diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch b/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch deleted file mode 100644 index 2b1257526f..0000000000 --- a/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch +++ /dev/null @@ -1,235 +0,0 @@ -From 136ae921cea7e7a189ee99d126253631f880ded0 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.com> -Date: Mon, 13 Jul 2020 10:33:19 +0100 -Subject: [PATCH] leds: Add the actpwr trigger - -The actpwr trigger is a meta trigger that cycles between an inverted -mmc0 and default-on. It is written in a way that could fairly easily -be generalised to support alternative sets of source triggers. - -Signed-off-by: Phil Elwell <phil@raspberrypi.com> ---- - drivers/leds/trigger/Kconfig | 11 ++ - drivers/leds/trigger/Makefile | 1 + - drivers/leds/trigger/ledtrig-actpwr.c | 190 ++++++++++++++++++++++++++ - 3 files changed, 202 insertions(+) - create mode 100644 drivers/leds/trigger/ledtrig-actpwr.c - ---- a/drivers/leds/trigger/Kconfig -+++ b/drivers/leds/trigger/Kconfig -@@ -151,4 +151,15 @@ config LEDS_TRIGGER_AUDIO - the audio mute and mic-mute changes. - If unsure, say N - -+config LEDS_TRIGGER_ACTPWR -+ tristate "ACT/PWR Input Trigger" -+ depends on LEDS_TRIGGERS -+ help -+ This trigger is intended for platforms that have one software- -+ controllable LED and no dedicated activity or power LEDs, hence the -+ need to make the one LED perform both functions. It cycles between -+ default-on and an inverted mmc0 every 500ms, guaranteeing that it is -+ on for at least half of the time. -+ If unsure, say N. -+ - endif # LEDS_TRIGGERS ---- a/drivers/leds/trigger/Makefile -+++ b/drivers/leds/trigger/Makefile -@@ -16,3 +16,4 @@ obj-$(CONFIG_LEDS_TRIGGER_PANIC) += ledt - obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o - obj-$(CONFIG_LEDS_TRIGGER_PATTERN) += ledtrig-pattern.o - obj-$(CONFIG_LEDS_TRIGGER_AUDIO) += ledtrig-audio.o -+obj-$(CONFIG_LEDS_TRIGGER_ACTPWR) += ledtrig-actpwr.o ---- /dev/null -+++ b/drivers/leds/trigger/ledtrig-actpwr.c -@@ -0,0 +1,190 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * Activity/power trigger -+ * -+ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd. -+ * -+ * Based on Atsushi Nemoto's ledtrig-heartbeat.c, although there may be -+ * nothing left of the original now. -+ */ -+ -+#include <linux/module.h> -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/timer.h> -+#include <linux/leds.h> -+#include "../leds.h" -+ -+enum { -+ TRIG_ACT, -+ TRIG_PWR, -+ -+ TRIG_COUNT -+}; -+ -+struct actpwr_trig_src { -+ const char *name; -+ int interval; -+ bool invert; -+}; -+ -+struct actpwr_vled { -+ struct led_classdev cdev; -+ struct actpwr_trig_data *parent; -+ enum led_brightness value; -+ unsigned int interval; -+ bool invert; -+}; -+ -+struct actpwr_trig_data { -+ struct led_trigger trig; -+ struct actpwr_vled virt_leds[TRIG_COUNT]; -+ struct actpwr_vled *active; -+ struct timer_list timer; -+ int next_active; -+}; -+ -+static int actpwr_trig_activate(struct led_classdev *led_cdev); -+static void actpwr_trig_deactivate(struct led_classdev *led_cdev); -+ -+static const struct actpwr_trig_src actpwr_trig_sources[TRIG_COUNT] = { -+ [TRIG_ACT] = { "mmc0", 500, true }, -+ [TRIG_PWR] = { "default-on", 500, false }, -+}; -+ -+static struct actpwr_trig_data actpwr_data = { -+ { -+ .name = "actpwr", -+ .activate = actpwr_trig_activate, -+ .deactivate = actpwr_trig_deactivate, -+ } -+}; -+ -+static void actpwr_brightness_set(struct led_classdev *led_cdev, -+ enum led_brightness value) -+{ -+ struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled, -+ cdev); -+ struct actpwr_trig_data *trig = vled->parent; -+ -+ if (vled->invert) -+ value = !value; -+ vled->value = value; -+ -+ if (vled == trig->active) -+ led_trigger_event(&trig->trig, value); -+} -+ -+static int actpwr_brightness_set_blocking(struct led_classdev *led_cdev, -+ enum led_brightness value) -+{ -+ actpwr_brightness_set(led_cdev, value); -+ return 0; -+} -+ -+static enum led_brightness actpwr_brightness_get(struct led_classdev *led_cdev) -+{ -+ struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled, -+ cdev); -+ -+ return vled->value; -+} -+ -+static void actpwr_trig_cycle(struct timer_list *t) -+{ -+ struct actpwr_trig_data *trig = &actpwr_data; -+ struct actpwr_vled *active; -+ -+ active = &trig->virt_leds[trig->next_active]; -+ trig->active = active; -+ trig->next_active = (trig->next_active + 1) % TRIG_COUNT; -+ -+ led_trigger_event(&trig->trig, active->value); -+ -+ mod_timer(&trig->timer, jiffies + msecs_to_jiffies(active->interval)); -+} -+ -+static int actpwr_trig_activate(struct led_classdev *led_cdev) -+{ -+ struct actpwr_trig_data *trig = &actpwr_data; -+ -+ /* Start the timer if this is the first LED */ -+ if (!trig->active) -+ actpwr_trig_cycle(&trig->timer); -+ else -+ led_set_brightness_nosleep(led_cdev, trig->active->value); -+ -+ return 0; -+} -+ -+static void actpwr_trig_deactivate(struct led_classdev *led_cdev) -+{ -+ struct actpwr_trig_data *trig = &actpwr_data; -+ -+ if (list_empty(&trig->trig.led_cdevs)) { -+ del_timer_sync(&trig->timer); -+ trig->active = NULL; -+ } -+} -+ -+static int __init actpwr_trig_init(void) -+{ -+ struct actpwr_trig_data *trig = &actpwr_data; -+ int ret = 0; -+ int i; -+ -+ timer_setup(&trig->timer, actpwr_trig_cycle, 0); -+ -+ /* Register one "LED" for each source trigger */ -+ for (i = 0; i < TRIG_COUNT; i++) -+ { -+ struct actpwr_vled *vled = &trig->virt_leds[i]; -+ struct led_classdev *cdev = &vled->cdev; -+ const struct actpwr_trig_src *src = &actpwr_trig_sources[i]; -+ -+ vled->parent = trig; -+ vled->interval = src->interval; -+ vled->invert = src->invert; -+ cdev->name = src->name; -+ cdev->brightness_set = actpwr_brightness_set; -+ cdev->brightness_set_blocking = actpwr_brightness_set_blocking; -+ cdev->brightness_get = actpwr_brightness_get; -+ cdev->default_trigger = src->name; -+ ret = led_classdev_register(NULL, cdev); -+ if (ret) -+ goto error_classdev; -+ } -+ -+ ret = led_trigger_register(&trig->trig); -+ if (ret) -+ goto error_classdev; -+ -+ return 0; -+ -+error_classdev: -+ while (i > 0) -+ { -+ i--; -+ led_classdev_unregister(&trig->virt_leds[i].cdev); -+ } -+ -+ return ret; -+} -+ -+static void __exit actpwr_trig_exit(void) -+{ -+ int i; -+ -+ led_trigger_unregister(&actpwr_data.trig); -+ for (i = 0; i < TRIG_COUNT; i++) -+ { -+ led_classdev_unregister(&actpwr_data.virt_leds[i].cdev); -+ } -+} -+ -+module_init(actpwr_trig_init); -+module_exit(actpwr_trig_exit); -+ -+MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>"); -+MODULE_DESCRIPTION("ACT/PWR LED trigger"); -+MODULE_LICENSE("GPL v2"); |