| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright 2020 Google, LLC |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef MAX77759_H_ |
| #define MAX77759_H_ |
| |
| #include <linux/i2c.h> |
| #include <linux/interrupt.h> |
| |
| #define SCNPRINTF(...) scnprintf(__VA_ARGS__) |
| #include "max77759_regs.h" |
| |
| #define MAX77759_CHG_INT_COUNT 2 |
| |
| #define MAX77759_PMIC_REV_A0 0x01 |
| #define MAX77759_PMIC_REV_A1 0x02 |
| |
| #define MAX77759_PMIC_PMIC_ID_MW 0x3b |
| |
| int max777x9_pmic_get_id(struct i2c_client *client, u8 *id, u8 *rev); |
| int max777x9_pmic_reg_read(struct i2c_client *client, |
| u8 addr, u8 *val, int len); |
| int max777x9_pmic_reg_write(struct i2c_client *client, |
| u8 addr, const u8 *val, int len); |
| int max777x9_pmic_reg_update(struct i2c_client *client, |
| u8 reg, u8 mask, u8 value); |
| /* write to a register */ |
| int max77759_chg_reg_write(struct i2c_client *client, u8 reg, u8 value); |
| /* read a register */ |
| int max77759_chg_reg_read(struct i2c_client *client, u8 reg, u8 *value); |
| /* update a register */ |
| int max77759_chg_reg_update(struct i2c_client *client, u8 reg, u8 mask, u8 value); |
| /* change the mode register */ |
| int max77759_chg_mode_write(struct i2c_client *client, enum max77759_charger_modes mode); |
| /* change the insel register */ |
| int max77759_chg_insel_write(struct i2c_client *client, u8 mask, u8 value); |
| /* read the insel register */ |
| int max77759_chg_insel_read(struct i2c_client *client, u8 *value); |
| |
| #if IS_ENABLED(CONFIG_PMIC_MAX77729) |
| extern int max77759_read_batt_conn(struct i2c_client *client, int *temp); |
| extern int max77759_read_usb_temp(struct i2c_client *client, int *temp); |
| extern int max77759_read_batt_id(struct i2c_client *client, unsigned int *id); |
| #else |
| static inline int max77759_read_batt_conn(struct i2c_client *client, int *temp) |
| { |
| return -ENODEV; |
| } |
| static inline int max77759_read_usb_temp(struct i2c_client *client, int *temp) |
| { |
| return -ENODEV; |
| } |
| static inline int max77759_read_batt_id(struct i2c_client *client, |
| unsigned int *id) |
| { |
| return -ENODEV; |
| } |
| #endif |
| |
| /* ---------------------------------------------------------------------------- |
| * GS101 usecases |
| * Platform specific, will need to be moved outside the driver. |
| * |
| * Case USB_chg USB_otg WLC_chg WLC_TX PMIC_Charger Ext_B LSx Name |
| * ---------------------------------------------------------------------------- |
| * 1-1 1 0 x 0 IF-PMIC-VBUS 0 0/0 USB_CHG |
| * 1-2 2 0 x 0 DC VBUS 0 0/0 USB_DC |
| * 2-1 1 0 0 1 IF-PMIC-VBUS 2 0/1 USB_CHG_WLC_TX |
| * 2-2 2 0 0 1 DC CHG 2 0/1 USB_DC_WLC_TX |
| * 3-1 0 0 1 0 IF-PMIC-WCIN 0 0/0 WLC_RX |
| * 3-2 0 0 2 0 DC WCIN 0 0/0 WLC_DC |
| * 4-1 0 1 1 0 IF-PMIC-WCIN 1 1/0 USB_OTG_WLC_RX |
| * 4-2 0 1 2 0 DC WCIN 1 1/0 USB_OTG_WLC_DC |
| * 5-1 0 1 0 0 0 1 1/0 USB_OTG |
| * 5-2 0 1 0 0 OTG 5V 0 0/0 USB_OTG_FRS |
| * 6-2 0 0 0 1 0 2 0/1 WLC_TX |
| * 7-2 0 1 0 1 MW OTG 5V 2 0/1 USB_OTG_WLC_TX |
| * 8 0 0 0 0 0 0 0/0 IDLE |
| * ---------------------------------------------------------------------------- |
| * |
| * Ext_Boost = 0 off, 1 = OTG 5V, 2 = WTX 7.5 |
| * USB_chg = 0 off, 1 = on, 2 = PPS |
| * WLC_chg = 0 off, 1 = on, 2 = PPS |
| */ |
| struct max77759_foreach_cb_data { |
| struct gvotable_election *el; |
| |
| const char *reason; |
| |
| int chgr_on; /* CC_MAX != 0 */ |
| bool stby_on; /* on disconnect, mode=0 */ |
| bool charge_done; |
| |
| int chgin_off; /* input_suspend, mode=0 */ |
| int wlcin_off; /* input_suspend, mode=0 */ |
| int usb_wlc; /* input_suspend, mode=0 */ |
| |
| /* wlc_on is the same as wlc_rx */ |
| bool buck_on; /* wired power in (chgin_on) from TCPCI */ |
| |
| bool otg_on; /* power out, usually external */ |
| bool frs_on; /* power out, fast role swap (internal) */ |
| |
| bool wlc_rx; /* charging wireless */ |
| bool wlc_tx; /* battery share */ |
| |
| bool dc_on; /* DC requested - wired or wireless */ |
| |
| bool boost_on; /* Compat: old for WLC program */ |
| bool uno_on; /* Compat: old for WLC program */ |
| |
| u8 raw_value; /* hard override */ |
| bool use_raw; |
| |
| bool pogo_vin; /* pogo ovp_en */ |
| bool pogo_vout; /* pogo 5v vout */ |
| |
| u8 reg; |
| |
| struct gvotable_election *dc_avail_votable; /* DC_AVAIL */ |
| }; |
| |
| /* internal system values */ |
| enum { |
| /* Charging disabled (go to mode 0) */ |
| GBMS_CHGR_MODE_STBY_ON = 0x10 + MAX77759_CHGR_MODE_ALL_OFF, |
| /* USB inflow off */ |
| GBMS_CHGR_MODE_CHGIN_OFF = 0x11 + MAX77759_CHGR_MODE_ALL_OFF, |
| /* WCIN inflow off */ |
| GBMS_CHGR_MODE_WLCIN_OFF = 0x12 + MAX77759_CHGR_MODE_ALL_OFF, |
| /* USB + WLC_RX mode */ |
| GBMS_CHGR_MODE_USB_WLC_RX = 0x13 + MAX77759_CHGR_MODE_ALL_OFF, |
| |
| /* charging enabled (charging current != 0) */ |
| GBMS_CHGR_MODE_CHGR_BUCK_ON = 0x10 + MAX77759_CHGR_MODE_CHGR_BUCK_ON, |
| /* Compat: old for programmging */ |
| GBMS_CHGR_MODE_BOOST_UNO_ON = 0x10 + MAX77759_CHGR_MODE_BOOST_UNO_ON, |
| }; |
| |
| |
| #endif |
