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