[media] mceusb: add support for cx231xx-based IR (e. g. Polaris)

For now, it adds support for Conexant EVK and for Pixelview.
We should probably find a better way to specify all Conexant
Polaris devices, to avoid needing to repeat this setup on
both mceusb and cx231xx-cards.

Reviewed-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Sri Devi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/media/IR/mceusb.c b/drivers/media/IR/mceusb.c
index 6825da5771f6..a726f63ecfea 100644
--- a/drivers/media/IR/mceusb.c
+++ b/drivers/media/IR/mceusb.c
@@ -104,6 +104,7 @@ static int debug;
 #define VENDOR_NORTHSTAR        0x04eb
 #define VENDOR_REALTEK          0x0bda
 #define VENDOR_TIVO             0x105a
+#define VENDOR_CONEXANT         0x0572
 
 static struct usb_device_id mceusb_dev_table[] = {
         /* Original Microsoft MCE IR Transceiver (often HP-branded) */
@@ -198,6 +199,8 @@ static struct usb_device_id mceusb_dev_table[] = {
         { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
         /* TiVo PC IR Receiver */
         { USB_DEVICE(VENDOR_TIVO, 0x2000) },
+        /* Conexant SDK */
+        { USB_DEVICE(VENDOR_CONEXANT, 0x58a1) },
         /* Terminating entry */
         { }
 };
@@ -229,6 +232,11 @@ static struct usb_device_id std_tx_mask_list[] = {
         {}
 };
 
+static struct usb_device_id cx_polaris_list[] = {
+        { USB_DEVICE(VENDOR_CONEXANT, 0x58a1) },
+        {}
+};
+
 /* data structure for each usb transceiver */
 struct mceusb_dev {
         /* ir-core bits */
@@ -929,6 +937,7 @@ static int __devinit mceusb_dev_probe(struct usb_interface *intf,
         bool is_gen3;
         bool is_microsoft_gen1;
         bool tx_mask_inverted;
+        bool is_polaris;
 
         dev_dbg(&intf->dev, ": %s called\n", __func__);
 
@@ -937,6 +946,13 @@ static int __devinit mceusb_dev_probe(struct usb_interface *intf,
         is_gen3 = usb_match_id(intf, gen3_list) ? 1 : 0;
         is_microsoft_gen1 = usb_match_id(intf, microsoft_gen1_list) ? 1 : 0;
         tx_mask_inverted = usb_match_id(intf, std_tx_mask_list) ? 0 : 1;
+        is_polaris = usb_match_id(intf, cx_polaris_list) ? 1 : 0;
+
+        if (is_polaris) {
+                /* Interface 0 is IR */
+                if (idesc->desc.bInterfaceNumber)
+                        return -ENODEV;
+        }
 
         /* step through the endpoints to find first bulk in and out endpoint */
         for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {