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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
|
/* ---------------------------------------------------------------------------- */
/* Atmel Microcontroller Software Support */
/* SAM Software Package License */
/* ---------------------------------------------------------------------------- */
/* Copyright (c) 2015, Atmel Corporation */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following condition is met: */
/* */
/* - Redistributions of source code must retain the above copyright notice, */
/* this list of conditions and the disclaimer below. */
/* */
/* Atmel's name may not be used to endorse or promote products derived from */
/* this software without specific prior written permission. */
/* */
/* DISCLAIMER: 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 */
/* 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 _COMPILER_H_
#define _COMPILER_H_
#ifdef __rtems__
#include <bspopts.h>
#endif /* __rtems__ */
/*
* Peripherals registers definitions
*/
#if defined __SAMV71J19__ \
|| defined __SAMV71J20__ \
|| defined __SAMV71J21__ \
|| defined __SAMV71N19__ \
|| defined __SAMV71N20__ \
|| defined __SAMV71N21__ \
|| defined __SAMV71Q19__ \
|| defined __SAMV71Q20__ \
|| defined __SAMV71Q21__
#include "include/samv71/samv71.h"
#elif defined __SAMS70J19__ \
|| defined __SAMS70J20__ \
|| defined __SAMS70J21__ \
|| defined __SAMS70N19__ \
|| defined __SAMS70N20__ \
|| defined __SAMS70N21__ \
|| defined __SAMS70Q19__ \
|| defined __SAMS70Q20__ \
|| defined __SAMS70Q21__
#include "include/sams70/sams70.h"
#elif defined __SAME70J19__ \
|| defined __SAME70J20__ \
|| defined __SAME70J21__ \
|| defined __SAME70N19__ \
|| defined __SAME70N20__ \
|| defined __SAME70N21__ \
|| defined __SAME70Q19__ \
|| defined __SAME70Q20__ \
|| defined __SAME70Q21__
#include "include/same70/same70.h"
#else
#error "please define correct macro for the chip first!"
#endif
//_____ D E C L A R A T I O N S ____________________________________________
#ifndef __ASSEMBLY__
#include <stddef.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
/* Define WEAK attribute */
#if defined (__CC_ARM)
#define WEAK __attribute__ ((weak))
#elif defined (__ICCARM__)
#define WEAK __weak
#elif defined (__GNUC__)
#define WEAK __attribute__ ((weak))
#endif
/* Define Compiler name of tool chains */
#if defined (__CC_ARM)
#define COMPILER_NAME "KEIL"
#elif defined (__ICCARM__)
#define COMPILER_NAME "IAR"
#elif defined (__GNUC__)
#define COMPILER_NAME "GCC"
#endif
/* Define NO_INIT attribute */
#if defined (__CC_ARM)
#define NO_INIT
#elif defined (__ICCARM__)
#define NO_INIT __no_init
#elif defined (__GNUC__)
#define NO_INIT
#endif
/* Define memory sync for tool chains */
#if defined (__CC_ARM)
#define memory_sync() __dsb(15);__isb(15);
#elif defined (__ICCARM__)
#define memory_sync() __DSB();__ISB();
#elif defined (__GNUC__)
#define memory_sync() __DSB();__ISB();
#endif
/* Define memory barrier for tool chains */
#if defined (__CC_ARM)
#define memory_barrier() __dmb(15);
#elif defined (__ICCARM__)
#define memory_barrier() __DMB();
#elif defined (__GNUC__)
#define memory_barrier() __DMB();
#endif
/*! \name Token Paste
*
* Paste N preprocessing tokens together, these tokens being allowed to be \#defined.
*
* May be used only within macros with the tokens passed as arguments if the tokens are \#defined.
*
* For example, writing TPASTE2(U, WIDTH) within a macro \#defined by
* UTYPE(WIDTH) and invoked as UTYPE(UL_WIDTH) with UL_WIDTH \#defined as 32 is
* equivalent to writing U32.
*/
//! @{
#define TPASTE2(a, b) a##b
#define TPASTE3(a, b, c) a##b##c
//! @}
/*! \name Absolute Token Paste
*
* Paste N preprocessing tokens together, these tokens being allowed to be \#defined.
*
* No restriction of use if the tokens are \#defined.
*
* For example, writing ATPASTE2(U, UL_WIDTH) anywhere with UL_WIDTH \#defined
* as 32 is equivalent to writing U32.
*/
//! @{
#define ATPASTE2(a, b) TPASTE2(a, b)
#define ATPASTE3(a, b, c) TPASTE3(a, b, c)
//! @}
/**
* \brief Emit the compiler pragma \a arg.
*
* \param arg The pragma directive as it would appear after \e \#pragma
* (i.e. not stringified).
*/
#define COMPILER_PRAGMA(arg) _Pragma(#arg)
/**
* \def COMPILER_PACK_SET(alignment)
* \brief Set maximum alignment for subsequent structure and union
* definitions to \a alignment.
*/
#define COMPILER_PACK_SET(alignment) COMPILER_PRAGMA(pack(alignment))
/**
* \def COMPILER_PACK_RESET()
* \brief Set default alignment for subsequent structure and union
* definitions.
*/
#define COMPILER_PACK_RESET() COMPILER_PRAGMA(pack())
/**
* \brief Set user-defined section.
* Place a data object or a function in a user-defined section.
*/
#if defined (__CC_ARM)
#define COMPILER_SECTION(a) __attribute__((__section__(a)))
#elif defined (__ICCARM__)
#define COMPILER_SECTION(a) COMPILER_PRAGMA(location = a)
#elif defined (__GNUC__)
#define COMPILER_SECTION(a) __attribute__((__section__(a)))
#endif
/**
* \brief Set aligned boundary.
*/
#if defined (__CC_ARM)
#define COMPILER_ALIGNED(a) __attribute__((__aligned__(a)))
#elif defined (__ICCARM__)
#define COMPILER_ALIGNED(a) COMPILER_PRAGMA(data_alignment = a)
#elif defined (__GNUC__)
#define COMPILER_ALIGNED(a) __attribute__((__aligned__(a)))
#endif
/**
* \brief Set word-aligned boundary.
*/
#if defined (__CC_ARM)
#define COMPILER_WORD_ALIGNED __attribute__((__aligned__(4)))
#elif defined (__ICCARM__)
#define COMPILER_WORD_ALIGNED COMPILER_PRAGMA(data_alignment = 4)
#elif defined (__GNUC__)
#define COMPILER_WORD_ALIGNED __attribute__((__aligned__(4)))
#endif
/*! \name Mathematics
*
* The same considerations as for clz and ctz apply here but GCC does not
* provide built-in functions to access the assembly instructions abs, min and
* max and it does not produce them by itself in most cases, so two sets of
* macros are defined here:
* - Abs, Min and Max to apply to constant expressions (values known at
* compile time);
* - abs, min and max to apply to non-constant expressions (values unknown at
* compile time), abs is found in stdlib.h.
*/
//! @{
/*! \brief Takes the absolute value of \a a.
*
* \param a Input value.
*
* \return Absolute value of \a a.
*
* \note More optimized if only used with values known at compile time.
*/
#define Abs(a) (((a) < 0) ? -(a) : (a))
/*! \brief Takes the minimal value of \a a and \a b.
*
* \param a Input value.
* \param b Input value.
*
* \return Minimal value of \a a and \a b.
*
* \note More optimized if only used with values known at compile time.
*/
#define Min(a, b) (((a) < (b)) ? (a) : (b))
/*! \brief Takes the maximal value of \a a and \a b.
*
* \param a Input value.
* \param b Input value.
*
* \return Maximal value of \a a and \a b.
*
* \note More optimized if only used with values known at compile time.
*/
#define Max(a, b) (((a) > (b)) ? (a) : (b))
// abs() is already defined by stdlib.h
/*! \brief Takes the minimal value of \a a and \a b.
*
* \param a Input value.
* \param b Input value.
*
* \return Minimal value of \a a and \a b.
*
* \note More optimized if only used with values unknown at compile time.
*/
#define min(a, b) Min(a, b)
/*! \brief Takes the maximal value of \a a and \a b.
*
* \param a Input value.
* \param b Input value.
*
* \return Maximal value of \a a and \a b.
*
* \note More optimized if only used with values unknown at compile time.
*/
#define max(a, b) Max(a, b)
//! @}
#define be32_to_cpu(x) __REV(x)
#define cpu_to_be32(x) __REV(x)
#define BE32_TO_CPU(x) __REV(x)
#define CPU_TO_BE32(x) __REV(x)
/**
* \def UNUSED
* \brief Marking \a v as a unused parameter or value.
*/
#define UNUSED(v) (void)(v)
/**
* \weakgroup interrupt_group
*
* @{
*/
/**
* \name Interrupt Service Routine definition
*
* @{
*/
/**
* \brief Initialize interrupt vectors
*
* For NVIC the interrupt vectors are put in vector table. So nothing
* to do to initialize them, except defined the vector function with
* right name.
*
* This must be called prior to \ref irq_register_handler.
*/
# define irq_initialize_vectors() \
do { \
} while (0)
/**
* \brief Register handler for interrupt
*
* For NVIC the interrupt vectors are put in vector table. So nothing
* to do to register them, except defined the vector function with
* right name.
*
* Usage:
* \code
irq_initialize_vectors();
irq_register_handler(foo_irq_handler);
\endcode
*
* \note The function \a func must be defined with the \ref ISR macro.
* \note The functions prototypes can be found in the device exception header
* files (exceptions.h).
*/
# define irq_register_handler(int_num, int_prio) \
NVIC_ClearPendingIRQ((IRQn_Type)int_num); \
NVIC_SetPriority((IRQn_Type)int_num, int_prio); \
NVIC_EnableIRQ((IRQn_Type)int_num); \
//@}
# define cpu_irq_enable() \
do { \
/*g_interrupt_enabled = true; */ \
__DMB(); \
__enable_irq(); \
} while (0)
# define cpu_irq_disable() \
do { \
__disable_irq(); \
__DMB(); \
/*g_interrupt_enabled = false; */ \
} while (0)
typedef uint32_t irqflags_t;
#if !defined(__DOXYGEN__)
extern volatile bool g_interrupt_enabled;
#endif
#define cpu_irq_is_enabled() (__get_PRIMASK() == 0)
static volatile uint32_t cpu_irq_critical_section_counter;
static volatile bool cpu_irq_prev_interrupt_state;
static inline irqflags_t cpu_irq_save(void)
{
irqflags_t flags = cpu_irq_is_enabled();
cpu_irq_disable();
return flags;
}
static inline bool cpu_irq_is_enabled_flags(irqflags_t flags)
{
return (flags);
}
static inline void cpu_irq_restore(irqflags_t flags)
{
if (cpu_irq_is_enabled_flags(flags))
cpu_irq_enable();
}
/*
void cpu_irq_enter_critical(void);
void cpu_irq_leave_critical(void);*/
/**
* \weakgroup interrupt_deprecated_group
* @{
*/
#define Enable_global_interrupt() cpu_irq_enable()
#define Disable_global_interrupt() cpu_irq_disable()
#define Is_global_interrupt_enabled() cpu_irq_is_enabled()
//_____ M A C R O S ________________________________________________________
/*! \name Usual Constants
*/
//! @{
#define DISABLE 0
#define ENABLE 1
#define DISABLED 0
#define ENABLED 1
#define OFF 0
#define ON 1
#define FALSE 0
#define TRUE 1
#ifndef __cplusplus
#if !defined(__bool_true_false_are_defined)
#define false FALSE
#define true TRUE
#endif
#endif
#define KO 0
#define OK 1
#define PASS 0
#define FAIL 1
#define LOW 0
#define HIGH 1
#define CLR 0
#define SET 1
//! @}
/*! \brief Counts the trailing zero bits of the given value considered as a 32-bit integer.
*
* \param u Value of which to count the trailing zero bits.
*
* \return The count of trailing zero bits in \a u.
*/
#define ctz(u) ((u) & (1ul << 0) ? 0 : \
(u) & (1ul << 1) ? 1 : \
(u) & (1ul << 2) ? 2 : \
(u) & (1ul << 3) ? 3 : \
(u) & (1ul << 4) ? 4 : \
(u) & (1ul << 5) ? 5 : \
(u) & (1ul << 6) ? 6 : \
(u) & (1ul << 7) ? 7 : \
(u) & (1ul << 8) ? 8 : \
(u) & (1ul << 9) ? 9 : \
(u) & (1ul << 10) ? 10 : \
(u) & (1ul << 11) ? 11 : \
(u) & (1ul << 12) ? 12 : \
(u) & (1ul << 13) ? 13 : \
(u) & (1ul << 14) ? 14 : \
(u) & (1ul << 15) ? 15 : \
(u) & (1ul << 16) ? 16 : \
(u) & (1ul << 17) ? 17 : \
(u) & (1ul << 18) ? 18 : \
(u) & (1ul << 19) ? 19 : \
(u) & (1ul << 20) ? 20 : \
(u) & (1ul << 21) ? 21 : \
(u) & (1ul << 22) ? 22 : \
(u) & (1ul << 23) ? 23 : \
(u) & (1ul << 24) ? 24 : \
(u) & (1ul << 25) ? 25 : \
(u) & (1ul << 26) ? 26 : \
(u) & (1ul << 27) ? 27 : \
(u) & (1ul << 28) ? 28 : \
(u) & (1ul << 29) ? 29 : \
(u) & (1ul << 30) ? 30 : \
(u) & (1ul << 31) ? 31 : \
32)
#endif // __ASSEMBLY__
#endif // _COMPILER_H_
|
