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
|
/****************************************************************************
* arch/avr/src/avr32/up_internal.h
*
* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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 OWNER 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 __ARCH_AVR_SRC_AVR32_AVR32_INTERNAL_H
#define __ARCH_AVR_SRC_AVR32_AVR32_INTERNAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <nuttx/compiler.h>
# include <stdint.h>
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Macros to handle saving and restore interrupt state. The state is copied
* from the stack to the TCB, but only a referenced is passed to get the
* state from the TCB.
*/
#define up_savestate(regs) up_copystate(regs, (uint32_t*)current_regs)
#define up_restorestate(regs) (current_regs = regs)
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Variables
****************************************************************************/
#ifndef __ASSEMBLY__
/* This holds a references to the current interrupt level register storage
* structure. If is non-NULL only during interrupt processing.
*/
extern volatile uint32_t *current_regs;
/* This is the beginning of heap as provided from up_head.S. This is the first
* address in DRAM after the loaded program+bss+idle stack. The end of the
* heap is CONFIG_RAM_END
*/
extern uint32_t g_idle_topstack;
#endif /* __ASSEMBLY__ */
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Name: up_copystate
*
* Description:
* Copy the contents of a register state save structure from one location to
* another.
*
************************************************************************************/
extern void up_copystate(uint32_t *dest, uint32_t *src);
/************************************************************************************
* Name: up_fullcontextrestore
*
* Description:
* Restore the full context of a saved thread/task.
*
************************************************************************************/
extern void up_fullcontextrestore(uint32_t *restoreregs) noreturn_function;
/************************************************************************************
* Name: up_switchcontext
*
* Description:
* Switch from one thread/task context to another.
*
************************************************************************************/
extern void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs);
/************************************************************************************
* Name: up_doirq
*
* Description:
* Dispatch an interrupt.
*
************************************************************************************/
extern uint32_t *up_doirq(int irq, uint32_t *regs);
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_AVR_SRC_AVR32_AVR32_INTERNAL_H */
|
