// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2021 * Author(s): Giulio Benetti <[email protected]> */ #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/irq.h> #include <linux/regulator/consumer.h> #include <linux/regmap.h> #include <linux/unaligned.h> #define HY46XX_CHKSUM_CODE … #define HY46XX_FINGER_NUM … #define HY46XX_CHKSUM_LEN … #define HY46XX_THRESHOLD … #define HY46XX_GLOVE_EN … #define HY46XX_REPORT_SPEED … #define HY46XX_PWR_NOISE_EN … #define HY46XX_FILTER_DATA … #define HY46XX_GAIN … #define HY46XX_EDGE_OFFSET … #define HY46XX_RX_NR_USED … #define HY46XX_TX_NR_USED … #define HY46XX_PWR_MODE … #define HY46XX_FW_VERSION … #define HY46XX_LIB_VERSION … #define HY46XX_TP_INFO … #define HY46XX_TP_CHIP_ID … #define HY46XX_BOOT_VER … #define HY46XX_TPLEN … #define HY46XX_REPORT_PKT_LEN … #define HY46XX_MAX_SUPPORTED_POINTS … #define TOUCH_EVENT_DOWN … #define TOUCH_EVENT_UP … #define TOUCH_EVENT_CONTACT … #define TOUCH_EVENT_RESERVED … struct hycon_hy46xx_data { … }; static const struct regmap_config hycon_hy46xx_i2c_regmap_config = …; static bool hycon_hy46xx_check_checksum(struct hycon_hy46xx_data *tsdata, u8 *buf) { … } static irqreturn_t hycon_hy46xx_isr(int irq, void *dev_id) { … } struct hycon_hy46xx_attribute { … }; #define HYCON_ATTR_U8(_field, _mode, _address, _limit_low, _limit_high) … #define HYCON_ATTR_BOOL(_field, _mode, _address) … static ssize_t hycon_hy46xx_setting_show(struct device *dev, struct device_attribute *dattr, char *buf) { … } static ssize_t hycon_hy46xx_setting_store(struct device *dev, struct device_attribute *dattr, const char *buf, size_t count) { … } static HYCON_ATTR_U8(threshold, 0644, HY46XX_THRESHOLD, 0, 255); static HYCON_ATTR_BOOL(glove_enable, 0644, HY46XX_GLOVE_EN); static HYCON_ATTR_U8(report_speed, 0644, HY46XX_REPORT_SPEED, 0, 255); static HYCON_ATTR_BOOL(noise_filter_enable, 0644, HY46XX_PWR_NOISE_EN); static HYCON_ATTR_U8(filter_data, 0644, HY46XX_FILTER_DATA, 0, 5); static HYCON_ATTR_U8(gain, 0644, HY46XX_GAIN, 0, 5); static HYCON_ATTR_U8(edge_offset, 0644, HY46XX_EDGE_OFFSET, 0, 5); static HYCON_ATTR_U8(fw_version, 0444, HY46XX_FW_VERSION, 0, 255); static HYCON_ATTR_U8(lib_version, 0444, HY46XX_LIB_VERSION, 0, 255); static HYCON_ATTR_U8(tp_information, 0444, HY46XX_TP_INFO, 0, 255); static HYCON_ATTR_U8(tp_chip_id, 0444, HY46XX_TP_CHIP_ID, 0, 255); static HYCON_ATTR_U8(bootloader_version, 0444, HY46XX_BOOT_VER, 0, 255); static struct attribute *hycon_hy46xx_attrs[] = …; ATTRIBUTE_GROUPS(…); static void hycon_hy46xx_get_defaults(struct device *dev, struct hycon_hy46xx_data *tsdata) { … } static void hycon_hy46xx_get_parameters(struct hycon_hy46xx_data *tsdata) { … } static void hycon_hy46xx_disable_regulator(void *arg) { … } static int hycon_hy46xx_probe(struct i2c_client *client) { … } static const struct i2c_device_id hycon_hy46xx_id[] = …; MODULE_DEVICE_TABLE(i2c, hycon_hy46xx_id); static const struct of_device_id hycon_hy46xx_of_match[] = …; MODULE_DEVICE_TABLE(of, hycon_hy46xx_of_match); static struct i2c_driver hycon_hy46xx_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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