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