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 IDEDevice IDEDevice;
  19 typedef struct IDEDeviceInfo IDEDeviceInfo;
  20 typedef struct IDEState IDEState;
  21 typedef struct BMDMAState BMDMAState;
  22
  23 /* Bits of HD_STATUS */
  24 #define ERR_STAT                0x01
  25 #define INDEX_STAT              0x02
  26 #define ECC_STAT                0x04    /* Corrected error */
  27 #define DRQ_STAT                0x08
  28 #define SEEK_STAT               0x10
  29 #define SRV_STAT                0x10
  30 #define WRERR_STAT              0x20
  31 #define READY_STAT              0x40
  32 #define BUSY_STAT               0x80
  33
  34 /* Bits for HD_ERROR */
  35 #define MARK_ERR                0x01    /* Bad address mark */
  36 #define TRK0_ERR                0x02    /* couldn't find track 0 */
  37 #define ABRT_ERR                0x04    /* Command aborted */
  38 #define MCR_ERR                 0x08    /* media change request */
  39 #define ID_ERR                  0x10    /* ID field not found */
  40 #define MC_ERR                  0x20    /* media changed */
  41 #define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  42 #define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  43 #define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  44
  45 /* Bits of HD_NSECTOR */
  46 #define CD                      0x01
  47 #define IO                      0x02
  48 #define REL                     0x04
  49 #define TAG_MASK                0xf8
  50
  51 #define IDE_CMD_RESET           0x04
  52 #define IDE_CMD_DISABLE_IRQ     0x02
  53
  54 /* ATA/ATAPI Commands pre T13 Spec */
  55 #define WIN_NOP                         0x00
  56 /*
  57  *      0x01->0x02 Reserved
  58  */
  59 #define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
  60 /*
  61  *      0x04->0x07 Reserved
  62  */
  63 #define WIN_SRST                        0x08 /* ATAPI soft reset command */
  64 #define WIN_DEVICE_RESET                0x08
  65 /*
  66  *      0x09->0x0F Reserved
  67  */
  68 #define WIN_RECAL                       0x10
  69 #define WIN_RESTORE                     WIN_RECAL
  70 /*
  71  *      0x10->0x1F Reserved
  72  */
  73 #define WIN_READ                        0x20 /* 28-Bit */
  74 #define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
  75 #define WIN_READ_LONG                   0x22 /* 28-Bit */
  76 #define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
  77 #define WIN_READ_EXT                    0x24 /* 48-Bit */
  78 #define WIN_READDMA_EXT                 0x25 /* 48-Bit */
  79 #define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
  80 #define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
  81 /*
  82  *      0x28
  83  */
  84 #define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
  85 /*
  86  *      0x2A->0x2F Reserved
  87  */
  88 #define WIN_WRITE                       0x30 /* 28-Bit */
  89 #define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
  90 #define WIN_WRITE_LONG                  0x32 /* 28-Bit */
  91 #define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
  92 #define WIN_WRITE_EXT                   0x34 /* 48-Bit */
  93 #define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
  94 #define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
  95 #define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
  96 #define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
  97 #define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
  98 /*
  99  *      0x3A->0x3B Reserved
 100  */
 101 #define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
 102 /*
 103  *      0x3D->0x3F Reserved
 104  */
 105 #define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 106 #define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
 107 #define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 108 /*
 109  *      0x43->0x4F Reserved
 110  */
 111 #define WIN_FORMAT                      0x50
 112 /*
 113  *      0x51->0x5F Reserved
 114  */
 115 #define WIN_INIT                        0x60
 116 /*
 117  *      0x61->0x5F Reserved
 118  */
 119 #define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
 120 #define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 121 #define WIN_DIAGNOSE                    0x90
 122 #define WIN_SPECIFY                     0x91 /* set drive geometry translation */
 123 #define WIN_DOWNLOAD_MICROCODE          0x92
 124 #define WIN_STANDBYNOW2                 0x94
 125 #define CFA_IDLEIMMEDIATE               0x95 /* force drive to become "ready" */
 126 #define WIN_STANDBY2                    0x96
 127 #define WIN_SETIDLE2                    0x97
 128 #define WIN_CHECKPOWERMODE2             0x98
 129 #define WIN_SLEEPNOW2                   0x99
 130 /*
 131  *      0x9A VENDOR
 132  */
 133 #define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 134 #define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 135 #define WIN_QUEUED_SERVICE              0xA2
 136 #define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 137 #define CFA_ACCESS_METADATA_STORAGE     0xB8
 138 #define CFA_ERASE_SECTORS               0xC0 /* microdrives implement as NOP */
 139 #define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 140 #define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 141 #define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 142 #define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
 143 #define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 144 #define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
 145 #define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 146 #define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
 147 #define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
 148 #define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 149 #define WIN_GETMEDIASTATUS              0xDA
 150 #define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
 151 #define WIN_POSTBOOT                    0xDC
 152 #define WIN_PREBOOT                     0xDD
 153 #define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
 154 #define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
 155 #define WIN_STANDBYNOW1                 0xE0
 156 #define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 157 #define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 158 #define WIN_SETIDLE1                    0xE3
 159 #define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 160 #define WIN_CHECKPOWERMODE1             0xE5
 161 #define WIN_SLEEPNOW1                   0xE6
 162 #define WIN_FLUSH_CACHE                 0xE7
 163 #define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 164 #define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
 165         /* SET_FEATURES 0x22 or 0xDD */
 166 #define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 167 #define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 168 #define WIN_MEDIAEJECT                  0xED
 169 #define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
 170 #define WIN_SETFEATURES                 0xEF /* set special drive features */
 171 #define EXABYTE_ENABLE_NEST             0xF0
 172 #define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature */
 173 #define WIN_SECURITY_SET_PASS           0xF1
 174 #define WIN_SECURITY_UNLOCK             0xF2
 175 #define WIN_SECURITY_ERASE_PREPARE      0xF3
 176 #define WIN_SECURITY_ERASE_UNIT         0xF4
 177 #define WIN_SECURITY_FREEZE_LOCK        0xF5
 178 #define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP */
 179 #define WIN_SECURITY_DISABLE            0xF6
 180 #define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 181 #define WIN_SET_MAX                     0xF9
 182 #define DISABLE_SEAGATE                 0xFB
 183
 184 /* set to 1 set disable mult support */
 185 #define MAX_MULT_SECTORS 16
 186
 187 #define IDE_DMA_BUF_SECTORS 256
 188
 189 #if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
 190 #error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
 191 #endif
 192
 193 /* ATAPI defines */
 194
 195 #define ATAPI_PACKET_SIZE 12
 196
 197 /* The generic packet command opcodes for CD/DVD Logical Units,
 198  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
 199 #define GPCMD_BLANK                         0xa1
 200 #define GPCMD_CLOSE_TRACK                   0x5b
 201 #define GPCMD_FLUSH_CACHE                   0x35
 202 #define GPCMD_FORMAT_UNIT                   0x04
 203 #define GPCMD_GET_CONFIGURATION             0x46
 204 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
 205 #define GPCMD_GET_PERFORMANCE               0xac
 206 #define GPCMD_INQUIRY                       0x12
 207 #define GPCMD_LOAD_UNLOAD                   0xa6
 208 #define GPCMD_MECHANISM_STATUS              0xbd
 209 #define GPCMD_MODE_SELECT_10                0x55
 210 #define GPCMD_MODE_SENSE_10                 0x5a
 211 #define GPCMD_PAUSE_RESUME                  0x4b
 212 #define GPCMD_PLAY_AUDIO_10                 0x45
 213 #define GPCMD_PLAY_AUDIO_MSF                0x47
 214 #define GPCMD_PLAY_AUDIO_TI                 0x48
 215 #define GPCMD_PLAY_CD                       0xbc
 216 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
 217 #define GPCMD_READ_10                       0x28
 218 #define GPCMD_READ_12                       0xa8
 219 #define GPCMD_READ_CDVD_CAPACITY            0x25
 220 #define GPCMD_READ_CD                       0xbe
 221 #define GPCMD_READ_CD_MSF                   0xb9
 222 #define GPCMD_READ_DISC_INFO                0x51
 223 #define GPCMD_READ_DVD_STRUCTURE            0xad
 224 #define GPCMD_READ_FORMAT_CAPACITIES        0x23
 225 #define GPCMD_READ_HEADER                   0x44
 226 #define GPCMD_READ_TRACK_RZONE_INFO         0x52
 227 #define GPCMD_READ_SUBCHANNEL               0x42
 228 #define GPCMD_READ_TOC_PMA_ATIP             0x43
 229 #define GPCMD_REPAIR_RZONE_TRACK            0x58
 230 #define GPCMD_REPORT_KEY                    0xa4
 231 #define GPCMD_REQUEST_SENSE                 0x03
 232 #define GPCMD_RESERVE_RZONE_TRACK           0x53
 233 #define GPCMD_SCAN                          0xba
 234 #define GPCMD_SEEK                          0x2b
 235 #define GPCMD_SEND_DVD_STRUCTURE            0xad
 236 #define GPCMD_SEND_EVENT                    0xa2
 237 #define GPCMD_SEND_KEY                      0xa3
 238 #define GPCMD_SEND_OPC                      0x54
 239 #define GPCMD_SET_READ_AHEAD                0xa7
 240 #define GPCMD_SET_STREAMING                 0xb6
 241 #define GPCMD_START_STOP_UNIT               0x1b
 242 #define GPCMD_STOP_PLAY_SCAN                0x4e
 243 #define GPCMD_TEST_UNIT_READY               0x00
 244 #define GPCMD_VERIFY_10                     0x2f
 245 #define GPCMD_WRITE_10                      0x2a
 246 #define GPCMD_WRITE_AND_VERIFY_10           0x2e
 247 /* This is listed as optional in ATAPI 2.6, but is (curiously)
 248  * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 249  * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 250  * drives support it. */
 251 #define GPCMD_SET_SPEED                     0xbb
 252 /* This seems to be a SCSI specific CD-ROM opcode
 253  * to play data at track/index */
 254 #define GPCMD_PLAYAUDIO_TI                  0x48
 255 /*
 256  * From MS Media Status Notification Support Specification. For
 257  * older drives only.
 258  */
 259 #define GPCMD_GET_MEDIA_STATUS              0xda
 260 #define GPCMD_MODE_SENSE_6                  0x1a
 261
 262 /* Mode page codes for mode sense/set */
 263 #define GPMODE_R_W_ERROR_PAGE           0x01
 264 #define GPMODE_WRITE_PARMS_PAGE         0x05
 265 #define GPMODE_AUDIO_CTL_PAGE           0x0e
 266 #define GPMODE_POWER_PAGE               0x1a
 267 #define GPMODE_FAULT_FAIL_PAGE          0x1c
 268 #define GPMODE_TO_PROTECT_PAGE          0x1d
 269 #define GPMODE_CAPABILITIES_PAGE        0x2a
 270 #define GPMODE_ALL_PAGES                0x3f
 271 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
 272  * of MODE_SENSE_POWER_PAGE */
 273 #define GPMODE_CDROM_PAGE               0x0d
 274
 275 /*
 276  * Based on values from <linux/cdrom.h> but extending CD_MINS
 277  * to the maximum common size allowed by the Orange's Book ATIP
 278  *
 279  * 90 and 99 min CDs are also available but using them as the
 280  * upper limit reduces the effectiveness of the heuristic to
 281  * detect DVDs burned to less than 25% of their maximum capacity
 282  */
 283
 284 /* Some generally useful CD-ROM information */
 285 #define CD_MINS                       80 /* max. minutes per CD */
 286 #define CD_SECS                       60 /* seconds per minute */
 287 #define CD_FRAMES                     75 /* frames per second */
 288 #define CD_FRAMESIZE                2048 /* bytes per frame, "cooked" mode */
 289 #define CD_MAX_BYTES       (CD_MINS * CD_SECS * CD_FRAMES * CD_FRAMESIZE)
 290 #define CD_MAX_SECTORS     (CD_MAX_BYTES / 512)
 291
 292 /*
 293  * The MMC values are not IDE specific and might need to be moved
 294  * to a common header if they are also needed for the SCSI emulation
 295  */
 296
 297 /* Profile list from MMC-6 revision 1 table 91 */
 298 #define MMC_PROFILE_NONE                0x0000
 299 #define MMC_PROFILE_CD_ROM              0x0008
 300 #define MMC_PROFILE_CD_R                0x0009
 301 #define MMC_PROFILE_CD_RW               0x000A
 302 #define MMC_PROFILE_DVD_ROM             0x0010
 303 #define MMC_PROFILE_DVD_R_SR            0x0011
 304 #define MMC_PROFILE_DVD_RAM             0x0012
 305 #define MMC_PROFILE_DVD_RW_RO           0x0013
 306 #define MMC_PROFILE_DVD_RW_SR           0x0014
 307 #define MMC_PROFILE_DVD_R_DL_SR         0x0015
 308 #define MMC_PROFILE_DVD_R_DL_JR         0x0016
 309 #define MMC_PROFILE_DVD_RW_DL           0x0017
 310 #define MMC_PROFILE_DVD_DDR             0x0018
 311 #define MMC_PROFILE_DVD_PLUS_RW         0x001A
 312 #define MMC_PROFILE_DVD_PLUS_R          0x001B
 313 #define MMC_PROFILE_DVD_PLUS_RW_DL      0x002A
 314 #define MMC_PROFILE_DVD_PLUS_R_DL       0x002B
 315 #define MMC_PROFILE_BD_ROM              0x0040
 316 #define MMC_PROFILE_BD_R_SRM            0x0041
 317 #define MMC_PROFILE_BD_R_RRM            0x0042
 318 #define MMC_PROFILE_BD_RE               0x0043
 319 #define MMC_PROFILE_HDDVD_ROM           0x0050
 320 #define MMC_PROFILE_HDDVD_R             0x0051
 321 #define MMC_PROFILE_HDDVD_RAM           0x0052
 322 #define MMC_PROFILE_HDDVD_RW            0x0053
 323 #define MMC_PROFILE_HDDVD_R_DL          0x0058
 324 #define MMC_PROFILE_HDDVD_RW_DL         0x005A
 325 #define MMC_PROFILE_INVALID             0xFFFF
 326
 327 #define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
 328 #define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
 329 #define ATAPI_INT_REASON_REL            0x04
 330 #define ATAPI_INT_REASON_TAG            0xf8
 331
 332 /* same constants as bochs */
 333 #define ASC_ILLEGAL_OPCODE                   0x20
 334 #define ASC_LOGICAL_BLOCK_OOR                0x21
 335 #define ASC_INV_FIELD_IN_CMD_PACKET          0x24
 336 #define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
 337 #define ASC_INCOMPATIBLE_FORMAT              0x30
 338 #define ASC_MEDIUM_NOT_PRESENT               0x3a
 339 #define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
 340 #define ASC_MEDIA_REMOVAL_PREVENTED          0x53
 341
 342 #define CFA_NO_ERROR            0x00
 343 #define CFA_MISC_ERROR          0x09
 344 #define CFA_INVALID_COMMAND     0x20
 345 #define CFA_INVALID_ADDRESS     0x21
 346 #define CFA_ADDRESS_OVERFLOW    0x2f
 347
 348 #define SENSE_NONE            0
 349 #define SENSE_NOT_READY       2
 350 #define SENSE_ILLEGAL_REQUEST 5
 351 #define SENSE_UNIT_ATTENTION  6
 352
 353 #define SMART_READ_DATA       0xd0
 354 #define SMART_READ_THRESH     0xd1
 355 #define SMART_ATTR_AUTOSAVE   0xd2
 356 #define SMART_SAVE_ATTR       0xd3
 357 #define SMART_EXECUTE_OFFLINE 0xd4
 358 #define SMART_READ_LOG        0xd5
 359 #define SMART_WRITE_LOG       0xd6
 360 #define SMART_ENABLE          0xd8
 361 #define SMART_DISABLE         0xd9
 362 #define SMART_STATUS          0xda
 363
 364 typedef void EndTransferFunc(IDEState *);
 365
 366 /* NOTE: IDEState represents in fact one drive */
 367 struct IDEState {
 368     IDEBus *bus;
 369     uint8_t unit;
 370     /* ide config */
 371     int is_cdrom;
 372     int is_cf;
 373     int cylinders, heads, sectors;
 374     int64_t nb_sectors;
 375     int mult_sectors;
 376     int identify_set;
 377     uint8_t identify_data[512];
 378     int drive_serial;
 379     char drive_serial_str[21];
 380     /* ide regs */
 381     uint8_t feature;
 382     uint8_t error;
 383     uint32_t nsector;
 384     uint8_t sector;
 385     uint8_t lcyl;
 386     uint8_t hcyl;
 387     /* other part of tf for lba48 support */
 388     uint8_t hob_feature;
 389     uint8_t hob_nsector;
 390     uint8_t hob_sector;
 391     uint8_t hob_lcyl;
 392     uint8_t hob_hcyl;
 393
 394     uint8_t select;
 395     uint8_t status;
 396
 397     /* set for lba48 access */
 398     uint8_t lba48;
 399     BlockDriverState *bs;
 400     char version[9];
 401     /* ATAPI specific */
 402     uint8_t sense_key;
 403     uint8_t asc;
 404     uint8_t cdrom_changed;
 405     int packet_transfer_size;
 406     int elementary_transfer_size;
 407     int io_buffer_index;
 408     int lba;
 409     int cd_sector_size;
 410     int atapi_dma; /* true if dma is requested for the packet cmd */
 411     /* ATA DMA state */
 412     int io_buffer_size;
 413     QEMUSGList sg;
 414     /* PIO transfer handling */
 415     int req_nb_sectors; /* number of sectors per interrupt */
 416     EndTransferFunc *end_transfer_func;
 417     uint8_t *data_ptr;
 418     uint8_t *data_end;
 419     uint8_t *io_buffer;
 420     QEMUTimer *sector_write_timer; /* only used for win2k install hack */
 421     uint32_t irq_count; /* counts IRQs when using win2k install hack */
 422     /* CF-ATA extended error */
 423     uint8_t ext_error;
 424     /* CF-ATA metadata storage */
 425     uint32_t mdata_size;
 426     uint8_t *mdata_storage;
 427     int media_changed;
 428     /* for pmac */
 429     int is_read;
 430     /* SMART */
 431     uint8_t smart_enabled;
 432     uint8_t smart_autosave;
 433     int smart_errors;
 434     uint8_t smart_selftest_count;
 435     uint8_t *smart_selftest_data;
 436 };
 437
 438 struct IDEBus {
 439     BusState qbus;
 440     IDEDevice *master;
 441     IDEDevice *slave;
 442     BMDMAState *bmdma;
 443     IDEState ifs[2];
 444     uint8_t unit;
 445     uint8_t cmd;
 446     qemu_irq irq;
 447 };
 448
 449 struct IDEDevice {
 450     DeviceState qdev;
 451     uint32_t unit;
 452     DriveInfo *dinfo;
 453     char *version;
 454 };
 455
 456 typedef int (*ide_qdev_initfn)(IDEDevice *dev);
 457 struct IDEDeviceInfo {
 458     DeviceInfo qdev;
 459     ide_qdev_initfn init;
 460     uint32_t unit;
 461     DriveInfo *drive;
 462 };
 463
 464 #define BM_STATUS_DMAING 0x01
 465 #define BM_STATUS_ERROR  0x02
 466 #define BM_STATUS_INT    0x04
 467 #define BM_STATUS_DMA_RETRY  0x08
 468 #define BM_STATUS_PIO_RETRY  0x10
 469 #define BM_STATUS_RETRY_READ 0x20
 470
 471 #define BM_CMD_START     0x01
 472 #define BM_CMD_READ      0x08
 473
 474 struct BMDMAState {
 475     uint8_t cmd;
 476     uint8_t status;
 477     uint32_t addr;
 478
 479     struct PCIIDEState *pci_dev;
 480     IDEBus *bus;
 481     /* current transfer state */
 482     uint32_t cur_addr;
 483     uint32_t cur_prd_last;
 484     uint32_t cur_prd_addr;
 485     uint32_t cur_prd_len;
 486     uint8_t unit;
 487     BlockDriverCompletionFunc *dma_cb;
 488     BlockDriverAIOCB *aiocb;
 489     struct iovec iov;
 490     QEMUIOVector qiov;
 491     int64_t sector_num;
 492     uint32_t nsector;
 493     QEMUBH *bh;
 494 };
 495
 496 static inline IDEState *idebus_active_if(IDEBus *bus)
 497 {
 498     return bus->ifs + bus->unit;
 499 }
 500
 501 static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
 502 {
 503     assert(bmdma->unit != (uint8_t)-1);
 504     return bmdma->bus->ifs + bmdma->unit;
 505 }
 506
 507 static inline void ide_set_irq(IDEBus *bus)
 508 {
 509     BMDMAState *bm = bus->bmdma;
 510     if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
 511         if (bm) {
 512             bm->status |= BM_STATUS_INT;
 513         }
 514         qemu_irq_raise(bus->irq);
 515     }
 516 }
 517
 518 /* hw/ide/core.c */
 519 extern const VMStateDescription vmstate_ide_bus;
 520
 521 #define VMSTATE_IDE_BUS(_field, _state)                          \
 522     VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)
 523
 524 #define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num)              \
 525     VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)
 526
 527 extern const VMStateDescription vmstate_ide_drive;
 528
 529 #define VMSTATE_IDE_DRIVES(_field, _state) \
 530     VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)
 531
 532 void ide_bus_reset(IDEBus *bus);
 533 int64_t ide_get_sector(IDEState *s);
 534 void ide_set_sector(IDEState *s, int64_t sector_num);
 535
 536 void ide_dma_cancel(BMDMAState *bm);
 537 void ide_dma_restart_cb(void *opaque, int running, int reason);
 538 void ide_dma_error(IDEState *s);
 539 void ide_dma_reset(BMDMAState *bm);
 540
 541 void ide_atapi_cmd_ok(IDEState *s);
 542 void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 543 void ide_atapi_io_error(IDEState *s, int ret);
 544
 545 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 546 uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 547 uint32_t ide_status_read(void *opaque, uint32_t addr);
 548 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 549 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 550 uint32_t ide_data_readw(void *opaque, uint32_t addr);
 551 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 552 uint32_t ide_data_readl(void *opaque, uint32_t addr);
 553
 554 void ide_init_drive(IDEState *s, DriveInfo *dinfo, const char *version);
 555 void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1,
 556                qemu_irq irq);
 557 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
 558
 559 /* hw/ide/qdev.c */
 560 void ide_bus_new(IDEBus *idebus, DeviceState *dev);
 561 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 562
 563 #endif /* HW_IDE_INTERNAL_H */