hw/scsi.h

   1 #ifndef SCSI_DISK_H
   2 #define SCSI_DISK_H
   3
   4 #include "qdev.h"
   5
   6 /* scsi-disk.c */
   7 enum scsi_reason {
   8     SCSI_REASON_DONE, /* Command complete.  */
   9     SCSI_REASON_DATA  /* Transfer complete, more data required.  */
  10 };
  11
  12 typedef struct SCSIBus SCSIBus;
  13 typedef struct SCSIDevice SCSIDevice;
  14 typedef struct SCSIDeviceInfo SCSIDeviceInfo;
  15 typedef void (*scsi_completionfn)(SCSIBus *bus, int reason, uint32_t tag,
  16                                   uint32_t arg);
  17
  18 struct SCSIDevice
  19 {
  20     DeviceState qdev;
  21     uint32_t id;
  22     SCSIDeviceInfo *info;
  23 };
  24
  25 /* cdrom.c */
  26 int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
  27 int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
  28
  29 /* scsi-bus.c */
  30 typedef int (*scsi_qdev_initfn)(SCSIDevice *dev);
  31 struct SCSIDeviceInfo {
  32     DeviceInfo qdev;
  33     scsi_qdev_initfn init;
  34     void (*destroy)(SCSIDevice *s);
  35     int32_t (*send_command)(SCSIDevice *s, uint32_t tag, uint8_t *buf,
  36                             int lun);
  37     void (*read_data)(SCSIDevice *s, uint32_t tag);
  38     int (*write_data)(SCSIDevice *s, uint32_t tag);
  39     void (*cancel_io)(SCSIDevice *s, uint32_t tag);
  40     uint8_t *(*get_buf)(SCSIDevice *s, uint32_t tag);
  41 };
  42
  43 typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
  44               int unit);
  45 struct SCSIBus {
  46     BusState qbus;
  47     int busnr;
  48
  49     int tcq, ndev;
  50     scsi_completionfn complete;
  51
  52     SCSIDevice *devs[8];
  53 };
  54
  55 void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
  56                   scsi_completionfn complete);
  57 void scsi_qdev_register(SCSIDeviceInfo *info);
  58
  59 static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
  60 {
  61     return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
  62 }
  63
  64 SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, DriveInfo *dinfo, int unit);
  65 void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
  66
  67 #endif