Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 185 insertions, 0 deletions

diff --git a/kernel/sound/core/oss/pcm_plugin.h b/kernel/sound/core/oss/pcm_plugin.h
new file mode 100644
index 000000000..a5035c236
--- /dev/null
+++ b/kernel/sound/core/oss/pcm_plugin.h
@@ -0,0 +1,185 @@
+#ifndef __PCM_PLUGIN_H
+#define __PCM_PLUGIN_H
+
+/*
+ *  Digital Audio (Plugin interface) 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
+ *
+ */
+
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+
+#define snd_pcm_plug_stream(plug) ((plug)->stream)
+
+enum snd_pcm_plugin_action {
+	INIT = 0,
+	PREPARE = 1,
+};
+
+struct snd_pcm_channel_area {
+	void *addr;			/* base address of channel samples */
+	unsigned int first;		/* offset to first sample in bits */
+	unsigned int step;		/* samples distance in bits */
+};
+
+struct snd_pcm_plugin_channel {
+	void *aptr;			/* pointer to the allocated area */
+	struct snd_pcm_channel_area area;
+	snd_pcm_uframes_t frames;	/* allocated frames */
+	unsigned int enabled:1;		/* channel need to be processed */
+	unsigned int wanted:1;		/* channel is wanted */
+};
+
+struct snd_pcm_plugin_format {
+	snd_pcm_format_t format;
+	unsigned int rate;
+	unsigned int channels;
+};
+
+struct snd_pcm_plugin {
+	const char *name;		/* plug-in name */
+	int stream;
+	struct snd_pcm_plugin_format src_format;	/* source format */
+	struct snd_pcm_plugin_format dst_format;	/* destination format */
+	int src_width;			/* sample width in bits */
+	int dst_width;			/* sample width in bits */
+	snd_pcm_access_t access;
+	snd_pcm_sframes_t (*src_frames)(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t dst_frames);
+	snd_pcm_sframes_t (*dst_frames)(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t src_frames);
+	snd_pcm_sframes_t (*client_channels)(struct snd_pcm_plugin *plugin,
+					     snd_pcm_uframes_t frames,
+					     struct snd_pcm_plugin_channel **channels);
+	snd_pcm_sframes_t (*transfer)(struct snd_pcm_plugin *plugin,
+				      const struct snd_pcm_plugin_channel *src_channels,
+				      struct snd_pcm_plugin_channel *dst_channels,
+				      snd_pcm_uframes_t frames);
+	int (*action)(struct snd_pcm_plugin *plugin,
+		      enum snd_pcm_plugin_action action,
+		      unsigned long data);
+	struct snd_pcm_plugin *prev;
+	struct snd_pcm_plugin *next;
+	struct snd_pcm_substream *plug;
+	void *private_data;
+	void (*private_free)(struct snd_pcm_plugin *plugin);
+	char *buf;
+	snd_pcm_uframes_t buf_frames;
+	struct snd_pcm_plugin_channel *buf_channels;
+	char extra_data[0];
+};
+
+int snd_pcm_plugin_build(struct snd_pcm_substream *handle,
+                         const char *name,
+                         struct snd_pcm_plugin_format *src_format,
+                         struct snd_pcm_plugin_format *dst_format,
+                         size_t extra,
+                         struct snd_pcm_plugin **ret);
+int snd_pcm_plugin_free(struct snd_pcm_plugin *plugin);
+int snd_pcm_plugin_clear(struct snd_pcm_plugin **first);
+int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames);
+snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t drv_size);
+snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t clt_size);
+
+#define FULL ROUTE_PLUGIN_RESOLUTION
+#define HALF ROUTE_PLUGIN_RESOLUTION / 2
+
+int snd_pcm_plugin_build_io(struct snd_pcm_substream *handle,
+			    struct snd_pcm_hw_params *params,
+			    struct snd_pcm_plugin **r_plugin);
+int snd_pcm_plugin_build_linear(struct snd_pcm_substream *handle,
+				struct snd_pcm_plugin_format *src_format,
+				struct snd_pcm_plugin_format *dst_format,
+				struct snd_pcm_plugin **r_plugin);
+int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *handle,
+			       struct snd_pcm_plugin_format *src_format,
+			       struct snd_pcm_plugin_format *dst_format,
+			       struct snd_pcm_plugin **r_plugin);
+int snd_pcm_plugin_build_rate(struct snd_pcm_substream *handle,
+			      struct snd_pcm_plugin_format *src_format,
+			      struct snd_pcm_plugin_format *dst_format,
+			      struct snd_pcm_plugin **r_plugin);
+int snd_pcm_plugin_build_route(struct snd_pcm_substream *handle,
+			       struct snd_pcm_plugin_format *src_format,
+			       struct snd_pcm_plugin_format *dst_format,
+		               struct snd_pcm_plugin **r_plugin);
+int snd_pcm_plugin_build_copy(struct snd_pcm_substream *handle,
+			      struct snd_pcm_plugin_format *src_format,
+			      struct snd_pcm_plugin_format *dst_format,
+			      struct snd_pcm_plugin **r_plugin);
+
+int snd_pcm_plug_format_plugins(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_pcm_hw_params *slave_params);
+
+snd_pcm_format_t snd_pcm_plug_slave_format(snd_pcm_format_t format,
+					   struct snd_mask *format_mask);
+
+int snd_pcm_plugin_append(struct snd_pcm_plugin *plugin);
+
+snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *handle,
+					      struct snd_pcm_plugin_channel *src_channels,
+					      snd_pcm_uframes_t size);
+snd_pcm_sframes_t snd_pcm_plug_read_transfer(struct snd_pcm_substream *handle,
+					     struct snd_pcm_plugin_channel *dst_channels_final,
+					     snd_pcm_uframes_t size);
+
+snd_pcm_sframes_t snd_pcm_plug_client_channels_buf(struct snd_pcm_substream *handle,
+						   char *buf, snd_pcm_uframes_t count,
+						   struct snd_pcm_plugin_channel **channels);
+
+snd_pcm_sframes_t snd_pcm_plugin_client_channels(struct snd_pcm_plugin *plugin,
+						 snd_pcm_uframes_t frames,
+						 struct snd_pcm_plugin_channel **channels);
+
+int snd_pcm_area_silence(const struct snd_pcm_channel_area *dst_channel,
+			 size_t dst_offset,
+			 size_t samples, snd_pcm_format_t format);
+int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_channel,
+		      size_t src_offset,
+		      const struct snd_pcm_channel_area *dst_channel,
+		      size_t dst_offset,
+		      size_t samples, snd_pcm_format_t format);
+
+void *snd_pcm_plug_buf_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t size);
+void snd_pcm_plug_buf_unlock(struct snd_pcm_substream *plug, void *ptr);
+snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream,
+				     const char *ptr, snd_pcm_uframes_t size,
+				     int in_kernel);
+snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream,
+				    char *ptr, snd_pcm_uframes_t size, int in_kernel);
+snd_pcm_sframes_t snd_pcm_oss_writev3(struct snd_pcm_substream *substream,
+				      void **bufs, snd_pcm_uframes_t frames,
+				      int in_kernel);
+snd_pcm_sframes_t snd_pcm_oss_readv3(struct snd_pcm_substream *substream,
+				     void **bufs, snd_pcm_uframes_t frames,
+				     int in_kernel);
+
+#else
+
+static inline snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t drv_size) { return drv_size; }
+static inline snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *handle, snd_pcm_uframes_t clt_size) { return clt_size; }
+static inline int snd_pcm_plug_slave_format(int format, struct snd_mask *format_mask) { return format; }
+
+#endif
+
+#ifdef PLUGIN_DEBUG
+#define pdprintf(fmt, args...) printk(KERN_DEBUG "plugin: " fmt, ##args)
+#else
+#define pdprintf(fmt, args...)
+#endif
+
+#endif				/* __PCM_PLUGIN_H */