// SPDX-License-Identifier: GPL-2.0-only #include <linux/crc-ccitt.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/ihex.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/interrupt.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/sizes.h> #include <linux/slab.h> #include <linux/unaligned.h> #define ILI2XXX_POLL_PERIOD … #define ILI210X_DATA_SIZE … #define ILI211X_DATA_SIZE … #define ILI251X_DATA_SIZE1 … #define ILI251X_DATA_SIZE2 … /* Touchscreen commands */ #define REG_TOUCHDATA … #define REG_PANEL_INFO … #define REG_FIRMWARE_VERSION … #define REG_PROTOCOL_VERSION … #define REG_KERNEL_VERSION … #define REG_IC_BUSY … #define REG_IC_BUSY_NOT_BUSY … #define REG_GET_MODE … #define REG_GET_MODE_AP … #define REG_GET_MODE_BL … #define REG_SET_MODE_AP … #define REG_SET_MODE_BL … #define REG_WRITE_DATA … #define REG_WRITE_ENABLE … #define REG_READ_DATA_CRC … #define REG_CALIBRATE … #define ILI251X_FW_FILENAME … struct ili2xxx_chip { … }; struct ili210x { … }; static int ili210x_read_reg(struct i2c_client *client, u8 reg, void *buf, size_t len) { … } static int ili210x_read_touch_data(struct i2c_client *client, u8 *data) { … } static bool ili210x_touchdata_to_coords(const u8 *touchdata, unsigned int finger, unsigned int *x, unsigned int *y, unsigned int *z) { … } static bool ili210x_check_continue_polling(const u8 *data, bool touch) { … } static const struct ili2xxx_chip ili210x_chip = …; static int ili211x_read_touch_data(struct i2c_client *client, u8 *data) { … } static bool ili211x_touchdata_to_coords(const u8 *touchdata, unsigned int finger, unsigned int *x, unsigned int *y, unsigned int *z) { … } static bool ili211x_decline_polling(const u8 *data, bool touch) { … } static const struct ili2xxx_chip ili211x_chip = …; static bool ili212x_touchdata_to_coords(const u8 *touchdata, unsigned int finger, unsigned int *x, unsigned int *y, unsigned int *z) { … } static bool ili212x_check_continue_polling(const u8 *data, bool touch) { … } static const struct ili2xxx_chip ili212x_chip = …; static int ili251x_read_reg_common(struct i2c_client *client, u8 reg, void *buf, size_t len, unsigned int delay) { … } static int ili251x_read_reg(struct i2c_client *client, u8 reg, void *buf, size_t len) { … } static int ili251x_read_touch_data(struct i2c_client *client, u8 *data) { … } static bool ili251x_touchdata_to_coords(const u8 *touchdata, unsigned int finger, unsigned int *x, unsigned int *y, unsigned int *z) { … } static bool ili251x_check_continue_polling(const u8 *data, bool touch) { … } static const struct ili2xxx_chip ili251x_chip = …; static bool ili210x_report_events(struct ili210x *priv, u8 *touchdata) { … } static irqreturn_t ili210x_irq(int irq, void *irq_data) { … } static int ili251x_firmware_update_resolution(struct device *dev) { … } static ssize_t ili251x_firmware_update_firmware_version(struct device *dev) { … } static ssize_t ili251x_firmware_update_kernel_version(struct device *dev) { … } static ssize_t ili251x_firmware_update_protocol_version(struct device *dev) { … } static ssize_t ili251x_firmware_update_ic_mode(struct device *dev) { … } static int ili251x_firmware_update_cached_state(struct device *dev) { … } static ssize_t ili251x_firmware_version_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(firmware_version, 0444, ili251x_firmware_version_show, NULL); static ssize_t ili251x_kernel_version_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(kernel_version, 0444, ili251x_kernel_version_show, NULL); static ssize_t ili251x_protocol_version_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(protocol_version, 0444, ili251x_protocol_version_show, NULL); static ssize_t ili251x_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(mode, 0444, ili251x_mode_show, NULL); static ssize_t ili210x_calibrate(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(calibrate, S_IWUSR, NULL, ili210x_calibrate); static const u8 *ili251x_firmware_to_buffer(const struct firmware *fw, u16 *ac_end, u16 *df_end) { … } /* Switch mode between Application and BootLoader */ static int ili251x_switch_ic_mode(struct i2c_client *client, u8 cmd_mode) { … } static int ili251x_firmware_busy(struct i2c_client *client) { … } static int ili251x_firmware_write_to_ic(struct device *dev, const u8 *fwbuf, u16 start, u16 end, u8 dataflash) { … } static int ili251x_firmware_reset(struct i2c_client *client) { … } static void ili210x_hardware_reset(struct gpio_desc *reset_gpio) { … } static int ili210x_do_firmware_update(struct ili210x *priv, const u8 *fwbuf, u16 ac_end, u16 df_end) { … } static ssize_t ili210x_firmware_update_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(firmware_update, 0200, NULL, ili210x_firmware_update_store); static struct attribute *ili210x_attrs[] = …; static umode_t ili210x_attributes_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static const struct attribute_group ili210x_group = …; __ATTRIBUTE_GROUPS(…); static void ili210x_power_down(void *data) { … } static void ili210x_stop(void *data) { … } static int ili210x_i2c_probe(struct i2c_client *client) { … } static const struct i2c_device_id ili210x_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, ili210x_i2c_id); static const struct of_device_id ili210x_dt_ids[] = …; MODULE_DEVICE_TABLE(of, ili210x_dt_ids); static struct i2c_driver ili210x_ts_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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