X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fmedia%2Fvideo%2Fvideobuf-dvb.c;h=0e7dcba8e4ae08aa902a0a4c06213630d077bb76;hb=5b34653963de7a6d0d8c783527457d68fddc60fb;hp=a0a80e1e79e3c08aec59c2e99241eb59f9e6ff0c;hpb=92abe9ee374599179033f039b095864a9cf74593;p=linux-2.6-omap-h63xx.git diff --git a/drivers/media/video/videobuf-dvb.c b/drivers/media/video/videobuf-dvb.c index a0a80e1e79e..0e7dcba8e4a 100644 --- a/drivers/media/video/videobuf-dvb.c +++ b/drivers/media/video/videobuf-dvb.c @@ -126,7 +126,6 @@ static int videobuf_dvb_stop_feed(struct dvb_demux_feed *feed) 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; } @@ -134,71 +133,33 @@ static int videobuf_dvb_stop_feed(struct dvb_demux_feed *feed) return err; } -/* ------------------------------------------------------------------ */ -/* 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) //NEW -{ - struct list_head *list, *q; - struct videobuf_dvb_frontend *fe; - int res = -EINVAL; - - fe = videobuf_dvb_get_frontend(f, 1); - if (!fe) { - printk(KERN_WARNING "Unable to register the adapter which has no frontends\n"); - goto err; - } - - /* Bring up the adapter */ - res = videobuf_dvb_register_adapter(f, module, adapter_priv, device, fe->dvb.name, adapter_nr); //NEW - if (res < 0) { - printk(KERN_WARNING "videobuf_dvb_register_adapter failed (errno = %d)\n", res); - goto err; - } - - /* Attach all of the frontends to the adapter */ - mutex_lock(&f->lock); - list_for_each_safe(list, q, &f->frontend.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); - } - } - mutex_unlock(&f->lock); - -err: - return res; -} - -int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe, +static int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *fe, struct module *module, void *adapter_priv, struct device *device, char *adapter_name, - short *adapter_nr) //NEW + short *adapter_nr, + int mfe_shared) { int result; mutex_init(&fe->lock); /* register adapter */ - result = dvb_register_adapter(&fe->adapter, adapter_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", adapter_name, result); } fe->adapter.priv = adapter_priv; + fe->adapter.mfe_shared = mfe_shared; return result; } -int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb) +static int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, + struct videobuf_dvb *dvb) { int result; @@ -262,6 +223,10 @@ int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_ /* register network adapter */ 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: @@ -276,44 +241,76 @@ fail_dmx: dvb_unregister_frontend(dvb->frontend); fail_frontend: dvb_frontend_detach(dvb->frontend); - dvb_unregister_adapter(adapter); + dvb->frontend = NULL; return result; } -void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f) +/* ------------------------------------------------------------------ */ +/* 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) { struct list_head *list, *q; struct videobuf_dvb_frontend *fe; + int res; - mutex_lock(&f->lock); - list_for_each_safe(list, q, &f->frontend.felist) { - fe = list_entry(list, struct videobuf_dvb_frontend, felist); + fe = videobuf_dvb_get_frontend(f, 1); + if (!fe) { + printk(KERN_WARNING "Unable to register the adapter which has no frontends\n"); + return -EINVAL; + } - 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); - dvb_frontend_detach(fe->dvb.frontend); + /* 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; + } - list_del(list); - kfree(fe); + /* 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); -struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id) +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; mutex_lock(&f->lock); - list_for_each_safe(list, q, &f->frontend.felist) { + list_for_each_safe(list, q, &f->felist) { fe = list_entry(list, struct videobuf_dvb_frontend, felist); if (fe->id == id) { ret = fe; @@ -325,8 +322,10 @@ struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_fro return ret; } +EXPORT_SYMBOL(videobuf_dvb_get_frontend); -int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_frontend *p) +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; @@ -334,7 +333,7 @@ int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_fron mutex_lock(&f->lock); - list_for_each_safe(list, q, &f->frontend.felist) { + 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; @@ -346,37 +345,53 @@ int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_fron return ret; } +EXPORT_SYMBOL(videobuf_dvb_find_frontend); -struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct videobuf_dvb_frontends *f, int id) +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); + fe = kzalloc(sizeof(struct videobuf_dvb_frontend), GFP_KERNEL); if (fe == NULL) goto fail_alloc; - fe->dev = private; fe->id = id; mutex_init(&fe->dvb.lock); mutex_lock(&f->lock); - list_add_tail(&fe->felist,&f->frontend.felist); + list_add_tail(&fe->felist, &f->felist); mutex_unlock(&f->lock); fail_alloc: return fe; } - -EXPORT_SYMBOL(videobuf_dvb_register_bus); -EXPORT_SYMBOL(videobuf_dvb_unregister_bus); EXPORT_SYMBOL(videobuf_dvb_alloc_frontend); -EXPORT_SYMBOL(videobuf_dvb_get_frontend); -EXPORT_SYMBOL(videobuf_dvb_find_frontend); -/* ------------------------------------------------------------------ */ -/* - * Local variables: - * c-basic-offset: 8 - * compile-command: "make DVB=1" - * End: - */ +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);