projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1da177e4 LT |
2 | #ifndef __SOUND_SEQ_VIRMIDI_H |
| 3 | #define __SOUND_SEQ_VIRMIDI_H | |
| 4 | ||
| 5 | /* | |
| 6 | * Virtual Raw MIDI client on Sequencer | |
| 7 | * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>, | |
| c1017a4c | 8 | * Jaroslav Kysela <perex@perex.cz> |
| 1da177e4 LT |
9 | */ |
| 10 | ||
| a1ce3928 DH |
11 | #include <sound/rawmidi.h> |
| 12 | #include <sound/seq_midi_event.h> | |
| 1da177e4 | 13 | |
| 1da177e4 LT |
14 | /* |
| 15 | * device file instance: | |
| 16 | * This instance is created at each time the midi device file is | |
| 17 | * opened. Each instance has its own input buffer and MIDI parser | |
| 18 | * (buffer), and is associated with the device instance. | |
| 19 | */ | |
| c7e0b5bf | 20 | struct snd_virmidi { |
| 1da177e4 LT |
21 | struct list_head list; |
| 22 | int seq_mode; | |
| 23 | int client; | |
| 24 | int port; | |
| 89b4ab21 | 25 | bool trigger; |
| c7e0b5bf TI |
26 | struct snd_midi_event *parser; |
| 27 | struct snd_seq_event event; | |
| 28 | struct snd_virmidi_dev *rdev; | |
| 29 | struct snd_rawmidi_substream *substream; | |
| f7debfe5 | 30 | struct work_struct output_work; |
| c7e0b5bf | 31 | }; |
| 1da177e4 LT |
32 | |
| 33 | #define SNDRV_VIRMIDI_SUBSCRIBE (1<<0) | |
| 34 | #define SNDRV_VIRMIDI_USE (1<<1) | |
| 35 | ||
| 36 | /* | |
| 37 | * device record: | |
| 38 | * Each virtual midi device has one device instance. It contains | |
| 39 | * common information and the linked-list of opened files, | |
| 40 | */ | |
| c7e0b5bf TI |
41 | struct snd_virmidi_dev { |
| 42 | struct snd_card *card; /* associated card */ | |
| 43 | struct snd_rawmidi *rmidi; /* rawmidi device */ | |
| 1da177e4 LT |
44 | int seq_mode; /* SNDRV_VIRMIDI_XXX */ |
| 45 | int device; /* sequencer device */ | |
| 46 | int client; /* created/attached client */ | |
| 47 | int port; /* created/attached port */ | |
| 48 | unsigned int flags; /* SNDRV_VIRMIDI_* */ | |
| 49 | rwlock_t filelist_lock; | |
| 5803b023 | 50 | struct rw_semaphore filelist_sem; |
| 1da177e4 LT |
51 | struct list_head filelist; |
| 52 | }; | |
| 53 | ||
| 54 | /* sequencer mode: | |
| 55 | * ATTACH = input/output events from midi device are routed to the | |
| 56 | * attached sequencer port. sequencer port is not created | |
| 57 | * by virmidi itself. | |
| 58 | * the input to rawmidi must be processed by passing the | |
| 59 | * incoming events via snd_virmidi_receive() | |
| 60 | * DISPATCH = input/output events are routed to subscribers. | |
| 61 | * sequencer port is created in virmidi. | |
| 62 | */ | |
| 63 | #define SNDRV_VIRMIDI_SEQ_NONE 0 | |
| 64 | #define SNDRV_VIRMIDI_SEQ_ATTACH 1 | |
| 65 | #define SNDRV_VIRMIDI_SEQ_DISPATCH 2 | |
| 66 | ||
| c7e0b5bf | 67 | int snd_virmidi_new(struct snd_card *card, int device, struct snd_rawmidi **rrmidi); |
| 1da177e4 LT |
68 | |
| 69 | #endif /* __SOUND_SEQ_VIRMIDI */ |