LXR qemu/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
  18typedef struct IDEBus IDEBus;
  19typedef struct IDEDevice IDEDevice;
  20typedef struct IDEDeviceInfo IDEDeviceInfo;
  21typedef struct IDEState IDEState;
  22typedef 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
 365typedef enum { IDE_HD, IDE_CD, IDE_CFATA } IDEDriveKind;
 366
 367typedef void EndTransferFunc(IDEState *);
 368
 369/* NOTE: IDEState represents in fact one drive */
 370struct 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
 445struct 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
 456struct IDEDevice {
 457    DeviceState qdev;
 458    uint32_t unit;
 459    BlockConf conf;
 460    char *version;
 461    char *serial;
 462};
 463
 464typedef int (*ide_qdev_initfn)(IDEDevice *dev);
 465struct 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
 480struct 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
 501static inline IDEState *idebus_active_if(IDEBus *bus)
 502{
 503    return bus->ifs + bus->unit;
 504}
 505
 506static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
 507{
 508    assert(bmdma->unit != (uint8_t)-1);
 509    return bmdma->bus->ifs + bmdma->unit;
 510}
 511
 512static 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 */
 524extern 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
 532extern 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
 537void ide_bus_reset(IDEBus *bus);
 538int64_t ide_get_sector(IDEState *s);
 539void ide_set_sector(IDEState *s, int64_t sector_num);
 540
 541void ide_dma_cancel(BMDMAState *bm);
 542void ide_dma_restart_cb(void *opaque, int running, int reason);
 543void ide_dma_error(IDEState *s);
 544void ide_dma_reset(BMDMAState *bm);
 545
 546void ide_atapi_cmd_ok(IDEState *s);
 547void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 548void ide_atapi_io_error(IDEState *s, int ret);
 549
 550void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 551uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 552uint32_t ide_status_read(void *opaque, uint32_t addr);
 553void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 554void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 555uint32_t ide_data_readw(void *opaque, uint32_t addr);
 556void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 557uint32_t ide_data_readl(void *opaque, uint32_t addr);
 558
 559int ide_init_drive(IDEState *s, BlockDriverState *bs,
 560                   const char *version, const char *serial);
 561void ide_init2(IDEBus *bus, qemu_irq irq);
 562void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
 563                                    DriveInfo *hd1, qemu_irq irq);
 564void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
 565
 566/* hw/ide/qdev.c */
 567void ide_bus_new(IDEBus *idebus, DeviceState *dev);
 568IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 569
 570#endif /* HW_IDE_INTERNAL_H */
 571