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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
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 | */ | |
6c9f2ef9 DH |
9 | #ifndef _LINUX_PMU_H |
10 | #define _LINUX_PMU_H | |
1da177e4 | 11 | |
607ca46e | 12 | #include <uapi/linux/pmu.h> |
1da177e4 | 13 | |
1da177e4 LT |
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, ...); | |
730745a5 | 19 | extern int pmu_queue_request(struct adb_request *req); |
1da177e4 LT |
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 | */ | |
a99d9a6e | 27 | #if defined(CONFIG_ADB_PMU) |
1da177e4 LT |
28 | extern void pmu_suspend(void); |
29 | extern void pmu_resume(void); | |
a99d9a6e TB |
30 | #else |
31 | static inline void pmu_suspend(void) | |
32 | {} | |
33 | static inline void pmu_resume(void) | |
34 | {} | |
35 | #endif | |
1da177e4 LT |
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 | ||
0094f2cd BH |
46 | extern void pmu_backlight_set_sleep(int sleep); |
47 | ||
1da177e4 LT |
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 | ||
5474c120 | 75 | /* Backlight */ |
4b755999 | 76 | extern void pmu_backlight_init(void); |
5474c120 | 77 | |
f596575e | 78 | /* some code needs to know if the PMU was suspended for hibernation */ |
07c941d0 | 79 | #if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) |
f596575e JB |
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 | ||
6c9f2ef9 | 86 | #endif /* _LINUX_PMU_H */ |