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)
112 switch(sector_size) {
114 block_acct_start(blk_get_stats(s->blk), &s->acct,
115 4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
116 ret = blk_read(s->blk, (int64_t)lba << 2, buf, 4);
117 block_acct_done(blk_get_stats(s->blk), &s->acct);
120 block_acct_start(blk_get_stats(s->blk), &s->acct,
121 4 * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
122 ret = blk_read(s->blk, (int64_t)lba << 2, buf + 16, 4);
123 block_acct_done(blk_get_stats(s->blk), &s->acct);
126 cd_data_to_raw(buf, lba);
135 void ide_atapi_cmd_ok(IDEState *s)
138 s->status = READY_STAT | SEEK_STAT;
139 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
140 ide_transfer_stop(s);
144 void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc)
146 #ifdef DEBUG_IDE_ATAPI
147 printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
149 s->error = sense_key << 4;
150 s->status = READY_STAT | ERR_STAT;
151 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
152 s->sense_key = sense_key;
154 ide_transfer_stop(s);
158 void ide_atapi_io_error(IDEState *s, int ret)
160 /* XXX: handle more errors */
161 if (ret == -ENOMEDIUM) {
162 ide_atapi_cmd_error(s, NOT_READY,
163 ASC_MEDIUM_NOT_PRESENT);
165 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
166 ASC_LOGICAL_BLOCK_OOR);
170 /* The whole ATAPI transfer logic is handled in this function */
171 void ide_atapi_cmd_reply_end(IDEState *s)
173 int byte_count_limit, size, ret;
174 #ifdef DEBUG_IDE_ATAPI
175 printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
176 s->packet_transfer_size,
177 s->elementary_transfer_size,
180 if (s->packet_transfer_size <= 0) {
181 /* end of transfer */
184 #ifdef DEBUG_IDE_ATAPI
185 printf("status=0x%x\n", s->status);
188 /* see if a new sector must be read */
189 if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) {
190 ret = cd_read_sector(s, s->lba, s->io_buffer, s->cd_sector_size);
192 ide_atapi_io_error(s, ret);
196 s->io_buffer_index = 0;
198 if (s->elementary_transfer_size > 0) {
199 /* there are some data left to transmit in this elementary
201 size = s->cd_sector_size - s->io_buffer_index;
202 if (size > s->elementary_transfer_size)
203 size = s->elementary_transfer_size;
204 s->packet_transfer_size -= size;
205 s->elementary_transfer_size -= size;
206 s->io_buffer_index += size;
207 ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size,
208 size, ide_atapi_cmd_reply_end);
210 /* a new transfer is needed */
211 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
212 byte_count_limit = s->lcyl | (s->hcyl << 8);
213 #ifdef DEBUG_IDE_ATAPI
214 printf("byte_count_limit=%d\n", byte_count_limit);
216 if (byte_count_limit == 0xffff)
218 size = s->packet_transfer_size;
219 if (size > byte_count_limit) {
220 /* byte count limit must be even if this case */
221 if (byte_count_limit & 1)
223 size = byte_count_limit;
227 s->elementary_transfer_size = size;
228 /* we cannot transmit more than one sector at a time */
230 if (size > (s->cd_sector_size - s->io_buffer_index))
231 size = (s->cd_sector_size - s->io_buffer_index);
233 s->packet_transfer_size -= size;
234 s->elementary_transfer_size -= size;
235 s->io_buffer_index += size;
236 ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size,
237 size, ide_atapi_cmd_reply_end);
239 #ifdef DEBUG_IDE_ATAPI
240 printf("status=0x%x\n", s->status);
246 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
247 static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
251 s->lba = -1; /* no sector read */
252 s->packet_transfer_size = size;
253 s->io_buffer_size = size; /* dma: send the reply data as one chunk */
254 s->elementary_transfer_size = 0;
255 s->io_buffer_index = 0;
258 block_acct_start(blk_get_stats(s->blk), &s->acct, size,
260 s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
261 ide_start_dma(s, ide_atapi_cmd_read_dma_cb);
263 s->status = READY_STAT | SEEK_STAT;
264 ide_atapi_cmd_reply_end(s);
268 /* start a CD-CDROM read command */
269 static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors,
273 s->packet_transfer_size = nb_sectors * sector_size;
274 s->elementary_transfer_size = 0;
275 s->io_buffer_index = sector_size;
276 s->cd_sector_size = sector_size;
278 s->status = READY_STAT | SEEK_STAT;
279 ide_atapi_cmd_reply_end(s);
282 static void ide_atapi_cmd_check_status(IDEState *s)
284 #ifdef DEBUG_IDE_ATAPI
285 printf("atapi_cmd_check_status\n");
287 s->error = MC_ERR | (UNIT_ATTENTION << 4);
288 s->status = ERR_STAT;
292 /* ATAPI DMA support */
294 /* XXX: handle read errors */
295 static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret)
297 IDEState *s = opaque;
301 ide_atapi_io_error(s, ret);
305 if (s->io_buffer_size > 0) {
307 * For a cdrom read sector command (s->lba != -1),
308 * adjust the lba for the next s->io_buffer_size chunk
309 * and dma the current chunk.
310 * For a command != read (s->lba == -1), just transfer
314 if (s->cd_sector_size == 2352) {
316 cd_data_to_raw(s->io_buffer, s->lba);
318 n = s->io_buffer_size >> 11;
322 s->packet_transfer_size -= s->io_buffer_size;
323 if (s->bus->dma->ops->rw_buf(s->bus->dma, 1) == 0)
327 if (s->packet_transfer_size <= 0) {
328 s->status = READY_STAT | SEEK_STAT;
329 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
334 s->io_buffer_index = 0;
335 if (s->cd_sector_size == 2352) {
337 s->io_buffer_size = s->cd_sector_size;
340 n = s->packet_transfer_size >> 11;
341 if (n > (IDE_DMA_BUF_SECTORS / 4))
342 n = (IDE_DMA_BUF_SECTORS / 4);
343 s->io_buffer_size = n * 2048;
347 printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
350 s->bus->dma->iov.iov_base = (void *)(s->io_buffer + data_offset);
351 s->bus->dma->iov.iov_len = n * 4 * 512;
352 qemu_iovec_init_external(&s->bus->dma->qiov, &s->bus->dma->iov, 1);
354 s->bus->dma->aiocb = blk_aio_readv(s->blk, (int64_t)s->lba << 2,
355 &s->bus->dma->qiov, n * 4,
356 ide_atapi_cmd_read_dma_cb, s);
360 block_acct_done(blk_get_stats(s->blk), &s->acct);
361 ide_set_inactive(s, false);
364 /* start a CD-CDROM read command with DMA */
365 /* XXX: test if DMA is available */
366 static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors,
370 s->packet_transfer_size = nb_sectors * sector_size;
371 s->io_buffer_index = 0;
372 s->io_buffer_size = 0;
373 s->cd_sector_size = sector_size;
375 block_acct_start(blk_get_stats(s->blk), &s->acct, s->packet_transfer_size,
378 /* XXX: check if BUSY_STAT should be set */
379 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
380 ide_start_dma(s, ide_atapi_cmd_read_dma_cb);
383 static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors,
386 #ifdef DEBUG_IDE_ATAPI
387 printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio",
391 ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size);
393 ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size);
397 static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index,
400 uint8_t *buf_profile = buf + 12; /* start of profiles */
402 buf_profile += ((*index) * 4); /* start of indexed profile */
403 cpu_to_ube16 (buf_profile, profile);
404 buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7]));
406 /* each profile adds 4 bytes to the response */
408 buf[11] += 4; /* Additional Length */
413 static int ide_dvd_read_structure(IDEState *s, int format,
414 const uint8_t *packet, uint8_t *buf)
417 case 0x0: /* Physical format information */
419 int layer = packet[6];
420 uint64_t total_sectors;
423 return -ASC_INV_FIELD_IN_CMD_PACKET;
425 total_sectors = s->nb_sectors >> 2;
426 if (total_sectors == 0) {
427 return -ASC_MEDIUM_NOT_PRESENT;
430 buf[4] = 1; /* DVD-ROM, part version 1 */
431 buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */
432 buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */
433 buf[7] = 0; /* default densities */
435 /* FIXME: 0x30000 per spec? */
436 cpu_to_ube32(buf + 8, 0); /* start sector */
437 cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */
438 cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */
440 /* Size of buffer, not including 2 byte size field */
441 stw_be_p(buf, 2048 + 2);
443 /* 2k data + 4 byte header */
447 case 0x01: /* DVD copyright information */
448 buf[4] = 0; /* no copyright data */
449 buf[5] = 0; /* no region restrictions */
451 /* Size of buffer, not including 2 byte size field */
452 stw_be_p(buf, 4 + 2);
454 /* 4 byte header + 4 byte data */
457 case 0x03: /* BCA information - invalid field for no BCA info */
458 return -ASC_INV_FIELD_IN_CMD_PACKET;
460 case 0x04: /* DVD disc manufacturing information */
461 /* Size of buffer, not including 2 byte size field */
462 stw_be_p(buf, 2048 + 2);
464 /* 2k data + 4 byte header */
469 * This lists all the command capabilities above. Add new ones
470 * in order and update the length and buffer return values.
473 buf[4] = 0x00; /* Physical format */
474 buf[5] = 0x40; /* Not writable, is readable */
475 stw_be_p(buf + 6, 2048 + 4);
477 buf[8] = 0x01; /* Copyright info */
478 buf[9] = 0x40; /* Not writable, is readable */
479 stw_be_p(buf + 10, 4 + 4);
481 buf[12] = 0x03; /* BCA info */
482 buf[13] = 0x40; /* Not writable, is readable */
483 stw_be_p(buf + 14, 188 + 4);
485 buf[16] = 0x04; /* Manufacturing info */
486 buf[17] = 0x40; /* Not writable, is readable */
487 stw_be_p(buf + 18, 2048 + 4);
489 /* Size of buffer, not including 2 byte size field */
490 stw_be_p(buf, 16 + 2);
492 /* data written + 4 byte header */
495 default: /* TODO: formats beyond DVD-ROM requires */
496 return -ASC_INV_FIELD_IN_CMD_PACKET;
500 static unsigned int event_status_media(IDEState *s,
503 uint8_t event_code, media_status;
507 media_status = MS_TRAY_OPEN;
508 } else if (blk_is_inserted(s->blk)) {
509 media_status = MS_MEDIA_PRESENT;
512 /* Event notification descriptor */
513 event_code = MEC_NO_CHANGE;
514 if (media_status != MS_TRAY_OPEN) {
515 if (s->events.new_media) {
516 event_code = MEC_NEW_MEDIA;
517 s->events.new_media = false;
518 } else if (s->events.eject_request) {
519 event_code = MEC_EJECT_REQUESTED;
520 s->events.eject_request = false;
525 buf[5] = media_status;
527 /* These fields are reserved, just clear them. */
531 return 8; /* We wrote to 4 extra bytes from the header */
534 static void cmd_get_event_status_notification(IDEState *s,
537 const uint8_t *packet = buf;
541 uint8_t polled; /* lsb bit is polled; others are reserved */
542 uint8_t reserved2[2];
544 uint8_t reserved3[2];
547 } QEMU_PACKED *gesn_cdb;
551 uint8_t notification_class;
552 uint8_t supported_events;
553 } QEMU_PACKED *gesn_event_header;
554 unsigned int max_len, used_len;
556 gesn_cdb = (void *)packet;
557 gesn_event_header = (void *)buf;
559 max_len = be16_to_cpu(gesn_cdb->len);
561 /* It is fine by the MMC spec to not support async mode operations */
562 if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */
563 /* Only polling is supported, asynchronous mode is not. */
564 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
565 ASC_INV_FIELD_IN_CMD_PACKET);
569 /* polling mode operation */
572 * These are the supported events.
574 * We currently only support requests of the 'media' type.
575 * Notification class requests and supported event classes are bitmasks,
576 * but they are build from the same values as the "notification class"
579 gesn_event_header->supported_events = 1 << GESN_MEDIA;
582 * We use |= below to set the class field; other bits in this byte
583 * are reserved now but this is useful to do if we have to use the
584 * reserved fields later.
586 gesn_event_header->notification_class = 0;
589 * Responses to requests are to be based on request priority. The
590 * notification_class_request_type enum above specifies the
591 * priority: upper elements are higher prio than lower ones.
593 if (gesn_cdb->class & (1 << GESN_MEDIA)) {
594 gesn_event_header->notification_class |= GESN_MEDIA;
595 used_len = event_status_media(s, buf);
597 gesn_event_header->notification_class = 0x80; /* No event available */
598 used_len = sizeof(*gesn_event_header);
600 gesn_event_header->len = cpu_to_be16(used_len
601 - sizeof(*gesn_event_header));
602 ide_atapi_cmd_reply(s, used_len, max_len);
605 static void cmd_request_sense(IDEState *s, uint8_t *buf)
607 int max_len = buf[4];
610 buf[0] = 0x70 | (1 << 7);
611 buf[2] = s->sense_key;
615 if (s->sense_key == UNIT_ATTENTION) {
616 s->sense_key = NO_SENSE;
619 ide_atapi_cmd_reply(s, 18, max_len);
622 static void cmd_inquiry(IDEState *s, uint8_t *buf)
624 uint8_t page_code = buf[2];
625 int max_len = buf[4];
629 unsigned preamble_len;
631 /* If the EVPD (Enable Vital Product Data) bit is set in byte 1,
632 * we are being asked for a specific page of info indicated by byte 2. */
637 buf[idx++] = 0x05; /* CD-ROM */
638 buf[idx++] = page_code; /* Page Code */
639 buf[idx++] = 0x00; /* reserved */
640 idx++; /* length (set later) */
644 /* Supported Pages: List of supported VPD responses. */
645 buf[idx++] = 0x00; /* 0x00: Supported Pages, and: */
646 buf[idx++] = 0x83; /* 0x83: Device Identification. */
650 /* Device Identification. Each entry is optional, but the entries
651 * included here are modeled after libata's VPD responses.
652 * If the response is given, at least one entry must be present. */
654 /* Entry 1: Serial */
655 if (idx + 24 > max_len) {
656 /* Not enough room for even the first entry: */
657 /* 4 byte header + 20 byte string */
658 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
659 ASC_DATA_PHASE_ERROR);
662 buf[idx++] = 0x02; /* Ascii */
663 buf[idx++] = 0x00; /* Vendor Specific */
665 buf[idx++] = 20; /* Remaining length */
666 padstr8(buf + idx, 20, s->drive_serial_str);
669 /* Entry 2: Drive Model and Serial */
670 if (idx + 72 > max_len) {
671 /* 4 (header) + 8 (vendor) + 60 (model & serial) */
674 buf[idx++] = 0x02; /* Ascii */
675 buf[idx++] = 0x01; /* T10 Vendor */
678 padstr8(buf + idx, 8, "ATA"); /* Generic T10 vendor */
680 padstr8(buf + idx, 40, s->drive_model_str);
682 padstr8(buf + idx, 20, s->drive_serial_str);
686 if (s->wwn && (idx + 12 <= max_len)) {
687 /* 4 byte header + 8 byte wwn */
688 buf[idx++] = 0x01; /* Binary */
689 buf[idx++] = 0x03; /* NAA */
692 stq_be_p(&buf[idx], s->wwn);
698 /* SPC-3, revision 23 sec. 6.4 */
699 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
700 ASC_INV_FIELD_IN_CMD_PACKET);
707 buf[0] = 0x05; /* CD-ROM */
708 buf[1] = 0x80; /* removable */
709 buf[2] = 0x00; /* ISO */
710 buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
711 /* buf[size_idx] set below. */
712 buf[5] = 0; /* reserved */
713 buf[6] = 0; /* reserved */
714 buf[7] = 0; /* reserved */
715 padstr8(buf + 8, 8, "QEMU");
716 padstr8(buf + 16, 16, "QEMU DVD-ROM");
717 padstr8(buf + 32, 4, s->version);
722 buf[size_idx] = idx - preamble_len;
723 ide_atapi_cmd_reply(s, idx, max_len);
727 static void cmd_get_configuration(IDEState *s, uint8_t *buf)
733 /* only feature 0 is supported */
734 if (buf[2] != 0 || buf[3] != 0) {
735 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
736 ASC_INV_FIELD_IN_CMD_PACKET);
740 /* XXX: could result in alignment problems in some architectures */
741 max_len = ube16_to_cpu(buf + 7);
744 * XXX: avoid overflow for io_buffer if max_len is bigger than
745 * the size of that buffer (dimensioned to max number of
746 * sectors to transfer at once)
748 * Only a problem if the feature/profiles grow.
751 /* XXX: assume 1 sector */
755 memset(buf, 0, max_len);
757 * the number of sectors from the media tells us which profile
758 * to use as current. 0 means there is no media
760 if (media_is_dvd(s)) {
761 cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM);
762 } else if (media_is_cd(s)) {
763 cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM);
766 buf[10] = 0x02 | 0x01; /* persistent and current */
767 len = 12; /* headers: 8 + 4 */
768 len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM);
769 len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM);
770 cpu_to_ube32(buf, len - 4); /* data length */
772 ide_atapi_cmd_reply(s, len, max_len);
775 static void cmd_mode_sense(IDEState *s, uint8_t *buf)
780 max_len = ube16_to_cpu(buf + 7);
781 action = buf[2] >> 6;
782 code = buf[2] & 0x3f;
785 case 0: /* current values */
787 case MODE_PAGE_R_W_ERROR: /* error recovery */
788 cpu_to_ube16(&buf[0], 16 - 2);
796 buf[8] = MODE_PAGE_R_W_ERROR;
804 ide_atapi_cmd_reply(s, 16, max_len);
806 case MODE_PAGE_AUDIO_CTL:
807 cpu_to_ube16(&buf[0], 24 - 2);
815 buf[8] = MODE_PAGE_AUDIO_CTL;
817 /* Fill with CDROM audio volume */
823 ide_atapi_cmd_reply(s, 24, max_len);
825 case MODE_PAGE_CAPABILITIES:
826 cpu_to_ube16(&buf[0], 30 - 2);
834 buf[8] = MODE_PAGE_CAPABILITIES;
836 buf[10] = 0x3b; /* read CDR/CDRW/DVDROM/DVDR/DVDRAM */
839 /* Claim PLAY_AUDIO capability (0x01) since some Linux
840 code checks for this to automount media. */
843 buf[14] = (1 << 0) | (1 << 3) | (1 << 5);
844 if (s->tray_locked) {
847 buf[15] = 0x00; /* No volume & mute control, no changer */
848 cpu_to_ube16(&buf[16], 704); /* 4x read speed */
849 buf[18] = 0; /* Two volume levels */
851 cpu_to_ube16(&buf[20], 512); /* 512k buffer */
852 cpu_to_ube16(&buf[22], 704); /* 4x read speed current */
859 ide_atapi_cmd_reply(s, 30, max_len);
865 case 1: /* changeable values */
867 case 2: /* default values */
870 case 3: /* saved values */
871 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
872 ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
878 ide_atapi_cmd_error(s, ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
881 static void cmd_test_unit_ready(IDEState *s, uint8_t *buf)
883 /* Not Ready Conditions are already handled in ide_atapi_cmd(), so if we
884 * come here, we know that it's ready. */
888 static void cmd_prevent_allow_medium_removal(IDEState *s, uint8_t* buf)
890 s->tray_locked = buf[4] & 1;
891 blk_lock_medium(s->blk, buf[4] & 1);
895 static void cmd_read(IDEState *s, uint8_t* buf)
899 if (buf[0] == GPCMD_READ_10) {
900 nb_sectors = ube16_to_cpu(buf + 7);
902 nb_sectors = ube32_to_cpu(buf + 6);
905 lba = ube32_to_cpu(buf + 2);
906 if (nb_sectors == 0) {
911 ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
914 static void cmd_read_cd(IDEState *s, uint8_t* buf)
916 int nb_sectors, lba, transfer_request;
918 nb_sectors = (buf[6] << 16) | (buf[7] << 8) | buf[8];
919 lba = ube32_to_cpu(buf + 2);
921 if (nb_sectors == 0) {
926 transfer_request = buf[9];
927 switch(transfer_request & 0xf8) {
934 ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
938 ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
941 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
942 ASC_INV_FIELD_IN_CMD_PACKET);
947 static void cmd_seek(IDEState *s, uint8_t* buf)
950 uint64_t total_sectors = s->nb_sectors >> 2;
952 lba = ube32_to_cpu(buf + 2);
953 if (lba >= total_sectors) {
954 ide_atapi_cmd_error(s, ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR);
961 static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
964 bool start = buf[4] & 1;
965 bool loej = buf[4] & 2; /* load on start, eject on !start */
966 int pwrcnd = buf[4] & 0xf0;
969 /* eject/load only happens for power condition == 0 */
974 if (!start && !s->tray_open && s->tray_locked) {
975 sense = blk_is_inserted(s->blk)
976 ? NOT_READY : ILLEGAL_REQUEST;
977 ide_atapi_cmd_error(s, sense, ASC_MEDIA_REMOVAL_PREVENTED);
981 if (s->tray_open != !start) {
982 blk_eject(s->blk, !start);
983 s->tray_open = !start;
990 static void cmd_mechanism_status(IDEState *s, uint8_t* buf)
992 int max_len = ube16_to_cpu(buf + 8);
994 cpu_to_ube16(buf, 0);
1000 cpu_to_ube16(buf + 6, 0);
1001 ide_atapi_cmd_reply(s, 8, max_len);
1004 static void cmd_read_toc_pma_atip(IDEState *s, uint8_t* buf)
1006 int format, msf, start_track, len;
1008 uint64_t total_sectors = s->nb_sectors >> 2;
1010 max_len = ube16_to_cpu(buf + 7);
1011 format = buf[9] >> 6;
1012 msf = (buf[1] >> 1) & 1;
1013 start_track = buf[6];
1017 len = cdrom_read_toc(total_sectors, buf, msf, start_track);
1020 ide_atapi_cmd_reply(s, len, max_len);
1023 /* multi session : only a single session defined */
1028 ide_atapi_cmd_reply(s, 12, max_len);
1031 len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track);
1034 ide_atapi_cmd_reply(s, len, max_len);
1038 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
1039 ASC_INV_FIELD_IN_CMD_PACKET);
1043 static void cmd_read_cdvd_capacity(IDEState *s, uint8_t* buf)
1045 uint64_t total_sectors = s->nb_sectors >> 2;
1047 /* NOTE: it is really the number of sectors minus 1 */
1048 cpu_to_ube32(buf, total_sectors - 1);
1049 cpu_to_ube32(buf + 4, 2048);
1050 ide_atapi_cmd_reply(s, 8, 8);
1053 static void cmd_read_disc_information(IDEState *s, uint8_t* buf)
1055 uint8_t type = buf[1] & 7;
1056 uint32_t max_len = ube16_to_cpu(buf + 7);
1058 /* Types 1/2 are only defined for Blu-Ray. */
1060 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
1061 ASC_INV_FIELD_IN_CMD_PACKET);
1067 buf[2] = 0xe; /* last session complete, disc finalized */
1068 buf[3] = 1; /* first track on disc */
1069 buf[4] = 1; /* # of sessions */
1070 buf[5] = 1; /* first track of last session */
1071 buf[6] = 1; /* last track of last session */
1072 buf[7] = 0x20; /* unrestricted use */
1073 buf[8] = 0x00; /* CD-ROM or DVD-ROM */
1074 /* 9-10-11: most significant byte corresponding bytes 4-5-6 */
1075 /* 12-23: not meaningful for CD-ROM or DVD-ROM */
1076 /* 24-31: disc bar code */
1077 /* 32: disc application code */
1078 /* 33: number of OPC tables */
1080 ide_atapi_cmd_reply(s, 34, max_len);
1083 static void cmd_read_dvd_structure(IDEState *s, uint8_t* buf)
1087 int format = buf[7];
1090 max_len = ube16_to_cpu(buf + 8);
1092 if (format < 0xff) {
1093 if (media_is_cd(s)) {
1094 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
1095 ASC_INCOMPATIBLE_FORMAT);
1097 } else if (!media_present(s)) {
1098 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
1099 ASC_INV_FIELD_IN_CMD_PACKET);
1104 memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ?
1105 IDE_DMA_BUF_SECTORS * 512 + 4 : max_len);
1111 ret = ide_dvd_read_structure(s, format, buf, buf);
1114 ide_atapi_cmd_error(s, ILLEGAL_REQUEST, -ret);
1116 ide_atapi_cmd_reply(s, ret, max_len);
1121 /* TODO: BD support, fall through for now */
1123 /* Generic disk structures */
1124 case 0x80: /* TODO: AACS volume identifier */
1125 case 0x81: /* TODO: AACS media serial number */
1126 case 0x82: /* TODO: AACS media identifier */
1127 case 0x83: /* TODO: AACS media key block */
1128 case 0x90: /* TODO: List of recognized format layers */
1129 case 0xc0: /* TODO: Write protection status */
1131 ide_atapi_cmd_error(s, ILLEGAL_REQUEST,
1132 ASC_INV_FIELD_IN_CMD_PACKET);
1137 static void cmd_set_speed(IDEState *s, uint8_t* buf)
1139 ide_atapi_cmd_ok(s);
1144 * Only commands flagged as ALLOW_UA are allowed to run under a
1145 * unit attention condition. (See MMC-5, section 4.1.6.1)
1150 * Commands flagged with CHECK_READY can only execute if a medium is present.
1151 * Otherwise they report the Not Ready Condition. (See MMC-5, section
1157 static const struct {
1158 void (*handler)(IDEState *s, uint8_t *buf);
1160 } atapi_cmd_table[0x100] = {
1161 [ 0x00 ] = { cmd_test_unit_ready, CHECK_READY },
1162 [ 0x03 ] = { cmd_request_sense, ALLOW_UA },
1163 [ 0x12 ] = { cmd_inquiry, ALLOW_UA },
1164 [ 0x1b ] = { cmd_start_stop_unit, 0 }, /* [1] */
1165 [ 0x1e ] = { cmd_prevent_allow_medium_removal, 0 },
1166 [ 0x25 ] = { cmd_read_cdvd_capacity, CHECK_READY },
1167 [ 0x28 ] = { cmd_read, /* (10) */ CHECK_READY },
1168 [ 0x2b ] = { cmd_seek, CHECK_READY },
1169 [ 0x43 ] = { cmd_read_toc_pma_atip, CHECK_READY },
1170 [ 0x46 ] = { cmd_get_configuration, ALLOW_UA },
1171 [ 0x4a ] = { cmd_get_event_status_notification, ALLOW_UA },
1172 [ 0x51 ] = { cmd_read_disc_information, CHECK_READY },
1173 [ 0x5a ] = { cmd_mode_sense, /* (10) */ 0 },
1174 [ 0xa8 ] = { cmd_read, /* (12) */ CHECK_READY },
1175 [ 0xad ] = { cmd_read_dvd_structure, CHECK_READY },
1176 [ 0xbb ] = { cmd_set_speed, 0 },
1177 [ 0xbd ] = { cmd_mechanism_status, 0 },
1178 [ 0xbe ] = { cmd_read_cd, CHECK_READY },
1179 /* [1] handler detects and reports not ready condition itself */
1182 void ide_atapi_cmd(IDEState *s)
1187 #ifdef DEBUG_IDE_ATAPI
1190 printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8));
1191 for(i = 0; i < ATAPI_PACKET_SIZE; i++) {
1192 printf(" %02x", buf[i]);
1198 * If there's a UNIT_ATTENTION condition pending, only command flagged with
1199 * ALLOW_UA are allowed to complete. with other commands getting a CHECK
1200 * condition response unless a higher priority status, defined by the drive
1203 if (s->sense_key == UNIT_ATTENTION &&
1204 !(atapi_cmd_table[s->io_buffer[0]].flags & ALLOW_UA)) {
1205 ide_atapi_cmd_check_status(s);
1209 * When a CD gets changed, we have to report an ejected state and
1210 * then a loaded state to guests so that they detect tray
1211 * open/close and media change events. Guests that do not use
1212 * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
1213 * states rely on this behavior.
1215 if (!(atapi_cmd_table[s->io_buffer[0]].flags & ALLOW_UA) &&
1216 !s->tray_open && blk_is_inserted(s->blk) && s->cdrom_changed) {
1218 if (s->cdrom_changed == 1) {
1219 ide_atapi_cmd_error(s, NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1220 s->cdrom_changed = 2;
1222 ide_atapi_cmd_error(s, UNIT_ATTENTION, ASC_MEDIUM_MAY_HAVE_CHANGED);
1223 s->cdrom_changed = 0;
1229 /* Report a Not Ready condition if appropriate for the command */
1230 if ((atapi_cmd_table[s->io_buffer[0]].flags & CHECK_READY) &&
1231 (!media_present(s) || !blk_is_inserted(s->blk)))
1233 ide_atapi_cmd_error(s, NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1237 /* Execute the command */
1238 if (atapi_cmd_table[s->io_buffer[0]].handler) {
1239 atapi_cmd_table[s->io_buffer[0]].handler(s, buf);
1243 ide_atapi_cmd_error(s, ILLEGAL_REQUEST, ASC_ILLEGAL_OPCODE);