Moving IRAM callback in cpp code

Ref: junkfix/esp32-ds18b20#26

Author: mathieucarbou

src/esp32-ds18b20/OneWireESP32.cpp

@@ -50,6 +50,12 @@ const rmt_receive_config_t owrxconf = {
 #endif
 };
 
+IRAM_ATTR static bool owrxdone(rmt_channel_handle_t ch, const rmt_rx_done_event_data_t* edata, void* udata) {
+  BaseType_t h = pdFALSE;
+  xQueueSendFromISR((QueueHandle_t)udata, edata, &h);
+  return (h == pdTRUE);
+}
+
 OneWire32::OneWire32(uint8_t pin) {
   owbuf = new rmt_symbol_word_t[DS18_MAX_BLOCKS];
 
@@ -159,12 +165,6 @@ OneWire32::~OneWire32() {
   delete[] owbuf;
 }
 
-bool owrxdone(rmt_channel_handle_t ch, const rmt_rx_done_event_data_t* edata, void* udata) {
-  BaseType_t h = pdFALSE;
-  xQueueSendFromISR((QueueHandle_t)udata, edata, &h);
-  return (h == pdTRUE);
-}
-
 bool OneWire32::reset() {
 
   rmt_symbol_word_t symbol_reset;

src/esp32-ds18b20/OneWireESP32.h

@@ -11,8 +11,6 @@
 #include "freertos/task.h"
 #include "sdkconfig.h"
 
-IRAM_ATTR bool owrxdone(rmt_channel_handle_t ch, const rmt_rx_done_event_data_t* edata, void* udata);
-
 class OneWire32 {
   private:
     gpio_num_t owpin;