2 * QEMU IDE disk and CD-ROM Emulator
4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
41 #include <netinet/in.h>
48 #define NO_THUNK_TYPE_SIZE
51 /* debug IDE devices */
53 //#define DEBUG_IDE_ATAPI
55 /* Bits of HD_STATUS */
57 #define INDEX_STAT 0x02
58 #define ECC_STAT 0x04 /* Corrected error */
60 #define SEEK_STAT 0x10
62 #define WRERR_STAT 0x20
63 #define READY_STAT 0x40
64 #define BUSY_STAT 0x80
66 /* Bits for HD_ERROR */
67 #define MARK_ERR 0x01 /* Bad address mark */
68 #define TRK0_ERR 0x02 /* couldn't find track 0 */
69 #define ABRT_ERR 0x04 /* Command aborted */
70 #define MCR_ERR 0x08 /* media change request */
71 #define ID_ERR 0x10 /* ID field not found */
72 #define MC_ERR 0x20 /* media changed */
73 #define ECC_ERR 0x40 /* Uncorrectable ECC error */
74 #define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
75 #define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
77 /* Bits of HD_NSECTOR */
83 #define IDE_CMD_RESET 0x04
84 #define IDE_CMD_DISABLE_IRQ 0x02
86 /* ATA/ATAPI Commands pre T13 Spec */
91 #define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
95 #define WIN_SRST 0x08 /* ATAPI soft reset command */
96 #define WIN_DEVICE_RESET 0x08
100 #define WIN_RECAL 0x10
101 #define WIN_RESTORE WIN_RECAL
103 * 0x10->0x1F Reserved
105 #define WIN_READ 0x20 /* 28-Bit */
106 #define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
107 #define WIN_READ_LONG 0x22 /* 28-Bit */
108 #define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
109 #define WIN_READ_EXT 0x24 /* 48-Bit */
110 #define WIN_READDMA_EXT 0x25 /* 48-Bit */
111 #define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
112 #define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
116 #define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
118 * 0x2A->0x2F Reserved
120 #define WIN_WRITE 0x30 /* 28-Bit */
121 #define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
122 #define WIN_WRITE_LONG 0x32 /* 28-Bit */
123 #define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
124 #define WIN_WRITE_EXT 0x34 /* 48-Bit */
125 #define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
126 #define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
127 #define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
128 #define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
129 #define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
131 * 0x3A->0x3B Reserved
133 #define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
135 * 0x3D->0x3F Reserved
137 #define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
138 #define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
139 #define WIN_VERIFY_EXT 0x42 /* 48-Bit */
141 * 0x43->0x4F Reserved
143 #define WIN_FORMAT 0x50
145 * 0x51->0x5F Reserved
147 #define WIN_INIT 0x60
149 * 0x61->0x5F Reserved
151 #define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
152 #define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
153 #define WIN_DIAGNOSE 0x90
154 #define WIN_SPECIFY 0x91 /* set drive geometry translation */
155 #define WIN_DOWNLOAD_MICROCODE 0x92
156 #define WIN_STANDBYNOW2 0x94
157 #define WIN_STANDBY2 0x96
158 #define WIN_SETIDLE2 0x97
159 #define WIN_CHECKPOWERMODE2 0x98
160 #define WIN_SLEEPNOW2 0x99
164 #define WIN_PACKETCMD 0xA0 /* Send a packet command. */
165 #define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
166 #define WIN_QUEUED_SERVICE 0xA2
167 #define WIN_SMART 0xB0 /* self-monitoring and reporting */
168 #define CFA_ERASE_SECTORS 0xC0
169 #define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
170 #define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
171 #define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
172 #define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
173 #define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
174 #define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
175 #define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
176 #define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
177 #define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
178 #define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
179 #define WIN_GETMEDIASTATUS 0xDA
180 #define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
181 #define WIN_POSTBOOT 0xDC
182 #define WIN_PREBOOT 0xDD
183 #define WIN_DOORLOCK 0xDE /* lock door on removable drives */
184 #define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
185 #define WIN_STANDBYNOW1 0xE0
186 #define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
187 #define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
188 #define WIN_SETIDLE1 0xE3
189 #define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
190 #define WIN_CHECKPOWERMODE1 0xE5
191 #define WIN_SLEEPNOW1 0xE6
192 #define WIN_FLUSH_CACHE 0xE7
193 #define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
194 #define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
195 /* SET_FEATURES 0x22 or 0xDD */
196 #define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
197 #define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
198 #define WIN_MEDIAEJECT 0xED
199 #define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
200 #define WIN_SETFEATURES 0xEF /* set special drive features */
201 #define EXABYTE_ENABLE_NEST 0xF0
202 #define WIN_SECURITY_SET_PASS 0xF1
203 #define WIN_SECURITY_UNLOCK 0xF2
204 #define WIN_SECURITY_ERASE_PREPARE 0xF3
205 #define WIN_SECURITY_ERASE_UNIT 0xF4
206 #define WIN_SECURITY_FREEZE_LOCK 0xF5
207 #define WIN_SECURITY_DISABLE 0xF6
208 #define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
209 #define WIN_SET_MAX 0xF9
210 #define DISABLE_SEAGATE 0xFB
212 /* set to 1 set disable mult support */
213 #define MAX_MULT_SECTORS 8
217 #define ATAPI_PACKET_SIZE 12
219 /* The generic packet command opcodes for CD/DVD Logical Units,
220 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
221 #define GPCMD_BLANK 0xa1
222 #define GPCMD_CLOSE_TRACK 0x5b
223 #define GPCMD_FLUSH_CACHE 0x35
224 #define GPCMD_FORMAT_UNIT 0x04
225 #define GPCMD_GET_CONFIGURATION 0x46
226 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
227 #define GPCMD_GET_PERFORMANCE 0xac
228 #define GPCMD_INQUIRY 0x12
229 #define GPCMD_LOAD_UNLOAD 0xa6
230 #define GPCMD_MECHANISM_STATUS 0xbd
231 #define GPCMD_MODE_SELECT_10 0x55
232 #define GPCMD_MODE_SENSE_10 0x5a
233 #define GPCMD_PAUSE_RESUME 0x4b
234 #define GPCMD_PLAY_AUDIO_10 0x45
235 #define GPCMD_PLAY_AUDIO_MSF 0x47
236 #define GPCMD_PLAY_AUDIO_TI 0x48
237 #define GPCMD_PLAY_CD 0xbc
238 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
239 #define GPCMD_READ_10 0x28
240 #define GPCMD_READ_12 0xa8
241 #define GPCMD_READ_CDVD_CAPACITY 0x25
242 #define GPCMD_READ_CD 0xbe
243 #define GPCMD_READ_CD_MSF 0xb9
244 #define GPCMD_READ_DISC_INFO 0x51
245 #define GPCMD_READ_DVD_STRUCTURE 0xad
246 #define GPCMD_READ_FORMAT_CAPACITIES 0x23
247 #define GPCMD_READ_HEADER 0x44
248 #define GPCMD_READ_TRACK_RZONE_INFO 0x52
249 #define GPCMD_READ_SUBCHANNEL 0x42
250 #define GPCMD_READ_TOC_PMA_ATIP 0x43
251 #define GPCMD_REPAIR_RZONE_TRACK 0x58
252 #define GPCMD_REPORT_KEY 0xa4
253 #define GPCMD_REQUEST_SENSE 0x03
254 #define GPCMD_RESERVE_RZONE_TRACK 0x53
255 #define GPCMD_SCAN 0xba
256 #define GPCMD_SEEK 0x2b
257 #define GPCMD_SEND_DVD_STRUCTURE 0xad
258 #define GPCMD_SEND_EVENT 0xa2
259 #define GPCMD_SEND_KEY 0xa3
260 #define GPCMD_SEND_OPC 0x54
261 #define GPCMD_SET_READ_AHEAD 0xa7
262 #define GPCMD_SET_STREAMING 0xb6
263 #define GPCMD_START_STOP_UNIT 0x1b
264 #define GPCMD_STOP_PLAY_SCAN 0x4e
265 #define GPCMD_TEST_UNIT_READY 0x00
266 #define GPCMD_VERIFY_10 0x2f
267 #define GPCMD_WRITE_10 0x2a
268 #define GPCMD_WRITE_AND_VERIFY_10 0x2e
269 /* This is listed as optional in ATAPI 2.6, but is (curiously)
270 * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
271 * Table 377 as an MMC command for SCSi devices though... Most ATAPI
272 * drives support it. */
273 #define GPCMD_SET_SPEED 0xbb
274 /* This seems to be a SCSI specific CD-ROM opcode
275 * to play data at track/index */
276 #define GPCMD_PLAYAUDIO_TI 0x48
278 * From MS Media Status Notification Support Specification. For
281 #define GPCMD_GET_MEDIA_STATUS 0xda
283 /* Mode page codes for mode sense/set */
284 #define GPMODE_R_W_ERROR_PAGE 0x01
285 #define GPMODE_WRITE_PARMS_PAGE 0x05
286 #define GPMODE_AUDIO_CTL_PAGE 0x0e
287 #define GPMODE_POWER_PAGE 0x1a
288 #define GPMODE_FAULT_FAIL_PAGE 0x1c
289 #define GPMODE_TO_PROTECT_PAGE 0x1d
290 #define GPMODE_CAPABILITIES_PAGE 0x2a
291 #define GPMODE_ALL_PAGES 0x3f
292 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
293 * of MODE_SENSE_POWER_PAGE */
294 #define GPMODE_CDROM_PAGE 0x0d
296 #define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */
297 #define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */
298 #define ATAPI_INT_REASON_REL 0x04
299 #define ATAPI_INT_REASON_TAG 0xf8
301 /* same constants as bochs */
302 #define ASC_LOGICAL_BLOCK_OOR 0x21
303 #define ASC_INV_FIELD_IN_CMD_PACKET 0x24
304 #define ASC_MEDIUM_NOT_PRESENT 0x3a
305 #define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39
308 #define SENSE_NOT_READY 2
309 #define SENSE_ILLEGAL_REQUEST 5
310 #define SENSE_UNIT_ATTENTION 6
314 typedef void EndTransferFunc(struct IDEState
*);
316 typedef struct IDEState
{
320 int cylinders
, heads
, sectors
;
327 uint16_t nsector
; /* 0 is 256 to ease computations */
333 /* 0x3f6 command, only meaningful for drive 0 */
335 /* depends on bit 4 in select, only meaningful for drive 0 */
336 struct IDEState
*cur_drive
;
337 BlockDriverState
*bs
;
341 int packet_transfer_size
;
342 int elementary_transfer_size
;
345 /* transfer handling */
346 int req_nb_sectors
; /* number of sectors per interrupt */
347 EndTransferFunc
*end_transfer_func
;
350 uint8_t io_buffer
[MAX_MULT_SECTORS
*512 + 4];
353 IDEState ide_state
[MAX_DISKS
];
354 IDEState
*ide_table
[0x400 >> 3];
356 static inline IDEState
*get_ide_interface(uint32_t addr
)
358 return ide_table
[addr
>> 3];
361 static void padstr(char *str
, const char *src
, int len
)
364 for(i
= 0; i
< len
; i
++) {
369 *(char *)((long)str
^ 1) = v
;
374 static void ide_identify(IDEState
*s
)
377 unsigned int oldsize
;
379 memset(s
->io_buffer
, 0, 512);
380 p
= (uint16_t *)s
->io_buffer
;
381 stw_raw(p
+ 0, 0x0040);
382 stw_raw(p
+ 1, s
->cylinders
);
383 stw_raw(p
+ 3, s
->heads
);
384 stw_raw(p
+ 4, 512 * s
->sectors
); /* sectors */
385 stw_raw(p
+ 5, 512); /* sector size */
386 stw_raw(p
+ 6, s
->sectors
);
387 padstr((uint8_t *)(p
+ 10), "QM00001", 20); /* serial number */
388 stw_raw(p
+ 20, 3); /* buffer type */
389 stw_raw(p
+ 21, 512); /* cache size in sectors */
390 stw_raw(p
+ 22, 4); /* ecc bytes */
391 padstr((uint8_t *)(p
+ 23), QEMU_VERSION
, 8); /* firmware version */
392 padstr((uint8_t *)(p
+ 27), "QEMU HARDDISK", 40); /* model */
393 #if MAX_MULT_SECTORS > 1
394 stw_raw(p
+ 47, MAX_MULT_SECTORS
);
396 stw_raw(p
+ 48, 1); /* dword I/O */
397 stw_raw(p
+ 49, 1 << 9); /* LBA supported, no DMA */
398 stw_raw(p
+ 51, 0x200); /* PIO transfer cycle */
399 stw_raw(p
+ 52, 0x200); /* DMA transfer cycle */
400 stw_raw(p
+ 54, s
->cylinders
);
401 stw_raw(p
+ 55, s
->heads
);
402 stw_raw(p
+ 56, s
->sectors
);
403 oldsize
= s
->cylinders
* s
->heads
* s
->sectors
;
404 stw_raw(p
+ 57, oldsize
);
405 stw_raw(p
+ 58, oldsize
>> 16);
407 stw_raw(p
+ 59, 0x100 | s
->mult_sectors
);
408 stw_raw(p
+ 60, s
->nb_sectors
);
409 stw_raw(p
+ 61, s
->nb_sectors
>> 16);
410 stw_raw(p
+ 80, (1 << 1) | (1 << 2));
411 stw_raw(p
+ 82, (1 << 14));
412 stw_raw(p
+ 83, (1 << 14));
413 stw_raw(p
+ 84, (1 << 14));
414 stw_raw(p
+ 85, (1 << 14));
416 stw_raw(p
+ 87, (1 << 14));
419 static void ide_atapi_identify(IDEState
*s
)
423 memset(s
->io_buffer
, 0, 512);
424 p
= (uint16_t *)s
->io_buffer
;
425 /* Removable CDROM, 50us response, 12 byte packets */
426 stw_raw(p
+ 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
427 stw_raw(p
+ 1, s
->cylinders
);
428 stw_raw(p
+ 3, s
->heads
);
429 stw_raw(p
+ 4, 512 * s
->sectors
); /* sectors */
430 stw_raw(p
+ 5, 512); /* sector size */
431 stw_raw(p
+ 6, s
->sectors
);
432 padstr((uint8_t *)(p
+ 10), "QM00001", 20); /* serial number */
433 stw_raw(p
+ 20, 3); /* buffer type */
434 stw_raw(p
+ 21, 512); /* cache size in sectors */
435 stw_raw(p
+ 22, 4); /* ecc bytes */
436 padstr((uint8_t *)(p
+ 23), QEMU_VERSION
, 8); /* firmware version */
437 padstr((uint8_t *)(p
+ 27), "QEMU CD-ROM", 40); /* model */
438 stw_raw(p
+ 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
439 stw_raw(p
+ 49, 1 << 9); /* LBA supported, no DMA */
440 stw_raw(p
+ 53, 3); /* words 64-70, 54-58 valid */
441 stw_raw(p
+ 63, 0x103); /* DMA modes XXX: may be incorrect */
442 stw_raw(p
+ 64, 1); /* PIO modes */
443 stw_raw(p
+ 65, 0xb4); /* minimum DMA multiword tx cycle time */
444 stw_raw(p
+ 66, 0xb4); /* recommended DMA multiword tx cycle time */
445 stw_raw(p
+ 67, 0x12c); /* minimum PIO cycle time without flow control */
446 stw_raw(p
+ 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
448 stw_raw(p
+ 71, 30); /* in ns */
449 stw_raw(p
+ 72, 30); /* in ns */
451 stw_raw(p
+ 80, 0x1e); /* support up to ATA/ATAPI-4 */
454 static void ide_set_signature(IDEState
*s
)
456 s
->select
&= 0xf0; /* clear head */
472 static inline void ide_abort_command(IDEState
*s
)
474 s
->status
= READY_STAT
| ERR_STAT
;
478 static inline void ide_set_irq(IDEState
*s
)
480 if (!(s
->cmd
& IDE_CMD_DISABLE_IRQ
)) {
481 pic_set_irq(s
->irq
, 1);
485 /* prepare data transfer and tell what to do after */
486 static void ide_transfer_start(IDEState
*s
, uint8_t *buf
, int size
,
487 EndTransferFunc
*end_transfer_func
)
489 s
->end_transfer_func
= end_transfer_func
;
491 s
->data_end
= buf
+ size
;
492 s
->status
|= DRQ_STAT
;
495 static void ide_transfer_stop(IDEState
*s
)
497 s
->end_transfer_func
= ide_transfer_stop
;
498 s
->data_ptr
= s
->io_buffer
;
499 s
->data_end
= s
->io_buffer
;
500 s
->status
&= ~DRQ_STAT
;
503 static int64_t ide_get_sector(IDEState
*s
)
506 if (s
->select
& 0x40) {
508 sector_num
= ((s
->select
& 0x0f) << 24) | (s
->hcyl
<< 16) |
509 (s
->lcyl
<< 8) | s
->sector
;
511 sector_num
= ((s
->hcyl
<< 8) | s
->lcyl
) * s
->heads
* s
->sectors
+
512 (s
->select
& 0x0f) * s
->sectors
+
518 static void ide_set_sector(IDEState
*s
, int64_t sector_num
)
521 if (s
->select
& 0x40) {
522 s
->select
= (s
->select
& 0xf0) | (sector_num
>> 24);
523 s
->hcyl
= (sector_num
>> 16);
524 s
->lcyl
= (sector_num
>> 8);
525 s
->sector
= (sector_num
);
527 cyl
= sector_num
/ (s
->heads
* s
->sectors
);
528 r
= sector_num
% (s
->heads
* s
->sectors
);
531 s
->select
= (s
->select
& 0xf0) | (r
/ s
->sectors
);
532 s
->sector
= (r
% s
->sectors
) + 1;
536 static void ide_sector_read(IDEState
*s
)
541 s
->status
= READY_STAT
| SEEK_STAT
;
542 sector_num
= ide_get_sector(s
);
545 /* no more sector to read from disk */
546 ide_transfer_stop(s
);
548 #if defined(DEBUG_IDE)
549 printf("read sector=%Ld\n", sector_num
);
551 if (n
> s
->req_nb_sectors
)
552 n
= s
->req_nb_sectors
;
553 ret
= bdrv_read(s
->bs
, sector_num
, s
->io_buffer
, n
);
554 ide_transfer_start(s
, s
->io_buffer
, 512 * n
, ide_sector_read
);
556 ide_set_sector(s
, sector_num
+ n
);
561 static void ide_sector_write(IDEState
*s
)
566 s
->status
= READY_STAT
| SEEK_STAT
;
567 sector_num
= ide_get_sector(s
);
568 #if defined(DEBUG_IDE)
569 printf("write sector=%Ld\n", sector_num
);
572 if (n
> s
->req_nb_sectors
)
573 n
= s
->req_nb_sectors
;
574 ret
= bdrv_write(s
->bs
, sector_num
, s
->io_buffer
, n
);
576 if (s
->nsector
== 0) {
577 /* no more sector to write */
578 ide_transfer_stop(s
);
581 if (n1
> s
->req_nb_sectors
)
582 n1
= s
->req_nb_sectors
;
583 ide_transfer_start(s
, s
->io_buffer
, 512 * n1
, ide_sector_write
);
585 ide_set_sector(s
, sector_num
+ n
);
589 static void ide_atapi_cmd_ok(IDEState
*s
)
592 s
->status
= READY_STAT
;
593 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
597 static void ide_atapi_cmd_error(IDEState
*s
, int sense_key
, int asc
)
599 #ifdef DEBUG_IDE_ATAPI
600 printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key
, asc
);
602 s
->error
= sense_key
<< 4;
603 s
->status
= READY_STAT
| ERR_STAT
;
604 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
605 s
->sense_key
= sense_key
;
610 static inline void cpu_to_ube16(uint8_t *buf
, int val
)
616 static inline void cpu_to_ube32(uint8_t *buf
, unsigned int val
)
624 static inline int ube16_to_cpu(const uint8_t *buf
)
626 return (buf
[0] << 8) | buf
[1];
629 static inline int ube32_to_cpu(const uint8_t *buf
)
631 return (buf
[0] << 24) | (buf
[1] << 16) | (buf
[2] << 8) | buf
[3];
634 /* The whole ATAPI transfer logic is handled in this function */
635 static void ide_atapi_cmd_reply_end(IDEState
*s
)
637 int byte_count_limit
, size
;
638 #ifdef DEBUG_IDE_ATAPI
639 printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
640 s
->packet_transfer_size
,
641 s
->elementary_transfer_size
,
644 if (s
->packet_transfer_size
<= 0) {
645 /* end of transfer */
646 ide_transfer_stop(s
);
647 s
->status
= READY_STAT
;
648 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
650 #ifdef DEBUG_IDE_ATAPI
651 printf("status=0x%x\n", s
->status
);
654 /* see if a new sector must be read */
655 if (s
->lba
!= -1 && s
->io_buffer_index
>= 2048) {
656 bdrv_read(s
->bs
, (int64_t)s
->lba
<< 2, s
->io_buffer
, 4);
658 s
->io_buffer_index
= 0;
660 if (s
->elementary_transfer_size
> 0) {
661 /* there are some data left to transmit in this elementary
663 size
= 2048 - s
->io_buffer_index
;
664 if (size
> s
->elementary_transfer_size
)
665 size
= s
->elementary_transfer_size
;
666 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
,
667 size
, ide_atapi_cmd_reply_end
);
668 s
->packet_transfer_size
-= size
;
669 s
->elementary_transfer_size
-= size
;
670 s
->io_buffer_index
+= size
;
672 /* a new transfer is needed */
673 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
;
674 byte_count_limit
= s
->lcyl
| (s
->hcyl
<< 8);
675 #ifdef DEBUG_IDE_ATAPI
676 printf("byte_count_limit=%d\n", byte_count_limit
);
678 if (byte_count_limit
== 0xffff)
680 size
= s
->packet_transfer_size
;
681 if (size
> byte_count_limit
) {
682 /* byte count limit must be even if this case */
683 if (byte_count_limit
& 1)
685 size
= byte_count_limit
;
690 s
->elementary_transfer_size
= size
;
691 /* we cannot transmit more than one sector at a time */
693 if (size
> (2048 - s
->io_buffer_index
))
694 size
= (2048 - s
->io_buffer_index
);
696 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
,
697 size
, ide_atapi_cmd_reply_end
);
698 s
->packet_transfer_size
-= size
;
699 s
->elementary_transfer_size
-= size
;
700 s
->io_buffer_index
+= size
;
702 #ifdef DEBUG_IDE_ATAPI
703 printf("status=0x%x\n", s
->status
);
709 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
710 static void ide_atapi_cmd_reply(IDEState
*s
, int size
, int max_size
)
714 s
->lba
= -1; /* no sector read */
715 s
->packet_transfer_size
= size
;
716 s
->elementary_transfer_size
= 0;
717 s
->io_buffer_index
= 0;
719 s
->status
= READY_STAT
;
720 ide_atapi_cmd_reply_end(s
);
723 /* start a CD-CDROM read command */
724 static void ide_atapi_cmd_read(IDEState
*s
, int lba
, int nb_sectors
)
726 #ifdef DEBUG_IDE_ATAPI
727 printf("read: LBA=%d nb_sectors=%d\n", lba
, nb_sectors
);
730 s
->packet_transfer_size
= nb_sectors
* 2048;
731 s
->elementary_transfer_size
= 0;
732 s
->io_buffer_index
= 2048;
734 s
->status
= READY_STAT
;
735 ide_atapi_cmd_reply_end(s
);
738 /* same toc as bochs. Return -1 if error or the toc length */
739 static int cdrom_read_toc(IDEState
*s
, uint8_t *buf
, int msf
, int start_track
)
744 if (start_track
> 1 && start_track
!= 0xaa)
749 if (start_track
<= 1) {
750 *q
++ = 0; /* reserved */
751 *q
++ = 0x14; /* ADR, control */
752 *q
++ = 1; /* track number */
753 *q
++ = 0; /* reserved */
755 *q
++ = 0; /* reserved */
756 *q
++ = 0; /* minute */
757 *q
++ = 2; /* second */
758 *q
++ = 0; /* frame */
766 *q
++ = 0; /* reserved */
767 *q
++ = 0x16; /* ADR, control */
768 *q
++ = 0xaa; /* track number */
769 *q
++ = 0; /* reserved */
770 nb_sectors
= s
->nb_sectors
>> 2;
772 *q
++ = 0; /* reserved */
773 *q
++ = ((nb_sectors
+ 150) / 75) / 60;
774 *q
++ = ((nb_sectors
+ 150) / 75) % 60;
775 *q
++ = (nb_sectors
+ 150) % 75;
777 cpu_to_ube32(q
, nb_sectors
);
781 cpu_to_ube16(buf
, len
- 2);
785 static void ide_atapi_cmd(IDEState
*s
)
787 const uint8_t *packet
;
791 packet
= s
->io_buffer
;
793 #ifdef DEBUG_IDE_ATAPI
796 printf("ATAPI limit=0x%x packet:", s
->lcyl
| (s
->hcyl
<< 8));
797 for(i
= 0; i
< ATAPI_PACKET_SIZE
; i
++) {
798 printf(" %02x", packet
[i
]);
803 switch(s
->io_buffer
[0]) {
804 case GPCMD_TEST_UNIT_READY
:
808 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
809 ASC_MEDIUM_NOT_PRESENT
);
812 case GPCMD_MODE_SENSE_10
:
815 max_len
= ube16_to_cpu(packet
+ 7);
816 action
= packet
[2] >> 6;
817 code
= packet
[2] & 0x3f;
819 case 0: /* current values */
821 case 0x01: /* error recovery */
822 cpu_to_ube16(&buf
[0], 16 + 6);
838 ide_atapi_cmd_reply(s
, 16, max_len
);
841 cpu_to_ube16(&buf
[0], 28 + 6);
856 buf
[14] = (1 << 0) | (1 << 3) | (1 << 5);
860 cpu_to_ube16(&buf
[16], 706);
863 cpu_to_ube16(&buf
[20], 512);
864 cpu_to_ube16(&buf
[22], 706);
869 ide_atapi_cmd_reply(s
, 28, max_len
);
875 case 1: /* changeable values */
877 case 2: /* default values */
880 case 3: /* saved values */
881 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
882 ASC_SAVING_PARAMETERS_NOT_SUPPORTED
);
887 case GPCMD_REQUEST_SENSE
:
890 buf
[0] = 0x70 | (1 << 7);
891 buf
[2] = s
->sense_key
;
894 ide_atapi_cmd_reply(s
, 18, max_len
);
896 case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL
:
898 s
->cdrom_locked
= packet
[4] & 1;
901 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
902 ASC_MEDIUM_NOT_PRESENT
);
911 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
912 ASC_MEDIUM_NOT_PRESENT
);
915 if (packet
[0] == GPCMD_READ_10
)
916 nb_sectors
= ube16_to_cpu(packet
+ 7);
918 nb_sectors
= ube32_to_cpu(packet
+ 6);
919 lba
= ube32_to_cpu(packet
+ 2);
920 if (nb_sectors
== 0) {
924 if (((int64_t)(lba
+ nb_sectors
) << 2) > s
->nb_sectors
) {
925 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
926 ASC_LOGICAL_BLOCK_OOR
);
929 ide_atapi_cmd_read(s
, lba
, nb_sectors
);
936 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
937 ASC_MEDIUM_NOT_PRESENT
);
940 lba
= ube32_to_cpu(packet
+ 2);
941 if (((int64_t)lba
<< 2) > s
->nb_sectors
) {
942 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
943 ASC_LOGICAL_BLOCK_OOR
);
949 case GPCMD_START_STOP_UNIT
:
952 start
= packet
[4] & 1;
953 eject
= (packet
[4] >> 1) & 1;
955 /* XXX: currently none implemented */
959 case GPCMD_MECHANISM_STATUS
:
961 max_len
= ube16_to_cpu(packet
+ 8);
962 cpu_to_ube16(buf
, 0);
968 cpu_to_ube16(buf
+ 6, 0);
969 ide_atapi_cmd_reply(s
, 8, max_len
);
972 case GPCMD_READ_TOC_PMA_ATIP
:
974 int format
, msf
, start_track
, len
;
977 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
978 ASC_MEDIUM_NOT_PRESENT
);
981 max_len
= ube16_to_cpu(packet
+ 7);
982 format
= packet
[9] >> 6;
983 msf
= (packet
[1] >> 1) & 1;
984 start_track
= packet
[6];
987 len
= cdrom_read_toc(s
, buf
, msf
, start_track
);
990 ide_atapi_cmd_reply(s
, len
, max_len
);
993 /* multi session : only a single session defined */
998 ide_atapi_cmd_reply(s
, 12, max_len
);
1005 case GPCMD_READ_CDVD_CAPACITY
:
1007 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
1008 ASC_MEDIUM_NOT_PRESENT
);
1011 /* NOTE: it is really the number of sectors minus 1 */
1012 cpu_to_ube32(buf
, (s
->nb_sectors
>> 2) - 1);
1013 cpu_to_ube32(buf
+ 4, 2048);
1014 ide_atapi_cmd_reply(s
, 8, 8);
1018 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
1019 ASC_INV_FIELD_IN_CMD_PACKET
);
1024 static void ide_ioport_write(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1026 IDEState
*ide_if
= get_ide_interface(addr
);
1027 IDEState
*s
= ide_if
->cur_drive
;
1031 printf("IDE: write addr=0x%x val=0x%02x\n", addr
, val
);
1056 unit
= (val
>> 4) & 1;
1058 ide_if
->cur_drive
= s
;
1064 #if defined(DEBUG_IDE)
1065 printf("ide: CMD=%02x\n", val
);
1069 if (s
->bs
&& !s
->is_cdrom
) {
1071 s
->status
= READY_STAT
;
1072 ide_transfer_start(s
, s
->io_buffer
, 512, ide_transfer_stop
);
1075 ide_set_signature(s
);
1077 ide_abort_command(s
);
1083 s
->status
= READY_STAT
;
1087 if (s
->nsector
> MAX_MULT_SECTORS
||
1089 (s
->nsector
& (s
->nsector
- 1)) != 0) {
1090 ide_abort_command(s
);
1092 s
->mult_sectors
= s
->nsector
;
1093 s
->status
= READY_STAT
;
1099 s
->req_nb_sectors
= 1;
1103 case WIN_WRITE_ONCE
:
1104 s
->status
= SEEK_STAT
;
1105 s
->req_nb_sectors
= 1;
1106 ide_transfer_start(s
, s
->io_buffer
, 512, ide_sector_write
);
1109 if (!s
->mult_sectors
)
1111 s
->req_nb_sectors
= s
->mult_sectors
;
1115 if (!s
->mult_sectors
)
1117 s
->status
= SEEK_STAT
;
1118 s
->req_nb_sectors
= s
->mult_sectors
;
1120 if (n
> s
->req_nb_sectors
)
1121 n
= s
->req_nb_sectors
;
1122 ide_transfer_start(s
, s
->io_buffer
, 512 * n
, ide_sector_write
);
1124 case WIN_READ_NATIVE_MAX
:
1125 ide_set_sector(s
, s
->nb_sectors
- 1);
1126 s
->status
= READY_STAT
;
1130 /* ATAPI commands */
1133 ide_atapi_identify(s
);
1134 s
->status
= READY_STAT
;
1135 ide_transfer_start(s
, s
->io_buffer
, 512, ide_transfer_stop
);
1137 ide_abort_command(s
);
1144 ide_set_signature(s
);
1145 s
->status
= READY_STAT
;
1151 /* DMA or overlapping commands not supported */
1152 if ((s
->feature
& 0x03) != 0)
1155 ide_transfer_start(s
, s
->io_buffer
, ATAPI_PACKET_SIZE
,
1160 ide_abort_command(s
);
1167 static uint32_t ide_ioport_read(CPUX86State
*env
, uint32_t addr1
)
1169 IDEState
*s
= get_ide_interface(addr1
)->cur_drive
;
1182 ret
= s
->nsector
& 0xff;
1199 pic_set_irq(s
->irq
, 0);
1203 printf("ide: read addr=0x%x val=%02x\n", addr1
, ret
);
1208 static uint32_t ide_status_read(CPUX86State
*env
, uint32_t addr
)
1210 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1214 printf("ide: read status addr=0x%x val=%02x\n", addr
, ret
);
1219 static void ide_cmd_write(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1221 IDEState
*ide_if
= get_ide_interface(addr
);
1226 printf("ide: write control addr=0x%x val=%02x\n", addr
, val
);
1228 /* common for both drives */
1229 if (!(ide_if
[0].cmd
& IDE_CMD_RESET
) &&
1230 (val
& IDE_CMD_RESET
)) {
1231 /* reset low to high */
1232 for(i
= 0;i
< 2; i
++) {
1234 s
->status
= BUSY_STAT
| SEEK_STAT
;
1237 } else if ((ide_if
[0].cmd
& IDE_CMD_RESET
) &&
1238 !(val
& IDE_CMD_RESET
)) {
1240 for(i
= 0;i
< 2; i
++) {
1242 s
->status
= READY_STAT
;
1243 ide_set_signature(s
);
1247 ide_if
[0].cmd
= val
;
1248 ide_if
[1].cmd
= val
;
1251 static void ide_data_writew(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1253 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1257 *(uint16_t *)p
= tswap16(val
);
1260 if (p
>= s
->data_end
)
1261 s
->end_transfer_func(s
);
1264 static uint32_t ide_data_readw(CPUX86State
*env
, uint32_t addr
)
1266 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1270 ret
= tswap16(*(uint16_t *)p
);
1273 if (p
>= s
->data_end
)
1274 s
->end_transfer_func(s
);
1278 static void ide_data_writel(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1280 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1284 *(uint32_t *)p
= tswap32(val
);
1287 if (p
>= s
->data_end
)
1288 s
->end_transfer_func(s
);
1291 static uint32_t ide_data_readl(CPUX86State
*env
, uint32_t addr
)
1293 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1298 ret
= tswap32(*(uint32_t *)p
);
1301 if (p
>= s
->data_end
)
1302 s
->end_transfer_func(s
);
1306 static void ide_reset(IDEState
*s
)
1308 s
->mult_sectors
= MAX_MULT_SECTORS
;
1311 s
->status
= READY_STAT
;
1312 ide_set_signature(s
);
1316 uint8_t boot_ind
; /* 0x80 - active */
1317 uint8_t head
; /* starting head */
1318 uint8_t sector
; /* starting sector */
1319 uint8_t cyl
; /* starting cylinder */
1320 uint8_t sys_ind
; /* What partition type */
1321 uint8_t end_head
; /* end head */
1322 uint8_t end_sector
; /* end sector */
1323 uint8_t end_cyl
; /* end cylinder */
1324 uint32_t start_sect
; /* starting sector counting from 0 */
1325 uint32_t nr_sects
; /* nr of sectors in partition */
1326 } __attribute__((packed
));
1328 /* try to guess the IDE geometry from the MSDOS partition table */
1329 static void ide_guess_geometry(IDEState
*s
)
1333 struct partition
*p
;
1336 if (s
->cylinders
!= 0)
1338 ret
= bdrv_read(s
->bs
, 0, buf
, 1);
1341 /* test msdos magic */
1342 if (buf
[510] != 0x55 || buf
[511] != 0xaa)
1344 for(i
= 0; i
< 4; i
++) {
1345 p
= ((struct partition
*)(buf
+ 0x1be)) + i
;
1346 nr_sects
= tswap32(p
->nr_sects
);
1347 if (nr_sects
&& p
->end_head
) {
1348 /* We make the assumption that the partition terminates on
1349 a cylinder boundary */
1350 s
->heads
= p
->end_head
+ 1;
1351 s
->sectors
= p
->end_sector
& 63;
1352 s
->cylinders
= s
->nb_sectors
/ (s
->heads
* s
->sectors
);
1354 printf("guessed partition: CHS=%d %d %d\n",
1355 s
->cylinders
, s
->heads
, s
->sectors
);
1364 int i
, cylinders
, iobase
, iobase2
;
1366 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
1367 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
1368 static const int ide_irq
[2] = { 14, 15 };
1370 for(i
= 0; i
< MAX_DISKS
; i
++) {
1372 s
->bs
= bs_table
[i
];
1374 bdrv_get_geometry(s
->bs
, &nb_sectors
);
1375 s
->nb_sectors
= nb_sectors
;
1376 ide_guess_geometry(s
);
1377 if (s
->cylinders
== 0) {
1378 /* if no geometry, use a LBA compatible one */
1379 cylinders
= nb_sectors
/ (16 * 63);
1380 if (cylinders
> 16383)
1382 else if (cylinders
< 2)
1384 s
->cylinders
= cylinders
;
1389 s
->irq
= ide_irq
[i
>> 1];
1392 for(i
= 0; i
< (MAX_DISKS
/ 2); i
++) {
1393 iobase
= ide_iobase
[i
];
1394 iobase2
= ide_iobase2
[i
];
1395 ide_table
[iobase
>> 3] = &ide_state
[2 * i
];
1397 ide_table
[iobase2
>> 3] = &ide_state
[2 * i
];
1398 register_ioport_write(iobase
, 8, ide_ioport_write
, 1);
1399 register_ioport_read(iobase
, 8, ide_ioport_read
, 1);
1400 register_ioport_read(iobase2
, 1, ide_status_read
, 1);
1401 register_ioport_write(iobase2
, 1, ide_cmd_write
, 1);
1404 register_ioport_write(iobase
, 2, ide_data_writew
, 2);
1405 register_ioport_read(iobase
, 2, ide_data_readw
, 2);
1406 register_ioport_write(iobase
, 4, ide_data_writel
, 4);
1407 register_ioport_read(iobase
, 4, ide_data_readl
, 4);
1411 void ide_set_geometry(int n
, int cyls
, int heads
, int secs
)
1413 ide_state
[n
].cylinders
= cyls
;
1414 ide_state
[n
].heads
= heads
;
1415 ide_state
[n
].sectors
= secs
;
1418 void ide_set_cdrom(int n
, int is_cdrom
)
1420 ide_state
[n
].is_cdrom
= is_cdrom
;