imx_keypad.c File Reference

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/input/matrix_keypad.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/timer.h>

Go to the source code of this file.

Data Structures
struct	imx_keypad

Macros
#define	KPCR   0x00 /* Keypad Control Register */
#define	KPSR   0x02 /* Keypad Status Register */
#define	KBD_STAT_KPKD   (0x1 << 0) /* Key Press Interrupt Status bit (w1c) */
#define	KBD_STAT_KPKR   (0x1 << 1) /* Key Release Interrupt Status bit (w1c) */
#define	KBD_STAT_KDSC   (0x1 << 2) /* Key Depress Synch Chain Status bit (w1c)*/
#define	KBD_STAT_KRSS   (0x1 << 3) /* Key Release Synch Status bit (w1c)*/
#define	KBD_STAT_KDIE   (0x1 << 8) /* Key Depress Interrupt Enable Status bit */
#define	KBD_STAT_KRIE   (0x1 << 9) /* Key Release Interrupt Enable */
#define	KBD_STAT_KPPEN   (0x1 << 10) /* Keypad Clock Enable */
#define	KDDR   0x04 /* Keypad Data Direction Register */
#define	KPDR   0x06 /* Keypad Data Register */
#define	MAX_MATRIX_KEY_ROWS   8
#define	MAX_MATRIX_KEY_COLS   8
#define	MATRIX_ROW_SHIFT   3
#define	MAX_MATRIX_KEY_NUM   (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)
#define	IMX_KEYPAD_SCANS_FOR_STABILITY   3

Functions
	module_platform_driver (imx_keypad_driver)
	MODULE_AUTHOR ("Alberto Panizzo <[email protected]>")
	MODULE_DESCRIPTION ("IMX Keypad Port Driver")
	MODULE_LICENSE ("GPL v2")
	MODULE_ALIAS ("platform:imx-keypad")

Macro Definition Documentation

#define IMX_KEYPAD_SCANS_FOR_STABILITY   3

Definition at line 63 of file imx_keypad.c.

#define KBD_STAT_KDIE   (0x1 << 8) /* Key Depress Interrupt Enable Status bit */

Definition at line 37 of file imx_keypad.c.

#define KBD_STAT_KDSC   (0x1 << 2) /* Key Depress Synch Chain Status bit (w1c)*/

Definition at line 35 of file imx_keypad.c.

#define KBD_STAT_KPKD   (0x1 << 0) /* Key Press Interrupt Status bit (w1c) */

Definition at line 33 of file imx_keypad.c.

#define KBD_STAT_KPKR   (0x1 << 1) /* Key Release Interrupt Status bit (w1c) */

Definition at line 34 of file imx_keypad.c.

#define KBD_STAT_KPPEN   (0x1 << 10) /* Keypad Clock Enable */

Definition at line 39 of file imx_keypad.c.

#define KBD_STAT_KRIE   (0x1 << 9) /* Key Release Interrupt Enable */

Definition at line 38 of file imx_keypad.c.

#define KBD_STAT_KRSS   (0x1 << 3) /* Key Release Synch Status bit (w1c)*/

Definition at line 36 of file imx_keypad.c.

#define KDDR   0x04 /* Keypad Data Direction Register */

Definition at line 41 of file imx_keypad.c.

#define KPCR   0x00 /* Keypad Control Register */

Definition at line 30 of file imx_keypad.c.

#define KPDR   0x06 /* Keypad Data Register */

Definition at line 42 of file imx_keypad.c.

#define KPSR   0x02 /* Keypad Status Register */

Definition at line 32 of file imx_keypad.c.

#define MATRIX_ROW_SHIFT   3

Definition at line 46 of file imx_keypad.c.

#define MAX_MATRIX_KEY_COLS   8

Definition at line 45 of file imx_keypad.c.

#define MAX_MATRIX_KEY_NUM   (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)

Definition at line 48 of file imx_keypad.c.

#define MAX_MATRIX_KEY_ROWS   8

Definition at line 44 of file imx_keypad.c.

Function Documentation

MODULE_ALIAS

(

"platform:imx-keypad"

)

MODULE_AUTHOR

(

"Alberto Panizzo <[email protected]>"

)

MODULE_DESCRIPTION

(

"IMX Keypad Port Driver"

)

MODULE_LICENSE

(

"GPL v2"

)

module_platform_driver

(

imx_keypad_driver

)