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em28xx-dvb.c

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linux-6.19.14/drivers/media/usb/em28xx/em28xx-dvb.c C
   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_LEGACY
 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_LEGACY
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);
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