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22#include <linux/kernel.h>
23#include <linux/slab.h>
24#include <linux/usb.h>
25
26#include "cx231xx.h"
27#include <media/v4l2-common.h>
28#include <media/videobuf-vmalloc.h>
29
30#include "xc5000.h"
31#include "s5h1432.h"
32#include "tda18271.h"
33#include "s5h1411.h"
34#include "lgdt3305.h"
35#include "mb86a20s.h"
36
37MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
38MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
39MODULE_LICENSE("GPL");
40
41static unsigned int debug;
42module_param(debug, int, 0644);
43MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
44
45DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
46
47#define dprintk(level, fmt, arg...) do { \
48if (debug >= level) \
49 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
50} while (0)
51
52#define CX231XX_DVB_NUM_BUFS 5
53#define CX231XX_DVB_MAX_PACKETSIZE 564
54#define CX231XX_DVB_MAX_PACKETS 64
55
56struct cx231xx_dvb {
57 struct dvb_frontend *frontend;
58
59
60 struct mutex lock;
61 int nfeeds;
62
63
64 struct dvb_adapter adapter;
65 struct dvb_demux demux;
66 struct dmxdev dmxdev;
67 struct dmx_frontend fe_hw;
68 struct dmx_frontend fe_mem;
69 struct dvb_net net;
70};
71
72static struct s5h1432_config dvico_s5h1432_config = {
73 .output_mode = S5H1432_SERIAL_OUTPUT,
74 .gpio = S5H1432_GPIO_ON,
75 .qam_if = S5H1432_IF_4000,
76 .vsb_if = S5H1432_IF_4000,
77 .inversion = S5H1432_INVERSION_OFF,
78 .status_mode = S5H1432_DEMODLOCKING,
79 .mpeg_timing = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
80};
81
82static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
83 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
84 .if_lvl = 1, .rfagc_top = 0x37, },
85 .dvbt_7 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
86 .if_lvl = 1, .rfagc_top = 0x37, },
87 .dvbt_8 = { .if_freq = 4000, .agc_mode = 3, .std = 6,
88 .if_lvl = 1, .rfagc_top = 0x37, },
89};
90
91static struct tda18271_std_map mb86a20s_tda18271_config = {
92 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
93 .if_lvl = 0, .rfagc_top = 0x37, },
94};
95
96static struct tda18271_config cnxt_rde253s_tunerconfig = {
97 .std_map = &cnxt_rde253s_tda18271_std_map,
98 .gate = TDA18271_GATE_ANALOG,
99};
100
101static struct s5h1411_config tda18271_s5h1411_config = {
102 .output_mode = S5H1411_SERIAL_OUTPUT,
103 .gpio = S5H1411_GPIO_OFF,
104 .vsb_if = S5H1411_IF_3250,
105 .qam_if = S5H1411_IF_4000,
106 .inversion = S5H1411_INVERSION_ON,
107 .status_mode = S5H1411_DEMODLOCKING,
108 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
109};
110static struct s5h1411_config xc5000_s5h1411_config = {
111 .output_mode = S5H1411_SERIAL_OUTPUT,
112 .gpio = S5H1411_GPIO_OFF,
113 .vsb_if = S5H1411_IF_3250,
114 .qam_if = S5H1411_IF_3250,
115 .inversion = S5H1411_INVERSION_OFF,
116 .status_mode = S5H1411_DEMODLOCKING,
117 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
118};
119
120static struct lgdt3305_config hcw_lgdt3305_config = {
121 .i2c_addr = 0x0e,
122 .mpeg_mode = LGDT3305_MPEG_SERIAL,
123 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
124 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
125 .deny_i2c_rptr = 1,
126 .spectral_inversion = 1,
127 .qam_if_khz = 4000,
128 .vsb_if_khz = 3250,
129};
130
131static struct tda18271_std_map hauppauge_tda18271_std_map = {
132 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 4,
133 .if_lvl = 1, .rfagc_top = 0x58, },
134 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
135 .if_lvl = 1, .rfagc_top = 0x58, },
136};
137
138static struct tda18271_config hcw_tda18271_config = {
139 .std_map = &hauppauge_tda18271_std_map,
140 .gate = TDA18271_GATE_DIGITAL,
141};
142
143static const struct mb86a20s_config pv_mb86a20s_config = {
144 .demod_address = 0x10,
145 .is_serial = true,
146};
147
148static struct tda18271_config pv_tda18271_config = {
149 .std_map = &mb86a20s_tda18271_config,
150 .gate = TDA18271_GATE_DIGITAL,
151 .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
152};
153
154static inline void print_err_status(struct cx231xx *dev, int packet, int status)
155{
156 char *errmsg = "Unknown";
157
158 switch (status) {
159 case -ENOENT:
160 errmsg = "unlinked synchronuously";
161 break;
162 case -ECONNRESET:
163 errmsg = "unlinked asynchronuously";
164 break;
165 case -ENOSR:
166 errmsg = "Buffer error (overrun)";
167 break;
168 case -EPIPE:
169 errmsg = "Stalled (device not responding)";
170 break;
171 case -EOVERFLOW:
172 errmsg = "Babble (bad cable?)";
173 break;
174 case -EPROTO:
175 errmsg = "Bit-stuff error (bad cable?)";
176 break;
177 case -EILSEQ:
178 errmsg = "CRC/Timeout (could be anything)";
179 break;
180 case -ETIME:
181 errmsg = "Device does not respond";
182 break;
183 }
184 if (packet < 0) {
185 dprintk(1, "URB status %d [%s].\n", status, errmsg);
186 } else {
187 dprintk(1, "URB packet %d, status %d [%s].\n",
188 packet, status, errmsg);
189 }
190}
191
192static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
193{
194 int i;
195
196 if (!dev)
197 return 0;
198
199 if (dev->state & DEV_DISCONNECTED)
200 return 0;
201
202 if (urb->status < 0) {
203 print_err_status(dev, -1, urb->status);
204 if (urb->status == -ENOENT)
205 return 0;
206 }
207
208 for (i = 0; i < urb->number_of_packets; i++) {
209 int status = urb->iso_frame_desc[i].status;
210
211 if (status < 0) {
212 print_err_status(dev, i, status);
213 if (urb->iso_frame_desc[i].status != -EPROTO)
214 continue;
215 }
216
217 dvb_dmx_swfilter(&dev->dvb->demux,
218 urb->transfer_buffer +
219 urb->iso_frame_desc[i].offset,
220 urb->iso_frame_desc[i].actual_length);
221 }
222
223 return 0;
224}
225
226static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
227{
228 if (!dev)
229 return 0;
230
231 if (dev->state & DEV_DISCONNECTED)
232 return 0;
233
234 if (urb->status < 0) {
235 print_err_status(dev, -1, urb->status);
236 if (urb->status == -ENOENT)
237 return 0;
238 }
239
240
241 dvb_dmx_swfilter(&dev->dvb->demux,
242 urb->transfer_buffer, urb->actual_length);
243
244 return 0;
245}
246
247static int start_streaming(struct cx231xx_dvb *dvb)
248{
249 int rc;
250 struct cx231xx *dev = dvb->adapter.priv;
251
252 if (dev->USE_ISO) {
253 cx231xx_info("DVB transfer mode is ISO.\n");
254 mutex_lock(&dev->i2c_lock);
255 cx231xx_enable_i2c_port_3(dev, false);
256 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
257 cx231xx_enable_i2c_port_3(dev, true);
258 mutex_unlock(&dev->i2c_lock);
259 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
260 if (rc < 0)
261 return rc;
262 dev->mode_tv = 1;
263 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
264 CX231XX_DVB_NUM_BUFS,
265 dev->ts1_mode.max_pkt_size,
266 dvb_isoc_copy);
267 } else {
268 cx231xx_info("DVB transfer mode is BULK.\n");
269 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
270 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
271 if (rc < 0)
272 return rc;
273 dev->mode_tv = 1;
274 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
275 CX231XX_DVB_NUM_BUFS,
276 dev->ts1_mode.max_pkt_size,
277 dvb_bulk_copy);
278 }
279
280}
281
282static int stop_streaming(struct cx231xx_dvb *dvb)
283{
284 struct cx231xx *dev = dvb->adapter.priv;
285
286 if (dev->USE_ISO)
287 cx231xx_uninit_isoc(dev);
288 else
289 cx231xx_uninit_bulk(dev);
290
291 cx231xx_set_mode(dev, CX231XX_SUSPEND);
292
293 return 0;
294}
295
296static int start_feed(struct dvb_demux_feed *feed)
297{
298 struct dvb_demux *demux = feed->demux;
299 struct cx231xx_dvb *dvb = demux->priv;
300 int rc, ret;
301
302 if (!demux->dmx.frontend)
303 return -EINVAL;
304
305 mutex_lock(&dvb->lock);
306 dvb->nfeeds++;
307 rc = dvb->nfeeds;
308
309 if (dvb->nfeeds == 1) {
310 ret = start_streaming(dvb);
311 if (ret < 0)
312 rc = ret;
313 }
314
315 mutex_unlock(&dvb->lock);
316 return rc;
317}
318
319static int stop_feed(struct dvb_demux_feed *feed)
320{
321 struct dvb_demux *demux = feed->demux;
322 struct cx231xx_dvb *dvb = demux->priv;
323 int err = 0;
324
325 mutex_lock(&dvb->lock);
326 dvb->nfeeds--;
327
328 if (0 == dvb->nfeeds)
329 err = stop_streaming(dvb);
330
331 mutex_unlock(&dvb->lock);
332 return err;
333}
334
335
336static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
337{
338 struct cx231xx *dev = fe->dvb->priv;
339
340 if (acquire)
341 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
342 else
343 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
344}
345
346
347
348static struct xc5000_config cnxt_rde250_tunerconfig = {
349 .i2c_address = 0x61,
350 .if_khz = 4000,
351};
352static struct xc5000_config cnxt_rdu250_tunerconfig = {
353 .i2c_address = 0x61,
354 .if_khz = 3250,
355};
356
357
358#if 0
359static int attach_xc5000(u8 addr, struct cx231xx *dev)
360{
361
362 struct dvb_frontend *fe;
363 struct xc5000_config cfg;
364
365 memset(&cfg, 0, sizeof(cfg));
366 cfg.i2c_adap = &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap;
367 cfg.i2c_addr = addr;
368
369 if (!dev->dvb->frontend) {
370 printk(KERN_ERR "%s/2: dvb frontend not attached. "
371 "Can't attach xc5000\n", dev->name);
372 return -EINVAL;
373 }
374
375 fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
376 if (!fe) {
377 printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
378 dvb_frontend_detach(dev->dvb->frontend);
379 dev->dvb->frontend = NULL;
380 return -EINVAL;
381 }
382
383 printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
384
385 return 0;
386}
387#endif
388
389int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
390{
391 int status = 0;
392
393 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
394
395 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
396
397 if (dops->set_analog_params != NULL) {
398 struct analog_parameters params;
399
400 params.frequency = freq;
401 params.std = dev->norm;
402 params.mode = 0;
403
404
405
406 dops->set_analog_params(dev->dvb->frontend, ¶ms);
407 }
408
409 }
410
411 return status;
412}
413
414int cx231xx_reset_analog_tuner(struct cx231xx *dev)
415{
416 int status = 0;
417
418 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
419
420 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
421
422 if (dops->init != NULL && !dev->xc_fw_load_done) {
423
424 cx231xx_info("Reloading firmware for XC5000\n");
425 status = dops->init(dev->dvb->frontend);
426 if (status == 0) {
427 dev->xc_fw_load_done = 1;
428 cx231xx_info
429 ("XC5000 firmware download completed\n");
430 } else {
431 dev->xc_fw_load_done = 0;
432 cx231xx_info
433 ("XC5000 firmware download failed !!!\n");
434 }
435 }
436
437 }
438
439 return status;
440}
441
442
443
444static int register_dvb(struct cx231xx_dvb *dvb,
445 struct module *module,
446 struct cx231xx *dev, struct device *device)
447{
448 int result;
449
450 mutex_init(&dvb->lock);
451
452
453 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
454 adapter_nr);
455 if (result < 0) {
456 printk(KERN_WARNING
457 "%s: dvb_register_adapter failed (errno = %d)\n",
458 dev->name, result);
459 goto fail_adapter;
460 }
461
462
463 dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
464
465 dvb->adapter.priv = dev;
466
467
468 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
469 if (result < 0) {
470 printk(KERN_WARNING
471 "%s: dvb_register_frontend failed (errno = %d)\n",
472 dev->name, result);
473 goto fail_frontend;
474 }
475
476
477 dvb->demux.dmx.capabilities =
478 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
479 DMX_MEMORY_BASED_FILTERING;
480 dvb->demux.priv = dvb;
481 dvb->demux.filternum = 256;
482 dvb->demux.feednum = 256;
483 dvb->demux.start_feed = start_feed;
484 dvb->demux.stop_feed = stop_feed;
485
486 result = dvb_dmx_init(&dvb->demux);
487 if (result < 0) {
488 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
489 dev->name, result);
490 goto fail_dmx;
491 }
492
493 dvb->dmxdev.filternum = 256;
494 dvb->dmxdev.demux = &dvb->demux.dmx;
495 dvb->dmxdev.capabilities = 0;
496 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
497 if (result < 0) {
498 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
499 dev->name, result);
500 goto fail_dmxdev;
501 }
502
503 dvb->fe_hw.source = DMX_FRONTEND_0;
504 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
505 if (result < 0) {
506 printk(KERN_WARNING
507 "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
508 dev->name, result);
509 goto fail_fe_hw;
510 }
511
512 dvb->fe_mem.source = DMX_MEMORY_FE;
513 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
514 if (result < 0) {
515 printk(KERN_WARNING
516 "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
517 dev->name, result);
518 goto fail_fe_mem;
519 }
520
521 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
522 if (result < 0) {
523 printk(KERN_WARNING
524 "%s: connect_frontend failed (errno = %d)\n", dev->name,
525 result);
526 goto fail_fe_conn;
527 }
528
529
530 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
531 return 0;
532
533fail_fe_conn:
534 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
535fail_fe_mem:
536 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
537fail_fe_hw:
538 dvb_dmxdev_release(&dvb->dmxdev);
539fail_dmxdev:
540 dvb_dmx_release(&dvb->demux);
541fail_dmx:
542 dvb_unregister_frontend(dvb->frontend);
543fail_frontend:
544 dvb_frontend_detach(dvb->frontend);
545 dvb_unregister_adapter(&dvb->adapter);
546fail_adapter:
547 return result;
548}
549
550static void unregister_dvb(struct cx231xx_dvb *dvb)
551{
552 dvb_net_release(&dvb->net);
553 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
554 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
555 dvb_dmxdev_release(&dvb->dmxdev);
556 dvb_dmx_release(&dvb->demux);
557 dvb_unregister_frontend(dvb->frontend);
558 dvb_frontend_detach(dvb->frontend);
559 dvb_unregister_adapter(&dvb->adapter);
560}
561
562static int dvb_init(struct cx231xx *dev)
563{
564 int result = 0;
565 struct cx231xx_dvb *dvb;
566
567 if (!dev->board.has_dvb) {
568
569 return 0;
570 }
571
572 dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
573
574 if (dvb == NULL) {
575 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
576 return -ENOMEM;
577 }
578 dev->dvb = dvb;
579 dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
580 dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
581
582 mutex_lock(&dev->lock);
583 cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
584 cx231xx_demod_reset(dev);
585
586 switch (dev->model) {
587 case CX231XX_BOARD_CNXT_CARRAERA:
588 case CX231XX_BOARD_CNXT_RDE_250:
589
590 dev->dvb->frontend = dvb_attach(s5h1432_attach,
591 &dvico_s5h1432_config,
592 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
593
594 if (dev->dvb->frontend == NULL) {
595 printk(DRIVER_NAME
596 ": Failed to attach s5h1432 front end\n");
597 result = -EINVAL;
598 goto out_free;
599 }
600
601
602 dvb->frontend->callback = cx231xx_tuner_callback;
603
604 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
605 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
606 &cnxt_rde250_tunerconfig)) {
607 result = -EINVAL;
608 goto out_free;
609 }
610
611 break;
612 case CX231XX_BOARD_CNXT_SHELBY:
613 case CX231XX_BOARD_CNXT_RDU_250:
614
615 dev->dvb->frontend = dvb_attach(s5h1411_attach,
616 &xc5000_s5h1411_config,
617 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
618
619 if (dev->dvb->frontend == NULL) {
620 printk(DRIVER_NAME
621 ": Failed to attach s5h1411 front end\n");
622 result = -EINVAL;
623 goto out_free;
624 }
625
626
627 dvb->frontend->callback = cx231xx_tuner_callback;
628
629 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
630 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
631 &cnxt_rdu250_tunerconfig)) {
632 result = -EINVAL;
633 goto out_free;
634 }
635 break;
636 case CX231XX_BOARD_CNXT_RDE_253S:
637
638 dev->dvb->frontend = dvb_attach(s5h1432_attach,
639 &dvico_s5h1432_config,
640 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
641
642 if (dev->dvb->frontend == NULL) {
643 printk(DRIVER_NAME
644 ": Failed to attach s5h1432 front end\n");
645 result = -EINVAL;
646 goto out_free;
647 }
648
649
650 dvb->frontend->callback = cx231xx_tuner_callback;
651
652 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
653 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
654 &cnxt_rde253s_tunerconfig)) {
655 result = -EINVAL;
656 goto out_free;
657 }
658 break;
659 case CX231XX_BOARD_CNXT_RDU_253S:
660
661 dev->dvb->frontend = dvb_attach(s5h1411_attach,
662 &tda18271_s5h1411_config,
663 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
664
665 if (dev->dvb->frontend == NULL) {
666 printk(DRIVER_NAME
667 ": Failed to attach s5h1411 front end\n");
668 result = -EINVAL;
669 goto out_free;
670 }
671
672
673 dvb->frontend->callback = cx231xx_tuner_callback;
674
675 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
676 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
677 &cnxt_rde253s_tunerconfig)) {
678 result = -EINVAL;
679 goto out_free;
680 }
681 break;
682 case CX231XX_BOARD_HAUPPAUGE_EXETER:
683
684 printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
685 __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
686
687 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
688 &hcw_lgdt3305_config,
689 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
690
691 if (dev->dvb->frontend == NULL) {
692 printk(DRIVER_NAME
693 ": Failed to attach LG3305 front end\n");
694 result = -EINVAL;
695 goto out_free;
696 }
697
698
699 dvb->frontend->callback = cx231xx_tuner_callback;
700
701 dvb_attach(tda18271_attach, dev->dvb->frontend,
702 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
703 &hcw_tda18271_config);
704 break;
705
706 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
707 case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
708
709 printk(KERN_INFO "%s: looking for demod on i2c bus: %d\n",
710 __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
711
712 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
713 &pv_mb86a20s_config,
714 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
715
716 if (dev->dvb->frontend == NULL) {
717 printk(DRIVER_NAME
718 ": Failed to attach mb86a20s demod\n");
719 result = -EINVAL;
720 goto out_free;
721 }
722
723
724 dvb->frontend->callback = cx231xx_tuner_callback;
725
726 dvb_attach(tda18271_attach, dev->dvb->frontend,
727 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
728 &pv_tda18271_config);
729 break;
730
731 default:
732 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
733 " isn't supported yet\n", dev->name);
734 break;
735 }
736 if (NULL == dvb->frontend) {
737 printk(KERN_ERR
738 "%s/2: frontend initialization failed\n", dev->name);
739 result = -EINVAL;
740 goto out_free;
741 }
742
743
744 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
745
746 if (result < 0)
747 goto out_free;
748
749
750 printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
751
752ret:
753 cx231xx_set_mode(dev, CX231XX_SUSPEND);
754 mutex_unlock(&dev->lock);
755 return result;
756
757out_free:
758 kfree(dvb);
759 dev->dvb = NULL;
760 goto ret;
761}
762
763static int dvb_fini(struct cx231xx *dev)
764{
765 if (!dev->board.has_dvb) {
766
767 return 0;
768 }
769
770 if (dev->dvb) {
771 unregister_dvb(dev->dvb);
772 dev->dvb = NULL;
773 }
774
775 return 0;
776}
777
778static struct cx231xx_ops dvb_ops = {
779 .id = CX231XX_DVB,
780 .name = "Cx231xx dvb Extension",
781 .init = dvb_init,
782 .fini = dvb_fini,
783};
784
785static int __init cx231xx_dvb_register(void)
786{
787 return cx231xx_register_extension(&dvb_ops);
788}
789
790static void __exit cx231xx_dvb_unregister(void)
791{
792 cx231xx_unregister_extension(&dvb_ops);
793}
794
795module_init(cx231xx_dvb_register);
796module_exit(cx231xx_dvb_unregister);
797
