static int acc_get_adc_accessroy_id(struct s3c_adc_client *padc)
{
int adc_data;
#if defined(CONFIG_STMPE811_ADC)
adc_data = stmpe811_get_adc_data(ACCESSORY_ID_ADC_CH);
#else
adc_data = s3c_adc_read(padc, ACCESSORY_ID_ADC_CH);
#endif
/* ACC_CONDEV_DBG("[ACC] adc_data = %d..\n",adc_data); */
return adc_data;
}
static int sec_bat_adc_ap_read(unsigned int channel)
{
int data = -1;
switch (channel) {
case SEC_BAT_ADC_CHANNEL_TEMP:
data = s3c_adc_read(adc_client, 4);
break;
case SEC_BAT_ADC_CHANNEL_TEMP_AMBIENT:
data = 33000;
break;
}
return data;
}
static int gather_samples(struct s3c_adc_client *client, int num, int channel)
{
int value, i;
if (num < 1)
num = 1;
value = 0;
for (i = 0; i < num; i++)
value += s3c_adc_read(client, channel);
value /= num;
return value;
}
/**
* s3c_hwmon_read_ch - read a value from a given adc channel.
* @dev: The device.
* @hwmon: Our state.
* @channel: The channel we're reading from.
*
* Read a value from the @channel with the proper locking and sleep until
* either the read completes or we timeout awaiting the ADC core to get
* back to us.
*/
static int s3c_hwmon_read_ch(struct device *dev,
struct s3c_hwmon *hwmon, int channel)
{
int ret;
ret = mutex_lock_interruptible(&hwmon->lock);
if (ret < 0)
return ret;
dev_dbg(dev, "reading channel %d\n", channel);
ret = s3c_adc_read(hwmon->client, channel);
mutex_unlock(&hwmon->lock);
return ret;
}
static void sec_bat_check_batt_id(void)
{
int ret = 0;
ret = s3c_adc_read(adc_client, 4);
/* SDI: +/-700, ATL: +2000 */
if (ret > 1700) {
sec_battery_pdata.vendor = "ATL ATL";
adonis_battery_data[0].Capacity = 0x4958;
adonis_battery_data[0].type_str = "ATL";
}
pr_err("%s: batt_type(%s), batt_id(%d), cap(0x%x), type(%s)\n",
__func__, sec_battery_pdata.vendor, ret,
adonis_battery_data[0].Capacity, adonis_battery_data[0].type_str);
}
static int lightsensor_get_adcvalue(struct gp2a_data *gp2a)
{
int i = 0;
int value = 0;
int fake_value;
unsigned int adc_avr_value;
/* get ADC */
/* value = gp2a->pdata->light_adc_value(); */
mutex_lock(&gp2a->adc_mutex);
value = s3c_adc_read(gp2a->padc, ALS_IOUT_ADC);
mutex_unlock(&gp2a->adc_mutex);
if (value < 0) {
pr_err("%s : ADC Fail, ret = %d", __func__, value);
value = 0;
}
gp2a->adc_total += value;
adc_avr_value = gp2a->adc_total/ADC_SAMPLE_NUM;
gp2a->adc_total -= adc_avr_value;
/* Cut off ADC Value
*/
#if 1
if (adc_avr_value < LIGHT_FAKE_LIMIT) {
fake_value =
(adc_avr_value < LIGHT_FAKE_THRESHOLD) ?
0 : 2 * (adc_avr_value) - LIGHT_FAKE_LIMIT;
adc_avr_value = fake_value;
}
#else
if (adc_avr_value < 10) {
gp2a->adc_total = 0;
adc_avr_value = 0;
}
#endif
return adc_avr_value;
}
static int cp_thm_get_adc_data(struct ssp_data *data)
{
int adc_data;
int adc_max = 0;
int adc_min = 0;
int adc_total = 0;
int i;
int err_value;
for (i = 0; i < CP_THM_ADC_SAMPLING_CNT; i++) {
mutex_lock(&data->cp_temp_adc_lock);
if (data->adc_client)
adc_data = s3c_adc_read(data->adc_client, data->cp_thm_adc_channel);
else
adc_data = 0;
mutex_unlock(&data->cp_temp_adc_lock);
if (adc_data < 0) {
pr_err("[SSP] : %s err(%d) returned, skip read\n",
__func__, adc_data);
err_value = adc_data;
goto err;
}
if (i != 0) {
if (adc_data > adc_max)
adc_max = adc_data;
else if (adc_data < adc_min)
adc_min = adc_data;
} else {
adc_max = adc_data;
adc_min = adc_data;
}
adc_total += adc_data;
}
return (adc_total - adc_max - adc_min) / (CP_THM_ADC_SAMPLING_CNT - 2);
err:
return err_value;
}
static int sec_therm_get_adc_data(struct sec_therm_info *info)
{
int adc_ch;
int adc_data;
int adc_max = 0;
int adc_min = 0;
int adc_total = 0;
int i;
int err_value;
adc_ch = info->pdata->adc_channel;
for (i = 0; i < ADC_SAMPLING_CNT; i++) {
adc_data = s3c_adc_read(info->padc, adc_ch);
if (adc_data < 0) {
dev_err(info->dev, "%s : err(%d) returned, skip read\n",
__func__, adc_data);
err_value = adc_data;
goto err;
}
if (i != 0) {
if (adc_data > adc_max)
adc_max = adc_data;
else if (adc_data < adc_min)
adc_min = adc_data;
} else {
adc_max = adc_data;
adc_min = adc_data;
}
adc_total += adc_data;
}
return (adc_total - adc_max - adc_min) / (ADC_SAMPLING_CNT - 2);
err:
return err_value;
}
static void sec_bat_check_batt_id(void)
{
int ret = 0;
ret = s3c_adc_read(adc_client, 4);
#if !defined(CONFIG_CHAGALL) && !defined(CONFIG_KLIMT)
/* SDI: +/-700, BYD: +/-1300, ATL: +2000 */
if (ret > 1700) {
sec_battery_pdata.vendor = "ATL ATL";
adonis_battery_data[0].Capacity = 0x4074;
adonis_battery_data[0].type_str = "ATL";
} else if (ret > 1000) {
sec_battery_pdata.vendor = "BYD BYD";
adonis_battery_data[0].Capacity = 0x4010;
adonis_battery_data[0].type_str = "BYD";
}
#endif
pr_err("%s: batt_type(%s), batt_id(%d), cap(0x%x), type(%s)\n",
__func__, sec_battery_pdata.vendor, ret,
adonis_battery_data[0].Capacity, adonis_battery_data[0].type_str);
}
/* Temperature from fuelgauge or adc */
static int battery_get_temper(struct battery_info *info)
{
union power_supply_propval value;
int cnt, adc, adc_max, adc_min, adc_total;
int temper = 0;
int retry_cnt = 0;
pr_debug("%s\n", __func__);
switch (info->pdata->temper_src) {
case TEMPER_FUELGAUGE:
info->psy_fuelgauge->get_property(info->psy_fuelgauge,
POWER_SUPPLY_PROP_TEMP, &value);
temper = value.intval;
break;
case TEMPER_AP_ADC:
#if defined(CONFIG_MACH_S2PLUS)
if (system_rev < 2) {
pr_info("%s: adc fixed as 30.0\n", __func__);
temper = 300;
return temper;
}
#endif
#if defined(CONFIG_S3C_ADC)
adc = adc_max = adc_min = adc_total = 0;
for (cnt = 0; cnt < CNT_ADC_SAMPLE; cnt++) {
do {
adc = s3c_adc_read(info->adc_client,
info->pdata->temper_ch);
if (adc < 0) {
pr_info("%s: adc read(%d), retry(%d)",
__func__, adc, retry_cnt);
retry_cnt++;
msleep(100);
}
} while ((adc < 0) && (retry_cnt <= 5));
adc_max = MAX(adc, adc_max);
adc_min = MIN(adc, adc_min);
adc_total += adc;
pr_debug("%s: adc(%d), total(%d), max(%d), min(%d), "
"avg(%d), cnt(%d)\n", __func__,
adc, adc_total, adc_max, adc_min,
adc_total / (cnt + 1), cnt + 1);
}
info->battery_temper_adc =
(adc_total - adc_max - adc_min) / (CNT_ADC_SAMPLE - 2);
if (info->battery_temper_adc < 0) {
pr_info("%s: adc read error(%d), temper set as 30.0",
__func__, info->battery_temper_adc);
temper = 300;
} else {
temper = info->pdata->covert_adc(
info->battery_temper_adc,
info->pdata->temper_ch);
}
#endif
break;
case TEMPER_EXT_ADC:
#if defined(CONFIG_STMPE811_ADC)
temper = stmpe811_get_adc_value(info->pdata->temper_ch);
#endif
break;
case TEMPER_UNKNOWN:
default:
pr_info("%s: invalid temper src(%d)\n", __func__,
info->pdata->temper_src);
temper = 300;
break;
}
pr_debug("%s: temper(%d), source(%d)\n", __func__,
temper, info->pdata->temper_src);
return temper;
}
static int samsung_get_bat_adc(void)
{
return s3c_adc_read(mixtile_adc_bat_info.client, BAT_ADC_CHANNEL);
}
static int mx_mic_read_adc(struct gpio_switch_data *switch_data)
{
int ret = s3c_adc_read(switch_data->client, switch_data->adc_channel);
return ret;
}
static int read_ta_adc(enum charge_connector conn, int ta_check_sel)
{
int adc_max = -1;
int adc_min = 1 << 11;
int adc_total = 0;
int i, j;
int ret;
mutex_lock(&manta_bat_adc_lock);
/* switch to check adc */
if (conn == CHARGE_CONNECTOR_USB)
gpio_set_value(GPIO_USB_SEL1, 0);
else {
ret = manta_pogo_charge_detect_start(ta_check_sel);
if (ret < 0) {
pr_err("%s: Failed to start pogo charger detection\n",
__func__);
goto fail_gpio;
}
}
msleep(100);
for (i = 0; i < ADC_NUM_SAMPLES; i++) {
ret = s3c_adc_read(ta_adc_client, 0);
if (ret == -ETIMEDOUT) {
for (j = 0; j < ADC_LIMIT_ERR_COUNT; j++) {
msleep(20);
ret = s3c_adc_read(ta_adc_client, 0);
if (ret > 0)
break;
}
if (j >= ADC_LIMIT_ERR_COUNT) {
pr_err("%s: Retry count exceeded\n", __func__);
goto out;
}
} else if (ret < 0) {
pr_err("%s: Failed read adc value : %d\n",
__func__, ret);
goto out;
}
if (ret > adc_max)
adc_max = ret;
if (ret < adc_min)
adc_min = ret;
adc_total += ret;
}
ret = (adc_total - adc_max - adc_min) / (ADC_NUM_SAMPLES - 2);
out:
msleep(50);
/* switch back to normal */
if (conn == CHARGE_CONNECTOR_USB)
gpio_set_value(GPIO_USB_SEL1, 1);
else
manta_pogo_charge_detect_end();
fail_gpio:
mutex_unlock(&manta_bat_adc_lock);
return ret;
}