1 | ; Project name : XTIDE Universal BIOS |
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2 | ; Description : Int 13h function AH=11h, Recalibrate. |
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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 | ; Int 13h function AH=11h, Recalibrate. |
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9 | ; |
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10 | ; AH11h_HandlerForRecalibrate |
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11 | ; Parameters: |
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12 | ; DL: Translated Drive number |
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13 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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14 | ; SS:BP: Ptr to IDEREGS_AND_INTPACK |
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15 | ; Returns with INTPACK: |
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16 | ; AH: BIOS Error code |
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17 | ; CF: 0 if successful, 1 if error |
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18 | ;-------------------------------------------------------------------- |
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19 | AH11h_HandlerForRecalibrate: |
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20 | %ifndef USE_186 |
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21 | call AH11h_RecalibrateDrive |
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22 | jmp Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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23 | %else |
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24 | push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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25 | ; Fall to AH11h_RecalibrateDrive |
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26 | %endif |
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27 | |
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28 | |
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29 | ;-------------------------------------------------------------------- |
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30 | ; AH11h_HRecalibrate |
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31 | ; Parameters: |
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32 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
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33 | ; SS:BP: Ptr to IDEREGS_AND_INTPACK |
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34 | ; Returns: |
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35 | ; AH: BIOS Error code |
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36 | ; CF: 0 if successful, 1 if error |
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37 | ; Corrupts registers: |
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38 | ; AL, BX, CX, DX |
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39 | ;-------------------------------------------------------------------- |
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40 | AH11h_RecalibrateDrive: |
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41 | ; Recalibrate command is optional, vendor specific and not even |
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42 | ; supported on later ATA-standards. Let's do seek instead. |
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43 | mov cx, 1 ; Seek to Cylinder 0, Sector 1 |
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44 | xor dh, dh ; Head 0 |
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45 | jmp AHCh_SeekToCylinder |
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