/**************************************************************************//*!
*
* @name _usb_device_set_status
*
* @brief The function saves status of endpoints as well as USB components.
*
* @param handle : USB Device handle
* @param component : USB component
* @param setting : Value to be set
*
* @return status
* USB_OK : When Successfull
* USBERR_BAD_STATUS : When error
*
******************************************************************************
* This function sets the endpoint as well USB component status which can be
* retrieved by calling _usb_device_get_status. This function can be called by
* Application as well as the DCI layer.
*****************************************************************************/
uint_8 _usb_device_set_status(
_usb_device_handle handle, /* [IN] USB Device handle */
uint_8 component, /* [IN] USB Component status to set */
uint_8 setting /* [IN] Status to set */
)
{
/* get the endpoint number from component input variable */
uint_8 ep_num = (uint_8)(component & USB_STATUS_ENDPOINT_NUMBER_MASK);
UNUSED (handle)
if((component <= USB_STATUS_TEST_MODE) &&
(component >= USB_STATUS_DEVICE_STATE))
{
/*
Set the corresponding component setting
-1 as components start from 1
*/
g_usb_component_status[component-1] = setting;
}
else if ((component & USB_STATUS_ENDPOINT) &&
(ep_num < MAX_SUPPORTED_ENDPOINTS))
{
uint_8 direction =
(uint_8)((component >> USB_COMPONENT_DIRECTION_SHIFT) &
USB_COMPONENT_DIRECTION_MASK);
/* HALT Endpoint */
if(setting == USB_STATUS_STALLED)
{
_usb_device_stall_endpoint(handle, ep_num, direction);
}
else if((setting == USB_STATUS_IDLE) &&
(g_usb_ep_status[ep_num] == USB_STATUS_STALLED))
{
_usb_device_unstall_endpoint(handle, ep_num, direction);
if(ep_num == CONTROL_ENDPOINT)
{
direction = (uint_8)((direction == USB_SEND)?
(USB_RECV):(USB_SEND));
_usb_device_unstall_endpoint(handle, ep_num, direction);
}
}
/* Set the corresponding endpoint setting */
g_usb_ep_status[ep_num] = setting;
}
void mvUsbCh9ClearFeature(_usb_device_handle handle, boolean setup,
SETUP_STRUCT* setup_ptr)
{ /* Body */
uint_8 endpoint, direction;
uint_16 usb_status;
ARC_DEBUG_TRACE(ARC_DEBUG_FLAG_SETUP, "%s: setup=%d\n", __FUNCTION__, (int)setup);
_usb_device_get_status(handle, ARC_USB_STATUS_DEVICE_STATE, &usb_status);
if ((usb_status != ARC_USB_STATE_CONFIG) && (usb_status != ARC_USB_STATE_ADDRESS))
{
USB_printf("ClearFeature: Wrong USB state %d\n", usb_status);
_usb_device_stall_endpoint(handle, 0, ARC_USB_RECV);
return;
} /* Endif */
if(!setup)
return;
switch (setup_ptr->REQUESTTYPE)
{
case (REQ_DIR_OUT | REQ_RECIP_DEVICE):
/* DEVICE */
switch(setup_ptr->VALUE)
{
case DEVICE_REMOTE_WAKEUP:
/* clear remote wakeup */
_usb_device_get_status(handle, ARC_USB_STATUS_DEVICE, &usb_status);
usb_status &= ~ARC_USB_REMOTE_WAKEUP;
_usb_device_set_status(handle, ARC_USB_STATUS_DEVICE, usb_status);
USB_printf("Clear REMOTE_WAKEUP feature\n");
break;
case DEVICE_TEST_MODE:
/* Exit Test Mode */
_usb_device_set_status(handle, ARC_USB_STATUS_TEST_MODE, 0);
break;
default:
USB_printf("ClearFeature: Unknown Device feature %d\n",
setup_ptr->VALUE);
_usb_device_stall_endpoint(handle, 0, ARC_USB_RECV);
return;
} /* Endif */
break;
case (REQ_DIR_OUT | REQ_RECIP_ENDPOINT):
/* ENDPOINT */
if (setup_ptr->VALUE != ENDPOINT_HALT)
{
USB_printf("ClearFeature: Wrong Endpoint feature %d\n",
setup_ptr->VALUE);
_usb_device_stall_endpoint(handle, 0, ARC_USB_RECV);
return;
} /* Endif */
endpoint = setup_ptr->INDEX & ARC_USB_STATUS_ENDPOINT_NUMBER_MASK;
if( (setup_ptr->INDEX & (1 << REQ_DIR_OFFSET)) == REQ_DIR_IN)
direction = ARC_USB_SEND;
else
direction = ARC_USB_RECV;
_usb_device_unstall_endpoint(handle, endpoint, direction);
break;
default:
USB_printf("ClearFeature: Unknown REQUEST_TYPE %d\n",
setup_ptr->REQUESTTYPE);
_usb_device_stall_endpoint(handle, 0, ARC_USB_RECV);
return;
} /* Endswitch */
/* status phase */
_usb_device_send_data(handle, 0, 0, 0);
}
