[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@desy.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"

/* 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 void 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;

	mdev->dev = &udev->dev;
	strlcpy(mdev->model, d->desc->name, sizeof(mdev->model));
	if (udev->serial)
		strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial));
	strcpy(mdev->bus_info, udev->devpath);
	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
	mdev->driver_version = LINUX_VERSION_CODE;

	media_device_init(mdev);

	dvb_register_media_controller(&adap->dvb_adap, mdev);

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

static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
{
#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	media_device_register(adap->dvb_adap.mdev);
#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;

	dvb_usb_media_device_init(adap);

	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);
	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);

	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	*
4d43e13f	3	* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.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"
	10
4d43e13f	11	/* does the complete input transfer handling */
776338e1 JS	12	static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
776338e1 JS	13	{
4d43e13f	14	struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
c8b7ced3	15	int newfeedcount, ret;
776338e1	16
4d43e13f	17	if (adap == NULL)
776338e1 JS	18	return -ENODEV;
776338e1 JS	19
2d04c13a MK	20	if ((adap->active_fe < 0) \|\|
2d04c13a MK	21	(adap->active_fe >= adap->num_frontends_initialized)) {
77eed219 MK	22	return -EINVAL;
	23	}
	24
4d43e13f	25	newfeedcount = adap->feedcount + (onoff ? 1 : -1);
776338e1	26
4d43e13f	27	/* stop feed before setting a new pid if there will be no pid anymore */
776338e1 JS	28	if (newfeedcount == 0) {
776338e1 JS	29	deb_ts("stop feeding\n");
77eed219	30	usb_urb_kill(&adap->fe_adap[adap->active_fe].stream);
776338e1	31
77eed219 MK	32	if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
77eed219 MK	33	ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0);
dca6b74b MP	34	if (ret < 0) {
dca6b74b MP	35	err("error while stopping stream.");
c8b7ced3	36	return ret;
dca6b74b	37	}
c8b7ced3	38	}
776338e1 JS	39	}
776338e1 JS	40
4d43e13f	41	adap->feedcount = newfeedcount;
776338e1 JS	42
776338e1 JS	43	/* activate the pid on the device specific pid_filter */
2b7a7c30 MK	44	deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",
	45	adap->fe_adap[adap->active_fe].pid_filtering ?
	46	"yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid,
	47	dvbdmxfeed->index, onoff ? "on" : "off");
77eed219 MK	48	if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
	49	adap->fe_adap[adap->active_fe].pid_filtering &&
	50	adap->props.fe[adap->active_fe].pid_filter != NULL)
	51	adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff);
776338e1 JS	52
	53	/* start the feed if this was the first feed and there is still a feed
	54	* for reception.
	55	*/
4d43e13f	56	if (adap->feedcount == onoff && adap->feedcount > 0) {
8126fdbc	57	deb_ts("submitting all URBs\n");
77eed219	58	usb_urb_submit(&adap->fe_adap[adap->active_fe].stream);
776338e1 JS	59
776338e1 JS	60	deb_ts("controlling pid parser\n");
77eed219 MK	61	if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
77eed219 MK	62	adap->props.fe[adap->active_fe].caps &
c8b7ced3	63	DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
77eed219 MK	64	adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) {
	65	ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap,
	66	adap->fe_adap[adap->active_fe].pid_filtering);
c8b7ced3	67	if (ret < 0) {
776338e1	68	err("could not handle pid_parser");
c8b7ced3 MP	69	return ret;
	70	}
	71	}
776338e1	72	deb_ts("start feeding\n");
77eed219 MK	73	if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
77eed219 MK	74	ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1);
c8b7ced3	75	if (ret < 0) {
776338e1	76	err("error while enabling fifo.");
c8b7ced3	77	return ret;
776338e1	78	}
c8b7ced3	79	}
776338e1	80
776338e1 JS	81	}
	82	return 0;
	83	}
	84
	85	static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
	86	{
e68c2fe6 LB	87	deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,
	88	dvbdmxfeed->type);
	89	return dvb_usb_ctrl_feed(dvbdmxfeed, 1);
776338e1 JS	90	}
	91
	92	static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
	93	{
	94	deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
e68c2fe6	95	return dvb_usb_ctrl_feed(dvbdmxfeed, 0);
776338e1 JS	96	}
776338e1 JS	97
9832e155	98	static void dvb_usb_media_device_init(struct dvb_usb_adapter *adap)
496ccf92 RLLC	99	{
496ccf92 RLLC	100	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
496ccf92	101	struct media_device *mdev;
a3dfc6d9	102	struct dvb_usb_device *d = adap->dev;
496ccf92	103	struct usb_device *udev = d->udev;
496ccf92 RLLC	104
	105	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
	106	if (!mdev)
	107	return;
	108
	109	mdev->dev = &udev->dev;
	110	strlcpy(mdev->model, d->desc->name, sizeof(mdev->model));
	111	if (udev->serial)
	112	strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial));
	113	strcpy(mdev->bus_info, udev->devpath);
	114	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
	115	mdev->driver_version = LINUX_VERSION_CODE;
	116
9832e155 JMC	117	media_device_init(mdev);
9832e155 JMC	118
89a2c1d6	119	dvb_register_media_controller(&adap->dvb_adap, mdev);
496ccf92 RLLC	120
496ccf92 RLLC	121	dev_info(&d->udev->dev, "media controller created\n");
496ccf92 RLLC	122	#endif
	123	}
	124
9832e155 JMC	125	static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
	126	{
	127	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	128	media_device_register(adap->dvb_adap.mdev);
	129	#endif
	130	}
	131
a3dfc6d9	132	static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
496ccf92 RLLC	133	{
496ccf92 RLLC	134	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
a3dfc6d9	135	if (!adap->dvb_adap.mdev)
496ccf92 RLLC	136	return;
496ccf92 RLLC	137
a3dfc6d9	138	media_device_unregister(adap->dvb_adap.mdev);
9832e155	139	media_device_cleanup(adap->dvb_adap.mdev);
a3dfc6d9 MCC	140	kfree(adap->dvb_adap.mdev);
a3dfc6d9 MCC	141	adap->dvb_adap.mdev = NULL;
496ccf92 RLLC	142	#endif
	143	}
	144
78e92006	145	int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter adap, short adapter_nums)
776338e1	146	{
77eed219	147	int i;
78e92006 JG	148	int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
	149	adap->dev->owner, &adap->dev->udev->dev,
	150	adapter_nums);
776338e1	151
78e92006	152	if (ret < 0) {
776338e1 JS	153	deb_info("dvb_register_adapter failed: error %d", ret);
	154	goto err;
	155	}
4d43e13f PB	156	adap->dvb_adap.priv = adap;
4d43e13f PB	157
9832e155	158	dvb_usb_media_device_init(adap);
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);
4d43e13f	208	dvb_unregister_adapter(&adap->dvb_adap);
776338e1 JS	209	err:
776338e1 JS	210	return ret;
776338e1 JS	211	}
776338e1 JS	212
4d43e13f	213	int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
776338e1	214	{
4d43e13f	215	if (adap->state & DVB_USB_ADAP_STATE_DVB) {
776338e1	216	deb_info("unregistering DVB part\n");
4d43e13f PB	217	dvb_net_release(&adap->dvb_net);
	218	adap->demux.dmx.close(&adap->demux.dmx);
	219	dvb_dmxdev_release(&adap->dmxdev);
	220	dvb_dmx_release(&adap->demux);
a3dfc6d9	221	dvb_usb_media_device_unregister(adap);
4d43e13f PB	222	dvb_unregister_adapter(&adap->dvb_adap);
4d43e13f PB	223	adap->state &= ~DVB_USB_ADAP_STATE_DVB;
776338e1 JS	224	}
	225	return 0;
	226	}
	227
77eed219 MK	228	static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
	229	{
	230	struct dvb_usb_adapter *adap = fe->dvb->priv;
	231
	232	int ret = (adap->props.frontend_ctrl) ?
	233	adap->props.frontend_ctrl(fe, onoff) : 0;
	234
	235	if (ret < 0) {
	236	err("frontend_ctrl request failed");
	237	return ret;
	238	}
	239	if (onoff)
	240	adap->active_fe = fe->id;
	241
	242	return 0;
	243	}
	244
776338e1 JS	245	static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
776338e1 JS	246	{
4d43e13f	247	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	248
4d43e13f	249	dvb_usb_device_power_ctrl(adap->dev, 1);
776338e1	250
77eed219	251	dvb_usb_set_active_fe(fe, 1);
9bd9e3bd	252
77eed219 MK	253	if (adap->fe_adap[fe->id].fe_init)
77eed219 MK	254	adap->fe_adap[fe->id].fe_init(fe);
776338e1 JS	255
	256	return 0;
	257	}
	258
	259	static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
	260	{
4d43e13f	261	struct dvb_usb_adapter *adap = fe->dvb->priv;
776338e1	262
77eed219 MK	263	if (adap->fe_adap[fe->id].fe_sleep)
77eed219 MK	264	adap->fe_adap[fe->id].fe_sleep(fe);
9bd9e3bd	265
77eed219	266	dvb_usb_set_active_fe(fe, 0);
776338e1	267
4d43e13f	268	return dvb_usb_device_power_ctrl(adap->dev, 0);
776338e1 JS	269	}
776338e1 JS	270
4d43e13f	271	int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
776338e1	272	{
77eed219	273	int ret, i;
9bd9e3bd	274
77eed219 MK	275	/* register all given adapter frontends */
77eed219 MK	276	for (i = 0; i < adap->props.num_frontends; i++) {
9bd9e3bd	277
77eed219 MK	278	if (adap->props.fe[i].frontend_attach == NULL) {
	279	err("strange: '%s' #%d,%d "
	280	"doesn't want to attach a frontend.",
	281	adap->dev->desc->name, adap->id, i);
9bd9e3bd	282
77eed219 MK	283	return 0;
77eed219 MK	284	}
776338e1	285
77eed219 MK	286	ret = adap->props.fe[i].frontend_attach(adap);
77eed219 MK	287	if (ret \|\| adap->fe_adap[i].fe == NULL) {
9bd9e3bd AP	288	/* only print error when there is no FE at all */
	289	if (i == 0)
	290	err("no frontend was attached by '%s'",
	291	adap->dev->desc->name);
	292
	293	return 0;
	294	}
776338e1	295
77eed219	296	adap->fe_adap[i].fe->id = i;
9bd9e3bd AP	297
9bd9e3bd AP	298	/* re-assign sleep and wakeup functions */
77eed219 MK	299	adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
	300	adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup;
	301	adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
	302	adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;
9bd9e3bd	303
77eed219	304	if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
9bd9e3bd	305	err("Frontend %d registration failed.", i);
77eed219 MK	306	dvb_frontend_detach(adap->fe_adap[i].fe);
77eed219 MK	307	adap->fe_adap[i].fe = NULL;
9bd9e3bd AP	308	/* In error case, do not try register more FEs,
	309	* still leaving already registered FEs alive. */
	310	if (i == 0)
	311	return -ENODEV;
	312	else
	313	return 0;
776338e1	314	}
5a19f312 PB	315
5a19f312 PB	316	/* only attach the tuner if the demod is there */
77eed219 MK	317	if (adap->props.fe[i].tuner_attach != NULL)
	318	adap->props.fe[i].tuner_attach(adap);
	319
	320	adap->num_frontends_initialized++;
9bd9e3bd	321	}
0d3ab841 MCC	322	if (ret)
0d3ab841 MCC	323	return ret;
776338e1	324
0d3ab841	325	ret = dvb_create_media_graph(&adap->dvb_adap);
496ccf92	326
9832e155 JMC	327	dvb_usb_media_device_register(adap);
9832e155 JMC	328
0d3ab841	329	return ret;
776338e1 JS	330	}
776338e1 JS	331
4d43e13f	332	int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
776338e1	333	{
77eed219	334	int i = adap->num_frontends_initialized - 1;
9bd9e3bd AP	335
9bd9e3bd AP	336	/* unregister all given adapter frontends */
9bd9e3bd	337	for (; i >= 0; i--) {
77eed219 MK	338	if (adap->fe_adap[i].fe != NULL) {
	339	dvb_unregister_frontend(adap->fe_adap[i].fe);
	340	dvb_frontend_detach(adap->fe_adap[i].fe);
9bd9e3bd	341	}
4e66c97c	342	}
77eed219	343	adap->num_frontends_initialized = 0;
9bd9e3bd	344
776338e1 JS	345	return 0;
776338e1 JS	346	}