mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.1 KiB
90 lines
2.1 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
|
* Copyright (C) 2021 Analog Devices, Inc. |
|
* Author: Cosmin Tanislav <[email protected]> |
|
*/ |
|
|
|
#include <linux/i2c.h> |
|
#include <linux/mod_devicetable.h> |
|
#include <linux/module.h> |
|
#include <linux/regmap.h> |
|
|
|
#include "adxl367.h" |
|
|
|
#define ADXL367_I2C_FIFO_DATA 0x42 |
|
|
|
struct adxl367_i2c_state { |
|
struct regmap *regmap; |
|
}; |
|
|
|
static bool adxl367_readable_noinc_reg(struct device *dev, unsigned int reg) |
|
{ |
|
return reg == ADXL367_I2C_FIFO_DATA; |
|
} |
|
|
|
static int adxl367_i2c_read_fifo(void *context, __be16 *fifo_buf, |
|
unsigned int fifo_entries) |
|
{ |
|
struct adxl367_i2c_state *st = context; |
|
|
|
return regmap_noinc_read(st->regmap, ADXL367_I2C_FIFO_DATA, fifo_buf, |
|
fifo_entries * sizeof(*fifo_buf)); |
|
} |
|
|
|
static const struct regmap_config adxl367_i2c_regmap_config = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
.readable_noinc_reg = adxl367_readable_noinc_reg, |
|
}; |
|
|
|
static const struct adxl367_ops adxl367_i2c_ops = { |
|
.read_fifo = adxl367_i2c_read_fifo, |
|
}; |
|
|
|
static int adxl367_i2c_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct adxl367_i2c_state *st; |
|
struct regmap *regmap; |
|
|
|
st = devm_kzalloc(&client->dev, sizeof(*st), GFP_KERNEL); |
|
if (!st) |
|
return -ENOMEM; |
|
|
|
regmap = devm_regmap_init_i2c(client, &adxl367_i2c_regmap_config); |
|
if (IS_ERR(regmap)) |
|
return PTR_ERR(regmap); |
|
|
|
st->regmap = regmap; |
|
|
|
return adxl367_probe(&client->dev, &adxl367_i2c_ops, st, regmap, |
|
client->irq); |
|
} |
|
|
|
static const struct i2c_device_id adxl367_i2c_id[] = { |
|
{ "adxl367", 0 }, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, adxl367_i2c_id); |
|
|
|
static const struct of_device_id adxl367_of_match[] = { |
|
{ .compatible = "adi,adxl367" }, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(of, adxl367_of_match); |
|
|
|
static struct i2c_driver adxl367_i2c_driver = { |
|
.driver = { |
|
.name = "adxl367_i2c", |
|
.of_match_table = adxl367_of_match, |
|
}, |
|
.probe = adxl367_i2c_probe, |
|
.id_table = adxl367_i2c_id, |
|
}; |
|
|
|
module_i2c_driver(adxl367_i2c_driver); |
|
|
|
MODULE_IMPORT_NS(IIO_ADXL367); |
|
MODULE_AUTHOR("Cosmin Tanislav <[email protected]>"); |
|
MODULE_DESCRIPTION("Analog Devices ADXL367 3-axis accelerometer I2C driver"); |
|
MODULE_LICENSE("GPL");
|
|
|