static int usb_msd_handle_control(USBDevice *dev, int request, int value,

                                  int index, int length, uint8_t *data)

{

    MSDState *s = (MSDState *)dev;

    int ret;



    ret = usb_desc_handle_control(dev, request, value, index, length, data);

    if (ret >= 0) {

        return ret;

    }



    ret = 0;

    switch (request) {

    case DeviceRequest | USB_REQ_GET_STATUS:

        data[0] = (1 << USB_DEVICE_SELF_POWERED) |

            (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);

        data[1] = 0x00;

        ret = 2;

        break;

    case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:

        if (value == USB_DEVICE_REMOTE_WAKEUP) {

            dev->remote_wakeup = 0;

        } else {

            goto fail;

        }

        ret = 0;

        break;

    case DeviceOutRequest | USB_REQ_SET_FEATURE:

        if (value == USB_DEVICE_REMOTE_WAKEUP) {

            dev->remote_wakeup = 1;

        } else {

            goto fail;

        }

        ret = 0;

        break;

    case DeviceRequest | USB_REQ_GET_CONFIGURATION:

        data[0] = 1;

        ret = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:

        ret = 0;

        break;

    case DeviceRequest | USB_REQ_GET_INTERFACE:

        data[0] = 0;

        ret = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_INTERFACE:

        ret = 0;

        break;

    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:

        ret = 0;

        break;

    case InterfaceOutRequest | USB_REQ_SET_INTERFACE:

        ret = 0;

        break;

        /* Class specific requests.  */

    case ClassInterfaceOutRequest | MassStorageReset:

        /* Reset state ready for the next CBW.  */

        s->mode = USB_MSDM_CBW;

        ret = 0;

        break;

    case ClassInterfaceRequest | GetMaxLun:

        data[0] = 0;

        ret = 1;

        break;

    default:

    fail:

        ret = USB_RET_STALL;

        break;

    }

    return ret;

}

static int usb_msd_handle_control(USBDevice *dev, int request, int value,

                                  int index, int length, uint8_t *data)

{

    MSDState *s = (MSDState *)dev;

    int ret;



    ret = usb_desc_handle_control(dev, request, value, index, length, data);

    if (ret >= 0) {

        return ret;

    }



    ret = 0;

    switch (request) {

    case DeviceRequest | USB_REQ_GET_STATUS:

        data[0] = (1 << USB_DEVICE_SELF_POWERED) |

            (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);

        data[1] = 0x00;

        ret = 2;

        break;

    case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:

        if (value == USB_DEVICE_REMOTE_WAKEUP) {

            dev->remote_wakeup = 0;

        } else {

            goto fail;

        }

        ret = 0;

        break;

    case DeviceOutRequest | USB_REQ_SET_FEATURE:

        if (value == USB_DEVICE_REMOTE_WAKEUP) {

            dev->remote_wakeup = 1;

        } else {

            goto fail;

        }

        ret = 0;

        break;

    case DeviceRequest | USB_REQ_GET_CONFIGURATION:

        data[0] = 1;

        ret = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:

        ret = 0;

        break;

    case DeviceRequest | USB_REQ_GET_INTERFACE:

        data[0] = 0;

        ret = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_INTERFACE:

        ret = 0;

        break;

    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:

        ret = 0;

        break;

    case InterfaceOutRequest | USB_REQ_SET_INTERFACE:

        ret = 0;

        break;

        

    case ClassInterfaceOutRequest | MassStorageReset:

        

        s->mode = USB_MSDM_CBW;

        ret = 0;

        break;

    case ClassInterfaceRequest | GetMaxLun:

        data[0] = 0;

        ret = 1;

        break;

    default:

    fail:

        ret = USB_RET_STALL;

        break;

    }

    return ret;

}

static int FUNC_0(USBDevice *VAR_0, int VAR_1, int VAR_2,

                                  int VAR_3, int VAR_4, uint8_t *VAR_5)

{

    MSDState *s = (MSDState *)VAR_0;

    int VAR_6;



    VAR_6 = usb_desc_handle_control(VAR_0, VAR_1, VAR_2, VAR_3, VAR_4, VAR_5);

    if (VAR_6 >= 0) {

        return VAR_6;

    }



    VAR_6 = 0;

    switch (VAR_1) {

    case DeviceRequest | USB_REQ_GET_STATUS:

        VAR_5[0] = (1 << USB_DEVICE_SELF_POWERED) |

            (VAR_0->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);

        VAR_5[1] = 0x00;

        VAR_6 = 2;

        break;

    case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:

        if (VAR_2 == USB_DEVICE_REMOTE_WAKEUP) {

            VAR_0->remote_wakeup = 0;

        } else {

            goto fail;

        }

        VAR_6 = 0;

        break;

    case DeviceOutRequest | USB_REQ_SET_FEATURE:

        if (VAR_2 == USB_DEVICE_REMOTE_WAKEUP) {

            VAR_0->remote_wakeup = 1;

        } else {

            goto fail;

        }

        VAR_6 = 0;

        break;

    case DeviceRequest | USB_REQ_GET_CONFIGURATION:

        VAR_5[0] = 1;

        VAR_6 = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:

        VAR_6 = 0;

        break;

    case DeviceRequest | USB_REQ_GET_INTERFACE:

        VAR_5[0] = 0;

        VAR_6 = 1;

        break;

    case DeviceOutRequest | USB_REQ_SET_INTERFACE:

        VAR_6 = 0;

        break;

    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:

        VAR_6 = 0;

        break;

    case InterfaceOutRequest | USB_REQ_SET_INTERFACE:

        VAR_6 = 0;

        break;

        

    case ClassInterfaceOutRequest | MassStorageReset:

        

        s->mode = USB_MSDM_CBW;

        VAR_6 = 0;

        break;

    case ClassInterfaceRequest | GetMaxLun:

        VAR_5[0] = 0;

        VAR_6 = 1;

        break;

    default:

    fail:

        VAR_6 = USB_RET_STALL;

        break;

    }

    return VAR_6;

}

static int FUNC_0(USBDevice *VAR_0, int VAR_1, int VAR_2,
int VAR_3, int VAR_4, uint8_t *VAR_5)
{ MSDState *s = (MSDState *)VAR_0; int VAR_6; VAR_6 = usb_desc_handle_control(VAR_0, VAR_1, VAR_2, VAR_3, VAR_4, VAR_5); if (VAR_6 >= 0) { return VAR_6; } VAR_6 = 0; switch (VAR_1) { case DeviceRequest | USB_REQ_GET_STATUS:
VAR_5[0] = (1 << USB_DEVICE_SELF_POWERED) |
(VAR_0->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); VAR_5[1] = 0x00; VAR_6 = 2; break; case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
if (VAR_2 == USB_DEVICE_REMOTE_WAKEUP) { VAR_0->remote_wakeup = 0; } else { goto fail; } VAR_6 = 0; break; case DeviceOutRequest | USB_REQ_SET_FEATURE:
if (VAR_2 == USB_DEVICE_REMOTE_WAKEUP) { VAR_0->remote_wakeup = 1; } else { goto fail; } VAR_6 = 0; break; case DeviceRequest | USB_REQ_GET_CONFIGURATION:
VAR_5[0] = 1; VAR_6 = 1; break; case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
VAR_6 = 0; break; case DeviceRequest | USB_REQ_GET_INTERFACE:
VAR_5[0] = 0; VAR_6 = 1; break; case DeviceOutRequest | USB_REQ_SET_INTERFACE:
VAR_6 = 0; break; case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
VAR_6 = 0; break; case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
VAR_6 = 0; break; case ClassInterfaceOutRequest | MassStorageReset:
s->mode = USB_MSDM_CBW; VAR_6 = 0; break; case ClassInterfaceRequest | GetMaxLun:
VAR_5[0] = 0; VAR_6 = 1; break; default:
fail:
VAR_6 = USB_RET_STALL; break; } return VAR_6; }