| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556 |
- #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 */
|
