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Added a few keyboard controller commands used by the AMI BIOS'es;

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The port 92 handler in mem.c now flushes MMU cache when toggling the A20 gate;
Added ability to reload previous disc after ejecting it;
Fixed the START/STOP UNIT command for both SCSI and ATAPI;
Applied mainline PCem commit: All XT models can now use 64kb RAM. Patch from ecksemmess .
This commit is contained in:
OBattler
2017-01-04 05:58:44 +01:00
parent ba14ea32b6
commit 6af40b5b16
8 changed files with 215 additions and 63 deletions
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45
src/ide.c
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@@ -1819,9 +1819,9 @@ static void atapicommand(int ide_board)
int real_pos;
int track = 0;
#if 0
pclog("ATAPI command 0x%02X, Sense Key %02X, Asc %02X, Ascq %02X, %i, Unit attention: %i\n",idebufferb[0],SCSISense.SenseKey,SCSISense.Asc,SCSISense.Ascq,ins,SCSISense.UnitAttention);
#if 0
int CdbLength;
for (CdbLength = 1; CdbLength < 12; CdbLength++)
{
@@ -2576,23 +2576,30 @@ static void atapicommand(int ide_board)
break;
case GPCMD_START_STOP_UNIT:
if ((idebufferb[4] != 2) && (idebufferb[4] != 3) && idebufferb[4])
switch(idebufferb[4] & 3)
{
atapi_illegal_opcode(ide);
break;
}
if (!idebufferb[4])
{
cdrom->stop();
}
else if (idebufferb[4]==2)
{
cdrom->eject();
}
else
{
cdrom->load();
case 0: /* Stop the disc. */
cdrom->stop();
break;
case 1: /* Start the disc and read the TOC. */
cdrom->medium_changed(); /* This causes a TOC reload. */
break;
case 2: /* Eject the disc if possible. */
cdrom->stop();
#ifndef __unix
win_cdrom_eject();
#endif
break;
case 3: /* Load the disc (close tray). */
#ifndef __unix
win_cdrom_reload();
#else
cdrom->load();
#endif
break;
}
ide->packetstatus = ATAPI_STATUS_COMPLETE;
idecallback[ide_board]=50*IDE_TIME;
break;
@@ -2674,6 +2681,10 @@ static void atapicommand(int ide_board)
atapi_out:
idebufferb[size_idx] = idx - preamble_len;
len=idx;
if (len > alloc_length)
{
len = alloc_length;
}
atapi_command_send_init(ide, temp_command, len, alloc_length);
@@ -2743,6 +2754,8 @@ atapi_out:
atapi_illegal_opcode(ide);
break;
}
pclog("SCSI phase: %02X, length: %i\n", ide->secount, ide->cylinder);
}
static void callnonreadcd(IDE *ide) /* Callabck for non-Read CD commands */