| [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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| [238] | 7 |
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| [294] | 8 | %macro TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE 1
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| [238] | 9 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE
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| 10 | jnz SHORT %1
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| 11 | %endmacro
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| 12 |
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| 13 | %macro CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE 1
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| [268] | 14 | xchg ax, bx
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| [238] | 15 | eMOVZX bx, [di+DPT.bIdevarsOffset]
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| 16 | cmp BYTE [cs:bx+IDEVARS.bDevice], DEVICE_JRIDE_ISA
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| [268] | 17 | xchg bx, ax ; Restore BX
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| [238] | 18 | je SHORT %1
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| 19 | %endmacro
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| 20 |
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| 21 | %macro CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF 2
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| 22 | cmp BYTE [cs:bp+IDEVARS.bDevice], %1
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| 23 | je SHORT %2
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| 24 | %endmacro
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| 25 |
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| 26 |
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| 27 |
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| [150] | 28 | ;--------------------------------------------------------------------
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| 29 | ; Device_FinalizeDPT
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| 30 | ; Parameters:
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| 31 | ; DS:DI: Ptr to Disk Parameter Table
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| 32 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
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| [160] | 33 | ; CS:BP: Ptr to IDEVARS for the controller
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| [150] | 34 | ; Returns:
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| 35 | ; Nothing
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| 36 | ; Corrupts registers:
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| 37 | ; AX, BX, CX, DX
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| 38 | ;--------------------------------------------------------------------
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| [181] | 39 | %ifdef MODULE_SERIAL
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| [150] | 40 | Device_FinalizeDPT:
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| [258] | 41 | ; needs to check IDEVARS vs. checking the DPT as the serial bit in the DPT is set in the Finalize routine
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| 42 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .FinalizeDptForSerialPortDevice
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| [150] | 43 | jmp IdeDPT_Finalize
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| [294] | 44 | .FinalizeDptForSerialPortDevice:
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| [181] | 45 | jmp SerialDPT_Finalize
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| [238] | 46 |
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| 47 | %else ; IDE or JR-IDE/ISA
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| [181] | 48 | Device_FinalizeDPT EQU IdeDPT_Finalize
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| [175] | 49 | %endif
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| [150] | 50 |
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| [181] | 51 |
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| [150] | 52 | ;--------------------------------------------------------------------
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| 53 | ; Device_ResetMasterAndSlaveController
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| 54 | ; Parameters:
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| 55 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 56 | ; Returns:
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| 57 | ; AH: INT 13h Error Code
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| 58 | ; CF: Cleared if success, Set if error
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| 59 | ; Corrupts registers:
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| 60 | ; AL, BX, CX, DX
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| 61 | ;--------------------------------------------------------------------
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| [238] | 62 | %ifdef MODULE_JRIDE
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| 63 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 64 | Device_ResetMasterAndSlaveController:
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| [294] | 65 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [238] | 66 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
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| 67 | jmp IdeCommand_ResetMasterAndSlaveController
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| 68 |
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| 69 | %else ; IDE + JR-IDE/ISA
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| 70 | Device_ResetMasterAndSlaveController:
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| 71 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
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| 72 | jmp IdeCommand_ResetMasterAndSlaveController
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| 73 | %endif
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| 74 |
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| 75 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 76 | Device_ResetMasterAndSlaveController:
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| [294] | 77 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [181] | 78 | jmp IdeCommand_ResetMasterAndSlaveController
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| [238] | 79 |
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| 80 | %else ; IDE
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| [181] | 81 | Device_ResetMasterAndSlaveController EQU IdeCommand_ResetMasterAndSlaveController
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| [175] | 82 | %endif
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| [150] | 83 |
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| [238] | 84 | %ifdef MODULE_JRIDE
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| 85 | .ResetJrIDE:
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| 86 | jmp MemIdeCommand_ResetMasterAndSlaveController
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| 87 | %endif
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| [150] | 88 |
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| [238] | 89 |
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| [150] | 90 | ;--------------------------------------------------------------------
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| 91 | ; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH
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| 92 | ; Parameters:
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| 93 | ; BH: Drive Select byte for Drive and Head Select Register
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| 94 | ; DS: Segment to RAMVARS
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| [218] | 95 | ; ES:SI: Ptr to normalized buffer to receive 512-byte IDE Information
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| [150] | 96 | ; CS:BP: Ptr to IDEVARS
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| 97 | ; Returns:
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| 98 | ; AH: INT 13h Error Code
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| 99 | ; CF: Cleared if success, Set if error
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| 100 | ; Corrupts registers:
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| 101 | ; AL, BL, CX, DX, SI, DI, ES
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| 102 | ;--------------------------------------------------------------------
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| [238] | 103 | %ifdef MODULE_JRIDE
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| 104 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 105 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| 106 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
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| 107 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
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| 108 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 109 |
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| 110 | %else ; IDE + JR-IDE/ISA
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| 111 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| 112 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
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| 113 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 114 | %endif
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| 115 |
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| 116 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 117 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| [238] | 118 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
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| [150] | 119 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| [181] | 120 |
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| [238] | 121 | %else ; IDE
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| 122 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH EQU IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 123 | %endif
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| 124 |
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| 125 | %ifdef MODULE_JRIDE
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| 126 | .IdentifyDriveFromJrIde:
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| 127 | jmp MemIdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 128 | %endif
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| 129 |
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| 130 | %ifdef MODULE_SERIAL
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| [150] | 131 | .IdentifyDriveFromSerialPort:
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| 132 | jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| [175] | 133 | %endif
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| [150] | 134 |
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| [181] | 135 |
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| [150] | 136 | ;--------------------------------------------------------------------
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| 137 | ; Device_OutputCommandWithParameters
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| 138 | ; Parameters:
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| 139 | ; BH: Default system timer ticks for timeout (can be ignored)
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| 140 | ; BL: IDE Status Register bit to poll after command
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| [218] | 141 | ; ES:SI: Ptr to normalized buffer (for data transfer commands)
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| [150] | 142 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 143 | ; SS:BP: Ptr to IDEPACK
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| 144 | ; Returns:
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| 145 | ; AH: INT 13h Error Code
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| [249] | 146 | ; CX: Number of successfully transferred sectors (for transfer commands)
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| [150] | 147 | ; CF: Cleared if success, Set if error
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| 148 | ; Corrupts registers:
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| [249] | 149 | ; AL, BX, (CX), DX, (ES:SI for data transfer commands)
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| [150] | 150 | ;--------------------------------------------------------------------
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| [238] | 151 | %ifdef MODULE_JRIDE
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| 152 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 153 | Device_OutputCommandWithParameters:
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| [294] | 154 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
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| [238] | 155 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
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| 156 | jmp IdeCommand_OutputWithParameters
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| 157 |
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| 158 | %else ; IDE + JR-IDE/ISA
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| 159 | Device_OutputCommandWithParameters:
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| 160 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
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| 161 | jmp IdeCommand_OutputWithParameters
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| 162 | %endif
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| 163 |
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| 164 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 165 | Device_OutputCommandWithParameters:
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| [294] | 166 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
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| [150] | 167 | jmp IdeCommand_OutputWithParameters
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| [181] | 168 |
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| [238] | 169 | %else ; IDE
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| 170 | Device_OutputCommandWithParameters EQU IdeCommand_OutputWithParameters
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| 171 | %endif
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| 172 |
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| 173 | %ifdef MODULE_JRIDE
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| [150] | 174 | ALIGN JUMP_ALIGN
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| [238] | 175 | .OutputCommandToJrIDE:
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| 176 | jmp MemIdeCommand_OutputWithParameters
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| 177 | %endif
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| 178 |
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| 179 | %ifdef MODULE_SERIAL
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| 180 | ALIGN JUMP_ALIGN
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| [150] | 181 | .OutputCommandToSerialPort:
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| 182 | jmp SerialCommand_OutputWithParameters
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| [175] | 183 | %endif
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| [150] | 184 |
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| [181] | 185 |
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| [150] | 186 | ;--------------------------------------------------------------------
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| 187 | ; Device_SelectDrive
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| 188 | ; Parameters:
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| 189 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 190 | ; SS:BP: Ptr to IDEPACK
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| 191 | ; Returns:
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| 192 | ; AH: INT 13h Error Code
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| 193 | ; CF: Cleared if success, Set if error
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| 194 | ; Corrupts registers:
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| 195 | ; AL, BX, CX, DX
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| 196 | ;--------------------------------------------------------------------
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| [238] | 197 | %ifdef MODULE_JRIDE
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| 198 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 199 | Device_SelectDrive:
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| [294] | 200 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [238] | 201 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
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| 202 | jmp IdeCommand_SelectDrive
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| 203 |
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| 204 | %else ; IDE + JR-IDE/ISA
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| 205 | Device_SelectDrive:
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| 206 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
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| 207 | jmp IdeCommand_SelectDrive
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| 208 | %endif
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| 209 |
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| 210 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 211 | Device_SelectDrive:
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| [294] | 212 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [150] | 213 | jmp IdeCommand_SelectDrive
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| [181] | 214 |
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| [238] | 215 | %else ; IDE
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| 216 | Device_SelectDrive EQU IdeCommand_SelectDrive
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| 217 | %endif
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| 218 |
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| 219 | %ifdef MODULE_JRIDE
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| 220 | ALIGN JUMP_ALIGN
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| 221 | .SelectJrIdeDrive:
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| 222 | jmp MemIdeCommand_SelectDrive
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| 223 | %endif
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| 224 |
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| 225 | %ifdef MODULE_SERIAL
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| 226 | ALIGN JUMP_ALIGN
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| [150] | 227 | ReturnSuccessForSerialPort:
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| 228 | xor ax, ax
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| 229 | ret
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| [175] | 230 | %endif
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