mutex_lock(&dvb->lock);
dvb->nfeeds--;
if (0 == dvb->nfeeds && NULL != dvb->thread) {
- // FIXME: cx8802_cancel_buffers(dev);
err = kthread_stop(dvb->thread);
dvb->thread = NULL;
}
return err;
}
-/* ------------------------------------------------------------------ */
-
-int videobuf_dvb_register(struct videobuf_dvb *dvb,
+static int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe,
struct module *module,
void *adapter_priv,
struct device *device,
- short *adapter_nr)
+ char *adapter_name,
+ short *adapter_nr,
+ int mfe_shared)
{
int result;
- mutex_init(&dvb->lock);
+ mutex_init(&fe->lock);
/* register adapter */
- result = dvb_register_adapter(&dvb->adapter, dvb->name, module, device,
- adapter_nr);
+ result = dvb_register_adapter(&fe->adapter, adapter_name, module,
+ device, adapter_nr);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
- dvb->name, result);
- goto fail_adapter;
+ adapter_name, result);
}
- dvb->adapter.priv = adapter_priv;
+ fe->adapter.priv = adapter_priv;
+ fe->adapter.mfe_shared = mfe_shared;
+
+ return result;
+}
+
+static int videobuf_dvb_register_frontend(struct dvb_adapter *adapter,
+ struct videobuf_dvb *dvb)
+{
+ int result;
/* register frontend */
- result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+ result = dvb_register_frontend(adapter, dvb->frontend);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
dvb->name, result);
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = &dvb->demux.dmx;
dvb->dmxdev.capabilities = 0;
- result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+ result = dvb_dmxdev_init(&dvb->dmxdev, adapter);
+
if (result < 0) {
printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
dvb->name, result);
}
/* register network adapter */
- dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+ dvb_net_init(adapter, &dvb->net, &dvb->demux.dmx);
+ if (dvb->net.dvbdev == NULL) {
+ result = -ENOMEM;
+ goto fail_fe_conn;
+ }
return 0;
fail_fe_conn:
dvb_unregister_frontend(dvb->frontend);
fail_frontend:
dvb_frontend_detach(dvb->frontend);
- dvb_unregister_adapter(&dvb->adapter);
-fail_adapter:
+ dvb->frontend = NULL;
+
return result;
}
-void videobuf_dvb_unregister(struct videobuf_dvb *dvb)
+/* ------------------------------------------------------------------ */
+/* Register a single adapter and one or more frontends */
+int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f,
+ struct module *module,
+ void *adapter_priv,
+ struct device *device,
+ short *adapter_nr,
+ int mfe_shared)
{
- dvb_net_release(&dvb->net);
- dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
- dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
- dvb_dmxdev_release(&dvb->dmxdev);
- dvb_dmx_release(&dvb->demux);
- dvb_unregister_frontend(dvb->frontend);
- dvb_frontend_detach(dvb->frontend);
- dvb_unregister_adapter(&dvb->adapter);
+ struct list_head *list, *q;
+ struct videobuf_dvb_frontend *fe;
+ int res;
+
+ fe = videobuf_dvb_get_frontend(f, 1);
+ if (!fe) {
+ printk(KERN_WARNING "Unable to register the adapter which has no frontends\n");
+ return -EINVAL;
+ }
+
+ /* Bring up the adapter */
+ res = videobuf_dvb_register_adapter(f, module, adapter_priv, device,
+ fe->dvb.name, adapter_nr, mfe_shared);
+ if (res < 0) {
+ printk(KERN_WARNING "videobuf_dvb_register_adapter failed (errno = %d)\n", res);
+ return res;
+ }
+
+ /* Attach all of the frontends to the adapter */
+ mutex_lock(&f->lock);
+ list_for_each_safe(list, q, &f->felist) {
+ fe = list_entry(list, struct videobuf_dvb_frontend, felist);
+ res = videobuf_dvb_register_frontend(&f->adapter, &fe->dvb);
+ if (res < 0) {
+ printk(KERN_WARNING "%s: videobuf_dvb_register_frontend failed (errno = %d)\n",
+ fe->dvb.name, res);
+ goto err;
+ }
+ }
+ mutex_unlock(&f->lock);
+ return 0;
+
+err:
+ mutex_unlock(&f->lock);
+ videobuf_dvb_unregister_bus(f);
+ return res;
+}
+EXPORT_SYMBOL(videobuf_dvb_register_bus);
+
+void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f)
+{
+ videobuf_dvb_dealloc_frontends(f);
+
+ dvb_unregister_adapter(&f->adapter);
}
+EXPORT_SYMBOL(videobuf_dvb_unregister_bus);
-EXPORT_SYMBOL(videobuf_dvb_register);
-EXPORT_SYMBOL(videobuf_dvb_unregister);
+struct videobuf_dvb_frontend *videobuf_dvb_get_frontend(
+ struct videobuf_dvb_frontends *f, int id)
+{
+ struct list_head *list, *q;
+ struct videobuf_dvb_frontend *fe, *ret = NULL;
-/* ------------------------------------------------------------------ */
-/*
- * Local variables:
- * c-basic-offset: 8
- * compile-command: "make DVB=1"
- * End:
- */
+ mutex_lock(&f->lock);
+
+ list_for_each_safe(list, q, &f->felist) {
+ fe = list_entry(list, struct videobuf_dvb_frontend, felist);
+ if (fe->id == id) {
+ ret = fe;
+ break;
+ }
+ }
+
+ mutex_unlock(&f->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(videobuf_dvb_get_frontend);
+
+int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f,
+ struct dvb_frontend *p)
+{
+ struct list_head *list, *q;
+ struct videobuf_dvb_frontend *fe = NULL;
+ int ret = 0;
+
+ mutex_lock(&f->lock);
+
+ list_for_each_safe(list, q, &f->felist) {
+ fe = list_entry(list, struct videobuf_dvb_frontend, felist);
+ if (fe->dvb.frontend == p) {
+ ret = fe->id;
+ break;
+ }
+ }
+
+ mutex_unlock(&f->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(videobuf_dvb_find_frontend);
+
+struct videobuf_dvb_frontend *videobuf_dvb_alloc_frontend(
+ struct videobuf_dvb_frontends *f, int id)
+{
+ struct videobuf_dvb_frontend *fe;
+
+ fe = kzalloc(sizeof(struct videobuf_dvb_frontend), GFP_KERNEL);
+ if (fe == NULL)
+ goto fail_alloc;
+
+ fe->id = id;
+ mutex_init(&fe->dvb.lock);
+
+ mutex_lock(&f->lock);
+ list_add_tail(&fe->felist, &f->felist);
+ mutex_unlock(&f->lock);
+
+fail_alloc:
+ return fe;
+}
+EXPORT_SYMBOL(videobuf_dvb_alloc_frontend);
+
+void videobuf_dvb_dealloc_frontends(struct videobuf_dvb_frontends *f)
+{
+ struct list_head *list, *q;
+ struct videobuf_dvb_frontend *fe;
+
+ mutex_lock(&f->lock);
+ list_for_each_safe(list, q, &f->felist) {
+ fe = list_entry(list, struct videobuf_dvb_frontend, felist);
+ if (fe->dvb.net.dvbdev) {
+ dvb_net_release(&fe->dvb.net);
+ fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx,
+ &fe->dvb.fe_mem);
+ fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx,
+ &fe->dvb.fe_hw);
+ dvb_dmxdev_release(&fe->dvb.dmxdev);
+ dvb_dmx_release(&fe->dvb.demux);
+ dvb_unregister_frontend(fe->dvb.frontend);
+ }
+ if (fe->dvb.frontend)
+ /* always allocated, may have been reset */
+ dvb_frontend_detach(fe->dvb.frontend);
+ list_del(list); /* remove list entry */
+ kfree(fe); /* free frontend allocation */
+ }
+ mutex_unlock(&f->lock);
+}
+EXPORT_SYMBOL(videobuf_dvb_dealloc_frontends);
projects / linux-2.6-omap-h63xx.git / blobdiff