1 | ; Project name : XTIDE Universal BIOS
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2 | ; Description : Sets Serial Device specific parameters to DPT.
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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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20 | ; Section containing code
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21 | SECTION .text
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22 |
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23 | ;--------------------------------------------------------------------
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24 | ; SerialDPT_Finalize
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25 | ; Parameters:
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26 | ; DS:DI: Ptr to Disk Parameter Table
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27 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
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28 | ; Returns:
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29 | ; CF: Set, indicates that this is a floppy disk
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30 | ; Clear, indicates that this is a hard disk
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31 | ; Corrupts registers:
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32 | ; AX
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33 | ;--------------------------------------------------------------------
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34 | SerialDPT_Finalize:
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35 | mov ax, [es:si+SerialServer_ATA_wPortAndBaud]
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36 | mov [di+DPT_SERIAL.wSerialPortAndBaud], ax
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37 |
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38 | ;
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39 | ; Note that this section is not under %ifdef MODULE_SERIAL_FLOPPY. It is important to
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40 | ; distinguish floppy disks presented by the server and not treat them as hard disks, even
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41 | ; if the floppy support is disabled.
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42 | ;
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43 | mov al, [es:si+SerialServer_ATA_wDriveFlags]
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44 | shl al, 1
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45 | mov byte [di+DPT.bFlagsHigh], al
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46 |
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47 | ret
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48 |
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49 | %ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
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50 | %if FLGH_DPT_SERIAL_DEVICE != 0x4 || FLGH_DPT_SERIAL_FLOPPY != 0x10 || FLGH_DPT_SERIAL_FLOPPY_TYPE_MASK != 0xe0 || FLGH_DPT_SERIAL_FLOPPY_TYPE_FIELD_POSITION != 5
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51 | %error "The serial server passes FLGH values into SerialDPT_Finalize directly. If the flag positions are changed, corresponding changes will need to be made in the serial server, and likely a version check put in to deal with servers talking to incompatible clients"
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52 | %endif
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53 | %endif
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