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// SPDX-License-Identifier: GPL-2.0-only
/*
* Honeywell TruStability HSC Series pressure/temperature sensor
*
* Copyright (c) 2023 Petre Rodan <petre.rodan@subdimension.ro>
*
* Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/common/documents/sps-siot-i2c-comms-digital-output-pressure-sensors-tn-008201-3-en-ciid-45841.pdf
* Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/common/documents/sps-siot-sleep-mode-technical-note-008286-1-en-ciid-155793.pdf
*/
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/iio/iio.h>
#include "hsc030pa.h"
static int hsc_i2c_recv(struct hsc_data *data)
{
struct i2c_client *client = to_i2c_client(data->dev);
struct i2c_msg msg;
int ret;
msleep_interruptible(HSC_RESP_TIME_MS);
msg.addr = client->addr;
msg.flags = client->flags | I2C_M_RD;
msg.len = HSC_REG_MEASUREMENT_RD_SIZE;
msg.buf = data->buffer;
ret = i2c_transfer(client->adapter, &msg, 1);
return (ret == 2) ? 0 : ret;
}
static int hsc_i2c_probe(struct i2c_client *client)
{
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -EOPNOTSUPP;
return hsc_common_probe(&client->dev, hsc_i2c_recv);
}
static const struct of_device_id hsc_i2c_match[] = {
{ .compatible = "honeywell,hsc030pa" },
{}
};
MODULE_DEVICE_TABLE(of, hsc_i2c_match);
static const struct i2c_device_id hsc_i2c_id[] = {
{ "hsc030pa" },
{}
};
MODULE_DEVICE_TABLE(i2c, hsc_i2c_id);
static struct i2c_driver hsc_i2c_driver = {
.driver = {
.name = "hsc030pa",
.of_match_table = hsc_i2c_match,
},
.probe = hsc_i2c_probe,
.id_table = hsc_i2c_id,
};
module_i2c_driver(hsc_i2c_driver);
MODULE_AUTHOR("Petre Rodan <petre.rodan@subdimension.ro>");
MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor i2c driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS(IIO_HONEYWELL_HSC030PA);
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