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7f4018c41f
This patch splits struct fan_t into two parts: base configuration and RPM configuration. RPMs are expected to be different from model to model while a base configuration is most likely shared. BUG=b:73720175 BRANCH=none TEST=make buildall Change-Id: Iff17573f110e07e88d097dd848cf91ee98b83176 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/949382 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Test thermal engine.
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*/
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#include "common.h"
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#include "console.h"
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#include "fan.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "printf.h"
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#include "temp_sensor.h"
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#include "test_util.h"
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#include "thermal.h"
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#include "timer.h"
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#include "util.h"
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#define FAN_RPM(fan) fans[fan].rpm
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/*****************************************************************************/
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/* Tests */
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static int test_fan(void)
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{
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/* "actual" fan speed from board/host/fan.c */
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extern int mock_rpm;
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sleep(2);
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/* With nothing else to do, fans default to full-on */
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_max);
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/*
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* fan_set_percent_needed() is normally called once a second by the
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* thermal task, but we're not using a thermal test in this test so
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* we can dink around with the fans without having to wait. The host
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* implementation just sets mock_rpm to whatever it's asked for.
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*/
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/* Off */
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fan_set_percent_needed(0, 0);
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TEST_ASSERT(fan_get_rpm_actual(0) == 0);
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fan_set_percent_needed(0, 0);
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TEST_ASSERT(fan_get_rpm_actual(0) == 0);
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/* On, but just barely */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_start);
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/* fan is above min speed now, so should be set to min */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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/* Full speed */
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fan_set_percent_needed(0, 100);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_max);
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fan_set_percent_needed(0, 100);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_max);
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/* Slow again */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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/* Off */
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fan_set_percent_needed(0, 0);
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TEST_ASSERT(fan_get_rpm_actual(0) == 0);
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fan_set_percent_needed(0, 0);
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TEST_ASSERT(fan_get_rpm_actual(0) == 0);
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/* On, but just barely */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_start);
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/* Force the mock_rpm to be slow, to simulate dragging */
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mock_rpm = FAN_RPM(0)->rpm_min - 105;
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/* It should keep trying for the start speed */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_start);
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/* But we have to keep forcing the mock_rpm back down */
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mock_rpm = FAN_RPM(0)->rpm_min - 105;
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_start);
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/* Now let it turn just under rpm_min. Should be okay there. */
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mock_rpm = FAN_RPM(0)->rpm_min - 10;
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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/* Let it go a little faster, still okay */
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mock_rpm = FAN_RPM(0)->rpm_min + 10;
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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/* But if it drops too low, it should go back to the start speed */
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mock_rpm = FAN_RPM(0)->rpm_min - 105;
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_start);
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/* And then relax */
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fan_set_percent_needed(0, 1);
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TEST_ASSERT(fan_get_rpm_actual(0) == FAN_RPM(0)->rpm_min);
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return EC_SUCCESS;
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}
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void run_test(void)
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{
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RUN_TEST(test_fan);
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test_print_result();
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}
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