[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/media-device.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 = kzalloc(sizeof(*mdev), GFP_KERNEL);
	if (!mdev)
		return -ENOMEM;

	media_device_usb_init(mdev, 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"
41b44e35	10	#include <media/media-device.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
6cf5dad1 MCC	106	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
	107	if (!mdev)
	108	return -ENOMEM;
	109
	110	media_device_usb_init(mdev, udev, d->desc->name);
9832e155	111
89a2c1d6	112	dvb_register_media_controller(&adap->dvb_adap, mdev);
496ccf92 RLLC	113
496ccf92 RLLC	114	dev_info(&d->udev->dev, "media controller created\n");
496ccf92	115	#endif
9f806795	116	return 0;
496ccf92 RLLC	117	}
496ccf92 RLLC	118
9f806795	119	static int dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
9832e155 JMC	120	{
9832e155 JMC	121	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
9f806795 MCC	122	return media_device_register(adap->dvb_adap.mdev);
	123	#else
	124	return 0;
9832e155 JMC	125	#endif
	126	}
	127
a3dfc6d9	128	static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
496ccf92 RLLC	129	{
496ccf92 RLLC	130	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
a3dfc6d9	131	if (!adap->dvb_adap.mdev)
496ccf92 RLLC	132	return;
496ccf92 RLLC	133
a3dfc6d9	134	media_device_unregister(adap->dvb_adap.mdev);
9832e155	135	media_device_cleanup(adap->dvb_adap.mdev);
a3dfc6d9 MCC	136	kfree(adap->dvb_adap.mdev);
a3dfc6d9 MCC	137	adap->dvb_adap.mdev = NULL;
496ccf92 RLLC	138	#endif
	139	}
	140
78e92006	141	int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter adap, short adapter_nums)
776338e1	142	{
77eed219	143	int i;
78e92006 JG	144	int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
	145	adap->dev->owner, &adap->dev->udev->dev,
	146	adapter_nums);
776338e1	147
78e92006	148	if (ret < 0) {
776338e1 JS	149	deb_info("dvb_register_adapter failed: error %d", ret);
	150	goto err;
	151	}
4d43e13f PB	152	adap->dvb_adap.priv = adap;
4d43e13f PB	153
9f806795 MCC	154	ret = dvb_usb_media_device_init(adap);
	155	if (ret < 0) {
	156	deb_info("dvb_usb_media_device_init failed: error %d", ret);
	157	goto err_mc;
	158	}
496ccf92	159
4d43e13f	160	if (adap->dev->props.read_mac_address) {
e68c2fe6 LB	161	if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0)
e68c2fe6 LB	162	info("MAC address: %pM", adap->dvb_adap.proposed_mac);
776338e1 JS	163	else
	164	err("MAC address reading failed.");
	165	}
	166
	167
4d43e13f PB	168	adap->demux.dmx.capabilities = DMX_TS_FILTERING \| DMX_SECTION_FILTERING;
4d43e13f PB	169	adap->demux.priv = adap;
776338e1	170
77eed219 MK	171	adap->demux.filternum = 0;
	172	for (i = 0; i < adap->props.num_frontends; i++) {
	173	if (adap->demux.filternum < adap->fe_adap[i].max_feed_count)
	174	adap->demux.filternum = adap->fe_adap[i].max_feed_count;
	175	}
	176	adap->demux.feednum = adap->demux.filternum;
4d43e13f PB	177	adap->demux.start_feed = dvb_usb_start_feed;
	178	adap->demux.stop_feed = dvb_usb_stop_feed;
	179	adap->demux.write_to_decoder = NULL;
	180	if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
e68c2fe6	181	err("dvb_dmx_init failed: error %d", ret);
776338e1 JS	182	goto err_dmx;
	183	}
	184
4d43e13f PB	185	adap->dmxdev.filternum = adap->demux.filternum;
	186	adap->dmxdev.demux = &adap->demux.dmx;
	187	adap->dmxdev.capabilities = 0;
	188	if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
e68c2fe6	189	err("dvb_dmxdev_init failed: error %d", ret);
776338e1 JS	190	goto err_dmx_dev;
	191	}
	192
60826f02 JN	193	if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net,
60826f02 JN	194	&adap->demux.dmx)) < 0) {
e68c2fe6	195	err("dvb_net_init failed: error %d", ret);
60826f02 JN	196	goto err_net_init;
60826f02 JN	197	}
776338e1	198
4d43e13f	199	adap->state \|= DVB_USB_ADAP_STATE_DVB;
8397703e TP	200	return 0;
8397703e TP	201
60826f02 JN	202	err_net_init:
60826f02 JN	203	dvb_dmxdev_release(&adap->dmxdev);
776338e1	204	err_dmx_dev:
4d43e13f	205	dvb_dmx_release(&adap->demux);
776338e1	206	err_dmx:
a3dfc6d9	207	dvb_usb_media_device_unregister(adap);
9f806795	208	err_mc:
4d43e13f	209	dvb_unregister_adapter(&adap->dvb_adap);
776338e1 JS	210	err:
776338e1 JS	211	return ret;
776338e1 JS	212	}
776338e1 JS	213
4d43e13f	214	int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
776338e1	215	{
4d43e13f	216	if (adap->state & DVB_USB_ADAP_STATE_DVB) {
776338e1	217	deb_info("unregistering DVB part\n");
4d43e13f PB	218	dvb_net_release(&adap->dvb_net);
	219	adap->demux.dmx.close(&adap->demux.dmx);
	220	dvb_dmxdev_release(&adap->dmxdev);
	221	dvb_dmx_release(&adap->demux);
a3dfc6d9	222	dvb_usb_media_device_unregister(adap);
4d43e13f PB	223	dvb_unregister_adapter(&adap->dvb_adap);
4d43e13f PB	224	adap->state &= ~DVB_USB_ADAP_STATE_DVB;
776338e1 JS	225	}
	226	return 0;
	227	}
	228
77eed219 MK	229	static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
	230	{
	231	struct dvb_usb_adapter *adap = fe->dvb->priv;
	232
	233	int ret = (adap->props.frontend_ctrl) ?
	234	adap->props.frontend_ctrl(fe, onoff) : 0;
	235
	236	if (ret < 0) {
	237	err("frontend_ctrl request failed");
	238	return ret;
	239	}
	240	if (onoff)
	241	adap->active_fe = fe->id;
	242
	243	return 0;
	244	}
	245
776338e1 JS	246	static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
776338e1 JS	247	{
4d43e13f	248	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	249
4d43e13f	250	dvb_usb_device_power_ctrl(adap->dev, 1);
776338e1	251
77eed219	252	dvb_usb_set_active_fe(fe, 1);
9bd9e3bd	253
77eed219 MK	254	if (adap->fe_adap[fe->id].fe_init)
77eed219 MK	255	adap->fe_adap[fe->id].fe_init(fe);
776338e1 JS	256
	257	return 0;
	258	}
	259
	260	static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
	261	{
4d43e13f	262	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	263
77eed219 MK	264	if (adap->fe_adap[fe->id].fe_sleep)
77eed219 MK	265	adap->fe_adap[fe->id].fe_sleep(fe);
9bd9e3bd	266
77eed219	267	dvb_usb_set_active_fe(fe, 0);
776338e1	268
4d43e13f	269	return dvb_usb_device_power_ctrl(adap->dev, 0);
776338e1 JS	270	}
776338e1 JS	271
4d43e13f	272	int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
776338e1	273	{
77eed219	274	int ret, i;
9bd9e3bd	275
77eed219 MK	276	/* register all given adapter frontends */
77eed219 MK	277	for (i = 0; i < adap->props.num_frontends; i++) {
9bd9e3bd	278
77eed219 MK	279	if (adap->props.fe[i].frontend_attach == NULL) {
	280	err("strange: '%s' #%d,%d "
	281	"doesn't want to attach a frontend.",
	282	adap->dev->desc->name, adap->id, i);
9bd9e3bd	283
77eed219 MK	284	return 0;
77eed219 MK	285	}
776338e1	286
77eed219 MK	287	ret = adap->props.fe[i].frontend_attach(adap);
77eed219 MK	288	if (ret \|\| adap->fe_adap[i].fe == NULL) {
9bd9e3bd AP	289	/* only print error when there is no FE at all */
	290	if (i == 0)
	291	err("no frontend was attached by '%s'",
	292	adap->dev->desc->name);
	293
	294	return 0;
	295	}
776338e1	296
77eed219	297	adap->fe_adap[i].fe->id = i;
9bd9e3bd AP	298
9bd9e3bd AP	299	/* re-assign sleep and wakeup functions */
77eed219 MK	300	adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
	301	adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup;
	302	adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
	303	adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;
9bd9e3bd	304
77eed219	305	if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
9bd9e3bd	306	err("Frontend %d registration failed.", i);
77eed219 MK	307	dvb_frontend_detach(adap->fe_adap[i].fe);
77eed219 MK	308	adap->fe_adap[i].fe = NULL;
9bd9e3bd AP	309	/* In error case, do not try register more FEs,
	310	* still leaving already registered FEs alive. */
	311	if (i == 0)
	312	return -ENODEV;
	313	else
	314	return 0;
776338e1	315	}
5a19f312 PB	316
5a19f312 PB	317	/* only attach the tuner if the demod is there */
77eed219 MK	318	if (adap->props.fe[i].tuner_attach != NULL)
	319	adap->props.fe[i].tuner_attach(adap);
	320
	321	adap->num_frontends_initialized++;
9bd9e3bd	322	}
0d3ab841 MCC	323	if (ret)
0d3ab841 MCC	324	return ret;
776338e1	325
0230d60e	326	ret = dvb_create_media_graph(&adap->dvb_adap, true);
9f806795 MCC	327	if (ret)
9f806795 MCC	328	return ret;
496ccf92	329
9f806795	330	ret = dvb_usb_media_device_register(adap);
9832e155	331
0d3ab841	332	return ret;
776338e1 JS	333	}
776338e1 JS	334
4d43e13f	335	int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
776338e1	336	{
77eed219	337	int i = adap->num_frontends_initialized - 1;
9bd9e3bd AP	338
9bd9e3bd AP	339	/* unregister all given adapter frontends */
9bd9e3bd	340	for (; i >= 0; i--) {
77eed219 MK	341	if (adap->fe_adap[i].fe != NULL) {
	342	dvb_unregister_frontend(adap->fe_adap[i].fe);
	343	dvb_frontend_detach(adap->fe_adap[i].fe);
9bd9e3bd	344	}
4e66c97c	345	}
77eed219	346	adap->num_frontends_initialized = 0;
9bd9e3bd	347
776338e1 JS	348	return 0;
776338e1 JS	349	}