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
63	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@kernel.org>");
64	MODULE_LICENSE("GPL v2");
65	MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
66	MODULE_VERSION(EM28XX_VERSION);
67
68	static unsigned int debug;
69	module_param(debug, int, 0644);
70	MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
71
72	DVB_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
80	struct 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
105	static 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
144	static 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, packet: -1, status: 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, packet: i, status: urb->status);
168	if (urb->status != -EPROTO)
169	continue;
170	}
171	if (!urb->actual_length)
172	continue;
173	dvb_dmx_swfilter(demux: &dev->dvb->demux, buf: urb->transfer_buffer,
174	count: urb->actual_length);
175	} else {
176	if (urb->iso_frame_desc[i].status < 0) {
177	print_err_status(dev, packet: i,
178	status: 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(demux: &dev->dvb->demux,
185	buf: urb->transfer_buffer +
186	urb->iso_frame_desc[i].offset,
187	count: urb->iso_frame_desc[i].actual_length);
188	}
189	}
190
191	return 0;
192	}
193
194	static 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(dev: udev, ifnum: dev->ifnum, alternate: dvb_alt);
220
221	rc = em28xx_set_mode(dev, set_mode: 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, mode: EM28XX_DIGITAL_MODE,
231	xfer_bulk: dev->dvb_xfer_bulk,
232	EM28XX_DVB_NUM_BUFS,
233	max_pkt_size: dvb_max_packet_size,
234	packet_multiplier,
235	urb_data_copy: em28xx_dvb_urb_data_copy);
236	}
237
238	static 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
248	static 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(lock: &dvb->lock);
268	return rc;
269	}
270
271	static 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(lock: &dvb->lock);
284	return err;
285	}
286
287	/* ------------------------------------------------------------------ */
288	static 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, set_mode: EM28XX_DIGITAL_MODE);
295	else
296	return em28xx_set_mode(dev, set_mode: EM28XX_SUSPEND);
297	}
298
299	/* ------------------------------------------------------------------ */
300
301	static struct lgdt330x_config em2880_lgdt3303_dev = {
302	.demod_chip = LGDT3303,
303	};
304
305	static 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
317	static 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
329	static 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
341	static struct s921_config sharp_isdbt = {
342	.demod_address = 0x30 >> 1
343	};
344
345	static 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
352	static 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
361	static 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
368	static struct tda18271_config kworld_a340_config = {
369	.std_map = &kworld_a340_std_map,
370	};
371
372	static struct tda18271_config kworld_ub435q_v2_config = {
373	.std_map = &kworld_a340_std_map,
374	.gate = TDA18271_GATE_DIGITAL,
375	};
376
377	static struct tda18212_config kworld_ub435q_v3_config = {
378	.if_atsc_vsb = 3600,
379	.if_atsc_qam = 3600,
380	};
381
382	static 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
390	static 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
400	static 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
408	static 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
417	static 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
430	static 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
439	static 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
449	static 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(sem: &dvb->pll_mutex);
459	status = dvb->gate_ctrl(fe, 1);
460	} else {
461	status = dvb->gate_ctrl(fe, 0);
462	up(sem: &dvb->pll_mutex);
463	}
464	return status;
465	}
466
467	static 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, gpio: hauppauge_hvr930c_init);
513	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x40);
514	usleep_range(min: 10000, max: 11000);
515	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x44);
516	usleep_range(min: 10000, max: 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(client: &dev->i2c_client[dev->def_i2c_bus],
522	buf: regs[i].r, count: regs[i].len);
523	em28xx_gpio_set(dev, gpio: hauppauge_hvr930c_end);
524
525	msleep(msecs: 100);
526
527	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x44);
528	msleep(msecs: 30);
529
530	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x45);
531	usleep_range(min: 10000, max: 11000);
532	}
533
534	static 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, gpio: terratec_h5_init);
570	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x40);
571	usleep_range(min: 10000, max: 11000);
572	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x45);
573	usleep_range(min: 10000, max: 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(client: &dev->i2c_client[dev->def_i2c_bus],
579	buf: regs[i].r, count: regs[i].len);
580	em28xx_gpio_set(dev, gpio: terratec_h5_end);
581	};
582
583	static 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, gpio: terratec_htc_stick_init);
623
624	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x40);
625	usleep_range(min: 10000, max: 11000);
626	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x44);
627	usleep_range(min: 10000, max: 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(client: &dev->i2c_client[dev->def_i2c_bus],
633	buf: regs[i].r, count: regs[i].len);
634
635	em28xx_gpio_set(dev, gpio: terratec_htc_stick_end);
636	};
637
638	static 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, val: 0x40);
680
681	em28xx_gpio_set(dev, gpio: terratec_htc_usb_xs_init);
682
683	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x40);
684	usleep_range(min: 10000, max: 11000);
685	em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, val: 0x44);
686	usleep_range(min: 10000, max: 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(client: &dev->i2c_client[dev->def_i2c_bus],
692	buf: regs[i].r, count: regs[i].len);
693
694	em28xx_gpio_set(dev, gpio: terratec_htc_usb_xs_end);
695	};
696
697	static 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(client: &dev->i2c_client[dev->def_i2c_bus],
722	buf: regs[i].r, count: regs[i].len);
723	};
724
725	static 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(gpio: 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(gpio: 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
754	static 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, val: lna, bitmask: 0x01);
767	}
768
769	static 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(min: 200, max: 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
797	static 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, val: 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(client: dev->dvb->i2c_client_demod,
845	buf: regs1[i].r, count: 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(client: dev->dvb->i2c_client_demod, buf: regs2[i].r,
850	count: regs2[i].len);
851	for (i = 0; i < ARRAY_SIZE(gpio); i++) {
852	em28xx_write_reg_bits(dev, reg: gpio[i].reg, val: gpio[i].val,
853	bitmask: gpio[i].mask);
854	if (gpio[i].sleep > 0)
855	msleep(msecs: gpio[i].sleep);
856	}
857	};
858
859	static 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
866	static struct tda10023_config em28xx_tda10023_config = {
867	.demod_address = 0x0c,
868	.invert = 1,
869	};
870
871	static struct cxd2820r_config em28xx_cxd2820r_config = {
872	.i2c_address = (0xd8 >> 1),
873	.ts_mode = CXD2820R_TS_SERIAL,
874	};
875
876	static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
877	.output_opt = TDA18271_OUTPUT_LT_OFF,
878	.gate = TDA18271_GATE_DIGITAL,
879	};
880
881	static 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
888	static struct mt2060_config em28xx_mt2060_config = {
889	.i2c_address = 0x60,
890	};
891
892	static struct qt1010_config em28xx_qt1010_config = {
893	.i2c_address = 0x62
894	};
895
896	static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
897	.demod_address = 0x10,
898	.is_serial = true,
899	};
900
901	static 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
906	static 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
912	static 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
919	static 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
925	static 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
938	static 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: &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
973	static 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(adap: &dvb->adapter,
983	name: dev_name(dev: &dev->intf->dev), module,
984	device, adapter_nums: 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(demux: &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(dmxdev: &dvb->dmxdev, adap: &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(adap: &dvb->adapter, dvbnet: &dvb->net, dmxdemux: &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(adap: &dvb->adapter, create_rf_connector);
1085	if (result < 0)
1086	goto fail_create_graph;
1087
1088	return 0;
1089
1090	fail_create_graph:
1091	dvb_net_release(dvbnet: &dvb->net);
1092	fail_fe_conn:
1093	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1094	fail_fe_mem:
1095	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1096	fail_fe_hw:
1097	dvb_dmxdev_release(dmxdev: &dvb->dmxdev);
1098	fail_dmxdev:
1099	dvb_dmx_release(demux: &dvb->demux);
1100	fail_dmx:
1101	if (dvb->fe[1])
1102	dvb_unregister_frontend(dvb->fe[1]);
1103	dvb_unregister_frontend(dvb->fe[0]);
1104	fail_frontend1:
1105	if (dvb->fe[1])
1106	dvb_frontend_detach(dvb->fe[1]);
1107	fail_frontend0:
1108	dvb_frontend_detach(dvb->fe[0]);
1109	dvb_unregister_adapter(adap: &dvb->adapter);
1110	fail_adapter:
1111	return result;
1112	}
1113
1114	static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1115	{
1116	dvb_net_release(dvbnet: &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(dmxdev: &dvb->dmxdev);
1120	dvb_dmx_release(demux: &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(adap: &dvb->adapter);
1128	}
1129
1130	static 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(module_name: "tda10071", name: "tda10071_cx24118",
1144	adap: &dev->i2c_adap[dev->def_i2c_bus],
1145	addr: 0x55, platform_data: &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(module_name: "a8293", NULL,
1155	adap: &dev->i2c_adap[dev->def_i2c_bus],
1156	addr: 0x08, platform_data: &a8293_pdata);
1157	if (!dvb->i2c_client_sec) {
1158	dvb_module_release(client: dvb->i2c_client_demod);
1159	return -ENODEV;
1160	}
1161
1162	return 0;
1163	}
1164
1165	static 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(module_name: "m88ds3103", NULL,
1182	adap: &dev->i2c_adap[dev->def_i2c_bus],
1183	addr: 0x68, platform_data: &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(module_name: "ts2020", name: "ts2022",
1194	adap: i2c_adapter,
1195	addr: 0x60, platform_data: &ts2020_config);
1196	if (!dvb->i2c_client_tuner) {
1197	dvb_module_release(client: 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(module_name: "a8293", NULL,
1214	adap: &dev->i2c_adap[dev->def_i2c_bus],
1215	addr: 0x08, platform_data: &a8293_pdata);
1216	if (!dvb->i2c_client_sec) {
1217	dvb_module_release(client: dvb->i2c_client_tuner);
1218	dvb_module_release(client: dvb->i2c_client_demod);
1219	return -ENODEV;
1220	}
1221
1222	return 0;
1223	}
1224
1225	static 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(module_name: "m88ds3103", name: "m88ds3103b",
1243	adap: &dev->i2c_adap[dev->def_i2c_bus],
1244	addr: 0x6a, platform_data: &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(module_name: "ts2020", name: "ts2022",
1255	adap: i2c_adapter,
1256	addr: 0x60, platform_data: &ts2020_config);
1257	if (!dvb->i2c_client_tuner) {
1258	dvb_module_release(client: 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(module_name: "a8293", NULL,
1269	adap: &dev->i2c_adap[dev->def_i2c_bus],
1270	addr: 0x08, platform_data: &a8293_pdata);
1271	if (!dvb->i2c_client_sec) {
1272	dvb_module_release(client: dvb->i2c_client_tuner);
1273	dvb_module_release(client: dvb->i2c_client_demod);
1274	return -ENODEV;
1275	}
1276
1277	return 0;
1278	}
1279
1280	static 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(module_name: "si2168", NULL,
1294	adap: &dev->i2c_adap[dev->def_i2c_bus],
1295	addr: 0x64, platform_data: &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(module_name: "si2157", NULL,
1306	adap: adapter,
1307	addr: 0x60, platform_data: &si2157_config);
1308	if (!dvb->i2c_client_tuner) {
1309	dvb_module_release(client: 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
1317	static 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(module_name: "si2168", NULL,
1330	adap: &dev->i2c_adap[dev->def_i2c_bus],
1331	addr: 0x64, platform_data: &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(module_name: "si2157", name: "si2146",
1343	adap: adapter,
1344	addr: 0x60, platform_data: &si2157_config);
1345	if (!dvb->i2c_client_tuner) {
1346	dvb_module_release(client: dvb->i2c_client_demod);
1347	return -ENODEV;
1348	}
1349
1350	return 0;
1351	}
1352
1353	static 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(module_name: "tc90522", name: "tc90522sat",
1361	adap: &dev->i2c_adap[dev->def_i2c_bus],
1362	addr: 0x15, platform_data: &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(module_name: "qm1d1c0042", NULL,
1371	adap: tc90522_config.tuner_i2c,
1372	addr: 0x61, platform_data: &qm1d1c0042_config);
1373	if (!dvb->i2c_client_tuner) {
1374	dvb_module_release(client: 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
1384	static 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(module_name: "si2168", NULL,
1400	adap: &dev->i2c_adap[dev->def_i2c_bus],
1401	addr, platform_data: &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(module_name: "si2157", NULL,
1415	adap: adapter,
1416	addr, platform_data: &si2157_config);
1417	if (!dvb->i2c_client_tuner) {
1418	dvb_module_release(client: dvb->i2c_client_demod);
1419	return -ENODEV;
1420	}
1421
1422	return 0;
1423	}
1424
1425	static 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(module_name: "lgdt3306a", NULL,
1440	adap: &dev->i2c_adap[dev->def_i2c_bus],
1441	addr, platform_data: &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(module_name: "si2157", NULL,
1455	adap: adapter,
1456	addr, platform_data: &si2157_config);
1457	if (!dvb->i2c_client_tuner) {
1458	dvb_module_release(client: dvb->i2c_client_demod);
1459	return -ENODEV;
1460	}
1461
1462	return 0;
1463	}
1464
1465	static 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(module_name: "mxl692", NULL,
1477	adap: &dev->i2c_adap[dev->def_i2c_bus],
1478	addr, platform_data: &mxl692_config);
1479	if (!dvb->i2c_client_demod)
1480	return -ENODEV;
1481
1482	return 0;
1483	}
1484
1485	static 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, mode: EM28XX_DIGITAL_MODE,
1514	xfer_bulk: dev->dvb_xfer_bulk,
1515	EM28XX_DVB_NUM_BUFS,
1516	max_pkt_size: 512,
1517	EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1518	} else {
1519	result = em28xx_alloc_urbs(dev, mode: EM28XX_DIGITAL_MODE,
1520	xfer_bulk: dev->dvb_xfer_bulk,
1521	EM28XX_DVB_NUM_BUFS,
1522	max_pkt_size: 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(objp: dvb);
1529	dev->dvb = NULL;
1530	return result;
1531	}
1532
1533	mutex_lock(&dev->lock);
1534	em28xx_set_mode(dev, set_mode: 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(addr: 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(addr: 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(addr: 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(addr: 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(addr: 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(addr: 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(gpio: 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(gpio: 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(sem: &dvb->pll_mutex, val: 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(sem: &dvb->pll_mutex, val: 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(module_name: "tda18212", NULL,
1913	adap: adapter, addr: 0x60,
1914	platform_data: &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, device: &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(dev: udev, ifnum: dev->ifnum, alternate: dvb_alt);
2005	dev_info(&dev->intf->dev, "DVB extension successfully initialized\n");
2006
2007	kref_get(kref: &dev->ref);
2008
2009	ret:
2010	em28xx_set_mode(dev, set_mode: EM28XX_SUSPEND);
2011	mutex_unlock(lock: &dev->lock);
2012	return result;
2013
2014	out_free:
2015	em28xx_uninit_usb_xfer(dev, mode: EM28XX_DIGITAL_MODE);
2016	kfree(objp: dvb);
2017	dev->dvb = NULL;
2018	goto ret;
2019	}
2020
2021	static 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
2028	static 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, mode: 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(ops: &dvb->fe[0]->ops);
2058	dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
2059	}
2060	if (dvb->fe[1]) {
2061	prevent_sleep(ops: &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(client: dvb->i2c_client_sec);
2070	dvb_module_release(client: dvb->i2c_client_tuner);
2071	dvb_module_release(client: dvb->i2c_client_demod);
2072
2073	kfree(objp: dvb);
2074	dev->dvb = NULL;
2075	kref_put(kref: &dev->ref, release: em28xx_free_device);
2076
2077	return 0;
2078	}
2079
2080	static 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
2107	static 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
2135	static 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
2144	static int __init em28xx_dvb_register(void)
2145	{
2146	return em28xx_register_extension(dev: &dvb_ops);
2147	}
2148
2149	static void __exit em28xx_dvb_unregister(void)
2150	{
2151	em28xx_unregister_extension(dev: &dvb_ops);
2152	}
2153
2154	module_init(em28xx_dvb_register);
2155	module_exit(em28xx_dvb_unregister);
2156