forked from mirrors/linux
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
95 lines
2 KiB
C
95 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
#ifndef _LINUX_I8042_H
|
|
#define _LINUX_I8042_H
|
|
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* Status register bits.
|
|
*/
|
|
|
|
#define I8042_STR_PARITY 0x80
|
|
#define I8042_STR_TIMEOUT 0x40
|
|
#define I8042_STR_AUXDATA 0x20
|
|
#define I8042_STR_KEYLOCK 0x10
|
|
#define I8042_STR_CMDDAT 0x08
|
|
#define I8042_STR_MUXERR 0x04
|
|
#define I8042_STR_IBF 0x02
|
|
#define I8042_STR_OBF 0x01
|
|
|
|
/*
|
|
* Control register bits.
|
|
*/
|
|
|
|
#define I8042_CTR_KBDINT 0x01
|
|
#define I8042_CTR_AUXINT 0x02
|
|
#define I8042_CTR_IGNKEYLOCK 0x08
|
|
#define I8042_CTR_KBDDIS 0x10
|
|
#define I8042_CTR_AUXDIS 0x20
|
|
#define I8042_CTR_XLATE 0x40
|
|
|
|
struct serio;
|
|
|
|
#if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE)
|
|
|
|
void i8042_lock_chip(void);
|
|
void i8042_unlock_chip(void);
|
|
int i8042_command(unsigned char *param, int command);
|
|
int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
|
|
struct serio *serio));
|
|
int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
|
|
struct serio *serio));
|
|
|
|
#else
|
|
|
|
static inline void i8042_lock_chip(void)
|
|
{
|
|
}
|
|
|
|
static inline void i8042_unlock_chip(void)
|
|
{
|
|
}
|
|
|
|
static inline int i8042_command(unsigned char *param, int command)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
|
|
struct serio *serio))
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
|
|
struct serio *serio))
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|