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 padstr8(uint8_t *buf
, int buf_size
, const char *src
)
377 for(i
= 0; i
< buf_size
; i
++) {
385 static void ide_identify(IDEState
*s
)
388 unsigned int oldsize
;
390 memset(s
->io_buffer
, 0, 512);
391 p
= (uint16_t *)s
->io_buffer
;
392 stw_raw(p
+ 0, 0x0040);
393 stw_raw(p
+ 1, s
->cylinders
);
394 stw_raw(p
+ 3, s
->heads
);
395 stw_raw(p
+ 4, 512 * s
->sectors
); /* sectors */
396 stw_raw(p
+ 5, 512); /* sector size */
397 stw_raw(p
+ 6, s
->sectors
);
398 padstr((uint8_t *)(p
+ 10), "QM00001", 20); /* serial number */
399 stw_raw(p
+ 20, 3); /* buffer type */
400 stw_raw(p
+ 21, 512); /* cache size in sectors */
401 stw_raw(p
+ 22, 4); /* ecc bytes */
402 padstr((uint8_t *)(p
+ 23), QEMU_VERSION
, 8); /* firmware version */
403 padstr((uint8_t *)(p
+ 27), "QEMU HARDDISK", 40); /* model */
404 #if MAX_MULT_SECTORS > 1
405 stw_raw(p
+ 47, MAX_MULT_SECTORS
);
407 stw_raw(p
+ 48, 1); /* dword I/O */
408 stw_raw(p
+ 49, 1 << 9); /* LBA supported, no DMA */
409 stw_raw(p
+ 51, 0x200); /* PIO transfer cycle */
410 stw_raw(p
+ 52, 0x200); /* DMA transfer cycle */
411 stw_raw(p
+ 54, s
->cylinders
);
412 stw_raw(p
+ 55, s
->heads
);
413 stw_raw(p
+ 56, s
->sectors
);
414 oldsize
= s
->cylinders
* s
->heads
* s
->sectors
;
415 stw_raw(p
+ 57, oldsize
);
416 stw_raw(p
+ 58, oldsize
>> 16);
418 stw_raw(p
+ 59, 0x100 | s
->mult_sectors
);
419 stw_raw(p
+ 60, s
->nb_sectors
);
420 stw_raw(p
+ 61, s
->nb_sectors
>> 16);
421 stw_raw(p
+ 80, (1 << 1) | (1 << 2));
422 stw_raw(p
+ 82, (1 << 14));
423 stw_raw(p
+ 83, (1 << 14));
424 stw_raw(p
+ 84, (1 << 14));
425 stw_raw(p
+ 85, (1 << 14));
427 stw_raw(p
+ 87, (1 << 14));
430 static void ide_atapi_identify(IDEState
*s
)
434 memset(s
->io_buffer
, 0, 512);
435 p
= (uint16_t *)s
->io_buffer
;
436 /* Removable CDROM, 50us response, 12 byte packets */
437 stw_raw(p
+ 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
438 stw_raw(p
+ 1, s
->cylinders
);
439 stw_raw(p
+ 3, s
->heads
);
440 stw_raw(p
+ 4, 512 * s
->sectors
); /* sectors */
441 stw_raw(p
+ 5, 512); /* sector size */
442 stw_raw(p
+ 6, s
->sectors
);
443 padstr((uint8_t *)(p
+ 10), "QM00001", 20); /* serial number */
444 stw_raw(p
+ 20, 3); /* buffer type */
445 stw_raw(p
+ 21, 512); /* cache size in sectors */
446 stw_raw(p
+ 22, 4); /* ecc bytes */
447 padstr((uint8_t *)(p
+ 23), QEMU_VERSION
, 8); /* firmware version */
448 padstr((uint8_t *)(p
+ 27), "QEMU CD-ROM", 40); /* model */
449 stw_raw(p
+ 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
450 stw_raw(p
+ 49, 1 << 9); /* LBA supported, no DMA */
451 stw_raw(p
+ 53, 3); /* words 64-70, 54-58 valid */
452 stw_raw(p
+ 63, 0x103); /* DMA modes XXX: may be incorrect */
453 stw_raw(p
+ 64, 1); /* PIO modes */
454 stw_raw(p
+ 65, 0xb4); /* minimum DMA multiword tx cycle time */
455 stw_raw(p
+ 66, 0xb4); /* recommended DMA multiword tx cycle time */
456 stw_raw(p
+ 67, 0x12c); /* minimum PIO cycle time without flow control */
457 stw_raw(p
+ 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
459 stw_raw(p
+ 71, 30); /* in ns */
460 stw_raw(p
+ 72, 30); /* in ns */
462 stw_raw(p
+ 80, 0x1e); /* support up to ATA/ATAPI-4 */
465 static void ide_set_signature(IDEState
*s
)
467 s
->select
&= 0xf0; /* clear head */
483 static inline void ide_abort_command(IDEState
*s
)
485 s
->status
= READY_STAT
| ERR_STAT
;
489 static inline void ide_set_irq(IDEState
*s
)
491 if (!(s
->cmd
& IDE_CMD_DISABLE_IRQ
)) {
492 pic_set_irq(s
->irq
, 1);
496 /* prepare data transfer and tell what to do after */
497 static void ide_transfer_start(IDEState
*s
, uint8_t *buf
, int size
,
498 EndTransferFunc
*end_transfer_func
)
500 s
->end_transfer_func
= end_transfer_func
;
502 s
->data_end
= buf
+ size
;
503 s
->status
|= DRQ_STAT
;
506 static void ide_transfer_stop(IDEState
*s
)
508 s
->end_transfer_func
= ide_transfer_stop
;
509 s
->data_ptr
= s
->io_buffer
;
510 s
->data_end
= s
->io_buffer
;
511 s
->status
&= ~DRQ_STAT
;
514 static int64_t ide_get_sector(IDEState
*s
)
517 if (s
->select
& 0x40) {
519 sector_num
= ((s
->select
& 0x0f) << 24) | (s
->hcyl
<< 16) |
520 (s
->lcyl
<< 8) | s
->sector
;
522 sector_num
= ((s
->hcyl
<< 8) | s
->lcyl
) * s
->heads
* s
->sectors
+
523 (s
->select
& 0x0f) * s
->sectors
+
529 static void ide_set_sector(IDEState
*s
, int64_t sector_num
)
532 if (s
->select
& 0x40) {
533 s
->select
= (s
->select
& 0xf0) | (sector_num
>> 24);
534 s
->hcyl
= (sector_num
>> 16);
535 s
->lcyl
= (sector_num
>> 8);
536 s
->sector
= (sector_num
);
538 cyl
= sector_num
/ (s
->heads
* s
->sectors
);
539 r
= sector_num
% (s
->heads
* s
->sectors
);
542 s
->select
= (s
->select
& 0xf0) | (r
/ s
->sectors
);
543 s
->sector
= (r
% s
->sectors
) + 1;
547 static void ide_sector_read(IDEState
*s
)
552 s
->status
= READY_STAT
| SEEK_STAT
;
553 sector_num
= ide_get_sector(s
);
556 /* no more sector to read from disk */
557 ide_transfer_stop(s
);
559 #if defined(DEBUG_IDE)
560 printf("read sector=%Ld\n", sector_num
);
562 if (n
> s
->req_nb_sectors
)
563 n
= s
->req_nb_sectors
;
564 ret
= bdrv_read(s
->bs
, sector_num
, s
->io_buffer
, n
);
565 ide_transfer_start(s
, s
->io_buffer
, 512 * n
, ide_sector_read
);
567 ide_set_sector(s
, sector_num
+ n
);
572 static void ide_sector_write(IDEState
*s
)
577 s
->status
= READY_STAT
| SEEK_STAT
;
578 sector_num
= ide_get_sector(s
);
579 #if defined(DEBUG_IDE)
580 printf("write sector=%Ld\n", sector_num
);
583 if (n
> s
->req_nb_sectors
)
584 n
= s
->req_nb_sectors
;
585 ret
= bdrv_write(s
->bs
, sector_num
, s
->io_buffer
, n
);
587 if (s
->nsector
== 0) {
588 /* no more sector to write */
589 ide_transfer_stop(s
);
592 if (n1
> s
->req_nb_sectors
)
593 n1
= s
->req_nb_sectors
;
594 ide_transfer_start(s
, s
->io_buffer
, 512 * n1
, ide_sector_write
);
596 ide_set_sector(s
, sector_num
+ n
);
600 static void ide_atapi_cmd_ok(IDEState
*s
)
603 s
->status
= READY_STAT
;
604 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
608 static void ide_atapi_cmd_error(IDEState
*s
, int sense_key
, int asc
)
610 #ifdef DEBUG_IDE_ATAPI
611 printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key
, asc
);
613 s
->error
= sense_key
<< 4;
614 s
->status
= READY_STAT
| ERR_STAT
;
615 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
616 s
->sense_key
= sense_key
;
621 static inline void cpu_to_ube16(uint8_t *buf
, int val
)
627 static inline void cpu_to_ube32(uint8_t *buf
, unsigned int val
)
635 static inline int ube16_to_cpu(const uint8_t *buf
)
637 return (buf
[0] << 8) | buf
[1];
640 static inline int ube32_to_cpu(const uint8_t *buf
)
642 return (buf
[0] << 24) | (buf
[1] << 16) | (buf
[2] << 8) | buf
[3];
645 /* The whole ATAPI transfer logic is handled in this function */
646 static void ide_atapi_cmd_reply_end(IDEState
*s
)
648 int byte_count_limit
, size
;
649 #ifdef DEBUG_IDE_ATAPI
650 printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
651 s
->packet_transfer_size
,
652 s
->elementary_transfer_size
,
655 if (s
->packet_transfer_size
<= 0) {
656 /* end of transfer */
657 ide_transfer_stop(s
);
658 s
->status
= READY_STAT
;
659 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
| ATAPI_INT_REASON_CD
;
661 #ifdef DEBUG_IDE_ATAPI
662 printf("status=0x%x\n", s
->status
);
665 /* see if a new sector must be read */
666 if (s
->lba
!= -1 && s
->io_buffer_index
>= 2048) {
667 bdrv_read(s
->bs
, (int64_t)s
->lba
<< 2, s
->io_buffer
, 4);
669 s
->io_buffer_index
= 0;
671 if (s
->elementary_transfer_size
> 0) {
672 /* there are some data left to transmit in this elementary
674 size
= 2048 - s
->io_buffer_index
;
675 if (size
> s
->elementary_transfer_size
)
676 size
= s
->elementary_transfer_size
;
677 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
,
678 size
, ide_atapi_cmd_reply_end
);
679 s
->packet_transfer_size
-= size
;
680 s
->elementary_transfer_size
-= size
;
681 s
->io_buffer_index
+= size
;
683 /* a new transfer is needed */
684 s
->nsector
= (s
->nsector
& ~7) | ATAPI_INT_REASON_IO
;
685 byte_count_limit
= s
->lcyl
| (s
->hcyl
<< 8);
686 #ifdef DEBUG_IDE_ATAPI
687 printf("byte_count_limit=%d\n", byte_count_limit
);
689 if (byte_count_limit
== 0xffff)
691 size
= s
->packet_transfer_size
;
692 if (size
> byte_count_limit
) {
693 /* byte count limit must be even if this case */
694 if (byte_count_limit
& 1)
696 size
= byte_count_limit
;
701 s
->elementary_transfer_size
= size
;
702 /* we cannot transmit more than one sector at a time */
704 if (size
> (2048 - s
->io_buffer_index
))
705 size
= (2048 - s
->io_buffer_index
);
707 ide_transfer_start(s
, s
->io_buffer
+ s
->io_buffer_index
,
708 size
, ide_atapi_cmd_reply_end
);
709 s
->packet_transfer_size
-= size
;
710 s
->elementary_transfer_size
-= size
;
711 s
->io_buffer_index
+= size
;
713 #ifdef DEBUG_IDE_ATAPI
714 printf("status=0x%x\n", s
->status
);
720 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
721 static void ide_atapi_cmd_reply(IDEState
*s
, int size
, int max_size
)
725 s
->lba
= -1; /* no sector read */
726 s
->packet_transfer_size
= size
;
727 s
->elementary_transfer_size
= 0;
728 s
->io_buffer_index
= 0;
730 s
->status
= READY_STAT
;
731 ide_atapi_cmd_reply_end(s
);
734 /* start a CD-CDROM read command */
735 static void ide_atapi_cmd_read(IDEState
*s
, int lba
, int nb_sectors
)
737 #ifdef DEBUG_IDE_ATAPI
738 printf("read: LBA=%d nb_sectors=%d\n", lba
, nb_sectors
);
741 s
->packet_transfer_size
= nb_sectors
* 2048;
742 s
->elementary_transfer_size
= 0;
743 s
->io_buffer_index
= 2048;
745 s
->status
= READY_STAT
;
746 ide_atapi_cmd_reply_end(s
);
749 /* same toc as bochs. Return -1 if error or the toc length */
750 static int cdrom_read_toc(IDEState
*s
, uint8_t *buf
, int msf
, int start_track
)
755 if (start_track
> 1 && start_track
!= 0xaa)
760 if (start_track
<= 1) {
761 *q
++ = 0; /* reserved */
762 *q
++ = 0x14; /* ADR, control */
763 *q
++ = 1; /* track number */
764 *q
++ = 0; /* reserved */
766 *q
++ = 0; /* reserved */
767 *q
++ = 0; /* minute */
768 *q
++ = 2; /* second */
769 *q
++ = 0; /* frame */
777 *q
++ = 0; /* reserved */
778 *q
++ = 0x16; /* ADR, control */
779 *q
++ = 0xaa; /* track number */
780 *q
++ = 0; /* reserved */
781 nb_sectors
= s
->nb_sectors
>> 2;
783 *q
++ = 0; /* reserved */
784 *q
++ = ((nb_sectors
+ 150) / 75) / 60;
785 *q
++ = ((nb_sectors
+ 150) / 75) % 60;
786 *q
++ = (nb_sectors
+ 150) % 75;
788 cpu_to_ube32(q
, nb_sectors
);
792 cpu_to_ube16(buf
, len
- 2);
796 static void ide_atapi_cmd(IDEState
*s
)
798 const uint8_t *packet
;
802 packet
= s
->io_buffer
;
804 #ifdef DEBUG_IDE_ATAPI
807 printf("ATAPI limit=0x%x packet:", s
->lcyl
| (s
->hcyl
<< 8));
808 for(i
= 0; i
< ATAPI_PACKET_SIZE
; i
++) {
809 printf(" %02x", packet
[i
]);
814 switch(s
->io_buffer
[0]) {
815 case GPCMD_TEST_UNIT_READY
:
819 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
820 ASC_MEDIUM_NOT_PRESENT
);
823 case GPCMD_MODE_SENSE_10
:
826 max_len
= ube16_to_cpu(packet
+ 7);
827 action
= packet
[2] >> 6;
828 code
= packet
[2] & 0x3f;
830 case 0: /* current values */
832 case 0x01: /* error recovery */
833 cpu_to_ube16(&buf
[0], 16 + 6);
849 ide_atapi_cmd_reply(s
, 16, max_len
);
852 cpu_to_ube16(&buf
[0], 28 + 6);
867 buf
[14] = (1 << 0) | (1 << 3) | (1 << 5);
871 cpu_to_ube16(&buf
[16], 706);
874 cpu_to_ube16(&buf
[20], 512);
875 cpu_to_ube16(&buf
[22], 706);
880 ide_atapi_cmd_reply(s
, 28, max_len
);
886 case 1: /* changeable values */
888 case 2: /* default values */
891 case 3: /* saved values */
892 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
893 ASC_SAVING_PARAMETERS_NOT_SUPPORTED
);
898 case GPCMD_REQUEST_SENSE
:
901 buf
[0] = 0x70 | (1 << 7);
902 buf
[2] = s
->sense_key
;
905 ide_atapi_cmd_reply(s
, 18, max_len
);
907 case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL
:
909 s
->cdrom_locked
= packet
[4] & 1;
912 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
913 ASC_MEDIUM_NOT_PRESENT
);
922 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
923 ASC_MEDIUM_NOT_PRESENT
);
926 if (packet
[0] == GPCMD_READ_10
)
927 nb_sectors
= ube16_to_cpu(packet
+ 7);
929 nb_sectors
= ube32_to_cpu(packet
+ 6);
930 lba
= ube32_to_cpu(packet
+ 2);
931 if (nb_sectors
== 0) {
935 if (((int64_t)(lba
+ nb_sectors
) << 2) > s
->nb_sectors
) {
936 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
937 ASC_LOGICAL_BLOCK_OOR
);
940 ide_atapi_cmd_read(s
, lba
, nb_sectors
);
947 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
948 ASC_MEDIUM_NOT_PRESENT
);
951 lba
= ube32_to_cpu(packet
+ 2);
952 if (((int64_t)lba
<< 2) > s
->nb_sectors
) {
953 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
954 ASC_LOGICAL_BLOCK_OOR
);
960 case GPCMD_START_STOP_UNIT
:
963 start
= packet
[4] & 1;
964 eject
= (packet
[4] >> 1) & 1;
966 /* XXX: currently none implemented */
970 case GPCMD_MECHANISM_STATUS
:
972 max_len
= ube16_to_cpu(packet
+ 8);
973 cpu_to_ube16(buf
, 0);
979 cpu_to_ube16(buf
+ 6, 0);
980 ide_atapi_cmd_reply(s
, 8, max_len
);
983 case GPCMD_READ_TOC_PMA_ATIP
:
985 int format
, msf
, start_track
, len
;
988 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
989 ASC_MEDIUM_NOT_PRESENT
);
992 max_len
= ube16_to_cpu(packet
+ 7);
993 format
= packet
[9] >> 6;
994 msf
= (packet
[1] >> 1) & 1;
995 start_track
= packet
[6];
998 len
= cdrom_read_toc(s
, buf
, msf
, start_track
);
1001 ide_atapi_cmd_reply(s
, len
, max_len
);
1004 /* multi session : only a single session defined */
1009 ide_atapi_cmd_reply(s
, 12, max_len
);
1016 case GPCMD_READ_CDVD_CAPACITY
:
1018 ide_atapi_cmd_error(s
, SENSE_NOT_READY
,
1019 ASC_MEDIUM_NOT_PRESENT
);
1022 /* NOTE: it is really the number of sectors minus 1 */
1023 cpu_to_ube32(buf
, (s
->nb_sectors
>> 2) - 1);
1024 cpu_to_ube32(buf
+ 4, 2048);
1025 ide_atapi_cmd_reply(s
, 8, 8);
1028 max_len
= packet
[4];
1029 buf
[0] = 0x05; /* CD-ROM */
1030 buf
[1] = 0x80; /* removable */
1031 buf
[2] = 0x00; /* ISO */
1032 buf
[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */
1033 buf
[4] = 31; /* additionnal length */
1034 buf
[5] = 0; /* reserved */
1035 buf
[6] = 0; /* reserved */
1036 buf
[7] = 0; /* reserved */
1037 padstr8(buf
+ 8, 8, "QEMU");
1038 padstr8(buf
+ 16, 16, "QEMU CD-ROM");
1039 padstr8(buf
+ 32, 4, QEMU_VERSION
);
1040 ide_atapi_cmd_reply(s
, 36, max_len
);
1044 ide_atapi_cmd_error(s
, SENSE_ILLEGAL_REQUEST
,
1045 ASC_INV_FIELD_IN_CMD_PACKET
);
1050 static void ide_ioport_write(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1052 IDEState
*ide_if
= get_ide_interface(addr
);
1053 IDEState
*s
= ide_if
->cur_drive
;
1057 printf("IDE: write addr=0x%x val=0x%02x\n", addr
, val
);
1082 unit
= (val
>> 4) & 1;
1084 ide_if
->cur_drive
= s
;
1090 #if defined(DEBUG_IDE)
1091 printf("ide: CMD=%02x\n", val
);
1095 if (s
->bs
&& !s
->is_cdrom
) {
1097 s
->status
= READY_STAT
;
1098 ide_transfer_start(s
, s
->io_buffer
, 512, ide_transfer_stop
);
1101 ide_set_signature(s
);
1103 ide_abort_command(s
);
1109 s
->status
= READY_STAT
;
1113 if (s
->nsector
> MAX_MULT_SECTORS
||
1115 (s
->nsector
& (s
->nsector
- 1)) != 0) {
1116 ide_abort_command(s
);
1118 s
->mult_sectors
= s
->nsector
;
1119 s
->status
= READY_STAT
;
1125 s
->req_nb_sectors
= 1;
1129 case WIN_WRITE_ONCE
:
1130 s
->status
= SEEK_STAT
;
1131 s
->req_nb_sectors
= 1;
1132 ide_transfer_start(s
, s
->io_buffer
, 512, ide_sector_write
);
1135 if (!s
->mult_sectors
)
1137 s
->req_nb_sectors
= s
->mult_sectors
;
1141 if (!s
->mult_sectors
)
1143 s
->status
= SEEK_STAT
;
1144 s
->req_nb_sectors
= s
->mult_sectors
;
1146 if (n
> s
->req_nb_sectors
)
1147 n
= s
->req_nb_sectors
;
1148 ide_transfer_start(s
, s
->io_buffer
, 512 * n
, ide_sector_write
);
1150 case WIN_READ_NATIVE_MAX
:
1151 ide_set_sector(s
, s
->nb_sectors
- 1);
1152 s
->status
= READY_STAT
;
1156 /* ATAPI commands */
1159 ide_atapi_identify(s
);
1160 s
->status
= READY_STAT
;
1161 ide_transfer_start(s
, s
->io_buffer
, 512, ide_transfer_stop
);
1163 ide_abort_command(s
);
1170 ide_set_signature(s
);
1171 s
->status
= READY_STAT
;
1177 /* DMA or overlapping commands not supported */
1178 if ((s
->feature
& 0x03) != 0)
1181 ide_transfer_start(s
, s
->io_buffer
, ATAPI_PACKET_SIZE
,
1186 ide_abort_command(s
);
1193 static uint32_t ide_ioport_read(CPUX86State
*env
, uint32_t addr1
)
1195 IDEState
*s
= get_ide_interface(addr1
)->cur_drive
;
1208 ret
= s
->nsector
& 0xff;
1225 pic_set_irq(s
->irq
, 0);
1229 printf("ide: read addr=0x%x val=%02x\n", addr1
, ret
);
1234 static uint32_t ide_status_read(CPUX86State
*env
, uint32_t addr
)
1236 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1240 printf("ide: read status addr=0x%x val=%02x\n", addr
, ret
);
1245 static void ide_cmd_write(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1247 IDEState
*ide_if
= get_ide_interface(addr
);
1252 printf("ide: write control addr=0x%x val=%02x\n", addr
, val
);
1254 /* common for both drives */
1255 if (!(ide_if
[0].cmd
& IDE_CMD_RESET
) &&
1256 (val
& IDE_CMD_RESET
)) {
1257 /* reset low to high */
1258 for(i
= 0;i
< 2; i
++) {
1260 s
->status
= BUSY_STAT
| SEEK_STAT
;
1263 } else if ((ide_if
[0].cmd
& IDE_CMD_RESET
) &&
1264 !(val
& IDE_CMD_RESET
)) {
1266 for(i
= 0;i
< 2; i
++) {
1268 s
->status
= READY_STAT
;
1269 ide_set_signature(s
);
1273 ide_if
[0].cmd
= val
;
1274 ide_if
[1].cmd
= val
;
1277 static void ide_data_writew(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1279 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1283 *(uint16_t *)p
= tswap16(val
);
1286 if (p
>= s
->data_end
)
1287 s
->end_transfer_func(s
);
1290 static uint32_t ide_data_readw(CPUX86State
*env
, uint32_t addr
)
1292 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1296 ret
= tswap16(*(uint16_t *)p
);
1299 if (p
>= s
->data_end
)
1300 s
->end_transfer_func(s
);
1304 static void ide_data_writel(CPUX86State
*env
, uint32_t addr
, uint32_t val
)
1306 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1310 *(uint32_t *)p
= tswap32(val
);
1313 if (p
>= s
->data_end
)
1314 s
->end_transfer_func(s
);
1317 static uint32_t ide_data_readl(CPUX86State
*env
, uint32_t addr
)
1319 IDEState
*s
= get_ide_interface(addr
)->cur_drive
;
1324 ret
= tswap32(*(uint32_t *)p
);
1327 if (p
>= s
->data_end
)
1328 s
->end_transfer_func(s
);
1332 static void ide_reset(IDEState
*s
)
1334 s
->mult_sectors
= MAX_MULT_SECTORS
;
1337 s
->status
= READY_STAT
;
1338 ide_set_signature(s
);
1342 uint8_t boot_ind
; /* 0x80 - active */
1343 uint8_t head
; /* starting head */
1344 uint8_t sector
; /* starting sector */
1345 uint8_t cyl
; /* starting cylinder */
1346 uint8_t sys_ind
; /* What partition type */
1347 uint8_t end_head
; /* end head */
1348 uint8_t end_sector
; /* end sector */
1349 uint8_t end_cyl
; /* end cylinder */
1350 uint32_t start_sect
; /* starting sector counting from 0 */
1351 uint32_t nr_sects
; /* nr of sectors in partition */
1352 } __attribute__((packed
));
1354 /* try to guess the IDE geometry from the MSDOS partition table */
1355 static void ide_guess_geometry(IDEState
*s
)
1359 struct partition
*p
;
1362 if (s
->cylinders
!= 0)
1364 ret
= bdrv_read(s
->bs
, 0, buf
, 1);
1367 /* test msdos magic */
1368 if (buf
[510] != 0x55 || buf
[511] != 0xaa)
1370 for(i
= 0; i
< 4; i
++) {
1371 p
= ((struct partition
*)(buf
+ 0x1be)) + i
;
1372 nr_sects
= tswap32(p
->nr_sects
);
1373 if (nr_sects
&& p
->end_head
) {
1374 /* We make the assumption that the partition terminates on
1375 a cylinder boundary */
1376 s
->heads
= p
->end_head
+ 1;
1377 s
->sectors
= p
->end_sector
& 63;
1378 s
->cylinders
= s
->nb_sectors
/ (s
->heads
* s
->sectors
);
1380 printf("guessed partition: CHS=%d %d %d\n",
1381 s
->cylinders
, s
->heads
, s
->sectors
);
1390 int i
, cylinders
, iobase
, iobase2
;
1392 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
1393 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
1394 static const int ide_irq
[2] = { 14, 15 };
1396 for(i
= 0; i
< MAX_DISKS
; i
++) {
1398 s
->bs
= bs_table
[i
];
1400 bdrv_get_geometry(s
->bs
, &nb_sectors
);
1401 s
->nb_sectors
= nb_sectors
;
1402 ide_guess_geometry(s
);
1403 if (s
->cylinders
== 0) {
1404 /* if no geometry, use a LBA compatible one */
1405 cylinders
= nb_sectors
/ (16 * 63);
1406 if (cylinders
> 16383)
1408 else if (cylinders
< 2)
1410 s
->cylinders
= cylinders
;
1415 s
->irq
= ide_irq
[i
>> 1];
1418 for(i
= 0; i
< (MAX_DISKS
/ 2); i
++) {
1419 iobase
= ide_iobase
[i
];
1420 iobase2
= ide_iobase2
[i
];
1421 ide_table
[iobase
>> 3] = &ide_state
[2 * i
];
1423 ide_table
[iobase2
>> 3] = &ide_state
[2 * i
];
1424 register_ioport_write(iobase
, 8, ide_ioport_write
, 1);
1425 register_ioport_read(iobase
, 8, ide_ioport_read
, 1);
1426 register_ioport_read(iobase2
, 1, ide_status_read
, 1);
1427 register_ioport_write(iobase2
, 1, ide_cmd_write
, 1);
1430 register_ioport_write(iobase
, 2, ide_data_writew
, 2);
1431 register_ioport_read(iobase
, 2, ide_data_readw
, 2);
1432 register_ioport_write(iobase
, 4, ide_data_writel
, 4);
1433 register_ioport_read(iobase
, 4, ide_data_readl
, 4);
1437 void ide_set_geometry(int n
, int cyls
, int heads
, int secs
)
1439 ide_state
[n
].cylinders
= cyls
;
1440 ide_state
[n
].heads
= heads
;
1441 ide_state
[n
].sectors
= secs
;
1444 void ide_set_cdrom(int n
, int is_cdrom
)
1446 ide_state
[n
].is_cdrom
= is_cdrom
;