V4L/DVB: ngene: Initial check-in

Add Micronas nGene PCIe bridge driver.

The source code was provided by Micronas / Ralph Metzler,
and has been reformatted to comply with Linux Codingstyle.

Signed-off-by: Matthias Benesch <twoof7@freenet.de>
Signed-off-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1937 insertions, 0 deletions

diff --git a/drivers/media/dvb/ngene/ngene-v4l2.c b/drivers/media/dvb/ngene/ngene-v4l2.c
new file mode 100644
index 00000000000..c0a9147c44a
--- /dev/null
+++ b/drivers/media/dvb/ngene/ngene-v4l2.c
@@ -0,0 +1,1937 @@
+/*
+ * ngene_v4l2.c: nGene PCIe bridge driver V4L2 support
+ *
+ * Copyright (C) 2005-2007 Micronas
+ *
+ * Based on the initial V4L2 support port by Thomas Eschbach.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/fs.h>
+#include <linux/unistd.h>
+#include <linux/time.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+#include <linux/videodev2.h>
+#include <linux/videodev.h>
+#include <linux/version.h>
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/kmap_types.h>
+#include <linux/videodev.h>
+
+#include <media/v4l2-dev.h>
+
+#include "ngene.h"
+#include "ngene-ioctls.h"
+
+/****************************************************************************/
+
+static unsigned int gbuffers = 8;
+static unsigned int gbufsize = 0x208000;
+
+enum km_type ngene_km_types[] = {
+	KM_USER0,
+	KM_USER1,
+	KM_SOFTIRQ0,
+	KM_SOFTIRQ1,
+};
+
+#define V4L2_STD_NTSC_M_KOREA          ((v4l2_std_id)0x00004000)
+#define V4L2_STD_SECAM_L1              ((v4l2_std_id)0x00008000)
+
+static inline void *my_video_get_drvdata(struct video_device *vd)
+{
+	return dev_get_drvdata(vd->dev);
+}
+
+static inline void my_video_set_drvdata(struct video_device *vd, void *d)
+{
+	dev_set_drvdata(vd->dev, d);
+}
+
+static struct ngene_tvnorm ngene_tvnorms_hd[] = {
+	{
+		.v4l2_id        = V4L2_STD_PAL_BG,
+		.name           = "1080i50",
+		.swidth         = 1920,
+		.sheight        = 1080,
+		.tuner_norm     = 1,
+		.soundstd       = 1,
+	}
+};
+
+static struct ngene_tvnorm ngene_tvnorms_sd[] = {
+	/* PAL-BDGHI */
+	/* max. active video is actually 922, but 924 is divisible by 4 & 3!*/
+	/* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
+	{
+		.v4l2_id        = V4L2_STD_PAL_BG,
+		.name           = "PAL-BG",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 1,
+		.soundstd       = 1,
+	}, {
+		.v4l2_id        = V4L2_STD_PAL_DK,
+		.name           = "PAL-DK",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 2,
+		.soundstd       = 2,
+	}, {
+		.v4l2_id        = V4L2_STD_PAL_H,
+		.name           = "PAL-H",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 0,
+		.soundstd       = 1,
+	}, {
+		.v4l2_id        = V4L2_STD_PAL_I,
+		.name           = "PAL-I",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 4,
+		.soundstd       = 4,
+	}, {
+		.v4l2_id        = V4L2_STD_PAL_M,
+		.name           = "PAL_M",
+		.swidth         = 720,
+		.sheight        = 5760,
+		.tuner_norm     = 7,
+		.soundstd       = 5,
+	}, {
+		.v4l2_id        = V4L2_STD_NTSC_M,
+		.name           = "NTSC_M",
+		.swidth         = 720,
+		.sheight        = 480,
+		.tuner_norm     = 7,
+		.soundstd       = 5,
+	}, {
+		.v4l2_id        = V4L2_STD_NTSC_M_JP,
+		.name           = "NTSC_M_JP",
+		.swidth         = 720,
+		.sheight        = 480,
+		.tuner_norm     = 7,
+		.soundstd       = 6,
+	}, {
+		.v4l2_id        = V4L2_STD_PAL_N,
+		.name           = "PAL-N",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 7,
+		.soundstd       = 5,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_B,
+		.name           = "SECAM_B",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 1,
+		.soundstd       = 1,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_D,
+		.name           = "SECAM_D",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 2,
+		.soundstd       = 2,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_G,
+		.name           = "SECAM_G",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 3,
+		.soundstd       = 1,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_H,
+		.name           = "SECAM_H",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 3,
+		.soundstd       = 1,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_K,
+		.name           = "SECAM_K",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 2,
+		.soundstd       = 2,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_K1,
+		.name           = "SECAM_K1",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 2,
+		.soundstd       = 2,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_L,
+		.name           = "SECAM_L",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 5,
+		.soundstd       = 3,
+	}, {
+		.v4l2_id        = V4L2_STD_NTSC_M_KOREA,
+		.name           = "NTSC_M_KOREA",
+		.swidth         = 720,
+		.sheight        = 480,
+		.tuner_norm     = 7,
+		.soundstd       = 7,
+	}, {
+		.v4l2_id        = V4L2_STD_SECAM_L1,
+		.name           = "SECAM_L1",
+		.swidth         = 720,
+		.sheight        = 576,
+		.tuner_norm     = 6,
+		.soundstd       = 3,
+	}
+
+};
+
+static const int NGENE_TVNORMS = ARRAY_SIZE(ngene_tvnorms_sd);
+
+static u8 BlackLine[1440] = {
+	/* 0x80, */ 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10,
+	0x80,
+};
+
+#define V4L2_CID_PRIVATE_SHARPNESS   (V4L2_CID_PRIVATE_BASE + 0)
+#define V4L2_CID_PRIVATE_LASTP1      (V4L2_CID_PRIVATE_BASE + 1)
+
+static const struct v4l2_queryctrl no_ctl = {
+	.name  = "no_ctl",
+	.flags = V4L2_CTRL_FLAG_DISABLED,
+};
+
+static const struct v4l2_queryctrl ngene_ctls[] = {
+	/* --- video --- */
+	{
+		.id            = V4L2_CID_BRIGHTNESS,
+		.name          = "Brightness",
+		.minimum       = -127,
+		.maximum       = 127,
+		.step          = 1,
+		.default_value = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id            = V4L2_CID_CONTRAST,
+		.name          = "Contrast",
+		.minimum       = 0,
+		.maximum       = 63,
+		.step          = 1,
+		.default_value = 30,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id            = V4L2_CID_SATURATION,
+		.name          = "Saturation",
+		.minimum       = 0,
+		.maximum       = 4094,
+		.step          = 1,
+		.default_value = 2000,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id            = V4L2_CID_HUE,
+		.name          = "Hue",
+		.minimum       = -2047,
+		.maximum       = 2047,
+		.step          = 1,
+		.default_value = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},
+	/* --- audio --- */
+	{
+		.id            = V4L2_CID_AUDIO_MUTE,
+		.name          = "Mute",
+		.minimum       = 0,
+		.maximum       = 1,
+		.type          = V4L2_CTRL_TYPE_BOOLEAN,
+	}, {
+		.id            = V4L2_CID_PRIVATE_SHARPNESS,
+		.name          = "sharpness",
+		.minimum       = 0,
+		.maximum       = 100,
+		.step          = 1,
+		.default_value = 50,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},
+
+};
+
+static const int NGENE_CTLS = ARRAY_SIZE(ngene_ctls);
+
+static const struct ngene_format ngene_formats[] = {
+	{
+		.name     = "4:2:2, packed, YUYV",
+		.palette  = -1,
+		.fourcc   = V4L2_PIX_FMT_YUYV,
+		.format   = V4L2_PIX_FMT_YUYV,
+		.palette  = VIDEO_PALETTE_YUYV,
+		.depth    = 16,
+		.flags    = 0x02,/* FORMAT_FLAGS_PACKED, */
+	}
+};
+
+static const unsigned int NGENE_FORMATS = ARRAY_SIZE(ngene_formats);
+
+/****************************************************************************/
+
+static struct videobuf_queue *ngene_queue(struct ngene_vopen *vopen)
+{
+	struct videobuf_queue *q = NULL;
+
+	switch (vopen->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		q = &vopen->vbuf_q;
+		break;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		q = &vopen->vbi;
+		break;
+	default:
+		break;
+	}
+	return q;
+}
+
+static int ngene_resource(struct ngene_vopen *vopen)
+{
+	int res = 0;
+
+	switch (vopen->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		res = RESOURCE_VIDEO;
+		break;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		res = RESOURCE_VBI;
+		break;
+	default:
+		break;
+	}
+	return res;
+}
+
+static int ngene_try_fmt(struct ngene_vopen *vopen, struct ngene_channel *chan,
+			 struct v4l2_format *f)
+{
+	switch (f->type) {
+
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	{
+		const struct ngene_format *fmt;
+		enum v4l2_field field;
+		unsigned int maxw, maxh;
+		int maxLinesPerField;
+
+		fmt = ngene_formats;
+		if (NULL == fmt)
+			return -EINVAL;
+
+		/* fixup format */
+		maxw  = chan->tvnorms[chan->tvnorm].swidth;
+		maxLinesPerField = chan->tvnorms[chan->tvnorm].sheight;
+		maxh  = maxLinesPerField;
+		field = f->fmt.pix.field;
+
+		if (V4L2_FIELD_ANY == field)
+			field = (f->fmt.pix.height > maxh / 2)
+				? V4L2_FIELD_INTERLACED : V4L2_FIELD_BOTTOM;
+
+		if (V4L2_FIELD_SEQ_BT == field)
+			field = V4L2_FIELD_SEQ_TB;
+
+		/* update data for the application */
+		f->fmt.pix.field = field;
+		if (f->fmt.pix.width < 48)
+			f->fmt.pix.width = 48;
+		if (f->fmt.pix.height < 32)
+			f->fmt.pix.height = 32;
+		if (f->fmt.pix.width > maxw)
+			f->fmt.pix.width = maxw;
+		if (f->fmt.pix.height > maxh)
+			f->fmt.pix.height = maxh;
+		f->fmt.pix.width &= ~0x03;
+		f->fmt.pix.bytesperline =
+			(f->fmt.pix.width * fmt->depth) >> 3;
+		f->fmt.pix.sizeimage =
+			f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+		return 0;
+	}
+
+	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+		return -EINVAL;
+
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		return 0;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+/****************************************************************************/
+/* Analog driver stuff ******************************************************/
+/****************************************************************************/
+
+static int check_alloc_res(struct ngene_channel *channel,
+			   struct ngene_vopen *vopen, int bit)
+{
+	if (vopen->resources & bit)
+		/* have it already allocated */
+		return 1;
+
+	/* is it free? */
+	down(&channel->reslock);
+	if (channel->resources & bit) {
+		/* no, someone else uses it */
+		up(&channel->reslock);
+		return 0;
+	}
+	/* it's free, grab it */
+	vopen->resources |= bit;
+	channel->resources |= bit;
+	up(&channel->reslock);
+	return 1;
+}
+
+static int check_res(struct ngene_vopen *vopen, int bit)
+{
+	return vopen->resources & bit;
+}
+
+static int locked_res(struct ngene_channel *chan, int bit)
+{
+	return chan->resources & bit;
+}
+
+static void free_res(struct ngene_channel *channel,
+		     struct ngene_vopen *vopen, int bits)
+{
+	down(&channel->reslock);
+	vopen->resources &= ~bits;
+	channel->resources &= ~bits;
+	up(&channel->reslock);
+}
+
+/****************************************************************************/
+/* MISC HELPERS *************************************************************/
+/****************************************************************************/
+
+static int ngene_g_fmt(struct ngene_vopen *vopen, struct v4l2_format *f)
+{
+	if (!vopen->fmt)
+		vopen->fmt = ngene_formats;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
+		f->fmt.pix.width        = vopen->width;
+		f->fmt.pix.height       = vopen->height;
+		f->fmt.pix.field        = vopen->vbuf_q.field;
+		f->fmt.pix.pixelformat  = vopen->fmt->fourcc;
+		f->fmt.pix.bytesperline = (f->fmt.pix.width * 16) >> 3;
+		f->fmt.pix.sizeimage    =
+			f->fmt.pix.height * f->fmt.pix.bytesperline;
+		return 0;
+
+	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+		memset(&f->fmt.win, 0, sizeof(struct v4l2_window));
+		return 0;
+		f->fmt.win.w     = vopen->ov.w;
+		f->fmt.win.field = vopen->ov.field;
+		return 0;
+
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		return -EINVAL;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ngene_switch_type(struct ngene_vopen *vopen, enum v4l2_buf_type type)
+{
+	struct videobuf_queue *q = ngene_queue(vopen);
+	int res = ngene_resource(vopen);
+
+	if (check_res(vopen, res))
+		return -EBUSY;
+	if (videobuf_queue_is_busy(q))
+		return -EBUSY;
+	vopen->type = type;
+	return 0;
+}
+
+static int ngene_s_fmt(struct ngene_vopen *vopen, struct ngene_channel *chan,
+		       struct v4l2_format *f)
+{
+	int retval;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	{
+		const struct ngene_format *fmt;
+		retval = ngene_try_fmt(vopen, chan, f);
+		if (0 != retval)
+			return retval;
+
+		retval = ngene_switch_type(vopen, f->type);
+		if (0 != retval)
+			return retval;
+		fmt = ngene_formats;
+
+		if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV)
+			return -EINVAL;
+		/* update our state informations */
+		mutex_lock(&vopen->vbuf_q.lock);
+		vopen->fmt          = fmt;
+		vopen->vbuf_q.field = f->fmt.pix.field;
+		vopen->vbuf_q.last  = V4L2_FIELD_INTERLACED;
+		vopen->width        = f->fmt.pix.width;
+		vopen->height       = f->fmt.pix.height;
+		chan->init.fmt      = fmt;
+		chan->init.width    = f->fmt.pix.width;
+		chan->init.height   = f->fmt.pix.height;
+		mutex_unlock(&vopen->vbuf_q.lock);
+
+		return 0;
+	}
+	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+		return -EINVAL;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		return -EINVAL;
+	default:
+		return -EINVAL;
+	}
+}
+
+/****************************************************************************/
+/* SG support ***************************************************************/
+/****************************************************************************/
+
+static inline enum km_type ngene_kmap_type(int out)
+{
+	return ngene_km_types[(in_softirq() ? 2 : 0) + out];
+}
+
+static inline void *ngene_kmap(struct page *page, int out)
+{
+	return kmap_atomic(page, ngene_kmap_type(out));
+}
+
+static inline void ngene_kunmap(void *vaddr, int out)
+{
+	kunmap_atomic(vaddr, ngene_kmap_type(out));
+}
+
+struct scatter_walk {
+	struct scatterlist *sg;
+	struct page        *page;
+	void               *data;
+	unsigned int        len_this_page;
+	unsigned int        len_this_segment;
+	unsigned int        offset;
+};
+
+static inline struct scatterlist *sg_next(struct scatterlist *sg)
+{
+	return sg + 1;
+}
+
+void *scatterwalk_whichbuf(struct scatter_walk *walk, unsigned int nbytes)
+{
+	if (nbytes <= walk->len_this_page &&
+	    (((unsigned long)walk->data) &
+	     (PAGE_CACHE_SIZE - 1)) + nbytes <= PAGE_CACHE_SIZE)
+		return walk->data;
+	else
+		return walk->data;
+}
+
+void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg)
+{
+	unsigned int rest_of_page;
+
+	walk->sg = sg;
+	walk->page = sg->page;
+	walk->len_this_segment = sg->length;
+	rest_of_page = PAGE_CACHE_SIZE - (sg->offset & (PAGE_CACHE_SIZE - 1));
+	walk->len_this_page = min(sg->length, rest_of_page);
+	walk->offset = sg->offset;
+}
+
+void scatterwalk_map(struct scatter_walk *walk, int out)
+{
+	walk->data = ngene_kmap(walk->page, out) + walk->offset;
+}
+
+static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
+				 unsigned int more)
+{
+	/* walk->data may be pointing the first byte of the next page;
+	   however, we know we transfered at least one byte.  So,
+	   walk->data - 1 will be a virtual address in the mapped page. */
+
+	if (out)
+		flush_dcache_page(walk->page);
+
+	if (more) {
+		walk->len_this_segment -= walk->len_this_page;
+
+		if (walk->len_this_segment) {
+			walk->page++;
+			walk->len_this_page = min(walk->len_this_segment,
+						  (unsigned)PAGE_CACHE_SIZE);
+			walk->offset = 0;
+		} else {
+			scatterwalk_start(walk, sg_next(walk->sg));
+		}
+	}
+}
+
+void scatterwalk_done(struct scatter_walk *walk, int out, int more)
+{
+	ngene_kunmap(walk->data, out);
+	if (walk->len_this_page == 0 || !more)
+		scatterwalk_pagedone(walk, out, more);
+}
+
+/*
+ * Do not call this unless the total length of all of the fragments
+ * has been verified as multiple of the block size.
+ */
+int scatterwalk_copychunks(struct scatter_walk *walk, size_t nbytes, int out)
+{
+	walk->offset += nbytes;
+	walk->len_this_page -= nbytes;
+	walk->len_this_segment -= nbytes;
+	return 0;
+}
+
+static void *vid_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
+{
+	struct ngene_channel *chan = priv;
+	struct ngene_buffer *item;
+	int wstrich, hstrich;
+	u8 *odd, *even;
+	u32 bpl = chan->tvnorms[chan->tvnorm].swidth * 2;
+
+	struct scatter_walk walk_out;
+	const unsigned int bsize = PAGE_SIZE;
+	unsigned int nbytes;
+	int rest_of_buffer, ah, rwstrich;
+
+	spin_lock(&chan->s_lock);
+
+	if (list_empty(&chan->capture)) {
+		chan->evenbuffer = NULL;
+		goto out;
+	}
+	item = list_entry(chan->capture.next, struct ngene_buffer, vb.queue);
+
+	if (chan->tvnorms[chan->tvnorm].sheight == 1080)
+		buf += 3840;
+
+	odd = buf;
+
+	hstrich = item->vb.height;
+	if (hstrich > chan->tvnorms[chan->tvnorm].sheight)
+		hstrich = chan->tvnorms[chan->tvnorm].sheight;
+
+	wstrich = item->vb.width;
+	if (wstrich > chan->tvnorms[chan->tvnorm].swidth)
+		wstrich = chan->tvnorms[chan->tvnorm].swidth;
+	wstrich <<= 1;
+
+	if (flags & BEF_EVEN_FIELD) {
+		chan->evenbuffer = buf;
+		if (chan->lastbufferflag) {
+			chan->lastbufferflag = 0;
+			if (chan->tvnorms[chan->tvnorm].sheight == 576) {
+				memcpy(buf + 413280, BlackLine, 1440);
+				memcpy(buf + 411840, BlackLine, 1440);
+			}
+			goto out;
+		}
+	}
+	chan->lastbufferflag = 1;
+	if (chan->evenbuffer)
+		even = chan->evenbuffer;
+	else
+		even = odd;
+	if (chan->tvnorms[chan->tvnorm].sheight == 576) {
+		memcpy(odd + 413280, BlackLine, 1440);
+		memcpy(odd + 411840, BlackLine, 1440);
+	}
+	nbytes = item->vb.dma.sglen * PAGE_SIZE;
+	scatterwalk_start(&walk_out, item->vb.dma.sglist);
+	ah = 0;
+	rwstrich = wstrich;
+	do {
+		u8 *dst_p;
+
+		rest_of_buffer = bsize;
+		scatterwalk_map(&walk_out, 1);
+		dst_p = scatterwalk_whichbuf(&walk_out, bsize);
+		nbytes -= bsize;
+		scatterwalk_copychunks(&walk_out, bsize, 1);
+
+		while (rest_of_buffer > 0 && ah < hstrich) {
+			if (rest_of_buffer >= rwstrich) {
+				if (ah % 2 == 0) {
+					memcpy(walk_out.data +
+					       (bsize - rest_of_buffer),
+					       odd, rwstrich);
+					odd += bpl - (wstrich - rwstrich);
+				} else {
+					memcpy(walk_out.data +
+					       (bsize - rest_of_buffer),
+					       even, rwstrich);
+					even += bpl - (wstrich - rwstrich);
+				}
+				rest_of_buffer -= rwstrich;
+				ah++;
+				rwstrich = wstrich;
+			} else {
+				if (ah % 2 == 0) {
+					memcpy(walk_out.data +
+					       (bsize - rest_of_buffer),
+					       odd, rest_of_buffer);
+					odd += rest_of_buffer;
+				} else {
+					memcpy(walk_out.data +
+					       (bsize - rest_of_buffer),
+					       even, rest_of_buffer);
+					even += rest_of_buffer;
+				}
+				rwstrich -= rest_of_buffer;
+				rest_of_buffer = 0;
+			}
+		}
+		scatterwalk_done(&walk_out, 1, nbytes);
+	} while (nbytes && ah < hstrich);
+
+	{
+		struct timeval ts;
+		do_gettimeofday(&ts);
+		list_del(&item->vb.queue);
+		item->vb.state = STATE_DONE;
+		item->vb.ts = ts;
+		wake_up(&item->vb.done);
+		chan->evenbuffer = NULL;
+	}
+
+out:
+	spin_unlock(&chan->s_lock);
+	return 0;
+}
+
+static void *snd_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
+{
+	struct ngene_channel *chan = priv;
+	struct mychip *mychip = chan->mychip;
+
+	if (chan->audiomute == 0)
+		memcpy(chan->soundbuffer, (u8 *) buf, MAX_AUDIO_BUFFER_SIZE);
+	else
+		memset(chan->soundbuffer, 0, MAX_AUDIO_BUFFER_SIZE);
+
+	if (mychip->substream != NULL) {
+		if (chan->sndbuffflag == 0)
+			chan->sndbuffflag = 1;
+		else
+			chan->sndbuffflag = 0;
+		spin_unlock(&mychip->lock);
+		snd_pcm_period_elapsed(mychip->substream);
+		spin_lock(&mychip->lock);
+	}
+	return 0;
+}
+
+static void set_analog_transfer(struct ngene_channel *chan, int state)
+{
+	struct ngene_channel *ch;
+	u8 flags = 0;
+
+	ch = &chan->dev->channel[chan->number + 2];
+	/* printk(KERN_INFO "set_analog_transfer %d\n", state); */
+
+	if (1) { /* chan->tun_dec_rdy == 1){ */
+		if (state) {
+
+			chan->Capture1Length =
+				chan->tvnorms[chan->tvnorm].swidth *
+				chan->tvnorms[chan->tvnorm].sheight;
+			if (chan->tvnorms[chan->tvnorm].sheight == 576)
+				chan->nLines = 287;
+			else if (chan->tvnorms[chan->tvnorm].sheight == 1080)
+				chan->nLines = 541;
+			else
+				chan->nLines =
+					chan->tvnorms[chan->tvnorm].sheight / 2;
+			chan->nBytesPerLine =
+				chan->tvnorms[chan->tvnorm].swidth * 2;
+			if (chan->dev->card_info->io_type[chan->number] ==
+			    NGENE_IO_HDTV) {
+				chan->itumode = 2;
+				flags = SFLAG_ORDER_LUMA_CHROMA;
+			} else {
+				chan->itumode = 0;
+				flags = SFLAG_ORDER_LUMA_CHROMA;
+			}
+			chan->pBufferExchange = vid_exchange;
+			ngene_command_stream_control(chan->dev, chan->number,
+						     0x80,
+						     SMODE_VIDEO_CAPTURE,
+						     flags);
+
+			ch->Capture1Length = MAX_AUDIO_BUFFER_SIZE;
+			ch->pBufferExchange = snd_exchange;
+			ngene_command_stream_control(ch->dev, ch->number,
+						     0x80,
+						     SMODE_AUDIO_CAPTURE, 0);
+			ch->soundstreamon = 1;
+		} else {
+			ngene_command_stream_control(chan->dev, chan->number,
+						     0, 0, 0);
+			ngene_command_stream_control(ch->dev, ch->number,
+						     0, 0, 0);
+			ch->soundstreamon = 0;
+		}
+	}
+}
+
+static int ngene_analog_start_feed(struct ngene_channel *chan)
+{
+	int freerunmode = 1;
+	struct i2c_adapter *adapter = &chan->i2c_adapter;
+
+	if (chan->users == 0 && chan->number < 2) {
+		chan->evenbuffer = NULL;
+		chan->users = 1;
+		i2c_clients_command(adapter, IOCTL_MIC_DEC_FREESYNC,
+				    &freerunmode);
+		msleep(25);
+		set_analog_transfer(chan, 1);
+		msleep(25);
+		freerunmode = 0;
+		i2c_clients_command(adapter, IOCTL_MIC_DEC_FREESYNC,
+				    &freerunmode);
+	}
+	return chan->users;
+}
+
+static int ngene_analog_stop_feed(struct ngene_channel *chan)
+{
+	int freerunmode = 1;
+	struct i2c_adapter *adapter = &chan->i2c_adapter;
+	if (chan->users == 1 && chan->number < 2) {
+		chan->users = 0;
+		i2c_clients_command(adapter,
+				    IOCTL_MIC_DEC_FREESYNC, &freerunmode);
+		msleep(20);
+		set_analog_transfer(chan, 0);
+	}
+	return 0;
+}
+
+/****************************************************************************/
+/* V4L2 API interface *******************************************************/
+/****************************************************************************/
+
+void ngene_dma_free(struct videobuf_queue *q,
+		    struct ngene_channel *chan, struct ngene_buffer *buf)
+{
+	videobuf_waiton(&buf->vb, 0, 0);
+	videobuf_dma_unmap(q, &buf->vb.dma);
+	videobuf_dma_free(&buf->vb.dma);
+	buf->vb.state = STATE_NEEDS_INIT;
+}
+
+static int ngene_prepare_buffer(struct videobuf_queue *q,
+				struct ngene_channel *chan,
+				struct ngene_buffer *buf,
+				const struct ngene_format *fmt,
+				unsigned int width, unsigned int height,
+				enum v4l2_field field)
+{
+	int rc = 0;
+	/* check settings */
+	if (NULL == fmt)
+		return -EINVAL;
+
+	if (width < 48 || height < 32)
+		return -EINVAL;
+
+	buf->vb.size = (width * height * 16 /* fmt->depth */) >> 3;
+	if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	/* alloc + fill struct ngene_buffer (if changed) */
+	if (buf->vb.width != width || buf->vb.height != height ||
+	    buf->vb.field != field || buf->fmt != fmt ||
+	    buf->tvnorm != chan->tvnorm) {
+
+		buf->vb.width  = width;
+		buf->vb.height = height;
+		buf->vb.field  = field;
+		buf->tvnorm    = chan->tvnorm;
+		buf->fmt       = fmt;
+
+		ngene_dma_free(q, chan, buf);
+	}
+
+	if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	if (buf->vb.field == 0)
+		buf->vb.field = V4L2_FIELD_INTERLACED;
+
+	if (STATE_NEEDS_INIT == buf->vb.state) {
+		buf->vb.width  = width;
+		buf->vb.height = height;
+		buf->vb.field  = field;
+		buf->tvnorm    = chan->tvnorm;
+		buf->fmt       = fmt;
+
+		rc = videobuf_iolock(q, &buf->vb, &chan->fbuf);
+		if (0 != rc)
+			goto fail;
+	}
+	if (!buf->vb.dma.bus_addr)
+		videobuf_dma_sync(q, &buf->vb.dma);
+	buf->vb.state = STATE_PREPARED;
+	return 0;
+
+fail:
+	ngene_dma_free(q, chan, buf);
+	return rc;
+
+}
+
+static int buffer_setup(struct videobuf_queue *q,
+			unsigned int *count, unsigned int *size)
+{
+	struct ngene_vopen *vopen = q->priv_data;
+	*size = 2 * vopen->width * vopen->height;
+	if (0 == *count)
+		*count = gbuffers;
+	while (*size * *count > gbuffers * gbufsize)
+		(*count)--;
+	q->field = V4L2_FIELD_INTERLACED;
+	q->last = V4L2_FIELD_INTERLACED;
+	return 0;
+}
+
+static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+			  enum v4l2_field field)
+{
+	struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
+	struct ngene_vopen *vopen = q->priv_data;
+	return ngene_prepare_buffer(q, vopen->ch, buf, vopen->fmt,
+				    vopen->width, vopen->height, field);
+}
+
+static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
+	struct ngene_vopen *vopen = q->priv_data;
+	ngene_dma_free(q, vopen->ch, buf);
+}
+
+static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	struct ngene_buffer *buf = container_of(vb, struct ngene_buffer, vb);
+	struct ngene_vopen *vopen = q->priv_data;
+	struct ngene_channel *chan = vopen->ch;
+
+	buf->vb.state = STATE_QUEUED;
+	list_add_tail(&buf->vb.queue, &chan->capture);
+}
+
+static struct videobuf_queue_ops ngene_video_qops = {
+	.buf_setup    = buffer_setup,
+	.buf_prepare  = buffer_prepare,
+	.buf_queue    = buffer_queue,
+	.buf_release  = buffer_release,
+};
+
+int video_open(struct inode *inode, struct file *flip)
+{
+	struct ngene_vopen *vopen = NULL;
+	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	struct video_device *vd = video_devdata(flip);
+	struct ngene_channel *chan = my_video_get_drvdata(vd);
+
+	vopen = kmalloc(sizeof(*vopen), GFP_KERNEL);
+	if (!vopen)
+		return -ENOMEM;
+	memset(vopen, 0, sizeof(*vopen));
+	flip->private_data = vopen;
+	v4l2_prio_open(&chan->prio, &vopen->prio);
+	vopen->ch = chan;
+	vopen->picxcount = 0;
+	vopen->type = type;
+	videobuf_queue_init(&vopen->vbuf_q, &ngene_video_qops,
+			    chan->dev->pci_dev, &chan->s_lock,
+			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
+			    V4L2_FIELD_INTERLACED,
+			    sizeof(struct ngene_buffer), vopen);
+
+	vopen->ovfmt = ngene_formats;
+	chan->videousers++;
+	if (chan->dev->card_info->switch_ctrl)
+		chan->dev->card_info->switch_ctrl(chan, 2, 1);
+	return 0;
+}
+
+int video_close(struct inode *inode, struct file *filp)
+{
+	struct ngene_vopen *vopen = filp->private_data;
+	struct ngene_channel *chan = vopen->ch;
+
+	chan->videousers--;
+	if (!chan->videousers) {
+		if (chan->dev->card_info->switch_ctrl)
+			chan->dev->card_info->switch_ctrl(chan, 2, 0);
+		ngene_analog_stop_feed(chan);
+	}
+	videobuf_mmap_free(&vopen->vbuf_q);
+	v4l2_prio_close(&chan->prio, &vopen->prio);
+	filp->private_data = NULL;
+	kfree(vopen);
+	return 0;
+}
+
+/****************************************************************************/
+
+static int vid_do_ioctl(struct inode *inode, struct file *file,
+			unsigned int cmd, void *parg)
+{
+	struct ngene_vopen *vopen = file->private_data;
+	struct ngene_channel *chan = vopen->ch;
+	struct ngene *dev = chan->dev;
+	struct i2c_adapter *adap = &chan->i2c_adapter;
+	int retval = 0;
+	int err = 0;
+
+	switch (cmd) {
+
+	case VIDIOC_S_CTRL:
+	{
+		struct v4l2_control *c = parg;
+
+		err = v4l2_prio_check(&chan->prio, &vopen->prio);
+		if (err)
+			return err;
+
+		if (c->id == V4L2_CID_AUDIO_MUTE) {
+			if (c->value)
+				(dev->channel[chan->number + 2]).audiomute = 1;
+			else
+				(dev->channel[chan->number + 2]).audiomute = 0;
+			return 0;
+		}
+		if (c->value != V4L2_CID_AUDIO_MUTE)
+			ngene_analog_stop_feed(chan);
+		i2c_clients_command(adap, cmd, parg);
+		return 0;
+	}
+
+	case VIDIOC_S_TUNER:
+	{
+		err = v4l2_prio_check(&chan->prio, &vopen->prio);
+		if (err != 0)
+			return err;
+		i2c_clients_command(adap, cmd, parg);
+		return 0;
+	}
+
+	case VIDIOC_S_FREQUENCY:
+	{
+		struct v4l2_frequency *f = parg;
+		u8 drxa = dev->card_info->demoda[chan->number];
+
+		if (chan->fe && chan->fe->ops.tuner_ops.set_frequency)
+			chan->fe->ops.tuner_ops.
+				set_frequency(chan->fe, f->frequency * 62500);
+		if (drxa)
+			;
+	}
+
+	case VIDIOC_S_INPUT:
+	{
+		err = v4l2_prio_check(&chan->prio, &vopen->prio);
+		if (err != 0)
+			return err;
+		i2c_clients_command(adap, cmd, parg);
+		return 0;
+	}
+
+	case VIDIOC_G_STD:
+	{
+		v4l2_std_id *id = parg;
+		*id = chan->tvnorms[chan->tvnorm].v4l2_id;
+		return 0;
+	}
+
+	case VIDIOC_S_STD:
+	{
+		v4l2_std_id *id = parg;
+		unsigned int i;
+
+		err = v4l2_prio_check(&chan->prio, &vopen->prio);
+		if (err != 0)
+			return err;
+		ngene_analog_stop_feed(chan);
+		i2c_clients_command(adap, cmd, parg);
+		for (i = 0; i < chan->tvnorm_num; i++)
+			if (*id & chan->tvnorms[i].v4l2_id)
+				break;
+		if (i == chan->tvnorm_num)
+			return -EINVAL;
+
+		chan->tvnorm = i;
+		mdelay(50);
+		ngene_analog_start_feed(chan);
+		return 0;
+	}
+
+	case VIDIOC_G_FREQUENCY:
+	case VIDIOC_G_INPUT:
+	case VIDIOC_S_AUDIO:
+	case VIDIOC_G_AUDIO:
+	case VIDIOC_ENUMAUDIO:
+	case VIDIOC_S_MODULATOR:
+	case VIDIOC_G_MODULATOR:
+	case VIDIOC_G_CTRL:
+	{
+		i2c_clients_command(adap, cmd, parg);
+		return 0;
+	}
+
+	case VIDIOC_G_TUNER:
+	{
+		struct v4l2_tuner *tuner = parg;
+		if (tuner->index != 0)
+			return -EINVAL;
+		i2c_clients_command(adap, cmd, parg);
+
+		if (chan->fe && chan->fe->ops.tuner_ops.get_status) {
+			u32 status;
+
+			chan->fe->ops.tuner_ops.get_status(chan->fe, &status);
+			tuner->signal = status;
+		}
+		return 0;
+	}
+
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *c = parg;
+		int i;
+
+		if ((c->id <  V4L2_CID_BASE ||
+		     c->id >= V4L2_CID_LASTP1) &&
+		    (c->id <  V4L2_CID_PRIVATE_BASE ||
+		     c->id >= V4L2_CID_PRIVATE_LASTP1))
+			return -EINVAL;
+		for (i = 0; i < NGENE_CTLS; i++)
+			if (ngene_ctls[i].id == c->id)
+				break;
+		if (i == NGENE_CTLS) {
+			*c = no_ctl;
+			return 0;
+		}
+		*c = ngene_ctls[i];
+		return 0;
+	}
+
+	case VIDIOC_G_FMT:
+	{
+		struct v4l2_format *f = parg;
+		ngene_g_fmt(vopen, f);
+	}
+
+	case VIDIOC_S_FMT:
+	{
+		struct v4l2_format *f = parg;
+
+		ngene_analog_stop_feed(chan);
+		return ngene_s_fmt(vopen, chan, f);
+	}
+
+	case VIDIOC_ENUM_FMT:
+	{
+		struct v4l2_fmtdesc *f = parg;
+		enum v4l2_buf_type type;
+		unsigned int i;
+		int index;
+
+		type = f->type;
+		if (V4L2_BUF_TYPE_VBI_CAPTURE == type) {
+			/* vbi
+			index = f->index;
+			if (0 != index)
+				return -EINVAL;
+			memset(f, 0, sizeof(*f));
+			f->index       = index;
+			f->type        = type;
+			f->pixelformat = V4L2_PIX_FMT_GREY;
+			strcpy(f->description, "vbi data"); */
+			return EINVAL;
+		}
+
+		/* video capture + overlay */
+		index = -1;
+		for (i = 0; i < NGENE_FORMATS; i++) {
+			if (ngene_formats[i].fourcc != -1)
+				index++;
+			if ((unsigned int)index == f->index)
+				break;
+		}
+		if (NGENE_FORMATS == i)
+			return -EINVAL;
+
+		switch (f->type) {
+		case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+			break;
+		case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+			/* dprintk(KERN_DEBUG
+				   "Video Overlay not supported yet.\n"); */
+			return -EINVAL;
+			break;
+		default:
+			return -EINVAL;
+		}
+		memset(f, 0, sizeof(*f));
+		f->index       = index;
+		f->type        = type;
+		f->pixelformat = ngene_formats[i].fourcc;
+		strlcpy(f->description,	ngene_formats[i].name,
+			sizeof(f->description));
+		return 0;
+
+	}
+
+	case VIDIOC_QUERYSTD:
+	{
+		v4l2_std_id *id = parg;
+		*id = V4L2_STD_625_50 | V4L2_STD_525_60;
+		return 0;
+	}
+
+	case VIDIOC_ENUMSTD:
+	{
+		struct v4l2_standard *e = parg;
+		unsigned int index = e->index;
+
+		if (index >= chan->tvnorm_num)
+			return -EINVAL;
+		v4l2_video_std_construct(e, chan->tvnorms[e->index].v4l2_id,
+					 chan->tvnorms[e->index].name);
+		e->index = index;
+		return 0;
+	}
+
+	case VIDIOC_QUERYCAP:
+	{
+		static char driver[] = {'n', 'G', 'e', 'n', 'e', '\0'};
+		static char card[] = {'M', 'k', '4', 'x', 'x', '\0'};
+		struct v4l2_capability *cap = parg;
+
+		memset(cap, 0, sizeof(*cap));
+		if (dev->nr == 0)
+			card[3] = '0';
+		else
+			card[3] = '1';
+		if (chan->number)
+			card[4] = 'a';
+		else
+			card[4] = 'b';
+		strlcpy(cap->driver, driver, sizeof(cap->driver));
+		strlcpy(cap->card, card, sizeof(cap->card));
+		cap->bus_info[0] = 0;
+		cap->version = KERNEL_VERSION(0, 8, 1);
+		cap->capabilities = V4L2_CAP_VIDEO_CAPTURE|
+			V4L2_CAP_TUNER|V4L2_CAP_AUDIO|
+			V4L2_CAP_READWRITE|V4L2_CAP_STREAMING;
+		return 0;
+	}
+
+	case VIDIOC_ENUMINPUT:
+	{
+		static char *inputname[2] = {
+			"AnalogTuner",
+			"S-Video"
+		};
+
+		struct v4l2_input *i = parg;
+		unsigned int index;
+		index = i->index;
+
+		if (index > 1)
+			return -EINVAL;
+
+		memset(i, 0, sizeof(*i));
+		i->index = index;
+		strlcpy(i->name, inputname[index], sizeof(i->name));
+
+		i->type = index ? V4L2_INPUT_TYPE_CAMERA :
+			V4L2_INPUT_TYPE_TUNER;
+		i->audioset = 0;
+		i->tuner = 0;
+		i->std = V4L2_STD_PAL_BG | V4L2_STD_NTSC_M;
+		i->status = 0;/* V4L2_IN_ST_NO_H_LOCK; */
+		return 0;
+	}
+
+	case VIDIOC_G_PARM:
+		return -EINVAL;
+
+	case VIDIOC_S_PARM:
+		return -EINVAL;
+
+	case VIDIOC_G_PRIORITY:
+	{
+		enum v4l2_priority *prio = parg;
+		*prio = v4l2_prio_max(&chan->prio);
+		return 0;
+	}
+
+	case VIDIOC_S_PRIORITY:
+	{
+		enum v4l2_priority *prio = parg;
+		return v4l2_prio_change(&chan->prio, &vopen->prio, *prio);
+		return 0;
+	}
+
+	case VIDIOC_CROPCAP:
+		return -EINVAL;
+
+	case VIDIOC_G_CROP:
+		return -EINVAL;
+
+	case VIDIOC_S_CROP:
+		return -EINVAL;
+
+	case VIDIOC_G_FBUF:
+	{
+		struct v4l2_framebuffer *fb = parg;
+
+		*fb = chan->fbuf;
+		fb->capability = 0;
+		if (vopen->ovfmt)
+			fb->fmt.pixelformat = vopen->ovfmt->fourcc;
+		return 0;
+	}
+
+	case VIDIOC_REQBUFS:
+		return videobuf_reqbufs(ngene_queue(vopen), parg);
+
+	case VIDIOC_QUERYBUF:
+		return videobuf_querybuf(ngene_queue(vopen), parg);
+
+	case VIDIOC_QBUF:
+		return videobuf_qbuf(ngene_queue(vopen), parg);
+
+	case VIDIOC_DQBUF:
+		return videobuf_dqbuf(ngene_queue(vopen), parg,
+				      file->f_flags & O_NONBLOCK);
+
+	case VIDIOC_S_FBUF:
+	{
+		/* ngene_analog_stop_feed(chan); */
+		struct v4l2_framebuffer *fb = parg;
+		const struct ngene_format *fmt;
+
+		if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+			return -EPERM;
+
+		/* check args */
+		fmt = ngene_formats; /*format_by_fourcc(fb->fmt.pixelformat);*/
+		if (NULL == fmt)
+			return -EINVAL;
+
+		if (0 == (fmt->flags & 0x02 /*FORMAT_FLAGS_PACKED*/))
+			return -EINVAL;
+
+		mutex_lock(&vopen->vbuf_q.lock);
+		retval = -EINVAL;
+
+		if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
+			int maxLinesPerField;
+
+			if (fb->fmt.width >
+			    chan->tvnorms[chan->tvnorm].swidth)
+				goto vopen_unlock_and_return;
+			maxLinesPerField = chan->tvnorms[chan->tvnorm].sheight;
+			if (fb->fmt.height > maxLinesPerField)
+				goto vopen_unlock_and_return;
+		}
+
+		/* ok, accept it */
+		chan->fbuf.base       = fb->base;
+		chan->fbuf.fmt.width  = fb->fmt.width;
+		chan->fbuf.fmt.height = fb->fmt.height;
+		if (0 != fb->fmt.bytesperline)
+			chan->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
+		else
+			chan->fbuf.fmt.bytesperline =
+				chan->fbuf.fmt.width * fmt->depth / 8;
+
+		retval = 0;
+		vopen->ovfmt = fmt;
+		chan->init.ovfmt = fmt;
+
+vopen_unlock_and_return:
+		mutex_unlock(&vopen->vbuf_q.lock);
+		return retval;
+
+	}
+
+	case VIDIOC_ENUMOUTPUT:
+		return -EINVAL;
+
+	case VIDIOC_TRY_FMT:
+	{
+		struct v4l2_format *f = parg;
+		return ngene_try_fmt(vopen, chan, f);
+
+	}
+
+	case VIDIOC_STREAMON:
+	{
+		int res = ngene_resource(vopen);
+		if (!check_alloc_res(chan, vopen, res))
+			return -EBUSY;
+		ngene_analog_start_feed(chan);
+		return videobuf_streamon(ngene_queue(vopen));
+	}
+
+	case VIDIOC_STREAMOFF:
+	{
+		int res = ngene_resource(vopen);
+		int retval = videobuf_streamoff(ngene_queue(vopen));
+		ngene_analog_stop_feed(chan);
+		if (retval < 0)
+			return retval;
+
+		free_res(chan, vopen, res);
+		return 0;
+	}
+
+	case VIDIOC_OVERLAY:
+		return -EINVAL;
+
+	case VIDIOCGFBUF:
+	{
+		struct video_buffer *vb = parg;
+
+		memset(vb, 0, sizeof(*vb));
+		return 0;
+	}
+
+	default:
+		err = -EINVAL;
+		break;
+	}
+	return err;
+}
+
+/*
+static int vid_ioctl(struct inode *inode, struct file *file,
+			   unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, vid_do_ioctl);
+}
+*/
+static unsigned int video_fix_command(unsigned int cmd)
+{
+	switch (cmd) {
+	}
+	return cmd;
+}
+
+static int vid_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long arg)
+{
+	void *parg = (void *)arg, *pbuf = NULL;
+	char  buf[64];
+	int   res = -EFAULT;
+	cmd = video_fix_command(cmd);
+
+	if (_IOC_DIR(cmd) & _IOC_WRITE) {
+		parg = buf;
+		if (_IOC_SIZE(cmd) > sizeof(buf)) {
+			pbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
+			if (!pbuf)
+				return -ENOMEM;
+			parg = pbuf;
+		}
+		if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
+			goto error;
+	}
+	res = vid_do_ioctl(inode, file, cmd, parg);
+	if (res < 0)
+		goto error;
+	if (_IOC_DIR(cmd) & _IOC_READ)
+		if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
+			res = -EFAULT;
+error:
+	kfree(pbuf);
+	return res;
+}
+
+static int ngene_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct ngene_vopen *vopen = file->private_data;
+	return videobuf_mmap_mapper(ngene_queue(vopen), vma);
+}
+
+#define MAGIC_BUFFER 0x20040302
+void *my_videobuf_alloc(unsigned int size)
+{
+	struct videobuf_buffer *vb;
+
+	vb = kmalloc(size, GFP_KERNEL);
+	if (NULL != vb) {
+		memset(vb, 0, size);
+		videobuf_dma_init(&vb->dma);
+		init_waitqueue_head(&vb->done);
+		vb->magic = MAGIC_BUFFER;
+	}
+	return vb;
+}
+
+static ssize_t driver_read(struct file *file, char *user,
+			   size_t count, loff_t *offset)
+{
+	char __user *data = user;
+	struct ngene_channel *chan;
+	int retval = 0;
+	struct videobuf_queue *q;
+	struct ngene_vopen *vopen = file->private_data;
+	int nonblocking = file->f_flags & O_NONBLOCK;
+	enum v4l2_field field;
+	unsigned long flags;
+	unsigned size, nbufs, bytes;
+
+	if (!vopen)
+		return 0;
+
+	chan = vopen->ch;
+	q = &vopen->vbuf_q;
+
+	mutex_lock(&q->lock);
+	nbufs = 1;
+	size = 0;
+	q->ops->buf_setup(q, &nbufs, &size);
+
+	if (NULL == q->read_buf) {
+		/* need to capture a new frame */
+		retval = -ENOMEM;
+		q->read_buf = my_videobuf_alloc(q->msize);
+		if (NULL == q->read_buf)
+			goto done;
+
+		q->read_buf->memory = V4L2_MEMORY_USERPTR;
+		field = V4L2_FIELD_INTERLACED;
+		retval = q->ops->buf_prepare(q, q->read_buf, field);
+		if (0 != retval) {
+			kfree(q->read_buf);
+			q->read_buf = NULL;
+			goto done;
+		}
+
+		spin_lock_irqsave(q->irqlock, flags);
+		q->ops->buf_queue(q, q->read_buf);
+		spin_unlock_irqrestore(q->irqlock, flags);
+		q->read_off = 0;
+	}
+
+	ngene_analog_start_feed(chan);
+	/* wait until capture is done */
+	retval = videobuf_waiton(q->read_buf, nonblocking, 1);
+	if (0 != retval)
+		goto done;
+	videobuf_dma_sync(q, &q->read_buf->dma);
+
+	if (STATE_ERROR == q->read_buf->state) {
+		/* catch I/O errors */
+		q->ops->buf_release(q, q->read_buf);
+		kfree(q->read_buf);
+		q->read_buf = NULL;
+		retval = -EIO;
+		goto done;
+	}
+
+	/* copy to userspace */
+	bytes = count;
+	if (bytes > q->read_buf->size - q->read_off)
+		bytes = q->read_buf->size - q->read_off;
+	retval = -EFAULT;
+
+	if (copy_to_user(data, q->read_buf->dma.vmalloc + q->read_off, bytes))
+		goto done;
+
+	retval = bytes;
+
+	q->read_off += bytes;
+	if (q->read_off == q->read_buf->size) {
+		/* all data copied, cleanup */
+		q->ops->buf_release(q, q->read_buf);
+		kfree(q->read_buf);
+		q->read_buf = NULL;
+	}
+
+done:
+	mutex_unlock(&q->lock);
+
+	ngene_analog_stop_feed(chan);
+
+	return retval;
+}
+
+static unsigned int ngene_poll(struct file *file, poll_table *wait)
+{
+	struct ngene_vopen *vopen = file->private_data;
+	struct ngene_buffer *buf;
+	enum v4l2_field field;
+
+	if (check_res(vopen, RESOURCE_VIDEO)) {
+		/* streaming capture */
+		if (list_empty(&vopen->vbuf_q.stream))
+			return POLLERR;
+		buf = list_entry(vopen->vbuf_q.stream.next,
+				 struct ngene_buffer, vb.stream);
+	} else {
+		/* read() capture */
+		mutex_lock(&vopen->vbuf_q.lock);
+		if (NULL == vopen->vbuf_q.read_buf) {
+			/* need to capture a new frame */
+			if (locked_res(vopen->ch, RESOURCE_VIDEO)) {
+				mutex_unlock(&vopen->vbuf_q.lock);
+				return POLLERR;
+			}
+			vopen->vbuf_q.read_buf =
+				videobuf_alloc(vopen->vbuf_q.msize);
+			if (NULL == vopen->vbuf_q.read_buf) {
+				mutex_unlock(&vopen->vbuf_q.lock);
+				return POLLERR;
+			}
+			vopen->vbuf_q.read_buf->memory = V4L2_MEMORY_USERPTR;
+			field = videobuf_next_field(&vopen->vbuf_q);
+			if (0 !=
+			    vopen->vbuf_q.ops->
+			    buf_prepare(&vopen->vbuf_q,
+					vopen->vbuf_q.read_buf, field)) {
+				mutex_unlock(&vopen->vbuf_q.lock);
+				return POLLERR;
+			}
+			vopen->vbuf_q.ops->buf_queue(&vopen->vbuf_q,
+						     vopen->vbuf_q.read_buf);
+			vopen->vbuf_q.read_off = 0;
+		}
+		mutex_unlock(&vopen->vbuf_q.lock);
+		buf = (struct ngene_buffer *)vopen->vbuf_q.read_buf;
+	}
+
+	poll_wait(file, &buf->vb.done, wait);
+	if (buf->vb.state == STATE_DONE || buf->vb.state == STATE_ERROR)
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+static const struct file_operations ngene_fops = {
+	.owner    = THIS_MODULE,
+	.read     = driver_read,
+	.write    = 0,
+	.open     = video_open,
+	.release  = video_close,
+	.ioctl    = vid_ioctl,
+	.poll     = ngene_poll,
+	.mmap     = ngene_mmap,
+};
+
+static struct video_device ngene_cinfo = {
+	.name     = "analog_Ngene",
+	.type     = VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_SCALES,
+	.fops     = &ngene_fops,
+	.minor    = -1,
+};
+
+void ngene_v4l2_remove(struct ngene_channel *chan)
+{
+	video_unregister_device(chan->v4l_dev);
+}
+
+int ngene_v4l2_init(struct ngene_channel *chan)
+{
+	int ret = 0;
+	struct video_device *v_dev;
+
+	chan->evenbuffer = NULL;
+	chan->dma_on = 0;
+
+	v_dev = video_device_alloc();
+	*v_dev = ngene_cinfo;
+	/* v_dev->dev = &(chan->dev->pci_dev->dev); */
+	v_dev->release = video_device_release;
+	v_dev->minor = -1;
+	video_register_device(v_dev, VFL_TYPE_GRABBER, -1);
+	snprintf(v_dev->name, sizeof(v_dev->name), "AnalognGene%d",
+		 v_dev->minor);
+	chan->v4l_dev = v_dev;
+	chan->minor = v_dev->minor;
+	printk(KERN_INFO "nGene V4L2 device video%d registered.\n",
+	       v_dev->minor);
+
+	v_dev->dev = &chan->device;
+	my_video_set_drvdata(chan->v4l_dev, chan);
+
+	v4l2_prio_init(&chan->prio);
+
+	if (chan->dev->card_info->io_type[chan->number] == NGENE_IO_HDTV) {
+		chan->tvnorms = ngene_tvnorms_hd;
+		chan->tvnorm_num = 1;
+	} else {
+		chan->tvnorms = ngene_tvnorms_sd;
+		chan->tvnorm_num = NGENE_TVNORMS;
+	}
+	chan->tvnorm = 0;
+
+	spin_lock_init(&chan->s_lock);
+	init_MUTEX(&chan->reslock);
+	INIT_LIST_HEAD(&chan->capture);
+	chan->users            = 0;
+	chan->videousers       = 0;
+	chan->init.ov.w.width  = 384;
+	chan->init.ov.w.height = 288;
+	chan->init.fmt         = ngene_formats;
+	chan->init.width       = 384;
+	chan->init.height      = 288;
+	chan->tun_rdy          = 0;
+	chan->dec_rdy          = 0;
+	chan->tun_dec_rdy      = 0;
+	chan->lastbufferflag   = -1;
+
+	if (chan->dev->card_info->avf[chan->number])
+		avf4910a_attach(&chan->i2c_adapter,
+				chan->dev->card_info->avf[chan->number]);
+
+	return ret;
+}