81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
/**************************************************************************/
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/*!
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@file std_request.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 group_usb_definitions
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* @{ */
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#ifndef _TUSB_STD_REQUEST_H_
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#define _TUSB_STD_REQUEST_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef ATTR_PACKED_STRUCT(struct){
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union {
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ATTR_PACKED_STRUCT(struct) {
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uint8_t recipient : 5; ///< Recipient type tusb_std_request_recipient_t.
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uint8_t type : 2; ///< Request type tusb_control_request_type_t.
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uint8_t direction : 1; ///< Direction type. tusb_direction_t
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} bmRequestType_bit;
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uint8_t bmRequestType;
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};
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uint8_t bRequest;
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uint16_t wValue;
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uint16_t wIndex;
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uint16_t wLength;
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} tusb_control_request_t;
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STATIC_ASSERT( sizeof(tusb_control_request_t) == 8, "mostly compiler option issue");
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// TODO move to somewhere suitable
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static inline uint8_t bm_request_type(uint8_t direction, uint8_t type, uint8_t recipient) ATTR_CONST ATTR_ALWAYS_INLINE;
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static inline uint8_t bm_request_type(uint8_t direction, uint8_t type, uint8_t recipient)
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{
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return ((uint8_t) (direction << 7)) | ((uint8_t) (type << 5)) | (recipient);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TUSB_STD_REQUEST_H_ */
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/** @} */
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