1 files changed, 102 insertions, 0 deletions

diff --git a/include/sound/seq_oss.h b/include/sound/seq_oss.h
new file mode 100644
index 000000000000..bd7e57322ab6
--- /dev/null
+++ b/include/sound/seq_oss.h
@@ -0,0 +1,102 @@
+#ifndef __SOUND_SEQ_OSS_H
+#define __SOUND_SEQ_OSS_H
+
+/*
+ * OSS compatible sequencer driver
+ *
+ * Copyright (C) 1998,99 Takashi Iwai
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include "asequencer.h"
+#include "seq_kernel.h"
+
+/*
+ * type definitions
+ */
+typedef struct snd_seq_oss_arg_t snd_seq_oss_arg_t;
+typedef struct snd_seq_oss_callback_t snd_seq_oss_callback_t;
+
+/*
+ * argument structure for synthesizer operations
+ */
+struct snd_seq_oss_arg_t {
+        /* given by OSS sequencer */
+        int app_index;  /* application unique index */
+        int file_mode;  /* file mode - see below */
+        int seq_mode;   /* sequencer mode - see below */
+
+        /* following must be initialized in open callback */
+        snd_seq_addr_t addr;    /* opened port address */
+        void *private_data;     /* private data for lowlevel drivers */
+
+        /* note-on event passing mode: initially given by OSS seq,
+         * but configurable by drivers - see below
+         */
+        int event_passing;
+};
+
+
+/*
+ * synthesizer operation callbacks
+ */
+struct snd_seq_oss_callback_t {
+        struct module *owner;
+        int (*open)(snd_seq_oss_arg_t *p, void *closure);
+        int (*close)(snd_seq_oss_arg_t *p);
+        int (*ioctl)(snd_seq_oss_arg_t *p, unsigned int cmd, unsigned long arg);
+        int (*load_patch)(snd_seq_oss_arg_t *p, int format, const char __user *buf, int offs, int count);
+        int (*reset)(snd_seq_oss_arg_t *p);
+        int (*raw_event)(snd_seq_oss_arg_t *p, unsigned char *data);
+};
+
+/* flag: file_mode */
+#define SNDRV_SEQ_OSS_FILE_ACMODE               3
+#define SNDRV_SEQ_OSS_FILE_READ         1
+#define SNDRV_SEQ_OSS_FILE_WRITE                2
+#define SNDRV_SEQ_OSS_FILE_NONBLOCK     4
+
+/* flag: seq_mode */
+#define SNDRV_SEQ_OSS_MODE_SYNTH                0
+#define SNDRV_SEQ_OSS_MODE_MUSIC                1
+
+/* flag: event_passing */
+#define SNDRV_SEQ_OSS_PROCESS_EVENTS    0       /* key == 255 is processed as velocity change */
+#define SNDRV_SEQ_OSS_PASS_EVENTS               1       /* pass all events to callback */
+#define SNDRV_SEQ_OSS_PROCESS_KEYPRESS  2       /* key >= 128 will be processed as key-pressure */
+
+/* default control rate: fixed */
+#define SNDRV_SEQ_OSS_CTRLRATE          100
+
+/* default max queue length: configurable by module option */
+#define SNDRV_SEQ_OSS_MAX_QLEN          1024
+
+
+/*
+ * data pointer to snd_seq_register_device
+ */
+typedef struct snd_seq_oss_reg {
+        int type;
+        int subtype;
+        int nvoices;
+        snd_seq_oss_callback_t oper;
+        void *private_data;
+} snd_seq_oss_reg_t;
+
+/* device id */
+#define SNDRV_SEQ_DEV_ID_OSS            "seq-oss"
+
+#endif /* __SOUND_SEQ_OSS_H */