X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/889202c46ced1be4fc0db3faf63564722eba2865..d64e55f23b1e865c51ab27c034c4698267f05e76:/include/common.h

diff --git a/include/common.h b/include/common.h
index 74339df..dea638a 100644
--- a/include/common.h
+++ b/include/common.h
@@ -1,9 +1,34 @@
+/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
 #ifndef COMMON_H
 #define COMMON_H
 
+#include <stdio.h>
+#include <stdint.h>
+
 #ifdef __AVR__
 #include <avr/io.h>
 #include <avr/pgmspace.h>
+#include <util/delay.h>
+
+#define udelay(n)  _delay_us(n)
+
+struct bits {
+  uint8_t b0:1;
+  uint8_t b1:1;
+  uint8_t b2:1;
+  uint8_t b3:1;
+  uint8_t b4:1;
+  uint8_t b5:1;
+  uint8_t b6:1;
+  uint8_t b7:1;
+} __attribute__((__packed__));
+
+#define SBIT(port,pin) ((*(volatile struct bits*)&port).b##pin)
 
 //TODO:
 //  Known to work: 4.8.4, 4.9.1
@@ -14,15 +39,13 @@
 // TODO: stm32
 #endif /* __AVR__ */
 
-#include <stdio.h>
-
 #ifdef __FLASH
 #define FLASH __flash
 #define MEMX __memx
 #else
 #define FLASH
 #define MEMX
-#endif 
+#endif
 
 #define stringify(s)	tostring(s)
 #define tostring(s)	#s
@@ -30,6 +53,12 @@
 #define FSTR(X) ((const FLASH char[]) { X } )
 #define ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
 
+#define MIN(a,b)    ({ typeof (a) _a = (a);                                    \
+						typeof (b) _b = (b);                                   \
+						_a < _b ? _a : _b; })
+#define MAX(a,b)    ({ typeof (a) _a = (a);                                    \
+						typeof (b) _b = (b);                                   \
+						_a > _b ? _a : _b; })
 
 #ifdef __AVR__
 #define Stat GPIOR0
@@ -37,17 +66,17 @@
 extern volatile uint_least8_t Stat;
 #endif /* __AVR__ */
 
-#define S_10MS_TO	(1<<0)
-#define S_MSG_PENDING	(2<<0)
-#define S_CON_PENDING	(3<<0)
+#define S_10MS_TO		(1<<0)
+#define S_MSG_PENDING	(1<<1)
+#define S_CON_PENDING	(1<<2)
 
-static inline 
+static inline
 void my_puts(const char *s)
 {
 	fputs(s, stdout);
 }
 
-static inline 
+static inline
 void my_puts_P(const char *s)
 {
 #ifdef __AVR__
@@ -58,4 +87,3 @@ void my_puts_P(const char *s)
 }
 
 #endif /* COMMON_H */
-