cregit-Linux how code gets into the kernel

Release 4.12 include/linux/libps2.h

Directory: include/linux
#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

Dmitry Torokhov21790.42%555.56%
Tai-hwa Liang177.08%111.11%
Vojtech Pavlik31.25%111.11%
Arjan van de Ven20.83%111.11%
Kamal Mostafa10.42%111.11%
Directory: include/linux
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.