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[media] dvb-usb-v2: create one media_dev per adapter

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Instead of assuming just one adapter, change the code to store
one media controller per adapter.

This works fine for dvb-usb, as, on all drivers here, it is not
possible to write a media graph that would mix resources between
the two different adapters.

Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2015-02-25 14:07:42 -03:00
parent 6f6c77d8d2
commit 823b460ee7
2 changed files with 14 additions and 17 deletions
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4
drivers/media/usb/dvb-usb-v2/dvb_usb.h
View File

@ -392,10 +392,6 @@ struct dvb_usb_device {
struct delayed_work rc_query_work;
void *priv;
#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
struct media_device *media_dev;
#endif
};
extern int dvb_usbv2_probe(struct usb_interface *,

27
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
View File

@ -400,11 +400,11 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
return ret;
}
static void dvb_usbv2_media_device_register(struct dvb_usb_device *d)
static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
struct media_device *mdev;
struct dvb_usb_device *d = adap_to_d(adap);
struct usb_device *udev = d->udev;
int ret;
@ -429,22 +429,23 @@ static void dvb_usbv2_media_device_register(struct dvb_usb_device *d)
return;
}
d->media_dev = mdev;
adap->dvb_adap.mdev = mdev;
dev_info(&d->udev->dev, "media controller created\n");
#endif
}
static void dvb_usbv2_media_device_unregister(struct dvb_usb_device *d)
static void dvb_usbv2_media_device_unregister(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
if (!d->media_dev)
if (!adap->dvb_adap.mdev)
return;
media_device_unregister(d->media_dev);
kfree(d->media_dev);
d->media_dev = NULL;
media_device_unregister(adap->dvb_adap.mdev);
kfree(adap->dvb_adap.mdev);
adap->dvb_adap.mdev = NULL;
#endif
}
@ -453,6 +454,7 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
{
int ret;
struct dvb_usb_device *d = adap_to_d(adap);
dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner,
@ -466,8 +468,7 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
adap->dvb_adap.priv = adap;
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
dvb_usbv2_media_device_register(d);
adap->dvb_adap.mdev = d->media_dev;
dvb_usbv2_media_device_register(adap);
#endif
if (d->props->read_mac_address) {
@ -518,7 +519,7 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
err_dvb_dmxdev_init:
dvb_dmx_release(&adap->demux);
err_dvb_dmx_init:
dvb_usbv2_media_device_unregister(d);
dvb_usbv2_media_device_unregister(adap);
dvb_unregister_adapter(&adap->dvb_adap);
err_dvb_register_adapter:
adap->dvb_adap.priv = NULL;
@ -537,7 +538,7 @@ static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap)
adap->demux.dmx.close(&adap->demux.dmx);
dvb_dmxdev_release(&adap->dmxdev);
dvb_dmx_release(&adap->demux);
dvb_usbv2_media_device_unregister(d);
dvb_usbv2_media_device_unregister(adap);
dvb_unregister_adapter(&adap->dvb_adap);
}
@ -701,7 +702,7 @@ static int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
}
}
dvb_create_media_graph(d->media_dev);
dvb_create_media_graph(adap->dvb_adap.mdev);
return 0;