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nscsi_cd: minor fixes (nw)

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* correct inquiry with missing lun behaviour
* return error on mode sense for unsupported page
This commit is contained in:
Patrick Mackinlay 2019-01-22 19:16:48 +07:00
parent 966251cc35
commit 6e361ab9ff
1 changed files with 20 additions and 14 deletions
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34
src/devices/machine/nscsi_cd.cpp
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@ -202,21 +202,16 @@ void nscsi_cdrom_device::scsi_command()
* is returned with sense data ILLEGAL REQUEST and LOGICAL UNIT NOT
* SUPPORTED.
*/
if(lun) {
bad_lun();
return;
}
int page = scsi_cmdbuf[2];
int size = scsi_cmdbuf[4];
switch(page) {
case 0:
std::fill_n(scsi_cmdbuf, 36, 0);
// vendor and product information must be padded with spaces
std::fill_n(&scsi_cmdbuf[8], 28, 0x20);
scsi_cmdbuf[0] = 0x05; // device is present, device is CD/DVD (MMC-3)
if (lun != 0)
scsi_cmdbuf[0] = 0x7f;
else
scsi_cmdbuf[0] = 0x05; // device is present, device is CD/DVD (MMC-3)
scsi_cmdbuf[1] = 0x80; // media is removable
scsi_cmdbuf[2] = compliance; // device complies with SPC-3 standard
scsi_cmdbuf[3] = 0x02; // response data format = SPC-3 standard
@ -225,6 +220,8 @@ void nscsi_cdrom_device::scsi_command()
strncpy((char *)&scsi_cmdbuf[8], manufacturer, 8);
strncpy((char *)&scsi_cmdbuf[16], product, 16);
strncpy((char *)&scsi_cmdbuf[32], revision, 4);
// vendor and product information must be padded with spaces
for(int i = 8; i < 36; i++)
if(scsi_cmdbuf[i] == 0)
scsi_cmdbuf[i] = 0x20;
@ -321,10 +318,11 @@ void nscsi_cdrom_device::scsi_command()
scsi_cmdbuf[pos++] = (bytes_per_block>>8)&0xff;
scsi_cmdbuf[pos++] = (bytes_per_block & 0xff);
bool fail = false;
int pmax = page == 0x3f ? 0x3e : page;
int pmin = page == 0x3f ? 0x00 : page;
for(int page=pmax; page >= pmin; page--) {
switch(page) {
for(int p=pmax; p >= pmin; p--) {
switch(p) {
case 0x00: // Vendor specific (does not require page format)
scsi_cmdbuf[pos++] = 0x80; // PS, page id
scsi_cmdbuf[pos++] = 0x02; // Page length
@ -352,7 +350,10 @@ void nscsi_cdrom_device::scsi_command()
break;
default:
LOG("mode sense page %02x unhandled\n", page);
if (page != 0x3f) {
LOG("mode sense page %02x unhandled\n", p);
fail = true;
}
break;
}
}
@ -360,8 +361,13 @@ void nscsi_cdrom_device::scsi_command()
if(pos > size)
pos = size;
scsi_data_in(0, pos);
scsi_status_complete(SS_GOOD);
if (!fail) {
scsi_data_in(0, pos);
scsi_status_complete(SS_GOOD);
} else {
scsi_status_complete(SS_CHECK_CONDITION);
sense(false, SK_ILLEGAL_REQUEST, SK_ASC_INVALID_FIELD_IN_CDB);
}
break;
}