projects/linux·blob v3.13 · refs

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