blob: 5c5145a9145997a4b54121f3eeb3d792fec2e789 [file] [log] [blame]
/*
* Copyright (c) 2008 Travis Geiselbrecht
*
* Copyright (c) 2013, The Linux Foundation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __STDLIB_H
#define __STDLIB_H
#include <sys/types.h>
#include <stddef.h>
#include <malloc.h>
#include <printf.h>
#include <endian.h>
#include <arch/defines.h>
unsigned gcd(unsigned m, unsigned n);
unsigned lcm(unsigned m, unsigned n);
int atoi(const char *num);
unsigned int atoui(const char *num);
long atol(const char *num);
unsigned long atoul(const char *num);
int itoa(int num, unsigned char* str, int len, int base);
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define ROUNDUP(a, b) (((a) + ((b)-1)) & ~((b)-1))
#define ROUNDDOWN(a, b) ((a) & ~((b)-1))
/* allocate a buffer on the stack aligned and padded to the cpu's cache line size */
#define STACKBUF_DMA_ALIGN(var, size) \
uint8_t __##var[(size) + CACHE_LINE]; uint8_t *var = (uint8_t *)(ROUNDUP((addr_t)__##var, CACHE_LINE))
/* Macro to allocate buffer in both local & global space, the STACKBUF_DMA_ALIGN cannot
* be used for global space.
* If we use STACKBUF_DMA_ALIGN 'C' compiler throws the error "Initializer element
* is not constant", since global variable need to be initialized with a constant value.
*/
#define BUF_DMA_ALIGN(var, size) \
static uint8_t var[ROUNDUP(size, CACHE_LINE)] __attribute__((aligned(CACHE_LINE)));
#endif