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Nama	Ukuran	Aksi
ad714x.h	1.34 MB	View DL Edit
adp5589.h	5.46 MB	View DL Edit
adxl34x.h	11.31 MB	View DL Edit
as5011.h	399 B	View DL Edit
auo-pixcir-ts.h	998 B	View DL Edit
cma3000.h	1.03 MB	View DL Edit
elan-i2c-ids.h	2.01 MB	View DL Edit
kxtj9.h	1.14 MB	View DL Edit
lm8333.h	674 B	View DL Edit
matrix_keypad.h	2.96 MB	View DL Edit
mt.h	3.37 MB	View DL Edit
navpoint.h	244 B	View DL Edit
samsung-keypad.h	1.09 MB	View DL Edit
sh_keysc.h	431 B	View DL Edit
sparse-keymap.h	1.98 MB	View DL Edit
touchscreen.h	763 B	View DL Edit
tps6507x-ts.h	535 B	View DL Edit
vivaldi-fmap.h	906 B	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/include/linux/input/matrix_keypad.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _MATRIX_KEYPAD_H
#define _MATRIX_KEYPAD_H

#include <linux/types.h>
#include <linux/input.h>
#include <linux/of.h>

#define MATRIX_MAX_ROWS		32
#define MATRIX_MAX_COLS		32

#define KEY(row, col, val)	((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\
				 (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\
				 ((val) & 0xffff))

#define KEY_ROW(k)		(((k) >> 24) & 0xff)
#define KEY_COL(k)		(((k) >> 16) & 0xff)
#define KEY_VAL(k)		((k) & 0xffff)

#define MATRIX_SCAN_CODE(row, col, row_shift)	(((row) << (row_shift)) + (col))

/**
 * struct matrix_keymap_data - keymap for matrix keyboards
 * @keymap: pointer to array of uint32 values encoded with KEY() macro
 *	representing keymap
 * @keymap_size: number of entries (initialized) in this keymap
 *
 * This structure is supposed to be used by platform code to supply
 * keymaps to drivers that implement matrix-like keypads/keyboards.
 */
struct matrix_keymap_data {
	const uint32_t *keymap;
	unsigned int	keymap_size;
};

/**
 * struct matrix_keypad_platform_data - platform-dependent keypad data
 * @keymap_data: pointer to &matrix_keymap_data
 * @row_gpios: pointer to array of gpio numbers representing rows
 * @col_gpios: pointer to array of gpio numbers reporesenting colums
 * @num_row_gpios: actual number of row gpios used by device
 * @num_col_gpios: actual number of col gpios used by device
 * @col_scan_delay_us: delay, measured in microseconds, that is
 *	needed before we can keypad after activating column gpio
 * @debounce_ms: debounce interval in milliseconds
 * @clustered_irq: may be specified if interrupts of all row/column GPIOs
 *	are bundled to one single irq
 * @clustered_irq_flags: flags that are needed for the clustered irq
 * @active_low: gpio polarity
 * @wakeup: controls whether the device should be set up as wakeup
 *	source
 * @no_autorepeat: disable key autorepeat
 * @drive_inactive_cols: drive inactive columns during scan, rather than
 *	making them inputs.
 *
 * This structure represents platform-specific data that use used by
 * matrix_keypad driver to perform proper initialization.
 */
struct matrix_keypad_platform_data {
	const struct matrix_keymap_data *keymap_data;

const unsigned int *row_gpios;
	const unsigned int *col_gpios;

unsigned int	num_row_gpios;
	unsigned int	num_col_gpios;

unsigned int	col_scan_delay_us;

/* key debounce interval in milli-second */
	unsigned int	debounce_ms;

unsigned int	clustered_irq;
	unsigned int	clustered_irq_flags;

bool		active_low;
	bool		wakeup;
	bool		no_autorepeat;
	bool		drive_inactive_cols;
};

int matrix_keypad_build_keymap(const struct matrix_keymap_data *keymap_data,
			       const char *keymap_name,
			       unsigned int rows, unsigned int cols,
			       unsigned short *keymap,
			       struct input_dev *input_dev);
int matrix_keypad_parse_properties(struct device *dev,
				   unsigned int *rows, unsigned int *cols);

#define matrix_keypad_parse_of_params matrix_keypad_parse_properties

#endif /* _MATRIX_KEYPAD_H */

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