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