43 lines
864 B
C
43 lines
864 B
C
/*
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* Copyright (c) 2017 Linaro Limited
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_
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#define ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_
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#include <drivers/i2c.h>
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#include <dt-bindings/i2c/i2c.h>
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#include <logging/log.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline uint32_t i2c_map_dt_bitrate(uint32_t bitrate)
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{
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switch (bitrate) {
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case I2C_BITRATE_STANDARD:
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return I2C_SPEED_STANDARD << I2C_SPEED_SHIFT;
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case I2C_BITRATE_FAST:
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return I2C_SPEED_FAST << I2C_SPEED_SHIFT;
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case I2C_BITRATE_FAST_PLUS:
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return I2C_SPEED_FAST_PLUS << I2C_SPEED_SHIFT;
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case I2C_BITRATE_HIGH:
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return I2C_SPEED_HIGH << I2C_SPEED_SHIFT;
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case I2C_BITRATE_ULTRA:
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return I2C_SPEED_ULTRA << I2C_SPEED_SHIFT;
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}
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LOG_ERR("Invalid I2C bit rate value");
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_DRIVERS_I2C_I2C_PRIV_H_ */
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