hw/ide/internal.h

   1 #ifndef HW_IDE_INTERNAL_H
   2 #define HW_IDE_INTERNAL_H
   3
   4 /*
   5  * QEMU IDE Emulation -- internal header file
   6  * only files in hw/ide/ are supposed to include this file.
   7  * non-internal declarations are in hw/ide.h
   8  */
   9 #include <hw/ide.h>
  10
  11 /* debug IDE devices */
  12 //#define DEBUG_IDE
  13 //#define DEBUG_IDE_ATAPI
  14 //#define DEBUG_AIO
  15 #define USE_DMA_CDROM
  16
  17 typedef struct IDEBus IDEBus;
  18 typedef struct IDEState IDEState;
  19 typedef struct BMDMAState BMDMAState;
  20
  21 /* debug IDE devices */
  22 //#define DEBUG_IDE
  23 //#define DEBUG_IDE_ATAPI
  24 //#define DEBUG_AIO
  25 #define USE_DMA_CDROM
  26
  27 /* Bits of HD_STATUS */
  28 #define ERR_STAT                0x01
  29 #define INDEX_STAT              0x02
  30 #define ECC_STAT                0x04    /* Corrected error */
  31 #define DRQ_STAT                0x08
  32 #define SEEK_STAT               0x10
  33 #define SRV_STAT                0x10
  34 #define WRERR_STAT              0x20
  35 #define READY_STAT              0x40
  36 #define BUSY_STAT               0x80
  37
  38 /* Bits for HD_ERROR */
  39 #define MARK_ERR                0x01    /* Bad address mark */
  40 #define TRK0_ERR                0x02    /* couldn't find track 0 */
  41 #define ABRT_ERR                0x04    /* Command aborted */
  42 #define MCR_ERR                 0x08    /* media change request */
  43 #define ID_ERR                  0x10    /* ID field not found */
  44 #define MC_ERR                  0x20    /* media changed */
  45 #define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  46 #define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  47 #define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  48
  49 /* Bits of HD_NSECTOR */
  50 #define CD                      0x01
  51 #define IO                      0x02
  52 #define REL                     0x04
  53 #define TAG_MASK                0xf8
  54
  55 #define IDE_CMD_RESET           0x04
  56 #define IDE_CMD_DISABLE_IRQ     0x02
  57
  58 /* ATA/ATAPI Commands pre T13 Spec */
  59 #define WIN_NOP                         0x00
  60 /*
  61  *      0x01->0x02 Reserved
  62  */
  63 #define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
  64 /*
  65  *      0x04->0x07 Reserved
  66  */
  67 #define WIN_SRST                        0x08 /* ATAPI soft reset command */
  68 #define WIN_DEVICE_RESET                0x08
  69 /*
  70  *      0x09->0x0F Reserved
  71  */
  72 #define WIN_RECAL                       0x10
  73 #define WIN_RESTORE                     WIN_RECAL
  74 /*
  75  *      0x10->0x1F Reserved
  76  */
  77 #define WIN_READ                        0x20 /* 28-Bit */
  78 #define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
  79 #define WIN_READ_LONG                   0x22 /* 28-Bit */
  80 #define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
  81 #define WIN_READ_EXT                    0x24 /* 48-Bit */
  82 #define WIN_READDMA_EXT                 0x25 /* 48-Bit */
  83 #define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
  84 #define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
  85 /*
  86  *      0x28
  87  */
  88 #define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
  89 /*
  90  *      0x2A->0x2F Reserved
  91  */
  92 #define WIN_WRITE                       0x30 /* 28-Bit */
  93 #define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
  94 #define WIN_WRITE_LONG                  0x32 /* 28-Bit */
  95 #define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
  96 #define WIN_WRITE_EXT                   0x34 /* 48-Bit */
  97 #define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
  98 #define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
  99 #define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
 100 #define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
 101 #define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
 102 /*
 103  *      0x3A->0x3B Reserved
 104  */
 105 #define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
 106 /*
 107  *      0x3D->0x3F Reserved
 108  */
 109 #define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 110 #define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
 111 #define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 112 /*
 113  *      0x43->0x4F Reserved
 114  */
 115 #define WIN_FORMAT                      0x50
 116 /*
 117  *      0x51->0x5F Reserved
 118  */
 119 #define WIN_INIT                        0x60
 120 /*
 121  *      0x61->0x5F Reserved
 122  */
 123 #define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
 124 #define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 125 #define WIN_DIAGNOSE                    0x90
 126 #define WIN_SPECIFY                     0x91 /* set drive geometry translation */
 127 #define WIN_DOWNLOAD_MICROCODE          0x92
 128 #define WIN_STANDBYNOW2                 0x94
 129 #define CFA_IDLEIMMEDIATE               0x95 /* force drive to become "ready" */
 130 #define WIN_STANDBY2                    0x96
 131 #define WIN_SETIDLE2                    0x97
 132 #define WIN_CHECKPOWERMODE2             0x98
 133 #define WIN_SLEEPNOW2                   0x99
 134 /*
 135  *      0x9A VENDOR
 136  */
 137 #define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 138 #define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 139 #define WIN_QUEUED_SERVICE              0xA2
 140 #define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 141 #define CFA_ACCESS_METADATA_STORAGE     0xB8
 142 #define CFA_ERASE_SECTORS               0xC0 /* microdrives implement as NOP */
 143 #define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 144 #define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 145 #define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 146 #define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
 147 #define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 148 #define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
 149 #define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 150 #define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
 151 #define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
 152 #define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 153 #define WIN_GETMEDIASTATUS              0xDA
 154 #define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
 155 #define WIN_POSTBOOT                    0xDC
 156 #define WIN_PREBOOT                     0xDD
 157 #define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
 158 #define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
 159 #define WIN_STANDBYNOW1                 0xE0
 160 #define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 161 #define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 162 #define WIN_SETIDLE1                    0xE3
 163 #define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 164 #define WIN_CHECKPOWERMODE1             0xE5
 165 #define WIN_SLEEPNOW1                   0xE6
 166 #define WIN_FLUSH_CACHE                 0xE7
 167 #define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 168 #define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
 169         /* SET_FEATURES 0x22 or 0xDD */
 170 #define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 171 #define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 172 #define WIN_MEDIAEJECT                  0xED
 173 #define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
 174 #define WIN_SETFEATURES                 0xEF /* set special drive features */
 175 #define EXABYTE_ENABLE_NEST             0xF0
 176 #define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature */
 177 #define WIN_SECURITY_SET_PASS           0xF1
 178 #define WIN_SECURITY_UNLOCK             0xF2
 179 #define WIN_SECURITY_ERASE_PREPARE      0xF3
 180 #define WIN_SECURITY_ERASE_UNIT         0xF4
 181 #define WIN_SECURITY_FREEZE_LOCK        0xF5
 182 #define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP */
 183 #define WIN_SECURITY_DISABLE            0xF6
 184 #define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 185 #define WIN_SET_MAX                     0xF9
 186 #define DISABLE_SEAGATE                 0xFB
 187
 188 /* set to 1 set disable mult support */
 189 #define MAX_MULT_SECTORS 16
 190
 191 #define IDE_DMA_BUF_SECTORS 256
 192
 193 #if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
 194 #error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
 195 #endif
 196
 197 /* ATAPI defines */
 198
 199 #define ATAPI_PACKET_SIZE 12
 200
 201 /* The generic packet command opcodes for CD/DVD Logical Units,
 202  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
 203 #define GPCMD_BLANK                         0xa1
 204 #define GPCMD_CLOSE_TRACK                   0x5b
 205 #define GPCMD_FLUSH_CACHE                   0x35
 206 #define GPCMD_FORMAT_UNIT                   0x04
 207 #define GPCMD_GET_CONFIGURATION             0x46
 208 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
 209 #define GPCMD_GET_PERFORMANCE               0xac
 210 #define GPCMD_INQUIRY                       0x12
 211 #define GPCMD_LOAD_UNLOAD                   0xa6
 212 #define GPCMD_MECHANISM_STATUS              0xbd
 213 #define GPCMD_MODE_SELECT_10                0x55
 214 #define GPCMD_MODE_SENSE_10                 0x5a
 215 #define GPCMD_PAUSE_RESUME                  0x4b
 216 #define GPCMD_PLAY_AUDIO_10                 0x45
 217 #define GPCMD_PLAY_AUDIO_MSF                0x47
 218 #define GPCMD_PLAY_AUDIO_TI                 0x48
 219 #define GPCMD_PLAY_CD                       0xbc
 220 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
 221 #define GPCMD_READ_10                       0x28
 222 #define GPCMD_READ_12                       0xa8
 223 #define GPCMD_READ_CDVD_CAPACITY            0x25
 224 #define GPCMD_READ_CD                       0xbe
 225 #define GPCMD_READ_CD_MSF                   0xb9
 226 #define GPCMD_READ_DISC_INFO                0x51
 227 #define GPCMD_READ_DVD_STRUCTURE            0xad
 228 #define GPCMD_READ_FORMAT_CAPACITIES        0x23
 229 #define GPCMD_READ_HEADER                   0x44
 230 #define GPCMD_READ_TRACK_RZONE_INFO         0x52
 231 #define GPCMD_READ_SUBCHANNEL               0x42
 232 #define GPCMD_READ_TOC_PMA_ATIP             0x43
 233 #define GPCMD_REPAIR_RZONE_TRACK            0x58
 234 #define GPCMD_REPORT_KEY                    0xa4
 235 #define GPCMD_REQUEST_SENSE                 0x03
 236 #define GPCMD_RESERVE_RZONE_TRACK           0x53
 237 #define GPCMD_SCAN                          0xba
 238 #define GPCMD_SEEK                          0x2b
 239 #define GPCMD_SEND_DVD_STRUCTURE            0xad
 240 #define GPCMD_SEND_EVENT                    0xa2
 241 #define GPCMD_SEND_KEY                      0xa3
 242 #define GPCMD_SEND_OPC                      0x54
 243 #define GPCMD_SET_READ_AHEAD                0xa7
 244 #define GPCMD_SET_STREAMING                 0xb6
 245 #define GPCMD_START_STOP_UNIT               0x1b
 246 #define GPCMD_STOP_PLAY_SCAN                0x4e
 247 #define GPCMD_TEST_UNIT_READY               0x00
 248 #define GPCMD_VERIFY_10                     0x2f
 249 #define GPCMD_WRITE_10                      0x2a
 250 #define GPCMD_WRITE_AND_VERIFY_10           0x2e
 251 /* This is listed as optional in ATAPI 2.6, but is (curiously)
 252  * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 253  * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 254  * drives support it. */
 255 #define GPCMD_SET_SPEED                     0xbb
 256 /* This seems to be a SCSI specific CD-ROM opcode
 257  * to play data at track/index */
 258 #define GPCMD_PLAYAUDIO_TI                  0x48
 259 /*
 260  * From MS Media Status Notification Support Specification. For
 261  * older drives only.
 262  */
 263 #define GPCMD_GET_MEDIA_STATUS              0xda
 264 #define GPCMD_MODE_SENSE_6                  0x1a
 265
 266 /* Mode page codes for mode sense/set */
 267 #define GPMODE_R_W_ERROR_PAGE           0x01
 268 #define GPMODE_WRITE_PARMS_PAGE         0x05
 269 #define GPMODE_AUDIO_CTL_PAGE           0x0e
 270 #define GPMODE_POWER_PAGE               0x1a
 271 #define GPMODE_FAULT_FAIL_PAGE          0x1c
 272 #define GPMODE_TO_PROTECT_PAGE          0x1d
 273 #define GPMODE_CAPABILITIES_PAGE        0x2a
 274 #define GPMODE_ALL_PAGES                0x3f
 275 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
 276  * of MODE_SENSE_POWER_PAGE */
 277 #define GPMODE_CDROM_PAGE               0x0d
 278
 279 /*
 280  * Based on values from <linux/cdrom.h> but extending CD_MINS
 281  * to the maximum common size allowed by the Orange's Book ATIP
 282  *
 283  * 90 and 99 min CDs are also available but using them as the
 284  * upper limit reduces the effectiveness of the heuristic to
 285  * detect DVDs burned to less than 25% of their maximum capacity
 286  */
 287
 288 /* Some generally useful CD-ROM information */
 289 #define CD_MINS                       80 /* max. minutes per CD */
 290 #define CD_SECS                       60 /* seconds per minute */
 291 #define CD_FRAMES                     75 /* frames per second */
 292 #define CD_FRAMESIZE                2048 /* bytes per frame, "cooked" mode */
 293 #define CD_MAX_BYTES       (CD_MINS * CD_SECS * CD_FRAMES * CD_FRAMESIZE)
 294 #define CD_MAX_SECTORS     (CD_MAX_BYTES / 512)
 295
 296 /*
 297  * The MMC values are not IDE specific and might need to be moved
 298  * to a common header if they are also needed for the SCSI emulation
 299  */
 300
 301 /* Profile list from MMC-6 revision 1 table 91 */
 302 #define MMC_PROFILE_NONE                0x0000
 303 #define MMC_PROFILE_CD_ROM              0x0008
 304 #define MMC_PROFILE_CD_R                0x0009
 305 #define MMC_PROFILE_CD_RW               0x000A
 306 #define MMC_PROFILE_DVD_ROM             0x0010
 307 #define MMC_PROFILE_DVD_R_SR            0x0011
 308 #define MMC_PROFILE_DVD_RAM             0x0012
 309 #define MMC_PROFILE_DVD_RW_RO           0x0013
 310 #define MMC_PROFILE_DVD_RW_SR           0x0014
 311 #define MMC_PROFILE_DVD_R_DL_SR         0x0015
 312 #define MMC_PROFILE_DVD_R_DL_JR         0x0016
 313 #define MMC_PROFILE_DVD_RW_DL           0x0017
 314 #define MMC_PROFILE_DVD_DDR             0x0018
 315 #define MMC_PROFILE_DVD_PLUS_RW         0x001A
 316 #define MMC_PROFILE_DVD_PLUS_R          0x001B
 317 #define MMC_PROFILE_DVD_PLUS_RW_DL      0x002A
 318 #define MMC_PROFILE_DVD_PLUS_R_DL       0x002B
 319 #define MMC_PROFILE_BD_ROM              0x0040
 320 #define MMC_PROFILE_BD_R_SRM            0x0041
 321 #define MMC_PROFILE_BD_R_RRM            0x0042
 322 #define MMC_PROFILE_BD_RE               0x0043
 323 #define MMC_PROFILE_HDDVD_ROM           0x0050
 324 #define MMC_PROFILE_HDDVD_R             0x0051
 325 #define MMC_PROFILE_HDDVD_RAM           0x0052
 326 #define MMC_PROFILE_HDDVD_RW            0x0053
 327 #define MMC_PROFILE_HDDVD_R_DL          0x0058
 328 #define MMC_PROFILE_HDDVD_RW_DL         0x005A
 329 #define MMC_PROFILE_INVALID             0xFFFF
 330
 331 #define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
 332 #define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
 333 #define ATAPI_INT_REASON_REL            0x04
 334 #define ATAPI_INT_REASON_TAG            0xf8
 335
 336 /* same constants as bochs */
 337 #define ASC_ILLEGAL_OPCODE                   0x20
 338 #define ASC_LOGICAL_BLOCK_OOR                0x21
 339 #define ASC_INV_FIELD_IN_CMD_PACKET          0x24
 340 #define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
 341 #define ASC_INCOMPATIBLE_FORMAT              0x30
 342 #define ASC_MEDIUM_NOT_PRESENT               0x3a
 343 #define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
 344 #define ASC_MEDIA_REMOVAL_PREVENTED          0x53
 345
 346 #define CFA_NO_ERROR            0x00
 347 #define CFA_MISC_ERROR          0x09
 348 #define CFA_INVALID_COMMAND     0x20
 349 #define CFA_INVALID_ADDRESS     0x21
 350 #define CFA_ADDRESS_OVERFLOW    0x2f
 351
 352 #define SENSE_NONE            0
 353 #define SENSE_NOT_READY       2
 354 #define SENSE_ILLEGAL_REQUEST 5
 355 #define SENSE_UNIT_ATTENTION  6
 356
 357 #define SMART_READ_DATA       0xd0
 358 #define SMART_READ_THRESH     0xd1
 359 #define SMART_ATTR_AUTOSAVE   0xd2
 360 #define SMART_SAVE_ATTR       0xd3
 361 #define SMART_EXECUTE_OFFLINE 0xd4
 362 #define SMART_READ_LOG        0xd5
 363 #define SMART_WRITE_LOG       0xd6
 364 #define SMART_ENABLE          0xd8
 365 #define SMART_DISABLE         0xd9
 366 #define SMART_STATUS          0xda
 367
 368 typedef void EndTransferFunc(IDEState *);
 369
 370 /* NOTE: IDEState represents in fact one drive */
 371 struct IDEState {
 372     IDEBus *bus;
 373     uint8_t unit;
 374     /* ide config */
 375     int is_cdrom;
 376     int is_cf;
 377     int cylinders, heads, sectors;
 378     int64_t nb_sectors;
 379     int mult_sectors;
 380     int identify_set;
 381     uint16_t identify_data[256];
 382     int drive_serial;
 383     char drive_serial_str[21];
 384     /* ide regs */
 385     uint8_t feature;
 386     uint8_t error;
 387     uint32_t nsector;
 388     uint8_t sector;
 389     uint8_t lcyl;
 390     uint8_t hcyl;
 391     /* other part of tf for lba48 support */
 392     uint8_t hob_feature;
 393     uint8_t hob_nsector;
 394     uint8_t hob_sector;
 395     uint8_t hob_lcyl;
 396     uint8_t hob_hcyl;
 397
 398     uint8_t select;
 399     uint8_t status;
 400
 401     /* set for lba48 access */
 402     uint8_t lba48;
 403     BlockDriverState *bs;
 404     /* ATAPI specific */
 405     uint8_t sense_key;
 406     uint8_t asc;
 407     uint8_t cdrom_changed;
 408     int packet_transfer_size;
 409     int elementary_transfer_size;
 410     int io_buffer_index;
 411     int lba;
 412     int cd_sector_size;
 413     int atapi_dma; /* true if dma is requested for the packet cmd */
 414     /* ATA DMA state */
 415     int io_buffer_size;
 416     QEMUSGList sg;
 417     /* PIO transfer handling */
 418     int req_nb_sectors; /* number of sectors per interrupt */
 419     EndTransferFunc *end_transfer_func;
 420     uint8_t *data_ptr;
 421     uint8_t *data_end;
 422     uint8_t *io_buffer;
 423     QEMUTimer *sector_write_timer; /* only used for win2k install hack */
 424     uint32_t irq_count; /* counts IRQs when using win2k install hack */
 425     /* CF-ATA extended error */
 426     uint8_t ext_error;
 427     /* CF-ATA metadata storage */
 428     uint32_t mdata_size;
 429     uint8_t *mdata_storage;
 430     int media_changed;
 431     /* for pmac */
 432     int is_read;
 433     /* SMART */
 434     uint8_t smart_enabled;
 435     uint8_t smart_autosave;
 436     int smart_errors;
 437     uint8_t smart_selftest_count;
 438     uint8_t *smart_selftest_data;
 439 };
 440
 441 struct IDEBus {
 442     BusState qbus;
 443     BMDMAState *bmdma;
 444     IDEState ifs[2];
 445     uint8_t unit;
 446     uint8_t cmd;
 447     qemu_irq irq;
 448 };
 449
 450 #define BM_STATUS_DMAING 0x01
 451 #define BM_STATUS_ERROR  0x02
 452 #define BM_STATUS_INT    0x04
 453 #define BM_STATUS_DMA_RETRY  0x08
 454 #define BM_STATUS_PIO_RETRY  0x10
 455
 456 #define BM_CMD_START     0x01
 457 #define BM_CMD_READ      0x08
 458
 459 struct BMDMAState {
 460     uint8_t cmd;
 461     uint8_t status;
 462     uint32_t addr;
 463
 464     struct PCIIDEState *pci_dev;
 465     IDEBus *bus;
 466     /* current transfer state */
 467     uint32_t cur_addr;
 468     uint32_t cur_prd_last;
 469     uint32_t cur_prd_addr;
 470     uint32_t cur_prd_len;
 471     uint8_t unit;
 472     BlockDriverCompletionFunc *dma_cb;
 473     BlockDriverAIOCB *aiocb;
 474     struct iovec iov;
 475     QEMUIOVector qiov;
 476     int64_t sector_num;
 477     uint32_t nsector;
 478     QEMUBH *bh;
 479 };
 480
 481 static inline IDEState *idebus_active_if(IDEBus *bus)
 482 {
 483     return bus->ifs + bus->unit;
 484 }
 485
 486 static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
 487 {
 488     assert(bmdma->unit != (uint8_t)-1);
 489     return bmdma->bus->ifs + bmdma->unit;
 490 }
 491
 492 static inline void ide_set_irq(IDEBus *bus)
 493 {
 494     BMDMAState *bm = bus->bmdma;
 495     if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
 496         if (bm) {
 497             bm->status |= BM_STATUS_INT;
 498         }
 499         qemu_irq_raise(bus->irq);
 500     }
 501 }
 502
 503 /* ide.c */
 504 void ide_save(QEMUFile* f, IDEState *s);
 505 void ide_load(QEMUFile* f, IDEState *s, int version_id);
 506 void idebus_save(QEMUFile* f, IDEBus *bus);
 507 void idebus_load(QEMUFile* f, IDEBus *bus, int version_id);
 508
 509 void ide_reset(IDEState *s);
 510 int64_t ide_get_sector(IDEState *s);
 511 void ide_set_sector(IDEState *s, int64_t sector_num);
 512
 513 void ide_dma_cancel(BMDMAState *bm);
 514 void ide_dma_restart_cb(void *opaque, int running, int reason);
 515 void ide_dma_error(IDEState *s);
 516
 517 void ide_atapi_cmd_ok(IDEState *s);
 518 void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 519 void ide_atapi_io_error(IDEState *s, int ret);
 520
 521 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 522 uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 523 uint32_t ide_status_read(void *opaque, uint32_t addr);
 524 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 525 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 526 uint32_t ide_data_readw(void *opaque, uint32_t addr);
 527 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 528 uint32_t ide_data_readl(void *opaque, uint32_t addr);
 529
 530 void ide_init_drive(IDEState *s, DriveInfo *dinfo);
 531 void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1,
 532                qemu_irq irq);
 533 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
 534
 535 #endif /* HW_IDE_INTERNAL_H */