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, 222 insertions, 0 deletions

diff --git a/kernel/sound/pci/lola/lola_proc.c b/kernel/sound/pci/lola/lola_proc.c
new file mode 100644
index 000000000..c241dc06d
--- /dev/null
+++ b/kernel/sound/pci/lola/lola_proc.c
@@ -0,0 +1,222 @@
+/*
+ *  Support for Digigram Lola PCI-e boards
+ *
+ *  Copyright (c) 2011 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/pcm.h>
+#include "lola.h"
+
+static void print_audio_widget(struct snd_info_buffer *buffer,
+			       struct lola *chip, int nid, const char *name)
+{
+	unsigned int val;
+
+	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
+	snd_iprintf(buffer, "Node 0x%02x %s wcaps 0x%x\n", nid, name, val);
+	lola_read_param(chip, nid, LOLA_PAR_STREAM_FORMATS, &val);
+	snd_iprintf(buffer, "  Formats: 0x%x\n", val);
+}
+
+static void print_pin_widget(struct snd_info_buffer *buffer,
+			     struct lola *chip, int nid, unsigned int ampcap,
+			     const char *name)
+{
+	unsigned int val;
+
+	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
+	snd_iprintf(buffer, "Node 0x%02x %s wcaps 0x%x\n", nid, name, val);
+	if (val == 0x00400200)
+		return;
+	lola_read_param(chip, nid, ampcap, &val);
+	snd_iprintf(buffer, "  Amp-Caps: 0x%x\n", val);
+	snd_iprintf(buffer, "    mute=%d, step-size=%d, steps=%d, ofs=%d\n",
+		    LOLA_AMP_MUTE_CAPABLE(val),
+		    LOLA_AMP_STEP_SIZE(val),
+		    LOLA_AMP_NUM_STEPS(val),
+		    LOLA_AMP_OFFSET(val));
+	lola_codec_read(chip, nid, LOLA_VERB_GET_MAX_LEVEL, 0, 0, &val, NULL);
+	snd_iprintf(buffer, "  Max-level: 0x%x\n", val);
+}
+
+static void print_clock_widget(struct snd_info_buffer *buffer,
+			       struct lola *chip, int nid)
+{
+	int i, j, num_clocks;
+	unsigned int val;
+
+	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
+	snd_iprintf(buffer, "Node 0x%02x [Clock] wcaps 0x%x\n", nid, val);
+	num_clocks = val & 0xff;
+	for (i = 0; i < num_clocks; i += 4) {
+		unsigned int res_ex;
+		unsigned short items[4];
+		const char *name;
+
+		lola_codec_read(chip, nid, LOLA_VERB_GET_CLOCK_LIST,
+				i, 0, &val, &res_ex);
+		items[0] = val & 0xfff;
+		items[1] = (val >> 16) & 0xfff;
+		items[2] = res_ex & 0xfff;
+		items[3] = (res_ex >> 16) & 0xfff;
+		for (j = 0; j < 4; j++) {
+			unsigned char type = items[j] >> 8;
+			unsigned int freq = items[j] & 0xff;
+			if (i + j >= num_clocks)
+				break;
+			if (type == LOLA_CLOCK_TYPE_INTERNAL) {
+				name = "Internal";
+				freq = lola_sample_rate_convert(freq);
+			} else if (type == LOLA_CLOCK_TYPE_VIDEO) {
+				name = "Video";
+				freq = lola_sample_rate_convert(freq);
+			} else {
+				name = "Other";
+			}
+			snd_iprintf(buffer, "  Clock %d: Type %d:%s, freq=%d\n",
+				    i + j, type, name, freq);
+		}
+	}
+}
+
+static void print_mixer_widget(struct snd_info_buffer *buffer,
+			       struct lola *chip, int nid)
+{
+	unsigned int val;
+
+	lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val);
+	snd_iprintf(buffer, "Node 0x%02x [Mixer] wcaps 0x%x\n", nid, val);
+}
+
+static void lola_proc_codec_read(struct snd_info_entry *entry,
+				 struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	unsigned int val;
+	int i, nid;
+
+	lola_read_param(chip, 0, LOLA_PAR_VENDOR_ID, &val);
+	snd_iprintf(buffer, "Vendor: 0x%08x\n", val);
+	lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val);
+	snd_iprintf(buffer, "Function Type: %d\n", val);
+	lola_read_param(chip, 1, LOLA_PAR_SPECIFIC_CAPS, &val);
+	snd_iprintf(buffer, "Specific-Caps: 0x%08x\n", val);
+	snd_iprintf(buffer, "  Pins-In %d, Pins-Out %d\n",
+		    chip->pin[CAPT].num_pins, chip->pin[PLAY].num_pins);
+	nid = 2;
+	for (i = 0; i < chip->pcm[CAPT].num_streams; i++, nid++)
+		print_audio_widget(buffer, chip, nid, "[Audio-In]");
+	for (i = 0; i < chip->pcm[PLAY].num_streams; i++, nid++)
+		print_audio_widget(buffer, chip, nid, "[Audio-Out]");
+	for (i = 0; i < chip->pin[CAPT].num_pins; i++, nid++)
+		print_pin_widget(buffer, chip, nid, LOLA_PAR_AMP_IN_CAP,
+				 "[Pin-In]");
+	for (i = 0; i < chip->pin[PLAY].num_pins; i++, nid++)
+		print_pin_widget(buffer, chip, nid, LOLA_PAR_AMP_OUT_CAP,
+				 "[Pin-Out]");
+	if (LOLA_AFG_CLOCK_WIDGET_PRESENT(chip->lola_caps)) {
+		print_clock_widget(buffer, chip, nid);
+		nid++;
+	}
+	if (LOLA_AFG_MIXER_WIDGET_PRESENT(chip->lola_caps)) {
+		print_mixer_widget(buffer, chip, nid);
+		nid++;
+	}
+}
+
+/* direct codec access for debugging */
+static void lola_proc_codec_rw_write(struct snd_info_entry *entry,
+				     struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	char line[64];
+	unsigned int id, verb, data, extdata;
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		if (sscanf(line, "%u %u %u %u", &id, &verb, &data, &extdata) != 4)
+			continue;
+		lola_codec_read(chip, id, verb, data, extdata,
+				&chip->debug_res,
+				&chip->debug_res_ex);
+	}
+}
+
+static void lola_proc_codec_rw_read(struct snd_info_entry *entry,
+				    struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	snd_iprintf(buffer, "0x%x 0x%x\n", chip->debug_res, chip->debug_res_ex);
+}
+
+/*
+ * dump some registers
+ */
+static void lola_proc_regs_read(struct snd_info_entry *entry,
+				struct snd_info_buffer *buffer)
+{
+	struct lola *chip = entry->private_data;
+	int i;
+
+	for (i = 0; i < 0x40; i += 4) {
+		snd_iprintf(buffer, "BAR0 %02x: %08x\n", i,
+			    readl(chip->bar[BAR0].remap_addr + i));
+	}
+	snd_iprintf(buffer, "\n");
+	for (i = 0; i < 0x30; i += 4) {
+		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
+			    readl(chip->bar[BAR1].remap_addr + i));
+	}
+	snd_iprintf(buffer, "\n");
+	for (i = 0x80; i < 0xa0; i += 4) {
+		snd_iprintf(buffer, "BAR1 %02x: %08x\n", i,
+			    readl(chip->bar[BAR1].remap_addr + i));
+	}
+	snd_iprintf(buffer, "\n");
+	for (i = 0; i < 32; i++) {
+		snd_iprintf(buffer, "DSD %02x STS  %08x\n", i,
+			    lola_dsd_read(chip, i, STS));
+		snd_iprintf(buffer, "DSD %02x LPIB %08x\n", i,
+			    lola_dsd_read(chip, i, LPIB));
+		snd_iprintf(buffer, "DSD %02x CTL  %08x\n", i,
+			    lola_dsd_read(chip, i, CTL));
+		snd_iprintf(buffer, "DSD %02x LVIL %08x\n", i,
+			    lola_dsd_read(chip, i, LVI));
+		snd_iprintf(buffer, "DSD %02x BDPL %08x\n", i,
+			    lola_dsd_read(chip, i, BDPL));
+		snd_iprintf(buffer, "DSD %02x BDPU %08x\n", i,
+			    lola_dsd_read(chip, i, BDPU));
+	}
+}
+
+void lola_proc_debug_new(struct lola *chip)
+{
+	struct snd_info_entry *entry;
+
+	if (!snd_card_proc_new(chip->card, "codec", &entry))
+		snd_info_set_text_ops(entry, chip, lola_proc_codec_read);
+	if (!snd_card_proc_new(chip->card, "codec_rw", &entry)) {
+		snd_info_set_text_ops(entry, chip, lola_proc_codec_rw_read);
+		entry->mode |= S_IWUSR;
+		entry->c.text.write = lola_proc_codec_rw_write;
+	}
+	if (!snd_card_proc_new(chip->card, "regs", &entry))
+		snd_info_set_text_ops(entry, chip, lola_proc_regs_read);
+}