/* -*- mode:C++; indent-tabs-mode:t; tab-width:8; c-basic-offset: 8 -*- */

/*

 *

 * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>

 * Copyright (c) 2004-2007 by Rui Nuno Capela <rncbc@rncbc.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

 */

#include "Cus428State.h"

// MMC Command Codes.

#define MMC_CMD_STOP                    0x01

#define MMC_CMD_PLAY                    0x02

#define MMC_CMD_DEFERRED_PLAY           0x03

#define MMC_CMD_FAST_FORWARD            0x04

#define MMC_CMD_REWIND                  0x05

#define MMC_CMD_RECORD_STROBE           0x06

#define MMC_CMD_RECORD_EXIT             0x07

#define MMC_CMD_RECORD_PAUSE            0x08

#define MMC_CMD_PAUSE                   0x09

#define MMC_CMD_EJECT                   0x0a

#define MMC_CMD_CHASE                   0x0b

#define MMC_CMD_COMMAND_ERROR_RESET     0x0c

#define MMC_CMD_MMC_RESET               0x0d

#define MMC_CMD_JOG_START               0x20

#define MMC_CMD_JOG_STOP                0x21

#define MMC_CMD_WRITE                   0x40

#define MMC_CMD_MASKED_WRITE            0x41

#define MMC_CMD_READ                    0x42

#define MMC_CMD_UPDATE                  0x43

#define MMC_CMD_LOCATE                  0x44

#define MMC_CMD_VARIABLE_PLAY           0x45

#define MMC_CMD_SEARCH                  0x46

#define MMC_CMD_SHUTTLE                 0x47

#define MMC_CMD_STEP                    0x48

#define MMC_CMD_ASSIGN_SYSTEM_MASTER    0x49

#define MMC_CMD_GENERATOR_COMMAND       0x4a

#define MMC_CMD_MTC_COMMAND             0x4b

#define MMC_CMD_MOVE                    0x4c

#define MMC_CMD_ADD                     0x4d

#define MMC_CMD_SUBTRACT                0x4e

#define MMC_CMD_DROP_FRAME_ADJUST       0x4f

#define MMC_CMD_PROCEDURE               0x50

#define MMC_CMD_EVENT                   0x51

#define MMC_CMD_GROUP                   0x52

#define MMC_CMD_COMMAND_SEGMENT         0x53

#define MMC_CMD_DEFERRED_VARIABLE_PLAY  0x54

#define MMC_CMD_RECORD_STROBE_VARIABLE  0x55

#define MMC_CMD_WAIT                    0x7c

#define MMC_CMD_RESUME                  0x7f

// Available MMC Masked Write sub-commands (information fields).

#define MMC_CIF_TRACK_RECORD            0x4f

#define MMC_CIF_TRACK_MUTE              0x62

#define MMC_CIF_TRACK_SOLO              0x66 // Custom-implementation ;)

class Cus428Midi {

public:

	Cus428Midi():

		Seq(0){}

	int CreatePorts(){

		int Err;

		if (0 <= (Err = snd_seq_open(&Seq, "default", SND_SEQ_OPEN_DUPLEX, SND_SEQ_NONBLOCK))) {

			snd_seq_set_client_name(Seq, "US-428");

			Err = snd_seq_create_simple_port(Seq, "Controls",

							 SND_SEQ_PORT_CAP_READ

							 |SND_SEQ_PORT_CAP_WRITE

							 |SND_SEQ_PORT_CAP_SUBS_READ

							 |SND_SEQ_PORT_CAP_SUBS_WRITE,

							 SND_SEQ_PORT_TYPE_MIDI_GENERIC);

			if (Err >= 0) {

				Port = Err;

				snd_seq_ev_clear(&Ev;;

				snd_seq_ev_set_direct(&Ev;;

				snd_seq_ev_set_source(&Ev, Port);

				snd_seq_ev_set_subs(&Ev;;

			}

		}

		return Err;

	}

	int SendMidiControl(char Channel, char Param, char Val){

		snd_seq_ev_set_controller(&Ev, Channel, Param, Val & 0x7F);

		SubMitEvent();

		return 0;

	}

	int SendMidiNote(char Channel, char Note, char Val){

		if (!Val)

			snd_seq_ev_set_noteoff(&Ev, Channel, Note, Val & 0x7F);

		else

			snd_seq_ev_set_noteon(&Ev, Channel, Note, Val & 0x7F);

		SubMitEvent();

		return 0;

	}

	int SendMidiControl(char Channel, Cus428State::eKnobs K, bool Down){

		return SendMidiControl(Channel, KnobParam[K - Cus428State::eK_RECORD], Down ? 0x7F : 0);

	}

	// To parse and dispatch input MIDI events.

	void ProcessMidiEvents();

	// Send MMC command.

	void SendMmcCommand(unsigned char MmcCmd, unsigned char *MmcData = 0, unsigned char MmcLen = 0);

	// Made public for friendliness.

	snd_seq_t *Seq;

private:

	int Port;

	snd_seq_event_t Ev;

	int SubMitEvent(){

		snd_seq_event_output(Seq, &Ev;;

		snd_seq_drain_output(Seq);

		return 0;

	}

	static char KnobParam[];

};

extern Cus428Midi Midi;