summaryrefslogtreecommitdiffstats
path: root/hw/ide/internal.h
blob: 5c19f794378bf589c7027ebdcee4df2fa5cf3253 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
#ifndef HW_IDE_INTERNAL_H
#define HW_IDE_INTERNAL_H

/*
 * QEMU IDE Emulation -- internal header file
 * only files in hw/ide/ are supposed to include this file.
 * non-internal declarations are in hw/ide.h
 */
#include <hw/ide.h>
#include <hw/isa/isa.h>
#include "sysemu/dma.h"
#include "sysemu/sysemu.h"
#include "hw/block/block.h"
#include "block/scsi.h"

/* debug IDE devices */
//#define DEBUG_IDE
//#define DEBUG_IDE_ATAPI
//#define DEBUG_AIO
#define USE_DMA_CDROM

typedef struct IDEBus IDEBus;
typedef struct IDEDevice IDEDevice;
typedef struct IDEState IDEState;
typedef struct IDEDMA IDEDMA;
typedef struct IDEDMAOps IDEDMAOps;

#define TYPE_IDE_BUS "IDE"
#define IDE_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)

/* Bits of HD_STATUS */
#define ERR_STAT		0x01
#define INDEX_STAT		0x02
#define ECC_STAT		0x04	/* Corrected error */
#define DRQ_STAT		0x08
#define SEEK_STAT		0x10
#define SRV_STAT		0x10
#define WRERR_STAT		0x20
#define READY_STAT		0x40
#define BUSY_STAT		0x80

/* Bits for HD_ERROR */
#define MARK_ERR		0x01	/* Bad address mark */
#define TRK0_ERR		0x02	/* couldn't find track 0 */
#define ABRT_ERR		0x04	/* Command aborted */
#define MCR_ERR			0x08	/* media change request */
#define ID_ERR			0x10	/* ID field not found */
#define MC_ERR			0x20	/* media changed */
#define ECC_ERR			0x40	/* Uncorrectable ECC error */
#define BBD_ERR			0x80	/* pre-EIDE meaning:  block marked bad */
#define ICRC_ERR		0x80	/* new meaning:  CRC error during transfer */

/* Bits of HD_NSECTOR */
#define CD			0x01
#define IO			0x02
#define REL			0x04
#define TAG_MASK		0xf8

#define IDE_CMD_RESET           0x04
#define IDE_CMD_DISABLE_IRQ     0x02

/* ACS-2 T13/2015-D Table B.2 Command codes */
#define WIN_NOP				0x00
/* reserved                             0x01..0x02 */
#define CFA_REQ_EXT_ERROR_CODE		0x03 /* CFA Request Extended Error Code */
/* reserved                             0x04..0x05 */
#define WIN_DSM                         0x06
/* reserved                             0x07 */
#define WIN_DEVICE_RESET		0x08
/* reserved                             0x09..0x0a */
/* REQUEST SENSE DATA EXT               0x0B */
/* reserved                             0x0C..0x0F */
#define WIN_RECAL                       0x10 /* obsolete since ATA4 */
/* obsolete since ATA3, retired in ATA4 0x11..0x1F */
#define WIN_READ			0x20 /* 28-Bit */
#define WIN_READ_ONCE                   0x21 /* 28-Bit w/o retries, obsolete since ATA5 */
/* obsolete since ATA4                  0x22..0x23 */
#define WIN_READ_EXT			0x24 /* 48-Bit */
#define WIN_READDMA_EXT			0x25 /* 48-Bit */
#define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit, obsolete since ACS2 */
#define WIN_READ_NATIVE_MAX_EXT		0x27 /* 48-Bit */
/* reserved                             0x28 */
#define WIN_MULTREAD_EXT		0x29 /* 48-Bit */
/* READ STREAM DMA EXT                  0x2A */
/* READ STREAM EXT                      0x2B */
/* reserved                             0x2C..0x2E */
/* READ LOG EXT                         0x2F */
#define WIN_WRITE			0x30 /* 28-Bit */
#define WIN_WRITE_ONCE                  0x31 /* 28-Bit w/o retries, obsolete since ATA5 */
/* obsolete since ATA4                  0x32..0x33 */
#define WIN_WRITE_EXT			0x34 /* 48-Bit */
#define WIN_WRITEDMA_EXT		0x35 /* 48-Bit */
#define WIN_WRITEDMA_QUEUED_EXT		0x36 /* 48-Bit */
#define WIN_SET_MAX_EXT                 0x37 /* 48-Bit, obsolete since ACS2 */
#define WIN_SET_MAX_EXT			0x37 /* 48-Bit */
#define CFA_WRITE_SECT_WO_ERASE		0x38 /* CFA Write Sectors without erase */
#define WIN_MULTWRITE_EXT		0x39 /* 48-Bit */
/* WRITE STREAM DMA EXT                 0x3A */
/* WRITE STREAM EXT                     0x3B */
#define WIN_WRITE_VERIFY                0x3C /* 28-Bit, obsolete since ATA4 */
/* WRITE DMA FUA EXT                    0x3D */
/* obsolete since ACS2                  0x3E */
/* WRITE LOG EXT                        0x3F */
#define WIN_VERIFY			0x40 /* 28-Bit - Read Verify Sectors */
#define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - w/o retries, obsolete since ATA5 */
#define WIN_VERIFY_EXT			0x42 /* 48-Bit */
/* reserved                             0x43..0x44 */
/* WRITE UNCORRECTABLE EXT              0x45 */
/* reserved                             0x46 */
/* READ LOG DMA EXT                     0x47 */
/* reserved                             0x48..0x4F */
/* obsolete since ATA4                  0x50 */
/* CONFIGURE STREAM                     0x51 */
/* reserved                             0x52..0x56 */
/* WRITE LOG DMA EXT                    0x57 */
/* reserved                             0x58..0x5A */
/* TRUSTED NON DATA                     0x5B */
/* TRUSTED RECEIVE                      0x5C */
/* TRUSTED RECEIVE DMA                  0x5D */
/* TRUSTED SEND                         0x5E */
/* TRUSTED SEND DMA                     0x5F */
/* READ FPDMA QUEUED                    0x60 */
/* WRITE FPDMA QUEUED                   0x61 */
/* reserved                             0x62->0x6F */
#define WIN_SEEK                        0x70 /* obsolete since ATA7 */
/* reserved                             0x71-0x7F */
/* vendor specific                      0x80-0x86 */
#define CFA_TRANSLATE_SECTOR		0x87 /* CFA Translate Sector */
/* vendor specific                      0x88-0x8F */
#define WIN_DIAGNOSE			0x90
#define WIN_SPECIFY                     0x91 /* set drive geometry translation, obsolete since ATA6 */
#define WIN_DOWNLOAD_MICROCODE		0x92
/* DOWNLOAD MICROCODE DMA               0x93 */
#define WIN_STANDBYNOW2                 0x94 /* retired in ATA4 */
#define WIN_IDLEIMMEDIATE2              0x95 /* force drive to become "ready", retired in ATA4 */
#define WIN_STANDBY2                    0x96 /* retired in ATA4 */
#define WIN_SETIDLE2                    0x97 /* retired in ATA4 */
#define WIN_CHECKPOWERMODE2             0x98 /* retired in ATA4 */
#define WIN_SLEEPNOW2                   0x99 /* retired in ATA4 */
/* vendor specific                      0x9A */
/* reserved                             0x9B..0x9F */
#define WIN_PACKETCMD			0xA0 /* Send a packet command. */
#define WIN_PIDENTIFY			0xA1 /* identify ATAPI device	*/
#define WIN_QUEUED_SERVICE              0xA2 /* obsolete since ACS2 */
/* reserved                             0xA3..0xAF */
#define WIN_SMART			0xB0 /* self-monitoring and reporting */
/* Device Configuration Overlay         0xB1 */
/* reserved                             0xB2..0xB3 */
/* Sanitize Device                      0xB4 */
/* reserved                             0xB5 */
/* NV Cache                             0xB6 */
/* reserved for CFA                     0xB7..0xBB */
#define CFA_ACCESS_METADATA_STORAGE	0xB8
/* reserved                             0xBC..0xBF */
#define CFA_ERASE_SECTORS       	0xC0 /* microdrives implement as NOP */
/* vendor specific                      0xC1..0xC3 */
#define WIN_MULTREAD			0xC4 /* read sectors using multiple mode*/
#define WIN_MULTWRITE			0xC5 /* write sectors using multiple mode */
#define WIN_SETMULT			0xC6 /* enable/disable multiple mode */
#define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers, obsolete since ACS2 */
#define WIN_READDMA			0xC8 /* read sectors using DMA transfers */
#define WIN_READDMA_ONCE                0xC9 /* 28-Bit - w/o retries, obsolete since ATA5 */
#define WIN_WRITEDMA			0xCA /* write sectors using DMA transfers */
#define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - w/o retries, obsolete since ATA5 */
#define WIN_WRITEDMA_QUEUED		0xCC /* write sectors using Queued DMA transfers, obsolete since ACS2 */
#define CFA_WRITE_MULTI_WO_ERASE	0xCD /* CFA Write multiple without erase */
/* WRITE MULTIPLE FUA EXT               0xCE */
/* reserved                             0xCF..0xDO */
/* CHECK MEDIA CARD TYPE                0xD1 */
/* reserved for media card pass through 0xD2..0xD4 */
/* reserved                             0xD5..0xD9 */
#define WIN_GETMEDIASTATUS              0xDA /* obsolete since ATA8 */
/* obsolete since ATA3, retired in ATA4 0xDB..0xDD */
#define WIN_DOORLOCK                    0xDE /* lock door on removable drives, obsolete since ATA8 */
#define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives, obsolete since ATA8 */
#define WIN_STANDBYNOW1			0xE0
#define WIN_IDLEIMMEDIATE		0xE1 /* force drive to become "ready" */
#define WIN_STANDBY             	0xE2 /* Set device in Standby Mode */
#define WIN_SETIDLE1			0xE3
#define WIN_READ_BUFFER			0xE4 /* force read only 1 sector */
#define WIN_CHECKPOWERMODE1		0xE5
#define WIN_SLEEPNOW1			0xE6
#define WIN_FLUSH_CACHE			0xE7
#define WIN_WRITE_BUFFER		0xE8 /* force write only 1 sector */
/* READ BUFFER DMA                      0xE9 */
#define WIN_FLUSH_CACHE_EXT		0xEA /* 48-Bit */
/* WRITE BUFFER DMA                     0xEB */
#define WIN_IDENTIFY			0xEC /* ask drive to identify itself	*/
#define WIN_MEDIAEJECT                  0xED /* obsolete since ATA8 */
/* obsolete since ATA4                  0xEE */
#define WIN_SETFEATURES			0xEF /* set special drive features */
#define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature, vendor specific */
#define WIN_SECURITY_SET_PASS		0xF1
#define WIN_SECURITY_UNLOCK		0xF2
#define WIN_SECURITY_ERASE_PREPARE	0xF3
#define WIN_SECURITY_ERASE_UNIT		0xF4
#define WIN_SECURITY_FREEZE_LOCK	0xF5
#define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP; not specified in T13! */
#define WIN_SECURITY_DISABLE		0xF6
/* vendor specific                      0xF7 */
#define WIN_READ_NATIVE_MAX		0xF8 /* return the native maximum address */
#define WIN_SET_MAX			0xF9
/* vendor specific                      0xFA..0xFF */

/* set to 1 set disable mult support */
#define MAX_MULT_SECTORS 16

#define IDE_DMA_BUF_SECTORS 256

/* feature values for Data Set Management */
#define DSM_TRIM                        0x01

#if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
#error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
#endif

/* ATAPI defines */

#define ATAPI_PACKET_SIZE 12

/* The generic packet command opcodes for CD/DVD Logical Units,
 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
#define GPCMD_BLANK			    0xa1
#define GPCMD_CLOSE_TRACK		    0x5b
#define GPCMD_FLUSH_CACHE		    0x35
#define GPCMD_FORMAT_UNIT		    0x04
#define GPCMD_GET_CONFIGURATION		    0x46
#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
#define GPCMD_GET_PERFORMANCE		    0xac
#define GPCMD_INQUIRY			    0x12
#define GPCMD_LOAD_UNLOAD		    0xa6
#define GPCMD_MECHANISM_STATUS		    0xbd
#define GPCMD_MODE_SELECT_10		    0x55
#define GPCMD_MODE_SENSE_10		    0x5a
#define GPCMD_PAUSE_RESUME		    0x4b
#define GPCMD_PLAY_AUDIO_10		    0x45
#define GPCMD_PLAY_AUDIO_MSF		    0x47
#define GPCMD_PLAY_AUDIO_TI		    0x48
#define GPCMD_PLAY_CD			    0xbc
#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
#define GPCMD_READ_10			    0x28
#define GPCMD_READ_12			    0xa8
#define GPCMD_READ_CDVD_CAPACITY	    0x25
#define GPCMD_READ_CD			    0xbe
#define GPCMD_READ_CD_MSF		    0xb9
#define GPCMD_READ_DISC_INFO		    0x51
#define GPCMD_READ_DVD_STRUCTURE	    0xad
#define GPCMD_READ_FORMAT_CAPACITIES	    0x23
#define GPCMD_READ_HEADER		    0x44
#define GPCMD_READ_TRACK_RZONE_INFO	    0x52
#define GPCMD_READ_SUBCHANNEL		    0x42
#define GPCMD_READ_TOC_PMA_ATIP		    0x43
#define GPCMD_REPAIR_RZONE_TRACK	    0x58
#define GPCMD_REPORT_KEY		    0xa4
#define GPCMD_REQUEST_SENSE		    0x03
#define GPCMD_RESERVE_RZONE_TRACK	    0x53
#define GPCMD_SCAN			    0xba
#define GPCMD_SEEK			    0x2b
#define GPCMD_SEND_DVD_STRUCTURE	    0xad
#define GPCMD_SEND_EVENT		    0xa2
#define GPCMD_SEND_KEY			    0xa3
#define GPCMD_SEND_OPC			    0x54
#define GPCMD_SET_READ_AHEAD		    0xa7
#define GPCMD_SET_STREAMING		    0xb6
#define GPCMD_START_STOP_UNIT		    0x1b
#define GPCMD_STOP_PLAY_SCAN		    0x4e
#define GPCMD_TEST_UNIT_READY		    0x00
#define GPCMD_VERIFY_10			    0x2f
#define GPCMD_WRITE_10			    0x2a
#define GPCMD_WRITE_AND_VERIFY_10	    0x2e
/* This is listed as optional in ATAPI 2.6, but is (curiously)
 * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 * drives support it. */
#define GPCMD_SET_SPEED			    0xbb
/* This seems to be a SCSI specific CD-ROM opcode
 * to play data at track/index */
#define GPCMD_PLAYAUDIO_TI		    0x48
/*
 * From MS Media Status Notification Support Specification. For
 * older drives only.
 */
#define GPCMD_GET_MEDIA_STATUS		    0xda
#define GPCMD_MODE_SENSE_6		    0x1a

#define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
#define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
#define ATAPI_INT_REASON_REL            0x04
#define ATAPI_INT_REASON_TAG            0xf8

/* same constants as bochs */
#define ASC_ILLEGAL_OPCODE                   0x20
#define ASC_LOGICAL_BLOCK_OOR                0x21
#define ASC_INV_FIELD_IN_CMD_PACKET          0x24
#define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
#define ASC_INCOMPATIBLE_FORMAT              0x30
#define ASC_MEDIUM_NOT_PRESENT               0x3a
#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
#define ASC_MEDIA_REMOVAL_PREVENTED          0x53

#define CFA_NO_ERROR            0x00
#define CFA_MISC_ERROR          0x09
#define CFA_INVALID_COMMAND     0x20
#define CFA_INVALID_ADDRESS     0x21
#define CFA_ADDRESS_OVERFLOW    0x2f

#define SMART_READ_DATA       0xd0
#define SMART_READ_THRESH     0xd1
#define SMART_ATTR_AUTOSAVE   0xd2
#define SMART_SAVE_ATTR       0xd3
#define SMART_EXECUTE_OFFLINE 0xd4
#define SMART_READ_LOG        0xd5
#define SMART_WRITE_LOG       0xd6
#define SMART_ENABLE          0xd8
#define SMART_DISABLE         0xd9
#define SMART_STATUS          0xda

typedef enum { IDE_HD, IDE_CD, IDE_CFATA } IDEDriveKind;

typedef void EndTransferFunc(IDEState *);

typedef void DMAStartFunc(IDEDMA *, IDEState *, BlockDriverCompletionFunc *);
typedef void DMAVoidFunc(IDEDMA *);
typedef int DMAIntFunc(IDEDMA *, int);
typedef void DMAStopFunc(IDEDMA *, bool);
typedef void DMARestartFunc(void *, int, RunState);

struct unreported_events {
    bool eject_request;
    bool new_media;
};

enum ide_dma_cmd {
    IDE_DMA_READ,
    IDE_DMA_WRITE,
    IDE_DMA_TRIM,
};

#define ide_cmd_is_read(s) \
	((s)->dma_cmd == IDE_DMA_READ)

/* NOTE: IDEState represents in fact one drive */
struct IDEState {
    IDEBus *bus;
    uint8_t unit;
    /* ide config */
    IDEDriveKind drive_kind;
    int cylinders, heads, sectors, chs_trans;
    int64_t nb_sectors;
    int mult_sectors;
    int identify_set;
    uint8_t identify_data[512];
    int drive_serial;
    char drive_serial_str[21];
    char drive_model_str[41];
    uint64_t wwn;
    /* ide regs */
    uint8_t feature;
    uint8_t error;
    uint32_t nsector;
    uint8_t sector;
    uint8_t lcyl;
    uint8_t hcyl;
    /* other part of tf for lba48 support */
    uint8_t hob_feature;
    uint8_t hob_nsector;
    uint8_t hob_sector;
    uint8_t hob_lcyl;
    uint8_t hob_hcyl;

    uint8_t select;
    uint8_t status;

    /* set for lba48 access */
    uint8_t lba48;
    BlockDriverState *bs;
    char version[9];
    /* ATAPI specific */
    struct unreported_events events;
    uint8_t sense_key;
    uint8_t asc;
    bool tray_open;
    bool tray_locked;
    uint8_t cdrom_changed;
    int packet_transfer_size;
    int elementary_transfer_size;
    int io_buffer_index;
    int lba;
    int cd_sector_size;
    int atapi_dma; /* true if dma is requested for the packet cmd */
    BlockAcctCookie acct;
    BlockDriverAIOCB *pio_aiocb;
    struct iovec iov;
    QEMUIOVector qiov;
    /* ATA DMA state */
    int io_buffer_offset;
    int io_buffer_size;
    QEMUSGList sg;
    /* PIO transfer handling */
    int req_nb_sectors; /* number of sectors per interrupt */
    EndTransferFunc *end_transfer_func;
    uint8_t *data_ptr;
    uint8_t *data_end;
    uint8_t *io_buffer;
    /* PIO save/restore */
    int32_t io_buffer_total_len;
    int cur_io_buffer_offset;
    int cur_io_buffer_len;
    uint8_t end_transfer_fn_idx;
    QEMUTimer *sector_write_timer; /* only used for win2k install hack */
    uint32_t irq_count; /* counts IRQs when using win2k install hack */
    /* CF-ATA extended error */
    uint8_t ext_error;
    /* CF-ATA metadata storage */
    uint32_t mdata_size;
    uint8_t *mdata_storage;
    int media_changed;
    enum ide_dma_cmd dma_cmd;
    /* SMART */
    uint8_t smart_enabled;
    uint8_t smart_autosave;
    int smart_errors;
    uint8_t smart_selftest_count;
    uint8_t *smart_selftest_data;
    /* AHCI */
    int ncq_queues;
};

struct IDEDMAOps {
    DMAStartFunc *start_dma;
    DMAVoidFunc *start_transfer;
    DMAIntFunc *prepare_buf;
    DMAIntFunc *rw_buf;
    DMAIntFunc *set_unit;
    DMAStopFunc *set_inactive;
    DMAVoidFunc *cmd_done;
    DMARestartFunc *restart_cb;
    DMAVoidFunc *reset;
};

struct IDEDMA {
    const struct IDEDMAOps *ops;
    struct iovec iov;
    QEMUIOVector qiov;
    BlockDriverAIOCB *aiocb;
};

struct IDEBus {
    BusState qbus;
    IDEDevice *master;
    IDEDevice *slave;
    IDEState ifs[2];
    int bus_id;
    int max_units;
    IDEDMA *dma;
    uint8_t unit;
    uint8_t cmd;
    qemu_irq irq;

    int error_status;
};

#define TYPE_IDE_DEVICE "ide-device"
#define IDE_DEVICE(obj) \
     OBJECT_CHECK(IDEDevice, (obj), TYPE_IDE_DEVICE)
#define IDE_DEVICE_CLASS(klass) \
     OBJECT_CLASS_CHECK(IDEDeviceClass, (klass), TYPE_IDE_DEVICE)
#define IDE_DEVICE_GET_CLASS(obj) \
     OBJECT_GET_CLASS(IDEDeviceClass, (obj), TYPE_IDE_DEVICE)

typedef struct IDEDeviceClass {
    DeviceClass parent_class;
    int (*init)(IDEDevice *dev);
} IDEDeviceClass;

struct IDEDevice {
    DeviceState qdev;
    uint32_t unit;
    BlockConf conf;
    int chs_trans;
    char *version;
    char *serial;
    char *model;
    uint64_t wwn;
};

/* These are used for the error_status field of IDEBus */
#define IDE_RETRY_DMA  0x08
#define IDE_RETRY_PIO  0x10
#define IDE_RETRY_READ  0x20
#define IDE_RETRY_FLUSH 0x40
#define IDE_RETRY_TRIM 0x80

static inline IDEState *idebus_active_if(IDEBus *bus)
{
    return bus->ifs + bus->unit;
}

static inline void ide_set_irq(IDEBus *bus)
{
    if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
        qemu_irq_raise(bus->irq);
    }
}

/* hw/ide/core.c */
extern const VMStateDescription vmstate_ide_bus;

#define VMSTATE_IDE_BUS(_field, _state)                          \
    VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)

#define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num)              \
    VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)

extern const VMStateDescription vmstate_ide_drive;

#define VMSTATE_IDE_DRIVES(_field, _state) \
    VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)

void ide_bus_reset(IDEBus *bus);
int64_t ide_get_sector(IDEState *s);
void ide_set_sector(IDEState *s, int64_t sector_num);

void ide_start_dma(IDEState *s, BlockDriverCompletionFunc *cb);
void ide_dma_error(IDEState *s);

void ide_atapi_cmd_ok(IDEState *s);
void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
void ide_atapi_io_error(IDEState *s, int ret);

void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
uint32_t ide_status_read(void *opaque, uint32_t addr);
void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_data_readw(void *opaque, uint32_t addr);
void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_data_readl(void *opaque, uint32_t addr);

int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
                   const char *version, const char *serial, const char *model,
                   uint64_t wwn,
                   uint32_t cylinders, uint32_t heads, uint32_t secs,
                   int chs_trans);
void ide_init2(IDEBus *bus, qemu_irq irq);
void ide_init_ioport(IDEBus *bus, ISADevice *isa, int iobase, int iobase2);

void ide_exec_cmd(IDEBus *bus, uint32_t val);
void ide_dma_cb(void *opaque, int ret);
void ide_sector_write(IDEState *s);
void ide_sector_read(IDEState *s);
void ide_flush_cache(IDEState *s);

void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
                        EndTransferFunc *end_transfer_func);
void ide_transfer_stop(IDEState *s);
void ide_set_inactive(IDEState *s, bool more);
BlockDriverAIOCB *ide_issue_trim(BlockDriverState *bs,
        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
        BlockDriverCompletionFunc *cb, void *opaque);

/* hw/ide/atapi.c */
void ide_atapi_cmd(IDEState *s);
void ide_atapi_cmd_reply_end(IDEState *s);

/* hw/ide/qdev.c */
void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
                 int bus_id, int max_units);
IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);

#endif /* HW_IDE_INTERNAL_H */
OpenPOWER on IntegriCloud