1 /*
2  * budget-core.c: driver for the SAA7146 based Budget DVB cards
3  *
4  * Compiled from various sources by Michael Hunold <michael@mihu.de>
5  *
6  * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
7  *
8  * Copyright (C) 1999-2002 Ralph  Metzler
9  *			 & Marcus Metzler for convergence integrated media GmbH
10  *
11  * 26feb2004 Support for FS Activy Card (Grundig tuner) by
12  *	     Michael Dreher <michael@5dot1.de>,
13  *	     Oliver Endriss <o.endriss@gmx.de>,
14  *	     Andreas 'randy' Weinberger
15  *
16  * This program is free software; you can redistribute it and/or
17  * modify it under the terms of the GNU General Public License
18  * as published by the Free Software Foundation; either version 2
19  * of the License, or (at your option) any later version.
20  *
21  *
22  * This program is distributed in the hope that it will be useful,
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
25  * GNU General Public License for more details.
26  *
27  *
28  * You should have received a copy of the GNU General Public License
29  * along with this program; if not, write to the Free Software
30  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
32  *
33  *
34  * the project's page is at http://www.linuxtv.org/
35  */
36 
37 
38 #include "budget.h"
39 #include "ttpci-eeprom.h"
40 
41 #define TS_WIDTH		(2 * TS_SIZE)
42 #define TS_WIDTH_ACTIVY		TS_SIZE
43 #define TS_WIDTH_DVBC		TS_SIZE
44 #define TS_HEIGHT_MASK		0xf00
45 #define TS_HEIGHT_MASK_ACTIVY	0xc00
46 #define TS_HEIGHT_MASK_DVBC	0xe00
47 #define TS_MIN_BUFSIZE_K	188
48 #define TS_MAX_BUFSIZE_K	1410
49 #define TS_MAX_BUFSIZE_K_ACTIVY	564
50 #define TS_MAX_BUFSIZE_K_DVBC	1316
51 #define BUFFER_WARNING_WAIT	(30*HZ)
52 
53 int budget_debug;
54 static int dma_buffer_size = TS_MIN_BUFSIZE_K;
55 module_param_named(debug, budget_debug, int, 0644);
56 module_param_named(bufsize, dma_buffer_size, int, 0444);
57 MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
58 MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
59 
60 /****************************************************************************
61  * TT budget / WinTV Nova
62  ****************************************************************************/
63 
64 static int stop_ts_capture(struct budget *budget)
65 {
66 	dprintk(2, "budget: %p\n", budget);
67 
68 	saa7146_write(budget->dev, MC1, MASK_20);	// DMA3 off
69 	SAA7146_IER_DISABLE(budget->dev, MASK_10);
70 	return 0;
71 }
72 
73 static int start_ts_capture(struct budget *budget)
74 {
75 	struct saa7146_dev *dev = budget->dev;
76 
77 	dprintk(2, "budget: %p\n", budget);
78 
79 	if (!budget->feeding || !budget->fe_synced)
80 		return 0;
81 
82 	saa7146_write(dev, MC1, MASK_20);	// DMA3 off
83 
84 	memset(budget->grabbing, 0x00, budget->buffer_size);
85 
86 	saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
87 
88 	budget->ttbp = 0;
89 
90 	/*
91 	 *  Signal path on the Activy:
92 	 *
93 	 *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
94 	 *
95 	 *  Since the tuner feeds 204 bytes packets into the SAA7146,
96 	 *  DMA3 is configured to strip the trailing 16 FEC bytes:
97 	 *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
98 	 */
99 
100 	switch(budget->card->type) {
101 	case BUDGET_FS_ACTIVY:
102 		saa7146_write(dev, DD1_INIT, 0x04000000);
103 		saa7146_write(dev, MC2, (MASK_09 | MASK_25));
104 		saa7146_write(dev, BRS_CTRL, 0x00000000);
105 		break;
106 	case BUDGET_PATCH:
107 		saa7146_write(dev, DD1_INIT, 0x00000200);
108 		saa7146_write(dev, MC2, (MASK_10 | MASK_26));
109 		saa7146_write(dev, BRS_CTRL, 0x60000000);
110 		break;
111 	case BUDGET_CIN1200C_MK3:
112 	case BUDGET_KNC1C_MK3:
113 	case BUDGET_KNC1C_TDA10024:
114 	case BUDGET_KNC1CP_MK3:
115 		if (budget->video_port == BUDGET_VIDEO_PORTA) {
116 			saa7146_write(dev, DD1_INIT, 0x06000200);
117 			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
118 			saa7146_write(dev, BRS_CTRL, 0x00000000);
119 		} else {
120 			saa7146_write(dev, DD1_INIT, 0x00000600);
121 			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
122 			saa7146_write(dev, BRS_CTRL, 0x60000000);
123 		}
124 		break;
125 	default:
126 		if (budget->video_port == BUDGET_VIDEO_PORTA) {
127 			saa7146_write(dev, DD1_INIT, 0x06000200);
128 			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
129 			saa7146_write(dev, BRS_CTRL, 0x00000000);
130 		} else {
131 			saa7146_write(dev, DD1_INIT, 0x02000600);
132 			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
133 			saa7146_write(dev, BRS_CTRL, 0x60000000);
134 		}
135 	}
136 
137 	saa7146_write(dev, MC2, (MASK_08 | MASK_24));
138 	mdelay(10);
139 
140 	saa7146_write(dev, BASE_ODD3, 0);
141 	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
142 		// using odd/even buffers
143 		saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
144 	} else {
145 		// using a single buffer
146 		saa7146_write(dev, BASE_EVEN3, 0);
147 	}
148 	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
149 	saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
150 
151 	saa7146_write(dev, PITCH3, budget->buffer_width);
152 	saa7146_write(dev, NUM_LINE_BYTE3,
153 			(budget->buffer_height << 16) | budget->buffer_width);
154 
155 	saa7146_write(dev, MC2, (MASK_04 | MASK_20));
156 
157 	SAA7146_ISR_CLEAR(budget->dev, MASK_10);	/* VPE */
158 	SAA7146_IER_ENABLE(budget->dev, MASK_10);	/* VPE */
159 	saa7146_write(dev, MC1, (MASK_04 | MASK_20));	/* DMA3 on */
160 
161 	return 0;
162 }
163 
164 static int budget_read_fe_status(struct dvb_frontend *fe,
165 				 enum fe_status *status)
166 {
167 	struct budget *budget = (struct budget *) fe->dvb->priv;
168 	int synced;
169 	int ret;
170 
171 	if (budget->read_fe_status)
172 		ret = budget->read_fe_status(fe, status);
173 	else
174 		ret = -EINVAL;
175 
176 	if (!ret) {
177 		synced = (*status & FE_HAS_LOCK);
178 		if (synced != budget->fe_synced) {
179 			budget->fe_synced = synced;
180 			spin_lock(&budget->feedlock);
181 			if (synced)
182 				start_ts_capture(budget);
183 			else
184 				stop_ts_capture(budget);
185 			spin_unlock(&budget->feedlock);
186 		}
187 	}
188 	return ret;
189 }
190 
191 static void vpeirq(unsigned long data)
192 {
193 	struct budget *budget = (struct budget *) data;
194 	u8 *mem = (u8 *) (budget->grabbing);
195 	u32 olddma = budget->ttbp;
196 	u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
197 	u32 count;
198 
199 	/* Ensure streamed PCI data is synced to CPU */
200 	pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
201 
202 	/* nearest lower position divisible by 188 */
203 	newdma -= newdma % 188;
204 
205 	if (newdma >= budget->buffer_size)
206 		return;
207 
208 	budget->ttbp = newdma;
209 
210 	if (budget->feeding == 0 || newdma == olddma)
211 		return;
212 
213 	if (newdma > olddma) {	/* no wraparound, dump olddma..newdma */
214 		count = newdma - olddma;
215 		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
216 	} else {		/* wraparound, dump olddma..buflen and 0..newdma */
217 		count = budget->buffer_size - olddma;
218 		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
219 		count += newdma;
220 		dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
221 	}
222 
223 	if (count > budget->buffer_warning_threshold)
224 		budget->buffer_warnings++;
225 
226 	if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
227 		printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
228 			budget->dev->name, __func__, budget->buffer_warnings, count);
229 		budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
230 		budget->buffer_warnings = 0;
231 	}
232 }
233 
234 
235 static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
236 		int addr, int count, int nobusyloop)
237 {
238 	struct saa7146_dev *saa = budget->dev;
239 	int result;
240 
241 	result = saa7146_wait_for_debi_done(saa, nobusyloop);
242 	if (result < 0)
243 		return result;
244 
245 	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
246 	saa7146_write(saa, DEBI_CONFIG, config);
247 	saa7146_write(saa, DEBI_PAGE, 0);
248 	saa7146_write(saa, MC2, (2 << 16) | 2);
249 
250 	result = saa7146_wait_for_debi_done(saa, nobusyloop);
251 	if (result < 0)
252 		return result;
253 
254 	result = saa7146_read(saa, DEBI_AD);
255 	result &= (0xffffffffUL >> ((4 - count) * 8));
256 	return result;
257 }
258 
259 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
260 			  int uselocks, int nobusyloop)
261 {
262 	if (count > 4 || count <= 0)
263 		return 0;
264 
265 	if (uselocks) {
266 		unsigned long flags;
267 		int result;
268 
269 		spin_lock_irqsave(&budget->debilock, flags);
270 		result = ttpci_budget_debiread_nolock(budget, config, addr,
271 						      count, nobusyloop);
272 		spin_unlock_irqrestore(&budget->debilock, flags);
273 		return result;
274 	}
275 	return ttpci_budget_debiread_nolock(budget, config, addr,
276 					    count, nobusyloop);
277 }
278 
279 static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
280 		int addr, int count, u32 value, int nobusyloop)
281 {
282 	struct saa7146_dev *saa = budget->dev;
283 	int result;
284 
285 	result = saa7146_wait_for_debi_done(saa, nobusyloop);
286 	if (result < 0)
287 		return result;
288 
289 	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
290 	saa7146_write(saa, DEBI_CONFIG, config);
291 	saa7146_write(saa, DEBI_PAGE, 0);
292 	saa7146_write(saa, DEBI_AD, value);
293 	saa7146_write(saa, MC2, (2 << 16) | 2);
294 
295 	result = saa7146_wait_for_debi_done(saa, nobusyloop);
296 	return result < 0 ? result : 0;
297 }
298 
299 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
300 			   int count, u32 value, int uselocks, int nobusyloop)
301 {
302 	if (count > 4 || count <= 0)
303 		return 0;
304 
305 	if (uselocks) {
306 		unsigned long flags;
307 		int result;
308 
309 		spin_lock_irqsave(&budget->debilock, flags);
310 		result = ttpci_budget_debiwrite_nolock(budget, config, addr,
311 						count, value, nobusyloop);
312 		spin_unlock_irqrestore(&budget->debilock, flags);
313 		return result;
314 	}
315 	return ttpci_budget_debiwrite_nolock(budget, config, addr,
316 					     count, value, nobusyloop);
317 }
318 
319 
320 /****************************************************************************
321  * DVB API SECTION
322  ****************************************************************************/
323 
324 static int budget_start_feed(struct dvb_demux_feed *feed)
325 {
326 	struct dvb_demux *demux = feed->demux;
327 	struct budget *budget = (struct budget *) demux->priv;
328 	int status = 0;
329 
330 	dprintk(2, "budget: %p\n", budget);
331 
332 	if (!demux->dmx.frontend)
333 		return -EINVAL;
334 
335 	spin_lock(&budget->feedlock);
336 	feed->pusi_seen = 0; /* have a clean section start */
337 	if (budget->feeding++ == 0)
338 		status = start_ts_capture(budget);
339 	spin_unlock(&budget->feedlock);
340 	return status;
341 }
342 
343 static int budget_stop_feed(struct dvb_demux_feed *feed)
344 {
345 	struct dvb_demux *demux = feed->demux;
346 	struct budget *budget = (struct budget *) demux->priv;
347 	int status = 0;
348 
349 	dprintk(2, "budget: %p\n", budget);
350 
351 	spin_lock(&budget->feedlock);
352 	if (--budget->feeding == 0)
353 		status = stop_ts_capture(budget);
354 	spin_unlock(&budget->feedlock);
355 	return status;
356 }
357 
358 static int budget_register(struct budget *budget)
359 {
360 	struct dvb_demux *dvbdemux = &budget->demux;
361 	int ret;
362 
363 	dprintk(2, "budget: %p\n", budget);
364 
365 	dvbdemux->priv = (void *) budget;
366 
367 	dvbdemux->filternum = 256;
368 	dvbdemux->feednum = 256;
369 	dvbdemux->start_feed = budget_start_feed;
370 	dvbdemux->stop_feed = budget_stop_feed;
371 	dvbdemux->write_to_decoder = NULL;
372 
373 	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
374 				      DMX_MEMORY_BASED_FILTERING);
375 
376 	dvb_dmx_init(&budget->demux);
377 
378 	budget->dmxdev.filternum = 256;
379 	budget->dmxdev.demux = &dvbdemux->dmx;
380 	budget->dmxdev.capabilities = 0;
381 
382 	dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
383 
384 	budget->hw_frontend.source = DMX_FRONTEND_0;
385 
386 	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
387 
388 	if (ret < 0)
389 		return ret;
390 
391 	budget->mem_frontend.source = DMX_MEMORY_FE;
392 	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
393 	if (ret < 0)
394 		return ret;
395 
396 	ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
397 	if (ret < 0)
398 		return ret;
399 
400 	dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
401 
402 	return 0;
403 }
404 
405 static void budget_unregister(struct budget *budget)
406 {
407 	struct dvb_demux *dvbdemux = &budget->demux;
408 
409 	dprintk(2, "budget: %p\n", budget);
410 
411 	dvb_net_release(&budget->dvb_net);
412 
413 	dvbdemux->dmx.close(&dvbdemux->dmx);
414 	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
415 	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
416 
417 	dvb_dmxdev_release(&budget->dmxdev);
418 	dvb_dmx_release(&budget->demux);
419 }
420 
421 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
422 		      struct saa7146_pci_extension_data *info,
423 		      struct module *owner, short *adapter_nums)
424 {
425 	int ret = 0;
426 	struct budget_info *bi = info->ext_priv;
427 	int max_bufsize;
428 	int height_mask;
429 
430 	memset(budget, 0, sizeof(struct budget));
431 
432 	dprintk(2, "dev: %p, budget: %p\n", dev, budget);
433 
434 	budget->card = bi;
435 	budget->dev = (struct saa7146_dev *) dev;
436 
437 	switch(budget->card->type) {
438 	case BUDGET_FS_ACTIVY:
439 		budget->buffer_width = TS_WIDTH_ACTIVY;
440 		max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
441 		height_mask = TS_HEIGHT_MASK_ACTIVY;
442 		break;
443 
444 	case BUDGET_KNC1C:
445 	case BUDGET_KNC1CP:
446 	case BUDGET_CIN1200C:
447 	case BUDGET_KNC1C_MK3:
448 	case BUDGET_KNC1C_TDA10024:
449 	case BUDGET_KNC1CP_MK3:
450 	case BUDGET_CIN1200C_MK3:
451 		budget->buffer_width = TS_WIDTH_DVBC;
452 		max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
453 		height_mask = TS_HEIGHT_MASK_DVBC;
454 		break;
455 
456 	default:
457 		budget->buffer_width = TS_WIDTH;
458 		max_bufsize = TS_MAX_BUFSIZE_K;
459 		height_mask = TS_HEIGHT_MASK;
460 	}
461 
462 	if (dma_buffer_size < TS_MIN_BUFSIZE_K)
463 		dma_buffer_size = TS_MIN_BUFSIZE_K;
464 	else if (dma_buffer_size > max_bufsize)
465 		dma_buffer_size = max_bufsize;
466 
467 	budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
468 	if (budget->buffer_height > 0xfff) {
469 		budget->buffer_height /= 2;
470 		budget->buffer_height &= height_mask;
471 		budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
472 	} else {
473 		budget->buffer_height &= height_mask;
474 		budget->buffer_size = budget->buffer_height * budget->buffer_width;
475 	}
476 	budget->buffer_warning_threshold = budget->buffer_size * 80/100;
477 	budget->buffer_warnings = 0;
478 	budget->buffer_warning_time = jiffies;
479 
480 	dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
481 		budget->dev->name,
482 		budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
483 		budget->buffer_width, budget->buffer_height);
484 	printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
485 
486 	ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
487 				   owner, &budget->dev->pci->dev, adapter_nums);
488 	if (ret < 0)
489 		return ret;
490 
491 	/* set dd1 stream a & b */
492 	saa7146_write(dev, DD1_STREAM_B, 0x00000000);
493 	saa7146_write(dev, MC2, (MASK_09 | MASK_25));
494 	saa7146_write(dev, MC2, (MASK_10 | MASK_26));
495 	saa7146_write(dev, DD1_INIT, 0x02000000);
496 	saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
497 
498 	if (bi->type != BUDGET_FS_ACTIVY)
499 		budget->video_port = BUDGET_VIDEO_PORTB;
500 	else
501 		budget->video_port = BUDGET_VIDEO_PORTA;
502 	spin_lock_init(&budget->feedlock);
503 	spin_lock_init(&budget->debilock);
504 
505 	/* the Siemens DVB needs this if you want to have the i2c chips
506 	   get recognized before the main driver is loaded */
507 	if (bi->type != BUDGET_FS_ACTIVY)
508 		saa7146_write(dev, GPIO_CTRL, 0x500000);	/* GPIO 3 = 1 */
509 
510 	strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
511 
512 	saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
513 	strcpy(budget->i2c_adap.name, budget->card->name);
514 
515 	if (i2c_add_adapter(&budget->i2c_adap) < 0) {
516 		ret = -ENOMEM;
517 		goto err_dvb_unregister;
518 	}
519 
520 	ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
521 
522 	budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
523 	if (NULL == budget->grabbing) {
524 		ret = -ENOMEM;
525 		goto err_del_i2c;
526 	}
527 
528 	saa7146_write(dev, PCI_BT_V1, 0x001c0000);
529 	/* upload all */
530 	saa7146_write(dev, GPIO_CTRL, 0x000000);
531 
532 	tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
533 
534 	/* frontend power on */
535 	if (bi->type != BUDGET_FS_ACTIVY)
536 		saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
537 
538 	if ((ret = budget_register(budget)) == 0)
539 		return 0; /* Everything OK */
540 
541 	/* An error occurred, cleanup resources */
542 	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
543 
544 err_del_i2c:
545 	i2c_del_adapter(&budget->i2c_adap);
546 
547 err_dvb_unregister:
548 	dvb_unregister_adapter(&budget->dvb_adapter);
549 
550 	return ret;
551 }
552 
553 void ttpci_budget_init_hooks(struct budget *budget)
554 {
555 	if (budget->dvb_frontend && !budget->read_fe_status) {
556 		budget->read_fe_status = budget->dvb_frontend->ops.read_status;
557 		budget->dvb_frontend->ops.read_status = budget_read_fe_status;
558 	}
559 }
560 
561 int ttpci_budget_deinit(struct budget *budget)
562 {
563 	struct saa7146_dev *dev = budget->dev;
564 
565 	dprintk(2, "budget: %p\n", budget);
566 
567 	budget_unregister(budget);
568 
569 	tasklet_kill(&budget->vpe_tasklet);
570 
571 	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
572 
573 	i2c_del_adapter(&budget->i2c_adap);
574 
575 	dvb_unregister_adapter(&budget->dvb_adapter);
576 
577 	return 0;
578 }
579 
580 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
581 {
582 	struct budget *budget = (struct budget *) dev->ext_priv;
583 
584 	dprintk(8, "dev: %p, budget: %p\n", dev, budget);
585 
586 	if (*isr & MASK_10)
587 		tasklet_schedule(&budget->vpe_tasklet);
588 }
589 
590 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
591 {
592 	struct budget *budget = (struct budget *) dev->ext_priv;
593 
594 	spin_lock(&budget->feedlock);
595 	budget->video_port = video_port;
596 	if (budget->feeding) {
597 		stop_ts_capture(budget);
598 		start_ts_capture(budget);
599 	}
600 	spin_unlock(&budget->feedlock);
601 }
602 
603 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
604 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
605 EXPORT_SYMBOL_GPL(ttpci_budget_init);
606 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
607 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
608 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
609 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
610 EXPORT_SYMBOL_GPL(budget_debug);
611 
612 MODULE_LICENSE("GPL");
613