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ca_midi.h

/* 
 *  Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de>
 *  Creative Audio MIDI, for the CA0106 Driver
 *  Version: 0.0.1
 *
 *  Changelog:
 *    See ca_midi.c
 *
 *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include<linux/spinlock.h>
#include<sound/rawmidi.h>
#include<sound/mpu401.h>

#define CA_MIDI_MODE_INPUT    MPU401_MODE_INPUT
#define CA_MIDI_MODE_OUTPUT   MPU401_MODE_OUTPUT

struct snd_ca_midi {

      struct snd_rawmidi *rmidi;
      struct snd_rawmidi_substream *substream_input;
      struct snd_rawmidi_substream *substream_output;

      void *dev_id;

      spinlock_t input_lock;
      spinlock_t output_lock;
      spinlock_t open_lock;

      unsigned int channel;

      unsigned int midi_mode;
      int port;
      int tx_enable, rx_enable;
      int ipr_tx, ipr_rx;            
      
      int input_avail, output_ready;
      int ack, reset, enter_uart;

      void (*interrupt)(struct snd_ca_midi *midi, unsigned int status);
      void (*interrupt_enable)(struct snd_ca_midi *midi, int intr);
      void (*interrupt_disable)(struct snd_ca_midi *midi, int intr);

      unsigned char (*read)(struct snd_ca_midi *midi, int idx);
      void (*write)(struct snd_ca_midi *midi, int data, int idx);

      /* get info from dev_id */
      struct snd_card *(*get_dev_id_card)(void *dev_id);
      int (*get_dev_id_port)(void *dev_id);
};

int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name);

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