/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OSS compatible sequencer driver * * seq_oss_event.h - OSS event queue record * * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> */ #ifndef __SEQ_OSS_EVENT_H #define __SEQ_OSS_EVENT_H #include "seq_oss_device.h" #define SHORT_EVENT_SIZE 4 #define LONG_EVENT_SIZE 8 /* short event (4bytes) */ struct evrec_short { unsigned char code; unsigned char parm1; unsigned char dev; unsigned char parm2; }; /* short note events (4bytes) */ struct evrec_note { unsigned char code; unsigned char chn; unsigned char note; unsigned char vel; }; /* long timer events (8bytes) */ struct evrec_timer { unsigned char code; unsigned char cmd; unsigned char dummy1, dummy2; unsigned int time; }; /* long extended events (8bytes) */ struct evrec_extended { unsigned char code; unsigned char cmd; unsigned char dev; unsigned char chn; unsigned char p1, p2, p3, p4; }; /* long channel events (8bytes) */ struct evrec_long { unsigned char code; unsigned char dev; unsigned char cmd; unsigned char chn; unsigned char p1, p2; unsigned short val; }; /* channel voice events (8bytes) */ struct evrec_voice { unsigned char code; unsigned char dev; unsigned char cmd; unsigned char chn; unsigned char note, parm; unsigned short dummy; }; /* sysex events (8bytes) */ struct evrec_sysex { unsigned char code; unsigned char dev; unsigned char buf[6]; }; /* event record */ union evrec { struct evrec_short s; struct evrec_note n; struct evrec_long l; struct evrec_voice v; struct evrec_timer t; struct evrec_extended e; struct evrec_sysex x; unsigned int echo; unsigned char c[LONG_EVENT_SIZE]; }; #define ev_is_long(ev) ((ev)->s.code >= 128) #define ev_length(ev) ((ev)->s.code >= 128 ? LONG_EVENT_SIZE : SHORT_EVENT_SIZE) int snd_seq_oss_process_event(struct seq_oss_devinfo *dp, union evrec *q, struct snd_seq_event *ev); int snd_seq_oss_process_timer_event(struct seq_oss_timer *rec, union evrec *q); int snd_seq_oss_event_input(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop); #endif /* __SEQ_OSS_EVENT_H */