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 ide_cd_change_cb(void *opaque)
788 IDEState *s = opaque;
791 bdrv_get_geometry(s->bs, &nb_sectors);
792 s->nb_sectors = nb_sectors;
795 * First indicate to the guest that a CD has been removed. That's
796 * done on the next command the guest sends us.
798 * Then we set SENSE_UNIT_ATTENTION, by which the guest will
799 * detect a new CD in the drive. See ide_atapi_cmd() for details.
801 s->cdrom_changed = 1;
802 s->events.new_media = true;
806 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
810 /* handle the 'magic' 0 nsector count conversion here. to avoid
811 * fiddling with the rest of the read logic, we just store the
812 * full sector count in ->nsector and ignore ->hob_nsector from now
818 if (!s->nsector && !s->hob_nsector)
822 int hi = s->hob_nsector;
824 s->nsector = (hi << 8) | lo;
829 static void ide_clear_hob(IDEBus *bus)
831 /* any write clears HOB high bit of device control register */
832 bus->ifs[0].select &= ~(1 << 7);
833 bus->ifs[1].select &= ~(1 << 7);
836 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
838 IDEBus *bus = opaque;
841 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
846 /* ignore writes to command block while busy with previous command */
847 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
855 /* NOTE: data is written to the two drives */
856 bus->ifs[0].hob_feature = bus->ifs[0].feature;
857 bus->ifs[1].hob_feature = bus->ifs[1].feature;
858 bus->ifs[0].feature = val;
859 bus->ifs[1].feature = val;
863 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
864 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
865 bus->ifs[0].nsector = val;
866 bus->ifs[1].nsector = val;
870 bus->ifs[0].hob_sector = bus->ifs[0].sector;
871 bus->ifs[1].hob_sector = bus->ifs[1].sector;
872 bus->ifs[0].sector = val;
873 bus->ifs[1].sector = val;
877 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
878 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
879 bus->ifs[0].lcyl = val;
880 bus->ifs[1].lcyl = val;
884 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
885 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
886 bus->ifs[0].hcyl = val;
887 bus->ifs[1].hcyl = val;
890 /* FIXME: HOB readback uses bit 7 */
891 bus->ifs[0].select = (val & ~0x10) | 0xa0;
892 bus->ifs[1].select = (val | 0x10) | 0xa0;
894 bus->unit = (val >> 4) & 1;
899 ide_exec_cmd(bus, val);
905 void ide_exec_cmd(IDEBus *bus, uint32_t val)
911 #if defined(DEBUG_IDE)
912 printf("ide: CMD=%02x\n", val);
914 s = idebus_active_if(bus);
915 /* ignore commands to non existant slave */
916 if (s != bus->ifs && !s->bs)
919 /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
920 if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
925 switch (s->feature) {
930 ide_sector_start_dma(s, IDE_DMA_TRIM);
937 if (s->bs && s->drive_kind != IDE_CD) {
938 if (s->drive_kind != IDE_CFATA)
941 ide_cfata_identify(s);
942 s->status = READY_STAT | SEEK_STAT;
943 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
945 if (s->drive_kind == IDE_CD) {
946 ide_set_signature(s);
948 ide_abort_command(s);
955 s->status = READY_STAT | SEEK_STAT;
959 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
960 /* Disable Read and Write Multiple */
962 s->status = READY_STAT | SEEK_STAT;
963 } else if ((s->nsector & 0xff) != 0 &&
964 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
965 (s->nsector & (s->nsector - 1)) != 0)) {
966 ide_abort_command(s);
968 s->mult_sectors = s->nsector & 0xff;
969 s->status = READY_STAT | SEEK_STAT;
976 case WIN_VERIFY_ONCE:
977 /* do sector number check ? */
978 ide_cmd_lba48_transform(s, lba48);
979 s->status = READY_STAT | SEEK_STAT;
988 ide_cmd_lba48_transform(s, lba48);
989 s->req_nb_sectors = 1;
996 case CFA_WRITE_SECT_WO_ERASE:
997 case WIN_WRITE_VERIFY:
998 ide_cmd_lba48_transform(s, lba48);
1000 s->status = SEEK_STAT | READY_STAT;
1001 s->req_nb_sectors = 1;
1002 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1003 s->media_changed = 1;
1005 case WIN_MULTREAD_EXT:
1008 if (!s->mult_sectors)
1010 ide_cmd_lba48_transform(s, lba48);
1011 s->req_nb_sectors = s->mult_sectors;
1014 case WIN_MULTWRITE_EXT:
1017 case CFA_WRITE_MULTI_WO_ERASE:
1018 if (!s->mult_sectors)
1020 ide_cmd_lba48_transform(s, lba48);
1022 s->status = SEEK_STAT | READY_STAT;
1023 s->req_nb_sectors = s->mult_sectors;
1025 if (n > s->req_nb_sectors)
1026 n = s->req_nb_sectors;
1027 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1028 s->media_changed = 1;
1030 case WIN_READDMA_EXT:
1033 case WIN_READDMA_ONCE:
1036 ide_cmd_lba48_transform(s, lba48);
1037 ide_sector_start_dma(s, IDE_DMA_READ);
1039 case WIN_WRITEDMA_EXT:
1042 case WIN_WRITEDMA_ONCE:
1045 ide_cmd_lba48_transform(s, lba48);
1046 ide_sector_start_dma(s, IDE_DMA_WRITE);
1047 s->media_changed = 1;
1049 case WIN_READ_NATIVE_MAX_EXT:
1051 case WIN_READ_NATIVE_MAX:
1052 ide_cmd_lba48_transform(s, lba48);
1053 ide_set_sector(s, s->nb_sectors - 1);
1054 s->status = READY_STAT | SEEK_STAT;
1055 ide_set_irq(s->bus);
1057 case WIN_CHECKPOWERMODE1:
1058 case WIN_CHECKPOWERMODE2:
1060 s->nsector = 0xff; /* device active or idle */
1061 s->status = READY_STAT | SEEK_STAT;
1062 ide_set_irq(s->bus);
1064 case WIN_SETFEATURES:
1067 /* XXX: valid for CDROM ? */
1068 switch(s->feature) {
1069 case 0xcc: /* reverting to power-on defaults enable */
1070 case 0x66: /* reverting to power-on defaults disable */
1071 case 0x02: /* write cache enable */
1072 case 0x82: /* write cache disable */
1073 case 0xaa: /* read look-ahead enable */
1074 case 0x55: /* read look-ahead disable */
1075 case 0x05: /* set advanced power management mode */
1076 case 0x85: /* disable advanced power management mode */
1077 case 0x69: /* NOP */
1078 case 0x67: /* NOP */
1079 case 0x96: /* NOP */
1080 case 0x9a: /* NOP */
1081 case 0x42: /* enable Automatic Acoustic Mode */
1082 case 0xc2: /* disable Automatic Acoustic Mode */
1083 s->status = READY_STAT | SEEK_STAT;
1084 ide_set_irq(s->bus);
1086 case 0x03: { /* set transfer mode */
1087 uint8_t val = s->nsector & 0x07;
1088 uint16_t *identify_data = (uint16_t *)s->identify_data;
1090 switch (s->nsector >> 3) {
1091 case 0x00: /* pio default */
1092 case 0x01: /* pio mode */
1093 put_le16(identify_data + 62,0x07);
1094 put_le16(identify_data + 63,0x07);
1095 put_le16(identify_data + 88,0x3f);
1097 case 0x02: /* sigle word dma mode*/
1098 put_le16(identify_data + 62,0x07 | (1 << (val + 8)));
1099 put_le16(identify_data + 63,0x07);
1100 put_le16(identify_data + 88,0x3f);
1102 case 0x04: /* mdma mode */
1103 put_le16(identify_data + 62,0x07);
1104 put_le16(identify_data + 63,0x07 | (1 << (val + 8)));
1105 put_le16(identify_data + 88,0x3f);
1107 case 0x08: /* udma mode */
1108 put_le16(identify_data + 62,0x07);
1109 put_le16(identify_data + 63,0x07);
1110 put_le16(identify_data + 88,0x3f | (1 << (val + 8)));
1115 s->status = READY_STAT | SEEK_STAT;
1116 ide_set_irq(s->bus);
1123 case WIN_FLUSH_CACHE:
1124 case WIN_FLUSH_CACHE_EXT:
1129 case WIN_STANDBYNOW1:
1130 case WIN_STANDBYNOW2:
1131 case WIN_IDLEIMMEDIATE:
1132 case WIN_IDLEIMMEDIATE2:
1137 s->status = READY_STAT;
1138 ide_set_irq(s->bus);
1141 if(s->drive_kind == IDE_CD)
1143 /* XXX: Check that seek is within bounds */
1144 s->status = READY_STAT | SEEK_STAT;
1145 ide_set_irq(s->bus);
1147 /* ATAPI commands */
1149 if (s->drive_kind == IDE_CD) {
1150 ide_atapi_identify(s);
1151 s->status = READY_STAT | SEEK_STAT;
1152 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1154 ide_abort_command(s);
1156 ide_set_irq(s->bus);
1159 ide_set_signature(s);
1160 if (s->drive_kind == IDE_CD)
1161 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1162 * devices to return a clear status register
1163 * with READY_STAT *not* set. */
1165 s->status = READY_STAT | SEEK_STAT;
1166 s->error = 0x01; /* Device 0 passed, Device 1 passed or not
1169 ide_set_irq(s->bus);
1171 case WIN_DEVICE_RESET:
1172 if (s->drive_kind != IDE_CD)
1174 ide_set_signature(s);
1175 s->status = 0x00; /* NOTE: READY is _not_ set */
1179 if (s->drive_kind != IDE_CD)
1181 /* overlapping commands not supported */
1182 if (s->feature & 0x02)
1184 s->status = READY_STAT | SEEK_STAT;
1185 s->atapi_dma = s->feature & 1;
1187 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1190 /* CF-ATA commands */
1191 case CFA_REQ_EXT_ERROR_CODE:
1192 if (s->drive_kind != IDE_CFATA)
1194 s->error = 0x09; /* miscellaneous error */
1195 s->status = READY_STAT | SEEK_STAT;
1196 ide_set_irq(s->bus);
1198 case CFA_ERASE_SECTORS:
1199 case CFA_WEAR_LEVEL:
1200 if (s->drive_kind != IDE_CFATA)
1202 if (val == CFA_WEAR_LEVEL)
1204 if (val == CFA_ERASE_SECTORS)
1205 s->media_changed = 1;
1207 s->status = READY_STAT | SEEK_STAT;
1208 ide_set_irq(s->bus);
1210 case CFA_TRANSLATE_SECTOR:
1211 if (s->drive_kind != IDE_CFATA)
1214 s->status = READY_STAT | SEEK_STAT;
1215 memset(s->io_buffer, 0, 0x200);
1216 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1217 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1218 s->io_buffer[0x02] = s->select; /* Head */
1219 s->io_buffer[0x03] = s->sector; /* Sector */
1220 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1221 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1222 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1223 s->io_buffer[0x13] = 0x00; /* Erase flag */
1224 s->io_buffer[0x18] = 0x00; /* Hot count */
1225 s->io_buffer[0x19] = 0x00; /* Hot count */
1226 s->io_buffer[0x1a] = 0x01; /* Hot count */
1227 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1228 ide_set_irq(s->bus);
1230 case CFA_ACCESS_METADATA_STORAGE:
1231 if (s->drive_kind != IDE_CFATA)
1233 switch (s->feature) {
1234 case 0x02: /* Inquiry Metadata Storage */
1235 ide_cfata_metadata_inquiry(s);
1237 case 0x03: /* Read Metadata Storage */
1238 ide_cfata_metadata_read(s);
1240 case 0x04: /* Write Metadata Storage */
1241 ide_cfata_metadata_write(s);
1246 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1247 s->status = 0x00; /* NOTE: READY is _not_ set */
1248 ide_set_irq(s->bus);
1250 case IBM_SENSE_CONDITION:
1251 if (s->drive_kind != IDE_CFATA)
1253 switch (s->feature) {
1254 case 0x01: /* sense temperature in device */
1255 s->nsector = 0x50; /* +20 C */
1260 s->status = READY_STAT | SEEK_STAT;
1261 ide_set_irq(s->bus);
1265 if (s->drive_kind == IDE_CD)
1267 if (s->hcyl != 0xc2 || s->lcyl != 0x4f)
1269 if (!s->smart_enabled && s->feature != SMART_ENABLE)
1271 switch (s->feature) {
1273 s->smart_enabled = 0;
1274 s->status = READY_STAT | SEEK_STAT;
1275 ide_set_irq(s->bus);
1278 s->smart_enabled = 1;
1279 s->status = READY_STAT | SEEK_STAT;
1280 ide_set_irq(s->bus);
1282 case SMART_ATTR_AUTOSAVE:
1283 switch (s->sector) {
1285 s->smart_autosave = 0;
1288 s->smart_autosave = 1;
1293 s->status = READY_STAT | SEEK_STAT;
1294 ide_set_irq(s->bus);
1297 if (!s->smart_errors) {
1304 s->status = READY_STAT | SEEK_STAT;
1305 ide_set_irq(s->bus);
1307 case SMART_READ_THRESH:
1308 memset(s->io_buffer, 0, 0x200);
1309 s->io_buffer[0] = 0x01; /* smart struct version */
1310 for (n=0; n<30; n++) {
1311 if (smart_attributes[n][0] == 0)
1313 s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
1314 s->io_buffer[2+1+(n*12)] = smart_attributes[n][11];
1316 for (n=0; n<511; n++) /* checksum */
1317 s->io_buffer[511] += s->io_buffer[n];
1318 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1319 s->status = READY_STAT | SEEK_STAT;
1320 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1321 ide_set_irq(s->bus);
1323 case SMART_READ_DATA:
1324 memset(s->io_buffer, 0, 0x200);
1325 s->io_buffer[0] = 0x01; /* smart struct version */
1326 for (n=0; n<30; n++) {
1327 if (smart_attributes[n][0] == 0) {
1331 for(i = 0; i < 11; i++) {
1332 s->io_buffer[2+i+(n*12)] = smart_attributes[n][i];
1335 s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00);
1336 if (s->smart_selftest_count == 0) {
1337 s->io_buffer[363] = 0;
1340 s->smart_selftest_data[3 +
1341 (s->smart_selftest_count - 1) *
1344 s->io_buffer[364] = 0x20;
1345 s->io_buffer[365] = 0x01;
1346 /* offline data collection capacity: execute + self-test*/
1347 s->io_buffer[367] = (1<<4 | 1<<3 | 1);
1348 s->io_buffer[368] = 0x03; /* smart capability (1) */
1349 s->io_buffer[369] = 0x00; /* smart capability (2) */
1350 s->io_buffer[370] = 0x01; /* error logging supported */
1351 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1352 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1353 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1355 for (n=0; n<511; n++)
1356 s->io_buffer[511] += s->io_buffer[n];
1357 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1358 s->status = READY_STAT | SEEK_STAT;
1359 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1360 ide_set_irq(s->bus);
1362 case SMART_READ_LOG:
1363 switch (s->sector) {
1364 case 0x01: /* summary smart error log */
1365 memset(s->io_buffer, 0, 0x200);
1366 s->io_buffer[0] = 0x01;
1367 s->io_buffer[1] = 0x00; /* no error entries */
1368 s->io_buffer[452] = s->smart_errors & 0xff;
1369 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1371 for (n=0; n<511; n++)
1372 s->io_buffer[511] += s->io_buffer[n];
1373 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1375 case 0x06: /* smart self test log */
1376 memset(s->io_buffer, 0, 0x200);
1377 s->io_buffer[0] = 0x01;
1378 if (s->smart_selftest_count == 0) {
1379 s->io_buffer[508] = 0;
1381 s->io_buffer[508] = s->smart_selftest_count;
1382 for (n=2; n<506; n++)
1383 s->io_buffer[n] = s->smart_selftest_data[n];
1385 for (n=0; n<511; n++)
1386 s->io_buffer[511] += s->io_buffer[n];
1387 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1392 s->status = READY_STAT | SEEK_STAT;
1393 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1394 ide_set_irq(s->bus);
1396 case SMART_EXECUTE_OFFLINE:
1397 switch (s->sector) {
1398 case 0: /* off-line routine */
1399 case 1: /* short self test */
1400 case 2: /* extended self test */
1401 s->smart_selftest_count++;
1402 if(s->smart_selftest_count > 21)
1403 s->smart_selftest_count = 0;
1404 n = 2 + (s->smart_selftest_count - 1) * 24;
1405 s->smart_selftest_data[n] = s->sector;
1406 s->smart_selftest_data[n+1] = 0x00; /* OK and finished */
1407 s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */
1408 s->smart_selftest_data[n+3] = 0x12; /* hour count msb */
1409 s->status = READY_STAT | SEEK_STAT;
1410 ide_set_irq(s->bus);
1422 ide_abort_command(s);
1423 ide_set_irq(s->bus);
1428 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
1430 IDEBus *bus = opaque;
1431 IDEState *s = idebus_active_if(bus);
1436 /* FIXME: HOB readback uses bit 7, but it's always set right now */
1437 //hob = s->select & (1 << 7);
1444 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1445 (s != bus->ifs && !s->bs))
1450 ret = s->hob_feature;
1453 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1456 ret = s->nsector & 0xff;
1458 ret = s->hob_nsector;
1461 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1466 ret = s->hob_sector;
1469 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1477 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1485 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1492 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1493 (s != bus->ifs && !s->bs))
1497 qemu_irq_lower(bus->irq);
1501 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
1506 uint32_t ide_status_read(void *opaque, uint32_t addr)
1508 IDEBus *bus = opaque;
1509 IDEState *s = idebus_active_if(bus);
1512 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1513 (s != bus->ifs && !s->bs))
1518 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
1523 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
1525 IDEBus *bus = opaque;
1530 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
1532 /* common for both drives */
1533 if (!(bus->cmd & IDE_CMD_RESET) &&
1534 (val & IDE_CMD_RESET)) {
1535 /* reset low to high */
1536 for(i = 0;i < 2; i++) {
1538 s->status = BUSY_STAT | SEEK_STAT;
1541 } else if ((bus->cmd & IDE_CMD_RESET) &&
1542 !(val & IDE_CMD_RESET)) {
1544 for(i = 0;i < 2; i++) {
1546 if (s->drive_kind == IDE_CD)
1547 s->status = 0x00; /* NOTE: READY is _not_ set */
1549 s->status = READY_STAT | SEEK_STAT;
1550 ide_set_signature(s);
1558 * Returns true if the running PIO transfer is a PIO out (i.e. data is
1559 * transferred from the device to the guest), false if it's a PIO in
1561 static bool ide_is_pio_out(IDEState *s)
1563 if (s->end_transfer_func == ide_sector_write ||
1564 s->end_transfer_func == ide_atapi_cmd) {
1566 } else if (s->end_transfer_func == ide_sector_read ||
1567 s->end_transfer_func == ide_transfer_stop ||
1568 s->end_transfer_func == ide_atapi_cmd_reply_end ||
1569 s->end_transfer_func == ide_dummy_transfer_stop) {
1576 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
1578 IDEBus *bus = opaque;
1579 IDEState *s = idebus_active_if(bus);
1582 /* PIO data access allowed only when DRQ bit is set. The result of a write
1583 * during PIO out is indeterminate, just ignore it. */
1584 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1589 *(uint16_t *)p = le16_to_cpu(val);
1592 if (p >= s->data_end)
1593 s->end_transfer_func(s);
1596 uint32_t ide_data_readw(void *opaque, uint32_t addr)
1598 IDEBus *bus = opaque;
1599 IDEState *s = idebus_active_if(bus);
1603 /* PIO data access allowed only when DRQ bit is set. The result of a read
1604 * during PIO in is indeterminate, return 0 and don't move forward. */
1605 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1610 ret = cpu_to_le16(*(uint16_t *)p);
1613 if (p >= s->data_end)
1614 s->end_transfer_func(s);
1618 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
1620 IDEBus *bus = opaque;
1621 IDEState *s = idebus_active_if(bus);
1624 /* PIO data access allowed only when DRQ bit is set. The result of a write
1625 * during PIO out is indeterminate, just ignore it. */
1626 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1631 *(uint32_t *)p = le32_to_cpu(val);
1634 if (p >= s->data_end)
1635 s->end_transfer_func(s);
1638 uint32_t ide_data_readl(void *opaque, uint32_t addr)
1640 IDEBus *bus = opaque;
1641 IDEState *s = idebus_active_if(bus);
1645 /* PIO data access allowed only when DRQ bit is set. The result of a read
1646 * during PIO in is indeterminate, return 0 and don't move forward. */
1647 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1652 ret = cpu_to_le32(*(uint32_t *)p);
1655 if (p >= s->data_end)
1656 s->end_transfer_func(s);
1660 static void ide_dummy_transfer_stop(IDEState *s)
1662 s->data_ptr = s->io_buffer;
1663 s->data_end = s->io_buffer;
1664 s->io_buffer[0] = 0xff;
1665 s->io_buffer[1] = 0xff;
1666 s->io_buffer[2] = 0xff;
1667 s->io_buffer[3] = 0xff;
1670 static void ide_reset(IDEState *s)
1673 printf("ide: reset\n");
1675 if (s->drive_kind == IDE_CFATA)
1676 s->mult_sectors = 0;
1678 s->mult_sectors = MAX_MULT_SECTORS;
1695 s->status = READY_STAT | SEEK_STAT;
1699 /* ATAPI specific */
1702 s->cdrom_changed = 0;
1703 s->packet_transfer_size = 0;
1704 s->elementary_transfer_size = 0;
1705 s->io_buffer_index = 0;
1706 s->cd_sector_size = 0;
1709 s->io_buffer_size = 0;
1710 s->req_nb_sectors = 0;
1712 ide_set_signature(s);
1713 /* init the transfer handler so that 0xffff is returned on data
1715 s->end_transfer_func = ide_dummy_transfer_stop;
1716 ide_dummy_transfer_stop(s);
1717 s->media_changed = 0;
1720 void ide_bus_reset(IDEBus *bus)
1724 ide_reset(&bus->ifs[0]);
1725 ide_reset(&bus->ifs[1]);
1728 /* pending async DMA */
1729 if (bus->dma->aiocb) {
1731 printf("aio_cancel\n");
1733 bdrv_aio_cancel(bus->dma->aiocb);
1734 bus->dma->aiocb = NULL;
1737 /* reset dma provider too */
1738 bus->dma->ops->reset(bus->dma);
1741 static const BlockDevOps ide_cd_block_ops = {
1742 .change_media_cb = ide_cd_change_cb,
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_dev_ops(bs, &ide_cd_block_ops, 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);
1893 bdrv_attach_dev_nofail(dinfo->bdrv, &bus->ifs[i]);
1895 ide_reset(&bus->ifs[i]);
1899 bus->dma = &ide_dma_nop;
1902 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2)
1904 register_ioport_write(iobase, 8, 1, ide_ioport_write, bus);
1905 register_ioport_read(iobase, 8, 1, ide_ioport_read, bus);
1907 register_ioport_read(iobase2, 1, 1, ide_status_read, bus);
1908 register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus);
1912 register_ioport_write(iobase, 2, 2, ide_data_writew, bus);
1913 register_ioport_read(iobase, 2, 2, ide_data_readw, bus);
1914 register_ioport_write(iobase, 4, 4, ide_data_writel, bus);
1915 register_ioport_read(iobase, 4, 4, ide_data_readl, bus);
1918 static bool is_identify_set(void *opaque, int version_id)
1920 IDEState *s = opaque;
1922 return s->identify_set != 0;
1925 static EndTransferFunc* transfer_end_table[] = {
1929 ide_atapi_cmd_reply_end,
1931 ide_dummy_transfer_stop,
1934 static int transfer_end_table_idx(EndTransferFunc *fn)
1938 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
1939 if (transfer_end_table[i] == fn)
1945 static int ide_drive_post_load(void *opaque, int version_id)
1947 IDEState *s = opaque;
1949 if (version_id < 3) {
1950 if (s->sense_key == SENSE_UNIT_ATTENTION &&
1951 s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
1952 s->cdrom_changed = 1;
1958 static int ide_drive_pio_post_load(void *opaque, int version_id)
1960 IDEState *s = opaque;
1962 if (s->end_transfer_fn_idx > ARRAY_SIZE(transfer_end_table)) {
1965 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
1966 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
1967 s->data_end = s->data_ptr + s->cur_io_buffer_len;
1972 static void ide_drive_pio_pre_save(void *opaque)
1974 IDEState *s = opaque;
1977 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
1978 s->cur_io_buffer_len = s->data_end - s->data_ptr;
1980 idx = transfer_end_table_idx(s->end_transfer_func);
1982 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
1984 s->end_transfer_fn_idx = 2;
1986 s->end_transfer_fn_idx = idx;
1990 static bool ide_drive_pio_state_needed(void *opaque)
1992 IDEState *s = opaque;
1994 return ((s->status & DRQ_STAT) != 0)
1995 || (s->bus->error_status & BM_STATUS_PIO_RETRY);
1998 static bool ide_atapi_gesn_needed(void *opaque)
2000 IDEState *s = opaque;
2002 return s->events.new_media || s->events.eject_request;
2005 static bool ide_error_needed(void *opaque)
2007 IDEBus *bus = opaque;
2009 return (bus->error_status != 0);
2012 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2013 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2014 .name ="ide_drive/atapi/gesn_state",
2016 .minimum_version_id = 1,
2017 .minimum_version_id_old = 1,
2018 .fields = (VMStateField []) {
2019 VMSTATE_BOOL(events.new_media, IDEState),
2020 VMSTATE_BOOL(events.eject_request, IDEState),
2021 VMSTATE_END_OF_LIST()
2025 static const VMStateDescription vmstate_ide_drive_pio_state = {
2026 .name = "ide_drive/pio_state",
2028 .minimum_version_id = 1,
2029 .minimum_version_id_old = 1,
2030 .pre_save = ide_drive_pio_pre_save,
2031 .post_load = ide_drive_pio_post_load,
2032 .fields = (VMStateField []) {
2033 VMSTATE_INT32(req_nb_sectors, IDEState),
2034 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2035 vmstate_info_uint8, uint8_t),
2036 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2037 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2038 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2039 VMSTATE_INT32(elementary_transfer_size, IDEState),
2040 VMSTATE_INT32(packet_transfer_size, IDEState),
2041 VMSTATE_END_OF_LIST()
2045 const VMStateDescription vmstate_ide_drive = {
2046 .name = "ide_drive",
2048 .minimum_version_id = 0,
2049 .minimum_version_id_old = 0,
2050 .post_load = ide_drive_post_load,
2051 .fields = (VMStateField []) {
2052 VMSTATE_INT32(mult_sectors, IDEState),
2053 VMSTATE_INT32(identify_set, IDEState),
2054 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2055 VMSTATE_UINT8(feature, IDEState),
2056 VMSTATE_UINT8(error, IDEState),
2057 VMSTATE_UINT32(nsector, IDEState),
2058 VMSTATE_UINT8(sector, IDEState),
2059 VMSTATE_UINT8(lcyl, IDEState),
2060 VMSTATE_UINT8(hcyl, IDEState),
2061 VMSTATE_UINT8(hob_feature, IDEState),
2062 VMSTATE_UINT8(hob_sector, IDEState),
2063 VMSTATE_UINT8(hob_nsector, IDEState),
2064 VMSTATE_UINT8(hob_lcyl, IDEState),
2065 VMSTATE_UINT8(hob_hcyl, IDEState),
2066 VMSTATE_UINT8(select, IDEState),
2067 VMSTATE_UINT8(status, IDEState),
2068 VMSTATE_UINT8(lba48, IDEState),
2069 VMSTATE_UINT8(sense_key, IDEState),
2070 VMSTATE_UINT8(asc, IDEState),
2071 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2072 VMSTATE_END_OF_LIST()
2074 .subsections = (VMStateSubsection []) {
2076 .vmsd = &vmstate_ide_drive_pio_state,
2077 .needed = ide_drive_pio_state_needed,
2079 .vmsd = &vmstate_ide_atapi_gesn_state,
2080 .needed = ide_atapi_gesn_needed,
2087 static const VMStateDescription vmstate_ide_error_status = {
2088 .name ="ide_bus/error",
2090 .minimum_version_id = 1,
2091 .minimum_version_id_old = 1,
2092 .fields = (VMStateField []) {
2093 VMSTATE_INT32(error_status, IDEBus),
2094 VMSTATE_END_OF_LIST()
2098 const VMStateDescription vmstate_ide_bus = {
2101 .minimum_version_id = 1,
2102 .minimum_version_id_old = 1,
2103 .fields = (VMStateField []) {
2104 VMSTATE_UINT8(cmd, IDEBus),
2105 VMSTATE_UINT8(unit, IDEBus),
2106 VMSTATE_END_OF_LIST()
2108 .subsections = (VMStateSubsection []) {
2110 .vmsd = &vmstate_ide_error_status,
2111 .needed = ide_error_needed,
2118 void ide_drive_get(DriveInfo **hd, int max_bus)
2122 if (drive_get_max_bus(IF_IDE) >= max_bus) {
2123 fprintf(stderr, "qemu: too many IDE bus: %d\n", max_bus);
2127 for(i = 0; i < max_bus * MAX_IDE_DEVS; i++) {
2128 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);