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More SCSI commands (Blue Swirl).

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1948 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2006-06-03 14:23:34 +00:00
parent 9f149aa9c1
commit 17acfe326c
1 changed files with 72 additions and 20 deletions
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92
hw/scsi-disk.c
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@ -213,7 +213,7 @@ int32_t scsi_send_command(SCSIDevice *s, uint32_t tag, uint8_t *buf, int lun)
cmdlen = 12;
break;
default:
BADF("Unsupported command length\n");
BADF("Unsupported command length, command %x\n", s->command);
goto fail;
}
#ifdef DEBUG_SCSI
@ -260,7 +260,9 @@ int32_t scsi_send_command(SCSIDevice *s, uint32_t tag, uint8_t *buf, int lun)
}
memcpy(&s->buf[8], "QEMU ", 8);
memcpy(&s->buf[32], QEMU_VERSION, 4);
s->buf[2] = 3; /* SCSI-3 */
/* Identify device as SCSI-3 rev 1.
Some later commands are also implemented. */
s->buf[2] = 3;
s->buf[3] = 2; /* Format 2 */
s->buf[4] = 32;
s->buf_len = 36;
@ -277,27 +279,69 @@ int32_t scsi_send_command(SCSIDevice *s, uint32_t tag, uint8_t *buf, int lun)
break;
case 0x1a:
case 0x5a:
DPRINTF("Mode Sense (page %d, len %d)\n", buf[2], len);
if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
memset(s->buf, 0, 4);
s->buf[0] = 4; /* Mode data length. */
{
char *p;
int page;
page = buf[2] & 0x3f;
DPRINTF("Mode Sense (page %d, len %d)\n", page, len);
p = s->buf;
memset(p, 0, 4);
s->buf[1] = 0; /* Default media type. */
s->buf[2] = 0x80; /* Readonly. */
s->buf[3] = 0; /* Block descriptor length. */
} else {
memset(s->buf, 0, 0x16);
s->buf[0] = 0x16; /* Mode data length (4 + 0x12). */
s->buf[1] = 0; /* Default media type. */
s->buf[2] = 0; /* Write enabled. */
s->buf[3] = 0; /* Block descriptor length. */
/* Caching page. */
s->buf[4 + 0] = 8;
s->buf[4 + 1] = 0x12;
s->buf[4 + 2] = 4; /* WCE */
if (len > 0x16)
len = 0x16;
if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
s->buf[2] = 0x80; /* Readonly. */
}
p += 4;
if ((page == 8 || page == 0x3f)) {
/* Caching page. */
p[0] = 8;
p[1] = 0x12;
p[2] = 4; /* WCE */
p += 19;
}
if ((page == 0x3f || page == 0x2a)
&& (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM)) {
/* CD Capabilities and Mechanical Status page. */
p[0] = 0x2a;
p[1] = 0x14;
p[2] = 3; // CD-R & CD-RW read
p[3] = 0; // Writing not supported
p[4] = 0x7f; /* Audio, composite, digital out,
mode 2 form 1&2, multi session */
p[5] = 0xff; /* CD DA, DA accurate, RW supported,
RW corrected, C2 errors, ISRC,
UPC, Bar code */
p[6] = 0x2d | (bdrv_is_locked(s->bdrv)? 2 : 0);
/* Locking supported, jumper present, eject, tray */
p[7] = 0; /* no volume & mute control, no
changer */
p[8] = (50 * 176) >> 8; // 50x read speed
p[9] = (50 * 176) & 0xff;
p[10] = 0 >> 8; // No volume
p[11] = 0 & 0xff;
p[12] = 2048 >> 8; // 2M buffer
p[13] = 2048 & 0xff;
p[14] = (16 * 176) >> 8; // 16x read speed current
p[15] = (16 * 176) & 0xff;
p[18] = (16 * 176) >> 8; // 16x write speed
p[19] = (16 * 176) & 0xff;
p[20] = (16 * 176) >> 8; // 16x write speed current
p[21] = (16 * 176) & 0xff;
p += 21;
}
s->buf_len = p - s->buf;
s->buf[0] = s->buf_len - 4;
if (s->buf_len > len)
s->buf_len = len;
}
s->buf_len = len;
break;
case 0x1b:
DPRINTF("Start Stop Unit\n");
break;
case 0x1e:
DPRINTF("Prevent Allow Medium Removal (prevent = %d)\n", buf[4] & 3);
bdrv_set_locked(s->bdrv, buf[4] & 1);
break;
case 0x25:
DPRINTF("Read Capacity\n");
@ -368,6 +412,14 @@ int32_t scsi_send_command(SCSIDevice *s, uint32_t tag, uint8_t *buf, int lun)
DPRINTF("Read TOC error\n");
goto fail;
}
case 0x46:
DPRINTF("Get Configuration (rt %d, maxlen %d)\n", buf[1] & 3, len);
memset(s->buf, 0, 8);
/* ??? This shoud probably return much more information. For now
just return the basic header indicating the CD-ROM profile. */
s->buf[7] = 8; // CD-ROM
s->buf_len = 8;
break;
case 0x56:
DPRINTF("Reserve(10)\n");
if (buf[1] & 3)