npostdim.asm

<BIOS研发技术剖析>书的源代码,包括完整的BIOS汇编语言源程序.

        page    ,132
        title .                         Device Initializer Hooks
;*****************************************************************;
;*****************************************************************;
;**                                                             **;
;**      (C)Copyright 1985-1996, American Megatrends, Inc.      **;
;**                                                             **;
;**                     All Rights Reserved.                    **;
;**                                                             **;
;**           6145-F Northbelt Pkwy, Norcross, GA 30071         **;
;**                                                             **;
;**                     Phone [phone]                    **;
;**                                                             **;
;*****************************************************************;
;*****************************************************************;

;---------------------------------------;
        include dim.equ
        include devnode.equ
        include rt.equ
        include escd.equ
        include pci.equ
        include pnp.equ
        include makeflag.equ
        include setupequ.ext
	include sis530.equ
;---------------------------------------;

        public dih_sys_func_0
        public dih_sys_func_1
        public dih_sys_func_2
        public dih_sys_func_3
        public dih_sys_func_4
        public dih_sys_func_5
        public dih_sys_mem_shadowable
        public dih_sys_config_done

ifdef ISA
        public dih_isa_func_0
        public dih_isa_func_1
        public dih_isa_func_2
        public dih_isa_func_3
        public dih_isa_func_4
        public dih_isa_func_5
        public dih_isa_reserve_irq_mem
endif

ifdef EISA
        public  dih_eisa_handle_cfg_mem
        public  program_cachability_sram
        public  program_cachability_sram_final
endif

ifdef PNP
        public dih_pnp_func_0
        public dih_pnp_func_1
        public dih_pnp_func_2
        public dih_pnp_func_3
        public dih_pnp_func_4
endif

ifdef PCI
        public dih_pci_func_0
        public dih_pci_check_ide
        public dih_pci_func_1
        public dih_pci_func_2
        public dih_pci_func_3
        public dih_pci_func_4
        public dih_pci_func_5
        public dih_pci_get_info
        public dih_pci_prot_dev
        public dih_pci_ignore_escd_irq
        extrn  dih_pci_prot_dev_table:byte
        extrn  dih_pci_prot_dev_table_end:byte
endif


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

;---------------------------------------;
; dih_scratch_data                      ;
;---------------------------------------;--------------------------------------;
; This is a 128 byte scratch data area which can be used by any of the hook    ;
; functions in this file.  This scratch area is in the _dimdata segment which  ;
; is an input (DS, ES) to all of the functions in this file.                   ;
;                                                                              ;
; NOTE: Do not assume that this scratch area is initialized or zeroed out.     ;
;       You must initialize this scratch area according your needs.  A good    ;
;       place to do any initialization is in dih_sys_func_0 since it is the    ;
;       first hook to be called.                                               ;
;       This data area is not used by any of the core routines.                ;
;                                                                              ;
;------------------------------------------------------------------------------;

        extrn dih_scratch_data: byte
        extrn dih_manual_ide_id: byte

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

        extrn SysStatus: dword
        extrn IsaStatus: dword
        extrn EisaStatus: dword
        extrn PnPStatus: dword
        extrn PciStatus: dword

        extrn OwnerWork: byte

        extrn FindDevID: dword
        extrn FindDevSerial: dword
        extrn FindDevLogID: dword
        extrn FindDevType: dword
        extrn FindDevTypeMask: dword
        extrn FindDevInitAll: byte
        extrn FindDevInitAllBoot: byte

        extrn PnPFoundDevCSN: byte
        extrn PnPFoundDevID: dword
        extrn PnPFoundDevSer: dword
        extrn PnPFoundDevLID: dword

        extrn FindDevIncDev: byte
        extrn FindDevIncBus: byte
        extrn PCICommandValue: word
        extrn PCIFoundDevID: dword
        extrn PCIFoundDevFunc: dword
        extrn PCIFoundDevBus: dword

        extrn EscdFuncNum: byte
        extrn EscdSlotNum: byte

        extrn PCIROMMinBase: dword
        extrn PCIROMMaxBase: dword
        extrn MaxPCIBusNumber:byte

        extrn ResMapStart: word
        extrn ResMapEnd:   word

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

cgroup  group   _text
_text   segment byte public 'CODE'
        assume  cs:cgroup
.386


;---------------------------------------;
; Protected IO Ports for Legacy Devices ;
;---------------------------------------;

        public dih_sys_legacy_port_table_start
        public dih_sys_legacy_port_table_end

dih_sys_legacy_port_table_start:

LegacyPort < 170h, 8 >                  ;170 - 17F: Secondary HDC
LegacyPort < 1F0h, 8 >                  ;1F0 - 1FF: Primary HDC
LegacyPort < 200h, 8 >                  ;200 - 207: Game port
LegacyPort < 250h, 2 >                  ;250 - 251: Bestlink suggestion
LegacyPort < 278h, 4 >                  ;278 - 27B: Parallel port
LegacyPort < 2E8h, 8 >                  ;2E8 - 2EF: Serial port
LegacyPort < 2F8h, 8 >                  ;2F8 - 2FF: Serial port
LegacyPort < 370h, 8 >                  ;370 - 377: Secondary FDC
LegacyPort < 378h, 4 >                  ;378 - 37B: Parallel port
LegacyPort < 3B0h, 12>                  ;3B0 - 3BC: Monochrome adapter
LegacyPort < 3BCh, 4 >                  ;3BC - 3BF: Parallel port
LegacyPort < 3C0h, 32>                  ;3C0 - 3DF: Various CGA/EGA/VGA
LegacyPort < 3E8h, 8 >                  ;3E8 - 3EF: Serial port
LegacyPort < 3F8h, 8 >                  ;3F8 - 3FF: Serial port

;Remove these comments to protect the EISA ID ports
if      MKF_INC_EISA
LegacyPort < 00C80h, 4 >                ;EISA ID Ports - Slot 0
LegacyPort < 01C80h, 4 >                ;EISA ID Ports - Slot 1
LegacyPort < 02C80h, 4 >                ;EISA ID Ports - Slot 2
LegacyPort < 03C80h, 4 >                ;EISA ID Ports - Slot 3
LegacyPort < 04C80h, 4 >                ;EISA ID Ports - Slot 4
LegacyPort < 05C80h, 4 >                ;EISA ID Ports - Slot 5
LegacyPort < 06C80h, 4 >                ;EISA ID Ports - Slot 6
LegacyPort < 07C80h, 4 >                ;EISA ID Ports - Slot 7
LegacyPort < 08C80h, 4 >                ;EISA ID Ports - Slot 8
LegacyPort < 09C80h, 4 >                ;EISA ID Ports - Slot 9
LegacyPort < 0AC80h, 4 >                ;EISA ID Ports - Slot A
LegacyPort < 0BC80h, 4 >                ;EISA ID Ports - Slot B
LegacyPort < 0CC80h, 4 >                ;EISA ID Ports - Slot C
LegacyPort < 0DC80h, 4 >                ;EISA ID Ports - Slot D
LegacyPort < 0EC80h, 4 >                ;EISA ID Ports - Slot E
LegacyPort < 0FC80h, 4 >                ;EISA ID Ports - Slot F
endif

dih_sys_legacy_port_table_end:
;==============================================================================;
;                                                                              ;
;                   System Board Device Initializer Hooks                      ;
;                                                                              ;
;==============================================================================;

;---------------------------------------;
; dih_sys_func_0 (Reset,Detect,Disable) ;
;---------------------------------------;--------------------------------------;
; This function is called by the System Board Device Initializer (DI-SYS.ASM)  ;
; during function 0 (Reset, Detect, and Disable).  The following things should ;
; be done here if needed:                                                      ;
;                                                                              ;
; - Reset and disable any on board devices such as serial ports, parallel      ;
;   ports, HDD / FDD controllers, etc. that are not disabled by the peripheral ;
;   code.                                                                      ;
;                                                                              ;
; Input: SI = Offset of the NVRam workspace (in _dimdata seg)                  ;
;        DS = ES = _dimdata Segment                                            ;
;                                                                              ;
; Output: CF = Set if error, cleared otherwise                                 ;
;                                                                              ;
; Preserves: DS, ES, BP (all other registers are destroyed)                    ;
;------------------------------------------------------------------------------;
dih_sys_func_0  proc near
        clc
        ret
dih_sys_func_0  endp


;---------------------------------------;
; dih_sys_func_1 (Static Device Init)   ;
;---------------------------------------;--------------------------------------;
; This function is called by the System Board Device Initializer (DI-SYS.ASM)  ;
; during function 1 (Static Device Init).  The following steps should be done  ;
; here:                                                                        ;
;                                                                              ;
; - Allocate a block of memory just below the very top of address space (4GB). ;
;   The block should have a size large enough to protect the any BIOS image    ;
;   or other memory that is visible there from being allocated by the resource ;
;   manager.  This memory region will be "off limits" for any device to use.   ;
;                                                                              ;
; Input: SI = Offset of the NVRam workspace (in _dimdata seg)                  ;
;        DS = ES = _dimdata Segment                                            ;
;                                                                              ;
; Output: CF = Set if error, cleared otherwise                                 ;
;                                                                              ;
; Preserves: DS, ES, BP (all other registers are destroyed)                    ;
;------------------------------------------------------------------------------;
dih_sys_func_1  proc near
        mov     di, offset OwnerWork    ;Use this global as workspace
        mov     (owner_sys ptr [di]).own_sys_sig, OWNTYPE_SYS
        mov     (owner_sys ptr [di]).own_sys_nodenum, 0FFh
        mov     (owner_sys ptr [di]).own_sys_rsvd, 0
        mov     (owner_sys ptr [di]).own_sys_devid, 0FFFFFFFFh
        mov     dword ptr (owner_sys ptr [di]).own_sys_rsvd2, 0
 ; Reserve the memory spaces at F0000000/FFFFFFFF
        mov     ebx, 0f0000000h         ;Min and Max base addresses are
        mov     ecx, ebx
	mov	edx, 0fffffffh
        mov     esi, 1                  ;Alignment is byte
        xor     al, al                  ;All flags are 0
        mov     ah, RM_ALLOC_MEM
        CALL_RESMGR                     ;Call Resource Manager to allocate
        clc
        ret
dih_sys_func_1  endp


;---------------------------------------;
; dih_sys_func_2 (Output Device Init)   ;
;---------------------------------------;--------------------------------------;