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90 lines
2.4 KiB
90 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Definitions for talking to the PMU. The PMU is a microcontroller |
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* which controls battery charging and system power on PowerBook 3400 |
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* and 2400 models as well as the RTC and various other things. |
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* |
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* Copyright (C) 1998 Paul Mackerras. |
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*/ |
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#ifndef _LINUX_PMU_H |
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#define _LINUX_PMU_H |
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#include <linux/rtc.h> |
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#include <uapi/linux/pmu.h> |
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extern int find_via_pmu(void); |
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extern int pmu_request(struct adb_request *req, |
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void (*done)(struct adb_request *), int nbytes, ...); |
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extern int pmu_queue_request(struct adb_request *req); |
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extern void pmu_poll(void); |
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extern void pmu_poll_adb(void); /* For use by xmon */ |
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extern void pmu_wait_complete(struct adb_request *req); |
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/* For use before switching interrupts off for a long time; |
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* warning: not stackable |
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*/ |
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#if defined(CONFIG_ADB_PMU) |
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extern void pmu_suspend(void); |
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extern void pmu_resume(void); |
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#else |
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static inline void pmu_suspend(void) |
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{} |
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static inline void pmu_resume(void) |
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{} |
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#endif |
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extern void pmu_enable_irled(int on); |
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extern time64_t pmu_get_time(void); |
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extern int pmu_set_rtc_time(struct rtc_time *tm); |
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extern void pmu_restart(void); |
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extern void pmu_shutdown(void); |
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extern void pmu_unlock(void); |
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extern int pmu_present(void); |
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extern int pmu_get_model(void); |
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extern void pmu_backlight_set_sleep(int sleep); |
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#define PMU_MAX_BATTERIES 2 |
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/* values for pmu_power_flags */ |
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#define PMU_PWR_AC_PRESENT 0x00000001 |
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/* values for pmu_battery_info.flags */ |
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#define PMU_BATT_PRESENT 0x00000001 |
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#define PMU_BATT_CHARGING 0x00000002 |
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#define PMU_BATT_TYPE_MASK 0x000000f0 |
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#define PMU_BATT_TYPE_SMART 0x00000010 /* Smart battery */ |
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#define PMU_BATT_TYPE_HOOPER 0x00000020 /* 3400/3500 */ |
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#define PMU_BATT_TYPE_COMET 0x00000030 /* 2400 */ |
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struct pmu_battery_info |
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{ |
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unsigned int flags; |
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unsigned int charge; /* current charge */ |
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unsigned int max_charge; /* maximum charge */ |
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signed int amperage; /* current, positive if charging */ |
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unsigned int voltage; /* voltage */ |
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unsigned int time_remaining; /* remaining time */ |
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}; |
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extern int pmu_battery_count; |
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extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES]; |
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extern unsigned int pmu_power_flags; |
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/* Backlight */ |
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extern void pmu_backlight_init(void); |
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/* some code needs to know if the PMU was suspended for hibernation */ |
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#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) |
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extern int pmu_sys_suspended; |
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#else |
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/* if power management is not configured it can't be suspended */ |
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#define pmu_sys_suspended 0 |
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#endif |
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#endif /* _LINUX_PMU_H */
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