1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * budget-core.ko: base-driver for the SAA7146 based Budget DVB cards
4 *
5 * Compiled from various sources by Michael Hunold <michael@mihu.de>
6 *
7 * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
8 *
9 * Copyright (C) 1999-2002 Ralph Metzler
10 * & Marcus Metzler for convergence integrated media GmbH
11 *
12 * 26feb2004 Support for FS Activy Card (Grundig tuner) by
13 * Michael Dreher <michael@5dot1.de>,
14 * Oliver Endriss <o.endriss@gmx.de>,
15 * Andreas 'randy' Weinberger
16 *
17 * the project's page is at https://linuxtv.org
18 */
19
20
21 #include "budget.h"
22 #include "ttpci-eeprom.h"
23
24 #define TS_WIDTH (2 * TS_SIZE)
25 #define TS_WIDTH_ACTIVY TS_SIZE
26 #define TS_WIDTH_DVBC TS_SIZE
27 #define TS_HEIGHT_MASK 0xf00
28 #define TS_HEIGHT_MASK_ACTIVY 0xc00
29 #define TS_HEIGHT_MASK_DVBC 0xe00
30 #define TS_MIN_BUFSIZE_K 188
31 #define TS_MAX_BUFSIZE_K 1410
32 #define TS_MAX_BUFSIZE_K_ACTIVY 564
33 #define TS_MAX_BUFSIZE_K_DVBC 1316
34 #define BUFFER_WARNING_WAIT (30*HZ)
35
36 int budget_debug;
37 EXPORT_SYMBOL_GPL(budget_debug);
38 static int dma_buffer_size = TS_MIN_BUFSIZE_K;
39 module_param_named(debug, budget_debug, int, 0644);
40 module_param_named(bufsize, dma_buffer_size, int, 0444);
41 MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
42 MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
43
44 /****************************************************************************
45 * TT budget / WinTV Nova
46 ****************************************************************************/
47
stop_ts_capture(struct budget * budget)48 static int stop_ts_capture(struct budget *budget)
49 {
50 dprintk(2, "budget: %p\n", budget);
51
52 saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off
53 SAA7146_IER_DISABLE(budget->dev, MASK_10);
54 return 0;
55 }
56
start_ts_capture(struct budget * budget)57 static int start_ts_capture(struct budget *budget)
58 {
59 struct saa7146_dev *dev = budget->dev;
60
61 dprintk(2, "budget: %p\n", budget);
62
63 if (!budget->feeding || !budget->fe_synced)
64 return 0;
65
66 saa7146_write(dev, MC1, MASK_20); // DMA3 off
67
68 memset(budget->grabbing, 0x00, budget->buffer_size);
69
70 saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
71
72 budget->ttbp = 0;
73
74 /*
75 * Signal path on the Activy:
76 *
77 * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
78 *
79 * Since the tuner feeds 204 bytes packets into the SAA7146,
80 * DMA3 is configured to strip the trailing 16 FEC bytes:
81 * Pitch: 188, NumBytes3: 188, NumLines3: 1024
82 */
83
84 switch (budget->card->type) {
85 case BUDGET_FS_ACTIVY:
86 saa7146_write(dev, DD1_INIT, 0x04000000);
87 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
88 saa7146_write(dev, BRS_CTRL, 0x00000000);
89 break;
90 case BUDGET_PATCH:
91 saa7146_write(dev, DD1_INIT, 0x00000200);
92 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
93 saa7146_write(dev, BRS_CTRL, 0x60000000);
94 break;
95 case BUDGET_CIN1200C_MK3:
96 case BUDGET_KNC1C_MK3:
97 case BUDGET_KNC1C_TDA10024:
98 case BUDGET_KNC1CP_MK3:
99 if (budget->video_port == BUDGET_VIDEO_PORTA) {
100 saa7146_write(dev, DD1_INIT, 0x06000200);
101 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
102 saa7146_write(dev, BRS_CTRL, 0x00000000);
103 } else {
104 saa7146_write(dev, DD1_INIT, 0x00000600);
105 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
106 saa7146_write(dev, BRS_CTRL, 0x60000000);
107 }
108 break;
109 default:
110 if (budget->video_port == BUDGET_VIDEO_PORTA) {
111 saa7146_write(dev, DD1_INIT, 0x06000200);
112 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
113 saa7146_write(dev, BRS_CTRL, 0x00000000);
114 } else {
115 saa7146_write(dev, DD1_INIT, 0x02000600);
116 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
117 saa7146_write(dev, BRS_CTRL, 0x60000000);
118 }
119 }
120
121 saa7146_write(dev, MC2, (MASK_08 | MASK_24));
122 mdelay(10);
123
124 saa7146_write(dev, BASE_ODD3, 0);
125 if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
126 // using odd/even buffers
127 saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
128 } else {
129 // using a single buffer
130 saa7146_write(dev, BASE_EVEN3, 0);
131 }
132 saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
133 saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
134
135 saa7146_write(dev, PITCH3, budget->buffer_width);
136 saa7146_write(dev, NUM_LINE_BYTE3,
137 (budget->buffer_height << 16) | budget->buffer_width);
138
139 saa7146_write(dev, MC2, (MASK_04 | MASK_20));
140
141 SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */
142 SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */
143 saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */
144
145 return 0;
146 }
147
budget_read_fe_status(struct dvb_frontend * fe,enum fe_status * status)148 static int budget_read_fe_status(struct dvb_frontend *fe,
149 enum fe_status *status)
150 {
151 struct budget *budget = fe->dvb->priv;
152 int synced;
153 int ret;
154
155 if (budget->read_fe_status)
156 ret = budget->read_fe_status(fe, status);
157 else
158 ret = -EINVAL;
159
160 if (!ret) {
161 synced = (*status & FE_HAS_LOCK);
162 if (synced != budget->fe_synced) {
163 budget->fe_synced = synced;
164 spin_lock(&budget->feedlock);
165 if (synced)
166 start_ts_capture(budget);
167 else
168 stop_ts_capture(budget);
169 spin_unlock(&budget->feedlock);
170 }
171 }
172 return ret;
173 }
174
vpeirq(struct work_struct * t)175 static void vpeirq(struct work_struct *t)
176 {
177 struct budget *budget = from_work(budget, t, vpe_bh_work);
178 u8 *mem = (u8 *) (budget->grabbing);
179 u32 olddma = budget->ttbp;
180 u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
181 u32 count;
182
183 /* Ensure streamed PCI data is synced to CPU */
184 dma_sync_sg_for_cpu(&budget->dev->pci->dev, budget->pt.slist,
185 budget->pt.nents, DMA_FROM_DEVICE);
186
187 /* nearest lower position divisible by 188 */
188 newdma -= newdma % 188;
189
190 if (newdma >= budget->buffer_size)
191 return;
192
193 budget->ttbp = newdma;
194
195 if (budget->feeding == 0 || newdma == olddma)
196 return;
197
198 if (newdma > olddma) { /* no wraparound, dump olddma..newdma */
199 count = newdma - olddma;
200 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
201 } else { /* wraparound, dump olddma..buflen and 0..newdma */
202 count = budget->buffer_size - olddma;
203 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
204 count += newdma;
205 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
206 }
207
208 if (count > budget->buffer_warning_threshold)
209 budget->buffer_warnings++;
210
211 if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
212 pr_warn("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
213 budget->dev->name, __func__, budget->buffer_warnings, count);
214 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
215 budget->buffer_warnings = 0;
216 }
217 }
218
219
ttpci_budget_debiread_nolock(struct budget * budget,u32 config,int addr,int count,int nobusyloop)220 static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
221 int addr, int count, int nobusyloop)
222 {
223 struct saa7146_dev *saa = budget->dev;
224 int result;
225
226 result = saa7146_wait_for_debi_done(saa, nobusyloop);
227 if (result < 0)
228 return result;
229
230 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
231 saa7146_write(saa, DEBI_CONFIG, config);
232 saa7146_write(saa, DEBI_PAGE, 0);
233 saa7146_write(saa, MC2, (2 << 16) | 2);
234
235 result = saa7146_wait_for_debi_done(saa, nobusyloop);
236 if (result < 0)
237 return result;
238
239 result = saa7146_read(saa, DEBI_AD);
240 result &= (0xffffffffUL >> ((4 - count) * 8));
241 return result;
242 }
243
ttpci_budget_debiread(struct budget * budget,u32 config,int addr,int count,int uselocks,int nobusyloop)244 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
245 int uselocks, int nobusyloop)
246 {
247 if (count > 4 || count <= 0)
248 return 0;
249
250 if (uselocks) {
251 unsigned long flags;
252 int result;
253
254 spin_lock_irqsave(&budget->debilock, flags);
255 result = ttpci_budget_debiread_nolock(budget, config, addr,
256 count, nobusyloop);
257 spin_unlock_irqrestore(&budget->debilock, flags);
258 return result;
259 }
260 return ttpci_budget_debiread_nolock(budget, config, addr,
261 count, nobusyloop);
262 }
263 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
264
ttpci_budget_debiwrite_nolock(struct budget * budget,u32 config,int addr,int count,u32 value,int nobusyloop)265 static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
266 int addr, int count, u32 value, int nobusyloop)
267 {
268 struct saa7146_dev *saa = budget->dev;
269 int result;
270
271 result = saa7146_wait_for_debi_done(saa, nobusyloop);
272 if (result < 0)
273 return result;
274
275 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
276 saa7146_write(saa, DEBI_CONFIG, config);
277 saa7146_write(saa, DEBI_PAGE, 0);
278 saa7146_write(saa, DEBI_AD, value);
279 saa7146_write(saa, MC2, (2 << 16) | 2);
280
281 result = saa7146_wait_for_debi_done(saa, nobusyloop);
282 return result < 0 ? result : 0;
283 }
284
ttpci_budget_debiwrite(struct budget * budget,u32 config,int addr,int count,u32 value,int uselocks,int nobusyloop)285 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
286 int count, u32 value, int uselocks, int nobusyloop)
287 {
288 if (count > 4 || count <= 0)
289 return 0;
290
291 if (uselocks) {
292 unsigned long flags;
293 int result;
294
295 spin_lock_irqsave(&budget->debilock, flags);
296 result = ttpci_budget_debiwrite_nolock(budget, config, addr,
297 count, value, nobusyloop);
298 spin_unlock_irqrestore(&budget->debilock, flags);
299 return result;
300 }
301 return ttpci_budget_debiwrite_nolock(budget, config, addr,
302 count, value, nobusyloop);
303 }
304 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
305
306
307 /****************************************************************************
308 * DVB API SECTION
309 ****************************************************************************/
310
budget_start_feed(struct dvb_demux_feed * feed)311 static int budget_start_feed(struct dvb_demux_feed *feed)
312 {
313 struct dvb_demux *demux = feed->demux;
314 struct budget *budget = demux->priv;
315 int status = 0;
316
317 dprintk(2, "budget: %p\n", budget);
318
319 if (!demux->dmx.frontend)
320 return -EINVAL;
321
322 spin_lock(&budget->feedlock);
323 feed->pusi_seen = false; /* have a clean section start */
324 if (budget->feeding++ == 0)
325 status = start_ts_capture(budget);
326 spin_unlock(&budget->feedlock);
327 return status;
328 }
329
budget_stop_feed(struct dvb_demux_feed * feed)330 static int budget_stop_feed(struct dvb_demux_feed *feed)
331 {
332 struct dvb_demux *demux = feed->demux;
333 struct budget *budget = demux->priv;
334 int status = 0;
335
336 dprintk(2, "budget: %p\n", budget);
337
338 spin_lock(&budget->feedlock);
339 if (--budget->feeding == 0)
340 status = stop_ts_capture(budget);
341 spin_unlock(&budget->feedlock);
342 return status;
343 }
344
budget_register(struct budget * budget)345 static int budget_register(struct budget *budget)
346 {
347 struct dvb_demux *dvbdemux = &budget->demux;
348 int ret;
349
350 dprintk(2, "budget: %p\n", budget);
351
352 dvbdemux->priv = (void *) budget;
353
354 dvbdemux->filternum = 256;
355 dvbdemux->feednum = 256;
356 dvbdemux->start_feed = budget_start_feed;
357 dvbdemux->stop_feed = budget_stop_feed;
358 dvbdemux->write_to_decoder = NULL;
359
360 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
361 DMX_MEMORY_BASED_FILTERING);
362
363 dvb_dmx_init(&budget->demux);
364
365 budget->dmxdev.filternum = 256;
366 budget->dmxdev.demux = &dvbdemux->dmx;
367 budget->dmxdev.capabilities = 0;
368
369 dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
370
371 budget->hw_frontend.source = DMX_FRONTEND_0;
372
373 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
374
375 if (ret < 0)
376 goto err_release_dmx;
377
378 budget->mem_frontend.source = DMX_MEMORY_FE;
379 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
380 if (ret < 0)
381 goto err_release_dmx;
382
383 ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
384 if (ret < 0)
385 goto err_release_dmx;
386
387 dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
388
389 return 0;
390
391 err_release_dmx:
392 dvb_dmxdev_release(&budget->dmxdev);
393 dvb_dmx_release(&budget->demux);
394 return ret;
395 }
396
budget_unregister(struct budget * budget)397 static void budget_unregister(struct budget *budget)
398 {
399 struct dvb_demux *dvbdemux = &budget->demux;
400
401 dprintk(2, "budget: %p\n", budget);
402
403 dvb_net_release(&budget->dvb_net);
404
405 dvbdemux->dmx.close(&dvbdemux->dmx);
406 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
407 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
408
409 dvb_dmxdev_release(&budget->dmxdev);
410 dvb_dmx_release(&budget->demux);
411 }
412
ttpci_budget_init(struct budget * budget,struct saa7146_dev * dev,struct saa7146_pci_extension_data * info,struct module * owner,short * adapter_nums)413 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
414 struct saa7146_pci_extension_data *info,
415 struct module *owner, short *adapter_nums)
416 {
417 int ret = 0;
418 struct budget_info *bi = info->ext_priv;
419 int max_bufsize;
420 int height_mask;
421
422 memset(budget, 0, sizeof(struct budget));
423
424 dprintk(2, "dev: %p, budget: %p\n", dev, budget);
425
426 budget->card = bi;
427 budget->dev = (struct saa7146_dev *) dev;
428
429 switch (budget->card->type) {
430 case BUDGET_FS_ACTIVY:
431 budget->buffer_width = TS_WIDTH_ACTIVY;
432 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
433 height_mask = TS_HEIGHT_MASK_ACTIVY;
434 break;
435
436 case BUDGET_KNC1C:
437 case BUDGET_KNC1CP:
438 case BUDGET_CIN1200C:
439 case BUDGET_KNC1C_MK3:
440 case BUDGET_KNC1C_TDA10024:
441 case BUDGET_KNC1CP_MK3:
442 case BUDGET_CIN1200C_MK3:
443 budget->buffer_width = TS_WIDTH_DVBC;
444 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
445 height_mask = TS_HEIGHT_MASK_DVBC;
446 break;
447
448 default:
449 budget->buffer_width = TS_WIDTH;
450 max_bufsize = TS_MAX_BUFSIZE_K;
451 height_mask = TS_HEIGHT_MASK;
452 }
453
454 if (dma_buffer_size < TS_MIN_BUFSIZE_K)
455 dma_buffer_size = TS_MIN_BUFSIZE_K;
456 else if (dma_buffer_size > max_bufsize)
457 dma_buffer_size = max_bufsize;
458
459 budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
460 if (budget->buffer_height > 0xfff) {
461 budget->buffer_height /= 2;
462 budget->buffer_height &= height_mask;
463 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
464 } else {
465 budget->buffer_height &= height_mask;
466 budget->buffer_size = budget->buffer_height * budget->buffer_width;
467 }
468 budget->buffer_warning_threshold = budget->buffer_size * 80/100;
469 budget->buffer_warnings = 0;
470 budget->buffer_warning_time = jiffies;
471
472 dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
473 budget->dev->name,
474 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
475 budget->buffer_width, budget->buffer_height);
476 pr_info("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
477
478 ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
479 owner, &budget->dev->pci->dev, adapter_nums);
480 if (ret < 0)
481 return ret;
482
483 /* set dd1 stream a & b */
484 saa7146_write(dev, DD1_STREAM_B, 0x00000000);
485 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
486 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
487 saa7146_write(dev, DD1_INIT, 0x02000000);
488 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
489
490 if (bi->type != BUDGET_FS_ACTIVY)
491 budget->video_port = BUDGET_VIDEO_PORTB;
492 else
493 budget->video_port = BUDGET_VIDEO_PORTA;
494 spin_lock_init(&budget->feedlock);
495 spin_lock_init(&budget->debilock);
496
497 /*
498 * the Siemens DVB needs this if you want to have the i2c chips
499 * get recognized before the main driver is loaded
500 */
501 if (bi->type != BUDGET_FS_ACTIVY)
502 saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */
503
504 strscpy(budget->i2c_adap.name, budget->card->name,
505 sizeof(budget->i2c_adap.name));
506
507 saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
508 strscpy(budget->i2c_adap.name, budget->card->name,
509 sizeof(budget->i2c_adap.name));
510
511 if (i2c_add_adapter(&budget->i2c_adap) < 0) {
512 ret = -ENOMEM;
513 goto err_dvb_unregister;
514 }
515
516 ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
517
518 budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
519 if (budget->grabbing == NULL) {
520 ret = -ENOMEM;
521 goto err_del_i2c;
522 }
523
524 saa7146_write(dev, PCI_BT_V1, 0x001c0000);
525 /* upload all */
526 saa7146_write(dev, GPIO_CTRL, 0x000000);
527
528 INIT_WORK(&budget->vpe_bh_work, vpeirq);
529
530 /* frontend power on */
531 if (bi->type != BUDGET_FS_ACTIVY)
532 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
533
534 ret = budget_register(budget);
535 if (ret == 0)
536 return 0; /* Everything OK */
537
538 /* An error occurred, cleanup resources */
539 saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
540
541 err_del_i2c:
542 i2c_del_adapter(&budget->i2c_adap);
543
544 err_dvb_unregister:
545 dvb_unregister_adapter(&budget->dvb_adapter);
546
547 return ret;
548 }
549 EXPORT_SYMBOL_GPL(ttpci_budget_init);
550
ttpci_budget_init_hooks(struct budget * budget)551 void ttpci_budget_init_hooks(struct budget *budget)
552 {
553 if (budget->dvb_frontend && !budget->read_fe_status) {
554 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
555 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
556 }
557 }
558 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
559
ttpci_budget_deinit(struct budget * budget)560 int ttpci_budget_deinit(struct budget *budget)
561 {
562 struct saa7146_dev *dev = budget->dev;
563
564 dprintk(2, "budget: %p\n", budget);
565
566 budget_unregister(budget);
567
568 cancel_work_sync(&budget->vpe_bh_work);
569
570 saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
571
572 i2c_del_adapter(&budget->i2c_adap);
573
574 dvb_unregister_adapter(&budget->dvb_adapter);
575
576 return 0;
577 }
578 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
579
ttpci_budget_irq10_handler(struct saa7146_dev * dev,u32 * isr)580 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 *isr)
581 {
582 struct budget *budget = dev->ext_priv;
583
584 dprintk(8, "dev: %p, budget: %p\n", dev, budget);
585
586 if (*isr & MASK_10)
587 queue_work(system_bh_wq, &budget->vpe_bh_work);
588 }
589 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
590
ttpci_budget_set_video_port(struct saa7146_dev * dev,int video_port)591 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
592 {
593 struct budget *budget = dev->ext_priv;
594
595 spin_lock(&budget->feedlock);
596 budget->video_port = video_port;
597 if (budget->feeding) {
598 stop_ts_capture(budget);
599 start_ts_capture(budget);
600 }
601 spin_unlock(&budget->feedlock);
602 }
603 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
604
605 MODULE_DESCRIPTION("base driver for the SAA7146 based Budget DVB cards");
606 MODULE_LICENSE("GPL");
607