4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include "hw/ide/internal.h"
27 #include "hw/scsi/scsi.h"
28 #include "sysemu/block-backend.h"
30 static void ide_atapi_cmd_read_dma_cb(void *opaque
, int ret
);
32 static void padstr8(uint8_t *buf
, int buf_size
, const char *src
)
35 for(i
= 0; i
< buf_size
; i
++) {
43 static inline void cpu_to_ube16(uint8_t *buf
, int val
)
49 static inline void cpu_to_ube32(uint8_t *buf
, unsigned int val
)
57 static inline int ube16_to_cpu(const uint8_t *buf
)
59 return (buf
[0] << 8) | buf
[1];
62 static inline int ube32_to_cpu(const uint8_t *buf
)
64 return (buf
[0] << 24) | (buf
[1] << 16) | (buf
[2] << 8) | buf
[3];
67 static void lba_to_msf(uint8_t *buf
, int lba
)
70 buf
[0] = (lba
/ 75) / 60;
71 buf
[1] = (lba
/ 75) % 60;
75 static inline int media_present(IDEState
*s
)
77 return !s
->tray_open
&& s
->nb_sectors
> 0;
80 /* XXX: DVDs that could fit on a CD will be reported as a CD */
81 static inline int media_is_dvd(IDEState
*s
)
83 return (media_present(s
) && s
->nb_sectors
> CD_MAX_SECTORS
);
86 static inline int media_is_cd(IDEState
*s
)
88 return (media_present(s
) && s
->nb_sectors
<= CD_MAX_SECTORS
);
91 static void cd_data_to_raw(uint8_t *buf
, int lba
)
95 memset(buf
+ 1, 0xff, 10);
100 buf
[3] = 0x01; /* mode 1 data */
104 /* XXX: ECC not computed */
108 static int cd_read_sector(IDEState
*s
, int lba
, uint8_t *buf
, int sector_size
)
111 block_acct_start(blk_get_stats(s
->blk
), &s
->acct
,
112 4 * BDRV_SECTOR_SIZE
, BLOCK_ACCT_READ
);
114 switch(sector_size
) {
116 ret
= blk_read(s
->blk
, (int64_t)lba
<< 2, buf
, 4);
119 ret
= blk_read(s
->blk
, (int64_t)lba
<< 2, buf
+ 16, 4);
121 cd_data_to_raw(buf
, lba
);
125 block_acct_invalid(blk_get_stats(s
->blk
), BLOCK_ACCT_READ
);
130 block_acct_failed(blk_get_stats(s
->blk
), &s
->acct
);
132 block_acct_done(blk_get_stats(s
->blk
), &s
->acct
);
138 void ide_atapi_cmd_ok(IDEState
*s
)
141 s
->status
= READY_STAT
| SEEK_STAT
;
142 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
143 ide_transfer_stop(s
);
147 void ide_atapi_cmd_error(IDEState
*s
, int sense_key
, int asc
)
149 #ifdef DEBUG_IDE_ATAPI
150 printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key
, asc
);
152 s
->error
= sense_key
<< 4;
153 s
->status
= READY_STAT
| ERR_STAT
;
154 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
155 s
->sense_key
= sense_key
;
157 ide_transfer_stop(s
);
161 void ide_atapi_io_error(IDEState
*s
, int ret
)
163 /* XXX: handle more errors */
164 if (ret
== -ENOMEDIUM
) {
165 ide_atapi_cmd_error(s
, NOT_READY
,
166 ASC_MEDIUM_NOT_PRESENT
);
168 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
169 ASC_LOGICAL_BLOCK_OOR
);
173 static uint16_t atapi_byte_count_limit(IDEState
*s
)
177 bcl
= s
->lcyl
| (s
->hcyl
<< 8);
184 /* The whole ATAPI transfer logic is handled in this function */
185 void ide_atapi_cmd_reply_end(IDEState
*s
)
187 int byte_count_limit
, size
, ret
;
188 #ifdef DEBUG_IDE_ATAPI
189 printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
190 s
->packet_transfer_size
,
191 s
->elementary_transfer_size
,
194 if (s
->packet_transfer_size
<= 0) {
195 /* end of transfer */
198 #ifdef DEBUG_IDE_ATAPI
199 printf("status=0x%x\n", s
->status
);
202 /* see if a new sector must be read */
203 if (s
->lba
!= -1 && s
->io_buffer_index
>= s
->cd_sector_size
) {
204 ret
= cd_read_sector(s
, s
->lba
, s
->io_buffer
, s
->cd_sector_size
);
206 ide_atapi_io_error(s
, ret
);
210 s
->io_buffer_index
= 0;
212 if (s
->elementary_transfer_size
> 0) {
213 /* there are some data left to transmit in this elementary
215 size
= s
->cd_sector_size
- s
->io_buffer_index
;
216 if (size
> s
->elementary_transfer_size
)
217 size
= s
->elementary_transfer_size
;
218 s
->packet_transfer_size
-= size
;
219 s
->elementary_transfer_size
-= size
;
220 s
->io_buffer_index
+= size
;
221 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
- size
,
222 size
, ide_atapi_cmd_reply_end
);
224 /* a new transfer is needed */
225 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
;
226 byte_count_limit
= atapi_byte_count_limit(s
);
227 #ifdef DEBUG_IDE_ATAPI
228 printf("byte_count_limit=%d\n", byte_count_limit
);
230 size
= s
->packet_transfer_size
;
231 if (size
> byte_count_limit
) {
232 /* byte count limit must be even if this case */
233 if (byte_count_limit
& 1)
235 size
= byte_count_limit
;
239 s
->elementary_transfer_size
= size
;
240 /* we cannot transmit more than one sector at a time */
242 if (size
> (s
->cd_sector_size
- s
->io_buffer_index
))
243 size
= (s
->cd_sector_size
- s
->io_buffer_index
);
245 s
->packet_transfer_size
-= size
;
246 s
->elementary_transfer_size
-= size
;
247 s
->io_buffer_index
+= size
;
248 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
- size
,
249 size
, ide_atapi_cmd_reply_end
);
251 #ifdef DEBUG_IDE_ATAPI
252 printf("status=0x%x\n", s
->status
);
258 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
259 static void ide_atapi_cmd_reply(IDEState
*s
, int size
, int max_size
)
263 s
->lba
= -1; /* no sector read */
264 s
->packet_transfer_size
= size
;
265 s
->io_buffer_size
= size
; /* dma: send the reply data as one chunk */
266 s
->elementary_transfer_size
= 0;
269 block_acct_start(blk_get_stats(s
->blk
), &s
->acct
, size
,
271 s
->status
= READY_STAT
| SEEK_STAT
| DRQ_STAT
;
272 ide_start_dma(s
, ide_atapi_cmd_read_dma_cb
);
274 s
->status
= READY_STAT
| SEEK_STAT
;
275 s
->io_buffer_index
= 0;
276 ide_atapi_cmd_reply_end(s
);
280 /* start a CD-CDROM read command */
281 static void ide_atapi_cmd_read_pio(IDEState
*s
, int lba
, int nb_sectors
,
285 s
->packet_transfer_size
= nb_sectors
* sector_size
;
286 s
->elementary_transfer_size
= 0;
287 s
->io_buffer_index
= sector_size
;
288 s
->cd_sector_size
= sector_size
;
290 s
->status
= READY_STAT
| SEEK_STAT
;
291 ide_atapi_cmd_reply_end(s
);
294 static void ide_atapi_cmd_check_status(IDEState
*s
)
296 #ifdef DEBUG_IDE_ATAPI
297 printf("atapi_cmd_check_status\n");
299 s
->error
= MC_ERR
| (UNIT_ATTENTION
<< 4);
300 s
->status
= ERR_STAT
;
304 /* ATAPI DMA support */
306 /* XXX: handle read errors */
307 static void ide_atapi_cmd_read_dma_cb(void *opaque
, int ret
)
309 IDEState
*s
= opaque
;
313 ide_atapi_io_error(s
, ret
);
317 if (s
->io_buffer_size
> 0) {
319 * For a cdrom read sector command (s->lba != -1),
320 * adjust the lba for the next s->io_buffer_size chunk
321 * and dma the current chunk.
322 * For a command != read (s->lba == -1), just transfer
326 if (s
->cd_sector_size
== 2352) {
328 cd_data_to_raw(s
->io_buffer
, s
->lba
);
330 n
= s
->io_buffer_size
>> 11;
334 s
->packet_transfer_size
-= s
->io_buffer_size
;
335 if (s
->bus
->dma
->ops
->rw_buf(s
->bus
->dma
, 1) == 0)
339 if (s
->packet_transfer_size
<= 0) {
340 s
->status
= READY_STAT
| SEEK_STAT
;
341 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
346 s
->io_buffer_index
= 0;
347 if (s
->cd_sector_size
== 2352) {
349 s
->io_buffer_size
= s
->cd_sector_size
;
352 n
= s
->packet_transfer_size
>> 11;
353 if (n
> (IDE_DMA_BUF_SECTORS
/ 4))
354 n
= (IDE_DMA_BUF_SECTORS
/ 4);
355 s
->io_buffer_size
= n
* 2048;
359 printf("aio_read_cd: lba=%u n=%d\n", s
->lba
, n
);
362 s
->bus
->dma
->iov
.iov_base
= (void *)(s
->io_buffer
+ data_offset
);
363 s
->bus
->dma
->iov
.iov_len
= n
* 4 * 512;
364 qemu_iovec_init_external(&s
->bus
->dma
->qiov
, &s
->bus
->dma
->iov
, 1);
366 s
->bus
->dma
->aiocb
= blk_aio_readv(s
->blk
, (int64_t)s
->lba
<< 2,
367 &s
->bus
->dma
->qiov
, n
* 4,
368 ide_atapi_cmd_read_dma_cb
, s
);
373 block_acct_failed(blk_get_stats(s
->blk
), &s
->acct
);
375 block_acct_done(blk_get_stats(s
->blk
), &s
->acct
);
377 ide_set_inactive(s
, false);
380 /* start a CD-CDROM read command with DMA */
381 /* XXX: test if DMA is available */
382 static void ide_atapi_cmd_read_dma(IDEState
*s
, int lba
, int nb_sectors
,
386 s
->packet_transfer_size
= nb_sectors
* sector_size
;
387 s
->io_buffer_size
= 0;
388 s
->cd_sector_size
= sector_size
;
390 block_acct_start(blk_get_stats(s
->blk
), &s
->acct
, s
->packet_transfer_size
,
393 /* XXX: check if BUSY_STAT should be set */
394 s
->status
= READY_STAT
| SEEK_STAT
| DRQ_STAT
| BUSY_STAT
;
395 ide_start_dma(s
, ide_atapi_cmd_read_dma_cb
);
398 static void ide_atapi_cmd_read(IDEState
*s
, int lba
, int nb_sectors
,
401 #ifdef DEBUG_IDE_ATAPI
402 printf("read %s: LBA=%d nb_sectors=%d\n", s
->atapi_dma
? "dma" : "pio",
406 ide_atapi_cmd_read_dma(s
, lba
, nb_sectors
, sector_size
);
408 ide_atapi_cmd_read_pio(s
, lba
, nb_sectors
, sector_size
);
413 /* Called by *_restart_bh when the transfer function points
416 void ide_atapi_dma_restart(IDEState
*s
)
419 * I'm not sure we have enough stored to restart the command
420 * safely, so give the guest an error it should recover from.
421 * I'm assuming most guests will try to recover from something
422 * listed as a medium error on a CD; it seems to work on Linux.
423 * This would be more of a problem if we did any other type of
426 ide_atapi_cmd_error(s
, MEDIUM_ERROR
, ASC_NO_SEEK_COMPLETE
);
429 static inline uint8_t ide_atapi_set_profile(uint8_t *buf
, uint8_t *index
,
432 uint8_t *buf_profile
= buf
+ 12; /* start of profiles */
434 buf_profile
+= ((*index
) * 4); /* start of indexed profile */
435 cpu_to_ube16 (buf_profile
, profile
);
436 buf_profile
[2] = ((buf_profile
[0] == buf
[6]) && (buf_profile
[1] == buf
[7]));
438 /* each profile adds 4 bytes to the response */
440 buf
[11] += 4; /* Additional Length */
445 static int ide_dvd_read_structure(IDEState
*s
, int format
,
446 const uint8_t *packet
, uint8_t *buf
)
449 case 0x0: /* Physical format information */
451 int layer
= packet
[6];
452 uint64_t total_sectors
;
455 return -ASC_INV_FIELD_IN_CMD_PACKET
;
457 total_sectors
= s
->nb_sectors
>> 2;
458 if (total_sectors
== 0) {
459 return -ASC_MEDIUM_NOT_PRESENT
;
462 buf
[4] = 1; /* DVD-ROM, part version 1 */
463 buf
[5] = 0xf; /* 120mm disc, minimum rate unspecified */
464 buf
[6] = 1; /* one layer, read-only (per MMC-2 spec) */
465 buf
[7] = 0; /* default densities */
467 /* FIXME: 0x30000 per spec? */
468 cpu_to_ube32(buf
+ 8, 0); /* start sector */
469 cpu_to_ube32(buf
+ 12, total_sectors
- 1); /* end sector */
470 cpu_to_ube32(buf
+ 16, total_sectors
- 1); /* l0 end sector */
472 /* Size of buffer, not including 2 byte size field */
473 stw_be_p(buf
, 2048 + 2);
475 /* 2k data + 4 byte header */
479 case 0x01: /* DVD copyright information */
480 buf
[4] = 0; /* no copyright data */
481 buf
[5] = 0; /* no region restrictions */
483 /* Size of buffer, not including 2 byte size field */
484 stw_be_p(buf
, 4 + 2);
486 /* 4 byte header + 4 byte data */
489 case 0x03: /* BCA information - invalid field for no BCA info */
490 return -ASC_INV_FIELD_IN_CMD_PACKET
;
492 case 0x04: /* DVD disc manufacturing information */
493 /* Size of buffer, not including 2 byte size field */
494 stw_be_p(buf
, 2048 + 2);
496 /* 2k data + 4 byte header */
501 * This lists all the command capabilities above. Add new ones
502 * in order and update the length and buffer return values.
505 buf
[4] = 0x00; /* Physical format */
506 buf
[5] = 0x40; /* Not writable, is readable */
507 stw_be_p(buf
+ 6, 2048 + 4);
509 buf
[8] = 0x01; /* Copyright info */
510 buf
[9] = 0x40; /* Not writable, is readable */
511 stw_be_p(buf
+ 10, 4 + 4);
513 buf
[12] = 0x03; /* BCA info */
514 buf
[13] = 0x40; /* Not writable, is readable */
515 stw_be_p(buf
+ 14, 188 + 4);
517 buf
[16] = 0x04; /* Manufacturing info */
518 buf
[17] = 0x40; /* Not writable, is readable */
519 stw_be_p(buf
+ 18, 2048 + 4);
521 /* Size of buffer, not including 2 byte size field */
522 stw_be_p(buf
, 16 + 2);
524 /* data written + 4 byte header */
527 default: /* TODO: formats beyond DVD-ROM requires */
528 return -ASC_INV_FIELD_IN_CMD_PACKET
;
532 static unsigned int event_status_media(IDEState
*s
,
535 uint8_t event_code
, media_status
;
539 media_status
= MS_TRAY_OPEN
;
540 } else if (blk_is_inserted(s
->blk
)) {
541 media_status
= MS_MEDIA_PRESENT
;
544 /* Event notification descriptor */
545 event_code
= MEC_NO_CHANGE
;
546 if (media_status
!= MS_TRAY_OPEN
) {
547 if (s
->events
.new_media
) {
548 event_code
= MEC_NEW_MEDIA
;
549 s
->events
.new_media
= false;
550 } else if (s
->events
.eject_request
) {
551 event_code
= MEC_EJECT_REQUESTED
;
552 s
->events
.eject_request
= false;
557 buf
[5] = media_status
;
559 /* These fields are reserved, just clear them. */
563 return 8; /* We wrote to 4 extra bytes from the header */
566 static void cmd_get_event_status_notification(IDEState
*s
,
569 const uint8_t *packet
= buf
;
573 uint8_t polled
; /* lsb bit is polled; others are reserved */
574 uint8_t reserved2
[2];
576 uint8_t reserved3
[2];
579 } QEMU_PACKED
*gesn_cdb
;
583 uint8_t notification_class
;
584 uint8_t supported_events
;
585 } QEMU_PACKED
*gesn_event_header
;
586 unsigned int max_len
, used_len
;
588 gesn_cdb
= (void *)packet
;
589 gesn_event_header
= (void *)buf
;
591 max_len
= be16_to_cpu(gesn_cdb
->len
);
593 /* It is fine by the MMC spec to not support async mode operations */
594 if (!(gesn_cdb
->polled
& 0x01)) { /* asynchronous mode */
595 /* Only polling is supported, asynchronous mode is not. */
596 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
597 ASC_INV_FIELD_IN_CMD_PACKET
);
601 /* polling mode operation */
604 * These are the supported events.
606 * We currently only support requests of the 'media' type.
607 * Notification class requests and supported event classes are bitmasks,
608 * but they are build from the same values as the "notification class"
611 gesn_event_header
->supported_events
= 1 << GESN_MEDIA
;
614 * We use |= below to set the class field; other bits in this byte
615 * are reserved now but this is useful to do if we have to use the
616 * reserved fields later.
618 gesn_event_header
->notification_class
= 0;
621 * Responses to requests are to be based on request priority. The
622 * notification_class_request_type enum above specifies the
623 * priority: upper elements are higher prio than lower ones.
625 if (gesn_cdb
->class & (1 << GESN_MEDIA
)) {
626 gesn_event_header
->notification_class
|= GESN_MEDIA
;
627 used_len
= event_status_media(s
, buf
);
629 gesn_event_header
->notification_class
= 0x80; /* No event available */
630 used_len
= sizeof(*gesn_event_header
);
632 gesn_event_header
->len
= cpu_to_be16(used_len
633 - sizeof(*gesn_event_header
));
634 ide_atapi_cmd_reply(s
, used_len
, max_len
);
637 static void cmd_request_sense(IDEState
*s
, uint8_t *buf
)
639 int max_len
= buf
[4];
642 buf
[0] = 0x70 | (1 << 7);
643 buf
[2] = s
->sense_key
;
647 if (s
->sense_key
== UNIT_ATTENTION
) {
648 s
->sense_key
= NO_SENSE
;
651 ide_atapi_cmd_reply(s
, 18, max_len
);
654 static void cmd_inquiry(IDEState
*s
, uint8_t *buf
)
656 uint8_t page_code
= buf
[2];
657 int max_len
= buf
[4];
661 unsigned preamble_len
;
663 /* If the EVPD (Enable Vital Product Data) bit is set in byte 1,
664 * we are being asked for a specific page of info indicated by byte 2. */
669 buf
[idx
++] = 0x05; /* CD-ROM */
670 buf
[idx
++] = page_code
; /* Page Code */
671 buf
[idx
++] = 0x00; /* reserved */
672 idx
++; /* length (set later) */
676 /* Supported Pages: List of supported VPD responses. */
677 buf
[idx
++] = 0x00; /* 0x00: Supported Pages, and: */
678 buf
[idx
++] = 0x83; /* 0x83: Device Identification. */
682 /* Device Identification. Each entry is optional, but the entries
683 * included here are modeled after libata's VPD responses.
684 * If the response is given, at least one entry must be present. */
686 /* Entry 1: Serial */
687 if (idx
+ 24 > max_len
) {
688 /* Not enough room for even the first entry: */
689 /* 4 byte header + 20 byte string */
690 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
691 ASC_DATA_PHASE_ERROR
);
694 buf
[idx
++] = 0x02; /* Ascii */
695 buf
[idx
++] = 0x00; /* Vendor Specific */
697 buf
[idx
++] = 20; /* Remaining length */
698 padstr8(buf
+ idx
, 20, s
->drive_serial_str
);
701 /* Entry 2: Drive Model and Serial */
702 if (idx
+ 72 > max_len
) {
703 /* 4 (header) + 8 (vendor) + 60 (model & serial) */
706 buf
[idx
++] = 0x02; /* Ascii */
707 buf
[idx
++] = 0x01; /* T10 Vendor */
710 padstr8(buf
+ idx
, 8, "ATA"); /* Generic T10 vendor */
712 padstr8(buf
+ idx
, 40, s
->drive_model_str
);
714 padstr8(buf
+ idx
, 20, s
->drive_serial_str
);
718 if (s
->wwn
&& (idx
+ 12 <= max_len
)) {
719 /* 4 byte header + 8 byte wwn */
720 buf
[idx
++] = 0x01; /* Binary */
721 buf
[idx
++] = 0x03; /* NAA */
724 stq_be_p(&buf
[idx
], s
->wwn
);
730 /* SPC-3, revision 23 sec. 6.4 */
731 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
732 ASC_INV_FIELD_IN_CMD_PACKET
);
739 buf
[0] = 0x05; /* CD-ROM */
740 buf
[1] = 0x80; /* removable */
741 buf
[2] = 0x00; /* ISO */
742 buf
[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
743 /* buf[size_idx] set below. */
744 buf
[5] = 0; /* reserved */
745 buf
[6] = 0; /* reserved */
746 buf
[7] = 0; /* reserved */
747 padstr8(buf
+ 8, 8, "QEMU");
748 padstr8(buf
+ 16, 16, "QEMU DVD-ROM");
749 padstr8(buf
+ 32, 4, s
->version
);
754 buf
[size_idx
] = idx
- preamble_len
;
755 ide_atapi_cmd_reply(s
, idx
, max_len
);
759 static void cmd_get_configuration(IDEState
*s
, uint8_t *buf
)
765 /* only feature 0 is supported */
766 if (buf
[2] != 0 || buf
[3] != 0) {
767 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
768 ASC_INV_FIELD_IN_CMD_PACKET
);
772 /* XXX: could result in alignment problems in some architectures */
773 max_len
= ube16_to_cpu(buf
+ 7);
776 * XXX: avoid overflow for io_buffer if max_len is bigger than
777 * the size of that buffer (dimensioned to max number of
778 * sectors to transfer at once)
780 * Only a problem if the feature/profiles grow.
783 /* XXX: assume 1 sector */
787 memset(buf
, 0, max_len
);
789 * the number of sectors from the media tells us which profile
790 * to use as current. 0 means there is no media
792 if (media_is_dvd(s
)) {
793 cpu_to_ube16(buf
+ 6, MMC_PROFILE_DVD_ROM
);
794 } else if (media_is_cd(s
)) {
795 cpu_to_ube16(buf
+ 6, MMC_PROFILE_CD_ROM
);
798 buf
[10] = 0x02 | 0x01; /* persistent and current */
799 len
= 12; /* headers: 8 + 4 */
800 len
+= ide_atapi_set_profile(buf
, &index
, MMC_PROFILE_DVD_ROM
);
801 len
+= ide_atapi_set_profile(buf
, &index
, MMC_PROFILE_CD_ROM
);
802 cpu_to_ube32(buf
, len
- 4); /* data length */
804 ide_atapi_cmd_reply(s
, len
, max_len
);
807 static void cmd_mode_sense(IDEState
*s
, uint8_t *buf
)
812 max_len
= ube16_to_cpu(buf
+ 7);
813 action
= buf
[2] >> 6;
814 code
= buf
[2] & 0x3f;
817 case 0: /* current values */
819 case MODE_PAGE_R_W_ERROR
: /* error recovery */
820 cpu_to_ube16(&buf
[0], 16 - 2);
828 buf
[8] = MODE_PAGE_R_W_ERROR
;
836 ide_atapi_cmd_reply(s
, 16, max_len
);
838 case MODE_PAGE_AUDIO_CTL
:
839 cpu_to_ube16(&buf
[0], 24 - 2);
847 buf
[8] = MODE_PAGE_AUDIO_CTL
;
849 /* Fill with CDROM audio volume */
855 ide_atapi_cmd_reply(s
, 24, max_len
);
857 case MODE_PAGE_CAPABILITIES
:
858 cpu_to_ube16(&buf
[0], 30 - 2);
866 buf
[8] = MODE_PAGE_CAPABILITIES
;
868 buf
[10] = 0x3b; /* read CDR/CDRW/DVDROM/DVDR/DVDRAM */
871 /* Claim PLAY_AUDIO capability (0x01) since some Linux
872 code checks for this to automount media. */
875 buf
[14] = (1 << 0) | (1 << 3) | (1 << 5);
876 if (s
->tray_locked
) {
879 buf
[15] = 0x00; /* No volume & mute control, no changer */
880 cpu_to_ube16(&buf
[16], 704); /* 4x read speed */
881 buf
[18] = 0; /* Two volume levels */
883 cpu_to_ube16(&buf
[20], 512); /* 512k buffer */
884 cpu_to_ube16(&buf
[22], 704); /* 4x read speed current */
891 ide_atapi_cmd_reply(s
, 30, max_len
);
897 case 1: /* changeable values */
899 case 2: /* default values */
902 case 3: /* saved values */
903 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
904 ASC_SAVING_PARAMETERS_NOT_SUPPORTED
);
910 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
, ASC_INV_FIELD_IN_CMD_PACKET
);
913 static void cmd_test_unit_ready(IDEState
*s
, uint8_t *buf
)
915 /* Not Ready Conditions are already handled in ide_atapi_cmd(), so if we
916 * come here, we know that it's ready. */
920 static void cmd_prevent_allow_medium_removal(IDEState
*s
, uint8_t* buf
)
922 s
->tray_locked
= buf
[4] & 1;
923 blk_lock_medium(s
->blk
, buf
[4] & 1);
927 static void cmd_read(IDEState
*s
, uint8_t* buf
)
931 if (buf
[0] == GPCMD_READ_10
) {
932 nb_sectors
= ube16_to_cpu(buf
+ 7);
934 nb_sectors
= ube32_to_cpu(buf
+ 6);
937 lba
= ube32_to_cpu(buf
+ 2);
938 if (nb_sectors
== 0) {
943 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2048);
946 static void cmd_read_cd(IDEState
*s
, uint8_t* buf
)
948 int nb_sectors
, lba
, transfer_request
;
950 nb_sectors
= (buf
[6] << 16) | (buf
[7] << 8) | buf
[8];
951 lba
= ube32_to_cpu(buf
+ 2);
953 if (nb_sectors
== 0) {
958 transfer_request
= buf
[9];
959 switch(transfer_request
& 0xf8) {
966 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2048);
970 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2352);
973 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
974 ASC_INV_FIELD_IN_CMD_PACKET
);
979 static void cmd_seek(IDEState
*s
, uint8_t* buf
)
982 uint64_t total_sectors
= s
->nb_sectors
>> 2;
984 lba
= ube32_to_cpu(buf
+ 2);
985 if (lba
>= total_sectors
) {
986 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
, ASC_LOGICAL_BLOCK_OOR
);
993 static void cmd_start_stop_unit(IDEState
*s
, uint8_t* buf
)
996 bool start
= buf
[4] & 1;
997 bool loej
= buf
[4] & 2; /* load on start, eject on !start */
998 int pwrcnd
= buf
[4] & 0xf0;
1001 /* eject/load only happens for power condition == 0 */
1002 ide_atapi_cmd_ok(s
);
1007 if (!start
&& !s
->tray_open
&& s
->tray_locked
) {
1008 sense
= blk_is_inserted(s
->blk
)
1009 ? NOT_READY
: ILLEGAL_REQUEST
;
1010 ide_atapi_cmd_error(s
, sense
, ASC_MEDIA_REMOVAL_PREVENTED
);
1014 if (s
->tray_open
!= !start
) {
1015 blk_eject(s
->blk
, !start
);
1016 s
->tray_open
= !start
;
1020 ide_atapi_cmd_ok(s
);
1023 static void cmd_mechanism_status(IDEState
*s
, uint8_t* buf
)
1025 int max_len
= ube16_to_cpu(buf
+ 8);
1027 cpu_to_ube16(buf
, 0);
1028 /* no current LBA */
1033 cpu_to_ube16(buf
+ 6, 0);
1034 ide_atapi_cmd_reply(s
, 8, max_len
);
1037 static void cmd_read_toc_pma_atip(IDEState
*s
, uint8_t* buf
)
1039 int format
, msf
, start_track
, len
;
1041 uint64_t total_sectors
= s
->nb_sectors
>> 2;
1043 max_len
= ube16_to_cpu(buf
+ 7);
1044 format
= buf
[9] >> 6;
1045 msf
= (buf
[1] >> 1) & 1;
1046 start_track
= buf
[6];
1050 len
= cdrom_read_toc(total_sectors
, buf
, msf
, start_track
);
1053 ide_atapi_cmd_reply(s
, len
, max_len
);
1056 /* multi session : only a single session defined */
1061 ide_atapi_cmd_reply(s
, 12, max_len
);
1064 len
= cdrom_read_toc_raw(total_sectors
, buf
, msf
, start_track
);
1067 ide_atapi_cmd_reply(s
, len
, max_len
);
1071 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
1072 ASC_INV_FIELD_IN_CMD_PACKET
);
1076 static void cmd_read_cdvd_capacity(IDEState
*s
, uint8_t* buf
)
1078 uint64_t total_sectors
= s
->nb_sectors
>> 2;
1080 /* NOTE: it is really the number of sectors minus 1 */
1081 cpu_to_ube32(buf
, total_sectors
- 1);
1082 cpu_to_ube32(buf
+ 4, 2048);
1083 ide_atapi_cmd_reply(s
, 8, 8);
1086 static void cmd_read_disc_information(IDEState
*s
, uint8_t* buf
)
1088 uint8_t type
= buf
[1] & 7;
1089 uint32_t max_len
= ube16_to_cpu(buf
+ 7);
1091 /* Types 1/2 are only defined for Blu-Ray. */
1093 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
1094 ASC_INV_FIELD_IN_CMD_PACKET
);
1100 buf
[2] = 0xe; /* last session complete, disc finalized */
1101 buf
[3] = 1; /* first track on disc */
1102 buf
[4] = 1; /* # of sessions */
1103 buf
[5] = 1; /* first track of last session */
1104 buf
[6] = 1; /* last track of last session */
1105 buf
[7] = 0x20; /* unrestricted use */
1106 buf
[8] = 0x00; /* CD-ROM or DVD-ROM */
1107 /* 9-10-11: most significant byte corresponding bytes 4-5-6 */
1108 /* 12-23: not meaningful for CD-ROM or DVD-ROM */
1109 /* 24-31: disc bar code */
1110 /* 32: disc application code */
1111 /* 33: number of OPC tables */
1113 ide_atapi_cmd_reply(s
, 34, max_len
);
1116 static void cmd_read_dvd_structure(IDEState
*s
, uint8_t* buf
)
1120 int format
= buf
[7];
1123 max_len
= ube16_to_cpu(buf
+ 8);
1125 if (format
< 0xff) {
1126 if (media_is_cd(s
)) {
1127 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
1128 ASC_INCOMPATIBLE_FORMAT
);
1130 } else if (!media_present(s
)) {
1131 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
1132 ASC_INV_FIELD_IN_CMD_PACKET
);
1137 memset(buf
, 0, max_len
> IDE_DMA_BUF_SECTORS
* 512 + 4 ?
1138 IDE_DMA_BUF_SECTORS
* 512 + 4 : max_len
);
1144 ret
= ide_dvd_read_structure(s
, format
, buf
, buf
);
1147 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
, -ret
);
1149 ide_atapi_cmd_reply(s
, ret
, max_len
);
1154 /* TODO: BD support, fall through for now */
1156 /* Generic disk structures */
1157 case 0x80: /* TODO: AACS volume identifier */
1158 case 0x81: /* TODO: AACS media serial number */
1159 case 0x82: /* TODO: AACS media identifier */
1160 case 0x83: /* TODO: AACS media key block */
1161 case 0x90: /* TODO: List of recognized format layers */
1162 case 0xc0: /* TODO: Write protection status */
1164 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
,
1165 ASC_INV_FIELD_IN_CMD_PACKET
);
1170 static void cmd_set_speed(IDEState
*s
, uint8_t* buf
)
1172 ide_atapi_cmd_ok(s
);
1177 * Only commands flagged as ALLOW_UA are allowed to run under a
1178 * unit attention condition. (See MMC-5, section 4.1.6.1)
1183 * Commands flagged with CHECK_READY can only execute if a medium is present.
1184 * Otherwise they report the Not Ready Condition. (See MMC-5, section
1190 * Commands flagged with NONDATA do not in any circumstances return
1191 * any data via ide_atapi_cmd_reply. These commands are exempt from
1192 * the normal byte_count_limit constraints.
1193 * See ATA8-ACS3 "7.21.5 Byte Count Limit"
1198 static const struct AtapiCmd
{
1199 void (*handler
)(IDEState
*s
, uint8_t *buf
);
1201 } atapi_cmd_table
[0x100] = {
1202 [ 0x00 ] = { cmd_test_unit_ready
, CHECK_READY
| NONDATA
},
1203 [ 0x03 ] = { cmd_request_sense
, ALLOW_UA
},
1204 [ 0x12 ] = { cmd_inquiry
, ALLOW_UA
},
1205 [ 0x1b ] = { cmd_start_stop_unit
, NONDATA
}, /* [1] */
1206 [ 0x1e ] = { cmd_prevent_allow_medium_removal
, NONDATA
},
1207 [ 0x25 ] = { cmd_read_cdvd_capacity
, CHECK_READY
},
1208 [ 0x28 ] = { cmd_read
, /* (10) */ CHECK_READY
},
1209 [ 0x2b ] = { cmd_seek
, CHECK_READY
| NONDATA
},
1210 [ 0x43 ] = { cmd_read_toc_pma_atip
, CHECK_READY
},
1211 [ 0x46 ] = { cmd_get_configuration
, ALLOW_UA
},
1212 [ 0x4a ] = { cmd_get_event_status_notification
, ALLOW_UA
},
1213 [ 0x51 ] = { cmd_read_disc_information
, CHECK_READY
},
1214 [ 0x5a ] = { cmd_mode_sense
, /* (10) */ 0 },
1215 [ 0xa8 ] = { cmd_read
, /* (12) */ CHECK_READY
},
1216 [ 0xad ] = { cmd_read_dvd_structure
, CHECK_READY
},
1217 [ 0xbb ] = { cmd_set_speed
, NONDATA
},
1218 [ 0xbd ] = { cmd_mechanism_status
, 0 },
1219 [ 0xbe ] = { cmd_read_cd
, CHECK_READY
},
1220 /* [1] handler detects and reports not ready condition itself */
1223 void ide_atapi_cmd(IDEState
*s
)
1225 uint8_t *buf
= s
->io_buffer
;
1226 const struct AtapiCmd
*cmd
= &atapi_cmd_table
[s
->io_buffer
[0]];
1228 #ifdef DEBUG_IDE_ATAPI
1231 printf("ATAPI limit=0x%x packet:", s
->lcyl
| (s
->hcyl
<< 8));
1232 for(i
= 0; i
< ATAPI_PACKET_SIZE
; i
++) {
1233 printf(" %02x", buf
[i
]);
1240 * If there's a UNIT_ATTENTION condition pending, only command flagged with
1241 * ALLOW_UA are allowed to complete. with other commands getting a CHECK
1242 * condition response unless a higher priority status, defined by the drive
1245 if (s
->sense_key
== UNIT_ATTENTION
&& !(cmd
->flags
& ALLOW_UA
)) {
1246 ide_atapi_cmd_check_status(s
);
1250 * When a CD gets changed, we have to report an ejected state and
1251 * then a loaded state to guests so that they detect tray
1252 * open/close and media change events. Guests that do not use
1253 * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
1254 * states rely on this behavior.
1256 if (!(cmd
->flags
& ALLOW_UA
) &&
1257 !s
->tray_open
&& blk_is_inserted(s
->blk
) && s
->cdrom_changed
) {
1259 if (s
->cdrom_changed
== 1) {
1260 ide_atapi_cmd_error(s
, NOT_READY
, ASC_MEDIUM_NOT_PRESENT
);
1261 s
->cdrom_changed
= 2;
1263 ide_atapi_cmd_error(s
, UNIT_ATTENTION
, ASC_MEDIUM_MAY_HAVE_CHANGED
);
1264 s
->cdrom_changed
= 0;
1270 /* Report a Not Ready condition if appropriate for the command */
1271 if ((cmd
->flags
& CHECK_READY
) &&
1272 (!media_present(s
) || !blk_is_inserted(s
->blk
)))
1274 ide_atapi_cmd_error(s
, NOT_READY
, ASC_MEDIUM_NOT_PRESENT
);
1278 /* Nondata commands permit the byte_count_limit to be 0.
1279 * If this is a data-transferring PIO command and BCL is 0,
1280 * we abort at the /ATA/ level, not the ATAPI level.
1281 * See ATA8 ACS3 section 7.17.6.49 and 7.21.5 */
1282 if (cmd
->handler
&& !(cmd
->flags
& NONDATA
)) {
1283 /* TODO: Check IDENTIFY data word 125 for default BCL (currently 0) */
1284 if (!(atapi_byte_count_limit(s
) || s
->atapi_dma
)) {
1285 /* TODO: Move abort back into core.c and make static inline again */
1286 ide_abort_command(s
);
1291 /* Execute the command */
1293 cmd
->handler(s
, buf
);
1297 ide_atapi_cmd_error(s
, ILLEGAL_REQUEST
, ASC_ILLEGAL_OPCODE
);