include/uapi/linux/pmu.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/pmu.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/pmu.h
Extension
.h
Size
5459 bytes
Lines
143
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _UAPI_LINUX_PMU_H
#define _UAPI_LINUX_PMU_H

#define PMU_DRIVER_VERSION	2

/*
 * PMU commands
 */
#define PMU_POWER_CTRL0		0x10	/* control power of some devices */
#define PMU_POWER_CTRL		0x11	/* control power of some devices */
#define PMU_ADB_CMD		0x20	/* send ADB packet */
#define PMU_ADB_POLL_OFF	0x21	/* disable ADB auto-poll */
#define PMU_WRITE_XPRAM		0x32	/* write eXtended Parameter RAM */
#define PMU_WRITE_NVRAM		0x33	/* write non-volatile RAM */
#define PMU_READ_XPRAM		0x3a	/* read eXtended Parameter RAM */
#define PMU_READ_NVRAM		0x3b	/* read non-volatile RAM */
#define PMU_SET_RTC		0x30	/* set real-time clock */
#define PMU_READ_RTC		0x38	/* read real-time clock */
#define PMU_SET_VOLBUTTON	0x40	/* set volume up/down position */
#define PMU_BACKLIGHT_BRIGHT	0x41	/* set backlight brightness */
#define PMU_GET_VOLBUTTON	0x48	/* get volume up/down position */
#define PMU_PCEJECT		0x4c	/* eject PC-card from slot */
#define PMU_BATTERY_STATE	0x6b	/* report battery state etc. */
#define PMU_SMART_BATTERY_STATE	0x6f	/* report battery state (new way) */
#define PMU_SET_INTR_MASK	0x70	/* set PMU interrupt mask */
#define PMU_INT_ACK		0x78	/* read interrupt bits */
#define PMU_SHUTDOWN		0x7e	/* turn power off */
#define PMU_CPU_SPEED		0x7d	/* control CPU speed on some models */
#define PMU_SLEEP		0x7f	/* put CPU to sleep */
#define PMU_POWER_EVENTS	0x8f	/* Send power-event commands to PMU */
#define PMU_I2C_CMD		0x9a	/* I2C operations */
#define PMU_RESET		0xd0	/* reset CPU */
#define PMU_GET_BRIGHTBUTTON	0xd9	/* report brightness up/down pos */
#define PMU_GET_COVER		0xdc	/* report cover open/closed */
#define PMU_SYSTEM_READY	0xdf	/* tell PMU we are awake */
#define PMU_GET_VERSION		0xea	/* read the PMU version */

/* Bits to use with the PMU_POWER_CTRL0 command */
#define PMU_POW0_ON		0x80	/* OR this to power ON the device */
#define PMU_POW0_OFF		0x00	/* leave bit 7 to 0 to power it OFF */
#define PMU_POW0_HARD_DRIVE	0x04	/* Hard drive power (on wallstreet/lombard ?) */

/* Bits to use with the PMU_POWER_CTRL command */
#define PMU_POW_ON		0x80	/* OR this to power ON the device */
#define PMU_POW_OFF		0x00	/* leave bit 7 to 0 to power it OFF */
#define PMU_POW_BACKLIGHT	0x01	/* backlight power */
#define PMU_POW_CHARGER		0x02	/* battery charger power */
#define PMU_POW_IRLED		0x04	/* IR led power (on wallstreet) */
#define PMU_POW_MEDIABAY	0x08	/* media bay power (wallstreet/lombard ?) */

/* Bits in PMU interrupt and interrupt mask bytes */
#define PMU_INT_PCEJECT		0x04	/* PC-card eject buttons */
#define PMU_INT_SNDBRT		0x08	/* sound/brightness up/down buttons */
#define PMU_INT_ADB		0x10	/* ADB autopoll or reply data */
#define PMU_INT_BATTERY		0x20	/* Battery state change */
#define PMU_INT_ENVIRONMENT	0x40	/* Environment interrupts */
#define PMU_INT_TICK		0x80	/* 1-second tick interrupt */

/* Other bits in PMU interrupt valid when PMU_INT_ADB is set */
#define PMU_INT_ADB_AUTO	0x04	/* ADB autopoll, when PMU_INT_ADB */
#define PMU_INT_WAITING_CHARGER	0x01	/* ??? */
#define PMU_INT_AUTO_SRQ_POLL	0x02	/* ??? */

/* Bits in the environement message (either obtained via PMU_GET_COVER,
 * or via PMU_INT_ENVIRONMENT on core99 */
#define PMU_ENV_LID_CLOSED	0x01	/* The lid is closed */

/* I2C related definitions */
#define PMU_I2C_MODE_SIMPLE	0
#define PMU_I2C_MODE_STDSUB	1
#define PMU_I2C_MODE_COMBINED	2

#define PMU_I2C_BUS_STATUS	0
#define PMU_I2C_BUS_SYSCLK	1
#define PMU_I2C_BUS_POWER	2

#define PMU_I2C_STATUS_OK	0
#define PMU_I2C_STATUS_DATAREAD	1
#define PMU_I2C_STATUS_BUSY	0xfe


/* Kind of PMU (model) */
enum {
	PMU_UNKNOWN,
	PMU_OHARE_BASED,	/* 2400, 3400, 3500 (old G3 powerbook) */
	PMU_HEATHROW_BASED,	/* PowerBook G3 series */
	PMU_PADDINGTON_BASED,	/* 1999 PowerBook G3 */
	PMU_KEYLARGO_BASED,	/* Core99 motherboard (PMU99) */
	PMU_68K_V1,		/* Unused/deprecated */
	PMU_68K_V2,		/* Unused/deprecated */

Annotation

Implementation Notes