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1da177e4 LT |
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 | ||
1da177e4 LT |
24 | #include <linux/time.h> |
25 | #include <linux/wait.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/sched.h> | |
28 | #include <sound/core.h> | |
29 | #include <sound/seq_oss.h> | |
30 | #include <sound/rawmidi.h> | |
31 | #include <sound/seq_kernel.h> | |
32 | #include <sound/info.h> | |
33 | ||
34 | /* enable debug print */ | |
35 | #define SNDRV_SEQ_OSS_DEBUG | |
36 | ||
37 | /* max. applications */ | |
38 | #define SNDRV_SEQ_OSS_MAX_CLIENTS 16 | |
39 | #define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16 | |
40 | #define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32 | |
41 | ||
42 | /* version */ | |
43 | #define SNDRV_SEQ_OSS_MAJOR_VERSION 0 | |
44 | #define SNDRV_SEQ_OSS_MINOR_VERSION 1 | |
45 | #define SNDRV_SEQ_OSS_TINY_VERSION 8 | |
46 | #define SNDRV_SEQ_OSS_VERSION_STR "0.1.8" | |
47 | ||
48 | /* device and proc interface name */ | |
49 | #define SNDRV_SEQ_OSS_DEVNAME "seq_oss" | |
50 | #define SNDRV_SEQ_OSS_PROCNAME "oss" | |
51 | ||
52 | ||
53 | /* | |
54 | * type definitions | |
55 | */ | |
56 | ||
1da177e4 LT |
57 | typedef unsigned int reltime_t; |
58 | typedef unsigned int abstime_t; | |
1da177e4 LT |
59 | |
60 | ||
61 | /* | |
62 | * synthesizer channel information | |
63 | */ | |
080dece3 | 64 | struct seq_oss_chinfo { |
1da177e4 LT |
65 | int note, vel; |
66 | }; | |
67 | ||
68 | /* | |
69 | * synthesizer information | |
70 | */ | |
080dece3 TI |
71 | struct seq_oss_synthinfo { |
72 | struct snd_seq_oss_arg arg; | |
73 | struct seq_oss_chinfo *ch; | |
74 | struct seq_oss_synth_sysex *sysex; | |
1da177e4 LT |
75 | int nr_voices; |
76 | int opened; | |
77 | int is_midi; | |
78 | int midi_mapped; | |
79 | }; | |
80 | ||
81 | ||
82 | /* | |
83 | * sequencer client information | |
84 | */ | |
85 | ||
080dece3 | 86 | struct seq_oss_devinfo { |
1da177e4 LT |
87 | |
88 | int index; /* application index */ | |
89 | int cseq; /* sequencer client number */ | |
90 | int port; /* sequencer port number */ | |
91 | int queue; /* sequencer queue number */ | |
92 | ||
080dece3 | 93 | struct snd_seq_addr addr; /* address of this device */ |
1da177e4 LT |
94 | |
95 | int seq_mode; /* sequencer mode */ | |
96 | int file_mode; /* file access */ | |
97 | ||
98 | /* midi device table */ | |
99 | int max_mididev; | |
100 | ||
101 | /* synth device table */ | |
102 | int max_synthdev; | |
080dece3 | 103 | struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; |
1da177e4 LT |
104 | int synth_opened; |
105 | ||
106 | /* output queue */ | |
080dece3 | 107 | struct seq_oss_writeq *writeq; |
1da177e4 LT |
108 | |
109 | /* midi input queue */ | |
080dece3 | 110 | struct seq_oss_readq *readq; |
1da177e4 LT |
111 | |
112 | /* timer */ | |
080dece3 | 113 | struct seq_oss_timer *timer; |
1da177e4 LT |
114 | }; |
115 | ||
116 | ||
117 | /* | |
118 | * function prototypes | |
119 | */ | |
120 | ||
121 | /* create/delete OSS sequencer client */ | |
122 | int snd_seq_oss_create_client(void); | |
123 | int snd_seq_oss_delete_client(void); | |
124 | ||
125 | /* device file interface */ | |
126 | int snd_seq_oss_open(struct file *file, int level); | |
080dece3 TI |
127 | void snd_seq_oss_release(struct seq_oss_devinfo *dp); |
128 | int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg); | |
129 | int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count); | |
130 | int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt); | |
131 | unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait); | |
1da177e4 | 132 | |
080dece3 | 133 | void snd_seq_oss_reset(struct seq_oss_devinfo *dp); |
1da177e4 LT |
134 | |
135 | /* */ | |
080dece3 | 136 | void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time); |
1da177e4 LT |
137 | |
138 | ||
139 | /* proc interface */ | |
080dece3 TI |
140 | void snd_seq_oss_system_info_read(struct snd_info_buffer *buf); |
141 | void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf); | |
142 | void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf); | |
143 | void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf); | |
1da177e4 LT |
144 | |
145 | /* file mode macros */ | |
146 | #define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ) | |
147 | #define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE) | |
148 | #define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK) | |
149 | ||
150 | /* dispatch event */ | |
77933d72 | 151 | static inline int |
080dece3 | 152 | snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop) |
1da177e4 LT |
153 | { |
154 | return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop); | |
155 | } | |
156 | ||
157 | /* ioctl */ | |
77933d72 | 158 | static inline int |
080dece3 | 159 | snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg) |
1da177e4 LT |
160 | { |
161 | return snd_seq_kernel_client_ctl(dp->cseq, type, arg); | |
162 | } | |
163 | ||
164 | /* fill the addresses in header */ | |
77933d72 | 165 | static inline void |
080dece3 | 166 | snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, |
1da177e4 LT |
167 | int dest_client, int dest_port) |
168 | { | |
169 | ev->queue = dp->queue; | |
170 | ev->source = dp->addr; | |
171 | ev->dest.client = dest_client; | |
172 | ev->dest.port = dest_port; | |
173 | } | |
174 | ||
175 | ||
176 | /* misc. functions for proc interface */ | |
177 | char *enabled_str(int bool); | |
178 | ||
179 | ||
180 | /* for debug */ | |
181 | #ifdef SNDRV_SEQ_OSS_DEBUG | |
182 | extern int seq_oss_debug; | |
006de267 | 183 | #define debug_printk(x) do { if (seq_oss_debug > 0) snd_printd x; } while (0) |
1da177e4 LT |
184 | #else |
185 | #define debug_printk(x) /**/ | |
186 | #endif | |
187 | ||
188 | #endif /* __SEQ_OSS_DEVICE_H */ |