Release 4.17 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.
*/
#include <linux/bitops.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <linux/wait.h>
#define PS2_CMD_SETSCALE11 0x00e6
#define PS2_CMD_SETRES 0x10e8
#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 BIT(0)
/* Waiting for ACK/NAK */
#define PS2_FLAG_CMD BIT(1)
/* Waiting for a command to finish */
#define PS2_FLAG_CMD1 BIT(2)
/* Waiting for the first byte of command response */
#define PS2_FLAG_WAITID BIT(3)
/* Command executing is GET ID */
#define PS2_FLAG_NAK BIT(4)
/* Last transmission was NAKed */
#define PS2_FLAG_ACK_CMD BIT(5)
/* Waiting to ACK the command (first) byte */
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;
u8 cmdbuf[8];
u8 cmdcnt;
u8 nak;
};
void ps2_init(struct ps2dev *ps2dev, struct serio *serio);
int ps2_sendbyte(struct ps2dev *ps2dev, u8 byte, unsigned int timeout);
void ps2_drain(struct ps2dev *ps2dev, size_t maxbytes, unsigned int timeout);
void ps2_begin_command(struct ps2dev *ps2dev);
void ps2_end_command(struct ps2dev *ps2dev);
int __ps2_command(struct ps2dev *ps2dev, u8 *param, unsigned int command);
int ps2_command(struct ps2dev *ps2dev, u8 *param, unsigned int command);
int ps2_sliced_command(struct ps2dev *ps2dev, u8 command);
bool ps2_handle_ack(struct ps2dev *ps2dev, u8 data);
bool ps2_handle_response(struct ps2dev *ps2dev, u8 data);
void ps2_cmd_aborted(struct ps2dev *ps2dev);
bool ps2_is_keyboard_id(u8 id);
#endif /* _LIBPS2_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Torokhov | 252 | 92.31% | 9 | 69.23% |
| Tai-hwa Liang | 15 | 5.49% | 1 | 7.69% |
| Vojtech Pavlik | 3 | 1.10% | 1 | 7.69% |
| Arjan van de Ven | 2 | 0.73% | 1 | 7.69% |
| Kamal Mostafa | 1 | 0.37% | 1 | 7.69% |
| Total | 273 | 100.00% | 13 | 100.00% |
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