Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / media / video / cx231xx / cx231xx-dvb.c
blob7c4e360ba9bcba325177a881e7d0f9ee052c4fce
1 /*
2 DVB device driver for cx231xx
4 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
5 Based on em28xx driver
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/kernel.h>
23 #include <linux/slab.h>
24 #include <linux/usb.h>
26 #include "cx231xx.h"
27 #include <media/v4l2-common.h>
28 #include <media/videobuf-vmalloc.h>
30 #include "xc5000.h"
31 #include "s5h1432.h"
32 #include "tda18271.h"
33 #include "s5h1411.h"
34 #include "lgdt3305.h"
35 #include "mb86a20s.h"
37 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
38 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
39 MODULE_LICENSE("GPL");
41 static unsigned int debug;
42 module_param(debug, int, 0644);
43 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
45 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
47 #define dprintk(level, fmt, arg...) do { \
48 if (debug >= level) \
49 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
50 } while (0)
52 #define CX231XX_DVB_NUM_BUFS 5
53 #define CX231XX_DVB_MAX_PACKETSIZE 564
54 #define CX231XX_DVB_MAX_PACKETS 64
56 struct cx231xx_dvb {
57 struct dvb_frontend *frontend;
59 /* feed count management */
60 struct mutex lock;
61 int nfeeds;
63 /* general boilerplate stuff */
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;
72 static 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,
82 static 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, },
91 static struct tda18271_std_map mb86a20s_tda18271_config = {
92 .dvbt_6 = { .if_freq = 3300, .agc_mode = 3, .std = 4,
93 .if_lvl = 7, .rfagc_top = 0x37, },
96 static struct tda18271_config cnxt_rde253s_tunerconfig = {
97 .std_map = &cnxt_rde253s_tda18271_std_map,
98 .gate = TDA18271_GATE_ANALOG,
101 static 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,
110 static 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,
120 static 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,
131 static 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, },
138 static struct tda18271_config hcw_tda18271_config = {
139 .std_map = &hauppauge_tda18271_std_map,
140 .gate = TDA18271_GATE_DIGITAL,
143 static const struct mb86a20s_config pv_mb86a20s_config = {
144 .demod_address = 0x10,
145 .is_serial = true,
148 static 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,
154 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
156 char *errmsg = "Unknown";
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;
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);
192 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
194 int i;
196 if (!dev)
197 return 0;
199 if (dev->state & DEV_DISCONNECTED)
200 return 0;
202 if (urb->status < 0) {
203 print_err_status(dev, -1, urb->status);
204 if (urb->status == -ENOENT)
205 return 0;
208 for (i = 0; i < urb->number_of_packets; i++) {
209 int status = urb->iso_frame_desc[i].status;
211 if (status < 0) {
212 print_err_status(dev, i, status);
213 if (urb->iso_frame_desc[i].status != -EPROTO)
214 continue;
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);
223 return 0;
226 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
228 if (!dev)
229 return 0;
231 if (dev->state & DEV_DISCONNECTED)
232 return 0;
234 if (urb->status < 0) {
235 print_err_status(dev, -1, urb->status);
236 if (urb->status == -ENOENT)
237 return 0;
240 /* Feed the transport payload into the kernel demux */
241 dvb_dmx_swfilter(&dev->dvb->demux,
242 urb->transfer_buffer, urb->actual_length);
244 return 0;
247 static int start_streaming(struct cx231xx_dvb *dvb)
249 int rc;
250 struct cx231xx *dev = dvb->adapter.priv;
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);
282 static int stop_streaming(struct cx231xx_dvb *dvb)
284 struct cx231xx *dev = dvb->adapter.priv;
286 if (dev->USE_ISO)
287 cx231xx_uninit_isoc(dev);
288 else
289 cx231xx_uninit_bulk(dev);
291 cx231xx_set_mode(dev, CX231XX_SUSPEND);
293 return 0;
296 static int start_feed(struct dvb_demux_feed *feed)
298 struct dvb_demux *demux = feed->demux;
299 struct cx231xx_dvb *dvb = demux->priv;
300 int rc, ret;
302 if (!demux->dmx.frontend)
303 return -EINVAL;
305 mutex_lock(&dvb->lock);
306 dvb->nfeeds++;
307 rc = dvb->nfeeds;
309 if (dvb->nfeeds == 1) {
310 ret = start_streaming(dvb);
311 if (ret < 0)
312 rc = ret;
315 mutex_unlock(&dvb->lock);
316 return rc;
319 static int stop_feed(struct dvb_demux_feed *feed)
321 struct dvb_demux *demux = feed->demux;
322 struct cx231xx_dvb *dvb = demux->priv;
323 int err = 0;
325 mutex_lock(&dvb->lock);
326 dvb->nfeeds--;
328 if (0 == dvb->nfeeds)
329 err = stop_streaming(dvb);
331 mutex_unlock(&dvb->lock);
332 return err;
335 /* ------------------------------------------------------------------ */
336 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
338 struct cx231xx *dev = fe->dvb->priv;
340 if (acquire)
341 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
342 else
343 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
346 /* ------------------------------------------------------------------ */
348 static struct xc5000_config cnxt_rde250_tunerconfig = {
349 .i2c_address = 0x61,
350 .if_khz = 4000,
352 static struct xc5000_config cnxt_rdu250_tunerconfig = {
353 .i2c_address = 0x61,
354 .if_khz = 3250,
357 /* ------------------------------------------------------------------ */
358 #if 0
359 static int attach_xc5000(u8 addr, struct cx231xx *dev)
362 struct dvb_frontend *fe;
363 struct xc5000_config cfg;
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;
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;
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;
383 printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
385 return 0;
387 #endif
389 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
391 int status = 0;
393 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
395 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
397 if (dops->set_analog_params != NULL) {
398 struct analog_parameters params;
400 params.frequency = freq;
401 params.std = dev->norm;
402 params.mode = 0; /* 0- Air; 1 - cable */
403 /*params.audmode = ; */
405 /* Set the analog parameters to set the frequency */
406 dops->set_analog_params(dev->dvb->frontend, &params);
411 return status;
414 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
416 int status = 0;
418 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
420 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
422 if (dops->init != NULL && !dev->xc_fw_load_done) {
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");
439 return status;
442 /* ------------------------------------------------------------------ */
444 static int register_dvb(struct cx231xx_dvb *dvb,
445 struct module *module,
446 struct cx231xx *dev, struct device *device)
448 int result;
450 mutex_init(&dvb->lock);
452 /* register adapter */
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;
462 /* Ensure all frontends negotiate bus access */
463 dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
465 dvb->adapter.priv = dev;
467 /* register frontend */
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;
476 /* register demux stuff */
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;
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;
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;
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;
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;
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;
529 /* register network adapter */
530 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
531 return 0;
533 fail_fe_conn:
534 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
535 fail_fe_mem:
536 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
537 fail_fe_hw:
538 dvb_dmxdev_release(&dvb->dmxdev);
539 fail_dmxdev:
540 dvb_dmx_release(&dvb->demux);
541 fail_dmx:
542 dvb_unregister_frontend(dvb->frontend);
543 fail_frontend:
544 dvb_frontend_detach(dvb->frontend);
545 dvb_unregister_adapter(&dvb->adapter);
546 fail_adapter:
547 return result;
550 static void unregister_dvb(struct cx231xx_dvb *dvb)
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);
562 static int dvb_init(struct cx231xx *dev)
564 int result = 0;
565 struct cx231xx_dvb *dvb;
567 if (!dev->board.has_dvb) {
568 /* This device does not support the extension */
569 return 0;
572 dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
574 if (dvb == NULL) {
575 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
576 return -ENOMEM;
578 dev->dvb = dvb;
579 dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
580 dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
582 mutex_lock(&dev->lock);
583 cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
584 cx231xx_demod_reset(dev);
585 /* init frontend */
586 switch (dev->model) {
587 case CX231XX_BOARD_CNXT_CARRAERA:
588 case CX231XX_BOARD_CNXT_RDE_250:
590 dev->dvb->frontend = dvb_attach(s5h1432_attach,
591 &dvico_s5h1432_config,
592 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
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;
601 /* define general-purpose callback pointer */
602 dvb->frontend->callback = cx231xx_tuner_callback;
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;
611 break;
612 case CX231XX_BOARD_CNXT_SHELBY:
613 case CX231XX_BOARD_CNXT_RDU_250:
615 dev->dvb->frontend = dvb_attach(s5h1411_attach,
616 &xc5000_s5h1411_config,
617 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
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;
626 /* define general-purpose callback pointer */
627 dvb->frontend->callback = cx231xx_tuner_callback;
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;
635 break;
636 case CX231XX_BOARD_CNXT_RDE_253S:
638 dev->dvb->frontend = dvb_attach(s5h1432_attach,
639 &dvico_s5h1432_config,
640 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
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;
649 /* define general-purpose callback pointer */
650 dvb->frontend->callback = cx231xx_tuner_callback;
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;
658 break;
659 case CX231XX_BOARD_CNXT_RDU_253S:
661 dev->dvb->frontend = dvb_attach(s5h1411_attach,
662 &tda18271_s5h1411_config,
663 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
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;
672 /* define general-purpose callback pointer */
673 dvb->frontend->callback = cx231xx_tuner_callback;
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;
681 break;
682 case CX231XX_BOARD_HAUPPAUGE_EXETER:
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));
687 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
688 &hcw_lgdt3305_config,
689 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
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;
698 /* define general-purpose callback pointer */
699 dvb->frontend->callback = cx231xx_tuner_callback;
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;
706 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
707 case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
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));
712 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
713 &pv_mb86a20s_config,
714 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
716 if (dev->dvb->frontend == NULL) {
717 printk(DRIVER_NAME
718 ": Failed to attach mb86a20s demod\n");
719 result = -EINVAL;
720 goto out_free;
723 /* define general-purpose callback pointer */
724 dvb->frontend->callback = cx231xx_tuner_callback;
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;
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;
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;
743 /* register everything */
744 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
746 if (result < 0)
747 goto out_free;
750 printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
752 ret:
753 cx231xx_set_mode(dev, CX231XX_SUSPEND);
754 mutex_unlock(&dev->lock);
755 return result;
757 out_free:
758 kfree(dvb);
759 dev->dvb = NULL;
760 goto ret;
763 static int dvb_fini(struct cx231xx *dev)
765 if (!dev->board.has_dvb) {
766 /* This device does not support the extension */
767 return 0;
770 if (dev->dvb) {
771 unregister_dvb(dev->dvb);
772 dev->dvb = NULL;
775 return 0;
778 static struct cx231xx_ops dvb_ops = {
779 .id = CX231XX_DVB,
780 .name = "Cx231xx dvb Extension",
781 .init = dvb_init,
782 .fini = dvb_fini,
785 static int __init cx231xx_dvb_register(void)
787 return cx231xx_register_extension(&dvb_ops);
790 static void __exit cx231xx_dvb_unregister(void)
792 cx231xx_unregister_extension(&dvb_ops);
795 module_init(cx231xx_dvb_register);
796 module_exit(cx231xx_dvb_unregister);