Release 4.15 include/linux/libps2.h

#ifndef _LIBPS2_H

#define _LIBPS2_H

/*
 * Copyright (C) 1999-2002 Vojtech Pavlik
 * Copyright (C) 2004 Dmitry Torokhov
 *
 * 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.
 */



#define PS2_CMD_GETID		0x02f2

#define PS2_CMD_RESET_BAT	0x02ff


#define PS2_RET_BAT		0xaa

#define PS2_RET_ID		0x00

#define PS2_RET_ACK		0xfa

#define PS2_RET_NAK		0xfe

#define PS2_RET_ERR		0xfc


#define PS2_FLAG_ACK		1	
/* Waiting for ACK/NAK */

#define PS2_FLAG_CMD		2	
/* Waiting for command to finish */

#define PS2_FLAG_CMD1		4	
/* Waiting for the first byte of command response */

#define PS2_FLAG_WAITID		8	
/* Command execiting is GET ID */

#define PS2_FLAG_NAK		16	
/* Last transmission was NAKed */


struct ps2dev {
	
struct serio *serio;

	/* Ensures that only one command is executing at a time */
	
struct mutex cmd_mutex;

	/* Used to signal completion from interrupt handler */
	
wait_queue_head_t wait;

	
unsigned long flags;
	
unsigned char cmdbuf[8];
	
unsigned char cmdcnt;
	
unsigned char nak;
};

void ps2_init(struct ps2dev *ps2dev, struct serio *serio);
int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout);
void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout);
void ps2_begin_command(struct ps2dev *ps2dev);
void ps2_end_command(struct ps2dev *ps2dev);
int __ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command);
int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command);
int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data);
int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data);
void ps2_cmd_aborted(struct ps2dev *ps2dev);
int ps2_is_keyboard_id(char id);

#endif /* _LIBPS2_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Dmitry Torokhov
217
90.42%
5
55.56%
Tai-hwa Liang
17
7.08%
1
11.11%
Vojtech Pavlik
3
1.25%
1
11.11%
Arjan van de Ven
2
0.83%
1
11.11%
Kamal Mostafa
1
0.42%
1
11.11%
Total
240
100.00%
9
100.00%
Directory: include/linux

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