testpico: check busy after dma
[megadrive.git] / teensytp / teensy3 / avr_functions.h
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35f00b6c 1/* Teensyduino Core Library
2 * http://www.pjrc.com/teensy/
3 * Copyright (c) 2013 PJRC.COM, LLC.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
a773ac06 13 * 1. The above copyright notice and this permission notice shall be
35f00b6c 14 * included in all copies or substantial portions of the Software.
15 *
a773ac06 16 * 2. If the Software is incorporated into a build system that allows
35f00b6c 17 * selection among a list of target devices, then similar target
18 * devices manufactured by PJRC.COM must be included in the list of
19 * target devices and selectable in the same manner.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
25 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
26 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 * SOFTWARE.
29 */
30
31#ifndef _avr_functions_h_
32#define _avr_functions_h_
33
34#include <inttypes.h>
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40void eeprom_initialize(void);
41uint8_t eeprom_read_byte(const uint8_t *addr) __attribute__ ((pure));
42uint16_t eeprom_read_word(const uint16_t *addr) __attribute__ ((pure));
43uint32_t eeprom_read_dword(const uint32_t *addr) __attribute__ ((pure));
44void eeprom_read_block(void *buf, const void *addr, uint32_t len);
45void eeprom_write_byte(uint8_t *addr, uint8_t value);
46void eeprom_write_word(uint16_t *addr, uint16_t value);
47void eeprom_write_dword(uint32_t *addr, uint32_t value);
48void eeprom_write_block(const void *buf, void *addr, uint32_t len);
49int eeprom_is_ready(void);
50#define eeprom_busy_wait() do {} while (!eeprom_is_ready())
51
52static inline float eeprom_read_float(const float *addr) __attribute__((pure, always_inline, unused));
53static inline float eeprom_read_float(const float *addr)
54{
55 union {float f; uint32_t u32;} u;
56 u.u32 = eeprom_read_dword((const uint32_t *)addr);
57 return u.f;
58}
59static inline void eeprom_write_float(float *addr, float value) __attribute__((always_inline, unused));
60static inline void eeprom_write_float(float *addr, float value)
61{
62 union {float f; uint32_t u32;} u;
63 u.f = value;
64 eeprom_write_dword((uint32_t *)addr, u.u32);
65}
66static inline void eeprom_update_byte(uint8_t *addr, uint8_t value) __attribute__((always_inline, unused));
67static inline void eeprom_update_byte(uint8_t *addr, uint8_t value)
68{
69 eeprom_write_byte(addr, value);
70}
71static inline void eeprom_update_word(uint16_t *addr, uint16_t value) __attribute__((always_inline, unused));
72static inline void eeprom_update_word(uint16_t *addr, uint16_t value)
73{
74 eeprom_write_word(addr, value);
75}
76static inline void eeprom_update_dword(uint32_t *addr, uint32_t value) __attribute__((always_inline, unused));
77static inline void eeprom_update_dword(uint32_t *addr, uint32_t value)
78{
79 eeprom_write_dword(addr, value);
80}
81static inline void eeprom_update_float(float *addr, float value) __attribute__((always_inline, unused));
82static inline void eeprom_update_float(float *addr, float value)
83{
84 union {float f; uint32_t u32;} u;
85 u.f = value;
86 eeprom_write_dword((uint32_t *)addr, u.u32);
87}
88static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len) __attribute__((always_inline, unused));
89static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len)
90{
91 eeprom_write_block(buf, addr, len);
92}
93
94
95char * ultoa(unsigned long val, char *buf, int radix);
96char * ltoa(long val, char *buf, int radix);
97static inline char * utoa(unsigned int val, char *buf, int radix) __attribute__((always_inline, unused));
98static inline char * utoa(unsigned int val, char *buf, int radix) { return ultoa(val, buf, radix); }
99static inline char * itoa(int val, char *buf, int radix) __attribute__((always_inline, unused));
100static inline char * itoa(int val, char *buf, int radix) { return ltoa(val, buf, radix); }
101char * dtostrf(float val, int width, unsigned int precision, char *buf);
102
103
104#ifdef __cplusplus
105}
106#endif
107#endif