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 "scsi/constants.h"
  15#include "qapi/error.h"
  16
  17/* debug IDE devices */
  18#define USE_DMA_CDROM
  19
  20typedef struct IDEBus IDEBus;
  21typedef struct IDEDevice IDEDevice;
  22typedef struct IDEState IDEState;
  23typedef struct IDEDMA IDEDMA;
  24typedef struct IDEDMAOps IDEDMAOps;
  25
  26#define TYPE_IDE_BUS "IDE"
  27#define IDE_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
  28
  29/* Bits of HD_STATUS */
  30#define ERR_STAT                0x01
  31#define INDEX_STAT              0x02
  32#define ECC_STAT                0x04    /* Corrected error */
  33#define DRQ_STAT                0x08
  34#define SEEK_STAT               0x10
  35#define SRV_STAT                0x10
  36#define WRERR_STAT              0x20
  37#define READY_STAT              0x40
  38#define BUSY_STAT               0x80
  39
  40/* Bits for HD_ERROR */
  41#define MARK_ERR                0x01    /* Bad address mark */
  42#define TRK0_ERR                0x02    /* couldn't find track 0 */
  43#define ABRT_ERR                0x04    /* Command aborted */
  44#define MCR_ERR                 0x08    /* media change request */
  45#define ID_ERR                  0x10    /* ID field not found */
  46#define MC_ERR                  0x20    /* media changed */
  47#define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  48#define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  49#define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  50
  51/* Bits of HD_NSECTOR */
  52#define CD                      0x01
  53#define IO                      0x02
  54#define REL                     0x04
  55#define TAG_MASK                0xf8
  56
  57#define IDE_CMD_RESET           0x04
  58#define IDE_CMD_DISABLE_IRQ     0x02
  59
  60/* ACS-2 T13/2015-D Table B.2 Command codes */
  61#define WIN_NOP                         0x00
  62/* reserved                             0x01..0x02 */
  63#define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
  64/* reserved                             0x04..0x05 */
  65#define WIN_DSM                         0x06
  66/* reserved                             0x07 */
  67#define WIN_DEVICE_RESET                0x08
  68/* reserved                             0x09..0x0a */
  69/* REQUEST SENSE DATA EXT               0x0B */
  70/* reserved                             0x0C..0x0F */
  71#define WIN_RECAL                       0x10 /* obsolete since ATA4 */
  72/* obsolete since ATA3, retired in ATA4 0x11..0x1F */
  73#define WIN_READ                        0x20 /* 28-Bit */
  74#define WIN_READ_ONCE                   0x21 /* 28-Bit w/o retries, obsolete since ATA5 */
  75/* obsolete since ATA4                  0x22..0x23 */
  76#define WIN_READ_EXT                    0x24 /* 48-Bit */
  77#define WIN_READDMA_EXT                 0x25 /* 48-Bit */
  78#define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit, obsolete since ACS2 */
  79#define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
  80/* reserved                             0x28 */
  81#define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
  82/* READ STREAM DMA EXT                  0x2A */
  83/* READ STREAM EXT                      0x2B */
  84/* reserved                             0x2C..0x2E */
  85/* READ LOG EXT                         0x2F */
  86#define WIN_WRITE                       0x30 /* 28-Bit */
  87#define WIN_WRITE_ONCE                  0x31 /* 28-Bit w/o retries, obsolete since ATA5 */
  88/* obsolete since ATA4                  0x32..0x33 */
  89#define WIN_WRITE_EXT                   0x34 /* 48-Bit */
  90#define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
  91#define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
  92#define WIN_SET_MAX_EXT                 0x37 /* 48-Bit, obsolete since ACS2 */
  93#define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
  94#define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
  95#define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
  96/* WRITE STREAM DMA EXT                 0x3A */
  97/* WRITE STREAM EXT                     0x3B */
  98#define WIN_WRITE_VERIFY                0x3C /* 28-Bit, obsolete since ATA4 */
  99/* WRITE DMA FUA EXT                    0x3D */
 100/* obsolete since ACS2                  0x3E */
 101/* WRITE LOG EXT                        0x3F */
 102#define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 103#define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - w/o retries, obsolete since ATA5 */
 104#define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 105/* reserved                             0x43..0x44 */
 106/* WRITE UNCORRECTABLE EXT              0x45 */
 107/* reserved                             0x46 */
 108/* READ LOG DMA EXT                     0x47 */
 109/* reserved                             0x48..0x4F */
 110/* obsolete since ATA4                  0x50 */
 111/* CONFIGURE STREAM                     0x51 */
 112/* reserved                             0x52..0x56 */
 113/* WRITE LOG DMA EXT                    0x57 */
 114/* reserved                             0x58..0x5A */
 115/* TRUSTED NON DATA                     0x5B */
 116/* TRUSTED RECEIVE                      0x5C */
 117/* TRUSTED RECEIVE DMA                  0x5D */
 118/* TRUSTED SEND                         0x5E */
 119/* TRUSTED SEND DMA                     0x5F */
 120/* READ FPDMA QUEUED                    0x60 */
 121/* WRITE FPDMA QUEUED                   0x61 */
 122/* reserved                             0x62->0x6F */
 123#define WIN_SEEK                        0x70 /* obsolete since ATA7 */
 124/* reserved                             0x71-0x7F */
 125/* vendor specific                      0x80-0x86 */
 126#define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 127/* vendor specific                      0x88-0x8F */
 128#define WIN_DIAGNOSE                    0x90
 129#define WIN_SPECIFY                     0x91 /* set drive geometry translation, obsolete since ATA6 */
 130#define WIN_DOWNLOAD_MICROCODE          0x92
 131/* DOWNLOAD MICROCODE DMA               0x93 */
 132#define WIN_STANDBYNOW2                 0x94 /* retired in ATA4 */
 133#define WIN_IDLEIMMEDIATE2              0x95 /* force drive to become "ready", retired in ATA4 */
 134#define WIN_STANDBY2                    0x96 /* retired in ATA4 */
 135#define WIN_SETIDLE2                    0x97 /* retired in ATA4 */
 136#define WIN_CHECKPOWERMODE2             0x98 /* retired in ATA4 */
 137#define WIN_SLEEPNOW2                   0x99 /* retired in ATA4 */
 138/* vendor specific                      0x9A */
 139/* reserved                             0x9B..0x9F */
 140#define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 141#define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 142#define WIN_QUEUED_SERVICE              0xA2 /* obsolete since ACS2 */
 143/* reserved                             0xA3..0xAF */
 144#define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 145/* Device Configuration Overlay         0xB1 */
 146/* reserved                             0xB2..0xB3 */
 147/* Sanitize Device                      0xB4 */
 148/* reserved                             0xB5 */
 149/* NV Cache                             0xB6 */
 150/* reserved for CFA                     0xB7..0xBB */
 151#define CFA_ACCESS_METADATA_STORAGE     0xB8
 152/* reserved                             0xBC..0xBF */
 153#define CFA_ERASE_SECTORS               0xC0 /* microdrives implement as NOP */
 154/* vendor specific                      0xC1..0xC3 */
 155#define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 156#define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 157#define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 158#define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers, obsolete since ACS2 */
 159#define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 160#define WIN_READDMA_ONCE                0xC9 /* 28-Bit - w/o retries, obsolete since ATA5 */
 161#define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 162#define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - w/o retries, obsolete since ATA5 */
 163#define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers, obsolete since ACS2 */
 164#define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 165/* WRITE MULTIPLE FUA EXT               0xCE */
 166/* reserved                             0xCF..0xDO */
 167/* CHECK MEDIA CARD TYPE                0xD1 */
 168/* reserved for media card pass through 0xD2..0xD4 */
 169/* reserved                             0xD5..0xD9 */
 170#define WIN_GETMEDIASTATUS              0xDA /* obsolete since ATA8 */
 171/* obsolete since ATA3, retired in ATA4 0xDB..0xDD */
 172#define WIN_DOORLOCK                    0xDE /* lock door on removable drives, obsolete since ATA8 */
 173#define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives, obsolete since ATA8 */
 174#define WIN_STANDBYNOW1                 0xE0
 175#define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 176#define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 177#define WIN_SETIDLE1                    0xE3
 178#define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 179#define WIN_CHECKPOWERMODE1             0xE5
 180#define WIN_SLEEPNOW1                   0xE6
 181#define WIN_FLUSH_CACHE                 0xE7
 182#define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 183/* READ BUFFER DMA                      0xE9 */
 184#define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 185/* WRITE BUFFER DMA                     0xEB */
 186#define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 187#define WIN_MEDIAEJECT                  0xED /* obsolete since ATA8 */
 188/* obsolete since ATA4                  0xEE */
 189#define WIN_SETFEATURES                 0xEF /* set special drive features */
 190#define IBM_SENSE_CONDITION             0xF0 /* measure disk temperature, vendor specific */
 191#define WIN_SECURITY_SET_PASS           0xF1
 192#define WIN_SECURITY_UNLOCK             0xF2
 193#define WIN_SECURITY_ERASE_PREPARE      0xF3
 194#define WIN_SECURITY_ERASE_UNIT         0xF4
 195#define WIN_SECURITY_FREEZE_LOCK        0xF5
 196#define CFA_WEAR_LEVEL                  0xF5 /* microdrives implement as NOP; not specified in T13! */
 197#define WIN_SECURITY_DISABLE            0xF6
 198/* vendor specific                      0xF7 */
 199#define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 200#define WIN_SET_MAX                     0xF9
 201/* vendor specific                      0xFA..0xFF */
 202
 203/* set to 1 set disable mult support */
 204#define MAX_MULT_SECTORS 16
 205
 206#define IDE_DMA_BUF_SECTORS 256
 207
 208/* feature values for Data Set Management */
 209#define DSM_TRIM                        0x01
 210
 211#if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
 212#error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
 213#endif
 214
 215/* ATAPI defines */
 216
 217#define ATAPI_PACKET_SIZE 12
 218
 219/* The generic packet command opcodes for CD/DVD Logical Units,
 220 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
 221#define GPCMD_BLANK                         0xa1
 222#define GPCMD_CLOSE_TRACK                   0x5b
 223#define GPCMD_FLUSH_CACHE                   0x35
 224#define GPCMD_FORMAT_UNIT                   0x04
 225#define GPCMD_GET_CONFIGURATION             0x46
 226#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
 227#define GPCMD_GET_PERFORMANCE               0xac
 228#define GPCMD_INQUIRY                       0x12
 229#define GPCMD_LOAD_UNLOAD                   0xa6
 230#define GPCMD_MECHANISM_STATUS              0xbd
 231#define GPCMD_MODE_SELECT_10                0x55
 232#define GPCMD_MODE_SENSE_10                 0x5a
 233#define GPCMD_PAUSE_RESUME                  0x4b
 234#define GPCMD_PLAY_AUDIO_10                 0x45
 235#define GPCMD_PLAY_AUDIO_MSF                0x47
 236#define GPCMD_PLAY_AUDIO_TI                 0x48
 237#define GPCMD_PLAY_CD                       0xbc
 238#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
 239#define GPCMD_READ_10                       0x28
 240#define GPCMD_READ_12                       0xa8
 241#define GPCMD_READ_CDVD_CAPACITY            0x25
 242#define GPCMD_READ_CD                       0xbe
 243#define GPCMD_READ_CD_MSF                   0xb9
 244#define GPCMD_READ_DISC_INFO                0x51
 245#define GPCMD_READ_DVD_STRUCTURE            0xad
 246#define GPCMD_READ_FORMAT_CAPACITIES        0x23
 247#define GPCMD_READ_HEADER                   0x44
 248#define GPCMD_READ_TRACK_RZONE_INFO         0x52
 249#define GPCMD_READ_SUBCHANNEL               0x42
 250#define GPCMD_READ_TOC_PMA_ATIP             0x43
 251#define GPCMD_REPAIR_RZONE_TRACK            0x58
 252#define GPCMD_REPORT_KEY                    0xa4
 253#define GPCMD_REQUEST_SENSE                 0x03
 254#define GPCMD_RESERVE_RZONE_TRACK           0x53
 255#define GPCMD_SCAN                          0xba
 256#define GPCMD_SEEK                          0x2b
 257#define GPCMD_SEND_DVD_STRUCTURE            0xad
 258#define GPCMD_SEND_EVENT                    0xa2
 259#define GPCMD_SEND_KEY                      0xa3
 260#define GPCMD_SEND_OPC                      0x54
 261#define GPCMD_SET_READ_AHEAD                0xa7
 262#define GPCMD_SET_STREAMING                 0xb6
 263#define GPCMD_START_STOP_UNIT               0x1b
 264#define GPCMD_STOP_PLAY_SCAN                0x4e
 265#define GPCMD_TEST_UNIT_READY               0x00
 266#define GPCMD_VERIFY_10                     0x2f
 267#define GPCMD_WRITE_10                      0x2a
 268#define GPCMD_WRITE_AND_VERIFY_10           0x2e
 269/* This is listed as optional in ATAPI 2.6, but is (curiously)
 270 * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
 271 * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
 272 * drives support it. */
 273#define GPCMD_SET_SPEED                     0xbb
 274/* This seems to be a SCSI specific CD-ROM opcode
 275 * to play data at track/index */
 276#define GPCMD_PLAYAUDIO_TI                  0x48
 277/*
 278 * From MS Media Status Notification Support Specification. For
 279 * older drives only.
 280 */
 281#define GPCMD_GET_MEDIA_STATUS              0xda
 282#define GPCMD_MODE_SENSE_6                  0x1a
 283
 284#define ATAPI_INT_REASON_CD             0x01 /* 0 = data transfer */
 285#define ATAPI_INT_REASON_IO             0x02 /* 1 = transfer to the host */
 286#define ATAPI_INT_REASON_REL            0x04
 287#define ATAPI_INT_REASON_TAG            0xf8
 288
 289/* same constants as bochs */
 290#define ASC_NO_SEEK_COMPLETE                 0x02
 291#define ASC_ILLEGAL_OPCODE                   0x20
 292#define ASC_LOGICAL_BLOCK_OOR                0x21
 293#define ASC_INV_FIELD_IN_CMD_PACKET          0x24
 294#define ASC_MEDIUM_MAY_HAVE_CHANGED          0x28
 295#define ASC_INCOMPATIBLE_FORMAT              0x30
 296#define ASC_MEDIUM_NOT_PRESENT               0x3a
 297#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED  0x39
 298#define ASC_DATA_PHASE_ERROR                 0x4b
 299#define ASC_MEDIA_REMOVAL_PREVENTED          0x53
 300
 301#define CFA_NO_ERROR            0x00
 302#define CFA_MISC_ERROR          0x09
 303#define CFA_INVALID_COMMAND     0x20
 304#define CFA_INVALID_ADDRESS     0x21
 305#define CFA_ADDRESS_OVERFLOW    0x2f
 306
 307#define SMART_READ_DATA       0xd0
 308#define SMART_READ_THRESH     0xd1
 309#define SMART_ATTR_AUTOSAVE   0xd2
 310#define SMART_SAVE_ATTR       0xd3
 311#define SMART_EXECUTE_OFFLINE 0xd4
 312#define SMART_READ_LOG        0xd5
 313#define SMART_WRITE_LOG       0xd6
 314#define SMART_ENABLE          0xd8
 315#define SMART_DISABLE         0xd9
 316#define SMART_STATUS          0xda
 317
 318typedef enum { IDE_HD, IDE_CD, IDE_CFATA } IDEDriveKind;
 319
 320typedef void EndTransferFunc(IDEState *);
 321
 322typedef void DMAStartFunc(IDEDMA *, IDEState *, BlockCompletionFunc *);
 323typedef void DMAVoidFunc(IDEDMA *);
 324typedef int DMAIntFunc(IDEDMA *, int);
 325typedef int32_t DMAInt32Func(IDEDMA *, int32_t len);
 326typedef void DMAu32Func(IDEDMA *, uint32_t);
 327typedef void DMAStopFunc(IDEDMA *, bool);
 328typedef void DMARestartFunc(void *, int, RunState);
 329
 330struct unreported_events {
 331    bool eject_request;
 332    bool new_media;
 333};
 334
 335enum ide_dma_cmd {
 336    IDE_DMA_READ = 0,
 337    IDE_DMA_WRITE,
 338    IDE_DMA_TRIM,
 339    IDE_DMA_ATAPI,
 340    IDE_DMA__COUNT
 341};
 342
 343extern const char *IDE_DMA_CMD_lookup[IDE_DMA__COUNT];
 344
 345#define ide_cmd_is_read(s) \
 346        ((s)->dma_cmd == IDE_DMA_READ)
 347
 348typedef struct IDEBufferedRequest {
 349    QLIST_ENTRY(IDEBufferedRequest) list;
 350    struct iovec iov;
 351    QEMUIOVector qiov;
 352    QEMUIOVector *original_qiov;
 353    BlockCompletionFunc *original_cb;
 354    void *original_opaque;
 355    bool orphaned;
 356} IDEBufferedRequest;
 357
 358/* NOTE: IDEState represents in fact one drive */
 359struct IDEState {
 360    IDEBus *bus;
 361    uint8_t unit;
 362    /* ide config */
 363    IDEDriveKind drive_kind;
 364    int cylinders, heads, sectors, chs_trans;
 365    int64_t nb_sectors;
 366    int mult_sectors;
 367    int identify_set;
 368    uint8_t identify_data[512];
 369    int drive_serial;
 370    char drive_serial_str[21];
 371    char drive_model_str[41];
 372    uint64_t wwn;
 373    /* ide regs */
 374    uint8_t feature;
 375    uint8_t error;
 376    uint32_t nsector;
 377    uint8_t sector;
 378    uint8_t lcyl;
 379    uint8_t hcyl;
 380    /* other part of tf for lba48 support */
 381    uint8_t hob_feature;
 382    uint8_t hob_nsector;
 383    uint8_t hob_sector;
 384    uint8_t hob_lcyl;
 385    uint8_t hob_hcyl;
 386
 387    uint8_t select;
 388    uint8_t status;
 389
 390    /* set for lba48 access */
 391    uint8_t lba48;
 392    BlockBackend *blk;
 393    char version[9];
 394    /* ATAPI specific */
 395    struct unreported_events events;
 396    uint8_t sense_key;
 397    uint8_t asc;
 398    bool tray_open;
 399    bool tray_locked;
 400    uint8_t cdrom_changed;
 401    int packet_transfer_size;
 402    int elementary_transfer_size;
 403    int32_t io_buffer_index;
 404    int lba;
 405    int cd_sector_size;
 406    int atapi_dma; /* true if dma is requested for the packet cmd */
 407    BlockAcctCookie acct;
 408    BlockAIOCB *pio_aiocb;
 409    struct iovec iov;
 410    QEMUIOVector qiov;
 411    QLIST_HEAD(, IDEBufferedRequest) buffered_requests;
 412    /* ATA DMA state */
 413    uint64_t io_buffer_offset;
 414    int32_t 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    int32_t cur_io_buffer_offset;
 425    int32_t 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    enum ide_dma_cmd dma_cmd;
 436    /* SMART */
 437    uint8_t smart_enabled;
 438    uint8_t smart_autosave;
 439    int smart_errors;
 440    uint8_t smart_selftest_count;
 441    uint8_t *smart_selftest_data;
 442    /* AHCI */
 443    int ncq_queues;
 444};
 445
 446struct IDEDMAOps {
 447    DMAStartFunc *start_dma;
 448    DMAVoidFunc *start_transfer;
 449    DMAInt32Func *prepare_buf;
 450    DMAu32Func *commit_buf;
 451    DMAIntFunc *rw_buf;
 452    DMAVoidFunc *restart;
 453    DMAVoidFunc *restart_dma;
 454    DMAStopFunc *set_inactive;
 455    DMAVoidFunc *cmd_done;
 456    DMAVoidFunc *reset;
 457};
 458
 459struct IDEDMA {
 460    const struct IDEDMAOps *ops;
 461    struct iovec iov;
 462    QEMUIOVector qiov;
 463    BlockAIOCB *aiocb;
 464};
 465
 466struct IDEBus {
 467    BusState qbus;
 468    IDEDevice *master;
 469    IDEDevice *slave;
 470    IDEState ifs[2];
 471    QEMUBH *bh;
 472
 473    int bus_id;
 474    int max_units;
 475    IDEDMA *dma;
 476    uint8_t unit;
 477    uint8_t cmd;
 478    qemu_irq irq;
 479
 480    int error_status;
 481    uint8_t retry_unit;
 482    int64_t retry_sector_num;
 483    uint32_t retry_nsector;
 484    PortioList portio_list;
 485    PortioList portio2_list;
 486    VMChangeStateEntry *vmstate;
 487};
 488
 489#define TYPE_IDE_DEVICE "ide-device"
 490#define IDE_DEVICE(obj) \
 491     OBJECT_CHECK(IDEDevice, (obj), TYPE_IDE_DEVICE)
 492#define IDE_DEVICE_CLASS(klass) \
 493     OBJECT_CLASS_CHECK(IDEDeviceClass, (klass), TYPE_IDE_DEVICE)
 494#define IDE_DEVICE_GET_CLASS(obj) \
 495     OBJECT_GET_CLASS(IDEDeviceClass, (obj), TYPE_IDE_DEVICE)
 496
 497typedef struct IDEDeviceClass {
 498    DeviceClass parent_class;
 499    void (*realize)(IDEDevice *dev, Error **errp);
 500} IDEDeviceClass;
 501
 502struct IDEDevice {
 503    DeviceState qdev;
 504    uint32_t unit;
 505    BlockConf conf;
 506    int chs_trans;
 507    char *version;
 508    char *serial;
 509    char *model;
 510    uint64_t wwn;
 511    /*
 512     * 0x0000        - rotation rate not reported
 513     * 0x0001        - non-rotating medium (SSD)
 514     * 0x0002-0x0400 - reserved
 515     * 0x0401-0xffe  - rotations per minute
 516     * 0xffff        - reserved
 517     */
 518    uint16_t rotation_rate;
 519};
 520
 521/* These are used for the error_status field of IDEBus */
 522#define IDE_RETRY_MASK 0xf8
 523#define IDE_RETRY_DMA  0x08
 524#define IDE_RETRY_PIO  0x10
 525#define IDE_RETRY_ATAPI 0x20 /* reused IDE_RETRY_READ bit */
 526#define IDE_RETRY_READ  0x20
 527#define IDE_RETRY_FLUSH 0x40
 528#define IDE_RETRY_TRIM 0x80
 529#define IDE_RETRY_HBA  0x100
 530
 531#define IS_IDE_RETRY_DMA(_status) \
 532    ((_status) & IDE_RETRY_DMA)
 533
 534#define IS_IDE_RETRY_PIO(_status) \
 535    ((_status) & IDE_RETRY_PIO)
 536
 537/*
 538 * The method of the IDE_RETRY_ATAPI determination is to use a previously
 539 * impossible bit combination as a new status value.
 540 */
 541#define IS_IDE_RETRY_ATAPI(_status)   \
 542    (((_status) & IDE_RETRY_MASK) == IDE_RETRY_ATAPI)
 543
 544static inline uint8_t ide_dma_cmd_to_retry(uint8_t dma_cmd)
 545{
 546    switch (dma_cmd) {
 547    case IDE_DMA_READ:
 548        return IDE_RETRY_DMA | IDE_RETRY_READ;
 549    case IDE_DMA_WRITE:
 550        return IDE_RETRY_DMA;
 551    case IDE_DMA_TRIM:
 552        return IDE_RETRY_DMA | IDE_RETRY_TRIM;
 553    case IDE_DMA_ATAPI:
 554        return IDE_RETRY_ATAPI;
 555    default:
 556        break;
 557    }
 558    return 0;
 559}
 560
 561static inline IDEState *idebus_active_if(IDEBus *bus)
 562{
 563    return bus->ifs + bus->unit;
 564}
 565
 566static inline void ide_set_irq(IDEBus *bus)
 567{
 568    if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
 569        qemu_irq_raise(bus->irq);
 570    }
 571}
 572
 573/* hw/ide/core.c */
 574extern const VMStateDescription vmstate_ide_bus;
 575
 576#define VMSTATE_IDE_BUS(_field, _state)                          \
 577    VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)
 578
 579#define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num)              \
 580    VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)
 581
 582extern const VMStateDescription vmstate_ide_drive;
 583
 584#define VMSTATE_IDE_DRIVES(_field, _state) \
 585    VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)
 586
 587#define VMSTATE_IDE_DRIVE(_field, _state) \
 588    VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_drive, IDEState)
 589
 590void ide_bus_reset(IDEBus *bus);
 591int64_t ide_get_sector(IDEState *s);
 592void ide_set_sector(IDEState *s, int64_t sector_num);
 593
 594void ide_start_dma(IDEState *s, BlockCompletionFunc *cb);
 595void dma_buf_commit(IDEState *s, uint32_t tx_bytes);
 596void ide_dma_error(IDEState *s);
 597void ide_abort_command(IDEState *s);
 598
 599void ide_atapi_cmd_ok(IDEState *s);
 600void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
 601void ide_atapi_dma_restart(IDEState *s);
 602void ide_atapi_io_error(IDEState *s, int ret);
 603
 604void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 605uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
 606uint32_t ide_status_read(void *opaque, uint32_t addr);
 607void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
 608void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
 609uint32_t ide_data_readw(void *opaque, uint32_t addr);
 610void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
 611uint32_t ide_data_readl(void *opaque, uint32_t addr);
 612
 613int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
 614                   const char *version, const char *serial, const char *model,
 615                   uint64_t wwn,
 616                   uint32_t cylinders, uint32_t heads, uint32_t secs,
 617                   int chs_trans, Error **errp);
 618void ide_init2(IDEBus *bus, qemu_irq irq);
 619void ide_exit(IDEState *s);
 620void ide_init_ioport(IDEBus *bus, ISADevice *isa, int iobase, int iobase2);
 621void ide_register_restart_cb(IDEBus *bus);
 622
 623void ide_exec_cmd(IDEBus *bus, uint32_t val);
 624
 625void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
 626                        EndTransferFunc *end_transfer_func);
 627void ide_transfer_stop(IDEState *s);
 628void ide_set_inactive(IDEState *s, bool more);
 629BlockAIOCB *ide_issue_trim(
 630        int64_t offset, QEMUIOVector *qiov,
 631        BlockCompletionFunc *cb, void *cb_opaque, void *opaque);
 632BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
 633                               QEMUIOVector *iov, int nb_sectors,
 634                               BlockCompletionFunc *cb, void *opaque);
 635void ide_cancel_dma_sync(IDEState *s);
 636
 637/* hw/ide/atapi.c */
 638void ide_atapi_cmd(IDEState *s);
 639void ide_atapi_cmd_reply_end(IDEState *s);
 640
 641/* hw/ide/qdev.c */
 642void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
 643                 int bus_id, int max_units);
 644IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 645
 646int ide_handle_rw_error(IDEState *s, int error, int op);
 647
 648#endif /* HW_IDE_INTERNAL_H */
 649