[deliverable/linux.git] / drivers / media / usb / dvb-usb / dvb-usb-dvb.c

/* dvb-usb-dvb.c is part of the DVB USB library.
 *
 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
 * see dvb-usb-init.c for copyright information.
 *
 * This file contains functions for initializing and handling the
 * linux-dvb API.
 */
#include "dvb-usb-common.h"
#include <media/v4l2-mc.h>

/* does the complete input transfer handling */
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
	struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
	int newfeedcount, ret;

	if (adap == NULL)
		return -ENODEV;

	if ((adap->active_fe < 0) ||
	    (adap->active_fe >= adap->num_frontends_initialized)) {
		return -EINVAL;
	}

	newfeedcount = adap->feedcount + (onoff ? 1 : -1);

	/* stop feed before setting a new pid if there will be no pid anymore */
	if (newfeedcount == 0) {
		deb_ts("stop feeding\n");
		usb_urb_kill(&adap->fe_adap[adap->active_fe].stream);

		if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
			ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0);
			if (ret < 0) {
				err("error while stopping stream.");
				return ret;
			}
		}
	}

	adap->feedcount = newfeedcount;

	/* activate the pid on the device specific pid_filter */
	deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",
		adap->fe_adap[adap->active_fe].pid_filtering ?
		"yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid,
		dvbdmxfeed->index, onoff ? "on" : "off");
	if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
		adap->fe_adap[adap->active_fe].pid_filtering &&
		adap->props.fe[adap->active_fe].pid_filter != NULL)
		adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff);

	/* start the feed if this was the first feed and there is still a feed
	 * for reception.
	 */
	if (adap->feedcount == onoff && adap->feedcount > 0) {
		deb_ts("submitting all URBs\n");
		usb_urb_submit(&adap->fe_adap[adap->active_fe].stream);

		deb_ts("controlling pid parser\n");
		if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
			adap->props.fe[adap->active_fe].caps &
			DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
			adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) {
			ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap,
				adap->fe_adap[adap->active_fe].pid_filtering);
			if (ret < 0) {
				err("could not handle pid_parser");
				return ret;
			}
		}
		deb_ts("start feeding\n");
		if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
			ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1);
			if (ret < 0) {
				err("error while enabling fifo.");
				return ret;
			}
		}

	}
	return 0;
}

static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
	deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,
	       dvbdmxfeed->type);
	return dvb_usb_ctrl_feed(dvbdmxfeed, 1);
}

static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
	deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
	return dvb_usb_ctrl_feed(dvbdmxfeed, 0);
}

static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	struct media_device *mdev;
	struct dvb_usb_device *d = adap->dev;
	struct usb_device *udev = d->udev;

	mdev = v4l2_mc_usb_media_device_init(udev, d->desc->name);

	dvb_register_media_controller(&adap->dvb_adap, mdev);

	dev_info(&d->udev->dev, "media controller created\n");
#endif
	return 0;
}

static int  dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	return media_device_register(adap->dvb_adap.mdev);
#else
	return 0;
#endif
}

static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	if (!adap->dvb_adap.mdev)
		return;

	media_device_unregister(adap->dvb_adap.mdev);
	media_device_cleanup(adap->dvb_adap.mdev);
	kfree(adap->dvb_adap.mdev);
	adap->dvb_adap.mdev = NULL;
#endif
}

int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
{
	int i;
	int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
				       adap->dev->owner, &adap->dev->udev->dev,
				       adapter_nums);

	if (ret < 0) {
		deb_info("dvb_register_adapter failed: error %d", ret);
		goto err;
	}
	adap->dvb_adap.priv = adap;

	ret = dvb_usb_media_device_init(adap);
	if (ret < 0) {
		deb_info("dvb_usb_media_device_init failed: error %d", ret);
		goto err_mc;
	}

	if (adap->dev->props.read_mac_address) {
		if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0)
			info("MAC address: %pM", adap->dvb_adap.proposed_mac);
		else
			err("MAC address reading failed.");
	}


	adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
	adap->demux.priv             = adap;

	adap->demux.filternum        = 0;
	for (i = 0; i < adap->props.num_frontends; i++) {
		if (adap->demux.filternum < adap->fe_adap[i].max_feed_count)
			adap->demux.filternum = adap->fe_adap[i].max_feed_count;
	}
	adap->demux.feednum          = adap->demux.filternum;
	adap->demux.start_feed       = dvb_usb_start_feed;
	adap->demux.stop_feed        = dvb_usb_stop_feed;
	adap->demux.write_to_decoder = NULL;
	if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
		err("dvb_dmx_init failed: error %d", ret);
		goto err_dmx;
	}

	adap->dmxdev.filternum       = adap->demux.filternum;
	adap->dmxdev.demux           = &adap->demux.dmx;
	adap->dmxdev.capabilities    = 0;
	if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
		err("dvb_dmxdev_init failed: error %d", ret);
		goto err_dmx_dev;
	}

	if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net,
						&adap->demux.dmx)) < 0) {
		err("dvb_net_init failed: error %d", ret);
		goto err_net_init;
	}

	adap->state |= DVB_USB_ADAP_STATE_DVB;
	return 0;

err_net_init:
	dvb_dmxdev_release(&adap->dmxdev);
err_dmx_dev:
	dvb_dmx_release(&adap->demux);
err_dmx:
	dvb_usb_media_device_unregister(adap);
err_mc:
	dvb_unregister_adapter(&adap->dvb_adap);
err:
	return ret;
}

int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
{
	if (adap->state & DVB_USB_ADAP_STATE_DVB) {
		deb_info("unregistering DVB part\n");
		dvb_net_release(&adap->dvb_net);
		adap->demux.dmx.close(&adap->demux.dmx);
		dvb_dmxdev_release(&adap->dmxdev);
		dvb_dmx_release(&adap->demux);
		dvb_usb_media_device_unregister(adap);
		dvb_unregister_adapter(&adap->dvb_adap);
		adap->state &= ~DVB_USB_ADAP_STATE_DVB;
	}
	return 0;
}

static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
{
	struct dvb_usb_adapter *adap = fe->dvb->priv;

	int ret = (adap->props.frontend_ctrl) ?
		adap->props.frontend_ctrl(fe, onoff) : 0;

	if (ret < 0) {
		err("frontend_ctrl request failed");
		return ret;
	}
	if (onoff)
		adap->active_fe = fe->id;

	return 0;
}

static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
	struct dvb_usb_adapter *adap = fe->dvb->priv;

	dvb_usb_device_power_ctrl(adap->dev, 1);

	dvb_usb_set_active_fe(fe, 1);

	if (adap->fe_adap[fe->id].fe_init)
		adap->fe_adap[fe->id].fe_init(fe);

	return 0;
}

static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
	struct dvb_usb_adapter *adap = fe->dvb->priv;

	if (adap->fe_adap[fe->id].fe_sleep)
		adap->fe_adap[fe->id].fe_sleep(fe);

	dvb_usb_set_active_fe(fe, 0);

	return dvb_usb_device_power_ctrl(adap->dev, 0);
}

int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
{
	int ret, i;

	/* register all given adapter frontends */
	for (i = 0; i < adap->props.num_frontends; i++) {

		if (adap->props.fe[i].frontend_attach == NULL) {
			err("strange: '%s' #%d,%d "
			    "doesn't want to attach a frontend.",
			    adap->dev->desc->name, adap->id, i);

			return 0;
		}

		ret = adap->props.fe[i].frontend_attach(adap);
		if (ret || adap->fe_adap[i].fe == NULL) {
			/* only print error when there is no FE at all */
			if (i == 0)
				err("no frontend was attached by '%s'",
					adap->dev->desc->name);

			return 0;
		}

		adap->fe_adap[i].fe->id = i;

		/* re-assign sleep and wakeup functions */
		adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
		adap->fe_adap[i].fe->ops.init  = dvb_usb_fe_wakeup;
		adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
		adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;

		if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
			err("Frontend %d registration failed.", i);
			dvb_frontend_detach(adap->fe_adap[i].fe);
			adap->fe_adap[i].fe = NULL;
			/* In error case, do not try register more FEs,
			 * still leaving already registered FEs alive. */
			if (i == 0)
				return -ENODEV;
			else
				return 0;
		}

		/* only attach the tuner if the demod is there */
		if (adap->props.fe[i].tuner_attach != NULL)
			adap->props.fe[i].tuner_attach(adap);

		adap->num_frontends_initialized++;
	}
	if (ret)
		return ret;

	ret = dvb_create_media_graph(&adap->dvb_adap, true);
	if (ret)
		return ret;

	ret = dvb_usb_media_device_register(adap);

	return ret;
}

int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
{
	int i = adap->num_frontends_initialized - 1;

	/* unregister all given adapter frontends */
	for (; i >= 0; i--) {
		if (adap->fe_adap[i].fe != NULL) {
			dvb_unregister_frontend(adap->fe_adap[i].fe);
			dvb_frontend_detach(adap->fe_adap[i].fe);
		}
	}
	adap->num_frontends_initialized = 0;

	return 0;
}
Commit	Line	Data
776338e1 JS	1	/* dvb-usb-dvb.c is part of the DVB USB library.
776338e1 JS	2	*
99e44da7	3	* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
776338e1 JS	4	* see dvb-usb-init.c for copyright information.
	5	*
	6	* This file contains functions for initializing and handling the
	7	* linux-dvb API.
	8	*/
	9	#include "dvb-usb-common.h"
67873d4e	10	#include <media/v4l2-mc.h>
776338e1	11
4d43e13f	12	/* does the complete input transfer handling */
776338e1 JS	13	static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
776338e1 JS	14	{
4d43e13f	15	struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
c8b7ced3	16	int newfeedcount, ret;
776338e1	17
4d43e13f	18	if (adap == NULL)
776338e1 JS	19	return -ENODEV;
776338e1 JS	20
2d04c13a MK	21	if ((adap->active_fe < 0) \|\|
2d04c13a MK	22	(adap->active_fe >= adap->num_frontends_initialized)) {
77eed219 MK	23	return -EINVAL;
	24	}
	25
4d43e13f	26	newfeedcount = adap->feedcount + (onoff ? 1 : -1);
776338e1	27
4d43e13f	28	/* stop feed before setting a new pid if there will be no pid anymore */
776338e1 JS	29	if (newfeedcount == 0) {
776338e1 JS	30	deb_ts("stop feeding\n");
77eed219	31	usb_urb_kill(&adap->fe_adap[adap->active_fe].stream);
776338e1	32
77eed219 MK	33	if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
77eed219 MK	34	ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0);
dca6b74b MP	35	if (ret < 0) {
dca6b74b MP	36	err("error while stopping stream.");
c8b7ced3	37	return ret;
dca6b74b	38	}
c8b7ced3	39	}
776338e1 JS	40	}
776338e1 JS	41
4d43e13f	42	adap->feedcount = newfeedcount;
776338e1 JS	43
776338e1 JS	44	/* activate the pid on the device specific pid_filter */
2b7a7c30 MK	45	deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",
	46	adap->fe_adap[adap->active_fe].pid_filtering ?
	47	"yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid,
	48	dvbdmxfeed->index, onoff ? "on" : "off");
77eed219 MK	49	if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
	50	adap->fe_adap[adap->active_fe].pid_filtering &&
	51	adap->props.fe[adap->active_fe].pid_filter != NULL)
	52	adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff);
776338e1 JS	53
	54	/* start the feed if this was the first feed and there is still a feed
	55	* for reception.
	56	*/
4d43e13f	57	if (adap->feedcount == onoff && adap->feedcount > 0) {
8126fdbc	58	deb_ts("submitting all URBs\n");
77eed219	59	usb_urb_submit(&adap->fe_adap[adap->active_fe].stream);
776338e1 JS	60
776338e1 JS	61	deb_ts("controlling pid parser\n");
77eed219 MK	62	if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
77eed219 MK	63	adap->props.fe[adap->active_fe].caps &
c8b7ced3	64	DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
77eed219 MK	65	adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) {
	66	ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap,
	67	adap->fe_adap[adap->active_fe].pid_filtering);
c8b7ced3	68	if (ret < 0) {
776338e1	69	err("could not handle pid_parser");
c8b7ced3 MP	70	return ret;
	71	}
	72	}
776338e1	73	deb_ts("start feeding\n");
77eed219 MK	74	if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
77eed219 MK	75	ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1);
c8b7ced3	76	if (ret < 0) {
776338e1	77	err("error while enabling fifo.");
c8b7ced3	78	return ret;
776338e1	79	}
c8b7ced3	80	}
776338e1	81
776338e1 JS	82	}
	83	return 0;
	84	}
	85
	86	static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
	87	{
e68c2fe6 LB	88	deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,
	89	dvbdmxfeed->type);
	90	return dvb_usb_ctrl_feed(dvbdmxfeed, 1);
776338e1 JS	91	}
	92
	93	static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
	94	{
	95	deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
e68c2fe6	96	return dvb_usb_ctrl_feed(dvbdmxfeed, 0);
776338e1 JS	97	}
776338e1 JS	98
9f806795	99	static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap)
496ccf92 RLLC	100	{
496ccf92 RLLC	101	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
496ccf92	102	struct media_device *mdev;
a3dfc6d9	103	struct dvb_usb_device *d = adap->dev;
496ccf92	104	struct usb_device *udev = d->udev;
496ccf92	105
67873d4e	106	mdev = v4l2_mc_usb_media_device_init(udev, d->desc->name);
9832e155	107
89a2c1d6	108	dvb_register_media_controller(&adap->dvb_adap, mdev);
496ccf92 RLLC	109
496ccf92 RLLC	110	dev_info(&d->udev->dev, "media controller created\n");
496ccf92	111	#endif
9f806795	112	return 0;
496ccf92 RLLC	113	}
496ccf92 RLLC	114
9f806795	115	static int dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
9832e155 JMC	116	{
9832e155 JMC	117	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
9f806795 MCC	118	return media_device_register(adap->dvb_adap.mdev);
	119	#else
	120	return 0;
9832e155 JMC	121	#endif
	122	}
	123
a3dfc6d9	124	static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
496ccf92 RLLC	125	{
496ccf92 RLLC	126	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
a3dfc6d9	127	if (!adap->dvb_adap.mdev)
496ccf92 RLLC	128	return;
496ccf92 RLLC	129
a3dfc6d9	130	media_device_unregister(adap->dvb_adap.mdev);
9832e155	131	media_device_cleanup(adap->dvb_adap.mdev);
a3dfc6d9 MCC	132	kfree(adap->dvb_adap.mdev);
a3dfc6d9 MCC	133	adap->dvb_adap.mdev = NULL;
496ccf92 RLLC	134	#endif
	135	}
	136
78e92006	137	int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter adap, short adapter_nums)
776338e1	138	{
77eed219	139	int i;
78e92006 JG	140	int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
	141	adap->dev->owner, &adap->dev->udev->dev,
	142	adapter_nums);
776338e1	143
78e92006	144	if (ret < 0) {
776338e1 JS	145	deb_info("dvb_register_adapter failed: error %d", ret);
	146	goto err;
	147	}
4d43e13f PB	148	adap->dvb_adap.priv = adap;
4d43e13f PB	149
9f806795 MCC	150	ret = dvb_usb_media_device_init(adap);
	151	if (ret < 0) {
	152	deb_info("dvb_usb_media_device_init failed: error %d", ret);
	153	goto err_mc;
	154	}
496ccf92	155
4d43e13f	156	if (adap->dev->props.read_mac_address) {
e68c2fe6 LB	157	if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0)
e68c2fe6 LB	158	info("MAC address: %pM", adap->dvb_adap.proposed_mac);
776338e1 JS	159	else
	160	err("MAC address reading failed.");
	161	}
	162
	163
4d43e13f PB	164	adap->demux.dmx.capabilities = DMX_TS_FILTERING \| DMX_SECTION_FILTERING;
4d43e13f PB	165	adap->demux.priv = adap;
776338e1	166
77eed219 MK	167	adap->demux.filternum = 0;
	168	for (i = 0; i < adap->props.num_frontends; i++) {
	169	if (adap->demux.filternum < adap->fe_adap[i].max_feed_count)
	170	adap->demux.filternum = adap->fe_adap[i].max_feed_count;
	171	}
	172	adap->demux.feednum = adap->demux.filternum;
4d43e13f PB	173	adap->demux.start_feed = dvb_usb_start_feed;
	174	adap->demux.stop_feed = dvb_usb_stop_feed;
	175	adap->demux.write_to_decoder = NULL;
	176	if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
e68c2fe6	177	err("dvb_dmx_init failed: error %d", ret);
776338e1 JS	178	goto err_dmx;
	179	}
	180
4d43e13f PB	181	adap->dmxdev.filternum = adap->demux.filternum;
	182	adap->dmxdev.demux = &adap->demux.dmx;
	183	adap->dmxdev.capabilities = 0;
	184	if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
e68c2fe6	185	err("dvb_dmxdev_init failed: error %d", ret);
776338e1 JS	186	goto err_dmx_dev;
	187	}
	188
60826f02 JN	189	if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net,
60826f02 JN	190	&adap->demux.dmx)) < 0) {
e68c2fe6	191	err("dvb_net_init failed: error %d", ret);
60826f02 JN	192	goto err_net_init;
60826f02 JN	193	}
776338e1	194
4d43e13f	195	adap->state \|= DVB_USB_ADAP_STATE_DVB;
8397703e TP	196	return 0;
8397703e TP	197
60826f02 JN	198	err_net_init:
60826f02 JN	199	dvb_dmxdev_release(&adap->dmxdev);
776338e1	200	err_dmx_dev:
4d43e13f	201	dvb_dmx_release(&adap->demux);
776338e1	202	err_dmx:
a3dfc6d9	203	dvb_usb_media_device_unregister(adap);
9f806795	204	err_mc:
4d43e13f	205	dvb_unregister_adapter(&adap->dvb_adap);
776338e1 JS	206	err:
776338e1 JS	207	return ret;
776338e1 JS	208	}
776338e1 JS	209
4d43e13f	210	int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
776338e1	211	{
4d43e13f	212	if (adap->state & DVB_USB_ADAP_STATE_DVB) {
776338e1	213	deb_info("unregistering DVB part\n");
4d43e13f PB	214	dvb_net_release(&adap->dvb_net);
	215	adap->demux.dmx.close(&adap->demux.dmx);
	216	dvb_dmxdev_release(&adap->dmxdev);
	217	dvb_dmx_release(&adap->demux);
a3dfc6d9	218	dvb_usb_media_device_unregister(adap);
4d43e13f PB	219	dvb_unregister_adapter(&adap->dvb_adap);
4d43e13f PB	220	adap->state &= ~DVB_USB_ADAP_STATE_DVB;
776338e1 JS	221	}
	222	return 0;
	223	}
	224
77eed219 MK	225	static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
	226	{
	227	struct dvb_usb_adapter *adap = fe->dvb->priv;
	228
	229	int ret = (adap->props.frontend_ctrl) ?
	230	adap->props.frontend_ctrl(fe, onoff) : 0;
	231
	232	if (ret < 0) {
	233	err("frontend_ctrl request failed");
	234	return ret;
	235	}
	236	if (onoff)
	237	adap->active_fe = fe->id;
	238
	239	return 0;
	240	}
	241
776338e1 JS	242	static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
776338e1 JS	243	{
4d43e13f	244	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	245
4d43e13f	246	dvb_usb_device_power_ctrl(adap->dev, 1);
776338e1	247
77eed219	248	dvb_usb_set_active_fe(fe, 1);
9bd9e3bd	249
77eed219 MK	250	if (adap->fe_adap[fe->id].fe_init)
77eed219 MK	251	adap->fe_adap[fe->id].fe_init(fe);
776338e1 JS	252
	253	return 0;
	254	}
	255
	256	static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
	257	{
4d43e13f	258	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	259
77eed219 MK	260	if (adap->fe_adap[fe->id].fe_sleep)
77eed219 MK	261	adap->fe_adap[fe->id].fe_sleep(fe);
9bd9e3bd	262
77eed219	263	dvb_usb_set_active_fe(fe, 0);
776338e1	264
4d43e13f	265	return dvb_usb_device_power_ctrl(adap->dev, 0);
776338e1 JS	266	}
776338e1 JS	267
4d43e13f	268	int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
776338e1	269	{
77eed219	270	int ret, i;
9bd9e3bd	271
77eed219 MK	272	/* register all given adapter frontends */
77eed219 MK	273	for (i = 0; i < adap->props.num_frontends; i++) {
9bd9e3bd	274
77eed219 MK	275	if (adap->props.fe[i].frontend_attach == NULL) {
	276	err("strange: '%s' #%d,%d "
	277	"doesn't want to attach a frontend.",
	278	adap->dev->desc->name, adap->id, i);
9bd9e3bd	279
77eed219 MK	280	return 0;
77eed219 MK	281	}
776338e1	282
77eed219 MK	283	ret = adap->props.fe[i].frontend_attach(adap);
77eed219 MK	284	if (ret \|\| adap->fe_adap[i].fe == NULL) {
9bd9e3bd AP	285	/* only print error when there is no FE at all */
	286	if (i == 0)
	287	err("no frontend was attached by '%s'",
	288	adap->dev->desc->name);
	289
	290	return 0;
	291	}
776338e1	292
77eed219	293	adap->fe_adap[i].fe->id = i;
9bd9e3bd AP	294
9bd9e3bd AP	295	/* re-assign sleep and wakeup functions */
77eed219 MK	296	adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
	297	adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup;
	298	adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
	299	adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;
9bd9e3bd	300
77eed219	301	if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
9bd9e3bd	302	err("Frontend %d registration failed.", i);
77eed219 MK	303	dvb_frontend_detach(adap->fe_adap[i].fe);
77eed219 MK	304	adap->fe_adap[i].fe = NULL;
9bd9e3bd AP	305	/* In error case, do not try register more FEs,
	306	* still leaving already registered FEs alive. */
	307	if (i == 0)
	308	return -ENODEV;
	309	else
	310	return 0;
776338e1	311	}
5a19f312 PB	312
5a19f312 PB	313	/* only attach the tuner if the demod is there */
77eed219 MK	314	if (adap->props.fe[i].tuner_attach != NULL)
	315	adap->props.fe[i].tuner_attach(adap);
	316
	317	adap->num_frontends_initialized++;
9bd9e3bd	318	}
0d3ab841 MCC	319	if (ret)
0d3ab841 MCC	320	return ret;
776338e1	321
0230d60e	322	ret = dvb_create_media_graph(&adap->dvb_adap, true);
9f806795 MCC	323	if (ret)
9f806795 MCC	324	return ret;
496ccf92	325
9f806795	326	ret = dvb_usb_media_device_register(adap);
9832e155	327
0d3ab841	328	return ret;
776338e1 JS	329	}
776338e1 JS	330
4d43e13f	331	int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
776338e1	332	{
77eed219	333	int i = adap->num_frontends_initialized - 1;
9bd9e3bd AP	334
9bd9e3bd AP	335	/* unregister all given adapter frontends */
9bd9e3bd	336	for (; i >= 0; i--) {
77eed219 MK	337	if (adap->fe_adap[i].fe != NULL) {
	338	dvb_unregister_frontend(adap->fe_adap[i].fe);
	339	dvb_frontend_detach(adap->fe_adap[i].fe);
9bd9e3bd	340	}
4e66c97c	341	}
77eed219	342	adap->num_frontends_initialized = 0;
9bd9e3bd	343
776338e1 JS	344	return 0;
776338e1 JS	345	}