[media] cx88: added XC4000 tuner callback and DVB attach functions

Added functions for XC4000 tuner reset and attaching DVB frontend.

Signed-off-by: Istvan Varga <istvan_v@mailbox.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index c69df7ebb6a..f0fbff499f0 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/drivers/media/video/cx88/cx88-dvb.c
@@ -41,6 +41,7 @@
 #include "or51132.h"
 #include "lgdt330x.h"
 #include "s5h1409.h"
+#include "xc4000.h"
 #include "xc5000.h"
 #include "nxt200x.h"
 #include "cx24123.h"
@@ -605,6 +606,39 @@ static int attach_xc3028(u8 addr, struct cx8802_dev *dev)
         return 0;
 }
 
+static int attach_xc4000(struct cx8802_dev *dev, struct xc4000_config *cfg)
+{
+        struct dvb_frontend *fe;
+        struct videobuf_dvb_frontend *fe0 = NULL;
+
+        /* Get the first frontend */
+        fe0 = videobuf_dvb_get_frontend(&dev->frontends, 1);
+        if (!fe0)
+                return -EINVAL;
+
+        if (!fe0->dvb.frontend) {
+                printk(KERN_ERR "%s/2: dvb frontend not attached. "
+                                "Can't attach xc4000\n",
+                       dev->core->name);
+                return -EINVAL;
+        }
+
+        fe = dvb_attach(xc4000_attach, fe0->dvb.frontend, &dev->core->i2c_adap,
+                        cfg);
+        if (!fe) {
+                printk(KERN_ERR "%s/2: xc4000 attach failed\n",
+                       dev->core->name);
+                dvb_frontend_detach(fe0->dvb.frontend);
+                dvb_unregister_frontend(fe0->dvb.frontend);
+                fe0->dvb.frontend = NULL;
+                return -EINVAL;
+        }
+
+        printk(KERN_INFO "%s/2: xc4000 attached\n", dev->core->name);
+
+        return 0;
+}
+
 static int cx24116_set_ts_param(struct dvb_frontend *fe,
         int is_punctured)
 {