int mxt_get_sensor_vendor(void)
{
int val = -1;
struct twl6030_gpadc_request req;
req.channels = (1 << GPADC_CHANNEL_TOUCH_VENDOR);
req.method = TWL6032_GPADC_SW2;
req.active = 0;
req.func_cb = NULL;
val = twl6030_gpadc_conversion(&req);
if (val < 0) { /* failure */
printk("Atmel touch sensor vendor get gpadc value failure %d\n", val);
}
else {
val = req.rbuf[GPADC_CHANNEL_TOUCH_VENDOR];
printk("Atmel touch sensor vendor get gpadc value %d\n", val);
if (val < 515) return ATMEL_TOUCH_SENSOR_VENDOR_TPK; /* this value is for compatible with tate pre-EVT2.0 devices */
else if (val < 550) return ATMEL_TOUCH_SENSOR_VENDOR_TPK;
else if (val < 617) return ATMEL_TOUCH_SENSOR_VENDOR_WINTEK;
else if (val < 678) return ATMEL_TOUCH_SENSOR_VENDOR_CMI;
else if (val < 725) return ATMEL_TOUCH_SENSOR_VENDOR_HANNSTOUCH;
else return -1;
}
return val;
}
int get_pcb_therm()
{
struct twl6030_gpadc_request req;
int ret;
req.channels = (1 << PCB_THM_ADC_CHANNEL);
req.method = TWL6030_GPADC_SW2;
req.func_cb = NULL;
ret = twl6030_gpadc_conversion(&req);
return adc_to_temp_conversion(req.buf[PCB_THM_ADC_CHANNEL].code);
}
static int pcb_read_current_temp(struct pcb_temp_sensor *temp_sensor)
{
int temp = 0;
struct twl6030_gpadc_request req;
int val;
req.channels = (1 << TWL6030_GPADC_CHANNEL);
req.method = TWL6030_GPADC_SW2;
req.func_cb = NULL;
val = twl6030_gpadc_conversion(&req);
if (val < 0) {
pr_err("%s:TWL6030_GPADC conversion is invalid %d\n",
__func__, val);
return -EINVAL;
}
temp = adc_to_temp_conversion(req.rbuf[TWL6030_GPADC_CHANNEL]);
return temp;
}
/*
* Return battery voltage
* Or < 0 on failure.
*/
static int twl6030battery_voltage(void)
{
struct twl6030_gpadc_request req;
int temp, temp2;
req.channels = (1 << 7) | (1 << 10);
req.method = TWL6030_GPADC_SW1;
req.active = 0;
req.func_cb = NULL;
twl6030_gpadc_conversion(&req);
temp = (u16)req.rbuf[7] * 25/4; /* multiply by 6.25 to convert to mV */
if (charger_source == 2)
temp2 = (u16)req.rbuf[10];
/* FIXME only for USB charging current*/
return temp;
}
/*
* Return channel value
* Or < 0 on failure.
*/
static int charger_get_gpadc_conversion(struct charger_info *di, int channel_no)
{
struct twl6030_gpadc_request req;
int temp = 0;
int ret;
req.channels = (1 << channel_no);
req.method = TWL6030_GPADC_SW2;
req.active = 0;
req.func_cb = NULL;
ret = twl6030_gpadc_conversion(&req);
if (ret < 0)
return ret;
if (req.rbuf[channel_no] > 0)
temp = req.rbuf[channel_no];
return temp;
}
