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