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);
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");
}
/*
* 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;
int flags = 0;
int status = 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--read rsoc = %d\n",__FUNCTION__,__LINE__,rsoc);
/* covert the capacity range */
rsoc = min(rsoc, 100);
if ((g_pdata != NULL) && g_pdata->capacity_max && g_pdata->capacity_min) {
rsoc = max(rsoc, g_pdata->capacity_min);
rsoc = ((rsoc - g_pdata->capacity_min) * 100 +
(g_pdata->capacity_max - g_pdata->capacity_min) / 2)
/ (g_pdata->capacity_max - g_pdata->capacity_min);
}
bq27541_cap = rsoc;
/*check full flags,if not full, show 99%*/
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--flags = 0x%x\n",__FUNCTION__,__LINE__,flags);
if ((bq27541_cap > 99) && (flags & BQ27500_FLAG_FC))
status = POWER_SUPPLY_STATUS_FULL;
if(status != POWER_SUPPLY_STATUS_FULL)
rsoc = min(rsoc, 99);
DBG("Enter:%s %d--cal 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;
}
/*
* 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;
}
