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22#include "au0828.h"
23
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>
30
31#include "au8522.h"
32#include "xc5000.h"
33#include "mxl5007t.h"
34#include "tda18271.h"
35
36static int preallocate_big_buffers;
37module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
38MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
39
40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
41
42#define _AU0828_BULKPIPE 0x83
43#define _BULKPIPESIZE 0xe522
44
45static u8 hauppauge_hvr950q_led_states[] = {
46 0x00,
47 0x02,
48 0x04,
49};
50
51static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
52 .gpio_output = 0x00e0,
53 .gpio_output_enable = 0x6006,
54 .gpio_output_disable = 0x0660,
55
56 .gpio_leds = 0x00e2,
57 .led_states = hauppauge_hvr950q_led_states,
58 .num_led_states = sizeof(hauppauge_hvr950q_led_states),
59
60 .vsb8_strong = 20 * 10,
61 .qam64_strong = 25 * 10,
62 .qam256_strong = 32 * 10,
63};
64
65static 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,
71};
72
73static 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,
78};
79
80static 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,
85};
86
87static struct xc5000_config hauppauge_xc5000a_config = {
88 .i2c_address = 0x61,
89 .if_khz = 6000,
90 .chip_id = XC5000A,
91 .output_amp = 0x8f,
92};
93
94static struct xc5000_config hauppauge_xc5000c_config = {
95 .i2c_address = 0x61,
96 .if_khz = 6000,
97 .chip_id = XC5000C,
98 .output_amp = 0x8f,
99};
100
101static struct mxl5007t_config mxl5007t_hvr950q_config = {
102 .xtal_freq_hz = MxL_XTAL_24_MHZ,
103 .if_freq_hz = MxL_IF_6_MHZ,
104};
105
106static struct tda18271_config hauppauge_woodbury_tunerconfig = {
107 .gate = TDA18271_GATE_DIGITAL,
108};
109
110static void au0828_restart_dvb_streaming(struct work_struct *work);
111
112
113static void urb_completion(struct urb *purb)
114{
115 struct au0828_dev *dev = purb->context;
116 int ptype = usb_pipetype(purb->pipe);
117 unsigned char *ptr;
118
119 dprintk(2, "%s: %d\n", __func__, purb->actual_length);
120
121 if (!dev) {
122 dprintk(2, "%s: no dev!\n", __func__);
123 return;
124 }
125
126 if (!dev->urb_streaming) {
127 dprintk(2, "%s: not streaming!\n", __func__);
128 return;
129 }
130
131 if (ptype != PIPE_BULK) {
132 pr_err("%s: Unsupported URB type %d\n",
133 __func__, ptype);
134 return;
135 }
136
137
138
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);
144 return;
145 }
146
147
148 dvb_dmx_swfilter_packets(&dev->dvb.demux,
149 purb->transfer_buffer, purb->actual_length / 188);
150
151
152 memset(purb->transfer_buffer, 0, URB_BUFSIZE);
153
154
155 usb_submit_urb(purb, GFP_ATOMIC);
156}
157
158static int stop_urb_transfer(struct au0828_dev *dev)
159{
160 int i;
161
162 dprintk(2, "%s()\n", __func__);
163
164 if (!dev->urb_streaming)
165 return 0;
166
167 dev->urb_streaming = false;
168 for (i = 0; i < URB_COUNT; i++) {
169 if (dev->urbs[i]) {
170 usb_kill_urb(dev->urbs[i]);
171 if (!preallocate_big_buffers)
172 kfree(dev->urbs[i]->transfer_buffer);
173
174 usb_free_urb(dev->urbs[i]);
175 }
176 }
177
178 return 0;
179}
180
181static int start_urb_transfer(struct au0828_dev *dev)
182{
183 struct urb *purb;
184 int i, ret = -ENOMEM;
185
186 dprintk(2, "%s()\n", __func__);
187
188 if (dev->urb_streaming) {
189 dprintk(2, "%s: bulk xfer already running!\n", __func__);
190 return 0;
191 }
192
193 for (i = 0; i < URB_COUNT; i++) {
194
195 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
196 if (!dev->urbs[i])
197 goto err;
198
199 purb = dev->urbs[i];
200
201 if (preallocate_big_buffers)
202 purb->transfer_buffer = dev->dig_transfer_buffer[i];
203 else
204 purb->transfer_buffer = kzalloc(URB_BUFSIZE,
205 GFP_KERNEL);
206
207 if (!purb->transfer_buffer) {
208 usb_free_urb(purb);
209 dev->urbs[i] = NULL;
210 pr_err("%s: failed big buffer allocation, err = %d\n",
211 __func__, ret);
212 goto err;
213 }
214
215 purb->status = -EINPROGRESS;
216 usb_fill_bulk_urb(purb,
217 dev->usbdev,
218 usb_rcvbulkpipe(dev->usbdev,
219 _AU0828_BULKPIPE),
220 purb->transfer_buffer,
221 URB_BUFSIZE,
222 urb_completion,
223 dev);
224
225 }
226
227 for (i = 0; i < URB_COUNT; i++) {
228 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
229 if (ret != 0) {
230 stop_urb_transfer(dev);
231 pr_err("%s: failed urb submission, err = %d\n",
232 __func__, ret);
233 return ret;
234 }
235 }
236
237 dev->urb_streaming = true;
238 ret = 0;
239
240err:
241 return ret;
242}
243
244static void au0828_start_transport(struct au0828_dev *dev)
245{
246 au0828_write(dev, 0x608, 0x90);
247 au0828_write(dev, 0x609, 0x72);
248 au0828_write(dev, 0x60a, 0x71);
249 au0828_write(dev, 0x60b, 0x01);
250
251}
252
253static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
254{
255 if (full_stop) {
256 au0828_write(dev, 0x608, 0x00);
257 au0828_write(dev, 0x609, 0x00);
258 au0828_write(dev, 0x60a, 0x00);
259 }
260 au0828_write(dev, 0x60b, 0x00);
261}
262
263static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
264{
265 struct dvb_demux *demux = feed->demux;
266 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
267 struct au0828_dvb *dvb = &dev->dvb;
268 int ret = 0;
269
270 dprintk(1, "%s()\n", __func__);
271
272 if (!demux->dmx.frontend)
273 return -EINVAL;
274
275 if (dvb->frontend) {
276 mutex_lock(&dvb->lock);
277 dvb->start_count++;
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
282 au0828_start_transport(dev);
283 ret = start_urb_transfer(dev);
284 if (ret < 0) {
285 au0828_stop_transport(dev, 0);
286 dvb->feeding--;
287 }
288 }
289 mutex_unlock(&dvb->lock);
290 }
291
292 return ret;
293}
294
295static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
296{
297 struct dvb_demux *demux = feed->demux;
298 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
299 struct au0828_dvb *dvb = &dev->dvb;
300 int ret = 0;
301
302 dprintk(1, "%s()\n", __func__);
303
304 if (dvb->frontend) {
305 cancel_work_sync(&dev->restart_streaming);
306
307 mutex_lock(&dvb->lock);
308 dvb->stop_count++;
309 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
310 dvb->start_count, dvb->stop_count);
311 if (dvb->feeding > 0) {
312 dvb->feeding--;
313 if (dvb->feeding == 0) {
314
315 ret = stop_urb_transfer(dev);
316 au0828_stop_transport(dev, 0);
317 }
318 }
319 mutex_unlock(&dvb->lock);
320 }
321
322 return ret;
323}
324
325static void au0828_restart_dvb_streaming(struct work_struct *work)
326{
327 struct au0828_dev *dev = container_of(work, struct au0828_dev,
328 restart_streaming);
329 struct au0828_dvb *dvb = &dev->dvb;
330
331 if (!dev->urb_streaming)
332 return;
333
334 dprintk(1, "Restarting streaming...!\n");
335
336 mutex_lock(&dvb->lock);
337
338
339 stop_urb_transfer(dev);
340 au0828_stop_transport(dev, 1);
341
342
343 au0828_start_transport(dev);
344 start_urb_transfer(dev);
345
346 mutex_unlock(&dvb->lock);
347}
348
349static int au0828_set_frontend(struct dvb_frontend *fe)
350{
351 struct au0828_dev *dev = fe->dvb->priv;
352 struct au0828_dvb *dvb = &dev->dvb;
353 int ret, was_streaming;
354
355 mutex_lock(&dvb->lock);
356 was_streaming = dev->urb_streaming;
357 if (was_streaming) {
358 au0828_stop_transport(dev, 1);
359
360
361
362
363
364 mutex_unlock(&dvb->lock);
365 cancel_work_sync(&dev->restart_streaming);
366 mutex_lock(&dvb->lock);
367
368 stop_urb_transfer(dev);
369 }
370 mutex_unlock(&dvb->lock);
371
372 ret = dvb->set_frontend(fe);
373
374 if (was_streaming) {
375 mutex_lock(&dvb->lock);
376 au0828_start_transport(dev);
377 start_urb_transfer(dev);
378 mutex_unlock(&dvb->lock);
379 }
380
381 return ret;
382}
383
384static int dvb_register(struct au0828_dev *dev)
385{
386 struct au0828_dvb *dvb = &dev->dvb;
387 int result;
388
389 dprintk(1, "%s()\n", __func__);
390
391 if (preallocate_big_buffers) {
392 int i;
393 for (i = 0; i < URB_COUNT; i++) {
394 dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
395 GFP_KERNEL);
396
397 if (!dev->dig_transfer_buffer[i]) {
398 result = -ENOMEM;
399
400 pr_err("failed buffer allocation (errno = %d)\n",
401 result);
402 goto fail_adapter;
403 }
404 }
405 }
406
407 INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
408
409
410 result = dvb_register_adapter(&dvb->adapter,
411 KBUILD_MODNAME, THIS_MODULE,
412 &dev->usbdev->dev, adapter_nr);
413 if (result < 0) {
414 pr_err("dvb_register_adapter failed (errno = %d)\n",
415 result);
416 goto fail_adapter;
417 }
418 dvb->adapter.priv = dev;
419
420
421 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
422 if (result < 0) {
423 pr_err("dvb_register_frontend failed (errno = %d)\n",
424 result);
425 goto fail_frontend;
426 }
427
428
429 dvb->set_frontend = dvb->frontend->ops.set_frontend;
430 dvb->frontend->ops.set_frontend = au0828_set_frontend;
431
432
433 dvb->demux.dmx.capabilities =
434 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
435 DMX_MEMORY_BASED_FILTERING;
436 dvb->demux.priv = dev;
437 dvb->demux.filternum = 256;
438 dvb->demux.feednum = 256;
439 dvb->demux.start_feed = au0828_dvb_start_feed;
440 dvb->demux.stop_feed = au0828_dvb_stop_feed;
441 result = dvb_dmx_init(&dvb->demux);
442 if (result < 0) {
443 pr_err("dvb_dmx_init failed (errno = %d)\n", result);
444 goto fail_dmx;
445 }
446
447 dvb->dmxdev.filternum = 256;
448 dvb->dmxdev.demux = &dvb->demux.dmx;
449 dvb->dmxdev.capabilities = 0;
450 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
451 if (result < 0) {
452 pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
453 goto fail_dmxdev;
454 }
455
456 dvb->fe_hw.source = DMX_FRONTEND_0;
457 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
458 if (result < 0) {
459 pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
460 result);
461 goto fail_fe_hw;
462 }
463
464 dvb->fe_mem.source = DMX_MEMORY_FE;
465 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
466 if (result < 0) {
467 pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
468 result);
469 goto fail_fe_mem;
470 }
471
472 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
473 if (result < 0) {
474 pr_err("connect_frontend failed (errno = %d)\n", result);
475 goto fail_fe_conn;
476 }
477
478
479 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
480
481 dvb->start_count = 0;
482 dvb->stop_count = 0;
483 return 0;
484
485fail_fe_conn:
486 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
487fail_fe_mem:
488 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
489fail_fe_hw:
490 dvb_dmxdev_release(&dvb->dmxdev);
491fail_dmxdev:
492 dvb_dmx_release(&dvb->demux);
493fail_dmx:
494 dvb_unregister_frontend(dvb->frontend);
495fail_frontend:
496 dvb_frontend_detach(dvb->frontend);
497 dvb_unregister_adapter(&dvb->adapter);
498fail_adapter:
499
500 if (preallocate_big_buffers) {
501 int i;
502 for (i = 0; i < URB_COUNT; i++)
503 kfree(dev->dig_transfer_buffer[i]);
504 }
505
506 return result;
507}
508
509void au0828_dvb_unregister(struct au0828_dev *dev)
510{
511 struct au0828_dvb *dvb = &dev->dvb;
512
513 dprintk(1, "%s()\n", __func__);
514
515 if (dvb->frontend == NULL)
516 return;
517
518 cancel_work_sync(&dev->restart_streaming);
519
520 dvb_net_release(&dvb->net);
521 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
522 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
523 dvb_dmxdev_release(&dvb->dmxdev);
524 dvb_dmx_release(&dvb->demux);
525 dvb_unregister_frontend(dvb->frontend);
526 dvb_frontend_detach(dvb->frontend);
527 dvb_unregister_adapter(&dvb->adapter);
528
529 if (preallocate_big_buffers) {
530 int i;
531 for (i = 0; i < URB_COUNT; i++)
532 kfree(dev->dig_transfer_buffer[i]);
533 }
534 dvb->frontend = NULL;
535}
536
537
538
539
540
541int au0828_dvb_register(struct au0828_dev *dev)
542{
543 struct au0828_dvb *dvb = &dev->dvb;
544 int ret;
545
546 dprintk(1, "%s()\n", __func__);
547
548
549 switch (dev->boardnr) {
550 case AU0828_BOARD_HAUPPAUGE_HVR850:
551 case AU0828_BOARD_HAUPPAUGE_HVR950Q:
552 dvb->frontend = dvb_attach(au8522_attach,
553 &hauppauge_hvr950q_config,
554 &dev->i2c_adap);
555 if (dvb->frontend != NULL)
556 switch (dev->board.tuner_type) {
557 default:
558 case TUNER_XC5000:
559 dvb_attach(xc5000_attach, dvb->frontend,
560 &dev->i2c_adap,
561 &hauppauge_xc5000a_config);
562 break;
563 case TUNER_XC5000C:
564 dvb_attach(xc5000_attach, dvb->frontend,
565 &dev->i2c_adap,
566 &hauppauge_xc5000c_config);
567 break;
568 }
569 break;
570 case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
571 dvb->frontend = dvb_attach(au8522_attach,
572 &hauppauge_hvr950q_config,
573 &dev->i2c_adap);
574 if (dvb->frontend != NULL)
575 dvb_attach(mxl5007t_attach, dvb->frontend,
576 &dev->i2c_adap, 0x60,
577 &mxl5007t_hvr950q_config);
578 break;
579 case AU0828_BOARD_HAUPPAUGE_WOODBURY:
580 dvb->frontend = dvb_attach(au8522_attach,
581 &hauppauge_woodbury_config,
582 &dev->i2c_adap);
583 if (dvb->frontend != NULL)
584 dvb_attach(tda18271_attach, dvb->frontend,
585 0x60, &dev->i2c_adap,
586 &hauppauge_woodbury_tunerconfig);
587 break;
588 case AU0828_BOARD_DVICO_FUSIONHDTV7:
589 dvb->frontend = dvb_attach(au8522_attach,
590 &fusionhdtv7usb_config,
591 &dev->i2c_adap);
592 if (dvb->frontend != NULL) {
593 dvb_attach(xc5000_attach, dvb->frontend,
594 &dev->i2c_adap,
595 &hauppauge_xc5000a_config);
596 }
597 break;
598 default:
599 pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
600 break;
601 }
602 if (NULL == dvb->frontend) {
603 pr_err("%s() Frontend initialization failed\n",
604 __func__);
605 return -1;
606 }
607
608 dvb->frontend->callback = au0828_tuner_callback;
609
610
611 ret = dvb_register(dev);
612 if (ret < 0) {
613 if (dvb->frontend->ops.release)
614 dvb->frontend->ops.release(dvb->frontend);
615 dvb->frontend = NULL;
616 return ret;
617 }
618
619 return 0;
620}
621
622void au0828_dvb_suspend(struct au0828_dev *dev)
623{
624 struct au0828_dvb *dvb = &dev->dvb;
625 int rc;
626
627 if (dvb->frontend) {
628 if (dev->urb_streaming) {
629 cancel_work_sync(&dev->restart_streaming);
630
631 mutex_lock(&dvb->lock);
632 stop_urb_transfer(dev);
633 au0828_stop_transport(dev, 1);
634 mutex_unlock(&dvb->lock);
635 dev->need_urb_start = true;
636 }
637
638 rc = dvb_frontend_suspend(dvb->frontend);
639 pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
640 }
641}
642
643void au0828_dvb_resume(struct au0828_dev *dev)
644{
645 struct au0828_dvb *dvb = &dev->dvb;
646 int rc;
647
648 if (dvb->frontend) {
649
650 rc = dvb_frontend_resume(dvb->frontend);
651 pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
652 if (dev->need_urb_start) {
653
654 mutex_lock(&dvb->lock);
655 au0828_start_transport(dev);
656 start_urb_transfer(dev);
657 mutex_unlock(&dvb->lock);
658 }
659 }
660}
661
