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 <common.h> 12 #include <linux/list.h> 13 #include <i2c.h> 14 #include <power/power_chrg.h> 15 16 enum { PMIC_I2C, PMIC_SPI, PMIC_NONE}; 17 enum { I2C_PMIC, I2C_NUM, }; 18 enum { PMIC_READ, PMIC_WRITE, }; 19 enum { PMIC_SENSOR_BYTE_ORDER_LITTLE, PMIC_SENSOR_BYTE_ORDER_BIG, }; 20 21 struct p_i2c { 22 unsigned char addr; 23 unsigned char *buf; 24 unsigned char tx_num; 25 }; 26 27 struct p_spi { 28 unsigned int cs; 29 unsigned int mode; 30 unsigned int bitlen; 31 unsigned int clk; 32 unsigned int flags; 33 u32 (*prepare_tx)(u32 reg, u32 *val, u32 write); 34 }; 35 36 struct pmic; 37 struct power_fg { 38 int (*fg_battery_check) (struct pmic *p, struct pmic *bat); 39 int (*fg_battery_update) (struct pmic *p, struct pmic *bat); 40 }; 41 42 struct power_chrg { 43 int (*chrg_type) (struct pmic *p); 44 int (*chrg_bat_present) (struct pmic *p); 45 int (*chrg_state) (struct pmic *p, int state, int current); 46 }; 47 48 struct power_battery { 49 struct battery *bat; 50 int (*battery_init) (struct pmic *bat, struct pmic *p1, 51 struct pmic *p2, struct pmic *p3); 52 int (*battery_charge) (struct pmic *bat); 53 /* Keep info about power devices involved with battery operation */ 54 struct pmic *chrg, *fg, *muic; 55 }; 56 57 struct pmic { 58 const char *name; 59 unsigned char bus; 60 unsigned char interface; 61 unsigned char sensor_byte_order; 62 unsigned int number_of_regs; 63 union hw { 64 struct p_i2c i2c; 65 struct p_spi spi; 66 } hw; 67 68 void (*low_power_mode) (void); 69 struct power_battery *pbat; 70 struct power_chrg *chrg; 71 struct power_fg *fg; 72 73 struct pmic *parent; 74 struct list_head list; 75 }; 76 77 int pmic_init(unsigned char bus); 78 int pmic_dialog_init(unsigned char bus); 79 int check_reg(struct pmic *p, u32 reg); 80 struct pmic *pmic_alloc(void); 81 struct pmic *pmic_get(const char *s); 82 int pmic_probe(struct pmic *p); 83 int pmic_reg_read(struct pmic *p, u32 reg, u32 *val); 84 int pmic_reg_write(struct pmic *p, u32 reg, u32 val); 85 int pmic_set_output(struct pmic *p, u32 reg, int ldo, int on); 86 87 #define pmic_i2c_addr (p->hw.i2c.addr) 88 #define pmic_i2c_tx_num (p->hw.i2c.tx_num) 89 90 #define pmic_spi_bitlen (p->hw.spi.bitlen) 91 #define pmic_spi_flags (p->hw.spi.flags) 92 93 #endif /* __CORE_PMIC_H_ */ 94