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libraries/Adafruit_IO_Arduino/src/util/AdafruitIO_Board.cpp

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+/*!
+ * @file AdafruitIO_Board.cpp
+ *
+ * This is part of the Adafruit IO library for the Arduino platform.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Written by Tony DiCola, Todd Treece for Adafruit Industries
+ *
+ * MIT license, all text here must be included in any redistribution.
+ *
+ */
+#include "AdafruitIO_Board.h"
+
+char AdafruitIO_Board::_id[64] = "";
+
+#if defined(ARDUINO_SAMD_MKR1000)
+const char AdafruitIO_Board::_type[] = "mkr1000";
+#elif defined(ARDUINO_SAMD_FEATHER_M0)
+const char AdafruitIO_Board::_type[] = "feather_m0";
+#elif defined(ARDUINO_AVR_FEATHER32U4)
+const char AdafruitIO_Board::_type[] = "feather_32u4";
+#elif defined(ARDUINO_STM32_FEATHER)
+const char AdafruitIO_Board::_type[] = "feather_wiced";
+#elif defined(ARDUINO_ARCH_ESP32)
+#include <WiFi.h>
+const char AdafruitIO_Board::_type[] = "esp32";
+#elif defined(ESP8266)
+const char AdafruitIO_Board::_type[] = "esp8266";
+#else
+const char AdafruitIO_Board::_type[] = "unknown";
+#endif
+
+/**************************************************************************/
+/*!
+    @brief  Returns a unique board identifier based on the
+            CPU characteristics.
+    @return Unique board identifier.
+*/
+/**************************************************************************/
+const char *AdafruitIO_Board::type() { return AdafruitIO_Board::_type; }
+
+#if defined(ARDUINO_ARCH_SAMD)
+
+/*******************************************************/
+/*!
+    @brief   Assigns an identifier to a SAMD-based board.
+    @return  board identifier, id.
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  volatile uint32_t val1, val2, val3, val4;
+  volatile uint32_t *ptr1 = (volatile uint32_t *)0x0080A00C;
+  val1 = *ptr1;
+  volatile uint32_t *ptr = (volatile uint32_t *)0x0080A040;
+  val2 = *ptr;
+  ptr++;
+  val3 = *ptr;
+  ptr++;
+  val4 = *ptr;
+
+  sprintf(AdafruitIO_Board::_id, "%8x%8x%8x%8x", val1, val2, val3, val4);
+
+  return AdafruitIO_Board::_id;
+}
+
+#elif defined(ARDUINO_ARCH_AVR)
+/*******************************************************/
+/*!
+    @brief  Assigns an identifier to an AVR-based board
+            from boot_signature.
+    @return board identifier, id.
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  for (int i = 0; i < 32; i++) {
+    sprintf(&AdafruitIO_Board::_id[i * 2], "%02x", boot_signature_byte_get(i));
+  }
+  return AdafruitIO_Board::_id;
+}
+
+#elif defined(ARDUINO_ARCH_ESP32)
+
+/*******************************************************/
+/*!
+    @brief  Assigns an identifier to an ESP32-based
+            board from the MAC address.
+    @return board identifier, id.
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  byte mac[6];
+  WiFi.macAddress(mac);
+  for (int i = 0; i < 6; i++) {
+    sprintf(&AdafruitIO_Board::_id[i * 2], "%02x", mac[i]);
+  }
+  return AdafruitIO_Board::_id;
+}
+
+#elif defined(ESP8266)
+
+/*******************************************************/
+/*!
+    @brief  Assigns an identifier to an ESP8266 from
+            the chip identifier.
+    @return board identifier, id.
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  sprintf(AdafruitIO_Board::_id, "%06x", ESP.getChipId());
+  return AdafruitIO_Board::_id;
+}
+
+#elif defined(ARDUINO_STM32_FEATHER)
+
+/*******************************************************/
+/*!
+    @brief  Assigns an identifier to a STM32 Feather.
+    @return board identifier, id.
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  uint32_t *p_unique_id = (uint32_t *)(0x1FFF7A10);
+  sprintf(AdafruitIO_Board::_id, "%08lX%08lX%08lX", p_unique_id[2],
+          p_unique_id[1], p_unique_id[0]);
+  return AdafruitIO_Board::_id;
+}
+
+#else
+
+/*******************************************************/
+/*!
+    @brief   Identifies an unknown board type.
+    @return  "unknown"
+*/
+/*******************************************************/
+char *AdafruitIO_Board::id() {
+  strcpy(AdafruitIO_Board::_id, "unknown");
+  return AdafruitIO_Board::_id;
+}
+
+#endif