diff options
Diffstat (limited to 'drivers/iio/adc/qcom-vadc-common.h')
| -rw-r--r-- | drivers/iio/adc/qcom-vadc-common.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/drivers/iio/adc/qcom-vadc-common.h b/drivers/iio/adc/qcom-vadc-common.h deleted file mode 100644 index 17b2fc4d8bf2..000000000000 --- a/drivers/iio/adc/qcom-vadc-common.h +++ /dev/null @@ -1,177 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Code shared between the different Qualcomm PMIC voltage ADCs - */ - -#ifndef QCOM_VADC_COMMON_H -#define QCOM_VADC_COMMON_H - -#define VADC_CONV_TIME_MIN_US 2000 -#define VADC_CONV_TIME_MAX_US 2100 - -/* Min ADC code represents 0V */ -#define VADC_MIN_ADC_CODE 0x6000 -/* Max ADC code represents full-scale range of 1.8V */ -#define VADC_MAX_ADC_CODE 0xa800 - -#define VADC_ABSOLUTE_RANGE_UV 625000 -#define VADC_RATIOMETRIC_RANGE 1800 - -#define VADC_DEF_PRESCALING 0 /* 1:1 */ -#define VADC_DEF_DECIMATION 0 /* 512 */ -#define VADC_DEF_HW_SETTLE_TIME 0 /* 0 us */ -#define VADC_DEF_AVG_SAMPLES 0 /* 1 sample */ -#define VADC_DEF_CALIB_TYPE VADC_CALIB_ABSOLUTE - -#define VADC_DECIMATION_MIN 512 -#define VADC_DECIMATION_MAX 4096 -#define ADC5_DEF_VBAT_PRESCALING 1 /* 1:3 */ -#define ADC5_DECIMATION_SHORT 250 -#define ADC5_DECIMATION_MEDIUM 420 -#define ADC5_DECIMATION_LONG 840 -/* Default decimation - 1024 for rev2, 840 for pmic5 */ -#define ADC5_DECIMATION_DEFAULT 2 -#define ADC5_DECIMATION_SAMPLES_MAX 3 - -#define VADC_HW_SETTLE_DELAY_MAX 10000 -#define VADC_HW_SETTLE_SAMPLES_MAX 16 -#define VADC_AVG_SAMPLES_MAX 512 -#define ADC5_AVG_SAMPLES_MAX 16 - -#define PMIC5_CHG_TEMP_SCALE_FACTOR 377500 -#define PMIC5_SMB_TEMP_CONSTANT 419400 -#define PMIC5_SMB_TEMP_SCALE_FACTOR 356 - -#define PMI_CHG_SCALE_1 -138890 -#define PMI_CHG_SCALE_2 391750000000LL - -#define VADC5_MAX_CODE 0x7fff -#define ADC5_FULL_SCALE_CODE 0x70e4 -#define ADC5_USR_DATA_CHECK 0x8000 - -#define R_PU_100K 100000 -#define RATIO_MAX_ADC7 BIT(14) - -#define DIE_TEMP_ADC7_SCALE_1 -60000 -#define DIE_TEMP_ADC7_SCALE_2 20000 -#define DIE_TEMP_ADC7_SCALE_FACTOR 1000 -#define DIE_TEMP_ADC7_MAX 160000 - -/** - * struct vadc_map_pt - Map the graph representation for ADC channel - * @x: Represent the ADC digitized code. - * @y: Represent the physical data which can be temperature, voltage, - * resistance. - */ -struct vadc_map_pt { - s32 x; - s32 y; -}; - -/* - * VADC_CALIB_ABSOLUTE: uses the 625mV and 1.25V as reference channels. - * VADC_CALIB_RATIOMETRIC: uses the reference voltage (1.8V) and GND for - * calibration. - */ -enum vadc_calibration { - VADC_CALIB_ABSOLUTE = 0, - VADC_CALIB_RATIOMETRIC -}; - -/** - * struct vadc_linear_graph - Represent ADC characteristics. - * @dy: numerator slope to calculate the gain. - * @dx: denominator slope to calculate the gain. - * @gnd: A/D word of the ground reference used for the channel. - * - * Each ADC device has different offset and gain parameters which are - * computed to calibrate the device. - */ -struct vadc_linear_graph { - s32 dy; - s32 dx; - s32 gnd; -}; - -/** - * struct vadc_prescale_ratio - Represent scaling ratio for ADC input. - * @num: the inverse numerator of the gain applied to the input channel. - * @den: the inverse denominator of the gain applied to the input channel. - */ -struct vadc_prescale_ratio { - u32 num; - u32 den; -}; - -/** - * enum vadc_scale_fn_type - Scaling function to convert ADC code to - * physical scaled units for the channel. - * SCALE_DEFAULT: Default scaling to convert raw adc code to voltage (uV). - * SCALE_THERM_100K_PULLUP: Returns temperature in millidegC. - * Uses a mapping table with 100K pullup. - * SCALE_PMIC_THERM: Returns result in milli degree's Centigrade. - * SCALE_XOTHERM: Returns XO thermistor voltage in millidegC. - * SCALE_PMI_CHG_TEMP: Conversion for PMI CHG temp - * SCALE_HW_CALIB_DEFAULT: Default scaling to convert raw adc code to - * voltage (uV) with hardware applied offset/slope values to adc code. - * SCALE_HW_CALIB_THERM_100K_PULLUP: Returns temperature in millidegC using - * lookup table. The hardware applies offset/slope to adc code. - * SCALE_HW_CALIB_XOTHERM: Returns XO thermistor voltage in millidegC using - * 100k pullup. The hardware applies offset/slope to adc code. - * SCALE_HW_CALIB_THERM_100K_PU_PM7: Returns temperature in millidegC using - * lookup table for PMIC7. The hardware applies offset/slope to adc code. - * SCALE_HW_CALIB_PMIC_THERM: Returns result in milli degree's Centigrade. - * The hardware applies offset/slope to adc code. - * SCALE_HW_CALIB_PMIC_THERM: Returns result in milli degree's Centigrade. - * The hardware applies offset/slope to adc code. This is for PMIC7. - * SCALE_HW_CALIB_PM5_CHG_TEMP: Returns result in millidegrees for PMIC5 - * charger temperature. - * SCALE_HW_CALIB_PM5_SMB_TEMP: Returns result in millidegrees for PMIC5 - * SMB1390 temperature. - */ -enum vadc_scale_fn_type { - SCALE_DEFAULT = 0, - SCALE_THERM_100K_PULLUP, - SCALE_PMIC_THERM, - SCALE_XOTHERM, - SCALE_PMI_CHG_TEMP, - SCALE_HW_CALIB_DEFAULT, - SCALE_HW_CALIB_THERM_100K_PULLUP, - SCALE_HW_CALIB_XOTHERM, - SCALE_HW_CALIB_THERM_100K_PU_PM7, - SCALE_HW_CALIB_PMIC_THERM, - SCALE_HW_CALIB_PMIC_THERM_PM7, - SCALE_HW_CALIB_PM5_CHG_TEMP, - SCALE_HW_CALIB_PM5_SMB_TEMP, - SCALE_HW_CALIB_INVALID, -}; - -struct adc5_data { - const u32 full_scale_code_volt; - const u32 full_scale_code_cur; - const struct adc5_channels *adc_chans; - const struct iio_info *info; - unsigned int *decimation; - unsigned int *hw_settle_1; - unsigned int *hw_settle_2; -}; - -int qcom_vadc_scale(enum vadc_scale_fn_type scaletype, - const struct vadc_linear_graph *calib_graph, - const struct vadc_prescale_ratio *prescale, - bool absolute, - u16 adc_code, int *result_mdec); - -struct qcom_adc5_scale_type { - int (*scale_fn)(const struct vadc_prescale_ratio *prescale, - const struct adc5_data *data, u16 adc_code, int *result); -}; - -int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype, - const struct vadc_prescale_ratio *prescale, - const struct adc5_data *data, - u16 adc_code, int *result_mdec); - -int qcom_vadc_decimation_from_dt(u32 value); - -#endif /* QCOM_VADC_COMMON_H */ |