Commit 553a05b8 authored by Márton Németh's avatar Márton Németh Committed by Dmitry Torokhov
Browse files

Input: i8042 - export i8042_command() 



Export the i8042_command() function which manages the mutual
exclusion with the help of the i8042_lock spinlock. This allows
to access i8042 safely from other parts of the kernel.

Signed-off-by: default avatarMárton Németh <nm127@freemail.hu>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 82ba56c2

drivers/input/serio/i8042.c

+3 −1
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/err.h>

#include <linux/rcupdate.h>

#include <linux/platform_device.h>

#include <linux/i8042.h>



#include <asm/io.h>
@@ -208,7 +209,7 @@ static int __i8042_command(unsigned char *param, int command) 
	return 0;

}



static int i8042_command(unsigned char *param, int command)

int i8042_command(unsigned char *param, int command)

{

	unsigned long flags;

	int retval;
@@ -219,6 +220,7 @@ static int i8042_command(unsigned char *param, int command) 


	return retval;

}

EXPORT_SYMBOL(i8042_command);



/*

 * i8042_kbd_write() sends a byte out through the keyboard interface.

drivers/input/serio/i8042.h

+0 −22
Original line number Diff line number Diff line
@@ -60,28 +60,6 @@ 
#define I8042_CTR_AUXDIS	0x20

#define I8042_CTR_XLATE		0x40



/*

 * Commands.

 */



#define I8042_CMD_CTL_RCTR	0x0120

#define I8042_CMD_CTL_WCTR	0x1060

#define I8042_CMD_CTL_TEST	0x01aa



#define I8042_CMD_KBD_DISABLE	0x00ad

#define I8042_CMD_KBD_ENABLE	0x00ae

#define I8042_CMD_KBD_TEST	0x01ab

#define I8042_CMD_KBD_LOOP	0x11d2



#define I8042_CMD_AUX_DISABLE	0x00a7

#define I8042_CMD_AUX_ENABLE	0x00a8

#define I8042_CMD_AUX_TEST	0x01a9

#define I8042_CMD_AUX_SEND	0x10d4

#define I8042_CMD_AUX_LOOP	0x11d3



#define I8042_CMD_MUX_PFX	0x0090

#define I8042_CMD_MUX_SEND	0x1090



/*

 * Return codes.

 */

include/linux/i8042.h

0 → 100644
+35 −0
Original line number Diff line number Diff line 
#ifndef _LINUX_I8042_H

#define _LINUX_I8042_H



/*

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 as published by

 * the Free Software Foundation.

 */





/*

 * Standard commands.

 */



#define I8042_CMD_CTL_RCTR	0x0120

#define I8042_CMD_CTL_WCTR	0x1060

#define I8042_CMD_CTL_TEST	0x01aa



#define I8042_CMD_KBD_DISABLE	0x00ad

#define I8042_CMD_KBD_ENABLE	0x00ae

#define I8042_CMD_KBD_TEST	0x01ab

#define I8042_CMD_KBD_LOOP	0x11d2



#define I8042_CMD_AUX_DISABLE	0x00a7

#define I8042_CMD_AUX_ENABLE	0x00a8

#define I8042_CMD_AUX_TEST	0x01a9

#define I8042_CMD_AUX_SEND	0x10d4

#define I8042_CMD_AUX_LOOP	0x11d3



#define I8042_CMD_MUX_PFX	0x0090

#define I8042_CMD_MUX_SEND	0x1090



int i8042_command(unsigned char *param, int command);



#endif

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