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42 lines
864 B
42 lines
864 B
/* |
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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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