src/include/avrdata.h

   1 /* Copyright (C) 2008 Sean D'Epagnier <sean@depagnier.com>
   2  *
   3  * This Program is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 3 of the License, or (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  16  *
  17  * For more information on the GPL, please go to:
  18  * http://www.gnu.org/copyleft/gpl.html
  19  */
  20
  21 /* include this file to use EEMEM and PROGMEM attributes
  22    as well as the standard functions to access them.
  23
  24    Emulation is provided if not running on an avr.
  25 */
  26
  27 #include <stdint.h>
  28
  29 float gettime(void);
  30
  31 #ifdef __AVR__
  32 #define PGM_STR_FMT "%S"
  33
  34 #include <avr/pgmspace.h>
  35 #include <avr/eeprom.h>
  36
  37 uint8_t eeprom_read_byte_safe(const uint8_t *addr);
  38 uint8_t eeprom_read_byte_safe(const uint8_t *addr);
  39 uint16_t eeprom_read_word_safe(const uint16_t *addr);
  40 void  eeprom_read_block_safe(void *pointer_ram, const void *pointer_eeprom,
  41                               size_t n);
  42 float eeprom_read_float_safe(float *var);
  43
  44 void eeprom_write_byte_safe(uint8_t *addr, uint8_t val);
  45 void eeprom_write_word_safe(uint16_t *addr, uint16_t val);
  46 void eeprom_write_block_safe(const void *pointer_ram, void *pointer_eeprom,
  47                              size_t n);
  48 void eeprom_write_float_safe(float *var, float val);
  49
  50 #ifndef AVRDATA_SKIP_EEPROM_DEFINE
  51
  52 // undefine if already macros
  53 #ifdef eeprom_read_byte
  54 #undef eeprom_read_byte
  55 #undef eeprom_read_word
  56 #undef eeprom_write_byte
  57 #undef eeprom_write_word
  58 #endif
  59
  60 #define eeprom_read_byte eeprom_safe_error
  61 #define eeprom_read_word eeprom_safe_error
  62 #define eeprom_write_byte eeprom_safe_error
  63 #define eeprom_write_word eeprom_safe_error
  64
  65 #endif
  66
  67 static void *pgm_read_ptr(const void *x) { return (void*)pgm_read_word(x); }
  68
  69 #define DATA_LOCK    uint8_t oldtimsk2 = TIMSK2; TIMSK2 &= ~_BV(TOIE2)
  70 #define DATA_UNLOCK  TIMSK2 = oldtimsk2
  71
  72 #else
  73 #define PSTR(x) x
  74 #define PGM_STR_FMT "%s"
  75
  76 #include "nonavrdata.h"
  77
  78 #define eeprom_read_byte_safe eeprom_read_byte
  79 #define eeprom_read_word_safe eeprom_read_word
  80 #define eeprom_read_block_safe eeprom_read_block
  81 #define eeprom_read_float_safe(var) (*var)
  82
  83 #define eeprom_write_byte_safe eeprom_write_byte
  84 #define eeprom_write_word_safe eeprom_write_word
  85 #define eeprom_write_block_safe eeprom_write_block
  86 #define eeprom_write_float_safe(var, val) (*var = val)
  87
  88 #define DATA_LOCK calibration_server_lock();
  89 #define DATA_UNLOCK calibration_server_unlock();
  90
  91 #endif