xref: /linux/drivers/media/pci/bt8xx/dvb-bt8xx.c (revision 55d0969c451159cff86949b38c39171cab962069)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Bt8xx based DVB adapter driver
4  *
5  * Copyright (C) 2002,2003 Florian Schirmer <jolt@tuxbox.org>
6  */
7 
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9 
10 #include <linux/bitops.h>
11 #include <linux/module.h>
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/device.h>
15 #include <linux/delay.h>
16 #include <linux/slab.h>
17 #include <linux/i2c.h>
18 
19 #include <media/dmxdev.h>
20 #include <media/dvbdev.h>
21 #include <media/dvb_demux.h>
22 #include <media/dvb_frontend.h>
23 #include "dvb-bt8xx.h"
24 #include "bt878.h"
25 
26 static int debug;
27 
28 module_param(debug, int, 0644);
29 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
30 
31 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
32 
33 #define dprintk(fmt, arg...) do {				\
34 	if (debug)						\
35 		printk(KERN_DEBUG pr_fmt("%s: " fmt),		\
36 		       __func__, ##arg);			\
37 } while (0)
38 
39 
40 #define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
41 
42 static void dvb_bt8xx_work(struct work_struct *t)
43 {
44 	struct bt878 *bt = from_work(bt, t, bh_work);
45 	struct dvb_bt8xx_card *card = dev_get_drvdata(&bt->adapter->dev);
46 
47 	dprintk("%d\n", card->bt->finished_block);
48 
49 	while (card->bt->last_block != card->bt->finished_block) {
50 		(card->bt->TS_Size ? dvb_dmx_swfilter_204 : dvb_dmx_swfilter)
51 			(&card->demux,
52 			 &card->bt->buf_cpu[card->bt->last_block *
53 					    card->bt->block_bytes],
54 			 card->bt->block_bytes);
55 		card->bt->last_block = (card->bt->last_block + 1) %
56 					card->bt->block_count;
57 	}
58 }
59 
60 static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
61 {
62 	struct dvb_demux*dvbdmx = dvbdmxfeed->demux;
63 	struct dvb_bt8xx_card *card = dvbdmx->priv;
64 	int rc;
65 
66 	dprintk("dvb_bt8xx: start_feed\n");
67 
68 	if (!dvbdmx->dmx.frontend)
69 		return -EINVAL;
70 
71 	mutex_lock(&card->lock);
72 	card->nfeeds++;
73 	rc = card->nfeeds;
74 	if (card->nfeeds == 1)
75 		bt878_start(card->bt, card->gpio_mode,
76 			    card->op_sync_orin, card->irq_err_ignore);
77 	mutex_unlock(&card->lock);
78 	return rc;
79 }
80 
81 static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
82 {
83 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
84 	struct dvb_bt8xx_card *card = dvbdmx->priv;
85 
86 	dprintk("dvb_bt8xx: stop_feed\n");
87 
88 	if (!dvbdmx->dmx.frontend)
89 		return -EINVAL;
90 
91 	mutex_lock(&card->lock);
92 	card->nfeeds--;
93 	if (card->nfeeds == 0)
94 		bt878_stop(card->bt);
95 	mutex_unlock(&card->lock);
96 
97 	return 0;
98 }
99 
100 static int is_pci_slot_eq(struct pci_dev* adev, struct pci_dev* bdev)
101 {
102 	if ((adev->subsystem_vendor == bdev->subsystem_vendor) &&
103 		(adev->subsystem_device == bdev->subsystem_device) &&
104 		(adev->bus->number == bdev->bus->number) &&
105 		(PCI_SLOT(adev->devfn) == PCI_SLOT(bdev->devfn)))
106 		return 1;
107 	return 0;
108 }
109 
110 static struct bt878 *dvb_bt8xx_878_match(unsigned int bttv_nr,
111 					 struct pci_dev* bttv_pci_dev)
112 {
113 	unsigned int card_nr;
114 
115 	/* Hmm, n squared. Hope n is small */
116 	for (card_nr = 0; card_nr < bt878_num; card_nr++)
117 		if (is_pci_slot_eq(bt878[card_nr].dev, bttv_pci_dev))
118 			return &bt878[card_nr];
119 	return NULL;
120 }
121 
122 static int thomson_dtt7579_demod_init(struct dvb_frontend* fe)
123 {
124 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x38 };
125 	static u8 mt352_reset [] = { 0x50, 0x80 };
126 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
127 	static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0x20 };
128 	static u8 mt352_gpp_ctl_cfg [] = { 0x8C, 0x33 };
129 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
130 
131 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
132 	udelay(2000);
133 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
134 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
135 
136 	mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
137 	mt352_write(fe, mt352_gpp_ctl_cfg, sizeof(mt352_gpp_ctl_cfg));
138 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
139 
140 	return 0;
141 }
142 
143 static int thomson_dtt7579_tuner_calc_regs(struct dvb_frontend *fe, u8* pllbuf, int buf_len)
144 {
145 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
146 	u32 div;
147 	unsigned char bs = 0;
148 	unsigned char cp = 0;
149 
150 	if (buf_len < 5)
151 		return -EINVAL;
152 
153 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
154 
155 	if (c->frequency < 542000000)
156 		cp = 0xb4;
157 	else if (c->frequency < 771000000)
158 		cp = 0xbc;
159 	else
160 		cp = 0xf4;
161 
162 	if (c->frequency == 0)
163 		bs = 0x03;
164 	else if (c->frequency < 443250000)
165 		bs = 0x02;
166 	else
167 		bs = 0x08;
168 
169 	pllbuf[0] = 0x60;
170 	pllbuf[1] = div >> 8;
171 	pllbuf[2] = div & 0xff;
172 	pllbuf[3] = cp;
173 	pllbuf[4] = bs;
174 
175 	return 5;
176 }
177 
178 static struct mt352_config thomson_dtt7579_config = {
179 	.demod_address = 0x0f,
180 	.demod_init = thomson_dtt7579_demod_init,
181 };
182 
183 static struct zl10353_config thomson_dtt7579_zl10353_config = {
184 	.demod_address = 0x0f,
185 };
186 
187 static int cx24108_tuner_set_params(struct dvb_frontend *fe)
188 {
189 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
190 	u32 freq = c->frequency;
191 	int i, a, n, pump;
192 	u32 band, pll;
193 	static const u32 osci[] = {
194 		950000, 1019000, 1075000, 1178000, 1296000, 1432000,
195 		1576000, 1718000, 1856000, 2036000, 2150000
196 	};
197 	static const u32 bandsel[] = {
198 		0, 0x00020000, 0x00040000, 0x00100800, 0x00101000,
199 		0x00102000, 0x00104000, 0x00108000, 0x00110000,
200 		0x00120000, 0x00140000
201 	};
202 
203 	#define XTAL 1011100 /* Hz, really 1.0111 MHz and a /10 prescaler */
204 	dprintk("cx24108 debug: entering SetTunerFreq, freq=%d\n", freq);
205 
206 	/* This is really the bit driving the tuner chip cx24108 */
207 
208 	if (freq<950000)
209 		freq = 950000; /* kHz */
210 	else if (freq>2150000)
211 		freq = 2150000; /* satellite IF is 950..2150MHz */
212 
213 	/* decide which VCO to use for the input frequency */
214 	for(i = 1; (i < ARRAY_SIZE(osci) - 1) && (osci[i] < freq); i++);
215 	dprintk("cx24108 debug: select vco #%d (f=%d)\n", i, freq);
216 	band=bandsel[i];
217 	/* the gain values must be set by SetSymbolrate */
218 	/* compute the pll divider needed, from Conexant data sheet,
219 	   resolved for (n*32+a), remember f(vco) is f(receive) *2 or *4,
220 	   depending on the divider bit. It is set to /4 on the 2 lowest
221 	   bands  */
222 	n=((i<=2?2:1)*freq*10L)/(XTAL/100);
223 	a=n%32; n/=32; if(a==0) n--;
224 	pump=(freq<(osci[i-1]+osci[i])/2);
225 	pll=0xf8000000|
226 	    ((pump?1:2)<<(14+11))|
227 	    ((n&0x1ff)<<(5+11))|
228 	    ((a&0x1f)<<11);
229 	/* everything is shifted left 11 bits to left-align the bits in the
230 	   32bit word. Output to the tuner goes MSB-aligned, after all */
231 	dprintk("cx24108 debug: pump=%d, n=%d, a=%d\n", pump, n, a);
232 	cx24110_pll_write(fe,band);
233 	/* set vga and vca to their widest-band settings, as a precaution.
234 	   SetSymbolrate might not be called to set this up */
235 	cx24110_pll_write(fe,0x500c0000);
236 	cx24110_pll_write(fe,0x83f1f800);
237 	cx24110_pll_write(fe,pll);
238 	//writereg(client,0x56,0x7f);
239 
240 	return 0;
241 }
242 
243 static int pinnsat_tuner_init(struct dvb_frontend* fe)
244 {
245 	struct dvb_bt8xx_card *card = fe->dvb->priv;
246 
247 	bttv_gpio_enable(card->bttv_nr, 1, 1);  /* output */
248 	bttv_write_gpio(card->bttv_nr, 1, 1);   /* relay on */
249 
250 	return 0;
251 }
252 
253 static int pinnsat_tuner_sleep(struct dvb_frontend* fe)
254 {
255 	struct dvb_bt8xx_card *card = fe->dvb->priv;
256 
257 	bttv_write_gpio(card->bttv_nr, 1, 0);   /* relay off */
258 
259 	return 0;
260 }
261 
262 static struct cx24110_config pctvsat_config = {
263 	.demod_address = 0x55,
264 };
265 
266 static int microtune_mt7202dtf_tuner_set_params(struct dvb_frontend *fe)
267 {
268 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
269 	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
270 	u8 cfg, cpump, band_select;
271 	u8 data[4];
272 	u32 div;
273 	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = data, .len = sizeof(data) };
274 
275 	div = (36000000 + c->frequency + 83333) / 166666;
276 	cfg = 0x88;
277 
278 	if (c->frequency < 175000000)
279 		cpump = 2;
280 	else if (c->frequency < 390000000)
281 		cpump = 1;
282 	else if (c->frequency < 470000000)
283 		cpump = 2;
284 	else if (c->frequency < 750000000)
285 		cpump = 2;
286 	else
287 		cpump = 3;
288 
289 	if (c->frequency < 175000000)
290 		band_select = 0x0e;
291 	else if (c->frequency < 470000000)
292 		band_select = 0x05;
293 	else
294 		band_select = 0x03;
295 
296 	data[0] = (div >> 8) & 0x7f;
297 	data[1] = div & 0xff;
298 	data[2] = ((div >> 10) & 0x60) | cfg;
299 	data[3] = (cpump << 6) | band_select;
300 
301 	if (fe->ops.i2c_gate_ctrl)
302 		fe->ops.i2c_gate_ctrl(fe, 1);
303 	i2c_transfer(card->i2c_adapter, &msg, 1);
304 	return (div * 166666 - 36000000);
305 }
306 
307 static int microtune_mt7202dtf_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
308 {
309 	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
310 
311 	return request_firmware(fw, name, &bt->bt->dev->dev);
312 }
313 
314 static const struct sp887x_config microtune_mt7202dtf_config = {
315 	.demod_address = 0x70,
316 	.request_firmware = microtune_mt7202dtf_request_firmware,
317 };
318 
319 static int advbt771_samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
320 {
321 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
322 	static u8 mt352_reset [] = { 0x50, 0x80 };
323 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
324 	static u8 mt352_agc_cfg [] = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
325 				       0x00, 0xFF, 0x00, 0x40, 0x40 };
326 	static u8 mt352_av771_extra[] = { 0xB5, 0x7A };
327 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
328 
329 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
330 	udelay(2000);
331 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
332 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
333 
334 	mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
335 	udelay(2000);
336 	mt352_write(fe, mt352_av771_extra,sizeof(mt352_av771_extra));
337 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
338 
339 	return 0;
340 }
341 
342 static int advbt771_samsung_tdtc9251dh0_tuner_calc_regs(struct dvb_frontend *fe, u8 *pllbuf, int buf_len)
343 {
344 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
345 	u32 div;
346 	unsigned char bs = 0;
347 	unsigned char cp = 0;
348 
349 	if (buf_len < 5) return -EINVAL;
350 
351 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
352 
353 	if (c->frequency < 150000000)
354 		cp = 0xB4;
355 	else if (c->frequency < 173000000)
356 		cp = 0xBC;
357 	else if (c->frequency < 250000000)
358 		cp = 0xB4;
359 	else if (c->frequency < 400000000)
360 		cp = 0xBC;
361 	else if (c->frequency < 420000000)
362 		cp = 0xF4;
363 	else if (c->frequency < 470000000)
364 		cp = 0xFC;
365 	else if (c->frequency < 600000000)
366 		cp = 0xBC;
367 	else if (c->frequency < 730000000)
368 		cp = 0xF4;
369 	else
370 		cp = 0xFC;
371 
372 	if (c->frequency < 150000000)
373 		bs = 0x01;
374 	else if (c->frequency < 173000000)
375 		bs = 0x01;
376 	else if (c->frequency < 250000000)
377 		bs = 0x02;
378 	else if (c->frequency < 400000000)
379 		bs = 0x02;
380 	else if (c->frequency < 420000000)
381 		bs = 0x02;
382 	else if (c->frequency < 470000000)
383 		bs = 0x02;
384 	else
385 		bs = 0x08;
386 
387 	pllbuf[0] = 0x61;
388 	pllbuf[1] = div >> 8;
389 	pllbuf[2] = div & 0xff;
390 	pllbuf[3] = cp;
391 	pllbuf[4] = bs;
392 
393 	return 5;
394 }
395 
396 static struct mt352_config advbt771_samsung_tdtc9251dh0_config = {
397 	.demod_address = 0x0f,
398 	.demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
399 };
400 
401 static const struct dst_config dst_config = {
402 	.demod_address = 0x55,
403 };
404 
405 static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
406 {
407 	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
408 
409 	return request_firmware(fw, name, &bt->bt->dev->dev);
410 }
411 
412 static void or51211_setmode(struct dvb_frontend * fe, int mode)
413 {
414 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
415 	bttv_write_gpio(bt->bttv_nr, 0x0002, mode);   /* Reset */
416 	msleep(20);
417 }
418 
419 static void or51211_reset(struct dvb_frontend * fe)
420 {
421 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
422 
423 	/* RESET DEVICE
424 	 * reset is controlled by GPIO-0
425 	 * when set to 0 causes reset and when to 1 for normal op
426 	 * must remain reset for 128 clock cycles on a 50Mhz clock
427 	 * also PRM1 PRM2 & PRM4 are controlled by GPIO-1,GPIO-2 & GPIO-4
428 	 * We assume that the reset has be held low long enough or we
429 	 * have been reset by a power on.  When the driver is unloaded
430 	 * reset set to 0 so if reloaded we have been reset.
431 	 */
432 	/* reset & PRM1,2&4 are outputs */
433 	int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
434 	if (ret != 0)
435 		pr_warn("or51211: Init Error - Can't Reset DVR (%i)\n", ret);
436 	bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000);   /* Reset */
437 	msleep(20);
438 	/* Now set for normal operation */
439 	bttv_write_gpio(bt->bttv_nr, 0x0001F, 0x0001);
440 	/* wait for operation to begin */
441 	msleep(500);
442 }
443 
444 static void or51211_sleep(struct dvb_frontend * fe)
445 {
446 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
447 	bttv_write_gpio(bt->bttv_nr, 0x0001, 0x0000);
448 }
449 
450 static const struct or51211_config or51211_config = {
451 	.demod_address = 0x15,
452 	.request_firmware = or51211_request_firmware,
453 	.setmode = or51211_setmode,
454 	.reset = or51211_reset,
455 	.sleep = or51211_sleep,
456 };
457 
458 static int vp3021_alps_tded4_tuner_set_params(struct dvb_frontend *fe)
459 {
460 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
461 	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
462 	u8 buf[4];
463 	u32 div;
464 	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };
465 
466 	div = (c->frequency + 36166667) / 166667;
467 
468 	buf[0] = (div >> 8) & 0x7F;
469 	buf[1] = div & 0xFF;
470 	buf[2] = 0x85;
471 	if ((c->frequency >= 47000000) && (c->frequency < 153000000))
472 		buf[3] = 0x01;
473 	else if ((c->frequency >= 153000000) && (c->frequency < 430000000))
474 		buf[3] = 0x02;
475 	else if ((c->frequency >= 430000000) && (c->frequency < 824000000))
476 		buf[3] = 0x0C;
477 	else if ((c->frequency >= 824000000) && (c->frequency < 863000000))
478 		buf[3] = 0x8C;
479 	else
480 		return -EINVAL;
481 
482 	if (fe->ops.i2c_gate_ctrl)
483 		fe->ops.i2c_gate_ctrl(fe, 1);
484 	i2c_transfer(card->i2c_adapter, &msg, 1);
485 	return 0;
486 }
487 
488 static struct nxt6000_config vp3021_alps_tded4_config = {
489 	.demod_address = 0x0a,
490 	.clock_inversion = 1,
491 };
492 
493 static int digitv_alps_tded4_demod_init(struct dvb_frontend* fe)
494 {
495 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
496 	static u8 mt352_reset [] = { 0x50, 0x80 };
497 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
498 	static u8 mt352_agc_cfg [] = { 0x67, 0x20, 0xa0 };
499 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
500 
501 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
502 	udelay(2000);
503 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
504 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
505 	mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
506 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
507 
508 	return 0;
509 }
510 
511 static int digitv_alps_tded4_tuner_calc_regs(struct dvb_frontend *fe,  u8 *pllbuf, int buf_len)
512 {
513 	u32 div;
514 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
515 
516 	if (buf_len < 5)
517 		return -EINVAL;
518 
519 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
520 
521 	pllbuf[0] = 0x61;
522 	pllbuf[1] = (div >> 8) & 0x7F;
523 	pllbuf[2] = div & 0xFF;
524 	pllbuf[3] = 0x85;
525 
526 	dprintk("frequency %u, div %u\n", c->frequency, div);
527 
528 	if (c->frequency < 470000000)
529 		pllbuf[4] = 0x02;
530 	else if (c->frequency > 823000000)
531 		pllbuf[4] = 0x88;
532 	else
533 		pllbuf[4] = 0x08;
534 
535 	if (c->bandwidth_hz == 8000000)
536 		pllbuf[4] |= 0x04;
537 
538 	return 5;
539 }
540 
541 static void digitv_alps_tded4_reset(struct dvb_bt8xx_card *bt)
542 {
543 	/*
544 	 * Reset the frontend, must be called before trying
545 	 * to initialise the MT352 or mt352_attach
546 	 * will fail. Same goes for the nxt6000 frontend.
547 	 *
548 	 */
549 
550 	int ret = bttv_gpio_enable(bt->bttv_nr, 0x08, 0x08);
551 	if (ret != 0)
552 		pr_warn("digitv_alps_tded4: Init Error - Can't Reset DVR (%i)\n",
553 			ret);
554 
555 	/* Pulse the reset line */
556 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
557 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x00); /* Low  */
558 	msleep(100);
559 
560 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
561 }
562 
563 static struct mt352_config digitv_alps_tded4_config = {
564 	.demod_address = 0x0a,
565 	.demod_init = digitv_alps_tded4_demod_init,
566 };
567 
568 static struct lgdt330x_config tdvs_tua6034_config = {
569 	.demod_chip       = LGDT3303,
570 	.serial_mpeg      = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
571 };
572 
573 static void lgdt330x_reset(struct dvb_bt8xx_card *bt)
574 {
575 	/* Set pin 27 of the lgdt3303 chip high to reset the frontend */
576 
577 	/* Pulse the reset line */
578 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
579 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000000); /* Low  */
580 	msleep(100);
581 
582 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
583 	msleep(100);
584 }
585 
586 static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
587 {
588 	struct dst_state* state = NULL;
589 
590 	switch(type) {
591 	case BTTV_BOARD_DVICO_DVBT_LITE:
592 		card->fe = dvb_attach(mt352_attach, &thomson_dtt7579_config, card->i2c_adapter);
593 
594 		if (card->fe == NULL)
595 			card->fe = dvb_attach(zl10353_attach, &thomson_dtt7579_zl10353_config,
596 						  card->i2c_adapter);
597 
598 		if (card->fe != NULL) {
599 			card->fe->ops.tuner_ops.calc_regs = thomson_dtt7579_tuner_calc_regs;
600 			card->fe->ops.info.frequency_min_hz = 174 * MHz;
601 			card->fe->ops.info.frequency_max_hz = 862 * MHz;
602 		}
603 		break;
604 
605 	case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
606 		lgdt330x_reset(card);
607 		card->fe = dvb_attach(lgdt330x_attach, &tdvs_tua6034_config,
608 				      0x0e, card->i2c_adapter);
609 		if (card->fe != NULL) {
610 			dvb_attach(simple_tuner_attach, card->fe,
611 				   card->i2c_adapter, 0x61,
612 				   TUNER_LG_TDVS_H06XF);
613 			dprintk("dvb_bt8xx: lgdt330x detected\n");
614 		}
615 		break;
616 
617 	case BTTV_BOARD_NEBULA_DIGITV:
618 		/*
619 		 * It is possible to determine the correct frontend using the I2C bus (see the Nebula SDK);
620 		 * this would be a cleaner solution than trying each frontend in turn.
621 		 */
622 
623 		/* Old Nebula (marked (c)2003 on high profile pci card) has nxt6000 demod */
624 		digitv_alps_tded4_reset(card);
625 		card->fe = dvb_attach(nxt6000_attach, &vp3021_alps_tded4_config, card->i2c_adapter);
626 		if (card->fe != NULL) {
627 			card->fe->ops.tuner_ops.set_params = vp3021_alps_tded4_tuner_set_params;
628 			dprintk("dvb_bt8xx: an nxt6000 was detected on your digitv card\n");
629 			break;
630 		}
631 
632 		/* New Nebula (marked (c)2005 on low profile pci card) has mt352 demod */
633 		digitv_alps_tded4_reset(card);
634 		card->fe = dvb_attach(mt352_attach, &digitv_alps_tded4_config, card->i2c_adapter);
635 
636 		if (card->fe != NULL) {
637 			card->fe->ops.tuner_ops.calc_regs = digitv_alps_tded4_tuner_calc_regs;
638 			dprintk("dvb_bt8xx: an mt352 was detected on your digitv card\n");
639 		}
640 		break;
641 
642 	case BTTV_BOARD_AVDVBT_761:
643 		card->fe = dvb_attach(sp887x_attach, &microtune_mt7202dtf_config, card->i2c_adapter);
644 		if (card->fe) {
645 			card->fe->ops.tuner_ops.set_params = microtune_mt7202dtf_tuner_set_params;
646 		}
647 		break;
648 
649 	case BTTV_BOARD_AVDVBT_771:
650 		card->fe = dvb_attach(mt352_attach, &advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
651 		if (card->fe != NULL) {
652 			card->fe->ops.tuner_ops.calc_regs = advbt771_samsung_tdtc9251dh0_tuner_calc_regs;
653 			card->fe->ops.info.frequency_min_hz = 174 * MHz;
654 			card->fe->ops.info.frequency_max_hz = 862 * MHz;
655 		}
656 		break;
657 
658 	case BTTV_BOARD_TWINHAN_DST:
659 		/*	DST is not a frontend driver !!!		*/
660 		state = kmalloc(sizeof (struct dst_state), GFP_KERNEL);
661 		if (!state) {
662 			pr_err("No memory\n");
663 			break;
664 		}
665 		/*	Setup the Card					*/
666 		state->config = &dst_config;
667 		state->i2c = card->i2c_adapter;
668 		state->bt = card->bt;
669 		state->dst_ca = NULL;
670 		/*	DST is not a frontend, attaching the ASIC	*/
671 		if (dvb_attach(dst_attach, state, &card->dvb_adapter) == NULL) {
672 			pr_err("%s: Could not find a Twinhan DST\n", __func__);
673 			kfree(state);
674 			break;
675 		}
676 		/*	Attach other DST peripherals if any		*/
677 		/*	Conditional Access device			*/
678 		card->fe = &state->frontend;
679 		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
680 			dvb_attach(dst_ca_attach, state, &card->dvb_adapter);
681 		break;
682 
683 	case BTTV_BOARD_PINNACLESAT:
684 		card->fe = dvb_attach(cx24110_attach, &pctvsat_config, card->i2c_adapter);
685 		if (card->fe) {
686 			card->fe->ops.tuner_ops.init = pinnsat_tuner_init;
687 			card->fe->ops.tuner_ops.sleep = pinnsat_tuner_sleep;
688 			card->fe->ops.tuner_ops.set_params = cx24108_tuner_set_params;
689 		}
690 		break;
691 
692 	case BTTV_BOARD_PC_HDTV:
693 		card->fe = dvb_attach(or51211_attach, &or51211_config, card->i2c_adapter);
694 		if (card->fe != NULL)
695 			dvb_attach(simple_tuner_attach, card->fe,
696 				   card->i2c_adapter, 0x61,
697 				   TUNER_PHILIPS_FCV1236D);
698 		break;
699 	}
700 
701 	if (card->fe == NULL)
702 		pr_err("A frontend driver was not found for device [%04x:%04x] subsystem [%04x:%04x]\n",
703 		       card->bt->dev->vendor,
704 		       card->bt->dev->device,
705 		       card->bt->dev->subsystem_vendor,
706 		       card->bt->dev->subsystem_device);
707 	else
708 		if (dvb_register_frontend(&card->dvb_adapter, card->fe)) {
709 			pr_err("Frontend registration failed!\n");
710 			dvb_frontend_detach(card->fe);
711 			card->fe = NULL;
712 		}
713 }
714 
715 static int dvb_bt8xx_load_card(struct dvb_bt8xx_card *card, u32 type)
716 {
717 	int result;
718 
719 	result = dvb_register_adapter(&card->dvb_adapter, card->card_name,
720 				      THIS_MODULE, &card->bt->dev->dev,
721 				      adapter_nr);
722 	if (result < 0) {
723 		pr_err("dvb_register_adapter failed (errno = %d)\n", result);
724 		return result;
725 	}
726 	card->dvb_adapter.priv = card;
727 
728 	card->bt->adapter = card->i2c_adapter;
729 
730 	memset(&card->demux, 0, sizeof(struct dvb_demux));
731 
732 	card->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
733 
734 	card->demux.priv = card;
735 	card->demux.filternum = 256;
736 	card->demux.feednum = 256;
737 	card->demux.start_feed = dvb_bt8xx_start_feed;
738 	card->demux.stop_feed = dvb_bt8xx_stop_feed;
739 	card->demux.write_to_decoder = NULL;
740 
741 	result = dvb_dmx_init(&card->demux);
742 	if (result < 0) {
743 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
744 		goto err_unregister_adaptor;
745 	}
746 
747 	card->dmxdev.filternum = 256;
748 	card->dmxdev.demux = &card->demux.dmx;
749 	card->dmxdev.capabilities = 0;
750 
751 	result = dvb_dmxdev_init(&card->dmxdev, &card->dvb_adapter);
752 	if (result < 0) {
753 		pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
754 		goto err_dmx_release;
755 	}
756 
757 	card->fe_hw.source = DMX_FRONTEND_0;
758 
759 	result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_hw);
760 	if (result < 0) {
761 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
762 		goto err_dmxdev_release;
763 	}
764 
765 	card->fe_mem.source = DMX_MEMORY_FE;
766 
767 	result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_mem);
768 	if (result < 0) {
769 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
770 		goto err_remove_hw_frontend;
771 	}
772 
773 	result = card->demux.dmx.connect_frontend(&card->demux.dmx, &card->fe_hw);
774 	if (result < 0) {
775 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
776 		goto err_remove_mem_frontend;
777 	}
778 
779 	result = dvb_net_init(&card->dvb_adapter, &card->dvbnet, &card->demux.dmx);
780 	if (result < 0) {
781 		pr_err("dvb_net_init failed (errno = %d)\n", result);
782 		goto err_disconnect_frontend;
783 	}
784 
785 	INIT_WORK(&card->bt->bh_work, dvb_bt8xx_work);
786 
787 	frontend_init(card, type);
788 
789 	return 0;
790 
791 err_disconnect_frontend:
792 	card->demux.dmx.disconnect_frontend(&card->demux.dmx);
793 err_remove_mem_frontend:
794 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
795 err_remove_hw_frontend:
796 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
797 err_dmxdev_release:
798 	dvb_dmxdev_release(&card->dmxdev);
799 err_dmx_release:
800 	dvb_dmx_release(&card->demux);
801 err_unregister_adaptor:
802 	dvb_unregister_adapter(&card->dvb_adapter);
803 	return result;
804 }
805 
806 static int dvb_bt8xx_probe(struct bttv_sub_device *sub)
807 {
808 	struct dvb_bt8xx_card *card;
809 	struct pci_dev* bttv_pci_dev;
810 	int ret;
811 
812 	if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
813 		return -ENOMEM;
814 
815 	mutex_init(&card->lock);
816 	card->bttv_nr = sub->core->nr;
817 	strscpy(card->card_name, sub->core->v4l2_dev.name,
818 		sizeof(card->card_name));
819 	card->i2c_adapter = &sub->core->i2c_adap;
820 
821 	switch(sub->core->type) {
822 	case BTTV_BOARD_PINNACLESAT:
823 		card->gpio_mode = 0x0400c060;
824 		/* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
825 			      BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
826 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
827 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
828 		break;
829 
830 	case BTTV_BOARD_DVICO_DVBT_LITE:
831 		card->gpio_mode = 0x0400C060;
832 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
833 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
834 		/* 26, 15, 14, 6, 5
835 		 * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
836 		 * DA_APP(parallel) */
837 		break;
838 
839 	case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
840 		card->gpio_mode = 0x0400c060;
841 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
842 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
843 		break;
844 
845 	case BTTV_BOARD_NEBULA_DIGITV:
846 	case BTTV_BOARD_AVDVBT_761:
847 		card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
848 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
849 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
850 		/* A_PWRDN DA_SBR DA_APP (high speed serial) */
851 		break;
852 
853 	case BTTV_BOARD_AVDVBT_771: //case 0x07711461:
854 		card->gpio_mode = 0x0400402B;
855 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
856 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
857 		/* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
858 		break;
859 
860 	case BTTV_BOARD_TWINHAN_DST:
861 		card->gpio_mode = 0x2204f2c;
862 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
863 		card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
864 				       BT878_APPERR | BT878_AFBUS;
865 		/* 25,21,14,11,10,9,8,3,2 then
866 		 * 0x33 = 5,4,1,0
867 		 * A_SEL=SML, DA_MLB, DA_SBR,
868 		 * DA_SDR=f, fifo trigger = 32 DWORDS
869 		 * IOM = 0 == audio A/D
870 		 * DPM = 0 == digital audio mode
871 		 * == async data parallel port
872 		 * then 0x33 (13 is set by start_capture)
873 		 * DA_APP = async data parallel port,
874 		 * ACAP_EN = 1,
875 		 * RISC+FIFO ENABLE */
876 		break;
877 
878 	case BTTV_BOARD_PC_HDTV:
879 		card->gpio_mode = 0x0100EC7B;
880 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
881 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
882 		break;
883 
884 	default:
885 		pr_err("Unknown bttv card type: %d\n", sub->core->type);
886 		kfree(card);
887 		return -ENODEV;
888 	}
889 
890 	dprintk("dvb_bt8xx: identified card%d as %s\n", card->bttv_nr, card->card_name);
891 
892 	if (!(bttv_pci_dev = bttv_get_pcidev(card->bttv_nr))) {
893 		pr_err("no pci device for card %d\n", card->bttv_nr);
894 		kfree(card);
895 		return -ENODEV;
896 	}
897 
898 	if (!(card->bt = dvb_bt8xx_878_match(card->bttv_nr, bttv_pci_dev))) {
899 		pr_err("unable to determine DMA core of card %d,\n", card->bttv_nr);
900 		pr_err("if you have the ALSA bt87x audio driver installed, try removing it.\n");
901 
902 		kfree(card);
903 		return -ENODEV;
904 	}
905 
906 	mutex_init(&card->bt->gpio_lock);
907 	card->bt->bttv_nr = sub->core->nr;
908 
909 	if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
910 		kfree(card);
911 		return ret;
912 	}
913 
914 	dev_set_drvdata(&sub->dev, card);
915 	return 0;
916 }
917 
918 static void dvb_bt8xx_remove(struct bttv_sub_device *sub)
919 {
920 	struct dvb_bt8xx_card *card = dev_get_drvdata(&sub->dev);
921 
922 	dprintk("dvb_bt8xx: unloading card%d\n", card->bttv_nr);
923 
924 	bt878_stop(card->bt);
925 	cancel_work_sync(&card->bt->bh_work);
926 	dvb_net_release(&card->dvbnet);
927 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
928 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
929 	dvb_dmxdev_release(&card->dmxdev);
930 	dvb_dmx_release(&card->demux);
931 	if (card->fe) {
932 		dvb_unregister_frontend(card->fe);
933 		dvb_frontend_detach(card->fe);
934 	}
935 	dvb_unregister_adapter(&card->dvb_adapter);
936 
937 	kfree(card);
938 }
939 
940 static struct bttv_sub_driver driver = {
941 	.drv = {
942 		.name		= "dvb-bt8xx",
943 	},
944 	.probe		= dvb_bt8xx_probe,
945 	.remove		= dvb_bt8xx_remove,
946 	/* FIXME:
947 	 * .shutdown	= dvb_bt8xx_shutdown,
948 	 * .suspend	= dvb_bt8xx_suspend,
949 	 * .resume	= dvb_bt8xx_resume,
950 	 */
951 };
952 
953 static int __init dvb_bt8xx_init(void)
954 {
955 	return bttv_sub_register(&driver, "dvb");
956 }
957 
958 static void __exit dvb_bt8xx_exit(void)
959 {
960 	bttv_sub_unregister(&driver);
961 }
962 
963 module_init(dvb_bt8xx_init);
964 module_exit(dvb_bt8xx_exit);
965 
966 MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
967 MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
968 MODULE_LICENSE("GPL");
969