diff options
Diffstat (limited to 'drivers/battery/sec_adc.c')
| -rwxr-xr-x | drivers/battery/sec_adc.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/drivers/battery/sec_adc.c b/drivers/battery/sec_adc.c new file mode 100755 index 00000000..c9f845f3 --- /dev/null +++ b/drivers/battery/sec_adc.c @@ -0,0 +1,180 @@ +/* + * sec_adc.c + * Samsung Mobile Battery Driver + * + * Copyright (C) 2012 Samsung Electronics + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/battery/sec_adc.h> +#include <soc/sprd/adc.h> + +#define ADC_CHANNEL_TEMP 1 + +static struct iio_channel *temp_adc; + +static void sec_bat_adc_ap_init(struct platform_device *pdev) +{ + /* + temp_adc = iio_channel_get_all(&pdev->dev); + */ + return true; +} + +static int sec_bat_adc_ap_read(int channel) +{ + int data; + int ret = 0; + + data = sci_adc_get_value(ADC_CHANNEL_TEMP, false); + pr_info("read channel [%d]\n", data); + /* + int data = -1; + int ret = 0; + + switch (channel) + { + case SEC_BAT_ADC_CHANNEL_CABLE_CHECK: + case SEC_BAT_ADC_CHANNEL_BAT_CHECK: + break; + case SEC_BAT_ADC_CHANNEL_TEMP: + case SEC_BAT_ADC_CHANNEL_TEMP_AMBIENT: + data = sci_adc_get_value(ADC_CHANNEL_1,0); + if (ret < 0) + pr_info("read channel error[%d]\n", ret); + else + pr_debug("TEMP ADC(%d)\n", data); + break; + case SEC_BAT_ADC_CHANNEL_FULL_CHECK: + case SEC_BAT_ADC_CHANNEL_VOLTAGE_NOW: + case SEC_BAT_ADC_CHANNEL_NUM: + break; + default: + break; + } + */ + return data; +} + +static void sec_bat_adc_ap_exit(void) +{ + /* + iio_channel_release(temp_adc); + */ + return true; +} + +static void sec_bat_adc_none_init(struct platform_device *pdev) +{ +} + +static int sec_bat_adc_none_read(int channel) +{ + return 0; +} + +static void sec_bat_adc_none_exit(void) +{ +} + +static void sec_bat_adc_ic_init(struct platform_device *pdev) +{ +} + +static int sec_bat_adc_ic_read(int channel) +{ + return 0; +} + +static void sec_bat_adc_ic_exit(void) +{ +} +static int adc_read_type(struct sec_battery_info *battery, int channel) +{ + int adc = 0; + + switch (battery->pdata->temp_adc_type) + { + case SEC_BATTERY_ADC_TYPE_NONE : + adc = sec_bat_adc_none_read(channel); + break; + case SEC_BATTERY_ADC_TYPE_AP : + adc = sec_bat_adc_ap_read(channel); + break; + case SEC_BATTERY_ADC_TYPE_IC : + adc = sec_bat_adc_ic_read(channel); + break; + case SEC_BATTERY_ADC_TYPE_NUM : + break; + default : + break; + } + return adc; +} + +static void adc_init_type(struct platform_device *pdev, + struct sec_battery_info *battery) +{ + switch (battery->pdata->temp_adc_type) + { + case SEC_BATTERY_ADC_TYPE_NONE : + sec_bat_adc_none_init(pdev); + break; + case SEC_BATTERY_ADC_TYPE_AP : + sec_bat_adc_ap_init(pdev); + break; + case SEC_BATTERY_ADC_TYPE_IC : + sec_bat_adc_ic_init(pdev); + break; + case SEC_BATTERY_ADC_TYPE_NUM : + break; + default : + break; + } +} + +static void adc_exit_type(struct sec_battery_info *battery) +{ + switch (battery->pdata->temp_adc_type) + { + case SEC_BATTERY_ADC_TYPE_NONE : + sec_bat_adc_none_exit(); + break; + case SEC_BATTERY_ADC_TYPE_AP : + sec_bat_adc_ap_exit(); + break; + case SEC_BATTERY_ADC_TYPE_IC : + sec_bat_adc_ic_exit(); + break; + case SEC_BATTERY_ADC_TYPE_NUM : + break; + default : + break; + } +} + +int adc_read(struct sec_battery_info *battery, int channel) +{ + int adc = 0; + + adc = adc_read_type(battery, channel); + + dev_dbg(battery->dev, "[%s]adc = %d\n", __func__, adc); + + return adc; +} + +void adc_init(struct platform_device *pdev, struct sec_battery_info *battery) +{ + adc_init_type(pdev, battery); +} + +void adc_exit(struct sec_battery_info *battery) +{ + adc_exit_type(battery); +} + |