gapm10.inc

AMI 主板的BIOS源码

;-----------------------------------------------;

apm_connect_common_02:
	mov	ah,real_mode_connect_present	; real mode interface connection already established
	jmp	short apm_connect_common_exit	;

apm_connect_common_04:
	mov	ah,prot_mode_16bit_connect_present; 16 bit protected mode interface already established
	jmp	short apm_connect_common_exit	;

apm_connect_common_05:
	mov	ah,prot_mode_32bit_connect_present; 32 bit protected mode interface already established

apm_connect_common_exit:
	jmp	apm_error_exit			;

apm_connect_common	endp

;---------------------------------------------------------------;
;			CHECK_REAL_MODE_CALL			;
;---------------------------------------------------------------;
;	Input :	(DS) PM bios data segment			;
;		(BX) device ID					;
;		(AL) APM_CONNECTION_INFO			;
;	Output:	(CY) 00 for no error				;
;		(CY) 01 for error...invalid function		;
;				 ...unrecognized device ID	;
;	Register destroyed : (AH) for error			;
;---------------------------------------------------------------;

check_real_mode_call	proc	near

	test	byte ptr [ebp+off_bp_apm],00000001b; called in real mode ?
	jz	short check_real_mode_call_00	; no...invalid function
	cmp	bx,system_bios_device_id	; power device ID for APM BIOS ?
	jnz	short check_real_mode_call_01	; no...error
	ret

;-----------------------------------------------;

check_real_mode_call_00::
	mov	ah,unsupported_func		; function not supported
	jmp	apm_error_exit			;

check_real_mode_call_01:
int_15_ah53_al04_01::
	jmp	apm_err_code_09			; unrecognized device ID

check_real_mode_call	endp

;---------------------------------------------------------------;
;	      FN# 04H ... APM INTERFACE DISCONNECT		;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al04	proc	near

	test	al,(apm_real_mode_connect_est or apm_16bit_mode_connect_est or apm_32bit_mode_connect_est); is proper APM connection done ?
	jz	short int_15_ah53_al04_00	; no...
	cmp	bx,system_bios_device_id	; power device ID for APM BIOS ?
	jnz	short int_15_ah53_al04_01	; no...error
	and	al,not (apm_real_mode_connect_est or apm_16bit_mode_connect_est or apm_32bit_mode_connect_est); set APM is disconnected
	mov	ds:apm_connection_info,al	; set APM_CONNECTION_INFO
	call	set_rom_apm_connection_info	; set ROM_APM_CONNECTION_INFO

	mov	al,process_apm_disconnect	;
	call	css_entry_std			; call chipset specific module

	clc					; (CY) = 00 for no error
	ret

;-----------------------------------------------;

int_15_ah53_al04_00:
check_apm_connection_00::
	mov	ah,interface_not_connected	; APM driver interface not connected
	jmp	apm_error_exit			;

int_15_ah53_al04	endp

;---------------------------------------------------------------;
;			CHECK_APM_CONNECTION			;
;---------------------------------------------------------------;
;	Input :	(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output:	(CY) 00 for no error				;
;		(CY) 01 for error...APM not connected		;
;	Register destroyed : (AH) for error			;
;---------------------------------------------------------------;

check_apm_connection	proc	near

	test	al,[ebp+off_bp_apm]		; is proper APM connection done ?
	jz	short check_apm_connection_00	; no...(cy) = 00 for no error
	ret

check_apm_connection	endp

;---------------------------------------------------------------;
;		     FN# 05H ... CPU IDLE			;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al05	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al05_00	; no...

	mov	al,set_pre_cpu_idle_environment	; setup before going for cpu slow/stop clock
	call	css_entry_std			;

	mov	al,apm_cpu_idle_call		; set stop clock/slow clock
	call	css_entry_std			;

	mov	al,set_post_cpu_idle_environment; setup after coming out of stop clock
	call	css_entry_std			;
	clc					; set (CY) = 00 for no error

int_15_ah53_al05_00:
	ret

int_15_ah53_al05	endp

;---------------------------------------------------------------;
;		    FN# 06H ... APM CPU BUSY			;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al06	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al06_00	; no...

	mov	al,apm_cpu_busy_call		; set to full processor clock speed
	call	css_entry_std			;
	clc					; set (CY) = 00 for no error
int_15_ah53_al06_00:
	ret

int_15_ah53_al06	endp

;---------------------------------------------------------------;
;		   FN# 07H ... SET POWER STATE			;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al07	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al07_00	; no...

	test	al,apm_bios_power_management_disabled; APM BIOS power management disabled ?
	jnz	short int_15_ah53_al07_01	; yes...

	cmp	bh,serial_port_device_id	; valid device ID ?
	ja	short int_15_ah53_al07_03	; no...

	mov	dl,not apm_on_state		; clear APM state

	cmp	cx,apm_suspend			; set APM suspend state ?
	jz	short int_15_ah53_al07_02	; yes...

	mov	dh,apm_standby_state		;
	mov	al,off_set_apm_standby_fn	; set APM standby state
	cmp	cx,apm_standby			; set APM standby state ?
	jz	short int_15_ah53_al07_08	; yes...

	mov	dh,apm_enabled_state		;
	mov	al,off_set_apm_enabled_fn	; set APM enabled state
	cmp	cx,apm_enabled			; set APM enabled state ?
	jz	short int_15_ah53_al07_04	; yes...

	mov	dh,apm_off_state		; 
	mov	al,off_set_apm_off_fn		; set APM off state
	cmp	cx,apm_off			; set APM off state ?
	jnz	short int_15_ah53_al07_05	; no...error

int_15_ah53_al07_04:
	cmp	bx,all_power_managed_device_id	; all devices power managed by APM BIOS ?
	jz	short int_15_ah53_al07_10	; yes...unable to enter requested state
	jmp	short int_15_ah53_al07_08	;

int_15_ah53_al07_02:

;-----------------------------------------------;
;	AS FOR SYSTEM SUSPEND CALL, WHILE	;
;	IT RETURNS TO CALLER, THE SYSTEM	;
;	SHOULD RESUME FROM SUSPEND, SO		;
;	THE SYSTEM STATE SHOULD BE PLACED	;
;	     IN 'apm_enabled' STATE		;
;-----------------------------------------------;

	mov	dh,apm_enabled_state		;
	mov	al,off_set_apm_suspend_fn	; set APM suspend state

	cmp	bh,system_device_id		; is request for system ?
	jz	short int_15_ah53_al07_08	; yes...
	mov	dh,apm_suspend_state		;

int_15_ah53_al07_08:
	jmp	exec_apm_common			; execute the function

int_15_ah53_al07_00:
int_15_ah53_al08_00::
	ret

;-----------------------------------------------;

int_15_ah53_al07_03:
	jmp	apm_err_code_09			; unrecognized device ID

int_15_ah53_al07_01:
	jmp	apm_err_code_01			; power management functionality disabled

int_15_ah53_al07_10:
	mov	ah,unable_to_enter_req_state	; unable to enter requested state
	jmp	short int_15_ah53_al07_50	;

int_15_ah53_al07_05:
int_15_ah53_al08_05::
	mov	ah,parameter_out_of_range	; parameter value out of range

int_15_ah53_al07_50:
	jmp	apm_error_exit			;

int_15_ah53_al07	endp

;---------------------------------------------------------------;
;	   FN# 08H ... ENABLE/DISABLE POWER MANAGEMENT		;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al08	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al08_00	; no...
	test	al,apm_bios_power_management_disabled; APM BIOS power management disabled ?
	jnz	short int_15_ah53_al08_01	; yes...

	cmp	bx,all_pm_device_id_v10		; all power managed device ID for v1.0 ?
	jnz	short int_15_ah53_al08_03	; no...invalid device ID
	mov	bx,all_power_managed_device_id	; convert it to v1.1 ID

	mov	dl,not pm_enabled_by_apm	; clear pm enabled by APM bit

	mov	dh,pm_enabled_by_apm		; set pm enabled by APM bit
	mov	al,off_enable_dev_pm_fn		; execute enable power management
	cmp	cx,enable_power_management	; enable power management ?
	jz	short int_15_ah53_al08_08	; yes...
	cmp	cx,disable_power_management	; disable power management ?
	jnz	short int_15_ah53_al08_05	; no...error

;-----------------------------------------------;
;	FOLLOWING CODE IN BLOCK IS ADDED TO	;
;	     PASS INTEL APM TEST SUITE		;
;-----------------------------------------------;

	test	byte ptr ds:apm_state,pm_enabled_by_apm	; power management enabled by APM ?
	jz	short int_15_ah53_al08_01	; no...

;-----------------------------------------------;

	mov	dh,00000000b			; disable power management
	mov	al,off_disable_dev_pm_fn	; execute disable power management

int_15_ah53_al08_08:
	jmp	short exec_apm_common		; execute the function

;-----------------------------------------------;

int_15_ah53_al08_03:
int_15_ah53_al09_03::
int_15_ah53_al0a_03::
	jmp	short apm_err_code_09		; unrecognized device ID

int_15_ah53_al08_01:
	jmp	short apm_err_code_01		; power management functionality disabled

int_15_ah53_al08	endp

;---------------------------------------------------------------;
;	      FN# 09H ... RESTORE POWER ON DEFAULTS		;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al09	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al09_00	; no...

	cmp	bx,all_pm_device_id_v10		; all power managed device ID for v1.0 ?
	jnz	short int_15_ah53_al09_03	; no...invalid device ID

	mov	al,set_power_on_defaults	; set power on defaults for power management
	call	css_entry_std			; execute in chipset specific module

	call	set_dev_state			; set device states to power on default
	mov	al,ds:apm_state			;
	call	set_rom_apm_state		; update ROM_APM_STATE
	clc					; set (cy) = 00 for no error
int_15_ah53_al09_00:
	ret

int_15_ah53_al09	endp

;---------------------------------------------------------------;
;		  FN# 0AH ... GET POWER STATUS			;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al0a	proc	near

	cmp	bx,all_power_managed_device_id	; valid device ID ?
	jnz	short int_15_ah53_al0a_03	; no...
	call	get_ac_battery_status		; CHIPSET HOOK HOOK HOOK...returns AC line status & battery status in (bx),(cx) & (dx)
	cmp	bh,02h				; AC line status is 'On backup power' ?
	jnz	short int_15_ah53_al0a_00	; no...
	mov	bh,00h				; set AC line status as 'Off-line'

int_15_ah53_al0a_00:
	mov	[ebp+off_bx_apm],bx		; return (bx)
	mov	[ebp+off_cl_apm],cl		; return (cl)
	clc					; (CY) = 00 for no error
	ret

int_15_ah53_al0a	endp

;---------------------------------------------------------------;
;		    FN# 0BH ... GET PM EVENT			;
;---------------------------------------------------------------;
;	Input : As specified in function			;
;		(DS) PM bios data segment			;
;		(AL) APM_CONNECTION_INFO			;
;	Output: (CY) 00 for no error				;
;		(CY) 01 for error				;
;		Required returned registers are updated in stack;
;	Register destroyed : ALL GENERAL PURPOSE except (EBP)	;
;---------------------------------------------------------------;

int_15_ah53_al0b	proc	near

	call	check_apm_connection		; is proper APM connection done ?
	jc	short int_15_ah53_al0b_00	; no...