Added network init; refactored some header files

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@338 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 121 insertions, 0 deletions

diff --git a/nuttx/include/nuttx/clock.h b/nuttx/include/nuttx/clock.h
new file mode 100644
index 000000000..b57b8e4f8
--- /dev/null
+++ b/nuttx/include/nuttx/clock.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+ * nuttx/clock.h
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name Gregory Nutt nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __NUTTX_CLOCK_H
+#define __NUTTX_CLOCK_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Timing constants */
+
+#define NSEC_PER_SEC          1000000000
+#define USEC_PER_SEC             1000000
+#define MSEC_PER_SEC                1000
+#define DSEC_PER_SEC                  10
+#define NSEC_PER_DSEC          100000000
+#define USEC_PER_DSEC             100000
+#define MSEC_PER_DSEC                100
+#define NSEC_PER_MSEC            1000000
+#define USEC_PER_MSEC               1000
+#define NSEC_PER_USEC               1000
+
+/* The interrupt interval of the system timer is given by MSEC_PER_TICK.
+ * This is the expected number of milliseconds between calls from the
+ * processor-specific logic to sched_process_timer().  The default value
+ * of MSEC_PER_TICK is 10 milliseconds (100KHz).  However, this default
+ * setting can be overridden by defining the interval in milliseconds as
+ * CONFIG_MSEC_PER_TICK in the board configuration file.
+ *
+ * The following calculations are only accurate when (1) there is no
+ * truncation involved and (2) the underlying system timer is an even
+ * multiple of milliseconds.  If (2) is not true, you will probably want
+ * to redefine all of the following.
+ */
+
+#ifdef CONFIG_MSEC_PER_TICK
+# define MSEC_PER_TICK        (CONFIG_MSEC_PER_TICK)
+#else
+# define MSEC_PER_TICK        (10)
+#endif
+
+#define TICK_PER_SEC          (MSEC_PER_SEC / MSEC_PER_TICK)             /* Truncates! */
+#define NSEC_PER_TICK         (MSEC_PER_TICK * NSEC_PER_MSEC)            /* Exact */
+#define USEC_PER_TICK         (MSEC_PER_TICK * USEC_PER_MSEC)            /* Exact */
+
+#define NSEC2TICK(nsec)       (((nsec)+(NSEC_PER_TICK/2))/NSEC_PER_TICK) /* Rounds */
+#define USEC2TICK(usec)       (((usec)+(USEC_PER_TICK/2))/USEC_PER_TICK) /* Rounds */
+#define MSEC2TICK(msec)       (((msec)+(MSEC_PER_TICK/2))/MSEC_PER_TICK) /* Rounds */
+#define DSEC2TICK(dsec)       MSEC2TICK((dsec)*MSEC_PER_DSEC)
+#define SEC2TICK(sec)         MSEC2TICK((sec)*MSEC_PER_SEC)
+
+/****************************************************************************
+ * Global Data
+ ****************************************************************************/
+
+/* Access to raw system clock ***********************************************/
+
+#ifndef CONFIG_DISABLE_CLOCK
+extern volatile uint32 g_system_timer;
+#endif
+
+/****************************************************************************
+ * Global Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __NUTTX_CLOCK_H */