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feat: LED indicators displaying

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Alessandro Bortolin 2022-09-06 12:29:07 +00:00
parent 3635a4c601
commit 3032e05488
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GPG key ID: 062FD366CB5E8CFE
4 changed files with 100 additions and 0 deletions
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1
app/CMakeLists.txt
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@ -82,6 +82,7 @@ target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/events/battery_state_changed
target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/battery.c)
target_sources(app PRIVATE src/events/led_indicator_changed.c)
target_sources_ifdef(CONFIG_ZMK_LED_INDICATORS app PRIVATE src/led_indicators.c)
target_sources_ifdef(CONFIG_ZMK_SPLIT app PRIVATE src/events/split_peripheral_status_changed.c)
add_subdirectory(src/split)

14
app/Kconfig
View file

@ -294,6 +294,20 @@ config ZMK_BACKLIGHT_AUTO_OFF_USB
#ZMK_BACKLIGHT
endif
menuconfig ZMK_LED_INDICATORS
bool "LED indicators"
select LED
if ZMK_LED_INDICATORS
config ZMK_LED_INDICATORS_BRT
int "Brightness in percent"
range 1 100
default 80
#ZMK_LED_INDICATORS
endif
#Display/LED Options
endmenu

6
app/include/zmk/led_indicators.h
View file

@ -10,6 +10,12 @@
#include <zmk/hid.h>
#include <zmk/led_indicators_types.h>
#define ZMK_LED_NUMLOCK_BIT BIT(0)
#define ZMK_LED_CAPSLOCK_BIT BIT(1)
#define ZMK_LED_SCROLLLOCK_BIT BIT(2)
#define ZMK_LED_COMPOSE_BIT BIT(3)
#define ZMK_LED_KANA_BIT BIT(4)
zmk_leds_flags_t zmk_leds_get_current_flags();
zmk_leds_flags_t zmk_leds_get_flags(enum zmk_endpoint endpoint, uint8_t profile);
void zmk_leds_update_flags(zmk_leds_flags_t leds, enum zmk_endpoint endpoint, uint8_t profile);

79
app/src/led_indicators.c Normal file
View file

@ -0,0 +1,79 @@
/*
* Copyright (c) 2022 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <kernel.h>
#include <device.h>
#include <init.h>
#include <logging/log.h>
#include <drivers/led.h>
#include <zmk/event_manager.h>
#include <zmk/led_indicators.h>
#include <zmk/events/led_indicator_changed.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#ifndef DT_NODE_CHILD_IDX
#define CHILD_IDX(idx, child_id, node_id) (DT_SAME_NODE(child_id, node_id) ? idx : 0)
#define ADD_COMMA(node_id) node_id,
#define DT_NODE_CHILD_IDX(node_id) \
(FOR_EACH_IDX_FIXED_ARG(CHILD_IDX, (+), node_id, \
DT_FOREACH_CHILD(DT_PARENT(node_id), ADD_COMMA) DT_ROOT))
#endif
struct zmk_led_cfg {
const struct device *dev;
int index;
int indicator;
};
#define LED_CFG_IMPL(node_id, indicator_bit) \
(struct zmk_led_cfg) { \
.dev = DEVICE_DT_GET(DT_PARENT(node_id)), .index = DT_NODE_CHILD_IDX(node_id), \
.indicator = indicator_bit, \
}
#define LED_CFG(chosen, indicator_bit) \
IF_ENABLED(DT_HAS_CHOSEN(chosen), (LED_CFG_IMPL(DT_CHOSEN(chosen), indicator_bit)))
static const struct zmk_led_cfg led_indicators[] = {LIST_DROP_EMPTY(
LED_CFG(zmk_led_numlock, ZMK_LED_NUMLOCK_BIT), LED_CFG(zmk_led_capslock, ZMK_LED_CAPSLOCK_BIT),
LED_CFG(zmk_led_scrolllock, ZMK_LED_SCROLLLOCK_BIT),
LED_CFG(zmk_led_compose, ZMK_LED_COMPOSE_BIT), LED_CFG(zmk_led_kana, ZMK_LED_KANA_BIT))};
static int leds_init(const struct device *_arg) {
for (int i = 0; i < ARRAY_SIZE(led_indicators); i++) {
if (!device_is_ready(led_indicators[i].dev)) {
LOG_ERR("LED device \"%s\" is not ready", led_indicators[i].dev->name);
return -ENODEV;
}
}
return 0;
}
static int leds_listener(const zmk_event_t *eh) {
const struct zmk_led_changed *ev = as_zmk_led_changed(eh);
zmk_leds_flags_t leds = ev->leds;
for (int i = 0; i < ARRAY_SIZE(led_indicators); i++) {
uint8_t value = (leds & led_indicators[i].indicator) ? CONFIG_ZMK_LED_INDICATORS_BRT : 0;
int rc = led_set_brightness(led_indicators[i].dev, led_indicators[i].index, value);
if (rc != 0) {
LOG_ERR("Failed to set LED indicator %d: %d", i, rc);
}
}
return ZMK_EV_EVENT_BUBBLE;
}
ZMK_LISTENER(leds_listener, leds_listener);
ZMK_SUBSCRIPTION(leds_listener, zmk_led_changed);
SYS_INIT(leds_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);