| 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 | * |
| 13 | * 1. The above copyright notice and this permission notice shall be |
| 14 | * included in all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * 2. If the Software is incorporated into a build system that allows |
| 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 |
| 37 | extern "C" { |
| 38 | #endif |
| 39 | |
| 40 | void eeprom_initialize(void); |
| 41 | uint8_t eeprom_read_byte(const uint8_t *addr) __attribute__ ((pure)); |
| 42 | uint16_t eeprom_read_word(const uint16_t *addr) __attribute__ ((pure)); |
| 43 | uint32_t eeprom_read_dword(const uint32_t *addr) __attribute__ ((pure)); |
| 44 | void eeprom_read_block(void *buf, const void *addr, uint32_t len); |
| 45 | void eeprom_write_byte(uint8_t *addr, uint8_t value); |
| 46 | void eeprom_write_word(uint16_t *addr, uint16_t value); |
| 47 | void eeprom_write_dword(uint32_t *addr, uint32_t value); |
| 48 | void eeprom_write_block(const void *buf, void *addr, uint32_t len); |
| 49 | int eeprom_is_ready(void); |
| 50 | #define eeprom_busy_wait() do {} while (!eeprom_is_ready()) |
| 51 | |
| 52 | static inline float eeprom_read_float(const float *addr) __attribute__((pure, always_inline, unused)); |
| 53 | static 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 | } |
| 59 | static inline void eeprom_write_float(float *addr, float value) __attribute__((always_inline, unused)); |
| 60 | static 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 | } |
| 66 | static inline void eeprom_update_byte(uint8_t *addr, uint8_t value) __attribute__((always_inline, unused)); |
| 67 | static inline void eeprom_update_byte(uint8_t *addr, uint8_t value) |
| 68 | { |
| 69 | eeprom_write_byte(addr, value); |
| 70 | } |
| 71 | static inline void eeprom_update_word(uint16_t *addr, uint16_t value) __attribute__((always_inline, unused)); |
| 72 | static inline void eeprom_update_word(uint16_t *addr, uint16_t value) |
| 73 | { |
| 74 | eeprom_write_word(addr, value); |
| 75 | } |
| 76 | static inline void eeprom_update_dword(uint32_t *addr, uint32_t value) __attribute__((always_inline, unused)); |
| 77 | static inline void eeprom_update_dword(uint32_t *addr, uint32_t value) |
| 78 | { |
| 79 | eeprom_write_dword(addr, value); |
| 80 | } |
| 81 | static inline void eeprom_update_float(float *addr, float value) __attribute__((always_inline, unused)); |
| 82 | static 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 | } |
| 88 | static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len) __attribute__((always_inline, unused)); |
| 89 | static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len) |
| 90 | { |
| 91 | eeprom_write_block(buf, addr, len); |
| 92 | } |
| 93 | |
| 94 | |
| 95 | char * ultoa(unsigned long val, char *buf, int radix); |
| 96 | char * ltoa(long val, char *buf, int radix); |
| 97 | static inline char * utoa(unsigned int val, char *buf, int radix) __attribute__((always_inline, unused)); |
| 98 | static inline char * utoa(unsigned int val, char *buf, int radix) { return ultoa(val, buf, radix); } |
| 99 | static inline char * itoa(int val, char *buf, int radix) __attribute__((always_inline, unused)); |
| 100 | static inline char * itoa(int val, char *buf, int radix) { return ltoa(val, buf, radix); } |
| 101 | char * dtostrf(float val, int width, unsigned int precision, char *buf); |
| 102 | |
| 103 | |
| 104 | #ifdef __cplusplus |
| 105 | } |
| 106 | #endif |
| 107 | #endif |