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) */ 92 enum { 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 */ 103 enum { 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 */ 113 enum { 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