From 26f0e5d1d20da1cd4ffb83c603273b2ac32a670f Mon Sep 17 00:00:00 2001 From: Vic Yang Date: Fri, 17 May 2013 12:25:05 +0800 Subject: Revert "Revert "Add thermal engine test"" This reverts commit 89e688a3325e91d3c59ac639f04f2c91019c9b10. Time-scaling is added back. We can run this test now. BUG=chrome-os-partner:19236 TEST=Pass the test. BRANCH=None Change-Id: Id3dcec6fc12489f5f0602de91c6560a8dfbef9af Signed-off-by: Vic Yang Reviewed-on: https://gerrit.chromium.org/gerrit/51551 Reviewed-by: Vincent Palatin --- test/thermal.c | 236 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 236 insertions(+) create mode 100644 test/thermal.c (limited to 'test/thermal.c') diff --git a/test/thermal.c b/test/thermal.c new file mode 100644 index 0000000000..7af14038ed --- /dev/null +++ b/test/thermal.c @@ -0,0 +1,236 @@ +/* Copyright (c) 2013 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. + * + * Test thermal engine. + */ + +#include "board.h" +#include "common.h" +#include "console.h" +#include "hooks.h" +#include "host_command.h" +#include "temp_sensor.h" +#include "test_util.h" +#include "thermal.h" +#include "timer.h" +#include "util.h" + +static int mock_temp[TEMP_SENSOR_COUNT]; +static int fan_rpm; +static int cpu_throttled; +static int cpu_down; + +extern struct thermal_config_t thermal_config[TEMP_SENSOR_TYPE_COUNT]; +extern const int fan_speed[THERMAL_FAN_STEPS + 1]; + +/*****************************************************************************/ +/* Mock functions */ + +int temp_sensor_read(enum temp_sensor_id id, int *temp_ptr) +{ + if (mock_temp[id] >= 0) { + *temp_ptr = mock_temp[id]; + return EC_SUCCESS; + } else { + return -mock_temp[id]; + } +} + +void pwm_set_fan_rpm_mode(int rpm_mode) +{ + /* Do nothing */ +} + +void pwm_set_fan_target_rpm(int rpm) +{ + fan_rpm = rpm; +} + +void chipset_force_shutdown(void) +{ + cpu_down = 1; +} + +void chipset_throttle_cpu(int throttled) +{ + cpu_throttled = throttled; +} + +/*****************************************************************************/ +/* Test utilities */ + +/* Test shorthands */ +#define T_CPU TEMP_SENSOR_CPU +#define T_BOARD TEMP_SENSOR_BOARD +#define T_CASE TEMP_SENSOR_CASE +#define THRESHOLD(x, y) (thermal_config[x].thresholds[y]) +#define FAN_THRESHOLD(x, y) THRESHOLD(x, THRESHOLD_COUNT + (y)) + +static void reset_mock_temp(void) +{ + int i; + enum temp_sensor_type type; + for (i = 0; i < TEMP_SENSOR_COUNT; ++i) { + type = temp_sensors[i].type; + mock_temp[i] = FAN_THRESHOLD(type, 0) - 1; + } +} + +static int wait_fan_rpm(int rpm, int timeout_secs) +{ + do { + if (fan_rpm == rpm) + return 1; + usleep(SECOND); + } while (timeout_secs--); + + return 0; +} + +static int wait_value(int *v, int target, int timeout_secs) +{ + do { + if (*v == target) + return 1; + usleep(SECOND); + } while (timeout_secs--); + + return 0; +} + +static int wait_set(int *v, int timeout_secs) +{ + return wait_value(v, 1, timeout_secs); +} + +static int wait_clear(int *v, int timeout_secs) +{ + return wait_value(v, 0, timeout_secs); +} + +/*****************************************************************************/ +/* Tests */ + +static int test_init_val(void) +{ + /* Initial mock temperature values are all zero. */ + TEST_ASSERT(cpu_throttled == 0); + TEST_ASSERT(cpu_down == 0); + TEST_ASSERT(!(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_OVERLOAD))); + TEST_ASSERT(!(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_SHUTDOWN))); + + return EC_SUCCESS; +} + +static int test_cpu_fan(void) +{ + reset_mock_temp(); + + /* + * Increase CPU temperature to first fan step and check if + * the fan comes up. + */ + mock_temp[T_CPU] = FAN_THRESHOLD(T_CPU, 0); + TEST_ASSERT(wait_fan_rpm(fan_speed[1], 11)); + + /* Increase CPU temperature to second fan step */ + mock_temp[T_CPU] = FAN_THRESHOLD(T_CPU, 1); + TEST_ASSERT(wait_fan_rpm(fan_speed[2], 11)); + + /* Test threshold hysteresis */ + mock_temp[T_CPU]--; + usleep(15 * SECOND); + TEST_ASSERT(fan_rpm == fan_speed[2]); + + /* Test action delay */ + mock_temp[T_CPU] = FAN_THRESHOLD(T_CPU, 4); + usleep((temp_sensors[T_CPU].action_delay_sec - 1) * SECOND); + TEST_ASSERT(fan_rpm == fan_speed[2]); + mock_temp[T_CPU] = FAN_THRESHOLD(T_CPU, 0); + + return EC_SUCCESS; +} + +static int test_safety(void) +{ + reset_mock_temp(); + + /* Trigger CPU throttling */ + mock_temp[T_CPU] = THRESHOLD(T_CPU, THRESHOLD_WARNING); + TEST_ASSERT(wait_set(&cpu_throttled, 11)); + TEST_ASSERT(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_OVERLOAD)); + + /* Lower temperature. CPU not throttled anymore. */ + mock_temp[T_CPU] = THRESHOLD(T_CPU, THRESHOLD_WARNING) - 5; + TEST_ASSERT(wait_clear(&cpu_throttled, 2)); + + /* Thermal shutdown */ + mock_temp[T_CPU] = THRESHOLD(T_CPU, THRESHOLD_CPU_DOWN); + TEST_ASSERT(wait_set(&cpu_down, 11)); + TEST_ASSERT(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_SHUTDOWN)); + + mock_temp[T_CPU] = 0; + usleep(SECOND); + cpu_down = 0; + + mock_temp[T_CPU] = THRESHOLD(T_CPU, THRESHOLD_POWER_DOWN); + TEST_ASSERT(wait_set(&cpu_down, 11)); + TEST_ASSERT(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_SHUTDOWN)); + + return EC_SUCCESS; +} + +static int test_sensor_failure(void) +{ + reset_mock_temp(); + + /* Failure due to sensor not powered should be ignored */ + mock_temp[T_CPU] = -EC_ERROR_NOT_POWERED; + usleep(5 * SECOND); + TEST_ASSERT(!(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL))); + + /* Other failure should be pumped up to host */ + mock_temp[T_CPU] = -EC_ERROR_UNKNOWN; + usleep(5 * SECOND); + TEST_ASSERT(host_get_events() & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL)); + + return EC_SUCCESS; +} + +static int check_assumption(void) +{ + TEST_ASSERT((int)TEMP_SENSOR_CPU == (int)TEMP_SENSOR_TYPE_CPU); + TEST_ASSERT((int)TEMP_SENSOR_BOARD == (int)TEMP_SENSOR_TYPE_BOARD); + TEST_ASSERT((int)TEMP_SENSOR_CASE == (int)TEMP_SENSOR_TYPE_CASE); + + TEST_ASSERT(temp_sensors[T_CPU].action_delay_sec != 0); + + TEST_ASSERT(thermal_config[T_CPU].config_flags & + THERMAL_CONFIG_WARNING_ON_FAIL); + + return EC_SUCCESS; +} + +void run_test(void) +{ + test_reset(); + + /* Test assumptions */ + RUN_TEST(check_assumption); + + RUN_TEST(test_init_val); + RUN_TEST(test_cpu_fan); + /* No tests for board and case temp sensors as they are ignored. */ + RUN_TEST(test_safety); + RUN_TEST(test_sensor_failure); + + test_print_result(); +} -- cgit v1.2.1