rename CEIL as DIV_ROUND_UP

[fw/openocd] / src / helper / types.h

diff --git a/src/helper/types.h b/src/helper/types.h
index ece56264274ac42be4f0890d25efc2809407f8ab..8f6283b57bdd8878a8c4b5dfddfb6e45568f6f17 100644 (file)
--- a/src/helper/types.h
+++ b/src/helper/types.h
@@ -2,7 +2,7 @@
  *   Copyright (C) 2004, 2005 by Dominic Rath                              *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
- *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
+ *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -23,31 +23,17 @@
 #ifndef TYPES_H
 #define TYPES_H
 
+#include <stddef.h>
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
 #endif
-
-#ifndef uint8_t
-typedef unsigned char uint8_t;
-#endif
-
-#ifndef uint16_t
-typedef unsigned short uint16_t;
-#endif
-
-#ifndef uint32_t
-typedef unsigned int uint32_t;
-#endif
-
-#ifndef uint64_t
-typedef unsigned long long uint64_t;
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
 #endif
 
-typedef struct jtag_tap_s jtag_tap_t;
-
 #ifdef HAVE_STDBOOL_H
 #include <stdbool.h>
 #else  /* HAVE_STDBOOL_H */
@@ -69,6 +55,33 @@ typedef bool _Bool;
 
 #endif /* HAVE_STDBOOL_H */
 
+/// turns a macro argument into a string constant
+#define stringify(s) __stringify(s)
+#define __stringify(s) #s
+
+
+/**
+ * Cast a member of a structure out to the containing structure.
+ * @param ptr The pointer to the member.
+ * @param type The type of the container struct this is embedded in.
+ * @param member The name of the member within the struct.
+ *
+ * This is a mechanism which is used throughout the Linux kernel.
+ */
+#define container_of(ptr, type, member) ({                     \
+       const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+       (type *)( (char *)__mptr - offsetof(type,member) );})
+
+
+/**
+ * Rounds @c m up to the nearest multiple of @c n using division.
+ * @params m The value to round up to @c n.
+ * @params n Round @c m up to a multiple of this number.
+ * @returns The rounded integer value.
+ */
+#define DIV_ROUND_UP(m, n)     (((m) + (n) - 1) / (n))
+
+
 /* DANGER!!!! here be dragons!
  *
  * Leave these fn's as byte accesses because it is safe
@@ -136,9 +149,20 @@ static inline void h_u16_to_be(uint8_t* buf, int val)
        buf[1] = (uint8_t) (val >> 0);
 }
 
-#ifdef __ECOS
+#if defined(__ECOS)
+
+/* eCos plain lacks these definition... A series of upstream patches
+ * could probably repair it, but it seems like too much work to be
+ * worth it.
+ */
+
+#if !defined(_STDINT_H)
+#define PRIx32 "x"
+#define PRId32 "d"
+#define SCNx32 "x"
+#define PRIi32 "i"
+#define PRIu32 "u"
 
-/* eCos plain lacks this definition... */
 typedef CYG_ADDRWORD intptr_t;
 typedef int64_t intmax_t;
 typedef uint64_t uintmax_t;
@@ -154,8 +178,19 @@ typedef uint64_t uintmax_t;
 #define INT64_MAX 0x7fffffffffffffffLL
 #define INT64_MIN (-INT64_MAX - 1LL)
 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
+#endif
+
+    #ifndef LLONG_MAX
+       #define ULLONG_MAX      UINT64_C(0xFFFFFFFFFFFFFFFF)
+       #define LLONG_MAX       INT64_C(0x7FFFFFFFFFFFFFFF)
+       #define LLONG_MIN       ULLONG_MAX
+    #endif
+
 
+#define ULLONG_MAX 18446744073709551615
 
+/* C99, eCos is C90 compliant (with bits of C99) */
+#define isblank(c) ((c) == ' ' || (c) == '\t')
 
 
 #endif