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.
22 #include <linux/kernel.h>
23 #include <linux/slab.h>
24 #include <linux/usb.h>
27 #include <media/v4l2-common.h>
28 #include <media/videobuf-vmalloc.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 dprintk(level, fmt, arg...) do { \
51 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
54 #define CX231XX_DVB_NUM_BUFS 5
55 #define CX231XX_DVB_MAX_PACKETSIZE 564
56 #define CX231XX_DVB_MAX_PACKETS 64
59 struct dvb_frontend *frontend;
61 /* feed count management */
65 /* general boilerplate stuff */
66 struct dvb_adapter adapter;
67 struct dvb_demux demux;
69 struct dmx_frontend fe_hw;
70 struct dmx_frontend fe_mem;
72 struct i2c_client *i2c_client_tuner;
75 static struct s5h1432_config dvico_s5h1432_config = {
76 .output_mode = S5H1432_SERIAL_OUTPUT,
77 .gpio = S5H1432_GPIO_ON,
78 .qam_if = S5H1432_IF_4000,
79 .vsb_if = S5H1432_IF_4000,
80 .inversion = S5H1432_INVERSION_OFF,
81 .status_mode = S5H1432_DEMODLOCKING,
82 .mpeg_timing = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
85 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
86 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
87 .if_lvl = 1, .rfagc_top = 0x37, },
88 .dvbt_7 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
89 .if_lvl = 1, .rfagc_top = 0x37, },
90 .dvbt_8 = { .if_freq = 4000, .agc_mode = 3, .std = 6,
91 .if_lvl = 1, .rfagc_top = 0x37, },
94 static struct tda18271_std_map mb86a20s_tda18271_config = {
95 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
96 .if_lvl = 0, .rfagc_top = 0x37, },
99 static struct tda18271_config cnxt_rde253s_tunerconfig = {
100 .std_map = &cnxt_rde253s_tda18271_std_map,
101 .gate = TDA18271_GATE_ANALOG,
104 static struct s5h1411_config tda18271_s5h1411_config = {
105 .output_mode = S5H1411_SERIAL_OUTPUT,
106 .gpio = S5H1411_GPIO_OFF,
107 .vsb_if = S5H1411_IF_3250,
108 .qam_if = S5H1411_IF_4000,
109 .inversion = S5H1411_INVERSION_ON,
110 .status_mode = S5H1411_DEMODLOCKING,
111 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
113 static struct s5h1411_config xc5000_s5h1411_config = {
114 .output_mode = S5H1411_SERIAL_OUTPUT,
115 .gpio = S5H1411_GPIO_OFF,
116 .vsb_if = S5H1411_IF_3250,
117 .qam_if = S5H1411_IF_3250,
118 .inversion = S5H1411_INVERSION_OFF,
119 .status_mode = S5H1411_DEMODLOCKING,
120 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
123 static struct lgdt3305_config hcw_lgdt3305_config = {
125 .mpeg_mode = LGDT3305_MPEG_SERIAL,
126 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
127 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
129 .spectral_inversion = 1,
134 static struct tda18271_std_map hauppauge_tda18271_std_map = {
135 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 4,
136 .if_lvl = 1, .rfagc_top = 0x58, },
137 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
138 .if_lvl = 1, .rfagc_top = 0x58, },
141 static struct tda18271_config hcw_tda18271_config = {
142 .std_map = &hauppauge_tda18271_std_map,
143 .gate = TDA18271_GATE_DIGITAL,
146 static const struct mb86a20s_config pv_mb86a20s_config = {
147 .demod_address = 0x10,
151 static struct tda18271_config pv_tda18271_config = {
152 .std_map = &mb86a20s_tda18271_config,
153 .gate = TDA18271_GATE_DIGITAL,
154 .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
157 static const struct si2165_config hauppauge_930C_HD_1113xx_si2165_config = {
159 .chip_mode = SI2165_MODE_PLL_XTAL,
160 .ref_freq_Hz = 16000000,
163 static const struct si2165_config pctv_quatro_stick_1114xx_si2165_config = {
165 .chip_mode = SI2165_MODE_PLL_EXT,
166 .ref_freq_Hz = 24000000,
169 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
171 char *errmsg = "Unknown";
175 errmsg = "unlinked synchronuously";
178 errmsg = "unlinked asynchronuously";
181 errmsg = "Buffer error (overrun)";
184 errmsg = "Stalled (device not responding)";
187 errmsg = "Babble (bad cable?)";
190 errmsg = "Bit-stuff error (bad cable?)";
193 errmsg = "CRC/Timeout (could be anything)";
196 errmsg = "Device does not respond";
200 dprintk(1, "URB status %d [%s].\n", status, errmsg);
202 dprintk(1, "URB packet %d, status %d [%s].\n",
203 packet, status, errmsg);
207 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
214 if (dev->state & DEV_DISCONNECTED)
217 if (urb->status < 0) {
218 print_err_status(dev, -1, urb->status);
219 if (urb->status == -ENOENT)
223 for (i = 0; i < urb->number_of_packets; i++) {
224 int status = urb->iso_frame_desc[i].status;
227 print_err_status(dev, i, status);
228 if (urb->iso_frame_desc[i].status != -EPROTO)
232 dvb_dmx_swfilter(&dev->dvb->demux,
233 urb->transfer_buffer +
234 urb->iso_frame_desc[i].offset,
235 urb->iso_frame_desc[i].actual_length);
241 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
246 if (dev->state & DEV_DISCONNECTED)
249 if (urb->status < 0) {
250 print_err_status(dev, -1, urb->status);
251 if (urb->status == -ENOENT)
255 /* Feed the transport payload into the kernel demux */
256 dvb_dmx_swfilter(&dev->dvb->demux,
257 urb->transfer_buffer, urb->actual_length);
262 static int start_streaming(struct cx231xx_dvb *dvb)
265 struct cx231xx *dev = dvb->adapter.priv;
268 cx231xx_info("DVB transfer mode is ISO.\n");
269 mutex_lock(&dev->i2c_lock);
270 cx231xx_enable_i2c_port_3(dev, false);
271 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
272 cx231xx_enable_i2c_port_3(dev, true);
273 mutex_unlock(&dev->i2c_lock);
274 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
278 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
279 CX231XX_DVB_NUM_BUFS,
280 dev->ts1_mode.max_pkt_size,
283 cx231xx_info("DVB transfer mode is BULK.\n");
284 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
285 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
289 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
290 CX231XX_DVB_NUM_BUFS,
291 dev->ts1_mode.max_pkt_size,
297 static int stop_streaming(struct cx231xx_dvb *dvb)
299 struct cx231xx *dev = dvb->adapter.priv;
302 cx231xx_uninit_isoc(dev);
304 cx231xx_uninit_bulk(dev);
306 cx231xx_set_mode(dev, CX231XX_SUSPEND);
311 static int start_feed(struct dvb_demux_feed *feed)
313 struct dvb_demux *demux = feed->demux;
314 struct cx231xx_dvb *dvb = demux->priv;
317 if (!demux->dmx.frontend)
320 mutex_lock(&dvb->lock);
324 if (dvb->nfeeds == 1) {
325 ret = start_streaming(dvb);
330 mutex_unlock(&dvb->lock);
334 static int stop_feed(struct dvb_demux_feed *feed)
336 struct dvb_demux *demux = feed->demux;
337 struct cx231xx_dvb *dvb = demux->priv;
340 mutex_lock(&dvb->lock);
343 if (0 == dvb->nfeeds)
344 err = stop_streaming(dvb);
346 mutex_unlock(&dvb->lock);
350 /* ------------------------------------------------------------------ */
351 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
353 struct cx231xx *dev = fe->dvb->priv;
356 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
358 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
361 /* ------------------------------------------------------------------ */
363 static struct xc5000_config cnxt_rde250_tunerconfig = {
367 static struct xc5000_config cnxt_rdu250_tunerconfig = {
372 /* ------------------------------------------------------------------ */
374 static int attach_xc5000(u8 addr, struct cx231xx *dev)
377 struct dvb_frontend *fe;
378 struct xc5000_config cfg;
380 memset(&cfg, 0, sizeof(cfg));
381 cfg.i2c_adap = &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap;
384 if (!dev->dvb->frontend) {
385 printk(KERN_ERR "%s/2: dvb frontend not attached. "
386 "Can't attach xc5000\n", dev->name);
390 fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
392 printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
393 dvb_frontend_detach(dev->dvb->frontend);
394 dev->dvb->frontend = NULL;
398 printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
404 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
406 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
408 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
410 if (dops->set_analog_params != NULL) {
411 struct analog_parameters params;
413 params.frequency = freq;
414 params.std = dev->norm;
415 params.mode = 0; /* 0- Air; 1 - cable */
416 /*params.audmode = ; */
418 /* Set the analog parameters to set the frequency */
419 dops->set_analog_params(dev->dvb->frontend, ¶ms);
427 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
431 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
433 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
435 if (dops->init != NULL && !dev->xc_fw_load_done) {
437 cx231xx_info("Reloading firmware for XC5000\n");
438 status = dops->init(dev->dvb->frontend);
440 dev->xc_fw_load_done = 1;
442 ("XC5000 firmware download completed\n");
444 dev->xc_fw_load_done = 0;
446 ("XC5000 firmware download failed !!!\n");
455 /* ------------------------------------------------------------------ */
457 static int register_dvb(struct cx231xx_dvb *dvb,
458 struct module *module,
459 struct cx231xx *dev, struct device *device)
463 mutex_init(&dvb->lock);
465 /* register adapter */
466 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
470 "%s: dvb_register_adapter failed (errno = %d)\n",
475 /* Ensure all frontends negotiate bus access */
476 dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
478 dvb->adapter.priv = dev;
480 /* register frontend */
481 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
484 "%s: dvb_register_frontend failed (errno = %d)\n",
489 /* register demux stuff */
490 dvb->demux.dmx.capabilities =
491 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
492 DMX_MEMORY_BASED_FILTERING;
493 dvb->demux.priv = dvb;
494 dvb->demux.filternum = 256;
495 dvb->demux.feednum = 256;
496 dvb->demux.start_feed = start_feed;
497 dvb->demux.stop_feed = stop_feed;
499 result = dvb_dmx_init(&dvb->demux);
501 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
506 dvb->dmxdev.filternum = 256;
507 dvb->dmxdev.demux = &dvb->demux.dmx;
508 dvb->dmxdev.capabilities = 0;
509 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
511 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
516 dvb->fe_hw.source = DMX_FRONTEND_0;
517 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
520 "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
525 dvb->fe_mem.source = DMX_MEMORY_FE;
526 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
529 "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
534 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
537 "%s: connect_frontend failed (errno = %d)\n", dev->name,
542 /* register network adapter */
543 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
547 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
549 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
551 dvb_dmxdev_release(&dvb->dmxdev);
553 dvb_dmx_release(&dvb->demux);
555 dvb_unregister_frontend(dvb->frontend);
557 dvb_frontend_detach(dvb->frontend);
558 dvb_unregister_adapter(&dvb->adapter);
563 static void unregister_dvb(struct cx231xx_dvb *dvb)
565 struct i2c_client *client;
566 dvb_net_release(&dvb->net);
567 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
568 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
569 dvb_dmxdev_release(&dvb->dmxdev);
570 dvb_dmx_release(&dvb->demux);
571 client = dvb->i2c_client_tuner;
572 /* remove I2C tuner */
574 module_put(client->dev.driver->owner);
575 i2c_unregister_device(client);
577 dvb_unregister_frontend(dvb->frontend);
578 dvb_frontend_detach(dvb->frontend);
579 dvb_unregister_adapter(&dvb->adapter);
582 static int dvb_init(struct cx231xx *dev)
585 struct cx231xx_dvb *dvb;
587 if (!dev->board.has_dvb) {
588 /* This device does not support the extension */
592 dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
595 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
599 dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
600 dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
602 mutex_lock(&dev->lock);
603 cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
604 cx231xx_demod_reset(dev);
606 switch (dev->model) {
607 case CX231XX_BOARD_CNXT_CARRAERA:
608 case CX231XX_BOARD_CNXT_RDE_250:
610 dev->dvb->frontend = dvb_attach(s5h1432_attach,
611 &dvico_s5h1432_config,
612 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
614 if (dev->dvb->frontend == NULL) {
616 ": Failed to attach s5h1432 front end\n");
621 /* define general-purpose callback pointer */
622 dvb->frontend->callback = cx231xx_tuner_callback;
624 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
625 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
626 &cnxt_rde250_tunerconfig)) {
632 case CX231XX_BOARD_CNXT_SHELBY:
633 case CX231XX_BOARD_CNXT_RDU_250:
635 dev->dvb->frontend = dvb_attach(s5h1411_attach,
636 &xc5000_s5h1411_config,
637 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
639 if (dev->dvb->frontend == NULL) {
641 ": Failed to attach s5h1411 front end\n");
646 /* define general-purpose callback pointer */
647 dvb->frontend->callback = cx231xx_tuner_callback;
649 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
650 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
651 &cnxt_rdu250_tunerconfig)) {
656 case CX231XX_BOARD_CNXT_RDE_253S:
658 dev->dvb->frontend = dvb_attach(s5h1432_attach,
659 &dvico_s5h1432_config,
660 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
662 if (dev->dvb->frontend == NULL) {
664 ": Failed to attach s5h1432 front end\n");
669 /* define general-purpose callback pointer */
670 dvb->frontend->callback = cx231xx_tuner_callback;
672 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
673 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
674 &cnxt_rde253s_tunerconfig)) {
679 case CX231XX_BOARD_CNXT_RDU_253S:
680 case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
682 dev->dvb->frontend = dvb_attach(s5h1411_attach,
683 &tda18271_s5h1411_config,
684 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
686 if (dev->dvb->frontend == NULL) {
688 ": Failed to attach s5h1411 front end\n");
693 /* define general-purpose callback pointer */
694 dvb->frontend->callback = cx231xx_tuner_callback;
696 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
697 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
698 &cnxt_rde253s_tunerconfig)) {
703 case CX231XX_BOARD_HAUPPAUGE_EXETER:
705 printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
706 __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
708 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
709 &hcw_lgdt3305_config,
710 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
712 if (dev->dvb->frontend == NULL) {
714 ": Failed to attach LG3305 front end\n");
719 /* define general-purpose callback pointer */
720 dvb->frontend->callback = cx231xx_tuner_callback;
722 dvb_attach(tda18271_attach, dev->dvb->frontend,
723 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
724 &hcw_tda18271_config);
727 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
729 dev->dvb->frontend = dvb_attach(si2165_attach,
730 &hauppauge_930C_HD_1113xx_si2165_config,
731 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
734 if (dev->dvb->frontend == NULL) {
736 ": Failed to attach SI2165 front end\n");
741 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
743 /* define general-purpose callback pointer */
744 dvb->frontend->callback = cx231xx_tuner_callback;
746 dvb_attach(tda18271_attach, dev->dvb->frontend,
748 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
749 &hcw_tda18271_config);
751 dev->cx231xx_reset_analog_tuner = NULL;
754 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
756 struct i2c_client *client;
757 struct i2c_board_info info;
758 struct si2157_config si2157_config;
760 memset(&info, 0, sizeof(struct i2c_board_info));
762 dev->dvb->frontend = dvb_attach(si2165_attach,
763 &pctv_quatro_stick_1114xx_si2165_config,
764 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
767 if (dev->dvb->frontend == NULL) {
769 ": Failed to attach SI2165 front end\n");
774 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
776 /* define general-purpose callback pointer */
777 dvb->frontend->callback = cx231xx_tuner_callback;
780 memset(&si2157_config, 0, sizeof(si2157_config));
781 si2157_config.fe = dev->dvb->frontend;
782 si2157_config.inversion = true;
783 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
785 info.platform_data = &si2157_config;
786 request_module("si2157");
788 client = i2c_new_device(
789 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
791 if (client == NULL || client->dev.driver == NULL) {
792 dvb_frontend_detach(dev->dvb->frontend);
797 if (!try_module_get(client->dev.driver->owner)) {
798 i2c_unregister_device(client);
799 dvb_frontend_detach(dev->dvb->frontend);
804 dev->cx231xx_reset_analog_tuner = NULL;
806 dev->dvb->i2c_client_tuner = client;
810 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
811 case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
813 printk(KERN_INFO "%s: looking for demod on i2c bus: %d\n",
814 __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
816 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
818 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
820 if (dev->dvb->frontend == NULL) {
822 ": Failed to attach mb86a20s demod\n");
827 /* define general-purpose callback pointer */
828 dvb->frontend->callback = cx231xx_tuner_callback;
830 dvb_attach(tda18271_attach, dev->dvb->frontend,
831 0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
832 &pv_tda18271_config);
836 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
837 " isn't supported yet\n", dev->name);
840 if (NULL == dvb->frontend) {
842 "%s/2: frontend initialization failed\n", dev->name);
847 /* register everything */
848 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
854 printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
857 cx231xx_set_mode(dev, CX231XX_SUSPEND);
858 mutex_unlock(&dev->lock);
867 static int dvb_fini(struct cx231xx *dev)
869 if (!dev->board.has_dvb) {
870 /* This device does not support the extension */
875 unregister_dvb(dev->dvb);
882 static struct cx231xx_ops dvb_ops = {
884 .name = "Cx231xx dvb Extension",
889 static int __init cx231xx_dvb_register(void)
891 return cx231xx_register_extension(&dvb_ops);
894 static void __exit cx231xx_dvb_unregister(void)
896 cx231xx_unregister_extension(&dvb_ops);
899 module_init(cx231xx_dvb_register);
900 module_exit(cx231xx_dvb_unregister);