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authorPeter Marheine <pmarheine@chromium.org>2023-02-16 00:14:21 +0000
committerPeter Marheine <pmarheine@chromium.org>2023-02-16 00:14:21 +0000
commitf43d6df6f2860dbe8ec15aebdc28890771ad7897 (patch)
tree6877eff7016f9979e46017ea5221a16d36344304 /board/constitution/led.c
parentdce247e97903a2464ff8884106bffa43587c1dcb (diff)
parent0849542c72359150a357945c010dca6b5a213633 (diff)
downloadchrome-ec-firmware-nissa-15217.126.B-main.tar.gz
Merge remote-tracking branch cros/main into firmware-nissa-15217.B-mainfirmware-nissa-15217.126.B-main
Generated by: ./util/update_release_branch.py --zephyr --board nissa firmware- nissa-15217.B-main Relevant changes: git log --oneline dce247e979..0849542c72 -- zephyr/program/nissa util/getversion.sh 0849542c72 zephyr: add sleep property for keyboard factory test 5825d894b9 nissa: disable PLATFORM_EC_TCPC_INTERRUPT 25a400690f yavikso: Update fan table version 3 9263f14536 zephyr: remove shi node and add references to shi0 b40c6970d3 Craask: Charger limit for 65w adapter 6fd2d3ea6c zephyr: add comments for tcpc driver 00986ffb1c zephyr: move usbc interrupt handler to shim 2508094b14 yaviks: reduce RW image size (64KB) 55b6aaf52f yaviks: enable keyboard factory test 4786d1eac6 nissa: Add ocpc init function to Nissa boards 2ae1083638 zephyr: cros_kb: set KSI/KSO kbs mode by pinctrl driver d415f4665a yaviks: Fix OCPC Vsys overshooting 93f9d42a7c zephyr: config: drop few more redundant options BRANCH=None BUG=b:254148652 b:260762509 b:265220075 b:268273712 b:265763662 BUG=b:253557900 b:254148652 b:269212593 b:267404783 b:262352202 TEST=`make -j buildall` Force-Relevant-Builds: all Change-Id: I195dd82af114180b611f9afd1465a69f7f43d417 Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Diffstat (limited to 'board/constitution/led.c')
-rw-r--r--board/constitution/led.c260
1 files changed, 260 insertions, 0 deletions
diff --git a/board/constitution/led.c b/board/constitution/led.c
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--- /dev/null
+++ b/board/constitution/led.c
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+/* Copyright 2023 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Power LED control for Brask.
+ * Solid green - active power
+ * Green flashing - suspended
+ * Red flashing - alert
+ * Solid red - critical
+ */
+
+#include "chipset.h"
+#include "console.h"
+#include "ec_commands.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "led_common.h"
+#include "pwm.h"
+#include "timer.h"
+#include "util.h"
+
+#define CPRINTS(format, args...) cprints(CC_GPIO, format, ##args)
+
+/*
+ * Due to the CSME-Lite processing, upon startup the CPU transitions through
+ * S0->S3->S5->S3->S0, causing the LED to turn on/off/on, so
+ * delay turning off the LED during suspend/shutdown.
+ */
+#define LED_CPU_DELAY_MS (2000 * MSEC)
+
+const enum ec_led_id supported_led_ids[] = { EC_LED_ID_POWER_LED };
+const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
+
+enum led_color {
+ LED_OFF = 0,
+ LED_RED,
+ LED_GREEN,
+
+ /* Number of colors, not a color itself */
+ LED_COLOR_COUNT
+};
+
+static int set_color_power(enum led_color color, int duty)
+{
+ int green = 0;
+ int red = 0;
+
+ if (duty < 0 || 100 < duty)
+ return EC_ERROR_UNKNOWN;
+
+ switch (color) {
+ case LED_OFF:
+ break;
+ case LED_GREEN:
+ green = 1;
+ break;
+ case LED_RED:
+ red = 1;
+ break;
+ default:
+ return EC_ERROR_UNKNOWN;
+ }
+
+ if (red)
+ pwm_set_duty(PWM_CH_LED_RED, duty);
+ else
+ pwm_set_duty(PWM_CH_LED_RED, 0);
+
+ if (green)
+ pwm_set_duty(PWM_CH_LED_GREEN, duty);
+ else
+ pwm_set_duty(PWM_CH_LED_GREEN, 0);
+
+ return EC_SUCCESS;
+}
+
+static int set_color(enum ec_led_id id, enum led_color color, int duty)
+{
+ switch (id) {
+ case EC_LED_ID_POWER_LED:
+ return set_color_power(color, duty);
+ default:
+ return EC_ERROR_UNKNOWN;
+ }
+}
+
+#define LED_PULSE_US (2 * SECOND)
+/* 40 msec for nice and smooth transition. */
+#define LED_PULSE_TICK_US (40 * MSEC)
+
+/*
+ * When pulsing is enabled, brightness is incremented by <duty_inc> every
+ * <interval> usec from 0 to 100% in LED_PULSE_US usec. Then it's decremented
+ * likewise in LED_PULSE_US usec.
+ */
+static struct {
+ uint32_t interval;
+ int duty_inc;
+ enum led_color color;
+ int duty;
+} led_pulse;
+
+#define CONFIG_TICK(interval, color) \
+ config_tick((interval), 100 / (LED_PULSE_US / (interval)), (color))
+
+static void config_tick(uint32_t interval, int duty_inc, enum led_color color)
+{
+ led_pulse.interval = interval;
+ led_pulse.duty_inc = duty_inc;
+ led_pulse.color = color;
+ led_pulse.duty = 0;
+}
+
+static void pulse_power_led(enum led_color color)
+{
+ set_color(EC_LED_ID_POWER_LED, color, led_pulse.duty);
+ if (led_pulse.duty + led_pulse.duty_inc > 100)
+ led_pulse.duty_inc = led_pulse.duty_inc * -1;
+ else if (led_pulse.duty + led_pulse.duty_inc < 0)
+ led_pulse.duty_inc = led_pulse.duty_inc * -1;
+ led_pulse.duty += led_pulse.duty_inc;
+}
+
+static void led_tick(void);
+DECLARE_DEFERRED(led_tick);
+static void led_tick(void)
+{
+ uint32_t elapsed;
+ uint32_t next = 0;
+ uint32_t start = get_time().le.lo;
+
+ if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
+ pulse_power_led(led_pulse.color);
+ elapsed = get_time().le.lo - start;
+ next = led_pulse.interval > elapsed ? led_pulse.interval - elapsed : 0;
+ hook_call_deferred(&led_tick_data, next);
+}
+
+static void led_suspend(void)
+{
+ CONFIG_TICK(LED_PULSE_TICK_US, LED_GREEN);
+ led_tick();
+}
+DECLARE_DEFERRED(led_suspend);
+
+static void led_shutdown(void)
+{
+ if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
+ set_color(EC_LED_ID_POWER_LED, LED_OFF, 0);
+}
+DECLARE_DEFERRED(led_shutdown);
+
+static void led_shutdown_hook(void)
+{
+ hook_call_deferred(&led_tick_data, -1);
+ hook_call_deferred(&led_suspend_data, -1);
+ hook_call_deferred(&led_shutdown_data, LED_CPU_DELAY_MS);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, led_shutdown_hook, HOOK_PRIO_DEFAULT);
+
+static void led_suspend_hook(void)
+{
+ hook_call_deferred(&led_shutdown_data, -1);
+ hook_call_deferred(&led_suspend_data, LED_CPU_DELAY_MS);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, led_suspend_hook, HOOK_PRIO_DEFAULT);
+
+static void led_resume(void)
+{
+ /*
+ * Assume there is no race condition with led_tick, which also
+ * runs in hook_task.
+ */
+ hook_call_deferred(&led_tick_data, -1);
+ /*
+ * Avoid invoking the suspend/shutdown delayed hooks.
+ */
+ hook_call_deferred(&led_suspend_data, -1);
+ hook_call_deferred(&led_shutdown_data, -1);
+ if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
+ set_color(EC_LED_ID_POWER_LED, LED_GREEN, 100);
+}
+DECLARE_HOOK(HOOK_CHIPSET_RESUME, led_resume, HOOK_PRIO_DEFAULT);
+
+void led_alert(int enable)
+{
+ if (enable) {
+ /* Overwrite the current signal */
+ config_tick(1 * SECOND, 100, LED_RED);
+ led_tick();
+ } else {
+ /* Restore the previous signal */
+ if (chipset_in_state(CHIPSET_STATE_ON))
+ led_resume();
+ else if (chipset_in_state(CHIPSET_STATE_SUSPEND))
+ led_suspend_hook();
+ else if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
+ led_shutdown_hook();
+ }
+}
+
+void show_critical_error(void)
+{
+ hook_call_deferred(&led_tick_data, -1);
+ if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
+ set_color(EC_LED_ID_POWER_LED, LED_RED, 100);
+}
+
+static int command_led(int argc, const char **argv)
+{
+ enum ec_led_id id = EC_LED_ID_POWER_LED;
+
+ if (argc < 2)
+ return EC_ERROR_PARAM_COUNT;
+
+ if (!strcasecmp(argv[1], "debug")) {
+ led_auto_control(id, !led_auto_control_is_enabled(id));
+ ccprintf("o%s\n", led_auto_control_is_enabled(id) ? "ff" : "n");
+ } else if (!strcasecmp(argv[1], "off")) {
+ set_color(id, LED_OFF, 0);
+ } else if (!strcasecmp(argv[1], "red")) {
+ set_color(id, LED_RED, 100);
+ } else if (!strcasecmp(argv[1], "green")) {
+ set_color(id, LED_GREEN, 100);
+ } else if (!strcasecmp(argv[1], "alert")) {
+ led_alert(1);
+ } else if (!strcasecmp(argv[1], "crit")) {
+ show_critical_error();
+ } else {
+ return EC_ERROR_PARAM1;
+ }
+ return EC_SUCCESS;
+}
+DECLARE_CONSOLE_COMMAND(led, command_led, "[debug|red|green|off|alert|crit]",
+ "Turn on/off LED.");
+
+void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
+{
+ brightness_range[EC_LED_COLOR_RED] = 100;
+ brightness_range[EC_LED_COLOR_GREEN] = 100;
+}
+
+int led_set_brightness(enum ec_led_id id, const uint8_t *brightness)
+{
+ if (brightness[EC_LED_COLOR_RED])
+ return set_color(id, LED_RED, brightness[EC_LED_COLOR_RED]);
+ else if (brightness[EC_LED_COLOR_GREEN])
+ return set_color(id, LED_GREEN, brightness[EC_LED_COLOR_GREEN]);
+ else
+ return set_color(id, LED_OFF, 0);
+}
+__override void board_set_charge_limit(int port, int supplier, int charge_ma,
+ int max_ma, int charge_mv)
+{
+ /* Blink alert if insufficient power per system_can_boot_ap(). */
+ int insufficient_power =
+ (charge_ma * charge_mv) <
+ (CONFIG_CHARGER_MIN_POWER_MW_FOR_POWER_ON * 1000);
+ led_alert(insufficient_power);
+}