diff options
Diffstat (limited to 'zephyr/test/drivers/keyboard_scan/src/keyboard_backlight.c')
| -rw-r--r-- | zephyr/test/drivers/keyboard_scan/src/keyboard_backlight.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/zephyr/test/drivers/keyboard_scan/src/keyboard_backlight.c b/zephyr/test/drivers/keyboard_scan/src/keyboard_backlight.c new file mode 100644 index 0000000000..149f25dfdd --- /dev/null +++ b/zephyr/test/drivers/keyboard_scan/src/keyboard_backlight.c @@ -0,0 +1,134 @@ +/* Copyright 2022 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include <stdint.h> +#include <string.h> +#include <zephyr/ztest.h> +#include <zephyr/kernel.h> +#include <zephyr/shell/shell_dummy.h> +#include <zephyr/ztest_assert.h> + +#include "console.h" +#include "host_command.h" +#include "keyboard_backlight.h" +#include "test/drivers/test_state.h" + +/** + * @brief Send host command to set the backlight percentage + * + * @param percent Backlight intensity, from 0 to 100 (inclusive). + * @return uint16_t Host command return code + */ +static uint16_t set_backlight_percent_helper(uint8_t percent) +{ + struct ec_params_pwm_set_keyboard_backlight params = { + .percent = percent + }; + struct host_cmd_handler_args args = BUILD_HOST_COMMAND_PARAMS( + EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT, 0, params); + + return host_command_process(&args); +} + +ZTEST(keyboard_backlight, host_command_set_backlight__normal) +{ + /* Set the backlight intensity level to this and verify */ + uint8_t expected_percentage = 50; + + zassert_ok(set_backlight_percent_helper(expected_percentage), NULL); + zassert_equal(expected_percentage, kblight_get(), NULL); +} + +ZTEST(keyboard_backlight, host_command_set_backlight__out_of_range) +{ + /* Too high */ + uint8_t expected_percentage = 101; + + zassert_equal(EC_RES_ERROR, + set_backlight_percent_helper(expected_percentage), NULL); +} + +ZTEST(keyboard_backlight, host_command_get_backlight__normal) +{ + /* Set this backlight intensity and verify via host command */ + uint8_t expected_percentage = 50; + int ret; + + zassume_ok(set_backlight_percent_helper(expected_percentage), NULL); + + /* Brief delay to allow a deferred function to enable the backlight */ + k_sleep(K_MSEC(50)); + + struct ec_response_pwm_get_keyboard_backlight response; + struct host_cmd_handler_args args = BUILD_HOST_COMMAND_RESPONSE( + EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT, 0, response); + + ret = host_command_process(&args); + zassert_ok(ret, "Host command failed: %d", ret); + zassert_equal(expected_percentage, response.percent, NULL); + zassert_equal(1, response.enabled, "Got 0x%02x", response.enabled); +} + +ZTEST(keyboard_backlight, console_command__noargs) +{ + /* Command should print current status. Set backlight on and to 70% */ + + const char *outbuffer; + size_t buffer_size; + + zassume_ok(set_backlight_percent_helper(70), NULL); + k_sleep(K_MSEC(50)); + + /* With no args, print current state */ + shell_backend_dummy_clear_output(get_ec_shell()); + zassert_ok(shell_execute_cmd(get_ec_shell(), "kblight"), NULL); + outbuffer = + shell_backend_dummy_get_output(get_ec_shell(), &buffer_size); + + zassert_ok(!strstr(outbuffer, "Keyboard backlight: 70% enabled: 1"), + "Actual string: `%s`", outbuffer); +} + +ZTEST(keyboard_backlight, console_command__set_on) +{ + /* Command should enable backlight to given intensity */ + + zassert_ok(shell_execute_cmd(get_ec_shell(), "kblight 65"), NULL); + zassert_equal(65, kblight_get(), NULL); + zassert_equal(1, kblight_get_current_enable(), NULL); +} + +ZTEST(keyboard_backlight, console_command__set_off) +{ + zassume_ok(set_backlight_percent_helper(40), NULL); + k_sleep(K_MSEC(50)); + + /* Turn back off */ + zassert_ok(shell_execute_cmd(get_ec_shell(), "kblight 0"), NULL); + zassert_equal(0, kblight_get(), NULL); + zassert_equal(0, kblight_get_current_enable(), NULL); +} + +ZTEST(keyboard_backlight, console_command__bad_params) +{ + zassert_equal(EC_ERROR_PARAM1, + shell_execute_cmd(get_ec_shell(), "kblight NaN"), NULL); + zassert_equal(EC_ERROR_PARAM1, + shell_execute_cmd(get_ec_shell(), "kblight -1"), NULL); + zassert_equal(EC_ERROR_PARAM1, + shell_execute_cmd(get_ec_shell(), "kblight 101"), NULL); +} + +static void reset(void *data) +{ + ARG_UNUSED(data); + + /* Reset the backlight to off and 0% brightness */ + kblight_set(0); + kblight_enable(0); +} + +ZTEST_SUITE(keyboard_backlight, drivers_predicate_post_main, NULL, reset, reset, + NULL); |