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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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* Definitions for talking to the PMU. The PMU is a microcontroller

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* which controls battery charging and system power on PowerBook 3400

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* and 2400 models as well as the RTC and various other things.

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#ifndef _LINUX_PMU_H

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#define _LINUX_PMU_H

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#define PMU_DRIVER_VERSION 2

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* PMU commands

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#define PMU_POWER_CTRL0 0x10 /* control power of some devices */

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#define PMU_POWER_CTRL 0x11 /* control power of some devices */

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#define PMU_ADB_CMD 0x20 /* send ADB packet */

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#define PMU_ADB_POLL_OFF 0x21 /* disable ADB auto-poll */

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#define PMU_WRITE_NVRAM 0x33 /* write non-volatile RAM */

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#define PMU_READ_NVRAM 0x3b /* read non-volatile RAM */

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#define PMU_SET_RTC 0x30 /* set real-time clock */

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#define PMU_READ_RTC 0x38 /* read real-time clock */

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#define PMU_SET_VOLBUTTON 0x40 /* set volume up/down position */

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#define PMU_BACKLIGHT_BRIGHT 0x41 /* set backlight brightness */

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#define PMU_GET_VOLBUTTON 0x48 /* get volume up/down position */

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#define PMU_PCEJECT 0x4c /* eject PC-card from slot */

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#define PMU_BATTERY_STATE 0x6b /* report battery state etc. */

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#define PMU_SMART_BATTERY_STATE 0x6f /* report battery state (new way) */

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#define PMU_SET_INTR_MASK 0x70 /* set PMU interrupt mask */

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#define PMU_INT_ACK 0x78 /* read interrupt bits */

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#define PMU_SHUTDOWN 0x7e /* turn power off */

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#define PMU_CPU_SPEED 0x7d /* control CPU speed on some models */

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#define PMU_SLEEP 0x7f /* put CPU to sleep */

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#define PMU_POWER_EVENTS 0x8f /* Send power-event commands to PMU */

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#define PMU_I2C_CMD 0x9a /* I2C operations */

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#define PMU_RESET 0xd0 /* reset CPU */

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#define PMU_GET_BRIGHTBUTTON 0xd9 /* report brightness up/down pos */

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#define PMU_GET_COVER 0xdc /* report cover open/closed */

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#define PMU_SYSTEM_READY 0xdf /* tell PMU we are awake */

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#define PMU_GET_VERSION 0xea /* read the PMU version */

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/* Bits to use with the PMU_POWER_CTRL0 command */

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#define PMU_POW0_ON 0x80 /* OR this to power ON the device */

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#define PMU_POW0_OFF 0x00 /* leave bit 7 to 0 to power it OFF */

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#define PMU_POW0_HARD_DRIVE 0x04 /* Hard drive power (on wallstreet/lombard ?) */

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/* Bits to use with the PMU_POWER_CTRL command */

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#define PMU_POW_ON 0x80 /* OR this to power ON the device */

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#define PMU_POW_OFF 0x00 /* leave bit 7 to 0 to power it OFF */

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#define PMU_POW_BACKLIGHT 0x01 /* backlight power */

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#define PMU_POW_CHARGER 0x02 /* battery charger power */

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#define PMU_POW_IRLED 0x04 /* IR led power (on wallstreet) */

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#define PMU_POW_MEDIABAY 0x08 /* media bay power (wallstreet/lombard ?) */

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/* Bits in PMU interrupt and interrupt mask bytes */

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#define PMU_INT_PCEJECT 0x04 /* PC-card eject buttons */

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#define PMU_INT_SNDBRT 0x08 /* sound/brightness up/down buttons */

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#define PMU_INT_ADB 0x10 /* ADB autopoll or reply data */

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#define PMU_INT_BATTERY 0x20 /* Battery state change */

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#define PMU_INT_ENVIRONMENT 0x40 /* Environment interrupts */

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#define PMU_INT_TICK 0x80 /* 1-second tick interrupt */

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/* Other bits in PMU interrupt valid when PMU_INT_ADB is set */

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#define PMU_INT_ADB_AUTO 0x04 /* ADB autopoll, when PMU_INT_ADB */

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#define PMU_INT_WAITING_CHARGER 0x01 /* ??? */

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#define PMU_INT_AUTO_SRQ_POLL 0x02 /* ??? */

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/* Bits in the environement message (either obtained via PMU_GET_COVER,

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* or via PMU_INT_ENVIRONMENT on core99 */

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#define PMU_ENV_LID_CLOSED 0x01 /* The lid is closed */

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/* I2C related definitions */

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#define PMU_I2C_MODE_SIMPLE 0

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#define PMU_I2C_MODE_STDSUB 1

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#define PMU_I2C_MODE_COMBINED 2

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#define PMU_I2C_BUS_STATUS 0

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#define PMU_I2C_BUS_SYSCLK 1

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#define PMU_I2C_BUS_POWER 2

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#define PMU_I2C_STATUS_OK 0

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#define PMU_I2C_STATUS_DATAREAD 1

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#define PMU_I2C_STATUS_BUSY 0xfe

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/* Kind of PMU (model) */

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enum {

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PMU_UNKNOWN,

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PMU_OHARE_BASED, /* 2400, 3400, 3500 (old G3 powerbook) */

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PMU_HEATHROW_BASED, /* PowerBook G3 series */

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PMU_PADDINGTON_BASED, /* 1999 PowerBook G3 */

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PMU_KEYLARGO_BASED, /* Core99 motherboard (PMU99) */

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PMU_68K_V1, /* 68K PMU, version 1 */

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PMU_68K_V2, /* 68K PMU, version 2 */

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};

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/* PMU PMU_POWER_EVENTS commands */

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enum {

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PMU_PWR_GET_POWERUP_EVENTS = 0x00,

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PMU_PWR_SET_POWERUP_EVENTS = 0x01,

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PMU_PWR_CLR_POWERUP_EVENTS = 0x02,

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PMU_PWR_GET_WAKEUP_EVENTS = 0x03,

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PMU_PWR_SET_WAKEUP_EVENTS = 0x04,

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PMU_PWR_CLR_WAKEUP_EVENTS = 0x05,

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};

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/* Power events wakeup bits */

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enum {

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PMU_PWR_WAKEUP_KEY = 0x01, /* Wake on key press */

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PMU_PWR_WAKEUP_AC_INSERT = 0x02, /* Wake on AC adapter plug */

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PMU_PWR_WAKEUP_AC_CHANGE = 0x04,

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PMU_PWR_WAKEUP_LID_OPEN = 0x08,

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PMU_PWR_WAKEUP_RING = 0x10,

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};

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* Ioctl commands for the /dev/pmu device

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#include <linux/ioctl.h>

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/* no param */

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#define PMU_IOC_SLEEP _IO('B', 0)

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/* out param: u32* backlight value: 0 to 15 */

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#define PMU_IOC_GET_BACKLIGHT _IOR('B', 1, size_t)

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/* in param: u32 backlight value: 0 to 15 */

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#define PMU_IOC_SET_BACKLIGHT _IOW('B', 2, size_t)

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/* out param: u32* PMU model */

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#define PMU_IOC_GET_MODEL _IOR('B', 3, size_t)

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/* out param: u32* has_adb: 0 or 1 */

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#define PMU_IOC_HAS_ADB _IOR('B', 4, size_t)

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/* out param: u32* can_sleep: 0 or 1 */

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#define PMU_IOC_CAN_SLEEP _IOR('B', 5, size_t)

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/* no param, but historically was _IOR('B', 6, 0), meaning 4 bytes */

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#define PMU_IOC_GRAB_BACKLIGHT _IOR('B', 6, size_t)

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#endif /* _LINUX_PMU_H */

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