2 * QEMU IDE disk and CD/DVD-ROM Emulator
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
28 #include "qemu-error.h"
29 #include "qemu-timer.h"
34 #include <hw/ide/internal.h>
36 /* These values were based on a Seagate ST3500418AS but have been modified
37 to make more sense in QEMU */
38 static const int smart_attributes[][12] = {
39 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
40 /* raw read error rate*/
41 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
43 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
44 /* start stop count */
45 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
46 /* remapped sectors */
47 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
49 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
50 /* power cycle count */
51 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
52 /* airflow-temperature-celsius */
53 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
55 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
58 static int ide_handle_rw_error(IDEState *s, int error, int op);
59 static void ide_dummy_transfer_stop(IDEState *s);
61 static void padstr(char *str, const char *src, int len)
64 for(i = 0; i < len; i++) {
73 static void put_le16(uint16_t *p, unsigned int v)
78 static void ide_identify(IDEState *s)
82 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
84 if (s->identify_set) {
85 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
89 memset(s->io_buffer, 0, 512);
90 p = (uint16_t *)s->io_buffer;
91 put_le16(p + 0, 0x0040);
92 put_le16(p + 1, s->cylinders);
93 put_le16(p + 3, s->heads);
94 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
95 put_le16(p + 5, 512); /* XXX: retired, remove ? */
96 put_le16(p + 6, s->sectors);
97 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
98 put_le16(p + 20, 3); /* XXX: retired, remove ? */
99 put_le16(p + 21, 512); /* cache size in sectors */
100 put_le16(p + 22, 4); /* ecc bytes */
101 padstr((char *)(p + 23), s->version, 8); /* firmware version */
102 padstr((char *)(p + 27), "QEMU HARDDISK", 40); /* model */
103 #if MAX_MULT_SECTORS > 1
104 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
106 put_le16(p + 48, 1); /* dword I/O */
107 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
108 put_le16(p + 51, 0x200); /* PIO transfer cycle */
109 put_le16(p + 52, 0x200); /* DMA transfer cycle */
110 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
111 put_le16(p + 54, s->cylinders);
112 put_le16(p + 55, s->heads);
113 put_le16(p + 56, s->sectors);
114 oldsize = s->cylinders * s->heads * s->sectors;
115 put_le16(p + 57, oldsize);
116 put_le16(p + 58, oldsize >> 16);
118 put_le16(p + 59, 0x100 | s->mult_sectors);
119 put_le16(p + 60, s->nb_sectors);
120 put_le16(p + 61, s->nb_sectors >> 16);
121 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
122 put_le16(p + 63, 0x07); /* mdma0-2 supported */
123 put_le16(p + 64, 0x03); /* pio3-4 supported */
124 put_le16(p + 65, 120);
125 put_le16(p + 66, 120);
126 put_le16(p + 67, 120);
127 put_le16(p + 68, 120);
128 if (dev && dev->conf.discard_granularity) {
129 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
133 put_le16(p + 75, s->ncq_queues - 1);
135 put_le16(p + 76, (1 << 8));
138 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
139 put_le16(p + 81, 0x16); /* conforms to ata5 */
140 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
141 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
142 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
143 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
144 /* 14=set to 1, 1=SMART self test, 0=SMART error logging */
145 put_le16(p + 84, (1 << 14) | 0);
146 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
147 if (bdrv_enable_write_cache(s->bs))
148 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
150 put_le16(p + 85, (1 << 14) | 1);
151 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
152 put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
153 /* 14=set to 1, 1=smart self test, 0=smart error logging */
154 put_le16(p + 87, (1 << 14) | 0);
155 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
156 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
157 put_le16(p + 100, s->nb_sectors);
158 put_le16(p + 101, s->nb_sectors >> 16);
159 put_le16(p + 102, s->nb_sectors >> 32);
160 put_le16(p + 103, s->nb_sectors >> 48);
162 if (dev && dev->conf.physical_block_size)
163 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
164 if (dev && dev->conf.discard_granularity) {
165 put_le16(p + 169, 1); /* TRIM support */
168 memcpy(s->identify_data, p, sizeof(s->identify_data));
172 static void ide_atapi_identify(IDEState *s)
176 if (s->identify_set) {
177 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
181 memset(s->io_buffer, 0, 512);
182 p = (uint16_t *)s->io_buffer;
183 /* Removable CDROM, 50us response, 12 byte packets */
184 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
185 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
186 put_le16(p + 20, 3); /* buffer type */
187 put_le16(p + 21, 512); /* cache size in sectors */
188 put_le16(p + 22, 4); /* ecc bytes */
189 padstr((char *)(p + 23), s->version, 8); /* firmware version */
190 padstr((char *)(p + 27), "QEMU DVD-ROM", 40); /* model */
191 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
193 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
194 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
195 put_le16(p + 62, 7); /* single word dma0-2 supported */
196 put_le16(p + 63, 7); /* mdma0-2 supported */
198 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
199 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
200 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
202 put_le16(p + 64, 3); /* pio3-4 supported */
203 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
204 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
205 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
206 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
208 put_le16(p + 71, 30); /* in ns */
209 put_le16(p + 72, 30); /* in ns */
212 put_le16(p + 75, s->ncq_queues - 1);
214 put_le16(p + 76, (1 << 8));
217 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
219 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
221 memcpy(s->identify_data, p, sizeof(s->identify_data));
225 static void ide_cfata_identify(IDEState *s)
230 p = (uint16_t *) s->identify_data;
234 memset(p, 0, sizeof(s->identify_data));
236 cur_sec = s->cylinders * s->heads * s->sectors;
238 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
239 put_le16(p + 1, s->cylinders); /* Default cylinders */
240 put_le16(p + 3, s->heads); /* Default heads */
241 put_le16(p + 6, s->sectors); /* Default sectors per track */
242 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
243 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
244 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
245 put_le16(p + 22, 0x0004); /* ECC bytes */
246 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
247 padstr((char *) (p + 27), "QEMU MICRODRIVE", 40);/* Model number */
248 #if MAX_MULT_SECTORS > 1
249 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
251 put_le16(p + 47, 0x0000);
253 put_le16(p + 49, 0x0f00); /* Capabilities */
254 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
255 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
256 put_le16(p + 53, 0x0003); /* Translation params valid */
257 put_le16(p + 54, s->cylinders); /* Current cylinders */
258 put_le16(p + 55, s->heads); /* Current heads */
259 put_le16(p + 56, s->sectors); /* Current sectors */
260 put_le16(p + 57, cur_sec); /* Current capacity */
261 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
262 if (s->mult_sectors) /* Multiple sector setting */
263 put_le16(p + 59, 0x100 | s->mult_sectors);
264 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
265 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
266 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
267 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
268 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
269 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
270 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
271 put_le16(p + 82, 0x400c); /* Command Set supported */
272 put_le16(p + 83, 0x7068); /* Command Set supported */
273 put_le16(p + 84, 0x4000); /* Features supported */
274 put_le16(p + 85, 0x000c); /* Command Set enabled */
275 put_le16(p + 86, 0x7044); /* Command Set enabled */
276 put_le16(p + 87, 0x4000); /* Features enabled */
277 put_le16(p + 91, 0x4060); /* Current APM level */
278 put_le16(p + 129, 0x0002); /* Current features option */
279 put_le16(p + 130, 0x0005); /* Reassigned sectors */
280 put_le16(p + 131, 0x0001); /* Initial power mode */
281 put_le16(p + 132, 0x0000); /* User signature */
282 put_le16(p + 160, 0x8100); /* Power requirement */
283 put_le16(p + 161, 0x8001); /* CF command set */
288 memcpy(s->io_buffer, p, sizeof(s->identify_data));
291 static void ide_set_signature(IDEState *s)
293 s->select &= 0xf0; /* clear head */
297 if (s->drive_kind == IDE_CD) {
309 typedef struct TrimAIOCB {
310 BlockDriverAIOCB common;
315 static void trim_aio_cancel(BlockDriverAIOCB *acb)
317 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
319 qemu_bh_delete(iocb->bh);
321 qemu_aio_release(iocb);
324 static AIOPool trim_aio_pool = {
325 .aiocb_size = sizeof(TrimAIOCB),
326 .cancel = trim_aio_cancel,
329 static void ide_trim_bh_cb(void *opaque)
331 TrimAIOCB *iocb = opaque;
333 iocb->common.cb(iocb->common.opaque, iocb->ret);
335 qemu_bh_delete(iocb->bh);
338 qemu_aio_release(iocb);
341 BlockDriverAIOCB *ide_issue_trim(BlockDriverState *bs,
342 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
343 BlockDriverCompletionFunc *cb, void *opaque)
348 iocb = qemu_aio_get(&trim_aio_pool, bs, cb, opaque);
349 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
352 for (j = 0; j < qiov->niov; j++) {
353 uint64_t *buffer = qiov->iov[j].iov_base;
355 for (i = 0; i < qiov->iov[j].iov_len / 8; i++) {
356 /* 6-byte LBA + 2-byte range per entry */
357 uint64_t entry = le64_to_cpu(buffer[i]);
358 uint64_t sector = entry & 0x0000ffffffffffffULL;
359 uint16_t count = entry >> 48;
365 ret = bdrv_discard(bs, sector, count);
372 qemu_bh_schedule(iocb->bh);
374 return &iocb->common;
377 static inline void ide_abort_command(IDEState *s)
379 s->status = READY_STAT | ERR_STAT;
383 /* prepare data transfer and tell what to do after */
384 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
385 EndTransferFunc *end_transfer_func)
387 s->end_transfer_func = end_transfer_func;
389 s->data_end = buf + size;
390 if (!(s->status & ERR_STAT)) {
391 s->status |= DRQ_STAT;
393 s->bus->dma->ops->start_transfer(s->bus->dma);
396 void ide_transfer_stop(IDEState *s)
398 s->end_transfer_func = ide_transfer_stop;
399 s->data_ptr = s->io_buffer;
400 s->data_end = s->io_buffer;
401 s->status &= ~DRQ_STAT;
404 int64_t ide_get_sector(IDEState *s)
407 if (s->select & 0x40) {
410 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
411 (s->lcyl << 8) | s->sector;
413 sector_num = ((int64_t)s->hob_hcyl << 40) |
414 ((int64_t) s->hob_lcyl << 32) |
415 ((int64_t) s->hob_sector << 24) |
416 ((int64_t) s->hcyl << 16) |
417 ((int64_t) s->lcyl << 8) | s->sector;
420 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
421 (s->select & 0x0f) * s->sectors + (s->sector - 1);
426 void ide_set_sector(IDEState *s, int64_t sector_num)
429 if (s->select & 0x40) {
431 s->select = (s->select & 0xf0) | (sector_num >> 24);
432 s->hcyl = (sector_num >> 16);
433 s->lcyl = (sector_num >> 8);
434 s->sector = (sector_num);
436 s->sector = sector_num;
437 s->lcyl = sector_num >> 8;
438 s->hcyl = sector_num >> 16;
439 s->hob_sector = sector_num >> 24;
440 s->hob_lcyl = sector_num >> 32;
441 s->hob_hcyl = sector_num >> 40;
444 cyl = sector_num / (s->heads * s->sectors);
445 r = sector_num % (s->heads * s->sectors);
448 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
449 s->sector = (r % s->sectors) + 1;
453 static void ide_rw_error(IDEState *s) {
454 ide_abort_command(s);
458 void ide_sector_read(IDEState *s)
463 s->status = READY_STAT | SEEK_STAT;
464 s->error = 0; /* not needed by IDE spec, but needed by Windows */
465 sector_num = ide_get_sector(s);
468 /* no more sector to read from disk */
469 ide_transfer_stop(s);
471 #if defined(DEBUG_IDE)
472 printf("read sector=%" PRId64 "\n", sector_num);
474 if (n > s->req_nb_sectors)
475 n = s->req_nb_sectors;
477 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
478 ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
479 bdrv_acct_done(s->bs, &s->acct);
481 if (ide_handle_rw_error(s, -ret,
482 BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ))
487 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
489 ide_set_sector(s, sector_num + n);
494 static void dma_buf_commit(IDEState *s, int is_write)
496 qemu_sglist_destroy(&s->sg);
499 void ide_set_inactive(IDEState *s)
501 s->bus->dma->aiocb = NULL;
502 s->bus->dma->ops->set_inactive(s->bus->dma);
505 void ide_dma_error(IDEState *s)
507 ide_transfer_stop(s);
509 s->status = READY_STAT | ERR_STAT;
514 static int ide_handle_rw_error(IDEState *s, int error, int op)
516 int is_read = (op & BM_STATUS_RETRY_READ);
517 BlockErrorAction action = bdrv_get_on_error(s->bs, is_read);
519 if (action == BLOCK_ERR_IGNORE) {
520 bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read);
524 if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
525 || action == BLOCK_ERR_STOP_ANY) {
526 s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
527 s->bus->error_status = op;
528 bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read);
529 vm_stop(VMSTOP_DISKFULL);
531 if (op & BM_STATUS_DMA_RETRY) {
532 dma_buf_commit(s, 0);
537 bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read);
543 void ide_dma_cb(void *opaque, int ret)
545 IDEState *s = opaque;
551 int op = BM_STATUS_DMA_RETRY;
553 if (s->dma_cmd == IDE_DMA_READ)
554 op |= BM_STATUS_RETRY_READ;
555 else if (s->dma_cmd == IDE_DMA_TRIM)
556 op |= BM_STATUS_RETRY_TRIM;
558 if (ide_handle_rw_error(s, -ret, op)) {
563 n = s->io_buffer_size >> 9;
564 sector_num = ide_get_sector(s);
566 dma_buf_commit(s, ide_cmd_is_read(s));
568 ide_set_sector(s, sector_num);
572 /* end of transfer ? */
573 if (s->nsector == 0) {
574 s->status = READY_STAT | SEEK_STAT;
579 /* launch next transfer */
581 s->io_buffer_index = 0;
582 s->io_buffer_size = n * 512;
583 if (s->bus->dma->ops->prepare_buf(s->bus->dma, ide_cmd_is_read(s)) == 0) {
584 /* The PRDs were too short. Reset the Active bit, but don't raise an
590 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
591 sector_num, n, s->dma_cmd);
594 switch (s->dma_cmd) {
596 s->bus->dma->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num,
600 s->bus->dma->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num,
604 s->bus->dma->aiocb = dma_bdrv_io(s->bs, &s->sg, sector_num,
605 ide_issue_trim, ide_dma_cb, s, 1);
609 if (!s->bus->dma->aiocb) {
611 goto handle_rw_error;
616 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
617 bdrv_acct_done(s->bs, &s->acct);
622 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
624 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
625 s->io_buffer_index = 0;
626 s->io_buffer_size = 0;
627 s->dma_cmd = dma_cmd;
631 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
635 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
642 s->bus->dma->ops->start_dma(s->bus->dma, s, ide_dma_cb);
645 static void ide_sector_write_timer_cb(void *opaque)
647 IDEState *s = opaque;
651 void ide_sector_write(IDEState *s)
656 s->status = READY_STAT | SEEK_STAT;
657 sector_num = ide_get_sector(s);
658 #if defined(DEBUG_IDE)
659 printf("write sector=%" PRId64 "\n", sector_num);
662 if (n > s->req_nb_sectors)
663 n = s->req_nb_sectors;
665 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
666 ret = bdrv_write(s->bs, sector_num, s->io_buffer, n);
667 bdrv_acct_done(s->bs, &s->acct);
670 if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY))
675 if (s->nsector == 0) {
676 /* no more sectors to write */
677 ide_transfer_stop(s);
680 if (n1 > s->req_nb_sectors)
681 n1 = s->req_nb_sectors;
682 ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
684 ide_set_sector(s, sector_num + n);
686 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
687 /* It seems there is a bug in the Windows 2000 installer HDD
688 IDE driver which fills the disk with empty logs when the
689 IDE write IRQ comes too early. This hack tries to correct
690 that at the expense of slower write performances. Use this
691 option _only_ to install Windows 2000. You must disable it
693 qemu_mod_timer(s->sector_write_timer,
694 qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() / 1000));
700 static void ide_flush_cb(void *opaque, int ret)
702 IDEState *s = opaque;
705 /* XXX: What sector number to set here? */
706 if (ide_handle_rw_error(s, -ret, BM_STATUS_RETRY_FLUSH)) {
711 bdrv_acct_done(s->bs, &s->acct);
712 s->status = READY_STAT | SEEK_STAT;
716 void ide_flush_cache(IDEState *s)
718 BlockDriverAIOCB *acb;
725 bdrv_acct_start(s->bs, &s->acct, 0, BDRV_ACCT_FLUSH);
726 acb = bdrv_aio_flush(s->bs, ide_flush_cb, s);
728 ide_flush_cb(s, -EIO);
732 static void ide_cfata_metadata_inquiry(IDEState *s)
737 p = (uint16_t *) s->io_buffer;
739 spd = ((s->mdata_size - 1) >> 9) + 1;
741 put_le16(p + 0, 0x0001); /* Data format revision */
742 put_le16(p + 1, 0x0000); /* Media property: silicon */
743 put_le16(p + 2, s->media_changed); /* Media status */
744 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
745 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
746 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
747 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
750 static void ide_cfata_metadata_read(IDEState *s)
754 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
755 s->status = ERR_STAT;
760 p = (uint16_t *) s->io_buffer;
763 put_le16(p + 0, s->media_changed); /* Media status */
764 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
765 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
766 s->nsector << 9), 0x200 - 2));
769 static void ide_cfata_metadata_write(IDEState *s)
771 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
772 s->status = ERR_STAT;
777 s->media_changed = 0;
779 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
781 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
782 s->nsector << 9), 0x200 - 2));
785 /* called when the inserted state of the media has changed */
786 static void cdrom_change_cb(void *opaque, int reason)
788 IDEState *s = opaque;
791 if (!(reason & CHANGE_MEDIA)) {
795 bdrv_get_geometry(s->bs, &nb_sectors);
796 s->nb_sectors = nb_sectors;
799 * First indicate to the guest that a CD has been removed. That's
800 * done on the next command the guest sends us.
802 * Then we set SENSE_UNIT_ATTENTION, by which the guest will
803 * detect a new CD in the drive. See ide_atapi_cmd() for details.
805 s->cdrom_changed = 1;
806 s->events.new_media = true;
810 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
814 /* handle the 'magic' 0 nsector count conversion here. to avoid
815 * fiddling with the rest of the read logic, we just store the
816 * full sector count in ->nsector and ignore ->hob_nsector from now
822 if (!s->nsector && !s->hob_nsector)
826 int hi = s->hob_nsector;
828 s->nsector = (hi << 8) | lo;
833 static void ide_clear_hob(IDEBus *bus)
835 /* any write clears HOB high bit of device control register */
836 bus->ifs[0].select &= ~(1 << 7);
837 bus->ifs[1].select &= ~(1 << 7);
840 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
842 IDEBus *bus = opaque;
845 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
850 /* ignore writes to command block while busy with previous command */
851 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
859 /* NOTE: data is written to the two drives */
860 bus->ifs[0].hob_feature = bus->ifs[0].feature;
861 bus->ifs[1].hob_feature = bus->ifs[1].feature;
862 bus->ifs[0].feature = val;
863 bus->ifs[1].feature = val;
867 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
868 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
869 bus->ifs[0].nsector = val;
870 bus->ifs[1].nsector = val;
874 bus->ifs[0].hob_sector = bus->ifs[0].sector;
875 bus->ifs[1].hob_sector = bus->ifs[1].sector;
876 bus->ifs[0].sector = val;
877 bus->ifs[1].sector = val;
881 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
882 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
883 bus->ifs[0].lcyl = val;
884 bus->ifs[1].lcyl = val;
888 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
889 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
890 bus->ifs[0].hcyl = val;
891 bus->ifs[1].hcyl = val;
894 /* FIXME: HOB readback uses bit 7 */
895 bus->ifs[0].select = (val & ~0x10) | 0xa0;
896 bus->ifs[1].select = (val | 0x10) | 0xa0;
898 bus->unit = (val >> 4) & 1;
903 ide_exec_cmd(bus, val);
909 void ide_exec_cmd(IDEBus *bus, uint32_t val)
915 #if defined(DEBUG_IDE)
916 printf("ide: CMD=%02x\n", val);
918 s = idebus_active_if(bus);
919 /* ignore commands to non existant slave */
920 if (s != bus->ifs && !s->bs)
923 /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
924 if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
929 switch (s->feature) {
934 ide_sector_start_dma(s, IDE_DMA_TRIM);
941 if (s->bs && s->drive_kind != IDE_CD) {
942 if (s->drive_kind != IDE_CFATA)
945 ide_cfata_identify(s);
946 s->status = READY_STAT | SEEK_STAT;
947 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
949 if (s->drive_kind == IDE_CD) {
950 ide_set_signature(s);
952 ide_abort_command(s);
959 s->status = READY_STAT | SEEK_STAT;
963 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
964 /* Disable Read and Write Multiple */
966 s->status = READY_STAT | SEEK_STAT;
967 } else if ((s->nsector & 0xff) != 0 &&
968 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
969 (s->nsector & (s->nsector - 1)) != 0)) {
970 ide_abort_command(s);
972 s->mult_sectors = s->nsector & 0xff;
973 s->status = READY_STAT | SEEK_STAT;
980 case WIN_VERIFY_ONCE:
981 /* do sector number check ? */
982 ide_cmd_lba48_transform(s, lba48);
983 s->status = READY_STAT | SEEK_STAT;
992 ide_cmd_lba48_transform(s, lba48);
993 s->req_nb_sectors = 1;
1000 case CFA_WRITE_SECT_WO_ERASE:
1001 case WIN_WRITE_VERIFY:
1002 ide_cmd_lba48_transform(s, lba48);
1004 s->status = SEEK_STAT | READY_STAT;
1005 s->req_nb_sectors = 1;
1006 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1007 s->media_changed = 1;
1009 case WIN_MULTREAD_EXT:
1012 if (!s->mult_sectors)
1014 ide_cmd_lba48_transform(s, lba48);
1015 s->req_nb_sectors = s->mult_sectors;
1018 case WIN_MULTWRITE_EXT:
1021 case CFA_WRITE_MULTI_WO_ERASE:
1022 if (!s->mult_sectors)
1024 ide_cmd_lba48_transform(s, lba48);
1026 s->status = SEEK_STAT | READY_STAT;
1027 s->req_nb_sectors = s->mult_sectors;
1029 if (n > s->req_nb_sectors)
1030 n = s->req_nb_sectors;
1031 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1032 s->media_changed = 1;
1034 case WIN_READDMA_EXT:
1037 case WIN_READDMA_ONCE:
1040 ide_cmd_lba48_transform(s, lba48);
1041 ide_sector_start_dma(s, IDE_DMA_READ);
1043 case WIN_WRITEDMA_EXT:
1046 case WIN_WRITEDMA_ONCE:
1049 ide_cmd_lba48_transform(s, lba48);
1050 ide_sector_start_dma(s, IDE_DMA_WRITE);
1051 s->media_changed = 1;
1053 case WIN_READ_NATIVE_MAX_EXT:
1055 case WIN_READ_NATIVE_MAX:
1056 ide_cmd_lba48_transform(s, lba48);
1057 ide_set_sector(s, s->nb_sectors - 1);
1058 s->status = READY_STAT | SEEK_STAT;
1059 ide_set_irq(s->bus);
1061 case WIN_CHECKPOWERMODE1:
1062 case WIN_CHECKPOWERMODE2:
1064 s->nsector = 0xff; /* device active or idle */
1065 s->status = READY_STAT | SEEK_STAT;
1066 ide_set_irq(s->bus);
1068 case WIN_SETFEATURES:
1071 /* XXX: valid for CDROM ? */
1072 switch(s->feature) {
1073 case 0xcc: /* reverting to power-on defaults enable */
1074 case 0x66: /* reverting to power-on defaults disable */
1075 case 0x02: /* write cache enable */
1076 case 0x82: /* write cache disable */
1077 case 0xaa: /* read look-ahead enable */
1078 case 0x55: /* read look-ahead disable */
1079 case 0x05: /* set advanced power management mode */
1080 case 0x85: /* disable advanced power management mode */
1081 case 0x69: /* NOP */
1082 case 0x67: /* NOP */
1083 case 0x96: /* NOP */
1084 case 0x9a: /* NOP */
1085 case 0x42: /* enable Automatic Acoustic Mode */
1086 case 0xc2: /* disable Automatic Acoustic Mode */
1087 s->status = READY_STAT | SEEK_STAT;
1088 ide_set_irq(s->bus);
1090 case 0x03: { /* set transfer mode */
1091 uint8_t val = s->nsector & 0x07;
1092 uint16_t *identify_data = (uint16_t *)s->identify_data;
1094 switch (s->nsector >> 3) {
1095 case 0x00: /* pio default */
1096 case 0x01: /* pio mode */
1097 put_le16(identify_data + 62,0x07);
1098 put_le16(identify_data + 63,0x07);
1099 put_le16(identify_data + 88,0x3f);
1101 case 0x02: /* sigle word dma mode*/
1102 put_le16(identify_data + 62,0x07 | (1 << (val + 8)));
1103 put_le16(identify_data + 63,0x07);
1104 put_le16(identify_data + 88,0x3f);
1106 case 0x04: /* mdma mode */
1107 put_le16(identify_data + 62,0x07);
1108 put_le16(identify_data + 63,0x07 | (1 << (val + 8)));
1109 put_le16(identify_data + 88,0x3f);
1111 case 0x08: /* udma mode */
1112 put_le16(identify_data + 62,0x07);
1113 put_le16(identify_data + 63,0x07);
1114 put_le16(identify_data + 88,0x3f | (1 << (val + 8)));
1119 s->status = READY_STAT | SEEK_STAT;
1120 ide_set_irq(s->bus);
1127 case WIN_FLUSH_CACHE:
1128 case WIN_FLUSH_CACHE_EXT:
1133 case WIN_STANDBYNOW1:
1134 case WIN_STANDBYNOW2:
1135 case WIN_IDLEIMMEDIATE:
1136 case CFA_IDLEIMMEDIATE:
1141 s->status = READY_STAT;
1142 ide_set_irq(s->bus);
1145 if(s->drive_kind == IDE_CD)
1147 /* XXX: Check that seek is within bounds */
1148 s->status = READY_STAT | SEEK_STAT;
1149 ide_set_irq(s->bus);
1151 /* ATAPI commands */
1153 if (s->drive_kind == IDE_CD) {
1154 ide_atapi_identify(s);
1155 s->status = READY_STAT | SEEK_STAT;
1156 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1158 ide_abort_command(s);
1160 ide_set_irq(s->bus);
1163 ide_set_signature(s);
1164 if (s->drive_kind == IDE_CD)
1165 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1166 * devices to return a clear status register
1167 * with READY_STAT *not* set. */
1169 s->status = READY_STAT | SEEK_STAT;
1170 s->error = 0x01; /* Device 0 passed, Device 1 passed or not
1173 ide_set_irq(s->bus);
1176 if (s->drive_kind != IDE_CD)
1178 ide_set_signature(s);
1179 s->status = 0x00; /* NOTE: READY is _not_ set */
1183 if (s->drive_kind != IDE_CD)
1185 /* overlapping commands not supported */
1186 if (s->feature & 0x02)
1188 s->status = READY_STAT | SEEK_STAT;
1189 s->atapi_dma = s->feature & 1;
1191 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1194 /* CF-ATA commands */
1195 case CFA_REQ_EXT_ERROR_CODE:
1196 if (s->drive_kind != IDE_CFATA)
1198 s->error = 0x09; /* miscellaneous error */
1199 s->status = READY_STAT | SEEK_STAT;
1200 ide_set_irq(s->bus);
1202 case CFA_ERASE_SECTORS:
1203 case CFA_WEAR_LEVEL:
1204 if (s->drive_kind != IDE_CFATA)
1206 if (val == CFA_WEAR_LEVEL)
1208 if (val == CFA_ERASE_SECTORS)
1209 s->media_changed = 1;
1211 s->status = READY_STAT | SEEK_STAT;
1212 ide_set_irq(s->bus);
1214 case CFA_TRANSLATE_SECTOR:
1215 if (s->drive_kind != IDE_CFATA)
1218 s->status = READY_STAT | SEEK_STAT;
1219 memset(s->io_buffer, 0, 0x200);
1220 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1221 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1222 s->io_buffer[0x02] = s->select; /* Head */
1223 s->io_buffer[0x03] = s->sector; /* Sector */
1224 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1225 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1226 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1227 s->io_buffer[0x13] = 0x00; /* Erase flag */
1228 s->io_buffer[0x18] = 0x00; /* Hot count */
1229 s->io_buffer[0x19] = 0x00; /* Hot count */
1230 s->io_buffer[0x1a] = 0x01; /* Hot count */
1231 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1232 ide_set_irq(s->bus);
1234 case CFA_ACCESS_METADATA_STORAGE:
1235 if (s->drive_kind != IDE_CFATA)
1237 switch (s->feature) {
1238 case 0x02: /* Inquiry Metadata Storage */
1239 ide_cfata_metadata_inquiry(s);
1241 case 0x03: /* Read Metadata Storage */
1242 ide_cfata_metadata_read(s);
1244 case 0x04: /* Write Metadata Storage */
1245 ide_cfata_metadata_write(s);
1250 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1251 s->status = 0x00; /* NOTE: READY is _not_ set */
1252 ide_set_irq(s->bus);
1254 case IBM_SENSE_CONDITION:
1255 if (s->drive_kind != IDE_CFATA)
1257 switch (s->feature) {
1258 case 0x01: /* sense temperature in device */
1259 s->nsector = 0x50; /* +20 C */
1264 s->status = READY_STAT | SEEK_STAT;
1265 ide_set_irq(s->bus);
1269 if (s->drive_kind == IDE_CD)
1271 if (s->hcyl != 0xc2 || s->lcyl != 0x4f)
1273 if (!s->smart_enabled && s->feature != SMART_ENABLE)
1275 switch (s->feature) {
1277 s->smart_enabled = 0;
1278 s->status = READY_STAT | SEEK_STAT;
1279 ide_set_irq(s->bus);
1282 s->smart_enabled = 1;
1283 s->status = READY_STAT | SEEK_STAT;
1284 ide_set_irq(s->bus);
1286 case SMART_ATTR_AUTOSAVE:
1287 switch (s->sector) {
1289 s->smart_autosave = 0;
1292 s->smart_autosave = 1;
1297 s->status = READY_STAT | SEEK_STAT;
1298 ide_set_irq(s->bus);
1301 if (!s->smart_errors) {
1308 s->status = READY_STAT | SEEK_STAT;
1309 ide_set_irq(s->bus);
1311 case SMART_READ_THRESH:
1312 memset(s->io_buffer, 0, 0x200);
1313 s->io_buffer[0] = 0x01; /* smart struct version */
1314 for (n=0; n<30; n++) {
1315 if (smart_attributes[n][0] == 0)
1317 s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
1318 s->io_buffer[2+1+(n*12)] = smart_attributes[n][11];
1320 for (n=0; n<511; n++) /* checksum */
1321 s->io_buffer[511] += s->io_buffer[n];
1322 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1323 s->status = READY_STAT | SEEK_STAT;
1324 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1325 ide_set_irq(s->bus);
1327 case SMART_READ_DATA:
1328 memset(s->io_buffer, 0, 0x200);
1329 s->io_buffer[0] = 0x01; /* smart struct version */
1330 for (n=0; n<30; n++) {
1331 if (smart_attributes[n][0] == 0) {
1335 for(i = 0; i < 11; i++) {
1336 s->io_buffer[2+i+(n*12)] = smart_attributes[n][i];
1339 s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00);
1340 if (s->smart_selftest_count == 0) {
1341 s->io_buffer[363] = 0;
1344 s->smart_selftest_data[3 +
1345 (s->smart_selftest_count - 1) *
1348 s->io_buffer[364] = 0x20;
1349 s->io_buffer[365] = 0x01;
1350 /* offline data collection capacity: execute + self-test*/
1351 s->io_buffer[367] = (1<<4 | 1<<3 | 1);
1352 s->io_buffer[368] = 0x03; /* smart capability (1) */
1353 s->io_buffer[369] = 0x00; /* smart capability (2) */
1354 s->io_buffer[370] = 0x01; /* error logging supported */
1355 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1356 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1357 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1359 for (n=0; n<511; n++)
1360 s->io_buffer[511] += s->io_buffer[n];
1361 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1362 s->status = READY_STAT | SEEK_STAT;
1363 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1364 ide_set_irq(s->bus);
1366 case SMART_READ_LOG:
1367 switch (s->sector) {
1368 case 0x01: /* summary smart error log */
1369 memset(s->io_buffer, 0, 0x200);
1370 s->io_buffer[0] = 0x01;
1371 s->io_buffer[1] = 0x00; /* no error entries */
1372 s->io_buffer[452] = s->smart_errors & 0xff;
1373 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1375 for (n=0; n<511; n++)
1376 s->io_buffer[511] += s->io_buffer[n];
1377 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1379 case 0x06: /* smart self test log */
1380 memset(s->io_buffer, 0, 0x200);
1381 s->io_buffer[0] = 0x01;
1382 if (s->smart_selftest_count == 0) {
1383 s->io_buffer[508] = 0;
1385 s->io_buffer[508] = s->smart_selftest_count;
1386 for (n=2; n<506; n++)
1387 s->io_buffer[n] = s->smart_selftest_data[n];
1389 for (n=0; n<511; n++)
1390 s->io_buffer[511] += s->io_buffer[n];
1391 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1396 s->status = READY_STAT | SEEK_STAT;
1397 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1398 ide_set_irq(s->bus);
1400 case SMART_EXECUTE_OFFLINE:
1401 switch (s->sector) {
1402 case 0: /* off-line routine */
1403 case 1: /* short self test */
1404 case 2: /* extended self test */
1405 s->smart_selftest_count++;
1406 if(s->smart_selftest_count > 21)
1407 s->smart_selftest_count = 0;
1408 n = 2 + (s->smart_selftest_count - 1) * 24;
1409 s->smart_selftest_data[n] = s->sector;
1410 s->smart_selftest_data[n+1] = 0x00; /* OK and finished */
1411 s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */
1412 s->smart_selftest_data[n+3] = 0x12; /* hour count msb */
1413 s->status = READY_STAT | SEEK_STAT;
1414 ide_set_irq(s->bus);
1426 ide_abort_command(s);
1427 ide_set_irq(s->bus);
1432 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
1434 IDEBus *bus = opaque;
1435 IDEState *s = idebus_active_if(bus);
1440 /* FIXME: HOB readback uses bit 7, but it's always set right now */
1441 //hob = s->select & (1 << 7);
1448 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1449 (s != bus->ifs && !s->bs))
1454 ret = s->hob_feature;
1457 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1460 ret = s->nsector & 0xff;
1462 ret = s->hob_nsector;
1465 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1470 ret = s->hob_sector;
1473 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1481 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1489 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1496 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1497 (s != bus->ifs && !s->bs))
1501 qemu_irq_lower(bus->irq);
1505 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
1510 uint32_t ide_status_read(void *opaque, uint32_t addr)
1512 IDEBus *bus = opaque;
1513 IDEState *s = idebus_active_if(bus);
1516 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1517 (s != bus->ifs && !s->bs))
1522 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
1527 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
1529 IDEBus *bus = opaque;
1534 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
1536 /* common for both drives */
1537 if (!(bus->cmd & IDE_CMD_RESET) &&
1538 (val & IDE_CMD_RESET)) {
1539 /* reset low to high */
1540 for(i = 0;i < 2; i++) {
1542 s->status = BUSY_STAT | SEEK_STAT;
1545 } else if ((bus->cmd & IDE_CMD_RESET) &&
1546 !(val & IDE_CMD_RESET)) {
1548 for(i = 0;i < 2; i++) {
1550 if (s->drive_kind == IDE_CD)
1551 s->status = 0x00; /* NOTE: READY is _not_ set */
1553 s->status = READY_STAT | SEEK_STAT;
1554 ide_set_signature(s);
1562 * Returns true if the running PIO transfer is a PIO out (i.e. data is
1563 * transferred from the device to the guest), false if it's a PIO in
1565 static bool ide_is_pio_out(IDEState *s)
1567 if (s->end_transfer_func == ide_sector_write ||
1568 s->end_transfer_func == ide_atapi_cmd) {
1570 } else if (s->end_transfer_func == ide_sector_read ||
1571 s->end_transfer_func == ide_transfer_stop ||
1572 s->end_transfer_func == ide_atapi_cmd_reply_end ||
1573 s->end_transfer_func == ide_dummy_transfer_stop) {
1580 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
1582 IDEBus *bus = opaque;
1583 IDEState *s = idebus_active_if(bus);
1586 /* PIO data access allowed only when DRQ bit is set. The result of a write
1587 * during PIO out is indeterminate, just ignore it. */
1588 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1593 *(uint16_t *)p = le16_to_cpu(val);
1596 if (p >= s->data_end)
1597 s->end_transfer_func(s);
1600 uint32_t ide_data_readw(void *opaque, uint32_t addr)
1602 IDEBus *bus = opaque;
1603 IDEState *s = idebus_active_if(bus);
1607 /* PIO data access allowed only when DRQ bit is set. The result of a read
1608 * during PIO in is indeterminate, return 0 and don't move forward. */
1609 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1614 ret = cpu_to_le16(*(uint16_t *)p);
1617 if (p >= s->data_end)
1618 s->end_transfer_func(s);
1622 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
1624 IDEBus *bus = opaque;
1625 IDEState *s = idebus_active_if(bus);
1628 /* PIO data access allowed only when DRQ bit is set. The result of a write
1629 * during PIO out is indeterminate, just ignore it. */
1630 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1635 *(uint32_t *)p = le32_to_cpu(val);
1638 if (p >= s->data_end)
1639 s->end_transfer_func(s);
1642 uint32_t ide_data_readl(void *opaque, uint32_t addr)
1644 IDEBus *bus = opaque;
1645 IDEState *s = idebus_active_if(bus);
1649 /* PIO data access allowed only when DRQ bit is set. The result of a read
1650 * during PIO in is indeterminate, return 0 and don't move forward. */
1651 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1656 ret = cpu_to_le32(*(uint32_t *)p);
1659 if (p >= s->data_end)
1660 s->end_transfer_func(s);
1664 static void ide_dummy_transfer_stop(IDEState *s)
1666 s->data_ptr = s->io_buffer;
1667 s->data_end = s->io_buffer;
1668 s->io_buffer[0] = 0xff;
1669 s->io_buffer[1] = 0xff;
1670 s->io_buffer[2] = 0xff;
1671 s->io_buffer[3] = 0xff;
1674 static void ide_reset(IDEState *s)
1677 printf("ide: reset\n");
1679 if (s->drive_kind == IDE_CFATA)
1680 s->mult_sectors = 0;
1682 s->mult_sectors = MAX_MULT_SECTORS;
1699 s->status = READY_STAT | SEEK_STAT;
1703 /* ATAPI specific */
1706 s->cdrom_changed = 0;
1707 s->packet_transfer_size = 0;
1708 s->elementary_transfer_size = 0;
1709 s->io_buffer_index = 0;
1710 s->cd_sector_size = 0;
1713 s->io_buffer_size = 0;
1714 s->req_nb_sectors = 0;
1716 ide_set_signature(s);
1717 /* init the transfer handler so that 0xffff is returned on data
1719 s->end_transfer_func = ide_dummy_transfer_stop;
1720 ide_dummy_transfer_stop(s);
1721 s->media_changed = 0;
1724 void ide_bus_reset(IDEBus *bus)
1728 ide_reset(&bus->ifs[0]);
1729 ide_reset(&bus->ifs[1]);
1732 /* pending async DMA */
1733 if (bus->dma->aiocb) {
1735 printf("aio_cancel\n");
1737 bdrv_aio_cancel(bus->dma->aiocb);
1738 bus->dma->aiocb = NULL;
1741 /* reset dma provider too */
1742 bus->dma->ops->reset(bus->dma);
1745 int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
1746 const char *version, const char *serial)
1748 int cylinders, heads, secs;
1749 uint64_t nb_sectors;
1752 s->drive_kind = kind;
1754 bdrv_get_geometry(bs, &nb_sectors);
1755 bdrv_guess_geometry(bs, &cylinders, &heads, &secs);
1756 if (cylinders < 1 || cylinders > 16383) {
1757 error_report("cyls must be between 1 and 16383");
1760 if (heads < 1 || heads > 16) {
1761 error_report("heads must be between 1 and 16");
1764 if (secs < 1 || secs > 63) {
1765 error_report("secs must be between 1 and 63");
1768 s->cylinders = cylinders;
1771 s->nb_sectors = nb_sectors;
1772 /* The SMART values should be preserved across power cycles
1774 s->smart_enabled = 1;
1775 s->smart_autosave = 1;
1776 s->smart_errors = 0;
1777 s->smart_selftest_count = 0;
1778 if (kind == IDE_CD) {
1779 bdrv_set_change_cb(bs, cdrom_change_cb, s);
1780 bs->buffer_alignment = 2048;
1782 if (!bdrv_is_inserted(s->bs)) {
1783 error_report("Device needs media, but drive is empty");
1786 if (bdrv_is_read_only(bs)) {
1787 error_report("Can't use a read-only drive");
1792 strncpy(s->drive_serial_str, serial, sizeof(s->drive_serial_str));
1794 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
1795 "QM%05d", s->drive_serial);
1798 pstrcpy(s->version, sizeof(s->version), version);
1800 pstrcpy(s->version, sizeof(s->version), QEMU_VERSION);
1804 bdrv_set_removable(bs, s->drive_kind == IDE_CD);
1808 static void ide_init1(IDEBus *bus, int unit)
1810 static int drive_serial = 1;
1811 IDEState *s = &bus->ifs[unit];
1815 s->drive_serial = drive_serial++;
1816 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
1817 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
1818 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
1819 memset(s->io_buffer, 0, s->io_buffer_total_len);
1821 s->smart_selftest_data = qemu_blockalign(s->bs, 512);
1822 memset(s->smart_selftest_data, 0, 512);
1824 s->sector_write_timer = qemu_new_timer_ns(vm_clock,
1825 ide_sector_write_timer_cb, s);
1828 static void ide_nop_start(IDEDMA *dma, IDEState *s,
1829 BlockDriverCompletionFunc *cb)
1833 static int ide_nop(IDEDMA *dma)
1838 static int ide_nop_int(IDEDMA *dma, int x)
1843 static void ide_nop_restart(void *opaque, int x, int y)
1847 static const IDEDMAOps ide_dma_nop_ops = {
1848 .start_dma = ide_nop_start,
1849 .start_transfer = ide_nop,
1850 .prepare_buf = ide_nop_int,
1851 .rw_buf = ide_nop_int,
1852 .set_unit = ide_nop_int,
1853 .add_status = ide_nop_int,
1854 .set_inactive = ide_nop,
1855 .restart_cb = ide_nop_restart,
1859 static IDEDMA ide_dma_nop = {
1860 .ops = &ide_dma_nop_ops,
1864 void ide_init2(IDEBus *bus, qemu_irq irq)
1868 for(i = 0; i < 2; i++) {
1870 ide_reset(&bus->ifs[i]);
1873 bus->dma = &ide_dma_nop;
1876 /* TODO convert users to qdev and remove */
1877 void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
1878 DriveInfo *hd1, qemu_irq irq)
1883 for(i = 0; i < 2; i++) {
1884 dinfo = i == 0 ? hd0 : hd1;
1887 if (ide_init_drive(&bus->ifs[i], dinfo->bdrv,
1888 dinfo->media_cd ? IDE_CD : IDE_HD, NULL,
1889 *dinfo->serial ? dinfo->serial : NULL) < 0) {
1890 error_report("Can't set up IDE drive %s", dinfo->id);
1894 ide_reset(&bus->ifs[i]);
1898 bus->dma = &ide_dma_nop;
1901 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2)
1903 register_ioport_write(iobase, 8, 1, ide_ioport_write, bus);
1904 register_ioport_read(iobase, 8, 1, ide_ioport_read, bus);
1906 register_ioport_read(iobase2, 1, 1, ide_status_read, bus);
1907 register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus);
1911 register_ioport_write(iobase, 2, 2, ide_data_writew, bus);
1912 register_ioport_read(iobase, 2, 2, ide_data_readw, bus);
1913 register_ioport_write(iobase, 4, 4, ide_data_writel, bus);
1914 register_ioport_read(iobase, 4, 4, ide_data_readl, bus);
1917 static bool is_identify_set(void *opaque, int version_id)
1919 IDEState *s = opaque;
1921 return s->identify_set != 0;
1924 static EndTransferFunc* transfer_end_table[] = {
1928 ide_atapi_cmd_reply_end,
1930 ide_dummy_transfer_stop,
1933 static int transfer_end_table_idx(EndTransferFunc *fn)
1937 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
1938 if (transfer_end_table[i] == fn)
1944 static int ide_drive_post_load(void *opaque, int version_id)
1946 IDEState *s = opaque;
1948 if (version_id < 3) {
1949 if (s->sense_key == SENSE_UNIT_ATTENTION &&
1950 s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
1951 s->cdrom_changed = 1;
1957 static int ide_drive_pio_post_load(void *opaque, int version_id)
1959 IDEState *s = opaque;
1961 if (s->end_transfer_fn_idx > ARRAY_SIZE(transfer_end_table)) {
1964 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
1965 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
1966 s->data_end = s->data_ptr + s->cur_io_buffer_len;
1971 static void ide_drive_pio_pre_save(void *opaque)
1973 IDEState *s = opaque;
1976 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
1977 s->cur_io_buffer_len = s->data_end - s->data_ptr;
1979 idx = transfer_end_table_idx(s->end_transfer_func);
1981 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
1983 s->end_transfer_fn_idx = 2;
1985 s->end_transfer_fn_idx = idx;
1989 static bool ide_drive_pio_state_needed(void *opaque)
1991 IDEState *s = opaque;
1993 return ((s->status & DRQ_STAT) != 0)
1994 || (s->bus->error_status & BM_STATUS_PIO_RETRY);
1997 static bool ide_atapi_gesn_needed(void *opaque)
1999 IDEState *s = opaque;
2001 return s->events.new_media || s->events.eject_request;
2004 static bool ide_error_needed(void *opaque)
2006 IDEBus *bus = opaque;
2008 return (bus->error_status != 0);
2011 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2012 const VMStateDescription vmstate_ide_atapi_gesn_state = {
2013 .name ="ide_drive/atapi/gesn_state",
2015 .minimum_version_id = 1,
2016 .minimum_version_id_old = 1,
2017 .fields = (VMStateField []) {
2018 VMSTATE_BOOL(events.new_media, IDEState),
2019 VMSTATE_BOOL(events.eject_request, IDEState),
2020 VMSTATE_END_OF_LIST()
2024 const VMStateDescription vmstate_ide_drive_pio_state = {
2025 .name = "ide_drive/pio_state",
2027 .minimum_version_id = 1,
2028 .minimum_version_id_old = 1,
2029 .pre_save = ide_drive_pio_pre_save,
2030 .post_load = ide_drive_pio_post_load,
2031 .fields = (VMStateField []) {
2032 VMSTATE_INT32(req_nb_sectors, IDEState),
2033 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2034 vmstate_info_uint8, uint8_t),
2035 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2036 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2037 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2038 VMSTATE_INT32(elementary_transfer_size, IDEState),
2039 VMSTATE_INT32(packet_transfer_size, IDEState),
2040 VMSTATE_END_OF_LIST()
2044 const VMStateDescription vmstate_ide_drive = {
2045 .name = "ide_drive",
2047 .minimum_version_id = 0,
2048 .minimum_version_id_old = 0,
2049 .post_load = ide_drive_post_load,
2050 .fields = (VMStateField []) {
2051 VMSTATE_INT32(mult_sectors, IDEState),
2052 VMSTATE_INT32(identify_set, IDEState),
2053 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2054 VMSTATE_UINT8(feature, IDEState),
2055 VMSTATE_UINT8(error, IDEState),
2056 VMSTATE_UINT32(nsector, IDEState),
2057 VMSTATE_UINT8(sector, IDEState),
2058 VMSTATE_UINT8(lcyl, IDEState),
2059 VMSTATE_UINT8(hcyl, IDEState),
2060 VMSTATE_UINT8(hob_feature, IDEState),
2061 VMSTATE_UINT8(hob_sector, IDEState),
2062 VMSTATE_UINT8(hob_nsector, IDEState),
2063 VMSTATE_UINT8(hob_lcyl, IDEState),
2064 VMSTATE_UINT8(hob_hcyl, IDEState),
2065 VMSTATE_UINT8(select, IDEState),
2066 VMSTATE_UINT8(status, IDEState),
2067 VMSTATE_UINT8(lba48, IDEState),
2068 VMSTATE_UINT8(sense_key, IDEState),
2069 VMSTATE_UINT8(asc, IDEState),
2070 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2071 VMSTATE_END_OF_LIST()
2073 .subsections = (VMStateSubsection []) {
2075 .vmsd = &vmstate_ide_drive_pio_state,
2076 .needed = ide_drive_pio_state_needed,
2078 .vmsd = &vmstate_ide_atapi_gesn_state,
2079 .needed = ide_atapi_gesn_needed,
2086 const VMStateDescription vmstate_ide_error_status = {
2087 .name ="ide_bus/error",
2089 .minimum_version_id = 1,
2090 .minimum_version_id_old = 1,
2091 .fields = (VMStateField []) {
2092 VMSTATE_INT32(error_status, IDEBus),
2093 VMSTATE_END_OF_LIST()
2097 const VMStateDescription vmstate_ide_bus = {
2100 .minimum_version_id = 1,
2101 .minimum_version_id_old = 1,
2102 .fields = (VMStateField []) {
2103 VMSTATE_UINT8(cmd, IDEBus),
2104 VMSTATE_UINT8(unit, IDEBus),
2105 VMSTATE_END_OF_LIST()
2107 .subsections = (VMStateSubsection []) {
2109 .vmsd = &vmstate_ide_error_status,
2110 .needed = ide_error_needed,
2117 void ide_drive_get(DriveInfo **hd, int max_bus)
2121 if (drive_get_max_bus(IF_IDE) >= max_bus) {
2122 fprintf(stderr, "qemu: too many IDE bus: %d\n", max_bus);
2126 for(i = 0; i < max_bus * MAX_IDE_DEVS; i++) {
2127 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);