1// SPDX-License-Identifier: GPL-2.0
2//
3// DVB device driver for em28xx
4//
5// (c) 2008-2011 Mauro Carvalho Chehab <mchehab@kernel.org>
6//
7// (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
8//	- Fixes for the driver to properly work with HVR-950
9//	- Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
10//	- Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
11//
12// (c) 2008 Aidan Thornton <makosoft@googlemail.com>
13//
14// (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
15//
16// Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
17//	(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
18//	(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
19
20#include "em28xx.h"
21
22#include <linux/kernel.h>
23#include <linux/slab.h>
24#include <linux/usb.h>
25
26#include <media/v4l2-common.h>
27#include <media/dvb_demux.h>
28#include <media/dvb_net.h>
29#include <media/dmxdev.h>
30#include <media/tuner.h>
31#include "tuner-simple.h"
32#include <linux/gpio.h>
33
34#include "lgdt330x.h"
35#include "lgdt3305.h"
36#include "lgdt3306a.h"
37#include "zl10353.h"
38#include "s5h1409.h"
39#include "mt2060.h"
40#include "mt352.h"
41#include "mt352_priv.h" /* FIXME */
42#include "tda1002x.h"
43#include "drx39xyj/drx39xxj.h"
44#include "tda18271.h"
45#include "s921.h"
46#include "drxd.h"
47#include "cxd2820r.h"
48#include "tda18271c2dd.h"
49#include "drxk.h"
50#include "tda10071.h"
51#include "tda18212.h"
52#include "a8293.h"
53#include "qt1010.h"
54#include "mb86a20s.h"
55#include "m88ds3103.h"
56#include "ts2020.h"
57#include "si2168.h"
58#include "si2157.h"
59#include "tc90522.h"
60#include "qm1d1c0042.h"
61#include "mxl692.h"
62
63MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@kernel.org>");
64MODULE_LICENSE("GPL v2");
65MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
66MODULE_VERSION(EM28XX_VERSION);
67
68static unsigned int debug;
69module_param(debug, int, 0644);
70MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
71
72DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
73
74#define dprintk(level, fmt, arg...) do {				\
75	if (debug >= level)						\
76		dev_printk(KERN_DEBUG, &dev->intf->dev,			\
77			   "dvb: " fmt, ## arg);			\
78} while (0)
79
80struct em28xx_dvb {
81	struct dvb_frontend        *fe[2];
82
83	/* feed count management */
84	struct mutex               lock;
85	int                        nfeeds;
86
87	/* general boilerplate stuff */
88	struct dvb_adapter         adapter;
89	struct dvb_demux           demux;
90	struct dmxdev              dmxdev;
91	struct dmx_frontend        fe_hw;
92	struct dmx_frontend        fe_mem;
93	struct dvb_net             net;
94
95	/* Due to DRX-K - probably need changes */
96	int (*gate_ctrl)(struct dvb_frontend *fe, int gate);
97	struct semaphore      pll_mutex;
98	bool			dont_attach_fe1;
99	int			lna_gpio;
100	struct i2c_client	*i2c_client_demod;
101	struct i2c_client	*i2c_client_tuner;
102	struct i2c_client	*i2c_client_sec;
103};
104
105static inline void print_err_status(struct em28xx *dev,
106				    int packet, int status)
107{
108	char *errmsg = "Unknown";
109
110	switch (status) {
111	case -ENOENT:
112		errmsg = "unlinked synchronously";
113		break;
114	case -ECONNRESET:
115		errmsg = "unlinked asynchronously";
116		break;
117	case -ENOSR:
118		errmsg = "Buffer error (overrun)";
119		break;
120	case -EPIPE:
121		errmsg = "Stalled (device not responding)";
122		break;
123	case -EOVERFLOW:
124		errmsg = "Babble (bad cable?)";
125		break;
126	case -EPROTO:
127		errmsg = "Bit-stuff error (bad cable?)";
128		break;
129	case -EILSEQ:
130		errmsg = "CRC/Timeout (could be anything)";
131		break;
132	case -ETIME:
133		errmsg = "Device does not respond";
134		break;
135	}
136	if (packet < 0) {
137		dprintk(1, "URB status %d [%s].\n", status, errmsg);
138	} else {
139		dprintk(1, "URB packet %d, status %d [%s].\n",
140			packet, status, errmsg);
141	}
142}
143
144static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
145{
146	int xfer_bulk, num_packets, i;
147
148	if (!dev)
149		return 0;
150
151	if (dev->disconnected)
152		return 0;
153
154	if (urb->status < 0)
155		print_err_status(dev, -1, urb->status);
156
157	xfer_bulk = usb_pipebulk(urb->pipe);
158
159	if (xfer_bulk) /* bulk */
160		num_packets = 1;
161	else /* isoc */
162		num_packets = urb->number_of_packets;
163
164	for (i = 0; i < num_packets; i++) {
165		if (xfer_bulk) {
166			if (urb->status < 0) {
167				print_err_status(dev, i, urb->status);
168				if (urb->status != -EPROTO)
169					continue;
170			}
171			if (!urb->actual_length)
172				continue;
173			dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
174					 urb->actual_length);
175		} else {
176			if (urb->iso_frame_desc[i].status < 0) {
177				print_err_status(dev, i,
178						 urb->iso_frame_desc[i].status);
179				if (urb->iso_frame_desc[i].status != -EPROTO)
180					continue;
181			}
182			if (!urb->iso_frame_desc[i].actual_length)
183				continue;
184			dvb_dmx_swfilter(&dev->dvb->demux,
185					 urb->transfer_buffer +
186					 urb->iso_frame_desc[i].offset,
187					 urb->iso_frame_desc[i].actual_length);
188		}
189	}
190
191	return 0;
192}
193
194static int em28xx_start_streaming(struct em28xx_dvb *dvb)
195{
196	int rc;
197	struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
198	struct em28xx *dev = i2c_bus->dev;
199	struct usb_device *udev = interface_to_usbdev(dev->intf);
200	int dvb_max_packet_size, packet_multiplier, dvb_alt;
201
202	if (dev->dvb_xfer_bulk) {
203		if (!dev->dvb_ep_bulk)
204			return -ENODEV;
205		dvb_max_packet_size = 512; /* USB 2.0 spec */
206		packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
207		dvb_alt = 0;
208	} else { /* isoc */
209		if (!dev->dvb_ep_isoc)
210			return -ENODEV;
211		dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
212		if (dvb_max_packet_size < 0)
213			return dvb_max_packet_size;
214		packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
215		dvb_alt = dev->dvb_alt_isoc;
216	}
217
218	if (!dev->board.has_dual_ts)
219		usb_set_interface(udev, dev->ifnum, dvb_alt);
220
221	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
222	if (rc < 0)
223		return rc;
224
225	dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
226		EM28XX_DVB_NUM_BUFS,
227		packet_multiplier,
228		dvb_max_packet_size, dvb_alt);
229
230	return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
231				    dev->dvb_xfer_bulk,
232				    EM28XX_DVB_NUM_BUFS,
233				    dvb_max_packet_size,
234				    packet_multiplier,
235				    em28xx_dvb_urb_data_copy);
236}
237
238static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
239{
240	struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
241	struct em28xx *dev = i2c_bus->dev;
242
243	em28xx_stop_urbs(dev);
244
245	return 0;
246}
247
248static int em28xx_start_feed(struct dvb_demux_feed *feed)
249{
250	struct dvb_demux *demux  = feed->demux;
251	struct em28xx_dvb *dvb = demux->priv;
252	int rc, ret;
253
254	if (!demux->dmx.frontend)
255		return -EINVAL;
256
257	mutex_lock(&dvb->lock);
258	dvb->nfeeds++;
259	rc = dvb->nfeeds;
260
261	if (dvb->nfeeds == 1) {
262		ret = em28xx_start_streaming(dvb);
263		if (ret < 0)
264			rc = ret;
265	}
266
267	mutex_unlock(&dvb->lock);
268	return rc;
269}
270
271static int em28xx_stop_feed(struct dvb_demux_feed *feed)
272{
273	struct dvb_demux *demux  = feed->demux;
274	struct em28xx_dvb *dvb = demux->priv;
275	int err = 0;
276
277	mutex_lock(&dvb->lock);
278	dvb->nfeeds--;
279
280	if (!dvb->nfeeds)
281		err = em28xx_stop_streaming(dvb);
282
283	mutex_unlock(&dvb->lock);
284	return err;
285}
286
287/* ------------------------------------------------------------------ */
288static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
289{
290	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
291	struct em28xx *dev = i2c_bus->dev;
292
293	if (acquire)
294		return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
295	else
296		return em28xx_set_mode(dev, EM28XX_SUSPEND);
297}
298
299/* ------------------------------------------------------------------ */
300
301static struct lgdt330x_config em2880_lgdt3303_dev = {
302	.demod_chip = LGDT3303,
303};
304
305static struct lgdt3305_config em2870_lgdt3304_dev = {
306	.i2c_addr           = 0x0e,
307	.demod_chip         = LGDT3304,
308	.spectral_inversion = 1,
309	.deny_i2c_rptr      = 1,
310	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,
311	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
312	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
313	.vsb_if_khz         = 3250,
314	.qam_if_khz         = 4000,
315};
316
317static struct lgdt3305_config em2874_lgdt3305_dev = {
318	.i2c_addr           = 0x0e,
319	.demod_chip         = LGDT3305,
320	.spectral_inversion = 1,
321	.deny_i2c_rptr      = 0,
322	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
323	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
324	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
325	.vsb_if_khz         = 3250,
326	.qam_if_khz         = 4000,
327};
328
329static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
330	.i2c_addr           = 0x0e,
331	.demod_chip         = LGDT3305,
332	.spectral_inversion = 1,
333	.deny_i2c_rptr      = 1,
334	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
335	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
336	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
337	.vsb_if_khz         = 3600,
338	.qam_if_khz         = 3600,
339};
340
341static struct s921_config sharp_isdbt = {
342	.demod_address = 0x30 >> 1
343};
344
345static struct zl10353_config em28xx_zl10353_with_xc3028 = {
346	.demod_address = (0x1e >> 1),
347	.no_tuner = 1,
348	.parallel_ts = 1,
349	.if2 = 45600,
350};
351
352static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
353	.demod_address = 0x32 >> 1,
354	.output_mode   = S5H1409_PARALLEL_OUTPUT,
355	.gpio          = S5H1409_GPIO_OFF,
356	.inversion     = S5H1409_INVERSION_OFF,
357	.status_mode   = S5H1409_DEMODLOCKING,
358	.mpeg_timing   = S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK
359};
360
361static struct tda18271_std_map kworld_a340_std_map = {
362	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
363		      .if_lvl = 1, .rfagc_top = 0x37, },
364	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
365		      .if_lvl = 1, .rfagc_top = 0x37, },
366};
367
368static struct tda18271_config kworld_a340_config = {
369	.std_map           = &kworld_a340_std_map,
370};
371
372static struct tda18271_config kworld_ub435q_v2_config = {
373	.std_map	= &kworld_a340_std_map,
374	.gate		= TDA18271_GATE_DIGITAL,
375};
376
377static struct tda18212_config kworld_ub435q_v3_config = {
378	.if_atsc_vsb	= 3600,
379	.if_atsc_qam	= 3600,
380};
381
382static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
383	.demod_address = (0x1e >> 1),
384	.no_tuner = 1,
385	.disable_i2c_gate_ctrl = 1,
386	.parallel_ts = 1,
387	.if2 = 45600,
388};
389
390static struct drxd_config em28xx_drxd = {
391	.demod_address = 0x70,
392	.demod_revision = 0xa2,
393	.pll_type = DRXD_PLL_NONE,
394	.clock = 12000,
395	.insert_rs_byte = 1,
396	.IF = 42800000,
397	.disable_i2c_gate_ctrl = 1,
398};
399
400static struct drxk_config terratec_h5_drxk = {
401	.adr = 0x29,
402	.single_master = 1,
403	.no_i2c_bridge = 1,
404	.microcode_name = "dvb-usb-terratec-h5-drxk.fw",
405	.qam_demod_parameter_count = 2,
406};
407
408static struct drxk_config hauppauge_930c_drxk = {
409	.adr = 0x29,
410	.single_master = 1,
411	.no_i2c_bridge = 1,
412	.microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
413	.chunk_size = 56,
414	.qam_demod_parameter_count = 2,
415};
416
417static struct drxk_config terratec_htc_stick_drxk = {
418	.adr = 0x29,
419	.single_master = 1,
420	.no_i2c_bridge = 1,
421	.microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
422	.chunk_size = 54,
423	.qam_demod_parameter_count = 2,
424	/* Required for the antenna_gpio to disable LNA. */
425	.antenna_dvbt = true,
426	/* The windows driver uses the same. This will disable LNA. */
427	.antenna_gpio = 0x6,
428};
429
430static struct drxk_config maxmedia_ub425_tc_drxk = {
431	.adr = 0x29,
432	.single_master = 1,
433	.no_i2c_bridge = 1,
434	.microcode_name = "dvb-demod-drxk-01.fw",
435	.chunk_size = 62,
436	.qam_demod_parameter_count = 2,
437};
438
439static struct drxk_config pctv_520e_drxk = {
440	.adr = 0x29,
441	.single_master = 1,
442	.microcode_name = "dvb-demod-drxk-pctv.fw",
443	.qam_demod_parameter_count = 2,
444	.chunk_size = 58,
445	.antenna_dvbt = true, /* disable LNA */
446	.antenna_gpio = (1 << 2), /* disable LNA */
447};
448
449static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
450{
451	struct em28xx_dvb *dvb = fe->sec_priv;
452	int status;
453
454	if (!dvb)
455		return -EINVAL;
456
457	if (enable) {
458		down(&dvb->pll_mutex);
459		status = dvb->gate_ctrl(fe, 1);
460	} else {
461		status = dvb->gate_ctrl(fe, 0);
462		up(&dvb->pll_mutex);
463	}
464	return status;
465}
466
467static void hauppauge_hvr930c_init(struct em28xx *dev)
468{
469	int i;
470
471	static const struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
472		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0x65},
473		{EM2874_R80_GPIO_P0_CTRL,	0xfb,	0xff,	0x32},
474		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0xb8},
475		{	-1,			-1,	-1,	-1},
476	};
477	static const struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
478		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x01},
479		{EM2874_R80_GPIO_P0_CTRL,	0xaf,	0xff,	0x65},
480		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x76},
481		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x01},
482		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x0b},
483		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x40},
484
485		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x65},
486		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x65},
487		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x0b},
488		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x65},
489
490		{	-1,			-1,	-1,	-1},
491	};
492
493	static const struct {
494		unsigned char r[4];
495		int len;
496	} regs[] = {
497		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
498		{{ 0x01, 0x02 }, 2},
499		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
500		{{ 0x01, 0x00 }, 2},
501		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
502		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
503		{{ 0x01, 0x00 }, 2},
504		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
505		{{ 0x04, 0x00 }, 2},
506		{{ 0x00, 0x04 }, 2},
507		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
508		{{ 0x04, 0x14 }, 2},
509		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
510	};
511
512	em28xx_gpio_set(dev, hauppauge_hvr930c_init);
513	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
514	usleep_range(10000, 11000);
515	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
516	usleep_range(10000, 11000);
517
518	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
519
520	for (i = 0; i < ARRAY_SIZE(regs); i++)
521		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
522				regs[i].r, regs[i].len);
523	em28xx_gpio_set(dev, hauppauge_hvr930c_end);
524
525	msleep(100);
526
527	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
528	msleep(30);
529
530	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
531	usleep_range(10000, 11000);
532}
533
534static void terratec_h5_init(struct em28xx *dev)
535{
536	int i;
537	static const struct em28xx_reg_seq terratec_h5_init[] = {
538		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
539		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
540		{EM2874_R80_GPIO_P0_CTRL,	0xf2,	0xff,	50},
541		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
542		{	-1,			-1,	-1,	-1},
543	};
544	static const struct em28xx_reg_seq terratec_h5_end[] = {
545		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
546		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
547		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
548		{	-1,			-1,	-1,	-1},
549	};
550	static const struct {
551		unsigned char r[4];
552		int len;
553	} regs[] = {
554		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
555		{{ 0x01, 0x02 }, 2},
556		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
557		{{ 0x01, 0x00 }, 2},
558		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
559		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
560		{{ 0x01, 0x00 }, 2},
561		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
562		{{ 0x04, 0x00 }, 2},
563		{{ 0x00, 0x04 }, 2},
564		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
565		{{ 0x04, 0x14 }, 2},
566		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
567	};
568
569	em28xx_gpio_set(dev, terratec_h5_init);
570	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
571	usleep_range(10000, 11000);
572	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
573	usleep_range(10000, 11000);
574
575	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
576
577	for (i = 0; i < ARRAY_SIZE(regs); i++)
578		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
579				regs[i].r, regs[i].len);
580	em28xx_gpio_set(dev, terratec_h5_end);
581};
582
583static void terratec_htc_stick_init(struct em28xx *dev)
584{
585	int i;
586
587	/*
588	 * GPIO configuration:
589	 * 0xff: unknown (does not affect DVB-T).
590	 * 0xf6: DRX-K (demodulator).
591	 * 0xe6: unknown (does not affect DVB-T).
592	 * 0xb6: unknown (does not affect DVB-T).
593	 */
594	static const struct em28xx_reg_seq terratec_htc_stick_init[] = {
595		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
596		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
597		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	50},
598		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
599		{	-1,			-1,	-1,	-1},
600	};
601	static const struct em28xx_reg_seq terratec_htc_stick_end[] = {
602		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
603		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	50},
604		{	-1,			-1,	-1,	-1},
605	};
606
607	/*
608	 * Init the analog decoder (not yet supported), but
609	 * it's probably still a good idea.
610	 */
611	static const struct {
612		unsigned char r[4];
613		int len;
614	} regs[] = {
615		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
616		{{ 0x01, 0x02 }, 2},
617		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
618		{{ 0x01, 0x00 }, 2},
619		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
620	};
621
622	em28xx_gpio_set(dev, terratec_htc_stick_init);
623
624	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
625	usleep_range(10000, 11000);
626	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
627	usleep_range(10000, 11000);
628
629	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
630
631	for (i = 0; i < ARRAY_SIZE(regs); i++)
632		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
633				regs[i].r, regs[i].len);
634
635	em28xx_gpio_set(dev, terratec_htc_stick_end);
636};
637
638static void terratec_htc_usb_xs_init(struct em28xx *dev)
639{
640	int i;
641
642	static const struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
643		{EM2820_R08_GPIO_CTRL,		0xff,	0xff,	10},
644		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	100},
645		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	50},
646		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
647		{	-1,			-1,	-1,	-1},
648	};
649	static const struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
650		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	100},
651		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
652		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
653		{	-1,			-1,	-1,	-1},
654	};
655
656	/*
657	 * Init the analog decoder (not yet supported), but
658	 * it's probably still a good idea.
659	 */
660	static const struct {
661		unsigned char r[4];
662		int len;
663	} regs[] = {
664		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
665		{{ 0x01, 0x02 }, 2},
666		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
667		{{ 0x01, 0x00 }, 2},
668		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
669		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
670		{{ 0x01, 0x00 }, 2},
671		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
672		{{ 0x04, 0x00 }, 2},
673		{{ 0x00, 0x04 }, 2},
674		{{ 0x00, 0x04, 0x00, 0x0a }, 4},
675		{{ 0x04, 0x14 }, 2},
676		{{ 0x04, 0x14, 0x00, 0x00 }, 4},
677	};
678
679	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
680
681	em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
682
683	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
684	usleep_range(10000, 11000);
685	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
686	usleep_range(10000, 11000);
687
688	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
689
690	for (i = 0; i < ARRAY_SIZE(regs); i++)
691		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
692				regs[i].r, regs[i].len);
693
694	em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
695};
696
697static void pctv_520e_init(struct em28xx *dev)
698{
699	/*
700	 * Init AVF4910B analog decoder. Looks like I2C traffic to
701	 * digital demodulator and tuner are routed via AVF4910B.
702	 */
703	int i;
704	static const struct {
705		unsigned char r[4];
706		int len;
707	} regs[] = {
708		{{ 0x06, 0x02, 0x00, 0x31 }, 4},
709		{{ 0x01, 0x02 }, 2},
710		{{ 0x01, 0x02, 0x00, 0xc6 }, 4},
711		{{ 0x01, 0x00 }, 2},
712		{{ 0x01, 0x00, 0xff, 0xaf }, 4},
713		{{ 0x01, 0x00, 0x03, 0xa0 }, 4},
714		{{ 0x01, 0x00 }, 2},
715		{{ 0x01, 0x00, 0x73, 0xaf }, 4},
716	};
717
718	dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
719
720	for (i = 0; i < ARRAY_SIZE(regs); i++)
721		i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
722				regs[i].r, regs[i].len);
723};
724
725static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
726{
727	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
728	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
729	struct em28xx *dev = i2c_bus->dev;
730#ifdef CONFIG_GPIOLIB
731	struct em28xx_dvb *dvb = dev->dvb;
732	int ret;
733	unsigned long flags;
734
735	if (c->lna == 1)
736		flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
737	else
738		flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
739
740	ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
741	if (ret)
742		dev_err(&dev->intf->dev, "gpio request failed %d\n", ret);
743	else
744		gpio_free(dvb->lna_gpio);
745
746	return ret;
747#else
748	dev_warn(&dev->intf->dev, "%s: LNA control is disabled (lna=%u)\n",
749		 KBUILD_MODNAME, c->lna);
750	return 0;
751#endif
752}
753
754static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
755{
756	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
757	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
758	struct em28xx *dev = i2c_bus->dev;
759	u8 lna;
760
761	if (c->lna == 1)
762		lna = 0x01;
763	else
764		lna = 0x00;
765
766	return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);
767}
768
769static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
770{
771	/* Values extracted from a USB trace of the Terratec Windows driver */
772	static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
773	static u8 reset[]          = { RESET,      0x80 };
774	static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
775	static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
776	static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
777	static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
778	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
779	static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
780	static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
781	static u8 tuner_go[]       = { TUNER_GO, 0x01};
782
783	mt352_write(fe, clock_config,   sizeof(clock_config));
784	usleep_range(200, 250);
785	mt352_write(fe, reset,          sizeof(reset));
786	mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
787	mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
788	mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
789	mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
790	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
791	mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
792	mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
793	mt352_write(fe, tuner_go,       sizeof(tuner_go));
794	return 0;
795}
796
797static void px_bcud_init(struct em28xx *dev)
798{
799	int i;
800	static const struct {
801		unsigned char r[4];
802		int len;
803	} regs1[] = {
804		{{ 0x0e, 0x77 }, 2},
805		{{ 0x0f, 0x77 }, 2},
806		{{ 0x03, 0x90 }, 2},
807	}, regs2[] = {
808		{{ 0x07, 0x01 }, 2},
809		{{ 0x08, 0x10 }, 2},
810		{{ 0x13, 0x00 }, 2},
811		{{ 0x17, 0x00 }, 2},
812		{{ 0x03, 0x01 }, 2},
813		{{ 0x10, 0xb1 }, 2},
814		{{ 0x11, 0x40 }, 2},
815		{{ 0x85, 0x7a }, 2},
816		{{ 0x87, 0x04 }, 2},
817	};
818	static const struct em28xx_reg_seq gpio[] = {
819		{EM28XX_R06_I2C_CLK,		0x40,	0xff,	300},
820		{EM2874_R80_GPIO_P0_CTRL,	0xfd,	0xff,	60},
821		{EM28XX_R15_RGAIN,		0x20,	0xff,	0},
822		{EM28XX_R16_GGAIN,		0x20,	0xff,	0},
823		{EM28XX_R17_BGAIN,		0x20,	0xff,	0},
824		{EM28XX_R18_ROFFSET,		0x00,	0xff,	0},
825		{EM28XX_R19_GOFFSET,		0x00,	0xff,	0},
826		{EM28XX_R1A_BOFFSET,		0x00,	0xff,	0},
827		{EM28XX_R23_UOFFSET,		0x00,	0xff,	0},
828		{EM28XX_R24_VOFFSET,		0x00,	0xff,	0},
829		{EM28XX_R26_COMPR,		0x00,	0xff,	0},
830		{0x13,				0x08,	0xff,	0},
831		{EM28XX_R12_VINENABLE,		0x27,	0xff,	0},
832		{EM28XX_R0C_USBSUSP,		0x10,	0xff,	0},
833		{EM28XX_R27_OUTFMT,		0x00,	0xff,	0},
834		{EM28XX_R10_VINMODE,		0x00,	0xff,	0},
835		{EM28XX_R11_VINCTRL,		0x11,	0xff,	0},
836		{EM2874_R50_IR_CONFIG,		0x01,	0xff,	0},
837		{EM2874_R5F_TS_ENABLE,		0x80,	0xff,	0},
838		{EM28XX_R06_I2C_CLK,		0x46,	0xff,	0},
839	};
840	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x46);
841	/* sleeping ISDB-T */
842	dev->dvb->i2c_client_demod->addr = 0x14;
843	for (i = 0; i < ARRAY_SIZE(regs1); i++)
844		i2c_master_send(dev->dvb->i2c_client_demod,
845				regs1[i].r, regs1[i].len);
846	/* sleeping ISDB-S */
847	dev->dvb->i2c_client_demod->addr = 0x15;
848	for (i = 0; i < ARRAY_SIZE(regs2); i++)
849		i2c_master_send(dev->dvb->i2c_client_demod, regs2[i].r,
850				regs2[i].len);
851	for (i = 0; i < ARRAY_SIZE(gpio); i++) {
852		em28xx_write_reg_bits(dev, gpio[i].reg, gpio[i].val,
853				      gpio[i].mask);
854		if (gpio[i].sleep > 0)
855			msleep(gpio[i].sleep);
856	}
857};
858
859static struct mt352_config terratec_xs_mt352_cfg = {
860	.demod_address = (0x1e >> 1),
861	.no_tuner = 1,
862	.if2 = 45600,
863	.demod_init = em28xx_mt352_terratec_xs_init,
864};
865
866static struct tda10023_config em28xx_tda10023_config = {
867	.demod_address = 0x0c,
868	.invert = 1,
869};
870
871static struct cxd2820r_config em28xx_cxd2820r_config = {
872	.i2c_address = (0xd8 >> 1),
873	.ts_mode = CXD2820R_TS_SERIAL,
874};
875
876static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
877	.output_opt = TDA18271_OUTPUT_LT_OFF,
878	.gate = TDA18271_GATE_DIGITAL,
879};
880
881static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
882	.demod_address = (0x1e >> 1),
883	.disable_i2c_gate_ctrl = 1,
884	.no_tuner = 1,
885	.parallel_ts = 1,
886};
887
888static struct mt2060_config em28xx_mt2060_config = {
889	.i2c_address = 0x60,
890};
891
892static struct qt1010_config em28xx_qt1010_config = {
893	.i2c_address = 0x62
894};
895
896static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
897	.demod_address = 0x10,
898	.is_serial = true,
899};
900
901static struct tda18271_std_map mb86a20s_tda18271_config = {
902	.dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
903		      .if_lvl = 1, .rfagc_top = 0x37, },
904};
905
906static struct tda18271_config c3tech_duo_tda18271_config = {
907	.std_map = &mb86a20s_tda18271_config,
908	.gate    = TDA18271_GATE_DIGITAL,
909	.small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
910};
911
912static struct tda18271_std_map drx_j_std_map = {
913	.atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
914		      .rfagc_top = 0x37, },
915	.qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
916		      .rfagc_top = 0x37, },
917};
918
919static struct tda18271_config pinnacle_80e_dvb_config = {
920	.std_map = &drx_j_std_map,
921	.gate    = TDA18271_GATE_DIGITAL,
922	.role    = TDA18271_MASTER,
923};
924
925static struct lgdt3306a_config hauppauge_01595_lgdt3306a_config = {
926	.qam_if_khz         = 4000,
927	.vsb_if_khz         = 3250,
928	.spectral_inversion = 0,
929	.deny_i2c_rptr      = 0,
930	.mpeg_mode          = LGDT3306A_MPEG_SERIAL,
931	.tpclk_edge         = LGDT3306A_TPCLK_RISING_EDGE,
932	.tpvalid_polarity   = LGDT3306A_TP_VALID_HIGH,
933	.xtalMHz            = 25,
934};
935
936/* ------------------------------------------------------------------ */
937
938static noinline_for_stack int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
939{
940	struct dvb_frontend *fe;
941	struct xc2028_config cfg;
942	struct xc2028_ctrl ctl;
943
944	memset(&cfg, 0, sizeof(cfg));
945	cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
946	cfg.i2c_addr  = addr;
947
948	memset(&ctl, 0, sizeof(ctl));
949	em28xx_setup_xc3028(dev, &ctl);
950	cfg.ctrl  = &ctl;
951
952	if (!dev->dvb->fe[0]) {
953		dev_err(&dev->intf->dev,
954			"dvb frontend not attached. Can't attach xc3028\n");
955		return -EINVAL;
956	}
957
958	fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
959	if (!fe) {
960		dev_err(&dev->intf->dev, "xc3028 attach failed\n");
961		dvb_frontend_detach(dev->dvb->fe[0]);
962		dev->dvb->fe[0] = NULL;
963		return -EINVAL;
964	}
965
966	dev_info(&dev->intf->dev, "xc3028 attached\n");
967
968	return 0;
969}
970
971/* ------------------------------------------------------------------ */
972
973static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
974			       struct em28xx *dev, struct device *device)
975{
976	int result;
977	bool create_rf_connector = false;
978
979	mutex_init(&dvb->lock);
980
981	/* register adapter */
982	result = dvb_register_adapter(&dvb->adapter,
983				      dev_name(&dev->intf->dev), module,
984				      device, adapter_nr);
985	if (result < 0) {
986		dev_warn(&dev->intf->dev,
987			 "dvb_register_adapter failed (errno = %d)\n",
988			 result);
989		goto fail_adapter;
990	}
991#ifdef CONFIG_MEDIA_CONTROLLER_DVB
992	dvb->adapter.mdev = dev->media_dev;
993#endif
994
995	/* Ensure all frontends negotiate bus access */
996	dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
997	if (dvb->fe[1])
998		dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
999
1000	dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
1001
1002	/* register frontend */
1003	result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
1004	if (result < 0) {
1005		dev_warn(&dev->intf->dev,
1006			 "dvb_register_frontend failed (errno = %d)\n",
1007			 result);
1008		goto fail_frontend0;
1009	}
1010
1011	/* register 2nd frontend */
1012	if (dvb->fe[1]) {
1013		result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
1014		if (result < 0) {
1015			dev_warn(&dev->intf->dev,
1016				 "2nd dvb_register_frontend failed (errno = %d)\n",
1017				 result);
1018			goto fail_frontend1;
1019		}
1020	}
1021
1022	/* register demux stuff */
1023	dvb->demux.dmx.capabilities =
1024		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
1025		DMX_MEMORY_BASED_FILTERING;
1026	dvb->demux.priv       = dvb;
1027	dvb->demux.filternum  = 256;
1028	dvb->demux.feednum    = 256;
1029	dvb->demux.start_feed = em28xx_start_feed;
1030	dvb->demux.stop_feed  = em28xx_stop_feed;
1031
1032	result = dvb_dmx_init(&dvb->demux);
1033	if (result < 0) {
1034		dev_warn(&dev->intf->dev,
1035			 "dvb_dmx_init failed (errno = %d)\n",
1036			 result);
1037		goto fail_dmx;
1038	}
1039
1040	dvb->dmxdev.filternum    = 256;
1041	dvb->dmxdev.demux        = &dvb->demux.dmx;
1042	dvb->dmxdev.capabilities = 0;
1043	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
1044	if (result < 0) {
1045		dev_warn(&dev->intf->dev,
1046			 "dvb_dmxdev_init failed (errno = %d)\n",
1047			 result);
1048		goto fail_dmxdev;
1049	}
1050
1051	dvb->fe_hw.source = DMX_FRONTEND_0;
1052	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1053	if (result < 0) {
1054		dev_warn(&dev->intf->dev,
1055			 "add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
1056			 result);
1057		goto fail_fe_hw;
1058	}
1059
1060	dvb->fe_mem.source = DMX_MEMORY_FE;
1061	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1062	if (result < 0) {
1063		dev_warn(&dev->intf->dev,
1064			 "add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
1065			 result);
1066		goto fail_fe_mem;
1067	}
1068
1069	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1070	if (result < 0) {
1071		dev_warn(&dev->intf->dev,
1072			 "connect_frontend failed (errno = %d)\n",
1073			 result);
1074		goto fail_fe_conn;
1075	}
1076
1077	/* register network adapter */
1078	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
1079
1080	/* If the analog part won't create RF connectors, DVB will do it */
1081	if (!dev->has_video || dev->tuner_type == TUNER_ABSENT)
1082		create_rf_connector = true;
1083
1084	result = dvb_create_media_graph(&dvb->adapter, create_rf_connector);
1085	if (result < 0)
1086		goto fail_create_graph;
1087
1088	return 0;
1089
1090fail_create_graph:
1091	dvb_net_release(&dvb->net);
1092fail_fe_conn:
1093	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1094fail_fe_mem:
1095	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1096fail_fe_hw:
1097	dvb_dmxdev_release(&dvb->dmxdev);
1098fail_dmxdev:
1099	dvb_dmx_release(&dvb->demux);
1100fail_dmx:
1101	if (dvb->fe[1])
1102		dvb_unregister_frontend(dvb->fe[1]);
1103	dvb_unregister_frontend(dvb->fe[0]);
1104fail_frontend1:
1105	if (dvb->fe[1])
1106		dvb_frontend_detach(dvb->fe[1]);
1107fail_frontend0:
1108	dvb_frontend_detach(dvb->fe[0]);
1109	dvb_unregister_adapter(&dvb->adapter);
1110fail_adapter:
1111	return result;
1112}
1113
1114static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1115{
1116	dvb_net_release(&dvb->net);
1117	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1118	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1119	dvb_dmxdev_release(&dvb->dmxdev);
1120	dvb_dmx_release(&dvb->demux);
1121	if (dvb->fe[1])
1122		dvb_unregister_frontend(dvb->fe[1]);
1123	dvb_unregister_frontend(dvb->fe[0]);
1124	if (dvb->fe[1] && !dvb->dont_attach_fe1)
1125		dvb_frontend_detach(dvb->fe[1]);
1126	dvb_frontend_detach(dvb->fe[0]);
1127	dvb_unregister_adapter(&dvb->adapter);
1128}
1129
1130static int em28174_dvb_init_pctv_460e(struct em28xx *dev)
1131{
1132	struct em28xx_dvb *dvb = dev->dvb;
1133	struct tda10071_platform_data tda10071_pdata = {};
1134	struct a8293_platform_data a8293_pdata = {};
1135
1136	/* attach demod + tuner combo */
1137	tda10071_pdata.clk = 40444000; /* 40.444 MHz */
1138	tda10071_pdata.i2c_wr_max = 64;
1139	tda10071_pdata.ts_mode = TDA10071_TS_SERIAL;
1140	tda10071_pdata.pll_multiplier = 20;
1141	tda10071_pdata.tuner_i2c_addr = 0x14;
1142
1143	dvb->i2c_client_demod = dvb_module_probe("tda10071", "tda10071_cx24118",
1144						 &dev->i2c_adap[dev->def_i2c_bus],
1145						 0x55, &tda10071_pdata);
1146	if (!dvb->i2c_client_demod)
1147		return -ENODEV;
1148
1149	dvb->fe[0] = tda10071_pdata.get_dvb_frontend(dvb->i2c_client_demod);
1150
1151	/* attach SEC */
1152	a8293_pdata.dvb_frontend = dvb->fe[0];
1153
1154	dvb->i2c_client_sec = dvb_module_probe("a8293", NULL,
1155					       &dev->i2c_adap[dev->def_i2c_bus],
1156					       0x08, &a8293_pdata);
1157	if (!dvb->i2c_client_sec) {
1158		dvb_module_release(dvb->i2c_client_demod);
1159		return -ENODEV;
1160	}
1161
1162	return 0;
1163}
1164
1165static int em28178_dvb_init_pctv_461e(struct em28xx *dev)
1166{
1167	struct em28xx_dvb *dvb = dev->dvb;
1168	struct i2c_adapter *i2c_adapter;
1169	struct m88ds3103_platform_data m88ds3103_pdata = {};
1170	struct ts2020_config ts2020_config = {};
1171	struct a8293_platform_data a8293_pdata = {};
1172
1173	/* attach demod */
1174	m88ds3103_pdata.clk = 27000000;
1175	m88ds3103_pdata.i2c_wr_max = 33;
1176	m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
1177	m88ds3103_pdata.ts_clk = 16000;
1178	m88ds3103_pdata.ts_clk_pol = 1;
1179	m88ds3103_pdata.agc = 0x99;
1180
1181	dvb->i2c_client_demod = dvb_module_probe("m88ds3103", NULL,
1182						 &dev->i2c_adap[dev->def_i2c_bus],
1183						 0x68, &m88ds3103_pdata);
1184	if (!dvb->i2c_client_demod)
1185		return -ENODEV;
1186
1187	dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(dvb->i2c_client_demod);
1188	i2c_adapter = m88ds3103_pdata.get_i2c_adapter(dvb->i2c_client_demod);
1189
1190	/* attach tuner */
1191	ts2020_config.fe = dvb->fe[0];
1192
1193	dvb->i2c_client_tuner = dvb_module_probe("ts2020", "ts2022",
1194						 i2c_adapter,
1195						 0x60, &ts2020_config);
1196	if (!dvb->i2c_client_tuner) {
1197		dvb_module_release(dvb->i2c_client_demod);
1198		return -ENODEV;
1199	}
1200
1201	/* delegate signal strength measurement to tuner */
1202	dvb->fe[0]->ops.read_signal_strength =
1203			dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1204
1205	/* attach SEC */
1206	a8293_pdata.dvb_frontend = dvb->fe[0];
1207	/*
1208	 * 461e has a tendency to have vIN undervoltage troubles.
1209	 * Slew mitigates this.
1210	 */
1211	a8293_pdata.volt_slew_nanos_per_mv = 20;
1212
1213	dvb->i2c_client_sec = dvb_module_probe("a8293", NULL,
1214					       &dev->i2c_adap[dev->def_i2c_bus],
1215					       0x08, &a8293_pdata);
1216	if (!dvb->i2c_client_sec) {
1217		dvb_module_release(dvb->i2c_client_tuner);
1218		dvb_module_release(dvb->i2c_client_demod);
1219		return -ENODEV;
1220	}
1221
1222	return 0;
1223}
1224
1225static int em28178_dvb_init_pctv_461e_v2(struct em28xx *dev)
1226{
1227	struct em28xx_dvb *dvb = dev->dvb;
1228	struct i2c_adapter *i2c_adapter;
1229	struct m88ds3103_platform_data m88ds3103_pdata = {};
1230	struct ts2020_config ts2020_config = {};
1231	struct a8293_platform_data a8293_pdata = {};
1232
1233	/* attach demod */
1234	m88ds3103_pdata.clk = 27000000;
1235	m88ds3103_pdata.i2c_wr_max = 33;
1236	m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
1237	m88ds3103_pdata.ts_clk = 16000;
1238	m88ds3103_pdata.ts_clk_pol = 0;
1239	m88ds3103_pdata.agc = 0x99;
1240	m88ds3103_pdata.agc_inv = 0;
1241	m88ds3103_pdata.spec_inv = 0;
1242	dvb->i2c_client_demod = dvb_module_probe("m88ds3103", "m88ds3103b",
1243						 &dev->i2c_adap[dev->def_i2c_bus],
1244						 0x6a, &m88ds3103_pdata);
1245
1246	if (!dvb->i2c_client_demod)
1247		return -ENODEV;
1248
1249	dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(dvb->i2c_client_demod);
1250	i2c_adapter = m88ds3103_pdata.get_i2c_adapter(dvb->i2c_client_demod);
1251
1252	/* attach tuner */
1253	ts2020_config.fe = dvb->fe[0];
1254	dvb->i2c_client_tuner = dvb_module_probe("ts2020", "ts2022",
1255						 i2c_adapter,
1256						 0x60, &ts2020_config);
1257	if (!dvb->i2c_client_tuner) {
1258		dvb_module_release(dvb->i2c_client_demod);
1259		return -ENODEV;
1260	}
1261
1262	/* delegate signal strength measurement to tuner */
1263	dvb->fe[0]->ops.read_signal_strength =
1264			dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1265
1266	/* attach SEC */
1267	a8293_pdata.dvb_frontend = dvb->fe[0];
1268	dvb->i2c_client_sec = dvb_module_probe("a8293", NULL,
1269					       &dev->i2c_adap[dev->def_i2c_bus],
1270					       0x08, &a8293_pdata);
1271	if (!dvb->i2c_client_sec) {
1272		dvb_module_release(dvb->i2c_client_tuner);
1273		dvb_module_release(dvb->i2c_client_demod);
1274		return -ENODEV;
1275	}
1276
1277	return 0;
1278}
1279
1280static int em28178_dvb_init_pctv_292e(struct em28xx *dev)
1281{
1282	struct em28xx_dvb *dvb = dev->dvb;
1283	struct i2c_adapter *adapter;
1284	struct si2168_config si2168_config = {};
1285	struct si2157_config si2157_config = {};
1286
1287	/* attach demod */
1288	si2168_config.i2c_adapter = &adapter;
1289	si2168_config.fe = &dvb->fe[0];
1290	si2168_config.ts_mode = SI2168_TS_PARALLEL;
1291	si2168_config.spectral_inversion = true;
1292
1293	dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1294						 &dev->i2c_adap[dev->def_i2c_bus],
1295						 0x64, &si2168_config);
1296	if (!dvb->i2c_client_demod)
1297		return -ENODEV;
1298
1299	/* attach tuner */
1300	si2157_config.fe = dvb->fe[0];
1301	si2157_config.if_port = 1;
1302#ifdef CONFIG_MEDIA_CONTROLLER_DVB
1303	si2157_config.mdev = dev->media_dev;
1304#endif
1305	dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1306						 adapter,
1307						 0x60, &si2157_config);
1308	if (!dvb->i2c_client_tuner) {
1309		dvb_module_release(dvb->i2c_client_demod);
1310		return -ENODEV;
1311	}
1312	dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
1313
1314	return 0;
1315}
1316
1317static int em28178_dvb_init_terratec_t2_stick_hd(struct em28xx *dev)
1318{
1319	struct em28xx_dvb *dvb = dev->dvb;
1320	struct i2c_adapter *adapter;
1321	struct si2168_config si2168_config = {};
1322	struct si2157_config si2157_config = {};
1323
1324	/* attach demod */
1325	si2168_config.i2c_adapter = &adapter;
1326	si2168_config.fe = &dvb->fe[0];
1327	si2168_config.ts_mode = SI2168_TS_PARALLEL;
1328
1329	dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1330						 &dev->i2c_adap[dev->def_i2c_bus],
1331						 0x64, &si2168_config);
1332	if (!dvb->i2c_client_demod)
1333		return -ENODEV;
1334
1335	/* attach tuner */
1336	memset(&si2157_config, 0, sizeof(si2157_config));
1337	si2157_config.fe = dvb->fe[0];
1338	si2157_config.if_port = 0;
1339#ifdef CONFIG_MEDIA_CONTROLLER_DVB
1340	si2157_config.mdev = dev->media_dev;
1341#endif
1342	dvb->i2c_client_tuner = dvb_module_probe("si2157", "si2146",
1343						 adapter,
1344						 0x60, &si2157_config);
1345	if (!dvb->i2c_client_tuner) {
1346		dvb_module_release(dvb->i2c_client_demod);
1347		return -ENODEV;
1348	}
1349
1350	return 0;
1351}
1352
1353static int em28178_dvb_init_plex_px_bcud(struct em28xx *dev)
1354{
1355	struct em28xx_dvb *dvb = dev->dvb;
1356	struct tc90522_config tc90522_config = {};
1357	struct qm1d1c0042_config qm1d1c0042_config = {};
1358
1359	/* attach demod */
1360	dvb->i2c_client_demod = dvb_module_probe("tc90522", "tc90522sat",
1361						 &dev->i2c_adap[dev->def_i2c_bus],
1362						 0x15, &tc90522_config);
1363	if (!dvb->i2c_client_demod)
1364		return -ENODEV;
1365
1366	/* attach tuner */
1367	qm1d1c0042_config.fe = tc90522_config.fe;
1368	qm1d1c0042_config.lpf = 1;
1369
1370	dvb->i2c_client_tuner = dvb_module_probe("qm1d1c0042", NULL,
1371						 tc90522_config.tuner_i2c,
1372						 0x61, &qm1d1c0042_config);
1373	if (!dvb->i2c_client_tuner) {
1374		dvb_module_release(dvb->i2c_client_demod);
1375		return -ENODEV;
1376	}
1377
1378	dvb->fe[0] = tc90522_config.fe;
1379	px_bcud_init(dev);
1380
1381	return 0;
1382}
1383
1384static int em28174_dvb_init_hauppauge_wintv_dualhd_dvb(struct em28xx *dev)
1385{
1386	struct em28xx_dvb *dvb = dev->dvb;
1387	struct i2c_adapter *adapter;
1388	struct si2168_config si2168_config = {};
1389	struct si2157_config si2157_config = {};
1390	unsigned char addr;
1391
1392	/* attach demod */
1393	si2168_config.i2c_adapter = &adapter;
1394	si2168_config.fe = &dvb->fe[0];
1395	si2168_config.ts_mode = SI2168_TS_SERIAL;
1396	si2168_config.spectral_inversion = true;
1397	addr = (dev->ts == PRIMARY_TS) ? 0x64 : 0x67;
1398
1399	dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1400						 &dev->i2c_adap[dev->def_i2c_bus],
1401						 addr, &si2168_config);
1402	if (!dvb->i2c_client_demod)
1403		return -ENODEV;
1404
1405	/* attach tuner */
1406	memset(&si2157_config, 0, sizeof(si2157_config));
1407	si2157_config.fe = dvb->fe[0];
1408	si2157_config.if_port = 1;
1409#ifdef CONFIG_MEDIA_CONTROLLER_DVB
1410	si2157_config.mdev = dev->media_dev;
1411#endif
1412	addr = (dev->ts == PRIMARY_TS) ? 0x60 : 0x63;
1413
1414	dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1415						 adapter,
1416						 addr, &si2157_config);
1417	if (!dvb->i2c_client_tuner) {
1418		dvb_module_release(dvb->i2c_client_demod);
1419		return -ENODEV;
1420	}
1421
1422	return 0;
1423}
1424
1425static int em28174_dvb_init_hauppauge_wintv_dualhd_01595(struct em28xx *dev)
1426{
1427	struct em28xx_dvb *dvb = dev->dvb;
1428	struct i2c_adapter *adapter;
1429	struct lgdt3306a_config lgdt3306a_config =  {};
1430	struct si2157_config si2157_config = {};
1431	unsigned char addr;
1432
1433	/* attach demod */
1434	lgdt3306a_config = hauppauge_01595_lgdt3306a_config;
1435	lgdt3306a_config.fe = &dvb->fe[0];
1436	lgdt3306a_config.i2c_adapter = &adapter;
1437	addr = (dev->ts == PRIMARY_TS) ? 0x59 : 0x0e;
1438
1439	dvb->i2c_client_demod = dvb_module_probe("lgdt3306a", NULL,
1440						 &dev->i2c_adap[dev->def_i2c_bus],
1441						 addr, &lgdt3306a_config);
1442	if (!dvb->i2c_client_demod)
1443		return -ENODEV;
1444
1445	/* attach tuner */
1446	si2157_config.fe = dvb->fe[0];
1447	si2157_config.if_port = 1;
1448	si2157_config.inversion = 1;
1449#ifdef CONFIG_MEDIA_CONTROLLER_DVB
1450	si2157_config.mdev = dev->media_dev;
1451#endif
1452	addr = (dev->ts == PRIMARY_TS) ? 0x60 : 0x62;
1453
1454	dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1455						 adapter,
1456						 addr, &si2157_config);
1457	if (!dvb->i2c_client_tuner) {
1458		dvb_module_release(dvb->i2c_client_demod);
1459		return -ENODEV;
1460	}
1461
1462	return 0;
1463}
1464
1465static int em2874_dvb_init_hauppauge_usb_quadhd(struct em28xx *dev)
1466{
1467	struct em28xx_dvb *dvb = dev->dvb;
1468	struct mxl692_config mxl692_config = {};
1469	unsigned char addr;
1470
1471	/* attach demod/tuner combo */
1472	mxl692_config.id = (dev->ts == PRIMARY_TS) ? 0 : 1;
1473	mxl692_config.fe = &dvb->fe[0];
1474	addr = (dev->ts == PRIMARY_TS) ? 0x60 : 0x63;
1475
1476	dvb->i2c_client_demod = dvb_module_probe("mxl692", NULL,
1477						 &dev->i2c_adap[dev->def_i2c_bus],
1478						 addr, &mxl692_config);
1479	if (!dvb->i2c_client_demod)
1480		return -ENODEV;
1481
1482	return 0;
1483}
1484
1485static int em28xx_dvb_init(struct em28xx *dev)
1486{
1487	int result = 0, dvb_alt = 0;
1488	struct em28xx_dvb *dvb;
1489	struct usb_device *udev;
1490
1491	if (dev->is_audio_only) {
1492		/* Shouldn't initialize IR for this interface */
1493		return 0;
1494	}
1495
1496	if (!dev->board.has_dvb) {
1497		/* This device does not support the extension */
1498		return 0;
1499	}
1500
1501	dev_info(&dev->intf->dev, "Binding DVB extension\n");
1502
1503	dvb = kzalloc(sizeof(*dvb), GFP_KERNEL);
1504	if (!dvb)
1505		return -ENOMEM;
1506
1507	dev->dvb = dvb;
1508	dvb->fe[0] = NULL;
1509	dvb->fe[1] = NULL;
1510
1511	/* pre-allocate DVB usb transfer buffers */
1512	if (dev->dvb_xfer_bulk) {
1513		result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1514					   dev->dvb_xfer_bulk,
1515					   EM28XX_DVB_NUM_BUFS,
1516					   512,
1517					   EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1518	} else {
1519		result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1520					   dev->dvb_xfer_bulk,
1521					   EM28XX_DVB_NUM_BUFS,
1522					   dev->dvb_max_pkt_size_isoc,
1523					   EM28XX_DVB_NUM_ISOC_PACKETS);
1524	}
1525	if (result) {
1526		dev_err(&dev->intf->dev,
1527			"failed to pre-allocate USB transfer buffers for DVB.\n");
1528		kfree(dvb);
1529		dev->dvb = NULL;
1530		return result;
1531	}
1532
1533	mutex_lock(&dev->lock);
1534	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1535	/* init frontend */
1536	switch (dev->model) {
1537	case EM2874_BOARD_LEADERSHIP_ISDBT:
1538		dvb->fe[0] = dvb_attach(s921_attach,
1539					&sharp_isdbt,
1540					&dev->i2c_adap[dev->def_i2c_bus]);
1541
1542		if (!dvb->fe[0]) {
1543			result = -EINVAL;
1544			goto out_free;
1545		}
1546
1547		break;
1548	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1549	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1550	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1551	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1552		dvb->fe[0] = dvb_attach(lgdt330x_attach,
1553					&em2880_lgdt3303_dev,
1554					0x0e,
1555					&dev->i2c_adap[dev->def_i2c_bus]);
1556		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1557			result = -EINVAL;
1558			goto out_free;
1559		}
1560		break;
1561	case EM2880_BOARD_KWORLD_DVB_310U:
1562		dvb->fe[0] = dvb_attach(zl10353_attach,
1563					&em28xx_zl10353_with_xc3028,
1564					&dev->i2c_adap[dev->def_i2c_bus]);
1565		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1566			result = -EINVAL;
1567			goto out_free;
1568		}
1569		break;
1570	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1571	case EM2882_BOARD_TERRATEC_HYBRID_XS:
1572	case EM2880_BOARD_EMPIRE_DUAL_TV:
1573	case EM2882_BOARD_ZOLID_HYBRID_TV_STICK:
1574		dvb->fe[0] = dvb_attach(zl10353_attach,
1575					&em28xx_zl10353_xc3028_no_i2c_gate,
1576					&dev->i2c_adap[dev->def_i2c_bus]);
1577		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1578			result = -EINVAL;
1579			goto out_free;
1580		}
1581		break;
1582	case EM2880_BOARD_TERRATEC_HYBRID_XS:
1583	case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1584	case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1585	case EM2882_BOARD_DIKOM_DK300:
1586	case EM2882_BOARD_KWORLD_VS_DVBT:
1587		/*
1588		 * Those boards could have either a zl10353 or a mt352.
1589		 * If the chip id isn't for zl10353, try mt352.
1590		 */
1591		dvb->fe[0] = dvb_attach(zl10353_attach,
1592					&em28xx_zl10353_xc3028_no_i2c_gate,
1593					&dev->i2c_adap[dev->def_i2c_bus]);
1594		if (!dvb->fe[0])
1595			dvb->fe[0] = dvb_attach(mt352_attach,
1596						&terratec_xs_mt352_cfg,
1597						&dev->i2c_adap[dev->def_i2c_bus]);
1598
1599		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1600			result = -EINVAL;
1601			goto out_free;
1602		}
1603		break;
1604	case EM2870_BOARD_TERRATEC_XS_MT2060:
1605		dvb->fe[0] = dvb_attach(zl10353_attach,
1606					&em28xx_zl10353_no_i2c_gate_dev,
1607					&dev->i2c_adap[dev->def_i2c_bus]);
1608		if (dvb->fe[0]) {
1609			dvb_attach(mt2060_attach, dvb->fe[0],
1610				   &dev->i2c_adap[dev->def_i2c_bus],
1611				   &em28xx_mt2060_config, 1220);
1612		}
1613		break;
1614	case EM2870_BOARD_KWORLD_355U:
1615		dvb->fe[0] = dvb_attach(zl10353_attach,
1616					&em28xx_zl10353_no_i2c_gate_dev,
1617					&dev->i2c_adap[dev->def_i2c_bus]);
1618		if (dvb->fe[0])
1619			dvb_attach(qt1010_attach, dvb->fe[0],
1620				   &dev->i2c_adap[dev->def_i2c_bus],
1621				   &em28xx_qt1010_config);
1622		break;
1623	case EM2883_BOARD_KWORLD_HYBRID_330U:
1624	case EM2882_BOARD_EVGA_INDTUBE:
1625		dvb->fe[0] = dvb_attach(s5h1409_attach,
1626					&em28xx_s5h1409_with_xc3028,
1627					&dev->i2c_adap[dev->def_i2c_bus]);
1628		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1629			result = -EINVAL;
1630			goto out_free;
1631		}
1632		break;
1633	case EM2882_BOARD_KWORLD_ATSC_315U:
1634		dvb->fe[0] = dvb_attach(lgdt330x_attach,
1635					&em2880_lgdt3303_dev,
1636					0x0e,
1637					&dev->i2c_adap[dev->def_i2c_bus]);
1638		if (dvb->fe[0]) {
1639			if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1640					&dev->i2c_adap[dev->def_i2c_bus],
1641					0x61, TUNER_THOMSON_DTT761X)) {
1642				result = -EINVAL;
1643				goto out_free;
1644			}
1645		}
1646		break;
1647	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1648	case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1649		dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1650					&dev->i2c_adap[dev->def_i2c_bus],
1651					&dev->intf->dev);
1652		if (em28xx_attach_xc3028(0x61, dev) < 0) {
1653			result = -EINVAL;
1654			goto out_free;
1655		}
1656		break;
1657	case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1658		/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1659		dvb->fe[0] = dvb_attach(tda10023_attach,
1660					&em28xx_tda10023_config,
1661					&dev->i2c_adap[dev->def_i2c_bus],
1662					0x48);
1663		if (dvb->fe[0]) {
1664			if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1665					&dev->i2c_adap[dev->def_i2c_bus],
1666					0x60, TUNER_PHILIPS_CU1216L)) {
1667				result = -EINVAL;
1668				goto out_free;
1669			}
1670		}
1671		break;
1672	case EM2870_BOARD_KWORLD_A340:
1673		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1674					&em2870_lgdt3304_dev,
1675					&dev->i2c_adap[dev->def_i2c_bus]);
1676		if (!dvb->fe[0]) {
1677			result = -EINVAL;
1678			goto out_free;
1679		}
1680		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1681				&dev->i2c_adap[dev->def_i2c_bus],
1682				&kworld_a340_config)) {
1683			dvb_frontend_detach(dvb->fe[0]);
1684			result = -EINVAL;
1685			goto out_free;
1686		}
1687		break;
1688	case EM28174_BOARD_PCTV_290E:
1689		/* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1690		dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1691				CXD2820R_GPIO_L;
1692		dvb->fe[0] = dvb_attach(cxd2820r_attach,
1693					&em28xx_cxd2820r_config,
1694					&dev->i2c_adap[dev->def_i2c_bus],
1695					&dvb->lna_gpio);
1696		if (dvb->fe[0]) {
1697			/* FE 0 attach tuner */
1698			if (!dvb_attach(tda18271_attach,
1699					dvb->fe[0],
1700					0x60,
1701					&dev->i2c_adap[dev->def_i2c_bus],
1702					&em28xx_cxd2820r_tda18271_config)) {
1703				dvb_frontend_detach(dvb->fe[0]);
1704				result = -EINVAL;
1705				goto out_free;
1706			}
1707
1708#ifdef CONFIG_GPIOLIB
1709			/* enable LNA for DVB-T, DVB-T2 and DVB-C */
1710			result = gpio_request_one(dvb->lna_gpio,
1711						  GPIOF_OUT_INIT_LOW, NULL);
1712			if (result)
1713				dev_err(&dev->intf->dev,
1714					"gpio request failed %d\n",
1715					result);
1716			else
1717				gpio_free(dvb->lna_gpio);
1718
1719			result = 0; /* continue even set LNA fails */
1720#endif
1721			dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1722		}
1723
1724		break;
1725	case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1726	{
1727		struct xc5000_config cfg = {};
1728
1729		hauppauge_hvr930c_init(dev);
1730
1731		dvb->fe[0] = dvb_attach(drxk_attach,
1732					&hauppauge_930c_drxk,
1733					&dev->i2c_adap[dev->def_i2c_bus]);
1734		if (!dvb->fe[0]) {
1735			result = -EINVAL;
1736			goto out_free;
1737		}
1738		/* FIXME: do we need a pll semaphore? */
1739		dvb->fe[0]->sec_priv = dvb;
1740		sema_init(&dvb->pll_mutex, 1);
1741		dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1742		dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1743
1744		/* Attach xc5000 */
1745		cfg.i2c_address  = 0x61;
1746		cfg.if_khz = 4000;
1747
1748		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1749			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1750		if (!dvb_attach(xc5000_attach, dvb->fe[0],
1751				&dev->i2c_adap[dev->def_i2c_bus], &cfg)) {
1752			result = -EINVAL;
1753			goto out_free;
1754		}
1755		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1756			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1757
1758		break;
1759	}
1760	case EM2884_BOARD_TERRATEC_H5:
1761		terratec_h5_init(dev);
1762
1763		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk,
1764					&dev->i2c_adap[dev->def_i2c_bus]);
1765		if (!dvb->fe[0]) {
1766			result = -EINVAL;
1767			goto out_free;
1768		}
1769		/* FIXME: do we need a pll semaphore? */
1770		dvb->fe[0]->sec_priv = dvb;
1771		sema_init(&dvb->pll_mutex, 1);
1772		dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1773		dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1774
1775		/* Attach tda18271 to DVB-C frontend */
1776		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1777			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1778		if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
1779				&dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1780			result = -EINVAL;
1781			goto out_free;
1782		}
1783		if (dvb->fe[0]->ops.i2c_gate_ctrl)
1784			dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1785
1786		break;
1787	case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1788		dvb->fe[0] = dvb_attach(mb86a20s_attach,
1789					&c3tech_duo_mb86a20s_config,
1790					&dev->i2c_adap[dev->def_i2c_bus]);
1791		if (dvb->fe[0])
1792			dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1793				   &dev->i2c_adap[dev->def_i2c_bus],
1794				   &c3tech_duo_tda18271_config);
1795		break;
1796	case EM28174_BOARD_PCTV_460E:
1797		result = em28174_dvb_init_pctv_460e(dev);
1798		if (result)
1799			goto out_free;
1800		break;
1801	case EM2874_BOARD_DELOCK_61959:
1802	case EM2874_BOARD_MAXMEDIA_UB425_TC:
1803		/* attach demodulator */
1804		dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1805					&dev->i2c_adap[dev->def_i2c_bus]);
1806
1807		if (dvb->fe[0]) {
1808			/* disable I2C-gate */
1809			dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1810
1811			/* attach tuner */
1812			if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1813					&dev->i2c_adap[dev->def_i2c_bus],
1814					&em28xx_cxd2820r_tda18271_config)) {
1815				dvb_frontend_detach(dvb->fe[0]);
1816				result = -EINVAL;
1817				goto out_free;
1818			}
1819		}
1820		break;
1821	case EM2884_BOARD_PCTV_510E:
1822	case EM2884_BOARD_PCTV_520E:
1823		pctv_520e_init(dev);
1824
1825		/* attach demodulator */
1826		dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1827					&dev->i2c_adap[dev->def_i2c_bus]);
1828
1829		if (dvb->fe[0]) {
1830			/* attach tuner */
1831			if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1832					&dev->i2c_adap[dev->def_i2c_bus],
1833					&em28xx_cxd2820r_tda18271_config)) {
1834				dvb_frontend_detach(dvb->fe[0]);
1835				result = -EINVAL;
1836				goto out_free;
1837			}
1838		}
1839		break;
1840	case EM2884_BOARD_ELGATO_EYETV_HYBRID_2008:
1841	case EM2884_BOARD_CINERGY_HTC_STICK:
1842	case EM2884_BOARD_TERRATEC_H6:
1843		terratec_htc_stick_init(dev);
1844
1845		/* attach demodulator */
1846		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1847					&dev->i2c_adap[dev->def_i2c_bus]);
1848		if (!dvb->fe[0]) {
1849			result = -EINVAL;
1850			goto out_free;
1851		}
1852
1853		/* Attach the demodulator. */
1854		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1855				&dev->i2c_adap[dev->def_i2c_bus],
1856				&em28xx_cxd2820r_tda18271_config)) {
1857			result = -EINVAL;
1858			goto out_free;
1859		}
1860		break;
1861	case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1862		terratec_htc_usb_xs_init(dev);
1863
1864		/* attach demodulator */
1865		dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1866					&dev->i2c_adap[dev->def_i2c_bus]);
1867		if (!dvb->fe[0]) {
1868			result = -EINVAL;
1869			goto out_free;
1870		}
1871
1872		/* Attach the demodulator. */
1873		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1874				&dev->i2c_adap[dev->def_i2c_bus],
1875				&em28xx_cxd2820r_tda18271_config)) {
1876			result = -EINVAL;
1877			goto out_free;
1878		}
1879		break;
1880	case EM2874_BOARD_KWORLD_UB435Q_V2:
1881		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1882					&em2874_lgdt3305_dev,
1883					&dev->i2c_adap[dev->def_i2c_bus]);
1884		if (!dvb->fe[0]) {
1885			result = -EINVAL;
1886			goto out_free;
1887		}
1888
1889		/* Attach the demodulator. */
1890		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1891				&dev->i2c_adap[dev->def_i2c_bus],
1892				&kworld_ub435q_v2_config)) {
1893			result = -EINVAL;
1894			goto out_free;
1895		}
1896		break;
1897	case EM2874_BOARD_KWORLD_UB435Q_V3:
1898	{
1899		struct i2c_adapter *adapter = &dev->i2c_adap[dev->def_i2c_bus];
1900
1901		dvb->fe[0] = dvb_attach(lgdt3305_attach,
1902					&em2874_lgdt3305_nogate_dev,
1903					&dev->i2c_adap[dev->def_i2c_bus]);
1904		if (!dvb->fe[0]) {
1905			result = -EINVAL;
1906			goto out_free;
1907		}
1908
1909		/* attach tuner */
1910		kworld_ub435q_v3_config.fe = dvb->fe[0];
1911
1912		dvb->i2c_client_tuner = dvb_module_probe("tda18212", NULL,
1913							 adapter, 0x60,
1914							 &kworld_ub435q_v3_config);
1915		if (!dvb->i2c_client_tuner) {
1916			dvb_frontend_detach(dvb->fe[0]);
1917			result = -ENODEV;
1918			goto out_free;
1919		}
1920		break;
1921	}
1922	case EM2874_BOARD_PCTV_HD_MINI_80E:
1923		dvb->fe[0] = dvb_attach(drx39xxj_attach,
1924					&dev->i2c_adap[dev->def_i2c_bus]);
1925		if (dvb->fe[0]) {
1926			dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0],
1927						0x60,
1928						&dev->i2c_adap[dev->def_i2c_bus],
1929						&pinnacle_80e_dvb_config);
1930			if (!dvb->fe[0]) {
1931				result = -EINVAL;
1932				goto out_free;
1933			}
1934		}
1935		break;
1936	case EM28178_BOARD_PCTV_461E:
1937		result = em28178_dvb_init_pctv_461e(dev);
1938		if (result)
1939			goto out_free;
1940		break;
1941	case EM28178_BOARD_PCTV_461E_V2:
1942		result = em28178_dvb_init_pctv_461e_v2(dev);
1943		if (result)
1944			goto out_free;
1945		break;
1946	case EM28178_BOARD_PCTV_292E:
1947		result = em28178_dvb_init_pctv_292e(dev);
1948		if (result)
1949			goto out_free;
1950		break;
1951	case EM28178_BOARD_TERRATEC_T2_STICK_HD:
1952		result = em28178_dvb_init_terratec_t2_stick_hd(dev);
1953		if (result)
1954			goto out_free;
1955		break;
1956	case EM28178_BOARD_PLEX_PX_BCUD:
1957		result = em28178_dvb_init_plex_px_bcud(dev);
1958		if (result)
1959			goto out_free;
1960		break;
1961	case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB:
1962		result = em28174_dvb_init_hauppauge_wintv_dualhd_dvb(dev);
1963		if (result)
1964			goto out_free;
1965		break;
1966	case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595:
1967		result = em28174_dvb_init_hauppauge_wintv_dualhd_01595(dev);
1968		if (result)
1969			goto out_free;
1970		break;
1971	case EM2874_BOARD_HAUPPAUGE_USB_QUADHD:
1972		result = em2874_dvb_init_hauppauge_usb_quadhd(dev);
1973		if (result)
1974			goto out_free;
1975		break;
1976	default:
1977		dev_err(&dev->intf->dev,
1978			"The frontend of your DVB/ATSC card isn't supported yet\n");
1979		break;
1980	}
1981	if (!dvb->fe[0]) {
1982		dev_err(&dev->intf->dev, "frontend initialization failed\n");
1983		result = -EINVAL;
1984		goto out_free;
1985	}
1986	/* define general-purpose callback pointer */
1987	dvb->fe[0]->callback = em28xx_tuner_callback;
1988	if (dvb->fe[1])
1989		dvb->fe[1]->callback = em28xx_tuner_callback;
1990
1991	/* register everything */
1992	result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->intf->dev);
1993
1994	if (result < 0)
1995		goto out_free;
1996
1997	if (dev->dvb_xfer_bulk) {
1998		dvb_alt = 0;
1999	} else { /* isoc */
2000		dvb_alt = dev->dvb_alt_isoc;
2001	}
2002
2003	udev = interface_to_usbdev(dev->intf);
2004	usb_set_interface(udev, dev->ifnum, dvb_alt);
2005	dev_info(&dev->intf->dev, "DVB extension successfully initialized\n");
2006
2007	kref_get(&dev->ref);
2008
2009ret:
2010	em28xx_set_mode(dev, EM28XX_SUSPEND);
2011	mutex_unlock(&dev->lock);
2012	return result;
2013
2014out_free:
2015	em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
2016	kfree(dvb);
2017	dev->dvb = NULL;
2018	goto ret;
2019}
2020
2021static inline void prevent_sleep(struct dvb_frontend_ops *ops)
2022{
2023	ops->set_voltage = NULL;
2024	ops->sleep = NULL;
2025	ops->tuner_ops.sleep = NULL;
2026}
2027
2028static int em28xx_dvb_fini(struct em28xx *dev)
2029{
2030	struct em28xx_dvb *dvb;
2031
2032	if (dev->is_audio_only) {
2033		/* Shouldn't initialize IR for this interface */
2034		return 0;
2035	}
2036
2037	if (!dev->board.has_dvb) {
2038		/* This device does not support the extension */
2039		return 0;
2040	}
2041
2042	if (!dev->dvb)
2043		return 0;
2044
2045	dev_info(&dev->intf->dev, "Closing DVB extension\n");
2046
2047	dvb = dev->dvb;
2048
2049	em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
2050
2051	if (dev->disconnected) {
2052		/*
2053		 * We cannot tell the device to sleep
2054		 * once it has been unplugged.
2055		 */
2056		if (dvb->fe[0]) {
2057			prevent_sleep(&dvb->fe[0]->ops);
2058			dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
2059		}
2060		if (dvb->fe[1]) {
2061			prevent_sleep(&dvb->fe[1]->ops);
2062			dvb->fe[1]->exit = DVB_FE_DEVICE_REMOVED;
2063		}
2064	}
2065
2066	em28xx_unregister_dvb(dvb);
2067
2068	/* release I2C module bindings */
2069	dvb_module_release(dvb->i2c_client_sec);
2070	dvb_module_release(dvb->i2c_client_tuner);
2071	dvb_module_release(dvb->i2c_client_demod);
2072
2073	kfree(dvb);
2074	dev->dvb = NULL;
2075	kref_put(&dev->ref, em28xx_free_device);
2076
2077	return 0;
2078}
2079
2080static int em28xx_dvb_suspend(struct em28xx *dev)
2081{
2082	int ret = 0;
2083
2084	if (dev->is_audio_only)
2085		return 0;
2086
2087	if (!dev->board.has_dvb)
2088		return 0;
2089
2090	dev_info(&dev->intf->dev, "Suspending DVB extension\n");
2091	if (dev->dvb) {
2092		struct em28xx_dvb *dvb = dev->dvb;
2093
2094		if (dvb->fe[0]) {
2095			ret = dvb_frontend_suspend(dvb->fe[0]);
2096			dev_info(&dev->intf->dev, "fe0 suspend %d\n", ret);
2097		}
2098		if (dvb->fe[1]) {
2099			dvb_frontend_suspend(dvb->fe[1]);
2100			dev_info(&dev->intf->dev, "fe1 suspend %d\n", ret);
2101		}
2102	}
2103
2104	return 0;
2105}
2106
2107static int em28xx_dvb_resume(struct em28xx *dev)
2108{
2109	int ret = 0;
2110
2111	if (dev->is_audio_only)
2112		return 0;
2113
2114	if (!dev->board.has_dvb)
2115		return 0;
2116
2117	dev_info(&dev->intf->dev, "Resuming DVB extension\n");
2118	if (dev->dvb) {
2119		struct em28xx_dvb *dvb = dev->dvb;
2120
2121		if (dvb->fe[0]) {
2122			ret = dvb_frontend_resume(dvb->fe[0]);
2123			dev_info(&dev->intf->dev, "fe0 resume %d\n", ret);
2124		}
2125
2126		if (dvb->fe[1]) {
2127			ret = dvb_frontend_resume(dvb->fe[1]);
2128			dev_info(&dev->intf->dev, "fe1 resume %d\n", ret);
2129		}
2130	}
2131
2132	return 0;
2133}
2134
2135static struct em28xx_ops dvb_ops = {
2136	.id   = EM28XX_DVB,
2137	.name = "Em28xx dvb Extension",
2138	.init = em28xx_dvb_init,
2139	.fini = em28xx_dvb_fini,
2140	.suspend = em28xx_dvb_suspend,
2141	.resume = em28xx_dvb_resume,
2142};
2143
2144static int __init em28xx_dvb_register(void)
2145{
2146	return em28xx_register_extension(&dvb_ops);
2147}
2148
2149static void __exit em28xx_dvb_unregister(void)
2150{
2151	em28xx_unregister_extension(&dvb_ops);
2152}
2153
2154module_init(em28xx_dvb_register);
2155module_exit(em28xx_dvb_unregister);
2156