| /* |
| * 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_MCU_SIM_I2C_ |
| #define H_MCU_SIM_I2C_ |
| |
| #include <inttypes.h> |
| #include <hal/hal_i2c.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * Sends a start condition and writes <len> bytes of data on the i2c bus. |
| * This API does NOT issue a stop condition unless `last_op` is set to `1`. |
| * You must stop the bus after successful or unsuccessful write attempts. |
| * This API is blocking until an error or NaK occurs. Timeout is platform |
| * dependent. |
| * |
| * @param i2c_num The number of the I2C device being written to |
| * @param pdata The data to write to the I2C bus |
| * @param timeout How long to wait for transaction to complete in ticks |
| * @param last_op Master should send a STOP at the end to signify end of |
| * transaction. |
| * |
| * @return 0 on success, and non-zero error code on failure |
| */ |
| typedef int (*hal_i2c_sim_master_write_t)(uint8_t i2c_num, |
| struct hal_i2c_master_data *pdata, uint32_t timeout, |
| uint8_t last_op); |
| |
| /** |
| * Sends a start condition and reads <len> bytes of data on the i2c bus. |
| * This API does NOT issue a stop condition unless `last_op` is set to `1`. |
| * You must stop the bus after successful or unsuccessful write attempts. |
| * This API is blocking until an error or NaK occurs. Timeout is platform |
| * dependent. |
| * |
| * @param i2c_num The number of the I2C device being written to |
| * @param pdata The location to place read data |
| * @param timeout How long to wait for transaction to complete in ticks |
| * @param last_op Master should send a STOP at the end to signify end of |
| * transaction. |
| * |
| * @return 0 on success, and non-zero error code on failure |
| */ |
| typedef int (*hal_i2c_sim_master_read_t)(uint8_t i2c_num, |
| struct hal_i2c_master_data *pdata, |
| uint32_t timeout, uint8_t last_op); |
| |
| struct hal_i2c_sim_driver { |
| hal_i2c_sim_master_write_t sd_write; |
| hal_i2c_sim_master_read_t sd_read; |
| |
| /* 7-bit I2C device address */ |
| uint8_t addr; |
| |
| /* Reserved for future use */ |
| uint8_t rsvd[3]; |
| |
| /* The next simulated sensor in the global sim driver list. */ |
| SLIST_ENTRY(hal_i2c_sim_driver) s_next; |
| }; |
| |
| /** |
| * Register a driver simulator |
| * |
| * @param drv The simulated driver to register |
| * |
| * @return 0 on success, non-zero on failure. |
| */ |
| int hal_i2c_sim_register(struct hal_i2c_sim_driver *drv); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* H_MCU_SIM_I2C_ */ |