pmupost.asm

惠普公司bios完整源代码大机密!

;Procedure:	Clear_PM_RAM
;
;Function :	Clear power management data area (PM_RAM segment)
;		This routine is used to clear extended BIOS data area
;		in order to provide a clean environment for power
;		management code
;
;Input	  :	ES : PM_RAM

;Output   :	None
;
;Registers:	all registers preserved except FLAGS
;
;[Note]   :	called from PM_INIT
;[]==================================================================[]
		Public	Clear_PM_RAM
Clear_PM_RAM	Proc	Near
		ASSUME	ES:PM_RAM

		pusha
		mov	di,offset PM_RAM:PM_RAM_START
		mov	cx,PM_RAM_LEN
		xor	ax,ax
		cld
		rep	stosb
		popa
		ret

Clear_PM_RAM	Endp

;[]========================================================================[]
;Procedure:	Ct_PMRAM_Use_SYSRAM
;
;Function :	To tell the BIOS kernel that if you are using the SYSRAM
;		for PM_RAM
;
;Input	  :	None
;
;Output   :	AL = Size of PM_RAM that you want to reserved from SYSRAM.
;		0=None, 1=1K, 2=2k  etc.
;
;Save	  :	All registers except AL & FLAGS
;
;Note	  :	1. called before PM_INIT (POST 79)
;		2. simply return AL=0 if PM_RAM is located at shadow RAM
;		   or SMRAM
;		4. stack available
;[]========================================================================[]
		Public	Ct_PMRAM_Use_SYSRAM
Ct_PMRAM_Use_SYSRAM	Proc	Near
		xor	al,al
		ret
Ct_PMRAM_Use_SYSRAM	Endp

;[]========================================================================[]
;Procedure:	Ct_Early_PM_Init
;
;Function :	Early PM chip initializations
;
;Input	  :	None
;
;Output   :	None
;
;Preserve :	All
;
;Note	  :	1. Call from POST 9
;		2. Stack available
;		3. You can initialize any PM function which is needed
;		   to be done earlier!
;[]========================================================================[]
		Public	Ct_Early_PM_Init
Ct_Early_PM_Init	Proc	Near
 ifndef	MP_SUPPORT
		Post_Func_Call E000_Ct_Early_PM_Init
 endif;	MP_SUPPORT
		ret
Ct_Early_PM_Init	Endp

ifndef	New_Superio_Led_Function
ifdef	PM_LED_USE_GPIO
F000_Set_PM_LED Proc	Far
		call	Set_PM_LED
		retf
F000_Set_PM_LED Endp
endif;	PM_LED_USE_GPIO
ifdef	LED_Blinking_at_PM
F000_Set_PM_LED_Blinking Proc	Far
		call	Set_PM_LED_Blinking
		retf
F000_Set_PM_LED_Blinking Endp
endif;	LED_Blinking_at_PM
ifdef	POWER_LED_USE
F000_Set_POWER_LED Proc	Far
		call	Set_POWER_LED
		retf
F000_Set_POWER_LED Endp
endif;	POWER_LED_USE
else	;New_Superio_Led_Function
ifdef	LED_Blinking_at_PM
F000_LED_Flash	Proc	Far
		call	Set_POWER_LED
		retf
F000_LED_Flash	Endp
endif;	LED_Blinking_at_PM
endif	;New_Superio_Led_Function

;[]========================================================================[]
;Input	:	None
;Output	:	AL = 0 			 --> Currently MODEM Ring cannot
;					     wake up system
;		AL = RING_WAKEUP_ENABLED --> Currently MODEM Ring can
;					     wake up system
;[]========================================================================[]
		Public	CT_RING_WAKEUP_STATUS
CT_RING_WAKEUP_STATUS	Proc	Near

		mov	cx, VT586_ACPI + 44h
		call	Get_PMU
		mov	bl,al
		mov	[WAKE_MODEM0],al

		mov	cx,VT586_ACPI + 45h
		call	Get_PMU
		mov	bh,al
		mov	[WAKE_MODEM1],al

		mov	cx, VT586_ACPI + 46h
		call	Get_PMU
		or	bl,al

		mov	cx, VT586_ACPI + 47h
		call	Get_PMU
		mov	bh,al

		mov	word ptr PM_RAM:[DEASSERT_STPCLK_IRQS],bx

		extrn	Modem_IRQ_Item:near
		mov	si, offset Modem_IRQ_Item
		call	GetItem_Value
		mov	word ptr [APM_Modem_IRQ], 0
		or	al, al
		jz	short @F

		mov	bx, 1
		mov	cl, al
		shl	bx, cl
		mov	word ptr [APM_Modem_IRQ], bx
		or	word ptr PM_RAM:[DEASSERT_STPCLK_IRQS],bx
		or	byte ptr [WAKE_MODEM0],bl
		or	byte ptr [WAKE_MODEM1],bh

		test	ax,bx
		mov	al, RING_WAKEUP_ENABLED		;current ON
		jnz	short @F
		xor	al, al				;current OFF
	@@:
		ret

CT_RING_WAKEUP_STATUS	Endp

;[]========================================================================[]
;Input	:	None
;Output	:	AL = 0 			--> PM Timer is currently disabled
;		AL = PMU_TIMER_ENABLED	--> PM Timer is currently Enabled
;[]========================================================================[]
		Public	CT_PMU_TIMER_STATUS
CT_PMU_TIMER_STATUS	Proc	Near

		mov	al, PMU_TIMER_ENABLED		;assume enabled

		mov	cx,VT586_ACPI+50h
		call	Get_PMU
		test	al,80h
		jnz	short @F			;No
		xor	al, al				;all mode disable
	@@:
		ret

CT_PMU_TIMER_STATUS	Endp

;[]========================================================================[]
;Procedure:	Ct_PM_Final_Init
;
;Function :	PM initialization before boot
;
;Input    :	None
;
;Output   :	None
;
;Registers:	Please preserve all registers
;
;Note	  :	1. Call from POST 82
;		2. Stack available
;[]========================================================================[]
		Public	Ct_PM_Final_Init
Ct_PM_Final_Init	Proc	Near
		Post_Func_Call E000_Ct_PM_Final_Init
		ret
Ct_PM_Final_Init	Endp

;[]========================================================================[]
;Procedure:	Ct_PM_Init
;
;Function :	Special PM init which the standard code can't do
;
;Input	  :	DS = DGROUP
;		ES = PM_RAM
;
;Output   :	None
;
;Note	  :	1. Call from POST 79S (PM initialization)
;		2. Stack available
;		3. Don't destroy any SEGMENT registers!
;[]========================================================================[]
		ASSUME	ES:PM_RAM
		ASSUME	DS:DGROUP
		Public	Ct_PM_Init
Ct_PM_Init	Proc	Near
		Post_Func_Call E000_Ct_Pm_Init
		ret
Ct_PM_Init	Endp


;[]========================================================================[]
;Procedure:	Ct_LCD_Init
;
;Function :	Set the LCD power down timer which initial method
;		varies from chip to chip
;
;Input	  :	DS = DGROUP
;		ES = PM_RAM
;
;Output   :	None
;
;Note	  :	1. Call from POST 79S (PM initialization)
;		2. Stack available
;		3. Don't destroy any SEGMENT registers!
;[]========================================================================[]
		ASSUME	ES:PM_RAM
		ASSUME	DS:DGROUP
		Public	Ct_LCD_Init
Ct_LCD_Init	Proc	Near
		ret
Ct_LCD_Init	Endp

;[]========================================================================[]
;Procedure:	HDD_Standby_Offset
;
;Function :	Tell BIOS kernal the offset of the setup item
;		"HDD Power Down Timer"
;
;Input	  :	DS = DGROUP
;		ES = PM_RAM
;
;Output   :	NC: HDD Power Down Item exist
;		    SI = Item offset
;		CF: HDD Power Down Item absent
;		    SI Don't care
;
;Note	  :	1. Call from POST 79S (PM initialization)
;		2. Stack available
;		3. Don't destroy any SEGMENT registers!
;		4. If you don't have such a item in SETUP,
;		   just set carry flag & return!
;[]========================================================================[]
		ASSUME	ES:PM_RAM
		ASSUME	DS:DGROUP
		Public	HDD_Standby_Offset
HDD_Standby_Offset	Proc	Near

		extrn	HDD_Timer_Item:Near
		mov	si,offset HDD_Timer_Item

		clc
		ret

HDD_Standby_Offset	Endp
;[]========================================================================[]
;Procedure:	Get_IRQ15_Offset
;
;Input	  :	DS = G_RAM
;
;Output   :	NC:
;			AX = Segment location of the IRQ15
;			     PMI service routine
;			SI = offset of the IRQ15 PMI service routine
;
;			i.e. AX:SI
;
;		CF:
;			IRQ 15 is not supported!
;
;Registers:	Please preserve all registers except AX & SI
;
;[Note]   :	1. called from PM_INIT
;		   NC: AX:SI will be placed interrupt table located
;		       in segment 0
;		   CF: IRQ15 vector will be masked off
;[]========================================================================[]
			ASSUME	DS:G_RAM
			Public	Get_IRQ15_Offset
Get_IRQ15_Offset	Proc	Near
			stc
			ret
Get_IRQ15_Offset	Endp

;[]========================================================================[]
;Procedure:	Ct_Resume_Handle
;
;Function :	Ct_Resume_Handle
;
;Input	  :	None
;
;Output   :	None
;[]========================================================================[]
		Public	Ct_Resume_Handle
Ct_Resume_Handle	Proc	Near
		mov	ax,G_RAM
		mov	ds,ax
		ASSUME	DS:G_RAM
		mov	ss,G_RAM:[ROM_MODULE_SEG]
		mov	sp,G_RAM:[ROM_MODULE_OFFSET]
		iret
Ct_Resume_Handle	Endp

;[]-------------------------------------------------------------------[]
;
; PPPPPPPP	 AA	  RRRRRRRR   TTTTTTTTTTT	       33333
; PPPPPPPPP	AAAA	  RRRRRRRRR  TTTTTTTTTTT    ***       333 333
; PPP	 PPP   AAAAAA	  RRR	 RRR	 TTT	    *** 	  333
; PPPPPPPPP   AAA  AAA	  RRRRRRRRR	 TTT			33333
; PPPPPPPP   AAAAAAAAAA   RRRRRRRR	 TTT	    *** 	  333
; PPP	    AAAAAAAAAAAA  RRR	RRR	 TTT	    ***       333 333
; PPP	   AAA	      AAA RRR	 RRR	 TTT		       33333
;
;	   Hooks to the real mode APM functions
;
;[]-------------------------------------------------------------------[]

;[]-------------------------------------------------------------------[]
;
; PPPPPPPP	 AA	  RRRRRRRR   TTTTTTTTTTT		44444
; PPPPPPPPP	AAAA	  RRRRRRRRR  TTTTTTTTTTT    ***        444444
; PPP	 PPP   AAAAAA	  RRR	 RRR	 TTT	    ***       444 444
; PPPPPPPPP   AAA  AAA	  RRRRRRRRR	 TTT		     4444444444
; PPPPPPPP   AAAAAAAAAA   RRRRRRRR	 TTT	    ***     44444444444
; PPP	    AAAAAAAAAAAA  RRR	RRR	 TTT	    *** 	  444
; PPP	   AAA	      AAA RRR	 RRR	 TTT			  444
;
;
;
;	   OEM specific subroutines
;
;	   Normally, this part will be placed with the PMI handler
;	   (IRQ15 or SMI or NMI)
;
;[]-------------------------------------------------------------------[]

;[]========================================================================[]
;Function :	Routine to handle the power management interrupt (PMI).
;
;Input    :	None
;
;Output   :	if PM using IRQ --- no output!
;		if PM using NMI --- NC: BIOS has handle this NMI for
;					PM chip!
;				    CF: NMI is not issue by PM chip
;
;Destroy:	if PM using IRQ --- destroy None
;		if PM using NMI --- destroy FLAG
;[]========================================================================[]

		Public	APM_R31_Added
APM_R31_Added:

;[]========================================================================[]
;Procedure:	Get_PMI_Source
;
;Function :	To get the corresponding PMI routine according
;		to what kind of PMI it is
;
;Input    :	DS = PM_RAM
;
;Output   :	SI = point to appropriate PMI handler
;		e.g. if it is a suspend request
;		     SI = offset Suspend_Handler
;
;Note	  :	1. Called from PM_Handler
;		2. stack available
;		3. The BIOS PM kernal will issue:
;		   "call si" after calling this routine!
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source 0Fh (reg. 35h bit 4-0)
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle EXT SMI1 source
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source
;
;[]========================================================================[]

;[]========================================================================[]
;
;Function :	Service routine to handle PMI source
;
;[]========================================================================[]


		ASSUME	DS:PM_RAM
ifndef	CRT_Control_Not_In_F000
F000_Enable_CRT	Proc	Far
		call	Enable_CRT
		retf
F000_Enable_CRT	Endp

F000_Disable_CRT Proc	Far
		call	Disable_CRT
		retf
F000_Disable_CRT Endp
endif	;CRT_Control_Not_In_F000

ifndef	V_ALARM_IN_E000
F000_Virtual_Resume_Timer Proc	Far
		call	Virtual_Resume_Timer
		retf
F000_Virtual_Resume_Timer Endp

;-----------------------------------------------------------
;Function :	1. reg.30h bit 1,0 --> 00b (Full-On Mode)
;		2. set PM_RAM:[PM_MODE]=FULL_ON
;		3. Enable CRT display
;		4. set CPU to its full speed
;
;Input	  :	DS = PM_RAM
;
;Output	  :	None
;-----------------------------------------------------------

;[]========================================================================[]
;input	:	DS = PM_RAM
;[]========================================================================[]


		include	v_alarm.inc

Low_Power_Throttling	Proc	Near
		ret
Low_Power_Throttling	Endp
endif	;V_ALARM_IN_E000

		ALIGN	4