// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Novatek NT11205 i2c touchscreen controller as found * on the Acer Iconia One 7 B1-750 tablet. * * Copyright (c) 2023 Hans de Goede <[email protected]> */ #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/module.h> #include <linux/unaligned.h> #define NVT_TS_TOUCH_START … #define NVT_TS_TOUCH_SIZE … #define NVT_TS_PARAMETERS_START … /* These are offsets from NVT_TS_PARAMETERS_START */ #define NVT_TS_PARAMS_WIDTH … #define NVT_TS_PARAMS_HEIGHT … #define NVT_TS_PARAMS_MAX_TOUCH … #define NVT_TS_PARAMS_MAX_BUTTONS … #define NVT_TS_PARAMS_IRQ_TYPE … #define NVT_TS_PARAMS_WAKE_TYPE … #define NVT_TS_PARAMS_CHIP_ID … #define NVT_TS_PARAMS_SIZE … #define NVT_TS_SUPPORTED_WAKE_TYPE … #define NVT_TS_SUPPORTED_CHIP_ID … #define NVT_TS_MAX_TOUCHES … #define NVT_TS_MAX_SIZE … #define NVT_TS_TOUCH_INVALID … #define NVT_TS_TOUCH_SLOT_SHIFT … #define NVT_TS_TOUCH_TYPE_MASK … #define NVT_TS_TOUCH_NEW … #define NVT_TS_TOUCH_UPDATE … #define NVT_TS_TOUCH_RELEASE … static const int nvt_ts_irq_type[4] = …; struct nvt_ts_data { … }; static int nvt_ts_read_data(struct i2c_client *client, u8 reg, u8 *data, int count) { … } static irqreturn_t nvt_ts_irq(int irq, void *dev_id) { … } static int nvt_ts_start(struct input_dev *dev) { … } static void nvt_ts_stop(struct input_dev *dev) { … } static int nvt_ts_suspend(struct device *dev) { … } static int nvt_ts_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(nvt_ts_pm_ops, nvt_ts_suspend, nvt_ts_resume); static int nvt_ts_probe(struct i2c_client *client) { … } static const struct i2c_device_id nvt_ts_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, nvt_ts_i2c_id); static struct i2c_driver nvt_ts_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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