| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Definitions for talking to the PMU. The PMU is a microcontroller |
| 4 | * which controls battery charging and system power on PowerBook 3400 |
| 5 | * and 2400 models as well as the RTC and various other things. |
| 6 | * |
| 7 | * Copyright (C) 1998 Paul Mackerras. |
| 8 | */ |
| 9 | #ifndef _LINUX_PMU_H |
| 10 | #define _LINUX_PMU_H |
| 11 | |
| 12 | #include <uapi/linux/pmu.h> |
| 13 | |
| 14 | |
| 15 | extern int find_via_pmu(void); |
| 16 | |
| 17 | extern int pmu_request(struct adb_request *req, |
| 18 | void (*done)(struct adb_request *), int nbytes, ...); |
| 19 | extern int pmu_queue_request(struct adb_request *req); |
| 20 | extern void pmu_poll(void); |
| 21 | extern void pmu_poll_adb(void); /* For use by xmon */ |
| 22 | extern void pmu_wait_complete(struct adb_request *req); |
| 23 | |
| 24 | /* For use before switching interrupts off for a long time; |
| 25 | * warning: not stackable |
| 26 | */ |
| 27 | #if defined(CONFIG_ADB_PMU) |
| 28 | extern void pmu_suspend(void); |
| 29 | extern void pmu_resume(void); |
| 30 | #else |
| 31 | static inline void pmu_suspend(void) |
| 32 | {} |
| 33 | static inline void pmu_resume(void) |
| 34 | {} |
| 35 | #endif |
| 36 | |
| 37 | extern void pmu_enable_irled(int on); |
| 38 | |
| 39 | extern void pmu_restart(void); |
| 40 | extern void pmu_shutdown(void); |
| 41 | extern void pmu_unlock(void); |
| 42 | |
| 43 | extern int pmu_present(void); |
| 44 | extern int pmu_get_model(void); |
| 45 | |
| 46 | extern void pmu_backlight_set_sleep(int sleep); |
| 47 | |
| 48 | #define PMU_MAX_BATTERIES 2 |
| 49 | |
| 50 | /* values for pmu_power_flags */ |
| 51 | #define PMU_PWR_AC_PRESENT 0x00000001 |
| 52 | |
| 53 | /* values for pmu_battery_info.flags */ |
| 54 | #define PMU_BATT_PRESENT 0x00000001 |
| 55 | #define PMU_BATT_CHARGING 0x00000002 |
| 56 | #define PMU_BATT_TYPE_MASK 0x000000f0 |
| 57 | #define PMU_BATT_TYPE_SMART 0x00000010 /* Smart battery */ |
| 58 | #define PMU_BATT_TYPE_HOOPER 0x00000020 /* 3400/3500 */ |
| 59 | #define PMU_BATT_TYPE_COMET 0x00000030 /* 2400 */ |
| 60 | |
| 61 | struct pmu_battery_info |
| 62 | { |
| 63 | unsigned int flags; |
| 64 | unsigned int charge; /* current charge */ |
| 65 | unsigned int max_charge; /* maximum charge */ |
| 66 | signed int amperage; /* current, positive if charging */ |
| 67 | unsigned int voltage; /* voltage */ |
| 68 | unsigned int time_remaining; /* remaining time */ |
| 69 | }; |
| 70 | |
| 71 | extern int pmu_battery_count; |
| 72 | extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES]; |
| 73 | extern unsigned int pmu_power_flags; |
| 74 | |
| 75 | /* Backlight */ |
| 76 | extern void pmu_backlight_init(void); |
| 77 | |
| 78 | /* some code needs to know if the PMU was suspended for hibernation */ |
| 79 | #if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) |
| 80 | extern int pmu_sys_suspended; |
| 81 | #else |
| 82 | /* if power management is not configured it can't be suspended */ |
| 83 | #define pmu_sys_suspended 0 |
| 84 | #endif |
| 85 | |
| 86 | #endif /* _LINUX_PMU_H */ |