blob: ff705d005f19ac4a894f9dd74c94f51bc60fcf2c [file] [log] [blame]
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2012-2014 Intel Corporation. All rights reserved.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdint.h>
#include <stdlib.h>
#include <alloca.h>
#include <byteswap.h>
#include <string.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define le16_to_cpu(val) (val)
#define le32_to_cpu(val) (val)
#define le64_to_cpu(val) (val)
#define cpu_to_le16(val) (val)
#define cpu_to_le32(val) (val)
#define cpu_to_le64(val) (val)
#define be16_to_cpu(val) bswap_16(val)
#define be32_to_cpu(val) bswap_32(val)
#define be64_to_cpu(val) bswap_64(val)
#define cpu_to_be16(val) bswap_16(val)
#define cpu_to_be32(val) bswap_32(val)
#define cpu_to_be64(val) bswap_64(val)
#elif __BYTE_ORDER == __BIG_ENDIAN
#define le16_to_cpu(val) bswap_16(val)
#define le32_to_cpu(val) bswap_32(val)
#define le64_to_cpu(val) bswap_64(val)
#define cpu_to_le16(val) bswap_16(val)
#define cpu_to_le32(val) bswap_32(val)
#define cpu_to_le64(val) bswap_64(val)
#define be16_to_cpu(val) (val)
#define be32_to_cpu(val) (val)
#define be64_to_cpu(val) (val)
#define cpu_to_be16(val) (val)
#define cpu_to_be32(val) (val)
#define cpu_to_be64(val) (val)
#else
#error "Unknown byte order"
#endif
#define get_unaligned(ptr) \
__extension__ ({ \
struct __attribute__((packed)) { \
__typeof__(*(ptr)) __v; \
} *__p = (__typeof__(__p)) (ptr); \
__p->__v; \
})
#define put_unaligned(val, ptr) \
do { \
struct __attribute__((packed)) { \
__typeof__(*(ptr)) __v; \
} *__p = (__typeof__(__p)) (ptr); \
__p->__v = (val); \
} while (0)
#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
#define UINT_TO_PTR(u) ((void *) ((uintptr_t) (u)))
#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
#define INT_TO_PTR(u) ((void *) ((intptr_t) (u)))
#define new0(type, count) \
(type *) (__extension__ ({ \
size_t __n = (size_t) (count); \
size_t __s = sizeof(type); \
void *__p; \
__p = btd_malloc(__n * __s); \
memset(__p, 0, __n * __s); \
__p; \
}))
#define newa(t, n) ((t*) alloca(sizeof(t)*(n)))
#define malloc0(n) (calloc((n), 1))
void *btd_malloc(size_t size);
typedef void (*util_debug_func_t)(const char *str, void *user_data);
void util_debug(util_debug_func_t function, void *user_data,
const char *format, ...)
__attribute__((format(printf, 3, 4)));
void util_hexdump(const char dir, const unsigned char *buf, size_t len,
util_debug_func_t function, void *user_data);
unsigned char util_get_dt(const char *parent, const char *name);
uint8_t util_get_uid(unsigned int *bitmap, uint8_t max);
void util_clear_uid(unsigned int *bitmap, uint8_t id);
static inline uint8_t get_u8(const void *ptr)
{
return *((uint8_t *) ptr);
}
static inline uint16_t get_le16(const void *ptr)
{
return le16_to_cpu(get_unaligned((const uint16_t *) ptr));
}
static inline uint16_t get_be16(const void *ptr)
{
return be16_to_cpu(get_unaligned((const uint16_t *) ptr));
}
static inline uint32_t get_le32(const void *ptr)
{
return le32_to_cpu(get_unaligned((const uint32_t *) ptr));
}
static inline uint32_t get_be32(const void *ptr)
{
return be32_to_cpu(get_unaligned((const uint32_t *) ptr));
}
static inline uint64_t get_le64(const void *ptr)
{
return le64_to_cpu(get_unaligned((const uint64_t *) ptr));
}
static inline uint64_t get_be64(const void *ptr)
{
return be64_to_cpu(get_unaligned((const uint64_t *) ptr));
}
static inline void put_le16(uint16_t val, void *dst)
{
put_unaligned(cpu_to_le16(val), (uint16_t *) dst);
}
static inline void put_be16(uint16_t val, const void *ptr)
{
put_unaligned(cpu_to_be16(val), (uint16_t *) ptr);
}
static inline void put_le32(uint32_t val, void *dst)
{
put_unaligned(cpu_to_le32(val), (uint32_t *) dst);
}
static inline void put_be32(uint32_t val, void *dst)
{
put_unaligned(cpu_to_be32(val), (uint32_t *) dst);
}
static inline void put_le64(uint64_t val, void *dst)
{
put_unaligned(cpu_to_le64(val), (uint64_t *) dst);
}
static inline void put_be64(uint64_t val, void *dst)
{
put_unaligned(cpu_to_be64(val), (uint64_t *) dst);
}