RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

2008-08-31 Joel Sherrill <joel.sherrill@oarcorp.com>

Browse Source 
* timer/timer.c, timer/timerisr.c: Rename timer driver methods to
	follow RTEMS programming conventions.
This commit is contained in:
Joel Sherrill
2008-08-31 16:02:11 +00:00
parent 9856277be2
commit e6778bc860
3 changed files with 16 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
c/src/lib/libbsp/no_cpu/no_bsp/ChangeLog
View File

@@ -1,3 +1,8 @@
2008-08-31 Joel Sherrill <joel.sherrill@oarcorp.com>
* timer/timer.c, timer/timerisr.c: Rename timer driver methods to
follow RTEMS programming conventions.
2008-05-15 Joel Sherrill <joel.sherrill@OARcorp.com> 2008-05-15 Joel Sherrill <joel.sherrill@OARcorp.com>
* startup/bspstart.c: Add capability for bootcard.c BSP Initialization * startup/bspstart.c: Add capability for bootcard.c BSP Initialization

20
c/src/lib/libbsp/no_cpu/no_bsp/timer/timer.c
View File

@@ -2,8 +2,8 @@
* *
* This file manages the benchmark timer used by the RTEMS Timing Test * This file manages the benchmark timer used by the RTEMS Timing Test
* Suite. Each measured time period is demarcated by calls to * Suite. Each measured time period is demarcated by calls to
* Timer_initialize() and Read_timer(). Read_timer() usually returns * benchmark_timerinitialize() and benchmark_timerread(). benchmark_timerread() usually returns
* the number of microseconds since Timer_initialize() exitted. * the number of microseconds since benchmark_timerinitialize() exitted.
* *
* NOTE: It is important that the timer start/stop overhead be * NOTE: It is important that the timer start/stop overhead be
* determined when porting or modifying this code. * determined when porting or modifying this code.
@@ -22,9 +22,9 @@
#include <bsp.h> #include <bsp.h>
uint32_t Timer_interrupts; uint32_t Timer_interrupts;
rtems_boolean Timer_driver_Find_average_overhead; rtems_boolean benchmark_timerfind_average_overhead;
void Timer_initialize( void ) void benchmark_timerinitialize( void )
{ {
/* /*
@@ -40,7 +40,7 @@ void Timer_initialize( void )
} }
/* /*
* The following controls the behavior of Read_timer(). * The following controls the behavior of benchmark_timerread().
* *
* AVG_OVEREHAD is the overhead for starting and stopping the timer. It * AVG_OVEREHAD is the overhead for starting and stopping the timer. It
* is usually deducted from the number returned. * is usually deducted from the number returned.
@@ -54,7 +54,7 @@ void Timer_initialize( void )
/* This value is in microseconds. */ /* This value is in microseconds. */
#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */ #define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
int Read_timer( void ) int benchmark_timerread( void )
{ {
uint32_t clicks; uint32_t clicks;
uint32_t total; uint32_t total;
@@ -73,7 +73,7 @@ int Read_timer( void )
total = clicks * 0; total = clicks * 0;
if ( Timer_driver_Find_average_overhead == 1 ) if ( benchmark_timerfind_average_overhead == 1 )
return total; /* in XXX microsecond units */ return total; /* in XXX microsecond units */
else { else {
if ( total < LEAST_VALID ) if ( total < LEAST_VALID )
@@ -90,14 +90,14 @@ int Read_timer( void )
* in Timing Test Suite. * in Timing Test Suite.
*/ */
rtems_status_code Empty_function( void ) rtems_status_code benchmark_timerempty_function( void )
{ {
return RTEMS_SUCCESSFUL; return RTEMS_SUCCESSFUL;
} }
void Set_find_average_overhead( void benchmark_timerdisable_subtracting_average_overhead(
rtems_boolean find_flag rtems_boolean find_flag
) )
{ {
Timer_driver_Find_average_overhead = find_flag; benchmark_timerfind_average_overhead = find_flag;
} }

2
c/src/lib/libbsp/no_cpu/no_bsp/timer/timerisr.c
View File

@@ -2,7 +2,7 @@
* *
* If required this ISR is used to bump a count of interval "overflow" * If required this ISR is used to bump a count of interval "overflow"
* interrupts which have occurred since the timer was started. The * interrupts which have occurred since the timer was started. The
* number of overflows is taken into account in the Read_timer() * number of overflows is taken into account in the benchmark_timerread()
* routine if necessary. * routine if necessary.
* *
* To reduce overhead this is best to be the "rawest" hardware interupt * To reduce overhead this is best to be the "rawest" hardware interupt