move container_of to types.h

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

diff --git a/src/helper/types.h b/src/helper/types.h
index f993ba21dc848ad20773fe71e5614e03f34daf72..a8753c5f149115c539e2e39d3eeb07256344f172 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 u8
-typedef unsigned char u8;
-#endif
-
-#ifndef u16
-typedef unsigned short u16;
-#endif
-
-#ifndef u32
-typedef unsigned int u32;
-#endif
-
-#ifndef u64
-typedef unsigned long long u64;
+#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 +55,24 @@ 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) );})
+
+
 /* DANGER!!!! here be dragons!
  *
  * Leave these fn's as byte accesses because it is safe
@@ -88,71 +92,98 @@ typedef bool _Bool;
  */
 
 
-static inline u32 le_to_h_u32(const u8* buf)
+static inline uint32_t le_to_h_u32(const uint8_t* buf)
 {
-       return (u32)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
+       return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
 }
 
-static inline u16 le_to_h_u16(const u8* buf)
+static inline uint16_t le_to_h_u16(const uint8_t* buf)
 {
-       return (u16)(buf[0] | buf[1] << 8);
+       return (uint16_t)(buf[0] | buf[1] << 8);
 }
 
-static inline u32 be_to_h_u32(const u8* buf)
+static inline uint32_t be_to_h_u32(const uint8_t* buf)
 {
-       return (u32)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
+       return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
 }
 
-static inline u16 be_to_h_u16(const u8* buf)
+static inline uint16_t be_to_h_u16(const uint8_t* buf)
 {
-       return (u16)(buf[1] | buf[0] << 8);
+       return (uint16_t)(buf[1] | buf[0] << 8);
 }
 
-static inline void h_u32_to_le(u8* buf, int val)
+static inline void h_u32_to_le(uint8_t* buf, int val)
 {
-       buf[3] = (u8) (val >> 24);
-       buf[2] = (u8) (val >> 16);
-       buf[1] = (u8) (val >> 8);
-       buf[0] = (u8) (val >> 0);
+       buf[3] = (uint8_t) (val >> 24);
+       buf[2] = (uint8_t) (val >> 16);
+       buf[1] = (uint8_t) (val >> 8);
+       buf[0] = (uint8_t) (val >> 0);
 }
 
-static inline void h_u32_to_be(u8* buf, int val)
+static inline void h_u32_to_be(uint8_t* buf, int val)
 {
-       buf[0] = (u8) (val >> 24);
-       buf[1] = (u8) (val >> 16);
-       buf[2] = (u8) (val >> 8);
-       buf[3] = (u8) (val >> 0);
+       buf[0] = (uint8_t) (val >> 24);
+       buf[1] = (uint8_t) (val >> 16);
+       buf[2] = (uint8_t) (val >> 8);
+       buf[3] = (uint8_t) (val >> 0);
 }
 
-static inline void h_u16_to_le(u8* buf, int val)
+static inline void h_u16_to_le(uint8_t* buf, int val)
 {
-       buf[1] = (u8) (val >> 8);
-       buf[0] = (u8) (val >> 0);
+       buf[1] = (uint8_t) (val >> 8);
+       buf[0] = (uint8_t) (val >> 0);
 }
 
-static inline void h_u16_to_be(u8* buf, int val)
+static inline void h_u16_to_be(uint8_t* buf, int val)
 {
-       buf[0] = (u8) (val >> 8);
-       buf[1] = (u8) (val >> 0);
+       buf[0] = (uint8_t) (val >> 8);
+       buf[1] = (uint8_t) (val >> 0);
 }
 
-#ifdef __ECOS
-/* eCos plain lacks this definition... */
+#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"
+
 typedef CYG_ADDRWORD intptr_t;
 typedef int64_t intmax_t;
 typedef uint64_t uintmax_t;
 #define INT8_MAX 0x7f
 #define INT8_MIN (-INT8_MAX - 1)
-#define UINT8_MAX (__CONCAT(INT8_MAX, U) * 2U + 1U)
+# define UINT8_MAX             (255)
 #define INT16_MAX 0x7fff
 #define INT16_MIN (-INT16_MAX - 1)
-#define UINT16_MAX (__CONCAT(INT16_MAX, U) * 2U + 1U)
+# define UINT16_MAX            (65535)
 #define INT32_MAX 0x7fffffffL
 #define INT32_MIN (-INT32_MAX - 1L)
-#define UINT32_MAX (__CONCAT(INT32_MAX, U) * 2UL + 1UL)
+# define UINT32_MAX            (4294967295U)
 #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
 
 #endif /* TYPES_H */