diff options
Diffstat (limited to 'sys/dev/sound/midi/midisynth.h')
| -rw-r--r-- | sys/dev/sound/midi/midisynth.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/sound/midi/midisynth.h b/sys/dev/sound/midi/midisynth.h index d27e62b..db43354 100644 --- a/sys/dev/sound/midi/midisynth.h +++ b/sys/dev/sound/midi/midisynth.h @@ -67,6 +67,16 @@ typedef int (mdsy_volumemethod_t)(mididev_info *md, int mode); typedef int (mdsy_readraw_t)(mididev_info *md, u_char *buf, int len, int nonblock); typedef int (mdsy_writeraw_t)(mididev_info *md, u_char *buf, int len, int nonblock); +/* + * The order of mutex lock (from the first to the last) + * + * 1. sequencer flags, queues, timer and devlice list + * 2. midi synth voice and channel + * 3. midi synth status + * 4. generic midi flags and queues + * 5. midi device + */ + /* This is a midi synthesizer interface and state. */ struct _synthdev_info { mdsy_killnote_t *killnote; @@ -88,10 +98,13 @@ struct _synthdev_info { mdsy_readraw_t *readraw; mdsy_writeraw_t *writeraw; + /* Voice and channel */ + struct mtx vc_mtx; /* Mutex to protect voice and channel. */ struct voice_alloc_info alloc; /* Voice allocation. */ struct channel_info chn_info[16]; /* Channel information. */ - u_char prev_out_status; /* Previous status. */ + /* Status */ + struct mtx status_mtx; /* Mutex to protect status. */ int sysex_state; /* State of sysex transmission. */ }; typedef struct _synthdev_info synthdev_info; |
