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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * OSS compatible sequencer driver | |
4 | * | |
5 | * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> | |
1da177e4 LT |
6 | */ |
7 | ||
8 | #ifndef __SEQ_OSS_DEVICE_H | |
9 | #define __SEQ_OSS_DEVICE_H | |
10 | ||
1da177e4 LT |
11 | #include <linux/time.h> |
12 | #include <linux/wait.h> | |
13 | #include <linux/slab.h> | |
174cd4b1 | 14 | #include <linux/sched/signal.h> |
1da177e4 LT |
15 | #include <sound/core.h> |
16 | #include <sound/seq_oss.h> | |
17 | #include <sound/rawmidi.h> | |
18 | #include <sound/seq_kernel.h> | |
19 | #include <sound/info.h> | |
6b580f52 | 20 | #include "../seq_clientmgr.h" |
1da177e4 | 21 | |
1da177e4 LT |
22 | /* max. applications */ |
23 | #define SNDRV_SEQ_OSS_MAX_CLIENTS 16 | |
24 | #define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS 16 | |
25 | #define SNDRV_SEQ_OSS_MAX_MIDI_DEVS 32 | |
26 | ||
27 | /* version */ | |
28 | #define SNDRV_SEQ_OSS_MAJOR_VERSION 0 | |
29 | #define SNDRV_SEQ_OSS_MINOR_VERSION 1 | |
30 | #define SNDRV_SEQ_OSS_TINY_VERSION 8 | |
31 | #define SNDRV_SEQ_OSS_VERSION_STR "0.1.8" | |
32 | ||
33 | /* device and proc interface name */ | |
1da177e4 LT |
34 | #define SNDRV_SEQ_OSS_PROCNAME "oss" |
35 | ||
36 | ||
37 | /* | |
38 | * type definitions | |
39 | */ | |
40 | ||
1da177e4 LT |
41 | typedef unsigned int reltime_t; |
42 | typedef unsigned int abstime_t; | |
1da177e4 LT |
43 | |
44 | ||
45 | /* | |
46 | * synthesizer channel information | |
47 | */ | |
080dece3 | 48 | struct seq_oss_chinfo { |
1da177e4 LT |
49 | int note, vel; |
50 | }; | |
51 | ||
52 | /* | |
53 | * synthesizer information | |
54 | */ | |
080dece3 TI |
55 | struct seq_oss_synthinfo { |
56 | struct snd_seq_oss_arg arg; | |
57 | struct seq_oss_chinfo *ch; | |
58 | struct seq_oss_synth_sysex *sysex; | |
1da177e4 LT |
59 | int nr_voices; |
60 | int opened; | |
61 | int is_midi; | |
62 | int midi_mapped; | |
63 | }; | |
64 | ||
65 | ||
66 | /* | |
67 | * sequencer client information | |
68 | */ | |
69 | ||
080dece3 | 70 | struct seq_oss_devinfo { |
1da177e4 LT |
71 | |
72 | int index; /* application index */ | |
73 | int cseq; /* sequencer client number */ | |
74 | int port; /* sequencer port number */ | |
75 | int queue; /* sequencer queue number */ | |
76 | ||
080dece3 | 77 | struct snd_seq_addr addr; /* address of this device */ |
1da177e4 LT |
78 | |
79 | int seq_mode; /* sequencer mode */ | |
80 | int file_mode; /* file access */ | |
81 | ||
82 | /* midi device table */ | |
83 | int max_mididev; | |
84 | ||
85 | /* synth device table */ | |
86 | int max_synthdev; | |
080dece3 | 87 | struct seq_oss_synthinfo synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS]; |
1da177e4 LT |
88 | int synth_opened; |
89 | ||
90 | /* output queue */ | |
080dece3 | 91 | struct seq_oss_writeq *writeq; |
1da177e4 LT |
92 | |
93 | /* midi input queue */ | |
080dece3 | 94 | struct seq_oss_readq *readq; |
1da177e4 LT |
95 | |
96 | /* timer */ | |
080dece3 | 97 | struct seq_oss_timer *timer; |
1da177e4 LT |
98 | }; |
99 | ||
100 | ||
101 | /* | |
102 | * function prototypes | |
103 | */ | |
104 | ||
105 | /* create/delete OSS sequencer client */ | |
106 | int snd_seq_oss_create_client(void); | |
107 | int snd_seq_oss_delete_client(void); | |
108 | ||
109 | /* device file interface */ | |
110 | int snd_seq_oss_open(struct file *file, int level); | |
080dece3 TI |
111 | void snd_seq_oss_release(struct seq_oss_devinfo *dp); |
112 | int snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long arg); | |
113 | int snd_seq_oss_read(struct seq_oss_devinfo *dev, char __user *buf, int count); | |
114 | int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt); | |
680ef72a | 115 | __poll_t snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait); |
1da177e4 | 116 | |
080dece3 | 117 | void snd_seq_oss_reset(struct seq_oss_devinfo *dp); |
1da177e4 | 118 | |
1da177e4 | 119 | /* proc interface */ |
080dece3 TI |
120 | void snd_seq_oss_system_info_read(struct snd_info_buffer *buf); |
121 | void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf); | |
122 | void snd_seq_oss_synth_info_read(struct snd_info_buffer *buf); | |
123 | void snd_seq_oss_readq_info_read(struct seq_oss_readq *q, struct snd_info_buffer *buf); | |
1da177e4 LT |
124 | |
125 | /* file mode macros */ | |
126 | #define is_read_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_READ) | |
127 | #define is_write_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_WRITE) | |
128 | #define is_nonblock_mode(mode) ((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK) | |
129 | ||
130 | /* dispatch event */ | |
77933d72 | 131 | static inline int |
080dece3 | 132 | snd_seq_oss_dispatch(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int atomic, int hop) |
1da177e4 LT |
133 | { |
134 | return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop); | |
135 | } | |
136 | ||
6b580f52 | 137 | /* ioctl for writeq */ |
77933d72 | 138 | static inline int |
080dece3 | 139 | snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg) |
1da177e4 | 140 | { |
6b580f52 TI |
141 | int err; |
142 | ||
143 | snd_seq_client_ioctl_lock(dp->cseq); | |
144 | err = snd_seq_kernel_client_ctl(dp->cseq, type, arg); | |
145 | snd_seq_client_ioctl_unlock(dp->cseq); | |
146 | return err; | |
1da177e4 LT |
147 | } |
148 | ||
149 | /* fill the addresses in header */ | |
77933d72 | 150 | static inline void |
080dece3 | 151 | snd_seq_oss_fill_addr(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, |
1da177e4 LT |
152 | int dest_client, int dest_port) |
153 | { | |
154 | ev->queue = dp->queue; | |
155 | ev->source = dp->addr; | |
156 | ev->dest.client = dest_client; | |
157 | ev->dest.port = dest_port; | |
158 | } | |
159 | ||
160 | ||
161 | /* misc. functions for proc interface */ | |
ff16cbc4 | 162 | char *enabled_str(bool b); |
1da177e4 | 163 | |
1da177e4 | 164 | #endif /* __SEQ_OSS_DEVICE_H */ |