d52affa7f6
* Add SCSIBus. * Add SCSIDeviceInfo, move device callbacks here. * add qdev/scsi helper functions. * convert drivers. Adding scsi disks via -device works now, i.e. you can do: -drive id=sda,if=none,... -device lsi -device scsi-disk,drive=sda legacy command lines (-drive if=scsi,...) continue to work. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
#ifndef SCSI_DISK_H
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#define SCSI_DISK_H
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#include "qdev.h"
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/* scsi-disk.c */
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enum scsi_reason {
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SCSI_REASON_DONE, /* Command complete. */
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SCSI_REASON_DATA /* Transfer complete, more data required. */
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};
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typedef struct SCSIBus SCSIBus;
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typedef struct SCSIDevice SCSIDevice;
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typedef struct SCSIDeviceInfo SCSIDeviceInfo;
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typedef void (*scsi_completionfn)(SCSIBus *bus, int reason, uint32_t tag,
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uint32_t arg);
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struct SCSIDevice
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{
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DeviceState qdev;
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uint32_t id;
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SCSIDeviceInfo *info;
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};
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/* cdrom.c */
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int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
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int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
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/* scsi-bus.c */
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typedef int (*scsi_qdev_initfn)(SCSIDevice *dev);
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struct SCSIDeviceInfo {
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DeviceInfo qdev;
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scsi_qdev_initfn init;
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void (*destroy)(SCSIDevice *s);
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int32_t (*send_command)(SCSIDevice *s, uint32_t tag, uint8_t *buf,
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int lun);
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void (*read_data)(SCSIDevice *s, uint32_t tag);
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int (*write_data)(SCSIDevice *s, uint32_t tag);
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void (*cancel_io)(SCSIDevice *s, uint32_t tag);
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uint8_t *(*get_buf)(SCSIDevice *s, uint32_t tag);
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};
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typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
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int unit);
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struct SCSIBus {
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BusState qbus;
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int busnr;
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int tcq, ndev;
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scsi_completionfn complete;
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SCSIDevice *devs[8];
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};
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SCSIBus *scsi_bus_new(DeviceState *host, int tcq, int ndev,
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scsi_completionfn complete);
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void scsi_qdev_register(SCSIDeviceInfo *info);
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static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
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{
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return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
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}
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SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, DriveInfo *dinfo, int unit);
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void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
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#endif
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