// SPDX-License-Identifier: GPL-2.0 /* * Parade TrueTouch(TM) Standard Product V5 Module. * * Copyright (C) 2015 Parade Technologies * Copyright (C) 2012-2015 Cypress Semiconductor * Copyright (C) 2018 Bootlin * * Authors: Mylène Josserand <[email protected]> * Alistair Francis <[email protected]> */ #include <linux/crc-itu-t.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/unaligned.h> #define CYTTSP5_NAME … #define CY_I2C_DATA_SIZE … #define HID_VERSION … #define CY_MAX_INPUT … #define CYTTSP5_PREALLOCATED_CMD_BUFFER … #define CY_BITS_PER_BTN … #define CY_NUM_BTN_EVENT_ID … #define MAX_AREA … #define HID_OUTPUT_BL_SOP … #define HID_OUTPUT_BL_EOP … #define HID_OUTPUT_BL_LAUNCH_APP … #define HID_OUTPUT_BL_LAUNCH_APP_SIZE … #define HID_OUTPUT_GET_SYSINFO … #define HID_OUTPUT_GET_SYSINFO_SIZE … #define HID_OUTPUT_MAX_CMD_SIZE … #define HID_DESC_REG … #define HID_INPUT_REG … #define HID_OUTPUT_REG … #define HID_COMMAND_REG … #define REPORT_ID_TOUCH … #define REPORT_ID_BTN … #define REPORT_SIZE_5 … #define REPORT_SIZE_8 … #define REPORT_SIZE_16 … /* Touch reports offsets */ /* Header offsets */ #define TOUCH_REPORT_DESC_HDR_CONTACTCOUNT … /* Record offsets */ #define TOUCH_REPORT_DESC_CONTACTID … #define TOUCH_REPORT_DESC_X … #define TOUCH_REPORT_DESC_Y … #define TOUCH_REPORT_DESC_P … #define TOUCH_REPORT_DESC_MAJ … #define TOUCH_REPORT_DESC_MIN … /* HID */ #define HID_TOUCH_REPORT_ID … #define HID_BTN_REPORT_ID … #define HID_APP_RESPONSE_REPORT_ID … #define HID_APP_OUTPUT_REPORT_ID … #define HID_BL_RESPONSE_REPORT_ID … #define HID_BL_OUTPUT_REPORT_ID … #define HID_RESPONSE_REPORT_ID … #define HID_OUTPUT_RESPONSE_REPORT_OFFSET … #define HID_OUTPUT_RESPONSE_CMD_OFFSET … #define HID_OUTPUT_RESPONSE_CMD_MASK … #define HID_SYSINFO_SENSING_OFFSET … #define HID_SYSINFO_BTN_OFFSET … #define HID_SYSINFO_BTN_MASK … #define HID_SYSINFO_MAX_BTN … #define HID_CMD_SET_POWER … #define HID_POWER_ON … #define HID_POWER_SLEEP … #define CY_HID_OUTPUT_TIMEOUT_MS … #define CY_HID_OUTPUT_GET_SYSINFO_TIMEOUT_MS … #define CY_HID_GET_HID_DESCRIPTOR_TIMEOUT_MS … #define CY_HID_SET_POWER_TIMEOUT … /* maximum number of concurrent tracks */ #define TOUCH_REPORT_SIZE … #define TOUCH_INPUT_HEADER_SIZE … #define BTN_REPORT_SIZE … #define BTN_INPUT_HEADER_SIZE … #define MAX_CY_TCH_T_IDS … /* All usage pages for Touch Report */ #define TOUCH_REPORT_USAGE_PG_X … #define TOUCH_REPORT_USAGE_PG_Y … #define TOUCH_REPORT_USAGE_PG_P … #define TOUCH_REPORT_USAGE_PG_CONTACTID … #define TOUCH_REPORT_USAGE_PG_CONTACTCOUNT … #define TOUCH_REPORT_USAGE_PG_MAJ … #define TOUCH_REPORT_USAGE_PG_MIN … #define TOUCH_COL_USAGE_PG … #define SET_CMD_LOW(byte, bits) … #define SET_CMD_HIGH(byte, bits) … #define SET_CMD_OPCODE(byte, opcode) … #define SET_CMD_REPORT_TYPE(byte, type) … #define SET_CMD_REPORT_ID(byte, id) … /* System Information interface definitions */ struct cyttsp5_sensing_conf_data_dev { … } __packed; struct cyttsp5_sensing_conf_data { … }; enum cyttsp5_tch_abs { … }; struct cyttsp5_tch_abs_params { … }; struct cyttsp5_touch { … }; struct cyttsp5_sysinfo { … }; struct cyttsp5_hid_desc { … } __packed; struct cyttsp5 { … }; /* * For what is understood in the datasheet, the register does not * matter. For consistency, use the Input Register address * but it does mean anything to the device. The important data * to send is the I2C address */ static int cyttsp5_read(struct cyttsp5 *ts, u8 *buf, u32 max) { … } static int cyttsp5_write(struct cyttsp5 *ts, unsigned int reg, u8 *data, size_t size) { … } static void cyttsp5_get_touch_axis(int *axis, int size, int max, u8 *xy_data, int bofs) { … } static void cyttsp5_get_touch_record(struct cyttsp5 *ts, struct cyttsp5_touch *touch, u8 *xy_data) { … } static void cyttsp5_get_mt_touches(struct cyttsp5 *ts, struct cyttsp5_touch *tch, int num_cur_tch) { … } static int cyttsp5_mt_attention(struct device *dev) { … } static int cyttsp5_setup_input_device(struct device *dev) { … } static int cyttsp5_parse_dt_key_code(struct device *dev) { … } static int cyttsp5_btn_attention(struct device *dev) { … } static int cyttsp5_validate_cmd_response(struct cyttsp5 *ts, u8 code) { … } static void cyttsp5_si_get_btn_data(struct cyttsp5 *ts) { … } static int cyttsp5_get_sysinfo_regs(struct cyttsp5 *ts) { … } static int cyttsp5_hid_output_get_sysinfo(struct cyttsp5 *ts) { … } static int cyttsp5_power_control(struct cyttsp5 *ts, bool on) { … } static int cyttsp5_hid_output_bl_launch_app(struct cyttsp5 *ts) { … } static int cyttsp5_get_hid_descriptor(struct cyttsp5 *ts, struct cyttsp5_hid_desc *desc) { … } static int fill_tch_abs(struct cyttsp5_tch_abs_params *tch_abs, int report_size, int offset) { … } static irqreturn_t cyttsp5_handle_irq(int irq, void *handle) { … } static int cyttsp5_deassert_int(struct cyttsp5 *ts) { … } static int cyttsp5_fill_all_touch(struct cyttsp5 *ts) { … } static int cyttsp5_startup(struct cyttsp5 *ts) { … } static void cyttsp5_cleanup(void *data) { … } static int cyttsp5_probe(struct device *dev, struct regmap *regmap, int irq, const char *name) { … } static int cyttsp5_i2c_probe(struct i2c_client *client) { … } static const struct of_device_id cyttsp5_of_match[] = …; MODULE_DEVICE_TABLE(of, cyttsp5_of_match); static const struct i2c_device_id cyttsp5_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, cyttsp5_i2c_id); static int __maybe_unused cyttsp5_suspend(struct device *dev) { … } static int __maybe_unused cyttsp5_resume(struct device *dev) { … } static SIMPLE_DEV_PM_OPS(cyttsp5_pm, cyttsp5_suspend, cyttsp5_resume); static struct i2c_driver cyttsp5_i2c_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …;
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