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pmu.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * 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 #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) #endif /* _LINUX_PMU_H */