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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OSS compatible sequencer driver * * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de> */ #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/signal.h> #include <sound/core.h> #include <sound/seq_oss.h> #include <sound/rawmidi.h> #include <sound/seq_kernel.h> #include <sound/info.h> #include "../seq_clientmgr.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); __poll_t 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_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 for writeq */ static inline int snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg) { int err; snd_seq_client_ioctl_lock(dp->cseq); err = snd_seq_kernel_client_ctl(dp->cseq, type, arg); snd_seq_client_ioctl_unlock(dp->cseq); return err; } /* 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 */ |