1 /* 2 * Copyright (c) 2017 Linaro Limited 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_ 8 #define ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_ 9 10 #include <zephyr/drivers/i2c.h> 11 #include <zephyr/dt-bindings/i2c/i2c.h> 12 #include <zephyr/logging/log.h> 13 14 #ifdef __cplusplus 15 extern "C" { 16 #endif 17 i2c_map_dt_bitrate(uint32_t bitrate)18static inline uint32_t i2c_map_dt_bitrate(uint32_t bitrate) 19 { 20 switch (bitrate) { 21 case I2C_BITRATE_STANDARD: 22 return I2C_SPEED_STANDARD << I2C_SPEED_SHIFT; 23 case I2C_BITRATE_FAST: 24 return I2C_SPEED_FAST << I2C_SPEED_SHIFT; 25 case I2C_BITRATE_FAST_PLUS: 26 return I2C_SPEED_FAST_PLUS << I2C_SPEED_SHIFT; 27 case I2C_BITRATE_HIGH: 28 return I2C_SPEED_HIGH << I2C_SPEED_SHIFT; 29 case I2C_BITRATE_ULTRA: 30 return I2C_SPEED_ULTRA << I2C_SPEED_SHIFT; 31 } 32 33 LOG_ERR("Invalid I2C bit rate value"); 34 35 return 0; 36 } 37 38 #ifdef __cplusplus 39 } 40 #endif 41 42 #endif /* ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_ */ 43
