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drivers/power: remove unused bq3060_battery driver

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Change-Id: Ic940d3f117a71ac008e519a26276f19599f7231a
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
This commit is contained in:
Tao Huang
2018-11-05 14:37:53 +08:00
parent b56af09c15
commit b4734349c1
1 changed files with 0 additions and 505 deletions
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505
drivers/power/bq3060_battery.c
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@@ -1,505 +0,0 @@
/*
* bq3060 battery driver
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#include <linux/module.h>
#include <linux/param.h>
#include <linux/jiffies.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/idr.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#include <mach/gpio.h>
#define DRIVER_VERSION "1.1.0"
#define BQ3060_REG_TEMP 0x08
#define BQ3060_REG_VOLT 0x09
#define BQ3060_REG_AI 0x0a ///0x14
#define BQ3060_REG_STATUS 0x16
#define BQ3060_REG_TTE 0x06 ///0x16
#define BQ3060_REG_TTF 0x05 //0x18
#define BQ3060_REG_TTECP 0x12 //0x26
#define BQ3060_REG_DESIGNCAPACITY 0x18 //0x26
#define BQ3060_REG_RSOC 0x0B /* Relative State-of-Charge */
#define BQ3060_FLAG_CHGS BIT(7)
#define BQ3060_REG_CAPACITY 0x0f ///0x0E
#define BQ3060_FLAG_DSC BIT(0)
#define BQ3060_FLAG_FC BIT(9)
#define bq3060_SPEED 200 * 1000
#define DC_CHECK_PIN RK29_PIN4_PA1
/* manufacturer access defines */
#define MANUFACTURER_ACCESS_STATUS 0x0006
#define MANUFACTURER_ACCESS_SLEEP 0x0011
/* battery status value bits */
#define BATTERY_DISCHARGING 0x40
#define BATTERY_FULL_CHARGED 0x20
#define BATTERY_FULL_DISCHARGED 0x10
#if 0
#define DBG(x...) printk(KERN_INFO x)
#else
#define DBG(x...) do { } while (0)
#endif
/* If the system has several batteries we need a different name for each
* of them...
*/
static DEFINE_MUTEX(battery_mutex);
struct bq3060_device_info {
struct device *dev;
struct power_supply bat;
struct power_supply ac;
struct power_supply usb;
struct delayed_work work;
unsigned int interval;
struct i2c_client *client;
};
static enum power_supply_property bq3060_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_TEMP,
//POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
//POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
//POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
};
static enum power_supply_property rk29_ac_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
/*
* Common code for bq3060 devices read
*/
static int bq3060_read(struct i2c_client *client, u8 reg, u8 buf[], unsigned len)
{
struct i2c_adapter *adap=client->adapter;
struct i2c_msg msgs[2];
int ret;
char reg_buf = reg;
msgs[0].addr = client->addr;
msgs[0].flags = client->flags;
msgs[0].len = 1;
msgs[0].buf = &reg_buf;
msgs[0].scl_rate = bq3060_SPEED;
msgs[1].addr = client->addr;
msgs[1].flags = client->flags | I2C_M_RD;
msgs[1].len = len;
msgs[1].buf = (char *)buf;
msgs[1].scl_rate = bq3060_SPEED;
ret = i2c_transfer(adap, msgs, 2);
return (ret == 2)? len : ret;
}
static int bq3060_write(struct i2c_client *client, u8 reg, u8 const buf[], unsigned len)
{
int ret;
///return 0;
ret = i2c_master_reg8_send(client, reg, buf, (int)len, bq3060_SPEED);
return ret;
}
/*
* Return the battery temperature in tenths of degree Celsius
* Or < 0 if something fails.
*/
static int bq3060_battery_temperature(struct bq3060_device_info *di)
{
int ret;
int temp = 0;
u8 buf[2];
ret = bq3060_read(di->client,BQ3060_REG_TEMP,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading temperature\n");
return ret;
}
temp = get_unaligned_le16(buf);
temp = temp - 2731;
//#if CONFIG_NO_BATTERY_IC
temp = 258;
//#endif
DBG("Enter:%s %d--temp = %d\n",__FUNCTION__,__LINE__,temp);
return temp;
}
/*
* Return the battery Voltage in milivolts
* Or < 0 if something fails.
*/
static int bq3060_battery_voltage(struct bq3060_device_info *di)
{
int ret;
u8 buf[2];
int volt = 0;
ret = bq3060_read(di->client,BQ3060_REG_VOLT,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading voltage\n");
return ret;
}
volt = get_unaligned_le16(buf);
volt = volt;
DBG("Enter:%s %d--volt = %d\n",__FUNCTION__,__LINE__,volt);
return volt;
}
/*
* Return the battery average current
* Note that current can be negative signed as well
* Or 0 if something fails.
*/
static int bq3060_battery_current(struct bq3060_device_info *di)
{
int ret;
int curr = 0;
u8 buf[2];
ret = bq3060_read(di->client,BQ3060_REG_AI,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading current\n");
return 0;
}
curr = get_unaligned_le16(buf);
if(curr>0x8000){
curr = 0xFFFF^(curr-1);
}
curr = curr * 1000;
DBG("Enter:%s %d--curr = %d\n",__FUNCTION__,__LINE__,curr);
return curr;
}
/*
* Return the battery Relative State-of-Charge
* Or < 0 if something fails.
*/
static int bq3060_battery_capacity(struct bq3060_device_info *di)
{
int ret;
int rsoc = 0;
#if 1
int designcapacity=0;
#endif
u8 buf[2];
ret = bq3060_read(di->client,BQ3060_REG_CAPACITY,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading relative State-of-Charge\n");
return ret;
}
rsoc = get_unaligned_le16(buf);
DBG("Enter:%s %d--capacity = %d\n",__FUNCTION__,__LINE__,rsoc);
#if CONFIG_NO_BATTERY_IC
rsoc = 100;
#endif
#if 1
ret = bq3060_read(di->client,BQ3060_REG_DESIGNCAPACITY,buf,2);
designcapacity = get_unaligned_le16(buf);
DBG("Enter:%s %d--designcapacity = %d\n",__FUNCTION__,__LINE__,designcapacity);
#endif
if((rsoc<150)|(designcapacity<=200))
return 0;
rsoc = ((rsoc - 100)*100) / (designcapacity -200);
if(rsoc>100)
rsoc = 100;
DBG("Enter:%s %d--capacity = %d\n",__FUNCTION__,__LINE__,rsoc);
return rsoc;
}
static int bq3060_battery_status(struct bq3060_device_info *di,
union power_supply_propval *val)
{
u8 buf[2];
int flags = 0;
int status;
int ret;
ret = bq3060_read(di->client,BQ3060_REG_STATUS, buf, 2);
if (ret < 0) {
dev_err(di->dev, "error reading flags\n");
return ret;
}
flags = get_unaligned_le16(buf);
DBG("Enter:%s %d--flags = %x\n",__FUNCTION__,__LINE__,flags);
if (flags & 0x20 )
status = POWER_SUPPLY_STATUS_FULL;
else if (flags & 0x40 )
status = POWER_SUPPLY_STATUS_DISCHARGING;
else
status = POWER_SUPPLY_STATUS_CHARGING;
val->intval = status;
return status;
}
/*
* Read a time register.
* Return < 0 if something fails.
*/
static int bq3060_battery_time(struct bq3060_device_info *di, int reg,
union power_supply_propval *val)
{
u8 buf[2];
int tval = 0;
int ret;
ret = bq3060_read(di->client,reg,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading register %02x\n", reg);
return ret;
}
tval = get_unaligned_le16(buf);
DBG("Enter:%s %d--tval=%d\n",__FUNCTION__,__LINE__,tval);
if (tval == 65535)
return -ENODATA;
val->intval = tval * 60;
DBG("Enter:%s %d val->intval = %d\n",__FUNCTION__,__LINE__,val->intval);
return 0;
}
#define to_bq3060_device_info(x) container_of((x), \
struct bq3060_device_info, bat);
static int bq3060_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int ret = 0;
struct bq3060_device_info *di = to_bq3060_device_info(psy);
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_STATUS:
val->intval = bq3060_battery_status(di, val);
if(val->intval < 0)
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case POWER_SUPPLY_PROP_HEALTH:
val->intval = POWER_SUPPLY_HEALTH_GOOD;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_PRESENT:
val->intval =1;// bq3060_battery_voltage(di);
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = bq3060_battery_current(di);
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = bq3060_battery_capacity(di);
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = bq3060_battery_temperature(di);
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
ret = bq3060_battery_time(di, BQ3060_REG_TTE, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
ret = bq3060_battery_time(di, BQ3060_REG_TTECP, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
ret = bq3060_battery_time(di, BQ3060_REG_TTF, val);
break;
default:
return -EINVAL;
}
return 0;
}
static int rk29_ac_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
if (psy->type == POWER_SUPPLY_TYPE_MAINS){
if(gpio_get_value(DC_CHECK_PIN))
val->intval = 0;
else
val->intval = 1;
}
DBG("%s:%d val->intval = %d\n",__FUNCTION__,__LINE__,val->intval);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static void bq3060_powersupply_init(struct bq3060_device_info *di)
{
di->bat.name = "battery";
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
di->bat.properties = bq3060_battery_props;
di->bat.num_properties = ARRAY_SIZE(bq3060_battery_props);
di->bat.get_property = bq3060_battery_get_property;
di->ac.name = "ac";
di->ac.type = POWER_SUPPLY_TYPE_MAINS;
di->ac.properties = rk29_ac_props;
di->ac.num_properties = ARRAY_SIZE(rk29_ac_props);
di->ac.get_property = rk29_ac_get_property;
di->usb.name = "usb";
di->usb.type = POWER_SUPPLY_TYPE_USB;
di->usb.properties = rk29_ac_props;
di->usb.num_properties = ARRAY_SIZE(rk29_ac_props);
di->usb.get_property = bq3060_battery_get_property;
}
static void bq3060_battery_update_status(struct bq3060_device_info *di)
{
power_supply_changed(&di->bat);
}
static void bq3060_battery_work(struct work_struct *work)
{
struct bq3060_device_info *di = container_of(work, struct bq3060_device_info, work.work);
bq3060_battery_update_status(di);
/* reschedule for the next time */
schedule_delayed_work(&di->work, di->interval);
}
static int bq3060_battery_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bq3060_device_info *di;
int retval = 0;
u8 buf[2];
di = kzalloc(sizeof(*di), GFP_KERNEL);
if (!di) {
dev_err(&client->dev, "failed to allocate device info data\n");
retval = -ENOMEM;
goto batt_failed_2;
}
i2c_set_clientdata(client, di);
di->dev = &client->dev;
di->bat.name = "bq3060-battery";
di->client = client;
/* 4 seconds between monotor runs interval */
di->interval = msecs_to_jiffies(1 * 1000);
gpio_request(DC_CHECK_PIN,"dc_check");
gpio_direction_input(DC_CHECK_PIN);
bq3060_powersupply_init(di);
buf[0] = 0x41;
buf[1] = 0x00;
bq3060_write(di->client,0x00,buf,2);
buf[0] = 0x21;
buf[1] = 0x00;
bq3060_write(di->client,0x00,buf,2);
retval = power_supply_register(&client->dev, &di->bat);
if (retval) {
dev_err(&client->dev, "failed to register battery\n");
goto batt_failed_4;
}
//retval = power_supply_register(&client->dev, &di->usb);
if (retval) {
dev_err(&client->dev, "failed to register usb battery\n");
goto batt_failed_4;
}
retval = power_supply_register(&client->dev, &di->ac);
if (retval) {
dev_err(&client->dev, "failed to register ac adapter\n");
goto batt_failed_4;
}
INIT_DELAYED_WORK(&di->work, bq3060_battery_work);
schedule_delayed_work(&di->work, di->interval);
dev_info(&client->dev, "support ver. %s enabled\n", DRIVER_VERSION);
return 0;
batt_failed_4:
kfree(di);
batt_failed_2:
return retval;
}
static int bq3060_battery_remove(struct i2c_client *client)
{
struct bq3060_device_info *di = i2c_get_clientdata(client);
power_supply_unregister(&di->bat);
kfree(di->bat.name);
kfree(di);
return 0;
}
/*
* Module stuff
*/
static const struct i2c_device_id bq3060_id[] = {
{ "bq3060", 0 },
};
static struct i2c_driver bq3060_battery_driver = {
.driver = {
.name = "bq3060-battery",
},
.probe = bq3060_battery_probe,
.remove = bq3060_battery_remove,
.id_table = bq3060_id,
};
static int __init bq3060_battery_init(void)
{
int ret;
ret = i2c_add_driver(&bq3060_battery_driver);
if (ret)
printk(KERN_ERR "Unable to register bq3060 driver\n");
return ret;
}
module_init(bq3060_battery_init);
static void __exit bq3060_battery_exit(void)
{
i2c_del_driver(&bq3060_battery_driver);
}
module_exit(bq3060_battery_exit);
MODULE_AUTHOR("Rockchip");
MODULE_DESCRIPTION("bq3060 battery monitor driver");
MODULE_LICENSE("GPL");