LXR qemu/include/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 "hw/isa/isa.h"
  11#include "sysemu/dma.h"
  12#include "sysemu/sysemu.h"
  13#include "hw/block/block.h"
  14#include "block/scsi.h"
  15
  16/* debug IDE devices */
  17//#define DEBUG_IDE
  18//#define DEBUG_IDE_ATAPI
  19//#define DEBUG_AIO
  20#define USE_DMA_CDROM
  21
  22typedef struct IDEBus IDEBus;
  23typedef struct IDEDevice IDEDevice;
  24typedef struct IDEState IDEState;
  25typedef struct IDEDMA IDEDMA;
  26typedef struct IDEDMAOps IDEDMAOps;
  27
  28#define TYPE_IDE_BUS "IDE"
  29#define IDE_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
  30
  31/* Bits of HD_STATUS */
  32#define ERR_STAT                0x01
  33#define INDEX_STAT              0x02
  34#define ECC_STAT                0x04    /* Corrected error */
  35#define DRQ_STAT                0x08
  36#define SEEK_STAT               0x10
  37#define SRV_STAT                0x10
  38#define WRERR_STAT              0x20
  39#define READY_STAT              0x40
  40#define BUSY_STAT               0x80
  41
  42/* Bits for HD_ERROR */
  43#define MARK_ERR                0x01    /* Bad address mark */
  44#define TRK0_ERR                0x02    /* couldn't find track 0 */
  45#define ABRT_ERR                0x04    /* Command aborted */
  46#define MCR_ERR                 0x08    /* media change request */
  47#define ID_ERR                  0x10    /* ID field not found */
  48#define MC_ERR                  0x20    /* media changed */
  49#define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  50#define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  51#define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  52
  53/* Bits of HD_NSECTOR */
  54#define CD                      0x01
  55#define IO                      0x02
  56#define REL                     0x04
  57#define TAG_MASK                0xf8
  58
  59#define IDE_CMD_RESET           0x04
  60#define IDE_CMD_DISABLE_IRQ     0x02
  61
  62/* ACS-2 T13/2015-D Table B.2 Command codes */
  63#define WIN_NOP                         0x00
  64/* reserved                             0x01..0x02 */
  65#define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
  66/* reserved                             0x04..0x05 */
  67#define WIN_DSM                         0x06
  68/* reserved                             0x07 */
  69#define WIN_DEVICE_RESET                0x08
  70/* reserved                             0x09..0x0a */
  71/* REQUEST SENSE DATA EXT               0x0B */
  72/* reserved                             0x0C..0x0F */
  73#define WIN_RECAL                       0x10 /* obsolete since ATA4 */
  74/* obsolete since ATA3, retired in ATA4 0x11..0x1F */
  75#define WIN_READ                        0x20 /* 28-Bit */
  76#define WIN_READ_ONCE                   0x21 /* 28-Bit w/o retries, obsolete since ATA5 */
  77/* obsolete since ATA4                  0x22..0x23 */
  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, obsolete since ACS2 */
  81#define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
  82/* reserved                             0x28 */
  83#define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
  84/* READ STREAM DMA EXT                  0x2A */
  85/* READ STREAM EXT                      0x2B */
  86/* reserved                             0x2C..0x2E */
  87/* READ LOG EXT                         0x2F */
  88#define WIN_WRITE                       0x30 /* 28-Bit */
  89#define WIN_WRITE_ONCE                  0x31 /* 28-Bit w/o retries, obsolete since ATA5 */
  90/* obsolete since ATA4                  0x32..0x33 */
  91#define WIN_WRITE_EXT                   0x34 /* 48-Bit */
  92#define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
  93#define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
  94#define WIN_SET_MAX_EXT                 0x37 /* 48-Bit, obsolete since ACS2 */
  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/* WRITE STREAM DMA EXT                 0x3A */
  99/* WRITE STREAM EXT                     0x3B */
 100#define WIN_WRITE_VERIFY                0x3C /* 28-Bit, obsolete since ATA4 */
 101/* WRITE DMA FUA EXT                    0x3D */
 102/* obsolete since ACS2                  0x3E */
 103/* WRITE LOG EXT                        0x3F */
 104#define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 105#define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - w/o retries, obsolete since ATA5 */
 106#define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 107/* reserved                             0x43..0x44 */
 108/* WRITE UNCORRECTABLE EXT              0x45 */
 109/* reserved                             0x46 */
 110/* READ LOG DMA EXT                     0x47 */
 111/* reserved                             0x48..0x4F */
 112/* obsolete since ATA4                  0x50 */
 113/* CONFIGURE STREAM                     0x51 */
 114/* reserved                             0x52..0x56 */
 115/* WRITE LOG DMA EXT                    0x57 */
 116/* reserved                             0x58..0x5A */
 117/* TRUSTED NON DATA                     0x5B */
 118/* TRUSTED RECEIVE                      0x5C */
 119/* TRUSTED RECEIVE DMA                  0x5D */
 120/* TRUSTED SEND                         0x5E */
 121/* TRUSTED SEND DMA                     0x5F */
 122/* READ FPDMA QUEUED                    0x60 */
 123/* WRITE FPDMA QUEUED                   0x61 */
 124/* reserved                             0x62->0x6F */
 125#define WIN_SEEK                        0x70 /* obsolete since ATA7 */
 126/* reserved                             0x71-0x7F */
 127/* vendor specific                      0x80-0x86 */
 128#define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 129/* vendor specific                      0x88-0x8F */
 130#define WIN_DIAGNOSE                    0x90
 131#define WIN_SPECIFY                     0x91 /* set drive geometry translation, obsolete since ATA6 */
 132#define WIN_DOWNLOAD_MICROCODE          0x92
 133/* DOWNLOAD MICROCODE DMA               0x93 */
 134#define WIN_STANDBYNOW2                 0x94 /* retired in ATA4 */
 135#define WIN_IDLEIMMEDIATE2              0x95 /* force drive to become "ready", retired in ATA4 */
 136#define WIN_STANDBY2                    0x96 /* retired in ATA4 */
 137#define WIN_SETIDLE2                    0x97 /* retired in ATA4 */
 138#define WIN_CHECKPOWERMODE2             0x98 /* retired in ATA4 */
 139#define WIN_SLEEPNOW2                   0x99 /* retired in ATA4 */
 140/* vendor specific                      0x9A */
 141/* reserved                             0x9B..0x9F */
 142#define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 143#define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 144#define WIN_QUEUED_SERVICE              0xA2 /* obsolete since ACS2 */
 145/* reserved                             0xA3..0xAF */
 146#define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 147/* Device Configuration Overlay         0xB1 */
 148/* reserved                             0xB2..0xB3 */
 149/* Sanitize Device                      0xB4 */
 150/* reserved                             0xB5 */
 151/* NV Cache                             0xB6 */
 152/* reserved for CFA                     0xB7..0xBB */
 153#define CFA_ACCESS_METADATA_STORAGE     0xB8
 154/* reserved                             0xBC..0xBF */
 155#define CFA_ERASE_SECTORS               0xC0 /* microdrives implement as NOP */
 156/* vendor specific                      0xC1..0xC3 */
 157#define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 158#define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 159#define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 160#define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers, obsolete since ACS2 */
 161#define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 162#define WIN_READDMA_ONCE                0xC9 /* 28-Bit - w/o retries, obsolete since ATA5 */
 163#define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 164#define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - w/o retries, obsolete since ATA5 */
 165#define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers, obsolete since ACS2 */
 166#define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 167/* WRITE MULTIPLE FUA EXT               0xCE */
 168/* reserved                             0xCF..0xDO */
 169/* CHECK MEDIA CARD TYPE                0xD1 */
 170/* reserved for media card pass through 0xD2..0xD4 */
 171/* reserved                             0xD5..0xD9 */
 172#define WIN_GETMEDIASTATUS              0xDA /* obsolete since ATA8 */
 173/* obsolete since ATA3, retired in ATA4 0xDB..0xDD */
 174#define WIN_DOORLOCK                    0xDE /* lock door on removable drives, obsolete since ATA8 */
 175#define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives, obsolete since ATA8 */
 176#define WIN_STANDBYNOW1                 0xE0
 177#define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 178#define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 179#define WIN_SETIDLE1                    0xE3
 180#define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 181#define WIN_CHECKPOWERMODE1             0xE5
 182#define WIN_SLEEPNOW1                   0xE6
 183#define WIN_FLUSH_CACHE                 0xE7
 184#define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 185/* READ BUFFER DMA                      0xE9 */
 186#define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 187/* WRITE BUFFER DMA                     0xEB */
 188#define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 189#define WIN_MEDIAEJECT                  0xED /* obsolete since ATA8 */
 190/* obsolete since ATA4                  0xEE */
 191#define WIN_SETFEATURES                 0xEF /* set special drive features */
 192#define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature, vendor specific */
 193#define WIN_SECURITY_SET_PASS           0xF1
 194#define WIN_SECURITY_UNLOCK             0xF2
 195#define WIN_SECURITY_ERASE_PREPARE      0xF3
 196#define WIN_SECURITY_ERASE_UNIT         0xF4
 197#define WIN_SECURITY_FREEZE_LOCK        0xF5
 198#define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP; not specified in T13! */
 199#define WIN_SECURITY_DISABLE            0xF6
 200/* vendor specific                      0xF7 */
 201#define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 202#define WIN_SET_MAX                     0xF9
 203/* vendor specific                      0xFA..0xFF */
 204
 205/* set to 1 set disable mult support */
 206#define MAX_MULT_SECTORS 16
 207
 208#define IDE_DMA_BUF_SECTORS 256
 209
 210/* feature values for Data Set Management */
 211#define DSM_TRIM                        0x01
 212
 213#if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
 214#error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
 215#endif
 216
 217/* ATAPI defines */
 218
 219#define ATAPI_PACKET_SIZE 12
 220
 221/* The generic packet command opcodes for CD/DVD Logical Units,
 222 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
 223#define GPCMD_BLANK                         0xa1
 224#define GPCMD_CLOSE_TRACK                   0x5b
 225#define GPCMD_FLUSH_CACHE                   0x35
 226#define GPCMD_FORMAT_UNIT                   0x04
 227#define GPCMD_GET_CONFIGURATION             0x46
 228#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
 229#define GPCMD_GET_PERFORMANCE               0xac
 230#define GPCMD_INQUIRY                       0x12
 231#define GPCMD_LOAD_UNLOAD                   0xa6
 232#define GPCMD_MECHANISM_STATUS              0xbd
 233#define GPCMD_MODE_SELECT_10                0x55
 234#define GPCMD_MODE_SENSE_10                 0x5a
 235#define GPCMD_PAUSE_RESUME                  0x4b
 236#define GPCMD_PLAY_AUDIO_10                 0x45
 237#define GPCMD_PLAY_AUDIO_MSF                0x47
 238#define GPCMD_PLAY_AUDIO_TI                 0x48
 239#define GPCMD_PLAY_CD                       0xbc
 240#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
 241#define GPCMD_READ_10                       0x28
 242#define GPCMD_READ_12                       0xa8
 243#define GPCMD_READ_CDVD_CAPACITY            0x25
 244#define GPCMD_READ_CD                       0xbe
 245#define GPCMD_READ_CD_MSF                   0xb9
 246#define GPCMD_READ_DISC_INFO                0x51
 247#define GPCMD_READ_DVD_STRUCTURE            0xad
 248#define GPCMD_READ_FORMAT_CAPACITIES        0x23
 249#define GPCMD_READ_HEADER                   0x44
 250#define GPCMD_READ_TRACK_RZONE_INFO         0x52
 251#define GPCMD_READ_SUBCHANNEL               0x42
 252#define GPCMD_READ_TOC_PMA_ATIP             0x43
 253#define GPCMD_REPAIR_RZONE_TRACK            0x58
 254#define GPCMD_REPORT_KEY                    0xa4
 255#define GPCMD_REQUEST_SENSE                 0x03
 256#define GPCMD_RESERVE_RZONE_TRACK           0x53
 257#define GPCMD_SCAN                          0xba
 258#define GPCMD_SEEK                          0x2b
 259#define GPCMD_SEND_DVD_STRUCTURE            0xad
 260#define GPCMD_SEND_EVENT                    0xa2
 261#define GPCMD_SEND_KEY                      0xa3
 262#define GPCMD_SEND_OPC                      0x54
 263#define GPCMD_SET_READ_AHEAD                0xa7
 264#define GPCMD_SET_STREAMING                 0xb6
 265#define GPCMD_START_STOP_UNIT               0x1b
 266#define GPCMD_STOP_PLAY_SCAN                0x4e
 267#define GPCMD_TEST_UNIT_READY               0x00
 268#define GPCMD_VERIFY_10                     0x2f
 269#define GPCMD_WRITE_10                      0x2a
 270#define GPCMD_WRITE_AND_VERIFY_10           0x2e
 271/* This is listed as optional in ATAPI 2.6, but is (curiously)
 272 * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 273 * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 274 * drives support it. */
 275#define GPCMD_SET_SPEED                     0xbb
 276/* This seems to be a SCSI specific CD-ROM opcode
 277 * to play data at track/index */
 278#define GPCMD_PLAYAUDIO_TI                  0x48
 279/*
 280 * From MS Media Status Notification Support Specification. For
 281 * older drives only.
 282 */
 283#define GPCMD_GET_MEDIA_STATUS              0xda
 284#define GPCMD_MODE_SENSE_6                  0x1a
 285
 286#define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
 287#define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
 288#define ATAPI_INT_REASON_REL            0x04
 289#define ATAPI_INT_REASON_TAG            0xf8
 290
 291/* same constants as bochs */
 292#define ASC_NO_SEEK_COMPLETE                 0x02
 293#define ASC_ILLEGAL_OPCODE                   0x20
 294#define ASC_LOGICAL_BLOCK_OOR                0x21
 295#define ASC_INV_FIELD_IN_CMD_PACKET          0x24
 296#define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
 297#define ASC_INCOMPATIBLE_FORMAT              0x30
 298#define ASC_MEDIUM_NOT_PRESENT               0x3a
 299#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
 300#define ASC_DATA_PHASE_ERROR                 0x4b
 301#define ASC_MEDIA_REMOVAL_PREVENTED          0x53
 302
 303#define CFA_NO_ERROR            0x00
 304#define CFA_MISC_ERROR          0x09
 305#define CFA_INVALID_COMMAND     0x20
 306#define CFA_INVALID_ADDRESS     0x21
 307#define CFA_ADDRESS_OVERFLOW    0x2f
 308
 309#define SMART_READ_DATA       0xd0
 310#define SMART_READ_THRESH     0xd1
 311#define SMART_ATTR_AUTOSAVE   0xd2
 312#define SMART_SAVE_ATTR       0xd3
 313#define SMART_EXECUTE_OFFLINE 0xd4
 314#define SMART_READ_LOG        0xd5
 315#define SMART_WRITE_LOG       0xd6
 316#define SMART_ENABLE          0xd8
 317#define SMART_DISABLE         0xd9
 318#define SMART_STATUS          0xda
 319
 320typedef enum { IDE_HD, IDE_CD, IDE_CFATA } IDEDriveKind;
 321
 322typedef void EndTransferFunc(IDEState *);
 323
 324typedef void DMAStartFunc(IDEDMA *, IDEState *, BlockCompletionFunc *);
 325typedef void DMAVoidFunc(IDEDMA *);
 326typedef int DMAIntFunc(IDEDMA *, int);
 327typedef int32_t DMAInt32Func(IDEDMA *, int32_t len);
 328typedef void DMAu32Func(IDEDMA *, uint32_t);
 329typedef void DMAStopFunc(IDEDMA *, bool);
 330typedef void DMARestartFunc(void *, int, RunState);
 331
 332struct unreported_events {
 333    bool eject_request;
 334    bool new_media;
 335};
 336
 337enum ide_dma_cmd {
 338    IDE_DMA_READ,
 339    IDE_DMA_WRITE,
 340    IDE_DMA_TRIM,
 341    IDE_DMA_ATAPI,
 342};
 343
 344#define ide_cmd_is_read(s) \
 345        ((s)->dma_cmd == IDE_DMA_READ)
 346
 347typedef struct IDEBufferedRequest {
 348    QLIST_ENTRY(IDEBufferedRequest) list;
 349    struct iovec iov;
 350    QEMUIOVector qiov;
 351    QEMUIOVector *original_qiov;
 352    BlockCompletionFunc *original_cb;
 353    void *original_opaque;
 354    bool orphaned;
 355} IDEBufferedRequest;
 356
 357/* NOTE: IDEState represents in fact one drive */
 358struct IDEState {
 359    IDEBus *bus;
 360    uint8_t unit;
 361    /* ide config */
 362    IDEDriveKind drive_kind;
 363    int cylinders, heads, sectors, chs_trans;
 364    int64_t nb_sectors;
 365    int mult_sectors;
 366    int identify_set;
 367    uint8_t identify_data[512];
 368    int drive_serial;
 369    char drive_serial_str[21];
 370    char drive_model_str[41];
 371    uint64_t wwn;
 372    /* ide regs */
 373    uint8_t feature;
 374    uint8_t error;
 375    uint32_t nsector;
 376    uint8_t sector;
 377    uint8_t lcyl;
 378    uint8_t hcyl;
 379    /* other part of tf for lba48 support */
 380    uint8_t hob_feature;
 381    uint8_t hob_nsector;
 382    uint8_t hob_sector;
 383    uint8_t hob_lcyl;
 384    uint8_t hob_hcyl;
 385
 386    uint8_t select;
 387    uint8_t status;
 388
 389    /* set for lba48 access */
 390    uint8_t lba48;
 391    BlockBackend *blk;
 392    char version[9];
 393    /* ATAPI specific */
 394    struct unreported_events events;
 395    uint8_t sense_key;
 396    uint8_t asc;
 397    bool tray_open;
 398    bool tray_locked;
 399    uint8_t cdrom_changed;
 400    int packet_transfer_size;
 401    int elementary_transfer_size;
 402    int32_t io_buffer_index;
 403    int lba;
 404    int cd_sector_size;
 405    int atapi_dma; /* true if dma is requested for the packet cmd */
 406    BlockAcctCookie acct;
 407    BlockAIOCB *pio_aiocb;
 408    struct iovec iov;
 409    QEMUIOVector qiov;
 410    QLIST_HEAD(, IDEBufferedRequest) buffered_requests;
 411    /* ATA DMA state */
 412    uint64_t io_buffer_offset;
 413    int32_t io_buffer_size;
 414    QEMUSGList sg;
 415    /* PIO transfer handling */
 416    int req_nb_sectors; /* number of sectors per interrupt */
 417    EndTransferFunc *end_transfer_func;
 418    uint8_t *data_ptr;
 419    uint8_t *data_end;
 420    uint8_t *io_buffer;
 421    /* PIO save/restore */
 422    int32_t io_buffer_total_len;
 423    int32_t cur_io_buffer_offset;
 424    int32_t cur_io_buffer_len;
 425    uint8_t end_transfer_fn_idx;
 426    QEMUTimer *sector_write_timer; /* only used for win2k install hack */
 427    uint32_t irq_count; /* counts IRQs when using win2k install hack */
 428    /* CF-ATA extended error */
 429    uint8_t ext_error;
 430    /* CF-ATA metadata storage */
 431    uint32_t mdata_size;
 432    uint8_t *mdata_storage;
 433    int media_changed;
 434    enum ide_dma_cmd dma_cmd;
 435    /* SMART */
 436    uint8_t smart_enabled;
 437    uint8_t smart_autosave;
 438    int smart_errors;
 439    uint8_t smart_selftest_count;
 440    uint8_t *smart_selftest_data;
 441    /* AHCI */
 442    int ncq_queues;
 443};
 444
 445struct IDEDMAOps {
 446    DMAStartFunc *start_dma;
 447    DMAVoidFunc *start_transfer;
 448    DMAInt32Func *prepare_buf;
 449    DMAu32Func *commit_buf;
 450    DMAIntFunc *rw_buf;
 451    DMAVoidFunc *restart;
 452    DMAVoidFunc *restart_dma;
 453    DMAStopFunc *set_inactive;
 454    DMAVoidFunc *cmd_done;
 455    DMAVoidFunc *reset;
 456};
 457
 458struct IDEDMA {
 459    const struct IDEDMAOps *ops;
 460    struct iovec iov;
 461    QEMUIOVector qiov;
 462    BlockAIOCB *aiocb;
 463};
 464
 465struct IDEBus {
 466    BusState qbus;
 467    IDEDevice *master;
 468    IDEDevice *slave;
 469    IDEState ifs[2];
 470    QEMUBH *bh;
 471
 472    int bus_id;
 473    int max_units;
 474    IDEDMA *dma;
 475    uint8_t unit;
 476    uint8_t cmd;
 477    qemu_irq irq;
 478
 479    int error_status;
 480    uint8_t retry_unit;
 481    int64_t retry_sector_num;
 482    uint32_t retry_nsector;
 483};
 484
 485#define TYPE_IDE_DEVICE "ide-device"
 486#define IDE_DEVICE(obj) \
 487     OBJECT_CHECK(IDEDevice, (obj), TYPE_IDE_DEVICE)
 488#define IDE_DEVICE_CLASS(klass) \
 489     OBJECT_CLASS_CHECK(IDEDeviceClass, (klass), TYPE_IDE_DEVICE)
 490#define IDE_DEVICE_GET_CLASS(obj) \
 491     OBJECT_GET_CLASS(IDEDeviceClass, (obj), TYPE_IDE_DEVICE)
 492
 493typedef struct IDEDeviceClass {
 494    DeviceClass parent_class;
 495    int (*init)(IDEDevice *dev);
 496} IDEDeviceClass;
 497
 498struct IDEDevice {
 499    DeviceState qdev;
 500    uint32_t unit;
 501    BlockConf conf;
 502    int chs_trans;
 503    char *version;
 504    char *serial;
 505    char *model;
 506    uint64_t wwn;
 507};
 508
 509/* These are used for the error_status field of IDEBus */
 510#define IDE_RETRY_MASK 0xf8
 511#define IDE_RETRY_DMA  0x08
 512#define IDE_RETRY_PIO  0x10
 513#define IDE_RETRY_ATAPI 0x20 /* reused IDE_RETRY_READ bit */
 514#define IDE_RETRY_READ  0x20
 515#define IDE_RETRY_FLUSH 0x40
 516#define IDE_RETRY_TRIM 0x80
 517#define IDE_RETRY_HBA  0x100
 518
 519#define IS_IDE_RETRY_DMA(_status) \
 520    ((_status) & IDE_RETRY_DMA)
 521
 522#define IS_IDE_RETRY_PIO(_status) \
 523    ((_status) & IDE_RETRY_PIO)
 524
 525/*
 526 * The method of the IDE_RETRY_ATAPI determination is to use a previously
 527 * impossible bit combination as a new status value.
 528 */
 529#define IS_IDE_RETRY_ATAPI(_status)   \
 530    (((_status) & IDE_RETRY_MASK) == IDE_RETRY_ATAPI)
 531
 532static inline uint8_t ide_dma_cmd_to_retry(uint8_t dma_cmd)
 533{
 534    switch (dma_cmd) {
 535    case IDE_DMA_READ:
 536        return IDE_RETRY_DMA | IDE_RETRY_READ;
 537    case IDE_DMA_WRITE:
 538        return IDE_RETRY_DMA;
 539    case IDE_DMA_TRIM:
 540        return IDE_RETRY_DMA | IDE_RETRY_TRIM;
 541    case IDE_DMA_ATAPI:
 542        return IDE_RETRY_ATAPI;
 543    default:
 544        break;
 545    }
 546    return 0;
 547}
 548
 549static inline IDEState *idebus_active_if(IDEBus *bus)
 550{
 551    return bus->ifs + bus->unit;
 552}
 553
 554static inline void ide_set_irq(IDEBus *bus)
 555{
 556    if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
 557        qemu_irq_raise(bus->irq);
 558    }
 559}
 560
 561/* hw/ide/core.c */
 562extern const VMStateDescription vmstate_ide_bus;
 563
 564#define VMSTATE_IDE_BUS(_field, _state)                          \
 565    VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)
 566
 567#define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num)              \
 568    VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)
 569
 570extern const VMStateDescription vmstate_ide_drive;
 571
 572#define VMSTATE_IDE_DRIVES(_field, _state) \
 573    VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)
 574
 575#define VMSTATE_IDE_DRIVE(_field, _state) \
 576    VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_drive, IDEState)
 577
 578void ide_bus_reset(IDEBus *bus);
 579int64_t ide_get_sector(IDEState *s);
 580void ide_set_sector(IDEState *s, int64_t sector_num);
 581
 582void ide_start_dma(IDEState *s, BlockCompletionFunc *cb);
 583void dma_buf_commit(IDEState *s, uint32_t tx_bytes);
 584void ide_dma_error(IDEState *s);
 585void ide_abort_command(IDEState *s);
 586
 587void ide_atapi_cmd_ok(IDEState *s);
 588void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 589void ide_atapi_dma_restart(IDEState *s);
 590void ide_atapi_io_error(IDEState *s, int ret);
 591
 592void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 593uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 594uint32_t ide_status_read(void *opaque, uint32_t addr);
 595void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 596void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 597uint32_t ide_data_readw(void *opaque, uint32_t addr);
 598void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 599uint32_t ide_data_readl(void *opaque, uint32_t addr);
 600
 601int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
 602                   const char *version, const char *serial, const char *model,
 603                   uint64_t wwn,
 604                   uint32_t cylinders, uint32_t heads, uint32_t secs,
 605                   int chs_trans);
 606void ide_init2(IDEBus *bus, qemu_irq irq);
 607void ide_init_ioport(IDEBus *bus, ISADevice *isa, int iobase, int iobase2);
 608void ide_register_restart_cb(IDEBus *bus);
 609
 610void ide_exec_cmd(IDEBus *bus, uint32_t val);
 611
 612void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
 613                        EndTransferFunc *end_transfer_func);
 614void ide_transfer_stop(IDEState *s);
 615void ide_set_inactive(IDEState *s, bool more);
 616BlockAIOCB *ide_issue_trim(
 617        int64_t offset, QEMUIOVector *qiov,
 618        BlockCompletionFunc *cb, void *cb_opaque, void *opaque);
 619BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
 620                               QEMUIOVector *iov, int nb_sectors,
 621                               BlockCompletionFunc *cb, void *opaque);
 622void ide_cancel_dma_sync(IDEState *s);
 623
 624/* hw/ide/atapi.c */
 625void ide_atapi_cmd(IDEState *s);
 626void ide_atapi_cmd_reply_end(IDEState *s);
 627
 628/* hw/ide/qdev.c */
 629void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
 630                 int bus_id, int max_units);
 631IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 632
 633int ide_handle_rw_error(IDEState *s, int error, int op);
 634
 635#endif /* HW_IDE_INTERNAL_H */
 636