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, 795 insertions, 0 deletions

diff --git a/kernel/drivers/media/usb/gspca/etoms.c b/kernel/drivers/media/usb/gspca/etoms.c
new file mode 100644
index 000000000..26c9ee1f1
--- /dev/null
+++ b/kernel/drivers/media/usb/gspca/etoms.c
@@ -0,0 +1,795 @@
+/*
+ * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)
+ *
+ * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
+ *
+ * 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
+ * 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
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define MODULE_NAME "etoms"
+
+#include "gspca.h"
+
+MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
+MODULE_DESCRIPTION("Etoms USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* specific webcam descriptor */
+struct sd {
+	struct gspca_dev gspca_dev;	/* !! must be the first item */
+
+	unsigned char autogain;
+
+	char sensor;
+#define SENSOR_PAS106 0
+#define SENSOR_TAS5130CXX 1
+	signed char ag_cnt;
+#define AG_CNT_START 13
+};
+
+static const struct v4l2_pix_format vga_mode[] = {
+	{320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 320,
+		.sizeimage = 320 * 240,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 1},
+/*	{640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 640,
+		.sizeimage = 640 * 480,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0}, */
+};
+
+static const struct v4l2_pix_format sif_mode[] = {
+	{176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 176,
+		.sizeimage = 176 * 144,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 1},
+	{352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 352,
+		.sizeimage = 352 * 288,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0},
+};
+
+#define ETOMS_ALT_SIZE_1000   12
+
+#define ET_GPIO_DIR_CTRL 0x04	/* Control IO bit[0..5] (0 in  1 out) */
+#define ET_GPIO_OUT 0x05	/* Only IO data */
+#define ET_GPIO_IN 0x06		/* Read Only IO data */
+#define ET_RESET_ALL 0x03
+#define ET_ClCK 0x01
+#define ET_CTRL 0x02		/* enable i2c OutClck Powerdown mode */
+
+#define ET_COMP 0x12		/* Compression register */
+#define ET_MAXQt 0x13
+#define ET_MINQt 0x14
+#define ET_COMP_VAL0 0x02
+#define ET_COMP_VAL1 0x03
+
+#define ET_REG1d 0x1d
+#define ET_REG1e 0x1e
+#define ET_REG1f 0x1f
+#define ET_REG20 0x20
+#define ET_REG21 0x21
+#define ET_REG22 0x22
+#define ET_REG23 0x23
+#define ET_REG24 0x24
+#define ET_REG25 0x25
+/* base registers for luma calculation */
+#define ET_LUMA_CENTER 0x39
+
+#define ET_G_RED 0x4d
+#define ET_G_GREEN1 0x4e
+#define ET_G_BLUE 0x4f
+#define ET_G_GREEN2 0x50
+#define ET_G_GR_H 0x51
+#define ET_G_GB_H 0x52
+
+#define ET_O_RED 0x34
+#define ET_O_GREEN1 0x35
+#define ET_O_BLUE 0x36
+#define ET_O_GREEN2 0x37
+
+#define ET_SYNCHRO 0x68
+#define ET_STARTX 0x69
+#define ET_STARTY 0x6a
+#define ET_WIDTH_LOW 0x6b
+#define ET_HEIGTH_LOW 0x6c
+#define ET_W_H_HEIGTH 0x6d
+
+#define ET_REG6e 0x6e		/* OBW */
+#define ET_REG6f 0x6f		/* OBW */
+#define ET_REG70 0x70		/* OBW_AWB */
+#define ET_REG71 0x71		/* OBW_AWB */
+#define ET_REG72 0x72		/* OBW_AWB */
+#define ET_REG73 0x73		/* Clkdelay ns */
+#define ET_REG74 0x74		/* test pattern */
+#define ET_REG75 0x75		/* test pattern */
+
+#define ET_I2C_CLK 0x8c
+#define ET_PXL_CLK 0x60
+
+#define ET_I2C_BASE 0x89
+#define ET_I2C_COUNT 0x8a
+#define ET_I2C_PREFETCH 0x8b
+#define ET_I2C_REG 0x88
+#define ET_I2C_DATA7 0x87
+#define ET_I2C_DATA6 0x86
+#define ET_I2C_DATA5 0x85
+#define ET_I2C_DATA4 0x84
+#define ET_I2C_DATA3 0x83
+#define ET_I2C_DATA2 0x82
+#define ET_I2C_DATA1 0x81
+#define ET_I2C_DATA0 0x80
+
+#define PAS106_REG2 0x02	/* pxlClk = systemClk/(reg2) */
+#define PAS106_REG3 0x03	/* line/frame H [11..4] */
+#define PAS106_REG4 0x04	/* line/frame L [3..0] */
+#define PAS106_REG5 0x05	/* exposure time line offset(default 5) */
+#define PAS106_REG6 0x06	/* exposure time pixel offset(default 6) */
+#define PAS106_REG7 0x07	/* signbit Dac (default 0) */
+#define PAS106_REG9 0x09
+#define PAS106_REG0e 0x0e	/* global gain [4..0](default 0x0e) */
+#define PAS106_REG13 0x13	/* end i2c write */
+
+static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
+
+static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
+
+static const __u8 I2c3[] = { 0x12, 0x05 };
+
+static const __u8 I2c4[] = { 0x41, 0x08 };
+
+/* read 'len' bytes to gspca_dev->usb_buf */
+static void reg_r(struct gspca_dev *gspca_dev,
+		  __u16 index,
+		  __u16 len)
+{
+	struct usb_device *dev = gspca_dev->dev;
+
+	if (len > USB_BUF_SZ) {
+		PERR("reg_r: buffer overflow\n");
+		return;
+	}
+
+	usb_control_msg(dev,
+			usb_rcvctrlpipe(dev, 0),
+			0,
+			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+			0,
+			index, gspca_dev->usb_buf, len, 500);
+	PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
+			index, gspca_dev->usb_buf[0]);
+}
+
+static void reg_w_val(struct gspca_dev *gspca_dev,
+			__u16 index,
+			__u8 val)
+{
+	struct usb_device *dev = gspca_dev->dev;
+
+	gspca_dev->usb_buf[0] = val;
+	usb_control_msg(dev,
+			usb_sndctrlpipe(dev, 0),
+			0,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+			0,
+			index, gspca_dev->usb_buf, 1, 500);
+}
+
+static void reg_w(struct gspca_dev *gspca_dev,
+		  __u16 index,
+		  const __u8 *buffer,
+		  __u16 len)
+{
+	struct usb_device *dev = gspca_dev->dev;
+
+	if (len > USB_BUF_SZ) {
+		pr_err("reg_w: buffer overflow\n");
+		return;
+	}
+	PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
+
+	memcpy(gspca_dev->usb_buf, buffer, len);
+	usb_control_msg(dev,
+			usb_sndctrlpipe(dev, 0),
+			0,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+			0, index, gspca_dev->usb_buf, len, 500);
+}
+
+static int i2c_w(struct gspca_dev *gspca_dev,
+		 __u8 reg,
+		 const __u8 *buffer,
+		 int len, __u8 mode)
+{
+	/* buffer should be [D0..D7] */
+	__u8 ptchcount;
+
+	/* set the base address */
+	reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
+					 /* sensor base for the pas106 */
+	/* set count and prefetch */
+	ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
+	reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
+	/* set the register base */
+	reg_w_val(gspca_dev, ET_I2C_REG, reg);
+	while (--len >= 0)
+		reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
+	return 0;
+}
+
+static int i2c_r(struct gspca_dev *gspca_dev,
+			__u8 reg)
+{
+	/* set the base address */
+	reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
+					/* sensor base for the pas106 */
+	/* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
+	reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
+	reg_w_val(gspca_dev, ET_I2C_REG, reg);	/* set the register base */
+	reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02);	/* prefetch */
+	reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
+	reg_r(gspca_dev, ET_I2C_DATA0, 1);	/* read one byte */
+	return 0;
+}
+
+static int Et_WaitStatus(struct gspca_dev *gspca_dev)
+{
+	int retry = 10;
+
+	while (retry--) {
+		reg_r(gspca_dev, ET_ClCK, 1);
+		if (gspca_dev->usb_buf[0] != 0)
+			return 1;
+	}
+	return 0;
+}
+
+static int et_video(struct gspca_dev *gspca_dev,
+		    int on)
+{
+	int ret;
+
+	reg_w_val(gspca_dev, ET_GPIO_OUT,
+		  on ? 0x10		/* startvideo - set Bit5 */
+		     : 0);		/* stopvideo */
+	ret = Et_WaitStatus(gspca_dev);
+	if (ret != 0)
+		PERR("timeout video on/off");
+	return ret;
+}
+
+static void Et_init2(struct gspca_dev *gspca_dev)
+{
+	__u8 value;
+	static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
+
+	PDEBUG(D_STREAM, "Open Init2 ET");
+	reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
+	reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
+	reg_r(gspca_dev, ET_GPIO_IN, 1);
+	reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
+	reg_w_val(gspca_dev, ET_CTRL, 0x1b);
+
+	/*  compression et subsampling */
+	if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
+		value = ET_COMP_VAL1;	/* 320 */
+	else
+		value = ET_COMP_VAL0;	/* 640 */
+	reg_w_val(gspca_dev, ET_COMP, value);
+	reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
+	reg_w_val(gspca_dev, ET_MINQt, 0x04);
+	/* undocumented registers */
+	reg_w_val(gspca_dev, ET_REG1d, 0xff);
+	reg_w_val(gspca_dev, ET_REG1e, 0xff);
+	reg_w_val(gspca_dev, ET_REG1f, 0xff);
+	reg_w_val(gspca_dev, ET_REG20, 0x35);
+	reg_w_val(gspca_dev, ET_REG21, 0x01);
+	reg_w_val(gspca_dev, ET_REG22, 0x00);
+	reg_w_val(gspca_dev, ET_REG23, 0xff);
+	reg_w_val(gspca_dev, ET_REG24, 0xff);
+	reg_w_val(gspca_dev, ET_REG25, 0x0f);
+	/* colors setting */
+	reg_w_val(gspca_dev, 0x30, 0x11);		/* 0x30 */
+	reg_w_val(gspca_dev, 0x31, 0x40);
+	reg_w_val(gspca_dev, 0x32, 0x00);
+	reg_w_val(gspca_dev, ET_O_RED, 0x00);		/* 0x34 */
+	reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
+	reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
+	reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
+	/*************/
+	reg_w_val(gspca_dev, ET_G_RED, 0x80);		/* 0x4d */
+	reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
+	reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
+	reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
+	reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
+	reg_w_val(gspca_dev, ET_G_GB_H, 0x00);		/* 0x52 */
+	/* Window control registers */
+	reg_w_val(gspca_dev, 0x61, 0x80);		/* use cmc_out */
+	reg_w_val(gspca_dev, 0x62, 0x02);
+	reg_w_val(gspca_dev, 0x63, 0x03);
+	reg_w_val(gspca_dev, 0x64, 0x14);
+	reg_w_val(gspca_dev, 0x65, 0x0e);
+	reg_w_val(gspca_dev, 0x66, 0x02);
+	reg_w_val(gspca_dev, 0x67, 0x02);
+
+	/**************************************/
+	reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f);		/* 0x68 */
+	reg_w_val(gspca_dev, ET_STARTX, 0x69);		/* 0x6a //0x69 */
+	reg_w_val(gspca_dev, ET_STARTY, 0x0d);		/* 0x0d //0x0c */
+	reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
+	reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
+	reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60);	/* 6d */
+	reg_w_val(gspca_dev, ET_REG6e, 0x86);
+	reg_w_val(gspca_dev, ET_REG6f, 0x01);
+	reg_w_val(gspca_dev, ET_REG70, 0x26);
+	reg_w_val(gspca_dev, ET_REG71, 0x7a);
+	reg_w_val(gspca_dev, ET_REG72, 0x01);
+	/* Clock Pattern registers ***************** */
+	reg_w_val(gspca_dev, ET_REG73, 0x00);
+	reg_w_val(gspca_dev, ET_REG74, 0x18);		/* 0x28 */
+	reg_w_val(gspca_dev, ET_REG75, 0x0f);		/* 0x01 */
+	/**********************************************/
+	reg_w_val(gspca_dev, 0x8a, 0x20);
+	reg_w_val(gspca_dev, 0x8d, 0x0f);
+	reg_w_val(gspca_dev, 0x8e, 0x08);
+	/**************************************/
+	reg_w_val(gspca_dev, 0x03, 0x08);
+	reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
+	reg_w_val(gspca_dev, 0x81, 0xff);
+	reg_w_val(gspca_dev, 0x80, 0x00);
+	reg_w_val(gspca_dev, 0x81, 0xff);
+	reg_w_val(gspca_dev, 0x80, 0x20);
+	reg_w_val(gspca_dev, 0x03, 0x01);
+	reg_w_val(gspca_dev, 0x03, 0x00);
+	reg_w_val(gspca_dev, 0x03, 0x08);
+	/********************************************/
+
+/*	reg_r(gspca_dev, ET_I2C_BASE, 1);
+					 always 0x40 as the pas106 ??? */
+	/* set the sensor */
+	if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
+		value = 0x04;		/* 320 */
+	else				/* 640 */
+		value = 0x1e;	/* 0x17	 * setting PixelClock
+					 * 0x03 mean 24/(3+1) = 6 Mhz
+					 * 0x05 -> 24/(5+1) = 4 Mhz
+					 * 0x0b -> 24/(11+1) = 2 Mhz
+					 * 0x17 -> 24/(23+1) = 1 Mhz
+					 */
+	reg_w_val(gspca_dev, ET_PXL_CLK, value);
+	/* now set by fifo the FormatLine setting */
+	reg_w(gspca_dev, 0x62, FormLine, 6);
+
+	/* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
+	reg_w_val(gspca_dev, 0x81, 0x47);	/* 0x47; */
+	reg_w_val(gspca_dev, 0x80, 0x40);	/* 0x40; */
+	/* Pedro change */
+	/* Brightness change Brith+ decrease value */
+	/* Brigth- increase value */
+	/* original value = 0x70; */
+	reg_w_val(gspca_dev, 0x81, 0x30);	/* 0x20; - set brightness */
+	reg_w_val(gspca_dev, 0x80, 0x20);	/* 0x20; */
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
+{
+	int i;
+
+	for (i = 0; i < 4; i++)
+		reg_w_val(gspca_dev, ET_O_RED + i, val);
+}
+
+static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
+{
+	__u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
+
+	memset(RGBG, val, sizeof(RGBG) - 2);
+	reg_w(gspca_dev, ET_G_RED, RGBG, 6);
+}
+
+static void setcolors(struct gspca_dev *gspca_dev, s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	__u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
+	__u8 i2cflags = 0x01;
+	/* __u8 green = 0; */
+
+	I2cc[3] = val;	/* red */
+	I2cc[0] = 15 - val;	/* blue */
+	/* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
+	/* I2cc[1] = I2cc[2] = green; */
+	if (sd->sensor == SENSOR_PAS106) {
+		i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
+		i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
+	}
+/*	PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
+		I2cc[3], I2cc[0], green); */
+}
+
+static s32 getcolors(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAS106) {
+/*		i2c_r(gspca_dev, PAS106_REG9);		 * blue */
+		i2c_r(gspca_dev, PAS106_REG9 + 3);	/* red */
+		return gspca_dev->usb_buf[0] & 0x0f;
+	}
+	return 0;
+}
+
+static void setautogain(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->autogain)
+		sd->ag_cnt = AG_CNT_START;
+	else
+		sd->ag_cnt = -1;
+}
+
+static void Et_init1(struct gspca_dev *gspca_dev)
+{
+	__u8 value;
+/*	__u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
+	__u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
+						/* try 1/120 0x6d 0xcd 0x40 */
+/*	__u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
+						 * 1/60000 hmm ?? */
+
+	PDEBUG(D_STREAM, "Open Init1 ET");
+	reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
+	reg_r(gspca_dev, ET_GPIO_IN, 1);
+	reg_w_val(gspca_dev, ET_RESET_ALL, 1);
+	reg_w_val(gspca_dev, ET_RESET_ALL, 0);
+	reg_w_val(gspca_dev, ET_ClCK, 0x10);
+	reg_w_val(gspca_dev, ET_CTRL, 0x19);
+	/*   compression et subsampling */
+	if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
+		value = ET_COMP_VAL1;
+	else
+		value = ET_COMP_VAL0;
+	PDEBUG(D_STREAM, "Open mode %d Compression %d",
+	       gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
+	       value);
+	reg_w_val(gspca_dev, ET_COMP, value);
+	reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
+	reg_w_val(gspca_dev, ET_MINQt, 0x02);
+	/* undocumented registers */
+	reg_w_val(gspca_dev, ET_REG1d, 0xff);
+	reg_w_val(gspca_dev, ET_REG1e, 0xff);
+	reg_w_val(gspca_dev, ET_REG1f, 0xff);
+	reg_w_val(gspca_dev, ET_REG20, 0x35);
+	reg_w_val(gspca_dev, ET_REG21, 0x01);
+	reg_w_val(gspca_dev, ET_REG22, 0x00);
+	reg_w_val(gspca_dev, ET_REG23, 0xf7);
+	reg_w_val(gspca_dev, ET_REG24, 0xff);
+	reg_w_val(gspca_dev, ET_REG25, 0x07);
+	/* colors setting */
+	reg_w_val(gspca_dev, ET_G_RED, 0x80);
+	reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
+	reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
+	reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
+	reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
+	reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
+	/* Window control registers */
+	reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
+	reg_w_val(gspca_dev, ET_STARTX, 0x56);		/* 0x56 */
+	reg_w_val(gspca_dev, ET_STARTY, 0x05);		/* 0x04 */
+	reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
+	reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
+	reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
+	reg_w_val(gspca_dev, ET_REG6e, 0x86);
+	reg_w_val(gspca_dev, ET_REG6f, 0x01);
+	reg_w_val(gspca_dev, ET_REG70, 0x86);
+	reg_w_val(gspca_dev, ET_REG71, 0x14);
+	reg_w_val(gspca_dev, ET_REG72, 0x00);
+	/* Clock Pattern registers */
+	reg_w_val(gspca_dev, ET_REG73, 0x00);
+	reg_w_val(gspca_dev, ET_REG74, 0x00);
+	reg_w_val(gspca_dev, ET_REG75, 0x0a);
+	reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
+	reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
+	/* set the sensor */
+	if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
+		I2c0[0] = 0x06;
+		i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
+		i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
+		value = 0x06;
+		i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
+		i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
+		/* value = 0x1f; */
+		value = 0x04;
+		i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
+	} else {
+		I2c0[0] = 0x0a;
+
+		i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
+		i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
+		value = 0x0a;
+		i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
+		i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
+		value = 0x04;
+		/* value = 0x10; */
+		i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
+		/* bit 2 enable bit 1:2 select 0 1 2 3
+		   value = 0x07;                                * curve 0 *
+		   i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
+		 */
+	}
+
+/*	value = 0x01; */
+/*	value = 0x22; */
+/*	i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
+	/* magnetude and sign bit for DAC */
+	i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
+	/* now set by fifo the whole colors setting */
+	reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
+	setcolors(gspca_dev, getcolors(gspca_dev));
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+		     const struct usb_device_id *id)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct cam *cam;
+
+	cam = &gspca_dev->cam;
+	sd->sensor = id->driver_info;
+	if (sd->sensor == SENSOR_PAS106) {
+		cam->cam_mode = sif_mode;
+		cam->nmodes = ARRAY_SIZE(sif_mode);
+	} else {
+		cam->cam_mode = vga_mode;
+		cam->nmodes = ARRAY_SIZE(vga_mode);
+	}
+	sd->ag_cnt = -1;
+	return 0;
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAS106)
+		Et_init1(gspca_dev);
+	else
+		Et_init2(gspca_dev);
+	reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
+	et_video(gspca_dev, 0);		/* video off */
+	return 0;
+}
+
+/* -- start the camera -- */
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAS106)
+		Et_init1(gspca_dev);
+	else
+		Et_init2(gspca_dev);
+
+	setautogain(gspca_dev);
+
+	reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
+	et_video(gspca_dev, 1);		/* video on */
+	return 0;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+	et_video(gspca_dev, 0);		/* video off */
+}
+
+static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAS106) {
+		i2c_r(gspca_dev, PAS106_REG0e);
+		PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
+		return gspca_dev->usb_buf[0];
+	}
+	return 0x1f;
+}
+
+static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->sensor == SENSOR_PAS106) {
+		__u8 i2cflags = 0x01;
+
+		i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
+		i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
+	}
+}
+
+#define BLIMIT(bright) \
+	(u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
+#define LIMIT(color) \
+	(u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
+
+static void do_autogain(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	__u8 luma;
+	__u8 luma_mean = 128;
+	__u8 luma_delta = 20;
+	__u8 spring = 4;
+	int Gbright;
+	__u8 r, g, b;
+
+	if (sd->ag_cnt < 0)
+		return;
+	if (--sd->ag_cnt >= 0)
+		return;
+	sd->ag_cnt = AG_CNT_START;
+
+	Gbright = Et_getgainG(gspca_dev);
+	reg_r(gspca_dev, ET_LUMA_CENTER, 4);
+	g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
+	r = gspca_dev->usb_buf[1];
+	b = gspca_dev->usb_buf[2];
+	r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
+	b = ((b << 7) >> 10);
+	g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
+	luma = LIMIT(r + g + b);
+	PDEBUG(D_FRAM, "Etoms luma G %d", luma);
+	if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
+		Gbright += (luma_mean - luma) >> spring;
+		Gbright = BLIMIT(Gbright);
+		PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
+		Et_setgainG(gspca_dev, (__u8) Gbright);
+	}
+}
+
+#undef BLIMIT
+#undef LIMIT
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+			u8 *data,			/* isoc packet */
+			int len)			/* iso packet length */
+{
+	int seqframe;
+
+	seqframe = data[0] & 0x3f;
+	len = (int) (((data[0] & 0xc0) << 2) | data[1]);
+	if (seqframe == 0x3f) {
+		PDEBUG(D_FRAM,
+		       "header packet found datalength %d !!", len);
+		PDEBUG(D_FRAM, "G %d R %d G %d B %d",
+		       data[2], data[3], data[4], data[5]);
+		data += 30;
+		/* don't change datalength as the chips provided it */
+		gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
+		gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
+		return;
+	}
+	if (len) {
+		data += 8;
+		gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
+	} else {			/* Drop Packet */
+		gspca_dev->last_packet_type = DISCARD_PACKET;
+	}
+}
+
+static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct gspca_dev *gspca_dev =
+		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+	struct sd *sd = (struct sd *)gspca_dev;
+
+	gspca_dev->usb_err = 0;
+
+	if (!gspca_dev->streaming)
+		return 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		setbrightness(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_CONTRAST:
+		setcontrast(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_SATURATION:
+		setcolors(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_AUTOGAIN:
+		sd->autogain = ctrl->val;
+		setautogain(gspca_dev);
+		break;
+	}
+	return gspca_dev->usb_err;
+}
+
+static const struct v4l2_ctrl_ops sd_ctrl_ops = {
+	.s_ctrl = sd_s_ctrl,
+};
+
+static int sd_init_controls(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *)gspca_dev;
+	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
+
+	gspca_dev->vdev.ctrl_handler = hdl;
+	v4l2_ctrl_handler_init(hdl, 4);
+	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+			V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
+	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+			V4L2_CID_CONTRAST, 0, 255, 1, 127);
+	if (sd->sensor == SENSOR_PAS106)
+		v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+			V4L2_CID_SATURATION, 0, 15, 1, 7);
+	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+	if (hdl->error) {
+		pr_err("Could not initialize controls\n");
+		return hdl->error;
+	}
+	return 0;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+	.name = MODULE_NAME,
+	.config = sd_config,
+	.init = sd_init,
+	.init_controls = sd_init_controls,
+	.start = sd_start,
+	.stopN = sd_stopN,
+	.pkt_scan = sd_pkt_scan,
+	.dq_callback = do_autogain,
+};
+
+/* -- module initialisation -- */
+static const struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
+	{USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+		    const struct usb_device_id *id)
+{
+	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+			       THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+	.name = MODULE_NAME,
+	.id_table = device_table,
+	.probe = sd_probe,
+	.disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+	.suspend = gspca_suspend,
+	.resume = gspca_resume,
+	.reset_resume = gspca_resume,
+#endif
+};
+
+module_usb_driver(sd_driver);