Add system timer logic

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1700 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 24 insertions, 23 deletions

diff --git a/nuttx/arch/arm/src/dm320/dm320_timerisr.c b/nuttx/arch/arm/src/dm320/dm320_timerisr.c
index 603a66c91..59fa7581f 100644
--- a/nuttx/arch/arm/src/dm320/dm320_timerisr.c
+++ b/nuttx/arch/arm/src/dm320/dm320_timerisr.c
@@ -1,7 +1,8 @@
-/************************************************************
- * dm320/dm320_timerisr.c
+/****************************************************************************
+ * arch/arm/src/dm320/dm320_timerisr.c
+ * arch/arm/src/chip/dm320_timerisr.c
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +15,7 @@
  *    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
+ * 3. Neither the name NuttX nor the names of its contributors may be
  *    used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -31,11 +32,11 @@
  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Included Files
- ************************************************************/
+ ****************************************************************************/
 
 #include <nuttx/config.h>
 #include <sys/types.h>
@@ -45,9 +46,9 @@
 #include "up_internal.h"
 #include "up_arch.h"
 
-/************************************************************
+/****************************************************************************
  * Definitions
- ************************************************************/
+ ****************************************************************************/
 
 /* DM320 Timers
  *
@@ -92,26 +93,26 @@
 #define DM320_TMR0_DIV   26999                  /* (see above) */
 #define DM320_TMR0_PRSCL 9                      /* (see above) */
 
-/************************************************************
+/****************************************************************************
  * Private Types
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Private Function Prototypes
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Global Functions
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
  * Function:  up_timerisr
  *
  * Description:
- *   The timer ISR will perform a variety of services for
- *   various portions of the systems.
+ *   The timer ISR will perform a variety of services for various portions
+ *   of the systems.
  *
- ************************************************************/
+ ****************************************************************************/
 
 int up_timerisr(int irq, uint32 *regs)
 {
@@ -121,14 +122,14 @@ int up_timerisr(int irq, uint32 *regs)
    return 0;
 }
 
-/************************************************************
+/****************************************************************************
  * Function:  up_timerinit
  *
  * Description:
- *   This function is called during start-up to initialize
- *   the timer interrupt.
+ *   This function is called during start-up to initialize the timer
+ *   interrupt.
  *
- ************************************************************/
+ ****************************************************************************/
 
 void up_timerinit(void)
 {