Last change
on this file since 334 was
334,
checked in by gregli@…, 12 years ago
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Serial server DPT flag optimization, remove Serial/IDE specific header on drive scan results, added GNU GPL v2 banner at boot.
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File size:
1.5 KB
|
Rev | Line | |
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[150] | 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 | ; 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 | ; SerialDPT_Finalize |
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| 9 | ; Parameters: |
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| 10 | ; DS:DI: Ptr to Disk Parameter Table |
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| 11 | ; ES:SI: Ptr to 512-byte ATA information read from the drive |
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| 12 | ; Returns: |
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[258] | 13 | ; CF: Set, indicates that this is a floppy disk |
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| 14 | ; Clear, indicates that this is a hard disk |
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[150] | 15 | ; Corrupts registers: |
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[242] | 16 | ; AX |
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[150] | 17 | ;-------------------------------------------------------------------- |
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[179] | 18 | SerialDPT_Finalize: |
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[277] | 19 | mov ax, [es:si+SerialServer_ATA_wPortAndBaud] |
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[242] | 20 | mov [di+DPT_SERIAL.wSerialPortAndBaud], ax |
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[258] | 21 | |
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| 22 | ; |
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| 23 | ; Note that this section is not under %ifdef MODULE_SERIAL_FLOPPY. It is important to |
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[277] | 24 | ; distinguish floppy disks presented by the server and not treat them as hard disks, even |
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[258] | 25 | ; if the floppy support is disabled. |
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| 26 | ; |
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[334] | 27 | mov al, [es:si+SerialServer_ATA_wDriveFlags] |
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| 28 | shl al, 1 |
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| 29 | mov byte [di+DPT.bFlagsHigh], al |
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[258] | 30 | |
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[179] | 31 | ret |
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| 32 | |
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[334] | 33 | %ifndef CHECK_FOR_UNUSED_ENTRYPOINTS |
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| 34 | %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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| 35 | %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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| 36 | %endif |
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| 37 | %endif |
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