75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* lsm6dsl_i2c.c - I2C routines for LSM6DSL driver
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*/
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/*
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* Copyright (c) 2018 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT st_lsm6dsl
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#include <string.h>
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#include <zephyr/logging/log.h>
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#include "lsm6dsl.h"
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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LOG_MODULE_DECLARE(LSM6DSL, CONFIG_SENSOR_LOG_LEVEL);
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static int lsm6dsl_i2c_read_data(const struct device *dev, uint8_t reg_addr,
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uint8_t *value, uint8_t len)
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{
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const struct lsm6dsl_config *cfg = dev->config;
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return i2c_burst_read_dt(&cfg->bus_cfg.i2c, reg_addr, value, len);
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}
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static int lsm6dsl_i2c_write_data(const struct device *dev, uint8_t reg_addr,
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uint8_t *value, uint8_t len)
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{
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const struct lsm6dsl_config *cfg = dev->config;
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return i2c_burst_write_dt(&cfg->bus_cfg.i2c, reg_addr, value, len);
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}
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static int lsm6dsl_i2c_read_reg(const struct device *dev, uint8_t reg_addr,
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uint8_t *value)
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{
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const struct lsm6dsl_config *cfg = dev->config;
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return i2c_reg_read_byte_dt(&cfg->bus_cfg.i2c, reg_addr, value);
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}
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static int lsm6dsl_i2c_update_reg(const struct device *dev, uint8_t reg_addr,
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uint8_t mask, uint8_t value)
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{
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const struct lsm6dsl_config *cfg = dev->config;
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return i2c_reg_update_byte_dt(&cfg->bus_cfg.i2c, reg_addr, mask, value);
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}
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static const struct lsm6dsl_transfer_function lsm6dsl_i2c_transfer_fn = {
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.read_data = lsm6dsl_i2c_read_data,
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.write_data = lsm6dsl_i2c_write_data,
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.read_reg = lsm6dsl_i2c_read_reg,
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.update_reg = lsm6dsl_i2c_update_reg,
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};
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int lsm6dsl_i2c_init(const struct device *dev)
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{
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struct lsm6dsl_data *data = dev->data;
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const struct lsm6dsl_config *cfg = dev->config;
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data->hw_tf = &lsm6dsl_i2c_transfer_fn;
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if (!device_is_ready(cfg->bus_cfg.i2c.bus)) {
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return -ENODEV;
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}
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return 0;
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}
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
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