LXR linux/include/uapi/linux/pmu.h

   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) */
  90enum {
  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,             /* 68K PMU, version 1 */
  97        PMU_68K_V2,             /* 68K PMU, version 2 */
  98};
  99
 100/* PMU PMU_POWER_EVENTS commands */
 101enum {
 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 */
 111enum {
 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