291 lines
9.9 KiB
C
Executable File
291 lines
9.9 KiB
C
Executable File
/* 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
|
|
|
|
#include <linux/adc-tm-clients.h>
|
|
#include <linux/math.h>
|
|
#include <linux/types.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, 1360 for adc5_gen3 and 340 for adc5_gen4 */
|
|
#define ADC5_DECIMATION_DEFAULT 2
|
|
#define ADC5_GEN4_DECIMATION_DEFAULT 1
|
|
#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 PMIC5_SMB1398_TEMP_CONSTANT 268235
|
|
#define PMIC5_SMB1398_TEMP_SCALE_FACTOR 340
|
|
|
|
#define PMIC5_PM2250_S3_DIE_TEMP_SCALE_FACTOR 187263
|
|
#define PMIC5_PM2250_S3_DIE_TEMP_CONSTANT 720100
|
|
|
|
#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_10K 10000
|
|
#define R_PU_100K 100000
|
|
#define RATIO_MAX_ADC7 BIT(14)
|
|
|
|
#define PMIC5_GEN3_USB_IN_I_SCALE_FACTOR 9248
|
|
|
|
#define ADC_VDD_REF 1875000
|
|
|
|
/*
|
|
* 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;
|
|
};
|
|
|
|
/**
|
|
* enum adc_tm_rscale_fn_type - Scaling function used to convert the
|
|
* channels input voltage/temperature to corresponding ADC code that is
|
|
* applied for thresholds. Check the corresponding channels scaling to
|
|
* determine the appropriate temperature/voltage units that are passed
|
|
* to the scaling function. Example battery follows the power supply
|
|
* framework that needs its units to be in decidegreesC so it passes
|
|
* deci-degreesC. PA_THERM clients pass the temperature in degrees.
|
|
* The order below should match the one in the driver for
|
|
* adc_tm_rscale_fn[].
|
|
*/
|
|
enum adc_tm_rscale_fn_type {
|
|
SCALE_R_ABSOLUTE = 0,
|
|
SCALE_RSCALE_NONE,
|
|
};
|
|
|
|
/**
|
|
* struct adc_tm_config - Represent ADC Thermal Monitor configuration.
|
|
* @high_thr_temp: Temperature at which high threshold notification is required.
|
|
* @low_thr_temp: Temperature at which low threshold notification is required.
|
|
* @low_thr_voltage : Low threshold voltage ADC code used for reverse
|
|
* calibration.
|
|
* @high_thr_voltage: High threshold voltage ADC code used for reverse
|
|
* calibration.
|
|
*/
|
|
struct adc_tm_config {
|
|
int high_thr_temp;
|
|
int low_thr_temp;
|
|
int64_t high_thr_voltage;
|
|
int64_t low_thr_voltage;
|
|
};
|
|
|
|
struct adc_tm_reverse_scale_fn {
|
|
int32_t (*chan)(struct adc_tm_config *tm_config);
|
|
};
|
|
|
|
struct adc_tm_client_info {
|
|
struct list_head list;
|
|
struct adc_tm_param *param;
|
|
int32_t low_thr_requested;
|
|
int32_t high_thr_requested;
|
|
bool notify_low_thr;
|
|
bool notify_high_thr;
|
|
bool high_thr_set;
|
|
bool low_thr_set;
|
|
enum adc_tm_state_request state_request;
|
|
};
|
|
|
|
/**
|
|
* 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_PM7: 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.
|
|
* SCALE_HW_CALIB_BATT_THERM_100K: Returns battery thermistor temperature in
|
|
* decidegC using 100k pullup. The hardware applies offset/slope to adc
|
|
* code.
|
|
* SCALE_HW_CALIB_BATT_THERM_30K: Returns battery thermistor temperature in
|
|
* decidegC using 30k pullup. The hardware applies offset/slope to adc
|
|
* code.
|
|
* SCALE_HW_CALIB_BATT_THERM_400K: Returns battery thermistor temperature in
|
|
* decidegC using 400k pullup. The hardware applies offset/slope to adc
|
|
* code.
|
|
* SCALE_HW_CALIB_PM5_SMB1398_TEMP: Returns result in millidegrees for PMIC5
|
|
* SMB1398 temperature.
|
|
* SCALE_HW_CALIB_PM7_SMB_TEMP: Returns result in millidegrees for PMIC7
|
|
* SMB139x temperature.
|
|
* SCALE_HW_CALIB_PM7_CHG_TEMP: Returns result in millidegrees for PMIC7
|
|
* charger temperature.
|
|
* SCALE_HW_CALIB_CUR: Returns result in microamperes for PMIC7 channels that
|
|
* use voltage scaling.
|
|
* SCALE_HW_CALIB_CUR_RAW: Returns result in microamperes for PMIC7 channels
|
|
* that use raw ADC code.
|
|
* SCALE_HW_CALIB_PM2250_S3_DIE_TEMP: Returns result in millidegrees for
|
|
* S3 die temperature channel on PM2250.
|
|
* SCALE_HW_CALIB_PM5_CUR: Returns result in microamperes for PMIC5 channels
|
|
* that use voltage scaling.
|
|
* SCALE_HW_CALIB_PM5_GEN3_BATT_THERM_100K: Returns battery thermistor
|
|
* temperature in decidegC using 100k pullup. The hardware applies
|
|
* offset/slope to adc code.
|
|
* SCALE_HW_CALIB_PM5_GEN3_BATT_ID_100K: Returns battery ID resistance
|
|
* in ohms using 100k pullup. The hardware applies offset/slope to
|
|
* adc code.
|
|
* SCALE_HW_CALIB_PM5_GEN3_USB_IN_I: Returns USB input current in microamperes.
|
|
* SCALE_HW_CALIB_PM5_GEN4_BATT_THERM_10K: Returns battery thermistor
|
|
* temperature in decidegC using 10k pullup. The hardware applies
|
|
* offset/slope to adc code.
|
|
* SCALE_HW_CALIB_PM5_GEN4_BATT_ID_10K: Returns battery ID resistance
|
|
* in ohms using 10k pullup. The hardware applies offset/slope to
|
|
* adc code.
|
|
*/
|
|
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_BATT_THERM_100K,
|
|
SCALE_HW_CALIB_BATT_THERM_30K,
|
|
SCALE_HW_CALIB_BATT_THERM_400K,
|
|
SCALE_HW_CALIB_PM5_SMB1398_TEMP,
|
|
SCALE_HW_CALIB_PM7_SMB_TEMP,
|
|
SCALE_HW_CALIB_PM7_CHG_TEMP,
|
|
SCALE_HW_CALIB_CUR,
|
|
SCALE_HW_CALIB_CUR_RAW,
|
|
SCALE_HW_CALIB_PM2250_S3_DIE_TEMP,
|
|
SCALE_HW_CALIB_PM5_CUR,
|
|
SCALE_HW_CALIB_PM5_GEN3_BATT_THERM_100K,
|
|
SCALE_HW_CALIB_PM5_GEN3_BATT_ID_100K,
|
|
SCALE_HW_CALIB_PM5_GEN3_USB_IN_I,
|
|
SCALE_HW_CALIB_PM5_GEN4_BATT_THERM_10K,
|
|
SCALE_HW_CALIB_PM5_GEN4_BATT_ID_10K,
|
|
SCALE_HW_CALIB_INVALID,
|
|
};
|
|
|
|
enum vadc_generation {
|
|
ADC5_GEN3 = 0,
|
|
ADC5_GEN4,
|
|
};
|
|
|
|
struct adc5_data {
|
|
const char *name;
|
|
const u32 full_scale_code_volt;
|
|
const u32 full_scale_code_cur;
|
|
const u32 full_scale_code_raw;
|
|
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 u32_fract *prescale,
|
|
bool absolute,
|
|
u16 adc_code, int *result_mdec);
|
|
|
|
struct qcom_adc5_scale_type {
|
|
int (*scale_fn)(const struct u32_fract *prescale,
|
|
const struct adc5_data *data, u16 adc_code, int *result);
|
|
};
|
|
|
|
int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
|
|
unsigned int prescale_ratio,
|
|
const struct adc5_data *data,
|
|
u16 adc_code, int *result_mdec);
|
|
|
|
u16 qcom_adc_tm5_temp_volt_scale(unsigned int prescale_ratio,
|
|
u32 full_scale_code_volt, int temp);
|
|
|
|
u16 qcom_adc_tm5_gen2_temp_res_scale(int temp);
|
|
|
|
int qcom_adc5_prescaling_from_dt(u32 num, u32 den);
|
|
|
|
int qcom_adc5_hw_settle_time_from_dt(u32 value, const unsigned int *hw_settle);
|
|
|
|
int qcom_adc5_avg_samples_from_dt(u32 value);
|
|
|
|
int qcom_adc5_decimation_from_dt(u32 value, const unsigned int *decimation);
|
|
|
|
int qcom_vadc_decimation_from_dt(u32 value);
|
|
|
|
void adc_tm_scale_therm_voltage_100k_gen3(struct adc_tm_config *param,
|
|
const struct adc5_data *data);
|
|
|
|
int32_t adc_tm_absolute_rthr_gen3(struct adc_tm_config *tm_config);
|
|
|
|
#endif /* QCOM_VADC_COMMON_H */
|