3 files changed, 61 insertions, 0 deletions
diff --git a/lib/pbdrv/drv/arduino/cfg.cmake b/lib/pbdrv/drv/arduino/cfg.cmake
new file mode 100644
index 0000000..36716e3
--- /dev/null
+++ b/lib/pbdrv/drv/arduino/cfg.cmake
@@ -0,0 +1,7 @@
+if(NOT DEFINED ARDUINO)
+	return()
+endif()
+
+target_sources(pbdrv-mod PRIVATE "${CMAKE_CURRENT_LIST_DIR}/mod.cpp")
+target_link_arduino_libraries(pbdrv-mod core Wire)
+
diff --git a/lib/pbdrv/drv/arduino/mod.cpp b/lib/pbdrv/drv/arduino/mod.cpp
new file mode 100644
index 0000000..8a38a5b
--- /dev/null
+++ b/lib/pbdrv/drv/arduino/mod.cpp
@@ -0,0 +1,37 @@
+#ifndef ARDUINO
+#error This driver only works on the Arduino platform!
+#endif
+
+#include <Arduino.h>
+#include <Wire.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "../../pb.h"
+#include "../../pb-mod.h"
+#include "mod.h"
+
+static void recv_event(int bytes) {
+	uint8_t * data = (uint8_t *) malloc(bytes);
+	size_t size = 0;
+	while (Wire.available())
+		data[size++] = Wire.read();
+
+	pbdrv_i2c_recv(data, size);
+}
+
+void pbdrv_setup() {
+	Wire.begin((int) PBDRV_MOD_ADDR);
+	Wire.setWireTimeout(PB_TIMEOUT_US, true);
+	Wire.setClock(PB_CLOCK_SPEED_HZ);
+	Wire.onReceive(recv_event);
+}
+
+__weak void pbdrv_i2c_send(i2c_addr_t addr, const uint8_t * buf, size_t sz) {
+	Wire.beginTransmission((int) addr);
+	Wire.write(buf, sz);
+	Wire.endTransmission(true);
+	Wire.setWireTimeout(PB_TIMEOUT_US, true);
+}
+
diff --git a/lib/pbdrv/drv/arduino/mod.h b/lib/pbdrv/drv/arduino/mod.h
new file mode 100644
index 0000000..079941a
--- /dev/null
+++ b/lib/pbdrv/drv/arduino/mod.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief puzzle bus driver setup
+ *
+ * This function should be called from the Arduino \c setup() function.
+ */
+void pbdrv_setup();
+
+#ifdef __cplusplus
+}
+#endif
+