summaryrefslogtreecommitdiff
path: root/bsp/avr32/software_framework/utils/libs/newlib_addons/include/nlao_io.h
blob: a725769fa806e6fa733a934372d39369cdcb423f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */

/*This file is prepared for Doxygen automatic documentation generation.*/
/*! \file *********************************************************************
 *
 * \brief NEWLIB_ADDONS miscellaneous macros include file for AVR32.
 *
 * - Compiler:           GNU GCC for AVR32
 * - Supported devices:  All AVR32 devices can be used.
 * - AppNote:
 *
 * \author               Atmel Corporation: http://www.atmel.com \n
 *                       Support and FAQ: http://support.atmel.no/
 *
 ******************************************************************************/

/* Copyright (c) 2009 Atmel Corporation. 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.
 *
 * 3. The name of Atmel may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an Atmel
 * AVR product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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 __AVR32_NEWLIB_ADDONS_IO_H__
#define __AVR32_NEWLIB_ADDONS_IO_H__

#include <_ansi.h>

_BEGIN_STD_C

typedef char u8;
typedef unsigned int u32;

#define __raw_writeb(v,a)       (*(volatile unsigned char  *)(a) = (v))
#define __raw_writew(v,a)       (*(volatile unsigned short *)(a) = (v))
#define __raw_writel(v,a)       (*(volatile unsigned int   *)(a) = (v))

#define __raw_readb(a)          (*(volatile unsigned char  *)(a))
#define __raw_readw(a)          (*(volatile unsigned short *)(a))
#define __raw_readl(a)          (*(volatile unsigned int   *)(a))

/* As long as I/O is only performed in P4 (or possibly P3), we're safe */
#define writeb(v,a)		__raw_writeb(v,a)
#define writew(v,a)		__raw_writew(v,a)
#define writel(v,a)		__raw_writel(v,a)

#define readb(a)		__raw_readb(a)
#define readw(a)		__raw_readw(a)
#define readl(a)		__raw_readl(a)

/* Memory segments when segmentation is enabled */
#define P0SEG		0x00000000
#define P1SEG		0x80000000
#define P2SEG		0xa0000000
#define P3SEG		0xc0000000
#define P4SEG		0xe0000000

/* Returns the privileged segment base of a given address */
#define PXSEG(a)	(((unsigned long)(a)) & 0xe0000000)

/* Returns the physical address of a PnSEG (n=1,2) address */
#define PHYSADDR(a)	(((unsigned long)(a)) & 0x1fffffff)

/*
 * Map an address to a certain privileged segment
 */
#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG))
#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG))
#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))


#define cached(addr) P1SEGADDR(addr)
#define uncached(addr) P2SEGADDR(addr)
#define physaddr(addr) PHYSADDR(addr)

#define BF(field, value) \
  ({ union { \
      struct { \
       unsigned           : 32 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long __val: field ##  _SIZE ; \
      }; \
      unsigned long __ul; \
     } __tmp; \
     __tmp.__ul = 0; \
     __tmp.__val = value; \
     __tmp.__ul;})

#define BF_D(field, value) \
  ({ union { \
      struct { \
       unsigned long long : 64 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long long __val: field ##  _SIZE ; \
      }; \
      unsigned long long __ul; \
     } __tmp; \
     __tmp.__ul = 0; \
     __tmp.__val = value; \
     __tmp.__ul;})

#define BFINS(var, field, value) \
  { union {\
      struct { \
       unsigned           : 32 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long __val: field ##  _SIZE ; \
      }; \
      unsigned long __ul; \
     } __tmp; \
     __tmp.__ul = var; \
     __tmp.__val = value; \
     var = __tmp.__ul;}

#define BFEXT(var, field) \
  ({ union {\
      struct { \
       unsigned           : 32 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long __val: field ##  _SIZE ; \
      }; \
      unsigned long __ul; \
     } __tmp; \
     __tmp.__ul = var; \
     __tmp.__val; })

#define BFINS_D(var, field, value) \
  { union {\
      struct { \
       unsigned long long : 64 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long long __val: field ##  _SIZE ; \
      }; \
      unsigned long long __ul; \
     } __tmp; \
     __tmp.__ul = var; \
     __tmp.__val = value; \
     var = __tmp.__ul;}

#define BFEXT_D(var, field) \
  ({ union {\
      struct { \
       unsigned long long : 64 - field ##  _OFFSET -  field ##  _SIZE ; \
       unsigned long long __val: field ##  _SIZE ; \
      }; \
      unsigned long long __ul; \
     } __tmp; \
     __tmp.__ul = var; \
     __tmp.__val; })


_END_STD_C

#endif