diff options
| -rw-r--r-- | hw/scsi-disk.c | 92 |
1 files changed, 72 insertions, 20 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 2268401579..7390805d24 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -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. */ - 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). */ + { + 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] = 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) |