v4.19.13 snapshot.
diff --git a/include/sound/pcm_oss.h b/include/sound/pcm_oss.h
new file mode 100644
index 0000000..12bbf8c
--- /dev/null
+++ b/include/sound/pcm_oss.h
@@ -0,0 +1,90 @@
+#ifndef __SOUND_PCM_OSS_H
+#define __SOUND_PCM_OSS_H
+
+/*
+ * Digital Audio (PCM) - OSS compatibility abstract layer
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *
+ *
+ * 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
+ *
+ */
+
+struct snd_pcm_oss_setup {
+ char *task_name;
+ unsigned int disable:1,
+ direct:1,
+ block:1,
+ nonblock:1,
+ partialfrag:1,
+ nosilence:1,
+ buggyptr:1;
+ unsigned int periods;
+ unsigned int period_size;
+ struct snd_pcm_oss_setup *next;
+};
+
+struct snd_pcm_oss_runtime {
+ unsigned params: 1, /* format/parameter change */
+ prepare: 1, /* need to prepare the operation */
+ trigger: 1, /* trigger flag */
+ sync_trigger: 1; /* sync trigger flag */
+ int rate; /* requested rate */
+ int format; /* requested OSS format */
+ unsigned int channels; /* requested channels */
+ unsigned int fragshift;
+ unsigned int maxfrags;
+ unsigned int subdivision; /* requested subdivision */
+ size_t period_bytes; /* requested period size */
+ size_t period_frames; /* period frames for poll */
+ size_t period_ptr; /* actual write pointer to period */
+ unsigned int periods;
+ size_t buffer_bytes; /* requested buffer size */
+ size_t bytes; /* total # bytes processed */
+ size_t mmap_bytes;
+ char *buffer; /* vmallocated period */
+ size_t buffer_used; /* used length from period buffer */
+ struct mutex params_lock;
+ atomic_t rw_ref; /* concurrent read/write accesses */
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+ struct snd_pcm_plugin *plugin_first;
+ struct snd_pcm_plugin *plugin_last;
+#endif
+ unsigned int prev_hw_ptr_period;
+};
+
+struct snd_pcm_oss_file {
+ struct snd_pcm_substream *streams[2];
+};
+
+struct snd_pcm_oss_substream {
+ unsigned oss: 1; /* oss mode */
+ struct snd_pcm_oss_setup setup; /* active setup */
+};
+
+struct snd_pcm_oss_stream {
+ struct snd_pcm_oss_setup *setup_list; /* setup list */
+ struct mutex setup_mutex;
+#ifdef CONFIG_SND_VERBOSE_PROCFS
+ struct snd_info_entry *proc_entry;
+#endif
+};
+
+struct snd_pcm_oss {
+ int reg;
+ unsigned int reg_mask;
+};
+
+#endif /* __SOUND_PCM_OSS_H */