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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __SOUND_SEQ_OSS_H
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#define __SOUND_SEQ_OSS_H
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/*
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* OSS compatible sequencer driver
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*
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* Copyright (C) 1998,99 Takashi Iwai
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*/
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#include <sound/asequencer.h>
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#include <sound/seq_kernel.h>
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/*
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* argument structure for synthesizer operations
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*/
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struct snd_seq_oss_arg {
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/* given by OSS sequencer */
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int app_index; /* application unique index */
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int file_mode; /* file mode - see below */
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int seq_mode; /* sequencer mode - see below */
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/* following must be initialized in open callback */
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struct snd_seq_addr addr; /* opened port address */
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void *private_data; /* private data for lowlevel drivers */
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/* note-on event passing mode: initially given by OSS seq,
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* but configurable by drivers - see below
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*/
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int event_passing;
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};
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/*
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* synthesizer operation callbacks
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*/
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struct snd_seq_oss_callback {
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struct module *owner;
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int (*open)(struct snd_seq_oss_arg *p, void *closure);
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int (*close)(struct snd_seq_oss_arg *p);
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int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg);
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int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count);
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int (*reset)(struct snd_seq_oss_arg *p);
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int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data);
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};
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/* flag: file_mode */
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#define SNDRV_SEQ_OSS_FILE_ACMODE 3
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#define SNDRV_SEQ_OSS_FILE_READ 1
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#define SNDRV_SEQ_OSS_FILE_WRITE 2
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#define SNDRV_SEQ_OSS_FILE_NONBLOCK 4
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/* flag: seq_mode */
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#define SNDRV_SEQ_OSS_MODE_SYNTH 0
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#define SNDRV_SEQ_OSS_MODE_MUSIC 1
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/* flag: event_passing */
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#define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */
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#define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */
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#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */
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/* default control rate: fixed */
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#define SNDRV_SEQ_OSS_CTRLRATE 100
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/* default max queue length: configurable by module option */
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#define SNDRV_SEQ_OSS_MAX_QLEN 1024
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/*
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* data pointer to snd_seq_register_device
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*/
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struct snd_seq_oss_reg {
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int type;
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int subtype;
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int nvoices;
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struct snd_seq_oss_callback oper;
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void *private_data;
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};
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/* device id */
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#define SNDRV_SEQ_DEV_ID_OSS "seq-oss"
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#endif /* __SOUND_SEQ_OSS_H */
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