// SPDX-License-Identifier: GPL-2.0-only #include <linux/delay.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> /* Register Map */ #define ZINITIX_SWRESET_CMD … #define ZINITIX_WAKEUP_CMD … #define ZINITIX_IDLE_CMD … #define ZINITIX_SLEEP_CMD … #define ZINITIX_CLEAR_INT_STATUS_CMD … #define ZINITIX_CALIBRATE_CMD … #define ZINITIX_SAVE_STATUS_CMD … #define ZINITIX_SAVE_CALIBRATION_CMD … #define ZINITIX_RECALL_FACTORY_CMD … #define ZINITIX_THRESHOLD … #define ZINITIX_LARGE_PALM_REJECT_AREA_TH … #define ZINITIX_DEBUG_REG … #define ZINITIX_TOUCH_MODE … #define ZINITIX_CHIP_REVISION … #define ZINITIX_FIRMWARE_VERSION … #define ZINITIX_USB_DETECT … #define ZINITIX_MINOR_FW_VERSION … #define ZINITIX_VENDOR_ID … #define ZINITIX_HW_ID … #define ZINITIX_DATA_VERSION_REG … #define ZINITIX_SUPPORTED_FINGER_NUM … #define ZINITIX_EEPROM_INFO … #define ZINITIX_INITIAL_TOUCH_MODE … #define ZINITIX_TOTAL_NUMBER_OF_X … #define ZINITIX_TOTAL_NUMBER_OF_Y … #define ZINITIX_DELAY_RAW_FOR_HOST … #define ZINITIX_BUTTON_SUPPORTED_NUM … #define ZINITIX_BUTTON_SENSITIVITY … #define ZINITIX_DUMMY_BUTTON_SENSITIVITY … #define ZINITIX_X_RESOLUTION … #define ZINITIX_Y_RESOLUTION … #define ZINITIX_POINT_STATUS_REG … #define ZINITIX_ICON_STATUS_REG … #define ZINITIX_POINT_COORD_REG … #define ZINITIX_AFE_FREQUENCY … #define ZINITIX_DND_N_COUNT … #define ZINITIX_DND_U_COUNT … #define ZINITIX_RAWDATA_REG … #define ZINITIX_EEPROM_INFO_REG … #define ZINITIX_INT_ENABLE_FLAG … #define ZINITIX_PERIODICAL_INTERRUPT_INTERVAL … #define ZINITIX_BTN_WIDTH … #define ZINITIX_CHECKSUM_RESULT … #define ZINITIX_INIT_FLASH … #define ZINITIX_WRITE_FLASH … #define ZINITIX_READ_FLASH … #define ZINITIX_INTERNAL_FLAG_02 … #define ZINITIX_INTERNAL_FLAG_03 … #define ZINITIX_I2C_CHECKSUM_WCNT … #define ZINITIX_I2C_CHECKSUM_RESULT … /* Interrupt & status register flags */ #define BIT_PT_CNT_CHANGE … #define BIT_DOWN … #define BIT_MOVE … #define BIT_UP … #define BIT_PALM … #define BIT_PALM_REJECT … #define BIT_RESERVED_0 … #define BIT_RESERVED_1 … #define BIT_WEIGHT_CHANGE … #define BIT_PT_NO_CHANGE … #define BIT_REJECT … #define BIT_PT_EXIST … #define BIT_RESERVED_2 … #define BIT_ERROR … #define BIT_DEBUG … #define BIT_ICON_EVENT … #define SUB_BIT_EXIST … #define SUB_BIT_DOWN … #define SUB_BIT_MOVE … #define SUB_BIT_UP … #define SUB_BIT_UPDATE … #define SUB_BIT_WAIT … #define DEFAULT_TOUCH_POINT_MODE … #define MAX_SUPPORTED_FINGER_NUM … #define CHIP_ON_DELAY … #define FIRMWARE_ON_DELAY … struct point_coord { … }; struct touch_event { … }; struct bt541_ts_data { … }; static int zinitix_read_data(struct i2c_client *client, u16 reg, void *values, size_t length) { … } static int zinitix_write_u16(struct i2c_client *client, u16 reg, u16 value) { … } static int zinitix_write_cmd(struct i2c_client *client, u16 reg) { … } static int zinitix_init_touch(struct bt541_ts_data *bt541) { … } static int zinitix_init_regulators(struct bt541_ts_data *bt541) { … } static int zinitix_send_power_on_sequence(struct bt541_ts_data *bt541) { … } static void zinitix_report_finger(struct bt541_ts_data *bt541, int slot, const struct point_coord *p) { … } static irqreturn_t zinitix_ts_irq_handler(int irq, void *bt541_handler) { … } static int zinitix_start(struct bt541_ts_data *bt541) { … } static int zinitix_stop(struct bt541_ts_data *bt541) { … } static int zinitix_input_open(struct input_dev *dev) { … } static void zinitix_input_close(struct input_dev *dev) { … } static int zinitix_init_input_dev(struct bt541_ts_data *bt541) { … } static int zinitix_ts_probe(struct i2c_client *client) { … } static int zinitix_suspend(struct device *dev) { … } static int zinitix_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(zinitix_pm_ops, zinitix_suspend, zinitix_resume); #ifdef CONFIG_OF static const struct of_device_id zinitix_of_match[] = …; MODULE_DEVICE_TABLE(of, zinitix_of_match); #endif static struct i2c_driver zinitix_ts_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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