Reorganize directories

src/hal/hal_esp32.h

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+/*******************************************************************************
+ * 
+ * ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
+ * 
+ * Copyright (c) 2018 Manuel Bleichenbacher
+ * 
+ * Licensed under MIT License
+ * https://opensource.org/licenses/MIT
+ *
+ * Hardware abstraction layer to run LMIC on a ESP32 using ESP-iDF.
+ *******************************************************************************/
+
+#ifndef _hal_esp32_h_
+#define _hal_esp32_h_
+
+#include <stdint.h>
+#include "driver/spi_master.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct lmic_pinmap {
+    spi_host_device_t spi_host;
+    uint8_t nss;
+    uint8_t rxtx;
+    uint8_t rst;
+    uint8_t dio0;
+    uint8_t dio1;
+} lmic_pinmap;
+
+extern lmic_pinmap lmic_pins;
+
+void hal_startBgTask();
+void hal_wakeUp();
+void hal_initCriticalSection();
+void hal_enterCriticalSection();
+void hal_leaveCriticalSection();
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _hal_esp32_h_