#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 DRIVER_VERSION "1.1.0"
#define BQ27x00_REG_TEMP 0x06
#define BQ27x00_REG_VOLT 0x08
#define BQ27x00_REG_AI 0x14
#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 BQ27000_FLAG_CHGS BIT(7)
-
#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 300 * 1000
+int virtual_battery_enable = 0;
+extern int dwc_vbus_status(void);
+static void bq27510_set(void);
#if 0
#define DBG(x...) printk(KERN_INFO x)
struct bq27510_device_info {
struct device *dev;
struct power_supply bat;
+ struct power_supply ac;
struct delayed_work work;
- unsigned int interval;
struct i2c_client *client;
+ unsigned int interval;
+ unsigned int dc_check_pin;
+ unsigned int bat_num;
};
+static struct bq27510_device_info *bq27510_di;
static enum power_supply_property bq27510_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_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,
+ size_t count, loff_t *ppos)
+{
+ 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;
+
+ //added by zwp,c='8' means check whether we need to download firmware to bq27xxx,return 0 means yes.
+ if(c == '8'){
+ printk("%s,bq27510 need to download firmware\n",__FUNCTION__);
+ }
+
+ 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>>bq27510 set\n",__FUNCTION__,__LINE__);
+ bq27510_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 bq27510_read(struct i2c_client *client, u8 reg, u8 buf[], unsigned len)
{
- int ret;
+ int ret;
ret = i2c_master_reg8_recv(client, reg, buf, len, BQ27510_SPEED);
return ret;
}
+static int bq27510_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.
int ret;
int temp = 0;
u8 buf[2];
+
+ #if defined (CONFIG_NO_BATTERY_IC)
+ return 258;
+ #endif
+
+ if(virtual_battery_enable == 1)
+ return 125/*258*/;
ret = bq27510_read(di->client,BQ27x00_REG_TEMP,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading temperature\n");
u8 buf[2];
int volt = 0;
+ #if defined (CONFIG_NO_BATTERY_IC)
+ return 4000000;
+ #endif
+ if(virtual_battery_enable == 1)
+ return 2000000/*4000000*/;
+
ret = bq27510_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);
- volt = volt * 1000;
+
+ //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;
}
int curr = 0;
u8 buf[2];
+ #if defined (CONFIG_NO_BATTERY_IC)
+ return 22000;
+ #endif
+ if(virtual_battery_enable == 1)
+ return 11000/*22000*/;
ret = bq27510_read(di->client,BQ27x00_REG_AI,buf,2);
if (ret<0) {
dev_err(di->dev, "error reading current\n");
}
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;
{
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 = bq27510_read(di->client,BQ27500_REG_SOC,buf,2);
if (ret<0) {
}
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 = bq27510_read(di->client,0x0c,buf,2); //NominalAvailableCapacity
+ nvcap = get_unaligned_le16(buf);
+ DBG("\nEnter:%s %d--nvcap = %d\n",__FUNCTION__,__LINE__,nvcap);
+ ret = bq27510_read(di->client,0x0e,buf,2); //FullAvailableCapacity
+ facap = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--facap = %d\n",__FUNCTION__,__LINE__,facap);
+ ret = bq27510_read(di->client,0x10,buf,2); //RemainingCapacity
+ remcap = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--remcap = %d\n",__FUNCTION__,__LINE__,remcap);
+ ret = bq27510_read(di->client,0x12,buf,2); //FullChargeCapacity
+ fccap = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--fccap = %d\n",__FUNCTION__,__LINE__,fccap);
+ ret = bq27510_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;
+ bq27510_write(di->client,0x00,buf,2);
+ ret = bq27510_read(di->client,0x00,buf,2);
+ cnt = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--Control status = %x\n",__FUNCTION__,__LINE__,cnt);
+
+ ret = bq27510_read(di->client,0x02,buf,2); //AtRate
+ art = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--AtRate = %d\n",__FUNCTION__,__LINE__,art);
+ ret = bq27510_read(di->client,0x04,buf,2); //AtRateTimeToEmpty
+ artte = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--AtRateTimeToEmpty = %d\n",__FUNCTION__,__LINE__,artte);
+ ret = bq27510_read(di->client,0x14,buf,2); //AverageCurrent
+ ai = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--AverageCurrent = %d\n",__FUNCTION__,__LINE__,ai);
+ ret = bq27510_read(di->client,0x16,buf,2); //TimeToEmpty
+ tte = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--TimeToEmpty = %d\n",__FUNCTION__,__LINE__,tte);
+ ret = bq27510_read(di->client,0x18,buf,2); //TimeToFull
+ ttf = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--TimeToFull = %d\n",__FUNCTION__,__LINE__,ttf);
+ ret = bq27510_read(di->client,0x1a,buf,2); //StandbyCurrent
+ si = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--StandbyCurrent = %d\n",__FUNCTION__,__LINE__,si);
+ ret = bq27510_read(di->client,0x1c,buf,2); //StandbyTimeToEmpty
+ stte = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--StandbyTimeToEmpty = %d\n",__FUNCTION__,__LINE__,stte);
+ ret = bq27510_read(di->client,0x1e,buf,2); //MaxLoadCurrent
+ mli = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--MaxLoadCurrent = %d\n",__FUNCTION__,__LINE__,mli);
+ ret = bq27510_read(di->client,0x20,buf,2); //MaxLoadTimeToEmpty
+ mltte = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--MaxLoadTimeToEmpty = %d\n",__FUNCTION__,__LINE__,mltte);
+ ret = bq27510_read(di->client,0x22,buf,2); //AvailableEnergy
+ ae = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--AvailableEnergy = %d\n",__FUNCTION__,__LINE__,ae);
+ ret = bq27510_read(di->client,0x24,buf,2); //AveragePower
+ ap = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--AveragePower = %d\n",__FUNCTION__,__LINE__,ap);
+ ret = bq27510_read(di->client,0x26,buf,2); //TTEatConstantPower
+ ttecp = get_unaligned_le16(buf);
+ DBG("Enter:%s %d--TTEatConstantPower = %d\n",__FUNCTION__,__LINE__,ttecp);
+ ret = bq27510_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;
}
int status;
int ret;
+ #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 = bq27510_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)
return 0;
}
+static int bq27510_health_status(struct bq27510_device_info *di,
+ union power_supply_propval *val)
+{
+ u8 buf[2];
+ 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 = bq27510_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.
return ret;
}
tval = get_unaligned_le16(buf);
- DBG("Enter:%s %d--no battery data\n",__FUNCTION__,__LINE__,val->intval);
+ DBG("Enter:%s %d--tval=%d\n",__FUNCTION__,__LINE__,tval);
if (tval == 65535)
return -ENODATA;
{
int ret = 0;
struct bq27510_device_info *di = to_bq27510_device_info(psy);
-
+ DBG("Enter:%s %d psp= %d\n",__FUNCTION__,__LINE__,psp);
+
switch (psp) {
+
case POWER_SUPPLY_PROP_STATUS:
ret = bq27510_battery_status(di, val);
break;
val->intval = bq27510_battery_current(di);
break;
case POWER_SUPPLY_PROP_CAPACITY:
- val->intval = 100; ///bq27510_battery_rsoc(di);
+ val->intval = bq27510_battery_rsoc(di);
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = bq27510_battery_temperature(di);
break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ ret = bq27510_health_status(di, val);
+ break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
ret = bq27510_battery_time(di, BQ27x00_REG_TTE, val);
break;
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 bq27510_device_info *di = container_of(psy, struct bq27510_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 bq27510_powersupply_init(struct bq27510_device_info *di)
{
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
di->bat.properties = bq27510_battery_props;
di->bat.num_properties = ARRAY_SIZE(bq27510_battery_props);
di->bat.get_property = bq27510_battery_get_property;
- di->bat.external_power_changed = NULL;
+
+ 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 bq27510_battery_update_status(struct bq27510_device_info *di)
{
power_supply_changed(&di->bat);
schedule_delayed_work(&di->work, di->interval);
}
+static void bq27510_set(void)
+{
+ struct bq27510_device_info *di;
+ int i = 0;
+ u8 buf[2];
+
+ di = bq27510_di;
+ printk("enter 0x41\n");
+ buf[0] = 0x41;
+ buf[1] = 0x00;
+ bq27510_write(di->client,0x00,buf,2);
+
+ msleep(1500);
+
+ printk("enter 0x21\n");
+ buf[0] = 0x21;
+ buf[1] = 0x00;
+ bq27510_write(di->client,0x00,buf,2);
+
+ buf[0] = 0;
+ buf[1] = 0;
+ bq27510_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;
+ bq27510_write(di->client,0x00,buf,2);
+
+ buf[0] = 0;
+ buf[1] = 0;
+ bq27510_read(di->client,0x00,buf,2);
+ i++;
+ }
+
+ if(i>5)
+ printk("write 0x21 error\n");
+ else
+ printk("bq27510 write 0x21 success\n");
+}
+
static int bq27510_battery_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bq27510_device_info *di;
int retval = 0;
-
+ struct bq27510_platform_data *pdata;
+
+ pdata = client->dev.platform_data;
+
di = kzalloc(sizeof(*di), GFP_KERNEL);
if (!di) {
dev_err(&client->dev, "failed to allocate device info data\n");
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( );
+
bq27510_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;
}
+ bq27510_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, bq27510_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:
return 0;
}
-/*
- * Module stuff
- */
-
static const struct i2c_device_id bq27510_id[] = {
{ "bq27510", 0 },
};
static struct i2c_driver bq27510_battery_driver = {
.driver = {
- .name = "bq27510-battery",
+ .name = "bq27510",
},
.probe = bq27510_battery_probe,
.remove = bq27510_battery_remove,
static int __init bq27510_battery_init(void)
{
int ret;
-
+ struct proc_dir_entry * battery_proc_entry;
+
ret = i2c_add_driver(&bq27510_battery_driver);
if (ret)
printk(KERN_ERR "Unable to register BQ27510 driver\n");
+
+ battery_proc_entry = proc_create("driver/power",0777,NULL,&battery_proc_fops);
return ret;
}
module_init(bq27510_battery_init);
projects / firefly-linux-kernel-4.4.55.git / blobdiff