2 DVB device driver for cx231xx
4 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
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.
23 #include <linux/kernel.h>
24 #include <linux/slab.h>
26 #include <media/v4l2-common.h>
27 #include <media/videobuf-vmalloc.h>
37 #include "lgdt3306a.h"
39 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
40 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
41 MODULE_LICENSE("GPL");
43 static unsigned int debug;
44 module_param(debug, int, 0644);
45 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
47 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
49 #define CX231XX_DVB_NUM_BUFS 5
50 #define CX231XX_DVB_MAX_PACKETSIZE 564
51 #define CX231XX_DVB_MAX_PACKETS 64
54 struct dvb_frontend *frontend;
56 /* feed count management */
60 /* general boilerplate stuff */
61 struct dvb_adapter adapter;
62 struct dvb_demux demux;
64 struct dmx_frontend fe_hw;
65 struct dmx_frontend fe_mem;
67 struct i2c_client *i2c_client_tuner;
70 static struct s5h1432_config dvico_s5h1432_config = {
71 .output_mode = S5H1432_SERIAL_OUTPUT,
72 .gpio = S5H1432_GPIO_ON,
73 .qam_if = S5H1432_IF_4000,
74 .vsb_if = S5H1432_IF_4000,
75 .inversion = S5H1432_INVERSION_OFF,
76 .status_mode = S5H1432_DEMODLOCKING,
77 .mpeg_timing = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
80 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
81 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
82 .if_lvl = 1, .rfagc_top = 0x37, },
83 .dvbt_7 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
84 .if_lvl = 1, .rfagc_top = 0x37, },
85 .dvbt_8 = { .if_freq = 4000, .agc_mode = 3, .std = 6,
86 .if_lvl = 1, .rfagc_top = 0x37, },
89 static struct tda18271_std_map mb86a20s_tda18271_config = {
90 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
91 .if_lvl = 0, .rfagc_top = 0x37, },
94 static struct tda18271_config cnxt_rde253s_tunerconfig = {
95 .std_map = &cnxt_rde253s_tda18271_std_map,
96 .gate = TDA18271_GATE_ANALOG,
99 static struct s5h1411_config tda18271_s5h1411_config = {
100 .output_mode = S5H1411_SERIAL_OUTPUT,
101 .gpio = S5H1411_GPIO_OFF,
102 .vsb_if = S5H1411_IF_3250,
103 .qam_if = S5H1411_IF_4000,
104 .inversion = S5H1411_INVERSION_ON,
105 .status_mode = S5H1411_DEMODLOCKING,
106 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
108 static struct s5h1411_config xc5000_s5h1411_config = {
109 .output_mode = S5H1411_SERIAL_OUTPUT,
110 .gpio = S5H1411_GPIO_OFF,
111 .vsb_if = S5H1411_IF_3250,
112 .qam_if = S5H1411_IF_3250,
113 .inversion = S5H1411_INVERSION_OFF,
114 .status_mode = S5H1411_DEMODLOCKING,
115 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
118 static struct lgdt3305_config hcw_lgdt3305_config = {
120 .mpeg_mode = LGDT3305_MPEG_SERIAL,
121 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
122 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
124 .spectral_inversion = 1,
129 static struct tda18271_std_map hauppauge_tda18271_std_map = {
130 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 4,
131 .if_lvl = 1, .rfagc_top = 0x58, },
132 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
133 .if_lvl = 1, .rfagc_top = 0x58, },
136 static struct tda18271_config hcw_tda18271_config = {
137 .std_map = &hauppauge_tda18271_std_map,
138 .gate = TDA18271_GATE_DIGITAL,
141 static const struct mb86a20s_config pv_mb86a20s_config = {
142 .demod_address = 0x10,
146 static struct tda18271_config pv_tda18271_config = {
147 .std_map = &mb86a20s_tda18271_config,
148 .gate = TDA18271_GATE_DIGITAL,
149 .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
152 static const struct si2165_config hauppauge_930C_HD_1113xx_si2165_config = {
154 .chip_mode = SI2165_MODE_PLL_XTAL,
155 .ref_freq_Hz = 16000000,
158 static const struct si2165_config pctv_quatro_stick_1114xx_si2165_config = {
160 .chip_mode = SI2165_MODE_PLL_EXT,
161 .ref_freq_Hz = 24000000,
164 static struct lgdt3306a_config hauppauge_955q_lgdt3306a_config = {
169 .spectral_inversion = 1,
170 .mpeg_mode = LGDT3306A_MPEG_SERIAL,
171 .tpclk_edge = LGDT3306A_TPCLK_RISING_EDGE,
172 .tpvalid_polarity = LGDT3306A_TP_VALID_HIGH,
176 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
178 char *errmsg = "Unknown";
182 errmsg = "unlinked synchronuously";
185 errmsg = "unlinked asynchronuously";
188 errmsg = "Buffer error (overrun)";
191 errmsg = "Stalled (device not responding)";
194 errmsg = "Babble (bad cable?)";
197 errmsg = "Bit-stuff error (bad cable?)";
200 errmsg = "CRC/Timeout (could be anything)";
203 errmsg = "Device does not respond";
208 "URB status %d [%s].\n", status, errmsg);
211 "URB packet %d, status %d [%s].\n",
212 packet, status, errmsg);
216 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
223 if (dev->state & DEV_DISCONNECTED)
226 if (urb->status < 0) {
227 print_err_status(dev, -1, urb->status);
228 if (urb->status == -ENOENT)
232 for (i = 0; i < urb->number_of_packets; i++) {
233 int status = urb->iso_frame_desc[i].status;
236 print_err_status(dev, i, status);
237 if (urb->iso_frame_desc[i].status != -EPROTO)
241 dvb_dmx_swfilter(&dev->dvb->demux,
242 urb->transfer_buffer +
243 urb->iso_frame_desc[i].offset,
244 urb->iso_frame_desc[i].actual_length);
250 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
255 if (dev->state & DEV_DISCONNECTED)
258 if (urb->status < 0) {
259 print_err_status(dev, -1, urb->status);
260 if (urb->status == -ENOENT)
264 /* Feed the transport payload into the kernel demux */
265 dvb_dmx_swfilter(&dev->dvb->demux,
266 urb->transfer_buffer, urb->actual_length);
271 static int start_streaming(struct cx231xx_dvb *dvb)
274 struct cx231xx *dev = dvb->adapter.priv;
277 dev_dbg(dev->dev, "DVB transfer mode is ISO.\n");
278 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
279 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
283 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
284 CX231XX_DVB_NUM_BUFS,
285 dev->ts1_mode.max_pkt_size,
288 dev_dbg(dev->dev, "DVB transfer mode is BULK.\n");
289 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
290 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
294 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
295 CX231XX_DVB_NUM_BUFS,
296 dev->ts1_mode.max_pkt_size,
302 static int stop_streaming(struct cx231xx_dvb *dvb)
304 struct cx231xx *dev = dvb->adapter.priv;
307 cx231xx_uninit_isoc(dev);
309 cx231xx_uninit_bulk(dev);
311 cx231xx_set_mode(dev, CX231XX_SUSPEND);
316 static int start_feed(struct dvb_demux_feed *feed)
318 struct dvb_demux *demux = feed->demux;
319 struct cx231xx_dvb *dvb = demux->priv;
322 if (!demux->dmx.frontend)
325 mutex_lock(&dvb->lock);
329 if (dvb->nfeeds == 1) {
330 ret = start_streaming(dvb);
335 mutex_unlock(&dvb->lock);
339 static int stop_feed(struct dvb_demux_feed *feed)
341 struct dvb_demux *demux = feed->demux;
342 struct cx231xx_dvb *dvb = demux->priv;
345 mutex_lock(&dvb->lock);
348 if (0 == dvb->nfeeds)
349 err = stop_streaming(dvb);
351 mutex_unlock(&dvb->lock);
355 /* ------------------------------------------------------------------ */
356 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
358 struct cx231xx *dev = fe->dvb->priv;
361 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
363 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
366 /* ------------------------------------------------------------------ */
368 static struct xc5000_config cnxt_rde250_tunerconfig = {
372 static struct xc5000_config cnxt_rdu250_tunerconfig = {
377 /* ------------------------------------------------------------------ */
379 static int attach_xc5000(u8 addr, struct cx231xx *dev)
382 struct dvb_frontend *fe;
383 struct xc5000_config cfg;
385 memset(&cfg, 0, sizeof(cfg));
386 cfg.i2c_adap = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
389 if (!dev->dvb->frontend) {
390 dev_err(dev->dev, "%s/2: dvb frontend not attached. "
391 "Can't attach xc5000\n", dev->name);
395 fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
397 dev_err(dev->dev, "%s/2: xc5000 attach failed\n", dev->name);
398 dvb_frontend_detach(dev->dvb->frontend);
399 dev->dvb->frontend = NULL;
403 dev_info(dev->dev, "%s/2: xc5000 attached\n", dev->name);
409 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
411 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
413 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
415 if (dops->set_analog_params != NULL) {
416 struct analog_parameters params;
418 params.frequency = freq;
419 params.std = dev->norm;
420 params.mode = 0; /* 0- Air; 1 - cable */
421 /*params.audmode = ; */
423 /* Set the analog parameters to set the frequency */
424 dops->set_analog_params(dev->dvb->frontend, ¶ms);
432 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
436 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
438 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
440 if (dops->init != NULL && !dev->xc_fw_load_done) {
443 "Reloading firmware for XC5000\n");
444 status = dops->init(dev->dvb->frontend);
446 dev->xc_fw_load_done = 1;
448 "XC5000 firmware download completed\n");
450 dev->xc_fw_load_done = 0;
452 "XC5000 firmware download failed !!!\n");
461 /* ------------------------------------------------------------------ */
463 static int register_dvb(struct cx231xx_dvb *dvb,
464 struct module *module,
465 struct cx231xx *dev, struct device *device)
469 mutex_init(&dvb->lock);
472 /* register adapter */
473 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
477 "%s: dvb_register_adapter failed (errno = %d)\n",
481 dvb_register_media_controller(&dvb->adapter, dev->media_dev);
483 /* Ensure all frontends negotiate bus access */
484 dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
486 dvb->adapter.priv = dev;
488 /* register frontend */
489 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
492 "%s: dvb_register_frontend failed (errno = %d)\n",
497 /* register demux stuff */
498 dvb->demux.dmx.capabilities =
499 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
500 DMX_MEMORY_BASED_FILTERING;
501 dvb->demux.priv = dvb;
502 dvb->demux.filternum = 256;
503 dvb->demux.feednum = 256;
504 dvb->demux.start_feed = start_feed;
505 dvb->demux.stop_feed = stop_feed;
507 result = dvb_dmx_init(&dvb->demux);
510 "%s: dvb_dmx_init failed (errno = %d)\n",
515 dvb->dmxdev.filternum = 256;
516 dvb->dmxdev.demux = &dvb->demux.dmx;
517 dvb->dmxdev.capabilities = 0;
518 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
521 "%s: dvb_dmxdev_init failed (errno = %d)\n",
526 dvb->fe_hw.source = DMX_FRONTEND_0;
527 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
530 "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
535 dvb->fe_mem.source = DMX_MEMORY_FE;
536 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
539 "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
544 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
547 "%s: connect_frontend failed (errno = %d)\n",
552 /* register network adapter */
553 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
554 dvb_create_media_graph(&dvb->adapter);
559 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
561 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
563 dvb_dmxdev_release(&dvb->dmxdev);
565 dvb_dmx_release(&dvb->demux);
567 dvb_unregister_frontend(dvb->frontend);
569 dvb_frontend_detach(dvb->frontend);
570 dvb_unregister_adapter(&dvb->adapter);
575 static void unregister_dvb(struct cx231xx_dvb *dvb)
577 struct i2c_client *client;
578 dvb_net_release(&dvb->net);
579 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
580 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
581 dvb_dmxdev_release(&dvb->dmxdev);
582 dvb_dmx_release(&dvb->demux);
583 client = dvb->i2c_client_tuner;
584 /* remove I2C tuner */
586 module_put(client->dev.driver->owner);
587 i2c_unregister_device(client);
589 dvb_unregister_frontend(dvb->frontend);
590 dvb_frontend_detach(dvb->frontend);
591 dvb_unregister_adapter(&dvb->adapter);
594 static int dvb_init(struct cx231xx *dev)
597 struct cx231xx_dvb *dvb;
598 struct i2c_adapter *tuner_i2c;
599 struct i2c_adapter *demod_i2c;
601 if (!dev->board.has_dvb) {
602 /* This device does not support the extension */
606 dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
610 "cx231xx_dvb: memory allocation failed\n");
614 dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
615 dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
617 tuner_i2c = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
618 demod_i2c = cx231xx_get_i2c_adap(dev, dev->board.demod_i2c_master);
619 mutex_lock(&dev->lock);
620 cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
621 cx231xx_demod_reset(dev);
623 switch (dev->model) {
624 case CX231XX_BOARD_CNXT_CARRAERA:
625 case CX231XX_BOARD_CNXT_RDE_250:
627 dev->dvb->frontend = dvb_attach(s5h1432_attach,
628 &dvico_s5h1432_config,
631 if (dev->dvb->frontend == NULL) {
633 "Failed to attach s5h1432 front end\n");
638 /* define general-purpose callback pointer */
639 dvb->frontend->callback = cx231xx_tuner_callback;
641 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
643 &cnxt_rde250_tunerconfig)) {
649 case CX231XX_BOARD_CNXT_SHELBY:
650 case CX231XX_BOARD_CNXT_RDU_250:
652 dev->dvb->frontend = dvb_attach(s5h1411_attach,
653 &xc5000_s5h1411_config,
656 if (dev->dvb->frontend == NULL) {
658 "Failed to attach s5h1411 front end\n");
663 /* define general-purpose callback pointer */
664 dvb->frontend->callback = cx231xx_tuner_callback;
666 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
668 &cnxt_rdu250_tunerconfig)) {
673 case CX231XX_BOARD_CNXT_RDE_253S:
675 dev->dvb->frontend = dvb_attach(s5h1432_attach,
676 &dvico_s5h1432_config,
679 if (dev->dvb->frontend == NULL) {
681 "Failed to attach s5h1432 front end\n");
686 /* define general-purpose callback pointer */
687 dvb->frontend->callback = cx231xx_tuner_callback;
689 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
691 &cnxt_rde253s_tunerconfig)) {
696 case CX231XX_BOARD_CNXT_RDU_253S:
697 case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
699 dev->dvb->frontend = dvb_attach(s5h1411_attach,
700 &tda18271_s5h1411_config,
703 if (dev->dvb->frontend == NULL) {
705 "Failed to attach s5h1411 front end\n");
710 /* define general-purpose callback pointer */
711 dvb->frontend->callback = cx231xx_tuner_callback;
713 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
715 &cnxt_rde253s_tunerconfig)) {
720 case CX231XX_BOARD_HAUPPAUGE_EXETER:
723 "%s: looking for tuner / demod on i2c bus: %d\n",
724 __func__, i2c_adapter_id(tuner_i2c));
726 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
727 &hcw_lgdt3305_config,
730 if (dev->dvb->frontend == NULL) {
732 "Failed to attach LG3305 front end\n");
737 /* define general-purpose callback pointer */
738 dvb->frontend->callback = cx231xx_tuner_callback;
740 dvb_attach(tda18271_attach, dev->dvb->frontend,
742 &hcw_tda18271_config);
745 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
747 dev->dvb->frontend = dvb_attach(si2165_attach,
748 &hauppauge_930C_HD_1113xx_si2165_config,
752 if (dev->dvb->frontend == NULL) {
754 "Failed to attach SI2165 front end\n");
759 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
761 /* define general-purpose callback pointer */
762 dvb->frontend->callback = cx231xx_tuner_callback;
764 dvb_attach(tda18271_attach, dev->dvb->frontend,
767 &hcw_tda18271_config);
769 dev->cx231xx_reset_analog_tuner = NULL;
772 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
774 struct i2c_client *client;
775 struct i2c_board_info info;
776 struct si2157_config si2157_config;
778 memset(&info, 0, sizeof(struct i2c_board_info));
780 dev->dvb->frontend = dvb_attach(si2165_attach,
781 &pctv_quatro_stick_1114xx_si2165_config,
785 if (dev->dvb->frontend == NULL) {
787 "Failed to attach SI2165 front end\n");
792 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
794 /* define general-purpose callback pointer */
795 dvb->frontend->callback = cx231xx_tuner_callback;
798 memset(&si2157_config, 0, sizeof(si2157_config));
799 si2157_config.fe = dev->dvb->frontend;
800 si2157_config.if_port = 1;
801 si2157_config.inversion = true;
802 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
804 info.platform_data = &si2157_config;
805 request_module("si2157");
807 client = i2c_new_device(
810 if (client == NULL || client->dev.driver == NULL) {
811 dvb_frontend_detach(dev->dvb->frontend);
816 if (!try_module_get(client->dev.driver->owner)) {
817 i2c_unregister_device(client);
818 dvb_frontend_detach(dev->dvb->frontend);
823 dev->cx231xx_reset_analog_tuner = NULL;
825 dev->dvb->i2c_client_tuner = client;
828 case CX231XX_BOARD_HAUPPAUGE_955Q:
830 struct i2c_client *client;
831 struct i2c_board_info info;
832 struct si2157_config si2157_config;
834 memset(&info, 0, sizeof(struct i2c_board_info));
836 dev->dvb->frontend = dvb_attach(lgdt3306a_attach,
837 &hauppauge_955q_lgdt3306a_config,
841 if (dev->dvb->frontend == NULL) {
843 "Failed to attach LGDT3306A frontend.\n");
848 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
850 /* define general-purpose callback pointer */
851 dvb->frontend->callback = cx231xx_tuner_callback;
854 memset(&si2157_config, 0, sizeof(si2157_config));
855 si2157_config.fe = dev->dvb->frontend;
856 si2157_config.if_port = 1;
857 si2157_config.inversion = true;
858 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
860 info.platform_data = &si2157_config;
861 request_module("si2157");
863 client = i2c_new_device(
866 if (client == NULL || client->dev.driver == NULL) {
867 dvb_frontend_detach(dev->dvb->frontend);
872 if (!try_module_get(client->dev.driver->owner)) {
873 i2c_unregister_device(client);
874 dvb_frontend_detach(dev->dvb->frontend);
879 dev->cx231xx_reset_analog_tuner = NULL;
881 dev->dvb->i2c_client_tuner = client;
884 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
885 case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
888 "%s: looking for demod on i2c bus: %d\n",
889 __func__, i2c_adapter_id(tuner_i2c));
891 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
895 if (dev->dvb->frontend == NULL) {
897 "Failed to attach mb86a20s demod\n");
902 /* define general-purpose callback pointer */
903 dvb->frontend->callback = cx231xx_tuner_callback;
905 dvb_attach(tda18271_attach, dev->dvb->frontend,
907 &pv_tda18271_config);
912 "%s/2: The frontend of your DVB/ATSC card isn't supported yet\n",
916 if (NULL == dvb->frontend) {
918 "%s/2: frontend initialization failed\n", dev->name);
923 /* register everything */
924 result = register_dvb(dvb, THIS_MODULE, dev, dev->dev);
930 dev_info(dev->dev, "Successfully loaded cx231xx-dvb\n");
933 cx231xx_set_mode(dev, CX231XX_SUSPEND);
934 mutex_unlock(&dev->lock);
943 static int dvb_fini(struct cx231xx *dev)
945 if (!dev->board.has_dvb) {
946 /* This device does not support the extension */
951 unregister_dvb(dev->dvb);
958 static struct cx231xx_ops dvb_ops = {
960 .name = "Cx231xx dvb Extension",
965 static int __init cx231xx_dvb_register(void)
967 return cx231xx_register_extension(&dvb_ops);
970 static void __exit cx231xx_dvb_unregister(void)
972 cx231xx_unregister_extension(&dvb_ops);
975 module_init(cx231xx_dvb_register);
976 module_exit(cx231xx_dvb_unregister);