diff options
Diffstat (limited to 'test/timer_calib.c')
-rw-r--r-- | test/timer_calib.c | 62 |
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); -} |