Improve formatting, remove unused code

src/main.c

 #include "ch.h"
 #include "hal.h"
 
-static event_listener_t el;
-static event_source_t IR_receiver;
-/*===========================================================================*/
-/* IR remote related code.                                                   */
-/*===========================================================================*/
 
+/*
+ * NEC timing macros
+ */
 #define DELTA          5
 #define START_PULSE    45
 #define END_PULSE      405
 #define ONE_PULSE      17
 #define COMMA_PULSE    23
 
+
+static event_listener_t el;
+static event_source_t IR_receiver;
+
 /* PWM configuration for IR output */
 static PWMConfig pwmcfg = {
-    380000, /* 380 kHz PWM clock frequency. */
-    10, /* PWM period 10 clock cycles.   */
+    380000, /* 380 kHz PWM clock frequency */
+    10, /* PWM period 10 clock cycles */
     NULL,
     {
         {PWM_OUTPUT_ACTIVE_HIGH, NULL},
 
 /* Timer configuration for IR output */
 static const GPTConfig gpt4cfg = {
-  1000000, // 1 MHz timer clock.
-  NULL, // No callback
-  0, 0
+    1000000, /* 1 MHz timer clock */
+    NULL, /* No callback */
+    0, 0
 };
 
 /*===========================================================================*/
 static int32_t index = -1;
 static bool START_OCCURED = FALSE, REPEAT_FLAG = FALSE;
 static uint32_t tmp, command;
-static void icuwidthcb(ICUDriver *icup) {
 
-  icucnt_t cnt = icuGetWidthX(icup);
-  if((cnt > (START_PULSE - DELTA)) && (cnt < (START_PULSE + DELTA))){
-    index = 0;
-    START_OCCURED = TRUE;
-  }
-  else if((cnt > (ONE_PULSE - DELTA)) && (cnt < (ONE_PULSE + DELTA))){
-    tmp |= 1 << (31 - index);
-    index++;
-  }
-  else if((cnt > (ZERO_PULSE - DELTA)) && (cnt < (ZERO_PULSE + DELTA))){
-    tmp &= ~(1 << (31 - index));
-    index++;
-  }
-  else if((cnt > (END_PULSE - 4*DELTA)) && (cnt < (END_PULSE + 4*DELTA))){
-    if((START_OCCURED) && (index == 32)) {
-      command = tmp;
+static void icuwidthcb(ICUDriver *icup) {
+    icucnt_t cnt = icuGetWidthX(icup);
+    if ((cnt > (START_PULSE - DELTA)) && (cnt < (START_PULSE + DELTA))) {
+        index = 0;
+        START_OCCURED = TRUE;
+    } else if ((cnt > (ONE_PULSE - DELTA)) && (cnt < (ONE_PULSE + DELTA))) {
+        tmp |= 1 << (31 - index);
+        index++;
+    } else if ((cnt > (ZERO_PULSE - DELTA)) && (cnt < (ZERO_PULSE + DELTA))) {
+        tmp &= ~(1 << (31 - index));
+        index++;
+    } else if ((cnt > (END_PULSE - 4*DELTA)) && (cnt < (END_PULSE + 4*DELTA))) {
+        if ((START_OCCURED) && (index == 32)) {
+            command = tmp;
+        } else {
+            command = 0;
+        }
+        REPEAT_FLAG = FALSE;
+        START_OCCURED = FALSE;
+        index = -1;
+    } else if ((cnt > (RPT_CMD_PULSE - DELTA)) && (cnt < (RPT_CMD_PULSE + DELTA))) {
+        REPEAT_FLAG = TRUE;
+    } else if ((cnt > (COMMA_PULSE - DELTA)) && (cnt < (COMMA_PULSE + DELTA))) {
+        chEvtBroadcastFlags(&IR_receiver, 0);
     } else {
-      command = 0;
+        /* Long dead pulse nothing to do */
     }
-    REPEAT_FLAG = FALSE;
-    START_OCCURED = FALSE;
-    index = -1;
-  }
-  else if((cnt > (RPT_CMD_PULSE - DELTA)) && (cnt < (RPT_CMD_PULSE + DELTA))){
-    REPEAT_FLAG = TRUE;
-  }
-  else if((cnt > (COMMA_PULSE - DELTA)) && (cnt < (COMMA_PULSE + DELTA))){
-    chEvtBroadcastFlags(&IR_receiver, 0);
-  }
-  else{
-    /* Long dead pulse nothing to do */
-  }
 }
 
 static ICUConfig icucfg = {
-  ICU_INPUT_ACTIVE_HIGH,
-  10000,            /* 10kHz ICU clock frequency. */
-  icuwidthcb,
-  NULL,
-  NULL,
-  ICU_CHANNEL_1,
-  0
+    ICU_INPUT_ACTIVE_HIGH,
+    10000,            /* 10kHz ICU clock frequency. */
+    icuwidthcb,
+    NULL,
+    NULL,
+    ICU_CHANNEL_1,
+    0
 };
 
-/*
- * Green LED blinker thread, times are in milliseconds.
- */
-static THD_WORKING_AREA(waThread1, 128);
-static THD_FUNCTION(Thread1, arg) {
-
-    (void)arg;
-    while (true) {
-        palClearPad(GPIOC, GPIOC_LED);
-        chThdSleepMilliseconds(500);
-        palSetPad(GPIOC, GPIOC_LED);
-        chThdSleepMilliseconds(500);
-    }
-}
-
 /*
  * Synchronously send one bit for RC5
  */
     halInit();
     chSysInit();
 
-      chEvtObjectInit(&IR_receiver);
-  chEvtRegister(&IR_receiver, &el, 0);
-/*
- * Initializes the ICU driver 3.
- * GPIOC6 is the ICU input.
- * The two pins have to be externally connected together.
- */
-  sdStart(&SD2, NULL);
-  icuStart(&ICUD3, &icucfg);
-  palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLDOWN);
-  icuStartCapture(&ICUD3);
-  icuEnableNotifications(&ICUD3);
-
+    chEvtObjectInit(&IR_receiver);
+    chEvtRegister(&IR_receiver, &el, 0);
     /*
-     * Creates the blinker thread.
+     * Initializes the ICU driver 3.
+     * GPIOC6 is the ICU input.
+     * The two pins have to be externally connected together.
      */
-    //chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+    sdStart(&SD2, NULL);
+    icuStart(&ICUD3, &icucfg);
+    palSetPadMode(GPIOA, 6, PAL_MODE_INPUT_PULLDOWN);
+    icuStartCapture(&ICUD3);
+    icuEnableNotifications(&ICUD3);
 
     /* Configure PWM */
     pwmStart(&PWMD1, &pwmcfg);