page ,132 title dummy I/O module ;*****************************************************************; ;*****************************************************************; ;** **; ;** (C)Copyright 1985-1996, American Megatrends, Inc. **; ;** **; ;** All Rights Reserved. **; ;** **; ;** 6145-F Northbelt Pkwy, Norcross, GA 30071 **; ;** **; ;** Phone (770)-246-8600 **; ;** **; ;*****************************************************************; ;*****************************************************************; ;*****************************************************************; ;---------------------------------------; include dim.equ include devnode.equ include rt.equ include pci.equ include io.equ include escd.equ include mbiosmac.mac include sis530.equ include makeflag.equ ;---------------------------------------; public SiS5513IdeController ;---------------------------------------; extrn get_cmos_item:near extrn set_cmos_item_checksum:near extrn cpu_freq:word extrn read_pci_byte:near extrn Q_SIS5513_IDE_CONTROLLER:abs extrn Q_SIS5513_PREFETCH_PM:abs extrn Q_SIS5513_PREFETCH_PS:abs extrn Q_SIS5513_PREFETCH_SM:abs extrn Q_SIS5513_PREFETCH_SS:abs extrn ide_prim_base_addr:word extrn ide_sec_base_addr:word extrn get_processor_info:near extrn read_ide_word:near ;---------------------------------------; ;---------------------------------------; ; C O D E S E G M E N T ; ;---------------------------------------; cgroup group _text _text segment word public USE16 'CODE' assume cs:CGROUP .486p ;---------------------------------------; ; Peripheral Table Structure ; ;---------------------------------------;-------------------------------------; ; This table should be the only public label defined in this file. It ; ; contains pointers to the peripheral module's data and functions. ; ;-----------------------------------------------------------------------------; SiS5513IdeController label word dw PTFLAG_INVISIBLE_NODE ;Flags (Node is invisible after boot) dw DevNodeData ;Pointer to device node data dw GetNodeStatic ;Pointer to GetNodeStatic routine dw GetNodeDynamic ;Pointer to GetNodeDynamic routine dw SetNodeStatic ;Pointer to SetNodeStatic routine dw SetNodeDynamic ;Pointer to SetNodeDynamic routine dw RegisterInit ;Pointer to RegisterInit routine dw GetAutoStatus ;Pointer to GetAutoStatus routine dw IdeSetMode ;Pointer to IdeSetMode routine dw AdjustSetup ;Pointer to AdjustSetup routine dw IsrInstall ;Pointer to IsrInstall routine dw InitHotKey ;Pointer to InitHotKey routine dw InitBufferPrfOptimal ;Pointer to InitBufferPrfOptimal routine dw InitBufferPrfFailSafe ;Pointer to InitBufferPrfFailSafe routine dw DummyRet ;Dummy Routine for 3Mode Floppy ;---------------------------------------; ; Device Node Data ; ;---------------------------------------;-------------------------------------; ; This block of data forms the device node that describes the configuration ; ; options available to this peripheral device. ; ;-----------------------------------------------------------------------------; DevNodeData label byte ; Size Node Number Device ID Fill w/ Dev/Func # Fill w/ Bus # IF Type Attributes ; ----- ----------- -------------- ------------------ -------------- ------------------ ---------------------------------------------- sd_node < NODELEN, 0, 55131039h, 0, 0, IF_DUAL_PCI_BM_IDE, SDN_ATTR_DYNAMIC_CFG > fport_descriptor < FPORT_DESC_TAG, 000h, 0 > fport_descriptor < FPORT_DESC_TAG, 000h, 0 > irq_descriptor < IRQ_DESC_TAG, 0000000000000000b > fport_descriptor < FPORT_DESC_TAG, 000h, 0 > fport_descriptor < FPORT_DESC_TAG, 000h, 0 > irq_descriptor < IRQ_DESC_TAG, 0000000000000000b > port_descriptor < PORT_DESC_TAG, PD_FLAG_DECODE_16, 100h, 0FFF0h, 10h, 10h > ;10h ports anywhere between 100h and FFF0h END_OF_ALLOCATED_RESOURCES DEPENDENT_FUNCTION_START fport_descriptor < FPORT_DESC_TAG, 1F0h, 8 > ;Port 1F0 - 1F7 fport_descriptor < FPORT_DESC_TAG, 3F6h, 1 > ;Port 3F6 irq_descriptor < IRQ_DESC_TAG, 0100000000000000b > ;IRQ 14 fport_descriptor < FPORT_DESC_TAG, 000h, 0 > ;Port placeholder fport_descriptor < FPORT_DESC_TAG, 000h, 0 > ;Port placeholder irq_descriptor < IRQ_DESC_TAG, 0000000000000000b > ;IRQ placeholder port_descriptor < PORT_DESC_TAG, PD_FLAG_DECODE_16, 100h, 0FFF0h, 10h, 10h > ;10h ports anywhere between 100h and FFF0h DEPENDENT_FUNCTION_START fport_descriptor < FPORT_DESC_TAG, 000h, 0 > ;Port placeholder fport_descriptor < FPORT_DESC_TAG, 000h, 0 > ;Port placeholder irq_descriptor < IRQ_DESC_TAG, 0000000000000000b > ;IRQ placeholder fport_descriptor < FPORT_DESC_TAG, 170h, 8 > ;Port 170 - 177 fport_descriptor < FPORT_DESC_TAG, 376h, 1 > ;Port 376 irq_descriptor < IRQ_DESC_TAG, 1000000000000000b > ;IRQ 15 port_descriptor < PORT_DESC_TAG, PD_FLAG_DECODE_16, 100h, 0FFF0h, 10h, 10h > ;10h ports anywhere between 100h and FFF0h DEPENDENT_FUNCTION_START fport_descriptor < FPORT_DESC_TAG, 1F0h, 8 > ;Port 1F0 - 1F7 fport_descriptor < FPORT_DESC_TAG, 3F6h, 1 > ;Port 3F6 irq_descriptor < IRQ_DESC_TAG, 0100000000000000b > ;IRQ 14 fport_descriptor < FPORT_DESC_TAG, 170h, 8 > ;Port 170 - 177 fport_descriptor < FPORT_DESC_TAG, 376h, 1 > ;Port 376 irq_descriptor < IRQ_DESC_TAG, 1000000000000000b > ;IRQ 15 port_descriptor < PORT_DESC_TAG, PD_FLAG_DECODE_16, 100h, 0FFF0h, 10h, 10h > ;10h ports anywhere between 100h and FFF0h DEPENDENT_FUNCTION_END END_OF_ALTERNATE_RESOURCES END_OF_COMPATIBLE_DEV_IDS NODELEN = DevNodeDataEnd - DevNodeData DevNodeDataEnd label byte ; Format of ConfigTableEntry ;------------------------------------------------- ConfigTableEntry struc PriAddress1 dw ? PriSize1 db ? PriAddress2 dw ? PriSize2 db ? PriIrqMask dw ? SecAddress1 dw ? SecSize1 db ? SecAddress2 dw ? SecSize2 db ? SecIrqMask dw ? ConfigTableEntry ends ;---------------------------------------; ; DeviceConfigTable ; ;---------------------------------------;-------------------------------------; ; This table contains one entry for each possible device configuration ; ; setting. This table is only used by routines in this file. This table is ; ; used in two ways: ; ; ; ; 1. During GetNode calls the device's configuration is read from CMOS or ; ; hardware and the device node data must be updated with proper values. ; ; Because of this, each entry should contain enough information to fill in ; ; any fields in the device node that depend on the hardware's current ; ; settings. ; ; ; ; 2. During SetNode calls the caller passes in a device node structure and ; ; requests that the device's configuration be updated in CMOS or directly ; ; in hardware. In this case the variable fields in the device node data ; ; will be compared with each entry in the table. If a match is found ; ; the value to write to CMOS (or hardware register) should be able to be ; ; derived from the entry number in the table. For this reason, it is ; ; advantageous to put the table in the same order as CMOS setup values. ; ;-----------------------------------------------------------------------------; DeviceConfigTable: ; PriAddress1 PriSize1 PriAddress2 PriSize2 PriIrq SecAddress1 SecSize1 SecAddress2 SecSize2 SecIrq ; ----------- -------- ----------- -------- ------ ----------- -------- ----------- -------- ------ ConfigTableEntry < 0000h, 00h, 0000h, 00h, 0000h, 0000h, 00h, 0000h, 00h, 0000h > ;Disabled ConfigTableEntry < 01F0h, 08h, 03F6h, 01h, 4000h, 0000h, 00h, 0000h, 00h, 0000h > ;Primary ConfigTableEntry < 0000h, 00h, 0000h, 00h, 0000h, 0170h, 08h, 0376h, 01h, 8000h > ;Secondary ConfigTableEntry < 01F0h, 08h, 03F6h, 01h, 4000h, 0170h, 08h, 0376h, 01h, 8000h > ;Both DeviceConfigTableEnd: ;---------------------------------------; ; RegisterInitTable ; ;---------------------------------------;-------------------------------------; ; This table contains register numbers and values that when written to the ; ; device, initializes it but leaves it in a state that uses no resources. ; ; All functions on the device must be left disabled so that when a scan for ; ; off board devices is done, this device will not be detected. ; ;-----------------------------------------------------------------------------; BusDevFuncTable: db '$$CT' db 01h ;Chipset Init Table Version db 'SiS5513 IDE Dev#/Func#, Bus#', 0 ;ASCIIZ description string dw offset BusDevFuncTableEnd db 00h ;Reserved for chipset use db 'Dev#,Func#',0 db 'Bus#',0 BusDevFuncTableStart: BusDevFuncNumber label word ; Device # / ; Func # Bus # ; -------- -------- db S5513_DEV_FUNC_NUM,S5513_BUS_NUM ;Bus=0 Dev=0 Func=1 BusDevFuncTableEnd: RegisterTable: db '$$CT' db 01h ;Chipset Init Table Version db 'SiS5513 IDE Regs Init',0;ASCIIZ description string dw offset RegisterInitTableEnd db 00h ;Reserved for chipset use db 'Register',0 db 'Init Value',0 RegisterInitTableStart: ; Power ; Register On Value ; -------- -------- db 004h, 007h ; Disable IDE db 00dh, 080h ; latency timer db 020h, 000h ; Set Bus Master IDE base to 40000h db 021h, 000h db 022h, 000h db 023h, 000h db 02ch, 039h db 02dh, 010h db 02eh, 013h db 02fh, 055h db 040h, 000h ; Reg 40h db 041h, 000h ; Reg 41h db 042h, 000h ; Reg 42h db 043h, 000h ; Reg 43h db 044h, 000h ; Reg 44h db 045h, 000h ; Reg 45h db 046h, 000h ; Reg 46h db 047h, 000h ; Reg 47h db 048h, 003h ; Reg 47h db 04aH, 0e0h db 04bh, 000h db 04ch, 000h db 04dh, 000h db 04eh, 000h db 04fh, 000h db 050h, 000h ; db 051h, 002h ;; db 051h, 001h ; db 052h, 00Dh RegisterInitTableEnd: ;; db 000h, 000h ;Reg xxh, do not allow reg 59h ;power-on init value to be changed RegisterInitTableEndPgm label byte ;---------------------------------------; ; GetNodeStatic ; ;---------------------------------------;-------------------------------------; ; This function gets a device's configuration from CMOS. The caller has ; ; already copied the device node data into the caller's buffer (at DS:SI). ; ; This function should read the node's configuration from CMOS and update ; ; the variable fields in the node's current configuration section. This ; ; function is called during POST and runtime. ; ; ; ; Input: AL = Node number ; ; DS:SI = Pointer to the node ; ; Stack available ; ; ; ; Output: CF = Set if error getting node, clear if no error ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; GetNodeStatic proc near private push ax mov al, Q_SIS5513_IDE_CONTROLLER call get_cmos_item ;AL=0/1/2/3 for Disabled/Pri/Sec/Both call ConfigNumberToNodeData ;Move proper values into node data pop ax clc ret GetNodeStatic endp ;---------------------------------------; ; GetNodeDynamic ; ;---------------------------------------;-------------------------------------; ; This function gets a device's configuration directly from hardware. The ; ; caller has already copied the device node data into the caller's buffer ; ; (at DS:SI). This function should read hardware registers and update ; ; the variable fields in the node's current configuration section. This ; ; function is called during POST and runtime. ; ; ; ; Input: AL = Node number ; ; DS:SI = Pointer to the node ; ; Stack available ; ; ; ; Output: CF = Set if error getting node, clear if no error ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; GetNodeDynamic proc near private push ax push bx push cx push di call GetHardwareConfig ;AL = Entry # in DeviceConfigTable call ConfigNumberToNodeData ;Move proper values into node data ;-----< 03/04/96 Debug >----------------; or al, al jz GetNodeDymDone ;Br if both channels are disabled mov bx, word ptr cs:BusDevFuncNumber ;BX = IDE Bus/Dev/Func# mov di, 20h ;DI = IDE Register 20 (BA4) mov ah, RT_PCI_READ_CFG_WORD CALL_RT_FUNCTION ;CX = IDE Bus master reg base addr and cx, 0FFFCh ;Mask off reserved bits mov (DualBmIdeDevNodeData ptr [si]).BusPort.pdes_min_base, cx mov (DualBmIdeDevNodeData ptr [si]).BusPort.pdes_max_base, cx mov (DualBmIdeDevNodeData ptr [si]).BusPort.pdes_length, 10h ;---------------------------------------; GetNodeDymDone: pop di pop cx pop bx pop ax clc ret GetNodeDynamic endp ;---------------------------------------; ; SetNodeStatic ; ;---------------------------------------;-------------------------------------; ; This function sets a device's configuration in CMOS. This function is ; ; called only during runtime. ; ; ; ; Input: AL = Node number ; ; DS:SI = Pointer to the node ; ; Stack available ; ; ; ; Output: CF = Set if error setting node, clear if no error ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; SetNodeStatic proc near private push ax push dx call NodeDataToConfigNumber ;AL = Entry # in DeviceConfigTable jc SetNodeDone ;Br if invalid config was requested mov ah, al ;AH=0/1/2/3 for Disabled/Pri/Sec/Both mov al, Q_SIS5513_IDE_CONTROLLER call set_cmos_item_checksum clc SetNodeDone: pop dx pop ax ret SetNodeStatic endp ;---------------------------------------; ; SetNodeDynamic ; ;---------------------------------------;-------------------------------------; ; This function sets a device's configuration directly into hardware. This ; ; function is called during POST and runtime. ; ; ; ; Input: AL = Node number ; ; DS:SI = Pointer to the node data ; ; Stack available ; ; ; ; Output: CF = Set if error setting node, clear if no error ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; SetNodeDynamic proc near private push ax push bx push dx call NodeDataToConfigNumber ;AL = Entry # in DeviceConfigTable jc SetNodeDone ;Br if invalid config was requested call SetHardwareConfig ;Configure device to requested setting SetNodeDone: pop dx pop bx pop ax ret SetNodeDynamic endp ;---------------------------------------; ; RegisterInit ; ;---------------------------------------;-------------------------------------; ; This function initializes the peripheral chip's registers to power on ; ; defaults and prepares the chip for configuration. The device should be ; ; disabled so it is not detected as an off board device. ; ; ; ; Input: Nothing ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; RegisterInit proc near private pusha pushf ;Save CLI/STI state cli ; init register present in the BCP modifiable table mov si, offset cgroup:RegisterInitTableStart mov dx, (offset cgroup:RegisterInitTableEndPgm - offset cgroup:RegisterInitTableStart) / 2 reg_init_next: lods cgroup:word ptr [si] ;AL=reg. AH=power on value movzx di, al mov cl, ah mov bx, word ptr cs:BusDevFuncNumber mov ah, RT_PCI_WRITE_CFG_BYTE CALL_RT_FUNCTION ;Write CL to register DI dec dx jnz reg_init_next ;Br if more registers to be inited popf ;Restore CLI/STI state popa ret RegisterInit endp ;---------------------------------------; ; GetAutoStatus ; ;---------------------------------------;-------------------------------------; ; This function reports if a peripheral chip device is set to auto or manual ; ; in CMOS. ; ; ; ; Input: AL = Node number ; ; Stack available ; ; ; ; Output: AL = 0 If device is set to AUTO mode in CMOS ; ; 1 If device is set to MANUAL mode in CMOS ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; GetAutoStatus proc near private ; mov al, Q_SIS5513_IDE_CONTROLLER ; call get_cmos_item ;AL=0/1/2/3/4 for AUTO/Disabled/Pri/Sec/Both ; jz GetAutoDone ;Br if set to auto mov al, 1 ;Return manual value ;GetAutoDone: ret GetAutoStatus endp ;---------------------------------------; ; IdeSetMode ; ;---------------------------------------;-------------------------------------; ; This routine programs an peripheral IDE controller to operate a given PIO ; ; mode. This routine should examine the base address, and/or PCI bus/dev/func; ; number that is passed in and take action only if the call is for the device ; ; that this routine is controlling (return CF clear). If this call is not ; ; for this device, just return with carry set. ; ; ; ; Input: BL = PIO mode to program ; ; BH = 80h: If programming master drive ; ; 81h: If programming slave drive ; ; EBX = Bit31 0/1 -> ATA/ATAPI Device ; ; Bit30-16.....Reserved (set to 0) ; ; DI = Base I/O port address of controller to program (1F0h,170h,...) ; ; SI = PCI bus/device/function number of controller to program ; ; DX = Controller's bus master I/O port base address ; ; ECX = Bit31-24 Sync DMA information ; ; 00000000: Drive does not support DMA ; ; 01000nnn: Sync DMA mode, nnn = mode value ; ; Bit15-8 (CH) Non-Sync DMA information ; ; 00000000: Drive does not support DMA ; ; 00010nnn: Singleword DMA mode, nnn = mode value ; ; 00100nnn: Multiword DMA mode, nnn = mode value ; ; Bit7-0 (CL) IORDY information ; ; 00h: If drive does not support IORDY ; ; FFh: If drive supports IORDY ; ; CF = Set so dummy routines may just return ; ; ; ; Output: BL = PIO mode actually programmed ; ; CL = 00h: If host does not support IORDY ; ; FFh: If host supports IORDY ; ; CH = updated DMA information ; ; 00000000: If DMA should not be used ; ; 00010nnn: Singleword Non-Sync DMA mode, nnn = mode value ; ; 00100nnn: Multiword Non-Sync DMA mode, nnn = mode value ; ; 01000nnn: Sync DMA mode, nnn = mode value ; ; CF = Clear if call was for this device ; ; Set if call was not for this device ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; IdeSetMode proc near private push bp push di push esi push edx push eax ; check for VendorID and DeviceID for BusDevFuncNumber to be same as SiS5513.. ; check for PCI IDE enabled.. mov ah, 04h ; command byte call read_bcp_config_reg test al, 01h ; enabled ? jz SetModeNotForMe ;Br if not for this device ; check the base address.. mov al, 00h ;AL = 00 for primary master (PM) cmp di, cs:ide_prim_base_addr jz SetModePrimarySecondary ;Br if primary controller cmp di, cs:ide_sec_base_addr jnz SetModeNotForMe ;Br if not for this device mov al, 02h ;AL = 02 for secondary master (SM) SetModePrimarySecondary: cmp bl, 04h ;maxm PIO mode = 4 jbe SetGivenModeOk mov bl, 04h ;force PIO mode 4 SetGivenModeOk: push bx and bh, 01h add bh, al ;BH = 0/1/2/3 for PM/PS/SM/SS mov dl, bh ;DL = 0/1/2/3 for PM/PS/SM/SS pop bx ;BL = mode to be programmed call program_pio_timing_values call program_ultra_dma SetModeDone: clc mov cl, 0ffh ;CL = FF, Host supports IORDY SetModeDoneErr: pop eax pop edx pop esi pop di pop bp ret SetModeNotForMe: xor cx, cx ;CH = 00, no DMA, CL = 00, host does not support IORDY stc jmp short SetModeDoneErr IdeSetMode endp ;-------------------------------; ; PROGRAM_PIO_TIMING_VALUES ; CHIPSET SPECIFIC CODE ;-------------------------------;---------------------------------------; ; This routine must program the PIO mode paramters. ; ; input : ; ; BL = PIO mode to be programmed ; ; DL = 0 for Primary Master. ; ; 1 for Primary Slave. ; ; 2 for Secondary Master. ; ; 3 for Secondary Slave. ; ; ebx.31=cdrom or hard ; ecx=31...24 ; stack available ; ; output: ; ; None. PIO mode is programmed ; ; register usage -- No registers destroyed. ; ;-----------------------------------------------------------------------; ; For 33 Mhz PCI Clock - These values will also work for 25Mhz PCI Clock; ; -------------------- ; ; Mode Active Time Recovery Time ; ; ---- ----------- ------------- ; ; 4 3 PCICLK 1 PCICLK ; ; 3 3 PCICLK 3 PCICLK ; ; 2 6 PCICLK 8 PCICLK ; ; 1 6 PCICLK 10 PCICLK ; ; 0 8 PCICLK 12 PCICLK ; ; ; ; Table for Advanced PIO mode timing values for Onboard PCI IDE. ; ; Note : If this table is read as a word value, the Recovery Time will ; ; come in the high byte and the Active Time will come in the low byte. ; ;COMMENT % advanced_pio_mode_timing_table_66 label byte ; ;; Active Time Recovery Time Mode of Drive ; db 000b, 0000b ; Mode 0 ; db 110b, 0111b ; Mode 1 ; db 100b, 0100b ; Mode 2 ; db 011b, 0011b ; Mode 3 ; db 011b, 0001b ;0011b ; Mode 4 ; db 011b, 0001b ; Mode 5 ; ;;% ;;-------------------------------; ; ;; For above 33 Mhz PCI Clock. ; ;; -------------------------- ; ;; Currently, the PCI Bus Clock cannot be auto detected. Once this is ; ;; possible, the Timing values will have to be programmed automatically. ; ;; Currently the values are being programmed for 33Mhz. ; ;; Mode Active Time Recovery Time ; ;; ---- ----------- ------------- ; ;; 4 4 PCICLK 4 PCICLK ; ;; 3 4 PCICLK 4 PCICLK ; ;; 2 6 PCICLK 10 PCICLK ; ;; 1 8 PCICLK 12 PCICLK ; ;; 0 8 PCICLK 12 PCICLK ; ;; ; ;; Table for Advanced PIO mode timing values for Onboard PCI IDE. ; ;; Note : If this table is read as a word value, the Recovery Time will ; ;; come in the high byte and the Active Time will come in the low byte. ; ;;COMMENT % ;advanced_pio_mode_timing_table_75 label byte ;;; Active Time Recovery Time Mode of Drive ; ; db 000b, 0000b ; Mode 0 ; ; db 000b, 0000b ; Mode 1 ; ;; db 111b, 1011b ; Mode 2 ; ;; db 101b, 0101b ; Mode 3 ; ;; db 101b, 0101b ; Mode 4 ; ;; db 101b, 0101b ; Mode 5 Hogan debug ; db 110b, 1010b ; Mode 2 ; ; db 100b, 0100b ; Mode 3 ; ; db 100b, 0100b ; Mode 4 ; ; db 100b, 0100b ; Mode 5 Hogan debug ;;% ;-------------------------------; ; ; Table for Programming Recovery Time Control. ; ; Note : It is assumed that the Active Time Control Register is ; ; the register following the Recover Time Control Register. ; onboard_pci_ide_timing_registers label byte ; db 40h ; For Primary Master ; db 42h ; For Primary Slave ; db 44h ; For Secondary Master ; db 46h ; For Secondary Slave ; ;-----------------------------------------------------------------------; program_pio_timing_values : .386p ; SiS-551x BIOS - Chipset Bug in Revision A1. ; If this code is included, the Int-19 loader is unable to give control ; to the Operating System. This is happening with the IDE driver provided ; by SiS too. If the driver is loaded and Int-19 is issued, the System ; hangs. Therefore, currently a return has been put at the beginning. pusha push ebx ; Save Mode value. xor bh, bh shl bx, 1 ; Get mode * 2 ;;========== hogan add for differ PIO timing ; pushad ; call get_processor_info ; cmp bl,1 ; jne pio_66 ;not CYRIX ; mov ax,cgroup:cpu_freq ; cmp ax,85h ;<= 133MHZ ; jbe pio_66 ; popad ; mov bx, word ptr cs:advanced_pio_mode_timing_table_75[bx] ; jmp pio_assign ;pio_66: ; popad mov bx, word ptr cs:advanced_pio_mode_timing_table_66[bx] pio_assign: ;;==================================================================== ; bh = recovery time, bl = active time. movzx si, dl ; SI = Hard disk table index. mov ah, byte ptr cs:onboard_pci_ide_timing_registers[si] ; ah = reg# mov al, bh ; al = Recovery time. call write_bcp_config_reg inc ah mov al, bl ; al = Active time call write_bcp_config_reg pop ebx ; Restore Mode value = BX. ;; for A3 stepping push ax mov ah,08h ; chipset Revision call read_pci_byte xor ah,ah cmp al,02 pop ax ja short cdrom_a3_normal test ebx,80000000h ; CDROM jnz no_prefetch cdrom_a3_normal: ; test ecx,40000000h ; when sync DMA mode then no prefetch ; jnz no_prefetch movzx ax, dl ;Dl = 0/1/2/3 for PM/PS/SM/SS cmp dl,0 ;Dl = 0/1/2/3 for PM/PS/SM/SS jne @f mov al, Q_SIS5513_PREFETCH_PM call get_cmos_item jmp get_channel @@: cmp dl,1 jne @f mov al, Q_SIS5513_PREFETCH_PS call get_cmos_item jmp get_channel @@: cmp dl,2 jne @f mov al, Q_SIS5513_PREFETCH_SM call get_cmos_item jmp get_channel @@: cmp dl,3 jne @f mov al, Q_SIS5513_PREFETCH_SS call get_cmos_item @@: get_channel: jz @f ; mov cl,al mov cl,dl ;; disable prefetch/postwrite if A3 stepping ; mov ah, 011h ; enable prefetch / postwrite mov ah,08h ; chipset Revision call read_pci_byte xor ah,ah cmp al,02 ja short stepping_a3 enable_postwrite: mov ah, 011h ; eable prefetch / postwrite stepping_a3: shl ah,cl mov cl,ah mov ah,04bh call read_bcp_config_reg or al, cl call write_bcp_config_reg @@: ; for A3 stepping jmp program_channel_done ;; for A3 stepping no_prefetch: cmp dl,2 ; dl = 0/1/2/3 PM/PS/SM/SS jnc secondry_channel ; jmp if SM or SS mov ah,04bh call read_bcp_config_reg cmp dl,1 jz primary_slave and al, not 11h jmp short @f primary_slave: and al, not 22h @@: call write_bcp_config_reg jmp program_channel_done secondry_channel: mov ah,04bh call read_bcp_config_reg cmp dl,3 jz secondry_slave and al, not 44h jmp short @f secondry_slave: and al, not 88h @@: call write_bcp_config_reg program_channel_done: ; Enable Prefetch count of primary or secondary channel. mov ah, 4ch ; Assume primary channel. cmp dl, 2 ; Primary channel ? jb put_prefetch_depth_count mov ah, 4eh ; Secondary channel. put_prefetch_depth_count : ; AH = PCI_IDE_DEVICE_FUNC_NUMBER. xor al, al ; prefetch count (low) = 0 call write_bcp_config_reg inc ah ; next reg# mov al, 02h ; prefetch count (low) = 0 call write_bcp_config_reg ; popa ret ;-------------------------------; ; program_ultra_dma ; CHIPSET SPECIFIC CODE ;-------------------------------;---------------------------------------; ; This routine must program the Ultra DMA/33 mode paramters. ; ; input : ; ; BL = PIO mode to be programmed ; ; DL = 0 for Primary Master. ; ; 1 for Primary Slave. ; ; 2 for Secondary Master. ; ; 3 for Secondary Slave. ; ; ebx.31=cdrom or hard ; ecx=31...24 ; stack available ; ; output: ; ; CH = updated DMA information ; ; 00000000: If DMA should not be used ; ; 00010nnn: Singleword Non-Sync DMA mode, nnn = mode value ; ; 00100nnn: Multiword Non-Sync DMA mode, nnn = mode value ; ; 01000nnn: Sync DMA mode, nnn = mode value ; ; None. PIO mode is programmed ; ; register usage -- cx ; ;-----------------------------------------------------------------------; advanced_udma_mode_timing_table label byte db 1111b ; mode 0 db 1101b ; mode 1 db 1011b ; mode 2 db 1010b ; mode 3 db 1001b ; mode 4 program_ultra_dma: push eax push ebx push ecx push edx push esi shr ecx,16 test ch,01000000b jz no_ultra_DMA ;;------------------------------------;; ;; prevent DMA/66 using 40 pins cable ;; ;; IDE register 48h bit 4 : channel 0 ;; ;; IDE register 48h bit 5 : channel 1 ;; ;; If register value = 1 : 40pin cable;; ;; = 0 : 80pin cable;; ;;------------------------------------;; and dl,03h cmp dl,01h mov bl,00010000b jbe @f shl bl,01h @@: mov ah,48h call read_bcp_config_reg test al,bl jz @f and ch,not 07h ;; clear UDMA mode value or ch,02h ;; set UDMA value 2 @@: ;;------------------------------------;; mov bl,ch and bl,00000111b xor bh,bh ; xor bl,00000011b ; mode2 10->chipset65 01 ; shl bl,5 ; mode1 01->chipset65 10 ; or bl,10000000b ; mode0 00->chipset65 11 ; movzx si, dl ; SI = Hard disk table index. mov bx, word ptr cs:advanced_udma_mode_timing_table[bx] shl bx,4 movzx si, dl mov ah, byte ptr cs:onboard_pci_ide_timing_registers[si] ; ah = reg# inc ah call read_bcp_config_reg or al, bl call write_bcp_config_reg no_ultra_DMA: pop esi pop edx mov bx,cx pop ecx mov cx,bx pop ebx pop eax ret ;-----------------------------------------------------------------------; ;---------------------------------------; ; Input: ah = register# ; al = data to be written ; word ptr cs:BusDevFuncNumber = Bus/Dev/Func# ; Registers destroyed: None ;---------------------------------------; write_bcp_config_reg: push di push cx push bx push ax movzx di, ah ; DI = reg# mov bx, word ptr cs:BusDevFuncNumber ;BX = SiS5513 IDE Bus/Dev/Func# mov ah, RT_PCI_WRITE_CFG_BYTE mov cl, al ; CL = data to be written CALL_RT_FUNCTION pop ax pop bx pop cx pop di ret ;---------------------------------------; ; Input: ah = register# ; word ptr cs:BusDevFuncNumber = Bus/Dev/Func# ; Output: al = data read ; Registers destroyed: None ;---------------------------------------; read_bcp_config_reg: push di push cx push bx push ax movzx di, ah ; DI = reg# mov bx, word ptr cs:BusDevFuncNumber ;BX = SiS5513 IDE Bus/Dev/Func# mov ah, RT_PCI_READ_CFG_BYTE CALL_RT_FUNCTION pop ax ; restore AH mov al, cl ; AL = data read pop bx pop cx pop di ret ;---------------------------------------; ; AdjustSetup ; ;---------------------------------------;-------------------------------------; ; This routine programs any peripheral chip specific parameters which need to ; ; be programmed after SETUP e.g. Serial Port FIFO enable, Parallel Port ; ; Direction, etc. Please note that before setup, these parameters should be ; ; set to disabled (normal) setting. This routine is called from ADJUST_SETUP ; ; hook in PC1.ASM file. ; ; ; ; Input: Nothing ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; extrn check_cmos_data:near AdjustSetup proc near private ret AdjustSetup endp ;---------------------------------------; ; IsrInstall ; ;---------------------------------------;-------------------------------------; ; This routine may hook any interrupt vector. This hook will be called only ; ; when the BIOS is running from RAM, so any old vector address may be saved ; ; in the code segment for chaining. ; ; ; ; Input: Nothing ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; IsrInstall proc near private ret IsrInstall endp ;---------------------------------------; ; InitHotKey ; ;---------------------------------------;-------------------------------------; ; This routine can be used to do any peripheral programming after hot key ; ; setup is run and system does not need to reboot. this routine is called ; ; from HOT_KEY_ADJUST_SETUP. ; ; ; ; Input: Pointer to _old_cmos_buffer and _common_cmos_buffer ?.............. ; ; DS = Segment of _old_cmos_buffer and _common_cmos_buffer ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; InitHotKey proc near private ret InitHotKey endp ;---------------------------------------; ; InitBufferPrfOptimal ; ;---------------------------------------;-------------------------------------; ; This routine can be used to update _common_cmos_buffer in peripheral setup ; ; screen when user loads optimal values. This routine is called from ; ; CMOS_SETUP. ; ; ; ; Input: Pointer to _common_cmos_buffer ?................. ; ; DS = ES = Segment of _common_cmos_buffer ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; InitBufferPrfOptimal proc near private ret InitBufferPrfOptimal endp ;---------------------------------------; ; InitBufferPrfFailSafe ; ;---------------------------------------;-------------------------------------; ; This routine can be used to update _common_cmos_buffer in peripheral setup ; ; screen when user loads fail safe values. This routine is called from ; ; CMOS_SETUP. ; ; ; ; Input: Pointer to _common_cmos_buffer ?................. ; ; DS = ES = Segment of _common_cmos_buffer ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; InitBufferPrfFailSafe proc near private ret InitBufferPrfFailSafe endp ;---------------------------------------; ; GetHardwareConfig ; ;---------------------------------------;-------------------------------------; ; This routine determines the current configuration of the peripheral device ; ; by reading directly from its registers. The value returned is an entry ; ; number in the DeviceConfigTable. ; ; ; ; Value Read Value Read ; ; From From Entry # in Config ; ; Reg 4A:2 Reg 4A:1 DeviceConfigTable Setting ; ; ------------ ------------ ----------------- -------- ; ; 0 0 0 Disabled ; ; 0 1 1 Primary ; ; 1 0 2 Secondary ; ; 1 1 3 Both ; ; ; ; Input: Nothing ; ; Stack available ; ; ; ; Output: AL = Entry number in DeviceConfigTable that represents the current ; ; configuration of the peripheral device. ; ; ; ; Destroys: AH ; ;-----------------------------------------------------------------------------; GetHardwareConfig proc near private ; First check if IDE has been disabled by writting 0 to RX04 mov ah, 04h call read_bcp_config_reg and al, 07h ; Disabled ? jz ghc_exit ; Yes.. AL = 0 mov ah, 4ah call read_bcp_config_reg and al, 00000110b ; Keep bit2,1 shr al, 1 ; Right adjustified ghc_exit: ret GetHardwareConfig endp ;---------------------------------------; ; SetHardwareConfig ; ;---------------------------------------;-------------------------------------; ; This routine sets the current configuration of the peripheral device by ; ; writing directly to its registers. ; ; ; ; Value Read Value Read ; ; Entry # in From From Config ; ; DeviceConfigTable Reg 4A:2 Reg 4A:1 Setting ; ; ------------------ ----------- ------------ -------- ; ; 0 0 0 Disabled ; ; 1 0 1 Primary ; ; 2 1 0 Secondary ; ; 3 1 1 Both ; ; ; ; Input: AL = Entry number in DeviceConfigTable ; ; DS:SI = Pointer to the node data ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: AX, BX ; ;-----------------------------------------------------------------------------; SetHardwareConfig proc near private push ax push ax push ecx push di mov bx, word ptr cs:BusDevFuncNumber ;BX = IDE Bus/Dev/Func# movzx ecx, (DualBmIdeDevNodeData ptr [si]).PriPort1.fpdes_base mov di, 10h mov ah, RT_PCI_WRITE_CFG_DWORD CALL_RT_FUNCTION ;Write ECX to IDE Reg 10h mov cx,(DualBmIdeDevNodeData ptr [si]).PriPort2.fpdes_base mov di, 14h mov ah, RT_PCI_WRITE_CFG_DWORD CALL_RT_FUNCTION ;Write ECX to IDE Reg 14h mov cx, (DualBmIdeDevNodeData ptr [si]).SecPort1.fpdes_base mov di, 18h mov ah, RT_PCI_WRITE_CFG_DWORD CALL_RT_FUNCTION ;Write ECX to IDE Reg 18h mov cx,(DualBmIdeDevNodeData ptr [si]).SecPort2.fpdes_base mov di, 1ch mov ah, RT_PCI_WRITE_CFG_DWORD CALL_RT_FUNCTION ;Write ECX to IDE Reg 1ch mov cx, (DualBmIdeDevNodeData ptr [si]).BusPort.pdes_min_base mov di, 20h ;DI = IDE Register 20 (BA4) mov ah, RT_PCI_WRITE_CFG_DWORD CALL_RT_FUNCTION ;Write ECX to IDE Reg 20h pop di pop ecx pop bx mov bh, 05h or bl,bl ; to be disabled ? jnz enable_5513 ; no.. mov bh, 0 enable_5513: ;program_channels ; BL = input value of AL shl bl, 1 ; shift to bit1,2 mov ah, 4ah call read_bcp_config_reg and al, 11111001b or al, bl call write_bcp_config_reg ; enable ide globally in configuration space mov ah, 04h call read_bcp_config_reg and al, not 07h or al, bh call write_bcp_config_reg pop ax or ax,ax jz short @f ;; for slove NT problem pusha mov dx, (DualBmIdeDevNodeData ptr [si]).BusPort.pdes_min_base and dl,0f0h add dx,2 ; Primary offset 02h in al,dx jmp short $+2 or al,60h jmp short $+2 out dx,al add dx,8 ; Secondary offset 0ah in al,dx jmp short $+2 or al,60h jmp short $+2 out dx,al popa @@: ret SetHardwareConfig endp ;---------------------------------------; ; ConfigNumberToNodeData ; ;---------------------------------------;-------------------------------------; ; This routine copies data from the given ConfigTableEntry into the proper ; ; fields in the node's resource descriptors. ; ; ; ; Input: AL = Entry number in DeviceConfigTable ; ; DS:SI = Pointer to buffer containing node structure ; ; Stack available ; ; ; ; Output: Nothing ; ; ; ; Destroys: Nothing ; ;-----------------------------------------------------------------------------; ConfigNumberToNodeData proc near private pusha mov bl, size ConfigTableEntry mul bl ;AX = * mov bx, offset DeviceConfigTable add bx, ax ;BX = proper ConfigTableEntry ;Copy fields from the given ConfigTableEntry into the device node ;before it is returned to the caller. mov ax, (ConfigTableEntry ptr cs:[bx]).PriAddress1 mov (DualBmIdeDevNodeData ptr [si]).PriPort1.fpdes_base, ax mov al, (ConfigTableEntry ptr cs:[bx]).PriSize1 mov (DualBmIdeDevNodeData ptr [si]).PriPort1.fpdes_length, al mov ax, (ConfigTableEntry ptr cs:[bx]).PriAddress2 mov (DualBmIdeDevNodeData ptr [si]).PriPort2.fpdes_base, ax mov al, (ConfigTableEntry ptr cs:[bx]).PriSize2 mov (DualBmIdeDevNodeData ptr [si]).PriPort2.fpdes_length, al mov ax, (ConfigTableEntry ptr cs:[bx]).PriIrqMask mov (DualBmIdeDevNodeData ptr [si]).PriIrq.ides_irq_mask, ax mov ax, (ConfigTableEntry ptr cs:[bx]).SecAddress1 mov (DualBmIdeDevNodeData ptr [si]).SecPort1.fpdes_base, ax mov al, (ConfigTableEntry ptr cs:[bx]).SecSize1 mov (DualBmIdeDevNodeData ptr [si]).SecPort1.fpdes_length, al mov ax, (ConfigTableEntry ptr cs:[bx]).SecAddress2 mov (DualBmIdeDevNodeData ptr [si]).SecPort2.fpdes_base, ax mov al, (ConfigTableEntry ptr cs:[bx]).SecSize2 mov (DualBmIdeDevNodeData ptr [si]).SecPort2.fpdes_length, al mov ax, (ConfigTableEntry ptr cs:[bx]).SecIrqMask mov (DualBmIdeDevNodeData ptr [si]).SecIrq.ides_irq_mask, ax ;The BIOS's resource manager needs to know the PCI bus/dev/func number ;of this PCI device so we must embed this data somewhere in the node. ;Stuff the device's PCI bus/dev/func number into the base and sub type ;fields of the device node. This is ok because this node is only ;visible during POST and is invisible once the system boots. mov bx, word ptr cs:BusDevFuncNumber ;BX = PIIX IDE Bus/Dev/Func# mov (DualBmIdeDevNodeData ptr [si]).NodeData.sdn_base_type, bl mov (DualBmIdeDevNodeData ptr [si]).NodeData.sdn_sub_type, bh popa ret ConfigNumberToNodeData endp ;---------------------------------------; ; NodeDataToConfigNumber ; ;---------------------------------------;-------------------------------------; ; This routine examines the node data and determines which ConfigTableEntry ; ; corresponds to the current configuration of the node. ; ; ; ; Input: AL = Node number ; ; DS:SI = Pointer to the node data ; ; Stack available ; ; ; ; Output: CF = Clear if a ConfigTableEntry matching the node data was found ; ; Set if no ConfigTableEntry matches the node data (node data ; ; contains an invalid configuration) ; ; AL = Entry number in DeviceConfigTable ; ; ; ; Destroys: DX ; ;-----------------------------------------------------------------------------; NodeDataToConfigNumber proc near private mov dx, (DualBmIdeDevNodeData ptr [si]).PriPort1.fpdes_base add dx, (DualBmIdeDevNodeData ptr [si]).SecPort1.fpdes_base xor al, al ;Entry number = 0 or dx, dx jz ConfigNumberFound ;Br if Pri and Sec both disabled (CF=0) inc ax ;Entry number = 1 cmp dx, 1F0h je ConfigNumberFound ;Br if Pri enabled, Sec disabled (CF=0) inc ax ;Entry number = 2 cmp dx, 170h je ConfigNumberFound ;Br if Sec enabled, Pri disabled (CF=0) inc ax ;Entry number = 3 cmp dx, 1F0h + 170h je ConfigNumberFound ;Br if Pri and Sec both enabled (CF=0) stc ;Indicate error, invalid configuration ConfigNumberFound: ret NodeDataToConfigNumber endp ;-----------------------------------------------------------------------------; DummyRet proc near private ret DummyRet endp ;-----------------------------------------------------------------------------; ;*****************************************************************; ;*****************************************************************; ;** **; ;** (C)Copyright 1985-1996, American Megatrends, Inc. **; ;** **; ;** All Rights Reserved. **; ;** **; ;** 6145-F Northbelt Pkwy, Norcross, GA 30071 **; ;** **; ;** Phone (770)-246-8600 **; ;** **; ;*****************************************************************; ;*****************************************************************; _text ends end