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/*
* Copyright (c) 2014, STMicroelectronics International N.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TEE_MISC_H
#define TEE_MISC_H
#include <types_ext.h>
/*
* Macro to derive hex string buffer size from binary buffer size & the
* reverse
*/
#define TEE_B2HS_HSBUF_SIZE(x) ((x) * 2 + 1)
#define TEE_HS2B_BBUF_SIZE(x) ((x + 1) >> 1)
/*
* binary to hex string buffer
* Returns the number of data bytes written to the hex string
*/
uint32_t tee_b2hs(uint8_t *b, uint8_t *hs, uint32_t blen, uint32_t hslen);
/*
* hex string to binary buffer
* Returns the number of data bytes written to the bin buffer
*/
uint32_t tee_hs2b(uint8_t *hs, uint8_t *b, uint32_t hslen, uint32_t blen);
/*
* Is buffer 'b' inside/outside/overlapping area 'a'?
*
* core_is_buffer_inside() - return true if buffer is inside memory area
* core_is_buffer_outside() - return true if buffer is outside area
* core_is_buffer_intersect() - return true if buffer overlaps area
*
* Warning: core_is_buffer_inside(x,x,x,x)==false does NOT mean
* core_is_buffer_outside(x,x,x,x)==true.
*
* Arguments use by each of these routines:
* @b - buffer start address (handled has an unsigned offset)
* @bl - length (in bytes) of the target buffer
* @a - memory area start address (handled has an unsigned offset)
* @al - memory area length (in byte)
*/
#define core_is_buffer_inside(b, bl, a, al) \
_core_is_buffer_inside((vaddr_t)(b), (size_t)(bl), \
(vaddr_t)(a), (size_t)(al))
#define core_is_buffer_outside(b, bl, a, al) \
_core_is_buffer_outside((vaddr_t)(b), (size_t)(bl), \
(vaddr_t)(a), (size_t)(al))
#define core_is_buffer_intersect(b, bl, a, al) \
_core_is_buffer_intersect((vaddr_t)(b), (size_t)(bl), \
(vaddr_t)(a), (size_t)(al))
bool _core_is_buffer_inside(vaddr_t b, size_t bl, vaddr_t a, size_t al);
bool _core_is_buffer_outside(vaddr_t b, size_t bl, vaddr_t a, size_t al);
bool _core_is_buffer_intersect(vaddr_t b, size_t bl, vaddr_t a, size_t al);
#endif /* TEE_MISC_H */
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