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Fixed MODE SELECT commands with either only block descriptor header or unexpected end of buffer, fixes Adaptec SCSI CD-ROM drivers for DOS.

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This commit is contained in:
OBattler
2018-11-02 20:03:55 +01:00
parent 1898ceceb5
commit 381456ece5
4 changed files with 22 additions and 20 deletions
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24
src/scsi/scsi_cdrom.c
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@@ -9,7 +9,7 @@
* Implementation of the CD-ROM drive with SCSI(-like)
* commands, for both ATAPI and SCSI usage.
*
* Version: @(#)scsi_cdrom.c 1.0.67 2018/10/31
* Version: @(#)scsi_cdrom.c 1.0.68 2018/11/02
*
* Author: Miran Grca, <mgrca8@gmail.com>
*
@@ -383,19 +383,6 @@ scsi_cdrom_current_mode(scsi_cdrom_t *dev)
}
/* Translates ATAPI status (ERR_STAT flag) to SCSI status. */
int
scsi_cdrom_err_stat_to_scsi(scsi_common_t *sc)
{
scsi_cdrom_t *dev = (scsi_cdrom_t *) sc;
if (dev->status & ERR_STAT)
return SCSI_STATUS_CHECK_CONDITION;
else
return SCSI_STATUS_OK;
}
/* Translates ATAPI phase (DRQ, I/O, C/D) to SCSI phase (MSG, C/D, I/O). */
int
scsi_cdrom_atapi_phase_to_scsi(scsi_cdrom_t *dev)
@@ -2426,13 +2413,18 @@ scsi_cdrom_phase_data_out(scsi_common_t *sc)
pos = hdr_len + block_desc_len;
while(1) {
if (pos >= dev->current_cdb[4]) {
scsi_cdrom_log("CD-ROM %i: Buffer has only block descriptor\n", dev->id);
break;
}
page = dev->buffer[pos] & 0x3F;
page_len = dev->buffer[pos + 1];
pos += 2;
if (!(scsi_cdrom_mode_sense_page_flags & (1LL << ((uint64_t) page)))) {
scsi_cdrom_log("Unimplemented page %02X\n", page);
scsi_cdrom_log("CD-ROM %i: Unimplemented page %02X\n", dev->id, page);
error |= 1;
} else {
for (i = 0; i < page_len; i++) {
@@ -2443,7 +2435,7 @@ scsi_cdrom_phase_data_out(scsi_common_t *sc)
if (ch)
dev->ms_pages_saved.pages[page][i + 2] = val;
else {
scsi_cdrom_log("Unchangeable value on position %02X on page %02X\n", i + 2, page);
scsi_cdrom_log("CD-ROM %i: Unchangeable value on position %02X on page %02X\n", dev->id, i + 2, page);
error |= 1;
}
}