Changeset 363 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeDPT.asm


Ignore:
Timestamp:
Mar 26, 2012, 4:20:43 PM (13 years ago)
Author:
aitotat@…
google:author:
aitotat@gmail.com
Message:

Changes to XTIDE Universal BIOS:

  • Added Advanced ATA Module (MODULE_ADVANCED_ATA) with native support for QDI Vision QD6500 and QD6580 VLB IDE Controllers.
  • Hopefully optimized IDE transfer functions for 8088 (replaced some memory accesses from WORD to BYTE).
  • XT build does not fit in 8k at the moment!!!
File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeDPT.asm

    r361 r363  
    1414;       CF:     Clear, IDE interface only supports hard disks
    1515;   Corrupts registers:
    16 ;       AX
     16;       AX, BX, CX, DX
    1717;--------------------------------------------------------------------
    1818IdeDPT_Finalize:
    19     ; Fall to .StoreBlockMode
    2019
    2120;--------------------------------------------------------------------
    … …  
    3433    mov     ah, [es:si+ATA1.bBlckSize]      ; Max block size in sectors
    3534    mov     [di+DPT_ATA.wSetAndMaxBlock], ax
    36     ; Fall to IdeDPT_StoreReversedAddressLinesFlagIfNecessary
     35
     36%ifdef MODULE_ADVANCED_ATA
     37;--------------------------------------------------------------------
     38; .StoreDeviceType
     39;   Parameters:
     40;       DS:DI:  Ptr to Disk Parameter Table
     41;       ES:SI:  Ptr to 512-byte ATA information read from the drive
     42;       CS:BP:  Ptr to IDEVARS for the controller
     43;   Returns:
     44;       Nothing
     45;   Corrupts registers:
     46;       Nothing
     47;--------------------------------------------------------------------
     48.StoreDeviceType:
     49    call    IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
     50
     51;--------------------------------------------------------------------
     52; .StorePioModeAndTimings
     53;   Parameters:
     54;       DS:DI:  Ptr to Disk Parameter Table
     55;       ES:SI:  Ptr to 512-byte ATA information read from the drive
     56;       CS:BP:  Ptr to IDEVARS for the controller
     57;   Returns:
     58;       Nothing
     59;   Corrupts registers:
     60;       AX, CX, DX
     61;--------------------------------------------------------------------
     62.StorePioMode:
     63    call    AtaID_GetMaxPioModeToAXandMinCycleTimeToDX
     64    call    AtaID_ConvertPioModeFromAXandMinCycleTimeFromDXtoActiveAndRecoveryTime
     65    mov     [di+DPT_ATA.bPioMode], al
     66    mov     [di+DPT_ADVANCED_ATA.wMinPioActiveTimeNs], cx
     67    mov     [di+DPT_ADVANCED_ATA.wMinPioRecoveryTimeNs], dx
     68
     69;--------------------------------------------------------------------
     70; .DetectAdvancedIdeController
     71;   Parameters:
     72;       DS:DI:  Ptr to Disk Parameter Table
     73;       ES:SI:  Ptr to 512-byte ATA information read from the drive
     74;       CS:BP:  Ptr to IDEVARS for the controller
     75;   Returns:
     76;       Nothing
     77;   Corrupts registers:
     78;       AX, BX, CX, DX
     79;--------------------------------------------------------------------
     80.DetectAdvancedIdeController:
     81    mov     dx, [cs:bp+IDEVARS.wPort]
     82    mov     [di+DPT_ADVANCED_ATA.wIdeBasePort], dx
     83    call    AdvAtaInit_DetectControllerForIdeBaseInDX
     84    mov     [di+DPT_ADVANCED_ATA.wControllerID], ax ; Store zero if none detected
     85    mov     [di+DPT_ADVANCED_ATA.wControllerBasePort], cx
     86    jnc     SHORT .NoAdvancedControllerDetected
     87
     88    ; Use highest common PIO mode from controller and drive.
     89    ; Many VLB controllers support PIO modes up to 2.
     90    call    AdvAtaInit_GetControllerMaxPioModeToAL
     91    jnc     SHORT .ChangeTo32bitDevice
     92    MIN_U   [di+DPT_ATA.bPioMode], al
     93
     94    ; We have detected 32-bit controller so change Device Type since
     95    ; it might have been set to 16-bit on IDEVARS
     96.ChangeTo32bitDevice:
     97    mov     BYTE [di+DPT_ATA.bDevice], DEVICE_32BIT_ATA
     98
     99.NoAdvancedControllerDetected:
     100
     101%endif ; MODULE_ADVANCED_ATA
    37102
    38103;--------------------------------------------------------------------
    … …  
    42107;       CS:BP:  Ptr to IDEVARS for the controller
    43108;   Returns:
    44 ;       CF:     Always clear, we don't support floppies on the IDE inteface
     109;       CF:     Always clear
    45110;   Corrupts registers:
    46111;       Nothing
    … …  
    53118.SetFlagForSwappedA0andA3:
    54119    or      BYTE [di+DPT.bFlagsHigh], FLGH_DPT_REVERSED_A0_AND_A3
    55 
    56120.EndDPT:
    57121    clc
    58122    ret
     123
     124
     125%ifdef MODULE_ADVANCED_ATA
     126;--------------------------------------------------------------------
     127; IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
     128;   Parameters:
     129;       DS:DI:  Ptr to Disk Parameter Table
     130;       CS:BP:  Ptr to IDEVARS for the controller
     131;   Returns:
     132;       Nothing
     133;   Corrupts registers:
     134;       AL
     135;--------------------------------------------------------------------
     136IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI:
     137    mov     al, [cs:bp+IDEVARS.bDevice]
     138    mov     [di+DPT_ATA.bDevice], al
     139    ret
     140%endif
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