptors = hs_acc_descs;
dev->function.ss_descriptors = ss_acc_descs;
dev->function.ssp_descriptors = ssp_acc_descs;
dev->function.bind = acc_function_bind_configfs;
dev->function.unbind = acc_function_unbind;
dev->function.set_alt = acc_function_set_alt;