From c5bb6052d624ba2ef627484624bbb77180fbe8f8 Mon Sep 17 00:00:00 2001
From: "Kwabena W. Agyeman" <kwagyeman@live.com>
Date: Thu, 10 Sep 2020 22:28:43 -0700
Subject: [PATCH] Fixed ESP32/8266 compile errors

---
 library.properties |  2 +-
 src/openmvrpc.cpp  | 14 ++++++++++++++
 src/openmvrpc.h    |  6 ++++++
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/library.properties b/library.properties
index f1432c3..38911d8 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=OpenMV Arduino RPC
-version=1.0.1
+version=1.0.2
 author=OpenMV
 maintainer=OpenMV
 sentence=OpenMV Arduino RPC Interface Library
diff --git a/src/openmvrpc.cpp b/src/openmvrpc.cpp
index 2b5e30a..e6db034 100644
--- a/src/openmvrpc.cpp
+++ b/src/openmvrpc.cpp
@@ -27,6 +27,14 @@
 // Master <-- Slave magic DATA ack, n-byte payload, CRC
 //
 
+#ifndef min
+#define min(a,b) ((a)<(b)?(a):(b))
+#endif
+
+#ifndef max
+#define max(a,b) ((a)>(b)?(a):(b))
+#endif
+
 using namespace openmv;
 
 uint8_t *openmv::__buff = NULL;
@@ -669,6 +677,7 @@ bool rpc_slave::loop(unsigned long recv_timeout, unsigned long send_timeout)
     return false;
 }
 
+#ifndef ARDUINO_ARCH_ESP8266
 void rpc_can_master::_flush()
 {
     for (int i = 0, ii = CAN.parsePacket(); i < ii; i++) CAN.read();
@@ -740,6 +749,7 @@ bool rpc_can_slave::put_bytes(uint8_t *data, size_t size, unsigned long timeout)
 
     return i == size;
 }
+#endif
 
 void rpc_i2c_master::_flush()
 {
@@ -763,7 +773,9 @@ bool rpc_i2c_master::get_bytes(uint8_t *buff, size_t size, unsigned long timeout
         for (size_t j = 0; j < request_size; j++) buff[i+j] = Wire.read();
     }
 
+#if (!defined(ARDUINO_ARCH_ESP32)) && (!defined(ARDUINO_ARCH_ESP8266))
     Wire.end();
+#endif
     if (ok) ok = ok && (!_same(buff, size));
     if (!ok) delay(_get_short_timeout);
     return ok;
@@ -786,7 +798,9 @@ bool rpc_i2c_master::put_bytes(uint8_t *data, size_t size, unsigned long timeout
         if ((Wire.write(data + i, request_size) != request_size) || Wire.endTransmission(request_stop)) { ok = false; break; }
     }
 
+#if (!defined(ARDUINO_ARCH_ESP32)) && (!defined(ARDUINO_ARCH_ESP8266))
     Wire.end();
+#endif
     return ok;
 }
 
diff --git a/src/openmvrpc.h b/src/openmvrpc.h
index 3a712d7..82f1fe0 100644
--- a/src/openmvrpc.h
+++ b/src/openmvrpc.h
@@ -8,7 +8,9 @@
 #define __OPENMVRPC__
 
 #include <Arduino.h>
+#ifndef ARDUINO_ARCH_ESP8266
 #include <CAN.h>
+#endif
 #ifdef ARDUINO_ARCH_AVR
 #include <SoftwareSerial.h>
 #endif // ARDUINO_ARCH_AVR
@@ -215,6 +217,7 @@ class rpc_slave : public rpc
     bool __register_callback(uint32_t hash, rpc_callback_type_t type, void *value);
 };
 
+#ifndef ARDUINO_ARCH_ESP8266
 class rpc_can_master : public rpc_master
 {
 public:
@@ -248,6 +251,7 @@ class rpc_can_slave : public rpc_slave
     long __bit_rate;
     rpc_can_slave(const rpc_can_slave &);
 };
+#endif
 
 class rpc_i2c_master : public rpc_master
 {
@@ -276,7 +280,9 @@ class rpc_i2c_slave : public rpc_slave
     virtual bool get_bytes(uint8_t *buff, size_t size, unsigned long timeout) override;
     virtual bool put_bytes(uint8_t *data, size_t size, unsigned long timeout) override;
     virtual void begin() override { Wire.onReceive(onReceiveHandler); Wire.onRequest(onRequestHandler); Wire.begin(__slave_addr); }
+#if (!defined(ARDUINO_ARCH_ESP32)) && (!defined(ARDUINO_ARCH_ESP8266))
     virtual void end() override { Wire.end(); }
+#endif
 protected:
     virtual uint32_t _stream_writer_queue_depth_max() override { return 1; }
 private: