diff options
author | Peter Marheine <pmarheine@chromium.org> | 2023-02-16 00:14:21 +0000 |
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committer | Peter Marheine <pmarheine@chromium.org> | 2023-02-16 00:14:21 +0000 |
commit | f43d6df6f2860dbe8ec15aebdc28890771ad7897 (patch) | |
tree | 6877eff7016f9979e46017ea5221a16d36344304 /board/constitution/led.c | |
parent | dce247e97903a2464ff8884106bffa43587c1dcb (diff) | |
parent | 0849542c72359150a357945c010dca6b5a213633 (diff) | |
download | chrome-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.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/board/constitution/led.c b/board/constitution/led.c new file mode 100644 index 0000000000..a8c725258b --- /dev/null +++ b/board/constitution/led.c @@ -0,0 +1,260 @@ +/* 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); +} |