| #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 |