LXR qemu/include/hw/usb/msd.h

   1/*
   2 * USB Mass Storage Device emulation
   3 *
   4 * Copyright (c) 2006 CodeSourcery.
   5 * Written by Paul Brook
   6 *
   7 * This code is licensed under the LGPL.
   8 */
   9
  10#include "hw/usb.h"
  11#include "hw/scsi/scsi.h"
  12
  13enum USBMSDMode {
  14    USB_MSDM_CBW, /* Command Block.  */
  15    USB_MSDM_DATAOUT, /* Transfer data to device.  */
  16    USB_MSDM_DATAIN, /* Transfer data from device.  */
  17    USB_MSDM_CSW /* Command Status.  */
  18};
  19
  20struct usb_msd_csw {
  21    uint32_t sig;
  22    uint32_t tag;
  23    uint32_t residue;
  24    uint8_t status;
  25};
  26
  27struct MSDState {
  28    USBDevice dev;
  29    enum USBMSDMode mode;
  30    uint32_t scsi_off;
  31    uint32_t scsi_len;
  32    uint32_t data_len;
  33    struct usb_msd_csw csw;
  34    SCSIRequest *req;
  35    SCSIBus bus;
  36    /* For async completion.  */
  37    USBPacket *packet;
  38    /* usb-storage only */
  39    BlockConf conf;
  40    bool removable;
  41    bool commandlog;
  42    SCSIDevice *scsi_dev;
  43};
  44
  45typedef struct MSDState MSDState;
  46#define TYPE_USB_STORAGE "usb-storage-dev"
  47DECLARE_INSTANCE_CHECKER(MSDState, USB_STORAGE_DEV,
  48                         TYPE_USB_STORAGE)
  49
  50void usb_msd_transfer_data(SCSIRequest *req, uint32_t len);
  51void usb_msd_command_complete(SCSIRequest *req, size_t resid);
  52void usb_msd_request_cancelled(SCSIRequest *req);
  53void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req);
  54void usb_msd_handle_reset(USBDevice *dev);
  55