100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
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/*******************************************************************************
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This software file (the "File") is distributed by Marvell International Ltd.
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or its affiliate(s) under the terms of the GNU General Public License Version 2,
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June 1991 (the "License"). You may use, redistribute and/or modify this File
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in accordance with the terms and conditions of the License, a copy of which
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is available along with the File in the license.txt file or by writing to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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or on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
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WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
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DISCLAIMED. The GPL License provides additional details about this warranty
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disclaimer.
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(C) Copyright 2004 - 2007 Marvell Semiconductor Israel Ltd. All Rights Reserved.
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(C) Copyright 1999 - 2004 Chipidea Microelectronica, S.A. All Rights Reserved.
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*******************************************************************************/
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#include "mvUsbDevApi.h"
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#include "mvUsbDevPrv.h"
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : _usb_device_recv_data
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* Returned Value : USB_OK or error code
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* Comments :
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* Receives data on a specified endpoint.
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*
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*END*-----------------------------------------------------------------*/
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uint_8 _usb_device_recv_data
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(
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/* [IN] the USB_USB_dev_initialize state structure */
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_usb_device_handle handle,
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/* [IN] the Endpoint number */
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uint_8 ep_num,
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/* [IN] buffer to receive data */
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uint_8_ptr buff_ptr,
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/* [IN] length of the transfer */
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uint_32 size
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)
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{ /* Body */
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int lockKey;
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uint_8 error = USB_OK;
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XD_STRUCT_PTR xd_ptr;
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USB_DEV_STATE_STRUCT_PTR usb_dev_ptr;
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usb_dev_ptr = (USB_DEV_STATE_STRUCT_PTR)handle;
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ARC_DEBUG_TRACE(ARC_DEBUG_FLAG_RX, "recv_data: ep=%d, buf_ptr=0x%x, size=%d\n",
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ep_num, (unsigned)buff_ptr, (int)size);
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ARC_DEBUG_CODE(ARC_DEBUG_FLAG_STATS, (usb_dev_ptr->STATS.usb_recv_count++));
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if(buff_ptr != NULL)
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USB_dcache_inv((pointer)buff_ptr,size);
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lockKey = USB_lock();
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if (!usb_dev_ptr->XD_ENTRIES)
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{
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USB_unlock(lockKey);
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USB_printf("_usb_device_recv_data, transfer in progress\n");
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return ARC_USB_STATUS_TRANSFER_IN_PROGRESS;
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} /* Endif */
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/* Get a transfer descriptor for the specified endpoint
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** and direction
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*/
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USB_XD_QGET(usb_dev_ptr->XD_HEAD, usb_dev_ptr->XD_TAIL, xd_ptr);
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usb_dev_ptr->XD_ENTRIES--;
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/* Initialize the new transfer descriptor */
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xd_ptr->EP_NUM = ep_num;
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xd_ptr->BDIRECTION = ARC_USB_RECV;
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xd_ptr->WTOTALLENGTH = size;
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xd_ptr->WSOFAR = 0;
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xd_ptr->WSTARTADDRESS = buff_ptr;
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xd_ptr->BSTATUS = ARC_USB_STATUS_TRANSFER_ACCEPTED;
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error = _usb_dci_vusb20_add_dTD(handle, xd_ptr);
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USB_unlock(lockKey);
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if (error)
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{
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USB_printf("_usb_device_recv_data, receive failed\n");
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return USBERR_RX_FAILED;
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} /* Endif */
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return error;
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} /* EndBody */
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