/*
* mediactrl.c -- Jog Shuttle device support
* Copyright (C) 2001-2007 Dan Dennedy <dan@dennedy.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef _MEDIA_CTRL_H
#define _MEDIA_CTRL_H

#include <sys/time.h>

// just to make the code more readable
#define KEY_RELEASE			0x00
#define KEY_PRESS			0x01

// not used yet
#define MEDIA_ST_ACTIVE	 		0x02
#define MEDIA_ST_INACTIVE	 	0x01

// media ctrl event types
#define MEDIA_CTRL_EVENT_NONE		0x00
#define MEDIA_CTRL_EVENT_KEY		0x01
#define MEDIA_CTRL_EVENT_JOG		0x02
#define MEDIA_CTRL_EVENT_SHUTTLE	0x03
#define MEDIA_CTRL_EVENT_STICK		0x04

// the disconnect event - not used yet
#define MEDIA_CTRL_DISCONNECT	 	0x01

#define MEDIA_CTRL_SHIFT	 	0x01

#define MEDIA_CTRL_PLAY	 		0x10
#define MEDIA_CTRL_PLAY_FWD	 	0x10
#define MEDIA_CTRL_REVERSE 		0x11
#define MEDIA_CTRL_PLAY_REV 		0x11
#define MEDIA_CTRL_STOP 		0x12
#define MEDIA_CTRL_PAUSE 		0x13
#define MEDIA_CTRL_NEXT 		0x14
#define MEDIA_CTRL_PREV 		0x15
#define MEDIA_CTRL_RECORD 		0x16
#define MEDIA_CTRL_FAST_FORWARD		0x17
#define MEDIA_CTRL_REWIND		0x18

#define MEDIA_CTRL_STICK_LEFT		0x20
#define MEDIA_CTRL_STICK_RIGHT		0x21
#define MEDIA_CTRL_STICK_UP		0x22
#define MEDIA_CTRL_STICK_DOWN		0x23

/* function keys, usually at top of device */
#define MEDIA_CTRL_F1			0x100
#define MEDIA_CTRL_F2			0x101
#define MEDIA_CTRL_F3			0x102
#define MEDIA_CTRL_F4			0x103
#define MEDIA_CTRL_F5			0x104
#define MEDIA_CTRL_F6			0x105
#define MEDIA_CTRL_F7			0x106
#define MEDIA_CTRL_F8			0x107
#define MEDIA_CTRL_F9			0x108
#define MEDIA_CTRL_F10			0x109
#define MEDIA_CTRL_F11			0x10a
#define MEDIA_CTRL_F12			0x10b
#define MEDIA_CTRL_F13			0x10c
#define MEDIA_CTRL_F14			0x10d
#define MEDIA_CTRL_F15			0x10e
#define MEDIA_CTRL_F16			0x10f

#define MEDIA_CTRL_B1			0x110
#define MEDIA_CTRL_B2			0x111
#define MEDIA_CTRL_B3			0x112
#define MEDIA_CTRL_B4			0x113
#define MEDIA_CTRL_B5			0x114
#define MEDIA_CTRL_B6			0x115
#define MEDIA_CTRL_B7			0x116
#define MEDIA_CTRL_B8			0x117
#define MEDIA_CTRL_B9			0x118
#define MEDIA_CTRL_B10			0x119
#define MEDIA_CTRL_B11			0x11a
#define MEDIA_CTRL_B12			0x11b
#define MEDIA_CTRL_B13			0x11c
#define MEDIA_CTRL_B14			0x11d
#define MEDIA_CTRL_B15			0x11e
#define MEDIA_CTRL_B16			0x11f

#ifdef __cplusplus
extern "C" {
#endif

struct media_ctrl_device;

struct media_ctrl_key {
	int key;  // internal keycode - do not use
	const char *name;
	int code; // eventcode
//	int action;
};

struct media_ctrl_event {
	struct timeval time;
	unsigned short type;
	unsigned short code;
	char *name;
	int value;
	unsigned short index;
};

struct media_ctrl {
	
	int fd;
	int eventno;
	
	int status;

	struct media_ctrl_device *device;

	long jogpos;
	int  shuttlepos;
	
	int lastval;
	int lastshu;
	
	int jogrel; // accumulate relative values if events come too fast
	unsigned long last_jog_time; // last jog event

};

struct media_ctrl_device {
	int vendor;
	int product;
	const char *name;
	struct media_ctrl_key *keys;
	void (*translate)(struct media_ctrl *ctrl, struct input_event *ev, struct media_ctrl_event *me);
};

void media_ctrl_open(struct media_ctrl *);
void media_ctrl_open_dev(struct media_ctrl *, const char *devname);
void media_ctrl_close(struct media_ctrl *);
void media_ctrl_read_event(struct media_ctrl *, struct media_ctrl_event *);

struct  media_ctrl_key *media_ctrl_get_keys(struct media_ctrl *);
int media_ctrl_get_keys_count(struct media_ctrl *);

#ifdef __cplusplus
}
#endif

#endif
