1 /* ST Microelectronics LIS2DH 3-axis accelerometer driver
5  * SPDX-License-Identifier: Apache-2.0
17 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
26 static int lis2dh_raw_read(const struct device *dev, uint8_t reg_addr,  in lis2dh_raw_read()  argument
29 	const struct lis2dh_config *cfg = dev->config;  in lis2dh_raw_read()
56 		return -EIO;  in lis2dh_raw_read()
63 	if (spi_transceive_dt(&cfg->bus_cfg.spi, &tx, &rx)) {  in lis2dh_raw_read()
64 		return -EIO;  in lis2dh_raw_read()
70 static int lis2dh_raw_write(const struct device *dev, uint8_t reg_addr,  in lis2dh_raw_write()  argument
73 	const struct lis2dh_config *cfg = dev->config;  in lis2dh_raw_write()
92 		return -EIO;  in lis2dh_raw_write()
99 	if (spi_write_dt(&cfg->bus_cfg.spi, &tx)) {  in lis2dh_raw_write()
100 		return -EIO;  in lis2dh_raw_write()
106 static int lis2dh_spi_read_data(const struct device *dev, uint8_t reg_addr,  in lis2dh_spi_read_data()  argument
109 	return lis2dh_raw_read(dev, reg_addr, value, len);  in lis2dh_spi_read_data()
112 static int lis2dh_spi_write_data(const struct device *dev, uint8_t reg_addr,  in lis2dh_spi_write_data()  argument
115 	return lis2dh_raw_write(dev, reg_addr, value, len);  in lis2dh_spi_write_data()
118 static int lis2dh_spi_read_reg(const struct device *dev, uint8_t reg_addr,  in lis2dh_spi_read_reg()  argument
121 	return lis2dh_raw_read(dev, reg_addr, value, 1);  in lis2dh_spi_read_reg()
124 static int lis2dh_spi_write_reg(const struct device *dev, uint8_t reg_addr,  in lis2dh_spi_write_reg()  argument
129 	return lis2dh_raw_write(dev, reg_addr, &tmp_val, 1);  in lis2dh_spi_write_reg()
132 static int lis2dh_spi_update_reg(const struct device *dev, uint8_t reg_addr,  in lis2dh_spi_update_reg()  argument
137 	lis2dh_raw_read(dev, reg_addr, &tmp_val, 1);  in lis2dh_spi_update_reg()
140 	return lis2dh_raw_write(dev, reg_addr, &tmp_val, 1);  in lis2dh_spi_update_reg()
151 int lis2dh_spi_init(const struct device *dev)  in lis2dh_spi_init()  argument
153 	struct lis2dh_data *data = dev->data;  in lis2dh_spi_init()
154 	const struct lis2dh_config *cfg = dev->config;  in lis2dh_spi_init()
156 	data->hw_tf = &lis2dh_spi_transfer_fn;  in lis2dh_spi_init()
158 	if (!spi_is_ready_dt(&cfg->bus_cfg.spi)) {  in lis2dh_spi_init()
159 		LOG_ERR("SPI bus is not ready");  in lis2dh_spi_init()
160 		return -ENODEV;  in lis2dh_spi_init()
165 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */