60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* Copyright (c) 2024, Croxel Inc
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* Copyright (c) 2024, Embeint Inc
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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_NRFX_TWIM_COMMON_H_
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#define ZEPHYR_DRIVERS_I2C_I2C_NRFX_TWIM_COMMON_H_
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#include <zephyr/device.h>
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#include <zephyr/pm/device.h>
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#include <nrfx_twim.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define I2C_NRFX_TWIM_INVALID_FREQUENCY ((nrf_twim_frequency_t)-1)
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#define I2C_NRFX_TWIM_FREQUENCY(bitrate) \
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(bitrate == I2C_BITRATE_STANDARD ? NRF_TWIM_FREQ_100K \
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: bitrate == 250000 ? NRF_TWIM_FREQ_250K \
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: bitrate == I2C_BITRATE_FAST \
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? NRF_TWIM_FREQ_400K \
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: IF_ENABLED(NRF_TWIM_HAS_1000_KHZ_FREQ, \
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(bitrate == I2C_BITRATE_FAST_PLUS ? NRF_TWIM_FREQ_1000K :)) \
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I2C_NRFX_TWIM_INVALID_FREQUENCY)
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#define I2C(idx) DT_NODELABEL(i2c##idx)
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#define I2C_HAS_PROP(idx, prop) DT_NODE_HAS_PROP(I2C(idx), prop)
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#define I2C_FREQUENCY(idx) I2C_NRFX_TWIM_FREQUENCY(DT_PROP_OR(I2C(idx), clock_frequency, \
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I2C_BITRATE_STANDARD))
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struct i2c_nrfx_twim_common_config {
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nrfx_twim_t twim;
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nrfx_twim_config_t twim_config;
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nrfx_twim_evt_handler_t event_handler;
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uint16_t msg_buf_size;
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void (*irq_connect)(void);
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const struct pinctrl_dev_config *pcfg;
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uint8_t *msg_buf;
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uint16_t max_transfer_size;
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};
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int i2c_nrfx_twim_common_init(const struct device *dev);
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int i2c_nrfx_twim_configure(const struct device *dev, uint32_t i2c_config);
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int i2c_nrfx_twim_recover_bus(const struct device *dev);
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int i2c_nrfx_twim_msg_transfer(const struct device *dev, uint8_t flags, uint8_t *buf,
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size_t buf_len, uint16_t i2c_addr);
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#ifdef CONFIG_PM_DEVICE
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int twim_nrfx_pm_action(const struct device *dev, enum pm_device_action action);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_DRIVERS_I2C_I2C_NRFX_TWIM_COMMON_H_ */
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