1 /* 2 * Copyright (C) 2011-2012 Samsung Electronics 3 * Lukasz Majewski <l.majewski@samsung.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __CORE_PMIC_H_ 9 #define __CORE_PMIC_H_ 10 11 #include <linux/list.h> 12 #include <i2c.h> 13 #include <power/power_chrg.h> 14 15 enum { PMIC_I2C, PMIC_SPI, PMIC_NONE}; 16 enum { I2C_PMIC, I2C_NUM, }; 17 enum { PMIC_READ, PMIC_WRITE, }; 18 enum { PMIC_SENSOR_BYTE_ORDER_LITTLE, PMIC_SENSOR_BYTE_ORDER_BIG, }; 19 20 struct p_i2c { 21 unsigned char addr; 22 unsigned char *buf; 23 unsigned char tx_num; 24 }; 25 26 struct p_spi { 27 unsigned int cs; 28 unsigned int mode; 29 unsigned int bitlen; 30 unsigned int clk; 31 unsigned int flags; 32 u32 (*prepare_tx)(u32 reg, u32 *val, u32 write); 33 }; 34 35 struct pmic; 36 struct power_fg { 37 int (*fg_battery_check) (struct pmic *p, struct pmic *bat); 38 int (*fg_battery_update) (struct pmic *p, struct pmic *bat); 39 }; 40 41 struct power_chrg { 42 int (*chrg_type) (struct pmic *p); 43 int (*chrg_bat_present) (struct pmic *p); 44 int (*chrg_state) (struct pmic *p, int state, int current); 45 }; 46 47 struct power_battery { 48 struct battery *bat; 49 int (*battery_init) (struct pmic *bat, struct pmic *p1, 50 struct pmic *p2, struct pmic *p3); 51 int (*battery_charge) (struct pmic *bat); 52 /* Keep info about power devices involved with battery operation */ 53 struct pmic *chrg, *fg, *muic; 54 }; 55 56 struct pmic { 57 const char *name; 58 unsigned char bus; 59 unsigned char interface; 60 unsigned char sensor_byte_order; 61 unsigned int number_of_regs; 62 union hw { 63 struct p_i2c i2c; 64 struct p_spi spi; 65 } hw; 66 67 void (*low_power_mode) (void); 68 struct power_battery *pbat; 69 struct power_chrg *chrg; 70 struct power_fg *fg; 71 72 struct pmic *parent; 73 struct list_head list; 74 }; 75 76 int pmic_init(unsigned char bus); 77 int pmic_dialog_init(unsigned char bus); 78 int check_reg(struct pmic *p, u32 reg); 79 struct pmic *pmic_alloc(void); 80 struct pmic *pmic_get(const char *s); 81 int pmic_probe(struct pmic *p); 82 int pmic_reg_read(struct pmic *p, u32 reg, u32 *val); 83 int pmic_reg_write(struct pmic *p, u32 reg, u32 val); 84 int pmic_set_output(struct pmic *p, u32 reg, int ldo, int on); 85 86 #define pmic_i2c_addr (p->hw.i2c.addr) 87 #define pmic_i2c_tx_num (p->hw.i2c.tx_num) 88 89 #define pmic_spi_bitlen (p->hw.spi.bitlen) 90 #define pmic_spi_flags (p->hw.spi.flags) 91 92 #endif /* __CORE_PMIC_H_ */ 93