1 /*
2  DVB device driver for em28xx
3 
4  (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
5 
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
10 
11  (c) 2008 Aidan Thornton <makosoft@googlemail.com>
12 
13  (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
14 
15  Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
16 	(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
17 	(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
18 
19  This program is free software; you can redistribute it and/or modify
20  it under the terms of the GNU General Public License as published by
21  the Free Software Foundation; either version 2 of the License.
22  */
23 
24 #include <linux/kernel.h>
25 #include <linux/slab.h>
26 #include <linux/usb.h>
27 
28 #include "em28xx.h"
29 #include <media/v4l2-common.h>
30 #include <dvb_demux.h>
31 #include <dvb_net.h>
32 #include <dmxdev.h>
33 #include <media/tuner.h>
34 #include "tuner-simple.h"
35 #include <linux/gpio.h>
36 
37 #include "lgdt330x.h"
38 #include "lgdt3305.h"
39 #include "zl10353.h"
40 #include "s5h1409.h"
41 #include "mt352.h"
42 #include "mt352_priv.h" /* FIXME */
43 #include "tda1002x.h"
44 #include "drx39xyj/drx39xxj.h"
45 #include "tda18271.h"
46 #include "s921.h"
47 #include "drxd.h"
48 #include "cxd2820r.h"
49 #include "tda18271c2dd.h"
50 #include "drxk.h"
51 #include "tda10071.h"
52 #include "tda18212.h"
53 #include "a8293.h"
54 #include "qt1010.h"
55 #include "mb86a20s.h"
56 #include "m88ds3103.h"
57 #include "m88ts2022.h"
58 
59 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
60 MODULE_LICENSE("GPL");
61 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
62 MODULE_VERSION(EM28XX_VERSION);
63 
64 
65 static unsigned int debug;
66 module_param(debug, int, 0644);
67 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
68 
69 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
70 
71 #define dprintk(level, fmt, arg...) do {			\
72 if (debug >= level) 						\
73 	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg);	\
74 } while (0)
75 
76 struct em28xx_dvb {
77 	struct dvb_frontend        *fe[2];
78 
79 	/* feed count management */
80 	struct mutex               lock;
81 	int                        nfeeds;
82 
83 	/* general boilerplate stuff */
84 	struct dvb_adapter         adapter;
85 	struct dvb_demux           demux;
86 	struct dmxdev              dmxdev;
87 	struct dmx_frontend        fe_hw;
88 	struct dmx_frontend        fe_mem;
89 	struct dvb_net             net;
90 
91 	/* Due to DRX-K - probably need changes */
92 	int (*gate_ctrl)(struct dvb_frontend *, int);
93 	struct semaphore      pll_mutex;
94 	bool			dont_attach_fe1;
95 	int			lna_gpio;
96 	struct i2c_client	*i2c_client_tuner;
97 };
98 
99 
100 static inline void print_err_status(struct em28xx *dev,
101 				     int packet, int status)
102 {
103 	char *errmsg = "Unknown";
104 
105 	switch (status) {
106 	case -ENOENT:
107 		errmsg = "unlinked synchronuously";
108 		break;
109 	case -ECONNRESET:
110 		errmsg = "unlinked asynchronuously";
111 		break;
112 	case -ENOSR:
113 		errmsg = "Buffer error (overrun)";
114 		break;
115 	case -EPIPE:
116 		errmsg = "Stalled (device not responding)";
117 		break;
118 	case -EOVERFLOW:
119 		errmsg = "Babble (bad cable?)";
120 		break;
121 	case -EPROTO:
122 		errmsg = "Bit-stuff error (bad cable?)";
123 		break;
124 	case -EILSEQ:
125 		errmsg = "CRC/Timeout (could be anything)";
126 		break;
127 	case -ETIME:
128 		errmsg = "Device does not respond";
129 		break;
130 	}
131 	if (packet < 0) {
132 		dprintk(1, "URB status %d [%s].\n", status, errmsg);
133 	} else {
134 		dprintk(1, "URB packet %d, status %d [%s].\n",
135 			packet, status, errmsg);
136 	}
137 }
138 
139 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
140 {
141 	int xfer_bulk, num_packets, i;
142 
143 	if (!dev)
144 		return 0;
145 
146 	if (dev->disconnected)
147 		return 0;
148 
149 	if (urb->status < 0)
150 		print_err_status(dev, -1, urb->status);
151 
152 	xfer_bulk = usb_pipebulk(urb->pipe);
153 
154 	if (xfer_bulk) /* bulk */
155 		num_packets = 1;
156 	else /* isoc */
157 		num_packets = urb->number_of_packets;
158 
159 	for (i = 0; i < num_packets; i++) {
160 		if (xfer_bulk) {
161 			if (urb->status < 0) {
162 				print_err_status(dev, i, urb->status);
163 				if (urb->status != -EPROTO)
164 					continue;
165 			}
166 			if (!urb->actual_length)
167 				continue;
168 			dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
169 					urb->actual_length);
170 		} else {
171 			if (urb->iso_frame_desc[i].status < 0) {
172 				print_err_status(dev, i,
173 						 urb->iso_frame_desc[i].status);
174 				if (urb->iso_frame_desc[i].status != -EPROTO)
175 					continue;
176 			}
177 			if (!urb->iso_frame_desc[i].actual_length)
178 				continue;
179 			dvb_dmx_swfilter(&dev->dvb->demux,
180 					 urb->transfer_buffer +
181 					 urb->iso_frame_desc[i].offset,
182 					 urb->iso_frame_desc[i].actual_length);
183 		}
184 	}
185 
186 	return 0;
187 }
188 
189 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
190 {
191 	int rc;
192 	struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
193 	struct em28xx *dev = i2c_bus->dev;
194 	int dvb_max_packet_size, packet_multiplier, dvb_alt;
195 
196 	if (dev->dvb_xfer_bulk) {
197 		if (!dev->dvb_ep_bulk)
198 			return -ENODEV;
199 		dvb_max_packet_size = 512; /* USB 2.0 spec */
200 		packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
201 		dvb_alt = 0;
202 	} else { /* isoc */
203 		if (!dev->dvb_ep_isoc)
204 			return -ENODEV;
205 		dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
206 		if (dvb_max_packet_size < 0)
207 			return dvb_max_packet_size;
208 		packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
209 		dvb_alt = dev->dvb_alt_isoc;
210 	}
211 
212 	usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
213 	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
214 	if (rc < 0)
215 		return rc;
216 
217 	dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
218 		EM28XX_DVB_NUM_BUFS,
219 		packet_multiplier,
220 		dvb_max_packet_size, dvb_alt);
221 
222 	return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
223 				    dev->dvb_xfer_bulk,
224 				    EM28XX_DVB_NUM_BUFS,
225 				    dvb_max_packet_size,
226 				    packet_multiplier,
227 				    em28xx_dvb_urb_data_copy);
228 }
229 
230 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
231 {
232 	struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
233 	struct em28xx *dev = i2c_bus->dev;
234 
235 	em28xx_stop_urbs(dev);
236 
237 	return 0;
238 }
239 
240 static int em28xx_start_feed(struct dvb_demux_feed *feed)
241 {
242 	struct dvb_demux *demux  = feed->demux;
243 	struct em28xx_dvb *dvb = demux->priv;
244 	int rc, ret;
245 
246 	if (!demux->dmx.frontend)
247 		return -EINVAL;
248 
249 	mutex_lock(&dvb->lock);
250 	dvb->nfeeds++;
251 	rc = dvb->nfeeds;
252 
253 	if (dvb->nfeeds == 1) {
254 		ret = em28xx_start_streaming(dvb);
255 		if (ret < 0)
256 			rc = ret;
257 	}
258 
259 	mutex_unlock(&dvb->lock);
260 	return rc;
261 }
262 
263 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
264 {
265 	struct dvb_demux *demux  = feed->demux;
266 	struct em28xx_dvb *dvb = demux->priv;
267 	int err = 0;
268 
269 	mutex_lock(&dvb->lock);
270 	dvb->nfeeds--;
271 
272 	if (0 == dvb->nfeeds)
273 		err = em28xx_stop_streaming(dvb);
274 
275 	mutex_unlock(&dvb->lock);
276 	return err;
277 }
278 
279 
280 
281 /* ------------------------------------------------------------------ */
282 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
283 {
284 	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
285 	struct em28xx *dev = i2c_bus->dev;
286 
287 	if (acquire)
288 		return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
289 	else
290 		return em28xx_set_mode(dev, EM28XX_SUSPEND);
291 }
292 
293 /* ------------------------------------------------------------------ */
294 
295 static struct lgdt330x_config em2880_lgdt3303_dev = {
296 	.demod_address = 0x0e,
297 	.demod_chip = LGDT3303,
298 };
299 
300 static struct lgdt3305_config em2870_lgdt3304_dev = {
301 	.i2c_addr           = 0x0e,
302 	.demod_chip         = LGDT3304,
303 	.spectral_inversion = 1,
304 	.deny_i2c_rptr      = 1,
305 	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,
306 	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
307 	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
308 	.vsb_if_khz         = 3250,
309 	.qam_if_khz         = 4000,
310 };
311 
312 static struct lgdt3305_config em2874_lgdt3305_dev = {
313 	.i2c_addr           = 0x0e,
314 	.demod_chip         = LGDT3305,
315 	.spectral_inversion = 1,
316 	.deny_i2c_rptr      = 0,
317 	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
318 	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
319 	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
320 	.vsb_if_khz         = 3250,
321 	.qam_if_khz         = 4000,
322 };
323 
324 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
325 	.i2c_addr           = 0x0e,
326 	.demod_chip         = LGDT3305,
327 	.spectral_inversion = 1,
328 	.deny_i2c_rptr      = 1,
329 	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
330 	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
331 	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
332 	.vsb_if_khz         = 3600,
333 	.qam_if_khz         = 3600,
334 };
335 
336 static struct s921_config sharp_isdbt = {
337 	.demod_address = 0x30 >> 1
338 };
339 
340 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
341 	.demod_address = (0x1e >> 1),
342 	.no_tuner = 1,
343 	.parallel_ts = 1,
344 	.if2 = 45600,
345 };
346 
347 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
348 	.demod_address = 0x32 >> 1,
349 	.output_mode   = S5H1409_PARALLEL_OUTPUT,
350 	.gpio          = S5H1409_GPIO_OFF,
351 	.inversion     = S5H1409_INVERSION_OFF,
352 	.status_mode   = S5H1409_DEMODLOCKING,
353 	.mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
354 };
355 
356 static struct tda18271_std_map kworld_a340_std_map = {
357 	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
358 		      .if_lvl = 1, .rfagc_top = 0x37, },
359 	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
360 		      .if_lvl = 1, .rfagc_top = 0x37, },
361 };
362 
363 static struct tda18271_config kworld_a340_config = {
364 	.std_map           = &kworld_a340_std_map,
365 };
366 
367 static struct tda18271_config kworld_ub435q_v2_config = {
368 	.std_map	= &kworld_a340_std_map,
369 	.gate		= TDA18271_GATE_DIGITAL,
370 };
371 
372 static struct tda18212_config kworld_ub435q_v3_config = {
373 	.i2c_address	= 0x60,
374 	.if_atsc_vsb	= 3600,
375 	.if_atsc_qam	= 3600,
376 };
377 
378 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
379 	.demod_address = (0x1e >> 1),
380 	.no_tuner = 1,
381 	.disable_i2c_gate_ctrl = 1,
382 	.parallel_ts = 1,
383 	.if2 = 45600,
384 };
385 
386 static struct drxd_config em28xx_drxd = {
387 	.demod_address = 0x70,
388 	.demod_revision = 0xa2,
389 	.pll_type = DRXD_PLL_NONE,
390 	.clock = 12000,
391 	.insert_rs_byte = 1,
392 	.IF = 42800000,
393 	.disable_i2c_gate_ctrl = 1,
394 };
395 
396 static struct drxk_config terratec_h5_drxk = {
397 	.adr = 0x29,
398 	.single_master = 1,
399 	.no_i2c_bridge = 1,
400 	.microcode_name = "dvb-usb-terratec-h5-drxk.fw",
401 	.qam_demod_parameter_count = 2,
402 };
403 
404 static struct drxk_config hauppauge_930c_drxk = {
405 	.adr = 0x29,
406 	.single_master = 1,
407 	.no_i2c_bridge = 1,
408 	.microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
409 	.chunk_size = 56,
410 	.qam_demod_parameter_count = 2,
411 };
412 
413 static struct drxk_config terratec_htc_stick_drxk = {
414 	.adr = 0x29,
415 	.single_master = 1,
416 	.no_i2c_bridge = 1,
417 	.microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
418 	.chunk_size = 54,
419 	.qam_demod_parameter_count = 2,
420 	/* Required for the antenna_gpio to disable LNA. */
421 	.antenna_dvbt = true,
422 	/* The windows driver uses the same. This will disable LNA. */
423 	.antenna_gpio = 0x6,
424 };
425 
426 static struct drxk_config maxmedia_ub425_tc_drxk = {
427 	.adr = 0x29,
428 	.single_master = 1,
429 	.no_i2c_bridge = 1,
430 	.microcode_name = "dvb-demod-drxk-01.fw",
431 	.chunk_size = 62,
432 	.qam_demod_parameter_count = 2,
433 };
434 
435 static struct drxk_config pctv_520e_drxk = {
436 	.adr = 0x29,
437 	.single_master = 1,
438 	.microcode_name = "dvb-demod-drxk-pctv.fw",
439 	.qam_demod_parameter_count = 2,
440 	.chunk_size = 58,
441 	.antenna_dvbt = true, /* disable LNA */
442 	.antenna_gpio = (1 << 2), /* disable LNA */
443 };
444 
445 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
446 {
447 	struct em28xx_dvb *dvb = fe->sec_priv;
448 	int status;
449 
450 	if (!dvb)
451 		return -EINVAL;
452 
453 	if (enable) {
454 		down(&dvb->pll_mutex);
455 		status = dvb->gate_ctrl(fe, 1);
456 	} else {
457 		status = dvb->gate_ctrl(fe, 0);
458 		up(&dvb->pll_mutex);
459 	}
460 	return status;
461 }
462 
463 static void hauppauge_hvr930c_init(struct em28xx *dev)
464 {
465 	int i;
466 
467 	struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
468 		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0x65},
469 		{EM2874_R80_GPIO_P0_CTRL,	0xfb,	0xff,	0x32},
470 		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0xb8},
471 		{	-1,			-1,	-1,	-1},
472 	};
473 	struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
474 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x01},
475 		{EM2874_R80_GPIO_P0_CTRL,	0xaf,	0xff,	0x65},
476 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x76},
477 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x01},
478 		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x0b},
479 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x40},
480 
481 		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x65},
482 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x65},
483 		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x0b},
484 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x65},
485 
486 		{	-1,			-1,	-1,	-1},
487 	};
488 
489 	struct {
490 		unsigned char r[4];
491 		int len;
492 	} regs[] = {
493 		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
494 		{{ 0x01, 0x02 }, 2},
495 		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
496 		{{ 0x01, 0x00 }, 2},
497 		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
498 		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
499 		{{ 0x01, 0x00 }, 2},
500 		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
501 		{{ 0x04, 0x00 }, 2},
502 		{{ 0x00, 0x04 }, 2},
503 		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
504 		{{ 0x04, 0x14 }, 2},
505 		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
506 	};
507 
508 	em28xx_gpio_set(dev, hauppauge_hvr930c_init);
509 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
510 	msleep(10);
511 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
512 	msleep(10);
513 
514 	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
515 
516 	for (i = 0; i < ARRAY_SIZE(regs); i++)
517 		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
518 	em28xx_gpio_set(dev, hauppauge_hvr930c_end);
519 
520 	msleep(100);
521 
522 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
523 	msleep(30);
524 
525 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
526 	msleep(10);
527 
528 }
529 
530 static void terratec_h5_init(struct em28xx *dev)
531 {
532 	int i;
533 	struct em28xx_reg_seq terratec_h5_init[] = {
534 		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
535 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
536 		{EM2874_R80_GPIO_P0_CTRL,	0xf2,	0xff,	50},
537 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
538 		{	-1,			-1,	-1,	-1},
539 	};
540 	struct em28xx_reg_seq terratec_h5_end[] = {
541 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
542 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
543 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
544 		{	-1,			-1,	-1,	-1},
545 	};
546 	struct {
547 		unsigned char r[4];
548 		int len;
549 	} regs[] = {
550 		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
551 		{{ 0x01, 0x02 }, 2},
552 		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
553 		{{ 0x01, 0x00 }, 2},
554 		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
555 		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
556 		{{ 0x01, 0x00 }, 2},
557 		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
558 		{{ 0x04, 0x00 }, 2},
559 		{{ 0x00, 0x04 }, 2},
560 		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
561 		{{ 0x04, 0x14 }, 2},
562 		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
563 	};
564 
565 	em28xx_gpio_set(dev, terratec_h5_init);
566 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
567 	msleep(10);
568 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
569 	msleep(10);
570 
571 	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
572 
573 	for (i = 0; i < ARRAY_SIZE(regs); i++)
574 		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
575 	em28xx_gpio_set(dev, terratec_h5_end);
576 };
577 
578 static void terratec_htc_stick_init(struct em28xx *dev)
579 {
580 	int i;
581 
582 	/*
583 	 * GPIO configuration:
584 	 * 0xff: unknown (does not affect DVB-T).
585 	 * 0xf6: DRX-K (demodulator).
586 	 * 0xe6: unknown (does not affect DVB-T).
587 	 * 0xb6: unknown (does not affect DVB-T).
588 	 */
589 	struct em28xx_reg_seq terratec_htc_stick_init[] = {
590 		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
591 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
592 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	50},
593 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
594 		{	-1,			-1,	-1,	-1},
595 	};
596 	struct em28xx_reg_seq terratec_htc_stick_end[] = {
597 		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
598 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	50},
599 		{	-1,			-1,	-1,	-1},
600 	};
601 
602 	/*
603 	 * Init the analog decoder (not yet supported), but
604 	 * it's probably still a good idea.
605 	 */
606 	struct {
607 		unsigned char r[4];
608 		int len;
609 	} regs[] = {
610 		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
611 		{{ 0x01, 0x02 }, 2},
612 		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
613 		{{ 0x01, 0x00 }, 2},
614 		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
615 	};
616 
617 	em28xx_gpio_set(dev, terratec_htc_stick_init);
618 
619 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
620 	msleep(10);
621 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
622 	msleep(10);
623 
624 	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
625 
626 	for (i = 0; i < ARRAY_SIZE(regs); i++)
627 		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
628 
629 	em28xx_gpio_set(dev, terratec_htc_stick_end);
630 };
631 
632 static void terratec_htc_usb_xs_init(struct em28xx *dev)
633 {
634 	int i;
635 
636 	struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
637 		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
638 		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	100},
639 		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	50},
640 		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
641 		{	-1,			-1,	-1,	-1},
642 	};
643 	struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
644 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	100},
645 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
646 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
647 		{	-1,			-1,	-1,	-1},
648 	};
649 
650 	/*
651 	 * Init the analog decoder (not yet supported), but
652 	 * it's probably still a good idea.
653 	 */
654 	struct {
655 		unsigned char r[4];
656 		int len;
657 	} regs[] = {
658 		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
659 		{{ 0x01, 0x02 }, 2},
660 		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
661 		{{ 0x01, 0x00 }, 2},
662 		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
663 		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
664 		{{ 0x01, 0x00 }, 2},
665 		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
666 		{{ 0x04, 0x00 }, 2},
667 		{{ 0x00, 0x04 }, 2},
668 		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
669 		{{ 0x04, 0x14 }, 2},
670 		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
671 	};
672 
673 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
674 
675 	em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
676 
677 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
678 	msleep(10);
679 	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
680 	msleep(10);
681 
682 	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
683 
684 	for (i = 0; i < ARRAY_SIZE(regs); i++)
685 		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
686 
687 	em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
688 };
689 
690 static void pctv_520e_init(struct em28xx *dev)
691 {
692 	/*
693 	 * Init AVF4910B analog decoder. Looks like I2C traffic to
694 	 * digital demodulator and tuner are routed via AVF4910B.
695 	 */
696 	int i;
697 	struct {
698 		unsigned char r[4];
699 		int len;
700 	} regs[] = {
701 		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
702 		{{ 0x01, 0x02 }, 2},
703 		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
704 		{{ 0x01, 0x00 }, 2},
705 		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
706 		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
707 		{{ 0x01, 0x00 }, 2},
708 		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
709 	};
710 
711 	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
712 
713 	for (i = 0; i < ARRAY_SIZE(regs); i++)
714 		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
715 };
716 
717 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
718 {
719 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
720 	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
721 	struct em28xx *dev = i2c_bus->dev;
722 #ifdef CONFIG_GPIOLIB
723 	struct em28xx_dvb *dvb = dev->dvb;
724 	int ret;
725 	unsigned long flags;
726 
727 	if (c->lna == 1)
728 		flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
729 	else
730 		flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
731 
732 	ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
733 	if (ret)
734 		em28xx_errdev("gpio request failed %d\n", ret);
735 	else
736 		gpio_free(dvb->lna_gpio);
737 
738 	return ret;
739 #else
740 	dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
741 			KBUILD_MODNAME, c->lna);
742 	return 0;
743 #endif
744 }
745 
746 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
747 {
748 	/* Values extracted from a USB trace of the Terratec Windows driver */
749 	static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
750 	static u8 reset[]          = { RESET,      0x80 };
751 	static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
752 	static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
753 	static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
754 	static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
755 	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
756 	static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
757 	static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
758 	static u8 tuner_go[]       = { TUNER_GO, 0x01};
759 
760 	mt352_write(fe, clock_config,   sizeof(clock_config));
761 	udelay(200);
762 	mt352_write(fe, reset,          sizeof(reset));
763 	mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
764 	mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
765 	mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
766 	mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
767 	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
768 	mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
769 	mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
770 	mt352_write(fe, tuner_go,       sizeof(tuner_go));
771 	return 0;
772 }
773 
774 static struct mt352_config terratec_xs_mt352_cfg = {
775 	.demod_address = (0x1e >> 1),
776 	.no_tuner = 1,
777 	.if2 = 45600,
778 	.demod_init = em28xx_mt352_terratec_xs_init,
779 };
780 
781 static struct tda10023_config em28xx_tda10023_config = {
782 	.demod_address = 0x0c,
783 	.invert = 1,
784 };
785 
786 static struct cxd2820r_config em28xx_cxd2820r_config = {
787 	.i2c_address = (0xd8 >> 1),
788 	.ts_mode = CXD2820R_TS_SERIAL,
789 };
790 
791 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
792 	.output_opt = TDA18271_OUTPUT_LT_OFF,
793 	.gate = TDA18271_GATE_DIGITAL,
794 };
795 
796 static const struct tda10071_config em28xx_tda10071_config = {
797 	.demod_i2c_addr = 0x55, /* (0xaa >> 1) */
798 	.tuner_i2c_addr = 0x14,
799 	.i2c_wr_max = 64,
800 	.ts_mode = TDA10071_TS_SERIAL,
801 	.spec_inv = 0,
802 	.xtal = 40444000, /* 40.444 MHz */
803 	.pll_multiplier = 20,
804 };
805 
806 static const struct a8293_config em28xx_a8293_config = {
807 	.i2c_addr = 0x08, /* (0x10 >> 1) */
808 };
809 
810 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
811 	.demod_address = (0x1e >> 1),
812 	.disable_i2c_gate_ctrl = 1,
813 	.no_tuner = 1,
814 	.parallel_ts = 1,
815 };
816 static struct qt1010_config em28xx_qt1010_config = {
817 	.i2c_address = 0x62
818 };
819 
820 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
821 	.demod_address = 0x10,
822 	.is_serial = true,
823 };
824 
825 static struct tda18271_std_map mb86a20s_tda18271_config = {
826 	.dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
827 		      .if_lvl = 1, .rfagc_top = 0x37, },
828 };
829 
830 static struct tda18271_config c3tech_duo_tda18271_config = {
831 	.std_map = &mb86a20s_tda18271_config,
832 	.gate    = TDA18271_GATE_DIGITAL,
833 	.small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
834 };
835 
836 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
837 	.i2c_addr = 0x68,
838 	.clock = 27000000,
839 	.i2c_wr_max = 33,
840 	.clock_out = 0,
841 	.ts_mode = M88DS3103_TS_PARALLEL_16,
842 	.agc = 0x99,
843 };
844 
845 
846 static struct tda18271_std_map drx_j_std_map = {
847 	.atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
848 		      .rfagc_top = 0x37, },
849 	.qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
850 		      .rfagc_top = 0x37, },
851 };
852 
853 static struct tda18271_config pinnacle_80e_dvb_config = {
854 	.std_map = &drx_j_std_map,
855 	.gate    = TDA18271_GATE_DIGITAL,
856 	.role    = TDA18271_MASTER,
857 };
858 
859 /* ------------------------------------------------------------------ */
860 
861 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
862 {
863 	struct dvb_frontend *fe;
864 	struct xc2028_config cfg;
865 	struct xc2028_ctrl ctl;
866 
867 	memset(&cfg, 0, sizeof(cfg));
868 	cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
869 	cfg.i2c_addr  = addr;
870 
871 	memset(&ctl, 0, sizeof(ctl));
872 	em28xx_setup_xc3028(dev, &ctl);
873 	cfg.ctrl  = &ctl;
874 
875 	if (!dev->dvb->fe[0]) {
876 		em28xx_errdev("/2: dvb frontend not attached. "
877 				"Can't attach xc3028\n");
878 		return -EINVAL;
879 	}
880 
881 	fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
882 	if (!fe) {
883 		em28xx_errdev("/2: xc3028 attach failed\n");
884 		dvb_frontend_detach(dev->dvb->fe[0]);
885 		dev->dvb->fe[0] = NULL;
886 		return -EINVAL;
887 	}
888 
889 	em28xx_info("%s/2: xc3028 attached\n", dev->name);
890 
891 	return 0;
892 }
893 
894 /* ------------------------------------------------------------------ */
895 
896 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
897 			       struct em28xx *dev, struct device *device)
898 {
899 	int result;
900 
901 	mutex_init(&dvb->lock);
902 
903 	/* register adapter */
904 	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
905 				      adapter_nr);
906 	if (result < 0) {
907 		printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
908 		       dev->name, result);
909 		goto fail_adapter;
910 	}
911 
912 	/* Ensure all frontends negotiate bus access */
913 	dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
914 	if (dvb->fe[1])
915 		dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
916 
917 	dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
918 
919 	/* register frontend */
920 	result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
921 	if (result < 0) {
922 		printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
923 		       dev->name, result);
924 		goto fail_frontend0;
925 	}
926 
927 	/* register 2nd frontend */
928 	if (dvb->fe[1]) {
929 		result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
930 		if (result < 0) {
931 			printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
932 				dev->name, result);
933 			goto fail_frontend1;
934 		}
935 	}
936 
937 	/* register demux stuff */
938 	dvb->demux.dmx.capabilities =
939 		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
940 		DMX_MEMORY_BASED_FILTERING;
941 	dvb->demux.priv       = dvb;
942 	dvb->demux.filternum  = 256;
943 	dvb->demux.feednum    = 256;
944 	dvb->demux.start_feed = em28xx_start_feed;
945 	dvb->demux.stop_feed  = em28xx_stop_feed;
946 
947 	result = dvb_dmx_init(&dvb->demux);
948 	if (result < 0) {
949 		printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
950 		       dev->name, result);
951 		goto fail_dmx;
952 	}
953 
954 	dvb->dmxdev.filternum    = 256;
955 	dvb->dmxdev.demux        = &dvb->demux.dmx;
956 	dvb->dmxdev.capabilities = 0;
957 	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
958 	if (result < 0) {
959 		printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
960 		       dev->name, result);
961 		goto fail_dmxdev;
962 	}
963 
964 	dvb->fe_hw.source = DMX_FRONTEND_0;
965 	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
966 	if (result < 0) {
967 		printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
968 		       dev->name, result);
969 		goto fail_fe_hw;
970 	}
971 
972 	dvb->fe_mem.source = DMX_MEMORY_FE;
973 	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
974 	if (result < 0) {
975 		printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
976 		       dev->name, result);
977 		goto fail_fe_mem;
978 	}
979 
980 	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
981 	if (result < 0) {
982 		printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
983 		       dev->name, result);
984 		goto fail_fe_conn;
985 	}
986 
987 	/* register network adapter */
988 	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
989 	return 0;
990 
991 fail_fe_conn:
992 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
993 fail_fe_mem:
994 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
995 fail_fe_hw:
996 	dvb_dmxdev_release(&dvb->dmxdev);
997 fail_dmxdev:
998 	dvb_dmx_release(&dvb->demux);
999 fail_dmx:
1000 	if (dvb->fe[1])
1001 		dvb_unregister_frontend(dvb->fe[1]);
1002 	dvb_unregister_frontend(dvb->fe[0]);
1003 fail_frontend1:
1004 	if (dvb->fe[1])
1005 		dvb_frontend_detach(dvb->fe[1]);
1006 fail_frontend0:
1007 	dvb_frontend_detach(dvb->fe[0]);
1008 	dvb_unregister_adapter(&dvb->adapter);
1009 fail_adapter:
1010 	return result;
1011 }
1012 
1013 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1014 {
1015 	dvb_net_release(&dvb->net);
1016 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1017 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1018 	dvb_dmxdev_release(&dvb->dmxdev);
1019 	dvb_dmx_release(&dvb->demux);
1020 	if (dvb->fe[1])
1021 		dvb_unregister_frontend(dvb->fe[1]);
1022 	dvb_unregister_frontend(dvb->fe[0]);
1023 	if (dvb->fe[1] && !dvb->dont_attach_fe1)
1024 		dvb_frontend_detach(dvb->fe[1]);
1025 	dvb_frontend_detach(dvb->fe[0]);
1026 	dvb_unregister_adapter(&dvb->adapter);
1027 }
1028 
1029 static int em28xx_dvb_init(struct em28xx *dev)
1030 {
1031 	int result = 0, mfe_shared = 0;
1032 	struct em28xx_dvb *dvb;
1033 
1034 	if (dev->is_audio_only) {
1035 		/* Shouldn't initialize IR for this interface */
1036 		return 0;
1037 	}
1038 
1039 	if (!dev->board.has_dvb) {
1040 		/* This device does not support the extension */
1041 		return 0;
1042 	}
1043 
1044 	em28xx_info("Binding DVB extension\n");
1045 
1046 	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1047 	if (dvb == NULL) {
1048 		em28xx_info("em28xx_dvb: memory allocation failed\n");
1049 		return -ENOMEM;
1050 	}
1051 	dev->dvb = dvb;
1052 	dvb->fe[0] = dvb->fe[1] = NULL;
1053 
1054 	/* pre-allocate DVB usb transfer buffers */
1055 	if (dev->dvb_xfer_bulk) {
1056 		result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1057 					   dev->dvb_xfer_bulk,
1058 					   EM28XX_DVB_NUM_BUFS,
1059 					   512,
1060 					   EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1061 	} else {
1062 		result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1063 					   dev->dvb_xfer_bulk,
1064 					   EM28XX_DVB_NUM_BUFS,
1065 					   dev->dvb_max_pkt_size_isoc,
1066 					   EM28XX_DVB_NUM_ISOC_PACKETS);
1067 	}
1068 	if (result) {
1069 		em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1070 		kfree(dvb);
1071 		dev->dvb = NULL;
1072 		return result;
1073 	}
1074 
1075 	mutex_lock(&dev->lock);
1076 	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1077 	/* init frontend */
1078 	switch (dev->model) {
1079 	case EM2874_BOARD_LEADERSHIP_ISDBT:
1080 		dvb->fe[0] = dvb_attach(s921_attach,
1081 				&sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1082 
1083 		if (!dvb->fe[0]) {
1084 			result = -EINVAL;
1085 			goto out_free;
1086 		}
1087 
1088 		break;
1089 	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1090 	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1091 	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1092 	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1093 		dvb->fe[0] = dvb_attach(lgdt330x_attach,
1094 					   &em2880_lgdt3303_dev,
1095 					   &dev->i2c_adap[dev->def_i2c_bus]);
1096 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1097 			result = -EINVAL;
1098 			goto out_free;
1099 		}
1100 		break;
1101 	case EM2880_BOARD_KWORLD_DVB_310U:
1102 		dvb->fe[0] = dvb_attach(zl10353_attach,
1103 					   &em28xx_zl10353_with_xc3028,
1104 					   &dev->i2c_adap[dev->def_i2c_bus]);
1105 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1106 			result = -EINVAL;
1107 			goto out_free;
1108 		}
1109 		break;
1110 	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1111 	case EM2882_BOARD_TERRATEC_HYBRID_XS:
1112 	case EM2880_BOARD_EMPIRE_DUAL_TV:
1113 		dvb->fe[0] = dvb_attach(zl10353_attach,
1114 					   &em28xx_zl10353_xc3028_no_i2c_gate,
1115 					   &dev->i2c_adap[dev->def_i2c_bus]);
1116 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1117 			result = -EINVAL;
1118 			goto out_free;
1119 		}
1120 		break;
1121 	case EM2880_BOARD_TERRATEC_HYBRID_XS:
1122 	case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1123 	case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1124 	case EM2882_BOARD_DIKOM_DK300:
1125 	case EM2882_BOARD_KWORLD_VS_DVBT:
1126 		dvb->fe[0] = dvb_attach(zl10353_attach,
1127 					   &em28xx_zl10353_xc3028_no_i2c_gate,
1128 					   &dev->i2c_adap[dev->def_i2c_bus]);
1129 		if (dvb->fe[0] == NULL) {
1130 			/* This board could have either a zl10353 or a mt352.
1131 			   If the chip id isn't for zl10353, try mt352 */
1132 			dvb->fe[0] = dvb_attach(mt352_attach,
1133 						   &terratec_xs_mt352_cfg,
1134 						   &dev->i2c_adap[dev->def_i2c_bus]);
1135 		}
1136 
1137 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1138 			result = -EINVAL;
1139 			goto out_free;
1140 		}
1141 		break;
1142 	case EM2870_BOARD_KWORLD_355U:
1143 		dvb->fe[0] = dvb_attach(zl10353_attach,
1144 					   &em28xx_zl10353_no_i2c_gate_dev,
1145 					   &dev->i2c_adap[dev->def_i2c_bus]);
1146 		if (dvb->fe[0] != NULL)
1147 			dvb_attach(qt1010_attach, dvb->fe[0],
1148 				   &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1149 		break;
1150 	case EM2883_BOARD_KWORLD_HYBRID_330U:
1151 	case EM2882_BOARD_EVGA_INDTUBE:
1152 		dvb->fe[0] = dvb_attach(s5h1409_attach,
1153 					   &em28xx_s5h1409_with_xc3028,
1154 					   &dev->i2c_adap[dev->def_i2c_bus]);
1155 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1156 			result = -EINVAL;
1157 			goto out_free;
1158 		}
1159 		break;
1160 	case EM2882_BOARD_KWORLD_ATSC_315U:
1161 		dvb->fe[0] = dvb_attach(lgdt330x_attach,
1162 					   &em2880_lgdt3303_dev,
1163 					   &dev->i2c_adap[dev->def_i2c_bus]);
1164 		if (dvb->fe[0] != NULL) {
1165 			if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1166 				&dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1167 				result = -EINVAL;
1168 				goto out_free;
1169 			}
1170 		}
1171 		break;
1172 	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1173 	case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1174 		dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1175 					   &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1176 		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1177 			result = -EINVAL;
1178 			goto out_free;
1179 		}
1180 		break;
1181 	case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1182 		/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1183 		dvb->fe[0] = dvb_attach(tda10023_attach,
1184 			&em28xx_tda10023_config,
1185 			&dev->i2c_adap[dev->def_i2c_bus], 0x48);
1186 		if (dvb->fe[0]) {
1187 			if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1188 				&dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1189 				result = -EINVAL;
1190 				goto out_free;
1191 			}
1192 		}
1193 		break;
1194 	case EM2870_BOARD_KWORLD_A340:
1195 		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1196 					   &em2870_lgdt3304_dev,
1197 					   &dev->i2c_adap[dev->def_i2c_bus]);
1198 		if (dvb->fe[0] != NULL)
1199 			dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1200 				   &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1201 		break;
1202 	case EM28174_BOARD_PCTV_290E:
1203 		/* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1204 		dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1205 				CXD2820R_GPIO_L;
1206 		dvb->fe[0] = dvb_attach(cxd2820r_attach,
1207 					&em28xx_cxd2820r_config,
1208 					&dev->i2c_adap[dev->def_i2c_bus],
1209 					&dvb->lna_gpio);
1210 		if (dvb->fe[0]) {
1211 			/* FE 0 attach tuner */
1212 			if (!dvb_attach(tda18271_attach,
1213 					dvb->fe[0],
1214 					0x60,
1215 					&dev->i2c_adap[dev->def_i2c_bus],
1216 					&em28xx_cxd2820r_tda18271_config)) {
1217 
1218 				dvb_frontend_detach(dvb->fe[0]);
1219 				result = -EINVAL;
1220 				goto out_free;
1221 			}
1222 
1223 #ifdef CONFIG_GPIOLIB
1224 			/* enable LNA for DVB-T, DVB-T2 and DVB-C */
1225 			result = gpio_request_one(dvb->lna_gpio,
1226 					GPIOF_OUT_INIT_LOW, NULL);
1227 			if (result)
1228 				em28xx_errdev("gpio request failed %d\n",
1229 						result);
1230 			else
1231 				gpio_free(dvb->lna_gpio);
1232 
1233 			result = 0; /* continue even set LNA fails */
1234 #endif
1235 			dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1236 		}
1237 
1238 		break;
1239 	case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1240 	{
1241 		struct xc5000_config cfg;
1242 		hauppauge_hvr930c_init(dev);
1243 
1244 		dvb->fe[0] = dvb_attach(drxk_attach,
1245 					&hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1246 		if (!dvb->fe[0]) {
1247 			result = -EINVAL;
1248 			goto out_free;
1249 		}
1250 		/* FIXME: do we need a pll semaphore? */
1251 		dvb->fe[0]->sec_priv = dvb;
1252 		sema_init(&dvb->pll_mutex, 1);
1253 		dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1254 		dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1255 
1256 		/* Attach xc5000 */
1257 		memset(&cfg, 0, sizeof(cfg));
1258 		cfg.i2c_address  = 0x61;
1259 		cfg.if_khz = 4000;
1260 
1261 		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1262 			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1263 		if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1264 				&cfg)) {
1265 			result = -EINVAL;
1266 			goto out_free;
1267 		}
1268 		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1269 			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1270 
1271 		break;
1272 	}
1273 	case EM2884_BOARD_TERRATEC_H5:
1274 		terratec_h5_init(dev);
1275 
1276 		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1277 		if (!dvb->fe[0]) {
1278 			result = -EINVAL;
1279 			goto out_free;
1280 		}
1281 		/* FIXME: do we need a pll semaphore? */
1282 		dvb->fe[0]->sec_priv = dvb;
1283 		sema_init(&dvb->pll_mutex, 1);
1284 		dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1285 		dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1286 
1287 		/* Attach tda18271 to DVB-C frontend */
1288 		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1289 			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1290 		if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1291 			result = -EINVAL;
1292 			goto out_free;
1293 		}
1294 		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1295 			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1296 
1297 		break;
1298 	case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1299 		dvb->fe[0] = dvb_attach(mb86a20s_attach,
1300 					   &c3tech_duo_mb86a20s_config,
1301 					   &dev->i2c_adap[dev->def_i2c_bus]);
1302 		if (dvb->fe[0] != NULL)
1303 			dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1304 				   &dev->i2c_adap[dev->def_i2c_bus],
1305 				   &c3tech_duo_tda18271_config);
1306 		break;
1307 	case EM28174_BOARD_PCTV_460E:
1308 		/* attach demod */
1309 		dvb->fe[0] = dvb_attach(tda10071_attach,
1310 			&em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1311 
1312 		/* attach SEC */
1313 		if (dvb->fe[0])
1314 			dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1315 				&em28xx_a8293_config);
1316 		break;
1317 	case EM2874_BOARD_DELOCK_61959:
1318 	case EM2874_BOARD_MAXMEDIA_UB425_TC:
1319 		/* attach demodulator */
1320 		dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1321 				&dev->i2c_adap[dev->def_i2c_bus]);
1322 
1323 		if (dvb->fe[0]) {
1324 			/* disable I2C-gate */
1325 			dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1326 
1327 			/* attach tuner */
1328 			if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1329 					&dev->i2c_adap[dev->def_i2c_bus],
1330 					&em28xx_cxd2820r_tda18271_config)) {
1331 				dvb_frontend_detach(dvb->fe[0]);
1332 				result = -EINVAL;
1333 				goto out_free;
1334 			}
1335 		}
1336 		break;
1337 	case EM2884_BOARD_PCTV_510E:
1338 	case EM2884_BOARD_PCTV_520E:
1339 		pctv_520e_init(dev);
1340 
1341 		/* attach demodulator */
1342 		dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1343 				&dev->i2c_adap[dev->def_i2c_bus]);
1344 
1345 		if (dvb->fe[0]) {
1346 			/* attach tuner */
1347 			if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1348 					&dev->i2c_adap[dev->def_i2c_bus],
1349 					&em28xx_cxd2820r_tda18271_config)) {
1350 				dvb_frontend_detach(dvb->fe[0]);
1351 				result = -EINVAL;
1352 				goto out_free;
1353 			}
1354 		}
1355 		break;
1356 	case EM2884_BOARD_CINERGY_HTC_STICK:
1357 		terratec_htc_stick_init(dev);
1358 
1359 		/* attach demodulator */
1360 		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1361 					&dev->i2c_adap[dev->def_i2c_bus]);
1362 		if (!dvb->fe[0]) {
1363 			result = -EINVAL;
1364 			goto out_free;
1365 		}
1366 
1367 		/* Attach the demodulator. */
1368 		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1369 				&dev->i2c_adap[dev->def_i2c_bus],
1370 				&em28xx_cxd2820r_tda18271_config)) {
1371 			result = -EINVAL;
1372 			goto out_free;
1373 		}
1374 		break;
1375 	case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1376 		terratec_htc_usb_xs_init(dev);
1377 
1378 		/* attach demodulator */
1379 		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1380 					&dev->i2c_adap[dev->def_i2c_bus]);
1381 		if (!dvb->fe[0]) {
1382 			result = -EINVAL;
1383 			goto out_free;
1384 		}
1385 
1386 		/* Attach the demodulator. */
1387 		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1388 				&dev->i2c_adap[dev->def_i2c_bus],
1389 				&em28xx_cxd2820r_tda18271_config)) {
1390 			result = -EINVAL;
1391 			goto out_free;
1392 		}
1393 		break;
1394 	case EM2874_BOARD_KWORLD_UB435Q_V2:
1395 		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1396 					&em2874_lgdt3305_dev,
1397 					&dev->i2c_adap[dev->def_i2c_bus]);
1398 		if (!dvb->fe[0]) {
1399 			result = -EINVAL;
1400 			goto out_free;
1401 		}
1402 
1403 		/* Attach the demodulator. */
1404 		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1405 				&dev->i2c_adap[dev->def_i2c_bus],
1406 				&kworld_ub435q_v2_config)) {
1407 			result = -EINVAL;
1408 			goto out_free;
1409 		}
1410 		break;
1411 	case EM2874_BOARD_KWORLD_UB435Q_V3:
1412 		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1413 					&em2874_lgdt3305_nogate_dev,
1414 					&dev->i2c_adap[dev->def_i2c_bus]);
1415 		if (!dvb->fe[0]) {
1416 			result = -EINVAL;
1417 			goto out_free;
1418 		}
1419 
1420 		/* Attach the demodulator. */
1421 		if (!dvb_attach(tda18212_attach, dvb->fe[0],
1422 				&dev->i2c_adap[dev->def_i2c_bus],
1423 				&kworld_ub435q_v3_config)) {
1424 			result = -EINVAL;
1425 			goto out_free;
1426 		}
1427 		break;
1428 	case EM2874_BOARD_PCTV_HD_MINI_80E:
1429 		dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1430 		if (dvb->fe[0] != NULL) {
1431 			dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1432 						&dev->i2c_adap[dev->def_i2c_bus],
1433 						&pinnacle_80e_dvb_config);
1434 			if (!dvb->fe[0]) {
1435 				result = -EINVAL;
1436 				goto out_free;
1437 			}
1438 		}
1439 		break;
1440 	case EM28178_BOARD_PCTV_461E:
1441 		{
1442 			/* demod I2C adapter */
1443 			struct i2c_adapter *i2c_adapter;
1444 			struct i2c_client *client;
1445 			struct i2c_board_info info;
1446 			struct m88ts2022_config m88ts2022_config = {
1447 				.clock = 27000000,
1448 			};
1449 			memset(&info, 0, sizeof(struct i2c_board_info));
1450 
1451 			/* attach demod */
1452 			dvb->fe[0] = dvb_attach(m88ds3103_attach,
1453 					&pctv_461e_m88ds3103_config,
1454 					&dev->i2c_adap[dev->def_i2c_bus],
1455 					&i2c_adapter);
1456 			if (dvb->fe[0] == NULL) {
1457 				result = -ENODEV;
1458 				goto out_free;
1459 			}
1460 
1461 			/* attach tuner */
1462 			m88ts2022_config.fe = dvb->fe[0];
1463 			strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1464 			info.addr = 0x60;
1465 			info.platform_data = &m88ts2022_config;
1466 			request_module("m88ts2022");
1467 			client = i2c_new_device(i2c_adapter, &info);
1468 			if (client == NULL || client->dev.driver == NULL) {
1469 				dvb_frontend_detach(dvb->fe[0]);
1470 				result = -ENODEV;
1471 				goto out_free;
1472 			}
1473 
1474 			if (!try_module_get(client->dev.driver->owner)) {
1475 				i2c_unregister_device(client);
1476 				dvb_frontend_detach(dvb->fe[0]);
1477 				result = -ENODEV;
1478 				goto out_free;
1479 			}
1480 
1481 			/* delegate signal strength measurement to tuner */
1482 			dvb->fe[0]->ops.read_signal_strength =
1483 					dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1484 
1485 			/* attach SEC */
1486 			if (!dvb_attach(a8293_attach, dvb->fe[0],
1487 					&dev->i2c_adap[dev->def_i2c_bus],
1488 					&em28xx_a8293_config)) {
1489 				module_put(client->dev.driver->owner);
1490 				i2c_unregister_device(client);
1491 				dvb_frontend_detach(dvb->fe[0]);
1492 				result = -ENODEV;
1493 				goto out_free;
1494 			}
1495 
1496 			dvb->i2c_client_tuner = client;
1497 		}
1498 		break;
1499 	default:
1500 		em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1501 				" isn't supported yet\n");
1502 		break;
1503 	}
1504 	if (NULL == dvb->fe[0]) {
1505 		em28xx_errdev("/2: frontend initialization failed\n");
1506 		result = -EINVAL;
1507 		goto out_free;
1508 	}
1509 	/* define general-purpose callback pointer */
1510 	dvb->fe[0]->callback = em28xx_tuner_callback;
1511 	if (dvb->fe[1])
1512 		dvb->fe[1]->callback = em28xx_tuner_callback;
1513 
1514 	/* register everything */
1515 	result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1516 
1517 	if (result < 0)
1518 		goto out_free;
1519 
1520 	/* MFE lock */
1521 	dvb->adapter.mfe_shared = mfe_shared;
1522 
1523 	em28xx_info("DVB extension successfully initialized\n");
1524 
1525 	kref_get(&dev->ref);
1526 
1527 ret:
1528 	em28xx_set_mode(dev, EM28XX_SUSPEND);
1529 	mutex_unlock(&dev->lock);
1530 	return result;
1531 
1532 out_free:
1533 	kfree(dvb);
1534 	dev->dvb = NULL;
1535 	goto ret;
1536 }
1537 
1538 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1539 {
1540 	ops->set_voltage = NULL;
1541 	ops->sleep = NULL;
1542 	ops->tuner_ops.sleep = NULL;
1543 }
1544 
1545 static int em28xx_dvb_fini(struct em28xx *dev)
1546 {
1547 	struct em28xx_dvb *dvb;
1548 	struct i2c_client *client;
1549 
1550 	if (dev->is_audio_only) {
1551 		/* Shouldn't initialize IR for this interface */
1552 		return 0;
1553 	}
1554 
1555 	if (!dev->board.has_dvb) {
1556 		/* This device does not support the extension */
1557 		return 0;
1558 	}
1559 
1560 	if (!dev->dvb)
1561 		return 0;
1562 
1563 	em28xx_info("Closing DVB extension");
1564 
1565 	dvb = dev->dvb;
1566 	client = dvb->i2c_client_tuner;
1567 
1568 	em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1569 
1570 	if (dev->disconnected) {
1571 		/* We cannot tell the device to sleep
1572 		 * once it has been unplugged. */
1573 		if (dvb->fe[0])
1574 			prevent_sleep(&dvb->fe[0]->ops);
1575 		if (dvb->fe[1])
1576 			prevent_sleep(&dvb->fe[1]->ops);
1577 	}
1578 
1579 	/* remove I2C tuner */
1580 	if (client) {
1581 		module_put(client->dev.driver->owner);
1582 		i2c_unregister_device(client);
1583 	}
1584 
1585 	em28xx_unregister_dvb(dvb);
1586 	kfree(dvb);
1587 	dev->dvb = NULL;
1588 	kref_put(&dev->ref, em28xx_free_device);
1589 
1590 	return 0;
1591 }
1592 
1593 static int em28xx_dvb_suspend(struct em28xx *dev)
1594 {
1595 	int ret = 0;
1596 
1597 	if (dev->is_audio_only)
1598 		return 0;
1599 
1600 	if (!dev->board.has_dvb)
1601 		return 0;
1602 
1603 	em28xx_info("Suspending DVB extension");
1604 	if (dev->dvb) {
1605 		struct em28xx_dvb *dvb = dev->dvb;
1606 
1607 		if (dvb->fe[0]) {
1608 			ret = dvb_frontend_suspend(dvb->fe[0]);
1609 			em28xx_info("fe0 suspend %d", ret);
1610 		}
1611 		if (dvb->fe[1]) {
1612 			dvb_frontend_suspend(dvb->fe[1]);
1613 			em28xx_info("fe1 suspend %d", ret);
1614 		}
1615 	}
1616 
1617 	return 0;
1618 }
1619 
1620 static int em28xx_dvb_resume(struct em28xx *dev)
1621 {
1622 	int ret = 0;
1623 
1624 	if (dev->is_audio_only)
1625 		return 0;
1626 
1627 	if (!dev->board.has_dvb)
1628 		return 0;
1629 
1630 	em28xx_info("Resuming DVB extension");
1631 	if (dev->dvb) {
1632 		struct em28xx_dvb *dvb = dev->dvb;
1633 		struct i2c_client *client = dvb->i2c_client_tuner;
1634 
1635 		if (dvb->fe[0]) {
1636 			ret = dvb_frontend_resume(dvb->fe[0]);
1637 			em28xx_info("fe0 resume %d", ret);
1638 		}
1639 
1640 		if (dvb->fe[1]) {
1641 			ret = dvb_frontend_resume(dvb->fe[1]);
1642 			em28xx_info("fe1 resume %d", ret);
1643 		}
1644 		/* remove I2C tuner */
1645 		if (client) {
1646 			module_put(client->dev.driver->owner);
1647 			i2c_unregister_device(client);
1648 		}
1649 
1650 		em28xx_unregister_dvb(dvb);
1651 		kfree(dvb);
1652 		dev->dvb = NULL;
1653 	}
1654 
1655 	return 0;
1656 }
1657 
1658 static struct em28xx_ops dvb_ops = {
1659 	.id   = EM28XX_DVB,
1660 	.name = "Em28xx dvb Extension",
1661 	.init = em28xx_dvb_init,
1662 	.fini = em28xx_dvb_fini,
1663 	.suspend = em28xx_dvb_suspend,
1664 	.resume = em28xx_dvb_resume,
1665 };
1666 
1667 static int __init em28xx_dvb_register(void)
1668 {
1669 	return em28xx_register_extension(&dvb_ops);
1670 }
1671 
1672 static void __exit em28xx_dvb_unregister(void)
1673 {
1674 	em28xx_unregister_extension(&dvb_ops);
1675 }
1676 
1677 module_init(em28xx_dvb_register);
1678 module_exit(em28xx_dvb_unregister);
1679