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