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Diffstat (limited to 'c/src/lib/libbsp/arm/smdk2410/timer/timer.c')
-rw-r--r--c/src/lib/libbsp/arm/smdk2410/timer/timer.c100
1 files changed, 0 insertions, 100 deletions
diff --git a/c/src/lib/libbsp/arm/smdk2410/timer/timer.c b/c/src/lib/libbsp/arm/smdk2410/timer/timer.c
deleted file mode 100644
index 2bc599df75..0000000000
--- a/c/src/lib/libbsp/arm/smdk2410/timer/timer.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/**
- * @file
- * @brief S3C2400 Timer driver
- *
- * This uses timer 1 for timing measurments.
- */
-
-/*
- * 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.
- */
-
-#include <bsp.h>
-#include <rtems.h>
-#include <rtems/btimer.h>
-#include <s3c24xx.h>
-
-uint32_t g_start;
-uint32_t g_freq;
-
-bool benchmark_timer_find_average_overhead;
-
-
-/*
- * Set up Timer 1
- */
-void benchmark_timer_initialize( void )
-{
- uint32_t cr;
-
- /* stop TIMER1*/
- cr=rTCON & 0xFFFFF0FF;
- rTCON=(cr | (0x0 << 8));
-
- /* set MUX for Timer1 to 1/2 */
- cr=rTCFG1 & 0xFFFFFF0F;
- rTCFG1=(cr | (0<<4));
-
- /* input freq=PLCK/2 Mhz*/
- g_freq = get_PCLK() / 2000;
- rTCNTB1 = 0xFFFF;
-
- /* start TIMER1 with manual reload */
- cr=rTCON & 0xFFFFF0FF;
- rTCON=(cr | (0x1 << 9));
- rTCON=(cr | (0x1 << 8));
-
- g_start = rTCNTO1;
-}
-
-/*
- * 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 0 /* It typically takes X.X microseconds */
- /* (Y countdowns) to start/stop the timer. */
- /* This value is in microseconds. */
-#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
-
-benchmark_timer_t benchmark_timer_read( void )
-{
- uint32_t t;
- unsigned long long total;
-
- t = rTCNTO1;
- /*
- * Total is calculated by taking into account the number of timer overflow
- * interrupts since the timer was initialized and clicks since the last
- * interrupts.
- */
-
- total = (g_start - t);
-
- /* convert to microseconds */
- total = (total*1000) / g_freq;
-
- if ( benchmark_timer_find_average_overhead == 1 ) {
- return (int) total;
- } else if ( total < LEAST_VALID ) {
- return 0;
- }
-
- /*
- * 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;
-}
-