132 lines
4.4 KiB
C
132 lines
4.4 KiB
C
/**
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* \file
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*
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* \brief USB Include Header Files.
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*
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* This file contains the USB definitions and data structures provided by the
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* USB 2.0 specification.
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*
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* Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*/
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#ifndef _USB_INCLUDES_H_
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#define _USB_INCLUDES_H_
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#ifdef USB_USER_INCLUDES
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#include "usb_user_includes.h"
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#else
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/* Include START headers */
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include <utils.h>
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#include <utils_list.h>
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#include <utils_assert.h>
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#include <hal_atomic.h>
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typedef uint16_t le16_t;
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typedef uint32_t le32_t;
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typedef uint16_t be16_t;
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typedef uint32_t be32_t;
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#if (defined __GNUC__) || (defined __CC_ARM)
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#define is_constant(exp) __builtin_constant_p(exp)
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#else
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#define is_constant(exp) (0)
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#endif
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/*! \brief Toggles the endianism of \a u16 (by swapping its bytes).
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*
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* \param u16 U16 of which to toggle the endianism.
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*
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* \return Value resulting from \a u16 with toggled endianism.
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*
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* \note More optimized if only used with values known at compile time.
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*/
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#define swap_u16(u16) ((uint16_t)(((uint16_t)(u16) >> 8) | ((uint16_t)(u16) << 8)))
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/*! \brief Toggles the endianism of \a u32 (by swapping its bytes).
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*
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* \param u32 U32 of which to toggle the endianism.
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*
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* \return Value resulting from \a u32 with toggled endianism.
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*
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* \note More optimized if only used with values known at compile time.
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*/
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#if (defined __GNUC__)
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#define swap_u32(u32) \
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(is_constant(u32) \
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? ((uint32_t)(((uint32_t)swap_u16((uint32_t)(u32) >> 16)) | ((uint32_t)swap_u16((uint32_t)(u32)) << 16))) \
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: ((uint32_t)__builtin_bswap32((uint32_t)(u32))))
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#else
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#define swap_u32(u32) \
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((uint32_t)(((uint32_t)swap_u16((uint32_t)(u32) >> 16)) | ((uint32_t)swap_u16((uint32_t)(u32)) << 16)))
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#endif
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/** Get a value from/to LE16 data */
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#define LE16(x) (x)
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/** Get a value from/to LE32 data */
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#define LE32(x) (x)
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/** Get a value from/to BE16 data */
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#define BE16(x) swap_u16(x)
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/** Get a value from/to BE32 data */
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#define BE32(x) swap_u32(x)
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/** Get byte 0 for BE 16-bit value */
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#define BE16B0(a) ((uint8_t)((a) >> 8))
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/** Get byte 1 for BE 16-bit value */
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#define BE16B1(a) ((uint8_t)((a) >> 0))
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/** Get byte 0 for BE 32-bit value */
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#define BE32B0(a) ((uint8_t)((a) >> 24))
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/** Get byte 1 for BE 32-bit value */
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#define BE32B1(a) ((uint8_t)((a) >> 16))
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/** Get byte 2 for BE 32-bit value */
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#define BE32B2(a) ((uint8_t)((a) >> 8))
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/** Get byte 3 for BE 32-bit value */
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#define BE32B3(a) ((uint8_t)((a) >> 0))
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/** Get byte 0 for LE 16-bit value */
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#define LE16B0(a) ((uint8_t)((a) >> 0))
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/** Get byte 1 for LE 16-bit value */
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#define LE16B1(a) ((uint8_t)((a) >> 8))
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/** Get byte 0 for LE 32-bit value */
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#define LE32B0(a) ((uint8_t)((a) >> 0))
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/** Get byte 1 for LE 32-bit value */
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#define LE32B1(a) ((uint8_t)((a) >> 8))
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/** Get byte 2 for LE 32-bit value */
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#define LE32B2(a) ((uint8_t)((a) >> 16))
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/** Get byte 3 for LE 32-bit value */
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#define LE32B3(a) ((uint8_t)((a) >> 24))
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#endif /* USB_USER_INCLUDES */
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#endif /* _USB_INCLUDES_H_ */
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