1 /*
2  * Bt8xx based DVB adapter driver
3  *
4  * Copyright (C) 2002,2003 Florian Schirmer <jolt@tuxbox.org>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  */
17 
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19 
20 #include <linux/bitops.h>
21 #include <linux/module.h>
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/device.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/i2c.h>
28 
29 #include <media/dmxdev.h>
30 #include <media/dvbdev.h>
31 #include <media/dvb_demux.h>
32 #include <media/dvb_frontend.h>
33 #include "dvb-bt8xx.h"
34 #include "bt878.h"
35 
36 static int debug;
37 
38 module_param(debug, int, 0644);
39 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
40 
41 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
42 
43 #define dprintk(fmt, arg...) do {				\
44 	if (debug)						\
45 		printk(KERN_DEBUG pr_fmt("%s: " fmt),		\
46 		       __func__, ##arg);			\
47 } while (0)
48 
49 
50 #define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
51 
52 static void dvb_bt8xx_task(unsigned long data)
53 {
54 	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *)data;
55 
56 	dprintk("%d\n", card->bt->finished_block);
57 
58 	while (card->bt->last_block != card->bt->finished_block) {
59 		(card->bt->TS_Size ? dvb_dmx_swfilter_204 : dvb_dmx_swfilter)
60 			(&card->demux,
61 			 &card->bt->buf_cpu[card->bt->last_block *
62 					    card->bt->block_bytes],
63 			 card->bt->block_bytes);
64 		card->bt->last_block = (card->bt->last_block + 1) %
65 					card->bt->block_count;
66 	}
67 }
68 
69 static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
70 {
71 	struct dvb_demux*dvbdmx = dvbdmxfeed->demux;
72 	struct dvb_bt8xx_card *card = dvbdmx->priv;
73 	int rc;
74 
75 	dprintk("dvb_bt8xx: start_feed\n");
76 
77 	if (!dvbdmx->dmx.frontend)
78 		return -EINVAL;
79 
80 	mutex_lock(&card->lock);
81 	card->nfeeds++;
82 	rc = card->nfeeds;
83 	if (card->nfeeds == 1)
84 		bt878_start(card->bt, card->gpio_mode,
85 			    card->op_sync_orin, card->irq_err_ignore);
86 	mutex_unlock(&card->lock);
87 	return rc;
88 }
89 
90 static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
91 {
92 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
93 	struct dvb_bt8xx_card *card = dvbdmx->priv;
94 
95 	dprintk("dvb_bt8xx: stop_feed\n");
96 
97 	if (!dvbdmx->dmx.frontend)
98 		return -EINVAL;
99 
100 	mutex_lock(&card->lock);
101 	card->nfeeds--;
102 	if (card->nfeeds == 0)
103 		bt878_stop(card->bt);
104 	mutex_unlock(&card->lock);
105 
106 	return 0;
107 }
108 
109 static int is_pci_slot_eq(struct pci_dev* adev, struct pci_dev* bdev)
110 {
111 	if ((adev->subsystem_vendor == bdev->subsystem_vendor) &&
112 		(adev->subsystem_device == bdev->subsystem_device) &&
113 		(adev->bus->number == bdev->bus->number) &&
114 		(PCI_SLOT(adev->devfn) == PCI_SLOT(bdev->devfn)))
115 		return 1;
116 	return 0;
117 }
118 
119 static struct bt878 *dvb_bt8xx_878_match(unsigned int bttv_nr,
120 					 struct pci_dev* bttv_pci_dev)
121 {
122 	unsigned int card_nr;
123 
124 	/* Hmm, n squared. Hope n is small */
125 	for (card_nr = 0; card_nr < bt878_num; card_nr++)
126 		if (is_pci_slot_eq(bt878[card_nr].dev, bttv_pci_dev))
127 			return &bt878[card_nr];
128 	return NULL;
129 }
130 
131 static int thomson_dtt7579_demod_init(struct dvb_frontend* fe)
132 {
133 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x38 };
134 	static u8 mt352_reset [] = { 0x50, 0x80 };
135 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
136 	static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0x20 };
137 	static u8 mt352_gpp_ctl_cfg [] = { 0x8C, 0x33 };
138 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
139 
140 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
141 	udelay(2000);
142 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
143 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
144 
145 	mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
146 	mt352_write(fe, mt352_gpp_ctl_cfg, sizeof(mt352_gpp_ctl_cfg));
147 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
148 
149 	return 0;
150 }
151 
152 static int thomson_dtt7579_tuner_calc_regs(struct dvb_frontend *fe, u8* pllbuf, int buf_len)
153 {
154 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
155 	u32 div;
156 	unsigned char bs = 0;
157 	unsigned char cp = 0;
158 
159 	if (buf_len < 5)
160 		return -EINVAL;
161 
162 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
163 
164 	if (c->frequency < 542000000)
165 		cp = 0xb4;
166 	else if (c->frequency < 771000000)
167 		cp = 0xbc;
168 	else
169 		cp = 0xf4;
170 
171 	if (c->frequency == 0)
172 		bs = 0x03;
173 	else if (c->frequency < 443250000)
174 		bs = 0x02;
175 	else
176 		bs = 0x08;
177 
178 	pllbuf[0] = 0x60;
179 	pllbuf[1] = div >> 8;
180 	pllbuf[2] = div & 0xff;
181 	pllbuf[3] = cp;
182 	pllbuf[4] = bs;
183 
184 	return 5;
185 }
186 
187 static struct mt352_config thomson_dtt7579_config = {
188 	.demod_address = 0x0f,
189 	.demod_init = thomson_dtt7579_demod_init,
190 };
191 
192 static struct zl10353_config thomson_dtt7579_zl10353_config = {
193 	.demod_address = 0x0f,
194 };
195 
196 static int cx24108_tuner_set_params(struct dvb_frontend *fe)
197 {
198 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
199 	u32 freq = c->frequency;
200 	int i, a, n, pump;
201 	u32 band, pll;
202 	u32 osci[]={950000,1019000,1075000,1178000,1296000,1432000,
203 		1576000,1718000,1856000,2036000,2150000};
204 	u32 bandsel[]={0,0x00020000,0x00040000,0x00100800,0x00101000,
205 		0x00102000,0x00104000,0x00108000,0x00110000,
206 		0x00120000,0x00140000};
207 
208 	#define XTAL 1011100 /* Hz, really 1.0111 MHz and a /10 prescaler */
209 	dprintk("cx24108 debug: entering SetTunerFreq, freq=%d\n", freq);
210 
211 	/* This is really the bit driving the tuner chip cx24108 */
212 
213 	if (freq<950000)
214 		freq = 950000; /* kHz */
215 	else if (freq>2150000)
216 		freq = 2150000; /* satellite IF is 950..2150MHz */
217 
218 	/* decide which VCO to use for the input frequency */
219 	for(i = 1; (i < ARRAY_SIZE(osci) - 1) && (osci[i] < freq); i++);
220 	dprintk("cx24108 debug: select vco #%d (f=%d)\n", i, freq);
221 	band=bandsel[i];
222 	/* the gain values must be set by SetSymbolrate */
223 	/* compute the pll divider needed, from Conexant data sheet,
224 	   resolved for (n*32+a), remember f(vco) is f(receive) *2 or *4,
225 	   depending on the divider bit. It is set to /4 on the 2 lowest
226 	   bands  */
227 	n=((i<=2?2:1)*freq*10L)/(XTAL/100);
228 	a=n%32; n/=32; if(a==0) n--;
229 	pump=(freq<(osci[i-1]+osci[i])/2);
230 	pll=0xf8000000|
231 	    ((pump?1:2)<<(14+11))|
232 	    ((n&0x1ff)<<(5+11))|
233 	    ((a&0x1f)<<11);
234 	/* everything is shifted left 11 bits to left-align the bits in the
235 	   32bit word. Output to the tuner goes MSB-aligned, after all */
236 	dprintk("cx24108 debug: pump=%d, n=%d, a=%d\n", pump, n, a);
237 	cx24110_pll_write(fe,band);
238 	/* set vga and vca to their widest-band settings, as a precaution.
239 	   SetSymbolrate might not be called to set this up */
240 	cx24110_pll_write(fe,0x500c0000);
241 	cx24110_pll_write(fe,0x83f1f800);
242 	cx24110_pll_write(fe,pll);
243 	//writereg(client,0x56,0x7f);
244 
245 	return 0;
246 }
247 
248 static int pinnsat_tuner_init(struct dvb_frontend* fe)
249 {
250 	struct dvb_bt8xx_card *card = fe->dvb->priv;
251 
252 	bttv_gpio_enable(card->bttv_nr, 1, 1);  /* output */
253 	bttv_write_gpio(card->bttv_nr, 1, 1);   /* relay on */
254 
255 	return 0;
256 }
257 
258 static int pinnsat_tuner_sleep(struct dvb_frontend* fe)
259 {
260 	struct dvb_bt8xx_card *card = fe->dvb->priv;
261 
262 	bttv_write_gpio(card->bttv_nr, 1, 0);   /* relay off */
263 
264 	return 0;
265 }
266 
267 static struct cx24110_config pctvsat_config = {
268 	.demod_address = 0x55,
269 };
270 
271 static int microtune_mt7202dtf_tuner_set_params(struct dvb_frontend *fe)
272 {
273 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
274 	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
275 	u8 cfg, cpump, band_select;
276 	u8 data[4];
277 	u32 div;
278 	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = data, .len = sizeof(data) };
279 
280 	div = (36000000 + c->frequency + 83333) / 166666;
281 	cfg = 0x88;
282 
283 	if (c->frequency < 175000000)
284 		cpump = 2;
285 	else if (c->frequency < 390000000)
286 		cpump = 1;
287 	else if (c->frequency < 470000000)
288 		cpump = 2;
289 	else if (c->frequency < 750000000)
290 		cpump = 2;
291 	else
292 		cpump = 3;
293 
294 	if (c->frequency < 175000000)
295 		band_select = 0x0e;
296 	else if (c->frequency < 470000000)
297 		band_select = 0x05;
298 	else
299 		band_select = 0x03;
300 
301 	data[0] = (div >> 8) & 0x7f;
302 	data[1] = div & 0xff;
303 	data[2] = ((div >> 10) & 0x60) | cfg;
304 	data[3] = (cpump << 6) | band_select;
305 
306 	if (fe->ops.i2c_gate_ctrl)
307 		fe->ops.i2c_gate_ctrl(fe, 1);
308 	i2c_transfer(card->i2c_adapter, &msg, 1);
309 	return (div * 166666 - 36000000);
310 }
311 
312 static int microtune_mt7202dtf_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
313 {
314 	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
315 
316 	return request_firmware(fw, name, &bt->bt->dev->dev);
317 }
318 
319 static const struct sp887x_config microtune_mt7202dtf_config = {
320 	.demod_address = 0x70,
321 	.request_firmware = microtune_mt7202dtf_request_firmware,
322 };
323 
324 static int advbt771_samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
325 {
326 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
327 	static u8 mt352_reset [] = { 0x50, 0x80 };
328 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
329 	static u8 mt352_agc_cfg [] = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
330 				       0x00, 0xFF, 0x00, 0x40, 0x40 };
331 	static u8 mt352_av771_extra[] = { 0xB5, 0x7A };
332 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
333 
334 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
335 	udelay(2000);
336 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
337 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
338 
339 	mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
340 	udelay(2000);
341 	mt352_write(fe, mt352_av771_extra,sizeof(mt352_av771_extra));
342 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
343 
344 	return 0;
345 }
346 
347 static int advbt771_samsung_tdtc9251dh0_tuner_calc_regs(struct dvb_frontend *fe, u8 *pllbuf, int buf_len)
348 {
349 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
350 	u32 div;
351 	unsigned char bs = 0;
352 	unsigned char cp = 0;
353 
354 	if (buf_len < 5) return -EINVAL;
355 
356 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
357 
358 	if (c->frequency < 150000000)
359 		cp = 0xB4;
360 	else if (c->frequency < 173000000)
361 		cp = 0xBC;
362 	else if (c->frequency < 250000000)
363 		cp = 0xB4;
364 	else if (c->frequency < 400000000)
365 		cp = 0xBC;
366 	else if (c->frequency < 420000000)
367 		cp = 0xF4;
368 	else if (c->frequency < 470000000)
369 		cp = 0xFC;
370 	else if (c->frequency < 600000000)
371 		cp = 0xBC;
372 	else if (c->frequency < 730000000)
373 		cp = 0xF4;
374 	else
375 		cp = 0xFC;
376 
377 	if (c->frequency < 150000000)
378 		bs = 0x01;
379 	else if (c->frequency < 173000000)
380 		bs = 0x01;
381 	else if (c->frequency < 250000000)
382 		bs = 0x02;
383 	else if (c->frequency < 400000000)
384 		bs = 0x02;
385 	else if (c->frequency < 420000000)
386 		bs = 0x02;
387 	else if (c->frequency < 470000000)
388 		bs = 0x02;
389 	else
390 		bs = 0x08;
391 
392 	pllbuf[0] = 0x61;
393 	pllbuf[1] = div >> 8;
394 	pllbuf[2] = div & 0xff;
395 	pllbuf[3] = cp;
396 	pllbuf[4] = bs;
397 
398 	return 5;
399 }
400 
401 static struct mt352_config advbt771_samsung_tdtc9251dh0_config = {
402 	.demod_address = 0x0f,
403 	.demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
404 };
405 
406 static struct dst_config dst_config = {
407 	.demod_address = 0x55,
408 };
409 
410 static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
411 {
412 	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
413 
414 	return request_firmware(fw, name, &bt->bt->dev->dev);
415 }
416 
417 static void or51211_setmode(struct dvb_frontend * fe, int mode)
418 {
419 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
420 	bttv_write_gpio(bt->bttv_nr, 0x0002, mode);   /* Reset */
421 	msleep(20);
422 }
423 
424 static void or51211_reset(struct dvb_frontend * fe)
425 {
426 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
427 
428 	/* RESET DEVICE
429 	 * reset is controlled by GPIO-0
430 	 * when set to 0 causes reset and when to 1 for normal op
431 	 * must remain reset for 128 clock cycles on a 50Mhz clock
432 	 * also PRM1 PRM2 & PRM4 are controlled by GPIO-1,GPIO-2 & GPIO-4
433 	 * We assume that the reset has be held low long enough or we
434 	 * have been reset by a power on.  When the driver is unloaded
435 	 * reset set to 0 so if reloaded we have been reset.
436 	 */
437 	/* reset & PRM1,2&4 are outputs */
438 	int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
439 	if (ret != 0)
440 		pr_warn("or51211: Init Error - Can't Reset DVR (%i)\n", ret);
441 	bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000);   /* Reset */
442 	msleep(20);
443 	/* Now set for normal operation */
444 	bttv_write_gpio(bt->bttv_nr, 0x0001F, 0x0001);
445 	/* wait for operation to begin */
446 	msleep(500);
447 }
448 
449 static void or51211_sleep(struct dvb_frontend * fe)
450 {
451 	struct dvb_bt8xx_card *bt = fe->dvb->priv;
452 	bttv_write_gpio(bt->bttv_nr, 0x0001, 0x0000);
453 }
454 
455 static const struct or51211_config or51211_config = {
456 	.demod_address = 0x15,
457 	.request_firmware = or51211_request_firmware,
458 	.setmode = or51211_setmode,
459 	.reset = or51211_reset,
460 	.sleep = or51211_sleep,
461 };
462 
463 static int vp3021_alps_tded4_tuner_set_params(struct dvb_frontend *fe)
464 {
465 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
466 	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
467 	u8 buf[4];
468 	u32 div;
469 	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };
470 
471 	div = (c->frequency + 36166667) / 166667;
472 
473 	buf[0] = (div >> 8) & 0x7F;
474 	buf[1] = div & 0xFF;
475 	buf[2] = 0x85;
476 	if ((c->frequency >= 47000000) && (c->frequency < 153000000))
477 		buf[3] = 0x01;
478 	else if ((c->frequency >= 153000000) && (c->frequency < 430000000))
479 		buf[3] = 0x02;
480 	else if ((c->frequency >= 430000000) && (c->frequency < 824000000))
481 		buf[3] = 0x0C;
482 	else if ((c->frequency >= 824000000) && (c->frequency < 863000000))
483 		buf[3] = 0x8C;
484 	else
485 		return -EINVAL;
486 
487 	if (fe->ops.i2c_gate_ctrl)
488 		fe->ops.i2c_gate_ctrl(fe, 1);
489 	i2c_transfer(card->i2c_adapter, &msg, 1);
490 	return 0;
491 }
492 
493 static struct nxt6000_config vp3021_alps_tded4_config = {
494 	.demod_address = 0x0a,
495 	.clock_inversion = 1,
496 };
497 
498 static int digitv_alps_tded4_demod_init(struct dvb_frontend* fe)
499 {
500 	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
501 	static u8 mt352_reset [] = { 0x50, 0x80 };
502 	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
503 	static u8 mt352_agc_cfg [] = { 0x67, 0x20, 0xa0 };
504 	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
505 
506 	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
507 	udelay(2000);
508 	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
509 	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
510 	mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
511 	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
512 
513 	return 0;
514 }
515 
516 static int digitv_alps_tded4_tuner_calc_regs(struct dvb_frontend *fe,  u8 *pllbuf, int buf_len)
517 {
518 	u32 div;
519 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
520 
521 	if (buf_len < 5)
522 		return -EINVAL;
523 
524 	div = (((c->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
525 
526 	pllbuf[0] = 0x61;
527 	pllbuf[1] = (div >> 8) & 0x7F;
528 	pllbuf[2] = div & 0xFF;
529 	pllbuf[3] = 0x85;
530 
531 	dprintk("frequency %u, div %u\n", c->frequency, div);
532 
533 	if (c->frequency < 470000000)
534 		pllbuf[4] = 0x02;
535 	else if (c->frequency > 823000000)
536 		pllbuf[4] = 0x88;
537 	else
538 		pllbuf[4] = 0x08;
539 
540 	if (c->bandwidth_hz == 8000000)
541 		pllbuf[4] |= 0x04;
542 
543 	return 5;
544 }
545 
546 static void digitv_alps_tded4_reset(struct dvb_bt8xx_card *bt)
547 {
548 	/*
549 	 * Reset the frontend, must be called before trying
550 	 * to initialise the MT352 or mt352_attach
551 	 * will fail. Same goes for the nxt6000 frontend.
552 	 *
553 	 */
554 
555 	int ret = bttv_gpio_enable(bt->bttv_nr, 0x08, 0x08);
556 	if (ret != 0)
557 		pr_warn("digitv_alps_tded4: Init Error - Can't Reset DVR (%i)\n",
558 			ret);
559 
560 	/* Pulse the reset line */
561 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
562 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x00); /* Low  */
563 	msleep(100);
564 
565 	bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
566 }
567 
568 static struct mt352_config digitv_alps_tded4_config = {
569 	.demod_address = 0x0a,
570 	.demod_init = digitv_alps_tded4_demod_init,
571 };
572 
573 static struct lgdt330x_config tdvs_tua6034_config = {
574 	.demod_chip       = LGDT3303,
575 	.serial_mpeg      = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
576 };
577 
578 static void lgdt330x_reset(struct dvb_bt8xx_card *bt)
579 {
580 	/* Set pin 27 of the lgdt3303 chip high to reset the frontend */
581 
582 	/* Pulse the reset line */
583 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
584 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000000); /* Low  */
585 	msleep(100);
586 
587 	bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
588 	msleep(100);
589 }
590 
591 static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
592 {
593 	struct dst_state* state = NULL;
594 
595 	switch(type) {
596 	case BTTV_BOARD_DVICO_DVBT_LITE:
597 		card->fe = dvb_attach(mt352_attach, &thomson_dtt7579_config, card->i2c_adapter);
598 
599 		if (card->fe == NULL)
600 			card->fe = dvb_attach(zl10353_attach, &thomson_dtt7579_zl10353_config,
601 						  card->i2c_adapter);
602 
603 		if (card->fe != NULL) {
604 			card->fe->ops.tuner_ops.calc_regs = thomson_dtt7579_tuner_calc_regs;
605 			card->fe->ops.info.frequency_min_hz = 174 * MHz;
606 			card->fe->ops.info.frequency_max_hz = 862 * MHz;
607 		}
608 		break;
609 
610 	case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
611 		lgdt330x_reset(card);
612 		card->fe = dvb_attach(lgdt330x_attach, &tdvs_tua6034_config,
613 				      0x0e, card->i2c_adapter);
614 		if (card->fe != NULL) {
615 			dvb_attach(simple_tuner_attach, card->fe,
616 				   card->i2c_adapter, 0x61,
617 				   TUNER_LG_TDVS_H06XF);
618 			dprintk("dvb_bt8xx: lgdt330x detected\n");
619 		}
620 		break;
621 
622 	case BTTV_BOARD_NEBULA_DIGITV:
623 		/*
624 		 * It is possible to determine the correct frontend using the I2C bus (see the Nebula SDK);
625 		 * this would be a cleaner solution than trying each frontend in turn.
626 		 */
627 
628 		/* Old Nebula (marked (c)2003 on high profile pci card) has nxt6000 demod */
629 		digitv_alps_tded4_reset(card);
630 		card->fe = dvb_attach(nxt6000_attach, &vp3021_alps_tded4_config, card->i2c_adapter);
631 		if (card->fe != NULL) {
632 			card->fe->ops.tuner_ops.set_params = vp3021_alps_tded4_tuner_set_params;
633 			dprintk("dvb_bt8xx: an nxt6000 was detected on your digitv card\n");
634 			break;
635 		}
636 
637 		/* New Nebula (marked (c)2005 on low profile pci card) has mt352 demod */
638 		digitv_alps_tded4_reset(card);
639 		card->fe = dvb_attach(mt352_attach, &digitv_alps_tded4_config, card->i2c_adapter);
640 
641 		if (card->fe != NULL) {
642 			card->fe->ops.tuner_ops.calc_regs = digitv_alps_tded4_tuner_calc_regs;
643 			dprintk("dvb_bt8xx: an mt352 was detected on your digitv card\n");
644 		}
645 		break;
646 
647 	case BTTV_BOARD_AVDVBT_761:
648 		card->fe = dvb_attach(sp887x_attach, &microtune_mt7202dtf_config, card->i2c_adapter);
649 		if (card->fe) {
650 			card->fe->ops.tuner_ops.set_params = microtune_mt7202dtf_tuner_set_params;
651 		}
652 		break;
653 
654 	case BTTV_BOARD_AVDVBT_771:
655 		card->fe = dvb_attach(mt352_attach, &advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
656 		if (card->fe != NULL) {
657 			card->fe->ops.tuner_ops.calc_regs = advbt771_samsung_tdtc9251dh0_tuner_calc_regs;
658 			card->fe->ops.info.frequency_min_hz = 174 * MHz;
659 			card->fe->ops.info.frequency_max_hz = 862 * MHz;
660 		}
661 		break;
662 
663 	case BTTV_BOARD_TWINHAN_DST:
664 		/*	DST is not a frontend driver !!!		*/
665 		state = kmalloc(sizeof (struct dst_state), GFP_KERNEL);
666 		if (!state) {
667 			pr_err("No memory\n");
668 			break;
669 		}
670 		/*	Setup the Card					*/
671 		state->config = &dst_config;
672 		state->i2c = card->i2c_adapter;
673 		state->bt = card->bt;
674 		state->dst_ca = NULL;
675 		/*	DST is not a frontend, attaching the ASIC	*/
676 		if (dvb_attach(dst_attach, state, &card->dvb_adapter) == NULL) {
677 			pr_err("%s: Could not find a Twinhan DST\n", __func__);
678 			kfree(state);
679 			break;
680 		}
681 		/*	Attach other DST peripherals if any		*/
682 		/*	Conditional Access device			*/
683 		card->fe = &state->frontend;
684 		if (state->dst_hw_cap & DST_TYPE_HAS_CA)
685 			dvb_attach(dst_ca_attach, state, &card->dvb_adapter);
686 		break;
687 
688 	case BTTV_BOARD_PINNACLESAT:
689 		card->fe = dvb_attach(cx24110_attach, &pctvsat_config, card->i2c_adapter);
690 		if (card->fe) {
691 			card->fe->ops.tuner_ops.init = pinnsat_tuner_init;
692 			card->fe->ops.tuner_ops.sleep = pinnsat_tuner_sleep;
693 			card->fe->ops.tuner_ops.set_params = cx24108_tuner_set_params;
694 		}
695 		break;
696 
697 	case BTTV_BOARD_PC_HDTV:
698 		card->fe = dvb_attach(or51211_attach, &or51211_config, card->i2c_adapter);
699 		if (card->fe != NULL)
700 			dvb_attach(simple_tuner_attach, card->fe,
701 				   card->i2c_adapter, 0x61,
702 				   TUNER_PHILIPS_FCV1236D);
703 		break;
704 	}
705 
706 	if (card->fe == NULL)
707 		pr_err("A frontend driver was not found for device [%04x:%04x] subsystem [%04x:%04x]\n",
708 		       card->bt->dev->vendor,
709 		       card->bt->dev->device,
710 		       card->bt->dev->subsystem_vendor,
711 		       card->bt->dev->subsystem_device);
712 	else
713 		if (dvb_register_frontend(&card->dvb_adapter, card->fe)) {
714 			pr_err("Frontend registration failed!\n");
715 			dvb_frontend_detach(card->fe);
716 			card->fe = NULL;
717 		}
718 }
719 
720 static int dvb_bt8xx_load_card(struct dvb_bt8xx_card *card, u32 type)
721 {
722 	int result;
723 
724 	result = dvb_register_adapter(&card->dvb_adapter, card->card_name,
725 				      THIS_MODULE, &card->bt->dev->dev,
726 				      adapter_nr);
727 	if (result < 0) {
728 		pr_err("dvb_register_adapter failed (errno = %d)\n", result);
729 		return result;
730 	}
731 	card->dvb_adapter.priv = card;
732 
733 	card->bt->adapter = card->i2c_adapter;
734 
735 	memset(&card->demux, 0, sizeof(struct dvb_demux));
736 
737 	card->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
738 
739 	card->demux.priv = card;
740 	card->demux.filternum = 256;
741 	card->demux.feednum = 256;
742 	card->demux.start_feed = dvb_bt8xx_start_feed;
743 	card->demux.stop_feed = dvb_bt8xx_stop_feed;
744 	card->demux.write_to_decoder = NULL;
745 
746 	result = dvb_dmx_init(&card->demux);
747 	if (result < 0) {
748 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
749 		goto err_unregister_adaptor;
750 	}
751 
752 	card->dmxdev.filternum = 256;
753 	card->dmxdev.demux = &card->demux.dmx;
754 	card->dmxdev.capabilities = 0;
755 
756 	result = dvb_dmxdev_init(&card->dmxdev, &card->dvb_adapter);
757 	if (result < 0) {
758 		pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
759 		goto err_dmx_release;
760 	}
761 
762 	card->fe_hw.source = DMX_FRONTEND_0;
763 
764 	result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_hw);
765 	if (result < 0) {
766 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
767 		goto err_dmxdev_release;
768 	}
769 
770 	card->fe_mem.source = DMX_MEMORY_FE;
771 
772 	result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_mem);
773 	if (result < 0) {
774 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
775 		goto err_remove_hw_frontend;
776 	}
777 
778 	result = card->demux.dmx.connect_frontend(&card->demux.dmx, &card->fe_hw);
779 	if (result < 0) {
780 		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
781 		goto err_remove_mem_frontend;
782 	}
783 
784 	result = dvb_net_init(&card->dvb_adapter, &card->dvbnet, &card->demux.dmx);
785 	if (result < 0) {
786 		pr_err("dvb_net_init failed (errno = %d)\n", result);
787 		goto err_disconnect_frontend;
788 	}
789 
790 	tasklet_init(&card->bt->tasklet, dvb_bt8xx_task, (unsigned long) card);
791 
792 	frontend_init(card, type);
793 
794 	return 0;
795 
796 err_disconnect_frontend:
797 	card->demux.dmx.disconnect_frontend(&card->demux.dmx);
798 err_remove_mem_frontend:
799 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
800 err_remove_hw_frontend:
801 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
802 err_dmxdev_release:
803 	dvb_dmxdev_release(&card->dmxdev);
804 err_dmx_release:
805 	dvb_dmx_release(&card->demux);
806 err_unregister_adaptor:
807 	dvb_unregister_adapter(&card->dvb_adapter);
808 	return result;
809 }
810 
811 static int dvb_bt8xx_probe(struct bttv_sub_device *sub)
812 {
813 	struct dvb_bt8xx_card *card;
814 	struct pci_dev* bttv_pci_dev;
815 	int ret;
816 
817 	if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
818 		return -ENOMEM;
819 
820 	mutex_init(&card->lock);
821 	card->bttv_nr = sub->core->nr;
822 	strscpy(card->card_name, sub->core->v4l2_dev.name,
823 		sizeof(card->card_name));
824 	card->i2c_adapter = &sub->core->i2c_adap;
825 
826 	switch(sub->core->type) {
827 	case BTTV_BOARD_PINNACLESAT:
828 		card->gpio_mode = 0x0400c060;
829 		/* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
830 			      BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
831 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
832 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
833 		break;
834 
835 	case BTTV_BOARD_DVICO_DVBT_LITE:
836 		card->gpio_mode = 0x0400C060;
837 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
838 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
839 		/* 26, 15, 14, 6, 5
840 		 * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
841 		 * DA_APP(parallel) */
842 		break;
843 
844 	case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
845 		card->gpio_mode = 0x0400c060;
846 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
847 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
848 		break;
849 
850 	case BTTV_BOARD_NEBULA_DIGITV:
851 	case BTTV_BOARD_AVDVBT_761:
852 		card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
853 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
854 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
855 		/* A_PWRDN DA_SBR DA_APP (high speed serial) */
856 		break;
857 
858 	case BTTV_BOARD_AVDVBT_771: //case 0x07711461:
859 		card->gpio_mode = 0x0400402B;
860 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
861 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
862 		/* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
863 		break;
864 
865 	case BTTV_BOARD_TWINHAN_DST:
866 		card->gpio_mode = 0x2204f2c;
867 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
868 		card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
869 				       BT878_APPERR | BT878_AFBUS;
870 		/* 25,21,14,11,10,9,8,3,2 then
871 		 * 0x33 = 5,4,1,0
872 		 * A_SEL=SML, DA_MLB, DA_SBR,
873 		 * DA_SDR=f, fifo trigger = 32 DWORDS
874 		 * IOM = 0 == audio A/D
875 		 * DPM = 0 == digital audio mode
876 		 * == async data parallel port
877 		 * then 0x33 (13 is set by start_capture)
878 		 * DA_APP = async data parallel port,
879 		 * ACAP_EN = 1,
880 		 * RISC+FIFO ENABLE */
881 		break;
882 
883 	case BTTV_BOARD_PC_HDTV:
884 		card->gpio_mode = 0x0100EC7B;
885 		card->op_sync_orin = BT878_RISC_SYNC_MASK;
886 		card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
887 		break;
888 
889 	default:
890 		pr_err("Unknown bttv card type: %d\n", sub->core->type);
891 		kfree(card);
892 		return -ENODEV;
893 	}
894 
895 	dprintk("dvb_bt8xx: identified card%d as %s\n", card->bttv_nr, card->card_name);
896 
897 	if (!(bttv_pci_dev = bttv_get_pcidev(card->bttv_nr))) {
898 		pr_err("no pci device for card %d\n", card->bttv_nr);
899 		kfree(card);
900 		return -ENODEV;
901 	}
902 
903 	if (!(card->bt = dvb_bt8xx_878_match(card->bttv_nr, bttv_pci_dev))) {
904 		pr_err("unable to determine DMA core of card %d,\n", card->bttv_nr);
905 		pr_err("if you have the ALSA bt87x audio driver installed, try removing it.\n");
906 
907 		kfree(card);
908 		return -ENODEV;
909 	}
910 
911 	mutex_init(&card->bt->gpio_lock);
912 	card->bt->bttv_nr = sub->core->nr;
913 
914 	if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
915 		kfree(card);
916 		return ret;
917 	}
918 
919 	dev_set_drvdata(&sub->dev, card);
920 	return 0;
921 }
922 
923 static void dvb_bt8xx_remove(struct bttv_sub_device *sub)
924 {
925 	struct dvb_bt8xx_card *card = dev_get_drvdata(&sub->dev);
926 
927 	dprintk("dvb_bt8xx: unloading card%d\n", card->bttv_nr);
928 
929 	bt878_stop(card->bt);
930 	tasklet_kill(&card->bt->tasklet);
931 	dvb_net_release(&card->dvbnet);
932 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
933 	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
934 	dvb_dmxdev_release(&card->dmxdev);
935 	dvb_dmx_release(&card->demux);
936 	if (card->fe) {
937 		dvb_unregister_frontend(card->fe);
938 		dvb_frontend_detach(card->fe);
939 	}
940 	dvb_unregister_adapter(&card->dvb_adapter);
941 
942 	kfree(card);
943 }
944 
945 static struct bttv_sub_driver driver = {
946 	.drv = {
947 		.name		= "dvb-bt8xx",
948 	},
949 	.probe		= dvb_bt8xx_probe,
950 	.remove		= dvb_bt8xx_remove,
951 	/* FIXME:
952 	 * .shutdown	= dvb_bt8xx_shutdown,
953 	 * .suspend	= dvb_bt8xx_suspend,
954 	 * .resume	= dvb_bt8xx_resume,
955 	 */
956 };
957 
958 static int __init dvb_bt8xx_init(void)
959 {
960 	return bttv_sub_register(&driver, "dvb");
961 }
962 
963 static void __exit dvb_bt8xx_exit(void)
964 {
965 	bttv_sub_unregister(&driver);
966 }
967 
968 module_init(dvb_bt8xx_init);
969 module_exit(dvb_bt8xx_exit);
970 
971 MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
972 MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
973 MODULE_LICENSE("GPL");
974