include/common.h

   1 /*
   2  * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0
   5  */
   6
   7 #ifndef COMMON_H
   8 #define COMMON_H
   9
  10 #include <stdio.h>
  11 #include <stdint.h>
  12 #include <stdbool.h>
  13 #include <string.h>
  14 #include <stdlib.h>
  15 #include "errnum.h"
  16
  17 #define GCC_VERSION (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
  18
  19 #define USED __attribute__((used))
  20 #define UNUSED __attribute__((unused))
  21
  22 #ifdef __AVR__
  23 #include <avr/io.h>
  24 #include <avr/pgmspace.h>
  25 #include <util/delay.h>
  26
  27 #define udelay(n)  _delay_us(n)
  28
  29 struct bits {
  30   uint8_t b0:1;
  31   uint8_t b1:1;
  32   uint8_t b2:1;
  33   uint8_t b3:1;
  34   uint8_t b4:1;
  35   uint8_t b5:1;
  36   uint8_t b6:1;
  37   uint8_t b7:1;
  38 } __attribute__((__packed__));
  39
  40 #define SBIT(port,pin) ((*(volatile struct bits*)&port).b##pin)
  41
  42 //GCC bug PR61443
  43 //  Known to work: 4.8.4, 4.9.1
  44 //  Known to fail: 4.8.3, 4.9.0
  45
  46 #if (GCC_VERSION < 40804) || (GCC_VERSION == 40900)
  47 #define GCC_BUG_61443 1
  48 #endif /* PR61443 */
  49
  50 #else
  51 // TODO: stm32
  52 #endif /* __AVR__ */
  53
  54 #ifdef __FLASH
  55 #define FLASH __flash
  56 #define MEMX __memx
  57 #else
  58 #define FLASH
  59 #define MEMX
  60 #endif
  61
  62 #define stringify(s)    tostring(s)
  63 #define tostring(s)     #s
  64
  65 #define FSTR(X) ((const FLASH char[]) { X } )
  66 #define ARRAY_SIZE(x)   (sizeof(x) / sizeof((x)[0]))
  67
  68 #define MIN(a,b)    ({ typeof (a) _a = (a);                                    \
  69                                                 typeof (b) _b = (b);                                   \
  70                                                 _a < _b ? _a : _b; })
  71 #define MAX(a,b)    ({ typeof (a) _a = (a);                                    \
  72                                                 typeof (b) _b = (b);                                   \
  73                                                 _a > _b ? _a : _b; })
  74
  75 #ifdef __AVR__
  76 #define Stat GPIOR0
  77 #else
  78 extern volatile uint_least8_t Stat;
  79 #endif /* __AVR__ */
  80
  81 #define S_10MS_TO               (1<<0)
  82 #define S_MSG_PENDING   (1<<1)
  83 #define S_CON_PENDING   (1<<2)
  84
  85 static inline
  86 int my_puts(const char *s)
  87 {
  88         return fputs(s, stdout);
  89 }
  90
  91 static inline
  92 int my_puts_P(const char *s)
  93 {
  94 #ifdef __AVR__
  95         return fputs_P(s, stdout);
  96 #else
  97         return fputs(s, stdout);
  98 #endif /* __AVR__ */
  99 }
 100
 101 #endif /* COMMON_H */