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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
53int budget_debug;
54static int dma_buffer_size = TS_MIN_BUFSIZE_K;
55module_param_named(debug, budget_debug, int, 0644);
56module_param_named(bufsize, dma_buffer_size, int, 0444);
57MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
58MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
59
60
61
62
63
64static int stop_ts_capture(struct budget *budget)
65{
66 dprintk(2, "budget: %p\n", budget);
67
68 saa7146_write(budget->dev, MC1, MASK_20);
69 SAA7146_IER_DISABLE(budget->dev, MASK_10);
70 return 0;
71}
72
73static 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);
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
92
93
94
95
96
97
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
143 saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
144 } else {
145
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);
158 SAA7146_IER_ENABLE(budget->dev, MASK_10);
159 saa7146_write(dev, MC1, (MASK_04 | MASK_20));
160
161 return 0;
162}
163
164static int budget_read_fe_status(struct dvb_frontend *fe, fe_status_t *status)
165{
166 struct budget *budget = (struct budget *) fe->dvb->priv;
167 int synced;
168 int ret;
169
170 if (budget->read_fe_status)
171 ret = budget->read_fe_status(fe, status);
172 else
173 ret = -EINVAL;
174
175 if (!ret) {
176 synced = (*status & FE_HAS_LOCK);
177 if (synced != budget->fe_synced) {
178 budget->fe_synced = synced;
179 spin_lock(&budget->feedlock);
180 if (synced)
181 start_ts_capture(budget);
182 else
183 stop_ts_capture(budget);
184 spin_unlock(&budget->feedlock);
185 }
186 }
187 return ret;
188}
189
190static void vpeirq(unsigned long data)
191{
192 struct budget *budget = (struct budget *) data;
193 u8 *mem = (u8 *) (budget->grabbing);
194 u32 olddma = budget->ttbp;
195 u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
196 u32 count;
197
198
199 pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
200
201
202 newdma -= newdma % 188;
203
204 if (newdma >= budget->buffer_size)
205 return;
206
207 budget->ttbp = newdma;
208
209 if (budget->feeding == 0 || newdma == olddma)
210 return;
211
212 if (newdma > olddma) {
213 count = newdma - olddma;
214 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
215 } else {
216 count = budget->buffer_size - olddma;
217 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
218 count += newdma;
219 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
220 }
221
222 if (count > budget->buffer_warning_threshold)
223 budget->buffer_warnings++;
224
225 if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
226 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
227 budget->dev->name, __func__, budget->buffer_warnings, count);
228 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
229 budget->buffer_warnings = 0;
230 }
231}
232
233
234static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
235 int addr, int count, int nobusyloop)
236{
237 struct saa7146_dev *saa = budget->dev;
238 int result;
239
240 result = saa7146_wait_for_debi_done(saa, nobusyloop);
241 if (result < 0)
242 return result;
243
244 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
245 saa7146_write(saa, DEBI_CONFIG, config);
246 saa7146_write(saa, DEBI_PAGE, 0);
247 saa7146_write(saa, MC2, (2 << 16) | 2);
248
249 result = saa7146_wait_for_debi_done(saa, nobusyloop);
250 if (result < 0)
251 return result;
252
253 result = saa7146_read(saa, DEBI_AD);
254 result &= (0xffffffffUL >> ((4 - count) * 8));
255 return result;
256}
257
258int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
259 int uselocks, int nobusyloop)
260{
261 if (count > 4 || count <= 0)
262 return 0;
263
264 if (uselocks) {
265 unsigned long flags;
266 int result;
267
268 spin_lock_irqsave(&budget->debilock, flags);
269 result = ttpci_budget_debiread_nolock(budget, config, addr,
270 count, nobusyloop);
271 spin_unlock_irqrestore(&budget->debilock, flags);
272 return result;
273 }
274 return ttpci_budget_debiread_nolock(budget, config, addr,
275 count, nobusyloop);
276}
277
278static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
279 int addr, int count, u32 value, int nobusyloop)
280{
281 struct saa7146_dev *saa = budget->dev;
282 int result;
283
284 result = saa7146_wait_for_debi_done(saa, nobusyloop);
285 if (result < 0)
286 return result;
287
288 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
289 saa7146_write(saa, DEBI_CONFIG, config);
290 saa7146_write(saa, DEBI_PAGE, 0);
291 saa7146_write(saa, DEBI_AD, value);
292 saa7146_write(saa, MC2, (2 << 16) | 2);
293
294 result = saa7146_wait_for_debi_done(saa, nobusyloop);
295 return result < 0 ? result : 0;
296}
297
298int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
299 int count, u32 value, int uselocks, int nobusyloop)
300{
301 if (count > 4 || count <= 0)
302 return 0;
303
304 if (uselocks) {
305 unsigned long flags;
306 int result;
307
308 spin_lock_irqsave(&budget->debilock, flags);
309 result = ttpci_budget_debiwrite_nolock(budget, config, addr,
310 count, value, nobusyloop);
311 spin_unlock_irqrestore(&budget->debilock, flags);
312 return result;
313 }
314 return ttpci_budget_debiwrite_nolock(budget, config, addr,
315 count, value, nobusyloop);
316}
317
318
319
320
321
322
323static int budget_start_feed(struct dvb_demux_feed *feed)
324{
325 struct dvb_demux *demux = feed->demux;
326 struct budget *budget = (struct budget *) demux->priv;
327 int status = 0;
328
329 dprintk(2, "budget: %p\n", budget);
330
331 if (!demux->dmx.frontend)
332 return -EINVAL;
333
334 spin_lock(&budget->feedlock);
335 feed->pusi_seen = 0;
336 if (budget->feeding++ == 0)
337 status = start_ts_capture(budget);
338 spin_unlock(&budget->feedlock);
339 return status;
340}
341
342static int budget_stop_feed(struct dvb_demux_feed *feed)
343{
344 struct dvb_demux *demux = feed->demux;
345 struct budget *budget = (struct budget *) demux->priv;
346 int status = 0;
347
348 dprintk(2, "budget: %p\n", budget);
349
350 spin_lock(&budget->feedlock);
351 if (--budget->feeding == 0)
352 status = stop_ts_capture(budget);
353 spin_unlock(&budget->feedlock);
354 return status;
355}
356
357static int budget_register(struct budget *budget)
358{
359 struct dvb_demux *dvbdemux = &budget->demux;
360 int ret;
361
362 dprintk(2, "budget: %p\n", budget);
363
364 dvbdemux->priv = (void *) budget;
365
366 dvbdemux->filternum = 256;
367 dvbdemux->feednum = 256;
368 dvbdemux->start_feed = budget_start_feed;
369 dvbdemux->stop_feed = budget_stop_feed;
370 dvbdemux->write_to_decoder = NULL;
371
372 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
373 DMX_MEMORY_BASED_FILTERING);
374
375 dvb_dmx_init(&budget->demux);
376
377 budget->dmxdev.filternum = 256;
378 budget->dmxdev.demux = &dvbdemux->dmx;
379 budget->dmxdev.capabilities = 0;
380
381 dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
382
383 budget->hw_frontend.source = DMX_FRONTEND_0;
384
385 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
386
387 if (ret < 0)
388 return ret;
389
390 budget->mem_frontend.source = DMX_MEMORY_FE;
391 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
392 if (ret < 0)
393 return ret;
394
395 ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
396 if (ret < 0)
397 return ret;
398
399 dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
400
401 return 0;
402}
403
404static void budget_unregister(struct budget *budget)
405{
406 struct dvb_demux *dvbdemux = &budget->demux;
407
408 dprintk(2, "budget: %p\n", budget);
409
410 dvb_net_release(&budget->dvb_net);
411
412 dvbdemux->dmx.close(&dvbdemux->dmx);
413 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
414 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
415
416 dvb_dmxdev_release(&budget->dmxdev);
417 dvb_dmx_release(&budget->demux);
418}
419
420int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
421 struct saa7146_pci_extension_data *info,
422 struct module *owner, short *adapter_nums)
423{
424 int ret = 0;
425 struct budget_info *bi = info->ext_priv;
426 int max_bufsize;
427 int height_mask;
428
429 memset(budget, 0, sizeof(struct budget));
430
431 dprintk(2, "dev: %p, budget: %p\n", dev, budget);
432
433 budget->card = bi;
434 budget->dev = (struct saa7146_dev *) dev;
435
436 switch(budget->card->type) {
437 case BUDGET_FS_ACTIVY:
438 budget->buffer_width = TS_WIDTH_ACTIVY;
439 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
440 height_mask = TS_HEIGHT_MASK_ACTIVY;
441 break;
442
443 case BUDGET_KNC1C:
444 case BUDGET_KNC1CP:
445 case BUDGET_CIN1200C:
446 case BUDGET_KNC1C_MK3:
447 case BUDGET_KNC1C_TDA10024:
448 case BUDGET_KNC1CP_MK3:
449 case BUDGET_CIN1200C_MK3:
450 budget->buffer_width = TS_WIDTH_DVBC;
451 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
452 height_mask = TS_HEIGHT_MASK_DVBC;
453 break;
454
455 default:
456 budget->buffer_width = TS_WIDTH;
457 max_bufsize = TS_MAX_BUFSIZE_K;
458 height_mask = TS_HEIGHT_MASK;
459 }
460
461 if (dma_buffer_size < TS_MIN_BUFSIZE_K)
462 dma_buffer_size = TS_MIN_BUFSIZE_K;
463 else if (dma_buffer_size > max_bufsize)
464 dma_buffer_size = max_bufsize;
465
466 budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
467 if (budget->buffer_height > 0xfff) {
468 budget->buffer_height /= 2;
469 budget->buffer_height &= height_mask;
470 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
471 } else {
472 budget->buffer_height &= height_mask;
473 budget->buffer_size = budget->buffer_height * budget->buffer_width;
474 }
475 budget->buffer_warning_threshold = budget->buffer_size * 80/100;
476 budget->buffer_warnings = 0;
477 budget->buffer_warning_time = jiffies;
478
479 dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
480 budget->dev->name,
481 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
482 budget->buffer_width, budget->buffer_height);
483 printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
484
485 ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
486 owner, &budget->dev->pci->dev, adapter_nums);
487 if (ret < 0)
488 return ret;
489
490
491 saa7146_write(dev, DD1_STREAM_B, 0x00000000);
492 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
493 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
494 saa7146_write(dev, DD1_INIT, 0x02000000);
495 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
496
497 if (bi->type != BUDGET_FS_ACTIVY)
498 budget->video_port = BUDGET_VIDEO_PORTB;
499 else
500 budget->video_port = BUDGET_VIDEO_PORTA;
501 spin_lock_init(&budget->feedlock);
502 spin_lock_init(&budget->debilock);
503
504
505
506 if (bi->type != BUDGET_FS_ACTIVY)
507 saa7146_write(dev, GPIO_CTRL, 0x500000);
508
509 strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
510
511 saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
512 strcpy(budget->i2c_adap.name, budget->card->name);
513
514 if (i2c_add_adapter(&budget->i2c_adap) < 0) {
515 ret = -ENOMEM;
516 goto err_dvb_unregister;
517 }
518
519 ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
520
521 budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
522 if (NULL == budget->grabbing) {
523 ret = -ENOMEM;
524 goto err_del_i2c;
525 }
526
527 saa7146_write(dev, PCI_BT_V1, 0x001c0000);
528
529 saa7146_write(dev, GPIO_CTRL, 0x000000);
530
531 tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
532
533
534 if (bi->type != BUDGET_FS_ACTIVY)
535 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
536
537 if ((ret = budget_register(budget)) == 0)
538 return 0;
539
540
541 saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
542
543err_del_i2c:
544 i2c_del_adapter(&budget->i2c_adap);
545
546err_dvb_unregister:
547 dvb_unregister_adapter(&budget->dvb_adapter);
548
549 return ret;
550}
551
552void ttpci_budget_init_hooks(struct budget *budget)
553{
554 if (budget->dvb_frontend && !budget->read_fe_status) {
555 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
556 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
557 }
558}
559
560int 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 tasklet_kill(&budget->vpe_tasklet);
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
579void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
580{
581 struct budget *budget = (struct budget *) dev->ext_priv;
582
583 dprintk(8, "dev: %p, budget: %p\n", dev, budget);
584
585 if (*isr & MASK_10)
586 tasklet_schedule(&budget->vpe_tasklet);
587}
588
589void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
590{
591 struct budget *budget = (struct budget *) dev->ext_priv;
592
593 spin_lock(&budget->feedlock);
594 budget->video_port = video_port;
595 if (budget->feeding) {
596 stop_ts_capture(budget);
597 start_ts_capture(budget);
598 }
599 spin_unlock(&budget->feedlock);
600}
601
602EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
603EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
604EXPORT_SYMBOL_GPL(ttpci_budget_init);
605EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
606EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
607EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
608EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
609EXPORT_SYMBOL_GPL(budget_debug);
610
611MODULE_LICENSE("GPL");
612
