58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* ST Microelectronics IIS2MDC 3-axis magnetometer sensor
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*
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* Copyright (c) 2020 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Datasheet:
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* https://www.st.com/resource/en/datasheet/iis2mdc.pdf
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*/
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#define DT_DRV_COMPAT st_iis2mdc
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#include <string.h>
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#include <zephyr/logging/log.h>
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#include "iis2mdc.h"
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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LOG_MODULE_DECLARE(IIS2MDC, CONFIG_SENSOR_LOG_LEVEL);
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static int iis2mdc_i2c_read(const struct device *dev, uint8_t reg_addr,
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uint8_t *value, uint16_t len)
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{
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const struct iis2mdc_dev_config *cfg = dev->config;
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return i2c_burst_read_dt(&cfg->i2c, reg_addr, value, len);
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}
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static int iis2mdc_i2c_write(const struct device *dev, uint8_t reg_addr,
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uint8_t *value, uint16_t len)
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{
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const struct iis2mdc_dev_config *cfg = dev->config;
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return i2c_burst_write_dt(&cfg->i2c, reg_addr, value, len);
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}
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int iis2mdc_i2c_init(const struct device *dev)
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{
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struct iis2mdc_data *data = dev->data;
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const struct iis2mdc_dev_config *cfg = dev->config;
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if (!device_is_ready(cfg->i2c.bus)) {
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LOG_ERR("I2C bus is not ready");
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return -ENODEV;
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}
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data->ctx_i2c.read_reg = (stmdev_read_ptr) iis2mdc_i2c_read;
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data->ctx_i2c.write_reg = (stmdev_write_ptr) iis2mdc_i2c_write;
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data->ctx_i2c.mdelay = (stmdev_mdelay_ptr) stmemsc_mdelay;
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data->ctx = &data->ctx_i2c;
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data->ctx->handle = (void *)dev;
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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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