1/* 2 * OSS compatible sequencer driver 3 * 4 * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21#ifndef __SEQ_OSS_DEVICE_H 22#define __SEQ_OSS_DEVICE_H 23 24#include <sound/driver.h> 25#include <linux/time.h> 26#include <linux/wait.h> 27#include <linux/slab.h> 28#include <linux/sched.h> 29#include <sound/core.h> 30#include <sound/seq_oss.h> 31#include <sound/rawmidi.h> 32#include <sound/seq_kernel.h> 33#include <sound/info.h> 34 35/* enable debug print */ 36#define SNDRV_SEQ_OSS_DEBUG 37 38/* max. applications */ 39#define SNDRV_SEQ_OSS_MAX_CLIENTS 16 40#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16 41#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32 42 43/* version */ 44#define SNDRV_SEQ_OSS_MAJOR_VERSION 0 45#define SNDRV_SEQ_OSS_MINOR_VERSION 1 46#define SNDRV_SEQ_OSS_TINY_VERSION 8 47#define SNDRV_SEQ_OSS_VERSION_STR "0.1.8" 48 49/* device and proc interface name */ 50#define SNDRV_SEQ_OSS_DEVNAME "seq_oss" 51#define SNDRV_SEQ_OSS_PROCNAME "oss" 52 53 54/* 55 * type definitions 56 */ 57 58typedef unsigned int reltime_t; 59typedef unsigned int abstime_t; 60 61 62/* 63 * synthesizer channel information 64 */ 65struct seq_oss_chinfo { 66 int note, vel; 67}; 68 69/* 70 * synthesizer information 71 */ 72struct seq_oss_synthinfo { 73 struct snd_seq_oss_arg arg; 74 struct seq_oss_chinfo *ch; 75 struct seq_oss_synth_sysex *sysex; 76 int nr_voices; 77 int opened; 78 int is_midi; 79 int midi_mapped; 80}; 81 82 83/* 84 * sequencer client information 85 */ 86 87struct seq_oss_devinfo { 88 89 int index; /* application index */ 90 int cseq; /* sequencer client number */ 91 int port; /* sequencer port number */ 92 int queue; /* sequencer queue number */ 93 94 struct snd_seq_addr addr; /* address of this device */ 95 96 int seq_mode; /* sequencer mode */ 97 int file_mode; /* file access */ 98 99 /* midi device table */ 100 int max_mididev; 101 102 /* synth device table */ 103 int max_synthdev; 104 struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; 105 int synth_opened; 106 107 /* output queue */ 108 struct seq_oss_writeq *writeq; 109 110 /* midi input queue */ 111 struct seq_oss_readq *readq; 112 113 /* timer */ 114 struct seq_oss_timer *timer; 115}; 116 117 118/* 119 * function prototypes 120 */ 121 122/* create/delete OSS sequencer client */ 123int snd_seq_oss_create_client(void); 124int snd_seq_oss_delete_client(void); 125 126/* device file interface */ 127int snd_seq_oss_open(struct file *file, int level); 128void snd_seq_oss_release(struct seq_oss_devinfo *dp); 129int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg); 130int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count); 131int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt); 132unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait); 133 134void snd_seq_oss_reset(struct seq_oss_devinfo *dp); 135void snd_seq_oss_drain_write(struct seq_oss_devinfo *dp); 136 137/* */ 138void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time); 139 140 141/* proc interface */ 142void snd_seq_oss_system_info_read(struct snd_info_buffer *buf); 143void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf); 144void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf); 145void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf); 146 147/* file mode macros */ 148#define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ) 149#define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE) 150#define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK) 151 152/* dispatch event */ 153static inline int 154snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop) 155{ 156 return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop); 157} 158 159/* ioctl */ 160static inline int 161snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg) 162{ 163 return snd_seq_kernel_client_ctl(dp->cseq, type, arg); 164} 165 166/* fill the addresses in header */ 167static inline void 168snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, 169 int dest_client, int dest_port) 170{ 171 ev->queue = dp->queue; 172 ev->source = dp->addr; 173 ev->dest.client = dest_client; 174 ev->dest.port = dest_port; 175} 176 177 178/* misc. functions for proc interface */ 179char *enabled_str(int bool); 180 181 182/* for debug */ 183#ifdef SNDRV_SEQ_OSS_DEBUG 184extern int seq_oss_debug; 185#define debug_printk(x) do { if (seq_oss_debug > 0) snd_printk x; } while (0) 186#else 187#define debug_printk(x) /**/ 188#endif 189 190#endif /* __SEQ_OSS_DEVICE_H */ 191