1 #ifndef __SOUND_SEQ_OSS_H 2 #define __SOUND_SEQ_OSS_H 3 4 /* 5 * OSS compatible sequencer driver 6 * 7 * Copyright (C) 1998,99 Takashi Iwai 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 */ 23 24 #include "asequencer.h" 25 #include "seq_kernel.h" 26 27 /* 28 * argument structure for synthesizer operations 29 */ 30 struct snd_seq_oss_arg { 31 /* given by OSS sequencer */ 32 int app_index; /* application unique index */ 33 int file_mode; /* file mode - see below */ 34 int seq_mode; /* sequencer mode - see below */ 35 36 /* following must be initialized in open callback */ 37 struct snd_seq_addr addr; /* opened port address */ 38 void *private_data; /* private data for lowlevel drivers */ 39 40 /* note-on event passing mode: initially given by OSS seq, 41 * but configurable by drivers - see below 42 */ 43 int event_passing; 44 }; 45 46 47 /* 48 * synthesizer operation callbacks 49 */ 50 struct snd_seq_oss_callback { 51 struct module *owner; 52 int (*open)(struct snd_seq_oss_arg *p, void *closure); 53 int (*close)(struct snd_seq_oss_arg *p); 54 int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg); 55 int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count); 56 int (*reset)(struct snd_seq_oss_arg *p); 57 int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data); 58 }; 59 60 /* flag: file_mode */ 61 #define SNDRV_SEQ_OSS_FILE_ACMODE 3 62 #define SNDRV_SEQ_OSS_FILE_READ 1 63 #define SNDRV_SEQ_OSS_FILE_WRITE 2 64 #define SNDRV_SEQ_OSS_FILE_NONBLOCK 4 65 66 /* flag: seq_mode */ 67 #define SNDRV_SEQ_OSS_MODE_SYNTH 0 68 #define SNDRV_SEQ_OSS_MODE_MUSIC 1 69 70 /* flag: event_passing */ 71 #define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */ 72 #define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */ 73 #define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */ 74 75 /* default control rate: fixed */ 76 #define SNDRV_SEQ_OSS_CTRLRATE 100 77 78 /* default max queue length: configurable by module option */ 79 #define SNDRV_SEQ_OSS_MAX_QLEN 1024 80 81 82 /* 83 * data pointer to snd_seq_register_device 84 */ 85 struct snd_seq_oss_reg { 86 int type; 87 int subtype; 88 int nvoices; 89 struct snd_seq_oss_callback oper; 90 void *private_data; 91 }; 92 93 /* device id */ 94 #define SNDRV_SEQ_DEV_ID_OSS "seq-oss" 95 96 #endif /* __SOUND_SEQ_OSS_H */ 97
