mirror of
https://github.com/torvalds/linux.git
synced 2026-06-09 07:03:37 +02:00
add bq27541
This commit is contained in:
clb
parent
8d06500430
commit
8cf48bcc5a
|
|
@ -1,7 +1,7 @@
|
|||
#
|
||||
# Automatically generated make config: don't edit
|
||||
# Linux kernel version: 2.6.32.27
|
||||
# Wed Jul 27 17:48:19 2011
|
||||
# Fri Jul 29 16:43:33 2011
|
||||
#
|
||||
CONFIG_ARM=y
|
||||
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
|
||||
|
|
@ -199,9 +199,7 @@ CONFIG_MMU=y
|
|||
# CONFIG_ARCH_DAVINCI is not set
|
||||
# CONFIG_ARCH_OMAP is not set
|
||||
# CONFIG_ARCH_BCMRING is not set
|
||||
# CONFIG_ARCH_RK2818 is not set
|
||||
CONFIG_ARCH_RK29=y
|
||||
CONFIG_WIFI_CONTROL_FUNC=y
|
||||
# CONFIG_MACH_RK29SDK is not set
|
||||
# CONFIG_MACH_RK29SDK_DDR3 is not set
|
||||
# CONFIG_MACH_RK29WINACCORD is not set
|
||||
|
|
@ -237,6 +235,8 @@ CONFIG_MACH_RK29_newton=y
|
|||
CONFIG_DDR_TYPE_DDR3_DEFAULT=y
|
||||
CONFIG_RK29_MEM_SIZE_M=512
|
||||
CONFIG_DDR_SDRAM_FREQ=456
|
||||
# CONFIG_DDR_RECONFIG is not set
|
||||
CONFIG_WIFI_CONTROL_FUNC=y
|
||||
|
||||
#
|
||||
# RK29 VPU (Video Processing Unit) support
|
||||
|
|
@ -969,7 +969,7 @@ CONFIG_UART2_RK29=y
|
|||
CONFIG_UART2_CTS_RTS_RK29=y
|
||||
# CONFIG_UART2_DMA_RK29 is not set
|
||||
CONFIG_UART3_RK29=y
|
||||
CONFIG_UART3_CTS_RTS_RK29=y
|
||||
# CONFIG_UART3_CTS_RTS_RK29 is not set
|
||||
# CONFIG_UART3_DMA_RK29 is not set
|
||||
CONFIG_SERIAL_RK29_CONSOLE=y
|
||||
CONFIG_UNIX98_PTYS=y
|
||||
|
|
@ -1004,6 +1004,9 @@ CONFIG_RK29_I2C1_CONTROLLER=y
|
|||
CONFIG_I2C2_RK29=y
|
||||
CONFIG_RK29_I2C2_CONTROLLER=y
|
||||
# CONFIG_RK29_I2C2_GPIO is not set
|
||||
CONFIG_I2C3_RK29=y
|
||||
CONFIG_RK29_I2C3_CONTROLLER=y
|
||||
# CONFIG_RK29_I2C3_GPIO is not set
|
||||
CONFIG_I2C_DEV_RK29=y
|
||||
|
||||
#
|
||||
|
|
@ -1020,7 +1023,6 @@ CONFIG_I2C_DEV_RK29=y
|
|||
CONFIG_ADC=y
|
||||
# CONFIG_ADC_RK28 is not set
|
||||
CONFIG_ADC_RK29=y
|
||||
# CONFIG_SPI_FPGA is not set
|
||||
|
||||
#
|
||||
# Headset device support
|
||||
|
|
@ -1074,10 +1076,9 @@ CONFIG_POWER_SUPPLY=y
|
|||
# CONFIG_BATTERY_BQ27x00 is not set
|
||||
# CONFIG_BATTERY_MAX17040 is not set
|
||||
# CONFIG_BATTERY_STC3100 is not set
|
||||
CONFIG_BATTERY_BQ27510=y
|
||||
# CONFIG_BATTERY_BQ27510 is not set
|
||||
CONFIG_BATTERY_BQ27541=y
|
||||
# CONFIG_BATTERY_BQ3060 is not set
|
||||
# CONFIG_CHECK_BATT_CAPACITY is not set
|
||||
CONFIG_NO_BATTERY_IC=y
|
||||
# CONFIG_HWMON is not set
|
||||
# CONFIG_THERMAL is not set
|
||||
# CONFIG_WATCHDOG is not set
|
||||
|
|
@ -1818,21 +1819,6 @@ CONFIG_ANDROID_LOW_MEMORY_KILLER=y
|
|||
# CONFIG_RAR_REGISTER is not set
|
||||
# CONFIG_IIO is not set
|
||||
|
||||
#
|
||||
# DSP
|
||||
#
|
||||
# CONFIG_RK2818_DSP is not set
|
||||
|
||||
#
|
||||
# RK1000 control
|
||||
#
|
||||
# CONFIG_RK1000_CONTROL is not set
|
||||
|
||||
#
|
||||
# rk2818 POWER CONTROL
|
||||
#
|
||||
# CONFIG_RK2818_POWER is not set
|
||||
|
||||
#
|
||||
# GPU Vivante
|
||||
#
|
||||
|
|
|
|||
|
|
@ -156,6 +156,12 @@ struct bq27510_platform_data {
|
|||
unsigned int bat_num;
|
||||
};
|
||||
|
||||
struct bq27541_platform_data {
|
||||
int (*init_dc_check_pin)(void);
|
||||
unsigned int dc_check_pin;
|
||||
unsigned int bat_num;
|
||||
};
|
||||
|
||||
/*i2s*/
|
||||
struct rk29_i2s_platform_data {
|
||||
int (*io_init)(void);
|
||||
|
|
|
|||
6
drivers/power/Kconfig
Executable file → Normal file
6
drivers/power/Kconfig
Executable file → Normal file
|
|
@ -142,6 +142,12 @@ config BATTERY_BQ27510
|
|||
depends on I2C && ARCH_RK29
|
||||
help
|
||||
Say Y here to enable support for batteries with BQ27510(I2C) chip.
|
||||
config BATTERY_BQ27541
|
||||
tristate "BQ27541 battery driver"
|
||||
select I2C_DEV_RK29
|
||||
depends on I2C && ARCH_RK29
|
||||
help
|
||||
Say Y here to enable support for batteries with BQ27541(I2C) chip.
|
||||
|
||||
config BATTERY_BQ3060
|
||||
tristate "BQ3060 battery driver"
|
||||
|
|
|
|||
3
drivers/power/Makefile
Executable file → Normal file
3
drivers/power/Makefile
Executable file → Normal file
|
|
@ -33,4 +33,5 @@ obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
|
|||
obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
|
||||
obj-$(CONFIG_BATTERY_STC3100) += stc3100_battery.o
|
||||
obj-$(CONFIG_BATTERY_BQ27510) += bq27510_battery.o
|
||||
obj-$(CONFIG_BATTERY_BQ3060) += bq3060_battery.o
|
||||
obj-$(CONFIG_BATTERY_BQ27541) += bq27541_battery.o
|
||||
obj-$(CONFIG_BATTERY_BQ3060) += bq3060_battery.o
|
||||
|
|
|
|||
687
drivers/power/bq27541_battery.c
Executable file
687
drivers/power/bq27541_battery.c
Executable file
|
|
@ -0,0 +1,687 @@
|
|||
/*
|
||||
* BQ27510 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>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <mach/board.h>
|
||||
|
||||
|
||||
#define DRIVER_VERSION "1.1.0"
|
||||
#define BQ27x00_REG_TEMP 0x06
|
||||
#define BQ27x00_REG_VOLT 0x08
|
||||
#define BQ27x00_REG_AI 0x14
|
||||
#define BQ27x00_REG_FLAGS 0x0A
|
||||
#define BQ27x00_REG_TTE 0x16
|
||||
#define BQ27x00_REG_TTF 0x18
|
||||
#define BQ27x00_REG_TTECP 0x26
|
||||
#define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */
|
||||
#define BQ27500_REG_SOC 0x2c
|
||||
|
||||
#define BQ27500_FLAG_DSC BIT(0)
|
||||
#define BQ27000_FLAG_CHGS BIT(8)
|
||||
#define BQ27500_FLAG_FC BIT(9)
|
||||
#define BQ27500_FLAG_OTD BIT(14)
|
||||
#define BQ27500_FLAG_OTC BIT(15)
|
||||
|
||||
#define BQ27510_SPEED 100 * 1000
|
||||
int virtual_battery_enable = 0;
|
||||
extern int dwc_vbus_status(void);
|
||||
static void bq27541_set(void);
|
||||
|
||||
#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 bq27541_device_info {
|
||||
struct device *dev;
|
||||
struct power_supply bat;
|
||||
struct power_supply ac;
|
||||
struct delayed_work work;
|
||||
struct i2c_client *client;
|
||||
unsigned int interval;
|
||||
unsigned int dc_check_pin;
|
||||
unsigned int bat_num;
|
||||
};
|
||||
|
||||
static struct bq27541_device_info *bq27541_di;
|
||||
static enum power_supply_property bq27541_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_TECHNOLOGY,
|
||||
POWER_SUPPLY_PROP_HEALTH,
|
||||
//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,
|
||||
};
|
||||
|
||||
static ssize_t battery_proc_write(struct file *file,const char __user *buffer,
|
||||
unsigned long count,void *data)
|
||||
{
|
||||
char c;
|
||||
int rc;
|
||||
printk("USER:\n");
|
||||
printk("echo x >/proc/driver/power\n");
|
||||
printk("x=1,means just print log ||x=2,means log and data ||x= other,means close log\n");
|
||||
|
||||
rc = get_user(c,buffer);
|
||||
if(rc)
|
||||
return rc;
|
||||
if(c == '1')
|
||||
virtual_battery_enable = 1;
|
||||
else if(c == '2')
|
||||
virtual_battery_enable = 2;
|
||||
else if(c == '3')
|
||||
virtual_battery_enable = 3;
|
||||
else if(c == '9'){
|
||||
printk("%s:%d>>bq27541 set\n",__FUNCTION__,__LINE__);
|
||||
bq27541_set();
|
||||
}
|
||||
else
|
||||
virtual_battery_enable = 0;
|
||||
printk("%s,count(%d),virtual_battery_enable(%d)\n",__FUNCTION__,(int)count,virtual_battery_enable);
|
||||
return count;
|
||||
}
|
||||
|
||||
static const struct file_operations battery_proc_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.write = battery_proc_write,
|
||||
};
|
||||
|
||||
/*
|
||||
* Common code for BQ27510 devices read
|
||||
*/
|
||||
static int bq27541_read(struct i2c_client *client, u8 reg, u8 buf[], unsigned len)
|
||||
{
|
||||
int ret;
|
||||
ret = i2c_master_reg8_recv(client, reg, buf, len, BQ27510_SPEED);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bq27541_write(struct i2c_client *client, u8 reg, u8 const buf[], unsigned len)
|
||||
{
|
||||
int ret;
|
||||
ret = i2c_master_reg8_send(client, reg, buf, (int)len, BQ27510_SPEED);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the battery temperature in tenths of degree Celsius
|
||||
* Or < 0 if something fails.
|
||||
*/
|
||||
static int bq27541_battery_temperature(struct bq27541_device_info *di)
|
||||
{
|
||||
int ret;
|
||||
int temp = 0;
|
||||
u8 buf[2] ={0};
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
return 258;
|
||||
#endif
|
||||
|
||||
if(virtual_battery_enable == 1)
|
||||
return 125/*258*/;
|
||||
ret = bq27541_read(di->client,BQ27x00_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; //K
|
||||
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 bq27541_battery_voltage(struct bq27541_device_info *di)
|
||||
{
|
||||
int ret;
|
||||
u8 buf[2] = {0};
|
||||
int volt = 0;
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
return 4000000;
|
||||
#endif
|
||||
if(virtual_battery_enable == 1)
|
||||
return 2000000/*4000000*/;
|
||||
|
||||
ret = bq27541_read(di->client,BQ27x00_REG_VOLT,buf,2);
|
||||
if (ret<0) {
|
||||
dev_err(di->dev, "error reading voltage\n");
|
||||
return ret;
|
||||
}
|
||||
volt = get_unaligned_le16(buf);
|
||||
|
||||
//bp27510 can only measure one li-lion bat
|
||||
if(di->bat_num == 2){
|
||||
volt = volt * 1000 * 2;
|
||||
}else{
|
||||
volt = volt * 1000;
|
||||
}
|
||||
|
||||
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 bq27541_battery_current(struct bq27541_device_info *di)
|
||||
{
|
||||
int ret;
|
||||
int curr = 0;
|
||||
u8 buf[2] = {0};
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
return 22000;
|
||||
#endif
|
||||
if(virtual_battery_enable == 1)
|
||||
return 11000/*22000*/;
|
||||
ret = bq27541_read(di->client,BQ27x00_REG_AI,buf,2);
|
||||
if (ret<0) {
|
||||
dev_err(di->dev, "error reading current\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
curr = get_unaligned_le16(buf);
|
||||
DBG("curr = %x \n",curr);
|
||||
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 bq27541_battery_rsoc(struct bq27541_device_info *di)
|
||||
{
|
||||
int ret;
|
||||
int rsoc = 0;
|
||||
#if 0
|
||||
int nvcap = 0,facap = 0,remcap=0,fccap=0,full=0,cnt=0;
|
||||
int art = 0, artte = 0, ai = 0, tte = 0, ttf = 0, si = 0;
|
||||
int stte = 0, mli = 0, mltte = 0, ae = 0, ap = 0, ttecp = 0, cc = 0;
|
||||
#endif
|
||||
u8 buf[2];
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
return 100;
|
||||
#endif
|
||||
if(virtual_battery_enable == 1)
|
||||
return 50/*100*/;
|
||||
|
||||
ret = bq27541_read(di->client,BQ27500_REG_SOC,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--rsoc = %d\n",__FUNCTION__,__LINE__,rsoc);
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
rsoc = 100;
|
||||
#endif
|
||||
#if 0 //other register information, for debug use
|
||||
ret = bq27541_read(di->client,0x0c,buf,2); //NominalAvailableCapacity
|
||||
nvcap = get_unaligned_le16(buf);
|
||||
DBG("\nEnter:%s %d--nvcap = %d\n",__FUNCTION__,__LINE__,nvcap);
|
||||
ret = bq27541_read(di->client,0x0e,buf,2); //FullAvailableCapacity
|
||||
facap = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--facap = %d\n",__FUNCTION__,__LINE__,facap);
|
||||
ret = bq27541_read(di->client,0x10,buf,2); //RemainingCapacity
|
||||
remcap = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--remcap = %d\n",__FUNCTION__,__LINE__,remcap);
|
||||
ret = bq27541_read(di->client,0x12,buf,2); //FullChargeCapacity
|
||||
fccap = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--fccap = %d\n",__FUNCTION__,__LINE__,fccap);
|
||||
ret = bq27541_read(di->client,0x3c,buf,2); //DesignCapacity
|
||||
full = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--DesignCapacity = %d\n",__FUNCTION__,__LINE__,full);
|
||||
|
||||
buf[0] = 0x00; //CONTROL_STATUS
|
||||
buf[1] = 0x00;
|
||||
bq27541_write(di->client,0x00,buf,2);
|
||||
ret = bq27541_read(di->client,0x00,buf,2);
|
||||
cnt = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--Control status = %x\n",__FUNCTION__,__LINE__,cnt);
|
||||
|
||||
ret = bq27541_read(di->client,0x02,buf,2); //AtRate
|
||||
art = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--AtRate = %d\n",__FUNCTION__,__LINE__,art);
|
||||
ret = bq27541_read(di->client,0x04,buf,2); //AtRateTimeToEmpty
|
||||
artte = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--AtRateTimeToEmpty = %d\n",__FUNCTION__,__LINE__,artte);
|
||||
ret = bq27541_read(di->client,0x14,buf,2); //AverageCurrent
|
||||
ai = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--AverageCurrent = %d\n",__FUNCTION__,__LINE__,ai);
|
||||
ret = bq27541_read(di->client,0x16,buf,2); //TimeToEmpty
|
||||
tte = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--TimeToEmpty = %d\n",__FUNCTION__,__LINE__,tte);
|
||||
ret = bq27541_read(di->client,0x18,buf,2); //TimeToFull
|
||||
ttf = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--TimeToFull = %d\n",__FUNCTION__,__LINE__,ttf);
|
||||
ret = bq27541_read(di->client,0x1a,buf,2); //StandbyCurrent
|
||||
si = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--StandbyCurrent = %d\n",__FUNCTION__,__LINE__,si);
|
||||
ret = bq27541_read(di->client,0x1c,buf,2); //StandbyTimeToEmpty
|
||||
stte = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--StandbyTimeToEmpty = %d\n",__FUNCTION__,__LINE__,stte);
|
||||
ret = bq27541_read(di->client,0x1e,buf,2); //MaxLoadCurrent
|
||||
mli = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--MaxLoadCurrent = %d\n",__FUNCTION__,__LINE__,mli);
|
||||
ret = bq27541_read(di->client,0x20,buf,2); //MaxLoadTimeToEmpty
|
||||
mltte = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--MaxLoadTimeToEmpty = %d\n",__FUNCTION__,__LINE__,mltte);
|
||||
ret = bq27541_read(di->client,0x22,buf,2); //AvailableEnergy
|
||||
ae = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--AvailableEnergy = %d\n",__FUNCTION__,__LINE__,ae);
|
||||
ret = bq27541_read(di->client,0x24,buf,2); //AveragePower
|
||||
ap = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--AveragePower = %d\n",__FUNCTION__,__LINE__,ap);
|
||||
ret = bq27541_read(di->client,0x26,buf,2); //TTEatConstantPower
|
||||
ttecp = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--TTEatConstantPower = %d\n",__FUNCTION__,__LINE__,ttecp);
|
||||
ret = bq27541_read(di->client,0x2a,buf,2); //CycleCount
|
||||
cc = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--CycleCount = %d\n",__FUNCTION__,__LINE__,cc);
|
||||
#endif
|
||||
return rsoc;
|
||||
}
|
||||
|
||||
static int bq27541_battery_status(struct bq27541_device_info *di,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
u8 buf[2] = {0};
|
||||
int flags = 0;
|
||||
int status = 0;
|
||||
int ret = 0;
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
val->intval = POWER_SUPPLY_STATUS_FULL;
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
if(virtual_battery_enable == 1)
|
||||
{
|
||||
val->intval = POWER_SUPPLY_STATUS_FULL;
|
||||
return 0;
|
||||
}
|
||||
ret = bq27541_read(di->client,BQ27x00_REG_FLAGS, buf, 2);
|
||||
if (ret < 0) {
|
||||
dev_err(di->dev, "error reading flags\n");
|
||||
return ret;
|
||||
}
|
||||
flags = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--status = %x\n",__FUNCTION__,__LINE__,flags);
|
||||
if (flags & BQ27500_FLAG_FC)
|
||||
status = POWER_SUPPLY_STATUS_FULL;
|
||||
else if (flags & BQ27500_FLAG_DSC)
|
||||
status = POWER_SUPPLY_STATUS_DISCHARGING;
|
||||
else
|
||||
status = POWER_SUPPLY_STATUS_CHARGING;
|
||||
|
||||
val->intval = status;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bq27541_health_status(struct bq27541_device_info *di,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
u8 buf[2] = {0};
|
||||
int flags = 0;
|
||||
int status;
|
||||
int ret;
|
||||
|
||||
#if defined (CONFIG_NO_BATTERY_IC)
|
||||
val->intval = POWER_SUPPLY_HEALTH_GOOD;
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
if(virtual_battery_enable == 1)
|
||||
{
|
||||
val->intval = POWER_SUPPLY_HEALTH_GOOD;
|
||||
return 0;
|
||||
}
|
||||
ret = bq27541_read(di->client,BQ27x00_REG_FLAGS, buf, 2);
|
||||
if (ret < 0) {
|
||||
dev_err(di->dev, "error reading flags\n");
|
||||
return ret;
|
||||
}
|
||||
flags = get_unaligned_le16(buf);
|
||||
DBG("Enter:%s %d--status = %x\n",__FUNCTION__,__LINE__,flags);
|
||||
|
||||
if ((flags & BQ27500_FLAG_OTD)||(flags & BQ27500_FLAG_OTC))
|
||||
status = POWER_SUPPLY_HEALTH_OVERHEAT;
|
||||
else
|
||||
status = POWER_SUPPLY_HEALTH_GOOD;
|
||||
|
||||
|
||||
|
||||
val->intval = status;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Read a time register.
|
||||
* Return < 0 if something fails.
|
||||
*/
|
||||
static int bq27541_battery_time(struct bq27541_device_info *di, int reg,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
u8 buf[2] = {0};
|
||||
int tval = 0;
|
||||
int ret;
|
||||
|
||||
ret = bq27541_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_bq27541_device_info(x) container_of((x), \
|
||||
struct bq27541_device_info, bat);
|
||||
|
||||
static int bq27541_battery_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
int ret = 0;
|
||||
struct bq27541_device_info *di = to_bq27541_device_info(psy);
|
||||
DBG("Enter:%s %d psp= %d\n",__FUNCTION__,__LINE__,psp);
|
||||
|
||||
switch (psp) {
|
||||
|
||||
case POWER_SUPPLY_PROP_STATUS:
|
||||
ret = bq27541_battery_status(di, val);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
|
||||
case POWER_SUPPLY_PROP_PRESENT:
|
||||
val->intval = bq27541_battery_voltage(di);
|
||||
if (psp == POWER_SUPPLY_PROP_PRESENT)
|
||||
val->intval = val->intval <= 0 ? 0 : 1;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
||||
val->intval = bq27541_battery_current(di);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CAPACITY:
|
||||
val->intval = bq27541_battery_rsoc(di);
|
||||
break;
|
||||
|
||||
case POWER_SUPPLY_PROP_TEMP:
|
||||
val->intval = bq27541_battery_temperature(di);
|
||||
break;
|
||||
|
||||
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
||||
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_HEALTH:
|
||||
ret = bq27541_health_status(di, val);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
|
||||
ret = bq27541_battery_time(di, BQ27x00_REG_TTE, val);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
|
||||
ret = bq27541_battery_time(di, BQ27x00_REG_TTECP, val);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
|
||||
ret = bq27541_battery_time(di, BQ27x00_REG_TTF, val);
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rk29_ac_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
int ret = 0;
|
||||
struct bq27541_device_info *di = container_of(psy, struct bq27541_device_info, ac);
|
||||
|
||||
switch (psp) {
|
||||
case POWER_SUPPLY_PROP_ONLINE:
|
||||
if (psy->type == POWER_SUPPLY_TYPE_MAINS){
|
||||
if(gpio_get_value(di->dc_check_pin))
|
||||
val->intval = 0; /*discharging*/
|
||||
else
|
||||
val->intval = 1; /*charging*/
|
||||
}
|
||||
DBG("%s:%d val->intval = %d\n",__FUNCTION__,__LINE__,val->intval);
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void bq27541_powersupply_init(struct bq27541_device_info *di)
|
||||
{
|
||||
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
|
||||
di->bat.properties = bq27541_battery_props;
|
||||
di->bat.num_properties = ARRAY_SIZE(bq27541_battery_props);
|
||||
di->bat.get_property = bq27541_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;
|
||||
}
|
||||
|
||||
|
||||
static void bq27541_battery_update_status(struct bq27541_device_info *di)
|
||||
{
|
||||
power_supply_changed(&di->bat);
|
||||
}
|
||||
|
||||
static void bq27541_battery_work(struct work_struct *work)
|
||||
{
|
||||
struct bq27541_device_info *di = container_of(work, struct bq27541_device_info, work.work);
|
||||
bq27541_battery_update_status(di);
|
||||
/* reschedule for the next time */
|
||||
schedule_delayed_work(&di->work, di->interval);
|
||||
}
|
||||
|
||||
static void bq27541_set(void)
|
||||
{
|
||||
struct bq27541_device_info *di;
|
||||
int i = 0;
|
||||
u8 buf[2];
|
||||
|
||||
di = bq27541_di;
|
||||
printk("enter 0x41\n");
|
||||
buf[0] = 0x41;
|
||||
buf[1] = 0x00;
|
||||
bq27541_write(di->client,0x00,buf,2);
|
||||
|
||||
msleep(1500);
|
||||
|
||||
printk("enter 0x21\n");
|
||||
buf[0] = 0x21;
|
||||
buf[1] = 0x00;
|
||||
bq27541_write(di->client,0x00,buf,2);
|
||||
|
||||
buf[0] = 0;
|
||||
buf[1] = 0;
|
||||
bq27541_read(di->client,0x00,buf,2);
|
||||
|
||||
// printk("%s: Enter:BUF[0]= 0X%x BUF[1] = 0X%x\n",__FUNCTION__,buf[0],buf[1]);
|
||||
|
||||
while((buf[0] & 0x04)&&(i<5))
|
||||
{
|
||||
printk("enter more 0x21 times i = %d\n",i);
|
||||
mdelay(1000);
|
||||
buf[0] = 0x21;
|
||||
buf[1] = 0x00;
|
||||
bq27541_write(di->client,0x00,buf,2);
|
||||
|
||||
buf[0] = 0;
|
||||
buf[1] = 0;
|
||||
bq27541_read(di->client,0x00,buf,2);
|
||||
i++;
|
||||
}
|
||||
|
||||
if(i>5)
|
||||
printk("write 0x21 error\n");
|
||||
else
|
||||
printk("bq27541 write 0x21 success\n");
|
||||
}
|
||||
|
||||
static int bq27541_battery_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct bq27541_device_info *di;
|
||||
int retval = 0;
|
||||
struct bq27541_platform_data *pdata;
|
||||
|
||||
DBG("********** bq27541_battery_probe************** ");
|
||||
pdata = client->dev.platform_data;
|
||||
|
||||
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 = "bq27541-battery";
|
||||
di->client = client;
|
||||
/* 4 seconds between monotor runs interval */
|
||||
di->interval = msecs_to_jiffies(4 * 1000);
|
||||
|
||||
di->bat_num = pdata->bat_num;
|
||||
di->dc_check_pin = pdata->dc_check_pin;
|
||||
|
||||
if (pdata->init_dc_check_pin)
|
||||
pdata->init_dc_check_pin( );
|
||||
|
||||
bq27541_powersupply_init(di);
|
||||
|
||||
retval = power_supply_register(&client->dev, &di->bat);
|
||||
if (retval) {
|
||||
dev_err(&client->dev, "failed to register battery\n");
|
||||
goto batt_failed_4;
|
||||
}
|
||||
bq27541_di = di;
|
||||
retval = power_supply_register(&client->dev, &di->ac);
|
||||
if (retval) {
|
||||
dev_err(&client->dev, "failed to register ac\n");
|
||||
goto batt_failed_4;
|
||||
}
|
||||
INIT_DELAYED_WORK(&di->work, bq27541_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 bq27541_battery_remove(struct i2c_client *client)
|
||||
{
|
||||
struct bq27541_device_info *di = i2c_get_clientdata(client);
|
||||
|
||||
power_supply_unregister(&di->bat);
|
||||
kfree(di->bat.name);
|
||||
kfree(di);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id bq27541_id[] = {
|
||||
{ "bq27541", 0 },
|
||||
};
|
||||
|
||||
static struct i2c_driver bq27541_battery_driver = {
|
||||
.driver = {
|
||||
.name = "bq27541",
|
||||
},
|
||||
.probe = bq27541_battery_probe,
|
||||
.remove = bq27541_battery_remove,
|
||||
.id_table = bq27541_id,
|
||||
};
|
||||
|
||||
static int __init bq27541_battery_init(void)
|
||||
{
|
||||
int ret;
|
||||
struct proc_dir_entry * battery_proc_entry;
|
||||
|
||||
ret = i2c_add_driver(&bq27541_battery_driver);
|
||||
if (ret)
|
||||
printk(KERN_ERR "Unable to register BQ27541 driver\n");
|
||||
|
||||
battery_proc_entry = proc_create("driver/power",0777,NULL,&battery_proc_fops);
|
||||
return ret;
|
||||
}
|
||||
module_init(bq27541_battery_init);
|
||||
|
||||
static void __exit bq27541_battery_exit(void)
|
||||
{
|
||||
i2c_del_driver(&bq27541_battery_driver);
|
||||
}
|
||||
module_exit(bq27541_battery_exit);
|
||||
|
||||
MODULE_AUTHOR("clb");
|
||||
MODULE_DESCRIPTION("BQ27541 battery monitor driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user