1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 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 10#ifndef _UAPI_LINUX_PMU_H 11#define _UAPI_LINUX_PMU_H 12 13#define PMU_DRIVER_VERSION 2 14 15/* 16 * PMU commands 17 */ 18#define PMU_POWER_CTRL0 0x10 /* control power of some devices */ 19#define PMU_POWER_CTRL 0x11 /* control power of some devices */ 20#define PMU_ADB_CMD 0x20 /* send ADB packet */ 21#define PMU_ADB_POLL_OFF 0x21 /* disable ADB auto-poll */ 22#define PMU_WRITE_XPRAM 0x32 /* write eXtended Parameter RAM */ 23#define PMU_WRITE_NVRAM 0x33 /* write non-volatile RAM */ 24#define PMU_READ_XPRAM 0x3a /* read eXtended Parameter RAM */ 25#define PMU_READ_NVRAM 0x3b /* read non-volatile RAM */ 26#define PMU_SET_RTC 0x30 /* set real-time clock */ 27#define PMU_READ_RTC 0x38 /* read real-time clock */ 28#define PMU_SET_VOLBUTTON 0x40 /* set volume up/down position */ 29#define PMU_BACKLIGHT_BRIGHT 0x41 /* set backlight brightness */ 30#define PMU_GET_VOLBUTTON 0x48 /* get volume up/down position */ 31#define PMU_PCEJECT 0x4c /* eject PC-card from slot */ 32#define PMU_BATTERY_STATE 0x6b /* report battery state etc. */ 33#define PMU_SMART_BATTERY_STATE 0x6f /* report battery state (new way) */ 34#define PMU_SET_INTR_MASK 0x70 /* set PMU interrupt mask */ 35#define PMU_INT_ACK 0x78 /* read interrupt bits */ 36#define PMU_SHUTDOWN 0x7e /* turn power off */ 37#define PMU_CPU_SPEED 0x7d /* control CPU speed on some models */ 38#define PMU_SLEEP 0x7f /* put CPU to sleep */ 39#define PMU_POWER_EVENTS 0x8f /* Send power-event commands to PMU */ 40#define PMU_I2C_CMD 0x9a /* I2C operations */ 41#define PMU_RESET 0xd0 /* reset CPU */ 42#define PMU_GET_BRIGHTBUTTON 0xd9 /* report brightness up/down pos */ 43#define PMU_GET_COVER 0xdc /* report cover open/closed */ 44#define PMU_SYSTEM_READY 0xdf /* tell PMU we are awake */ 45#define PMU_GET_VERSION 0xea /* read the PMU version */ 46 47/* Bits to use with the PMU_POWER_CTRL0 command */ 48#define PMU_POW0_ON 0x80 /* OR this to power ON the device */ 49#define PMU_POW0_OFF 0x00 /* leave bit 7 to 0 to power it OFF */ 50#define PMU_POW0_HARD_DRIVE 0x04 /* Hard drive power (on wallstreet/lombard ?) */ 51 52/* Bits to use with the PMU_POWER_CTRL command */ 53#define PMU_POW_ON 0x80 /* OR this to power ON the device */ 54#define PMU_POW_OFF 0x00 /* leave bit 7 to 0 to power it OFF */ 55#define PMU_POW_BACKLIGHT 0x01 /* backlight power */ 56#define PMU_POW_CHARGER 0x02 /* battery charger power */ 57#define PMU_POW_IRLED 0x04 /* IR led power (on wallstreet) */ 58#define PMU_POW_MEDIABAY 0x08 /* media bay power (wallstreet/lombard ?) */ 59 60/* Bits in PMU interrupt and interrupt mask bytes */ 61#define PMU_INT_PCEJECT 0x04 /* PC-card eject buttons */ 62#define PMU_INT_SNDBRT 0x08 /* sound/brightness up/down buttons */ 63#define PMU_INT_ADB 0x10 /* ADB autopoll or reply data */ 64#define PMU_INT_BATTERY 0x20 /* Battery state change */ 65#define PMU_INT_ENVIRONMENT 0x40 /* Environment interrupts */ 66#define PMU_INT_TICK 0x80 /* 1-second tick interrupt */ 67 68/* Other bits in PMU interrupt valid when PMU_INT_ADB is set */ 69#define PMU_INT_ADB_AUTO 0x04 /* ADB autopoll, when PMU_INT_ADB */ 70#define PMU_INT_WAITING_CHARGER 0x01 /* ??? */ 71#define PMU_INT_AUTO_SRQ_POLL 0x02 /* ??? */ 72 73/* Bits in the environement message (either obtained via PMU_GET_COVER, 74 * or via PMU_INT_ENVIRONMENT on core99 */ 75#define PMU_ENV_LID_CLOSED 0x01 /* The lid is closed */ 76 77/* I2C related definitions */ 78#define PMU_I2C_MODE_SIMPLE 0 79#define PMU_I2C_MODE_STDSUB 1 80#define PMU_I2C_MODE_COMBINED 2 81 82#define PMU_I2C_BUS_STATUS 0 83#define PMU_I2C_BUS_SYSCLK 1 84#define PMU_I2C_BUS_POWER 2 85 86#define PMU_I2C_STATUS_OK 0 87#define PMU_I2C_STATUS_DATAREAD 1 88#define PMU_I2C_STATUS_BUSY 0xfe 89 90 91/* Kind of PMU (model) */ 92enum { 93 PMU_UNKNOWN, 94 PMU_OHARE_BASED, /* 2400, 3400, 3500 (old G3 powerbook) */ 95 PMU_HEATHROW_BASED, /* PowerBook G3 series */ 96 PMU_PADDINGTON_BASED, /* 1999 PowerBook G3 */ 97 PMU_KEYLARGO_BASED, /* Core99 motherboard (PMU99) */ 98 PMU_68K_V1, /* Unused/deprecated */ 99 PMU_68K_V2, /* Unused/deprecated */ 100}; 101 102/* PMU PMU_POWER_EVENTS commands */ 103enum { 104 PMU_PWR_GET_POWERUP_EVENTS = 0x00, 105 PMU_PWR_SET_POWERUP_EVENTS = 0x01, 106 PMU_PWR_CLR_POWERUP_EVENTS = 0x02, 107 PMU_PWR_GET_WAKEUP_EVENTS = 0x03, 108 PMU_PWR_SET_WAKEUP_EVENTS = 0x04, 109 PMU_PWR_CLR_WAKEUP_EVENTS = 0x05, 110}; 111 112/* Power events wakeup bits */ 113enum { 114 PMU_PWR_WAKEUP_KEY = 0x01, /* Wake on key press */ 115 PMU_PWR_WAKEUP_AC_INSERT = 0x02, /* Wake on AC adapter plug */ 116 PMU_PWR_WAKEUP_AC_CHANGE = 0x04, 117 PMU_PWR_WAKEUP_LID_OPEN = 0x08, 118 PMU_PWR_WAKEUP_RING = 0x10, 119}; 120 121/* 122 * Ioctl commands for the /dev/pmu device 123 */ 124#include <linux/ioctl.h> 125 126/* no param */ 127#define PMU_IOC_SLEEP _IO('B', 0) 128/* out param: u32* backlight value: 0 to 15 */ 129#define PMU_IOC_GET_BACKLIGHT _IOR('B', 1, size_t) 130/* in param: u32 backlight value: 0 to 15 */ 131#define PMU_IOC_SET_BACKLIGHT _IOW('B', 2, size_t) 132/* out param: u32* PMU model */ 133#define PMU_IOC_GET_MODEL _IOR('B', 3, size_t) 134/* out param: u32* has_adb: 0 or 1 */ 135#define PMU_IOC_HAS_ADB _IOR('B', 4, size_t) 136/* out param: u32* can_sleep: 0 or 1 */ 137#define PMU_IOC_CAN_SLEEP _IOR('B', 5, size_t) 138/* no param, but historically was _IOR('B', 6, 0), meaning 4 bytes */ 139#define PMU_IOC_GRAB_BACKLIGHT _IOR('B', 6, size_t) 140 141 142#endif /* _UAPI_LINUX_PMU_H */ 143