| 1 | ; Project name : XTIDE Universal BIOS
|
|---|
| 2 | ; Description : Sets IDE Device specific parameters to DPT.
|
|---|
| 3 |
|
|---|
| 4 | ; Section containing code
|
|---|
| 5 | SECTION .text
|
|---|
| 6 |
|
|---|
| 7 | ;--------------------------------------------------------------------
|
|---|
| 8 | ; IdeDPT_Finalize
|
|---|
| 9 | ; Parameters:
|
|---|
| 10 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 11 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 12 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 13 | ; Returns:
|
|---|
| 14 | ; CF: Clear, IDE interface only supports hard disks
|
|---|
| 15 | ; Corrupts registers:
|
|---|
| 16 | ; AX, BX, CX, DX
|
|---|
| 17 | ;--------------------------------------------------------------------
|
|---|
| 18 | IdeDPT_Finalize:
|
|---|
| 19 |
|
|---|
| 20 | ;--------------------------------------------------------------------
|
|---|
| 21 | ; .StoreBlockMode
|
|---|
| 22 | ; Parameters:
|
|---|
| 23 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 24 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 25 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 26 | ; Returns:
|
|---|
| 27 | ; Nothing
|
|---|
| 28 | ; Corrupts registers:
|
|---|
| 29 | ; AX
|
|---|
| 30 | ;--------------------------------------------------------------------
|
|---|
| 31 | .StoreBlockMode:
|
|---|
| 32 | mov BYTE [di+DPT_ATA.bBlockSize], 1
|
|---|
| 33 |
|
|---|
| 34 | %ifdef MODULE_ADVANCED_ATA
|
|---|
| 35 | ;--------------------------------------------------------------------
|
|---|
| 36 | ; .StoreDeviceType
|
|---|
| 37 | ; Parameters:
|
|---|
| 38 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 39 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 40 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 41 | ; Returns:
|
|---|
| 42 | ; Nothing
|
|---|
| 43 | ; Corrupts registers:
|
|---|
| 44 | ; Nothing
|
|---|
| 45 | ;--------------------------------------------------------------------
|
|---|
| 46 | .StoreDeviceType:
|
|---|
| 47 | call IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
|
|---|
| 48 |
|
|---|
| 49 | ;--------------------------------------------------------------------
|
|---|
| 50 | ; .StorePioModeAndTimings
|
|---|
| 51 | ; Parameters:
|
|---|
| 52 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 53 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 54 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 55 | ; Returns:
|
|---|
| 56 | ; Nothing
|
|---|
| 57 | ; Corrupts registers:
|
|---|
| 58 | ; AX, BX, CX
|
|---|
| 59 | ;--------------------------------------------------------------------
|
|---|
| 60 | .StorePioMode:
|
|---|
| 61 | call AtaID_GetMaxPioModeToAXandMinCycleTimeToCX
|
|---|
| 62 | mov [di+DPT_ADVANCED_ATA.wMinPioCycleTime], cx
|
|---|
| 63 | mov [di+DPT_ADVANCED_ATA.bPioMode], al
|
|---|
| 64 | or [di+DPT.bFlagsHigh], ah
|
|---|
| 65 |
|
|---|
| 66 | ;--------------------------------------------------------------------
|
|---|
| 67 | ; .DetectAdvancedIdeController
|
|---|
| 68 | ; Parameters:
|
|---|
| 69 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 70 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 71 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 72 | ; Returns:
|
|---|
| 73 | ; Nothing
|
|---|
| 74 | ; Corrupts registers:
|
|---|
| 75 | ; AX, BX, CX, DX
|
|---|
| 76 | ;--------------------------------------------------------------------
|
|---|
| 77 | .DetectAdvancedIdeController:
|
|---|
| 78 | call AccessDPT_GetIdeBasePortToBX
|
|---|
| 79 | call AdvAtaInit_DetectControllerForIdeBaseInBX
|
|---|
| 80 | mov [di+DPT_ADVANCED_ATA.wControllerID], ax ; Store zero if none detected
|
|---|
| 81 | mov [di+DPT_ADVANCED_ATA.wControllerBasePort], dx
|
|---|
| 82 | jnc SHORT .NoAdvancedControllerDetected
|
|---|
| 83 |
|
|---|
| 84 | ; Use highest common PIO mode from controller and drive.
|
|---|
| 85 | ; Many VLB controllers support PIO modes up to 2.
|
|---|
| 86 | call AdvAtaInit_GetControllerMaxPioModeToAL
|
|---|
| 87 | jnc SHORT .ChangeTo32bitDevice
|
|---|
| 88 | and BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_IORDY ; No IORDY supported if need to limit
|
|---|
| 89 | MIN_U [di+DPT_ADVANCED_ATA.bPioMode], al
|
|---|
| 90 |
|
|---|
| 91 | ; We have detected 32-bit controller so change Device Type since
|
|---|
| 92 | ; it might have been set to 16-bit on IDEVARS
|
|---|
| 93 | .ChangeTo32bitDevice:
|
|---|
| 94 | mov BYTE [di+DPT_ADVANCED_ATA.bDevice], DEVICE_32BIT_ATA
|
|---|
| 95 |
|
|---|
| 96 | .NoAdvancedControllerDetected:
|
|---|
| 97 |
|
|---|
| 98 | %endif ; MODULE_ADVANCED_ATA
|
|---|
| 99 |
|
|---|
| 100 | ;--------------------------------------------------------------------
|
|---|
| 101 | ; IdeDPT_StoreReversedAddressLinesFlagIfNecessary
|
|---|
| 102 | ; Parameters:
|
|---|
| 103 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 104 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 105 | ; Returns:
|
|---|
| 106 | ; CF: Always clear
|
|---|
| 107 | ; Corrupts registers:
|
|---|
| 108 | ; Nothing
|
|---|
| 109 | ;--------------------------------------------------------------------
|
|---|
| 110 | IdeDPT_StoreReversedAddressLinesFlagIfNecessary:
|
|---|
| 111 | cmp BYTE [cs:bp+IDEVARS.bDevice], DEVICE_XTIDE_REV2
|
|---|
| 112 | je SHORT .SetFlagForSwappedA0andA3
|
|---|
| 113 | cmp BYTE [cs:bp+IDEVARS.bDevice], DEVICE_FAST_XTIDE
|
|---|
| 114 | jne SHORT .EndDPT
|
|---|
| 115 | .SetFlagForSwappedA0andA3:
|
|---|
| 116 | or BYTE [di+DPT.bFlagsHigh], FLGH_DPT_REVERSED_A0_AND_A3
|
|---|
| 117 | .EndDPT:
|
|---|
| 118 | clc
|
|---|
| 119 | ret
|
|---|
| 120 |
|
|---|
| 121 |
|
|---|
| 122 | %ifdef MODULE_ADVANCED_ATA
|
|---|
| 123 | ;--------------------------------------------------------------------
|
|---|
| 124 | ; IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI
|
|---|
| 125 | ; Parameters:
|
|---|
| 126 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 127 | ; CS:BP: Ptr to IDEVARS for the controller
|
|---|
| 128 | ; Returns:
|
|---|
| 129 | ; Nothing
|
|---|
| 130 | ; Corrupts registers:
|
|---|
| 131 | ; AL
|
|---|
| 132 | ;--------------------------------------------------------------------
|
|---|
| 133 | IdeDPT_StoreDeviceTypeFromIdevarsInCSBPtoDPTinDSDI:
|
|---|
| 134 | mov al, [cs:bp+IDEVARS.bDevice]
|
|---|
| 135 | mov [di+DPT_ADVANCED_ATA.bDevice], al
|
|---|
| 136 | ret
|
|---|
| 137 |
|
|---|
| 138 | %endif
|
|---|
