| 1 | /* |
| 2 | * DVB USB framework |
| 3 | * |
| 4 | * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@posteo.de> |
| 5 | * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> |
| 6 | * |
| 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. |
| 11 | * |
| 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. |
| 16 | * |
| 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. |
| 20 | */ |
| 21 | |
| 22 | #include "dvb_usb_common.h" |
| 23 | #include <media/media-device.h> |
| 24 | |
| 25 | static int dvb_usbv2_disable_rc_polling; |
| 26 | module_param_named(disable_rc_polling, dvb_usbv2_disable_rc_polling, int, 0644); |
| 27 | MODULE_PARM_DESC(disable_rc_polling, |
| 28 | "disable remote control polling (default: 0)"); |
| 29 | static int dvb_usb_force_pid_filter_usage; |
| 30 | module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, |
| 31 | int, 0444); |
| 32 | MODULE_PARM_DESC(force_pid_filter_usage, |
| 33 | "force all DVB USB devices to use a PID filter, if any (default: 0)"); |
| 34 | |
| 35 | static int dvb_usbv2_download_firmware(struct dvb_usb_device *d, |
| 36 | const char *name) |
| 37 | { |
| 38 | int ret; |
| 39 | const struct firmware *fw; |
| 40 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 41 | |
| 42 | if (!d->props->download_firmware) { |
| 43 | ret = -EINVAL; |
| 44 | goto err; |
| 45 | } |
| 46 | |
| 47 | ret = request_firmware(&fw, name, &d->udev->dev); |
| 48 | if (ret < 0) { |
| 49 | dev_err(&d->udev->dev, |
| 50 | "%s: Did not find the firmware file '%s'. Please see linux/Documentation/dvb/ for more details on firmware-problems. Status %d\n", |
| 51 | KBUILD_MODNAME, name, ret); |
| 52 | goto err; |
| 53 | } |
| 54 | |
| 55 | dev_info(&d->udev->dev, "%s: downloading firmware from file '%s'\n", |
| 56 | KBUILD_MODNAME, name); |
| 57 | |
| 58 | ret = d->props->download_firmware(d, fw); |
| 59 | release_firmware(fw); |
| 60 | if (ret < 0) |
| 61 | goto err; |
| 62 | |
| 63 | return ret; |
| 64 | err: |
| 65 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 66 | return ret; |
| 67 | } |
| 68 | |
| 69 | static int dvb_usbv2_i2c_init(struct dvb_usb_device *d) |
| 70 | { |
| 71 | int ret; |
| 72 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 73 | |
| 74 | if (!d->props->i2c_algo) |
| 75 | return 0; |
| 76 | |
| 77 | strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name)); |
| 78 | d->i2c_adap.algo = d->props->i2c_algo; |
| 79 | d->i2c_adap.dev.parent = &d->udev->dev; |
| 80 | i2c_set_adapdata(&d->i2c_adap, d); |
| 81 | |
| 82 | ret = i2c_add_adapter(&d->i2c_adap); |
| 83 | if (ret < 0) { |
| 84 | d->i2c_adap.algo = NULL; |
| 85 | goto err; |
| 86 | } |
| 87 | |
| 88 | return 0; |
| 89 | err: |
| 90 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 91 | return ret; |
| 92 | } |
| 93 | |
| 94 | static int dvb_usbv2_i2c_exit(struct dvb_usb_device *d) |
| 95 | { |
| 96 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 97 | |
| 98 | if (d->i2c_adap.algo) |
| 99 | i2c_del_adapter(&d->i2c_adap); |
| 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | #if IS_ENABLED(CONFIG_RC_CORE) |
| 105 | static void dvb_usb_read_remote_control(struct work_struct *work) |
| 106 | { |
| 107 | struct dvb_usb_device *d = container_of(work, |
| 108 | struct dvb_usb_device, rc_query_work.work); |
| 109 | int ret; |
| 110 | |
| 111 | /* |
| 112 | * When the parameter has been set to 1 via sysfs while the |
| 113 | * driver was running, or when bulk mode is enabled after IR init. |
| 114 | */ |
| 115 | if (dvb_usbv2_disable_rc_polling || d->rc.bulk_mode) { |
| 116 | d->rc_polling_active = false; |
| 117 | return; |
| 118 | } |
| 119 | |
| 120 | ret = d->rc.query(d); |
| 121 | if (ret < 0) { |
| 122 | dev_err(&d->udev->dev, "%s: rc.query() failed=%d\n", |
| 123 | KBUILD_MODNAME, ret); |
| 124 | d->rc_polling_active = false; |
| 125 | return; /* stop polling */ |
| 126 | } |
| 127 | |
| 128 | schedule_delayed_work(&d->rc_query_work, |
| 129 | msecs_to_jiffies(d->rc.interval)); |
| 130 | } |
| 131 | |
| 132 | static int dvb_usbv2_remote_init(struct dvb_usb_device *d) |
| 133 | { |
| 134 | int ret; |
| 135 | struct rc_dev *dev; |
| 136 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 137 | |
| 138 | if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config) |
| 139 | return 0; |
| 140 | |
| 141 | d->rc.map_name = d->rc_map; |
| 142 | ret = d->props->get_rc_config(d, &d->rc); |
| 143 | if (ret < 0) |
| 144 | goto err; |
| 145 | |
| 146 | /* disable rc when there is no keymap defined */ |
| 147 | if (!d->rc.map_name) |
| 148 | return 0; |
| 149 | |
| 150 | dev = rc_allocate_device(); |
| 151 | if (!dev) { |
| 152 | ret = -ENOMEM; |
| 153 | goto err; |
| 154 | } |
| 155 | |
| 156 | dev->dev.parent = &d->udev->dev; |
| 157 | dev->input_name = d->name; |
| 158 | usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys)); |
| 159 | strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys)); |
| 160 | dev->input_phys = d->rc_phys; |
| 161 | usb_to_input_id(d->udev, &dev->input_id); |
| 162 | /* TODO: likely RC-core should took const char * */ |
| 163 | dev->driver_name = (char *) d->props->driver_name; |
| 164 | dev->map_name = d->rc.map_name; |
| 165 | dev->driver_type = d->rc.driver_type; |
| 166 | dev->allowed_protocols = d->rc.allowed_protos; |
| 167 | dev->change_protocol = d->rc.change_protocol; |
| 168 | dev->priv = d; |
| 169 | |
| 170 | ret = rc_register_device(dev); |
| 171 | if (ret < 0) { |
| 172 | rc_free_device(dev); |
| 173 | goto err; |
| 174 | } |
| 175 | |
| 176 | d->rc_dev = dev; |
| 177 | |
| 178 | /* start polling if needed */ |
| 179 | if (d->rc.query && !d->rc.bulk_mode) { |
| 180 | /* initialize a work queue for handling polling */ |
| 181 | INIT_DELAYED_WORK(&d->rc_query_work, |
| 182 | dvb_usb_read_remote_control); |
| 183 | dev_info(&d->udev->dev, |
| 184 | "%s: schedule remote query interval to %d msecs\n", |
| 185 | KBUILD_MODNAME, d->rc.interval); |
| 186 | schedule_delayed_work(&d->rc_query_work, |
| 187 | msecs_to_jiffies(d->rc.interval)); |
| 188 | d->rc_polling_active = true; |
| 189 | } |
| 190 | |
| 191 | return 0; |
| 192 | err: |
| 193 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 194 | return ret; |
| 195 | } |
| 196 | |
| 197 | static int dvb_usbv2_remote_exit(struct dvb_usb_device *d) |
| 198 | { |
| 199 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 200 | |
| 201 | if (d->rc_dev) { |
| 202 | cancel_delayed_work_sync(&d->rc_query_work); |
| 203 | rc_unregister_device(d->rc_dev); |
| 204 | d->rc_dev = NULL; |
| 205 | } |
| 206 | |
| 207 | return 0; |
| 208 | } |
| 209 | #else |
| 210 | #define dvb_usbv2_remote_init(args...) 0 |
| 211 | #define dvb_usbv2_remote_exit(args...) |
| 212 | #endif |
| 213 | |
| 214 | static void dvb_usb_data_complete(struct usb_data_stream *stream, u8 *buf, |
| 215 | size_t len) |
| 216 | { |
| 217 | struct dvb_usb_adapter *adap = stream->user_priv; |
| 218 | dvb_dmx_swfilter(&adap->demux, buf, len); |
| 219 | } |
| 220 | |
| 221 | static void dvb_usb_data_complete_204(struct usb_data_stream *stream, u8 *buf, |
| 222 | size_t len) |
| 223 | { |
| 224 | struct dvb_usb_adapter *adap = stream->user_priv; |
| 225 | dvb_dmx_swfilter_204(&adap->demux, buf, len); |
| 226 | } |
| 227 | |
| 228 | static void dvb_usb_data_complete_raw(struct usb_data_stream *stream, u8 *buf, |
| 229 | size_t len) |
| 230 | { |
| 231 | struct dvb_usb_adapter *adap = stream->user_priv; |
| 232 | dvb_dmx_swfilter_raw(&adap->demux, buf, len); |
| 233 | } |
| 234 | |
| 235 | static int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap) |
| 236 | { |
| 237 | dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__, |
| 238 | adap->id); |
| 239 | |
| 240 | adap->stream.udev = adap_to_d(adap)->udev; |
| 241 | adap->stream.user_priv = adap; |
| 242 | adap->stream.complete = dvb_usb_data_complete; |
| 243 | |
| 244 | return usb_urb_initv2(&adap->stream, &adap->props->stream); |
| 245 | } |
| 246 | |
| 247 | static int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap) |
| 248 | { |
| 249 | dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__, |
| 250 | adap->id); |
| 251 | |
| 252 | return usb_urb_exitv2(&adap->stream); |
| 253 | } |
| 254 | |
| 255 | static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed) |
| 256 | { |
| 257 | struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; |
| 258 | struct dvb_usb_device *d = adap_to_d(adap); |
| 259 | int ret = 0; |
| 260 | struct usb_data_stream_properties stream_props; |
| 261 | dev_dbg(&d->udev->dev, |
| 262 | "%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n", |
| 263 | __func__, adap->id, adap->active_fe, dvbdmxfeed->type, |
| 264 | adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid, |
| 265 | dvbdmxfeed->pid, dvbdmxfeed->index); |
| 266 | |
| 267 | /* wait init is done */ |
| 268 | wait_on_bit(&adap->state_bits, ADAP_INIT, TASK_UNINTERRUPTIBLE); |
| 269 | |
| 270 | if (adap->active_fe == -1) |
| 271 | return -EINVAL; |
| 272 | |
| 273 | /* skip feed setup if we are already feeding */ |
| 274 | if (adap->feed_count++ > 0) |
| 275 | goto skip_feed_start; |
| 276 | |
| 277 | /* set 'streaming' status bit */ |
| 278 | set_bit(ADAP_STREAMING, &adap->state_bits); |
| 279 | |
| 280 | /* resolve input and output streaming parameters */ |
| 281 | if (d->props->get_stream_config) { |
| 282 | memcpy(&stream_props, &adap->props->stream, |
| 283 | sizeof(struct usb_data_stream_properties)); |
| 284 | ret = d->props->get_stream_config(adap->fe[adap->active_fe], |
| 285 | &adap->ts_type, &stream_props); |
| 286 | if (ret) |
| 287 | dev_err(&d->udev->dev, |
| 288 | "%s: get_stream_config() failed=%d\n", |
| 289 | KBUILD_MODNAME, ret); |
| 290 | } else { |
| 291 | stream_props = adap->props->stream; |
| 292 | } |
| 293 | |
| 294 | switch (adap->ts_type) { |
| 295 | case DVB_USB_FE_TS_TYPE_204: |
| 296 | adap->stream.complete = dvb_usb_data_complete_204; |
| 297 | break; |
| 298 | case DVB_USB_FE_TS_TYPE_RAW: |
| 299 | adap->stream.complete = dvb_usb_data_complete_raw; |
| 300 | break; |
| 301 | case DVB_USB_FE_TS_TYPE_188: |
| 302 | default: |
| 303 | adap->stream.complete = dvb_usb_data_complete; |
| 304 | break; |
| 305 | } |
| 306 | |
| 307 | /* submit USB streaming packets */ |
| 308 | usb_urb_submitv2(&adap->stream, &stream_props); |
| 309 | |
| 310 | /* enable HW PID filter */ |
| 311 | if (adap->pid_filtering && adap->props->pid_filter_ctrl) { |
| 312 | ret = adap->props->pid_filter_ctrl(adap, 1); |
| 313 | if (ret) |
| 314 | dev_err(&d->udev->dev, |
| 315 | "%s: pid_filter_ctrl() failed=%d\n", |
| 316 | KBUILD_MODNAME, ret); |
| 317 | } |
| 318 | |
| 319 | /* ask device to start streaming */ |
| 320 | if (d->props->streaming_ctrl) { |
| 321 | ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 1); |
| 322 | if (ret) |
| 323 | dev_err(&d->udev->dev, |
| 324 | "%s: streaming_ctrl() failed=%d\n", |
| 325 | KBUILD_MODNAME, ret); |
| 326 | } |
| 327 | skip_feed_start: |
| 328 | |
| 329 | /* add PID to device HW PID filter */ |
| 330 | if (adap->pid_filtering && adap->props->pid_filter) { |
| 331 | ret = adap->props->pid_filter(adap, dvbdmxfeed->index, |
| 332 | dvbdmxfeed->pid, 1); |
| 333 | if (ret) |
| 334 | dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n", |
| 335 | KBUILD_MODNAME, ret); |
| 336 | } |
| 337 | |
| 338 | if (ret) |
| 339 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 340 | return ret; |
| 341 | } |
| 342 | |
| 343 | static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) |
| 344 | { |
| 345 | struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; |
| 346 | struct dvb_usb_device *d = adap_to_d(adap); |
| 347 | int ret = 0; |
| 348 | dev_dbg(&d->udev->dev, |
| 349 | "%s: adap=%d active_fe=%d feed_type=%d setting pid [%s]: %04x (%04d) at index %d\n", |
| 350 | __func__, adap->id, adap->active_fe, dvbdmxfeed->type, |
| 351 | adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid, |
| 352 | dvbdmxfeed->pid, dvbdmxfeed->index); |
| 353 | |
| 354 | if (adap->active_fe == -1) |
| 355 | return -EINVAL; |
| 356 | |
| 357 | /* remove PID from device HW PID filter */ |
| 358 | if (adap->pid_filtering && adap->props->pid_filter) { |
| 359 | ret = adap->props->pid_filter(adap, dvbdmxfeed->index, |
| 360 | dvbdmxfeed->pid, 0); |
| 361 | if (ret) |
| 362 | dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n", |
| 363 | KBUILD_MODNAME, ret); |
| 364 | } |
| 365 | |
| 366 | /* we cannot stop streaming until last PID is removed */ |
| 367 | if (--adap->feed_count > 0) |
| 368 | goto skip_feed_stop; |
| 369 | |
| 370 | /* ask device to stop streaming */ |
| 371 | if (d->props->streaming_ctrl) { |
| 372 | ret = d->props->streaming_ctrl(adap->fe[adap->active_fe], 0); |
| 373 | if (ret) |
| 374 | dev_err(&d->udev->dev, |
| 375 | "%s: streaming_ctrl() failed=%d\n", |
| 376 | KBUILD_MODNAME, ret); |
| 377 | } |
| 378 | |
| 379 | /* disable HW PID filter */ |
| 380 | if (adap->pid_filtering && adap->props->pid_filter_ctrl) { |
| 381 | ret = adap->props->pid_filter_ctrl(adap, 0); |
| 382 | if (ret) |
| 383 | dev_err(&d->udev->dev, |
| 384 | "%s: pid_filter_ctrl() failed=%d\n", |
| 385 | KBUILD_MODNAME, ret); |
| 386 | } |
| 387 | |
| 388 | /* kill USB streaming packets */ |
| 389 | usb_urb_killv2(&adap->stream); |
| 390 | |
| 391 | /* clear 'streaming' status bit */ |
| 392 | clear_bit(ADAP_STREAMING, &adap->state_bits); |
| 393 | smp_mb__after_atomic(); |
| 394 | wake_up_bit(&adap->state_bits, ADAP_STREAMING); |
| 395 | skip_feed_stop: |
| 396 | |
| 397 | if (ret) |
| 398 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 399 | return ret; |
| 400 | } |
| 401 | |
| 402 | static int dvb_usbv2_media_device_init(struct dvb_usb_adapter *adap) |
| 403 | { |
| 404 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 405 | struct media_device *mdev; |
| 406 | struct dvb_usb_device *d = adap_to_d(adap); |
| 407 | struct usb_device *udev = d->udev; |
| 408 | |
| 409 | mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); |
| 410 | if (!mdev) |
| 411 | return -ENOMEM; |
| 412 | |
| 413 | media_device_usb_init(mdev, udev, d->name); |
| 414 | |
| 415 | dvb_register_media_controller(&adap->dvb_adap, mdev); |
| 416 | |
| 417 | dev_info(&d->udev->dev, "media controller created\n"); |
| 418 | #endif |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | static int dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap) |
| 423 | { |
| 424 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 425 | return media_device_register(adap->dvb_adap.mdev); |
| 426 | #else |
| 427 | return 0; |
| 428 | #endif |
| 429 | } |
| 430 | |
| 431 | static void dvb_usbv2_media_device_unregister(struct dvb_usb_adapter *adap) |
| 432 | { |
| 433 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
| 434 | |
| 435 | if (!adap->dvb_adap.mdev) |
| 436 | return; |
| 437 | |
| 438 | media_device_unregister(adap->dvb_adap.mdev); |
| 439 | media_device_cleanup(adap->dvb_adap.mdev); |
| 440 | kfree(adap->dvb_adap.mdev); |
| 441 | adap->dvb_adap.mdev = NULL; |
| 442 | |
| 443 | #endif |
| 444 | } |
| 445 | |
| 446 | static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) |
| 447 | { |
| 448 | int ret; |
| 449 | struct dvb_usb_device *d = adap_to_d(adap); |
| 450 | |
| 451 | dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id); |
| 452 | |
| 453 | ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner, |
| 454 | &d->udev->dev, d->props->adapter_nr); |
| 455 | if (ret < 0) { |
| 456 | dev_dbg(&d->udev->dev, "%s: dvb_register_adapter() failed=%d\n", |
| 457 | __func__, ret); |
| 458 | goto err_dvb_register_adapter; |
| 459 | } |
| 460 | |
| 461 | adap->dvb_adap.priv = adap; |
| 462 | |
| 463 | ret = dvb_usbv2_media_device_init(adap); |
| 464 | if (ret < 0) { |
| 465 | dev_dbg(&d->udev->dev, "%s: dvb_usbv2_media_device_init() failed=%d\n", |
| 466 | __func__, ret); |
| 467 | goto err_dvb_register_mc; |
| 468 | } |
| 469 | |
| 470 | if (d->props->read_mac_address) { |
| 471 | ret = d->props->read_mac_address(adap, |
| 472 | adap->dvb_adap.proposed_mac); |
| 473 | if (ret < 0) |
| 474 | goto err_dvb_dmx_init; |
| 475 | |
| 476 | dev_info(&d->udev->dev, "%s: MAC address: %pM\n", |
| 477 | KBUILD_MODNAME, adap->dvb_adap.proposed_mac); |
| 478 | } |
| 479 | |
| 480 | adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; |
| 481 | adap->demux.priv = adap; |
| 482 | adap->demux.filternum = 0; |
| 483 | adap->demux.filternum = adap->max_feed_count; |
| 484 | adap->demux.feednum = adap->demux.filternum; |
| 485 | adap->demux.start_feed = dvb_usb_start_feed; |
| 486 | adap->demux.stop_feed = dvb_usb_stop_feed; |
| 487 | adap->demux.write_to_decoder = NULL; |
| 488 | ret = dvb_dmx_init(&adap->demux); |
| 489 | if (ret < 0) { |
| 490 | dev_err(&d->udev->dev, "%s: dvb_dmx_init() failed=%d\n", |
| 491 | KBUILD_MODNAME, ret); |
| 492 | goto err_dvb_dmx_init; |
| 493 | } |
| 494 | |
| 495 | adap->dmxdev.filternum = adap->demux.filternum; |
| 496 | adap->dmxdev.demux = &adap->demux.dmx; |
| 497 | adap->dmxdev.capabilities = 0; |
| 498 | ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap); |
| 499 | if (ret < 0) { |
| 500 | dev_err(&d->udev->dev, "%s: dvb_dmxdev_init() failed=%d\n", |
| 501 | KBUILD_MODNAME, ret); |
| 502 | goto err_dvb_dmxdev_init; |
| 503 | } |
| 504 | |
| 505 | ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx); |
| 506 | if (ret < 0) { |
| 507 | dev_err(&d->udev->dev, "%s: dvb_net_init() failed=%d\n", |
| 508 | KBUILD_MODNAME, ret); |
| 509 | goto err_dvb_net_init; |
| 510 | } |
| 511 | |
| 512 | return 0; |
| 513 | err_dvb_net_init: |
| 514 | dvb_dmxdev_release(&adap->dmxdev); |
| 515 | err_dvb_dmxdev_init: |
| 516 | dvb_dmx_release(&adap->demux); |
| 517 | err_dvb_dmx_init: |
| 518 | dvb_usbv2_media_device_unregister(adap); |
| 519 | err_dvb_register_mc: |
| 520 | dvb_unregister_adapter(&adap->dvb_adap); |
| 521 | err_dvb_register_adapter: |
| 522 | adap->dvb_adap.priv = NULL; |
| 523 | return ret; |
| 524 | } |
| 525 | |
| 526 | static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap) |
| 527 | { |
| 528 | dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__, |
| 529 | adap->id); |
| 530 | |
| 531 | if (adap->dvb_adap.priv) { |
| 532 | dvb_net_release(&adap->dvb_net); |
| 533 | adap->demux.dmx.close(&adap->demux.dmx); |
| 534 | dvb_dmxdev_release(&adap->dmxdev); |
| 535 | dvb_dmx_release(&adap->demux); |
| 536 | dvb_unregister_adapter(&adap->dvb_adap); |
| 537 | } |
| 538 | |
| 539 | return 0; |
| 540 | } |
| 541 | |
| 542 | static int dvb_usbv2_device_power_ctrl(struct dvb_usb_device *d, int onoff) |
| 543 | { |
| 544 | int ret; |
| 545 | |
| 546 | if (onoff) |
| 547 | d->powered++; |
| 548 | else |
| 549 | d->powered--; |
| 550 | |
| 551 | if (d->powered == 0 || (onoff && d->powered == 1)) { |
| 552 | /* when switching from 1 to 0 or from 0 to 1 */ |
| 553 | dev_dbg(&d->udev->dev, "%s: power=%d\n", __func__, onoff); |
| 554 | if (d->props->power_ctrl) { |
| 555 | ret = d->props->power_ctrl(d, onoff); |
| 556 | if (ret < 0) |
| 557 | goto err; |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | return 0; |
| 562 | err: |
| 563 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 564 | return ret; |
| 565 | } |
| 566 | |
| 567 | static int dvb_usb_fe_init(struct dvb_frontend *fe) |
| 568 | { |
| 569 | int ret; |
| 570 | struct dvb_usb_adapter *adap = fe->dvb->priv; |
| 571 | struct dvb_usb_device *d = adap_to_d(adap); |
| 572 | dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id, |
| 573 | fe->id); |
| 574 | |
| 575 | if (!adap->suspend_resume_active) { |
| 576 | adap->active_fe = fe->id; |
| 577 | set_bit(ADAP_INIT, &adap->state_bits); |
| 578 | } |
| 579 | |
| 580 | ret = dvb_usbv2_device_power_ctrl(d, 1); |
| 581 | if (ret < 0) |
| 582 | goto err; |
| 583 | |
| 584 | if (d->props->frontend_ctrl) { |
| 585 | ret = d->props->frontend_ctrl(fe, 1); |
| 586 | if (ret < 0) |
| 587 | goto err; |
| 588 | } |
| 589 | |
| 590 | if (adap->fe_init[fe->id]) { |
| 591 | ret = adap->fe_init[fe->id](fe); |
| 592 | if (ret < 0) |
| 593 | goto err; |
| 594 | } |
| 595 | err: |
| 596 | if (!adap->suspend_resume_active) { |
| 597 | clear_bit(ADAP_INIT, &adap->state_bits); |
| 598 | smp_mb__after_atomic(); |
| 599 | wake_up_bit(&adap->state_bits, ADAP_INIT); |
| 600 | } |
| 601 | |
| 602 | dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret); |
| 603 | return ret; |
| 604 | } |
| 605 | |
| 606 | static int dvb_usb_fe_sleep(struct dvb_frontend *fe) |
| 607 | { |
| 608 | int ret; |
| 609 | struct dvb_usb_adapter *adap = fe->dvb->priv; |
| 610 | struct dvb_usb_device *d = adap_to_d(adap); |
| 611 | dev_dbg(&d->udev->dev, "%s: adap=%d fe=%d\n", __func__, adap->id, |
| 612 | fe->id); |
| 613 | |
| 614 | if (!adap->suspend_resume_active) { |
| 615 | set_bit(ADAP_SLEEP, &adap->state_bits); |
| 616 | wait_on_bit(&adap->state_bits, ADAP_STREAMING, |
| 617 | TASK_UNINTERRUPTIBLE); |
| 618 | } |
| 619 | |
| 620 | if (adap->fe_sleep[fe->id]) { |
| 621 | ret = adap->fe_sleep[fe->id](fe); |
| 622 | if (ret < 0) |
| 623 | goto err; |
| 624 | } |
| 625 | |
| 626 | if (d->props->frontend_ctrl) { |
| 627 | ret = d->props->frontend_ctrl(fe, 0); |
| 628 | if (ret < 0) |
| 629 | goto err; |
| 630 | } |
| 631 | |
| 632 | ret = dvb_usbv2_device_power_ctrl(d, 0); |
| 633 | if (ret < 0) |
| 634 | goto err; |
| 635 | err: |
| 636 | if (!adap->suspend_resume_active) { |
| 637 | adap->active_fe = -1; |
| 638 | clear_bit(ADAP_SLEEP, &adap->state_bits); |
| 639 | smp_mb__after_atomic(); |
| 640 | wake_up_bit(&adap->state_bits, ADAP_SLEEP); |
| 641 | } |
| 642 | |
| 643 | dev_dbg(&d->udev->dev, "%s: ret=%d\n", __func__, ret); |
| 644 | return ret; |
| 645 | } |
| 646 | |
| 647 | static int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap) |
| 648 | { |
| 649 | int ret, i, count_registered = 0; |
| 650 | struct dvb_usb_device *d = adap_to_d(adap); |
| 651 | dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id); |
| 652 | |
| 653 | memset(adap->fe, 0, sizeof(adap->fe)); |
| 654 | adap->active_fe = -1; |
| 655 | |
| 656 | if (d->props->frontend_attach) { |
| 657 | ret = d->props->frontend_attach(adap); |
| 658 | if (ret < 0) { |
| 659 | dev_dbg(&d->udev->dev, |
| 660 | "%s: frontend_attach() failed=%d\n", |
| 661 | __func__, ret); |
| 662 | goto err_dvb_frontend_detach; |
| 663 | } |
| 664 | } else { |
| 665 | dev_dbg(&d->udev->dev, "%s: frontend_attach() do not exists\n", |
| 666 | __func__); |
| 667 | ret = 0; |
| 668 | goto err; |
| 669 | } |
| 670 | |
| 671 | for (i = 0; i < MAX_NO_OF_FE_PER_ADAP && adap->fe[i]; i++) { |
| 672 | adap->fe[i]->id = i; |
| 673 | /* re-assign sleep and wakeup functions */ |
| 674 | adap->fe_init[i] = adap->fe[i]->ops.init; |
| 675 | adap->fe[i]->ops.init = dvb_usb_fe_init; |
| 676 | adap->fe_sleep[i] = adap->fe[i]->ops.sleep; |
| 677 | adap->fe[i]->ops.sleep = dvb_usb_fe_sleep; |
| 678 | |
| 679 | ret = dvb_register_frontend(&adap->dvb_adap, adap->fe[i]); |
| 680 | if (ret < 0) { |
| 681 | dev_err(&d->udev->dev, |
| 682 | "%s: frontend%d registration failed\n", |
| 683 | KBUILD_MODNAME, i); |
| 684 | goto err_dvb_unregister_frontend; |
| 685 | } |
| 686 | |
| 687 | count_registered++; |
| 688 | } |
| 689 | |
| 690 | if (d->props->tuner_attach) { |
| 691 | ret = d->props->tuner_attach(adap); |
| 692 | if (ret < 0) { |
| 693 | dev_dbg(&d->udev->dev, "%s: tuner_attach() failed=%d\n", |
| 694 | __func__, ret); |
| 695 | goto err_dvb_unregister_frontend; |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | ret = dvb_create_media_graph(&adap->dvb_adap, true); |
| 700 | if (ret < 0) |
| 701 | goto err_dvb_unregister_frontend; |
| 702 | |
| 703 | ret = dvb_usbv2_media_device_register(adap); |
| 704 | |
| 705 | return ret; |
| 706 | |
| 707 | err_dvb_unregister_frontend: |
| 708 | for (i = count_registered - 1; i >= 0; i--) |
| 709 | dvb_unregister_frontend(adap->fe[i]); |
| 710 | |
| 711 | err_dvb_frontend_detach: |
| 712 | for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) { |
| 713 | if (adap->fe[i]) { |
| 714 | dvb_frontend_detach(adap->fe[i]); |
| 715 | adap->fe[i] = NULL; |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | err: |
| 720 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 721 | return ret; |
| 722 | } |
| 723 | |
| 724 | static int dvb_usbv2_adapter_frontend_exit(struct dvb_usb_adapter *adap) |
| 725 | { |
| 726 | int ret, i; |
| 727 | struct dvb_usb_device *d = adap_to_d(adap); |
| 728 | |
| 729 | dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id); |
| 730 | |
| 731 | for (i = MAX_NO_OF_FE_PER_ADAP - 1; i >= 0; i--) { |
| 732 | if (adap->fe[i]) { |
| 733 | dvb_unregister_frontend(adap->fe[i]); |
| 734 | dvb_frontend_detach(adap->fe[i]); |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | if (d->props->tuner_detach) { |
| 739 | ret = d->props->tuner_detach(adap); |
| 740 | if (ret < 0) { |
| 741 | dev_dbg(&d->udev->dev, "%s: tuner_detach() failed=%d\n", |
| 742 | __func__, ret); |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | if (d->props->frontend_detach) { |
| 747 | ret = d->props->frontend_detach(adap); |
| 748 | if (ret < 0) { |
| 749 | dev_dbg(&d->udev->dev, |
| 750 | "%s: frontend_detach() failed=%d\n", |
| 751 | __func__, ret); |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | return 0; |
| 756 | } |
| 757 | |
| 758 | static int dvb_usbv2_adapter_init(struct dvb_usb_device *d) |
| 759 | { |
| 760 | struct dvb_usb_adapter *adap; |
| 761 | int ret, i, adapter_count; |
| 762 | |
| 763 | /* resolve adapter count */ |
| 764 | adapter_count = d->props->num_adapters; |
| 765 | if (d->props->get_adapter_count) { |
| 766 | ret = d->props->get_adapter_count(d); |
| 767 | if (ret < 0) |
| 768 | goto err; |
| 769 | |
| 770 | adapter_count = ret; |
| 771 | } |
| 772 | |
| 773 | for (i = 0; i < adapter_count; i++) { |
| 774 | adap = &d->adapter[i]; |
| 775 | adap->id = i; |
| 776 | adap->props = &d->props->adapter[i]; |
| 777 | |
| 778 | /* speed - when running at FULL speed we need a HW PID filter */ |
| 779 | if (d->udev->speed == USB_SPEED_FULL && |
| 780 | !(adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) { |
| 781 | dev_err(&d->udev->dev, |
| 782 | "%s: this USB2.0 device cannot be run on a USB1.1 port (it lacks a hardware PID filter)\n", |
| 783 | KBUILD_MODNAME); |
| 784 | ret = -ENODEV; |
| 785 | goto err; |
| 786 | } else if ((d->udev->speed == USB_SPEED_FULL && |
| 787 | adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) || |
| 788 | (adap->props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) { |
| 789 | dev_info(&d->udev->dev, |
| 790 | "%s: will use the device's hardware PID filter (table count: %d)\n", |
| 791 | KBUILD_MODNAME, |
| 792 | adap->props->pid_filter_count); |
| 793 | adap->pid_filtering = 1; |
| 794 | adap->max_feed_count = adap->props->pid_filter_count; |
| 795 | } else { |
| 796 | dev_info(&d->udev->dev, |
| 797 | "%s: will pass the complete MPEG2 transport stream to the software demuxer\n", |
| 798 | KBUILD_MODNAME); |
| 799 | adap->pid_filtering = 0; |
| 800 | adap->max_feed_count = 255; |
| 801 | } |
| 802 | |
| 803 | if (!adap->pid_filtering && dvb_usb_force_pid_filter_usage && |
| 804 | adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) { |
| 805 | dev_info(&d->udev->dev, |
| 806 | "%s: PID filter enabled by module option\n", |
| 807 | KBUILD_MODNAME); |
| 808 | adap->pid_filtering = 1; |
| 809 | adap->max_feed_count = adap->props->pid_filter_count; |
| 810 | } |
| 811 | |
| 812 | ret = dvb_usbv2_adapter_stream_init(adap); |
| 813 | if (ret) |
| 814 | goto err; |
| 815 | |
| 816 | ret = dvb_usbv2_adapter_dvb_init(adap); |
| 817 | if (ret) |
| 818 | goto err; |
| 819 | |
| 820 | ret = dvb_usbv2_adapter_frontend_init(adap); |
| 821 | if (ret) |
| 822 | goto err; |
| 823 | |
| 824 | /* use exclusive FE lock if there is multiple shared FEs */ |
| 825 | if (adap->fe[1]) |
| 826 | adap->dvb_adap.mfe_shared = 1; |
| 827 | } |
| 828 | |
| 829 | return 0; |
| 830 | err: |
| 831 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 832 | return ret; |
| 833 | } |
| 834 | |
| 835 | static int dvb_usbv2_adapter_exit(struct dvb_usb_device *d) |
| 836 | { |
| 837 | int i; |
| 838 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 839 | |
| 840 | for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) { |
| 841 | if (d->adapter[i].props) { |
| 842 | dvb_usbv2_adapter_dvb_exit(&d->adapter[i]); |
| 843 | dvb_usbv2_adapter_stream_exit(&d->adapter[i]); |
| 844 | dvb_usbv2_adapter_frontend_exit(&d->adapter[i]); |
| 845 | dvb_usbv2_media_device_unregister(&d->adapter[i]); |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | return 0; |
| 850 | } |
| 851 | |
| 852 | /* general initialization functions */ |
| 853 | static int dvb_usbv2_exit(struct dvb_usb_device *d) |
| 854 | { |
| 855 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 856 | |
| 857 | dvb_usbv2_remote_exit(d); |
| 858 | dvb_usbv2_adapter_exit(d); |
| 859 | dvb_usbv2_i2c_exit(d); |
| 860 | kfree(d->priv); |
| 861 | kfree(d); |
| 862 | |
| 863 | return 0; |
| 864 | } |
| 865 | |
| 866 | static int dvb_usbv2_init(struct dvb_usb_device *d) |
| 867 | { |
| 868 | int ret; |
| 869 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 870 | |
| 871 | dvb_usbv2_device_power_ctrl(d, 1); |
| 872 | |
| 873 | if (d->props->read_config) { |
| 874 | ret = d->props->read_config(d); |
| 875 | if (ret < 0) |
| 876 | goto err; |
| 877 | } |
| 878 | |
| 879 | ret = dvb_usbv2_i2c_init(d); |
| 880 | if (ret < 0) |
| 881 | goto err; |
| 882 | |
| 883 | ret = dvb_usbv2_adapter_init(d); |
| 884 | if (ret < 0) |
| 885 | goto err; |
| 886 | |
| 887 | if (d->props->init) { |
| 888 | ret = d->props->init(d); |
| 889 | if (ret < 0) |
| 890 | goto err; |
| 891 | } |
| 892 | |
| 893 | ret = dvb_usbv2_remote_init(d); |
| 894 | if (ret < 0) |
| 895 | goto err; |
| 896 | |
| 897 | dvb_usbv2_device_power_ctrl(d, 0); |
| 898 | |
| 899 | return 0; |
| 900 | err: |
| 901 | dvb_usbv2_device_power_ctrl(d, 0); |
| 902 | dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); |
| 903 | return ret; |
| 904 | } |
| 905 | |
| 906 | int dvb_usbv2_probe(struct usb_interface *intf, |
| 907 | const struct usb_device_id *id) |
| 908 | { |
| 909 | int ret; |
| 910 | struct dvb_usb_device *d; |
| 911 | struct usb_device *udev = interface_to_usbdev(intf); |
| 912 | struct dvb_usb_driver_info *driver_info = |
| 913 | (struct dvb_usb_driver_info *) id->driver_info; |
| 914 | |
| 915 | dev_dbg(&udev->dev, "%s: bInterfaceNumber=%d\n", __func__, |
| 916 | intf->cur_altsetting->desc.bInterfaceNumber); |
| 917 | |
| 918 | if (!id->driver_info) { |
| 919 | dev_err(&udev->dev, "%s: driver_info failed\n", KBUILD_MODNAME); |
| 920 | ret = -ENODEV; |
| 921 | goto err; |
| 922 | } |
| 923 | |
| 924 | d = kzalloc(sizeof(struct dvb_usb_device), GFP_KERNEL); |
| 925 | if (!d) { |
| 926 | dev_err(&udev->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME); |
| 927 | ret = -ENOMEM; |
| 928 | goto err; |
| 929 | } |
| 930 | |
| 931 | d->intf = intf; |
| 932 | d->name = driver_info->name; |
| 933 | d->rc_map = driver_info->rc_map; |
| 934 | d->udev = udev; |
| 935 | d->props = driver_info->props; |
| 936 | |
| 937 | if (intf->cur_altsetting->desc.bInterfaceNumber != |
| 938 | d->props->bInterfaceNumber) { |
| 939 | ret = -ENODEV; |
| 940 | goto err_free_all; |
| 941 | } |
| 942 | |
| 943 | mutex_init(&d->usb_mutex); |
| 944 | mutex_init(&d->i2c_mutex); |
| 945 | |
| 946 | if (d->props->size_of_priv) { |
| 947 | d->priv = kzalloc(d->props->size_of_priv, GFP_KERNEL); |
| 948 | if (!d->priv) { |
| 949 | dev_err(&d->udev->dev, "%s: kzalloc() failed\n", |
| 950 | KBUILD_MODNAME); |
| 951 | ret = -ENOMEM; |
| 952 | goto err_free_all; |
| 953 | } |
| 954 | } |
| 955 | |
| 956 | if (d->props->identify_state) { |
| 957 | const char *name = NULL; |
| 958 | ret = d->props->identify_state(d, &name); |
| 959 | if (ret == 0) { |
| 960 | ; |
| 961 | } else if (ret == COLD) { |
| 962 | dev_info(&d->udev->dev, |
| 963 | "%s: found a '%s' in cold state\n", |
| 964 | KBUILD_MODNAME, d->name); |
| 965 | |
| 966 | if (!name) |
| 967 | name = d->props->firmware; |
| 968 | |
| 969 | ret = dvb_usbv2_download_firmware(d, name); |
| 970 | if (ret == 0) { |
| 971 | /* device is warm, continue initialization */ |
| 972 | ; |
| 973 | } else if (ret == RECONNECTS_USB) { |
| 974 | /* |
| 975 | * USB core will call disconnect() and then |
| 976 | * probe() as device reconnects itself from the |
| 977 | * USB bus. disconnect() will release all driver |
| 978 | * resources and probe() is called for 'new' |
| 979 | * device. As 'new' device is warm we should |
| 980 | * never go here again. |
| 981 | */ |
| 982 | goto exit; |
| 983 | } else { |
| 984 | goto err_free_all; |
| 985 | } |
| 986 | } else { |
| 987 | goto err_free_all; |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | dev_info(&d->udev->dev, "%s: found a '%s' in warm state\n", |
| 992 | KBUILD_MODNAME, d->name); |
| 993 | |
| 994 | ret = dvb_usbv2_init(d); |
| 995 | if (ret < 0) |
| 996 | goto err_free_all; |
| 997 | |
| 998 | dev_info(&d->udev->dev, |
| 999 | "%s: '%s' successfully initialized and connected\n", |
| 1000 | KBUILD_MODNAME, d->name); |
| 1001 | exit: |
| 1002 | usb_set_intfdata(intf, d); |
| 1003 | |
| 1004 | return 0; |
| 1005 | err_free_all: |
| 1006 | dvb_usbv2_exit(d); |
| 1007 | err: |
| 1008 | dev_dbg(&udev->dev, "%s: failed=%d\n", __func__, ret); |
| 1009 | return ret; |
| 1010 | } |
| 1011 | EXPORT_SYMBOL(dvb_usbv2_probe); |
| 1012 | |
| 1013 | void dvb_usbv2_disconnect(struct usb_interface *intf) |
| 1014 | { |
| 1015 | struct dvb_usb_device *d = usb_get_intfdata(intf); |
| 1016 | const char *name = d->name; |
| 1017 | struct device dev = d->udev->dev; |
| 1018 | |
| 1019 | dev_dbg(&d->udev->dev, "%s: bInterfaceNumber=%d\n", __func__, |
| 1020 | intf->cur_altsetting->desc.bInterfaceNumber); |
| 1021 | |
| 1022 | if (d->props->exit) |
| 1023 | d->props->exit(d); |
| 1024 | |
| 1025 | dvb_usbv2_exit(d); |
| 1026 | |
| 1027 | dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n", |
| 1028 | KBUILD_MODNAME, name); |
| 1029 | } |
| 1030 | EXPORT_SYMBOL(dvb_usbv2_disconnect); |
| 1031 | |
| 1032 | int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg) |
| 1033 | { |
| 1034 | struct dvb_usb_device *d = usb_get_intfdata(intf); |
| 1035 | int ret = 0, i, active_fe; |
| 1036 | struct dvb_frontend *fe; |
| 1037 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 1038 | |
| 1039 | /* stop remote controller poll */ |
| 1040 | if (d->rc_polling_active) |
| 1041 | cancel_delayed_work_sync(&d->rc_query_work); |
| 1042 | |
| 1043 | for (i = MAX_NO_OF_ADAPTER_PER_DEVICE - 1; i >= 0; i--) { |
| 1044 | active_fe = d->adapter[i].active_fe; |
| 1045 | if (d->adapter[i].dvb_adap.priv && active_fe != -1) { |
| 1046 | fe = d->adapter[i].fe[active_fe]; |
| 1047 | d->adapter[i].suspend_resume_active = true; |
| 1048 | |
| 1049 | if (d->props->streaming_ctrl) |
| 1050 | d->props->streaming_ctrl(fe, 0); |
| 1051 | |
| 1052 | /* stop usb streaming */ |
| 1053 | usb_urb_killv2(&d->adapter[i].stream); |
| 1054 | |
| 1055 | ret = dvb_frontend_suspend(fe); |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | return ret; |
| 1060 | } |
| 1061 | EXPORT_SYMBOL(dvb_usbv2_suspend); |
| 1062 | |
| 1063 | static int dvb_usbv2_resume_common(struct dvb_usb_device *d) |
| 1064 | { |
| 1065 | int ret = 0, i, active_fe; |
| 1066 | struct dvb_frontend *fe; |
| 1067 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 1068 | |
| 1069 | for (i = 0; i < MAX_NO_OF_ADAPTER_PER_DEVICE; i++) { |
| 1070 | active_fe = d->adapter[i].active_fe; |
| 1071 | if (d->adapter[i].dvb_adap.priv && active_fe != -1) { |
| 1072 | fe = d->adapter[i].fe[active_fe]; |
| 1073 | |
| 1074 | ret = dvb_frontend_resume(fe); |
| 1075 | |
| 1076 | /* resume usb streaming */ |
| 1077 | usb_urb_submitv2(&d->adapter[i].stream, NULL); |
| 1078 | |
| 1079 | if (d->props->streaming_ctrl) |
| 1080 | d->props->streaming_ctrl(fe, 1); |
| 1081 | |
| 1082 | d->adapter[i].suspend_resume_active = false; |
| 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | /* start remote controller poll */ |
| 1087 | if (d->rc_polling_active) |
| 1088 | schedule_delayed_work(&d->rc_query_work, |
| 1089 | msecs_to_jiffies(d->rc.interval)); |
| 1090 | |
| 1091 | return ret; |
| 1092 | } |
| 1093 | |
| 1094 | int dvb_usbv2_resume(struct usb_interface *intf) |
| 1095 | { |
| 1096 | struct dvb_usb_device *d = usb_get_intfdata(intf); |
| 1097 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 1098 | |
| 1099 | return dvb_usbv2_resume_common(d); |
| 1100 | } |
| 1101 | EXPORT_SYMBOL(dvb_usbv2_resume); |
| 1102 | |
| 1103 | int dvb_usbv2_reset_resume(struct usb_interface *intf) |
| 1104 | { |
| 1105 | struct dvb_usb_device *d = usb_get_intfdata(intf); |
| 1106 | int ret; |
| 1107 | dev_dbg(&d->udev->dev, "%s:\n", __func__); |
| 1108 | |
| 1109 | dvb_usbv2_device_power_ctrl(d, 1); |
| 1110 | |
| 1111 | if (d->props->init) |
| 1112 | d->props->init(d); |
| 1113 | |
| 1114 | ret = dvb_usbv2_resume_common(d); |
| 1115 | |
| 1116 | dvb_usbv2_device_power_ctrl(d, 0); |
| 1117 | |
| 1118 | return ret; |
| 1119 | } |
| 1120 | EXPORT_SYMBOL(dvb_usbv2_reset_resume); |
| 1121 | |
| 1122 | MODULE_VERSION("2.0"); |
| 1123 | MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>"); |
| 1124 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |
| 1125 | MODULE_DESCRIPTION("DVB USB common"); |
| 1126 | MODULE_LICENSE("GPL"); |