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, 213 insertions, 0 deletions

diff --git a/kernel/sound/pci/pcxhr/pcxhr.h b/kernel/sound/pci/pcxhr/pcxhr.h
new file mode 100644
index 000000000..9e39e509a
--- /dev/null
+++ b/kernel/sound/pci/pcxhr/pcxhr.h
@@ -0,0 +1,213 @@
+/*
+ * Driver for Digigram pcxhr soundcards
+ *
+ * main header file
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   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
+ */
+
+#ifndef __SOUND_PCXHR_H
+#define __SOUND_PCXHR_H
+
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <sound/pcm.h>
+
+#define PCXHR_DRIVER_VERSION		0x000906	/* 0.9.6 */
+#define PCXHR_DRIVER_VERSION_STRING	"0.9.6"		/* 0.9.6 */
+
+
+#define PCXHR_MAX_CARDS		6
+#define PCXHR_PLAYBACK_STREAMS	4
+
+#define PCXHR_GRANULARITY	96	/* min 96 and multiple of 48 */
+/* transfer granularity of pipes and the dsp time (MBOX4) */
+#define PCXHR_GRANULARITY_MIN	96
+/* TODO : granularity could be 64 or 128 */
+#define PCXHR_GRANULARITY_HR22	192	/* granularity for stereo cards */
+
+struct snd_pcxhr;
+struct pcxhr_mgr;
+
+struct pcxhr_stream;
+struct pcxhr_pipe;
+
+enum pcxhr_clock_type {
+	PCXHR_CLOCK_TYPE_INTERNAL = 0,
+	PCXHR_CLOCK_TYPE_WORD_CLOCK,
+	PCXHR_CLOCK_TYPE_AES_SYNC,
+	PCXHR_CLOCK_TYPE_AES_1,
+	PCXHR_CLOCK_TYPE_AES_2,
+	PCXHR_CLOCK_TYPE_AES_3,
+	PCXHR_CLOCK_TYPE_AES_4,
+	PCXHR_CLOCK_TYPE_MAX = PCXHR_CLOCK_TYPE_AES_4,
+	HR22_CLOCK_TYPE_INTERNAL = PCXHR_CLOCK_TYPE_INTERNAL,
+	HR22_CLOCK_TYPE_AES_SYNC,
+	HR22_CLOCK_TYPE_AES_1,
+	HR22_CLOCK_TYPE_MAX = HR22_CLOCK_TYPE_AES_1,
+};
+
+struct pcxhr_mgr {
+	unsigned int num_cards;
+	struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
+
+	struct pci_dev *pci;
+
+	int irq;
+
+	int granularity;
+
+	/* card access with 1 mem bar and 2 io bar's */
+	unsigned long port[3];
+
+	/* share the name */
+	char shortname[32];		/* short name of this soundcard */
+	char longname[96];		/* name of this soundcard */
+
+	struct pcxhr_rmh *prmh;
+
+	struct mutex lock;		/* interrupt lock */
+	struct mutex msg_lock;		/* message lock */
+
+	struct mutex setup_mutex;	/* mutex used in hw_params, open and close */
+	struct mutex mixer_mutex;	/* mutex for mixer */
+
+	/* hardware interface */
+	unsigned int dsp_loaded;	/* bit flags of loaded dsp indices */
+	unsigned int dsp_version;	/* read from embedded once firmware is loaded */
+	int playback_chips;
+	int capture_chips;
+	int fw_file_set;
+	int firmware_num;
+	unsigned int is_hr_stereo:1;
+	unsigned int board_has_aes1:1;	/* if 1 board has AES1 plug and SRC */
+	unsigned int board_has_analog:1; /* if 0 the board is digital only */
+	unsigned int board_has_mic:1; /* if 1 the board has microphone input */
+	unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */
+	unsigned int mono_capture:1; /* if 1 the board does mono capture */
+	unsigned int capture_ltc:1; /* if 1 the board captures LTC input */
+
+	struct snd_dma_buffer hostport;
+
+	enum pcxhr_clock_type use_clock_type;	/* clock type selected by mixer */
+	enum pcxhr_clock_type cur_clock_type;	/* current clock type synced */
+	int sample_rate;
+	int ref_count_rate;
+	int timer_toggle;		/* timer interrupt toggles between the two values 0x200 and 0x300 */
+	int dsp_time_last;		/* the last dsp time (read by interrupt) */
+	int dsp_time_err;		/* dsp time errors */
+	unsigned int src_it_dsp;	/* dsp interrupt source */
+	unsigned int io_num_reg_cont;	/* backup of IO_NUM_REG_CONT */
+	unsigned int codec_speed;	/* speed mode of the codecs */
+	unsigned int sample_rate_real;	/* current real sample rate */
+	int last_reg_stat;
+	int async_err_stream_xrun;
+	int async_err_pipe_xrun;
+	int async_err_other_last;
+
+	unsigned char xlx_cfg;		/* copy of PCXHR_XLX_CFG register */
+	unsigned char xlx_selmic;	/* copy of PCXHR_XLX_SELMIC register */
+	unsigned char dsp_reset;	/* copy of PCXHR_DSP_RESET register */
+};
+
+
+enum pcxhr_stream_status {
+	PCXHR_STREAM_STATUS_FREE,
+	PCXHR_STREAM_STATUS_OPEN,
+	PCXHR_STREAM_STATUS_SCHEDULE_RUN,
+	PCXHR_STREAM_STATUS_STARTED,
+	PCXHR_STREAM_STATUS_RUNNING,
+	PCXHR_STREAM_STATUS_SCHEDULE_STOP,
+	PCXHR_STREAM_STATUS_STOPPED,
+	PCXHR_STREAM_STATUS_PAUSED
+};
+
+struct pcxhr_stream {
+	struct snd_pcm_substream *substream;
+	snd_pcm_format_t format;
+	struct pcxhr_pipe *pipe;
+
+	enum pcxhr_stream_status status;	/* free, open, running, draining, pause */
+
+	u_int64_t timer_abs_periods;	/* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
+	u_int32_t timer_period_frag;	/* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
+	u_int32_t timer_buf_periods;	/* nb of periods in the buffer that have already elapsed */
+	int timer_is_synced;		/* if(0) : timer needs to be resynced with real hardware pointer */
+
+	int channels;
+};
+
+
+enum pcxhr_pipe_status {
+	PCXHR_PIPE_UNDEFINED,
+	PCXHR_PIPE_DEFINED
+};
+
+struct pcxhr_pipe {
+	enum pcxhr_pipe_status status;
+	int is_capture;		/* this is a capture pipe */
+	int first_audio;	/* first audio num */
+};
+
+
+struct snd_pcxhr {
+	struct snd_card *card;
+	struct pcxhr_mgr *mgr;
+	int chip_idx;		/* zero based */
+
+	struct snd_pcm *pcm;		/* PCM */
+
+	struct pcxhr_pipe playback_pipe;	/* 1 stereo pipe only */
+	struct pcxhr_pipe capture_pipe[2];	/* 1 stereo or 2 mono pipes */
+
+	struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
+	struct pcxhr_stream capture_stream[2];	/* 1 stereo or 2 mono streams */
+	int nb_streams_play;
+	int nb_streams_capt;
+
+	int analog_playback_active[2];	/* Mixer : Master Playback !mute */
+	int analog_playback_volume[2];	/* Mixer : Master Playback Volume */
+	int analog_capture_volume[2];	/* Mixer : Master Capture Volume */
+	int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];
+	int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];
+	int digital_capture_volume[2];	/* Mixer : Digital Capture Volume */
+	int monitoring_active[2];	/* Mixer : Monitoring Active */
+	int monitoring_volume[2];	/* Mixer : Monitoring Volume */
+	int audio_capture_source;	/* Mixer : Audio Capture Source */
+	int mic_volume;			/* used by cards with MIC only */
+	int mic_boost;			/* used by cards with MIC only */
+	int mic_active;			/* used by cards with MIC only */
+	int analog_capture_active;	/* used by cards with MIC only */
+	int phantom_power;		/* used by cards with MIC only */
+
+	unsigned char aes_bits[5];	/* Mixer : IEC958_AES bits */
+};
+
+struct pcxhr_hostport
+{
+	char purgebuffer[6];
+	char reserved[2];
+};
+
+/* exported */
+int pcxhr_create_pcm(struct snd_pcxhr *chip);
+int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
+int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
+			     enum pcxhr_clock_type clock_type,
+			     int *sample_rate);
+
+#endif /* __SOUND_PCXHR_H */