[PATCH] DVB: Fix locking to prevent Oops on SMP systems
[linux-2.6] / drivers / media / dvb / bt8xx / dvb-bt8xx.c
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  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  *
20  */
21
22 #include <linux/bitops.h>
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/init.h>
26 #include <linux/device.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include <linux/i2c.h>
30
31 #include "dmxdev.h"
32 #include "dvbdev.h"
33 #include "dvb_demux.h"
34 #include "dvb_frontend.h"
35 #include "dvb-bt8xx.h"
36 #include "bt878.h"
37 #include "dvb-pll.h"
38
39 static int debug;
40
41 module_param(debug, int, 0644);
42 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
43
44 #define dprintk( args... ) \
45         do \
46                 if (debug) printk(KERN_DEBUG args); \
47         while (0)
48
49 #define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
50
51 static void dvb_bt8xx_task(unsigned long data)
52 {
53         struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *)data;
54
55         //printk("%d ", card->bt->finished_block);
56
57         while (card->bt->last_block != card->bt->finished_block) {
58                 (card->bt->TS_Size ? dvb_dmx_swfilter_204 : dvb_dmx_swfilter)
59                         (&card->demux,
60                          &card->bt->buf_cpu[card->bt->last_block *
61                                             card->bt->block_bytes],
62                          card->bt->block_bytes);
63                 card->bt->last_block = (card->bt->last_block + 1) %
64                                         card->bt->block_count;
65         }
66 }
67
68 static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
69 {
70         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
71         struct dvb_bt8xx_card *card = dvbdmx->priv;
72         int rc;
73
74         dprintk("dvb_bt8xx: start_feed\n");
75
76         if (!dvbdmx->dmx.frontend)
77                 return -EINVAL;
78
79         down(&card->lock);
80         card->nfeeds++;
81         rc = card->nfeeds;
82         if (card->nfeeds == 1)
83                 bt878_start(card->bt, card->gpio_mode,
84                             card->op_sync_orin, card->irq_err_ignore);
85         up(&card->lock);
86         return rc;
87 }
88
89 static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
90 {
91         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
92         struct dvb_bt8xx_card *card = dvbdmx->priv;
93
94         dprintk("dvb_bt8xx: stop_feed\n");
95
96         if (!dvbdmx->dmx.frontend)
97                 return -EINVAL;
98
99         down(&card->lock);
100         card->nfeeds--;
101         if (card->nfeeds == 0)
102                 bt878_stop(card->bt);
103         up(&card->lock);
104
105         return 0;
106 }
107
108 static int is_pci_slot_eq(struct pci_dev* adev, struct pci_dev* bdev)
109 {
110         if ((adev->subsystem_vendor == bdev->subsystem_vendor) &&
111                 (adev->subsystem_device == bdev->subsystem_device) &&
112                 (adev->bus->number == bdev->bus->number) &&
113                 (PCI_SLOT(adev->devfn) == PCI_SLOT(bdev->devfn)))
114                 return 1;
115         return 0;
116 }
117
118 static struct bt878 __init *dvb_bt8xx_878_match(unsigned int bttv_nr, struct pci_dev* bttv_pci_dev)
119 {
120         unsigned int card_nr;
121
122         /* Hmm, n squared. Hope n is small */
123         for (card_nr = 0; card_nr < bt878_num; card_nr++)
124                 if (is_pci_slot_eq(bt878[card_nr].dev, bttv_pci_dev))
125                         return &bt878[card_nr];
126         return NULL;
127 }
128
129 static int thomson_dtt7579_demod_init(struct dvb_frontend* fe)
130 {
131         static u8 mt352_clock_config [] = { 0x89, 0x38, 0x38 };
132         static u8 mt352_reset [] = { 0x50, 0x80 };
133         static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
134         static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0x20 };
135         static u8 mt352_gpp_ctl_cfg [] = { 0x8C, 0x33 };
136         static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
137
138         mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
139         udelay(2000);
140         mt352_write(fe, mt352_reset, sizeof(mt352_reset));
141         mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
142
143         mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
144         mt352_write(fe, mt352_gpp_ctl_cfg, sizeof(mt352_gpp_ctl_cfg));
145         mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
146
147         return 0;
148 }
149
150 static int thomson_dtt7579_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
151 {
152         u32 div;
153         unsigned char bs = 0;
154         unsigned char cp = 0;
155
156         div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
157
158         if (params->frequency < 542000000)
159                 cp = 0xb4;
160         else if (params->frequency < 771000000)
161                 cp = 0xbc;
162         else
163                 cp = 0xf4;
164
165         if (params->frequency == 0)
166                 bs = 0x03;
167         else if (params->frequency < 443250000)
168                 bs = 0x02;
169         else
170                 bs = 0x08;
171
172         pllbuf[0] = 0xc0; // Note: non-linux standard PLL i2c address
173         pllbuf[1] = div >> 8;
174         pllbuf[2] = div & 0xff;
175         pllbuf[3] = cp;
176         pllbuf[4] = bs;
177
178         return 0;
179 }
180
181 static struct mt352_config thomson_dtt7579_config = {
182         .demod_address = 0x0f,
183         .demod_init = thomson_dtt7579_demod_init,
184         .pll_set = thomson_dtt7579_pll_set,
185 };
186
187 static int cx24108_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
188 {
189         u32 freq = params->frequency;
190
191         int i, a, n, pump;
192         u32 band, pll;
193
194         u32 osci[]={950000,1019000,1075000,1178000,1296000,1432000,
195                 1576000,1718000,1856000,2036000,2150000};
196         u32 bandsel[]={0,0x00020000,0x00040000,0x00100800,0x00101000,
197                 0x00102000,0x00104000,0x00108000,0x00110000,
198                 0x00120000,0x00140000};
199
200         #define XTAL 1011100 /* Hz, really 1.0111 MHz and a /10 prescaler */
201         printk("cx24108 debug: entering SetTunerFreq, freq=%d\n",freq);
202
203         /* This is really the bit driving the tuner chip cx24108 */
204
205         if (freq<950000)
206                 freq = 950000; /* kHz */
207         else if (freq>2150000)
208                 freq = 2150000; /* satellite IF is 950..2150MHz */
209
210         /* decide which VCO to use for the input frequency */
211         for(i=1;(i<sizeof(osci)/sizeof(osci[0]))&&(osci[i]<freq);i++);
212         printk("cx24108 debug: select vco #%d (f=%d)\n",i,freq);
213         band=bandsel[i];
214         /* the gain values must be set by SetSymbolrate */
215         /* compute the pll divider needed, from Conexant data sheet,
216            resolved for (n*32+a), remember f(vco) is f(receive) *2 or *4,
217            depending on the divider bit. It is set to /4 on the 2 lowest
218            bands  */
219         n=((i<=2?2:1)*freq*10L)/(XTAL/100);
220         a=n%32; n/=32; if(a==0) n--;
221         pump=(freq<(osci[i-1]+osci[i])/2);
222         pll=0xf8000000|
223             ((pump?1:2)<<(14+11))|
224             ((n&0x1ff)<<(5+11))|
225             ((a&0x1f)<<11);
226         /* everything is shifted left 11 bits to left-align the bits in the
227            32bit word. Output to the tuner goes MSB-aligned, after all */
228         printk("cx24108 debug: pump=%d, n=%d, a=%d\n",pump,n,a);
229         cx24110_pll_write(fe,band);
230         /* set vga and vca to their widest-band settings, as a precaution.
231            SetSymbolrate might not be called to set this up */
232         cx24110_pll_write(fe,0x500c0000);
233         cx24110_pll_write(fe,0x83f1f800);
234         cx24110_pll_write(fe,pll);
235         //writereg(client,0x56,0x7f);
236
237         return 0;
238 }
239
240 static int pinnsat_pll_init(struct dvb_frontend* fe)
241 {
242         return 0;
243 }
244
245 static struct cx24110_config pctvsat_config = {
246         .demod_address = 0x55,
247         .pll_init = pinnsat_pll_init,
248         .pll_set = cx24108_pll_set,
249 };
250
251 static int microtune_mt7202dtf_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
252 {
253         struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
254         u8 cfg, cpump, band_select;
255         u8 data[4];
256         u32 div;
257         struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = data, .len = sizeof(data) };
258
259         div = (36000000 + params->frequency + 83333) / 166666;
260         cfg = 0x88;
261
262         if (params->frequency < 175000000)
263                 cpump = 2;
264         else if (params->frequency < 390000000)
265                 cpump = 1;
266         else if (params->frequency < 470000000)
267                 cpump = 2;
268         else if (params->frequency < 750000000)
269                 cpump = 2;
270         else
271                 cpump = 3;
272
273         if (params->frequency < 175000000)
274                 band_select = 0x0e;
275         else if (params->frequency < 470000000)
276                 band_select = 0x05;
277         else
278                 band_select = 0x03;
279
280         data[0] = (div >> 8) & 0x7f;
281         data[1] = div & 0xff;
282         data[2] = ((div >> 10) & 0x60) | cfg;
283         data[3] = (cpump << 6) | band_select;
284
285         i2c_transfer(card->i2c_adapter, &msg, 1);
286         return (div * 166666 - 36000000);
287 }
288
289 static int microtune_mt7202dtf_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
290 {
291         struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
292
293         return request_firmware(fw, name, &bt->bt->dev->dev);
294 }
295
296 static struct sp887x_config microtune_mt7202dtf_config = {
297         .demod_address = 0x70,
298         .pll_set = microtune_mt7202dtf_pll_set,
299         .request_firmware = microtune_mt7202dtf_request_firmware,
300 };
301
302 static int advbt771_samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
303 {
304         static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
305         static u8 mt352_reset [] = { 0x50, 0x80 };
306         static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
307         static u8 mt352_agc_cfg [] = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
308                                        0x00, 0xFF, 0x00, 0x40, 0x40 };
309         static u8 mt352_av771_extra[] = { 0xB5, 0x7A };
310         static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
311
312         mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
313         udelay(2000);
314         mt352_write(fe, mt352_reset, sizeof(mt352_reset));
315         mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
316
317         mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
318         udelay(2000);
319         mt352_write(fe, mt352_av771_extra,sizeof(mt352_av771_extra));
320         mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
321
322         return 0;
323 }
324
325 static int advbt771_samsung_tdtc9251dh0_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
326 {
327         u32 div;
328         unsigned char bs = 0;
329         unsigned char cp = 0;
330
331         div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
332
333         if (params->frequency < 150000000)
334                 cp = 0xB4;
335         else if (params->frequency < 173000000)
336                 cp = 0xBC;
337         else if (params->frequency < 250000000)
338                 cp = 0xB4;
339         else if (params->frequency < 400000000)
340                 cp = 0xBC;
341         else if (params->frequency < 420000000)
342                 cp = 0xF4;
343         else if (params->frequency < 470000000)
344                 cp = 0xFC;
345         else if (params->frequency < 600000000)
346                 cp = 0xBC;
347         else if (params->frequency < 730000000)
348                 cp = 0xF4;
349         else
350                 cp = 0xFC;
351
352         if (params->frequency < 150000000)
353                 bs = 0x01;
354         else if (params->frequency < 173000000)
355                 bs = 0x01;
356         else if (params->frequency < 250000000)
357                 bs = 0x02;
358         else if (params->frequency < 400000000)
359                 bs = 0x02;
360         else if (params->frequency < 420000000)
361                 bs = 0x02;
362         else if (params->frequency < 470000000)
363                 bs = 0x02;
364         else if (params->frequency < 600000000)
365                 bs = 0x08;
366         else if (params->frequency < 730000000)
367                 bs = 0x08;
368         else
369                 bs = 0x08;
370
371         pllbuf[0] = 0xc2; // Note: non-linux standard PLL i2c address
372         pllbuf[1] = div >> 8;
373         pllbuf[2] = div & 0xff;
374         pllbuf[3] = cp;
375         pllbuf[4] = bs;
376
377         return 0;
378 }
379
380 static struct mt352_config advbt771_samsung_tdtc9251dh0_config = {
381         .demod_address = 0x0f,
382         .demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
383         .pll_set = advbt771_samsung_tdtc9251dh0_pll_set,
384 };
385
386 static struct dst_config dst_config = {
387         .demod_address = 0x55,
388 };
389
390 static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
391 {
392         struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
393
394         return request_firmware(fw, name, &bt->bt->dev->dev);
395 }
396
397 static void or51211_setmode(struct dvb_frontend * fe, int mode)
398 {
399         struct dvb_bt8xx_card *bt = fe->dvb->priv;
400         bttv_write_gpio(bt->bttv_nr, 0x0002, mode);   /* Reset */
401         msleep(20);
402 }
403
404 static void or51211_reset(struct dvb_frontend * fe)
405 {
406         struct dvb_bt8xx_card *bt = fe->dvb->priv;
407
408         /* RESET DEVICE
409          * reset is controled by GPIO-0
410          * when set to 0 causes reset and when to 1 for normal op
411          * must remain reset for 128 clock cycles on a 50Mhz clock
412          * also PRM1 PRM2 & PRM4 are controled by GPIO-1,GPIO-2 & GPIO-4
413          * We assume that the reset has be held low long enough or we
414          * have been reset by a power on.  When the driver is unloaded
415          * reset set to 0 so if reloaded we have been reset.
416          */
417         /* reset & PRM1,2&4 are outputs */
418         int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
419         if (ret != 0)
420                 printk(KERN_WARNING "or51211: Init Error - Can't Reset DVR (%i)\n", ret);
421         bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000);   /* Reset */
422         msleep(20);
423         /* Now set for normal operation */
424         bttv_write_gpio(bt->bttv_nr, 0x0001F, 0x0001);
425         /* wait for operation to begin */
426         msleep(500);
427 }
428
429 static void or51211_sleep(struct dvb_frontend * fe)
430 {
431         struct dvb_bt8xx_card *bt = fe->dvb->priv;
432         bttv_write_gpio(bt->bttv_nr, 0x0001, 0x0000);
433 }
434
435 static struct or51211_config or51211_config = {
436         .demod_address = 0x15,
437         .request_firmware = or51211_request_firmware,
438         .setmode = or51211_setmode,
439         .reset = or51211_reset,
440         .sleep = or51211_sleep,
441 };
442
443 static int vp3021_alps_tded4_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
444 {
445         struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
446         u8 buf[4];
447         u32 div;
448         struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };
449
450         div = (params->frequency + 36166667) / 166667;
451
452         buf[0] = (div >> 8) & 0x7F;
453         buf[1] = div & 0xFF;
454         buf[2] = 0x85;
455         if ((params->frequency >= 47000000) && (params->frequency < 153000000))
456                 buf[3] = 0x01;
457         else if ((params->frequency >= 153000000) && (params->frequency < 430000000))
458                 buf[3] = 0x02;
459         else if ((params->frequency >= 430000000) && (params->frequency < 824000000))
460                 buf[3] = 0x0C;
461         else if ((params->frequency >= 824000000) && (params->frequency < 863000000))
462                 buf[3] = 0x8C;
463         else
464                 return -EINVAL;
465
466         i2c_transfer(card->i2c_adapter, &msg, 1);
467         return 0;
468 }
469
470 static struct nxt6000_config vp3021_alps_tded4_config = {
471         .demod_address = 0x0a,
472         .clock_inversion = 1,
473         .pll_set = vp3021_alps_tded4_pll_set,
474 };
475
476 static int digitv_alps_tded4_demod_init(struct dvb_frontend* fe)
477 {
478         static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
479         static u8 mt352_reset [] = { 0x50, 0x80 };
480         static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
481         static u8 mt352_agc_cfg [] = { 0x67, 0x20, 0xa0 };
482         static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
483
484         mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
485         udelay(2000);
486         mt352_write(fe, mt352_reset, sizeof(mt352_reset));
487         mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
488         mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
489         mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
490
491         return 0;
492 }
493
494 static int digitv_alps_tded4_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
495 {
496         u32 div;
497         struct dvb_ofdm_parameters *op = &params->u.ofdm;
498
499         div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
500
501         pllbuf[0] = 0xc2;
502         pllbuf[1] = (div >> 8) & 0x7F;
503         pllbuf[2] = div & 0xFF;
504         pllbuf[3] = 0x85;
505
506         dprintk("frequency %u, div %u\n", params->frequency, div);
507
508         if (params->frequency < 470000000)
509                 pllbuf[4] = 0x02;
510         else if (params->frequency > 823000000)
511                 pllbuf[4] = 0x88;
512         else
513                 pllbuf[4] = 0x08;
514
515         if (op->bandwidth == 8)
516                 pllbuf[4] |= 0x04;
517
518         return 0;
519 }
520
521 static void digitv_alps_tded4_reset(struct dvb_bt8xx_card *bt)
522 {
523         /*
524          * Reset the frontend, must be called before trying
525          * to initialise the MT352 or mt352_attach
526          * will fail. Same goes for the nxt6000 frontend.
527          *
528          */
529
530         int ret = bttv_gpio_enable(bt->bttv_nr, 0x08, 0x08);
531         if (ret != 0)
532                 printk(KERN_WARNING "digitv_alps_tded4: Init Error - Can't Reset DVR (%i)\n", ret);
533
534         /* Pulse the reset line */
535         bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
536         bttv_write_gpio(bt->bttv_nr, 0x08, 0x00); /* Low  */
537         msleep(100);
538
539         bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
540 }
541
542 static struct mt352_config digitv_alps_tded4_config = {
543         .demod_address = 0x0a,
544         .demod_init = digitv_alps_tded4_demod_init,
545         .pll_set = digitv_alps_tded4_pll_set,
546 };
547
548 static int tdvs_tua6034_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
549 {
550         struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
551         u8 buf[4];
552         struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
553         int err;
554
555         dvb_pll_configure(&dvb_pll_tdvs_tua6034, buf, params->frequency, 0);
556         dprintk("%s: tuner at 0x%02x bytes: 0x%02x 0x%02x 0x%02x 0x%02x\n",
557                 __FUNCTION__, msg.addr, buf[0],buf[1],buf[2],buf[3]);
558         if ((err = i2c_transfer(card->i2c_adapter, &msg, 1)) != 1) {
559                 printk(KERN_WARNING "dvb-bt8xx: %s error "
560                         "(addr %02x <- %02x, err = %i)\n",
561                         __FUNCTION__, buf[0], buf[1], err);
562                 if (err < 0)
563                         return err;
564                 else
565                         return -EREMOTEIO;
566         }
567
568         /* Set the Auxiliary Byte. */
569         buf[2] &= ~0x20;
570         buf[2] |= 0x18;
571         buf[3] = 0x50;
572         i2c_transfer(card->i2c_adapter, &msg, 1);
573
574         return 0;
575 }
576
577 static struct lgdt330x_config tdvs_tua6034_config = {
578         .demod_address    = 0x0e,
579         .demod_chip       = LGDT3303,
580         .serial_mpeg      = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
581         .pll_set          = tdvs_tua6034_pll_set,
582 };
583
584 static void lgdt330x_reset(struct dvb_bt8xx_card *bt)
585 {
586         /* Set pin 27 of the lgdt3303 chip high to reset the frontend */
587
588         /* Pulse the reset line */
589         bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
590         bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000000); /* Low  */
591         msleep(100);
592
593         bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
594         msleep(100);
595 }
596
597 static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
598 {
599         int ret;
600         struct dst_state* state = NULL;
601
602         switch(type) {
603 #ifdef BTTV_BOARD_DVICO_DVBT_LITE
604         case BTTV_BOARD_DVICO_DVBT_LITE:
605                 card->fe = mt352_attach(&thomson_dtt7579_config, card->i2c_adapter);
606                 if (card->fe != NULL) {
607                         card->fe->ops->info.frequency_min = 174000000;
608                         card->fe->ops->info.frequency_max = 862000000;
609                 }
610                 break;
611 #endif
612
613 #ifdef BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE
614         case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
615                 lgdt330x_reset(card);
616                 card->fe = lgdt330x_attach(&tdvs_tua6034_config, card->i2c_adapter);
617                 if (card->fe != NULL)
618                         dprintk ("dvb_bt8xx: lgdt330x detected\n");
619                 break;
620 #endif
621
622 #ifdef BTTV_BOARD_TWINHAN_VP3021
623         case BTTV_BOARD_TWINHAN_VP3021:
624 #else
625         case BTTV_BOARD_NEBULA_DIGITV:
626 #endif
627                 /*
628                  * It is possible to determine the correct frontend using the I2C bus (see the Nebula SDK);
629                  * this would be a cleaner solution than trying each frontend in turn.
630                  */
631
632                 /* Old Nebula (marked (c)2003 on high profile pci card) has nxt6000 demod */
633                 digitv_alps_tded4_reset(card);
634                 card->fe = nxt6000_attach(&vp3021_alps_tded4_config, card->i2c_adapter);
635                 if (card->fe != NULL) {
636                         dprintk ("dvb_bt8xx: an nxt6000 was detected on your digitv card\n");
637                         break;
638                 }
639
640                 /* New Nebula (marked (c)2005 on low profile pci card) has mt352 demod */
641                 digitv_alps_tded4_reset(card);
642                 card->fe = mt352_attach(&digitv_alps_tded4_config, card->i2c_adapter);
643
644                 if (card->fe != NULL)
645                         dprintk ("dvb_bt8xx: an mt352 was detected on your digitv card\n");
646                 break;
647
648         case BTTV_BOARD_AVDVBT_761:
649                 card->fe = sp887x_attach(&microtune_mt7202dtf_config, card->i2c_adapter);
650                 break;
651
652         case BTTV_BOARD_AVDVBT_771:
653                 card->fe = mt352_attach(&advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
654                 if (card->fe != NULL) {
655                         card->fe->ops->info.frequency_min = 174000000;
656                         card->fe->ops->info.frequency_max = 862000000;
657                 }
658                 break;
659
660         case BTTV_BOARD_TWINHAN_DST:
661                 /*      DST is not a frontend driver !!!                */
662                 state = (struct dst_state *) kmalloc(sizeof (struct dst_state), GFP_KERNEL);
663                 /*      Setup the Card                                  */
664                 state->config = &dst_config;
665                 state->i2c = card->i2c_adapter;
666                 state->bt = card->bt;
667
668                 /*      DST is not a frontend, attaching the ASIC       */
669                 if ((dst_attach(state, &card->dvb_adapter)) == NULL) {
670                         printk("%s: Could not find a Twinhan DST.\n", __FUNCTION__);
671                         break;
672                 }
673                 card->fe = &state->frontend;
674
675                 /*      Attach other DST peripherals if any             */
676                 /*      Conditional Access device                       */
677                 if (state->dst_hw_cap & DST_TYPE_HAS_CA)
678                         ret = dst_ca_attach(state, &card->dvb_adapter);
679                 break;
680
681         case BTTV_BOARD_PINNACLESAT:
682                 card->fe = cx24110_attach(&pctvsat_config, card->i2c_adapter);
683                 break;
684
685         case BTTV_BOARD_PC_HDTV:
686                 card->fe = or51211_attach(&or51211_config, card->i2c_adapter);
687                 break;
688         }
689
690         if (card->fe == NULL)
691                 printk("dvb-bt8xx: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
692                        card->bt->dev->vendor,
693                        card->bt->dev->device,
694                        card->bt->dev->subsystem_vendor,
695                        card->bt->dev->subsystem_device);
696         else
697                 if (dvb_register_frontend(&card->dvb_adapter, card->fe)) {
698                         printk("dvb-bt8xx: Frontend registration failed!\n");
699                         if (card->fe->ops->release)
700                                 card->fe->ops->release(card->fe);
701                         card->fe = NULL;
702                 }
703 }
704
705 static int __init dvb_bt8xx_load_card(struct dvb_bt8xx_card *card, u32 type)
706 {
707         int result;
708
709         if ((result = dvb_register_adapter(&card->dvb_adapter, card->card_name, THIS_MODULE)) < 0) {
710                 printk("dvb_bt8xx: dvb_register_adapter failed (errno = %d)\n", result);
711                 return result;
712         }
713         card->dvb_adapter.priv = card;
714
715         card->bt->adapter = card->i2c_adapter;
716
717         memset(&card->demux, 0, sizeof(struct dvb_demux));
718
719         card->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
720
721         card->demux.priv = card;
722         card->demux.filternum = 256;
723         card->demux.feednum = 256;
724         card->demux.start_feed = dvb_bt8xx_start_feed;
725         card->demux.stop_feed = dvb_bt8xx_stop_feed;
726         card->demux.write_to_decoder = NULL;
727
728         if ((result = dvb_dmx_init(&card->demux)) < 0) {
729                 printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
730
731                 dvb_unregister_adapter(&card->dvb_adapter);
732                 return result;
733         }
734
735         card->dmxdev.filternum = 256;
736         card->dmxdev.demux = &card->demux.dmx;
737         card->dmxdev.capabilities = 0;
738
739         if ((result = dvb_dmxdev_init(&card->dmxdev, &card->dvb_adapter)) < 0) {
740                 printk("dvb_bt8xx: dvb_dmxdev_init failed (errno = %d)\n", result);
741
742                 dvb_dmx_release(&card->demux);
743                 dvb_unregister_adapter(&card->dvb_adapter);
744                 return result;
745         }
746
747         card->fe_hw.source = DMX_FRONTEND_0;
748
749         if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
750                 printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
751
752                 dvb_dmxdev_release(&card->dmxdev);
753                 dvb_dmx_release(&card->demux);
754                 dvb_unregister_adapter(&card->dvb_adapter);
755                 return result;
756         }
757
758         card->fe_mem.source = DMX_MEMORY_FE;
759
760         if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_mem)) < 0) {
761                 printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
762
763                 card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
764                 dvb_dmxdev_release(&card->dmxdev);
765                 dvb_dmx_release(&card->demux);
766                 dvb_unregister_adapter(&card->dvb_adapter);
767                 return result;
768         }
769
770         if ((result = card->demux.dmx.connect_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
771                 printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
772
773                 card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
774                 card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
775                 dvb_dmxdev_release(&card->dmxdev);
776                 dvb_dmx_release(&card->demux);
777                 dvb_unregister_adapter(&card->dvb_adapter);
778                 return result;
779         }
780
781         dvb_net_init(&card->dvb_adapter, &card->dvbnet, &card->demux.dmx);
782
783         tasklet_init(&card->bt->tasklet, dvb_bt8xx_task, (unsigned long) card);
784
785         frontend_init(card, type);
786
787         return 0;
788 }
789
790 static int dvb_bt8xx_probe(struct device *dev)
791 {
792         struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
793         struct dvb_bt8xx_card *card;
794         struct pci_dev* bttv_pci_dev;
795         int ret;
796
797         if (!(card = kmalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
798                 return -ENOMEM;
799
800         memset(card, 0, sizeof(*card));
801         init_MUTEX(&card->lock);
802         card->bttv_nr = sub->core->nr;
803         strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));
804         card->i2c_adapter = &sub->core->i2c_adap;
805
806         switch(sub->core->type) {
807         case BTTV_BOARD_PINNACLESAT:
808                 card->gpio_mode = 0x0400c060;
809                 /* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
810                               BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
811                 card->op_sync_orin = 0;
812                 card->irq_err_ignore = 0;
813                 break;
814
815 #ifdef BTTV_BOARD_DVICO_DVBT_LITE
816         case BTTV_BOARD_DVICO_DVBT_LITE:
817 #endif
818                 card->gpio_mode = 0x0400C060;
819                 card->op_sync_orin = 0;
820                 card->irq_err_ignore = 0;
821                 /* 26, 15, 14, 6, 5
822                  * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
823                  * DA_APP(parallel) */
824                 break;
825
826 #ifdef BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE
827         case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
828 #endif
829                 card->gpio_mode = 0x0400c060;
830                 card->op_sync_orin = BT878_RISC_SYNC_MASK;
831                 card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
832                 break;
833
834 #ifdef BTTV_BOARD_TWINHAN_VP3021
835         case BTTV_BOARD_TWINHAN_VP3021:
836 #else
837         case BTTV_BOARD_NEBULA_DIGITV:
838 #endif
839         case BTTV_BOARD_AVDVBT_761:
840                 card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
841                 card->op_sync_orin = 0;
842                 card->irq_err_ignore = 0;
843                 /* A_PWRDN DA_SBR DA_APP (high speed serial) */
844                 break;
845
846         case BTTV_BOARD_AVDVBT_771: //case 0x07711461:
847                 card->gpio_mode = 0x0400402B;
848                 card->op_sync_orin = BT878_RISC_SYNC_MASK;
849                 card->irq_err_ignore = 0;
850                 /* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
851                 break;
852
853         case BTTV_BOARD_TWINHAN_DST:
854                 card->gpio_mode = 0x2204f2c;
855                 card->op_sync_orin = BT878_RISC_SYNC_MASK;
856                 card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
857                                        BT878_APPERR | BT878_AFBUS;
858                 /* 25,21,14,11,10,9,8,3,2 then
859                  * 0x33 = 5,4,1,0
860                  * A_SEL=SML, DA_MLB, DA_SBR,
861                  * DA_SDR=f, fifo trigger = 32 DWORDS
862                  * IOM = 0 == audio A/D
863                  * DPM = 0 == digital audio mode
864                  * == async data parallel port
865                  * then 0x33 (13 is set by start_capture)
866                  * DA_APP = async data parallel port,
867                  * ACAP_EN = 1,
868                  * RISC+FIFO ENABLE */
869                 break;
870
871         case BTTV_BOARD_PC_HDTV:
872                 card->gpio_mode = 0x0100EC7B;
873                 card->op_sync_orin = 0;
874                 card->irq_err_ignore = 0;
875                 break;
876
877         default:
878                 printk(KERN_WARNING "dvb_bt8xx: Unknown bttv card type: %d.\n",
879                                 sub->core->type);
880                 kfree(card);
881                 return -ENODEV;
882         }
883
884         dprintk("dvb_bt8xx: identified card%d as %s\n", card->bttv_nr, card->card_name);
885
886         if (!(bttv_pci_dev = bttv_get_pcidev(card->bttv_nr))) {
887                 printk("dvb_bt8xx: no pci device for card %d\n", card->bttv_nr);
888                 kfree(card);
889                 return -EFAULT;
890         }
891
892         if (!(card->bt = dvb_bt8xx_878_match(card->bttv_nr, bttv_pci_dev))) {
893                 printk("dvb_bt8xx: unable to determine DMA core of card %d,\n",
894                        card->bttv_nr);
895                 printk("dvb_bt8xx: if you have the ALSA bt87x audio driver "
896                        "installed, try removing it.\n");
897
898                 kfree(card);
899                 return -EFAULT;
900         }
901
902         init_MUTEX(&card->bt->gpio_lock);
903         card->bt->bttv_nr = sub->core->nr;
904
905         if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
906                 kfree(card);
907                 return ret;
908         }
909
910         dev_set_drvdata(dev, card);
911         return 0;
912 }
913
914 static int dvb_bt8xx_remove(struct device *dev)
915 {
916         struct dvb_bt8xx_card *card = dev_get_drvdata(dev);
917
918         dprintk("dvb_bt8xx: unloading card%d\n", card->bttv_nr);
919
920         bt878_stop(card->bt);
921         tasklet_kill(&card->bt->tasklet);
922         dvb_net_release(&card->dvbnet);
923         card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
924         card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
925         dvb_dmxdev_release(&card->dmxdev);
926         dvb_dmx_release(&card->demux);
927         if (card->fe)
928                 dvb_unregister_frontend(card->fe);
929         dvb_unregister_adapter(&card->dvb_adapter);
930
931         kfree(card);
932
933         return 0;
934 }
935
936 static struct bttv_sub_driver driver = {
937         .drv = {
938                 .name           = "dvb-bt8xx",
939                 .probe          = dvb_bt8xx_probe,
940                 .remove         = dvb_bt8xx_remove,
941                 /* FIXME:
942                  * .shutdown    = dvb_bt8xx_shutdown,
943                  * .suspend     = dvb_bt8xx_suspend,
944                  * .resume      = dvb_bt8xx_resume,
945                  */
946         },
947 };
948
949 static int __init dvb_bt8xx_init(void)
950 {
951         return bttv_sub_register(&driver, "dvb");
952 }
953
954 static void __exit dvb_bt8xx_exit(void)
955 {
956         bttv_sub_unregister(&driver);
957 }
958
959 module_init(dvb_bt8xx_init);
960 module_exit(dvb_bt8xx_exit);
961
962 MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
963 MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
964 MODULE_LICENSE("GPL");