diff options
Diffstat (limited to 'zephyr/projects/corsola/src/kingler/led_steelix.c')
| -rw-r--r-- | zephyr/projects/corsola/src/kingler/led_steelix.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/zephyr/projects/corsola/src/kingler/led_steelix.c b/zephyr/projects/corsola/src/kingler/led_steelix.c new file mode 100644 index 0000000000..87b76128e8 --- /dev/null +++ b/zephyr/projects/corsola/src/kingler/led_steelix.c @@ -0,0 +1,181 @@ +/* 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. + * + * Battery LED control for Steelix + */ + +#include <zephyr/drivers/pwm.h> +#include <zephyr/logging/log.h> + +#include "board_led.h" +#include "common.h" +#include "cros_cbi.h" +#include "led_common.h" +#include "led_onoff_states.h" +#include "util.h" + +LOG_MODULE_REGISTER(board_led, LOG_LEVEL_ERR); + +#define BOARD_LED_PWM_PERIOD_NS BOARD_LED_HZ_TO_PERIOD_NS(100) + +static const struct board_led_pwm_dt_channel board_led_battery_red = + BOARD_LED_PWM_DT_CHANNEL_INITIALIZER(DT_NODELABEL(led_battery_red)); +static const struct board_led_pwm_dt_channel board_led_battery_green = + BOARD_LED_PWM_DT_CHANNEL_INITIALIZER(DT_NODELABEL(led_battery_green)); +static const struct board_led_pwm_dt_channel board_led_power_white = + BOARD_LED_PWM_DT_CHANNEL_INITIALIZER(DT_NODELABEL(led_power_white)); + +__override const int led_charge_lvl_1 = 5; +__override const int led_charge_lvl_2 = 97; +__override struct led_descriptor + led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = { + [STATE_CHARGING_LVL_1] = { { EC_LED_COLOR_RED, + LED_INDEFINITE } }, + [STATE_CHARGING_LVL_2] = { { EC_LED_COLOR_AMBER, + LED_INDEFINITE } }, + [STATE_CHARGING_FULL_CHARGE] = { { EC_LED_COLOR_GREEN, + LED_INDEFINITE } }, + [STATE_DISCHARGE_S0] = { { LED_OFF, LED_INDEFINITE } }, + [STATE_DISCHARGE_S0_BAT_LOW] = { { LED_OFF, LED_INDEFINITE } }, + [STATE_DISCHARGE_S3] = { { LED_OFF, LED_INDEFINITE } }, + [STATE_DISCHARGE_S5] = { { LED_OFF, LED_INDEFINITE } }, + [STATE_BATTERY_ERROR] = { { EC_LED_COLOR_RED, 1 * LED_ONE_SEC }, + { LED_OFF, 1 * LED_ONE_SEC } }, + [STATE_FACTORY_TEST] = { { EC_LED_COLOR_RED, 2 * LED_ONE_SEC }, + { EC_LED_COLOR_GREEN, + 2 * LED_ONE_SEC } }, + }; + +__override const struct led_descriptor + led_pwr_state_table[PWR_LED_NUM_STATES][LED_NUM_PHASES] = { + [PWR_LED_STATE_ON] = { { EC_LED_COLOR_WHITE, LED_INDEFINITE } }, + [PWR_LED_STATE_SUSPEND_AC] = { { EC_LED_COLOR_WHITE, + 3 * LED_ONE_SEC }, + { LED_OFF, 0.5 * LED_ONE_SEC } }, + [PWR_LED_STATE_SUSPEND_NO_AC] = { { EC_LED_COLOR_WHITE, + 3 * LED_ONE_SEC }, + { LED_OFF, + 0.5 * LED_ONE_SEC } }, + [PWR_LED_STATE_OFF] = { { LED_OFF, LED_INDEFINITE } }, + }; + +const enum ec_led_id supported_led_ids[] = { + EC_LED_ID_BATTERY_LED, + EC_LED_ID_POWER_LED, +}; + +const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); + +static void board_led_pwm_set_duty(const struct board_led_pwm_dt_channel *ch, + int percent) +{ + uint32_t pulse_ns; + int rv; + + if (!device_is_ready(ch->dev)) { + LOG_ERR("PWM device %s not ready", ch->dev->name); + return; + } + + pulse_ns = DIV_ROUND_NEAREST(BOARD_LED_PWM_PERIOD_NS * percent, 100); + + LOG_DBG("Board LED PWM %s set percent (%d), pulse %d", ch->dev->name, + percent, pulse_ns); + + rv = pwm_set(ch->dev, ch->channel, BOARD_LED_PWM_PERIOD_NS, pulse_ns, + ch->flags); + if (rv) { + LOG_ERR("pwm_set() failed %s (%d)", ch->dev->name, rv); + } +} + +static bool device_is_clamshell(void) +{ + int ret; + uint32_t val; + + ret = cros_cbi_get_fw_config(FORM_FACTOR, &val); + if (ret != 0) { + LOG_ERR("Error retrieving CBI FW_CONFIG field %d", FORM_FACTOR); + return false; + } + + return val == CLAMSHELL; +} + +__override void led_set_color_battery(enum ec_led_colors color) +{ + switch (color) { + case EC_LED_COLOR_RED: + board_led_pwm_set_duty(&board_led_battery_red, 100); + board_led_pwm_set_duty(&board_led_battery_green, 0); + break; + case EC_LED_COLOR_GREEN: + board_led_pwm_set_duty(&board_led_battery_red, 0); + board_led_pwm_set_duty(&board_led_battery_green, 100); + break; + case EC_LED_COLOR_AMBER: + board_led_pwm_set_duty(&board_led_battery_red, 100); + board_led_pwm_set_duty(&board_led_battery_green, 20); + break; + default: /* LED_OFF and other unsupported colors */ + board_led_pwm_set_duty(&board_led_battery_red, 0); + board_led_pwm_set_duty(&board_led_battery_green, 0); + break; + } +} + +__override void led_set_color_power(enum ec_led_colors color) +{ + if (device_is_clamshell()) { + board_led_pwm_set_duty(&board_led_power_white, 0); + } else { + switch (color) { + case EC_LED_COLOR_WHITE: + board_led_pwm_set_duty(&board_led_power_white, 100); + break; + default: + board_led_pwm_set_duty(&board_led_power_white, 0); + break; + } + } +} + +void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) +{ + if (led_id == EC_LED_ID_BATTERY_LED) { + brightness_range[EC_LED_COLOR_RED] = 1; + brightness_range[EC_LED_COLOR_GREEN] = 1; + brightness_range[EC_LED_COLOR_AMBER] = 1; + } else if (led_id == EC_LED_ID_POWER_LED) { + if (device_is_clamshell()) { + brightness_range[EC_LED_COLOR_WHITE] = 0; + } else { + brightness_range[EC_LED_COLOR_WHITE] = 1; + } + } +} + +int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) +{ + if (led_id == EC_LED_ID_BATTERY_LED) { + if (brightness[EC_LED_COLOR_RED] != 0) { + led_set_color_battery(EC_LED_COLOR_RED); + } else if (brightness[EC_LED_COLOR_GREEN] != 0) { + led_set_color_battery(EC_LED_COLOR_GREEN); + } else if (brightness[EC_LED_COLOR_AMBER] != 0) { + led_set_color_battery(EC_LED_COLOR_AMBER); + } else { + led_set_color_battery(LED_OFF); + } + } else if (led_id == EC_LED_ID_POWER_LED) { + if (brightness[EC_LED_COLOR_WHITE] != 0) { + led_set_color_power(EC_LED_COLOR_WHITE); + } else { + led_set_color_power(LED_OFF); + } + } + + return EC_SUCCESS; +} |