diff options
Diffstat (limited to 'zephyr/test/drivers/default/src/temp_sensor.c')
| -rw-r--r-- | zephyr/test/drivers/default/src/temp_sensor.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/zephyr/test/drivers/default/src/temp_sensor.c b/zephyr/test/drivers/default/src/temp_sensor.c new file mode 100644 index 0000000000..5caecc556c --- /dev/null +++ b/zephyr/test/drivers/default/src/temp_sensor.c @@ -0,0 +1,200 @@ +/* Copyright 2021 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include <zephyr/kernel.h> +#include <zephyr/ztest.h> +#include <zephyr/drivers/adc.h> +#include <zephyr/drivers/adc/adc_emul.h> +#include <zephyr/drivers/gpio.h> +#include <zephyr/drivers/gpio/gpio_emul.h> + +#include <math.h> + +#include "common.h" +#include "temp_sensor.h" +#include "temp_sensor/temp_sensor.h" +#include "test/drivers/test_state.h" + +#define GPIO_PG_EC_DSW_PWROK_PATH DT_PATH(named_gpios, pg_ec_dsw_pwrok) +#define GPIO_PG_EC_DSW_PWROK_PORT DT_GPIO_PIN(GPIO_PG_EC_DSW_PWROK_PATH, gpios) + +#define GPIO_EC_PG_PIN_TEMP_PATH DT_PATH(named_gpios, ec_pg_pin_temp) +#define GPIO_EC_PG_PIN_TEMP_PORT DT_GPIO_PIN(GPIO_EC_PG_PIN_TEMP_PATH, gpios) + +#define ADC_DEVICE_NODE DT_NODELABEL(adc0) +#define ADC_CHANNELS_NUM DT_PROP(DT_NODELABEL(adc0), nchannels) + +/** Test error code when invalid sensor is passed to temp_sensor_read() */ +ZTEST_USER(temp_sensor, test_temp_sensor_wrong_id) +{ + int temp; + + zassert_equal(EC_ERROR_INVAL, + temp_sensor_read(TEMP_SENSOR_COUNT, &temp), NULL); +} + +/** Test error code when temp_sensor_read() is called with powered off ADC */ +ZTEST_USER(temp_sensor, test_temp_sensor_adc_error) +{ + const struct device *gpio_dev = + DEVICE_DT_GET(DT_GPIO_CTLR(GPIO_PG_EC_DSW_PWROK_PATH, gpios)); + int temp; + + zassert_not_null(gpio_dev, "Cannot get GPIO device"); + + /* + * pg_ec_dsw_pwrok = 0 means ADC is not powered. + * adc_read will return error + */ + zassert_ok(gpio_emul_input_set(gpio_dev, GPIO_PG_EC_DSW_PWROK_PORT, 0), + NULL); + + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read( + TEMP_SENSOR_ID(DT_NODELABEL(named_temp_charger)), + &temp), + NULL); + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read( + TEMP_SENSOR_ID(DT_NODELABEL(named_temp_ddr_soc)), + &temp), + NULL); + zassert_equal( + EC_ERROR_NOT_POWERED, + temp_sensor_read(TEMP_SENSOR_ID(DT_NODELABEL(named_temp_fan)), + &temp), + NULL); + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read(TEMP_SENSOR_ID(DT_NODELABEL( + named_temp_pp3300_regulator)), + &temp), + NULL); + + /* power ADC */ + zassert_ok(gpio_emul_input_set(gpio_dev, GPIO_PG_EC_DSW_PWROK_PORT, 1), + NULL); +} + +/** Test error code when temp_sensor_read() is called power-good-pin low */ +ZTEST_USER(temp_sensor, test_temp_sensor_pg_pin) +{ + const struct device *gpio_dev = + DEVICE_DT_GET(DT_GPIO_CTLR(GPIO_EC_PG_PIN_TEMP_PATH, gpios)); + int temp; + + zassert_not_null(gpio_dev, "Cannot get GPIO device"); + + /* ec_pg_pin_temp = 0 means temperature sensors are not powered. */ + zassert_ok(gpio_emul_input_set(gpio_dev, GPIO_EC_PG_PIN_TEMP_PORT, 0), + NULL); + + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read( + TEMP_SENSOR_ID(DT_NODELABEL(named_temp_charger)), + &temp), + NULL); + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read( + TEMP_SENSOR_ID(DT_NODELABEL(named_temp_ddr_soc)), + &temp), + NULL); + zassert_equal( + EC_ERROR_NOT_POWERED, + temp_sensor_read(TEMP_SENSOR_ID(DT_NODELABEL(named_temp_fan)), + &temp), + NULL); + zassert_equal(EC_ERROR_NOT_POWERED, + temp_sensor_read(TEMP_SENSOR_ID(DT_NODELABEL( + named_temp_pp3300_regulator)), + &temp), + NULL); + + /* power ADC */ + zassert_ok(gpio_emul_input_set(gpio_dev, GPIO_EC_PG_PIN_TEMP_PORT, 1), + NULL); +} + +/** Simple ADC emulator custom function which always return error */ +static int adc_error_func(const struct device *dev, unsigned int channel, + void *param, uint32_t *result) +{ + return -EINVAL; +} + +/** + * Set valid response only for ADC channel connected with tested sensor. + * Check if temp_sensor_read() from tested sensor returns EC_SUCCESS and + * valid temperature. Set invalid response on ADC channel for next test. + */ +static void check_valid_temperature(const struct device *adc_dev, int sensor) +{ + int temp; + + /* ADC channel of tested sensor return valid value */ + zassert_ok(adc_emul_const_value_set(adc_dev, temp_sensors[sensor].idx, + 1000), + "adc_emul_const_value_set() failed (sensor %d)", sensor); + zassert_equal(EC_SUCCESS, temp_sensor_read(sensor, &temp), NULL); + zassert_within( + temp, 273 + 50, 51, + "Expected temperature in 0*C-100*C, got %d*C (sensor %d)", + temp - 273, sensor); + /* Return error on ADC channel of tested sensor */ + zassert_ok(adc_emul_value_func_set(adc_dev, temp_sensors[sensor].idx, + adc_error_func, NULL), + "adc_emul_value_func_set() failed (sensor %d)", sensor); +} + +/** Test if temp_sensor_read() returns temperature on success */ +ZTEST_USER(temp_sensor, test_temp_sensor_read) +{ + const struct device *adc_dev = DEVICE_DT_GET(ADC_DEVICE_NODE); + int chan; + + zassert_not_null(adc_dev, "Cannot get ADC device"); + + /* Return error on all ADC channels */ + for (chan = 0; chan < ADC_CHANNELS_NUM; chan++) { + zassert_ok(adc_emul_value_func_set(adc_dev, chan, + adc_error_func, NULL), + "channel %d adc_emul_value_func_set() failed", chan); + } + + check_valid_temperature( + adc_dev, TEMP_SENSOR_ID(DT_NODELABEL(named_temp_charger))); + check_valid_temperature( + adc_dev, TEMP_SENSOR_ID(DT_NODELABEL(named_temp_ddr_soc))); + check_valid_temperature(adc_dev, + TEMP_SENSOR_ID(DT_NODELABEL(named_temp_fan))); + check_valid_temperature(adc_dev, TEMP_SENSOR_ID(DT_NODELABEL( + named_temp_pp3300_regulator))); + + /* Return correct value on all ADC channels */ + for (chan = 0; chan < ADC_CHANNELS_NUM; chan++) { + zassert_ok(adc_emul_const_value_set(adc_dev, chan, 1000), + "channel %d adc_emul_const_value_set() failed", + chan); + } +} + +static void *temp_sensor_setup(void) +{ + const struct device *dev = + DEVICE_DT_GET(DT_GPIO_CTLR(GPIO_PG_EC_DSW_PWROK_PATH, gpios)); + const struct device *dev_pin = + DEVICE_DT_GET(DT_GPIO_CTLR(GPIO_EC_PG_PIN_TEMP_PATH, gpios)); + + zassert_not_null(dev, NULL); + /* Before tests make sure that power pins are set. */ + zassert_ok(gpio_emul_input_set(dev, GPIO_PG_EC_DSW_PWROK_PORT, 1), + NULL); + zassert_ok(gpio_emul_input_set(dev_pin, GPIO_EC_PG_PIN_TEMP_PORT, 1), + NULL); + + return NULL; +} + +ZTEST_SUITE(temp_sensor, drivers_predicate_post_main, temp_sensor_setup, NULL, + NULL, NULL); |