kernel/hdpvr-ir-enable.patch

 drivers/media/video/hdpvr/Makefile     |    4 +-
 drivers/media/video/hdpvr/hdpvr-core.c |   12 ++---
 drivers/media/video/hdpvr/hdpvr-i2c.c  |   83 ++++++++++++++++++++++----------
 drivers/media/video/hdpvr/hdpvr.h      |    2 +-
 4 files changed, 64 insertions(+), 37 deletions(-)

diff --git a/drivers/media/video/hdpvr/Makefile b/drivers/media/video/hdpvr/Makefile
index e0230fc..a0b9a43 100644
--- a/drivers/media/video/hdpvr/Makefile
+++ b/drivers/media/video/hdpvr/Makefile
@@ -1,6 +1,4 @@
-hdpvr-objs	:= hdpvr-control.o hdpvr-core.o hdpvr-video.o
-
-hdpvr-$(CONFIG_I2C) += hdpvr-i2c.o
+hdpvr-objs	:= hdpvr-control.o hdpvr-i2c.o hdpvr-core.o hdpvr-video.o
 
 obj-$(CONFIG_VIDEO_HDPVR) += hdpvr.o
 
diff --git a/drivers/media/video/hdpvr/hdpvr-core.c b/drivers/media/video/hdpvr/hdpvr-core.c
index 2fc9865..c72793a 100644
--- a/drivers/media/video/hdpvr/hdpvr-core.c
+++ b/drivers/media/video/hdpvr/hdpvr-core.c
@@ -364,9 +364,8 @@ static int hdpvr_probe(struct usb_interface *interface,
 		goto error;
 	}
 
-#ifdef CONFIG_I2C
-	/* until i2c is working properly */
-	retval = 0; /* hdpvr_register_i2c_adapter(dev); */
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	retval = hdpvr_register_i2c_adapter(dev);
 	if (retval < 0) {
 		v4l2_err(&dev->v4l2_dev, "registering i2c adapter failed\n");
 		goto error;
@@ -412,12 +411,9 @@ static void hdpvr_disconnect(struct usb_interface *interface)
 	mutex_unlock(&dev->io_mutex);
 
 	/* deregister I2C adapter */
-#ifdef CONFIG_I2C
+#if defined(CONFIG_I2C) || (CONFIG_I2C_MODULE)
 	mutex_lock(&dev->i2c_mutex);
-	if (dev->i2c_adapter)
-		i2c_del_adapter(dev->i2c_adapter);
-	kfree(dev->i2c_adapter);
-	dev->i2c_adapter = NULL;
+	i2c_del_adapter(&dev->i2c_adapter);
 	mutex_unlock(&dev->i2c_mutex);
 #endif /* CONFIG_I2C */
 
diff --git a/drivers/media/video/hdpvr/hdpvr-i2c.c b/drivers/media/video/hdpvr/hdpvr-i2c.c
index 463b81b..a0557e4 100644
--- a/drivers/media/video/hdpvr/hdpvr-i2c.c
+++ b/drivers/media/video/hdpvr/hdpvr-i2c.c
@@ -10,6 +10,8 @@
  *
  */
 
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+
 #include <linux/i2c.h>
 #include <linux/slab.h>
 
@@ -22,8 +24,11 @@
 #define REQTYPE_I2C_WRITE	0xb0
 #define REQTYPE_I2C_WRITE_STATT	0xd0
 
-static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
-			  char *data, int len)
+#define HDPVR_HW_Z8F0811_IR_TX_I2C_ADDR	0x70
+#define HDPVR_HW_Z8F0811_IR_RX_I2C_ADDR	0x71
+
+static int hdpvr_i2c_read(struct hdpvr_device *dev, int bus,
+			  unsigned char addr, char *data, int len)
 {
 	int ret;
 	char *buf = kmalloc(len, GFP_KERNEL);
@@ -33,7 +38,7 @@ static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
 	ret = usb_control_msg(dev->udev,
 			      usb_rcvctrlpipe(dev->udev, 0),
 			      REQTYPE_I2C_READ, CTRL_READ_REQUEST,
-			      0x100|addr, 0, buf, len, 1000);
+			      (bus << 8) | addr, 0, buf, len, 1000);
 
 	if (ret == len) {
 		memcpy(data, buf, len);
@@ -46,8 +51,8 @@ static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr,
 	return ret;
 }
 
-static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr,
-			   char *data, int len)
+static int hdpvr_i2c_write(struct hdpvr_device *dev, int bus,
+			   unsigned char addr, char *data, int len)
 {
 	int ret;
 	char *buf = kmalloc(len, GFP_KERNEL);
@@ -58,7 +63,7 @@ static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr,
 	ret = usb_control_msg(dev->udev,
 			      usb_sndctrlpipe(dev->udev, 0),
 			      REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST,
-			      0x100|addr, 0, buf, len, 1000);
+			      (bus << 8) | addr, 0, buf, len, 1000);
 
 	if (ret < 0)
 		goto error;
@@ -68,7 +73,7 @@ static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr,
 			      REQTYPE_I2C_WRITE_STATT, CTRL_READ_REQUEST,
 			      0, 0, buf, 2, 1000);
 
-	if (ret == 2)
+	if ((ret == 2) && (buf[1] == (len - 1)))
 		ret = 0;
 	else if (ret >= 0)
 		ret = -EIO;
@@ -93,10 +98,10 @@ static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs,
 		addr = msgs[i].addr << 1;
 
 		if (msgs[i].flags & I2C_M_RD)
-			retval = hdpvr_i2c_read(dev, addr, msgs[i].buf,
+			retval = hdpvr_i2c_read(dev, 1, addr, msgs[i].buf,
 						msgs[i].len);
 		else
-			retval = hdpvr_i2c_write(dev, addr, msgs[i].buf,
+			retval = hdpvr_i2c_write(dev, 1, addr, msgs[i].buf,
 						 msgs[i].len);
 	}
 
@@ -115,31 +120,59 @@ static struct i2c_algorithm hdpvr_algo = {
 	.functionality = hdpvr_functionality,
 };
 
+static struct i2c_adapter hdpvr_i2c_adapter_template = {
+	.name 	= "Hauppage HD PVR I2C",
+	.owner 	= THIS_MODULE,
+	.id 	= I2C_HW_B_HDPVR,
+	.algo 	= &hdpvr_algo,
+	.class 	= I2C_CLASS_TV_ANALOG,
+};
+
+static struct i2c_board_info hdpvr_i2c_board_info = {
+	I2C_BOARD_INFO("ir_tx_z8f0811_haup", HDPVR_HW_Z8F0811_IR_TX_I2C_ADDR),
+	I2C_BOARD_INFO("ir_rx_z8f0811_haup", HDPVR_HW_Z8F0811_IR_RX_I2C_ADDR),
+};
+
+static int hdpvr_activate_ir(struct hdpvr_device *dev)
+{
+	char buffer[8];
+
+	mutex_lock(&dev->i2c_mutex);
+
+	hdpvr_i2c_read(dev, 0, 0x54, buffer, 1);
+
+	buffer[0] = 0;
+	buffer[1] = 0x8;
+	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+	buffer[1] = 0x18;
+	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+	mutex_unlock(&dev->i2c_mutex);
+
+	return 0;
+}
+
 int hdpvr_register_i2c_adapter(struct hdpvr_device *dev)
 {
-	struct i2c_adapter *i2c_adap;
 	int retval = -ENOMEM;
 
-	i2c_adap = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
-	if (i2c_adap == NULL)
-		goto error;
+	hdpvr_activate_ir(dev);
 
-	strlcpy(i2c_adap->name, "Hauppauge HD PVR I2C",
-		sizeof(i2c_adap->name));
-	i2c_adap->algo  = &hdpvr_algo;
-	i2c_adap->class = I2C_CLASS_TV_ANALOG;
-	i2c_adap->owner = THIS_MODULE;
-	i2c_adap->dev.parent = &dev->udev->dev;
+	memcpy(&dev->i2c_adapter, &hdpvr_i2c_adapter_template,
+		sizeof(struct i2c_adapter));
+	dev->i2c_adapter.dev.parent = &dev->udev->dev;
 
-	i2c_set_adapdata(i2c_adap, dev);
+	i2c_set_adapdata(&dev->i2c_adapter, dev);
 
-	retval = i2c_add_adapter(i2c_adap);
+	retval = i2c_add_adapter(&dev->i2c_adapter);
+	if (retval)
+		goto error;
 
-	if (!retval)
-		dev->i2c_adapter = i2c_adap;
-	else
-		kfree(i2c_adap);
+	i2c_new_device(&dev->i2c_adapter, &hdpvr_i2c_board_info);
 
 error:
 	return retval;
 }
+
+#endif /* CONFIG_I2C */
diff --git a/drivers/media/video/hdpvr/hdpvr.h b/drivers/media/video/hdpvr/hdpvr.h
index 49ae25d..8a5729a 100644
--- a/drivers/media/video/hdpvr/hdpvr.h
+++ b/drivers/media/video/hdpvr/hdpvr.h
@@ -102,7 +102,7 @@ struct hdpvr_device {
 	struct work_struct	worker;
 
 	/* I2C adapter */
-	struct i2c_adapter	*i2c_adapter;
+	struct i2c_adapter	i2c_adapter;
 	/* I2C lock */
 	struct mutex		i2c_mutex;