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IDE dword reads and writes reverted to original operation, fixes the last hard disk problems;

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ATAPI CD-ROM word reads no longer incorrectly discard the upper 16 bits, fixes the CD-ROM problems;
Significantly rewrote parts of the AHA-154x and BusLogic emulation, NT 3.1 RTM and MS-DOS drivers now works correctly;
The function in cdrom.c to read data blocks from the disc now correctly advances the position of the sector to read in non-passthrough mode, fixes multiblock reads from directly mounted ISO's;
Both ATAPI and SCSI now always check for Unit Attention and Not Ready on command execution.
This commit is contained in:
OBattler
2017-01-20 23:53:19 +01:00
parent b613873ff3
commit 3f612ab71a
9 changed files with 551 additions and 376 deletions
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18
src/scsi.c
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@@ -16,22 +16,6 @@
uint8_t SCSIPhase = SCSI_PHASE_BUS_FREE;
uint8_t SCSIStatus = SCSI_STATUS_OK;
int SCSICallback[16][8] = { { 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0 } };
uint8_t scsi_cdrom_id = 3; /*common setting*/
//Initialization function for the SCSI layer
@@ -41,8 +25,6 @@ void SCSIReset(uint8_t id, uint8_t lun)
if (buslogic_scsi_drive_is_cdrom(id, lun))
{
SCSICallback[id][lun] = 0;
cdrom_reset(cdrom_id);
SCSIDevices[id][lun].LunType = SCSI_CDROM;
}