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Expose the time of the last change to the LED state #17222

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merged 1 commit into from
Jul 2, 2022
Merged

Expose the time of the last change to the LED state #17222

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12 changes: 11 additions & 1 deletion quantum/led.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
*/
#include "led.h"
#include "host.h"
#include "timer.h"
#include "debug.h"
#include "gpio.h"

Expand Down Expand Up @@ -54,6 +55,14 @@ static void handle_backlight_caps_lock(led_t led_state) {
}
#endif

static uint32_t last_led_modification_time = 0;
uint32_t last_led_activity_time(void) {
return last_led_modification_time;
}
uint32_t last_led_activity_elapsed(void) {
return timer_elapsed32(last_led_modification_time);
}

/** \brief Lock LED set callback - keymap/user level
*
* \deprecated Use led_update_user() instead.
Expand Down Expand Up @@ -174,7 +183,8 @@ void led_task(void) {
// update LED
uint8_t led_status = host_keyboard_leds();
if (last_led_status != led_status) {
last_led_status = led_status;
last_led_status = led_status;
last_led_modification_time = timer_read32();

if (debug_keyboard) {
debug("led_task: ");
Expand Down
3 changes: 3 additions & 0 deletions quantum/led.h
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,9 @@ void led_set_kb(uint8_t usb_led);
bool led_update_user(led_t led_state);
bool led_update_kb(led_t led_state);

uint32_t last_led_activity_time(void); // Timestamp of the LED activity
uint32_t last_led_activity_elapsed(void); // Number of milliseconds since the last LED activity

#ifdef __cplusplus
}
#endif