2 DVB device driver for em28xx
4 (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
6 (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
7 - Fixes for the driver to properly work with HVR-950
8 - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
9 - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
11 (c) 2008 Aidan Thornton <makosoft@googlemail.com>
13 Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
14 (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
15 (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License.
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>
29 #include <media/tuner.h>
30 #include "tuner-simple.h"
37 #include "mt352_priv.h" /* FIXME */
43 #include "tda18271c2dd.h"
46 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
47 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
48 MODULE_LICENSE("GPL");
50 static unsigned int debug;
51 module_param(debug, int, 0644);
52 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
54 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
56 #define dprintk(level, fmt, arg...) do { \
58 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
61 #define EM28XX_DVB_NUM_BUFS 5
62 #define EM28XX_DVB_MAX_PACKETS 64
65 struct dvb_frontend *fe[2];
67 /* feed count management */
71 /* general boilerplate stuff */
72 struct dvb_adapter adapter;
73 struct dvb_demux demux;
75 struct dmx_frontend fe_hw;
76 struct dmx_frontend fe_mem;
79 /* Due to DRX-K - probably need changes */
80 int (*gate_ctrl)(struct dvb_frontend *, int);
81 struct semaphore pll_mutex;
86 static inline void print_err_status(struct em28xx *dev,
87 int packet, int status)
89 char *errmsg = "Unknown";
93 errmsg = "unlinked synchronuously";
96 errmsg = "unlinked asynchronuously";
99 errmsg = "Buffer error (overrun)";
102 errmsg = "Stalled (device not responding)";
105 errmsg = "Babble (bad cable?)";
108 errmsg = "Bit-stuff error (bad cable?)";
111 errmsg = "CRC/Timeout (could be anything)";
114 errmsg = "Device does not respond";
118 dprintk(1, "URB status %d [%s].\n", status, errmsg);
120 dprintk(1, "URB packet %d, status %d [%s].\n",
121 packet, status, errmsg);
125 static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
132 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
135 if (urb->status < 0) {
136 print_err_status(dev, -1, urb->status);
137 if (urb->status == -ENOENT)
141 for (i = 0; i < urb->number_of_packets; i++) {
142 int status = urb->iso_frame_desc[i].status;
145 print_err_status(dev, i, status);
146 if (urb->iso_frame_desc[i].status != -EPROTO)
150 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
151 urb->iso_frame_desc[i].offset,
152 urb->iso_frame_desc[i].actual_length);
158 static int start_streaming(struct em28xx_dvb *dvb)
161 struct em28xx *dev = dvb->adapter.priv;
162 int max_dvb_packet_size;
164 usb_set_interface(dev->udev, 0, 1);
165 rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
169 max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
170 if (max_dvb_packet_size < 0)
171 return max_dvb_packet_size;
172 dprintk(1, "Using %d buffers each with %d bytes\n",
174 max_dvb_packet_size);
176 return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
177 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
181 static int stop_streaming(struct em28xx_dvb *dvb)
183 struct em28xx *dev = dvb->adapter.priv;
185 em28xx_uninit_isoc(dev);
187 em28xx_set_mode(dev, EM28XX_SUSPEND);
192 static int start_feed(struct dvb_demux_feed *feed)
194 struct dvb_demux *demux = feed->demux;
195 struct em28xx_dvb *dvb = demux->priv;
198 if (!demux->dmx.frontend)
201 mutex_lock(&dvb->lock);
205 if (dvb->nfeeds == 1) {
206 ret = start_streaming(dvb);
211 mutex_unlock(&dvb->lock);
215 static int stop_feed(struct dvb_demux_feed *feed)
217 struct dvb_demux *demux = feed->demux;
218 struct em28xx_dvb *dvb = demux->priv;
221 mutex_lock(&dvb->lock);
224 if (0 == dvb->nfeeds)
225 err = stop_streaming(dvb);
227 mutex_unlock(&dvb->lock);
233 /* ------------------------------------------------------------------ */
234 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
236 struct em28xx *dev = fe->dvb->priv;
239 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
241 return em28xx_set_mode(dev, EM28XX_SUSPEND);
244 /* ------------------------------------------------------------------ */
246 static struct lgdt330x_config em2880_lgdt3303_dev = {
247 .demod_address = 0x0e,
248 .demod_chip = LGDT3303,
251 static struct lgdt3305_config em2870_lgdt3304_dev = {
253 .demod_chip = LGDT3304,
254 .spectral_inversion = 1,
256 .mpeg_mode = LGDT3305_MPEG_PARALLEL,
257 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
258 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
263 static struct s921_config sharp_isdbt = {
264 .demod_address = 0x30 >> 1
267 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
268 .demod_address = (0x1e >> 1),
274 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
275 .demod_address = 0x32 >> 1,
276 .output_mode = S5H1409_PARALLEL_OUTPUT,
277 .gpio = S5H1409_GPIO_OFF,
278 .inversion = S5H1409_INVERSION_OFF,
279 .status_mode = S5H1409_DEMODLOCKING,
280 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
283 static struct tda18271_std_map kworld_a340_std_map = {
284 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 0,
285 .if_lvl = 1, .rfagc_top = 0x37, },
286 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 1,
287 .if_lvl = 1, .rfagc_top = 0x37, },
290 static struct tda18271_config kworld_a340_config = {
291 .std_map = &kworld_a340_std_map,
294 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
295 .demod_address = (0x1e >> 1),
297 .disable_i2c_gate_ctrl = 1,
302 static struct drxd_config em28xx_drxd = {
303 .index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
304 .demoda_address = 0x00, .pll_address = 0x00,
305 .pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
306 .pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
307 .disable_i2c_gate_ctrl = 1,
310 struct drxk_config terratec_h5_drxk = {
314 .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
317 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
319 struct em28xx_dvb *dvb = fe->sec_priv;
326 down(&dvb->pll_mutex);
327 status = dvb->gate_ctrl(fe, 1);
329 status = dvb->gate_ctrl(fe, 0);
335 static void terratec_h5_init(struct em28xx *dev)
338 struct em28xx_reg_seq terratec_h5_init[] = {
339 {EM28XX_R08_GPIO, 0xff, 0xff, 10},
340 {EM2874_R80_GPIO, 0xf6, 0xff, 100},
341 {EM2874_R80_GPIO, 0xf2, 0xff, 50},
342 {EM2874_R80_GPIO, 0xf6, 0xff, 100},
345 struct em28xx_reg_seq terratec_h5_end[] = {
346 {EM2874_R80_GPIO, 0xe6, 0xff, 100},
347 {EM2874_R80_GPIO, 0xa6, 0xff, 50},
348 {EM2874_R80_GPIO, 0xe6, 0xff, 100},
355 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
357 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
359 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
360 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
362 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
365 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
367 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
370 em28xx_gpio_set(dev, terratec_h5_init);
371 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
373 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
376 dev->i2c_client.addr = 0x82 >> 1;
378 for (i = 0; i < ARRAY_SIZE(regs); i++)
379 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
380 em28xx_gpio_set(dev, terratec_h5_end);
383 static int mt352_terratec_xs_init(struct dvb_frontend *fe)
385 /* Values extracted from a USB trace of the Terratec Windows driver */
386 static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
387 static u8 reset[] = { RESET, 0x80 };
388 static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
389 static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
390 static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
391 static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
392 static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
393 static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
394 static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
395 static u8 tuner_go[] = { TUNER_GO, 0x01};
397 mt352_write(fe, clock_config, sizeof(clock_config));
399 mt352_write(fe, reset, sizeof(reset));
400 mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
401 mt352_write(fe, agc_cfg, sizeof(agc_cfg));
402 mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
403 mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
404 mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
405 mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
406 mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
407 mt352_write(fe, tuner_go, sizeof(tuner_go));
411 static struct mt352_config terratec_xs_mt352_cfg = {
412 .demod_address = (0x1e >> 1),
415 .demod_init = mt352_terratec_xs_init,
418 static struct tda10023_config em28xx_tda10023_config = {
419 .demod_address = 0x0c,
423 static struct cxd2820r_config em28xx_cxd2820r_config = {
424 .i2c_address = (0xd8 >> 1),
425 .ts_mode = CXD2820R_TS_SERIAL,
434 /* enable LNA for DVB-T2 and DVB-C */
435 .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
436 .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
439 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
440 .output_opt = TDA18271_OUTPUT_LT_OFF,
443 /* ------------------------------------------------------------------ */
445 static int attach_xc3028(u8 addr, struct em28xx *dev)
447 struct dvb_frontend *fe;
448 struct xc2028_config cfg;
450 memset(&cfg, 0, sizeof(cfg));
451 cfg.i2c_adap = &dev->i2c_adap;
454 if (!dev->dvb->fe[0]) {
455 em28xx_errdev("/2: dvb frontend not attached. "
456 "Can't attach xc3028\n");
460 fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
462 em28xx_errdev("/2: xc3028 attach failed\n");
463 dvb_frontend_detach(dev->dvb->fe[0]);
464 dev->dvb->fe[0] = NULL;
468 em28xx_info("%s/2: xc3028 attached\n", dev->name);
473 /* ------------------------------------------------------------------ */
475 static int register_dvb(struct em28xx_dvb *dvb,
476 struct module *module,
478 struct device *device)
482 mutex_init(&dvb->lock);
484 /* register adapter */
485 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
488 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
493 /* Ensure all frontends negotiate bus access */
494 dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
496 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
498 dvb->adapter.priv = dev;
500 /* register frontend */
501 result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
503 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
508 /* register 2nd frontend */
510 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
512 printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
518 /* register demux stuff */
519 dvb->demux.dmx.capabilities =
520 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
521 DMX_MEMORY_BASED_FILTERING;
522 dvb->demux.priv = dvb;
523 dvb->demux.filternum = 256;
524 dvb->demux.feednum = 256;
525 dvb->demux.start_feed = start_feed;
526 dvb->demux.stop_feed = stop_feed;
528 result = dvb_dmx_init(&dvb->demux);
530 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
535 dvb->dmxdev.filternum = 256;
536 dvb->dmxdev.demux = &dvb->demux.dmx;
537 dvb->dmxdev.capabilities = 0;
538 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
540 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
545 dvb->fe_hw.source = DMX_FRONTEND_0;
546 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
548 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
553 dvb->fe_mem.source = DMX_MEMORY_FE;
554 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
556 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
561 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
563 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
568 /* register network adapter */
569 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
573 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
575 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
577 dvb_dmxdev_release(&dvb->dmxdev);
579 dvb_dmx_release(&dvb->demux);
582 dvb_unregister_frontend(dvb->fe[1]);
583 dvb_unregister_frontend(dvb->fe[0]);
586 dvb_frontend_detach(dvb->fe[1]);
588 dvb_frontend_detach(dvb->fe[0]);
589 dvb_unregister_adapter(&dvb->adapter);
594 static void unregister_dvb(struct em28xx_dvb *dvb)
596 dvb_net_release(&dvb->net);
597 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
598 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
599 dvb_dmxdev_release(&dvb->dmxdev);
600 dvb_dmx_release(&dvb->demux);
602 dvb_unregister_frontend(dvb->fe[1]);
603 dvb_unregister_frontend(dvb->fe[0]);
604 if (dvb->fe[1] && !dvb->dont_attach_fe1)
605 dvb_frontend_detach(dvb->fe[1]);
606 dvb_frontend_detach(dvb->fe[0]);
607 dvb_unregister_adapter(&dvb->adapter);
610 static int dvb_init(struct em28xx *dev)
613 struct em28xx_dvb *dvb;
615 if (!dev->board.has_dvb) {
616 /* This device does not support the extension */
617 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
621 dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
624 em28xx_info("em28xx_dvb: memory allocation failed\n");
628 dvb->fe[0] = dvb->fe[1] = NULL;
630 mutex_lock(&dev->lock);
631 em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
633 switch (dev->model) {
634 case EM2874_BOARD_LEADERSHIP_ISDBT:
635 dvb->fe[0] = dvb_attach(s921_attach,
636 &sharp_isdbt, &dev->i2c_adap);
644 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
645 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
646 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
647 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
648 dvb->fe[0] = dvb_attach(lgdt330x_attach,
649 &em2880_lgdt3303_dev,
651 if (attach_xc3028(0x61, dev) < 0) {
656 case EM2880_BOARD_KWORLD_DVB_310U:
657 dvb->fe[0] = dvb_attach(zl10353_attach,
658 &em28xx_zl10353_with_xc3028,
660 if (attach_xc3028(0x61, dev) < 0) {
665 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
666 case EM2882_BOARD_TERRATEC_HYBRID_XS:
667 case EM2880_BOARD_EMPIRE_DUAL_TV:
668 dvb->fe[0] = dvb_attach(zl10353_attach,
669 &em28xx_zl10353_xc3028_no_i2c_gate,
671 if (attach_xc3028(0x61, dev) < 0) {
676 case EM2880_BOARD_TERRATEC_HYBRID_XS:
677 case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
678 case EM2881_BOARD_PINNACLE_HYBRID_PRO:
679 case EM2882_BOARD_DIKOM_DK300:
680 case EM2882_BOARD_KWORLD_VS_DVBT:
681 dvb->fe[0] = dvb_attach(zl10353_attach,
682 &em28xx_zl10353_xc3028_no_i2c_gate,
684 if (dvb->fe[0] == NULL) {
685 /* This board could have either a zl10353 or a mt352.
686 If the chip id isn't for zl10353, try mt352 */
687 dvb->fe[0] = dvb_attach(mt352_attach,
688 &terratec_xs_mt352_cfg,
692 if (attach_xc3028(0x61, dev) < 0) {
697 case EM2883_BOARD_KWORLD_HYBRID_330U:
698 case EM2882_BOARD_EVGA_INDTUBE:
699 dvb->fe[0] = dvb_attach(s5h1409_attach,
700 &em28xx_s5h1409_with_xc3028,
702 if (attach_xc3028(0x61, dev) < 0) {
707 case EM2882_BOARD_KWORLD_ATSC_315U:
708 dvb->fe[0] = dvb_attach(lgdt330x_attach,
709 &em2880_lgdt3303_dev,
711 if (dvb->fe[0] != NULL) {
712 if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
713 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
719 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
720 case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
721 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
722 &dev->i2c_adap, &dev->udev->dev);
723 if (attach_xc3028(0x61, dev) < 0) {
728 case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
729 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
730 dvb->fe[0] = dvb_attach(tda10023_attach,
731 &em28xx_tda10023_config,
732 &dev->i2c_adap, 0x48);
734 if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
735 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
741 case EM2870_BOARD_KWORLD_A340:
742 dvb->fe[0] = dvb_attach(lgdt3305_attach,
743 &em2870_lgdt3304_dev,
745 if (dvb->fe[0] != NULL)
746 dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
747 &dev->i2c_adap, &kworld_a340_config);
749 case EM28174_BOARD_PCTV_290E:
751 * FE 0 = DVB-T/T2 + FE 1 = DVB-C, both sharing same tuner. */
753 dvb->fe[0] = dvb_attach(cxd2820r_attach,
754 &em28xx_cxd2820r_config, &dev->i2c_adap, NULL);
756 struct i2c_adapter *i2c_tuner;
757 i2c_tuner = cxd2820r_get_tuner_i2c_adapter(dvb->fe[0]);
758 /* FE 0 attach tuner */
759 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
760 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
761 dvb_frontend_detach(dvb->fe[0]);
765 /* FE 1. This dvb_attach() cannot fail. */
766 dvb->fe[1] = dvb_attach(cxd2820r_attach, NULL, NULL,
769 /* FE 1 attach tuner */
770 if (!dvb_attach(tda18271_attach, dvb->fe[1], 0x60,
771 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
772 dvb_frontend_detach(dvb->fe[1]);
773 /* leave FE 0 still active */
777 case EM2884_BOARD_TERRATEC_H5:
778 terratec_h5_init(dev);
780 dvb->dont_attach_fe1 = 1;
782 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap, &dvb->fe[1]);
788 /* FIXME: do we need a pll semaphore? */
789 dvb->fe[0]->sec_priv = dvb;
790 sema_init(&dvb->pll_mutex, 1);
791 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
792 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
795 /* Attach tda18271 to DVB-C frontend */
796 if (dvb->fe[0]->ops.i2c_gate_ctrl)
797 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
798 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
802 if (dvb->fe[0]->ops.i2c_gate_ctrl)
803 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
805 /* Hack - needed by drxk/tda18271c2dd */
806 dvb->fe[1]->tuner_priv = dvb->fe[0]->tuner_priv;
807 memcpy(&dvb->fe[1]->ops.tuner_ops,
808 &dvb->fe[0]->ops.tuner_ops,
809 sizeof(dvb->fe[0]->ops.tuner_ops));
813 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
814 " isn't supported yet\n");
817 if (NULL == dvb->fe[0]) {
818 em28xx_errdev("/2: frontend initialization failed\n");
822 /* define general-purpose callback pointer */
823 dvb->fe[0]->callback = em28xx_tuner_callback;
825 /* register everything */
826 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
831 em28xx_info("Successfully loaded em28xx-dvb\n");
833 em28xx_set_mode(dev, EM28XX_SUSPEND);
834 mutex_unlock(&dev->lock);
843 static int dvb_fini(struct em28xx *dev)
845 if (!dev->board.has_dvb) {
846 /* This device does not support the extension */
851 unregister_dvb(dev->dvb);
859 static struct em28xx_ops dvb_ops = {
861 .name = "Em28xx dvb Extension",
866 static int __init em28xx_dvb_register(void)
868 return em28xx_register_extension(&dvb_ops);
871 static void __exit em28xx_dvb_unregister(void)
873 em28xx_unregister_extension(&dvb_ops);
876 module_init(em28xx_dvb_register);
877 module_exit(em28xx_dvb_unregister);