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 #include "block_int.h"
  11
  12 /* debug IDE devices */
  13 //#define DEBUG_IDE
  14 //#define DEBUG_IDE_ATAPI
  15 //#define DEBUG_AIO
  16 #define USE_DMA_CDROM
  17
  18 typedef struct IDEBus IDEBus;
  19 typedef struct IDEDevice IDEDevice;
  20 typedef struct IDEDeviceInfo IDEDeviceInfo;
  21 typedef struct IDEState IDEState;
  22 typedef struct BMDMAState BMDMAState;
  23
  24 /* Bits of HD_STATUS */
  25 #define ERR_STAT                0x01
  26 #define INDEX_STAT              0x02
  27 #define ECC_STAT                0x04    /* Corrected error */
  28 #define DRQ_STAT                0x08
  29 #define SEEK_STAT               0x10
  30 #define SRV_STAT                0x10
  31 #define WRERR_STAT              0x20
  32 #define READY_STAT              0x40
  33 #define BUSY_STAT               0x80
  34
  35 /* Bits for HD_ERROR */
  36 #define MARK_ERR                0x01    /* Bad address mark */
  37 #define TRK0_ERR                0x02    /* couldn't find track 0 */
  38 #define ABRT_ERR                0x04    /* Command aborted */
  39 #define MCR_ERR                 0x08    /* media change request */
  40 #define ID_ERR                  0x10    /* ID field not found */
  41 #define MC_ERR                  0x20    /* media changed */
  42 #define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  43 #define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  44 #define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  45
  46 /* Bits of HD_NSECTOR */
  47 #define CD                      0x01
  48 #define IO                      0x02
  49 #define REL                     0x04
  50 #define TAG_MASK                0xf8
  51
  52 #define IDE_CMD_RESET           0x04
  53 #define IDE_CMD_DISABLE_IRQ     0x02
  54
  55 /* ATA/ATAPI Commands pre T13 Spec */
  56 #define WIN_NOP                         0x00
  57 /*
  58  *      0x01->0x02 Reserved
  59  */
  60 #define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
  61 /*
  62  *      0x04->0x07 Reserved
  63  */
  64 #define WIN_SRST                        0x08 /* ATAPI soft reset command */
  65 #define WIN_DEVICE_RESET                0x08
  66 /*
  67  *      0x09->0x0F Reserved
  68  */
  69 #define WIN_RECAL                       0x10
  70 #define WIN_RESTORE                     WIN_RECAL
  71 /*
  72  *      0x10->0x1F Reserved
  73  */
  74 #define WIN_READ                        0x20 /* 28-Bit */
  75 #define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
  76 #define WIN_READ_LONG                   0x22 /* 28-Bit */
  77 #define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
  78 #define WIN_READ_EXT                    0x24 /* 48-Bit */
  79 #define WIN_READDMA_EXT                 0x25 /* 48-Bit */
  80 #define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
  81 #define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
  82 /*
  83  *      0x28
  84  */
  85 #define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
  86 /*
  87  *      0x2A->0x2F Reserved
  88  */
  89 #define WIN_WRITE                       0x30 /* 28-Bit */
  90 #define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
  91 #define WIN_WRITE_LONG                  0x32 /* 28-Bit */
  92 #define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
  93 #define WIN_WRITE_EXT                   0x34 /* 48-Bit */
  94 #define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
  95 #define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
  96 #define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
  97 #define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
  98 #define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
  99 /*
 100  *      0x3A->0x3B Reserved
 101  */
 102 #define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
 103 /*
 104  *      0x3D->0x3F Reserved
 105  */
 106 #define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 107 #define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
 108 #define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 109 /*
 110  *      0x43->0x4F Reserved
 111  */
 112 #define WIN_FORMAT                      0x50
 113 /*
 114  *      0x51->0x5F Reserved
 115  */
 116 #define WIN_INIT                        0x60
 117 /*
 118  *      0x61->0x5F Reserved
 119  */
 120 #define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
 121 #define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 122 #define WIN_DIAGNOSE                    0x90
 123 #define WIN_SPECIFY                     0x91 /* set drive geometry translation */
 124 #define WIN_DOWNLOAD_MICROCODE          0x92
 125 #define WIN_STANDBYNOW2                 0x94
 126 #define CFA_IDLEIMMEDIATE               0x95 /* force drive to become "ready" */
 127 #define WIN_STANDBY2                    0x96
 128 #define WIN_SETIDLE2                    0x97
 129 #define WIN_CHECKPOWERMODE2             0x98
 130 #define WIN_SLEEPNOW2                   0x99
 131 /*
 132  *      0x9A VENDOR
 133  */
 134 #define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 135 #define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 136 #define WIN_QUEUED_SERVICE              0xA2
 137 #define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 138 #define CFA_ACCESS_METADATA_STORAGE     0xB8
 139 #define CFA_ERASE_SECTORS               0xC0 /* microdrives implement as NOP */
 140 #define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 141 #define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 142 #define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 143 #define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
 144 #define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 145 #define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
 146 #define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 147 #define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
 148 #define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
 149 #define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 150 #define WIN_GETMEDIASTATUS              0xDA
 151 #define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
 152 #define WIN_POSTBOOT                    0xDC
 153 #define WIN_PREBOOT                     0xDD
 154 #define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
 155 #define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
 156 #define WIN_STANDBYNOW1                 0xE0
 157 #define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 158 #define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 159 #define WIN_SETIDLE1                    0xE3
 160 #define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 161 #define WIN_CHECKPOWERMODE1             0xE5
 162 #define WIN_SLEEPNOW1                   0xE6
 163 #define WIN_FLUSH_CACHE                 0xE7
 164 #define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 165 #define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
 166         /* SET_FEATURES 0x22 or 0xDD */
 167 #define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 168 #define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 169 #define WIN_MEDIAEJECT                  0xED
 170 #define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
 171 #define WIN_SETFEATURES                 0xEF /* set special drive features */
 172 #define EXABYTE_ENABLE_NEST             0xF0
 173 #define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature */
 174 #define WIN_SECURITY_SET_PASS           0xF1
 175 #define WIN_SECURITY_UNLOCK             0xF2
 176 #define WIN_SECURITY_ERASE_PREPARE      0xF3
 177 #define WIN_SECURITY_ERASE_UNIT         0xF4
 178 #define WIN_SECURITY_FREEZE_LOCK        0xF5
 179 #define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP */
 180 #define WIN_SECURITY_DISABLE            0xF6
 181 #define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 182 #define WIN_SET_MAX                     0xF9
 183 #define DISABLE_SEAGATE                 0xFB
 184
 185 /* set to 1 set disable mult support */
 186 #define MAX_MULT_SECTORS 16
 187
 188 #define IDE_DMA_BUF_SECTORS 256
 189
 190 #if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
 191 #error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
 192 #endif
 193
 194 /* ATAPI defines */
 195
 196 #define ATAPI_PACKET_SIZE 12
 197
 198 /* The generic packet command opcodes for CD/DVD Logical Units,
 199  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
 200 #define GPCMD_BLANK                         0xa1
 201 #define GPCMD_CLOSE_TRACK                   0x5b
 202 #define GPCMD_FLUSH_CACHE                   0x35
 203 #define GPCMD_FORMAT_UNIT                   0x04
 204 #define GPCMD_GET_CONFIGURATION             0x46
 205 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
 206 #define GPCMD_GET_PERFORMANCE               0xac
 207 #define GPCMD_INQUIRY                       0x12
 208 #define GPCMD_LOAD_UNLOAD                   0xa6
 209 #define GPCMD_MECHANISM_STATUS              0xbd
 210 #define GPCMD_MODE_SELECT_10                0x55
 211 #define GPCMD_MODE_SENSE_10                 0x5a
 212 #define GPCMD_PAUSE_RESUME                  0x4b
 213 #define GPCMD_PLAY_AUDIO_10                 0x45
 214 #define GPCMD_PLAY_AUDIO_MSF                0x47
 215 #define GPCMD_PLAY_AUDIO_TI                 0x48
 216 #define GPCMD_PLAY_CD                       0xbc
 217 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
 218 #define GPCMD_READ_10                       0x28
 219 #define GPCMD_READ_12                       0xa8
 220 #define GPCMD_READ_CDVD_CAPACITY            0x25
 221 #define GPCMD_READ_CD                       0xbe
 222 #define GPCMD_READ_CD_MSF                   0xb9
 223 #define GPCMD_READ_DISC_INFO                0x51
 224 #define GPCMD_READ_DVD_STRUCTURE            0xad
 225 #define GPCMD_READ_FORMAT_CAPACITIES        0x23
 226 #define GPCMD_READ_HEADER                   0x44
 227 #define GPCMD_READ_TRACK_RZONE_INFO         0x52
 228 #define GPCMD_READ_SUBCHANNEL               0x42
 229 #define GPCMD_READ_TOC_PMA_ATIP             0x43
 230 #define GPCMD_REPAIR_RZONE_TRACK            0x58
 231 #define GPCMD_REPORT_KEY                    0xa4
 232 #define GPCMD_REQUEST_SENSE                 0x03
 233 #define GPCMD_RESERVE_RZONE_TRACK           0x53
 234 #define GPCMD_SCAN                          0xba
 235 #define GPCMD_SEEK                          0x2b
 236 #define GPCMD_SEND_DVD_STRUCTURE            0xad
 237 #define GPCMD_SEND_EVENT                    0xa2
 238 #define GPCMD_SEND_KEY                      0xa3
 239 #define GPCMD_SEND_OPC                      0x54
 240 #define GPCMD_SET_READ_AHEAD                0xa7
 241 #define GPCMD_SET_STREAMING                 0xb6
 242 #define GPCMD_START_STOP_UNIT               0x1b
 243 #define GPCMD_STOP_PLAY_SCAN                0x4e
 244 #define GPCMD_TEST_UNIT_READY               0x00
 245 #define GPCMD_VERIFY_10                     0x2f
 246 #define GPCMD_WRITE_10                      0x2a
 247 #define GPCMD_WRITE_AND_VERIFY_10           0x2e
 248 /* This is listed as optional in ATAPI 2.6, but is (curiously)
 249  * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 250  * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 251  * drives support it. */
 252 #define GPCMD_SET_SPEED                     0xbb
 253 /* This seems to be a SCSI specific CD-ROM opcode
 254  * to play data at track/index */
 255 #define GPCMD_PLAYAUDIO_TI                  0x48
 256 /*
 257  * From MS Media Status Notification Support Specification. For
 258  * older drives only.
 259  */
 260 #define GPCMD_GET_MEDIA_STATUS              0xda
 261 #define GPCMD_MODE_SENSE_6                  0x1a
 262
 263 /* Mode page codes for mode sense/set */
 264 #define GPMODE_R_W_ERROR_PAGE           0x01
 265 #define GPMODE_WRITE_PARMS_PAGE         0x05
 266 #define GPMODE_AUDIO_CTL_PAGE           0x0e
 267 #define GPMODE_POWER_PAGE               0x1a
 268 #define GPMODE_FAULT_FAIL_PAGE          0x1c
 269 #define GPMODE_TO_PROTECT_PAGE          0x1d
 270 #define GPMODE_CAPABILITIES_PAGE        0x2a
 271 #define GPMODE_ALL_PAGES                0x3f
 272 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
 273  * of MODE_SENSE_POWER_PAGE */
 274 #define GPMODE_CDROM_PAGE               0x0d
 275
 276 /*
 277  * Based on values from <linux/cdrom.h> but extending CD_MINS
 278  * to the maximum common size allowed by the Orange's Book ATIP
 279  *
 280  * 90 and 99 min CDs are also available but using them as the
 281  * upper limit reduces the effectiveness of the heuristic to
 282  * detect DVDs burned to less than 25% of their maximum capacity
 283  */
 284
 285 /* Some generally useful CD-ROM information */
 286 #define CD_MINS                       80 /* max. minutes per CD */
 287 #define CD_SECS                       60 /* seconds per minute */
 288 #define CD_FRAMES                     75 /* frames per second */
 289 #define CD_FRAMESIZE                2048 /* bytes per frame, "cooked" mode */
 290 #define CD_MAX_BYTES       (CD_MINS * CD_SECS * CD_FRAMES * CD_FRAMESIZE)
 291 #define CD_MAX_SECTORS     (CD_MAX_BYTES / 512)
 292
 293 /*
 294  * The MMC values are not IDE specific and might need to be moved
 295  * to a common header if they are also needed for the SCSI emulation
 296  */
 297
 298 /* Profile list from MMC-6 revision 1 table 91 */
 299 #define MMC_PROFILE_NONE                0x0000
 300 #define MMC_PROFILE_CD_ROM              0x0008
 301 #define MMC_PROFILE_CD_R                0x0009
 302 #define MMC_PROFILE_CD_RW               0x000A
 303 #define MMC_PROFILE_DVD_ROM             0x0010
 304 #define MMC_PROFILE_DVD_R_SR            0x0011
 305 #define MMC_PROFILE_DVD_RAM             0x0012
 306 #define MMC_PROFILE_DVD_RW_RO           0x0013
 307 #define MMC_PROFILE_DVD_RW_SR           0x0014
 308 #define MMC_PROFILE_DVD_R_DL_SR         0x0015
 309 #define MMC_PROFILE_DVD_R_DL_JR         0x0016
 310 #define MMC_PROFILE_DVD_RW_DL           0x0017
 311 #define MMC_PROFILE_DVD_DDR             0x0018
 312 #define MMC_PROFILE_DVD_PLUS_RW         0x001A
 313 #define MMC_PROFILE_DVD_PLUS_R          0x001B
 314 #define MMC_PROFILE_DVD_PLUS_RW_DL      0x002A
 315 #define MMC_PROFILE_DVD_PLUS_R_DL       0x002B
 316 #define MMC_PROFILE_BD_ROM              0x0040
 317 #define MMC_PROFILE_BD_R_SRM            0x0041
 318 #define MMC_PROFILE_BD_R_RRM            0x0042
 319 #define MMC_PROFILE_BD_RE               0x0043
 320 #define MMC_PROFILE_HDDVD_ROM           0x0050
 321 #define MMC_PROFILE_HDDVD_R             0x0051
 322 #define MMC_PROFILE_HDDVD_RAM           0x0052
 323 #define MMC_PROFILE_HDDVD_RW            0x0053
 324 #define MMC_PROFILE_HDDVD_R_DL          0x0058
 325 #define MMC_PROFILE_HDDVD_RW_DL         0x005A
 326 #define MMC_PROFILE_INVALID             0xFFFF
 327
 328 #define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
 329 #define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
 330 #define ATAPI_INT_REASON_REL            0x04
 331 #define ATAPI_INT_REASON_TAG            0xf8
 332
 333 /* same constants as bochs */
 334 #define ASC_ILLEGAL_OPCODE                   0x20
 335 #define ASC_LOGICAL_BLOCK_OOR                0x21
 336 #define ASC_INV_FIELD_IN_CMD_PACKET          0x24
 337 #define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
 338 #define ASC_INCOMPATIBLE_FORMAT              0x30
 339 #define ASC_MEDIUM_NOT_PRESENT               0x3a
 340 #define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
 341 #define ASC_MEDIA_REMOVAL_PREVENTED          0x53
 342
 343 #define CFA_NO_ERROR            0x00
 344 #define CFA_MISC_ERROR          0x09
 345 #define CFA_INVALID_COMMAND     0x20
 346 #define CFA_INVALID_ADDRESS     0x21
 347 #define CFA_ADDRESS_OVERFLOW    0x2f
 348
 349 #define SENSE_NONE            0
 350 #define SENSE_NOT_READY       2
 351 #define SENSE_ILLEGAL_REQUEST 5
 352 #define SENSE_UNIT_ATTENTION  6
 353
 354 #define SMART_READ_DATA       0xd0
 355 #define SMART_READ_THRESH     0xd1
 356 #define SMART_ATTR_AUTOSAVE   0xd2
 357 #define SMART_SAVE_ATTR       0xd3
 358 #define SMART_EXECUTE_OFFLINE 0xd4
 359 #define SMART_READ_LOG        0xd5
 360 #define SMART_WRITE_LOG       0xd6
 361 #define SMART_ENABLE          0xd8
 362 #define SMART_DISABLE         0xd9
 363 #define SMART_STATUS          0xda
 364
 365 typedef enum { IDE_HD, IDE_CD, IDE_CFATA } IDEDriveKind;
 366
 367 typedef void EndTransferFunc(IDEState *);
 368
 369 /* NOTE: IDEState represents in fact one drive */
 370 struct IDEState {
 371     IDEBus *bus;
 372     uint8_t unit;
 373     /* ide config */
 374     IDEDriveKind drive_kind;
 375     int cylinders, heads, sectors;
 376     int64_t nb_sectors;
 377     int mult_sectors;
 378     int identify_set;
 379     uint8_t identify_data[512];
 380     int drive_serial;
 381     char drive_serial_str[21];
 382     /* ide regs */
 383     uint8_t feature;
 384     uint8_t error;
 385     uint32_t nsector;
 386     uint8_t sector;
 387     uint8_t lcyl;
 388     uint8_t hcyl;
 389     /* other part of tf for lba48 support */
 390     uint8_t hob_feature;
 391     uint8_t hob_nsector;
 392     uint8_t hob_sector;
 393     uint8_t hob_lcyl;
 394     uint8_t hob_hcyl;
 395
 396     uint8_t select;
 397     uint8_t status;
 398
 399     /* set for lba48 access */
 400     uint8_t lba48;
 401     BlockDriverState *bs;
 402     char version[9];
 403     /* ATAPI specific */
 404     uint8_t sense_key;
 405     uint8_t asc;
 406     uint8_t cdrom_changed;
 407     int packet_transfer_size;
 408     int elementary_transfer_size;
 409     int io_buffer_index;
 410     int lba;
 411     int cd_sector_size;
 412     int atapi_dma; /* true if dma is requested for the packet cmd */
 413     /* ATA DMA state */
 414     int io_buffer_size;
 415     QEMUSGList sg;
 416     /* PIO transfer handling */
 417     int req_nb_sectors; /* number of sectors per interrupt */
 418     EndTransferFunc *end_transfer_func;
 419     uint8_t *data_ptr;
 420     uint8_t *data_end;
 421     uint8_t *io_buffer;
 422     /* PIO save/restore */
 423     int32_t io_buffer_total_len;
 424     int cur_io_buffer_offset;
 425     int cur_io_buffer_len;
 426     uint8_t end_transfer_fn_idx;
 427     QEMUTimer *sector_write_timer; /* only used for win2k install hack */
 428     uint32_t irq_count; /* counts IRQs when using win2k install hack */
 429     /* CF-ATA extended error */
 430     uint8_t ext_error;
 431     /* CF-ATA metadata storage */
 432     uint32_t mdata_size;
 433     uint8_t *mdata_storage;
 434     int media_changed;
 435     /* for pmac */
 436     int is_read;
 437     /* SMART */
 438     uint8_t smart_enabled;
 439     uint8_t smart_autosave;
 440     int smart_errors;
 441     uint8_t smart_selftest_count;
 442     uint8_t *smart_selftest_data;
 443 };
 444
 445 struct IDEBus {
 446     BusState qbus;
 447     IDEDevice *master;
 448     IDEDevice *slave;
 449     BMDMAState *bmdma;
 450     IDEState ifs[2];
 451     uint8_t unit;
 452     uint8_t cmd;
 453     qemu_irq irq;
 454 };
 455
 456 struct IDEDevice {
 457     DeviceState qdev;
 458     uint32_t unit;
 459     BlockConf conf;
 460     char *version;
 461     char *serial;
 462 };
 463
 464 typedef int (*ide_qdev_initfn)(IDEDevice *dev);
 465 struct IDEDeviceInfo {
 466     DeviceInfo qdev;
 467     ide_qdev_initfn init;
 468 };
 469
 470 #define BM_STATUS_DMAING 0x01
 471 #define BM_STATUS_ERROR  0x02
 472 #define BM_STATUS_INT    0x04
 473 #define BM_STATUS_DMA_RETRY  0x08
 474 #define BM_STATUS_PIO_RETRY  0x10
 475 #define BM_STATUS_RETRY_READ 0x20
 476
 477 #define BM_CMD_START     0x01
 478 #define BM_CMD_READ      0x08
 479
 480 struct BMDMAState {
 481     uint8_t cmd;
 482     uint8_t status;
 483     uint32_t addr;
 484
 485     IDEBus *bus;
 486     /* current transfer state */
 487     uint32_t cur_addr;
 488     uint32_t cur_prd_last;
 489     uint32_t cur_prd_addr;
 490     uint32_t cur_prd_len;
 491     uint8_t unit;
 492     BlockDriverCompletionFunc *dma_cb;
 493     BlockDriverAIOCB *aiocb;
 494     struct iovec iov;
 495     QEMUIOVector qiov;
 496     int64_t sector_num;
 497     uint32_t nsector;
 498     QEMUBH *bh;
 499 };
 500
 501 static inline IDEState *idebus_active_if(IDEBus *bus)
 502 {
 503     return bus->ifs + bus->unit;
 504 }
 505
 506 static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
 507 {
 508     assert(bmdma->unit != (uint8_t)-1);
 509     return bmdma->bus->ifs + bmdma->unit;
 510 }
 511
 512 static inline void ide_set_irq(IDEBus *bus)
 513 {
 514     BMDMAState *bm = bus->bmdma;
 515     if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
 516         if (bm) {
 517             bm->status |= BM_STATUS_INT;
 518         }
 519         qemu_irq_raise(bus->irq);
 520     }
 521 }
 522
 523 /* hw/ide/core.c */
 524 extern const VMStateDescription vmstate_ide_bus;
 525
 526 #define VMSTATE_IDE_BUS(_field, _state)                          \
 527     VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)
 528
 529 #define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num)              \
 530     VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)
 531
 532 extern const VMStateDescription vmstate_ide_drive;
 533
 534 #define VMSTATE_IDE_DRIVES(_field, _state) \
 535     VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)
 536
 537 void ide_bus_reset(IDEBus *bus);
 538 int64_t ide_get_sector(IDEState *s);
 539 void ide_set_sector(IDEState *s, int64_t sector_num);
 540
 541 void ide_dma_cancel(BMDMAState *bm);
 542 void ide_dma_restart_cb(void *opaque, int running, int reason);
 543 void ide_dma_error(IDEState *s);
 544 void ide_dma_reset(BMDMAState *bm);
 545
 546 void ide_atapi_cmd_ok(IDEState *s);
 547 void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 548 void ide_atapi_io_error(IDEState *s, int ret);
 549
 550 void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 551 uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 552 uint32_t ide_status_read(void *opaque, uint32_t addr);
 553 void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 554 void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 555 uint32_t ide_data_readw(void *opaque, uint32_t addr);
 556 void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 557 uint32_t ide_data_readl(void *opaque, uint32_t addr);
 558
 559 void ide_init_drive(IDEState *s, BlockDriverState *bs,
 560                     const char *version, const char *serial);
 561 void ide_init2(IDEBus *bus, qemu_irq irq);
 562 void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
 563                                     DriveInfo *hd1, qemu_irq irq);
 564 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
 565
 566 /* hw/ide/qdev.c */
 567 void ide_bus_new(IDEBus *idebus, DeviceState *dev);
 568 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 569
 570 #endif /* HW_IDE_INTERNAL_H */