4 * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de>
5 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "dvb_usb_common.h"
24 int dvb_usbv2_disable_rc_polling;
25 module_param_named(disable_rc_polling, dvb_usbv2_disable_rc_polling, int, 0644);
26 MODULE_PARM_DESC(disable_rc_polling,
27 "disable remote control polling (default: 0)");
28 static int dvb_usb_force_pid_filter_usage;
29 module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage,
31 MODULE_PARM_DESC(force_pid_filter_usage, "force all DVB USB devices to use a " \
32 "PID filter, if any (default: 0)");
34 static int dvb_usbv2_download_firmware(struct dvb_usb_device *d, const char *name)
37 const struct firmware *fw;
38 dev_dbg(&d->udev->dev, "%s:\n", __func__);
40 if (!d->props->download_firmware) {
45 ret = request_firmware(&fw, name, &d->udev->dev);
47 dev_err(&d->udev->dev, "%s: Did not find the firmware file "\
48 "'%s'. Please see linux/Documentation/dvb/ " \
49 "for more details on firmware-problems. " \
50 "Status %d\n", KBUILD_MODNAME, name, ret);
54 dev_info(&d->udev->dev, "%s: downloading firmware from file '%s'\n",
55 KBUILD_MODNAME, name);
57 ret = d->props->download_firmware(d, fw);
64 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
68 static int dvb_usbv2_i2c_init(struct dvb_usb_device *d)
71 dev_dbg(&d->udev->dev, "%s:\n", __func__);
73 if (!d->props->i2c_algo)
76 strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
77 d->i2c_adap.algo = d->props->i2c_algo;
78 d->i2c_adap.dev.parent = &d->udev->dev;
79 i2c_set_adapdata(&d->i2c_adap, d);
81 ret = i2c_add_adapter(&d->i2c_adap);
83 d->i2c_adap.algo = NULL;
84 dev_err(&d->udev->dev, "%s: i2c_add_adapter() failed=%d\n",
91 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
95 static int dvb_usbv2_i2c_exit(struct dvb_usb_device *d)
97 dev_dbg(&d->udev->dev, "%s:\n", __func__);
100 i2c_del_adapter(&d->i2c_adap);
105 #if IS_ENABLED(CONFIG_RC_CORE)
106 static void dvb_usb_read_remote_control(struct work_struct *work)
108 struct dvb_usb_device *d = container_of(work,
109 struct dvb_usb_device, rc_query_work.work);
113 * When the parameter has been set to 1 via sysfs while the
114 * driver was running, or when bulk mode is enabled after IR init.
116 if (dvb_usbv2_disable_rc_polling || d->rc.bulk_mode) {
117 d->rc_polling_active = false;
121 ret = d->rc.query(d);
123 dev_err(&d->udev->dev, "%s: rc.query() failed=%d\n",
124 KBUILD_MODNAME, ret);
125 d->rc_polling_active = false;
126 return; /* stop polling */
129 schedule_delayed_work(&d->rc_query_work,
130 msecs_to_jiffies(d->rc.interval));
133 static int dvb_usbv2_remote_init(struct dvb_usb_device *d)
137 dev_dbg(&d->udev->dev, "%s:\n", __func__);
139 if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config)
142 d->rc.map_name = d->rc_map;
143 ret = d->props->get_rc_config(d, &d->rc);
147 /* disable rc when there is no keymap defined */
151 dev = rc_allocate_device();
157 dev->dev.parent = &d->udev->dev;
158 dev->input_name = d->name;
159 usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
160 strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
161 dev->input_phys = d->rc_phys;
162 usb_to_input_id(d->udev, &dev->input_id);
163 /* TODO: likely RC-core should took const char * */
164 dev->driver_name = (char *) d->props->driver_name;
165 dev->map_name = d->rc.map_name;
166 dev->driver_type = d->rc.driver_type;
167 dev->allowed_protos = d->rc.allowed_protos;
168 dev->change_protocol = d->rc.change_protocol;
171 ret = rc_register_device(dev);
179 /* start polling if needed */
180 if (d->rc.query && !d->rc.bulk_mode) {
181 /* initialize a work queue for handling polling */
182 INIT_DELAYED_WORK(&d->rc_query_work,
183 dvb_usb_read_remote_control);
184 dev_info(&d->udev->dev, "%s: schedule remote query interval " \
185 "to %d msecs\n", KBUILD_MODNAME,
187 schedule_delayed_work(&d->rc_query_work,
188 msecs_to_jiffies(d->rc.interval));
189 d->rc_polling_active = true;
194 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
198 static int dvb_usbv2_remote_exit(struct dvb_usb_device *d)
200 dev_dbg(&d->udev->dev, "%s:\n", __func__);
203 cancel_delayed_work_sync(&d->rc_query_work);
204 rc_unregister_device(d->rc_dev);
211 #define dvb_usbv2_remote_init(args...) 0
212 #define dvb_usbv2_remote_exit(args...)
215 static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buf,
218 struct dvb_usb_adapter *adap = stream->user_priv;
219 dvb_dmx_swfilter(&adap->demux, buf, len);
222 static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buf,
225 struct dvb_usb_adapter *adap = stream->user_priv;
226 dvb_dmx_swfilter_204(&adap->demux, buf, len);
229 static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, u8 *buf,
232 struct dvb_usb_adapter *adap = stream->user_priv;
233 dvb_dmx_swfilter_raw(&adap->demux, buf, len);
236 static int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap)
238 dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
241 adap->stream.udev = adap_to_d(adap)->udev;
242 adap->stream.user_priv = adap;
243 adap->stream.complete = dvb_usb_data_complete;
245 return usb_urb_initv2(&adap->stream, &adap->props->stream);
248 static int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap)
250 dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
253 return usb_urb_exitv2(&adap->stream);
256 static inline int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed,
259 struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
260 struct dvb_usb_device *d = adap_to_d(adap);
262 dev_dbg(&d->udev->dev, "%s: adap=%d active_fe=%d feed_type=%d " \
263 "setting pid [%s]: %04x (%04d) at index %d '%s'\n",
264 __func__, adap->id, adap->active_fe, dvbdmxfeed->type,
265 adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
266 dvbdmxfeed->pid, dvbdmxfeed->index,
267 (count == 1) ? "on" : "off");
269 if (adap->active_fe == -1)
272 adap->feed_count += count;
274 /* stop feeding if it is last pid */
275 if (adap->feed_count == 0) {
276 dev_dbg(&d->udev->dev, "%s: stop feeding\n", __func__);
278 if (d->props->streaming_ctrl) {
279 ret = d->props->streaming_ctrl(
280 adap->fe[adap->active_fe], 0);
282 dev_err(&d->udev->dev, "%s: streaming_ctrl() " \
283 "failed=%d\n", KBUILD_MODNAME,
285 usb_urb_killv2(&adap->stream);
286 goto err_mutex_unlock;
289 usb_urb_killv2(&adap->stream);
290 mutex_unlock(&adap->sync_mutex);
293 /* activate the pid on the device pid filter */
294 if (adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER &&
295 adap->pid_filtering && adap->props->pid_filter) {
296 ret = adap->props->pid_filter(adap, dvbdmxfeed->index,
297 dvbdmxfeed->pid, (count == 1) ? 1 : 0);
299 dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n",
300 KBUILD_MODNAME, ret);
303 /* start feeding if it is first pid */
304 if (adap->feed_count == 1 && count == 1) {
305 struct usb_data_stream_properties stream_props;
306 mutex_lock(&adap->sync_mutex);
307 dev_dbg(&d->udev->dev, "%s: start feeding\n", __func__);
309 /* resolve input and output streaming paramters */
310 if (d->props->get_stream_config) {
311 memcpy(&stream_props, &adap->props->stream,
312 sizeof(struct usb_data_stream_properties));
313 ret = d->props->get_stream_config(
314 adap->fe[adap->active_fe],
315 &adap->ts_type, &stream_props);
317 goto err_mutex_unlock;
319 stream_props = adap->props->stream;
322 switch (adap->ts_type) {
323 case DVB_USB_FE_TS_TYPE_204:
324 adap->stream.complete = dvb_usb_data_complete_204;
326 case DVB_USB_FE_TS_TYPE_RAW:
327 adap->stream.complete = dvb_usb_data_complete_raw;
329 case DVB_USB_FE_TS_TYPE_188:
331 adap->stream.complete = dvb_usb_data_complete;
335 usb_urb_submitv2(&adap->stream, &stream_props);
337 if (adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER &&
339 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
340 adap->props->pid_filter_ctrl) {
341 ret = adap->props->pid_filter_ctrl(adap,
342 adap->pid_filtering);
344 dev_err(&d->udev->dev, "%s: " \
345 "pid_filter_ctrl() failed=%d\n",
346 KBUILD_MODNAME, ret);
347 goto err_mutex_unlock;
351 if (d->props->streaming_ctrl) {
352 ret = d->props->streaming_ctrl(
353 adap->fe[adap->active_fe], 1);
355 dev_err(&d->udev->dev, "%s: streaming_ctrl() " \
356 "failed=%d\n", KBUILD_MODNAME,
358 goto err_mutex_unlock;
365 mutex_unlock(&adap->sync_mutex);
366 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
370 static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
372 return dvb_usb_ctrl_feed(dvbdmxfeed, 1);
375 static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
377 return dvb_usb_ctrl_feed(dvbdmxfeed, -1);
380 static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
383 struct dvb_usb_device *d = adap_to_d(adap);
384 dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
386 ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner,
387 &d->udev->dev, d->props->adapter_nr);
389 dev_dbg(&d->udev->dev, "%s: dvb_register_adapter() failed=%d\n",
391 goto err_dvb_register_adapter;
394 adap->dvb_adap.priv = adap;
396 if (d->props->read_mac_address) {
397 ret = d->props->read_mac_address(adap,
398 adap->dvb_adap.proposed_mac);
400 goto err_dvb_dmx_init;
402 dev_info(&d->udev->dev, "%s: MAC address: %pM\n",
403 KBUILD_MODNAME, adap->dvb_adap.proposed_mac);
406 adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
407 adap->demux.priv = adap;
408 adap->demux.filternum = 0;
409 adap->demux.filternum = adap->max_feed_count;
410 adap->demux.feednum = adap->demux.filternum;
411 adap->demux.start_feed = dvb_usb_start_feed;
412 adap->demux.stop_feed = dvb_usb_stop_feed;
413 adap->demux.write_to_decoder = NULL;
414 ret = dvb_dmx_init(&adap->demux);
416 dev_err(&d->udev->dev, "%s: dvb_dmx_init() failed=%d\n",
417 KBUILD_MODNAME, ret);
418 goto err_dvb_dmx_init;
421 adap->dmxdev.filternum = adap->demux.filternum;
422 adap->dmxdev.demux = &adap->demux.dmx;
423 adap->dmxdev.capabilities = 0;
424 ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap);
426 dev_err(&d->udev->dev, "%s: dvb_dmxdev_init() failed=%d\n",
427 KBUILD_MODNAME, ret);
428 goto err_dvb_dmxdev_init;
431 ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
433 dev_err(&d->udev->dev, "%s: dvb_net_init() failed=%d\n",
434 KBUILD_MODNAME, ret);
435 goto err_dvb_net_init;
438 mutex_init(&adap->sync_mutex);
442 dvb_dmxdev_release(&adap->dmxdev);
444 dvb_dmx_release(&adap->demux);
446 dvb_unregister_adapter(&adap->dvb_adap);
447 err_dvb_register_adapter:
448 adap->dvb_adap.priv = NULL;
452 static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap)
454 dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
457 if (adap->dvb_adap.priv) {
458 dvb_net_release(&adap->dvb_net);
459 adap->demux.dmx.close(&adap->demux.dmx);
460 dvb_dmxdev_release(&adap->dmxdev);
461 dvb_dmx_release(&adap->demux);
462 dvb_unregister_adapter(&adap->dvb_adap);
468 static int dvb_usbv2_device_power_ctrl(struct dvb_usb_device *d, int onoff)
477 if (d->powered == 0 || (onoff && d->powered == 1)) {
478 /* when switching from 1 to 0 or from 0 to 1 */
479 dev_dbg(&d->udev->dev, "%s: power=%d\n", __func__, onoff);
480 if (d->props->power_ctrl) {
481 ret = d->props->power_ctrl(d, onoff);
489 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
493 static int dvb_usb_fe_init(struct dvb_frontend *fe)
496 struct dvb_usb_adapter *adap = fe->dvb->priv;
497 struct dvb_usb_device *d = adap_to_d(adap);
498 dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id,
501 if (!adap->suspend_resume_active) {
502 adap->active_fe = fe->id;
503 mutex_lock(&adap->sync_mutex);
506 ret = dvb_usbv2_device_power_ctrl(d, 1);
510 if (d->props->frontend_ctrl) {
511 ret = d->props->frontend_ctrl(fe, 1);
516 if (adap->fe_init[fe->id]) {
517 ret = adap->fe_init[fe->id](fe);
522 if (!adap->suspend_resume_active)
523 mutex_unlock(&adap->sync_mutex);
525 dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret);
529 static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
532 struct dvb_usb_adapter *adap = fe->dvb->priv;
533 struct dvb_usb_device *d = adap_to_d(adap);
534 dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id,
537 if (!adap->suspend_resume_active)
538 mutex_lock(&adap->sync_mutex);
540 if (adap->fe_sleep[fe->id]) {
541 ret = adap->fe_sleep[fe->id](fe);
546 if (d->props->frontend_ctrl) {
547 ret = d->props->frontend_ctrl(fe, 0);
552 ret = dvb_usbv2_device_power_ctrl(d, 0);
556 if (!adap->suspend_resume_active) {
557 adap->active_fe = -1;
558 mutex_unlock(&adap->sync_mutex);
561 dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret);
565 static int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
567 int ret, i, count_registered = 0;
568 struct dvb_usb_device *d = adap_to_d(adap);
569 dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
571 memset(adap->fe, 0, sizeof(adap->fe));
572 adap->active_fe = -1;
574 if (d->props->frontend_attach) {
575 ret = d->props->frontend_attach(adap);
577 dev_dbg(&d->udev->dev, "%s: frontend_attach() " \
578 "failed=%d\n", __func__, ret);
579 goto err_dvb_frontend_detach;
582 dev_dbg(&d->udev->dev, "%s: frontend_attach() do not exists\n",
588 for (i = 0; i < MAX_NO_OF_FE_PER_ADAP && adap->fe[i]; i++) {
590 /* re-assign sleep and wakeup functions */
591 adap->fe_init[i] = adap->fe[i]->ops.init;
592 adap->fe[i]->ops.init = dvb_usb_fe_init;
593 adap->fe_sleep[i] = adap->fe[i]->ops.sleep;
594 adap->fe[i]->ops.sleep = dvb_usb_fe_sleep;
596 ret = dvb_register_frontend(&adap->dvb_adap, adap->fe[i]);
598 dev_err(&d->udev->dev, "%s: frontend%d registration " \
599 "failed\n", KBUILD_MODNAME, i);
600 goto err_dvb_unregister_frontend;
606 if (d->props->tuner_attach) {
607 ret = d->props->tuner_attach(adap);
609 dev_dbg(&d->udev->dev, "%s: tuner_attach() failed=%d\n",
611 goto err_dvb_unregister_frontend;
617 err_dvb_unregister_frontend:
618 for (i = count_registered - 1; i >= 0; i--)
619 dvb_unregister_frontend(adap->fe[i]);
621 err_dvb_frontend_detach:
622 for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) {
624 dvb_frontend_detach(adap->fe[i]);
630 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
634 static int dvb_usbv2_adapter_frontend_exit(struct dvb_usb_adapter *adap)
637 dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
640 for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) {
642 dvb_unregister_frontend(adap->fe[i]);
643 dvb_frontend_detach(adap->fe[i]);
650 static int dvb_usbv2_adapter_init(struct dvb_usb_device *d)
652 struct dvb_usb_adapter *adap;
653 int ret, i, adapter_count;
655 /* resolve adapter count */
656 adapter_count = d->props->num_adapters;
657 if (d->props->get_adapter_count) {
658 ret = d->props->get_adapter_count(d);
665 for (i = 0; i < adapter_count; i++) {
666 adap = &d->adapter[i];
668 adap->props = &d->props->adapter[i];
670 /* speed - when running at FULL speed we need a HW PID filter */
671 if (d->udev->speed == USB_SPEED_FULL &&
672 !(adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
673 dev_err(&d->udev->dev, "%s: this USB2.0 device " \
674 "cannot be run on a USB1.1 port (it " \
675 "lacks a hardware PID filter)\n",
679 } else if ((d->udev->speed == USB_SPEED_FULL &&
680 adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
681 (adap->props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
682 dev_info(&d->udev->dev, "%s: will use the device's " \
683 "hardware PID filter " \
684 "(table count: %d)\n", KBUILD_MODNAME,
685 adap->props->pid_filter_count);
686 adap->pid_filtering = 1;
687 adap->max_feed_count = adap->props->pid_filter_count;
689 dev_info(&d->udev->dev, "%s: will pass the complete " \
690 "MPEG2 transport stream to the " \
691 "software demuxer\n", KBUILD_MODNAME);
692 adap->pid_filtering = 0;
693 adap->max_feed_count = 255;
696 if (!adap->pid_filtering && dvb_usb_force_pid_filter_usage &&
697 adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
698 dev_info(&d->udev->dev, "%s: PID filter enabled by " \
699 "module option\n", KBUILD_MODNAME);
700 adap->pid_filtering = 1;
701 adap->max_feed_count = adap->props->pid_filter_count;
704 ret = dvb_usbv2_adapter_stream_init(adap);
708 ret = dvb_usbv2_adapter_dvb_init(adap);
712 ret = dvb_usbv2_adapter_frontend_init(adap);
716 /* use exclusive FE lock if there is multiple shared FEs */
718 adap->dvb_adap.mfe_shared = 1;
723 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
727 static int dvb_usbv2_adapter_exit(struct dvb_usb_device *d)
730 dev_dbg(&d->udev->dev, "%s:\n", __func__);
732 for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) {
733 if (d->adapter[i].props) {
734 dvb_usbv2_adapter_frontend_exit(&d->adapter[i]);
735 dvb_usbv2_adapter_dvb_exit(&d->adapter[i]);
736 dvb_usbv2_adapter_stream_exit(&d->adapter[i]);
743 /* general initialization functions */
744 static int dvb_usbv2_exit(struct dvb_usb_device *d)
746 dev_dbg(&d->udev->dev, "%s:\n", __func__);
748 dvb_usbv2_remote_exit(d);
749 dvb_usbv2_adapter_exit(d);
750 dvb_usbv2_i2c_exit(d);
757 static int dvb_usbv2_init(struct dvb_usb_device *d)
760 dev_dbg(&d->udev->dev, "%s:\n", __func__);
762 dvb_usbv2_device_power_ctrl(d, 1);
764 if (d->props->read_config) {
765 ret = d->props->read_config(d);
770 ret = dvb_usbv2_i2c_init(d);
774 ret = dvb_usbv2_adapter_init(d);
778 if (d->props->init) {
779 ret = d->props->init(d);
784 ret = dvb_usbv2_remote_init(d);
788 dvb_usbv2_device_power_ctrl(d, 0);
792 dvb_usbv2_device_power_ctrl(d, 0);
793 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
798 * udev, which is used for the firmware downloading, requires we cannot
799 * block during module_init(). module_init() calls USB probe() which
800 * is this routine. Due to that we delay actual operation using workqueue
801 * and return always success here.
803 static void dvb_usbv2_init_work(struct work_struct *work)
806 struct dvb_usb_device *d =
807 container_of(work, struct dvb_usb_device, probe_work);
809 d->work_pid = current->pid;
810 dev_dbg(&d->udev->dev, "%s: work_pid=%d\n", __func__, d->work_pid);
812 if (d->props->size_of_priv) {
813 d->priv = kzalloc(d->props->size_of_priv, GFP_KERNEL);
815 dev_err(&d->udev->dev, "%s: kzalloc() failed\n",
818 goto err_usb_driver_release_interface;
822 if (d->props->identify_state) {
823 const char *name = NULL;
824 ret = d->props->identify_state(d, &name);
827 } else if (ret == COLD) {
828 dev_info(&d->udev->dev, "%s: found a '%s' in cold " \
829 "state\n", KBUILD_MODNAME, d->name);
832 name = d->props->firmware;
834 ret = dvb_usbv2_download_firmware(d, name);
836 /* device is warm, continue initialization */
838 } else if (ret == RECONNECTS_USB) {
840 * USB core will call disconnect() and then
841 * probe() as device reconnects itself from the
842 * USB bus. disconnect() will release all driver
843 * resources and probe() is called for 'new'
844 * device. As 'new' device is warm we should
845 * never go here again.
850 * Unexpected error. We must unregister driver
851 * manually from the device, because device is
852 * already register by returning from probe()
853 * with success. usb_driver_release_interface()
854 * finally calls disconnect() in order to free
857 goto err_usb_driver_release_interface;
860 goto err_usb_driver_release_interface;
864 dev_info(&d->udev->dev, "%s: found a '%s' in warm state\n",
865 KBUILD_MODNAME, d->name);
867 ret = dvb_usbv2_init(d);
869 goto err_usb_driver_release_interface;
871 dev_info(&d->udev->dev, "%s: '%s' successfully initialized and " \
872 "connected\n", KBUILD_MODNAME, d->name);
875 err_usb_driver_release_interface:
876 dev_info(&d->udev->dev, "%s: '%s' error while loading driver (%d)\n",
877 KBUILD_MODNAME, d->name, ret);
878 usb_driver_release_interface(to_usb_driver(d->intf->dev.driver),
880 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
884 int dvb_usbv2_probe(struct usb_interface *intf,
885 const struct usb_device_id *id)
888 struct dvb_usb_device *d;
889 struct usb_device *udev = interface_to_usbdev(intf);
890 struct dvb_usb_driver_info *driver_info =
891 (struct dvb_usb_driver_info *) id->driver_info;
893 dev_dbg(&udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
894 intf->cur_altsetting->desc.bInterfaceNumber);
896 if (!id->driver_info) {
897 dev_err(&udev->dev, "%s: driver_info failed\n", KBUILD_MODNAME);
902 d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL);
904 dev_err(&udev->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
909 d->name = driver_info->name;
910 d->rc_map = driver_info->rc_map;
913 d->props = driver_info->props;
915 if (d->intf->cur_altsetting->desc.bInterfaceNumber !=
916 d->props->bInterfaceNumber) {
921 mutex_init(&d->usb_mutex);
922 mutex_init(&d->i2c_mutex);
923 INIT_WORK(&d->probe_work, dvb_usbv2_init_work);
924 usb_set_intfdata(intf, d);
925 ret = schedule_work(&d->probe_work);
927 dev_err(&d->udev->dev, "%s: schedule_work() failed\n",
936 dev_dbg(&udev->dev, "%s: failed=%d\n", __func__, ret);
939 EXPORT_SYMBOL(dvb_usbv2_probe);
941 void dvb_usbv2_disconnect(struct usb_interface *intf)
943 struct dvb_usb_device *d = usb_get_intfdata(intf);
944 const char *name = d->name;
945 struct device dev = d->udev->dev;
946 dev_dbg(&d->udev->dev, "%s: pid=%d work_pid=%d\n", __func__,
947 current->pid, d->work_pid);
949 /* ensure initialization work is finished until release resources */
950 if (d->work_pid != current->pid)
951 cancel_work_sync(&d->probe_work);
958 dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n",
959 KBUILD_MODNAME, name);
961 EXPORT_SYMBOL(dvb_usbv2_disconnect);
963 int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg)
965 struct dvb_usb_device *d = usb_get_intfdata(intf);
966 int ret = 0, i, active_fe;
967 struct dvb_frontend *fe;
968 dev_dbg(&d->udev->dev, "%s:\n", __func__);
970 /* stop remote controller poll */
971 if (d->rc_polling_active)
972 cancel_delayed_work_sync(&d->rc_query_work);
974 for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) {
975 active_fe = d->adapter[i].active_fe;
976 if (d->adapter[i].dvb_adap.priv && active_fe != -1) {
977 fe = d->adapter[i].fe[active_fe];
978 d->adapter[i].suspend_resume_active = true;
980 if (d->props->streaming_ctrl)
981 d->props->streaming_ctrl(fe, 0);
983 /* stop usb streaming */
984 usb_urb_killv2(&d->adapter[i].stream);
986 ret = dvb_frontend_suspend(fe);
992 EXPORT_SYMBOL(dvb_usbv2_suspend);
994 static int dvb_usbv2_resume_common(struct dvb_usb_device *d)
996 int ret = 0, i, active_fe;
997 struct dvb_frontend *fe;
998 dev_dbg(&d->udev->dev, "%s:\n", __func__);
1000 for (i = 0; i < MAX_NO_OF_ADAPTER_PER_DEVICE; i++) {
1001 active_fe = d->adapter[i].active_fe;
1002 if (d->adapter[i].dvb_adap.priv && active_fe != -1) {
1003 fe = d->adapter[i].fe[active_fe];
1005 ret = dvb_frontend_resume(fe);
1007 /* resume usb streaming */
1008 usb_urb_submitv2(&d->adapter[i].stream, NULL);
1010 if (d->props->streaming_ctrl)
1011 d->props->streaming_ctrl(fe, 1);
1013 d->adapter[i].suspend_resume_active = false;
1017 /* start remote controller poll */
1018 if (d->rc_polling_active)
1019 schedule_delayed_work(&d->rc_query_work,
1020 msecs_to_jiffies(d->rc.interval));
1025 int dvb_usbv2_resume(struct usb_interface *intf)
1027 struct dvb_usb_device *d = usb_get_intfdata(intf);
1028 dev_dbg(&d->udev->dev, "%s:\n", __func__);
1030 return dvb_usbv2_resume_common(d);
1032 EXPORT_SYMBOL(dvb_usbv2_resume);
1034 int dvb_usbv2_reset_resume(struct usb_interface *intf)
1036 struct dvb_usb_device *d = usb_get_intfdata(intf);
1038 dev_dbg(&d->udev->dev, "%s:\n", __func__);
1040 dvb_usbv2_device_power_ctrl(d, 1);
1045 ret = dvb_usbv2_resume_common(d);
1047 dvb_usbv2_device_power_ctrl(d, 0);
1051 EXPORT_SYMBOL(dvb_usbv2_reset_resume);
1053 MODULE_VERSION("2.0");
1054 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
1055 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1056 MODULE_DESCRIPTION("DVB USB common");
1057 MODULE_LICENSE("GPL");