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