* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifndef TYPES_H
#define TYPES_H
+#include <stddef.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <inttypes.h>
#endif
-typedef struct jtag_tap_s jtag_tap_t;
-
#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#else /* HAVE_STDBOOL_H */
#endif /* HAVE_STDBOOL_H */
+/// turns a macro argument into a string constant
+#define stringify(s) __stringify(s)
+#define __stringify(s) #s
+
+
+/**
+ * Compute the number of elements of a variable length array.
+ * <code>
+ * const char *strs[] = { "a", "b", "c" };
+ * unsigned num_strs = ARRAY_SIZE(strs);
+ * </code>
+ */
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
+
+
+/**
+ * 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 *)( (void *) ( (char *)__mptr - offsetof(type,member) ) );})
+
+
+/**
+ * Rounds @c m up to the nearest multiple of @c n using division.
+ * @param m The value to round up to @c n.
+ * @param 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
return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
}
+static inline uint32_t le_to_h_u24(const uint8_t* buf)
+{
+ return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16);
+}
+
static inline uint16_t le_to_h_u16(const uint8_t* buf)
{
return (uint16_t)(buf[0] | buf[1] << 8);
return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
}
+static inline uint32_t be_to_h_u24(const uint8_t* buf)
+{
+ return (uint32_t)(buf[2] | buf[1] << 8 | buf[0] << 16);
+}
+
static inline uint16_t be_to_h_u16(const uint8_t* buf)
{
return (uint16_t)(buf[1] | buf[0] << 8);
buf[3] = (uint8_t) (val >> 0);
}
+static inline void h_u24_to_le(uint8_t* buf, int val)
+{
+ buf[2] = (uint8_t) (val >> 16);
+ buf[1] = (uint8_t) (val >> 8);
+ buf[0] = (uint8_t) (val >> 0);
+}
+
+static inline void h_u24_to_be(uint8_t* buf, int val)
+{
+ buf[0] = (uint8_t) (val >> 16);
+ buf[1] = (uint8_t) (val >> 8);
+ buf[2] = (uint8_t) (val >> 0);
+}
+
static inline void h_u16_to_le(uint8_t* buf, int val)
{
buf[1] = (uint8_t) (val >> 8);
buf[1] = (uint8_t) (val >> 0);
}
+/**
+ * Byte-swap buffer 16-bit.
+ *
+ * Len must be even, dst and src must be either the same or non-overlapping.
+ *
+ * @param dst Destination buffer.
+ * @param src Source buffer.
+ * @param len Length of source (and destination) buffer, in bytes.
+ */
+static inline void buf_bswap16(uint8_t *dst, const uint8_t *src, size_t len)
+{
+ assert(len % 2 == 0);
+ assert(dst == src || dst + len <= src || src + len <= dst);
+
+ for (size_t n = 0; n < len; n += 2) {
+ uint16_t x = be_to_h_u16(src + n);
+ h_u16_to_le(dst + n, x);
+ }
+}
+
+/**
+ * Byte-swap buffer 32-bit.
+ *
+ * Len must be divisible by four, dst and src must be either the same or non-overlapping.
+ *
+ * @param dst Destination buffer.
+ * @param src Source buffer.
+ * @param len Length of source (and destination) buffer, in bytes.
+ */
+static inline void buf_bswap32(uint8_t *dst, const uint8_t *src, size_t len)
+{
+ assert(len % 4 == 0);
+ assert(dst == src || dst + len <= src || src + len <= dst);
+
+ for (size_t n = 0; n < len; n += 4) {
+ uint32_t x = be_to_h_u32(src + n);
+ h_u32_to_le(dst + n, x);
+ }
+}
+
#if defined(__ECOS)
/* eCos plain lacks these definition... A series of upstream patches
#define SCNx32 "x"
#define PRIi32 "i"
#define PRIu32 "u"
+#define PRId8 PRId32
+#define SCNx64 "llx"
+#define PRIx64 "llx"
typedef CYG_ADDRWORD intptr_t;
typedef int64_t intmax_t;
#define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
#endif
- #ifndef LLONG_MAX
+ #ifndef LLONG_MAX
#define ULLONG_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
#define LLONG_MAX INT64_C(0x7FFFFFFFFFFFFFFF)
#define LLONG_MIN ULLONG_MAX
- #endif
+ #endif
#define ULLONG_MAX 18446744073709551615
projects / fw / openocd / blobdiff