lt8491.h

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/***************************************************************************/
#ifndef __LT8491_H__
#define __LT8491_H__
 
#include "no_os_i2c.h"
#include "no_os_util.h"
 
#define LT8491_TELE_TBAT_REG 0x0
#define LT8491_TELE_POUT_REG 0x2
#define LT8491_TELE_PIN_REG  0x4
#define LT8491_TELE_EFF_REG  0x6
#define LT8491_TELE_IOUT_REG 0x8
#define LT8491_TELE_IIN_REG  0xA
#define LT8491_TELE_VBAT_REG 0xC
#define LT8491_TELE_VIN_REG  0xE
#define LT8491_TELE_VINR_REG 0x10
 
#define LT8491_STAT_CHARGER_REG 0x12
#define LT8491_STAT_SUPPLY_REG 0x14
 
#define LT8491_CTRL_CHRG_EN_REG 0x23
#define LT8491_CTRL_RESTART_CHIP_REG 0x24
#define LT8491_CTRL_UPDATE_TELEM 0x26
 
#define LT8491_CFG_RSENSE1_REG 0x28
#define LT8491_CFG_RIMON_OUT_REG 0x2A
#define LT8491_CFG_RSENSE2_REG 0x2C
#define LT8491_CFG_RDACO_REG 0x2E
#define LT8491_CFG_RFBOUT1_REG 0x30
#define LT8491_CFG_RFBOUT2_REG 0x32
#define LT8491_CFG_RDACI_REG 0x34
#define LT8491_CFG_RFBIN2_REG 0x36
#define LT8491_CFG_RFBIN1_REG 0x38
#define LT8491_CFG_TBAT_MIN_REG 0x40
#define LT8491_CFG_TBAT_MAX_REG 0x41
#define LT8491_CFG_CHRG_MISC_REG 0x4D
 
#define LT8491_CFG_USER_CODE 0x5A
#define LT8491_MFR_DATA1_REG 0x5C
#define LT8491_MFR_DATA2_REG 0x5E
#define LT8491_MFR_DATA3_REG 0x60
 
#define LT8491_CHRG_STAGE_MASK NO_OS_GENMASK(5, 3)
#define LT8491_CHARGING_MASK NO_OS_BIT(2)
 
#define LT8491_PS_OR_SOLAR_MASK NO_OS_BIT(3)
 
enum lt8491_charging_stage {
    LT8491_STAGE0,
    LT8491_STAGE1,
    LT8491_STAGE2,
    LT8491_STAGE3,
    LT8491_DONE_CHARGING,
};
 
struct lt8491_desc {
    struct no_os_i2c_desc *i2c_desc;
};
 
struct lt8491_init_param {
    struct no_os_i2c_init_param i2c_init_param;
    unsigned int rsense1_micro_ohms;
    unsigned int rimon_out_ohms;
    unsigned int rsense2_micro_ohms;
    unsigned int rdaco_ohms;
    unsigned int rfbout1_ohms;
    unsigned int rfbout2_ohms;
    unsigned int rdaci_ohms;
    unsigned int rfbin2_ohms;
    unsigned int rfbin1_ohms;
};
 
int lt8491_reg_read(struct lt8491_desc *dev, uint8_t addr, uint16_t *val,
            bool is_word);
 
int lt8491_reg_write(struct lt8491_desc *dev, uint8_t addr, uint16_t val,
             bool is_word);
 
int lt8491_init(struct lt8491_desc **dev,
        struct lt8491_init_param *init_param);
 
int lt8491_remove(struct lt8491_desc *dev);
 
int lt8491_configure_telemetry(struct lt8491_desc *dev,
                   struct lt8491_init_param *init_param);
 
int lt8491_read_tbat(struct lt8491_desc *dev, int32_t *val);
 
int lt8491_read_pout(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_pin(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_efficiency(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_iout(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_iin(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_vbat(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_vin(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_read_charging_stage(struct lt8491_desc *dev, uint32_t *uval);
 
int lt8491_read_charging_status(struct lt8491_desc *dev, uint32_t *charging);
 
int lt8491_read_enable(struct lt8491_desc *dev, uint32_t *enable);
 
int lt8491_write_enable(struct lt8491_desc *dev, uint32_t enable);
 
int lt8491_restart_chip(struct lt8491_desc *dev);
 
int lt8491_read_scratch(struct lt8491_desc *dev, uint32_t *val);
 
int lt8491_write_scratch(struct lt8491_desc *dev, uint32_t val);
 
int lt8491_read_serial_id(struct lt8491_desc *dev, uint32_t *val);
 
#endif  /* __LT8491_H__ */