V4L/DVB (11066): au0828: add support for analog functionality in bridge

Add support for the analog functionality found in the au0828 bridge

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
[mchehab@redhat.com: fix compilation by adding linux/version.h]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 32 insertions, 1 deletions

diff --git a/drivers/media/video/au0828/au0828-core.c b/drivers/media/video/au0828/au0828-core.c
index 5765e8656376..680e88f61397 100644
--- a/drivers/media/video/au0828/au0828-core.c
+++ b/drivers/media/video/au0828/au0828-core.c
@@ -146,6 +146,8 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 	/* Digital TV */
 	au0828_dvb_unregister(dev);
 
+	au0828_analog_unregister(dev);
+
 	/* I2C */
 	au0828_i2c_unregister(dev);
 
@@ -162,9 +164,11 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 static int au0828_usb_probe(struct usb_interface *interface,
 	const struct usb_device_id *id)
 {
-	int ifnum;
+	int ifnum, i;
 	struct au0828_dev *dev;
 	struct usb_device *usbdev = interface_to_usbdev(interface);
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
 
 	ifnum = interface->altsetting->desc.bInterfaceNumber;
 
@@ -189,6 +193,30 @@ static int au0828_usb_probe(struct usb_interface *interface,
 
 	usb_set_intfdata(interface, dev);
 
+	/* set au0828 usb interface0 to as5 */
+	usb_set_interface(usbdev,
+			  interface->cur_altsetting->desc.bInterfaceNumber, 5);
+
+	/* Figure out which endpoint has the isoc interface */
+	iface_desc = interface->cur_altsetting;
+	for(i = 0; i < iface_desc->desc.bNumEndpoints; i++){
+		endpoint = &iface_desc->endpoint[i].desc;
+		if(((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)	&&
+		   ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_ISOC)){
+
+			/* we find our isoc in endpoint */
+			u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
+			dev->max_pkt_size = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+			dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
+		}
+	}
+	if(!(dev->isoc_in_endpointaddr)) {
+		printk("Could not locate isoc endpoint\n");
+		kfree(dev);
+		return -ENODEV;
+	}
+
+
 	/* Power Up the bridge */
 	au0828_write(dev, REG_600, 1 << 4);
 
@@ -201,6 +229,9 @@ static int au0828_usb_probe(struct usb_interface *interface,
 	/* Setup */
 	au0828_card_setup(dev);
 
+	/* Analog TV */
+	au0828_analog_register(dev);
+
 	/* Digital TV */
 	au0828_dvb_register(dev);