| [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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| [376] | 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
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| 7 | ;
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| 8 | ; This program is free software; you can redistribute it and/or modify
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| 9 | ; it under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2 of the License, or
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| 11 | ; (at your option) any later version.
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| 12 | ;
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| 13 | ; This program is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| [150] | 20 | ; Section containing code
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| 21 | SECTION .text
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| 22 |
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| [238] | 23 |
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| [294] | 24 | %macro TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE 1
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| [238] | 25 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE
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| 26 | jnz SHORT %1
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| 27 | %endmacro
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| 28 |
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| 29 | %macro CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE 1
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| [268] | 30 | xchg ax, bx
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| [238] | 31 | eMOVZX bx, [di+DPT.bIdevarsOffset]
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| 32 | cmp BYTE [cs:bx+IDEVARS.bDevice], DEVICE_JRIDE_ISA
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| [268] | 33 | xchg bx, ax ; Restore BX
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| [238] | 34 | je SHORT %1
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| 35 | %endmacro
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| 36 |
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| 37 | %macro CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF 2
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| 38 | cmp BYTE [cs:bp+IDEVARS.bDevice], %1
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| 39 | je SHORT %2
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| 40 | %endmacro
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| 41 |
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| 42 |
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| 43 |
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| [150] | 44 | ;--------------------------------------------------------------------
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| 45 | ; Device_FinalizeDPT
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| 46 | ; Parameters:
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| 47 | ; DS:DI: Ptr to Disk Parameter Table
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| 48 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
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| [160] | 49 | ; CS:BP: Ptr to IDEVARS for the controller
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| [150] | 50 | ; Returns:
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| 51 | ; Nothing
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| 52 | ; Corrupts registers:
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| 53 | ; AX, BX, CX, DX
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| 54 | ;--------------------------------------------------------------------
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| [181] | 55 | %ifdef MODULE_SERIAL
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| [150] | 56 | Device_FinalizeDPT:
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| [258] | 57 | ; 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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| 58 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .FinalizeDptForSerialPortDevice
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| [150] | 59 | jmp IdeDPT_Finalize
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| [294] | 60 | .FinalizeDptForSerialPortDevice:
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| [181] | 61 | jmp SerialDPT_Finalize
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| [238] | 62 |
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| 63 | %else ; IDE or JR-IDE/ISA
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| [181] | 64 | Device_FinalizeDPT EQU IdeDPT_Finalize
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| [175] | 65 | %endif
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| [150] | 66 |
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| [181] | 67 |
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| [150] | 68 | ;--------------------------------------------------------------------
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| 69 | ; Device_ResetMasterAndSlaveController
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| 70 | ; Parameters:
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| 71 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 72 | ; Returns:
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| 73 | ; AH: INT 13h Error Code
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| 74 | ; CF: Cleared if success, Set if error
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| 75 | ; Corrupts registers:
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| 76 | ; AL, BX, CX, DX
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| 77 | ;--------------------------------------------------------------------
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| [238] | 78 | %ifdef MODULE_JRIDE
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| 79 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 80 | Device_ResetMasterAndSlaveController:
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| [294] | 81 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [238] | 82 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
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| 83 | jmp IdeCommand_ResetMasterAndSlaveController
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| 84 |
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| 85 | %else ; IDE + JR-IDE/ISA
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| 86 | Device_ResetMasterAndSlaveController:
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| 87 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
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| 88 | jmp IdeCommand_ResetMasterAndSlaveController
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| 89 | %endif
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| 90 |
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| 91 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 92 | Device_ResetMasterAndSlaveController:
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| [294] | 93 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [181] | 94 | jmp IdeCommand_ResetMasterAndSlaveController
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| [238] | 95 |
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| 96 | %else ; IDE
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| [181] | 97 | Device_ResetMasterAndSlaveController EQU IdeCommand_ResetMasterAndSlaveController
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| [175] | 98 | %endif
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| [150] | 99 |
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| [238] | 100 | %ifdef MODULE_JRIDE
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| 101 | .ResetJrIDE:
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| 102 | jmp MemIdeCommand_ResetMasterAndSlaveController
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| 103 | %endif
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| [150] | 104 |
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| [238] | 105 |
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| [150] | 106 | ;--------------------------------------------------------------------
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| 107 | ; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH
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| 108 | ; Parameters:
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| 109 | ; BH: Drive Select byte for Drive and Head Select Register
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| 110 | ; DS: Segment to RAMVARS
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| [218] | 111 | ; ES:SI: Ptr to normalized buffer to receive 512-byte IDE Information
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| [150] | 112 | ; CS:BP: Ptr to IDEVARS
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| 113 | ; Returns:
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| 114 | ; AH: INT 13h Error Code
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| 115 | ; CF: Cleared if success, Set if error
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| 116 | ; Corrupts registers:
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| 117 | ; AL, BL, CX, DX, SI, DI, ES
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| 118 | ;--------------------------------------------------------------------
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| [238] | 119 | %ifdef MODULE_JRIDE
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| 120 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 121 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| 122 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
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| 123 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
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| 124 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 125 |
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| 126 | %else ; IDE + JR-IDE/ISA
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| 127 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| 128 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
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| 129 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 130 | %endif
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| 131 |
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| 132 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 133 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
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| [238] | 134 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
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| [150] | 135 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| [181] | 136 |
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| [238] | 137 | %else ; IDE
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| 138 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH EQU IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 139 | %endif
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| 140 |
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| 141 | %ifdef MODULE_JRIDE
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| 142 | .IdentifyDriveFromJrIde:
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| 143 | jmp MemIdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| 144 | %endif
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| 145 |
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| 146 | %ifdef MODULE_SERIAL
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| [150] | 147 | .IdentifyDriveFromSerialPort:
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| 148 | jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
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| [175] | 149 | %endif
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| [150] | 150 |
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| [181] | 151 |
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| [150] | 152 | ;--------------------------------------------------------------------
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| 153 | ; Device_OutputCommandWithParameters
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| 154 | ; Parameters:
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| 155 | ; BH: Default system timer ticks for timeout (can be ignored)
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| 156 | ; BL: IDE Status Register bit to poll after command
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| [218] | 157 | ; ES:SI: Ptr to normalized buffer (for data transfer commands)
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| [150] | 158 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 159 | ; SS:BP: Ptr to IDEPACK
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| 160 | ; Returns:
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| 161 | ; AH: INT 13h Error Code
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| [249] | 162 | ; CX: Number of successfully transferred sectors (for transfer commands)
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| [150] | 163 | ; CF: Cleared if success, Set if error
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| 164 | ; Corrupts registers:
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| [249] | 165 | ; AL, BX, (CX), DX, (ES:SI for data transfer commands)
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| [150] | 166 | ;--------------------------------------------------------------------
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| [238] | 167 | %ifdef MODULE_JRIDE
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| 168 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 169 | Device_OutputCommandWithParameters:
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| [294] | 170 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
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| [238] | 171 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
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| 172 | jmp IdeCommand_OutputWithParameters
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| 173 |
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| 174 | %else ; IDE + JR-IDE/ISA
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| 175 | Device_OutputCommandWithParameters:
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| 176 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
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| 177 | jmp IdeCommand_OutputWithParameters
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| 178 | %endif
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| 179 |
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| 180 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 181 | Device_OutputCommandWithParameters:
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| [294] | 182 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
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| [150] | 183 | jmp IdeCommand_OutputWithParameters
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| [181] | 184 |
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| [238] | 185 | %else ; IDE
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| 186 | Device_OutputCommandWithParameters EQU IdeCommand_OutputWithParameters
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| 187 | %endif
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| 188 |
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| 189 | %ifdef MODULE_JRIDE
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| [150] | 190 | ALIGN JUMP_ALIGN
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| [238] | 191 | .OutputCommandToJrIDE:
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| 192 | jmp MemIdeCommand_OutputWithParameters
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| 193 | %endif
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| 194 |
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| 195 | %ifdef MODULE_SERIAL
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| 196 | ALIGN JUMP_ALIGN
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| [150] | 197 | .OutputCommandToSerialPort:
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| 198 | jmp SerialCommand_OutputWithParameters
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| [175] | 199 | %endif
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| [150] | 200 |
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| [181] | 201 |
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| [150] | 202 | ;--------------------------------------------------------------------
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| 203 | ; Device_SelectDrive
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| 204 | ; Parameters:
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| 205 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 206 | ; SS:BP: Ptr to IDEPACK
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| 207 | ; Returns:
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| 208 | ; AH: INT 13h Error Code
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| 209 | ; CF: Cleared if success, Set if error
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| 210 | ; Corrupts registers:
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| 211 | ; AL, BX, CX, DX
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| 212 | ;--------------------------------------------------------------------
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| [238] | 213 | %ifdef MODULE_JRIDE
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| 214 | %ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
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| 215 | Device_SelectDrive:
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| [294] | 216 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [238] | 217 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
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| 218 | jmp IdeCommand_SelectDrive
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| 219 |
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| 220 | %else ; IDE + JR-IDE/ISA
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| 221 | Device_SelectDrive:
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| 222 | CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
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| 223 | jmp IdeCommand_SelectDrive
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| 224 | %endif
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| 225 |
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| 226 | %elifdef MODULE_SERIAL ; IDE + Serial
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| [150] | 227 | Device_SelectDrive:
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| [294] | 228 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
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| [150] | 229 | jmp IdeCommand_SelectDrive
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| [181] | 230 |
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| [238] | 231 | %else ; IDE
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| 232 | Device_SelectDrive EQU IdeCommand_SelectDrive
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| 233 | %endif
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| 234 |
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| 235 | %ifdef MODULE_JRIDE
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| 236 | ALIGN JUMP_ALIGN
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| 237 | .SelectJrIdeDrive:
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| 238 | jmp MemIdeCommand_SelectDrive
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| 239 | %endif
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| 240 |
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| 241 | %ifdef MODULE_SERIAL
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| 242 | ALIGN JUMP_ALIGN
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| [150] | 243 | ReturnSuccessForSerialPort:
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| 244 | xor ax, ax
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| 245 | ret
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| [175] | 246 | %endif
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