Hardware LED blinking (#1303)

* Hardware LED blinking notification messages
* Blink: fix crash on exit, reset blinking on exit
* Lib: remove unused UNUSED

Co-authored-by: あく <alleteam@gmail.com>

firmware/targets/f7/furi_hal/furi_hal_light.c

@@ -1,6 +1,9 @@
+#include "furi/common_defines.h"
+#include "furi_hal_resources.h"
 #include <furi_hal_light.h>
 #include <furi_hal_delay.h>
 #include <lp5562.h>
+#include <stdint.h>
 
 #define LED_CURRENT_RED 50
 #define LED_CURRENT_GREEN 50
@@ -29,29 +32,63 @@ void furi_hal_light_init() {
 }
 
 void furi_hal_light_set(Light light, uint8_t value) {
-    uint8_t prev = 0;
     furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
-    switch(light) {
-    case LightRed:
+    if(light & LightRed) {
         lp5562_set_channel_value(&furi_hal_i2c_handle_power, LP5562ChannelRed, value);
-        break;
-    case LightGreen:
+    }
+    if(light & LightGreen) {
         lp5562_set_channel_value(&furi_hal_i2c_handle_power, LP5562ChannelGreen, value);
-        break;
-    case LightBlue:
+    }
+    if(light & LightBlue) {
         lp5562_set_channel_value(&furi_hal_i2c_handle_power, LP5562ChannelBlue, value);
-        break;
-    case LightBacklight:
-        prev = lp5562_get_channel_value(&furi_hal_i2c_handle_power, LP5562ChannelWhite);
+    }
+    if(light & LightBacklight) {
+        uint8_t prev = lp5562_get_channel_value(&furi_hal_i2c_handle_power, LP5562ChannelWhite);
         lp5562_execute_ramp(
             &furi_hal_i2c_handle_power, LP5562Engine1, LP5562ChannelWhite, prev, value, 100);
-        break;
-    default:
-        break;
     }
     furi_hal_i2c_release(&furi_hal_i2c_handle_power);
 }
 
+void furi_hal_light_blink_start(Light light, uint8_t brightness, uint16_t on_time, uint16_t period) {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+    lp5562_set_channel_src(
+        &furi_hal_i2c_handle_power,
+        LP5562ChannelRed | LP5562ChannelGreen | LP5562ChannelBlue,
+        LP5562Direct);
+    LP5562Channel led_ch = 0;
+    if(light & LightRed) led_ch |= LP5562ChannelRed;
+    if(light & LightGreen) led_ch |= LP5562ChannelGreen;
+    if(light & LightBlue) led_ch |= LP5562ChannelBlue;
+    lp5562_execute_blink(
+        &furi_hal_i2c_handle_power, LP5562Engine2, led_ch, on_time, period, brightness);
+    furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+}
+
+void furi_hal_light_blink_stop() {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+    lp5562_set_channel_src(
+        &furi_hal_i2c_handle_power,
+        LP5562ChannelRed | LP5562ChannelGreen | LP5562ChannelBlue,
+        LP5562Direct);
+    lp5562_stop_program(&furi_hal_i2c_handle_power, LP5562Engine2);
+    furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+}
+
+void furi_hal_light_blink_set_color(Light light) {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+    LP5562Channel led_ch = 0;
+    lp5562_set_channel_src(
+        &furi_hal_i2c_handle_power,
+        LP5562ChannelRed | LP5562ChannelGreen | LP5562ChannelBlue,
+        LP5562Direct);
+    if(light & LightRed) led_ch |= LP5562ChannelRed;
+    if(light & LightGreen) led_ch |= LP5562ChannelGreen;
+    if(light & LightBlue) led_ch |= LP5562ChannelBlue;
+    lp5562_set_channel_src(&furi_hal_i2c_handle_power, led_ch, LP5562Engine2);
+    furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+}
+
 void furi_hal_light_sequence(const char* sequence) {
     do {
         if(*sequence == 'R') {

firmware/targets/f7/furi_hal/furi_hal_resources.h

@@ -24,10 +24,10 @@ typedef enum {
 
 /* Light */
 typedef enum {
-    LightRed,
-    LightGreen,
-    LightBlue,
-    LightBacklight,
+    LightRed = (1 << 0),
+    LightGreen = (1 << 1),
+    LightBlue = (1 << 2),
+    LightBacklight = (1 << 3),
 } Light;
 
 typedef struct {

firmware/targets/furi_hal_include/furi_hal_light.h

@@ -24,6 +24,25 @@ void furi_hal_light_init();
  */
 void furi_hal_light_set(Light light, uint8_t value);
 
+/** Start hardware LED blinking mode
+ *
+ * @param      light  Light
+ * @param      brightness  light brightness [0-255]
+ * @param      on_time  LED on time in ms
+ * @param      period  LED blink period in ms
+ */
+void furi_hal_light_blink_start(Light light, uint8_t brightness, uint16_t on_time, uint16_t period);
+
+/** Stop hardware LED blinking mode
+ */
+void furi_hal_light_blink_stop();
+
+/** Set color in hardware LED blinking mode
+ *
+ * @param      light  Light
+ */
+void furi_hal_light_blink_set_color(Light light);
+
 /** Execute sequence
  *
  * @param      sequence  Sequence to execute