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