summaryrefslogtreecommitdiff
path: root/test/timer_calib.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/timer_calib.c')
-rw-r--r--test/timer_calib.c62
1 files changed, 0 insertions, 62 deletions
diff --git a/test/timer_calib.c b/test/timer_calib.c
deleted file mode 100644
index 68603762fe..0000000000
--- a/test/timer_calib.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Copyright 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * Tasks for scheduling test.
- */
-
-#include "common.h"
-#include "console.h"
-#include "task.h"
-#include "timer.h"
-#include "util.h"
-
-uint32_t difftime(timestamp_t t0, timestamp_t t1)
-{
- return (uint32_t)(t1.val-t0.val);
-}
-
-int timer_calib_task(void *data)
-{
- timestamp_t t0, t1;
- unsigned d;
-
- while (1) {
- task_wait_event(-1);
-
- ccprintf("\n=== Timer calibration ===\n");
-
- t0 = get_time();
- t1 = get_time();
- ccprintf("- back-to-back get_time : %d us\n", difftime(t0, t1));
-
- /* Sleep for 5 seconds */
- ccprintf("- sleep 1s :\n ");
- cflush();
- ccprintf("Go...");
- t0 = get_time();
- usleep(1000000);
- t1 = get_time();
- ccprintf("done. delay = %d us\n", difftime(t0, t1));
-
- /* try small usleep */
- ccprintf("- short sleep :\n");
- cflush();
- for (d = 128; d > 0; d = d / 2) {
- t0 = get_time();
- usleep(d);
- t1 = get_time();
- ccprintf(" %d us => %d us\n", d, difftime(t0, t1));
- cflush();
- }
-
- ccprintf("Done.\n");
- }
-
- return EC_SUCCESS;
-}
-
-void run_test(int argc, char **argv)
-{
- task_wake(TASK_ID_TESTTMR);
-}