| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 H_I2CN_ |
| #define H_I2CN_ |
| |
| #include <inttypes.h> |
| #include "os/mynewt.h" |
| struct hal_i2c_master_data; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * @brief Reads from an I2C slave, retrying the specified number of times on |
| * failure. |
| * |
| * @param i2c_num The index of the I2C interface to read from. |
| * @param pdata Additional parameters describing the read |
| * operation. |
| * @param timeout The time, in OS ticks, to wait for the MCU to |
| * indicate completion of each clocked byte. |
| * @param last_op 1 if this is the final message in the |
| * transaction. |
| * |
| * @return 0 on success; |
| * HAL_I2C_ERR_[...] code on failure. |
| */ |
| int i2cn_master_read(uint8_t i2c_num, struct hal_i2c_master_data *pdata, |
| uint32_t timeout, uint8_t last_op, int retries); |
| |
| /** |
| * @brief Writes to an I2C slave, retrying the specified number of times on |
| * failure. |
| * |
| * @param i2c_num The index of the I2C interface to write to. |
| * @param pdata Additional parameters describing the write |
| * operation. |
| * @param timeout The time, in OS ticks, to wait for the MCU to |
| * indicate completion of each clocked byte. |
| * @param last_op 1 if this is the final message in the |
| * transaction. |
| * |
| * @return 0 on success; |
| * HAL_I2C_ERR_[...] code on failure. |
| */ |
| int i2cn_master_write(uint8_t i2c_num, struct hal_i2c_master_data *pdata, |
| uint32_t timeout, uint8_t last_op, int retries); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |