[150] | 1 | ; Project name : XTIDE Universal BIOS |
---|
| 2 | ; Description : Command and port direction functions for different device types. |
---|
[376] | 3 | |
---|
| 4 | ; |
---|
| 5 | ; XTIDE Universal BIOS and Associated Tools |
---|
| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team. |
---|
| 7 | ; |
---|
| 8 | ; This program is free software; you can redistribute it and/or modify |
---|
| 9 | ; it under the terms of the GNU General Public License as published by |
---|
| 10 | ; the Free Software Foundation; either version 2 of the License, or |
---|
| 11 | ; (at your option) any later version. |
---|
| 12 | ; |
---|
| 13 | ; This program is distributed in the hope that it will be useful, |
---|
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 16 | ; GNU General Public License for more details. |
---|
| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
---|
| 18 | ; |
---|
| 19 | |
---|
[150] | 20 | ; Section containing code |
---|
| 21 | SECTION .text |
---|
| 22 | |
---|
[238] | 23 | |
---|
[294] | 24 | %macro TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE 1 |
---|
[238] | 25 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE |
---|
| 26 | jnz SHORT %1 |
---|
| 27 | %endmacro |
---|
| 28 | |
---|
| 29 | %macro CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF 2 |
---|
| 30 | cmp BYTE [cs:bp+IDEVARS.bDevice], %1 |
---|
| 31 | je SHORT %2 |
---|
| 32 | %endmacro |
---|
| 33 | |
---|
| 34 | |
---|
| 35 | |
---|
[150] | 36 | ;-------------------------------------------------------------------- |
---|
| 37 | ; Device_FinalizeDPT |
---|
| 38 | ; Parameters: |
---|
| 39 | ; DS:DI: Ptr to Disk Parameter Table |
---|
| 40 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
---|
[160] | 41 | ; CS:BP: Ptr to IDEVARS for the controller |
---|
[150] | 42 | ; Returns: |
---|
| 43 | ; Nothing |
---|
| 44 | ; Corrupts registers: |
---|
| 45 | ; AX, BX, CX, DX |
---|
| 46 | ;-------------------------------------------------------------------- |
---|
[400] | 47 | %ifdef MODULE_SERIAL ; IDE + Serial |
---|
[150] | 48 | Device_FinalizeDPT: |
---|
[258] | 49 | ; needs to check IDEVARS vs. checking the DPT as the serial bit in the DPT is set in the Finalize routine |
---|
[400] | 50 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .FinalizeDptForSerialPortDevice |
---|
[150] | 51 | jmp IdeDPT_Finalize |
---|
[294] | 52 | .FinalizeDptForSerialPortDevice: |
---|
[181] | 53 | jmp SerialDPT_Finalize |
---|
[238] | 54 | |
---|
[400] | 55 | %else ; IDE |
---|
| 56 | Device_FinalizeDPT EQU IdeDPT_Finalize |
---|
[175] | 57 | %endif |
---|
[150] | 58 | |
---|
[181] | 59 | |
---|
[150] | 60 | ;-------------------------------------------------------------------- |
---|
[507] | 61 | ; Device_ResetMasterAndSlaveController |
---|
| 62 | ; Parameters: |
---|
| 63 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
---|
| 64 | ; Returns: |
---|
| 65 | ; AH: INT 13h Error Code |
---|
| 66 | ; CF: Cleared if success, Set if error |
---|
| 67 | ; Corrupts registers: |
---|
| 68 | ; AL, BX, CX, DX |
---|
| 69 | ;-------------------------------------------------------------------- |
---|
| 70 | %ifdef MODULE_SERIAL ; IDE + Serial |
---|
| 71 | Device_ResetMasterAndSlaveController: |
---|
| 72 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
---|
| 73 | jmp IdeCommand_ResetMasterAndSlaveController |
---|
| 74 | |
---|
| 75 | %else ; IDE |
---|
| 76 | Device_ResetMasterAndSlaveController EQU IdeCommand_ResetMasterAndSlaveController |
---|
| 77 | %endif |
---|
| 78 | |
---|
| 79 | |
---|
| 80 | ;-------------------------------------------------------------------- |
---|
[150] | 81 | ; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH |
---|
| 82 | ; Parameters: |
---|
| 83 | ; BH: Drive Select byte for Drive and Head Select Register |
---|
[473] | 84 | ; DX: Autodetected port (for devices that support autodetection) |
---|
[150] | 85 | ; DS: Segment to RAMVARS |
---|
[480] | 86 | ; ES:SI: Ptr to buffer to receive 512-byte IDE Information |
---|
[150] | 87 | ; CS:BP: Ptr to IDEVARS |
---|
| 88 | ; Returns: |
---|
| 89 | ; AH: INT 13h Error Code |
---|
| 90 | ; CF: Cleared if success, Set if error |
---|
| 91 | ; Corrupts registers: |
---|
[443] | 92 | ; AL, BX, CX, DX, SI, DI, ES |
---|
[150] | 93 | ;-------------------------------------------------------------------- |
---|
[400] | 94 | %ifdef MODULE_SERIAL ; IDE + Serial |
---|
[150] | 95 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH: |
---|
[400] | 96 | CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort |
---|
[150] | 97 | jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
---|
| 98 | .IdentifyDriveFromSerialPort: |
---|
| 99 | jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
---|
[400] | 100 | |
---|
| 101 | %else ; IDE |
---|
| 102 | Device_IdentifyToBufferInESSIwithDriveSelectByteInBH EQU IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH |
---|
[175] | 103 | %endif |
---|
[150] | 104 | |
---|
[181] | 105 | |
---|
[150] | 106 | ;-------------------------------------------------------------------- |
---|
| 107 | ; Device_OutputCommandWithParameters |
---|
| 108 | ; Parameters: |
---|
| 109 | ; BH: Default system timer ticks for timeout (can be ignored) |
---|
| 110 | ; BL: IDE Status Register bit to poll after command |
---|
[480] | 111 | ; ES:SI: Ptr to buffer (for data transfer commands) |
---|
[150] | 112 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
---|
| 113 | ; SS:BP: Ptr to IDEPACK |
---|
| 114 | ; Returns: |
---|
| 115 | ; AH: INT 13h Error Code |
---|
[249] | 116 | ; CX: Number of successfully transferred sectors (for transfer commands) |
---|
[150] | 117 | ; CF: Cleared if success, Set if error |
---|
| 118 | ; Corrupts registers: |
---|
[249] | 119 | ; AL, BX, (CX), DX, (ES:SI for data transfer commands) |
---|
[150] | 120 | ;-------------------------------------------------------------------- |
---|
[400] | 121 | %ifdef MODULE_SERIAL ; IDE + Serial |
---|
| 122 | ALIGN JUMP_ALIGN |
---|
[150] | 123 | Device_OutputCommandWithParameters: |
---|
[294] | 124 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort |
---|
[150] | 125 | jmp IdeCommand_OutputWithParameters |
---|
[181] | 126 | |
---|
[150] | 127 | ALIGN JUMP_ALIGN |
---|
| 128 | .OutputCommandToSerialPort: |
---|
| 129 | jmp SerialCommand_OutputWithParameters |
---|
[400] | 130 | |
---|
| 131 | %else ; IDE |
---|
| 132 | Device_OutputCommandWithParameters EQU IdeCommand_OutputWithParameters |
---|
[175] | 133 | %endif |
---|
[150] | 134 | |
---|
[181] | 135 | |
---|
[150] | 136 | ;-------------------------------------------------------------------- |
---|
| 137 | ; Device_SelectDrive |
---|
| 138 | ; Parameters: |
---|
| 139 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
---|
| 140 | ; SS:BP: Ptr to IDEPACK |
---|
| 141 | ; Returns: |
---|
| 142 | ; AH: INT 13h Error Code |
---|
| 143 | ; CF: Cleared if success, Set if error |
---|
| 144 | ; Corrupts registers: |
---|
| 145 | ; AL, BX, CX, DX |
---|
| 146 | ;-------------------------------------------------------------------- |
---|
[400] | 147 | %ifdef MODULE_SERIAL ; IDE + Serial |
---|
[150] | 148 | Device_SelectDrive: |
---|
[400] | 149 | TEST_USING_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort |
---|
[150] | 150 | jmp IdeCommand_SelectDrive |
---|
[181] | 151 | |
---|
[400] | 152 | %else ; IDE |
---|
| 153 | Device_SelectDrive EQU IdeCommand_SelectDrive |
---|
[238] | 154 | %endif |
---|
| 155 | |
---|
| 156 | |
---|
| 157 | %ifdef MODULE_SERIAL |
---|
| 158 | ALIGN JUMP_ALIGN |
---|
[150] | 159 | ReturnSuccessForSerialPort: |
---|
| 160 | xor ax, ax |
---|
| 161 | ret |
---|
[175] | 162 | %endif |
---|