2 * Driver for the Auvitek USB bridge
4 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * 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
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <linux/module.h>
25 #include <linux/slab.h>
26 #include <linux/init.h>
27 #include <linux/device.h>
28 #include <media/v4l2-common.h>
29 #include <media/tuner.h>
36 static int preallocate_big_buffers;
37 module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
38 MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
40 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
42 #define _AU0828_BULKPIPE 0x83
43 #define _BULKPIPESIZE 0xe522
45 static u8 hauppauge_hvr950q_led_states[] = {
51 static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
52 .gpio_output = 0x00e0,
53 .gpio_output_enable = 0x6006,
54 .gpio_output_disable = 0x0660,
57 .led_states = hauppauge_hvr950q_led_states,
58 .num_led_states = sizeof(hauppauge_hvr950q_led_states),
60 .vsb8_strong = 20 /* dB */ * 10,
61 .qam64_strong = 25 /* dB */ * 10,
62 .qam256_strong = 32 /* dB */ * 10,
65 static struct au8522_config hauppauge_hvr950q_config = {
66 .demod_address = 0x8e >> 1,
67 .status_mode = AU8522_DEMODLOCKING,
68 .qam_if = AU8522_IF_6MHZ,
69 .vsb_if = AU8522_IF_6MHZ,
70 .led_cfg = &hauppauge_hvr950q_led_cfg,
73 static struct au8522_config fusionhdtv7usb_config = {
74 .demod_address = 0x8e >> 1,
75 .status_mode = AU8522_DEMODLOCKING,
76 .qam_if = AU8522_IF_6MHZ,
77 .vsb_if = AU8522_IF_6MHZ,
80 static struct au8522_config hauppauge_woodbury_config = {
81 .demod_address = 0x8e >> 1,
82 .status_mode = AU8522_DEMODLOCKING,
83 .qam_if = AU8522_IF_4MHZ,
84 .vsb_if = AU8522_IF_3_25MHZ,
87 static struct xc5000_config hauppauge_xc5000a_config = {
94 static struct xc5000_config hauppauge_xc5000c_config = {
101 static struct mxl5007t_config mxl5007t_hvr950q_config = {
102 .xtal_freq_hz = MxL_XTAL_24_MHZ,
103 .if_freq_hz = MxL_IF_6_MHZ,
106 static struct tda18271_config hauppauge_woodbury_tunerconfig = {
107 .gate = TDA18271_GATE_DIGITAL,
110 static void au0828_restart_dvb_streaming(struct work_struct *work);
112 /*-------------------------------------------------------------------*/
113 static void urb_completion(struct urb *purb)
115 struct au0828_dev *dev = purb->context;
116 int ptype = usb_pipetype(purb->pipe);
119 dprintk(2, "%s: %d\n", __func__, purb->actual_length);
122 dprintk(2, "%s: no dev!\n", __func__);
126 if (!dev->urb_streaming) {
127 dprintk(2, "%s: not streaming!\n", __func__);
131 if (ptype != PIPE_BULK) {
132 pr_err("%s: Unsupported URB type %d\n",
137 /* See if the stream is corrupted (to work around a hardware
138 bug where the stream gets misaligned */
139 ptr = purb->transfer_buffer;
140 if (purb->actual_length > 0 && ptr[0] != 0x47) {
141 dprintk(1, "Need to restart streaming %02x len=%d!\n",
142 ptr[0], purb->actual_length);
143 schedule_work(&dev->restart_streaming);
147 /* Feed the transport payload into the kernel demux */
148 dvb_dmx_swfilter_packets(&dev->dvb.demux,
149 purb->transfer_buffer, purb->actual_length / 188);
151 /* Clean the buffer before we requeue */
152 memset(purb->transfer_buffer, 0, URB_BUFSIZE);
155 usb_submit_urb(purb, GFP_ATOMIC);
158 static int stop_urb_transfer(struct au0828_dev *dev)
162 dprintk(2, "%s()\n", __func__);
164 if (!dev->urb_streaming)
167 dev->urb_streaming = false;
168 for (i = 0; i < URB_COUNT; i++) {
170 usb_kill_urb(dev->urbs[i]);
171 if (!preallocate_big_buffers)
172 kfree(dev->urbs[i]->transfer_buffer);
174 usb_free_urb(dev->urbs[i]);
181 static int start_urb_transfer(struct au0828_dev *dev)
184 int i, ret = -ENOMEM;
186 dprintk(2, "%s()\n", __func__);
188 if (dev->urb_streaming) {
189 dprintk(2, "%s: bulk xfer already running!\n", __func__);
193 for (i = 0; i < URB_COUNT; i++) {
195 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
201 if (preallocate_big_buffers)
202 purb->transfer_buffer = dev->dig_transfer_buffer[i];
204 purb->transfer_buffer = kzalloc(URB_BUFSIZE,
207 if (!purb->transfer_buffer) {
210 pr_err("%s: failed big buffer allocation, err = %d\n",
215 purb->status = -EINPROGRESS;
216 usb_fill_bulk_urb(purb,
218 usb_rcvbulkpipe(dev->usbdev,
220 purb->transfer_buffer,
227 for (i = 0; i < URB_COUNT; i++) {
228 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
230 stop_urb_transfer(dev);
231 pr_err("%s: failed urb submission, err = %d\n",
237 dev->urb_streaming = true;
244 static void au0828_start_transport(struct au0828_dev *dev)
246 au0828_write(dev, 0x608, 0x90);
247 au0828_write(dev, 0x609, 0x72);
248 au0828_write(dev, 0x60a, 0x71);
249 au0828_write(dev, 0x60b, 0x01);
253 static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
256 au0828_write(dev, 0x608, 0x00);
257 au0828_write(dev, 0x609, 0x00);
258 au0828_write(dev, 0x60a, 0x00);
260 au0828_write(dev, 0x60b, 0x00);
263 static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
265 struct dvb_demux *demux = feed->demux;
266 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
267 struct au0828_dvb *dvb = &dev->dvb;
270 dprintk(1, "%s()\n", __func__);
272 if (!demux->dmx.frontend)
276 mutex_lock(&dvb->lock);
278 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
279 dvb->start_count, dvb->stop_count);
280 if (dvb->feeding++ == 0) {
281 /* Start transport */
282 au0828_start_transport(dev);
283 ret = start_urb_transfer(dev);
285 au0828_stop_transport(dev, 0);
286 dvb->feeding--; /* We ran out of memory... */
289 mutex_unlock(&dvb->lock);
295 static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
297 struct dvb_demux *demux = feed->demux;
298 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
299 struct au0828_dvb *dvb = &dev->dvb;
302 dprintk(1, "%s()\n", __func__);
305 cancel_work_sync(&dev->restart_streaming);
307 mutex_lock(&dvb->lock);
309 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
310 dvb->start_count, dvb->stop_count);
311 if (dvb->feeding > 0) {
313 if (dvb->feeding == 0) {
315 ret = stop_urb_transfer(dev);
316 au0828_stop_transport(dev, 0);
319 mutex_unlock(&dvb->lock);
325 static void au0828_restart_dvb_streaming(struct work_struct *work)
327 struct au0828_dev *dev = container_of(work, struct au0828_dev,
329 struct au0828_dvb *dvb = &dev->dvb;
331 if (!dev->urb_streaming)
334 dprintk(1, "Restarting streaming...!\n");
336 mutex_lock(&dvb->lock);
339 stop_urb_transfer(dev);
340 au0828_stop_transport(dev, 1);
342 /* Start transport */
343 au0828_start_transport(dev);
344 start_urb_transfer(dev);
346 mutex_unlock(&dvb->lock);
349 static int au0828_set_frontend(struct dvb_frontend *fe)
351 struct au0828_dev *dev = fe->dvb->priv;
352 struct au0828_dvb *dvb = &dev->dvb;
353 int ret, was_streaming;
355 mutex_lock(&dvb->lock);
356 was_streaming = dev->urb_streaming;
358 au0828_stop_transport(dev, 1);
361 * We can't hold a mutex here, as the restart_streaming
362 * kthread may also hold it.
364 mutex_unlock(&dvb->lock);
365 cancel_work_sync(&dev->restart_streaming);
366 mutex_lock(&dvb->lock);
368 stop_urb_transfer(dev);
370 mutex_unlock(&dvb->lock);
372 ret = dvb->set_frontend(fe);
375 mutex_lock(&dvb->lock);
376 au0828_start_transport(dev);
377 start_urb_transfer(dev);
378 mutex_unlock(&dvb->lock);
384 static int dvb_register(struct au0828_dev *dev)
386 struct au0828_dvb *dvb = &dev->dvb;
389 dprintk(1, "%s()\n", __func__);
391 if (preallocate_big_buffers) {
393 for (i = 0; i < URB_COUNT; i++) {
394 dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
397 if (!dev->dig_transfer_buffer[i]) {
400 pr_err("failed buffer allocation (errno = %d)\n",
407 INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
409 /* register adapter */
410 result = dvb_register_adapter(&dvb->adapter,
411 KBUILD_MODNAME, THIS_MODULE,
412 &dev->usbdev->dev, adapter_nr);
414 pr_err("dvb_register_adapter failed (errno = %d)\n",
419 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
420 dvb->adapter.mdev = dev->media_dev;
423 dvb->adapter.priv = dev;
425 /* register frontend */
426 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
428 pr_err("dvb_register_frontend failed (errno = %d)\n",
433 /* Hook dvb frontend */
434 dvb->set_frontend = dvb->frontend->ops.set_frontend;
435 dvb->frontend->ops.set_frontend = au0828_set_frontend;
437 /* register demux stuff */
438 dvb->demux.dmx.capabilities =
439 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
440 DMX_MEMORY_BASED_FILTERING;
441 dvb->demux.priv = dev;
442 dvb->demux.filternum = 256;
443 dvb->demux.feednum = 256;
444 dvb->demux.start_feed = au0828_dvb_start_feed;
445 dvb->demux.stop_feed = au0828_dvb_stop_feed;
446 result = dvb_dmx_init(&dvb->demux);
448 pr_err("dvb_dmx_init failed (errno = %d)\n", result);
452 dvb->dmxdev.filternum = 256;
453 dvb->dmxdev.demux = &dvb->demux.dmx;
454 dvb->dmxdev.capabilities = 0;
455 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
457 pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
461 dvb->fe_hw.source = DMX_FRONTEND_0;
462 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
464 pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
469 dvb->fe_mem.source = DMX_MEMORY_FE;
470 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
472 pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
477 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
479 pr_err("connect_frontend failed (errno = %d)\n", result);
483 /* register network adapter */
484 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
486 dvb->start_count = 0;
489 result = dvb_create_media_graph(&dvb->adapter, false);
491 goto fail_create_graph;
496 dvb_net_release(&dvb->net);
498 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
500 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
502 dvb_dmxdev_release(&dvb->dmxdev);
504 dvb_dmx_release(&dvb->demux);
506 dvb_unregister_frontend(dvb->frontend);
508 dvb_frontend_detach(dvb->frontend);
509 dvb_unregister_adapter(&dvb->adapter);
512 if (preallocate_big_buffers) {
514 for (i = 0; i < URB_COUNT; i++)
515 kfree(dev->dig_transfer_buffer[i]);
521 void au0828_dvb_unregister(struct au0828_dev *dev)
523 struct au0828_dvb *dvb = &dev->dvb;
525 dprintk(1, "%s()\n", __func__);
527 if (dvb->frontend == NULL)
530 cancel_work_sync(&dev->restart_streaming);
532 dvb_net_release(&dvb->net);
533 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
534 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
535 dvb_dmxdev_release(&dvb->dmxdev);
536 dvb_dmx_release(&dvb->demux);
537 dvb_unregister_frontend(dvb->frontend);
538 dvb_frontend_detach(dvb->frontend);
539 dvb_unregister_adapter(&dvb->adapter);
541 if (preallocate_big_buffers) {
543 for (i = 0; i < URB_COUNT; i++)
544 kfree(dev->dig_transfer_buffer[i]);
546 dvb->frontend = NULL;
549 /* All the DVB attach calls go here, this function get's modified
550 * for each new card. No other function in this file needs
553 int au0828_dvb_register(struct au0828_dev *dev)
555 struct au0828_dvb *dvb = &dev->dvb;
558 dprintk(1, "%s()\n", __func__);
561 switch (dev->boardnr) {
562 case AU0828_BOARD_HAUPPAUGE_HVR850:
563 case AU0828_BOARD_HAUPPAUGE_HVR950Q:
564 dvb->frontend = dvb_attach(au8522_attach,
565 &hauppauge_hvr950q_config,
567 if (dvb->frontend != NULL)
568 switch (dev->board.tuner_type) {
571 dvb_attach(xc5000_attach, dvb->frontend,
573 &hauppauge_xc5000a_config);
576 dvb_attach(xc5000_attach, dvb->frontend,
578 &hauppauge_xc5000c_config);
582 case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
583 dvb->frontend = dvb_attach(au8522_attach,
584 &hauppauge_hvr950q_config,
586 if (dvb->frontend != NULL)
587 dvb_attach(mxl5007t_attach, dvb->frontend,
588 &dev->i2c_adap, 0x60,
589 &mxl5007t_hvr950q_config);
591 case AU0828_BOARD_HAUPPAUGE_WOODBURY:
592 dvb->frontend = dvb_attach(au8522_attach,
593 &hauppauge_woodbury_config,
595 if (dvb->frontend != NULL)
596 dvb_attach(tda18271_attach, dvb->frontend,
597 0x60, &dev->i2c_adap,
598 &hauppauge_woodbury_tunerconfig);
600 case AU0828_BOARD_DVICO_FUSIONHDTV7:
601 dvb->frontend = dvb_attach(au8522_attach,
602 &fusionhdtv7usb_config,
604 if (dvb->frontend != NULL) {
605 dvb_attach(xc5000_attach, dvb->frontend,
607 &hauppauge_xc5000a_config);
611 pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
614 if (NULL == dvb->frontend) {
615 pr_err("%s() Frontend initialization failed\n",
619 /* define general-purpose callback pointer */
620 dvb->frontend->callback = au0828_tuner_callback;
622 /* register everything */
623 ret = dvb_register(dev);
625 if (dvb->frontend->ops.release)
626 dvb->frontend->ops.release(dvb->frontend);
627 dvb->frontend = NULL;
634 void au0828_dvb_suspend(struct au0828_dev *dev)
636 struct au0828_dvb *dvb = &dev->dvb;
640 if (dev->urb_streaming) {
641 cancel_work_sync(&dev->restart_streaming);
643 mutex_lock(&dvb->lock);
644 stop_urb_transfer(dev);
645 au0828_stop_transport(dev, 1);
646 mutex_unlock(&dvb->lock);
647 dev->need_urb_start = true;
649 /* suspend frontend - does tuner and fe to sleep */
650 rc = dvb_frontend_suspend(dvb->frontend);
651 pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
655 void au0828_dvb_resume(struct au0828_dev *dev)
657 struct au0828_dvb *dvb = &dev->dvb;
661 /* resume frontend - does fe and tuner init */
662 rc = dvb_frontend_resume(dvb->frontend);
663 pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
664 if (dev->need_urb_start) {
665 /* Start transport */
666 mutex_lock(&dvb->lock);
667 au0828_start_transport(dev);
668 start_urb_transfer(dev);
669 mutex_unlock(&dvb->lock);