[PATCH] Indycam / VINO drivers

Rewrite of the Indycam / VINO video v4l2 drivers for the SGI Indy.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Mikael Nousiainen <tmnousia@cc.hut.fi>
Cc: <video4linux-list@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 5319 insertions, 192 deletions

diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 810e7aac0a53..3e6f5347da21 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -29,7 +29,7 @@ obj-$(CONFIG_VIDEO_ZORAN_LML33R10) += saa7114.o adv7170.o zr36060.o
 obj-$(CONFIG_VIDEO_ZORAN) += zr36067.o videocodec.o
 obj-$(CONFIG_VIDEO_PMS) += pms.o
 obj-$(CONFIG_VIDEO_PLANB) += planb.o
-obj-$(CONFIG_VIDEO_VINO) += vino.o
+obj-$(CONFIG_VIDEO_VINO) += vino.o saa7191.o indycam.o
 obj-$(CONFIG_VIDEO_STRADIS) += stradis.o
 obj-$(CONFIG_VIDEO_CPIA) += cpia.o
 obj-$(CONFIG_VIDEO_CPIA_PP) += cpia_pp.o
diff --git a/drivers/media/video/indycam.c b/drivers/media/video/indycam.c
new file mode 100644
index 000000000000..b2b0384cd4b9
--- /dev/null
+++ b/drivers/media/video/indycam.c
@@ -0,0 +1,412 @@
+/*
+ *  indycam.c - Silicon Graphics IndyCam digital camera driver
+ *
+ *  Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ *  Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+
+#include <linux/videodev.h>
+/* IndyCam decodes stream of photons into digital image representation ;-) */
+#include <linux/video_decoder.h>
+#include <linux/i2c.h>
+
+#include "indycam.h"
+
+//#define INDYCAM_DEBUG
+
+#define INDYCAM_MODULE_VERSION "0.0.3"
+
+MODULE_DESCRIPTION("SGI IndyCam driver");
+MODULE_VERSION(INDYCAM_MODULE_VERSION);
+MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
+MODULE_LICENSE("GPL");
+
+#ifdef INDYCAM_DEBUG
+#define dprintk(x...) printk("IndyCam: " x);
+#define indycam_regdump(client) indycam_regdump_debug(client)
+#else
+#define dprintk(x...)
+#define indycam_regdump(client)
+#endif
+
+#define VINO_ADAPTER	(I2C_ALGO_SGI | I2C_HW_SGI_VINO)
+
+struct indycam {
+	struct i2c_client *client;
+	int version;
+};
+
+static struct i2c_driver i2c_driver_indycam;
+
+static const unsigned char initseq[] = {
+	INDYCAM_CONTROL_AGCENA,		/* INDYCAM_CONTROL */
+	INDYCAM_SHUTTER_DEFAULT,	/* INDYCAM_SHUTTER */
+	INDYCAM_GAIN_DEFAULT,		/* INDYCAM_GAIN */
+	0x00,				/* INDYCAM_BRIGHTNESS (read-only) */
+	INDYCAM_RED_BALANCE_DEFAULT,	/* INDYCAM_RED_BALANCE */
+	INDYCAM_BLUE_BALANCE_DEFAULT,	/* INDYCAM_BLUE_BALANCE */
+	INDYCAM_RED_SATURATION_DEFAULT,	/* INDYCAM_RED_SATURATION */
+	INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */
+};
+
+/* IndyCam register handling */
+
+static int indycam_read_reg(struct i2c_client *client, unsigned char reg,
+			     unsigned char *value)
+{
+	int ret;
+
+	if (reg == INDYCAM_RESET) {
+		dprintk("indycam_read_reg(): "
+			"skipping write-only register %d\n", reg);
+		*value = 0;
+		return 0;
+	}
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0) {
+		printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
+		       "register = 0x%02x\n", reg);
+		return ret;
+	}
+
+	*value = (unsigned char)ret;
+
+	return 0;
+}
+
+static int indycam_write_reg(struct i2c_client *client, unsigned char reg,
+			     unsigned char value)
+{
+	int err;
+
+	if ((reg == INDYCAM_BRIGHTNESS)
+	    || (reg == INDYCAM_VERSION)) {
+		dprintk("indycam_write_reg(): "
+			"skipping read-only register %d\n", reg);
+		return 0;
+	}
+
+	dprintk("Writing Reg %d = 0x%02x\n", reg, value);
+	err = i2c_smbus_write_byte_data(client, reg, value);
+	if (err) {
+		printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
+		       "register = 0x%02x, value = 0x%02x\n", reg, value);
+	}
+	return err;
+}
+
+static int indycam_write_block(struct i2c_client *client, unsigned char reg,
+				unsigned char length, unsigned char *data)
+{
+	unsigned char i;
+	int err;
+
+	for (i = reg; i < length; i++) {
+		err = indycam_write_reg(client, reg + i, data[i]);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+/* Helper functions */
+
+#ifdef INDYCAM_DEBUG
+static void indycam_regdump_debug(struct i2c_client *client)
+{
+	int i;
+	unsigned char val;
+
+	for (i = 0; i < 9; i++) {
+		indycam_read_reg(client, i, &val);
+		dprintk("Reg %d = 0x%02x\n", i, val);
+	}
+}
+#endif
+
+static int indycam_get_controls(struct i2c_client *client,
+				struct indycam_control *ctrl)
+{
+	unsigned char ctrl_reg;
+
+	indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
+	ctrl->agc = (ctrl_reg & INDYCAM_CONTROL_AGCENA)
+		? INDYCAM_VALUE_ENABLED
+		: INDYCAM_VALUE_DISABLED;
+	ctrl->awb = (ctrl_reg & INDYCAM_CONTROL_AWBCTL)
+		? INDYCAM_VALUE_ENABLED
+		: INDYCAM_VALUE_DISABLED;
+	indycam_read_reg(client, INDYCAM_SHUTTER,
+			 (unsigned char *)&ctrl->shutter);
+	indycam_read_reg(client, INDYCAM_GAIN,
+			 (unsigned char *)&ctrl->gain);
+	indycam_read_reg(client, INDYCAM_RED_BALANCE,
+			 (unsigned char *)&ctrl->red_balance);
+	indycam_read_reg(client, INDYCAM_BLUE_BALANCE,
+			 (unsigned char *)&ctrl->blue_balance);
+	indycam_read_reg(client, INDYCAM_RED_SATURATION,
+			 (unsigned char *)&ctrl->red_saturation);
+	indycam_read_reg(client, INDYCAM_BLUE_SATURATION,
+			 (unsigned char *)&ctrl->blue_saturation);
+	indycam_read_reg(client, INDYCAM_GAMMA,
+			 (unsigned char *)&ctrl->gamma);
+
+	return 0;
+}
+
+static int indycam_set_controls(struct i2c_client *client,
+				struct indycam_control *ctrl)
+{
+	unsigned char ctrl_reg;
+
+	indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
+	if (ctrl->agc != INDYCAM_VALUE_UNCHANGED) {
+		if (ctrl->agc)
+			ctrl_reg |= INDYCAM_CONTROL_AGCENA;
+		else
+			ctrl_reg &= ~INDYCAM_CONTROL_AGCENA;
+	}
+	if (ctrl->awb != INDYCAM_VALUE_UNCHANGED) {
+		if (ctrl->awb)
+			ctrl_reg |= INDYCAM_CONTROL_AWBCTL;
+		else
+			ctrl_reg &= ~INDYCAM_CONTROL_AWBCTL;
+	}
+	indycam_write_reg(client, INDYCAM_CONTROL, ctrl_reg);
+
+	if (ctrl->shutter >= 0)
+		indycam_write_reg(client, INDYCAM_SHUTTER, ctrl->shutter);
+	if (ctrl->gain >= 0)
+		indycam_write_reg(client, INDYCAM_GAIN, ctrl->gain);
+	if (ctrl->red_balance >= 0)
+		indycam_write_reg(client, INDYCAM_RED_BALANCE,
+				  ctrl->red_balance);
+	if (ctrl->blue_balance >= 0)
+		indycam_write_reg(client, INDYCAM_BLUE_BALANCE,
+				  ctrl->blue_balance);
+	if (ctrl->red_saturation >= 0)
+		indycam_write_reg(client, INDYCAM_RED_SATURATION,
+				  ctrl->red_saturation);
+	if (ctrl->blue_saturation >= 0)
+		indycam_write_reg(client, INDYCAM_BLUE_SATURATION,
+				  ctrl->blue_saturation);
+	if (ctrl->gamma >= 0)
+		indycam_write_reg(client, INDYCAM_GAMMA, ctrl->gamma);
+
+	return 0;
+}
+
+/* I2C-interface */
+
+static int indycam_attach(struct i2c_adapter *adap, int addr, int kind)
+{
+	int err = 0;
+	struct indycam *camera;
+	struct i2c_client *client;
+
+	printk(KERN_INFO "SGI IndyCam driver version %s\n",
+	       INDYCAM_MODULE_VERSION);
+
+	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	if (!client)
+		return -ENOMEM;
+	camera = kmalloc(sizeof(struct indycam), GFP_KERNEL);
+	if (!camera) {
+		err = -ENOMEM;
+		goto out_free_client;
+	}
+
+	memset(client, 0, sizeof(struct i2c_client));
+	memset(camera, 0, sizeof(struct indycam));
+
+	client->addr = addr;
+	client->adapter = adap;
+	client->driver = &i2c_driver_indycam;
+	client->flags = 0;
+	strcpy(client->name, "IndyCam client");
+	i2c_set_clientdata(client, camera);
+
+	camera->client = client;
+
+	err = i2c_attach_client(client);
+	if (err)
+		goto out_free_camera;
+
+	camera->version = i2c_smbus_read_byte_data(client, INDYCAM_VERSION);
+	if (camera->version != CAMERA_VERSION_INDY &&
+	    camera->version != CAMERA_VERSION_MOOSE) {
+		err = -ENODEV;
+		goto out_detach_client;
+	}
+	printk(KERN_INFO "IndyCam v%d.%d detected\n",
+	       INDYCAM_VERSION_MAJOR(camera->version),
+	       INDYCAM_VERSION_MINOR(camera->version));
+
+	indycam_regdump(client);
+
+	// initialize
+	err = indycam_write_block(client, 0, sizeof(initseq),
+				  (unsigned char *)&initseq);
+	if (err) {
+		printk(KERN_ERR "IndyCam initalization failed\n");
+		err = -EIO;
+		goto out_detach_client;
+	}
+
+	indycam_regdump(client);
+
+	// white balance
+	err = indycam_write_reg(client, INDYCAM_CONTROL,
+			  INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
+	if (err) {
+		printk(KERN_ERR "IndyCam white balance "
+		       "initialization failed\n");
+		err = -EIO;
+		goto out_detach_client;
+	}
+
+	indycam_regdump(client);
+
+	printk(KERN_INFO "IndyCam initialized\n");
+
+	return 0;
+
+out_detach_client:
+	i2c_detach_client(client);
+out_free_camera:
+	kfree(camera);
+out_free_client:
+	kfree(client);
+	return err;
+}
+
+static int indycam_probe(struct i2c_adapter *adap)
+{
+	/* Indy specific crap */
+	if (adap->id == VINO_ADAPTER)
+		return indycam_attach(adap, INDYCAM_ADDR, 0);
+	/* Feel free to add probe here :-) */
+	return -ENODEV;
+}
+
+static int indycam_detach(struct i2c_client *client)
+{
+	struct indycam *camera = i2c_get_clientdata(client);
+
+	i2c_detach_client(client);
+	kfree(camera);
+	kfree(client);
+	return 0;
+}
+
+static int indycam_command(struct i2c_client *client, unsigned int cmd,
+			   void *arg)
+{
+	// struct indycam *camera = i2c_get_clientdata(client);
+
+	/* The old video_decoder interface just isn't enough,
+	 * so we'll use some custom commands. */
+	switch (cmd) {
+	case DECODER_GET_CAPABILITIES: {
+		struct video_decoder_capability *cap = arg;
+
+		cap->flags  = VIDEO_DECODER_NTSC;
+		cap->inputs = 1;
+		cap->outputs = 1;
+		break;
+	}
+	case DECODER_GET_STATUS: {
+		int *iarg = arg;
+
+		*iarg = DECODER_STATUS_GOOD | DECODER_STATUS_NTSC |
+			DECODER_STATUS_COLOR;
+		break;
+	}
+	case DECODER_SET_NORM: {
+		int *iarg = arg;
+
+		switch (*iarg) {
+		case VIDEO_MODE_NTSC:
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	}
+	case DECODER_SET_INPUT:	{
+		int *iarg = arg;
+
+		if (*iarg != 0)
+			return -EINVAL;
+		break;
+	}
+	case DECODER_SET_OUTPUT: {
+		int *iarg = arg;
+
+		if (*iarg != 0)
+			return -EINVAL;
+		break;
+	}
+	case DECODER_ENABLE_OUTPUT: {
+		/* Always enabled */
+		break;
+	}
+	case DECODER_SET_PICTURE: {
+		// struct video_picture *pic = arg;
+		/* TODO: convert values for indycam_set_controls() */
+		break;
+	}
+	case DECODER_INDYCAM_GET_CONTROLS: {
+		struct indycam_control *ctrl = arg;
+		indycam_get_controls(client, ctrl);
+	}
+	case DECODER_INDYCAM_SET_CONTROLS: {
+		struct indycam_control *ctrl = arg;
+		indycam_set_controls(client, ctrl);
+	}
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct i2c_driver i2c_driver_indycam = {
+	.owner		= THIS_MODULE,
+	.name 		= "indycam",
+	.id 		= I2C_DRIVERID_INDYCAM,
+	.flags 		= I2C_DF_NOTIFY,
+	.attach_adapter = indycam_probe,
+	.detach_client 	= indycam_detach,
+	.command 	= indycam_command,
+};
+
+static int __init indycam_init(void)
+{
+	return i2c_add_driver(&i2c_driver_indycam);
+}
+
+static void __exit indycam_exit(void)
+{
+	i2c_del_driver(&i2c_driver_indycam);
+}
+
+module_init(indycam_init);
+module_exit(indycam_exit);
diff --git a/drivers/media/video/indycam.h b/drivers/media/video/indycam.h
new file mode 100644
index 000000000000..d9ddb6b79a03
--- /dev/null
+++ b/drivers/media/video/indycam.h
@@ -0,0 +1,112 @@
+/*
+ *  indycam.h - Silicon Graphics IndyCam digital camera driver
+ *
+ *  Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ *  Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#ifndef _INDYCAM_H_
+#define _INDYCAM_H_
+
+/* I2C address for the Guinness Camera */
+#define INDYCAM_ADDR			0x56
+
+/* Camera version */
+#define CAMERA_VERSION_INDY		0x10	/* v1.0 */
+#define CAMERA_VERSION_MOOSE		0x12	/* v1.2 */
+#define INDYCAM_VERSION_MAJOR(x)	(((x) & 0xf0) >> 4)
+#define INDYCAM_VERSION_MINOR(x)	((x) & 0x0f)
+
+/* Register bus addresses */
+#define INDYCAM_CONTROL			0x00
+#define INDYCAM_SHUTTER			0x01
+#define INDYCAM_GAIN			0x02
+#define INDYCAM_BRIGHTNESS		0x03 /* read-only */
+#define INDYCAM_RED_BALANCE		0x04
+#define INDYCAM_BLUE_BALANCE		0x05
+#define INDYCAM_RED_SATURATION		0x06
+#define INDYCAM_BLUE_SATURATION		0x07
+#define INDYCAM_GAMMA			0x08
+#define INDYCAM_VERSION			0x0e /* read-only */
+#define INDYCAM_RESET			0x0f /* write-only */
+
+#define INDYCAM_LED			0x46
+#define INDYCAM_ORIENTATION		0x47
+#define INDYCAM_BUTTON			0x48
+
+/* Field definitions of registers */
+#define INDYCAM_CONTROL_AGCENA		(1<<0) /* automatic gain control */
+#define INDYCAM_CONTROL_AWBCTL		(1<<1) /* automatic white balance */
+						/* 2-3 are reserved */
+#define INDYCAM_CONTROL_EVNFLD		(1<<4)	/* read-only */
+
+#define INDYCAM_SHUTTER_10000		0x02	/* 1/10000 second */
+#define INDYCAM_SHUTTER_4000		0x04	/* 1/4000 second */
+#define INDYCAM_SHUTTER_2000		0x08	/* 1/2000 second */
+#define INDYCAM_SHUTTER_1000		0x10	/* 1/1000 second */
+#define INDYCAM_SHUTTER_500		0x20	/* 1/500 second */
+#define INDYCAM_SHUTTER_250		0x3f	/* 1/250 second */
+#define INDYCAM_SHUTTER_125		0x7e	/* 1/125 second */
+#define INDYCAM_SHUTTER_100		0x9e	/* 1/100 second */
+#define INDYCAM_SHUTTER_60		0x00	/* 1/60 second */
+
+#define INDYCAM_LED_ACTIVE			0x10
+#define INDYCAM_LED_INACTIVE			0x30
+#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP	0x40
+#define INDYCAM_BUTTON_RELEASED			0x10
+
+#define INDYCAM_SHUTTER_MIN		0x00
+#define INDYCAM_SHUTTER_MAX		0xff
+#define INDYCAM_GAIN_MIN                0x00
+#define INDYCAM_GAIN_MAX                0xff
+#define INDYCAM_RED_BALANCE_MIN 	0x00 /* the effect is the opposite? */
+#define INDYCAM_RED_BALANCE_MAX 	0xff
+#define INDYCAM_BLUE_BALANCE_MIN        0x00 /* the effect is the opposite? */
+#define INDYCAM_BLUE_BALANCE_MAX        0xff
+#define INDYCAM_RED_SATURATION_MIN      0x00
+#define INDYCAM_RED_SATURATION_MAX      0xff
+#define INDYCAM_BLUE_SATURATION_MIN	0x00
+#define INDYCAM_BLUE_SATURATION_MAX	0xff
+#define INDYCAM_GAMMA_MIN		0x00
+#define INDYCAM_GAMMA_MAX		0xff
+
+/* Driver interface definitions */
+
+#define INDYCAM_VALUE_ENABLED		1
+#define INDYCAM_VALUE_DISABLED		0
+#define INDYCAM_VALUE_UNCHANGED		-1
+
+/* When setting controls, a value of -1 leaves the control unchanged. */
+struct indycam_control {
+	int agc;	/* boolean */
+	int awb;	/* boolean */
+	int shutter;
+	int gain;
+	int red_balance;
+	int blue_balance;
+	int red_saturation;
+	int blue_saturation;
+	int gamma;
+};
+
+#define	DECODER_INDYCAM_GET_CONTROLS	_IOR('d', 193, struct indycam_control)
+#define	DECODER_INDYCAM_SET_CONTROLS	_IOW('d', 194, struct indycam_control)
+
+/* Default values for controls */
+
+#define INDYCAM_AGC_DEFAULT		INDYCAM_VALUE_ENABLED
+#define INDYCAM_AWB_DEFAULT		INDYCAM_VALUE_ENABLED
+
+#define INDYCAM_SHUTTER_DEFAULT		INDYCAM_SHUTTER_60
+#define INDYCAM_GAIN_DEFAULT		0x80
+#define INDYCAM_RED_BALANCE_DEFAULT	0x18
+#define INDYCAM_BLUE_BALANCE_DEFAULT	0xa4
+#define INDYCAM_RED_SATURATION_DEFAULT	0x80
+#define INDYCAM_BLUE_SATURATION_DEFAULT	0xc0
+#define INDYCAM_GAMMA_DEFAULT		0x80
+
+#endif
diff --git a/drivers/media/video/saa7191.c b/drivers/media/video/saa7191.c
new file mode 100644
index 000000000000..454f5c1199b4
--- /dev/null
+++ b/drivers/media/video/saa7191.c
@@ -0,0 +1,512 @@
+/*
+ *  saa7191.c - Philips SAA7191 video decoder driver
+ *
+ *  Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ *  Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+
+#include <linux/videodev.h>
+#include <linux/video_decoder.h>
+#include <linux/i2c.h>
+
+#include "saa7191.h"
+
+#define SAA7191_MODULE_VERSION "0.0.3"
+
+MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
+MODULE_VERSION(SAA7191_MODULE_VERSION);
+MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
+MODULE_LICENSE("GPL");
+
+#define VINO_ADAPTER	(I2C_ALGO_SGI | I2C_HW_SGI_VINO)
+
+struct saa7191 {
+	struct i2c_client *client;
+
+	/* the register values are stored here as the actual
+	 * I2C-registers are write-only */
+	unsigned char reg[25];
+
+	unsigned char norm;
+	unsigned char input;
+};
+
+static struct i2c_driver i2c_driver_saa7191;
+
+static const unsigned char initseq[] = {
+	0,	/* Subaddress */
+	0x50,	/* SAA7191_REG_IDEL */
+	0x30,	/* SAA7191_REG_HSYB */
+	0x00,	/* SAA7191_REG_HSYS */
+	0xe8,	/* SAA7191_REG_HCLB */
+	0xb6,	/* SAA7191_REG_HCLS */
+	0xf4,	/* SAA7191_REG_HPHI */
+	0x01,	/* SAA7191_REG_LUMA - chrominance trap active (CVBS) */
+	0x00,	/* SAA7191_REG_HUEC */
+	0xf8,	/* SAA7191_REG_CKTQ */
+	0xf8,	/* SAA7191_REG_CKTS */
+	0x90,	/* SAA7191_REG_PLSE */
+	0x90,	/* SAA7191_REG_SESE */
+	0x00,	/* SAA7191_REG_GAIN */
+	0x0c,	/* SAA7191_REG_STDC - not SECAM, slow time constant */
+	0x78,	/* SAA7191_REG_IOCK - chrominance from CVBS, GPSW1 & 2 off */
+	0x99,	/* SAA7191_REG_CTL3 - automatic field detection */
+	0x00,	/* SAA7191_REG_CTL4 */
+	0x2c,	/* SAA7191_REG_CHCV */
+	0x00,	/* unused */
+	0x00,	/* unused */
+	0x34,	/* SAA7191_REG_HS6B */
+	0x0a,	/* SAA7191_REG_HS6S */
+	0xf4,	/* SAA7191_REG_HC6B */
+	0xce,	/* SAA7191_REG_HC6S */
+	0xf4,	/* SAA7191_REG_HP6I */
+};
+
+/* SAA7191 register handling */
+
+static unsigned char saa7191_read_reg(struct i2c_client *client,
+				      unsigned char reg)
+{
+	return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg];
+}
+
+static int saa7191_read_status(struct i2c_client *client,
+			       unsigned char *value)
+{
+	int ret;
+
+	ret = i2c_master_recv(client, value, 1);
+	if (ret < 0) {
+		printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed");
+		return ret;
+	}
+
+	return 0;
+}
+
+
+static int saa7191_write_reg(struct i2c_client *client, unsigned char reg,
+			     unsigned char value)
+{
+
+	((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value;
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* the first byte of data must be the first subaddress number (register) */
+static int saa7191_write_block(struct i2c_client *client,
+			       unsigned char length, unsigned char *data)
+{
+	int i;
+	int ret;
+
+	struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client);
+	for (i = 0; i < (length - 1); i++) {
+		decoder->reg[data[0] + i] = data[i + 1];
+	}
+
+	ret = i2c_master_send(client, data, length);
+	if (ret < 0) {
+		printk(KERN_ERR "SAA7191: saa7191_write_block(): "
+		       "write failed");
+		return ret;
+	}
+
+	return 0;
+}
+
+/* Helper functions */
+
+static int saa7191_set_input(struct i2c_client *client, int input)
+{
+	unsigned char luma = saa7191_read_reg(client, SAA7191_REG_LUMA);
+	unsigned char iock = saa7191_read_reg(client, SAA7191_REG_IOCK);
+	int err;
+
+	switch (input) {
+	case SAA7191_INPUT_COMPOSITE: /* Set Composite input */
+		iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1
+			  | SAA7191_IOCK_GPSW2);
+		/* Chrominance trap active */
+		luma &= ~SAA7191_LUMA_BYPS;
+		break;
+	case SAA7191_INPUT_SVIDEO: /* Set S-Video input */
+		iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2;
+		/* Chrominance trap bypassed */
+		luma |= SAA7191_LUMA_BYPS;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma);
+	if (err)
+		return -EIO;
+	err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock);
+	if (err)
+		return -EIO;
+
+	return 0;
+}
+
+static int saa7191_set_norm(struct i2c_client *client, int norm)
+{
+	struct saa7191 *decoder = i2c_get_clientdata(client);
+	unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
+	unsigned char ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3);
+	unsigned char chcv = saa7191_read_reg(client, SAA7191_REG_CHCV);
+	int err;
+
+	switch(norm) {
+	case SAA7191_NORM_AUTO: {
+		unsigned char status;
+
+		// does status depend on current norm ?
+		if (saa7191_read_status(client, &status))
+			return -EIO;
+
+		stdc &= ~SAA7191_STDC_SECS;
+		ctl3 &= ~SAA7191_CTL3_FSEL;
+		ctl3 |= SAA7191_CTL3_AUFD;
+		chcv = (status & SAA7191_STATUS_FIDT)
+			       ? SAA7191_CHCV_NTSC : SAA7191_CHCV_PAL;
+		break;
+	}
+	case SAA7191_NORM_PAL:
+		stdc &= ~SAA7191_STDC_SECS;
+		ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
+		chcv = SAA7191_CHCV_PAL;
+		break;
+	case SAA7191_NORM_NTSC:
+		stdc &= ~SAA7191_STDC_SECS;
+		ctl3 &= ~SAA7191_CTL3_AUFD;
+		ctl3 |= SAA7191_CTL3_FSEL;
+		chcv = SAA7191_CHCV_NTSC;
+		break;
+	case SAA7191_NORM_SECAM:
+		stdc |= SAA7191_STDC_SECS;
+		ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
+		chcv = SAA7191_CHCV_PAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
+	if (err)
+		return -EIO;
+	err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
+	if (err)
+		return -EIO;
+	err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv);
+	if (err)
+		return -EIO;
+
+	decoder->norm = norm;
+
+	return 0;
+}
+
+static int saa7191_get_controls(struct i2c_client *client,
+				struct saa7191_control *ctrl)
+{
+	unsigned char hue = saa7191_read_reg(client, SAA7191_REG_HUEC);
+	unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
+
+	if (hue < 0x80) {
+		hue += 0x80;
+	} else {
+		hue -= 0x80;
+	}
+	ctrl->hue = hue;
+
+	ctrl->vtrc = (stdc & SAA7191_STDC_VTRC)
+		? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
+
+	return 0;
+}
+
+static int saa7191_set_controls(struct i2c_client *client,
+				struct saa7191_control *ctrl)
+{
+	int err;
+
+	if (ctrl->hue >= 0) {
+		unsigned char hue = ctrl->hue & 0xff;
+		if (hue < 0x80) {
+			hue += 0x80;
+		} else {
+			hue -= 0x80;
+		}
+		err = saa7191_write_reg(client, SAA7191_REG_HUEC, hue);
+		if (err)
+			return -EIO;
+	}
+	if (ctrl->vtrc >= 0) {
+		unsigned char stdc =
+			saa7191_read_reg(client, SAA7191_REG_STDC);
+
+		if (ctrl->vtrc) {
+			stdc |= SAA7191_STDC_VTRC;
+		} else {
+			stdc &= ~SAA7191_STDC_VTRC;
+		}
+
+		err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
+		if (err)
+			return -EIO;
+	}
+
+	return 0;
+}
+
+/* I2C-interface */
+
+static int saa7191_attach(struct i2c_adapter *adap, int addr, int kind)
+{
+	int err = 0;
+	struct saa7191 *decoder;
+	struct i2c_client *client;
+
+	printk(KERN_INFO "Philips SAA7191 driver version %s\n",
+	       SAA7191_MODULE_VERSION);
+
+	client = kmalloc(sizeof(*client), GFP_KERNEL);
+	if (!client)
+		return -ENOMEM;
+	decoder = kmalloc(sizeof(*decoder), GFP_KERNEL);
+	if (!decoder) {
+		err = -ENOMEM;
+		goto out_free_client;
+	}
+
+	memset(client, 0, sizeof(struct i2c_client));
+	memset(decoder, 0, sizeof(struct saa7191));
+
+	client->addr = addr;
+	client->adapter = adap;
+	client->driver = &i2c_driver_saa7191;
+	client->flags = 0;
+	strcpy(client->name, "saa7191 client");
+	i2c_set_clientdata(client, decoder);
+
+	decoder->client = client;
+
+	err = i2c_attach_client(client);
+	if (err)
+		goto out_free_decoder;
+
+	decoder->input = SAA7191_INPUT_COMPOSITE;
+	decoder->norm = SAA7191_NORM_AUTO;
+
+	err = saa7191_write_block(client, sizeof(initseq),
+				  (unsigned char *)initseq);
+	if (err) {
+		printk(KERN_ERR "SAA7191 initialization failed\n");
+		goto out_detach_client;
+	}
+
+	printk(KERN_INFO "SAA7191 initialized\n");
+
+	return 0;
+
+out_detach_client:
+	i2c_detach_client(client);
+out_free_decoder:
+	kfree(decoder);
+out_free_client:
+	kfree(client);
+	return err;
+}
+
+static int saa7191_probe(struct i2c_adapter *adap)
+{
+	/* Always connected to VINO */
+	if (adap->id == VINO_ADAPTER)
+		return saa7191_attach(adap, SAA7191_ADDR, 0);
+	/* Feel free to add probe here :-) */
+	return -ENODEV;
+}
+
+static int saa7191_detach(struct i2c_client *client)
+{
+	struct saa7191 *decoder = i2c_get_clientdata(client);
+
+	i2c_detach_client(client);
+	kfree(decoder);
+	kfree(client);
+	return 0;
+}
+
+static int saa7191_command(struct i2c_client *client, unsigned int cmd,
+			   void *arg)
+{
+	struct saa7191 *decoder = i2c_get_clientdata(client);
+
+	switch (cmd) {
+	case DECODER_GET_CAPABILITIES: {
+		struct video_decoder_capability *cap = arg;
+
+		cap->flags  = VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
+			      VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
+		cap->inputs = (client->adapter->id == VINO_ADAPTER) ? 2 : 1;
+		cap->outputs = 1;
+		break;
+	}
+	case DECODER_GET_STATUS: {
+		int *iarg = arg;
+		unsigned char status;
+		int res = 0;
+
+		if (saa7191_read_status(client, &status)) {
+			return -EIO;
+		}
+		if ((status & SAA7191_STATUS_HLCK) == 0)
+			res |= DECODER_STATUS_GOOD;
+		if (status & SAA7191_STATUS_CODE)
+			res |= DECODER_STATUS_COLOR;
+		switch (decoder->norm) {
+		case SAA7191_NORM_NTSC:
+			res |= DECODER_STATUS_NTSC;
+			break;
+		case SAA7191_NORM_PAL:
+			res |= DECODER_STATUS_PAL;
+			break;
+		case SAA7191_NORM_SECAM:
+			res |= DECODER_STATUS_SECAM;
+			break;
+		case SAA7191_NORM_AUTO:
+		default:
+			if (status & SAA7191_STATUS_FIDT)
+				res |= DECODER_STATUS_NTSC;
+			else
+				res |= DECODER_STATUS_PAL;
+			break;
+		}
+		*iarg = res;
+		break;
+	}
+	case DECODER_SET_NORM: {
+		int *iarg = arg;
+
+		switch (*iarg) {
+		case VIDEO_MODE_AUTO:
+			return saa7191_set_norm(client, SAA7191_NORM_AUTO);
+		case VIDEO_MODE_PAL:
+			return saa7191_set_norm(client, SAA7191_NORM_PAL);
+		case VIDEO_MODE_NTSC:
+			return saa7191_set_norm(client, SAA7191_NORM_NTSC);
+		case VIDEO_MODE_SECAM:
+			return saa7191_set_norm(client, SAA7191_NORM_SECAM);
+		default:
+			return -EINVAL;
+		}
+		break;
+	}
+	case DECODER_SET_INPUT:	{
+		int *iarg = arg;
+
+		switch (client->adapter->id) {
+		case VINO_ADAPTER:
+			return saa7191_set_input(client, *iarg);
+		default:
+			if (*iarg != 0)
+				return -EINVAL;
+		}
+		break;
+	}
+	case DECODER_SET_OUTPUT: {
+		int *iarg = arg;
+
+		/* not much choice of outputs */
+		if (*iarg != 0)
+			return -EINVAL;
+		break;
+	}
+	case DECODER_ENABLE_OUTPUT: {
+		/* Always enabled */
+		break;
+	}
+	case DECODER_SET_PICTURE: {
+		struct video_picture *pic = arg;
+		unsigned val;
+		int err;
+
+		val = (pic->hue >> 8) - 0x80;
+		err = saa7191_write_reg(client, SAA7191_REG_HUEC, val);
+		if (err)
+			return -EIO;
+		break;
+	}
+	case DECODER_SAA7191_GET_STATUS: {
+		struct saa7191_status *status = arg;
+		unsigned char status_reg;
+
+		if (saa7191_read_status(client, &status_reg))
+			return -EIO;
+		status->signal = ((status_reg & SAA7191_STATUS_HLCK) == 0)
+			? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
+		status->ntsc = (status_reg & SAA7191_STATUS_FIDT)
+			? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
+		status->color = (status_reg & SAA7191_STATUS_CODE)
+			? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
+
+		status->input = decoder->input;
+		status->norm = decoder->norm;
+	}
+	case DECODER_SAA7191_SET_NORM: {
+		int *norm = arg;
+		return saa7191_set_norm(client, *norm);
+	}
+	case DECODER_SAA7191_GET_CONTROLS: {
+		struct saa7191_control *ctrl = arg;
+		return saa7191_get_controls(client, ctrl);
+	}
+	case DECODER_SAA7191_SET_CONTROLS: {
+		struct saa7191_control *ctrl = arg;
+		return saa7191_set_controls(client, ctrl);
+	}
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct i2c_driver i2c_driver_saa7191 = {
+	.owner		= THIS_MODULE,
+	.name 		= "saa7191",
+	.id 		= I2C_DRIVERID_SAA7191,
+	.flags 		= I2C_DF_NOTIFY,
+	.attach_adapter = saa7191_probe,
+	.detach_client 	= saa7191_detach,
+	.command 	= saa7191_command
+};
+
+static int saa7191_init(void)
+{
+	return i2c_add_driver(&i2c_driver_saa7191);
+}
+
+static void saa7191_exit(void)
+{
+	i2c_del_driver(&i2c_driver_saa7191);
+}
+
+module_init(saa7191_init);
+module_exit(saa7191_exit);
diff --git a/drivers/media/video/saa7191.h b/drivers/media/video/saa7191.h
new file mode 100644
index 000000000000..272045031435
--- /dev/null
+++ b/drivers/media/video/saa7191.h
@@ -0,0 +1,139 @@
+/*
+ *  saa7191.h - Philips SAA7191 video decoder driver
+ *
+ *  Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ *  Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#ifndef _SAA7191_H_
+#define _SAA7191_H_
+
+/* Philips SAA7191 DMSD I2C bus address */
+#define SAA7191_ADDR		0x8a
+
+/* Register subaddresses. */
+#define SAA7191_REG_IDEL	0x00
+#define SAA7191_REG_HSYB	0x01
+#define SAA7191_REG_HSYS	0x02
+#define SAA7191_REG_HCLB	0x03
+#define SAA7191_REG_HCLS	0x04
+#define SAA7191_REG_HPHI	0x05
+#define SAA7191_REG_LUMA	0x06
+#define SAA7191_REG_HUEC	0x07
+#define SAA7191_REG_CKTQ	0x08
+#define SAA7191_REG_CKTS	0x09
+#define SAA7191_REG_PLSE	0x0a
+#define SAA7191_REG_SESE	0x0b
+#define SAA7191_REG_GAIN	0x0c
+#define SAA7191_REG_STDC	0x0d
+#define SAA7191_REG_IOCK	0x0e
+#define SAA7191_REG_CTL3	0x0f
+#define SAA7191_REG_CTL4	0x10
+#define SAA7191_REG_CHCV	0x11
+#define SAA7191_REG_HS6B	0x14
+#define SAA7191_REG_HS6S	0x15
+#define SAA7191_REG_HC6B	0x16
+#define SAA7191_REG_HC6S	0x17
+#define SAA7191_REG_HP6I	0x18
+#define SAA7191_REG_STATUS	0xff	/* not really a subaddress */
+
+/* Status Register definitions */
+#define SAA7191_STATUS_CODE	0x01	/* color detected flag */
+#define SAA7191_STATUS_FIDT	0x20	/* format type NTSC/PAL */
+#define SAA7191_STATUS_HLCK	0x40	/* PLL unlocked/locked */
+#define SAA7191_STATUS_STTC	0x80	/* tv/vtr time constant */
+
+/* Luminance Control Register definitions */
+#define SAA7191_LUMA_BYPS	0x80
+
+/* Chroma Gain Control Settings Register definitions */
+/* 0=automatic colour-killer enabled, 1=forced colour on */
+#define SAA7191_GAIN_COLO	0x80
+
+/* Standard/Mode Control Register definitions */
+/* tv/vtr mode bit: 0=TV mode (slow time constant),
+ * 1=VTR mode (fast time constant) */
+#define SAA7191_STDC_VTRC	0x80
+/* SECAM mode bit: 0=other standards, 1=SECAM */
+#define SAA7191_STDC_SECS	0x01
+/* the bit fields above must be or'd with this value */
+#define SAA7191_STDC_VALUE	0x0c
+
+/*