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https://github.com/zephyrproject-rtos/zephyr
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44f373e806
Port the lis2mdl sensor driver on top of the lis2mdl_StdC HAL interface (in modules/hal/st/sensor/stmemsc/). Signed-off-by: Armando Visconti <armando.visconti@st.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/* ST Microelectronics LIS2MDL 3-axis magnetometer sensor
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*
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* Copyright (c) 2019 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/lis2mdl.pdf
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*/
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#include <string.h>
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#include <drivers/i2c.h>
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#include <logging/log.h>
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#include "lis2mdl.h"
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#ifdef DT_ST_LIS2MDL_BUS_I2C
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#define LOG_LEVEL CONFIG_SENSOR_LOG_LEVEL
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LOG_MODULE_DECLARE(LIS2MDL);
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static int lis2mdl_i2c_read(struct device *dev, u8_t reg_addr,
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u8_t *value, u16_t len)
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{
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struct lis2mdl_data *data = dev->driver_data;
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const struct lis2mdl_config *cfg = dev->config->config_info;
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return i2c_burst_read(data->bus, cfg->i2c_slv_addr,
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reg_addr, value, len);
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}
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static int lis2mdl_i2c_write(struct device *dev, u8_t reg_addr,
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u8_t *value, u16_t len)
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{
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struct lis2mdl_data *data = dev->driver_data;
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const struct lis2mdl_config *cfg = dev->config->config_info;
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return i2c_burst_write(data->bus, cfg->i2c_slv_addr,
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reg_addr, value, len);
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}
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int lis2mdl_i2c_init(struct device *dev)
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{
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struct lis2mdl_data *data = dev->driver_data;
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data->ctx_i2c.read_reg = (lis2mdl_read_ptr) lis2mdl_i2c_read;
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data->ctx_i2c.write_reg = (lis2mdl_write_ptr) lis2mdl_i2c_write;
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data->ctx = &data->ctx_i2c;
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data->ctx->handle = dev;
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return 0;
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}
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#endif /* DT_ST_LIS2MDL_BUS_I2C */
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