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
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* 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->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(BlockDriverState *bs, int lba, uint8_t *buf,
112
switch(sector_size) {
114
ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4);
117
ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4);
120
cd_data_to_raw(buf, lba);
129
void ide_atapi_cmd_ok(IDEState *s)
132
s->status = READY_STAT | SEEK_STAT;
133
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
137
void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc)
139
#ifdef DEBUG_IDE_ATAPI
140
printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
142
s->error = sense_key << 4;
143
s->status = READY_STAT | ERR_STAT;
144
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
145
s->sense_key = sense_key;
150
void ide_atapi_io_error(IDEState *s, int ret)
152
/* XXX: handle more errors */
153
if (ret == -ENOMEDIUM) {
154
ide_atapi_cmd_error(s, SENSE_NOT_READY,
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ASC_MEDIUM_NOT_PRESENT);
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ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
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ASC_LOGICAL_BLOCK_OOR);
162
/* The whole ATAPI transfer logic is handled in this function */
163
void ide_atapi_cmd_reply_end(IDEState *s)
165
int byte_count_limit, size, ret;
166
#ifdef DEBUG_IDE_ATAPI
167
printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
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s->packet_transfer_size,
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s->elementary_transfer_size,
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if (s->packet_transfer_size <= 0) {
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/* end of transfer */
174
ide_transfer_stop(s);
175
s->status = READY_STAT | SEEK_STAT;
176
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
178
#ifdef DEBUG_IDE_ATAPI
179
printf("status=0x%x\n", s->status);
182
/* see if a new sector must be read */
183
if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) {
184
ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size);
186
ide_transfer_stop(s);
187
ide_atapi_io_error(s, ret);
191
s->io_buffer_index = 0;
193
if (s->elementary_transfer_size > 0) {
194
/* there are some data left to transmit in this elementary
196
size = s->cd_sector_size - s->io_buffer_index;
197
if (size > s->elementary_transfer_size)
198
size = s->elementary_transfer_size;
199
s->packet_transfer_size -= size;
200
s->elementary_transfer_size -= size;
201
s->io_buffer_index += size;
202
ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size,
203
size, ide_atapi_cmd_reply_end);
205
/* a new transfer is needed */
206
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
207
byte_count_limit = s->lcyl | (s->hcyl << 8);
208
#ifdef DEBUG_IDE_ATAPI
209
printf("byte_count_limit=%d\n", byte_count_limit);
211
if (byte_count_limit == 0xffff)
213
size = s->packet_transfer_size;
214
if (size > byte_count_limit) {
215
/* byte count limit must be even if this case */
216
if (byte_count_limit & 1)
218
size = byte_count_limit;
222
s->elementary_transfer_size = size;
223
/* we cannot transmit more than one sector at a time */
225
if (size > (s->cd_sector_size - s->io_buffer_index))
226
size = (s->cd_sector_size - s->io_buffer_index);
228
s->packet_transfer_size -= size;
229
s->elementary_transfer_size -= size;
230
s->io_buffer_index += size;
231
ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size,
232
size, ide_atapi_cmd_reply_end);
234
#ifdef DEBUG_IDE_ATAPI
235
printf("status=0x%x\n", s->status);
241
/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
242
static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
246
s->lba = -1; /* no sector read */
247
s->packet_transfer_size = size;
248
s->io_buffer_size = size; /* dma: send the reply data as one chunk */
249
s->elementary_transfer_size = 0;
250
s->io_buffer_index = 0;
253
s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
254
s->bus->dma->ops->start_dma(s->bus->dma, s,
255
ide_atapi_cmd_read_dma_cb);
257
s->status = READY_STAT | SEEK_STAT;
258
ide_atapi_cmd_reply_end(s);
262
/* start a CD-CDROM read command */
263
static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors,
267
s->packet_transfer_size = nb_sectors * sector_size;
268
s->elementary_transfer_size = 0;
269
s->io_buffer_index = sector_size;
270
s->cd_sector_size = sector_size;
272
s->status = READY_STAT | SEEK_STAT;
273
ide_atapi_cmd_reply_end(s);
276
static void ide_atapi_cmd_check_status(IDEState *s)
278
#ifdef DEBUG_IDE_ATAPI
279
printf("atapi_cmd_check_status\n");
281
s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4);
282
s->status = ERR_STAT;
286
/* ATAPI DMA support */
288
/* XXX: handle read errors */
289
static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret)
291
IDEState *s = opaque;
295
ide_atapi_io_error(s, ret);
299
if (s->io_buffer_size > 0) {
301
* For a cdrom read sector command (s->lba != -1),
302
* adjust the lba for the next s->io_buffer_size chunk
303
* and dma the current chunk.
304
* For a command != read (s->lba == -1), just transfer
308
if (s->cd_sector_size == 2352) {
310
cd_data_to_raw(s->io_buffer, s->lba);
312
n = s->io_buffer_size >> 11;
316
s->packet_transfer_size -= s->io_buffer_size;
317
if (s->bus->dma->ops->rw_buf(s->bus->dma, 1) == 0)
321
if (s->packet_transfer_size <= 0) {
322
s->status = READY_STAT | SEEK_STAT;
323
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
326
s->bus->dma->ops->add_status(s->bus->dma, BM_STATUS_INT);
331
s->io_buffer_index = 0;
332
if (s->cd_sector_size == 2352) {
334
s->io_buffer_size = s->cd_sector_size;
337
n = s->packet_transfer_size >> 11;
338
if (n > (IDE_DMA_BUF_SECTORS / 4))
339
n = (IDE_DMA_BUF_SECTORS / 4);
340
s->io_buffer_size = n * 2048;
344
printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
346
s->bus->dma->iov.iov_base = (void *)(s->io_buffer + data_offset);
347
s->bus->dma->iov.iov_len = n * 4 * 512;
348
qemu_iovec_init_external(&s->bus->dma->qiov, &s->bus->dma->iov, 1);
349
s->bus->dma->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2,
350
&s->bus->dma->qiov, n * 4,
351
ide_atapi_cmd_read_dma_cb, s);
352
if (!s->bus->dma->aiocb) {
353
/* Note: media not present is the most likely case */
354
ide_atapi_cmd_error(s, SENSE_NOT_READY,
355
ASC_MEDIUM_NOT_PRESENT);
360
/* start a CD-CDROM read command with DMA */
361
/* XXX: test if DMA is available */
362
static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors,
366
s->packet_transfer_size = nb_sectors * sector_size;
367
s->io_buffer_index = 0;
368
s->io_buffer_size = 0;
369
s->cd_sector_size = sector_size;
371
/* XXX: check if BUSY_STAT should be set */
372
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
373
s->bus->dma->ops->start_dma(s->bus->dma, s,
374
ide_atapi_cmd_read_dma_cb);
377
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors,
380
#ifdef DEBUG_IDE_ATAPI
381
printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio",
385
ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size);
387
ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size);
391
static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index,
394
uint8_t *buf_profile = buf + 12; /* start of profiles */
396
buf_profile += ((*index) * 4); /* start of indexed profile */
397
cpu_to_ube16 (buf_profile, profile);
398
buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7]));
400
/* each profile adds 4 bytes to the response */
402
buf[11] += 4; /* Additional Length */
407
static int ide_dvd_read_structure(IDEState *s, int format,
408
const uint8_t *packet, uint8_t *buf)
411
case 0x0: /* Physical format information */
413
int layer = packet[6];
414
uint64_t total_sectors;
417
return -ASC_INV_FIELD_IN_CMD_PACKET;
419
total_sectors = s->nb_sectors >> 2;
420
if (total_sectors == 0) {
421
return -ASC_MEDIUM_NOT_PRESENT;
424
buf[4] = 1; /* DVD-ROM, part version 1 */
425
buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */
426
buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */
427
buf[7] = 0; /* default densities */
429
/* FIXME: 0x30000 per spec? */
430
cpu_to_ube32(buf + 8, 0); /* start sector */
431
cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */
432
cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */
434
/* Size of buffer, not including 2 byte size field */
435
cpu_to_be16wu((uint16_t *)buf, 2048 + 2);
437
/* 2k data + 4 byte header */
441
case 0x01: /* DVD copyright information */
442
buf[4] = 0; /* no copyright data */
443
buf[5] = 0; /* no region restrictions */
445
/* Size of buffer, not including 2 byte size field */
446
cpu_to_be16wu((uint16_t *)buf, 4 + 2);
448
/* 4 byte header + 4 byte data */
451
case 0x03: /* BCA information - invalid field for no BCA info */
452
return -ASC_INV_FIELD_IN_CMD_PACKET;
454
case 0x04: /* DVD disc manufacturing information */
455
/* Size of buffer, not including 2 byte size field */
456
cpu_to_be16wu((uint16_t *)buf, 2048 + 2);
458
/* 2k data + 4 byte header */
463
* This lists all the command capabilities above. Add new ones
464
* in order and update the length and buffer return values.
467
buf[4] = 0x00; /* Physical format */
468
buf[5] = 0x40; /* Not writable, is readable */
469
cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4);
471
buf[8] = 0x01; /* Copyright info */
472
buf[9] = 0x40; /* Not writable, is readable */
473
cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4);
475
buf[12] = 0x03; /* BCA info */
476
buf[13] = 0x40; /* Not writable, is readable */
477
cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4);
479
buf[16] = 0x04; /* Manufacturing info */
480
buf[17] = 0x40; /* Not writable, is readable */
481
cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4);
483
/* Size of buffer, not including 2 byte size field */
484
cpu_to_be16wu((uint16_t *)buf, 16 + 2);
486
/* data written + 4 byte header */
489
default: /* TODO: formats beyond DVD-ROM requires */
490
return -ASC_INV_FIELD_IN_CMD_PACKET;
494
static unsigned int event_status_media(IDEState *s,
497
enum media_event_code {
498
MEC_NO_CHANGE = 0, /* Status unchanged */
499
MEC_EJECT_REQUESTED, /* received a request from user to eject */
500
MEC_NEW_MEDIA, /* new media inserted and ready for access */
501
MEC_MEDIA_REMOVAL, /* only for media changers */
502
MEC_MEDIA_CHANGED, /* only for media changers */
503
MEC_BG_FORMAT_COMPLETED, /* MRW or DVD+RW b/g format completed */
504
MEC_BG_FORMAT_RESTARTED, /* MRW or DVD+RW b/g format restarted */
508
MS_MEDIA_PRESENT = 2,
510
uint8_t event_code, media_status;
513
if (s->bs->tray_open) {
514
media_status = MS_TRAY_OPEN;
515
} else if (bdrv_is_inserted(s->bs)) {
516
media_status = MS_MEDIA_PRESENT;
519
/* Event notification descriptor */
520
event_code = MEC_NO_CHANGE;
521
if (media_status != MS_TRAY_OPEN && s->events.new_media) {
522
event_code = MEC_NEW_MEDIA;
523
s->events.new_media = false;
527
buf[5] = media_status;
529
/* These fields are reserved, just clear them. */
533
return 8; /* We wrote to 4 extra bytes from the header */
536
static void cmd_get_event_status_notification(IDEState *s,
539
const uint8_t *packet = buf;
543
uint8_t polled; /* lsb bit is polled; others are reserved */
544
uint8_t reserved2[2];
546
uint8_t reserved3[2];
549
} __attribute__((packed)) *gesn_cdb;
553
uint8_t notification_class;
554
uint8_t supported_events;
555
} __attribute((packed)) *gesn_event_header;
557
enum notification_class_request_type {
558
NCR_RESERVED1 = 1 << 0,
559
NCR_OPERATIONAL_CHANGE = 1 << 1,
560
NCR_POWER_MANAGEMENT = 1 << 2,
561
NCR_EXTERNAL_REQUEST = 1 << 3,
563
NCR_MULTI_HOST = 1 << 5,
564
NCR_DEVICE_BUSY = 1 << 6,
565
NCR_RESERVED2 = 1 << 7,
567
enum event_notification_class_field {
569
ENC_OPERATIONAL_CHANGE,
570
ENC_POWER_MANAGEMENT,
571
ENC_EXTERNAL_REQUEST,
577
unsigned int max_len, used_len;
579
gesn_cdb = (void *)packet;
580
gesn_event_header = (void *)buf;
582
max_len = be16_to_cpu(gesn_cdb->len);
584
/* It is fine by the MMC spec to not support async mode operations */
585
if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */
586
/* Only polling is supported, asynchronous mode is not. */
587
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
588
ASC_INV_FIELD_IN_CMD_PACKET);
592
/* polling mode operation */
595
* These are the supported events.
597
* We currently only support requests of the 'media' type.
599
gesn_event_header->supported_events = NCR_MEDIA;
602
* We use |= below to set the class field; other bits in this byte
603
* are reserved now but this is useful to do if we have to use the
604
* reserved fields later.
606
gesn_event_header->notification_class = 0;
609
* Responses to requests are to be based on request priority. The
610
* notification_class_request_type enum above specifies the
611
* priority: upper elements are higher prio than lower ones.
613
if (gesn_cdb->class & NCR_MEDIA) {
614
gesn_event_header->notification_class |= ENC_MEDIA;
615
used_len = event_status_media(s, buf);
617
gesn_event_header->notification_class = 0x80; /* No event available */
618
used_len = sizeof(*gesn_event_header);
620
gesn_event_header->len = cpu_to_be16(used_len
621
- sizeof(*gesn_event_header));
622
ide_atapi_cmd_reply(s, used_len, max_len);
625
static void cmd_request_sense(IDEState *s, uint8_t *buf)
627
int max_len = buf[4];
630
buf[0] = 0x70 | (1 << 7);
631
buf[2] = s->sense_key;
635
if (s->sense_key == SENSE_UNIT_ATTENTION) {
636
s->sense_key = SENSE_NONE;
639
ide_atapi_cmd_reply(s, 18, max_len);
642
static void cmd_inquiry(IDEState *s, uint8_t *buf)
644
int max_len = buf[4];
646
buf[0] = 0x05; /* CD-ROM */
647
buf[1] = 0x80; /* removable */
648
buf[2] = 0x00; /* ISO */
649
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
650
buf[4] = 31; /* additional length */
651
buf[5] = 0; /* reserved */
652
buf[6] = 0; /* reserved */
653
buf[7] = 0; /* reserved */
654
padstr8(buf + 8, 8, "QEMU");
655
padstr8(buf + 16, 16, "QEMU DVD-ROM");
656
padstr8(buf + 32, 4, s->version);
657
ide_atapi_cmd_reply(s, 36, max_len);
660
static void cmd_get_configuration(IDEState *s, uint8_t *buf)
666
/* only feature 0 is supported */
667
if (buf[2] != 0 || buf[3] != 0) {
668
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
669
ASC_INV_FIELD_IN_CMD_PACKET);
673
/* XXX: could result in alignment problems in some architectures */
674
max_len = ube16_to_cpu(buf + 7);
677
* XXX: avoid overflow for io_buffer if max_len is bigger than
678
* the size of that buffer (dimensioned to max number of
679
* sectors to transfer at once)
681
* Only a problem if the feature/profiles grow.
684
/* XXX: assume 1 sector */
688
memset(buf, 0, max_len);
690
* the number of sectors from the media tells us which profile
691
* to use as current. 0 means there is no media
693
if (media_is_dvd(s)) {
694
cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM);
695
} else if (media_is_cd(s)) {
696
cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM);
699
buf[10] = 0x02 | 0x01; /* persistent and current */
700
len = 12; /* headers: 8 + 4 */
701
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM);
702
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM);
703
cpu_to_ube32(buf, len - 4); /* data length */
705
ide_atapi_cmd_reply(s, len, max_len);
708
static void cmd_mode_sense(IDEState *s, uint8_t *buf)
713
if (buf[0] == GPCMD_MODE_SENSE_10) {
714
max_len = ube16_to_cpu(buf + 7);
719
action = buf[2] >> 6;
720
code = buf[2] & 0x3f;
723
case 0: /* current values */
725
case GPMODE_R_W_ERROR_PAGE: /* error recovery */
726
cpu_to_ube16(&buf[0], 16 + 6);
742
ide_atapi_cmd_reply(s, 16, max_len);
744
case GPMODE_AUDIO_CTL_PAGE:
745
cpu_to_ube16(&buf[0], 24 + 6);
753
/* Fill with CDROM audio volume */
759
ide_atapi_cmd_reply(s, 24, max_len);
761
case GPMODE_CAPABILITIES_PAGE:
762
cpu_to_ube16(&buf[0], 28 + 6);
775
/* Claim PLAY_AUDIO capability (0x01) since some Linux
776
code checks for this to automount media. */
779
buf[14] = (1 << 0) | (1 << 3) | (1 << 5);
780
if (bdrv_is_locked(s->bs))
783
cpu_to_ube16(&buf[16], 706);
786
cpu_to_ube16(&buf[20], 512);
787
cpu_to_ube16(&buf[22], 706);
792
ide_atapi_cmd_reply(s, 28, max_len);
798
case 1: /* changeable values */
800
case 2: /* default values */
803
case 3: /* saved values */
804
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
805
ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
811
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
814
static void cmd_test_unit_ready(IDEState *s, uint8_t *buf)
816
/* Not Ready Conditions are already handled in ide_atapi_cmd(), so if we
817
* come here, we know that it's ready. */
821
static void cmd_prevent_allow_medium_removal(IDEState *s, uint8_t* buf)
823
bdrv_set_locked(s->bs, buf[4] & 1);
827
static void cmd_read(IDEState *s, uint8_t* buf)
831
if (buf[0] == GPCMD_READ_10) {
832
nb_sectors = ube16_to_cpu(buf + 7);
834
nb_sectors = ube32_to_cpu(buf + 6);
837
lba = ube32_to_cpu(buf + 2);
838
if (nb_sectors == 0) {
843
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
846
static void cmd_read_cd(IDEState *s, uint8_t* buf)
848
int nb_sectors, lba, transfer_request;
850
nb_sectors = (buf[6] << 16) | (buf[7] << 8) | buf[8];
851
lba = ube32_to_cpu(buf + 2);
853
if (nb_sectors == 0) {
858
transfer_request = buf[9];
859
switch(transfer_request & 0xf8) {
866
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
870
ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
873
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
874
ASC_INV_FIELD_IN_CMD_PACKET);
879
static void cmd_seek(IDEState *s, uint8_t* buf)
882
uint64_t total_sectors = s->nb_sectors >> 2;
884
lba = ube32_to_cpu(buf + 2);
885
if (lba >= total_sectors) {
886
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR);
893
static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
895
int start, eject, sense, err = 0;
897
eject = (buf[4] >> 1) & 1;
900
err = bdrv_eject(s->bs, !start);
908
sense = SENSE_NOT_READY;
909
if (bdrv_is_inserted(s->bs)) {
910
sense = SENSE_ILLEGAL_REQUEST;
912
ide_atapi_cmd_error(s, sense, ASC_MEDIA_REMOVAL_PREVENTED);
915
ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
920
static void cmd_mechanism_status(IDEState *s, uint8_t* buf)
922
int max_len = ube16_to_cpu(buf + 8);
924
cpu_to_ube16(buf, 0);
930
cpu_to_ube16(buf + 6, 0);
931
ide_atapi_cmd_reply(s, 8, max_len);
934
static void cmd_read_toc_pma_atip(IDEState *s, uint8_t* buf)
936
int format, msf, start_track, len;
938
uint64_t total_sectors = s->nb_sectors >> 2;
940
max_len = ube16_to_cpu(buf + 7);
941
format = buf[9] >> 6;
942
msf = (buf[1] >> 1) & 1;
943
start_track = buf[6];
947
len = cdrom_read_toc(total_sectors, buf, msf, start_track);
950
ide_atapi_cmd_reply(s, len, max_len);
953
/* multi session : only a single session defined */
958
ide_atapi_cmd_reply(s, 12, max_len);
961
len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track);
964
ide_atapi_cmd_reply(s, len, max_len);
968
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
969
ASC_INV_FIELD_IN_CMD_PACKET);
973
static void cmd_read_cdvd_capacity(IDEState *s, uint8_t* buf)
975
uint64_t total_sectors = s->nb_sectors >> 2;
977
/* NOTE: it is really the number of sectors minus 1 */
978
cpu_to_ube32(buf, total_sectors - 1);
979
cpu_to_ube32(buf + 4, 2048);
980
ide_atapi_cmd_reply(s, 8, 8);
983
static void cmd_read_dvd_structure(IDEState *s, uint8_t* buf)
990
max_len = ube16_to_cpu(buf + 8);
993
if (media_is_cd(s)) {
994
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
995
ASC_INCOMPATIBLE_FORMAT);
997
} else if (!media_present(s)) {
998
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
999
ASC_INV_FIELD_IN_CMD_PACKET);
1004
memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ?
1005
IDE_DMA_BUF_SECTORS * 512 + 4 : max_len);
1011
ret = ide_dvd_read_structure(s, format, buf, buf);
1014
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret);
1016
ide_atapi_cmd_reply(s, ret, max_len);
1021
/* TODO: BD support, fall through for now */
1023
/* Generic disk structures */
1024
case 0x80: /* TODO: AACS volume identifier */
1025
case 0x81: /* TODO: AACS media serial number */
1026
case 0x82: /* TODO: AACS media identifier */
1027
case 0x83: /* TODO: AACS media key block */
1028
case 0x90: /* TODO: List of recognized format layers */
1029
case 0xc0: /* TODO: Write protection status */
1031
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
1032
ASC_INV_FIELD_IN_CMD_PACKET);
1037
static void cmd_set_speed(IDEState *s, uint8_t* buf)
1039
ide_atapi_cmd_ok(s);
1044
* Only commands flagged as ALLOW_UA are allowed to run under a
1045
* unit attention condition. (See MMC-5, section 4.1.6.1)
1050
* Commands flagged with CHECK_READY can only execute if a medium is present.
1051
* Otherwise they report the Not Ready Condition. (See MMC-5, section
1057
static const struct {
1058
void (*handler)(IDEState *s, uint8_t *buf);
1060
} atapi_cmd_table[0x100] = {
1061
[ 0x00 ] = { cmd_test_unit_ready, CHECK_READY },
1062
[ 0x03 ] = { cmd_request_sense, ALLOW_UA },
1063
[ 0x12 ] = { cmd_inquiry, ALLOW_UA },
1064
[ 0x1a ] = { cmd_mode_sense, /* (6) */ 0 },
1065
[ 0x1b ] = { cmd_start_stop_unit, 0 },
1066
[ 0x1e ] = { cmd_prevent_allow_medium_removal, 0 },
1067
[ 0x25 ] = { cmd_read_cdvd_capacity, CHECK_READY },
1068
[ 0x28 ] = { cmd_read, /* (10) */ 0 },
1069
[ 0x2b ] = { cmd_seek, CHECK_READY },
1070
[ 0x43 ] = { cmd_read_toc_pma_atip, CHECK_READY },
1071
[ 0x46 ] = { cmd_get_configuration, ALLOW_UA },
1072
[ 0x4a ] = { cmd_get_event_status_notification, ALLOW_UA },
1073
[ 0x5a ] = { cmd_mode_sense, /* (10) */ 0 },
1074
[ 0xa8 ] = { cmd_read, /* (12) */ 0 },
1075
[ 0xad ] = { cmd_read_dvd_structure, 0 },
1076
[ 0xbb ] = { cmd_set_speed, 0 },
1077
[ 0xbd ] = { cmd_mechanism_status, 0 },
1078
[ 0xbe ] = { cmd_read_cd, 0 },
1081
void ide_atapi_cmd(IDEState *s)
1086
#ifdef DEBUG_IDE_ATAPI
1089
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8));
1090
for(i = 0; i < ATAPI_PACKET_SIZE; i++) {
1091
printf(" %02x", buf[i]);
1097
* If there's a UNIT_ATTENTION condition pending, only command flagged with
1098
* ALLOW_UA are allowed to complete. with other commands getting a CHECK
1099
* condition response unless a higher priority status, defined by the drive
1102
if (s->sense_key == SENSE_UNIT_ATTENTION &&
1103
!(atapi_cmd_table[s->io_buffer[0]].flags & ALLOW_UA)) {
1104
ide_atapi_cmd_check_status(s);
1108
* When a CD gets changed, we have to report an ejected state and
1109
* then a loaded state to guests so that they detect tray
1110
* open/close and media change events. Guests that do not use
1111
* GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
1112
* states rely on this behavior.
1114
if (bdrv_is_inserted(s->bs) && s->cdrom_changed) {
1115
ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1117
s->cdrom_changed = 0;
1118
s->sense_key = SENSE_UNIT_ATTENTION;
1119
s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED;
1123
/* Report a Not Ready condition if appropriate for the command */
1124
if ((atapi_cmd_table[s->io_buffer[0]].flags & CHECK_READY) &&
1125
(!media_present(s) || !bdrv_is_inserted(s->bs)))
1127
ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1131
/* Execute the command */
1132
if (atapi_cmd_table[s->io_buffer[0]].handler) {
1133
atapi_cmd_table[s->io_buffer[0]].handler(s, buf);
1137
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_ILLEGAL_OPCODE);