1 #ifndef __SOUND_SEQ_VIRMIDI_H 2 #define __SOUND_SEQ_VIRMIDI_H 3 4 /* 5 * Virtual Raw MIDI client on Sequencer 6 * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>, 7 * Jaroslav Kysela <perex@suse.cz> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 */ 24 25 #include "rawmidi.h" 26 #include "seq_midi_event.h" 27 28 typedef struct _snd_virmidi_dev snd_virmidi_dev_t; 29 30 /* 31 * device file instance: 32 * This instance is created at each time the midi device file is 33 * opened. Each instance has its own input buffer and MIDI parser 34 * (buffer), and is associated with the device instance. 35 */ 36 typedef struct _snd_virmidi { 37 struct list_head list; 38 int seq_mode; 39 int client; 40 int port; 41 unsigned int trigger: 1; 42 snd_midi_event_t *parser; 43 snd_seq_event_t event; 44 snd_virmidi_dev_t *rdev; 45 snd_rawmidi_substream_t *substream; 46 } snd_virmidi_t; 47 48 #define SNDRV_VIRMIDI_SUBSCRIBE (1<<0) 49 #define SNDRV_VIRMIDI_USE (1<<1) 50 51 /* 52 * device record: 53 * Each virtual midi device has one device instance. It contains 54 * common information and the linked-list of opened files, 55 */ 56 struct _snd_virmidi_dev { 57 snd_card_t *card; /* associated card */ 58 snd_rawmidi_t *rmidi; /* rawmidi device */ 59 int seq_mode; /* SNDRV_VIRMIDI_XXX */ 60 int device; /* sequencer device */ 61 int client; /* created/attached client */ 62 int port; /* created/attached port */ 63 unsigned int flags; /* SNDRV_VIRMIDI_* */ 64 rwlock_t filelist_lock; 65 struct list_head filelist; 66 }; 67 68 /* sequencer mode: 69 * ATTACH = input/output events from midi device are routed to the 70 * attached sequencer port. sequencer port is not created 71 * by virmidi itself. 72 * the input to rawmidi must be processed by passing the 73 * incoming events via snd_virmidi_receive() 74 * DISPATCH = input/output events are routed to subscribers. 75 * sequencer port is created in virmidi. 76 */ 77 #define SNDRV_VIRMIDI_SEQ_NONE 0 78 #define SNDRV_VIRMIDI_SEQ_ATTACH 1 79 #define SNDRV_VIRMIDI_SEQ_DISPATCH 2 80 81 int snd_virmidi_new(snd_card_t *card, int device, snd_rawmidi_t **rrmidi); 82 int snd_virmidi_receive(snd_rawmidi_t *rmidi, snd_seq_event_t *ev); 83 84 #endif /* __SOUND_SEQ_VIRMIDI */ 85