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, 118 insertions, 0 deletions

diff --git a/kernel/sound/usb/usbaudio.h b/kernel/sound/usb/usbaudio.h
new file mode 100644
index 000000000..91d038043
--- /dev/null
+++ b/kernel/sound/usb/usbaudio.h
@@ -0,0 +1,118 @@
+#ifndef __USBAUDIO_H
+#define __USBAUDIO_H
+/*
+ *   (Tentative) USB Audio Driver for ALSA
+ *
+ *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
+ *
+ *
+ *   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
+ */
+
+/* handling of USB vendor/product ID pairs as 32-bit numbers */
+#define USB_ID(vendor, product) (((vendor) << 16) | (product))
+#define USB_ID_VENDOR(id) ((id) >> 16)
+#define USB_ID_PRODUCT(id) ((u16)(id))
+
+/*
+ *
+ */
+
+struct snd_usb_audio {
+	int index;
+	struct usb_device *dev;
+	struct snd_card *card;
+	struct usb_interface *pm_intf;
+	u32 usb_id;
+	struct mutex mutex;
+	struct rw_semaphore shutdown_rwsem;
+	unsigned int shutdown:1;
+	unsigned int probing:1;
+	unsigned int in_pm:1;
+	unsigned int autosuspended:1;	
+	unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
+	
+	int num_interfaces;
+	int num_suspended_intf;
+
+	struct list_head pcm_list;	/* list of pcm streams */
+	struct list_head ep_list;	/* list of audio-related endpoints */
+	int pcm_devs;
+
+	struct list_head midi_list;	/* list of midi interfaces */
+
+	struct list_head mixer_list;	/* list of mixer interfaces */
+
+	int setup;			/* from the 'device_setup' module param */
+	bool autoclock;			/* from the 'autoclock' module param */
+
+	struct usb_host_interface *ctrl_intf;	/* the audio control interface */
+};
+
+#define usb_audio_err(chip, fmt, args...) \
+	dev_err(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_warn(chip, fmt, args...) \
+	dev_warn(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_info(chip, fmt, args...) \
+	dev_info(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_dbg(chip, fmt, args...) \
+	dev_dbg(&(chip)->dev->dev, fmt, ##args)
+
+/*
+ * Information about devices with broken descriptors
+ */
+
+/* special values for .ifnum */
+#define QUIRK_NO_INTERFACE		-2
+#define QUIRK_ANY_INTERFACE		-1
+
+enum quirk_type {
+	QUIRK_IGNORE_INTERFACE,
+	QUIRK_COMPOSITE,
+	QUIRK_AUTODETECT,
+	QUIRK_MIDI_STANDARD_INTERFACE,
+	QUIRK_MIDI_FIXED_ENDPOINT,
+	QUIRK_MIDI_YAMAHA,
+	QUIRK_MIDI_ROLAND,
+	QUIRK_MIDI_MIDIMAN,
+	QUIRK_MIDI_NOVATION,
+	QUIRK_MIDI_RAW_BYTES,
+	QUIRK_MIDI_EMAGIC,
+	QUIRK_MIDI_CME,
+	QUIRK_MIDI_AKAI,
+	QUIRK_MIDI_US122L,
+	QUIRK_MIDI_FTDI,
+	QUIRK_AUDIO_STANDARD_INTERFACE,
+	QUIRK_AUDIO_FIXED_ENDPOINT,
+	QUIRK_AUDIO_EDIROL_UAXX,
+	QUIRK_AUDIO_ALIGN_TRANSFER,
+	QUIRK_AUDIO_STANDARD_MIXER,
+
+	QUIRK_TYPE_COUNT
+};
+
+struct snd_usb_audio_quirk {
+	const char *vendor_name;
+	const char *product_name;
+	int16_t ifnum;
+	uint16_t type;
+	const void *data;
+};
+
+#define combine_word(s)    ((*(s)) | ((unsigned int)(s)[1] << 8))
+#define combine_triple(s)  (combine_word(s) | ((unsigned int)(s)[2] << 16))
+#define combine_quad(s)    (combine_triple(s) | ((unsigned int)(s)[3] << 24))
+
+#endif /* __USBAUDIO_H */