--- /dev/null
+/*
+ * OSS compatible sequencer driver
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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
+ */
+
+#ifndef __SEQ_OSS_DEVICE_H
+#define __SEQ_OSS_DEVICE_H
+
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <sound/core.h>
+#include <sound/seq_oss.h>
+#include <sound/rawmidi.h>
+#include <sound/seq_kernel.h>
+#include <sound/info.h>
+
+/* max. applications */
+#define SNDRV_SEQ_OSS_MAX_CLIENTS 16
+#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16
+#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32
+
+/* version */
+#define SNDRV_SEQ_OSS_MAJOR_VERSION 0
+#define SNDRV_SEQ_OSS_MINOR_VERSION 1
+#define SNDRV_SEQ_OSS_TINY_VERSION 8
+#define SNDRV_SEQ_OSS_VERSION_STR "0.1.8"
+
+/* device and proc interface name */
+#define SNDRV_SEQ_OSS_PROCNAME "oss"
+
+
+/*
+ * type definitions
+ */
+
+typedef unsigned int reltime_t;
+typedef unsigned int abstime_t;
+
+
+/*
+ * synthesizer channel information
+ */
+struct seq_oss_chinfo {
+ int note, vel;
+};
+
+/*
+ * synthesizer information
+ */
+struct seq_oss_synthinfo {
+ struct snd_seq_oss_arg arg;
+ struct seq_oss_chinfo *ch;
+ struct seq_oss_synth_sysex *sysex;
+ int nr_voices;
+ int opened;
+ int is_midi;
+ int midi_mapped;
+};
+
+
+/*
+ * sequencer client information
+ */
+
+struct seq_oss_devinfo {
+
+ int index; /* application index */
+ int cseq; /* sequencer client number */
+ int port; /* sequencer port number */
+ int queue; /* sequencer queue number */
+
+ struct snd_seq_addr addr; /* address of this device */
+
+ int seq_mode; /* sequencer mode */
+ int file_mode; /* file access */
+
+ /* midi device table */
+ int max_mididev;
+
+ /* synth device table */
+ int max_synthdev;
+ struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
+ int synth_opened;
+
+ /* output queue */
+ struct seq_oss_writeq *writeq;
+
+ /* midi input queue */
+ struct seq_oss_readq *readq;
+
+ /* timer */
+ struct seq_oss_timer *timer;
+};
+
+
+/*
+ * function prototypes
+ */
+
+/* create/delete OSS sequencer client */
+int snd_seq_oss_create_client(void);
+int snd_seq_oss_delete_client(void);
+
+/* device file interface */
+int snd_seq_oss_open(struct file *file, int level);
+void snd_seq_oss_release(struct seq_oss_devinfo *dp);
+int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg);
+int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count);
+int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt);
+unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait);
+
+void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
+void snd_seq_oss_drain_write(struct seq_oss_devinfo *dp);
+
+/* */
+void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time);
+
+
+/* proc interface */
+void snd_seq_oss_system_info_read(struct snd_info_buffer *buf);
+void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf);
+void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf);
+void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf);
+
+/* file mode macros */
+#define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ)
+#define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE)
+#define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK)
+
+/* dispatch event */
+static inline int
+snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop)
+{
+ return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
+}
+
+/* ioctl */
+static inline int
+snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg)
+{
+ return snd_seq_kernel_client_ctl(dp->cseq, type, arg);
+}
+
+/* fill the addresses in header */
+static inline void
+snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev,
+ int dest_client, int dest_port)
+{
+ ev->queue = dp->queue;
+ ev->source = dp->addr;
+ ev->dest.client = dest_client;
+ ev->dest.port = dest_port;
+}
+
+
+/* misc. functions for proc interface */
+char *enabled_str(int bool);
+
+#endif /* __SEQ_OSS_DEVICE_H */
Code Review / kvmfornfv.git / blobdiff