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"
29 static void ide_atapi_cmd_read_dma_cb(void *opaque
, int ret
);
31 static void padstr8(uint8_t *buf
, int buf_size
, const char *src
)
34 for(i
= 0; i
< buf_size
; i
++) {
42 static inline void cpu_to_ube16(uint8_t *buf
, int val
)
48 static inline void cpu_to_ube32(uint8_t *buf
, unsigned int val
)
56 static inline int ube16_to_cpu(const uint8_t *buf
)
58 return (buf
[0] << 8) | buf
[1];
61 static inline int ube32_to_cpu(const uint8_t *buf
)
63 return (buf
[0] << 24) | (buf
[1] << 16) | (buf
[2] << 8) | buf
[3];
66 static void lba_to_msf(uint8_t *buf
, int lba
)
69 buf
[0] = (lba
/ 75) / 60;
70 buf
[1] = (lba
/ 75) % 60;
74 static inline int media_present(IDEState
*s
)
76 return !s
->tray_open
&& s
->nb_sectors
> 0;
79 /* XXX: DVDs that could fit on a CD will be reported as a CD */
80 static inline int media_is_dvd(IDEState
*s
)
82 return (media_present(s
) && s
->nb_sectors
> CD_MAX_SECTORS
);
85 static inline int media_is_cd(IDEState
*s
)
87 return (media_present(s
) && s
->nb_sectors
<= CD_MAX_SECTORS
);
90 static void cd_data_to_raw(uint8_t *buf
, int lba
)
94 memset(buf
+ 1, 0xff, 10);
99 buf
[3] = 0x01; /* mode 1 data */
103 /* XXX: ECC not computed */
107 static int cd_read_sector(IDEState
*s
, int lba
, uint8_t *buf
, int sector_size
)
111 switch(sector_size
) {
113 bdrv_acct_start(s
->bs
, &s
->acct
, 4 * BDRV_SECTOR_SIZE
, BDRV_ACCT_READ
);
114 ret
= bdrv_read(s
->bs
, (int64_t)lba
<< 2, buf
, 4);
115 bdrv_acct_done(s
->bs
, &s
->acct
);
118 bdrv_acct_start(s
->bs
, &s
->acct
, 4 * BDRV_SECTOR_SIZE
, BDRV_ACCT_READ
);
119 ret
= bdrv_read(s
->bs
, (int64_t)lba
<< 2, buf
+ 16, 4);
120 bdrv_acct_done(s
->bs
, &s
->acct
);
123 cd_data_to_raw(buf
, lba
);
132 void ide_atapi_cmd_ok(IDEState
*s
)
135 s
->status
= READY_STAT
| SEEK_STAT
;
136 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
140 void ide_atapi_cmd_error(IDEState
*s
, int sense_key
, int asc
)
142 #ifdef DEBUG_IDE_ATAPI
143 printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key
, asc
);
145 s
->error
= sense_key
<< 4;
146 s
->status
= READY_STAT
| ERR_STAT
;
147 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
148 s
->sense_key
= sense_key
;
153 void ide_atapi_io_error(IDEState
*s
, int ret
)
155 /* XXX: handle more errors */
156 if (ret
== -ENOMEDIUM
) {
157 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
158 ASC_MEDIUM_NOT_PRESENT
);
160 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
161 ASC_LOGICAL_BLOCK_OOR
);
165 /* The whole ATAPI transfer logic is handled in this function */
166 void ide_atapi_cmd_reply_end(IDEState
*s
)
168 int byte_count_limit
, size
, ret
;
169 #ifdef DEBUG_IDE_ATAPI
170 printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
171 s
->packet_transfer_size
,
172 s
->elementary_transfer_size
,
175 if (s
->packet_transfer_size
<= 0) {
176 /* end of transfer */
177 ide_transfer_stop(s
);
178 s
->status
= READY_STAT
| SEEK_STAT
;
179 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
181 #ifdef DEBUG_IDE_ATAPI
182 printf("status=0x%x\n", s
->status
);
185 /* see if a new sector must be read */
186 if (s
->lba
!= -1 && s
->io_buffer_index
>= s
->cd_sector_size
) {
187 ret
= cd_read_sector(s
, s
->lba
, s
->io_buffer
, s
->cd_sector_size
);
189 ide_transfer_stop(s
);
190 ide_atapi_io_error(s
, ret
);
194 s
->io_buffer_index
= 0;
196 if (s
->elementary_transfer_size
> 0) {
197 /* there are some data left to transmit in this elementary
199 size
= s
->cd_sector_size
- s
->io_buffer_index
;
200 if (size
> s
->elementary_transfer_size
)
201 size
= s
->elementary_transfer_size
;
202 s
->packet_transfer_size
-= size
;
203 s
->elementary_transfer_size
-= size
;
204 s
->io_buffer_index
+= size
;
205 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
- size
,
206 size
, ide_atapi_cmd_reply_end
);
208 /* a new transfer is needed */
209 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
;
210 byte_count_limit
= s
->lcyl
| (s
->hcyl
<< 8);
211 #ifdef DEBUG_IDE_ATAPI
212 printf("byte_count_limit=%d\n", byte_count_limit
);
214 if (byte_count_limit
== 0xffff)
216 size
= s
->packet_transfer_size
;
217 if (size
> byte_count_limit
) {
218 /* byte count limit must be even if this case */
219 if (byte_count_limit
& 1)
221 size
= byte_count_limit
;
225 s
->elementary_transfer_size
= size
;
226 /* we cannot transmit more than one sector at a time */
228 if (size
> (s
->cd_sector_size
- s
->io_buffer_index
))
229 size
= (s
->cd_sector_size
- s
->io_buffer_index
);
231 s
->packet_transfer_size
-= size
;
232 s
->elementary_transfer_size
-= size
;
233 s
->io_buffer_index
+= size
;
234 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
- size
,
235 size
, ide_atapi_cmd_reply_end
);
237 #ifdef DEBUG_IDE_ATAPI
238 printf("status=0x%x\n", s
->status
);
244 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
245 static void ide_atapi_cmd_reply(IDEState
*s
, int size
, int max_size
)
249 s
->lba
= -1; /* no sector read */
250 s
->packet_transfer_size
= size
;
251 s
->io_buffer_size
= size
; /* dma: send the reply data as one chunk */
252 s
->elementary_transfer_size
= 0;
253 s
->io_buffer_index
= 0;
256 bdrv_acct_start(s
->bs
, &s
->acct
, size
, BDRV_ACCT_READ
);
257 s
->status
= READY_STAT
| SEEK_STAT
| DRQ_STAT
;
258 s
->bus
->dma
->ops
->start_dma(s
->bus
->dma
, s
,
259 ide_atapi_cmd_read_dma_cb
);
261 s
->status
= READY_STAT
| SEEK_STAT
;
262 ide_atapi_cmd_reply_end(s
);
266 /* start a CD-CDROM read command */
267 static void ide_atapi_cmd_read_pio(IDEState
*s
, int lba
, int nb_sectors
,
271 s
->packet_transfer_size
= nb_sectors
* sector_size
;
272 s
->elementary_transfer_size
= 0;
273 s
->io_buffer_index
= sector_size
;
274 s
->cd_sector_size
= sector_size
;
276 s
->status
= READY_STAT
| SEEK_STAT
;
277 ide_atapi_cmd_reply_end(s
);
280 static void ide_atapi_cmd_check_status(IDEState
*s
)
282 #ifdef DEBUG_IDE_ATAPI
283 printf("atapi_cmd_check_status\n");
285 s
->error
= MC_ERR
| (SENSE_UNIT_ATTENTION
<< 4);
286 s
->status
= ERR_STAT
;
290 /* ATAPI DMA support */
292 /* XXX: handle read errors */
293 static void ide_atapi_cmd_read_dma_cb(void *opaque
, int ret
)
295 IDEState
*s
= opaque
;
299 ide_atapi_io_error(s
, ret
);
303 if (s
->io_buffer_size
> 0) {
305 * For a cdrom read sector command (s->lba != -1),
306 * adjust the lba for the next s->io_buffer_size chunk
307 * and dma the current chunk.
308 * For a command != read (s->lba == -1), just transfer
312 if (s
->cd_sector_size
== 2352) {
314 cd_data_to_raw(s
->io_buffer
, s
->lba
);
316 n
= s
->io_buffer_size
>> 11;
320 s
->packet_transfer_size
-= s
->io_buffer_size
;
321 if (s
->bus
->dma
->ops
->rw_buf(s
->bus
->dma
, 1) == 0)
325 if (s
->packet_transfer_size
<= 0) {
326 s
->status
= READY_STAT
| SEEK_STAT
;
327 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
332 s
->io_buffer_index
= 0;
333 if (s
->cd_sector_size
== 2352) {
335 s
->io_buffer_size
= s
->cd_sector_size
;
338 n
= s
->packet_transfer_size
>> 11;
339 if (n
> (IDE_DMA_BUF_SECTORS
/ 4))
340 n
= (IDE_DMA_BUF_SECTORS
/ 4);
341 s
->io_buffer_size
= n
* 2048;
345 printf("aio_read_cd: lba=%u n=%d\n", s
->lba
, n
);
348 s
->bus
->dma
->iov
.iov_base
= (void *)(s
->io_buffer
+ data_offset
);
349 s
->bus
->dma
->iov
.iov_len
= n
* 4 * 512;
350 qemu_iovec_init_external(&s
->bus
->dma
->qiov
, &s
->bus
->dma
->iov
, 1);
352 s
->bus
->dma
->aiocb
= bdrv_aio_readv(s
->bs
, (int64_t)s
->lba
<< 2,
353 &s
->bus
->dma
->qiov
, n
* 4,
354 ide_atapi_cmd_read_dma_cb
, s
);
355 if (!s
->bus
->dma
->aiocb
) {
356 /* Note: media not present is the most likely case */
357 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
358 ASC_MEDIUM_NOT_PRESENT
);
364 bdrv_acct_done(s
->bs
, &s
->acct
);
365 s
->bus
->dma
->ops
->add_status(s
->bus
->dma
, BM_STATUS_INT
);
369 /* start a CD-CDROM read command with DMA */
370 /* XXX: test if DMA is available */
371 static void ide_atapi_cmd_read_dma(IDEState
*s
, int lba
, int nb_sectors
,
375 s
->packet_transfer_size
= nb_sectors
* sector_size
;
376 s
->io_buffer_index
= 0;
377 s
->io_buffer_size
= 0;
378 s
->cd_sector_size
= sector_size
;
380 bdrv_acct_start(s
->bs
, &s
->acct
, s
->packet_transfer_size
, BDRV_ACCT_READ
);
382 /* XXX: check if BUSY_STAT should be set */
383 s
->status
= READY_STAT
| SEEK_STAT
| DRQ_STAT
| BUSY_STAT
;
384 s
->bus
->dma
->ops
->start_dma(s
->bus
->dma
, s
,
385 ide_atapi_cmd_read_dma_cb
);
388 static void ide_atapi_cmd_read(IDEState
*s
, int lba
, int nb_sectors
,
391 #ifdef DEBUG_IDE_ATAPI
392 printf("read %s: LBA=%d nb_sectors=%d\n", s
->atapi_dma
? "dma" : "pio",
396 ide_atapi_cmd_read_dma(s
, lba
, nb_sectors
, sector_size
);
398 ide_atapi_cmd_read_pio(s
, lba
, nb_sectors
, sector_size
);
402 static inline uint8_t ide_atapi_set_profile(uint8_t *buf
, uint8_t *index
,
405 uint8_t *buf_profile
= buf
+ 12; /* start of profiles */
407 buf_profile
+= ((*index
) * 4); /* start of indexed profile */
408 cpu_to_ube16 (buf_profile
, profile
);
409 buf_profile
[2] = ((buf_profile
[0] == buf
[6]) && (buf_profile
[1] == buf
[7]));
411 /* each profile adds 4 bytes to the response */
413 buf
[11] += 4; /* Additional Length */
418 static int ide_dvd_read_structure(IDEState
*s
, int format
,
419 const uint8_t *packet
, uint8_t *buf
)
422 case 0x0: /* Physical format information */
424 int layer
= packet
[6];
425 uint64_t total_sectors
;
428 return -ASC_INV_FIELD_IN_CMD_PACKET
;
430 total_sectors
= s
->nb_sectors
>> 2;
431 if (total_sectors
== 0) {
432 return -ASC_MEDIUM_NOT_PRESENT
;
435 buf
[4] = 1; /* DVD-ROM, part version 1 */
436 buf
[5] = 0xf; /* 120mm disc, minimum rate unspecified */
437 buf
[6] = 1; /* one layer, read-only (per MMC-2 spec) */
438 buf
[7] = 0; /* default densities */
440 /* FIXME: 0x30000 per spec? */
441 cpu_to_ube32(buf
+ 8, 0); /* start sector */
442 cpu_to_ube32(buf
+ 12, total_sectors
- 1); /* end sector */
443 cpu_to_ube32(buf
+ 16, total_sectors
- 1); /* l0 end sector */
445 /* Size of buffer, not including 2 byte size field */
446 cpu_to_be16wu((uint16_t *)buf
, 2048 + 2);
448 /* 2k data + 4 byte header */
452 case 0x01: /* DVD copyright information */
453 buf
[4] = 0; /* no copyright data */
454 buf
[5] = 0; /* no region restrictions */
456 /* Size of buffer, not including 2 byte size field */
457 cpu_to_be16wu((uint16_t *)buf
, 4 + 2);
459 /* 4 byte header + 4 byte data */
462 case 0x03: /* BCA information - invalid field for no BCA info */
463 return -ASC_INV_FIELD_IN_CMD_PACKET
;
465 case 0x04: /* DVD disc manufacturing information */
466 /* Size of buffer, not including 2 byte size field */
467 cpu_to_be16wu((uint16_t *)buf
, 2048 + 2);
469 /* 2k data + 4 byte header */
474 * This lists all the command capabilities above. Add new ones
475 * in order and update the length and buffer return values.
478 buf
[4] = 0x00; /* Physical format */
479 buf
[5] = 0x40; /* Not writable, is readable */
480 cpu_to_be16wu((uint16_t *)(buf
+ 6), 2048 + 4);
482 buf
[8] = 0x01; /* Copyright info */
483 buf
[9] = 0x40; /* Not writable, is readable */
484 cpu_to_be16wu((uint16_t *)(buf
+ 10), 4 + 4);
486 buf
[12] = 0x03; /* BCA info */
487 buf
[13] = 0x40; /* Not writable, is readable */
488 cpu_to_be16wu((uint16_t *)(buf
+ 14), 188 + 4);
490 buf
[16] = 0x04; /* Manufacturing info */
491 buf
[17] = 0x40; /* Not writable, is readable */
492 cpu_to_be16wu((uint16_t *)(buf
+ 18), 2048 + 4);
494 /* Size of buffer, not including 2 byte size field */
495 cpu_to_be16wu((uint16_t *)buf
, 16 + 2);
497 /* data written + 4 byte header */
500 default: /* TODO: formats beyond DVD-ROM requires */
501 return -ASC_INV_FIELD_IN_CMD_PACKET
;
505 static unsigned int event_status_media(IDEState
*s
,
508 enum media_event_code
{
509 MEC_NO_CHANGE
= 0, /* Status unchanged */
510 MEC_EJECT_REQUESTED
, /* received a request from user to eject */
511 MEC_NEW_MEDIA
, /* new media inserted and ready for access */
512 MEC_MEDIA_REMOVAL
, /* only for media changers */
513 MEC_MEDIA_CHANGED
, /* only for media changers */
514 MEC_BG_FORMAT_COMPLETED
, /* MRW or DVD+RW b/g format completed */
515 MEC_BG_FORMAT_RESTARTED
, /* MRW or DVD+RW b/g format restarted */
519 MS_MEDIA_PRESENT
= 2,
521 uint8_t event_code
, media_status
;
525 media_status
= MS_TRAY_OPEN
;
526 } else if (bdrv_is_inserted(s
->bs
)) {
527 media_status
= MS_MEDIA_PRESENT
;
530 /* Event notification descriptor */
531 event_code
= MEC_NO_CHANGE
;
532 if (media_status
!= MS_TRAY_OPEN
&& s
->events
.new_media
) {
533 event_code
= MEC_NEW_MEDIA
;
534 s
->events
.new_media
= false;
538 buf
[5] = media_status
;
540 /* These fields are reserved, just clear them. */
544 return 8; /* We wrote to 4 extra bytes from the header */
547 static void cmd_get_event_status_notification(IDEState
*s
,
550 const uint8_t *packet
= buf
;
554 uint8_t polled
; /* lsb bit is polled; others are reserved */
555 uint8_t reserved2
[2];
557 uint8_t reserved3
[2];
560 } QEMU_PACKED
*gesn_cdb
;
564 uint8_t notification_class
;
565 uint8_t supported_events
;
566 } QEMU_PACKED
*gesn_event_header
;
568 enum notification_class_request_type
{
569 NCR_RESERVED1
= 1 << 0,
570 NCR_OPERATIONAL_CHANGE
= 1 << 1,
571 NCR_POWER_MANAGEMENT
= 1 << 2,
572 NCR_EXTERNAL_REQUEST
= 1 << 3,
574 NCR_MULTI_HOST
= 1 << 5,
575 NCR_DEVICE_BUSY
= 1 << 6,
576 NCR_RESERVED2
= 1 << 7,
578 enum event_notification_class_field
{
580 ENC_OPERATIONAL_CHANGE
,
581 ENC_POWER_MANAGEMENT
,
582 ENC_EXTERNAL_REQUEST
,
588 unsigned int max_len
, used_len
;
590 gesn_cdb
= (void *)packet
;
591 gesn_event_header
= (void *)buf
;
593 max_len
= be16_to_cpu(gesn_cdb
->len
);
595 /* It is fine by the MMC spec to not support async mode operations */
596 if (!(gesn_cdb
->polled
& 0x01)) { /* asynchronous mode */
597 /* Only polling is supported, asynchronous mode is not. */
598 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
599 ASC_INV_FIELD_IN_CMD_PACKET
);
603 /* polling mode operation */
606 * These are the supported events.
608 * We currently only support requests of the 'media' type.
610 gesn_event_header
->supported_events
= NCR_MEDIA
;
613 * We use |= below to set the class field; other bits in this byte
614 * are reserved now but this is useful to do if we have to use the
615 * reserved fields later.
617 gesn_event_header
->notification_class
= 0;
620 * Responses to requests are to be based on request priority. The
621 * notification_class_request_type enum above specifies the
622 * priority: upper elements are higher prio than lower ones.
624 if (gesn_cdb
->class & NCR_MEDIA
) {
625 gesn_event_header
->notification_class
|= ENC_MEDIA
;
626 used_len
= event_status_media(s
, buf
);
628 gesn_event_header
->notification_class
= 0x80; /* No event available */
629 used_len
= sizeof(*gesn_event_header
);
631 gesn_event_header
->len
= cpu_to_be16(used_len
632 - sizeof(*gesn_event_header
));
633 ide_atapi_cmd_reply(s
, used_len
, max_len
);
636 static void cmd_request_sense(IDEState
*s
, uint8_t *buf
)
638 int max_len
= buf
[4];
641 buf
[0] = 0x70 | (1 << 7);
642 buf
[2] = s
->sense_key
;
646 if (s
->sense_key
== SENSE_UNIT_ATTENTION
) {
647 s
->sense_key
= SENSE_NONE
;
650 ide_atapi_cmd_reply(s
, 18, max_len
);
653 static void cmd_inquiry(IDEState
*s
, uint8_t *buf
)
655 int max_len
= buf
[4];
657 buf
[0] = 0x05; /* CD-ROM */
658 buf
[1] = 0x80; /* removable */
659 buf
[2] = 0x00; /* ISO */
660 buf
[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
661 buf
[4] = 31; /* additional length */
662 buf
[5] = 0; /* reserved */
663 buf
[6] = 0; /* reserved */
664 buf
[7] = 0; /* reserved */
665 padstr8(buf
+ 8, 8, "QEMU");
666 padstr8(buf
+ 16, 16, "QEMU DVD-ROM");
667 padstr8(buf
+ 32, 4, s
->version
);
668 ide_atapi_cmd_reply(s
, 36, max_len
);
671 static void cmd_get_configuration(IDEState
*s
, uint8_t *buf
)
677 /* only feature 0 is supported */
678 if (buf
[2] != 0 || buf
[3] != 0) {
679 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
680 ASC_INV_FIELD_IN_CMD_PACKET
);
684 /* XXX: could result in alignment problems in some architectures */
685 max_len
= ube16_to_cpu(buf
+ 7);
688 * XXX: avoid overflow for io_buffer if max_len is bigger than
689 * the size of that buffer (dimensioned to max number of
690 * sectors to transfer at once)
692 * Only a problem if the feature/profiles grow.
695 /* XXX: assume 1 sector */
699 memset(buf
, 0, max_len
);
701 * the number of sectors from the media tells us which profile
702 * to use as current. 0 means there is no media
704 if (media_is_dvd(s
)) {
705 cpu_to_ube16(buf
+ 6, MMC_PROFILE_DVD_ROM
);
706 } else if (media_is_cd(s
)) {
707 cpu_to_ube16(buf
+ 6, MMC_PROFILE_CD_ROM
);
710 buf
[10] = 0x02 | 0x01; /* persistent and current */
711 len
= 12; /* headers: 8 + 4 */
712 len
+= ide_atapi_set_profile(buf
, &index
, MMC_PROFILE_DVD_ROM
);
713 len
+= ide_atapi_set_profile(buf
, &index
, MMC_PROFILE_CD_ROM
);
714 cpu_to_ube32(buf
, len
- 4); /* data length */
716 ide_atapi_cmd_reply(s
, len
, max_len
);
719 static void cmd_mode_sense(IDEState
*s
, uint8_t *buf
)
724 if (buf
[0] == GPCMD_MODE_SENSE_10
) {
725 max_len
= ube16_to_cpu(buf
+ 7);
730 action
= buf
[2] >> 6;
731 code
= buf
[2] & 0x3f;
734 case 0: /* current values */
736 case GPMODE_R_W_ERROR_PAGE
: /* error recovery */
737 cpu_to_ube16(&buf
[0], 16 + 6);
753 ide_atapi_cmd_reply(s
, 16, max_len
);
755 case GPMODE_AUDIO_CTL_PAGE
:
756 cpu_to_ube16(&buf
[0], 24 + 6);
764 /* Fill with CDROM audio volume */
770 ide_atapi_cmd_reply(s
, 24, max_len
);
772 case GPMODE_CAPABILITIES_PAGE
:
773 cpu_to_ube16(&buf
[0], 28 + 6);
786 /* Claim PLAY_AUDIO capability (0x01) since some Linux
787 code checks for this to automount media. */
790 buf
[14] = (1 << 0) | (1 << 3) | (1 << 5);
791 if (s
->tray_locked
) {
795 cpu_to_ube16(&buf
[16], 706);
798 cpu_to_ube16(&buf
[20], 512);
799 cpu_to_ube16(&buf
[22], 706);
804 ide_atapi_cmd_reply(s
, 28, max_len
);
810 case 1: /* changeable values */
812 case 2: /* default values */
815 case 3: /* saved values */
816 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
817 ASC_SAVING_PARAMETERS_NOT_SUPPORTED
);
823 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
, ASC_INV_FIELD_IN_CMD_PACKET
);
826 static void cmd_test_unit_ready(IDEState
*s
, uint8_t *buf
)
828 /* Not Ready Conditions are already handled in ide_atapi_cmd(), so if we
829 * come here, we know that it's ready. */
833 static void cmd_prevent_allow_medium_removal(IDEState
*s
, uint8_t* buf
)
835 s
->tray_locked
= buf
[4] & 1;
836 bdrv_lock_medium(s
->bs
, buf
[4] & 1);
840 static void cmd_read(IDEState
*s
, uint8_t* buf
)
844 if (buf
[0] == GPCMD_READ_10
) {
845 nb_sectors
= ube16_to_cpu(buf
+ 7);
847 nb_sectors
= ube32_to_cpu(buf
+ 6);
850 lba
= ube32_to_cpu(buf
+ 2);
851 if (nb_sectors
== 0) {
856 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2048);
859 static void cmd_read_cd(IDEState
*s
, uint8_t* buf
)
861 int nb_sectors
, lba
, transfer_request
;
863 nb_sectors
= (buf
[6] << 16) | (buf
[7] << 8) | buf
[8];
864 lba
= ube32_to_cpu(buf
+ 2);
866 if (nb_sectors
== 0) {
871 transfer_request
= buf
[9];
872 switch(transfer_request
& 0xf8) {
879 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2048);
883 ide_atapi_cmd_read(s
, lba
, nb_sectors
, 2352);
886 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
887 ASC_INV_FIELD_IN_CMD_PACKET
);
892 static void cmd_seek(IDEState
*s
, uint8_t* buf
)
895 uint64_t total_sectors
= s
->nb_sectors
>> 2;
897 lba
= ube32_to_cpu(buf
+ 2);
898 if (lba
>= total_sectors
) {
899 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
, ASC_LOGICAL_BLOCK_OOR
);
906 static void cmd_start_stop_unit(IDEState
*s
, uint8_t* buf
)
909 bool start
= buf
[4] & 1;
910 bool loej
= buf
[4] & 2; /* load on start, eject on !start */
913 if (!start
&& !s
->tray_open
&& s
->tray_locked
) {
914 sense
= bdrv_is_inserted(s
->bs
)
915 ? SENSE_NOT_READY
: SENSE_ILLEGAL_REQUEST
;
916 ide_atapi_cmd_error(s
, sense
, ASC_MEDIA_REMOVAL_PREVENTED
);
919 bdrv_eject(s
->bs
, !start
);
920 s
->tray_open
= !start
;
926 static void cmd_mechanism_status(IDEState
*s
, uint8_t* buf
)
928 int max_len
= ube16_to_cpu(buf
+ 8);
930 cpu_to_ube16(buf
, 0);
936 cpu_to_ube16(buf
+ 6, 0);
937 ide_atapi_cmd_reply(s
, 8, max_len
);
940 static void cmd_read_toc_pma_atip(IDEState
*s
, uint8_t* buf
)
942 int format
, msf
, start_track
, len
;
944 uint64_t total_sectors
= s
->nb_sectors
>> 2;
946 max_len
= ube16_to_cpu(buf
+ 7);
947 format
= buf
[9] >> 6;
948 msf
= (buf
[1] >> 1) & 1;
949 start_track
= buf
[6];
953 len
= cdrom_read_toc(total_sectors
, buf
, msf
, start_track
);
956 ide_atapi_cmd_reply(s
, len
, max_len
);
959 /* multi session : only a single session defined */
964 ide_atapi_cmd_reply(s
, 12, max_len
);
967 len
= cdrom_read_toc_raw(total_sectors
, buf
, msf
, start_track
);
970 ide_atapi_cmd_reply(s
, len
, max_len
);
974 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
975 ASC_INV_FIELD_IN_CMD_PACKET
);
979 static void cmd_read_cdvd_capacity(IDEState
*s
, uint8_t* buf
)
981 uint64_t total_sectors
= s
->nb_sectors
>> 2;
983 /* NOTE: it is really the number of sectors minus 1 */
984 cpu_to_ube32(buf
, total_sectors
- 1);
985 cpu_to_ube32(buf
+ 4, 2048);
986 ide_atapi_cmd_reply(s
, 8, 8);
989 static void cmd_read_dvd_structure(IDEState
*s
, uint8_t* buf
)
996 max_len
= ube16_to_cpu(buf
+ 8);
999 if (media_is_cd(s
)) {
1000 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
1001 ASC_INCOMPATIBLE_FORMAT
);
1003 } else if (!media_present(s
)) {
1004 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
1005 ASC_INV_FIELD_IN_CMD_PACKET
);
1010 memset(buf
, 0, max_len
> IDE_DMA_BUF_SECTORS
* 512 + 4 ?
1011 IDE_DMA_BUF_SECTORS
* 512 + 4 : max_len
);
1017 ret
= ide_dvd_read_structure(s
, format
, buf
, buf
);
1020 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
, -ret
);
1022 ide_atapi_cmd_reply(s
, ret
, max_len
);
1027 /* TODO: BD support, fall through for now */
1029 /* Generic disk structures */
1030 case 0x80: /* TODO: AACS volume identifier */
1031 case 0x81: /* TODO: AACS media serial number */
1032 case 0x82: /* TODO: AACS media identifier */
1033 case 0x83: /* TODO: AACS media key block */
1034 case 0x90: /* TODO: List of recognized format layers */
1035 case 0xc0: /* TODO: Write protection status */
1037 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
1038 ASC_INV_FIELD_IN_CMD_PACKET
);
1043 static void cmd_set_speed(IDEState
*s
, uint8_t* buf
)
1045 ide_atapi_cmd_ok(s
);
1050 * Only commands flagged as ALLOW_UA are allowed to run under a
1051 * unit attention condition. (See MMC-5, section 4.1.6.1)
1056 * Commands flagged with CHECK_READY can only execute if a medium is present.
1057 * Otherwise they report the Not Ready Condition. (See MMC-5, section
1063 static const struct {
1064 void (*handler
)(IDEState
*s
, uint8_t *buf
);
1066 } atapi_cmd_table
[0x100] = {
1067 [ 0x00 ] = { cmd_test_unit_ready
, CHECK_READY
},
1068 [ 0x03 ] = { cmd_request_sense
, ALLOW_UA
},
1069 [ 0x12 ] = { cmd_inquiry
, ALLOW_UA
},
1070 [ 0x1a ] = { cmd_mode_sense
, /* (6) */ 0 },
1071 [ 0x1b ] = { cmd_start_stop_unit
, 0 }, /* [1] */
1072 [ 0x1e ] = { cmd_prevent_allow_medium_removal
, 0 },
1073 [ 0x25 ] = { cmd_read_cdvd_capacity
, CHECK_READY
},
1074 [ 0x28 ] = { cmd_read
, /* (10) */ CHECK_READY
},
1075 [ 0x2b ] = { cmd_seek
, CHECK_READY
},
1076 [ 0x43 ] = { cmd_read_toc_pma_atip
, CHECK_READY
},
1077 [ 0x46 ] = { cmd_get_configuration
, ALLOW_UA
},
1078 [ 0x4a ] = { cmd_get_event_status_notification
, ALLOW_UA
},
1079 [ 0x5a ] = { cmd_mode_sense
, /* (10) */ 0 },
1080 [ 0xa8 ] = { cmd_read
, /* (12) */ CHECK_READY
},
1081 [ 0xad ] = { cmd_read_dvd_structure
, CHECK_READY
},
1082 [ 0xbb ] = { cmd_set_speed
, 0 },
1083 [ 0xbd ] = { cmd_mechanism_status
, 0 },
1084 [ 0xbe ] = { cmd_read_cd
, CHECK_READY
},
1085 /* [1] handler detects and reports not ready condition itself */
1088 void ide_atapi_cmd(IDEState
*s
)
1093 #ifdef DEBUG_IDE_ATAPI
1096 printf("ATAPI limit=0x%x packet:", s
->lcyl
| (s
->hcyl
<< 8));
1097 for(i
= 0; i
< ATAPI_PACKET_SIZE
; i
++) {
1098 printf(" %02x", buf
[i
]);
1104 * If there's a UNIT_ATTENTION condition pending, only command flagged with
1105 * ALLOW_UA are allowed to complete. with other commands getting a CHECK
1106 * condition response unless a higher priority status, defined by the drive
1109 if (s
->sense_key
== SENSE_UNIT_ATTENTION
&&
1110 !(atapi_cmd_table
[s
->io_buffer
[0]].flags
& ALLOW_UA
)) {
1111 ide_atapi_cmd_check_status(s
);
1115 * When a CD gets changed, we have to report an ejected state and
1116 * then a loaded state to guests so that they detect tray
1117 * open/close and media change events. Guests that do not use
1118 * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
1119 * states rely on this behavior.
1121 if (!s
->tray_open
&& bdrv_is_inserted(s
->bs
) && s
->cdrom_changed
) {
1122 ide_atapi_cmd_error(s
, SENSE_NOT_READY
, ASC_MEDIUM_NOT_PRESENT
);
1124 s
->cdrom_changed
= 0;
1125 s
->sense_key
= SENSE_UNIT_ATTENTION
;
1126 s
->asc
= ASC_MEDIUM_MAY_HAVE_CHANGED
;
1130 /* Report a Not Ready condition if appropriate for the command */
1131 if ((atapi_cmd_table
[s
->io_buffer
[0]].flags
& CHECK_READY
) &&
1132 (!media_present(s
) || !bdrv_is_inserted(s
->bs
)))
1134 ide_atapi_cmd_error(s
, SENSE_NOT_READY
, ASC_MEDIUM_NOT_PRESENT
);
1138 /* Execute the command */
1139 if (atapi_cmd_table
[s
->io_buffer
[0]].handler
) {
1140 atapi_cmd_table
[s
->io_buffer
[0]].handler(s
, buf
);
1144 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
, ASC_ILLEGAL_OPCODE
);