/*
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* OSS compatible sequencer driver
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*
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* Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __SEQ_OSS_DEVICE_H
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#define __SEQ_OSS_DEVICE_H
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#include <linux/time.h>
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#include <linux/wait.h>
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#include <linux/slab.h>
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#include <linux/sched/signal.h>
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#include <sound/core.h>
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#include <sound/seq_oss.h>
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#include <sound/rawmidi.h>
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#include <sound/seq_kernel.h>
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#include <sound/info.h>
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/* max. applications */
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#define SNDRV_SEQ_OSS_MAX_CLIENTS 16
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#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16
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#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32
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/* version */
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#define SNDRV_SEQ_OSS_MAJOR_VERSION 0
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#define SNDRV_SEQ_OSS_MINOR_VERSION 1
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#define SNDRV_SEQ_OSS_TINY_VERSION 8
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#define SNDRV_SEQ_OSS_VERSION_STR "0.1.8"
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/* device and proc interface name */
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#define SNDRV_SEQ_OSS_PROCNAME "oss"
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/*
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* type definitions
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*/
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typedef unsigned int reltime_t;
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typedef unsigned int abstime_t;
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/*
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* synthesizer channel information
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*/
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struct seq_oss_chinfo {
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int note, vel;
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};
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/*
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* synthesizer information
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*/
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struct seq_oss_synthinfo {
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struct snd_seq_oss_arg arg;
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struct seq_oss_chinfo *ch;
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struct seq_oss_synth_sysex *sysex;
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int nr_voices;
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int opened;
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int is_midi;
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int midi_mapped;
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};
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/*
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* sequencer client information
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*/
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struct seq_oss_devinfo {
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int index; /* application index */
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int cseq; /* sequencer client number */
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int port; /* sequencer port number */
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int queue; /* sequencer queue number */
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struct snd_seq_addr addr; /* address of this device */
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int seq_mode; /* sequencer mode */
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int file_mode; /* file access */
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/* midi device table */
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int max_mididev;
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/* synth device table */
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int max_synthdev;
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struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
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int synth_opened;
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/* output queue */
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struct seq_oss_writeq *writeq;
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/* midi input queue */
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struct seq_oss_readq *readq;
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/* timer */
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struct seq_oss_timer *timer;
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};
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/*
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* function prototypes
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*/
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/* create/delete OSS sequencer client */
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int snd_seq_oss_create_client(void);
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int snd_seq_oss_delete_client(void);
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/* device file interface */
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int snd_seq_oss_open(struct file *file, int level);
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void snd_seq_oss_release(struct seq_oss_devinfo *dp);
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int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg);
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int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count);
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int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt);
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__poll_t snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait);
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void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
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/* */
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void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time);
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/* proc interface */
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void snd_seq_oss_system_info_read(struct snd_info_buffer *buf);
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void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf);
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void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf);
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void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf);
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/* file mode macros */
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#define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ)
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#define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE)
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#define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK)
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/* dispatch event */
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static inline int
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snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop)
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{
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return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
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}
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/* ioctl */
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static inline int
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snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg)
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{
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return snd_seq_kernel_client_ctl(dp->cseq, type, arg);
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}
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/* fill the addresses in header */
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static inline void
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snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev,
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int dest_client, int dest_port)
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{
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ev->queue = dp->queue;
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ev->source = dp->addr;
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ev->dest.client = dest_client;
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ev->dest.port = dest_port;
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}
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/* misc. functions for proc interface */
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char *enabled_str(int bool);
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#endif /* __SEQ_OSS_DEVICE_H */
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