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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 <linux/rtc.h>
13#include <uapi/linux/pmu.h>
14
15
16extern int find_via_pmu(void);
17
18extern int pmu_request(struct adb_request *req,
19 void (*done)(struct adb_request *), int nbytes, ...);
20extern int pmu_queue_request(struct adb_request *req);
21extern void pmu_poll(void);
22extern void pmu_poll_adb(void); /* For use by xmon */
23extern void pmu_wait_complete(struct adb_request *req);
24
25/* For use before switching interrupts off for a long time;
26 * warning: not stackable
27 */
28#if defined(CONFIG_ADB_PMU)
29extern void pmu_suspend(void);
30extern void pmu_resume(void);
31#else
32static inline void pmu_suspend(void)
33{}
34static inline void pmu_resume(void)
35{}
36#endif
37
38extern void pmu_enable_irled(int on);
39
40extern time64_t pmu_get_time(void);
41extern int pmu_set_rtc_time(struct rtc_time *tm);
42
43extern void pmu_restart(void);
44extern void pmu_shutdown(void);
45extern void pmu_unlock(void);
46
47extern int pmu_present(void);
48extern int pmu_get_model(void);
49
50extern void pmu_backlight_set_sleep(int sleep);
51
52#define PMU_MAX_BATTERIES 2
53
54/* values for pmu_power_flags */
55#define PMU_PWR_AC_PRESENT 0x00000001
56
57/* values for pmu_battery_info.flags */
58#define PMU_BATT_PRESENT 0x00000001
59#define PMU_BATT_CHARGING 0x00000002
60#define PMU_BATT_TYPE_MASK 0x000000f0
61#define PMU_BATT_TYPE_SMART 0x00000010 /* Smart battery */
62#define PMU_BATT_TYPE_HOOPER 0x00000020 /* 3400/3500 */
63#define PMU_BATT_TYPE_COMET 0x00000030 /* 2400 */
64
65struct pmu_battery_info
66{
67 unsigned int flags;
68 unsigned int charge; /* current charge */
69 unsigned int max_charge; /* maximum charge */
70 signed int amperage; /* current, positive if charging */
71 unsigned int voltage; /* voltage */
72 unsigned int time_remaining; /* remaining time */
73};
74
75extern int pmu_battery_count;
76extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
77extern unsigned int pmu_power_flags;
78
79/* Backlight */
80extern void pmu_backlight_init(void);
81
82/* some code needs to know if the PMU was suspended for hibernation */
83#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32)
84extern int pmu_sys_suspended;
85#else
86/* if power management is not configured it can't be suspended */
87#define pmu_sys_suspended 0
88#endif
89
90#endif /* _LINUX_PMU_H */
91

Warning: That file was not part of the compilation database. It may have many parsing errors.