99 lines
3.5 KiB
C
99 lines
3.5 KiB
C
/**************************************************************************/
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/*!
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@file dcd_lpc175x_6x.h
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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/** \ingroup TBD
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* \defgroup TBD
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* \brief TBD
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*
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* @{
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*/
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#ifndef _TUSB_DCD_LPC175X_6X_H_
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#define _TUSB_DCD_LPC175X_6X_H_
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#include "common/common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct
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{
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//------------- Word 0 -------------//
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uint32_t next;
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//------------- Word 1 -------------//
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uint16_t mode : 2; // either normal or ATLE(auto length extraction)
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uint16_t is_next_valid : 1;
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uint16_t : 1;
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uint16_t is_isochronous : 1; // is an iso endpoint
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uint16_t max_packet_size : 11;
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volatile uint16_t buffer_length;
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//------------- Word 2 -------------//
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volatile uint32_t buffer_start_addr;
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//------------- Word 3 -------------//
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volatile uint16_t is_retired : 1; // initialized to zero
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volatile uint16_t status : 4;
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volatile uint16_t iso_last_packet_valid : 1;
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volatile uint16_t atle_is_lsb_extracted : 1; // used in ATLE mode
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volatile uint16_t atle_is_msb_extracted : 1; // used in ATLE mode
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volatile uint16_t atle_message_length_position : 6; // used in ATLE mode
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uint16_t : 2;
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volatile uint16_t present_count; // The number of bytes transferred by the DMA engine. The DMA engine updates this field after completing each packet transfer.
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//------------- Word 4 -------------//
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// uint32_t iso_packet_size_addr; // iso only, can be omitted for non-iso
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} ATTR_ALIGNED(4) dcd_dma_descriptor_t;
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#define DCD_DD_NUM 10 // TODO scale with configure
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typedef struct {
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dcd_dma_descriptor_t dd[DCD_DD_NUM];
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}dcd_data_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TUSB_DCD_LPC175X_6X_H_ */
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/** @} */
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