blob: 8938e1845be1e9f9b29233f95c81a88845449cf8 [file] [log] [blame]
/* ST Microelectronics IIS2MDC 3-axis magnetometer sensor
*
* Copyright (c) 2020 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*
* Datasheet:
* https://www.st.com/resource/en/datasheet/iis2mdc.pdf
*/
#define DT_DRV_COMPAT st_iis2mdc
#include <string.h>
#include <zephyr/logging/log.h>
#include "iis2mdc.h"
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
LOG_MODULE_DECLARE(IIS2MDC, CONFIG_SENSOR_LOG_LEVEL);
static int iis2mdc_i2c_read(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint16_t len)
{
const struct iis2mdc_dev_config *cfg = dev->config;
return i2c_burst_read_dt(&cfg->i2c, reg_addr, value, len);
}
static int iis2mdc_i2c_write(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint16_t len)
{
const struct iis2mdc_dev_config *cfg = dev->config;
return i2c_burst_write_dt(&cfg->i2c, reg_addr, value, len);
}
int iis2mdc_i2c_init(const struct device *dev)
{
struct iis2mdc_data *data = dev->data;
const struct iis2mdc_dev_config *cfg = dev->config;
if (!device_is_ready(cfg->i2c.bus)) {
LOG_ERR("I2C bus is not ready");
return -ENODEV;
}
data->ctx_i2c.read_reg = (stmdev_read_ptr) iis2mdc_i2c_read;
data->ctx_i2c.write_reg = (stmdev_write_ptr) iis2mdc_i2c_write;
data->ctx_i2c.mdelay = (stmdev_mdelay_ptr) stmemsc_mdelay;
data->ctx = &data->ctx_i2c;
data->ctx->handle = (void *)dev;
return 0;
}
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */