55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/* ST Microelectronics STTS751 temperature 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/stts751.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 "stts751.h"
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#ifdef DT_ST_STTS751_BUS_I2C
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#define LOG_LEVEL CONFIG_SENSOR_LOG_LEVEL
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LOG_MODULE_DECLARE(STTS751);
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static int stts751_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 stts751_data *data = dev->driver_data;
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const struct stts751_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 stts751_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 stts751_data *data = dev->driver_data;
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const struct stts751_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 stts751_i2c_init(struct device *dev)
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{
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struct stts751_data *data = dev->driver_data;
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data->ctx_i2c.read_reg = (stts751_read_ptr) stts751_i2c_read;
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data->ctx_i2c.write_reg = (stts751_write_ptr) stts751_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_STTS751_BUS_I2C */
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