modified example accordingto latest version of irext-core

pi3-smart-remote/native-libandroidthings-0.5.1-devpreview/x86/include/pio/i2c_device.h

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SYSTEM_PERIPHERALMANAGER_I2C_DEVICE_H_
+#define SYSTEM_PERIPHERALMANAGER_I2C_DEVICE_H_
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+/// @defgroup I2c I2c device interface
+/// @brief Functions to control an I2C device.
+///
+/// These functions can be used to control an I2C device.
+/// @{
+
+typedef struct AI2cDevice AI2cDevice;
+
+/// Reads from the device.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param data Output buffer to write the data to.
+/// @param len Number of bytes to read.
+/// @return 0 on success, errno on error
+int AI2cDevice_read(const AI2cDevice* device, void* data, uint32_t len);
+
+/// Reads a byte from an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to read from.
+/// @param val Output pointer to value to read.
+/// @return 0 on success, errno on error
+int AI2cDevice_readRegByte(const AI2cDevice* device, uint8_t reg, uint8_t* val);
+
+/// Reads a word from an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to read from.
+/// @param val Output pointer to value to read.
+/// @return 0 on success, errno on error
+int AI2cDevice_readRegWord(const AI2cDevice* device,
+                           uint8_t reg,
+                           uint16_t* val);
+
+/// Reads from an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to read from.
+/// @param data Output buffer to write the data to.
+/// @param len Number of bytes to read.
+/// @return 0 on success, errno on error
+int AI2cDevice_readRegBuffer(const AI2cDevice* device,
+                             uint8_t reg,
+                             void* data,
+                             uint32_t len);
+
+/// Writes to the device.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param data Buffer to write.
+/// @param len Number of bytes to write.
+/// @return 0 on success, errno on error
+int AI2cDevice_write(const AI2cDevice* device, const void* data, uint32_t len);
+
+/// Writes a byte to an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to write to.
+/// @param val Value to write.
+/// @return 0 on success, errno on error
+int AI2cDevice_writeRegByte(const AI2cDevice* device, uint8_t reg, uint8_t val);
+
+/// Writes a word to an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to write to.
+/// @param val Value to write.
+/// @return 0 on success, errno on error
+int AI2cDevice_writeRegWord(const AI2cDevice* device,
+                            uint8_t reg,
+                            uint16_t val);
+
+/// Writes to an I2C register.
+/// @param device Pointer to the AI2cDevice struct.
+/// @param reg Register to write to.
+/// @param data Data to write.
+/// @param len Number of bytes to write.
+/// @return 0 on success, errno on error
+int AI2cDevice_writeRegBuffer(const AI2cDevice* device,
+                              uint8_t reg,
+                              const void* data,
+                              uint32_t len);
+
+/// Destroys a AI2cDevice struct.
+/// @param device Pointer to the AI2cDevice struct.
+void AI2cDevice_delete(AI2cDevice* device);
+
+/// @}
+
+__END_DECLS
+
+#endif  // SYSTEM_PERIPHERALMANAGER_I2C_DEVICE_H_