1 /* 2 * Copyright (C) 2011-2012 Samsung Electronics 3 * Lukasz Majewski <l.majewski@samsung.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #ifndef __CORE_PMIC_H_ 25 #define __CORE_PMIC_H_ 26 27 #include <common.h> 28 #include <linux/list.h> 29 #include <i2c.h> 30 #include <power/power_chrg.h> 31 32 enum { PMIC_I2C, PMIC_SPI, PMIC_NONE}; 33 enum { I2C_PMIC, I2C_NUM, }; 34 enum { PMIC_READ, PMIC_WRITE, }; 35 enum { PMIC_SENSOR_BYTE_ORDER_LITTLE, PMIC_SENSOR_BYTE_ORDER_BIG, }; 36 37 struct p_i2c { 38 unsigned char addr; 39 unsigned char *buf; 40 unsigned char tx_num; 41 }; 42 43 struct p_spi { 44 unsigned int cs; 45 unsigned int mode; 46 unsigned int bitlen; 47 unsigned int clk; 48 unsigned int flags; 49 u32 (*prepare_tx)(u32 reg, u32 *val, u32 write); 50 }; 51 52 struct pmic; 53 struct power_fg { 54 int (*fg_battery_check) (struct pmic *p, struct pmic *bat); 55 int (*fg_battery_update) (struct pmic *p, struct pmic *bat); 56 }; 57 58 struct power_chrg { 59 int (*chrg_type) (struct pmic *p); 60 int (*chrg_bat_present) (struct pmic *p); 61 int (*chrg_state) (struct pmic *p, int state, int current); 62 }; 63 64 struct power_battery { 65 struct battery *bat; 66 int (*battery_init) (struct pmic *bat, struct pmic *p1, 67 struct pmic *p2, struct pmic *p3); 68 int (*battery_charge) (struct pmic *bat); 69 /* Keep info about power devices involved with battery operation */ 70 struct pmic *chrg, *fg, *muic; 71 }; 72 73 struct pmic { 74 const char *name; 75 unsigned char bus; 76 unsigned char interface; 77 unsigned char sensor_byte_order; 78 unsigned int number_of_regs; 79 union hw { 80 struct p_i2c i2c; 81 struct p_spi spi; 82 } hw; 83 84 void (*low_power_mode) (void); 85 struct power_battery *pbat; 86 struct power_chrg *chrg; 87 struct power_fg *fg; 88 89 struct pmic *parent; 90 struct list_head list; 91 }; 92 93 int pmic_init(unsigned char bus); 94 int pmic_dialog_init(unsigned char bus); 95 int check_reg(struct pmic *p, u32 reg); 96 struct pmic *pmic_alloc(void); 97 struct pmic *pmic_get(const char *s); 98 int pmic_probe(struct pmic *p); 99 int pmic_reg_read(struct pmic *p, u32 reg, u32 *val); 100 int pmic_reg_write(struct pmic *p, u32 reg, u32 val); 101 int pmic_set_output(struct pmic *p, u32 reg, int ldo, int on); 102 103 #define pmic_i2c_addr (p->hw.i2c.addr) 104 #define pmic_i2c_tx_num (p->hw.i2c.tx_num) 105 106 #define pmic_spi_bitlen (p->hw.spi.bitlen) 107 #define pmic_spi_flags (p->hw.spi.flags) 108 109 #endif /* __CORE_PMIC_H_ */ 110