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reg.h
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1/*
2 * Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31/**
32 * \addtogroup cc2538
33 * @{
34 *
35 * \defgroup cc2538-reg cc2538 Register Manipulation
36 *
37 * Macros for hardware access, both direct and via the bit-band region.
38 * @{
39 *
40 * \file
41 * Header file with register manipulation macro definitions
42 */
43#ifndef REG_H_
44#define REG_H_
45
46#define REG(x) (*((volatile unsigned long *)(x)))
47#define REG_H(x) (*((volatile unsigned short *)(x)))
48#define REG_B(x) (*((volatile unsigned char *)(x)))
49#define REG_BIT_W(x, b) \
50 REG(((unsigned long)(x) & 0xF0000000) | 0x02000000 | \
51 (((unsigned long)(x) & 0x000FFFFF) << 5) | ((b) << 2))
52#define REG_BIT_H(x, b) \
53 REG_H(((unsigned long)(x) & 0xF0000000) | 0x02000000 | \
54 (((unsigned long)(x) & 0x000FFFFF) << 5) | ((b) << 2))
55#define REG_BIT_B(x, b) \
56 REG_B(((unsigned long)(x) & 0xF0000000) | 0x02000000 | \
57 (((unsigned long)(x) & 0x000FFFFF) << 5) | ((b) << 2))
58
59#endif /* REG_H_ */
60
61/**
62 * @}
63 * @}
64 */