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