// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) ST-Ericsson SA 2010 * Author: Naveen Kumar G <[email protected]> for ST-Ericsson */ #include <linux/bitops.h> #include <linux/delay.h> #include <linux/gpio/consumer.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/kernel.h> #include <linux/module.h> #include <linux/property.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/types.h> #define MAX_FINGERS … #define RESET_DELAY … #define PENUP_TIMEOUT … #define DELTA_MIN … #define MASK_BITS … #define SHIFT_8 … #define SHIFT_2 … #define LENGTH_OF_BUFFER … #define I2C_RETRY_COUNT … #define BU21013_SENSORS_BTN_0_7_REG … #define BU21013_SENSORS_BTN_8_15_REG … #define BU21013_SENSORS_BTN_16_23_REG … #define BU21013_X1_POS_MSB_REG … #define BU21013_X1_POS_LSB_REG … #define BU21013_Y1_POS_MSB_REG … #define BU21013_Y1_POS_LSB_REG … #define BU21013_X2_POS_MSB_REG … #define BU21013_X2_POS_LSB_REG … #define BU21013_Y2_POS_MSB_REG … #define BU21013_Y2_POS_LSB_REG … #define BU21013_INT_CLR_REG … #define BU21013_INT_MODE_REG … #define BU21013_GAIN_REG … #define BU21013_OFFSET_MODE_REG … #define BU21013_XY_EDGE_REG … #define BU21013_RESET_REG … #define BU21013_CALIB_REG … #define BU21013_DONE_REG … #define BU21013_SENSOR_0_7_REG … #define BU21013_SENSOR_8_15_REG … #define BU21013_SENSOR_16_23_REG … #define BU21013_POS_MODE1_REG … #define BU21013_POS_MODE2_REG … #define BU21013_CLK_MODE_REG … #define BU21013_IDLE_REG … #define BU21013_FILTER_REG … #define BU21013_TH_ON_REG … #define BU21013_TH_OFF_REG … #define BU21013_RESET_ENABLE … #define BU21013_SENSORS_EN_0_7 … #define BU21013_SENSORS_EN_8_15 … #define BU21013_SENSORS_EN_16_23 … #define BU21013_POS_MODE1_0 … #define BU21013_POS_MODE1_1 … #define BU21013_POS_MODE1_2 … #define BU21013_POS_MODE2_ZERO … #define BU21013_POS_MODE2_AVG1 … #define BU21013_POS_MODE2_AVG2 … #define BU21013_POS_MODE2_EN_XY … #define BU21013_POS_MODE2_EN_RAW … #define BU21013_POS_MODE2_MULTI … #define BU21013_CLK_MODE_DIV … #define BU21013_CLK_MODE_EXT … #define BU21013_CLK_MODE_CALIB … #define BU21013_IDLET_0 … #define BU21013_IDLET_1 … #define BU21013_IDLET_2 … #define BU21013_IDLET_3 … #define BU21013_IDLE_INTERMIT_EN … #define BU21013_DELTA_0_6 … #define BU21013_FILTER_EN … #define BU21013_INT_MODE_LEVEL … #define BU21013_INT_MODE_EDGE … #define BU21013_GAIN_0 … #define BU21013_GAIN_1 … #define BU21013_GAIN_2 … #define BU21013_OFFSET_MODE_DEFAULT … #define BU21013_OFFSET_MODE_MOVE … #define BU21013_OFFSET_MODE_DISABLE … #define BU21013_TH_ON_0 … #define BU21013_TH_ON_1 … #define BU21013_TH_ON_2 … #define BU21013_TH_ON_3 … #define BU21013_TH_ON_4 … #define BU21013_TH_ON_5 … #define BU21013_TH_ON_6 … #define BU21013_TH_ON_7 … #define BU21013_TH_ON_MAX … #define BU21013_TH_OFF_0 … #define BU21013_TH_OFF_1 … #define BU21013_TH_OFF_2 … #define BU21013_TH_OFF_3 … #define BU21013_TH_OFF_4 … #define BU21013_TH_OFF_5 … #define BU21013_TH_OFF_6 … #define BU21013_TH_OFF_7 … #define BU21013_TH_OFF_MAX … #define BU21013_X_EDGE_0 … #define BU21013_X_EDGE_1 … #define BU21013_X_EDGE_2 … #define BU21013_X_EDGE_3 … #define BU21013_Y_EDGE_0 … #define BU21013_Y_EDGE_1 … #define BU21013_Y_EDGE_2 … #define BU21013_Y_EDGE_3 … #define BU21013_DONE … #define BU21013_NUMBER_OF_X_SENSORS … #define BU21013_NUMBER_OF_Y_SENSORS … #define DRIVER_TP … /** * struct bu21013_ts - touch panel data structure * @client: pointer to the i2c client * @in_dev: pointer to the input device structure * @props: the device coordinate transformation properties * @regulator: pointer to the Regulator used for touch screen * @cs_gpiod: chip select GPIO line * @int_gpiod: touch interrupt GPIO line * @touch_x_max: maximum X coordinate reported by the device * @touch_y_max: maximum Y coordinate reported by the device * @x_flip: indicates that the driver should invert X coordinate before * reporting * @y_flip: indicates that the driver should invert Y coordinate before * reporting * @touch_stopped: touch stop flag * * Touch panel device data structure */ struct bu21013_ts { … }; static int bu21013_read_block_data(struct bu21013_ts *ts, u8 *buf) { … } static int bu21013_do_touch_report(struct bu21013_ts *ts) { … } static irqreturn_t bu21013_gpio_irq(int irq, void *device_data) { … } static int bu21013_init_chip(struct bu21013_ts *ts) { … } static void bu21013_power_off(void *_ts) { … } static void bu21013_disable_chip(void *_ts) { … } static int bu21013_probe(struct i2c_client *client) { … } static void bu21013_remove(struct i2c_client *client) { … } static int bu21013_suspend(struct device *dev) { … } static int bu21013_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(bu21013_dev_pm_ops, bu21013_suspend, bu21013_resume); static const struct i2c_device_id bu21013_id[] = …; MODULE_DEVICE_TABLE(i2c, bu21013_id); static struct i2c_driver bu21013_driver = …; module_i2c_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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