V4L/DVB (4665): Add frontend structure callback for bus acquisition.

[profile/ivi/kernel-adaptation-intel-automotive.git] / drivers / media / dvb / dvb-core / dvb_frontend.c

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 5e8bb41..53304e6 100644 (file)
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -526,7 +526,9 @@ static int dvb_frontend_thread(void *data)
        fepriv->delay = 3*HZ;
        fepriv->status = 0;
        fepriv->wakeup = 0;
-       fepriv->reinitialise = 1;
+       fepriv->reinitialise = 0;
+
+       dvb_frontend_init(fe);
 
        while (1) {
                up(&fepriv->sem);           /* is locked when we enter the thread... */
@@ -570,7 +572,8 @@ static int dvb_frontend_thread(void *data)
                                        dvb_frontend_add_event(fe, s);
                                        fepriv->status = s;
                                }
-                       }
+                       } else
+                               dvb_frontend_swzigzag(fe);
                } else
                        dvb_frontend_swzigzag(fe);
        }
@@ -975,6 +978,7 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
 
        case FE_SET_FRONTEND_TUNE_MODE:
                fepriv->tune_mode_flags = (unsigned long) parg;
+               err = 0;
                break;
        };
 
@@ -1010,18 +1014,26 @@ static int dvb_frontend_open(struct inode *inode, struct file *file)
        if ((ret = dvb_generic_open (inode, file)) < 0)
                return ret;
 
-       if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
-               ret = dvb_frontend_start (fe);
-               if (ret)
+       if (fe->ops.ts_bus_ctrl) {
+               if ((ret = fe->ops.ts_bus_ctrl (fe, 1)) < 0) {
                        dvb_generic_release (inode, file);
+                       return ret;
+               }
+       }
 
-               /*  empty event queue */
-               fepriv->events.eventr = fepriv->events.eventw = 0;
+       if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 
                /* normal tune mode when opened R/W */
                fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT;
                fepriv->tone = -1;
                fepriv->voltage = -1;
+
+               ret = dvb_frontend_start (fe);
+               if (ret)
+                       dvb_generic_release (inode, file);
+
+               /*  empty event queue */
+               fepriv->events.eventr = fepriv->events.eventw = 0;
        }
 
        return ret;
@@ -1038,6 +1050,9 @@ static int dvb_frontend_release(struct inode *inode, struct file *file)
        if ((file->f_flags & O_ACCMODE) != O_RDONLY)
                fepriv->release_jiffies = jiffies;
 
+       if (fe->ops.ts_bus_ctrl)
+               fe->ops.ts_bus_ctrl (fe, 0);
+
        return dvb_generic_release (inode, file);
 }
 
@@ -1100,18 +1115,42 @@ int dvb_unregister_frontend(struct dvb_frontend* fe)
        mutex_lock(&frontend_mutex);
        dvb_unregister_device (fepriv->dvbdev);
        dvb_frontend_stop (fe);
-       if (fe->ops.tuner_ops.release) {
-               fe->ops.tuner_ops.release(fe);
-               if (fe->ops.i2c_gate_ctrl)
-                       fe->ops.i2c_gate_ctrl(fe, 0);
-       }
-       if (fe->ops.release)
-               fe->ops.release(fe);
-       else
-               printk("dvb_frontend: Demodulator (%s) does not have a release callback!\n", fe->ops.info.name);
+
        /* fe is invalid now */
        kfree(fepriv);
        mutex_unlock(&frontend_mutex);
        return 0;
 }
 EXPORT_SYMBOL(dvb_unregister_frontend);
+
+#ifdef CONFIG_DVB_CORE_ATTACH
+void dvb_frontend_detach(struct dvb_frontend* fe)
+{
+       void *ptr;
+
+       if (fe->ops.release_sec) {
+               fe->ops.release_sec(fe);
+               symbol_put_addr(fe->ops.release_sec);
+       }
+       if (fe->ops.tuner_ops.release) {
+               fe->ops.tuner_ops.release(fe);
+               symbol_put_addr(fe->ops.tuner_ops.release);
+       }
+       ptr = (void*)fe->ops.release;
+       if (ptr) {
+               fe->ops.release(fe);
+               symbol_put_addr(ptr);
+       }
+}
+#else
+void dvb_frontend_detach(struct dvb_frontend* fe)
+{
+       if (fe->ops.release_sec)
+               fe->ops.release_sec(fe);
+       if (fe->ops.tuner_ops.release)
+               fe->ops.tuner_ops.release(fe);
+       if (fe->ops.release)
+               fe->ops.release(fe);
+}
+#endif
+EXPORT_SYMBOL(dvb_frontend_detach);