[150] | 1 | ; Project name : XTIDE Universal BIOS |
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| 2 | ; Description : Command and port direction functions for different device types. |
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| 3 | |
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| 4 | ; Section containing code |
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| 5 | SECTION .text |
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| 6 | |
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| 7 | ;-------------------------------------------------------------------- |
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| 8 | ; Device_FinalizeDPT |
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| 9 | ; Parameters: |
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| 10 | ; DS:DI: Ptr to Disk Parameter Table |
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| 11 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
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[160] | 12 | ; CS:BP: Ptr to IDEVARS for the controller |
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[150] | 13 | ; Returns: |
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| 14 | ; Nothing |
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| 15 | ; Corrupts registers: |
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| 16 | ; AX, BX, CX, DX |
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| 17 | ;-------------------------------------------------------------------- |
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| 18 | Device_FinalizeDPT: |
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[175] | 19 | %ifdef MODULE_SERIAL |
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[158] | 20 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
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[175] | 21 | jnz SHORT .FinalizeDptForSerialPortDevice |
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| 22 | %endif |
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[150] | 23 | jmp IdeDPT_Finalize |
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[175] | 24 | %ifdef MODULE_SERIAL |
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| 25 | .FinalizeDptForSerialPortDevice: |
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| 26 | jmp SerialDPT_Finalize |
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| 27 | %endif |
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[150] | 28 | |
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| 29 | ;-------------------------------------------------------------------- |
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| 30 | ; Device_ResetMasterAndSlaveController |
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| 31 | ; Parameters: |
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| 32 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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| 33 | ; Returns: |
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| 34 | ; AH: INT 13h Error Code |
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| 35 | ; CF: Cleared if success, Set if error |
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| 36 | ; Corrupts registers: |
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| 37 | ; AL, BX, CX, DX |
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| 38 | ;-------------------------------------------------------------------- |
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| 39 | Device_ResetMasterAndSlaveController: |
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[175] | 40 | %ifdef MODULE_SERIAL |
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[158] | 41 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
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[150] | 42 | jnz SHORT ReturnSuccessForSerialPort |
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[175] | 43 | %endif |
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[150] | 44 | jmp IdeCommand_ResetMasterAndSlaveController |
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| 45 | |
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| 46 | |
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| 47 | ;-------------------------------------------------------------------- |
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| 48 | ; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH |
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| 49 | ; Parameters: |
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| 50 | ; BH: Drive Select byte for Drive and Head Select Register |
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| 51 | ; DS: Segment to RAMVARS |
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| 52 | ; ES:SI: Ptr to buffer to receive 512-byte IDE Information |
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| 53 | ; CS:BP: Ptr to IDEVARS |
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| 54 | ; Returns: |
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| 55 | ; AH: INT 13h Error Code |
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| 56 | ; CF: Cleared if success, Set if error |
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| 57 | ; Corrupts registers: |
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| 58 | ; AL, BL, CX, DX, SI, DI, ES |
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| 59 | ;-------------------------------------------------------------------- |
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| 60 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH: |
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[175] | 61 | %ifdef MODULE_SERIAL |
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[150] | 62 | cmp BYTE [cs:bp+IDEVARS.bDevice], DEVICE_SERIAL_PORT |
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| 63 | je SHORT .IdentifyDriveFromSerialPort |
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[175] | 64 | %endif |
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[150] | 65 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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[175] | 66 | %ifdef MODULE_SERIAL |
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[150] | 67 | .IdentifyDriveFromSerialPort: |
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| 68 | jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
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[175] | 69 | %endif |
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[150] | 70 | |
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| 71 | ;-------------------------------------------------------------------- |
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| 72 | ; Device_OutputCommandWithParameters |
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| 73 | ; Parameters: |
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| 74 | ; BH: Default system timer ticks for timeout (can be ignored) |
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| 75 | ; BL: IDE Status Register bit to poll after command |
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| 76 | ; ES:SI: Ptr to buffer (for data transfer commands) |
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| 77 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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| 78 | ; SS:BP: Ptr to IDEPACK |
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| 79 | ; Returns: |
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| 80 | ; AH: INT 13h Error Code |
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| 81 | ; CF: Cleared if success, Set if error |
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| 82 | ; Corrupts registers: |
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| 83 | ; AL, BX, CX, DX, (ES:SI for data transfer commands) |
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| 84 | ;-------------------------------------------------------------------- |
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| 85 | ALIGN JUMP_ALIGN |
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| 86 | Device_OutputCommandWithParameters: |
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[175] | 87 | %ifdef MODULE_SERIAL |
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[158] | 88 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
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[150] | 89 | jnz SHORT .OutputCommandToSerialPort |
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[175] | 90 | %endif |
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[150] | 91 | jmp IdeCommand_OutputWithParameters |
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[175] | 92 | %ifdef MODULE_SERIAL |
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[150] | 93 | ALIGN JUMP_ALIGN |
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| 94 | .OutputCommandToSerialPort: |
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| 95 | jmp SerialCommand_OutputWithParameters |
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[175] | 96 | %endif |
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[150] | 97 | |
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| 98 | ;-------------------------------------------------------------------- |
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| 99 | ; Device_SelectDrive |
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| 100 | ; Parameters: |
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| 101 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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| 102 | ; SS:BP: Ptr to IDEPACK |
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| 103 | ; Returns: |
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| 104 | ; AH: INT 13h Error Code |
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| 105 | ; CF: Cleared if success, Set if error |
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| 106 | ; Corrupts registers: |
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| 107 | ; AL, BX, CX, DX |
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| 108 | ;-------------------------------------------------------------------- |
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| 109 | ALIGN JUMP_ALIGN |
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| 110 | Device_SelectDrive: |
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[175] | 111 | %ifdef MODULE_SERIAL |
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[158] | 112 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
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[150] | 113 | jnz SHORT ReturnSuccessForSerialPort |
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[175] | 114 | %endif |
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[150] | 115 | jmp IdeCommand_SelectDrive |
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[175] | 116 | %ifdef MODULE_SERIAL |
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[150] | 117 | ReturnSuccessForSerialPort: |
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| 118 | xor ax, ax |
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| 119 | ret |
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[175] | 120 | %endif |
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