/* * 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. */#include <linux/config.h>#define PMU_DRIVER_VERSION	2/* * PMU commands */#define PMU_POWER_CTRL0		0x10	/* control power of some devices */#define PMU_POWER_CTRL		0x11	/* control power of some devices */#define PMU_ADB_CMD		0x20	/* send ADB packet */#define PMU_ADB_POLL_OFF	0x21	/* disable ADB auto-poll */#define PMU_WRITE_NVRAM		0x33	/* write non-volatile RAM */#define PMU_READ_NVRAM		0x3b	/* read non-volatile RAM */#define PMU_SET_RTC		0x30	/* set real-time clock */#define PMU_READ_RTC		0x38	/* read real-time clock */#define PMU_SET_VOLBUTTON	0x40	/* set volume up/down position */#define PMU_BACKLIGHT_BRIGHT	0x41	/* set backlight brightness */#define PMU_GET_VOLBUTTON	0x48	/* get volume up/down position */#define PMU_PCEJECT		0x4c	/* eject PC-card from slot */#define PMU_BATTERY_STATE	0x6b	/* report battery state etc. */#define PMU_SMART_BATTERY_STATE	0x6f	/* report battery state (new way) */#define PMU_SET_INTR_MASK	0x70	/* set PMU interrupt mask */#define PMU_INT_ACK		0x78	/* read interrupt bits */#define PMU_SHUTDOWN		0x7e	/* turn power off */#define PMU_CPU_SPEED		0x7d	/* control CPU speed on some models */#define PMU_SLEEP		0x7f	/* put CPU to sleep */#define PMU_POWER_EVENTS	0x8f	/* Send power-event commands to PMU */#define PMU_I2C_CMD		0x9a	/* I2C operations */#define PMU_RESET		0xd0	/* reset CPU */#define PMU_GET_BRIGHTBUTTON	0xd9	/* report brightness up/down pos */#define PMU_GET_COVER		0xdc	/* report cover open/closed */#define PMU_SYSTEM_READY	0xdf	/* tell PMU we are awake */#define PMU_GET_VERSION		0xea	/* read the PMU version *//* Bits to use with the PMU_POWER_CTRL0 command */#define PMU_POW0_ON		0x80	/* OR this to power ON the device */#define PMU_POW0_OFF		0x00	/* leave bit 7 to 0 to power it OFF */#define PMU_POW0_HARD_DRIVE	0x04	/* Hard drive power (on wallstreet/lombard ?) *//* Bits to use with the PMU_POWER_CTRL command */#define PMU_POW_ON		0x80	/* OR this to power ON the device */#define PMU_POW_OFF		0x00	/* leave bit 7 to 0 to power it OFF */#define PMU_POW_BACKLIGHT	0x01	/* backlight power */#define PMU_POW_CHARGER		0x02	/* battery charger power */#define PMU_POW_IRLED		0x04	/* IR led power (on wallstreet) */#define PMU_POW_MEDIABAY	0x08	/* media bay power (wallstreet/lombard ?) *//* Bits in PMU interrupt and interrupt mask bytes */#define PMU_INT_PCEJECT		0x04	/* PC-card eject buttons */#define PMU_INT_SNDBRT		0x08	/* sound/brightness up/down buttons */#define PMU_INT_ADB		0x10	/* ADB autopoll or reply data */#define PMU_INT_BATTERY		0x20	/* Battery state change */#define PMU_INT_ENVIRONMENT	0x40	/* Environment interrupts */#define PMU_INT_TICK		0x80	/* 1-second tick interrupt *//* Other bits in PMU interrupt valid when PMU_INT_ADB is set */#define PMU_INT_ADB_AUTO	0x04	/* ADB autopoll, when PMU_INT_ADB */#define PMU_INT_WAITING_CHARGER	0x01	/* ??? */#define PMU_INT_AUTO_SRQ_POLL	0x02	/* ??? *//* Bits in the environement message (either obtained via PMU_GET_COVER, * or via PMU_INT_ENVIRONMENT on core99 */#define PMU_ENV_LID_CLOSED	0x01	/* The lid is closed *//* I2C related definitions */#define PMU_I2C_MODE_SIMPLE	0#define PMU_I2C_MODE_STDSUB	1#define PMU_I2C_MODE_COMBINED	2#define PMU_I2C_BUS_STATUS	0#define PMU_I2C_BUS_SYSCLK	1#define PMU_I2C_BUS_POWER	2#define PMU_I2C_STATUS_OK	0#define PMU_I2C_STATUS_DATAREAD	1#define PMU_I2C_STATUS_BUSY	0xfe/* Kind of PMU (model) */enum {	PMU_UNKNOWN,	PMU_OHARE_BASED,	/* 2400, 3400, 3500 (old G3 powerbook) */	PMU_HEATHROW_BASED,	/* PowerBook G3 series */	PMU_PADDINGTON_BASED,	/* 1999 PowerBook G3 */	PMU_KEYLARGO_BASED,	/* Core99 motherboard (PMU99) */	PMU_68K_V1,		/* 68K PMU, version 1 */	PMU_68K_V2, 		/* 68K PMU, version 2 */};/* PMU PMU_POWER_EVENTS commands */enum {	PMU_PWR_GET_POWERUP_EVENTS	= 0x00,	PMU_PWR_SET_POWERUP_EVENTS	= 0x01,	PMU_PWR_CLR_POWERUP_EVENTS	= 0x02,	PMU_PWR_GET_WAKEUP_EVENTS	= 0x03,	PMU_PWR_SET_WAKEUP_EVENTS	= 0x04,	PMU_PWR_CLR_WAKEUP_EVENTS	= 0x05,};/* Power events wakeup bits */enum {	PMU_PWR_WAKEUP_KEY		= 0x01,	/* Wake on key press */	PMU_PWR_WAKEUP_AC_INSERT	= 0x02, /* Wake on AC adapter plug */	PMU_PWR_WAKEUP_AC_CHANGE	= 0x04,	PMU_PWR_WAKEUP_LID_OPEN		= 0x08,	PMU_PWR_WAKEUP_RING		= 0x10,};	/* * Ioctl commands for the /dev/pmu device */#include <linux/ioctl.h>/* no param */#define PMU_IOC_SLEEP		_IO('B', 0)/* out param: u32*	backlight value: 0 to 15 */#define PMU_IOC_GET_BACKLIGHT	_IOR('B', 1, size_t)/* in param: u32	backlight value: 0 to 15 */#define PMU_IOC_SET_BACKLIGHT	_IOW('B', 2, size_t)/* out param: u32*	PMU model */#define PMU_IOC_GET_MODEL	_IOR('B', 3, size_t)/* out param: u32*	has_adb: 0 or 1 */#define PMU_IOC_HAS_ADB		_IOR('B', 4, size_t) /* out param: u32*	can_sleep: 0 or 1 */#define PMU_IOC_CAN_SLEEP	_IOR('B', 5, size_t) /* no param, but historically was _IOR('B', 6, 0), meaning 4 bytes */#define PMU_IOC_GRAB_BACKLIGHT	_IOR('B', 6, size_t) #ifdef __KERNEL__extern int find_via_pmu(void);extern int pmu_request(struct adb_request *req,		void (*done)(struct adb_request *), int nbytes, ...);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 */extern void pmu_suspend(void);extern void pmu_resume(void);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 int pmu_i2c_combined_read(int bus, int addr, int subaddr,  u8* data, int len);extern int pmu_i2c_stdsub_write(int bus, int addr, int subaddr,  u8* data, int len);extern int pmu_i2c_simple_read(int bus, int addr,  u8* data, int len);extern int pmu_i2c_simple_write(int bus, int addr,  u8* data, int len);#ifdef CONFIG_PMAC_PBOOK/* * Stuff for putting the powerbook to sleep and waking it again. * */#include <linux/list.h>struct pmu_sleep_notifier{	int (*notifier_call)(struct pmu_sleep_notifier *self, int when);	int priority;	struct list_head list;};/* Code values for calling sleep/wakeup handlers * * Note: If a sleep request got cancelled, all drivers will get * the PBOOK_SLEEP_REJECT, even those who didn't get the PBOOK_SLEEP_REQUEST. */#define PBOOK_SLEEP_REQUEST	1#define PBOOK_SLEEP_NOW		2#define PBOOK_SLEEP_REJECT	3#define PBOOK_WAKE		4/* Result codes returned by the notifiers */#define PBOOK_SLEEP_OK		0#define PBOOK_SLEEP_REFUSE	-1/* priority levels in notifiers */#define SLEEP_LEVEL_VIDEO	100	/* Video driver (first wake) */#define SLEEP_LEVEL_MEDIABAY	90	/* Media bay driver */#define SLEEP_LEVEL_BLOCK	80	/* IDE, SCSI */#define SLEEP_LEVEL_NET		70	/* bmac, gmac */#define SLEEP_LEVEL_MISC	60	/* Anything else */#define SLEEP_LEVEL_USERLAND	55	/* Reserved for apm_emu */#define SLEEP_LEVEL_ADB		50	/* ADB (async) */#define SLEEP_LEVEL_SOUND	40	/* Sound driver (blocking) *//* special register notifier functions */int pmu_register_sleep_notifier(struct pmu_sleep_notifier* notifier);int pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* notifier);#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;#endif /* CONFIG_PMAC_PBOOK */#endif	/* __KERNEL__ */