/* 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 #include #include #include #include #include #include #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);