diff options
Diffstat (limited to 'sound/core/seq/oss/seq_oss_device.h')
| -rw-r--r-- | sound/core/seq/oss/seq_oss_device.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h new file mode 100644 index 000000000000..da23c4db8dd5 --- /dev/null +++ b/sound/core/seq/oss/seq_oss_device.h @@ -0,0 +1,198 @@ +/* + * 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 <sound/driver.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> + +/* enable debug print */ +#define SNDRV_SEQ_OSS_DEBUG + +/* 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_DEVNAME "seq_oss" +#define SNDRV_SEQ_OSS_PROCNAME "oss" + + +/* + * type definitions + */ + +typedef struct seq_oss_devinfo_t seq_oss_devinfo_t; +typedef struct seq_oss_writeq_t seq_oss_writeq_t; +typedef struct seq_oss_readq_t seq_oss_readq_t; +typedef struct seq_oss_timer_t seq_oss_timer_t; +typedef struct seq_oss_synthinfo_t seq_oss_synthinfo_t; +typedef struct seq_oss_synth_sysex_t seq_oss_synth_sysex_t; +typedef struct seq_oss_chinfo_t seq_oss_chinfo_t; +typedef unsigned int reltime_t; +typedef unsigned int abstime_t; +typedef union evrec_t evrec_t; + + +/* + * synthesizer channel information + */ +struct seq_oss_chinfo_t { + int note, vel; +}; + +/* + * synthesizer information + */ +struct seq_oss_synthinfo_t { + snd_seq_oss_arg_t arg; + seq_oss_chinfo_t *ch; + seq_oss_synth_sysex_t *sysex; + int nr_voices; + int opened; + int is_midi; + int midi_mapped; +}; + + +/* + * sequencer client information + */ + +struct seq_oss_devinfo_t { + + int index; /* application index */ + int cseq; /* sequencer client number */ + int port; /* sequencer port number */ + int queue; /* sequencer queue number */ + + snd_seq_addr_t 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; + seq_oss_synthinfo_t synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; + int synth_opened; + + /* output queue */ + seq_oss_writeq_t *writeq; + + /* midi input queue */ + seq_oss_readq_t *readq; + + /* timer */ + seq_oss_timer_t *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(seq_oss_devinfo_t *dp); +int snd_seq_oss_ioctl(seq_oss_devinfo_t *dp, unsigned int cmd, unsigned long arg); +int snd_seq_oss_read(seq_oss_devinfo_t *dev, char __user *buf, int count); +int snd_seq_oss_write(seq_oss_devinfo_t *dp, const char __user *buf, int count, struct file *opt); +unsigned int snd_seq_oss_poll(seq_oss_devinfo_t *dp, struct file *file, poll_table * wait); + +void snd_seq_oss_reset(seq_oss_devinfo_t *dp); +void snd_seq_oss_drain_write(seq_oss_devinfo_t *dp); + +/* */ +void snd_seq_oss_process_queue(seq_oss_devinfo_t *dp, abstime_t time); + + +/* proc interface */ +void snd_seq_oss_system_info_read(snd_info_buffer_t *buf); +void snd_seq_oss_midi_info_read(snd_info_buffer_t *buf); +void snd_seq_oss_synth_info_read(snd_info_buffer_t *buf); +void snd_seq_oss_readq_info_read(seq_oss_readq_t *q, snd_info_buffer_t *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 */ +inline static int +snd_seq_oss_dispatch(seq_oss_devinfo_t *dp, snd_seq_event_t *ev, int atomic, int hop) +{ + return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop); +} + +/* ioctl */ +inline static int +snd_seq_oss_control(seq_oss_devinfo_t *dp, unsigned int type, void *arg) +{ + return snd_seq_kernel_client_ctl(dp->cseq, type, arg); +} + +/* fill the addresses in header */ +inline static void +snd_seq_oss_fill_addr(seq_oss_devinfo_t *dp, snd_seq_event_t *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); + + +/* for debug */ +#ifdef SNDRV_SEQ_OSS_DEBUG +extern int seq_oss_debug; +#define debug_printk(x) do { if (seq_oss_debug > 0) snd_printk x; } while (0) +#else +#define debug_printk(x) /**/ +#endif + +#endif /* __SEQ_OSS_DEVICE_H */ |