bsps: Move benchmark timer to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

2 files changed, 1 insertions, 112 deletions

diff --git a/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am b/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
index 0ea3b97df1..70950b8e0b 100644
--- a/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
+++ b/c/src/lib/libbsp/lm32/lm32_evr/Makefile.am
@@ -33,7 +33,7 @@ librtemsbsp_a_SOURCES +=../../../../../../bsps/lm32/shared/clock/ckinit.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/lm32/shared/console/console.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/lm32/shared/console/uart.c
 # timer
-librtemsbsp_a_SOURCES += ../shared/timer/timer.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/lm32/shared/btimer/btimer.c
 
 # Cache
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/cache/nocache.c
diff --git a/c/src/lib/libbsp/lm32/shared/timer/timer.c b/c/src/lib/libbsp/lm32/shared/timer/timer.c
deleted file mode 100644
index e1980a7077..0000000000
--- a/c/src/lib/libbsp/lm32/shared/timer/timer.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*  timer.c
- *
- *  This file manages the benchmark timer used by the RTEMS Timing
- *  Test Suite.  Each measured time period is demarcated by calls to
- *  benchmark_timer_initialize() and benchmark_timer_read().
- *  benchmark_timer_read() usually returns the number of microseconds
- *  since benchmark_timer_initialize() exitted.
- *
- *  NOTE: It is important that the timer start/stop overhead be
- *        determined when porting or modifying this code.
- *
- *  COPYRIGHT (c) 1989-1999.
- *  On-Line Applications Research Corporation (OAR).
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.org/license/LICENSE.
- *
- *  Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
- *  Micro-Research Finland Oy
- */
-
-#include <rtems.h>
-#include <bsp.h>
-#include <rtems/btimer.h>
-#include <rtems/bspIo.h>
-#include "../include/system_conf.h"
-#include "../../shared/clock/clock.h"
-
-static inline int timerread(unsigned int reg)
-{
-#if ON_SIMULATOR && defined(TIMER0_BASE_ADDRESS)
-  return *((int*)(TIMER0_BASE_ADDRESS + reg));
-#elif defined(TIMER1_BASE_ADDRESS)
-  return *((int*)(TIMER1_BASE_ADDRESS + reg));
-#else
-#warning "Benchmarking timer not available!"
-  return 0;
-#endif
-}
-
-static inline void timerwrite(unsigned int reg, int value)
-{
-#if ON_SIMULATOR && defined(TIMER0_BASE_ADDRESS)
-  *((int*)(TIMER0_BASE_ADDRESS + reg)) = value;
-#elif defined(TIMER1_BASE_ADDRESS)
-  *((int*)(TIMER1_BASE_ADDRESS + reg)) = value;
-#endif
-}
-
-bool benchmark_timer_find_average_overhead;
-
-void benchmark_timer_initialize( void )
-{
-  /* Set timer period */
-  timerwrite(LM32_CLOCK_PERIOD, 0xffffffff);
-  /* Stop timer */
-  timerwrite(LM32_CLOCK_CR, LM32_CLOCK_CR_STOP);
-  /* Clear status register */
-  timerwrite(LM32_CLOCK_SR, 0);
-  /* Start timer */
-  timerwrite(LM32_CLOCK_CR, LM32_CLOCK_CR_START);
-}
-
-/*
- *  The following controls the behavior of benchmark_timer_read().
- *
- *  AVG_OVEREHAD is the overhead for starting and stopping the timer.  It
- *  is usually deducted from the number returned.
- *
- *  LEAST_VALID is the lowest number this routine should trust.  Numbers
- *  below this are "noise" and zero is returned.
- */
-
-#define AVG_OVERHEAD      4  /* It typically takes X.X microseconds */
-                             /* (Y countdowns) to start/stop the timer. */
-                             /* This value is in microseconds. */
-#define LEAST_VALID       4  /* Don't trust a clicks value lower than this */
-
-benchmark_timer_t benchmark_timer_read( void )
-{
-  uint32_t ticks;
-  uint32_t total;
-  uint32_t status;
-
-  ticks = 0xffffffff - timerread(LM32_CLOCK_SNAPSHOT);
-  status = timerread(LM32_CLOCK_SR);
-  if (status & LM32_CLOCK_SR_TO)
-    printk("Timer overflow!\n");
-
-  total = ticks / (CPU_FREQUENCY / 1000000);
-
-  if ( benchmark_timer_find_average_overhead == true )
-    return total;          /* in XXX microsecond units */
-  else
-    {
-      if ( total < LEAST_VALID )
-	return 0;            /* below timer resolution */
-      /*
-       *  Somehow convert total into microseconds
-       */
-      return (total - AVG_OVERHEAD);
-    }
-}
-
-void benchmark_timer_disable_subtracting_average_overhead(
-  bool find_flag
-)
-{
-  benchmark_timer_find_average_overhead = find_flag;
-}