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[qemu.git] / hw / ide / core.c
1 /*
2 * QEMU IDE disk and CD/DVD-ROM Emulator
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
6 *
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:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
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
23 * THE SOFTWARE.
24 */
25 #include <hw/hw.h>
26 #include <hw/pc.h>
27 #include <hw/pci.h>
28 #include <hw/isa.h>
29 #include "qemu-error.h"
30 #include "qemu-timer.h"
31 #include "sysemu.h"
32 #include "dma.h"
33 #include "hw/block-common.h"
34 #include "blockdev.h"
35
36 #include <hw/ide/internal.h>
37
38 /* These values were based on a Seagate ST3500418AS but have been modified
39 to make more sense in QEMU */
40 static const int smart_attributes[][12] = {
41 /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
42 /* raw read error rate*/
43 { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
44 /* spin up */
45 { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
46 /* start stop count */
47 { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
48 /* remapped sectors */
49 { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
50 /* power on hours */
51 { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
52 /* power cycle count */
53 { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
54 /* airflow-temperature-celsius */
55 { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
56 /* end of list */
57 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
58 };
59
60 static int ide_handle_rw_error(IDEState *s, int error, int op);
61 static void ide_dummy_transfer_stop(IDEState *s);
62
63 static void padstr(char *str, const char *src, int len)
64 {
65 int i, v;
66 for(i = 0; i < len; i++) {
67 if (*src)
68 v = *src++;
69 else
70 v = ' ';
71 str[i^1] = v;
72 }
73 }
74
75 static void put_le16(uint16_t *p, unsigned int v)
76 {
77 *p = cpu_to_le16(v);
78 }
79
80 static void ide_identify(IDEState *s)
81 {
82 uint16_t *p;
83 unsigned int oldsize;
84 IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
85
86 if (s->identify_set) {
87 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
88 return;
89 }
90
91 memset(s->io_buffer, 0, 512);
92 p = (uint16_t *)s->io_buffer;
93 put_le16(p + 0, 0x0040);
94 put_le16(p + 1, s->cylinders);
95 put_le16(p + 3, s->heads);
96 put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
97 put_le16(p + 5, 512); /* XXX: retired, remove ? */
98 put_le16(p + 6, s->sectors);
99 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
100 put_le16(p + 20, 3); /* XXX: retired, remove ? */
101 put_le16(p + 21, 512); /* cache size in sectors */
102 put_le16(p + 22, 4); /* ecc bytes */
103 padstr((char *)(p + 23), s->version, 8); /* firmware version */
104 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
105 #if MAX_MULT_SECTORS > 1
106 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
107 #endif
108 put_le16(p + 48, 1); /* dword I/O */
109 put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
110 put_le16(p + 51, 0x200); /* PIO transfer cycle */
111 put_le16(p + 52, 0x200); /* DMA transfer cycle */
112 put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
113 put_le16(p + 54, s->cylinders);
114 put_le16(p + 55, s->heads);
115 put_le16(p + 56, s->sectors);
116 oldsize = s->cylinders * s->heads * s->sectors;
117 put_le16(p + 57, oldsize);
118 put_le16(p + 58, oldsize >> 16);
119 if (s->mult_sectors)
120 put_le16(p + 59, 0x100 | s->mult_sectors);
121 put_le16(p + 60, s->nb_sectors);
122 put_le16(p + 61, s->nb_sectors >> 16);
123 put_le16(p + 62, 0x07); /* single word dma0-2 supported */
124 put_le16(p + 63, 0x07); /* mdma0-2 supported */
125 put_le16(p + 64, 0x03); /* pio3-4 supported */
126 put_le16(p + 65, 120);
127 put_le16(p + 66, 120);
128 put_le16(p + 67, 120);
129 put_le16(p + 68, 120);
130 if (dev && dev->conf.discard_granularity) {
131 put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
132 }
133
134 if (s->ncq_queues) {
135 put_le16(p + 75, s->ncq_queues - 1);
136 /* NCQ supported */
137 put_le16(p + 76, (1 << 8));
138 }
139
140 put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
141 put_le16(p + 81, 0x16); /* conforms to ata5 */
142 /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
143 put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
144 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
145 put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
146 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
147 if (s->wwn) {
148 put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
149 } else {
150 put_le16(p + 84, (1 << 14) | 0);
151 }
152 /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
153 if (bdrv_enable_write_cache(s->bs))
154 put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
155 else
156 put_le16(p + 85, (1 << 14) | 1);
157 /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
158 put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
159 /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
160 if (s->wwn) {
161 put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
162 } else {
163 put_le16(p + 87, (1 << 14) | 0);
164 }
165 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
166 put_le16(p + 93, 1 | (1 << 14) | 0x2000);
167 put_le16(p + 100, s->nb_sectors);
168 put_le16(p + 101, s->nb_sectors >> 16);
169 put_le16(p + 102, s->nb_sectors >> 32);
170 put_le16(p + 103, s->nb_sectors >> 48);
171
172 if (dev && dev->conf.physical_block_size)
173 put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
174 if (s->wwn) {
175 /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
176 put_le16(p + 108, s->wwn >> 48);
177 put_le16(p + 109, s->wwn >> 32);
178 put_le16(p + 110, s->wwn >> 16);
179 put_le16(p + 111, s->wwn);
180 }
181 if (dev && dev->conf.discard_granularity) {
182 put_le16(p + 169, 1); /* TRIM support */
183 }
184
185 memcpy(s->identify_data, p, sizeof(s->identify_data));
186 s->identify_set = 1;
187 }
188
189 static void ide_atapi_identify(IDEState *s)
190 {
191 uint16_t *p;
192
193 if (s->identify_set) {
194 memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
195 return;
196 }
197
198 memset(s->io_buffer, 0, 512);
199 p = (uint16_t *)s->io_buffer;
200 /* Removable CDROM, 50us response, 12 byte packets */
201 put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
202 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
203 put_le16(p + 20, 3); /* buffer type */
204 put_le16(p + 21, 512); /* cache size in sectors */
205 put_le16(p + 22, 4); /* ecc bytes */
206 padstr((char *)(p + 23), s->version, 8); /* firmware version */
207 padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
208 put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
209 #ifdef USE_DMA_CDROM
210 put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
211 put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
212 put_le16(p + 62, 7); /* single word dma0-2 supported */
213 put_le16(p + 63, 7); /* mdma0-2 supported */
214 #else
215 put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
216 put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
217 put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
218 #endif
219 put_le16(p + 64, 3); /* pio3-4 supported */
220 put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
221 put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
222 put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
223 put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
224
225 put_le16(p + 71, 30); /* in ns */
226 put_le16(p + 72, 30); /* in ns */
227
228 if (s->ncq_queues) {
229 put_le16(p + 75, s->ncq_queues - 1);
230 /* NCQ supported */
231 put_le16(p + 76, (1 << 8));
232 }
233
234 put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
235 #ifdef USE_DMA_CDROM
236 put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
237 #endif
238 memcpy(s->identify_data, p, sizeof(s->identify_data));
239 s->identify_set = 1;
240 }
241
242 static void ide_cfata_identify(IDEState *s)
243 {
244 uint16_t *p;
245 uint32_t cur_sec;
246
247 p = (uint16_t *) s->identify_data;
248 if (s->identify_set)
249 goto fill_buffer;
250
251 memset(p, 0, sizeof(s->identify_data));
252
253 cur_sec = s->cylinders * s->heads * s->sectors;
254
255 put_le16(p + 0, 0x848a); /* CF Storage Card signature */
256 put_le16(p + 1, s->cylinders); /* Default cylinders */
257 put_le16(p + 3, s->heads); /* Default heads */
258 put_le16(p + 6, s->sectors); /* Default sectors per track */
259 put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
260 put_le16(p + 8, s->nb_sectors); /* Sectors per card */
261 padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
262 put_le16(p + 22, 0x0004); /* ECC bytes */
263 padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
264 padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
265 #if MAX_MULT_SECTORS > 1
266 put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
267 #else
268 put_le16(p + 47, 0x0000);
269 #endif
270 put_le16(p + 49, 0x0f00); /* Capabilities */
271 put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
272 put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
273 put_le16(p + 53, 0x0003); /* Translation params valid */
274 put_le16(p + 54, s->cylinders); /* Current cylinders */
275 put_le16(p + 55, s->heads); /* Current heads */
276 put_le16(p + 56, s->sectors); /* Current sectors */
277 put_le16(p + 57, cur_sec); /* Current capacity */
278 put_le16(p + 58, cur_sec >> 16); /* Current capacity */
279 if (s->mult_sectors) /* Multiple sector setting */
280 put_le16(p + 59, 0x100 | s->mult_sectors);
281 put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
282 put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
283 put_le16(p + 63, 0x0203); /* Multiword DMA capability */
284 put_le16(p + 64, 0x0001); /* Flow Control PIO support */
285 put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
286 put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
287 put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
288 put_le16(p + 82, 0x400c); /* Command Set supported */
289 put_le16(p + 83, 0x7068); /* Command Set supported */
290 put_le16(p + 84, 0x4000); /* Features supported */
291 put_le16(p + 85, 0x000c); /* Command Set enabled */
292 put_le16(p + 86, 0x7044); /* Command Set enabled */
293 put_le16(p + 87, 0x4000); /* Features enabled */
294 put_le16(p + 91, 0x4060); /* Current APM level */
295 put_le16(p + 129, 0x0002); /* Current features option */
296 put_le16(p + 130, 0x0005); /* Reassigned sectors */
297 put_le16(p + 131, 0x0001); /* Initial power mode */
298 put_le16(p + 132, 0x0000); /* User signature */
299 put_le16(p + 160, 0x8100); /* Power requirement */
300 put_le16(p + 161, 0x8001); /* CF command set */
301
302 s->identify_set = 1;
303
304 fill_buffer:
305 memcpy(s->io_buffer, p, sizeof(s->identify_data));
306 }
307
308 static void ide_set_signature(IDEState *s)
309 {
310 s->select &= 0xf0; /* clear head */
311 /* put signature */
312 s->nsector = 1;
313 s->sector = 1;
314 if (s->drive_kind == IDE_CD) {
315 s->lcyl = 0x14;
316 s->hcyl = 0xeb;
317 } else if (s->bs) {
318 s->lcyl = 0;
319 s->hcyl = 0;
320 } else {
321 s->lcyl = 0xff;
322 s->hcyl = 0xff;
323 }
324 }
325
326 typedef struct TrimAIOCB {
327 BlockDriverAIOCB common;
328 QEMUBH *bh;
329 int ret;
330 } TrimAIOCB;
331
332 static void trim_aio_cancel(BlockDriverAIOCB *acb)
333 {
334 TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
335
336 qemu_bh_delete(iocb->bh);
337 iocb->bh = NULL;
338 qemu_aio_release(iocb);
339 }
340
341 static AIOPool trim_aio_pool = {
342 .aiocb_size = sizeof(TrimAIOCB),
343 .cancel = trim_aio_cancel,
344 };
345
346 static void ide_trim_bh_cb(void *opaque)
347 {
348 TrimAIOCB *iocb = opaque;
349
350 iocb->common.cb(iocb->common.opaque, iocb->ret);
351
352 qemu_bh_delete(iocb->bh);
353 iocb->bh = NULL;
354
355 qemu_aio_release(iocb);
356 }
357
358 BlockDriverAIOCB *ide_issue_trim(BlockDriverState *bs,
359 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
360 BlockDriverCompletionFunc *cb, void *opaque)
361 {
362 TrimAIOCB *iocb;
363 int i, j, ret;
364
365 iocb = qemu_aio_get(&trim_aio_pool, bs, cb, opaque);
366 iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
367 iocb->ret = 0;
368
369 for (j = 0; j < qiov->niov; j++) {
370 uint64_t *buffer = qiov->iov[j].iov_base;
371
372 for (i = 0; i < qiov->iov[j].iov_len / 8; i++) {
373 /* 6-byte LBA + 2-byte range per entry */
374 uint64_t entry = le64_to_cpu(buffer[i]);
375 uint64_t sector = entry & 0x0000ffffffffffffULL;
376 uint16_t count = entry >> 48;
377
378 if (count == 0) {
379 break;
380 }
381
382 ret = bdrv_discard(bs, sector, count);
383 if (!iocb->ret) {
384 iocb->ret = ret;
385 }
386 }
387 }
388
389 qemu_bh_schedule(iocb->bh);
390
391 return &iocb->common;
392 }
393
394 static inline void ide_abort_command(IDEState *s)
395 {
396 s->status = READY_STAT | ERR_STAT;
397 s->error = ABRT_ERR;
398 }
399
400 /* prepare data transfer and tell what to do after */
401 void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
402 EndTransferFunc *end_transfer_func)
403 {
404 s->end_transfer_func = end_transfer_func;
405 s->data_ptr = buf;
406 s->data_end = buf + size;
407 if (!(s->status & ERR_STAT)) {
408 s->status |= DRQ_STAT;
409 }
410 s->bus->dma->ops->start_transfer(s->bus->dma);
411 }
412
413 void ide_transfer_stop(IDEState *s)
414 {
415 s->end_transfer_func = ide_transfer_stop;
416 s->data_ptr = s->io_buffer;
417 s->data_end = s->io_buffer;
418 s->status &= ~DRQ_STAT;
419 }
420
421 int64_t ide_get_sector(IDEState *s)
422 {
423 int64_t sector_num;
424 if (s->select & 0x40) {
425 /* lba */
426 if (!s->lba48) {
427 sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
428 (s->lcyl << 8) | s->sector;
429 } else {
430 sector_num = ((int64_t)s->hob_hcyl << 40) |
431 ((int64_t) s->hob_lcyl << 32) |
432 ((int64_t) s->hob_sector << 24) |
433 ((int64_t) s->hcyl << 16) |
434 ((int64_t) s->lcyl << 8) | s->sector;
435 }
436 } else {
437 sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
438 (s->select & 0x0f) * s->sectors + (s->sector - 1);
439 }
440 return sector_num;
441 }
442
443 void ide_set_sector(IDEState *s, int64_t sector_num)
444 {
445 unsigned int cyl, r;
446 if (s->select & 0x40) {
447 if (!s->lba48) {
448 s->select = (s->select & 0xf0) | (sector_num >> 24);
449 s->hcyl = (sector_num >> 16);
450 s->lcyl = (sector_num >> 8);
451 s->sector = (sector_num);
452 } else {
453 s->sector = sector_num;
454 s->lcyl = sector_num >> 8;
455 s->hcyl = sector_num >> 16;
456 s->hob_sector = sector_num >> 24;
457 s->hob_lcyl = sector_num >> 32;
458 s->hob_hcyl = sector_num >> 40;
459 }
460 } else {
461 cyl = sector_num / (s->heads * s->sectors);
462 r = sector_num % (s->heads * s->sectors);
463 s->hcyl = cyl >> 8;
464 s->lcyl = cyl;
465 s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
466 s->sector = (r % s->sectors) + 1;
467 }
468 }
469
470 static void ide_rw_error(IDEState *s) {
471 ide_abort_command(s);
472 ide_set_irq(s->bus);
473 }
474
475 static void ide_sector_read_cb(void *opaque, int ret)
476 {
477 IDEState *s = opaque;
478 int n;
479
480 s->pio_aiocb = NULL;
481 s->status &= ~BUSY_STAT;
482
483 bdrv_acct_done(s->bs, &s->acct);
484 if (ret != 0) {
485 if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY |
486 BM_STATUS_RETRY_READ)) {
487 return;
488 }
489 }
490
491 n = s->nsector;
492 if (n > s->req_nb_sectors) {
493 n = s->req_nb_sectors;
494 }
495
496 /* Allow the guest to read the io_buffer */
497 ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
498
499 ide_set_irq(s->bus);
500
501 ide_set_sector(s, ide_get_sector(s) + n);
502 s->nsector -= n;
503 }
504
505 void ide_sector_read(IDEState *s)
506 {
507 int64_t sector_num;
508 int n;
509
510 s->status = READY_STAT | SEEK_STAT;
511 s->error = 0; /* not needed by IDE spec, but needed by Windows */
512 sector_num = ide_get_sector(s);
513 n = s->nsector;
514
515 if (n == 0) {
516 ide_transfer_stop(s);
517 return;
518 }
519
520 s->status |= BUSY_STAT;
521
522 if (n > s->req_nb_sectors) {
523 n = s->req_nb_sectors;
524 }
525
526 #if defined(DEBUG_IDE)
527 printf("sector=%" PRId64 "\n", sector_num);
528 #endif
529
530 s->iov.iov_base = s->io_buffer;
531 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
532 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
533
534 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
535 s->pio_aiocb = bdrv_aio_readv(s->bs, sector_num, &s->qiov, n,
536 ide_sector_read_cb, s);
537 }
538
539 static void dma_buf_commit(IDEState *s)
540 {
541 qemu_sglist_destroy(&s->sg);
542 }
543
544 void ide_set_inactive(IDEState *s)
545 {
546 s->bus->dma->aiocb = NULL;
547 s->bus->dma->ops->set_inactive(s->bus->dma);
548 }
549
550 void ide_dma_error(IDEState *s)
551 {
552 ide_transfer_stop(s);
553 s->error = ABRT_ERR;
554 s->status = READY_STAT | ERR_STAT;
555 ide_set_inactive(s);
556 ide_set_irq(s->bus);
557 }
558
559 static int ide_handle_rw_error(IDEState *s, int error, int op)
560 {
561 int is_read = (op & BM_STATUS_RETRY_READ);
562 BlockErrorAction action = bdrv_get_on_error(s->bs, is_read);
563
564 if (action == BLOCK_ERR_IGNORE) {
565 bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_IGNORE, is_read);
566 return 0;
567 }
568
569 if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
570 || action == BLOCK_ERR_STOP_ANY) {
571 s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
572 s->bus->error_status = op;
573 bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_STOP, is_read);
574 vm_stop(RUN_STATE_IO_ERROR);
575 bdrv_iostatus_set_err(s->bs, error);
576 } else {
577 if (op & BM_STATUS_DMA_RETRY) {
578 dma_buf_commit(s);
579 ide_dma_error(s);
580 } else {
581 ide_rw_error(s);
582 }
583 bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_REPORT, is_read);
584 }
585
586 return 1;
587 }
588
589 void ide_dma_cb(void *opaque, int ret)
590 {
591 IDEState *s = opaque;
592 int n;
593 int64_t sector_num;
594
595 if (ret < 0) {
596 int op = BM_STATUS_DMA_RETRY;
597
598 if (s->dma_cmd == IDE_DMA_READ)
599 op |= BM_STATUS_RETRY_READ;
600 else if (s->dma_cmd == IDE_DMA_TRIM)
601 op |= BM_STATUS_RETRY_TRIM;
602
603 if (ide_handle_rw_error(s, -ret, op)) {
604 return;
605 }
606 }
607
608 n = s->io_buffer_size >> 9;
609 sector_num = ide_get_sector(s);
610 if (n > 0) {
611 dma_buf_commit(s);
612 sector_num += n;
613 ide_set_sector(s, sector_num);
614 s->nsector -= n;
615 }
616
617 /* end of transfer ? */
618 if (s->nsector == 0) {
619 s->status = READY_STAT | SEEK_STAT;
620 ide_set_irq(s->bus);
621 goto eot;
622 }
623
624 /* launch next transfer */
625 n = s->nsector;
626 s->io_buffer_index = 0;
627 s->io_buffer_size = n * 512;
628 if (s->bus->dma->ops->prepare_buf(s->bus->dma, ide_cmd_is_read(s)) == 0) {
629 /* The PRDs were too short. Reset the Active bit, but don't raise an
630 * interrupt. */
631 goto eot;
632 }
633
634 #ifdef DEBUG_AIO
635 printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
636 sector_num, n, s->dma_cmd);
637 #endif
638
639 switch (s->dma_cmd) {
640 case IDE_DMA_READ:
641 s->bus->dma->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num,
642 ide_dma_cb, s);
643 break;
644 case IDE_DMA_WRITE:
645 s->bus->dma->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num,
646 ide_dma_cb, s);
647 break;
648 case IDE_DMA_TRIM:
649 s->bus->dma->aiocb = dma_bdrv_io(s->bs, &s->sg, sector_num,
650 ide_issue_trim, ide_dma_cb, s,
651 DMA_DIRECTION_TO_DEVICE);
652 break;
653 }
654 return;
655
656 eot:
657 if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
658 bdrv_acct_done(s->bs, &s->acct);
659 }
660 ide_set_inactive(s);
661 }
662
663 static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
664 {
665 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
666 s->io_buffer_index = 0;
667 s->io_buffer_size = 0;
668 s->dma_cmd = dma_cmd;
669
670 switch (dma_cmd) {
671 case IDE_DMA_READ:
672 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
673 BDRV_ACCT_READ);
674 break;
675 case IDE_DMA_WRITE:
676 bdrv_acct_start(s->bs, &s->acct, s->nsector * BDRV_SECTOR_SIZE,
677 BDRV_ACCT_WRITE);
678 break;
679 default:
680 break;
681 }
682
683 s->bus->dma->ops->start_dma(s->bus->dma, s, ide_dma_cb);
684 }
685
686 static void ide_sector_write_timer_cb(void *opaque)
687 {
688 IDEState *s = opaque;
689 ide_set_irq(s->bus);
690 }
691
692 static void ide_sector_write_cb(void *opaque, int ret)
693 {
694 IDEState *s = opaque;
695 int n;
696
697 bdrv_acct_done(s->bs, &s->acct);
698
699 s->pio_aiocb = NULL;
700 s->status &= ~BUSY_STAT;
701
702 if (ret != 0) {
703 if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY)) {
704 return;
705 }
706 }
707
708 n = s->nsector;
709 if (n > s->req_nb_sectors) {
710 n = s->req_nb_sectors;
711 }
712 s->nsector -= n;
713 if (s->nsector == 0) {
714 /* no more sectors to write */
715 ide_transfer_stop(s);
716 } else {
717 int n1 = s->nsector;
718 if (n1 > s->req_nb_sectors) {
719 n1 = s->req_nb_sectors;
720 }
721 ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
722 ide_sector_write);
723 }
724 ide_set_sector(s, ide_get_sector(s) + n);
725
726 if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
727 /* It seems there is a bug in the Windows 2000 installer HDD
728 IDE driver which fills the disk with empty logs when the
729 IDE write IRQ comes too early. This hack tries to correct
730 that at the expense of slower write performances. Use this
731 option _only_ to install Windows 2000. You must disable it
732 for normal use. */
733 qemu_mod_timer(s->sector_write_timer,
734 qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() / 1000));
735 } else {
736 ide_set_irq(s->bus);
737 }
738 }
739
740 void ide_sector_write(IDEState *s)
741 {
742 int64_t sector_num;
743 int n;
744
745 s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
746 sector_num = ide_get_sector(s);
747 #if defined(DEBUG_IDE)
748 printf("sector=%" PRId64 "\n", sector_num);
749 #endif
750 n = s->nsector;
751 if (n > s->req_nb_sectors) {
752 n = s->req_nb_sectors;
753 }
754
755 s->iov.iov_base = s->io_buffer;
756 s->iov.iov_len = n * BDRV_SECTOR_SIZE;
757 qemu_iovec_init_external(&s->qiov, &s->iov, 1);
758
759 bdrv_acct_start(s->bs, &s->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
760 s->pio_aiocb = bdrv_aio_writev(s->bs, sector_num, &s->qiov, n,
761 ide_sector_write_cb, s);
762 }
763
764 static void ide_flush_cb(void *opaque, int ret)
765 {
766 IDEState *s = opaque;
767
768 if (ret < 0) {
769 /* XXX: What sector number to set here? */
770 if (ide_handle_rw_error(s, -ret, BM_STATUS_RETRY_FLUSH)) {
771 return;
772 }
773 }
774
775 bdrv_acct_done(s->bs, &s->acct);
776 s->status = READY_STAT | SEEK_STAT;
777 ide_set_irq(s->bus);
778 }
779
780 void ide_flush_cache(IDEState *s)
781 {
782 if (s->bs == NULL) {
783 ide_flush_cb(s, 0);
784 return;
785 }
786
787 bdrv_acct_start(s->bs, &s->acct, 0, BDRV_ACCT_FLUSH);
788 bdrv_aio_flush(s->bs, ide_flush_cb, s);
789 }
790
791 static void ide_cfata_metadata_inquiry(IDEState *s)
792 {
793 uint16_t *p;
794 uint32_t spd;
795
796 p = (uint16_t *) s->io_buffer;
797 memset(p, 0, 0x200);
798 spd = ((s->mdata_size - 1) >> 9) + 1;
799
800 put_le16(p + 0, 0x0001); /* Data format revision */
801 put_le16(p + 1, 0x0000); /* Media property: silicon */
802 put_le16(p + 2, s->media_changed); /* Media status */
803 put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
804 put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
805 put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
806 put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
807 }
808
809 static void ide_cfata_metadata_read(IDEState *s)
810 {
811 uint16_t *p;
812
813 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
814 s->status = ERR_STAT;
815 s->error = ABRT_ERR;
816 return;
817 }
818
819 p = (uint16_t *) s->io_buffer;
820 memset(p, 0, 0x200);
821
822 put_le16(p + 0, s->media_changed); /* Media status */
823 memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
824 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
825 s->nsector << 9), 0x200 - 2));
826 }
827
828 static void ide_cfata_metadata_write(IDEState *s)
829 {
830 if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
831 s->status = ERR_STAT;
832 s->error = ABRT_ERR;
833 return;
834 }
835
836 s->media_changed = 0;
837
838 memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
839 s->io_buffer + 2,
840 MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
841 s->nsector << 9), 0x200 - 2));
842 }
843
844 /* called when the inserted state of the media has changed */
845 static void ide_cd_change_cb(void *opaque, bool load)
846 {
847 IDEState *s = opaque;
848 uint64_t nb_sectors;
849
850 s->tray_open = !load;
851 bdrv_get_geometry(s->bs, &nb_sectors);
852 s->nb_sectors = nb_sectors;
853
854 /*
855 * First indicate to the guest that a CD has been removed. That's
856 * done on the next command the guest sends us.
857 *
858 * Then we set UNIT_ATTENTION, by which the guest will
859 * detect a new CD in the drive. See ide_atapi_cmd() for details.
860 */
861 s->cdrom_changed = 1;
862 s->events.new_media = true;
863 s->events.eject_request = false;
864 ide_set_irq(s->bus);
865 }
866
867 static void ide_cd_eject_request_cb(void *opaque, bool force)
868 {
869 IDEState *s = opaque;
870
871 s->events.eject_request = true;
872 if (force) {
873 s->tray_locked = false;
874 }
875 ide_set_irq(s->bus);
876 }
877
878 static void ide_cmd_lba48_transform(IDEState *s, int lba48)
879 {
880 s->lba48 = lba48;
881
882 /* handle the 'magic' 0 nsector count conversion here. to avoid
883 * fiddling with the rest of the read logic, we just store the
884 * full sector count in ->nsector and ignore ->hob_nsector from now
885 */
886 if (!s->lba48) {
887 if (!s->nsector)
888 s->nsector = 256;
889 } else {
890 if (!s->nsector && !s->hob_nsector)
891 s->nsector = 65536;
892 else {
893 int lo = s->nsector;
894 int hi = s->hob_nsector;
895
896 s->nsector = (hi << 8) | lo;
897 }
898 }
899 }
900
901 static void ide_clear_hob(IDEBus *bus)
902 {
903 /* any write clears HOB high bit of device control register */
904 bus->ifs[0].select &= ~(1 << 7);
905 bus->ifs[1].select &= ~(1 << 7);
906 }
907
908 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
909 {
910 IDEBus *bus = opaque;
911
912 #ifdef DEBUG_IDE
913 printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
914 #endif
915
916 addr &= 7;
917
918 /* ignore writes to command block while busy with previous command */
919 if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
920 return;
921
922 switch(addr) {
923 case 0:
924 break;
925 case 1:
926 ide_clear_hob(bus);
927 /* NOTE: data is written to the two drives */
928 bus->ifs[0].hob_feature = bus->ifs[0].feature;
929 bus->ifs[1].hob_feature = bus->ifs[1].feature;
930 bus->ifs[0].feature = val;
931 bus->ifs[1].feature = val;
932 break;
933 case 2:
934 ide_clear_hob(bus);
935 bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
936 bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
937 bus->ifs[0].nsector = val;
938 bus->ifs[1].nsector = val;
939 break;
940 case 3:
941 ide_clear_hob(bus);
942 bus->ifs[0].hob_sector = bus->ifs[0].sector;
943 bus->ifs[1].hob_sector = bus->ifs[1].sector;
944 bus->ifs[0].sector = val;
945 bus->ifs[1].sector = val;
946 break;
947 case 4:
948 ide_clear_hob(bus);
949 bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
950 bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
951 bus->ifs[0].lcyl = val;
952 bus->ifs[1].lcyl = val;
953 break;
954 case 5:
955 ide_clear_hob(bus);
956 bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
957 bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
958 bus->ifs[0].hcyl = val;
959 bus->ifs[1].hcyl = val;
960 break;
961 case 6:
962 /* FIXME: HOB readback uses bit 7 */
963 bus->ifs[0].select = (val & ~0x10) | 0xa0;
964 bus->ifs[1].select = (val | 0x10) | 0xa0;
965 /* select drive */
966 bus->unit = (val >> 4) & 1;
967 break;
968 default:
969 case 7:
970 /* command */
971 ide_exec_cmd(bus, val);
972 break;
973 }
974 }
975
976 #define HD_OK (1u << IDE_HD)
977 #define CD_OK (1u << IDE_CD)
978 #define CFA_OK (1u << IDE_CFATA)
979 #define HD_CFA_OK (HD_OK | CFA_OK)
980 #define ALL_OK (HD_OK | CD_OK | CFA_OK)
981
982 /* See ACS-2 T13/2015-D Table B.2 Command codes */
983 static const uint8_t ide_cmd_table[0x100] = {
984 /* NOP not implemented, mandatory for CD */
985 [CFA_REQ_EXT_ERROR_CODE] = CFA_OK,
986 [WIN_DSM] = ALL_OK,
987 [WIN_DEVICE_RESET] = CD_OK,
988 [WIN_RECAL] = HD_CFA_OK,
989 [WIN_READ] = ALL_OK,
990 [WIN_READ_ONCE] = ALL_OK,
991 [WIN_READ_EXT] = HD_CFA_OK,
992 [WIN_READDMA_EXT] = HD_CFA_OK,
993 [WIN_READ_NATIVE_MAX_EXT] = HD_CFA_OK,
994 [WIN_MULTREAD_EXT] = HD_CFA_OK,
995 [WIN_WRITE] = HD_CFA_OK,
996 [WIN_WRITE_ONCE] = HD_CFA_OK,
997 [WIN_WRITE_EXT] = HD_CFA_OK,
998 [WIN_WRITEDMA_EXT] = HD_CFA_OK,
999 [CFA_WRITE_SECT_WO_ERASE] = CFA_OK,
1000 [WIN_MULTWRITE_EXT] = HD_CFA_OK,
1001 [WIN_WRITE_VERIFY] = HD_CFA_OK,
1002 [WIN_VERIFY] = HD_CFA_OK,
1003 [WIN_VERIFY_ONCE] = HD_CFA_OK,
1004 [WIN_VERIFY_EXT] = HD_CFA_OK,
1005 [WIN_SEEK] = HD_CFA_OK,
1006 [CFA_TRANSLATE_SECTOR] = CFA_OK,
1007 [WIN_DIAGNOSE] = ALL_OK,
1008 [WIN_SPECIFY] = HD_CFA_OK,
1009 [WIN_STANDBYNOW2] = ALL_OK,
1010 [WIN_IDLEIMMEDIATE2] = ALL_OK,
1011 [WIN_STANDBY2] = ALL_OK,
1012 [WIN_SETIDLE2] = ALL_OK,
1013 [WIN_CHECKPOWERMODE2] = ALL_OK,
1014 [WIN_SLEEPNOW2] = ALL_OK,
1015 [WIN_PACKETCMD] = CD_OK,
1016 [WIN_PIDENTIFY] = CD_OK,
1017 [WIN_SMART] = HD_CFA_OK,
1018 [CFA_ACCESS_METADATA_STORAGE] = CFA_OK,
1019 [CFA_ERASE_SECTORS] = CFA_OK,
1020 [WIN_MULTREAD] = HD_CFA_OK,
1021 [WIN_MULTWRITE] = HD_CFA_OK,
1022 [WIN_SETMULT] = HD_CFA_OK,
1023 [WIN_READDMA] = HD_CFA_OK,
1024 [WIN_READDMA_ONCE] = HD_CFA_OK,
1025 [WIN_WRITEDMA] = HD_CFA_OK,
1026 [WIN_WRITEDMA_ONCE] = HD_CFA_OK,
1027 [CFA_WRITE_MULTI_WO_ERASE] = CFA_OK,
1028 [WIN_STANDBYNOW1] = ALL_OK,
1029 [WIN_IDLEIMMEDIATE] = ALL_OK,
1030 [WIN_STANDBY] = ALL_OK,
1031 [WIN_SETIDLE1] = ALL_OK,
1032 [WIN_CHECKPOWERMODE1] = ALL_OK,
1033 [WIN_SLEEPNOW1] = ALL_OK,
1034 [WIN_FLUSH_CACHE] = ALL_OK,
1035 [WIN_FLUSH_CACHE_EXT] = HD_CFA_OK,
1036 [WIN_IDENTIFY] = ALL_OK,
1037 [WIN_SETFEATURES] = ALL_OK,
1038 [IBM_SENSE_CONDITION] = CFA_OK,
1039 [CFA_WEAR_LEVEL] = HD_CFA_OK,
1040 [WIN_READ_NATIVE_MAX] = ALL_OK,
1041 };
1042
1043 static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
1044 {
1045 return cmd < ARRAY_SIZE(ide_cmd_table)
1046 && (ide_cmd_table[cmd] & (1u << s->drive_kind));
1047 }
1048
1049 void ide_exec_cmd(IDEBus *bus, uint32_t val)
1050 {
1051 uint16_t *identify_data;
1052 IDEState *s;
1053 int n;
1054 int lba48 = 0;
1055
1056 #if defined(DEBUG_IDE)
1057 printf("ide: CMD=%02x\n", val);
1058 #endif
1059 s = idebus_active_if(bus);
1060 /* ignore commands to non existent slave */
1061 if (s != bus->ifs && !s->bs)
1062 return;
1063
1064 /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
1065 if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
1066 return;
1067
1068 if (!ide_cmd_permitted(s, val)) {
1069 goto abort_cmd;
1070 }
1071
1072 switch(val) {
1073 case WIN_DSM:
1074 switch (s->feature) {
1075 case DSM_TRIM:
1076 if (!s->bs) {
1077 goto abort_cmd;
1078 }
1079 ide_sector_start_dma(s, IDE_DMA_TRIM);
1080 break;
1081 default:
1082 goto abort_cmd;
1083 }
1084 break;
1085 case WIN_IDENTIFY:
1086 if (s->bs && s->drive_kind != IDE_CD) {
1087 if (s->drive_kind != IDE_CFATA)
1088 ide_identify(s);
1089 else
1090 ide_cfata_identify(s);
1091 s->status = READY_STAT | SEEK_STAT;
1092 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1093 } else {
1094 if (s->drive_kind == IDE_CD) {
1095 ide_set_signature(s);
1096 }
1097 ide_abort_command(s);
1098 }
1099 ide_set_irq(s->bus);
1100 break;
1101 case WIN_SPECIFY:
1102 case WIN_RECAL:
1103 s->error = 0;
1104 s->status = READY_STAT | SEEK_STAT;
1105 ide_set_irq(s->bus);
1106 break;
1107 case WIN_SETMULT:
1108 if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
1109 /* Disable Read and Write Multiple */
1110 s->mult_sectors = 0;
1111 s->status = READY_STAT | SEEK_STAT;
1112 } else if ((s->nsector & 0xff) != 0 &&
1113 ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
1114 (s->nsector & (s->nsector - 1)) != 0)) {
1115 ide_abort_command(s);
1116 } else {
1117 s->mult_sectors = s->nsector & 0xff;
1118 s->status = READY_STAT | SEEK_STAT;
1119 }
1120 ide_set_irq(s->bus);
1121 break;
1122 case WIN_VERIFY_EXT:
1123 lba48 = 1;
1124 case WIN_VERIFY:
1125 case WIN_VERIFY_ONCE:
1126 /* do sector number check ? */
1127 ide_cmd_lba48_transform(s, lba48);
1128 s->status = READY_STAT | SEEK_STAT;
1129 ide_set_irq(s->bus);
1130 break;
1131 case WIN_READ_EXT:
1132 lba48 = 1;
1133 case WIN_READ:
1134 case WIN_READ_ONCE:
1135 if (s->drive_kind == IDE_CD) {
1136 ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
1137 goto abort_cmd;
1138 }
1139 if (!s->bs) {
1140 goto abort_cmd;
1141 }
1142 ide_cmd_lba48_transform(s, lba48);
1143 s->req_nb_sectors = 1;
1144 ide_sector_read(s);
1145 break;
1146 case WIN_WRITE_EXT:
1147 lba48 = 1;
1148 case WIN_WRITE:
1149 case WIN_WRITE_ONCE:
1150 case CFA_WRITE_SECT_WO_ERASE:
1151 case WIN_WRITE_VERIFY:
1152 if (!s->bs) {
1153 goto abort_cmd;
1154 }
1155 ide_cmd_lba48_transform(s, lba48);
1156 s->error = 0;
1157 s->status = SEEK_STAT | READY_STAT;
1158 s->req_nb_sectors = 1;
1159 ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
1160 s->media_changed = 1;
1161 break;
1162 case WIN_MULTREAD_EXT:
1163 lba48 = 1;
1164 case WIN_MULTREAD:
1165 if (!s->bs) {
1166 goto abort_cmd;
1167 }
1168 if (!s->mult_sectors) {
1169 goto abort_cmd;
1170 }
1171 ide_cmd_lba48_transform(s, lba48);
1172 s->req_nb_sectors = s->mult_sectors;
1173 ide_sector_read(s);
1174 break;
1175 case WIN_MULTWRITE_EXT:
1176 lba48 = 1;
1177 case WIN_MULTWRITE:
1178 case CFA_WRITE_MULTI_WO_ERASE:
1179 if (!s->bs) {
1180 goto abort_cmd;
1181 }
1182 if (!s->mult_sectors) {
1183 goto abort_cmd;
1184 }
1185 ide_cmd_lba48_transform(s, lba48);
1186 s->error = 0;
1187 s->status = SEEK_STAT | READY_STAT;
1188 s->req_nb_sectors = s->mult_sectors;
1189 n = s->nsector;
1190 if (n > s->req_nb_sectors)
1191 n = s->req_nb_sectors;
1192 ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
1193 s->media_changed = 1;
1194 break;
1195 case WIN_READDMA_EXT:
1196 lba48 = 1;
1197 case WIN_READDMA:
1198 case WIN_READDMA_ONCE:
1199 if (!s->bs) {
1200 goto abort_cmd;
1201 }
1202 ide_cmd_lba48_transform(s, lba48);
1203 ide_sector_start_dma(s, IDE_DMA_READ);
1204 break;
1205 case WIN_WRITEDMA_EXT:
1206 lba48 = 1;
1207 case WIN_WRITEDMA:
1208 case WIN_WRITEDMA_ONCE:
1209 if (!s->bs) {
1210 goto abort_cmd;
1211 }
1212 ide_cmd_lba48_transform(s, lba48);
1213 ide_sector_start_dma(s, IDE_DMA_WRITE);
1214 s->media_changed = 1;
1215 break;
1216 case WIN_READ_NATIVE_MAX_EXT:
1217 lba48 = 1;
1218 case WIN_READ_NATIVE_MAX:
1219 ide_cmd_lba48_transform(s, lba48);
1220 ide_set_sector(s, s->nb_sectors - 1);
1221 s->status = READY_STAT | SEEK_STAT;
1222 ide_set_irq(s->bus);
1223 break;
1224 case WIN_CHECKPOWERMODE1:
1225 case WIN_CHECKPOWERMODE2:
1226 s->error = 0;
1227 s->nsector = 0xff; /* device active or idle */
1228 s->status = READY_STAT | SEEK_STAT;
1229 ide_set_irq(s->bus);
1230 break;
1231 case WIN_SETFEATURES:
1232 if (!s->bs)
1233 goto abort_cmd;
1234 /* XXX: valid for CDROM ? */
1235 switch(s->feature) {
1236 case 0x02: /* write cache enable */
1237 bdrv_set_enable_write_cache(s->bs, true);
1238 identify_data = (uint16_t *)s->identify_data;
1239 put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
1240 s->status = READY_STAT | SEEK_STAT;
1241 ide_set_irq(s->bus);
1242 break;
1243 case 0x82: /* write cache disable */
1244 bdrv_set_enable_write_cache(s->bs, false);
1245 identify_data = (uint16_t *)s->identify_data;
1246 put_le16(identify_data + 85, (1 << 14) | 1);
1247 ide_flush_cache(s);
1248 break;
1249 case 0xcc: /* reverting to power-on defaults enable */
1250 case 0x66: /* reverting to power-on defaults disable */
1251 case 0xaa: /* read look-ahead enable */
1252 case 0x55: /* read look-ahead disable */
1253 case 0x05: /* set advanced power management mode */
1254 case 0x85: /* disable advanced power management mode */
1255 case 0x69: /* NOP */
1256 case 0x67: /* NOP */
1257 case 0x96: /* NOP */
1258 case 0x9a: /* NOP */
1259 case 0x42: /* enable Automatic Acoustic Mode */
1260 case 0xc2: /* disable Automatic Acoustic Mode */
1261 s->status = READY_STAT | SEEK_STAT;
1262 ide_set_irq(s->bus);
1263 break;
1264 case 0x03: { /* set transfer mode */
1265 uint8_t val = s->nsector & 0x07;
1266 identify_data = (uint16_t *)s->identify_data;
1267
1268 switch (s->nsector >> 3) {
1269 case 0x00: /* pio default */
1270 case 0x01: /* pio mode */
1271 put_le16(identify_data + 62,0x07);
1272 put_le16(identify_data + 63,0x07);
1273 put_le16(identify_data + 88,0x3f);
1274 break;
1275 case 0x02: /* sigle word dma mode*/
1276 put_le16(identify_data + 62,0x07 | (1 << (val + 8)));
1277 put_le16(identify_data + 63,0x07);
1278 put_le16(identify_data + 88,0x3f);
1279 break;
1280 case 0x04: /* mdma mode */
1281 put_le16(identify_data + 62,0x07);
1282 put_le16(identify_data + 63,0x07 | (1 << (val + 8)));
1283 put_le16(identify_data + 88,0x3f);
1284 break;
1285 case 0x08: /* udma mode */
1286 put_le16(identify_data + 62,0x07);
1287 put_le16(identify_data + 63,0x07);
1288 put_le16(identify_data + 88,0x3f | (1 << (val + 8)));
1289 break;
1290 default:
1291 goto abort_cmd;
1292 }
1293 s->status = READY_STAT | SEEK_STAT;
1294 ide_set_irq(s->bus);
1295 break;
1296 }
1297 default:
1298 goto abort_cmd;
1299 }
1300 break;
1301 case WIN_FLUSH_CACHE:
1302 case WIN_FLUSH_CACHE_EXT:
1303 ide_flush_cache(s);
1304 break;
1305 case WIN_STANDBY:
1306 case WIN_STANDBY2:
1307 case WIN_STANDBYNOW1:
1308 case WIN_STANDBYNOW2:
1309 case WIN_IDLEIMMEDIATE:
1310 case WIN_IDLEIMMEDIATE2:
1311 case WIN_SETIDLE1:
1312 case WIN_SETIDLE2:
1313 case WIN_SLEEPNOW1:
1314 case WIN_SLEEPNOW2:
1315 s->status = READY_STAT;
1316 ide_set_irq(s->bus);
1317 break;
1318 case WIN_SEEK:
1319 /* XXX: Check that seek is within bounds */
1320 s->status = READY_STAT | SEEK_STAT;
1321 ide_set_irq(s->bus);
1322 break;
1323 /* ATAPI commands */
1324 case WIN_PIDENTIFY:
1325 ide_atapi_identify(s);
1326 s->status = READY_STAT | SEEK_STAT;
1327 ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
1328 ide_set_irq(s->bus);
1329 break;
1330 case WIN_DIAGNOSE:
1331 ide_set_signature(s);
1332 if (s->drive_kind == IDE_CD)
1333 s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
1334 * devices to return a clear status register
1335 * with READY_STAT *not* set. */
1336 else
1337 s->status = READY_STAT | SEEK_STAT;
1338 s->error = 0x01; /* Device 0 passed, Device 1 passed or not
1339 * present.
1340 */
1341 ide_set_irq(s->bus);
1342 break;
1343 case WIN_DEVICE_RESET:
1344 ide_set_signature(s);
1345 s->status = 0x00; /* NOTE: READY is _not_ set */
1346 s->error = 0x01;
1347 break;
1348 case WIN_PACKETCMD:
1349 /* overlapping commands not supported */
1350 if (s->feature & 0x02)
1351 goto abort_cmd;
1352 s->status = READY_STAT | SEEK_STAT;
1353 s->atapi_dma = s->feature & 1;
1354 s->nsector = 1;
1355 ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
1356 ide_atapi_cmd);
1357 break;
1358 /* CF-ATA commands */
1359 case CFA_REQ_EXT_ERROR_CODE:
1360 s->error = 0x09; /* miscellaneous error */
1361 s->status = READY_STAT | SEEK_STAT;
1362 ide_set_irq(s->bus);
1363 break;
1364 case CFA_ERASE_SECTORS:
1365 case CFA_WEAR_LEVEL:
1366 #if 0
1367 /* This one has the same ID as CFA_WEAR_LEVEL and is required for
1368 Windows 8 to work with AHCI */
1369 case WIN_SECURITY_FREEZE_LOCK:
1370 #endif
1371 if (val == CFA_WEAR_LEVEL)
1372 s->nsector = 0;
1373 if (val == CFA_ERASE_SECTORS)
1374 s->media_changed = 1;
1375 s->error = 0x00;
1376 s->status = READY_STAT | SEEK_STAT;
1377 ide_set_irq(s->bus);
1378 break;
1379 case CFA_TRANSLATE_SECTOR:
1380 s->error = 0x00;
1381 s->status = READY_STAT | SEEK_STAT;
1382 memset(s->io_buffer, 0, 0x200);
1383 s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
1384 s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
1385 s->io_buffer[0x02] = s->select; /* Head */
1386 s->io_buffer[0x03] = s->sector; /* Sector */
1387 s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
1388 s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
1389 s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
1390 s->io_buffer[0x13] = 0x00; /* Erase flag */
1391 s->io_buffer[0x18] = 0x00; /* Hot count */
1392 s->io_buffer[0x19] = 0x00; /* Hot count */
1393 s->io_buffer[0x1a] = 0x01; /* Hot count */
1394 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1395 ide_set_irq(s->bus);
1396 break;
1397 case CFA_ACCESS_METADATA_STORAGE:
1398 switch (s->feature) {
1399 case 0x02: /* Inquiry Metadata Storage */
1400 ide_cfata_metadata_inquiry(s);
1401 break;
1402 case 0x03: /* Read Metadata Storage */
1403 ide_cfata_metadata_read(s);
1404 break;
1405 case 0x04: /* Write Metadata Storage */
1406 ide_cfata_metadata_write(s);
1407 break;
1408 default:
1409 goto abort_cmd;
1410 }
1411 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1412 s->status = 0x00; /* NOTE: READY is _not_ set */
1413 ide_set_irq(s->bus);
1414 break;
1415 case IBM_SENSE_CONDITION:
1416 switch (s->feature) {
1417 case 0x01: /* sense temperature in device */
1418 s->nsector = 0x50; /* +20 C */
1419 break;
1420 default:
1421 goto abort_cmd;
1422 }
1423 s->status = READY_STAT | SEEK_STAT;
1424 ide_set_irq(s->bus);
1425 break;
1426
1427 case WIN_SMART:
1428 if (s->hcyl != 0xc2 || s->lcyl != 0x4f)
1429 goto abort_cmd;
1430 if (!s->smart_enabled && s->feature != SMART_ENABLE)
1431 goto abort_cmd;
1432 switch (s->feature) {
1433 case SMART_DISABLE:
1434 s->smart_enabled = 0;
1435 s->status = READY_STAT | SEEK_STAT;
1436 ide_set_irq(s->bus);
1437 break;
1438 case SMART_ENABLE:
1439 s->smart_enabled = 1;
1440 s->status = READY_STAT | SEEK_STAT;
1441 ide_set_irq(s->bus);
1442 break;
1443 case SMART_ATTR_AUTOSAVE:
1444 switch (s->sector) {
1445 case 0x00:
1446 s->smart_autosave = 0;
1447 break;
1448 case 0xf1:
1449 s->smart_autosave = 1;
1450 break;
1451 default:
1452 goto abort_cmd;
1453 }
1454 s->status = READY_STAT | SEEK_STAT;
1455 ide_set_irq(s->bus);
1456 break;
1457 case SMART_STATUS:
1458 if (!s->smart_errors) {
1459 s->hcyl = 0xc2;
1460 s->lcyl = 0x4f;
1461 } else {
1462 s->hcyl = 0x2c;
1463 s->lcyl = 0xf4;
1464 }
1465 s->status = READY_STAT | SEEK_STAT;
1466 ide_set_irq(s->bus);
1467 break;
1468 case SMART_READ_THRESH:
1469 memset(s->io_buffer, 0, 0x200);
1470 s->io_buffer[0] = 0x01; /* smart struct version */
1471 for (n=0; n<30; n++) {
1472 if (smart_attributes[n][0] == 0)
1473 break;
1474 s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
1475 s->io_buffer[2+1+(n*12)] = smart_attributes[n][11];
1476 }
1477 for (n=0; n<511; n++) /* checksum */
1478 s->io_buffer[511] += s->io_buffer[n];
1479 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1480 s->status = READY_STAT | SEEK_STAT;
1481 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1482 ide_set_irq(s->bus);
1483 break;
1484 case SMART_READ_DATA:
1485 memset(s->io_buffer, 0, 0x200);
1486 s->io_buffer[0] = 0x01; /* smart struct version */
1487 for (n=0; n<30; n++) {
1488 if (smart_attributes[n][0] == 0) {
1489 break;
1490 }
1491 int i;
1492 for(i = 0; i < 11; i++) {
1493 s->io_buffer[2+i+(n*12)] = smart_attributes[n][i];
1494 }
1495 }
1496 s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00);
1497 if (s->smart_selftest_count == 0) {
1498 s->io_buffer[363] = 0;
1499 } else {
1500 s->io_buffer[363] =
1501 s->smart_selftest_data[3 +
1502 (s->smart_selftest_count - 1) *
1503 24];
1504 }
1505 s->io_buffer[364] = 0x20;
1506 s->io_buffer[365] = 0x01;
1507 /* offline data collection capacity: execute + self-test*/
1508 s->io_buffer[367] = (1<<4 | 1<<3 | 1);
1509 s->io_buffer[368] = 0x03; /* smart capability (1) */
1510 s->io_buffer[369] = 0x00; /* smart capability (2) */
1511 s->io_buffer[370] = 0x01; /* error logging supported */
1512 s->io_buffer[372] = 0x02; /* minutes for poll short test */
1513 s->io_buffer[373] = 0x36; /* minutes for poll ext test */
1514 s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
1515
1516 for (n=0; n<511; n++)
1517 s->io_buffer[511] += s->io_buffer[n];
1518 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1519 s->status = READY_STAT | SEEK_STAT;
1520 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1521 ide_set_irq(s->bus);
1522 break;
1523 case SMART_READ_LOG:
1524 switch (s->sector) {
1525 case 0x01: /* summary smart error log */
1526 memset(s->io_buffer, 0, 0x200);
1527 s->io_buffer[0] = 0x01;
1528 s->io_buffer[1] = 0x00; /* no error entries */
1529 s->io_buffer[452] = s->smart_errors & 0xff;
1530 s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
1531
1532 for (n=0; n<511; n++)
1533 s->io_buffer[511] += s->io_buffer[n];
1534 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1535 break;
1536 case 0x06: /* smart self test log */
1537 memset(s->io_buffer, 0, 0x200);
1538 s->io_buffer[0] = 0x01;
1539 if (s->smart_selftest_count == 0) {
1540 s->io_buffer[508] = 0;
1541 } else {
1542 s->io_buffer[508] = s->smart_selftest_count;
1543 for (n=2; n<506; n++)
1544 s->io_buffer[n] = s->smart_selftest_data[n];
1545 }
1546 for (n=0; n<511; n++)
1547 s->io_buffer[511] += s->io_buffer[n];
1548 s->io_buffer[511] = 0x100 - s->io_buffer[511];
1549 break;
1550 default:
1551 goto abort_cmd;
1552 }
1553 s->status = READY_STAT | SEEK_STAT;
1554 ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
1555 ide_set_irq(s->bus);
1556 break;
1557 case SMART_EXECUTE_OFFLINE:
1558 switch (s->sector) {
1559 case 0: /* off-line routine */
1560 case 1: /* short self test */
1561 case 2: /* extended self test */
1562 s->smart_selftest_count++;
1563 if(s->smart_selftest_count > 21)
1564 s->smart_selftest_count = 0;
1565 n = 2 + (s->smart_selftest_count - 1) * 24;
1566 s->smart_selftest_data[n] = s->sector;
1567 s->smart_selftest_data[n+1] = 0x00; /* OK and finished */
1568 s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */
1569 s->smart_selftest_data[n+3] = 0x12; /* hour count msb */
1570 s->status = READY_STAT | SEEK_STAT;
1571 ide_set_irq(s->bus);
1572 break;
1573 default:
1574 goto abort_cmd;
1575 }
1576 break;
1577 default:
1578 goto abort_cmd;
1579 }
1580 break;
1581 default:
1582 /* should not be reachable */
1583 abort_cmd:
1584 ide_abort_command(s);
1585 ide_set_irq(s->bus);
1586 break;
1587 }
1588 }
1589
1590 uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
1591 {
1592 IDEBus *bus = opaque;
1593 IDEState *s = idebus_active_if(bus);
1594 uint32_t addr;
1595 int ret, hob;
1596
1597 addr = addr1 & 7;
1598 /* FIXME: HOB readback uses bit 7, but it's always set right now */
1599 //hob = s->select & (1 << 7);
1600 hob = 0;
1601 switch(addr) {
1602 case 0:
1603 ret = 0xff;
1604 break;
1605 case 1:
1606 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1607 (s != bus->ifs && !s->bs))
1608 ret = 0;
1609 else if (!hob)
1610 ret = s->error;
1611 else
1612 ret = s->hob_feature;
1613 break;
1614 case 2:
1615 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1616 ret = 0;
1617 else if (!hob)
1618 ret = s->nsector & 0xff;
1619 else
1620 ret = s->hob_nsector;
1621 break;
1622 case 3:
1623 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1624 ret = 0;
1625 else if (!hob)
1626 ret = s->sector;
1627 else
1628 ret = s->hob_sector;
1629 break;
1630 case 4:
1631 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1632 ret = 0;
1633 else if (!hob)
1634 ret = s->lcyl;
1635 else
1636 ret = s->hob_lcyl;
1637 break;
1638 case 5:
1639 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1640 ret = 0;
1641 else if (!hob)
1642 ret = s->hcyl;
1643 else
1644 ret = s->hob_hcyl;
1645 break;
1646 case 6:
1647 if (!bus->ifs[0].bs && !bus->ifs[1].bs)
1648 ret = 0;
1649 else
1650 ret = s->select;
1651 break;
1652 default:
1653 case 7:
1654 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1655 (s != bus->ifs && !s->bs))
1656 ret = 0;
1657 else
1658 ret = s->status;
1659 qemu_irq_lower(bus->irq);
1660 break;
1661 }
1662 #ifdef DEBUG_IDE
1663 printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
1664 #endif
1665 return ret;
1666 }
1667
1668 uint32_t ide_status_read(void *opaque, uint32_t addr)
1669 {
1670 IDEBus *bus = opaque;
1671 IDEState *s = idebus_active_if(bus);
1672 int ret;
1673
1674 if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
1675 (s != bus->ifs && !s->bs))
1676 ret = 0;
1677 else
1678 ret = s->status;
1679 #ifdef DEBUG_IDE
1680 printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
1681 #endif
1682 return ret;
1683 }
1684
1685 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
1686 {
1687 IDEBus *bus = opaque;
1688 IDEState *s;
1689 int i;
1690
1691 #ifdef DEBUG_IDE
1692 printf("ide: write control addr=0x%x val=%02x\n", addr, val);
1693 #endif
1694 /* common for both drives */
1695 if (!(bus->cmd & IDE_CMD_RESET) &&
1696 (val & IDE_CMD_RESET)) {
1697 /* reset low to high */
1698 for(i = 0;i < 2; i++) {
1699 s = &bus->ifs[i];
1700 s->status = BUSY_STAT | SEEK_STAT;
1701 s->error = 0x01;
1702 }
1703 } else if ((bus->cmd & IDE_CMD_RESET) &&
1704 !(val & IDE_CMD_RESET)) {
1705 /* high to low */
1706 for(i = 0;i < 2; i++) {
1707 s = &bus->ifs[i];
1708 if (s->drive_kind == IDE_CD)
1709 s->status = 0x00; /* NOTE: READY is _not_ set */
1710 else
1711 s->status = READY_STAT | SEEK_STAT;
1712 ide_set_signature(s);
1713 }
1714 }
1715
1716 bus->cmd = val;
1717 }
1718
1719 /*
1720 * Returns true if the running PIO transfer is a PIO out (i.e. data is
1721 * transferred from the device to the guest), false if it's a PIO in
1722 */
1723 static bool ide_is_pio_out(IDEState *s)
1724 {
1725 if (s->end_transfer_func == ide_sector_write ||
1726 s->end_transfer_func == ide_atapi_cmd) {
1727 return false;
1728 } else if (s->end_transfer_func == ide_sector_read ||
1729 s->end_transfer_func == ide_transfer_stop ||
1730 s->end_transfer_func == ide_atapi_cmd_reply_end ||
1731 s->end_transfer_func == ide_dummy_transfer_stop) {
1732 return true;
1733 }
1734
1735 abort();
1736 }
1737
1738 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
1739 {
1740 IDEBus *bus = opaque;
1741 IDEState *s = idebus_active_if(bus);
1742 uint8_t *p;
1743
1744 /* PIO data access allowed only when DRQ bit is set. The result of a write
1745 * during PIO out is indeterminate, just ignore it. */
1746 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1747 return;
1748 }
1749
1750 p = s->data_ptr;
1751 *(uint16_t *)p = le16_to_cpu(val);
1752 p += 2;
1753 s->data_ptr = p;
1754 if (p >= s->data_end)
1755 s->end_transfer_func(s);
1756 }
1757
1758 uint32_t ide_data_readw(void *opaque, uint32_t addr)
1759 {
1760 IDEBus *bus = opaque;
1761 IDEState *s = idebus_active_if(bus);
1762 uint8_t *p;
1763 int ret;
1764
1765 /* PIO data access allowed only when DRQ bit is set. The result of a read
1766 * during PIO in is indeterminate, return 0 and don't move forward. */
1767 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1768 return 0;
1769 }
1770
1771 p = s->data_ptr;
1772 ret = cpu_to_le16(*(uint16_t *)p);
1773 p += 2;
1774 s->data_ptr = p;
1775 if (p >= s->data_end)
1776 s->end_transfer_func(s);
1777 return ret;
1778 }
1779
1780 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
1781 {
1782 IDEBus *bus = opaque;
1783 IDEState *s = idebus_active_if(bus);
1784 uint8_t *p;
1785
1786 /* PIO data access allowed only when DRQ bit is set. The result of a write
1787 * during PIO out is indeterminate, just ignore it. */
1788 if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
1789 return;
1790 }
1791
1792 p = s->data_ptr;
1793 *(uint32_t *)p = le32_to_cpu(val);
1794 p += 4;
1795 s->data_ptr = p;
1796 if (p >= s->data_end)
1797 s->end_transfer_func(s);
1798 }
1799
1800 uint32_t ide_data_readl(void *opaque, uint32_t addr)
1801 {
1802 IDEBus *bus = opaque;
1803 IDEState *s = idebus_active_if(bus);
1804 uint8_t *p;
1805 int ret;
1806
1807 /* PIO data access allowed only when DRQ bit is set. The result of a read
1808 * during PIO in is indeterminate, return 0 and don't move forward. */
1809 if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
1810 return 0;
1811 }
1812
1813 p = s->data_ptr;
1814 ret = cpu_to_le32(*(uint32_t *)p);
1815 p += 4;
1816 s->data_ptr = p;
1817 if (p >= s->data_end)
1818 s->end_transfer_func(s);
1819 return ret;
1820 }
1821
1822 static void ide_dummy_transfer_stop(IDEState *s)
1823 {
1824 s->data_ptr = s->io_buffer;
1825 s->data_end = s->io_buffer;
1826 s->io_buffer[0] = 0xff;
1827 s->io_buffer[1] = 0xff;
1828 s->io_buffer[2] = 0xff;
1829 s->io_buffer[3] = 0xff;
1830 }
1831
1832 static void ide_reset(IDEState *s)
1833 {
1834 #ifdef DEBUG_IDE
1835 printf("ide: reset\n");
1836 #endif
1837
1838 if (s->pio_aiocb) {
1839 bdrv_aio_cancel(s->pio_aiocb);
1840 s->pio_aiocb = NULL;
1841 }
1842
1843 if (s->drive_kind == IDE_CFATA)
1844 s->mult_sectors = 0;
1845 else
1846 s->mult_sectors = MAX_MULT_SECTORS;
1847 /* ide regs */
1848 s->feature = 0;
1849 s->error = 0;
1850 s->nsector = 0;
1851 s->sector = 0;
1852 s->lcyl = 0;
1853 s->hcyl = 0;
1854
1855 /* lba48 */
1856 s->hob_feature = 0;
1857 s->hob_sector = 0;
1858 s->hob_nsector = 0;
1859 s->hob_lcyl = 0;
1860 s->hob_hcyl = 0;
1861
1862 s->select = 0xa0;
1863 s->status = READY_STAT | SEEK_STAT;
1864
1865 s->lba48 = 0;
1866
1867 /* ATAPI specific */
1868 s->sense_key = 0;
1869 s->asc = 0;
1870 s->cdrom_changed = 0;
1871 s->packet_transfer_size = 0;
1872 s->elementary_transfer_size = 0;
1873 s->io_buffer_index = 0;
1874 s->cd_sector_size = 0;
1875 s->atapi_dma = 0;
1876 /* ATA DMA state */
1877 s->io_buffer_size = 0;
1878 s->req_nb_sectors = 0;
1879
1880 ide_set_signature(s);
1881 /* init the transfer handler so that 0xffff is returned on data
1882 accesses */
1883 s->end_transfer_func = ide_dummy_transfer_stop;
1884 ide_dummy_transfer_stop(s);
1885 s->media_changed = 0;
1886 }
1887
1888 void ide_bus_reset(IDEBus *bus)
1889 {
1890 bus->unit = 0;
1891 bus->cmd = 0;
1892 ide_reset(&bus->ifs[0]);
1893 ide_reset(&bus->ifs[1]);
1894 ide_clear_hob(bus);
1895
1896 /* pending async DMA */
1897 if (bus->dma->aiocb) {
1898 #ifdef DEBUG_AIO
1899 printf("aio_cancel\n");
1900 #endif
1901 bdrv_aio_cancel(bus->dma->aiocb);
1902 bus->dma->aiocb = NULL;
1903 }
1904
1905 /* reset dma provider too */
1906 bus->dma->ops->reset(bus->dma);
1907 }
1908
1909 static bool ide_cd_is_tray_open(void *opaque)
1910 {
1911 return ((IDEState *)opaque)->tray_open;
1912 }
1913
1914 static bool ide_cd_is_medium_locked(void *opaque)
1915 {
1916 return ((IDEState *)opaque)->tray_locked;
1917 }
1918
1919 static const BlockDevOps ide_cd_block_ops = {
1920 .change_media_cb = ide_cd_change_cb,
1921 .eject_request_cb = ide_cd_eject_request_cb,
1922 .is_tray_open = ide_cd_is_tray_open,
1923 .is_medium_locked = ide_cd_is_medium_locked,
1924 };
1925
1926 int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
1927 const char *version, const char *serial, const char *model,
1928 uint64_t wwn)
1929 {
1930 uint32_t cylinders, heads, secs;
1931 uint64_t nb_sectors;
1932
1933 s->bs = bs;
1934 s->drive_kind = kind;
1935
1936 bdrv_get_geometry(bs, &nb_sectors);
1937 hd_geometry_guess(bs, &cylinders, &heads, &secs, &s->chs_trans);
1938 if (cylinders < 1 || cylinders > 16383) {
1939 error_report("cyls must be between 1 and 16383");
1940 return -1;
1941 }
1942 if (heads < 1 || heads > 16) {
1943 error_report("heads must be between 1 and 16");
1944 return -1;
1945 }
1946 if (secs < 1 || secs > 63) {
1947 error_report("secs must be between 1 and 63");
1948 return -1;
1949 }
1950 s->cylinders = cylinders;
1951 s->heads = heads;
1952 s->sectors = secs;
1953 s->nb_sectors = nb_sectors;
1954 s->wwn = wwn;
1955 /* The SMART values should be preserved across power cycles
1956 but they aren't. */
1957 s->smart_enabled = 1;
1958 s->smart_autosave = 1;
1959 s->smart_errors = 0;
1960 s->smart_selftest_count = 0;
1961 if (kind == IDE_CD) {
1962 bdrv_set_dev_ops(bs, &ide_cd_block_ops, s);
1963 bdrv_set_buffer_alignment(bs, 2048);
1964 } else {
1965 if (!bdrv_is_inserted(s->bs)) {
1966 error_report("Device needs media, but drive is empty");
1967 return -1;
1968 }
1969 if (bdrv_is_read_only(bs)) {
1970 error_report("Can't use a read-only drive");
1971 return -1;
1972 }
1973 }
1974 if (serial) {
1975 pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
1976 } else {
1977 snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
1978 "QM%05d", s->drive_serial);
1979 }
1980 if (model) {
1981 pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
1982 } else {
1983 switch (kind) {
1984 case IDE_CD:
1985 strcpy(s->drive_model_str, "QEMU DVD-ROM");
1986 break;
1987 case IDE_CFATA:
1988 strcpy(s->drive_model_str, "QEMU MICRODRIVE");
1989 break;
1990 default:
1991 strcpy(s->drive_model_str, "QEMU HARDDISK");
1992 break;
1993 }
1994 }
1995
1996 if (version) {
1997 pstrcpy(s->version, sizeof(s->version), version);
1998 } else {
1999 pstrcpy(s->version, sizeof(s->version), qemu_get_version());
2000 }
2001
2002 ide_reset(s);
2003 bdrv_iostatus_enable(bs);
2004 return 0;
2005 }
2006
2007 static void ide_init1(IDEBus *bus, int unit)
2008 {
2009 static int drive_serial = 1;
2010 IDEState *s = &bus->ifs[unit];
2011
2012 s->bus = bus;
2013 s->unit = unit;
2014 s->drive_serial = drive_serial++;
2015 /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
2016 s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
2017 s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
2018 memset(s->io_buffer, 0, s->io_buffer_total_len);
2019
2020 s->smart_selftest_data = qemu_blockalign(s->bs, 512);
2021 memset(s->smart_selftest_data, 0, 512);
2022
2023 s->sector_write_timer = qemu_new_timer_ns(vm_clock,
2024 ide_sector_write_timer_cb, s);
2025 }
2026
2027 static void ide_nop_start(IDEDMA *dma, IDEState *s,
2028 BlockDriverCompletionFunc *cb)
2029 {
2030 }
2031
2032 static int ide_nop(IDEDMA *dma)
2033 {
2034 return 0;
2035 }
2036
2037 static int ide_nop_int(IDEDMA *dma, int x)
2038 {
2039 return 0;
2040 }
2041
2042 static void ide_nop_restart(void *opaque, int x, RunState y)
2043 {
2044 }
2045
2046 static const IDEDMAOps ide_dma_nop_ops = {
2047 .start_dma = ide_nop_start,
2048 .start_transfer = ide_nop,
2049 .prepare_buf = ide_nop_int,
2050 .rw_buf = ide_nop_int,
2051 .set_unit = ide_nop_int,
2052 .add_status = ide_nop_int,
2053 .set_inactive = ide_nop,
2054 .restart_cb = ide_nop_restart,
2055 .reset = ide_nop,
2056 };
2057
2058 static IDEDMA ide_dma_nop = {
2059 .ops = &ide_dma_nop_ops,
2060 .aiocb = NULL,
2061 };
2062
2063 void ide_init2(IDEBus *bus, qemu_irq irq)
2064 {
2065 int i;
2066
2067 for(i = 0; i < 2; i++) {
2068 ide_init1(bus, i);
2069 ide_reset(&bus->ifs[i]);
2070 }
2071 bus->irq = irq;
2072 bus->dma = &ide_dma_nop;
2073 }
2074
2075 /* TODO convert users to qdev and remove */
2076 void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
2077 DriveInfo *hd1, qemu_irq irq)
2078 {
2079 int i;
2080 DriveInfo *dinfo;
2081
2082 for(i = 0; i < 2; i++) {
2083 dinfo = i == 0 ? hd0 : hd1;
2084 ide_init1(bus, i);
2085 if (dinfo) {
2086 if (ide_init_drive(&bus->ifs[i], dinfo->bdrv,
2087 dinfo->media_cd ? IDE_CD : IDE_HD, NULL,
2088 *dinfo->serial ? dinfo->serial : NULL,
2089 NULL, 0) < 0) {
2090 error_report("Can't set up IDE drive %s", dinfo->id);
2091 exit(1);
2092 }
2093 bdrv_attach_dev_nofail(dinfo->bdrv, &bus->ifs[i]);
2094 } else {
2095 ide_reset(&bus->ifs[i]);
2096 }
2097 }
2098 bus->irq = irq;
2099 bus->dma = &ide_dma_nop;
2100 }
2101
2102 static const MemoryRegionPortio ide_portio_list[] = {
2103 { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
2104 { 0, 2, 2, .read = ide_data_readw, .write = ide_data_writew },
2105 { 0, 4, 4, .read = ide_data_readl, .write = ide_data_writel },
2106 PORTIO_END_OF_LIST(),
2107 };
2108
2109 static const MemoryRegionPortio ide_portio2_list[] = {
2110 { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
2111 PORTIO_END_OF_LIST(),
2112 };
2113
2114 void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
2115 {
2116 /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
2117 bridge has been setup properly to always register with ISA. */
2118 isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
2119
2120 if (iobase2) {
2121 isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
2122 }
2123 }
2124
2125 static bool is_identify_set(void *opaque, int version_id)
2126 {
2127 IDEState *s = opaque;
2128
2129 return s->identify_set != 0;
2130 }
2131
2132 static EndTransferFunc* transfer_end_table[] = {
2133 ide_sector_read,
2134 ide_sector_write,
2135 ide_transfer_stop,
2136 ide_atapi_cmd_reply_end,
2137 ide_atapi_cmd,
2138 ide_dummy_transfer_stop,
2139 };
2140
2141 static int transfer_end_table_idx(EndTransferFunc *fn)
2142 {
2143 int i;
2144
2145 for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
2146 if (transfer_end_table[i] == fn)
2147 return i;
2148
2149 return -1;
2150 }
2151
2152 static int ide_drive_post_load(void *opaque, int version_id)
2153 {
2154 IDEState *s = opaque;
2155
2156 if (version_id < 3) {
2157 if (s->sense_key == UNIT_ATTENTION &&
2158 s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
2159 s->cdrom_changed = 1;
2160 }
2161 }
2162 if (s->identify_set) {
2163 bdrv_set_enable_write_cache(s->bs, !!(s->identify_data[85] & (1 << 5)));
2164 }
2165 return 0;
2166 }
2167
2168 static int ide_drive_pio_post_load(void *opaque, int version_id)
2169 {
2170 IDEState *s = opaque;
2171
2172 if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
2173 return -EINVAL;
2174 }
2175 s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
2176 s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
2177 s->data_end = s->data_ptr + s->cur_io_buffer_len;
2178
2179 return 0;
2180 }
2181
2182 static void ide_drive_pio_pre_save(void *opaque)
2183 {
2184 IDEState *s = opaque;
2185 int idx;
2186
2187 s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
2188 s->cur_io_buffer_len = s->data_end - s->data_ptr;
2189
2190 idx = transfer_end_table_idx(s->end_transfer_func);
2191 if (idx == -1) {
2192 fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
2193 __func__);
2194 s->end_transfer_fn_idx = 2;
2195 } else {
2196 s->end_transfer_fn_idx = idx;
2197 }
2198 }
2199
2200 static bool ide_drive_pio_state_needed(void *opaque)
2201 {
2202 IDEState *s = opaque;
2203
2204 return ((s->status & DRQ_STAT) != 0)
2205 || (s->bus->error_status & BM_STATUS_PIO_RETRY);
2206 }
2207
2208 static bool ide_tray_state_needed(void *opaque)
2209 {
2210 IDEState *s = opaque;
2211
2212 return s->tray_open || s->tray_locked;
2213 }
2214
2215 static bool ide_atapi_gesn_needed(void *opaque)
2216 {
2217 IDEState *s = opaque;
2218
2219 return s->events.new_media || s->events.eject_request;
2220 }
2221
2222 static bool ide_error_needed(void *opaque)
2223 {
2224 IDEBus *bus = opaque;
2225
2226 return (bus->error_status != 0);
2227 }
2228
2229 /* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
2230 static const VMStateDescription vmstate_ide_atapi_gesn_state = {
2231 .name ="ide_drive/atapi/gesn_state",
2232 .version_id = 1,
2233 .minimum_version_id = 1,
2234 .minimum_version_id_old = 1,
2235 .fields = (VMStateField []) {
2236 VMSTATE_BOOL(events.new_media, IDEState),
2237 VMSTATE_BOOL(events.eject_request, IDEState),
2238 VMSTATE_END_OF_LIST()
2239 }
2240 };
2241
2242 static const VMStateDescription vmstate_ide_tray_state = {
2243 .name = "ide_drive/tray_state",
2244 .version_id = 1,
2245 .minimum_version_id = 1,
2246 .minimum_version_id_old = 1,
2247 .fields = (VMStateField[]) {
2248 VMSTATE_BOOL(tray_open, IDEState),
2249 VMSTATE_BOOL(tray_locked, IDEState),
2250 VMSTATE_END_OF_LIST()
2251 }
2252 };
2253
2254 static const VMStateDescription vmstate_ide_drive_pio_state = {
2255 .name = "ide_drive/pio_state",
2256 .version_id = 1,
2257 .minimum_version_id = 1,
2258 .minimum_version_id_old = 1,
2259 .pre_save = ide_drive_pio_pre_save,
2260 .post_load = ide_drive_pio_post_load,
2261 .fields = (VMStateField []) {
2262 VMSTATE_INT32(req_nb_sectors, IDEState),
2263 VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
2264 vmstate_info_uint8, uint8_t),
2265 VMSTATE_INT32(cur_io_buffer_offset, IDEState),
2266 VMSTATE_INT32(cur_io_buffer_len, IDEState),
2267 VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
2268 VMSTATE_INT32(elementary_transfer_size, IDEState),
2269 VMSTATE_INT32(packet_transfer_size, IDEState),
2270 VMSTATE_END_OF_LIST()
2271 }
2272 };
2273
2274 const VMStateDescription vmstate_ide_drive = {
2275 .name = "ide_drive",
2276 .version_id = 3,
2277 .minimum_version_id = 0,
2278 .minimum_version_id_old = 0,
2279 .post_load = ide_drive_post_load,
2280 .fields = (VMStateField []) {
2281 VMSTATE_INT32(mult_sectors, IDEState),
2282 VMSTATE_INT32(identify_set, IDEState),
2283 VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
2284 VMSTATE_UINT8(feature, IDEState),
2285 VMSTATE_UINT8(error, IDEState),
2286 VMSTATE_UINT32(nsector, IDEState),
2287 VMSTATE_UINT8(sector, IDEState),
2288 VMSTATE_UINT8(lcyl, IDEState),
2289 VMSTATE_UINT8(hcyl, IDEState),
2290 VMSTATE_UINT8(hob_feature, IDEState),
2291 VMSTATE_UINT8(hob_sector, IDEState),
2292 VMSTATE_UINT8(hob_nsector, IDEState),
2293 VMSTATE_UINT8(hob_lcyl, IDEState),
2294 VMSTATE_UINT8(hob_hcyl, IDEState),
2295 VMSTATE_UINT8(select, IDEState),
2296 VMSTATE_UINT8(status, IDEState),
2297 VMSTATE_UINT8(lba48, IDEState),
2298 VMSTATE_UINT8(sense_key, IDEState),
2299 VMSTATE_UINT8(asc, IDEState),
2300 VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
2301 VMSTATE_END_OF_LIST()
2302 },
2303 .subsections = (VMStateSubsection []) {
2304 {
2305 .vmsd = &vmstate_ide_drive_pio_state,
2306 .needed = ide_drive_pio_state_needed,
2307 }, {
2308 .vmsd = &vmstate_ide_tray_state,
2309 .needed = ide_tray_state_needed,
2310 }, {
2311 .vmsd = &vmstate_ide_atapi_gesn_state,
2312 .needed = ide_atapi_gesn_needed,
2313 }, {
2314 /* empty */
2315 }
2316 }
2317 };
2318
2319 static const VMStateDescription vmstate_ide_error_status = {
2320 .name ="ide_bus/error",
2321 .version_id = 1,
2322 .minimum_version_id = 1,
2323 .minimum_version_id_old = 1,
2324 .fields = (VMStateField []) {
2325 VMSTATE_INT32(error_status, IDEBus),
2326 VMSTATE_END_OF_LIST()
2327 }
2328 };
2329
2330 const VMStateDescription vmstate_ide_bus = {
2331 .name = "ide_bus",
2332 .version_id = 1,
2333 .minimum_version_id = 1,
2334 .minimum_version_id_old = 1,
2335 .fields = (VMStateField []) {
2336 VMSTATE_UINT8(cmd, IDEBus),
2337 VMSTATE_UINT8(unit, IDEBus),
2338 VMSTATE_END_OF_LIST()
2339 },
2340 .subsections = (VMStateSubsection []) {
2341 {
2342 .vmsd = &vmstate_ide_error_status,
2343 .needed = ide_error_needed,
2344 }, {
2345 /* empty */
2346 }
2347 }
2348 };
2349
2350 void ide_drive_get(DriveInfo **hd, int max_bus)
2351 {
2352 int i;
2353
2354 if (drive_get_max_bus(IF_IDE) >= max_bus) {
2355 fprintf(stderr, "qemu: too many IDE bus: %d\n", max_bus);
2356 exit(1);
2357 }
2358
2359 for(i = 0; i < max_bus * MAX_IDE_DEVS; i++) {
2360 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
2361 }
2362 }
Qemu copy for testing