519 lines
21 KiB
Plaintext
519 lines
21 KiB
Plaintext
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--------p-155300-----------------------------
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INT 15 - Advanced Power Management v1.0+ - INSTALLATION CHECK
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AX = 5300h
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BX = device ID of system BIOS (0000h)
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Return: CF clear if successful
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AH = major version (BCD)
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AL = minor version (BCD)
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BX = 504Dh ("PM")
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CX = flags (see #00472)
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CF set on error
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AH = error code (06h,09h,86h) (see #00473)
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BUG: early versions of the Award Modular BIOS with built-in APM support
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reportedly do not set BX on return
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Bitfields for APM flags:
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Bit(s) Description (Table 00472)
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0 16-bit protected mode interface supported
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1 32-bit protected mode interface supported
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2 CPU idle call reduces processor speed
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3 BIOS power management disabled
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4 BIOS power management disengaged (APM v1.1)
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5-7 reserved
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(Table 00473)
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Values for APM error code:
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01h power management functionality disabled
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02h interface connection already in effect
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03h interface not connected
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04h real-mode interface not connected
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05h 16-bit protected-mode interface already connected
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06h 16-bit protected-mode interface not supported
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07h 32-bit protected-mode interface already connected
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08h 32-bit protected-mode interface not supported
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09h unrecognized device ID
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0Ah invalid parameter value in CX
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0Bh (APM v1.1) interface not engaged
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0Ch (APM v1.2) function not supported
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0Dh (APM v1.2) Resume Timer disabled
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0Eh-1Fh reserved for other interface and general errors
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20h-3Fh reserved for CPU errors
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40h-5Fh reserved for device errors
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60h can't enter requested state
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61h-7Fh reserved for other system errors
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80h no power management events pending
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81h-85h reserved for other power management event errors
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86h APM not present
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87h-9Fh reserved for other power management event errors
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A0h-FEh reserved
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FFh undefined
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--------p-155301-----------------------------
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INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE
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AX = 5301h
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BX = device ID of system BIOS (0000h)
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Return: CF clear if successful
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CF set on error
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AH = error code (02h,05h,07h,09h) (see #00473)
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Note: on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
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compatibility mode until it is informed that the user supports a
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newer version of APM (see AX=530Eh)
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SeeAlso: AX=5302h,AX=5303h,AX=5304h
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--------p-155302-----------------------------
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INT 15 R - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE
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AX = 5302h
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BX = device ID of system BIOS (0000h)
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Return: CF clear if successful
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AX = real-mode segment base address of protected-mode 16-bit code
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segment
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BX = offset of entry point
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CX = real-mode segment base address of protected-mode 16-bit data
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segment
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---APM v1.1---
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SI = APM BIOS code segment length
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DI = APM BIOS data segment length
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CF set on error
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AH = error code (02h,05h,06h,07h,09h) (see #00473)
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Notes: the caller must initialize two consecutive descriptors with the
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returned segment base addresses; these descriptors must be valid
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whenever the protected-mode interface is called, and will have
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their limits arbitrarily set to 64K.
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the protected mode interface is invoked by making a far call with the
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same register values as for INT 15; it must be invoked while CPL=0,
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the code segment descriptor must have a DPL of 0, the stack must be
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in a 16-bit segment and have enough room for BIOS use and possible
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interrupts, and the current I/O permission bit map must allow access
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to the I/O ports used for power management.
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functions 00h-03h are not available from protected mode
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on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
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compatibility mode until it is informed that the user supports a
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newer version of APM (see AX=530Eh)
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SeeAlso: AX=5301h,AX=5303h,AX=5304h
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--------p-155303-----------------------------
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INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE
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AX = 5303h
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BX = device ID of system BIOS (0000h)
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Return: CF clear if successful
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AX = real-mode segment base address of protected-mode 32-bit code
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segment
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EBX = offset of entry point
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CX = real-mode segment base address of protected-mode 16-bit code
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segment
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DX = real-mode segment base address of protected-mode 16-bit data
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segment
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---APM v1.1---
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SI = APM BIOS code segment length
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DI = APM BIOS data segment length
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CF set on error
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AH = error code (02h,05h,07h,08h,09h) (see #00473)
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Notes: the caller must initialize three consecutive descriptors with the
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returned segment base addresses for 32-bit code, 16-bit code, and
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16-bit data, respectively; these descriptors must be valid whenever
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the protected-mode interface is called, and will have their limits
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arbitrarily set to 64K.
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the protected mode interface is invoked by making a far call to the
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32-bit code segment with the same register values as for INT 15; it
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must be invoked while CPL=0, the code segment descriptor must have a
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DPL of 0, the stack must be in a 32-bit segment and have enough room
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for BIOS use and possible interrupts, and the current I/O permission
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bit map must allow access to the I/O ports used for power management.
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functions 00h-03h are not available from protected mode
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on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
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compatibility mode until it is informed that the user supports a
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newer version of APM (see AX=530Eh)
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SeeAlso: AX=5301h,AX=5302h,AX=5304h
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--------p-155304-----------------------------
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INT 15 - Advanced Power Management v1.0+ - DISCONNECT INTERFACE
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AX = 5304h
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BX = device ID of system BIOS (0000h)
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Return: CF clear if successful
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CF set on error
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AH = error code (03h,09h) (see #00473)
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SeeAlso: AX=5301h,AX=5302h,AX=5303h
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--------p-155305-----------------------------
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INT 15 - Advanced Power Management v1.0+ - CPU IDLE
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AX = 5305h
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Return: CF clear if successful (after system leaves idle state)
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CF set on error
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AH = error code (03h,0Bh) (see #00473)
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Notes: call when the system is idle and should be suspended until the next
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system event or interrupt
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should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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if an interrupt causes the system to resume normal processing, the
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interrupt may or may not have been handled when the BIOS returns
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from this call; thus, the caller should allow interrupts on return
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interrupt handlers may not retain control if the BIOS allows
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interrupts while in idle mode even if they are able to determine
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that they were called from idle mode
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the caller should issue this call continuously in a loop until it needs
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to perform some processing of its own
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SeeAlso: AX=1000h,AX=5306h,INT 2F/AX=1680h
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--------p-155306-----------------------------
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INT 15 - Advanced Power Management v1.0+ - CPU BUSY
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AX = 5306h
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Return: CF clear if successful
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CF set on error
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AH = error code (03h,0Bh) (see #00473)
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Notes: called to ensure that the system runs at full speed even on systems
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where the BIOS is unable to recognize increased activity (especially
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if interrupts are hooked by other programs and not chained to the
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BIOS)
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this call may be made even when the system is already running at full
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speed, but it will create unnecessary overhead
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should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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SeeAlso: AX=5305h
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--------p-155307-----------------------------
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INT 15 - Advanced Power Management v1.0+ - SET POWER STATE
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AX = 5307h
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BX = device ID (see #00474)
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CX = system state ID (see #00475)
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Return: CF clear if successful
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CF set on error
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AH = error code (01h,03h,09h,0Ah,0Bh,60h) (see #00473)
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Note: should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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SeeAlso: AX=530Ch
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(Table 00474)
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Values for APM device IDs:
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0000h system BIOS
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0001h all devices for which the system BIOS manages power
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01xxh display (01FFh for all attached display devices)
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02xxh secondary storage (02FFh for all attached secondary storage devices)
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03xxh parallel ports (03FFh for all attached parallel ports)
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04xxh serial ports (04FFh for all attached serial ports)
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---APM v1.1+ ---
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05xxh network adapters (05FFh for all attached network adapters)
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06xxh PCMCIA sockets (06FFh for all)
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0700h-7FFFh reserved
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80xxh system battery devices (APM v1.2)
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8100h-DFFFh reserved
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Exxxh OEM-defined power device IDs
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F000h-FFFFh reserved
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(Table 00475)
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Values for system state ID:
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0000h ready (not supported for device ID 0001h)
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0001h stand-by
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0002h suspend
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0003h off (not supported for device ID 0001h in APM v1.0)
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---APM v1.1---
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0004h last request processing notification (only for device ID 0001h)
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0005h last request rejected (only for device ID 0001h)
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0006h-001Fh reserved system states
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0020h-003Fh OEM-defined system states
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0040h-007Fh OEM-defined device states
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0080h-FFFFh reserved device states
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--------p-155307CX0001-----------------------
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INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY
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AX = 5307h
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CX = 0001h
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BX = 0001h (device ID for all power-managed devices)
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Return: CF clear
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Notes: puts the entire system into stand-by mode; normally called in response
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to a System Stand-by Request notification after any necessary
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processing, but may also be invoked at the caller's discretion
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should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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the stand-by state is typically exited on an interrupt
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SeeAlso: AX=4280h,AX=5307h/CX=0002h"SUSPEND",AX=5307h/CX=0003h,AX=530Bh
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--------p-155307CX0002-----------------------
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INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM
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AX = 5307h
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CX = 0002h
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BX = 0001h (device ID for all power-managed devices)
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Return: after system is resumed
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CF clear
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Notes: puts the entire system into a low-power suspended state; normally
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called in response to a Suspend System Request notification after
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any necessary processing, but may also be invoked at the caller's
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discretion
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should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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the caller may need to update its date and time values because the
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system could have been suspended for a long period of time
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SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh
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--------p-155307CX0003-----------------------
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INT 15 - Advanced Power Management v1.2 - TURN OFF SYSTEM
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AX = 5307h
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CX = 0003h
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BX = 0001h (device ID for all power-managed devices)
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Return: after system is resumed
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CF clear
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Notes: if supported by the system's power supply, turns off the system power
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SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh
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--------p-155308-----------------------------
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INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT
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AX = 5308h
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BX = device ID for all devices power-managed by APM
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0001h (APM v1.1+)
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FFFFh (APM v1.0)
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CX = new state
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0000h disabled
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0001h enabled
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Return: CF clear if successful
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CF set on error
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AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
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Notes: when power management is disabled, the system BIOS will not
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automatically power down devices, enter stand-by or suspended mode,
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or perform any power-saving actions in response to AX=5305h calls
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should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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the APM BIOS should never be both disabled and disengaged at the same
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time
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SeeAlso: AX=5309h,AX=530Dh,AX=530Fh
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--------p-155309-----------------------------
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INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS
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AX = 5309h
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BX = device ID for all devices power-managed by APM
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0001h (APM v1.1)
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FFFFh (APM v1.0)
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Return: CF clear if successful
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CF set on error
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AH = error code (03h,09h,0Bh) (see #00473)
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Note: should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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SeeAlso: AX=5308h
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--------p-15530A-----------------------------
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INT 15 - Advanced Power Management v1.0+ - GET POWER STATUS
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AX = 530Ah
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BX = device ID
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0001h all devices power-managed by APM
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80xxh specific battery unit number XXh (01h-FFh) (APM v1.2)
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Return: CF clear if successful
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BH = AC line status
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00h off-line
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01h on-line
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02h on backup power (APM v1.1)
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FFh unknown
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other reserved
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BL = battery status (see #00476)
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CH = battery flag (APM v1.1+) (see #00477)
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CL = remaining battery life, percentage
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00h-64h (0-100) percentage of full charge
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FFh unknown
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DX = remaining battery life, time (APM v1.1) (see #00478)
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---if specific battery unit specified---
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SI = number of battery units currently installed
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CF set on error
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AH = error code (09h,0Ah) (see #00473)
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Notes: should not be called from within a hardware interrupt handler to avoid
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reentrance problems
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supported in real mode (INT 15) and both 16-bit and 32-bit protected
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mode
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(Table 00476)
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Values for APM v1.0+ battery status:
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00h high
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01h low
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02h critical
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03h charging
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FFh unknown
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other reserved
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SeeAlso: #00477,#00478
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Bitfields for APM v1.1+ battery flag:
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Bit(s) Description (Table 00477)
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0 high
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1 low
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2 critical
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3 charging
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4 selected battery not present (APM v1.2)
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5-6 reserved (0)
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7 no system battery
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Note: all bits set (FFh) if unknown
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SeeAlso: #00476,#00478
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Bitfields for APM v1.1+ remaining battery life:
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Bit(s) Description (Table 00478)
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15 time units: 0=seconds, 1=minutes
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14-0 battery life in minutes or seconds
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Note: all bits set (FFFFh) if unknown
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SeeAlso: #00476,#00477
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--------p-15530B-----------------------------
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INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT
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AX = 530Bh
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Return: CF clear if successful
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BX = event code (see #00479)
|
||
|
|
CX = event information (APM v1.2) if BX=0003h or BX=0004h
|
||
|
|
bit 0: PCMCIA socket was powered down in suspend state
|
||
|
|
CF set on error
|
||
|
|
AH = error code (03h,0Bh,80h) (see #00473)
|
||
|
|
Notes: although power management events are often asynchronous, notification
|
||
|
|
will not be made until polled via this call to permit software to
|
||
|
|
only receive event notification when it is prepared to process
|
||
|
|
power management events; since these events are not very time-
|
||
|
|
critical, it should be sufficient to poll once or twice per second
|
||
|
|
the critical resume notification is made after the system resumes
|
||
|
|
from an emergency suspension; normally, the system BIOS only notifies
|
||
|
|
its partner that it wishes to suspend and relies on the partner to
|
||
|
|
actually request the suspension, but no notification is made on an
|
||
|
|
emergency suspension
|
||
|
|
should not be called from within a hardware interrupt handler to avoid
|
||
|
|
reentrance problems
|
||
|
|
SeeAlso: AX=5307h,AX=5307h/CX=0001h"STAND-BY",AX=5307h/CX=0002h"SUSPEND"
|
||
|
|
|
||
|
|
(Table 00479)
|
||
|
|
Values for APM event code:
|
||
|
|
0001h system stand-by request
|
||
|
|
0002h system suspend request
|
||
|
|
0003h normal resume system notification
|
||
|
|
0004h critical resume system notification
|
||
|
|
0005h battery low notification
|
||
|
|
---APM v1.1---
|
||
|
|
0006h power status change notification
|
||
|
|
0007h update time notification
|
||
|
|
0008h critical system suspend notification
|
||
|
|
0009h user system standby request notification
|
||
|
|
000Ah user system suspend request notification
|
||
|
|
000Bh system standby resume notification
|
||
|
|
---APM v1.2---
|
||
|
|
000Ch capabilities change notification (see AX=5310h)
|
||
|
|
------
|
||
|
|
000Dh-00FFh reserved system events
|
||
|
|
01xxh reserved device events
|
||
|
|
02xxh OEM-defined APM events
|
||
|
|
0300h-FFFFh reserved
|
||
|
|
--------p-15530C-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.1+ - GET POWER STATE
|
||
|
|
AX = 530Ch
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
Return: CF clear if successful
|
||
|
|
CX = system state ID (see #00475)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (01h,09h) (see #00473)
|
||
|
|
SeeAlso: AX=5307h
|
||
|
|
--------p-15530D-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.1+ - EN/DISABLE DEVICE POWER MANAGEMENT
|
||
|
|
AX = 530Dh
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
CX = function
|
||
|
|
0000h disable power management
|
||
|
|
0001h enable power management
|
||
|
|
Return: CF clear if successful
|
||
|
|
CF set on error
|
||
|
|
AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
|
||
|
|
Desc: specify whether automatic power management should be active for a
|
||
|
|
given device
|
||
|
|
SeeAlso: AX=5308h,AX=530Fh
|
||
|
|
--------p-15530E-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.1+ - DRIVER VERSION
|
||
|
|
AX = 530Eh
|
||
|
|
BX = device ID of system BIOS (0000h)
|
||
|
|
CH = APM driver major version (BCD)
|
||
|
|
CL = APM driver minor version (BCD) (02h for APM v1.2)
|
||
|
|
Return: CF clear if successful
|
||
|
|
AH = APM connection major version (BCD)
|
||
|
|
AL = APM connection minor version (BCD)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (03h,09h,0Bh) (see #00473)
|
||
|
|
SeeAlso: AX=5300h,AX=5303h
|
||
|
|
--------p-15530F-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.1+ - ENGAGE/DISENGAGE POWER MANAGEMENT
|
||
|
|
AX = 530Fh
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
CX = function
|
||
|
|
0000h disengage power management
|
||
|
|
0001h engage power management
|
||
|
|
Return: CF clear if successful
|
||
|
|
CF set on error
|
||
|
|
AH = error code (01h,09h) (see #00473)
|
||
|
|
Notes: unlike AX=5308h, this call does not affect the functioning of the APM
|
||
|
|
BIOS
|
||
|
|
when cooperative power management is disengaged, the APM BIOS performs
|
||
|
|
automatic power management of the system or device
|
||
|
|
SeeAlso: AX=5308h,AX=530Dh
|
||
|
|
--------p-155310-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES
|
||
|
|
AX = 5310h
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
0000h (APM BIOS)
|
||
|
|
other reserved
|
||
|
|
Return: CF clear if successful
|
||
|
|
BL = number of battery units supported (00h if no system batteries)
|
||
|
|
CX = capabilities flags (see #00480)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (01h,09h,86h) (see #00473)
|
||
|
|
Notes: this function is supported via the INT 15, 16-bit protected mode, and
|
||
|
|
32-bit protected mode interfaces; it does not require that a
|
||
|
|
connection be established prior to use
|
||
|
|
this function will return the capabilities currently in effect, not
|
||
|
|
any new settings which have been made but do not take effect until
|
||
|
|
a system restart
|
||
|
|
SeeAlso: AX=5300h,AX=530Fh,AX=5311h,AX=5312h,AX=5313h
|
||
|
|
|
||
|
|
Bitfields for APM v1.2 capabilities flags:
|
||
|
|
Bit(s) Description (Table 00480)
|
||
|
|
15-8 reserved
|
||
|
|
7 PCMCIA Ring Indicator will wake up system from suspend mode
|
||
|
|
6 PCMCIA Ring Indicator will wake up system from standby mode
|
||
|
|
5 Resume on Ring Indicator will wake up system from suspend mode
|
||
|
|
4 Resume on Ring Indicator will wake up system from standby mode
|
||
|
|
3 resume timer will wake up system from suspend mode
|
||
|
|
2 resume timer will wake up system from standby mode
|
||
|
|
1 can enter global suspend state
|
||
|
|
0 can enter global standby state
|
||
|
|
--------p-155311-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.2 - GET/SET/DISABLE RESUME TIMER
|
||
|
|
AX = 5311h
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
0000h (APM BIOS)
|
||
|
|
other reserved
|
||
|
|
CL = function
|
||
|
|
00h disable Resume Timer
|
||
|
|
01h get Resume Timer
|
||
|
|
02h set Resume Timer
|
||
|
|
CH = resume time, seconds (BCD)
|
||
|
|
DL = resume time, minutes (BCD)
|
||
|
|
DH = resume time, hours (BCD)
|
||
|
|
SI = resume date (BCD), high byte = month, low byte = day
|
||
|
|
DI = resume date, year (BCD)
|
||
|
|
Return: CF clear if successful
|
||
|
|
---if getting timer---
|
||
|
|
CH = resume time, seconds (BCD)
|
||
|
|
DL = resume time, minutes (BCD)
|
||
|
|
DH = resume time, hours (BCD)
|
||
|
|
SI = resume date (BCD), high byte = month, low byte = day
|
||
|
|
DI = resume date, year (BCD)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (03h,09h,0Ah,0Bh,0Ch,0Dh,86h) (see #00473)
|
||
|
|
Notes: this function is supported via the INT 15, 16-bit protected mode, and
|
||
|
|
32-bit protected mode interfaces
|
||
|
|
SeeAlso: AX=5300h,AX=5310h,AX=5312h,AX=5313h
|
||
|
|
--------p-155312-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE RESUME ON RING
|
||
|
|
AX = 5312h
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
0000h (APM BIOS)
|
||
|
|
other reserved
|
||
|
|
CL = function
|
||
|
|
00h disable Resume on Ring Indicator
|
||
|
|
01h enable Resume on Ring Indicator
|
||
|
|
02h get Resume on Ring Indicator status
|
||
|
|
Return: CF clear if successful
|
||
|
|
CX = resume status (0000h disabled, 0001h enabled)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (03h,09h,0Ah,0Bh,0Ch,86h) (see #00473)
|
||
|
|
Notes: this function is supported via the INT 15, 16-bit protected mode, and
|
||
|
|
32-bit protected mode interfaces
|
||
|
|
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5313h
|
||
|
|
--------p-155313-----------------------------
|
||
|
|
INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE TIMER-BASED REQUESTS
|
||
|
|
AX = 5313h
|
||
|
|
BX = device ID (see #00474)
|
||
|
|
0000h (APM BIOS)
|
||
|
|
other reserved
|
||
|
|
CL = function
|
||
|
|
00h disable timer-based requests
|
||
|
|
01h enable timer-based requests
|
||
|
|
02h get timer-based requests status
|
||
|
|
Return: CF clear if successful
|
||
|
|
CX = timer-based requests status (0000h disabled, 0001h enabled)
|
||
|
|
CF set on error
|
||
|
|
AH = error code (03h,09h,0Ah,0Bh,86h) (see #00473)
|
||
|
|
Notes: this function is supported via the INT 15, 16-bit protected mode, and
|
||
|
|
32-bit protected mode interfaces
|
||
|
|
some BIOSes set AH on return even when successful
|
||
|
|
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5312h
|