[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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