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: Márton Németh <nm127@freemail.hu>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/serio/i8042.c

@@ -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

@@ -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

@@ -0,0 +1,35 @@
+#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