static int get_hw_battery_temp(void)
{
int fd;
char buf[64];
char *pmtdbufp = NULL;
ssize_t pmtdsize;
char *pvalue = NULL;
int got_value=0;
//open file and read current value
fd = my_open("/sys/class/power_supply/battery/batt_temp", O_RDONLY);
if (fd < 0)
{
mtktsbattery_dprintk("[get_hw_battery_temp]: open file fail");
return 0;
}
mtktsbattery_dprintk("[get_hw_battery_temp]: open file ok");
buf[sizeof(buf) - 1] = '\0';
pmtdsize = sys_read(fd, buf, sizeof(buf) - 1);
pmtdbufp = buf;
got_value = simple_strtol(pmtdbufp,&pvalue,10);
// close file
my_close(fd);
// debug
mtktsbattery_dprintk("[get_hw_battery_temp]: got_value=%d\n", got_value);
return got_value;
}
static int mtktsbattery_get_hw_temp(void)
{
int t_ret=0;
static int battery[60]={0};
static int counter=0, first_time=0;
if(ts_battery_at_boot_time==0)
{
ts_battery_at_boot_time=1;
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] at boot time, return 25000 as default\n");
battery[counter]=25000;
counter++;
return 25000;
}
mutex_lock(&Battery_lock);
//get HW battery temp (TSBATTERY)
//cat /sys/class/power_supply/battery/batt_temp
t_ret = get_hw_battery_temp();
t_ret = t_ret * 100;
mutex_unlock(&Battery_lock);
if(t_ret)
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] counter=%d, first_time =%d\n", counter, first_time);
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] T_Battery, %d\n", t_ret);
return t_ret;
}
static int mtktsbattery_get_hw_temp(void)
{
int t_ret=0;
static int battery[60]={0};
static int counter=0, first_time=0;
int i=0;
if(ts_battery_at_boot_time==0){
ts_battery_at_boot_time=1;
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] at boot time, return 25000 as default\n");
battery[counter]=25000;
counter++;
return 25000;
}
mutex_lock(&Battery_lock);
//if(battery_write_flag==1)
//{
// counter=0;
// first_time=0;
// battery_write_flag=0;
//}
//get HW battery temp (TSBATTERY)
//cat /sys/class/power_supply/battery/batt_temp
t_ret = get_hw_battery_temp();
t_ret = t_ret * 100;
battery[counter]=t_ret;
if(first_time!=0)
{
t_ret = 0;
for(i=0; i<MA_len; i++)
{
t_ret += battery[i];
}
t_ret = t_ret / MA_len;
}
counter++;
if(counter==MA_len)
{
counter=0;
first_time=1;
}
if(counter>MA_len)
{
counter=0;
first_time=0;
}
mutex_unlock(&Battery_lock);
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] counter=%d, first_time =%d, MA_len=%d\n", counter, first_time, MA_len);
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] T_Battery, %d\n", t_ret);
return t_ret;
}
static int mtktsbattery_get_temp(struct thermal_zone_device *thermal,
unsigned long *t)
{
*t = (unsigned long)get_hw_battery_temp() * 1000;
mtktsbattery_dprintk("[mtktsbattery_get_hw_temp] T_Battery, %d\n", *t);
return 0;
}
static void mtktsbattery_unregister_thermal(void)
{
mtktsbattery_dprintk("[mtktsbattery_unregister_thermal] \n");
if (thz_dev) {
mtk_thermal_zone_device_unregister(thz_dev);
thz_dev = NULL;
}
}
static int mtktsbattery_register_thermal(void)
{
mtktsbattery_dprintk("[mtktsbattery_register_thermal] \n");
/* trips : trip 0~1 */
thz_dev = mtk_thermal_zone_device_register("mtktsbattery", num_trip, NULL,
&mtktsbattery_dev_ops, 0, 0, 0, interval*1000);
return 0;
}
static int mtktsbattery_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
int table_val=0;
table_val = mtkts_match(cdev,g_bind);
if(table_val >= MTK_TZ_COOLER_MAX)
{
return 0;
}
else
{
mtktsbattery_dprintk("[mtktsbattery_bind] %s\n", cdev->type);
if (mtk_thermal_zone_bind_cooling_device(thermal, table_val, cdev)) {
mtktsbattery_dprintk("[mtktsbattery_bind] error binding cooling dev\n");
return -EINVAL;
} else {
mtktsbattery_dprintk("[mtktsbattery_bind] binding OK, %d\n", table_val);
}
}
return 0;
}
static ssize_t mtktsbattery_write(struct file *file, const char *buffer, unsigned long count, void *data)
{
int len=0,time_msec=0;
int trip[MTK_TZ_COOLER_MAX]={0};
int t_type[MTK_TZ_COOLER_MAX]={0};
int i;
char bind[MTK_TZ_COOLER_MAX][THERMAL_NAME_LENGTH];
char desc[512];
len = (count < (sizeof(desc) - 1)) ? count : (sizeof(desc) - 1);
if (copy_from_user(desc, buffer, len))
{
return 0;
}
desc[len] = '\0';
if (sscanf(desc, "%d %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d",
&num_trip,
&trip[0],&t_type[0],bind[0], &trip[1],&t_type[1],bind[1],
&trip[2],&t_type[2],bind[2], &trip[3],&t_type[3],bind[3],
&trip[4],&t_type[4],bind[4], &trip[5],&t_type[5],bind[5],
&trip[6],&t_type[6],bind[6], &trip[7],&t_type[7],bind[7],
&trip[8],&t_type[8],bind[8], &trip[9],&t_type[9],bind[9],
&time_msec) == 32)
{
mtktsbattery_dprintk("[mtktsbattery_write] unregister_thermal\n");
mtktsbattery_unregister_thermal();
for(i=0; i<MTK_TZ_COOLER_MAX; i++)
{
g_THERMAL_TRIP[i] = t_type[i];
memcpy(g_bind[i], bind[i], THERMAL_NAME_LENGTH);
trip_temp[i]=trip[i];
}
interval=time_msec / 1000;
mtktsbattery_dprintk("[mtktsbattery_write] [trip_type]=%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\n",
g_THERMAL_TRIP[0],g_THERMAL_TRIP[1],g_THERMAL_TRIP[2],g_THERMAL_TRIP[3],g_THERMAL_TRIP[4],
g_THERMAL_TRIP[5],g_THERMAL_TRIP[6],g_THERMAL_TRIP[7],g_THERMAL_TRIP[8],g_THERMAL_TRIP[9]);
mtktsbattery_dprintk("[mtktsbattery_write] [cool_bind]=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s\n",
g_bind[0],g_bind[1],g_bind[2],g_bind[3],g_bind[4],g_bind[5],g_bind[6],g_bind[7],g_bind[8],g_bind[9]);
mtktsbattery_dprintk("[mtktsbattery_write] [trip_temp]==%d,%d,%d,%d,%d,%d,%d,%d,%d,%d, [time_ms]=%d\n",
trip_temp[0],trip_temp[1],trip_temp[2],trip_temp[3],trip_temp[4],
trip_temp[5],trip_temp[6],trip_temp[7],trip_temp[8],trip_temp[9],interval*1000);
mtktsbattery_dprintk("[mtktsbattery_write] register_thermal\n");
mtktsbattery_register_thermal();
return count;
}
else
{
mtktsbattery_dprintk("[mtktsbattery_write] bad argument\n");
}
return -EINVAL;
}
static int __init mtktsbattery_init(void)
{
int err = 0;
struct proc_dir_entry *entry = NULL;
struct proc_dir_entry *mtktsbattery_dir = NULL;
mtktsbattery_dprintk("[mtktsbattery_init] \n");
err = mtktsbattery_register_cooler();
if(err)
return err;
err = mtktsbattery_register_thermal();
if (err)
goto err_unreg;
mtktsbattery_dir = proc_mkdir("mtktsbattery", NULL);
if (!mtktsbattery_dir)
{
mtktsbattery_dprintk("[mtktsbattery_init]: mkdir /proc/mtktsbattery failed\n");
}
else
{
entry = create_proc_entry("mtktsbattery", S_IRUGO | S_IWUSR, mtktsbattery_dir);
if (entry)
{
entry->read_proc = mtktsbattery_read;
entry->write_proc = mtktsbattery_write;
}
}
return 0;
err_unreg:
mtktsbattery_unregister_cooler();
return err;
}
static int mtktsbattery_unbind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
{
int table_val=0;
if(!strcmp(cdev->type, g_bind0))
{
table_val = 0;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind1))
{
table_val = 1;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind2))
{
table_val = 2;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind3))
{
table_val = 3;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind4))
{
table_val = 4;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind5))
{
table_val = 5;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind6))
{
table_val = 6;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind7))
{
table_val = 7;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind8))
{
table_val = 8;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else if(!strcmp(cdev->type, g_bind9))
{
table_val = 9;
mtktsbattery_dprintk("[mtktsbattery_unbind] %s\n", cdev->type);
}
else
return 0;
if (thermal_zone_unbind_cooling_device(thermal, table_val, cdev)) {
mtktsbattery_dprintk("[mtktsbattery_unbind] error unbinding cooling dev\n");
return -EINVAL;
} else {
mtktsbattery_dprintk("[mtktsbattery_unbind] unbinding OK\n");
}
return 0;
}
static ssize_t mtktsbattery_write(struct file *file, const char *buffer, unsigned long count, void *data)
{
int len=0,time_msec=0;
int trip[10]={0};
int t_type[10]={0};
int i;
char bind0[20],bind1[20],bind2[20],bind3[20],bind4[20];
char bind5[20],bind6[20],bind7[20],bind8[20],bind9[20];
char desc[512];
len = (count < (sizeof(desc) - 1)) ? count : (sizeof(desc) - 1);
if (copy_from_user(desc, buffer, len))
{
return 0;
}
desc[len] = '\0';
if (sscanf(desc, "%d %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d %d %s %d",
&num_trip, &trip[0],&t_type[0],bind0, &trip[1],&t_type[1],bind1,
&trip[2],&t_type[2],bind2, &trip[3],&t_type[3],bind3,
&trip[4],&t_type[4],bind4, &trip[5],&t_type[5],bind5,
&trip[6],&t_type[6],bind6, &trip[7],&t_type[7],bind7,
&trip[8],&t_type[8],bind8, &trip[9],&t_type[9],bind9,
&time_msec) == 32)
{
mtktsbattery_dprintk("[mtktsbattery_write] mtktsbattery_unregister_thermal\n");
mtktsbattery_unregister_thermal();
for(i=0; i<num_trip; i++)
g_THERMAL_TRIP[i] = t_type[i];
g_bind0[0]=g_bind1[0]=g_bind2[0]=g_bind3[0]=g_bind4[0]=g_bind5[0]=g_bind6[0]=g_bind7[0]=g_bind8[0]=g_bind9[0]='\0';
for(i=0; i<20; i++)
{
g_bind0[i]=bind0[i];
g_bind1[i]=bind1[i];
g_bind2[i]=bind2[i];
g_bind3[i]=bind3[i];
g_bind4[i]=bind4[i];
g_bind5[i]=bind5[i];
g_bind6[i]=bind6[i];
g_bind7[i]=bind7[i];
g_bind8[i]=bind8[i];
g_bind9[i]=bind9[i];
}
mtktsbattery_dprintk("[mtktsbattery_write] g_THERMAL_TRIP_0=%d,g_THERMAL_TRIP_1=%d,g_THERMAL_TRIP_2=%d,g_THERMAL_TRIP_3=%d,g_THERMAL_TRIP_4=%d,\
g_THERMAL_TRIP_5=%d,g_THERMAL_TRIP_6=%d,g_THERMAL_TRIP_7=%d,g_THERMAL_TRIP_8=%d,g_THERMAL_TRIP_9=%d,\n",
g_THERMAL_TRIP[0],g_THERMAL_TRIP[1],g_THERMAL_TRIP[2],g_THERMAL_TRIP[3],g_THERMAL_TRIP[4],
g_THERMAL_TRIP[5],g_THERMAL_TRIP[6],g_THERMAL_TRIP[7],g_THERMAL_TRIP[8],g_THERMAL_TRIP[9]);
mtktsbattery_dprintk("[mtktsbattery_write] cooldev0=%s,cooldev1=%s,cooldev2=%s,cooldev3=%s,cooldev4=%s,\
cooldev5=%s,cooldev6=%s,cooldev7=%s,cooldev8=%s,cooldev9=%s\n",
g_bind0,g_bind1,g_bind2,g_bind3,g_bind4,g_bind5,g_bind6,g_bind7,g_bind8,g_bind9);
for(i=0; i<num_trip; i++)
{
trip_temp[i]=trip[i];
}
interval=time_msec / 1000;
mtktsbattery_dprintk("[mtktsbattery_write] trip_0_temp=%d,trip_1_temp=%d,trip_2_temp=%d,trip_3_temp=%d,trip_4_temp=%d,\
trip_5_temp=%d,trip_6_temp=%d,trip_7_temp=%d,trip_8_temp=%d,trip_9_temp=%d,time_ms=%d\n",
trip_temp[0],trip_temp[1],trip_temp[2],trip_temp[3],trip_temp[4],
trip_temp[5],trip_temp[6],trip_temp[7],trip_temp[8],trip_temp[9],interval*1000);
mtktsbattery_dprintk("[mtktsbattery_write] mtktsbattery_register_thermal\n");
mtktsbattery_register_thermal();
//battery_write_flag=1;
return count;
}
static void __exit mtktsbattery_exit(void)
{
mtktsbattery_dprintk("[mtktsbattery_exit] \n");
mtktsbattery_unregister_thermal();
mtktsbattery_unregister_cooler();
}