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qemu-irix/hw/ide/internal.h

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#ifndef HW_IDE_INTERNAL_H
#define HW_IDE_INTERNAL_H
/*
* QEMU IDE Emulation -- internal header file
* only files in hw/ide/ are supposed to include this file.
* non-internal declarations are in hw/ide.h
*/
#include <hw/ide.h>
#include "block_int.h"
/* debug IDE devices */
//#define DEBUG_IDE
//#define DEBUG_IDE_ATAPI
//#define DEBUG_AIO
#define USE_DMA_CDROM
typedef struct IDEBus IDEBus;
typedef struct IDEDevice IDEDevice;
typedef struct IDEDeviceInfo IDEDeviceInfo;
typedef struct IDEState IDEState;
typedef struct BMDMAState BMDMAState;
/* Bits of HD_STATUS */
#define ERR_STAT 0x01
#define INDEX_STAT 0x02
#define ECC_STAT 0x04 /* Corrected error */
#define DRQ_STAT 0x08
#define SEEK_STAT 0x10
#define SRV_STAT 0x10
#define WRERR_STAT 0x20
#define READY_STAT 0x40
#define BUSY_STAT 0x80
/* Bits for HD_ERROR */
#define MARK_ERR 0x01 /* Bad address mark */
#define TRK0_ERR 0x02 /* couldn't find track 0 */
#define ABRT_ERR 0x04 /* Command aborted */
#define MCR_ERR 0x08 /* media change request */
#define ID_ERR 0x10 /* ID field not found */
#define MC_ERR 0x20 /* media changed */
#define ECC_ERR 0x40 /* Uncorrectable ECC error */
#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
/* Bits of HD_NSECTOR */
#define CD 0x01
#define IO 0x02
#define REL 0x04
#define TAG_MASK 0xf8
#define IDE_CMD_RESET 0x04
#define IDE_CMD_DISABLE_IRQ 0x02
/* ATA/ATAPI Commands pre T13 Spec */
#define WIN_NOP 0x00
/*
* 0x01->0x02 Reserved
*/
#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
/*
* 0x04->0x07 Reserved
*/
#define WIN_SRST 0x08 /* ATAPI soft reset command */
#define WIN_DEVICE_RESET 0x08
/*
* 0x09->0x0F Reserved
*/
#define WIN_RECAL 0x10
#define WIN_RESTORE WIN_RECAL
/*
* 0x10->0x1F Reserved
*/
#define WIN_READ 0x20 /* 28-Bit */
#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
#define WIN_READ_LONG 0x22 /* 28-Bit */
#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
#define WIN_READ_EXT 0x24 /* 48-Bit */
#define WIN_READDMA_EXT 0x25 /* 48-Bit */
#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
/*
* 0x28
*/
#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
/*
* 0x2A->0x2F Reserved
*/
#define WIN_WRITE 0x30 /* 28-Bit */
#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
#define WIN_WRITE_LONG 0x32 /* 28-Bit */
#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
#define WIN_WRITE_EXT 0x34 /* 48-Bit */
#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
/*
* 0x3A->0x3B Reserved
*/
#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
/*
* 0x3D->0x3F Reserved
*/
#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
#define WIN_VERIFY_EXT 0x42 /* 48-Bit */
/*
* 0x43->0x4F Reserved
*/
#define WIN_FORMAT 0x50
/*
* 0x51->0x5F Reserved
*/
#define WIN_INIT 0x60
/*
* 0x61->0x5F Reserved
*/
#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
#define WIN_DIAGNOSE 0x90
#define WIN_SPECIFY 0x91 /* set drive geometry translation */
#define WIN_DOWNLOAD_MICROCODE 0x92
#define WIN_STANDBYNOW2 0x94
#define CFA_IDLEIMMEDIATE 0x95 /* force drive to become "ready" */
#define WIN_STANDBY2 0x96
#define WIN_SETIDLE2 0x97
#define WIN_CHECKPOWERMODE2 0x98
#define WIN_SLEEPNOW2 0x99
/*
* 0x9A VENDOR
*/
#define WIN_PACKETCMD 0xA0 /* Send a packet command. */
#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
#define WIN_QUEUED_SERVICE 0xA2
#define WIN_SMART 0xB0 /* self-monitoring and reporting */
#define CFA_ACCESS_METADATA_STORAGE 0xB8
#define CFA_ERASE_SECTORS 0xC0 /* microdrives implement as NOP */
#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
#define WIN_GETMEDIASTATUS 0xDA
#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
#define WIN_POSTBOOT 0xDC
#define WIN_PREBOOT 0xDD
#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
#define WIN_STANDBYNOW1 0xE0
#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
#define WIN_SETIDLE1 0xE3
#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
#define WIN_CHECKPOWERMODE1 0xE5
#define WIN_SLEEPNOW1 0xE6
#define WIN_FLUSH_CACHE 0xE7
#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
/* SET_FEATURES 0x22 or 0xDD */
#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
#define WIN_MEDIAEJECT 0xED
#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
#define WIN_SETFEATURES 0xEF /* set special drive features */
#define EXABYTE_ENABLE_NEST 0xF0
#define IBM_SENSE_CONDITION 0xF0 /* measure disk temperature */
#define WIN_SECURITY_SET_PASS 0xF1
#define WIN_SECURITY_UNLOCK 0xF2
#define WIN_SECURITY_ERASE_PREPARE 0xF3
#define WIN_SECURITY_ERASE_UNIT 0xF4
#define WIN_SECURITY_FREEZE_LOCK 0xF5
#define CFA_WEAR_LEVEL 0xF5 /* microdrives implement as NOP */
#define WIN_SECURITY_DISABLE 0xF6
#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
#define WIN_SET_MAX 0xF9
#define DISABLE_SEAGATE 0xFB
/* set to 1 set disable mult support */
#define MAX_MULT_SECTORS 16
#define IDE_DMA_BUF_SECTORS 256
#if (IDE_DMA_BUF_SECTORS < MAX_MULT_SECTORS)
#error "IDE_DMA_BUF_SECTORS must be bigger or equal to MAX_MULT_SECTORS"
#endif
/* ATAPI defines */
#define ATAPI_PACKET_SIZE 12
/* The generic packet command opcodes for CD/DVD Logical Units,
* From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
#define GPCMD_BLANK 0xa1
#define GPCMD_CLOSE_TRACK 0x5b
#define GPCMD_FLUSH_CACHE 0x35
#define GPCMD_FORMAT_UNIT 0x04
#define GPCMD_GET_CONFIGURATION 0x46
#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
#define GPCMD_GET_PERFORMANCE 0xac
#define GPCMD_INQUIRY 0x12
#define GPCMD_LOAD_UNLOAD 0xa6
#define GPCMD_MECHANISM_STATUS 0xbd
#define GPCMD_MODE_SELECT_10 0x55
#define GPCMD_MODE_SENSE_10 0x5a
#define GPCMD_PAUSE_RESUME 0x4b
#define GPCMD_PLAY_AUDIO_10 0x45
#define GPCMD_PLAY_AUDIO_MSF 0x47
#define GPCMD_PLAY_AUDIO_TI 0x48
#define GPCMD_PLAY_CD 0xbc
#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
#define GPCMD_READ_10 0x28
#define GPCMD_READ_12 0xa8
#define GPCMD_READ_CDVD_CAPACITY 0x25
#define GPCMD_READ_CD 0xbe
#define GPCMD_READ_CD_MSF 0xb9
#define GPCMD_READ_DISC_INFO 0x51
#define GPCMD_READ_DVD_STRUCTURE 0xad
#define GPCMD_READ_FORMAT_CAPACITIES 0x23
#define GPCMD_READ_HEADER 0x44
#define GPCMD_READ_TRACK_RZONE_INFO 0x52
#define GPCMD_READ_SUBCHANNEL 0x42
#define GPCMD_READ_TOC_PMA_ATIP 0x43
#define GPCMD_REPAIR_RZONE_TRACK 0x58
#define GPCMD_REPORT_KEY 0xa4
#define GPCMD_REQUEST_SENSE 0x03
#define GPCMD_RESERVE_RZONE_TRACK 0x53
#define GPCMD_SCAN 0xba
#define GPCMD_SEEK 0x2b
#define GPCMD_SEND_DVD_STRUCTURE 0xad
#define GPCMD_SEND_EVENT 0xa2
#define GPCMD_SEND_KEY 0xa3
#define GPCMD_SEND_OPC 0x54
#define GPCMD_SET_READ_AHEAD 0xa7
#define GPCMD_SET_STREAMING 0xb6
#define GPCMD_START_STOP_UNIT 0x1b
#define GPCMD_STOP_PLAY_SCAN 0x4e
#define GPCMD_TEST_UNIT_READY 0x00
#define GPCMD_VERIFY_10 0x2f
#define GPCMD_WRITE_10 0x2a
#define GPCMD_WRITE_AND_VERIFY_10 0x2e
/* This is listed as optional in ATAPI 2.6, but is (curiously)
* missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
* Table 377 as an MMC command for SCSi devices though... Most ATAPI
* drives support it. */
#define GPCMD_SET_SPEED 0xbb
/* This seems to be a SCSI specific CD-ROM opcode
* to play data at track/index */
#define GPCMD_PLAYAUDIO_TI 0x48
/*
* From MS Media Status Notification Support Specification. For
* older drives only.
*/
#define GPCMD_GET_MEDIA_STATUS 0xda
#define GPCMD_MODE_SENSE_6 0x1a
/* Mode page codes for mode sense/set */
#define GPMODE_R_W_ERROR_PAGE 0x01
#define GPMODE_WRITE_PARMS_PAGE 0x05
#define GPMODE_AUDIO_CTL_PAGE 0x0e
#define GPMODE_POWER_PAGE 0x1a
#define GPMODE_FAULT_FAIL_PAGE 0x1c
#define GPMODE_TO_PROTECT_PAGE 0x1d
#define GPMODE_CAPABILITIES_PAGE 0x2a
#define GPMODE_ALL_PAGES 0x3f
/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
* of MODE_SENSE_POWER_PAGE */
#define GPMODE_CDROM_PAGE 0x0d
/*
* Based on values from <linux/cdrom.h> but extending CD_MINS
* to the maximum common size allowed by the Orange's Book ATIP
*
* 90 and 99 min CDs are also available but using them as the
* upper limit reduces the effectiveness of the heuristic to
* detect DVDs burned to less than 25% of their maximum capacity
*/
/* Some generally useful CD-ROM information */
#define CD_MINS 80 /* max. minutes per CD */
#define CD_SECS 60 /* seconds per minute */
#define CD_FRAMES 75 /* frames per second */
#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
#define CD_MAX_BYTES (CD_MINS * CD_SECS * CD_FRAMES * CD_FRAMESIZE)
#define CD_MAX_SECTORS (CD_MAX_BYTES / 512)
/*
* The MMC values are not IDE specific and might need to be moved
* to a common header if they are also needed for the SCSI emulation
*/
/* Profile list from MMC-6 revision 1 table 91 */
#define MMC_PROFILE_NONE 0x0000
#define MMC_PROFILE_CD_ROM 0x0008
#define MMC_PROFILE_CD_R 0x0009
#define MMC_PROFILE_CD_RW 0x000A
#define MMC_PROFILE_DVD_ROM 0x0010
#define MMC_PROFILE_DVD_R_SR 0x0011
#define MMC_PROFILE_DVD_RAM 0x0012
#define MMC_PROFILE_DVD_RW_RO 0x0013
#define MMC_PROFILE_DVD_RW_SR 0x0014
#define MMC_PROFILE_DVD_R_DL_SR 0x0015
#define MMC_PROFILE_DVD_R_DL_JR 0x0016
#define MMC_PROFILE_DVD_RW_DL 0x0017
#define MMC_PROFILE_DVD_DDR 0x0018
#define MMC_PROFILE_DVD_PLUS_RW 0x001A
#define MMC_PROFILE_DVD_PLUS_R 0x001B
#define MMC_PROFILE_DVD_PLUS_RW_DL 0x002A
#define MMC_PROFILE_DVD_PLUS_R_DL 0x002B
#define MMC_PROFILE_BD_ROM 0x0040
#define MMC_PROFILE_BD_R_SRM 0x0041
#define MMC_PROFILE_BD_R_RRM 0x0042
#define MMC_PROFILE_BD_RE 0x0043
#define MMC_PROFILE_HDDVD_ROM 0x0050
#define MMC_PROFILE_HDDVD_R 0x0051
#define MMC_PROFILE_HDDVD_RAM 0x0052
#define MMC_PROFILE_HDDVD_RW 0x0053
#define MMC_PROFILE_HDDVD_R_DL 0x0058
#define MMC_PROFILE_HDDVD_RW_DL 0x005A
#define MMC_PROFILE_INVALID 0xFFFF
#define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */
#define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */
#define ATAPI_INT_REASON_REL 0x04
#define ATAPI_INT_REASON_TAG 0xf8
/* same constants as bochs */
#define ASC_ILLEGAL_OPCODE 0x20
#define ASC_LOGICAL_BLOCK_OOR 0x21
#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
#define ASC_MEDIUM_MAY_HAVE_CHANGED 0x28
#define ASC_INCOMPATIBLE_FORMAT 0x30
#define ASC_MEDIUM_NOT_PRESENT 0x3a
#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39
#define ASC_MEDIA_REMOVAL_PREVENTED 0x53
#define CFA_NO_ERROR 0x00
#define CFA_MISC_ERROR 0x09
#define CFA_INVALID_COMMAND 0x20
#define CFA_INVALID_ADDRESS 0x21
#define CFA_ADDRESS_OVERFLOW 0x2f
#define SENSE_NONE 0
#define SENSE_NOT_READY 2
#define SENSE_ILLEGAL_REQUEST 5
#define SENSE_UNIT_ATTENTION 6
#define SMART_READ_DATA 0xd0
#define SMART_READ_THRESH 0xd1
#define SMART_ATTR_AUTOSAVE 0xd2
#define SMART_SAVE_ATTR 0xd3
#define SMART_EXECUTE_OFFLINE 0xd4
#define SMART_READ_LOG 0xd5
#define SMART_WRITE_LOG 0xd6
#define SMART_ENABLE 0xd8
#define SMART_DISABLE 0xd9
#define SMART_STATUS 0xda
typedef void EndTransferFunc(IDEState *);
/* NOTE: IDEState represents in fact one drive */
struct IDEState {
IDEBus *bus;
uint8_t unit;
/* ide config */
int is_cdrom;
int is_cf;
int cylinders, heads, sectors;
int64_t nb_sectors;
int mult_sectors;
int identify_set;
uint8_t identify_data[512];
int drive_serial;
char drive_serial_str[21];
/* ide regs */
uint8_t feature;
uint8_t error;
uint32_t nsector;
uint8_t sector;
uint8_t lcyl;
uint8_t hcyl;
/* other part of tf for lba48 support */
uint8_t hob_feature;
uint8_t hob_nsector;
uint8_t hob_sector;
uint8_t hob_lcyl;
uint8_t hob_hcyl;
uint8_t select;
uint8_t status;
/* set for lba48 access */
uint8_t lba48;
BlockDriverState *bs;
BlockConf *conf;
char version[9];
/* ATAPI specific */
uint8_t sense_key;
uint8_t asc;
uint8_t cdrom_changed;
int packet_transfer_size;
int elementary_transfer_size;
int io_buffer_index;
int lba;
int cd_sector_size;
int atapi_dma; /* true if dma is requested for the packet cmd */
/* ATA DMA state */
int io_buffer_size;
QEMUSGList sg;
/* PIO transfer handling */
int req_nb_sectors; /* number of sectors per interrupt */
EndTransferFunc *end_transfer_func;
uint8_t *data_ptr;
uint8_t *data_end;
uint8_t *io_buffer;
/* PIO save/restore */
int32_t io_buffer_total_len;
int cur_io_buffer_offset;
int cur_io_buffer_len;
uint8_t end_transfer_fn_idx;
QEMUTimer *sector_write_timer; /* only used for win2k install hack */
uint32_t irq_count; /* counts IRQs when using win2k install hack */
/* CF-ATA extended error */
uint8_t ext_error;
/* CF-ATA metadata storage */
uint32_t mdata_size;
uint8_t *mdata_storage;
int media_changed;
/* for pmac */
int is_read;
/* SMART */
uint8_t smart_enabled;
uint8_t smart_autosave;
int smart_errors;
uint8_t smart_selftest_count;
uint8_t *smart_selftest_data;
};
struct IDEBus {
BusState qbus;
IDEDevice *master;
IDEDevice *slave;
BMDMAState *bmdma;
IDEState ifs[2];
uint8_t unit;
uint8_t cmd;
qemu_irq irq;
};
struct IDEDevice {
DeviceState qdev;
uint32_t unit;
BlockConf conf;
char *version;
};
typedef int (*ide_qdev_initfn)(IDEDevice *dev);
struct IDEDeviceInfo {
DeviceInfo qdev;
ide_qdev_initfn init;
uint32_t unit;
DriveInfo *drive;
};
#define BM_STATUS_DMAING 0x01
#define BM_STATUS_ERROR 0x02
#define BM_STATUS_INT 0x04
#define BM_STATUS_DMA_RETRY 0x08
#define BM_STATUS_PIO_RETRY 0x10
#define BM_STATUS_RETRY_READ 0x20
#define BM_CMD_START 0x01
#define BM_CMD_READ 0x08
struct BMDMAState {
uint8_t cmd;
uint8_t status;
uint32_t addr;
IDEBus *bus;
/* current transfer state */
uint32_t cur_addr;
uint32_t cur_prd_last;
uint32_t cur_prd_addr;
uint32_t cur_prd_len;
uint8_t unit;
BlockDriverCompletionFunc *dma_cb;
BlockDriverAIOCB *aiocb;
struct iovec iov;
QEMUIOVector qiov;
int64_t sector_num;
uint32_t nsector;
QEMUBH *bh;
};
static inline IDEState *idebus_active_if(IDEBus *bus)
{
return bus->ifs + bus->unit;
}
static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
{
assert(bmdma->unit != (uint8_t)-1);
return bmdma->bus->ifs + bmdma->unit;
}
static inline void ide_set_irq(IDEBus *bus)
{
BMDMAState *bm = bus->bmdma;
if (!(bus->cmd & IDE_CMD_DISABLE_IRQ)) {
if (bm) {
bm->status |= BM_STATUS_INT;
}
qemu_irq_raise(bus->irq);
}
}
/* hw/ide/core.c */
extern const VMStateDescription vmstate_ide_bus;
#define VMSTATE_IDE_BUS(_field, _state) \
VMSTATE_STRUCT(_field, _state, 1, vmstate_ide_bus, IDEBus)
#define VMSTATE_IDE_BUS_ARRAY(_field, _state, _num) \
VMSTATE_STRUCT_ARRAY(_field, _state, _num, 1, vmstate_ide_bus, IDEBus)
extern const VMStateDescription vmstate_ide_drive;
#define VMSTATE_IDE_DRIVES(_field, _state) \
VMSTATE_STRUCT_ARRAY(_field, _state, 2, 3, vmstate_ide_drive, IDEState)
void ide_bus_reset(IDEBus *bus);
int64_t ide_get_sector(IDEState *s);
void ide_set_sector(IDEState *s, int64_t sector_num);
void ide_dma_cancel(BMDMAState *bm);
void ide_dma_restart_cb(void *opaque, int running, int reason);
void ide_dma_error(IDEState *s);
void ide_dma_reset(BMDMAState *bm);
void ide_atapi_cmd_ok(IDEState *s);
void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
void ide_atapi_io_error(IDEState *s, int ret);
void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_ioport_read(void *opaque, uint32_t addr1);
uint32_t ide_status_read(void *opaque, uint32_t addr);
void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val);
void ide_data_writew(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_data_readw(void *opaque, uint32_t addr);
void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_data_readl(void *opaque, uint32_t addr);
void ide_init_drive(IDEState *s, DriveInfo *dinfo, BlockConf *conf,
const char *version);
void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1,
qemu_irq irq);
void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
/* hw/ide/qdev.c */
void ide_bus_new(IDEBus *idebus, DeviceState *dev);
IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
#endif /* HW_IDE_INTERNAL_H */
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