af9035.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Afatech AF9035 DVB USB driver
   4 *
   5 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   6 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
   7 */
   8
   9#include "af9035.h"
  10
  11/* Max transfer size done by I2C transfer functions */
  12#define MAX_XFER_SIZE  64
  13
  14DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  15
  16static u16 af9035_checksum(const u8 *buf, size_t len)
  17{
  18	size_t i;
  19	u16 checksum = 0;
  20
  21	for (i = 1; i < len; i++) {
  22		if (i % 2)
  23			checksum += buf[i] << 8;
  24		else
  25			checksum += buf[i];
  26	}
  27	checksum = ~checksum;
  28
  29	return checksum;
  30}
  31
  32static int af9035_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
  33{
  34#define REQ_HDR_LEN 4 /* send header size */
  35#define ACK_HDR_LEN 3 /* rece header size */
  36#define CHECKSUM_LEN 2
  37#define USB_TIMEOUT 2000
  38	struct state *state = d_to_priv(d);
  39	struct usb_interface *intf = d->intf;
  40	int ret, wlen, rlen;
  41	u16 checksum, tmp_checksum;
  42
  43	mutex_lock(&d->usb_mutex);
  44
  45	/* buffer overflow check */
  46	if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
  47			req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
  48		dev_err(&intf->dev, "too much data wlen=%d rlen=%d\n",
  49			req->wlen, req->rlen);
  50		ret = -EINVAL;
  51		goto exit;
  52	}
  53
  54	state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
  55	state->buf[1] = req->mbox;
  56	state->buf[2] = req->cmd;
  57	state->buf[3] = state->seq++;
  58	memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
  59
  60	wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
  61	rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
  62
  63	/* calc and add checksum */
  64	checksum = af9035_checksum(state->buf, state->buf[0] - 1);
  65	state->buf[state->buf[0] - 1] = (checksum >> 8);
  66	state->buf[state->buf[0] - 0] = (checksum & 0xff);
  67
  68	/* no ack for these packets */
  69	if (req->cmd == CMD_FW_DL)
  70		rlen = 0;
  71
  72	ret = dvb_usbv2_generic_rw_locked(d,
  73			state->buf, wlen, state->buf, rlen);
  74	if (ret)
  75		goto exit;
  76
  77	/* no ack for those packets */
  78	if (req->cmd == CMD_FW_DL)
  79		goto exit;
  80
  81	/* verify checksum */
  82	checksum = af9035_checksum(state->buf, rlen - 2);
  83	tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
  84	if (tmp_checksum != checksum) {
  85		dev_err(&intf->dev, "command=%02x checksum mismatch (%04x != %04x)\n",
  86			req->cmd, tmp_checksum, checksum);
  87		ret = -EIO;
  88		goto exit;
  89	}
  90
  91	/* check status */
  92	if (state->buf[2]) {
  93		/* fw returns status 1 when IR code was not received */
  94		if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
  95			ret = 1;
  96			goto exit;
  97		}
  98
  99		dev_dbg(&intf->dev, "command=%02x failed fw error=%d\n",
 100			req->cmd, state->buf[2]);
 101		ret = -EIO;
 102		goto exit;
 103	}
 104
 105	/* read request, copy returned data to return buf */
 106	if (req->rlen)
 107		memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 108exit:
 109	mutex_unlock(&d->usb_mutex);
 110	return ret;
 111}
 112
 113/* write multiple registers */
 114static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 115{
 116	struct usb_interface *intf = d->intf;
 117	u8 wbuf[MAX_XFER_SIZE];
 118	u8 mbox = (reg >> 16) & 0xff;
 119	struct usb_req req = { CMD_MEM_WR, mbox, 6 + len, wbuf, 0, NULL };
 120
 121	if (6 + len > sizeof(wbuf)) {
 122		dev_warn(&intf->dev, "i2c wr: len=%d is too big!\n", len);
 123		return -EOPNOTSUPP;
 124	}
 125
 126	wbuf[0] = len;
 127	wbuf[1] = 2;
 128	wbuf[2] = 0;
 129	wbuf[3] = 0;
 130	wbuf[4] = (reg >> 8) & 0xff;
 131	wbuf[5] = (reg >> 0) & 0xff;
 132	memcpy(&wbuf[6], val, len);
 133
 134	return af9035_ctrl_msg(d, &req);
 135}
 136
 137/* read multiple registers */
 138static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 139{
 140	u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 141	u8 mbox = (reg >> 16) & 0xff;
 142	struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 143
 144	return af9035_ctrl_msg(d, &req);
 145}
 146
 147/* write single register */
 148static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 149{
 150	return af9035_wr_regs(d, reg, &val, 1);
 151}
 152
 153/* read single register */
 154static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 155{
 156	return af9035_rd_regs(d, reg, val, 1);
 157}
 158
 159/* write single register with mask */
 160static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 161		u8 mask)
 162{
 163	int ret;
 164	u8 tmp;
 165
 166	/* no need for read if whole reg is written */
 167	if (mask != 0xff) {
 168		ret = af9035_rd_regs(d, reg, &tmp, 1);
 169		if (ret)
 170			return ret;
 171
 172		val &= mask;
 173		tmp &= ~mask;
 174		val |= tmp;
 175	}
 176
 177	return af9035_wr_regs(d, reg, &val, 1);
 178}
 179
 180static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type,
 181		u8 addr, void *platform_data, struct i2c_adapter *adapter)
 182{
 183	int ret, num;
 184	struct state *state = d_to_priv(d);
 185	struct usb_interface *intf = d->intf;
 186	struct i2c_client *client;
 187	struct i2c_board_info board_info = {
 188		.addr = addr,
 189		.platform_data = platform_data,
 190	};
 191
 192	strscpy(board_info.type, type, I2C_NAME_SIZE);
 193
 194	/* find first free client */
 195	for (num = 0; num < AF9035_I2C_CLIENT_MAX; num++) {
 196		if (state->i2c_client[num] == NULL)
 197			break;
 198	}
 199
 200	dev_dbg(&intf->dev, "num=%d\n", num);
 201
 202	if (num == AF9035_I2C_CLIENT_MAX) {
 203		dev_err(&intf->dev, "I2C client out of index\n");
 204		ret = -ENODEV;
 205		goto err;
 206	}
 207
 208	request_module("%s", board_info.type);
 209
 210	/* register I2C device */
 211	client = i2c_new_client_device(adapter, &board_info);
 212	if (!i2c_client_has_driver(client)) {
 213		dev_err(&intf->dev, "failed to bind i2c device to %s driver\n", type);
 214		ret = -ENODEV;
 215		goto err;
 216	}
 217
 218	/* increase I2C driver usage count */
 219	if (!try_module_get(client->dev.driver->owner)) {
 220		i2c_unregister_device(client);
 221		ret = -ENODEV;
 222		goto err;
 223	}
 224
 225	state->i2c_client[num] = client;
 226	return 0;
 227err:
 228	dev_dbg(&intf->dev, "failed=%d\n", ret);
 229	return ret;
 230}
 231
 232static void af9035_del_i2c_dev(struct dvb_usb_device *d)
 233{
 234	int num;
 235	struct state *state = d_to_priv(d);
 236	struct usb_interface *intf = d->intf;
 237	struct i2c_client *client;
 238
 239	/* find last used client */
 240	num = AF9035_I2C_CLIENT_MAX;
 241	while (num--) {
 242		if (state->i2c_client[num] != NULL)
 243			break;
 244	}
 245
 246	dev_dbg(&intf->dev, "num=%d\n", num);
 247
 248	if (num == -1) {
 249		dev_err(&intf->dev, "I2C client out of index\n");
 250		goto err;
 251	}
 252
 253	client = state->i2c_client[num];
 254
 255	/* decrease I2C driver usage count */
 256	module_put(client->dev.driver->owner);
 257
 258	/* unregister I2C device */
 259	i2c_unregister_device(client);
 260
 261	state->i2c_client[num] = NULL;
 262	return;
 263err:
 264	dev_dbg(&intf->dev, "failed\n");
 265}
 266
 267static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 268		struct i2c_msg msg[], int num)
 269{
 270	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 271	struct state *state = d_to_priv(d);
 272	int ret;
 273
 274	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 275		return -EAGAIN;
 276
 277	/*
 278	 * AF9035 I2C sub header is 5 bytes long. Meaning of those bytes are:
 279	 * 0: data len
 280	 * 1: I2C addr << 1
 281	 * 2: reg addr len
 282	 *    byte 3 and 4 can be used as reg addr
 283	 * 3: reg addr MSB
 284	 *    used when reg addr len is set to 2
 285	 * 4: reg addr LSB
 286	 *    used when reg addr len is set to 1 or 2
 287	 *
 288	 * For the simplify we do not use register addr at all.
 289	 * NOTE: As a firmware knows tuner type there is very small possibility
 290	 * there could be some tuner I2C hacks done by firmware and this may
 291	 * lead problems if firmware expects those bytes are used.
 292	 *
 293	 * TODO: Here is few hacks. AF9035 chip integrates AF9033 demodulator.
 294	 * IT9135 chip integrates AF9033 demodulator and RF tuner. For dual
 295	 * tuner devices, there is also external AF9033 demodulator connected
 296	 * via external I2C bus. All AF9033 demod I2C traffic, both single and
 297	 * dual tuner configuration, is covered by firmware - actual USB IO
 298	 * looks just like a memory access.
 299	 * In case of IT913x chip, there is own tuner driver. It is implemented
 300	 * currently as a I2C driver, even tuner IP block is likely build
 301	 * directly into the demodulator memory space and there is no own I2C
 302	 * bus. I2C subsystem does not allow register multiple devices to same
 303	 * bus, having same slave address. Due to that we reuse demod address,
 304	 * shifted by one bit, on that case.
 305	 *
 306	 * For IT930x we use a different command and the sub header is
 307	 * different as well:
 308	 * 0: data len
 309	 * 1: I2C bus (0x03 seems to be only value used)
 310	 * 2: I2C addr << 1
 311	 */
 312#define AF9035_IS_I2C_XFER_WRITE_READ(_msg, _num) \
 313	(_num == 2 && !(_msg[0].flags & I2C_M_RD) && (_msg[1].flags & I2C_M_RD))
 314#define AF9035_IS_I2C_XFER_WRITE(_msg, _num) \
 315	(_num == 1 && !(_msg[0].flags & I2C_M_RD))
 316#define AF9035_IS_I2C_XFER_READ(_msg, _num) \
 317	(_num == 1 && (_msg[0].flags & I2C_M_RD))
 318
 319	if (AF9035_IS_I2C_XFER_WRITE_READ(msg, num)) {
 320		if (msg[0].len > 40 || msg[1].len > 40) {
 321			/* TODO: correct limits > 40 */
 322			ret = -EOPNOTSUPP;
 323		} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 324			   (msg[0].addr == state->af9033_i2c_addr[1])) {
 325			/* demod access via firmware interface */
 326			u32 reg;
 327
 328			if (msg[0].len < 3 || msg[1].len < 1) {
 329				ret = -EOPNOTSUPP;
 330				goto unlock;
 331			}
 332
 333			reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 334				msg[0].buf[2];
 335
 336			if (msg[0].addr == state->af9033_i2c_addr[1])
 337				reg |= 0x100000;
 338
 339			ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 340					msg[1].len);
 341		} else if (state->no_read) {
 342			memset(msg[1].buf, 0, msg[1].len);
 343			ret = 0;
 344		} else {
 345			/* I2C write + read */
 346			u8 buf[MAX_XFER_SIZE];
 347			struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
 348					buf, msg[1].len, msg[1].buf };
 349
 350			if (state->chip_type == 0x9306) {
 351				req.cmd = CMD_GENERIC_I2C_RD;
 352				req.wlen = 3 + msg[0].len;
 353			}
 354			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 355
 356			buf[0] = msg[1].len;
 357			if (state->chip_type == 0x9306) {
 358				buf[1] = 0x03; /* I2C bus */
 359				buf[2] = msg[0].addr << 1;
 360				memcpy(&buf[3], msg[0].buf, msg[0].len);
 361			} else {
 362				buf[1] = msg[0].addr << 1;
 363				buf[3] = 0x00; /* reg addr MSB */
 364				buf[4] = 0x00; /* reg addr LSB */
 365
 366				/* Keep prev behavior for write req len > 2*/
 367				if (msg[0].len > 2) {
 368					buf[2] = 0x00; /* reg addr len */
 369					memcpy(&buf[5], msg[0].buf, msg[0].len);
 370
 371				/* Use reg addr fields if write req len <= 2 */
 372				} else {
 373					req.wlen = 5;
 374					buf[2] = msg[0].len;
 375					if (msg[0].len == 2) {
 376						buf[3] = msg[0].buf[0];
 377						buf[4] = msg[0].buf[1];
 378					} else if (msg[0].len == 1) {
 379						buf[4] = msg[0].buf[0];
 380					}
 381				}
 382			}
 383			ret = af9035_ctrl_msg(d, &req);
 384		}
 385	} else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) {
 386		if (msg[0].len > 40) {
 387			/* TODO: correct limits > 40 */
 388			ret = -EOPNOTSUPP;
 389		} else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 390			   (msg[0].addr == state->af9033_i2c_addr[1])) {
 391			/* demod access via firmware interface */
 392			u32 reg;
 393
 394			if (msg[0].len < 3) {
 395				ret = -EOPNOTSUPP;
 396				goto unlock;
 397			}
 398
 399			reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 400				msg[0].buf[2];
 401
 402			if (msg[0].addr == state->af9033_i2c_addr[1])
 403				reg |= 0x100000;
 404
 405			ret = af9035_wr_regs(d, reg, &msg[0].buf[3], msg[0].len - 3);
 406		} else {
 407			/* I2C write */
 408			u8 buf[MAX_XFER_SIZE];
 409			struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 410					buf, 0, NULL };
 411
 412			if (state->chip_type == 0x9306) {
 413				req.cmd = CMD_GENERIC_I2C_WR;
 414				req.wlen = 3 + msg[0].len;
 415			}
 416
 417			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 418			buf[0] = msg[0].len;
 419			if (state->chip_type == 0x9306) {
 420				buf[1] = 0x03; /* I2C bus */
 421				buf[2] = msg[0].addr << 1;
 422				memcpy(&buf[3], msg[0].buf, msg[0].len);
 423			} else {
 424				buf[1] = msg[0].addr << 1;
 425				buf[2] = 0x00; /* reg addr len */
 426				buf[3] = 0x00; /* reg addr MSB */
 427				buf[4] = 0x00; /* reg addr LSB */
 428				memcpy(&buf[5], msg[0].buf, msg[0].len);
 429			}
 430			ret = af9035_ctrl_msg(d, &req);
 431		}
 432	} else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
 433		if (msg[0].len > 40) {
 434			/* TODO: correct limits > 40 */
 435			ret = -EOPNOTSUPP;
 436		} else if (state->no_read) {
 437			memset(msg[0].buf, 0, msg[0].len);
 438			ret = 0;
 439		} else {
 440			/* I2C read */
 441			u8 buf[5];
 442			struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 443						buf, msg[0].len, msg[0].buf };
 444
 445			if (state->chip_type == 0x9306) {
 446				req.cmd = CMD_GENERIC_I2C_RD;
 447				req.wlen = 3;
 448			}
 449			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 450			buf[0] = msg[0].len;
 451			if (state->chip_type == 0x9306) {
 452				buf[1] = 0x03; /* I2C bus */
 453				buf[2] = msg[0].addr << 1;
 454			} else {
 455				buf[1] = msg[0].addr << 1;
 456				buf[2] = 0x00; /* reg addr len */
 457				buf[3] = 0x00; /* reg addr MSB */
 458				buf[4] = 0x00; /* reg addr LSB */
 459			}
 460			ret = af9035_ctrl_msg(d, &req);
 461		}
 462	} else {
 463		/*
 464		 * We support only three kind of I2C transactions:
 465		 * 1) 1 x write + 1 x read (repeated start)
 466		 * 2) 1 x write
 467		 * 3) 1 x read
 468		 */
 469		ret = -EOPNOTSUPP;
 470	}
 471
 472unlock:
 473	mutex_unlock(&d->i2c_mutex);
 474
 475	if (ret < 0)
 476		return ret;
 477	else
 478		return num;
 479}
 480
 481static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 482{
 483	return I2C_FUNC_I2C;
 484}
 485
 486static const struct i2c_algorithm af9035_i2c_algo = {
 487	.master_xfer = af9035_i2c_master_xfer,
 488	.functionality = af9035_i2c_functionality,
 489};
 490
 491static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 492{
 493	struct state *state = d_to_priv(d);
 494	struct usb_interface *intf = d->intf;
 495	int ret, i, ts_mode_invalid;
 496	unsigned int utmp, eeprom_addr;
 497	u8 tmp;
 498	u8 wbuf[1] = { 1 };
 499	u8 rbuf[4];
 500	struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 501			sizeof(rbuf), rbuf };
 502
 503	ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 504	if (ret < 0)
 505		goto err;
 506
 507	state->chip_version = rbuf[0];
 508	state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 509
 510	ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 511	if (ret < 0)
 512		goto err;
 513
 514	dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 515		 state->prechip_version, state->chip_version, state->chip_type);
 516
 517	if (state->chip_type == 0x9135) {
 518		if (state->chip_version == 0x02) {
 519			*name = AF9035_FIRMWARE_IT9135_V2;
 520			utmp = 0x00461d;
 521		} else {
 522			*name = AF9035_FIRMWARE_IT9135_V1;
 523			utmp = 0x00461b;
 524		}
 525
 526		/* Check if eeprom exists */
 527		ret = af9035_rd_reg(d, utmp, &tmp);
 528		if (ret < 0)
 529			goto err;
 530
 531		if (tmp == 0x00) {
 532			dev_dbg(&intf->dev, "no eeprom\n");
 533			state->no_eeprom = true;
 534			goto check_firmware_status;
 535		}
 536
 537		eeprom_addr = EEPROM_BASE_IT9135;
 538	} else if (state->chip_type == 0x9306) {
 539		*name = AF9035_FIRMWARE_IT9303;
 540		state->no_eeprom = true;
 541		goto check_firmware_status;
 542	} else {
 543		*name = AF9035_FIRMWARE_AF9035;
 544		eeprom_addr = EEPROM_BASE_AF9035;
 545	}
 546
 547	/* Read and store eeprom */
 548	for (i = 0; i < 256; i += 32) {
 549		ret = af9035_rd_regs(d, eeprom_addr + i, &state->eeprom[i], 32);
 550		if (ret < 0)
 551			goto err;
 552	}
 553
 554	dev_dbg(&intf->dev, "eeprom dump:\n");
 555	for (i = 0; i < 256; i += 16)
 556		dev_dbg(&intf->dev, "%*ph\n", 16, &state->eeprom[i]);
 557
 558	/* check for dual tuner mode */
 559	tmp = state->eeprom[EEPROM_TS_MODE];
 560	ts_mode_invalid = 0;
 561	switch (tmp) {
 562	case 0:
 563		break;
 564	case 1:
 565	case 3:
 566		state->dual_mode = true;
 567		break;
 568	case 5:
 569		if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
 570			state->dual_mode = true;	/* AF9035 */
 571		else
 572			ts_mode_invalid = 1;
 573		break;
 574	default:
 575		ts_mode_invalid = 1;
 576	}
 577
 578	dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
 579
 580	if (ts_mode_invalid)
 581		dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 582
 583check_firmware_status:
 584	ret = af9035_ctrl_msg(d, &req);
 585	if (ret < 0)
 586		goto err;
 587
 588	dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
 589	if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 590		ret = WARM;
 591	else
 592		ret = COLD;
 593
 594	return ret;
 595
 596err:
 597	dev_dbg(&intf->dev, "failed=%d\n", ret);
 598
 599	return ret;
 600}
 601
 602static int af9035_download_firmware_old(struct dvb_usb_device *d,
 603		const struct firmware *fw)
 604{
 605	struct usb_interface *intf = d->intf;
 606	int ret, i, j, len;
 607	u8 wbuf[1];
 608	struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 609	struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 610	u8 hdr_core;
 611	u16 hdr_addr, hdr_data_len, hdr_checksum;
 612	#define MAX_DATA 58
 613	#define HDR_SIZE 7
 614
 615	/*
 616	 * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 617	 *
 618	 * byte 0: MCS 51 core
 619	 *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 620	 *  address spaces
 621	 * byte 1-2: Big endian destination address
 622	 * byte 3-4: Big endian number of data bytes following the header
 623	 * byte 5-6: Big endian header checksum, apparently ignored by the chip
 624	 *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 625	 */
 626
 627	for (i = fw->size; i > HDR_SIZE;) {
 628		hdr_core = fw->data[fw->size - i + 0];
 629		hdr_addr = fw->data[fw->size - i + 1] << 8;
 630		hdr_addr |= fw->data[fw->size - i + 2] << 0;
 631		hdr_data_len = fw->data[fw->size - i + 3] << 8;
 632		hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 633		hdr_checksum = fw->data[fw->size - i + 5] << 8;
 634		hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 635
 636		dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
 637			hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
 638
 639		if (((hdr_core != 1) && (hdr_core != 2)) ||
 640				(hdr_data_len > i)) {
 641			dev_dbg(&intf->dev, "bad firmware\n");
 642			break;
 643		}
 644
 645		/* download begin packet */
 646		req.cmd = CMD_FW_DL_BEGIN;
 647		ret = af9035_ctrl_msg(d, &req);
 648		if (ret < 0)
 649			goto err;
 650
 651		/* download firmware packet(s) */
 652		for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 653			len = j;
 654			if (len > MAX_DATA)
 655				len = MAX_DATA;
 656			req_fw_dl.wlen = len;
 657			req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 658					HDR_SIZE + hdr_data_len - j];
 659			ret = af9035_ctrl_msg(d, &req_fw_dl);
 660			if (ret < 0)
 661				goto err;
 662		}
 663
 664		/* download end packet */
 665		req.cmd = CMD_FW_DL_END;
 666		ret = af9035_ctrl_msg(d, &req);
 667		if (ret < 0)
 668			goto err;
 669
 670		i -= hdr_data_len + HDR_SIZE;
 671
 672		dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
 673	}
 674
 675	/* print warn if firmware is bad, continue and see what happens */
 676	if (i)
 677		dev_warn(&intf->dev, "bad firmware\n");
 678
 679	return 0;
 680
 681err:
 682	dev_dbg(&intf->dev, "failed=%d\n", ret);
 683
 684	return ret;
 685}
 686
 687static int af9035_download_firmware_new(struct dvb_usb_device *d,
 688		const struct firmware *fw)
 689{
 690	struct usb_interface *intf = d->intf;
 691	int ret, i, i_prev;
 692	struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 693	#define HDR_SIZE 7
 694
 695	/*
 696	 * There seems to be following firmware header. Meaning of bytes 0-3
 697	 * is unknown.
 698	 *
 699	 * 0: 3
 700	 * 1: 0, 1
 701	 * 2: 0
 702	 * 3: 1, 2, 3
 703	 * 4: addr MSB
 704	 * 5: addr LSB
 705	 * 6: count of data bytes ?
 706	 */
 707	for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 708		if (i == fw->size ||
 709				(fw->data[i + 0] == 0x03 &&
 710				(fw->data[i + 1] == 0x00 ||
 711				fw->data[i + 1] == 0x01) &&
 712				fw->data[i + 2] == 0x00)) {
 713			req_fw_dl.wlen = i - i_prev;
 714			req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 715			i_prev = i;
 716			ret = af9035_ctrl_msg(d, &req_fw_dl);
 717			if (ret < 0)
 718				goto err;
 719
 720			dev_dbg(&intf->dev, "data uploaded=%d\n", i);
 721		}
 722	}
 723
 724	return 0;
 725
 726err:
 727	dev_dbg(&intf->dev, "failed=%d\n", ret);
 728
 729	return ret;
 730}
 731
 732static int af9035_download_firmware(struct dvb_usb_device *d,
 733		const struct firmware *fw)
 734{
 735	struct usb_interface *intf = d->intf;
 736	struct state *state = d_to_priv(d);
 737	int ret;
 738	u8 wbuf[1];
 739	u8 rbuf[4];
 740	u8 tmp;
 741	struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 742	struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 743
 744	dev_dbg(&intf->dev, "\n");
 745
 746	/*
 747	 * In case of dual tuner configuration we need to do some extra
 748	 * initialization in order to download firmware to slave demod too,
 749	 * which is done by master demod.
 750	 * Master feeds also clock and controls power via GPIO.
 751	 */
 752	if (state->dual_mode) {
 753		/* configure gpioh1, reset & power slave demod */
 754		ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 755		if (ret < 0)
 756			goto err;
 757
 758		ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 759		if (ret < 0)
 760			goto err;
 761
 762		ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 763		if (ret < 0)
 764			goto err;
 765
 766		usleep_range(10000, 50000);
 767
 768		ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 769		if (ret < 0)
 770			goto err;
 771
 772		/* tell the slave I2C address */
 773		tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 774
 775		/* Use default I2C address if eeprom has no address set */
 776		if (!tmp)
 777			tmp = 0x1d << 1; /* 8-bit format used by chip */
 778
 779		if ((state->chip_type == 0x9135) ||
 780				(state->chip_type == 0x9306)) {
 781			ret = af9035_wr_reg(d, 0x004bfb, tmp);
 782			if (ret < 0)
 783				goto err;
 784		} else {
 785			ret = af9035_wr_reg(d, 0x00417f, tmp);
 786			if (ret < 0)
 787				goto err;
 788
 789			/* enable clock out */
 790			ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 791			if (ret < 0)
 792				goto err;
 793		}
 794	}
 795
 796	if (fw->data[0] == 0x01)
 797		ret = af9035_download_firmware_old(d, fw);
 798	else
 799		ret = af9035_download_firmware_new(d, fw);
 800	if (ret < 0)
 801		goto err;
 802
 803	/* firmware loaded, request boot */
 804	req.cmd = CMD_FW_BOOT;
 805	ret = af9035_ctrl_msg(d, &req);
 806	if (ret < 0)
 807		goto err;
 808
 809	/* ensure firmware starts */
 810	wbuf[0] = 1;
 811	ret = af9035_ctrl_msg(d, &req_fw_ver);
 812	if (ret < 0)
 813		goto err;
 814
 815	if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 816		dev_err(&intf->dev, "firmware did not run\n");
 817		ret = -ENODEV;
 818		goto err;
 819	}
 820
 821	dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
 822		 rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 823
 824	return 0;
 825
 826err:
 827	dev_dbg(&intf->dev, "failed=%d\n", ret);
 828
 829	return ret;
 830}
 831
 832static int af9035_read_config(struct dvb_usb_device *d)
 833{
 834	struct usb_interface *intf = d->intf;
 835	struct state *state = d_to_priv(d);
 836	int ret, i;
 837	u8 tmp;
 838	u16 tmp16;
 839
 840	/* Demod I2C address */
 841	state->af9033_i2c_addr[0] = 0x1c;
 842	state->af9033_i2c_addr[1] = 0x1d;
 843	state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 844	state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 845	state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 846	state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 847	state->it930x_addresses = 0;
 848
 849	if (state->chip_type == 0x9135) {
 850		/* feed clock for integrated RF tuner */
 851		state->af9033_config[0].dyn0_clk = true;
 852		state->af9033_config[1].dyn0_clk = true;
 853
 854		if (state->chip_version == 0x02) {
 855			state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 856			state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 857		} else {
 858			state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 859			state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 860		}
 861
 862		if (state->no_eeprom) {
 863			/* Remote controller to NEC polling by default */
 864			state->ir_mode = 0x05;
 865			state->ir_type = 0x00;
 866
 867			goto skip_eeprom;
 868		}
 869	} else if (state->chip_type == 0x9306) {
 870		/*
 871		 * IT930x is an USB bridge, only single demod-single tuner
 872		 * configurations seen so far.
 873		 */
 874		if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA) &&
 875		    (le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_AVERMEDIA_TD310)) {
 876			state->it930x_addresses = 1;
 877			/* TD310 RC works with NEC defaults */
 878			state->ir_mode = 0x05;
 879			state->ir_type = 0x00;
 880		}
 881		return 0;
 882	}
 883
 884	/* Remote controller */
 885	state->ir_mode = state->eeprom[EEPROM_IR_MODE];
 886	state->ir_type = state->eeprom[EEPROM_IR_TYPE];
 887
 888	if (state->dual_mode) {
 889		/* Read 2nd demodulator I2C address. 8-bit format on eeprom */
 890		tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 891		if (tmp)
 892			state->af9033_i2c_addr[1] = tmp >> 1;
 893
 894		dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n",
 895			state->af9033_i2c_addr[1]);
 896	}
 897
 898	for (i = 0; i < state->dual_mode + 1; i++) {
 899		unsigned int eeprom_offset = 0;
 900
 901		/* tuner */
 902		tmp = state->eeprom[EEPROM_1_TUNER_ID + eeprom_offset];
 903		dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 904
 905		/* tuner sanity check */
 906		if (state->chip_type == 0x9135) {
 907			if (state->chip_version == 0x02) {
 908				/* IT9135 BX (v2) */
 909				switch (tmp) {
 910				case AF9033_TUNER_IT9135_60:
 911				case AF9033_TUNER_IT9135_61:
 912				case AF9033_TUNER_IT9135_62:
 913					state->af9033_config[i].tuner = tmp;
 914					break;
 915				}
 916			} else {
 917				/* IT9135 AX (v1) */
 918				switch (tmp) {
 919				case AF9033_TUNER_IT9135_38:
 920				case AF9033_TUNER_IT9135_51:
 921				case AF9033_TUNER_IT9135_52:
 922					state->af9033_config[i].tuner = tmp;
 923					break;
 924				}
 925			}
 926		} else {
 927			/* AF9035 */
 928			state->af9033_config[i].tuner = tmp;
 929		}
 930
 931		if (state->af9033_config[i].tuner != tmp) {
 932			dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
 933				 i, tmp, state->af9033_config[i].tuner);
 934		}
 935
 936		switch (state->af9033_config[i].tuner) {
 937		case AF9033_TUNER_TUA9001:
 938		case AF9033_TUNER_FC0011:
 939		case AF9033_TUNER_MXL5007T:
 940		case AF9033_TUNER_TDA18218:
 941		case AF9033_TUNER_FC2580:
 942		case AF9033_TUNER_FC0012:
 943			state->af9033_config[i].spec_inv = 1;
 944			break;
 945		case AF9033_TUNER_IT9135_38:
 946		case AF9033_TUNER_IT9135_51:
 947		case AF9033_TUNER_IT9135_52:
 948		case AF9033_TUNER_IT9135_60:
 949		case AF9033_TUNER_IT9135_61:
 950		case AF9033_TUNER_IT9135_62:
 951			break;
 952		default:
 953			dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
 954				 tmp);
 955		}
 956
 957		/* disable dual mode if driver does not support it */
 958		if (i == 1)
 959			switch (state->af9033_config[i].tuner) {
 960			case AF9033_TUNER_FC0012:
 961			case AF9033_TUNER_IT9135_38:
 962			case AF9033_TUNER_IT9135_51:
 963			case AF9033_TUNER_IT9135_52:
 964			case AF9033_TUNER_IT9135_60:
 965			case AF9033_TUNER_IT9135_61:
 966			case AF9033_TUNER_IT9135_62:
 967			case AF9033_TUNER_MXL5007T:
 968				break;
 969			default:
 970				state->dual_mode = false;
 971				dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
 972		}
 973
 974		/* tuner IF frequency */
 975		tmp = state->eeprom[EEPROM_1_IF_L + eeprom_offset];
 976		tmp16 = tmp << 0;
 977		tmp = state->eeprom[EEPROM_1_IF_H + eeprom_offset];
 978		tmp16 |= tmp << 8;
 979		dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 980
 981		eeprom_offset += 0x10; /* shift for the 2nd tuner params */
 982	}
 983
 984skip_eeprom:
 985	/* get demod clock */
 986	ret = af9035_rd_reg(d, 0x00d800, &tmp);
 987	if (ret < 0)
 988		goto err;
 989
 990	tmp = (tmp >> 0) & 0x0f;
 991
 992	for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 993		if (state->chip_type == 0x9135)
 994			state->af9033_config[i].clock = clock_lut_it9135[tmp];
 995		else
 996			state->af9033_config[i].clock = clock_lut_af9035[tmp];
 997	}
 998
 999	state->no_read = false;
1000	/* Some MXL5007T devices cannot properly handle tuner I2C read ops. */
1001	if (state->af9033_config[0].tuner == AF9033_TUNER_MXL5007T &&
1002		le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA)
1003
1004		switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
1005		case USB_PID_AVERMEDIA_A867:
1006		case USB_PID_AVERMEDIA_TWINSTAR:
1007			dev_info(&intf->dev,
1008				 "Device may have issues with I2C read operations. Enabling fix.\n");
1009			state->no_read = true;
1010			break;
1011		}
1012
1013	return 0;
1014
1015err:
1016	dev_dbg(&intf->dev, "failed=%d\n", ret);
1017
1018	return ret;
1019}
1020
1021static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
1022		int cmd, int arg)
1023{
1024	struct usb_interface *intf = d->intf;
1025	int ret;
1026	u8 val;
1027
1028	dev_dbg(&intf->dev, "cmd=%d arg=%d\n", cmd, arg);
1029
1030	/*
1031	 * CEN     always enabled by hardware wiring
1032	 * RESETN  GPIOT3
1033	 * RXEN    GPIOT2
1034	 */
1035
1036	switch (cmd) {
1037	case TUA9001_CMD_RESETN:
1038		if (arg)
1039			val = 0x00;
1040		else
1041			val = 0x01;
1042
1043		ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
1044		if (ret < 0)
1045			goto err;
1046		break;
1047	case TUA9001_CMD_RXEN:
1048		if (arg)
1049			val = 0x01;
1050		else
1051			val = 0x00;
1052
1053		ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
1054		if (ret < 0)
1055			goto err;
1056		break;
1057	}
1058
1059	return 0;
1060
1061err:
1062	dev_dbg(&intf->dev, "failed=%d\n", ret);
1063
1064	return ret;
1065}
1066
1067
1068static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
1069		int cmd, int arg)
1070{
1071	struct usb_interface *intf = d->intf;
1072	int ret;
1073
1074	switch (cmd) {
1075	case FC0011_FE_CALLBACK_POWER:
1076		/* Tuner enable */
1077		ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
1078		if (ret < 0)
1079			goto err;
1080
1081		ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
1082		if (ret < 0)
1083			goto err;
1084
1085		ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
1086		if (ret < 0)
1087			goto err;
1088
1089		/* LED */
1090		ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
1091		if (ret < 0)
1092			goto err;
1093
1094		ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
1095		if (ret < 0)
1096			goto err;
1097
1098		usleep_range(10000, 50000);
1099		break;
1100	case FC0011_FE_CALLBACK_RESET:
1101		ret = af9035_wr_reg(d, 0xd8e9, 1);
1102		if (ret < 0)
1103			goto err;
1104
1105		ret = af9035_wr_reg(d, 0xd8e8, 1);
1106		if (ret < 0)
1107			goto err;
1108
1109		ret = af9035_wr_reg(d, 0xd8e7, 1);
1110		if (ret < 0)
1111			goto err;
1112
1113		usleep_range(10000, 20000);
1114
1115		ret = af9035_wr_reg(d, 0xd8e7, 0);
1116		if (ret < 0)
1117			goto err;
1118
1119		usleep_range(10000, 20000);
1120		break;
1121	default:
1122		ret = -EINVAL;
1123		goto err;
1124	}
1125
1126	return 0;
1127
1128err:
1129	dev_dbg(&intf->dev, "failed=%d\n", ret);
1130
1131	return ret;
1132}
1133
1134static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
1135{
1136	struct state *state = d_to_priv(d);
1137
1138	switch (state->af9033_config[0].tuner) {
1139	case AF9033_TUNER_FC0011:
1140		return af9035_fc0011_tuner_callback(d, cmd, arg);
1141	case AF9033_TUNER_TUA9001:
1142		return af9035_tua9001_tuner_callback(d, cmd, arg);
1143	default:
1144		break;
1145	}
1146
1147	return 0;
1148}
1149
1150static int af9035_frontend_callback(void *adapter_priv, int component,
1151				    int cmd, int arg)
1152{
1153	struct i2c_adapter *adap = adapter_priv;
1154	struct dvb_usb_device *d = i2c_get_adapdata(adap);
1155	struct usb_interface *intf = d->intf;
1156
1157	dev_dbg(&intf->dev, "component=%d cmd=%d arg=%d\n",
1158		component, cmd, arg);
1159
1160	switch (component) {
1161	case DVB_FRONTEND_COMPONENT_TUNER:
1162		return af9035_tuner_callback(d, cmd, arg);
1163	default:
1164		break;
1165	}
1166
1167	return 0;
1168}
1169
1170static int af9035_get_adapter_count(struct dvb_usb_device *d)
1171{
1172	struct state *state = d_to_priv(d);
1173
1174	return state->dual_mode + 1;
1175}
1176
1177static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
1178{
1179	struct state *state = adap_to_priv(adap);
1180	struct dvb_usb_device *d = adap_to_d(adap);
1181	struct usb_interface *intf = d->intf;
1182	int ret;
1183
1184	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1185
1186	if (!state->af9033_config[adap->id].tuner) {
1187		/* unsupported tuner */
1188		ret = -ENODEV;
1189		goto err;
1190	}
1191
1192	state->af9033_config[adap->id].fe = &adap->fe[0];
1193	state->af9033_config[adap->id].ops = &state->ops;
1194	ret = af9035_add_i2c_dev(d, "af9033", state->af9033_i2c_addr[adap->id],
1195			&state->af9033_config[adap->id], &d->i2c_adap);
1196	if (ret)
1197		goto err;
1198
1199	if (adap->fe[0] == NULL) {
1200		ret = -ENODEV;
1201		goto err;
1202	}
1203
1204	/* disable I2C-gate */
1205	adap->fe[0]->ops.i2c_gate_ctrl = NULL;
1206	adap->fe[0]->callback = af9035_frontend_callback;
1207
1208	return 0;
1209
1210err:
1211	dev_dbg(&intf->dev, "failed=%d\n", ret);
1212
1213	return ret;
1214}
1215
1216/*
1217 * The I2C speed register is calculated with:
1218 *	I2C speed register = (1000000000 / (24.4 * 16 * I2C_speed))
1219 *
1220 * The default speed register for it930x is 7, with means a
1221 * speed of ~366 kbps
1222 */
1223#define I2C_SPEED_366K 7
1224
1225static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
1226{
1227	struct state *state = adap_to_priv(adap);
1228	struct dvb_usb_device *d = adap_to_d(adap);
1229	struct usb_interface *intf = d->intf;
1230	int ret;
1231	struct si2168_config si2168_config;
1232	struct i2c_adapter *adapter;
1233
1234	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1235
1236	/* I2C master bus 2 clock speed 366k */
1237	ret = af9035_wr_reg(d, 0x00f6a7, I2C_SPEED_366K);
1238	if (ret < 0)
1239		goto err;
1240
1241	/* I2C master bus 1,3 clock speed 366k */
1242	ret = af9035_wr_reg(d, 0x00f103, I2C_SPEED_366K);
1243	if (ret < 0)
1244		goto err;
1245
1246	/* set gpio11 low */
1247	ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1248	if (ret < 0)
1249		goto err;
1250
1251	ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1252	if (ret < 0)
1253		goto err;
1254
1255	ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1256	if (ret < 0)
1257		goto err;
1258
1259	/* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1260	ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1261	if (ret < 0)
1262		goto err;
1263
1264	ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1265	if (ret < 0)
1266		goto err;
1267
1268	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1269	if (ret < 0)
1270		goto err;
1271
1272	msleep(200);
1273
1274	ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1275	if (ret < 0)
1276		goto err;
1277
1278	memset(&si2168_config, 0, sizeof(si2168_config));
1279	si2168_config.i2c_adapter = &adapter;
1280	si2168_config.fe = &adap->fe[0];
1281	si2168_config.ts_mode = SI2168_TS_SERIAL;
1282
1283	state->af9033_config[adap->id].fe = &adap->fe[0];
1284	state->af9033_config[adap->id].ops = &state->ops;
1285	ret = af9035_add_i2c_dev(d, "si2168",
1286				 it930x_addresses_table[state->it930x_addresses].frontend_i2c_addr,
1287				 &si2168_config, &d->i2c_adap);
1288	if (ret)
1289		goto err;
1290
1291	if (adap->fe[0] == NULL) {
1292		ret = -ENODEV;
1293		goto err;
1294	}
1295	state->i2c_adapter_demod = adapter;
1296
1297	return 0;
1298
1299err:
1300	dev_dbg(&intf->dev, "failed=%d\n", ret);
1301
1302	return ret;
1303}
1304
1305static int af9035_frontend_detach(struct dvb_usb_adapter *adap)
1306{
1307	struct state *state = adap_to_priv(adap);
1308	struct dvb_usb_device *d = adap_to_d(adap);
1309	struct usb_interface *intf = d->intf;
1310
1311	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1312
1313	if (adap->id == 1) {
1314		if (state->i2c_client[1])
1315			af9035_del_i2c_dev(d);
1316	} else if (adap->id == 0) {
1317		if (state->i2c_client[0])
1318			af9035_del_i2c_dev(d);
1319	}
1320
1321	return 0;
1322}
1323
1324static const struct fc0011_config af9035_fc0011_config = {
1325	.i2c_address = 0x60,
1326};
1327
1328static struct mxl5007t_config af9035_mxl5007t_config[] = {
1329	{
1330		.xtal_freq_hz = MxL_XTAL_24_MHZ,
1331		.if_freq_hz = MxL_IF_4_57_MHZ,
1332		.invert_if = 0,
1333		.loop_thru_enable = 0,
1334		.clk_out_enable = 0,
1335		.clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1336	}, {
1337		.xtal_freq_hz = MxL_XTAL_24_MHZ,
1338		.if_freq_hz = MxL_IF_4_57_MHZ,
1339		.invert_if = 0,
1340		.loop_thru_enable = 1,
1341		.clk_out_enable = 1,
1342		.clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1343	}
1344};
1345
1346static struct tda18218_config af9035_tda18218_config = {
1347	.i2c_address = 0x60,
1348	.i2c_wr_max = 21,
1349};
1350
1351static const struct fc0012_config af9035_fc0012_config[] = {
1352	{
1353		.i2c_address = 0x63,
1354		.xtal_freq = FC_XTAL_36_MHZ,
1355		.dual_master = true,
1356		.loop_through = true,
1357		.clock_out = true,
1358	}, {
1359		.i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1360		.xtal_freq = FC_XTAL_36_MHZ,
1361		.dual_master = true,
1362	}
1363};
1364
1365static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1366{
1367	struct state *state = adap_to_priv(adap);
1368	struct dvb_usb_device *d = adap_to_d(adap);
1369	struct usb_interface *intf = d->intf;
1370	int ret;
1371	struct dvb_frontend *fe;
1372	struct i2c_msg msg[1];
1373	u8 tuner_addr;
1374
1375	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1376
1377	/*
1378	 * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1379	 * to carry info about used I2C bus for dual tuner configuration.
1380	 */
1381
1382	switch (state->af9033_config[adap->id].tuner) {
1383	case AF9033_TUNER_TUA9001: {
1384		struct tua9001_platform_data tua9001_pdata = {
1385			.dvb_frontend = adap->fe[0],
1386		};
1387
1388		/*
1389		 * AF9035 gpiot3 = TUA9001 RESETN
1390		 * AF9035 gpiot2 = TUA9001 RXEN
1391		 */
1392
1393		/* configure gpiot2 and gpiot2 as output */
1394		ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1395		if (ret < 0)
1396			goto err;
1397
1398		ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1399		if (ret < 0)
1400			goto err;
1401
1402		ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1403		if (ret < 0)
1404			goto err;
1405
1406		ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1407		if (ret < 0)
1408			goto err;
1409
1410		/* attach tuner */
1411		ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1412					 &d->i2c_adap);
1413		if (ret)
1414			goto err;
1415
1416		fe = adap->fe[0];
1417		break;
1418	}
1419	case AF9033_TUNER_FC0011:
1420		fe = dvb_attach(fc0011_attach, adap->fe[0],
1421				&d->i2c_adap, &af9035_fc0011_config);
1422		break;
1423	case AF9033_TUNER_MXL5007T:
1424		if (adap->id == 0) {
1425			ret = af9035_wr_reg(d, 0x00d8e0, 1);
1426			if (ret < 0)
1427				goto err;
1428
1429			ret = af9035_wr_reg(d, 0x00d8e1, 1);
1430			if (ret < 0)
1431				goto err;
1432
1433			ret = af9035_wr_reg(d, 0x00d8df, 0);
1434			if (ret < 0)
1435				goto err;
1436
1437			msleep(30);
1438
1439			ret = af9035_wr_reg(d, 0x00d8df, 1);
1440			if (ret < 0)
1441				goto err;
1442
1443			msleep(300);
1444
1445			ret = af9035_wr_reg(d, 0x00d8c0, 1);
1446			if (ret < 0)
1447				goto err;
1448
1449			ret = af9035_wr_reg(d, 0x00d8c1, 1);
1450			if (ret < 0)
1451				goto err;
1452
1453			ret = af9035_wr_reg(d, 0x00d8bf, 0);
1454			if (ret < 0)
1455				goto err;
1456
1457			ret = af9035_wr_reg(d, 0x00d8b4, 1);
1458			if (ret < 0)
1459				goto err;
1460
1461			ret = af9035_wr_reg(d, 0x00d8b5, 1);
1462			if (ret < 0)
1463				goto err;
1464
1465			ret = af9035_wr_reg(d, 0x00d8b3, 1);
1466			if (ret < 0)
1467				goto err;
1468
1469			tuner_addr = 0x60;
1470		} else {
1471			tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1472		}
1473
1474		/* attach tuner */
1475		fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1476				tuner_addr, &af9035_mxl5007t_config[adap->id]);
1477		break;
1478	case AF9033_TUNER_TDA18218:
1479		/* attach tuner */
1480		fe = dvb_attach(tda18218_attach, adap->fe[0],
1481				&d->i2c_adap, &af9035_tda18218_config);
1482		break;
1483	case AF9033_TUNER_FC2580: {
1484		struct fc2580_platform_data fc2580_pdata = {
1485			.dvb_frontend = adap->fe[0],
1486		};
1487
1488		/* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1489		ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1490		if (ret < 0)
1491			goto err;
1492
1493		ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1494		if (ret < 0)
1495			goto err;
1496
1497		ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1498		if (ret < 0)
1499			goto err;
1500
1501		usleep_range(10000, 50000);
1502		/* attach tuner */
1503		ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1504					 &d->i2c_adap);
1505		if (ret)
1506			goto err;
1507
1508		fe = adap->fe[0];
1509		break;
1510	}
1511	case AF9033_TUNER_FC0012:
1512		/*
1513		 * AF9035 gpiot2 = FC0012 enable
1514		 * XXX: there seems to be something on gpioh8 too, but on my
1515		 * test I didn't find any difference.
1516		 */
1517
1518		if (adap->id == 0) {
1519			/* configure gpiot2 as output and high */
1520			ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1521			if (ret < 0)
1522				goto err;
1523
1524			ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1525			if (ret < 0)
1526				goto err;
1527
1528			ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1529			if (ret < 0)
1530				goto err;
1531		} else {
1532			/*
1533			 * FIXME: That belongs for the FC0012 driver.
1534			 * Write 02 to FC0012 master tuner register 0d directly
1535			 * in order to make slave tuner working.
1536			 */
1537			msg[0].addr = 0x63;
1538			msg[0].flags = 0;
1539			msg[0].len = 2;
1540			msg[0].buf = "\x0d\x02";
1541			ret = i2c_transfer(&d->i2c_adap, msg, 1);
1542			if (ret < 0)
1543				goto err;
1544		}
1545
1546		usleep_range(10000, 50000);
1547
1548		fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1549				&af9035_fc0012_config[adap->id]);
1550		break;
1551	case AF9033_TUNER_IT9135_38:
1552	case AF9033_TUNER_IT9135_51:
1553	case AF9033_TUNER_IT9135_52:
1554	case AF9033_TUNER_IT9135_60:
1555	case AF9033_TUNER_IT9135_61:
1556	case AF9033_TUNER_IT9135_62:
1557	{
1558		struct platform_device *pdev;
1559		const char *name;
1560		struct it913x_platform_data it913x_pdata = {
1561			.regmap = state->af9033_config[adap->id].regmap,
1562			.fe = adap->fe[0],
1563		};
1564
1565		switch (state->af9033_config[adap->id].tuner) {
1566		case AF9033_TUNER_IT9135_38:
1567		case AF9033_TUNER_IT9135_51:
1568		case AF9033_TUNER_IT9135_52:
1569			name = "it9133ax-tuner";
1570			break;
1571		case AF9033_TUNER_IT9135_60:
1572		case AF9033_TUNER_IT9135_61:
1573		case AF9033_TUNER_IT9135_62:
1574			name = "it9133bx-tuner";
1575			break;
1576		default:
1577			ret = -ENODEV;
1578			goto err;
1579		}
1580
1581		if (state->dual_mode) {
1582			if (adap->id == 0)
1583				it913x_pdata.role = IT913X_ROLE_DUAL_MASTER;
1584			else
1585				it913x_pdata.role = IT913X_ROLE_DUAL_SLAVE;
1586		} else {
1587			it913x_pdata.role = IT913X_ROLE_SINGLE;
1588		}
1589
1590		request_module("%s", "it913x");
1591		pdev = platform_device_register_data(&d->intf->dev, name,
1592						     PLATFORM_DEVID_AUTO,
1593						     &it913x_pdata,
1594						     sizeof(it913x_pdata));
1595		if (IS_ERR(pdev) || !pdev->dev.driver) {
1596			ret = -ENODEV;
1597			goto err;
1598		}
1599		if (!try_module_get(pdev->dev.driver->owner)) {
1600			platform_device_unregister(pdev);
1601			ret = -ENODEV;
1602			goto err;
1603		}
1604
1605		state->platform_device_tuner[adap->id] = pdev;
1606		fe = adap->fe[0];
1607		break;
1608	}
1609	default:
1610		fe = NULL;
1611	}
1612
1613	if (fe == NULL) {
1614		ret = -ENODEV;
1615		goto err;
1616	}
1617
1618	return 0;
1619
1620err:
1621	dev_dbg(&intf->dev, "failed=%d\n", ret);
1622
1623	return ret;
1624}
1625
1626static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1627{
1628	struct state *state = adap_to_priv(adap);
1629	struct dvb_usb_device *d = adap_to_d(adap);
1630	struct usb_interface *intf = d->intf;
1631	int ret;
1632	struct si2157_config si2157_config;
1633
1634	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1635
1636	memset(&si2157_config, 0, sizeof(si2157_config));
1637	si2157_config.fe = adap->fe[0];
1638
1639	/*
1640	 * HACK: The Logilink VG0022A and TerraTec TC2 Stick have
1641	 * a bug: when the si2157 firmware that came with the device
1642	 * is replaced by a new one, the I2C transfers to the tuner
1643	 * will return just 0xff.
1644	 *
1645	 * Probably, the vendor firmware has some patch specifically
1646	 * designed for this device. So, we can't replace by the
1647	 * generic firmware. The right solution would be to extract
1648	 * the si2157 firmware from the original driver and ask the
1649	 * driver to load the specifically designed firmware, but,
1650	 * while we don't have that, the next best solution is to just
1651	 * keep the original firmware at the device.
1652	 */
1653	if ((le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_DEXATEK &&
1654	     le16_to_cpu(d->udev->descriptor.idProduct) == 0x0100) ||
1655	    (le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_TERRATEC &&
1656	     le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_TERRATEC_CINERGY_TC2_STICK))
1657		si2157_config.dont_load_firmware = true;
1658
1659	si2157_config.if_port = it930x_addresses_table[state->it930x_addresses].tuner_if_port;
1660	ret = af9035_add_i2c_dev(d, "si2157",
1661				 it930x_addresses_table[state->it930x_addresses].tuner_i2c_addr,
1662				 &si2157_config, state->i2c_adapter_demod);
1663	if (ret)
1664		goto err;
1665
1666	return 0;
1667
1668err:
1669	dev_dbg(&intf->dev, "failed=%d\n", ret);
1670
1671	return ret;
1672}
1673
1674
1675static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1676{
1677	struct state *state = adap_to_priv(adap);
1678	struct dvb_usb_device *d = adap_to_d(adap);
1679	struct usb_interface *intf = d->intf;
1680
1681	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1682
1683	if (adap->id == 1) {
1684		if (state->i2c_client[3])
1685			af9035_del_i2c_dev(d);
1686	} else if (adap->id == 0) {
1687		if (state->i2c_client[1])
1688			af9035_del_i2c_dev(d);
1689	}
1690
1691	return 0;
1692}
1693
1694
1695static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1696{
1697	struct state *state = adap_to_priv(adap);
1698	struct dvb_usb_device *d = adap_to_d(adap);
1699	struct usb_interface *intf = d->intf;
1700
1701	dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1702
1703	switch (state->af9033_config[adap->id].tuner) {
1704	case AF9033_TUNER_TUA9001:
1705	case AF9033_TUNER_FC2580:
1706		if (adap->id == 1) {
1707			if (state->i2c_client[3])
1708				af9035_del_i2c_dev(d);
1709		} else if (adap->id == 0) {
1710			if (state->i2c_client[1])
1711				af9035_del_i2c_dev(d);
1712		}
1713		break;
1714	case AF9033_TUNER_IT9135_38:
1715	case AF9033_TUNER_IT9135_51:
1716	case AF9033_TUNER_IT9135_52:
1717	case AF9033_TUNER_IT9135_60:
1718	case AF9033_TUNER_IT9135_61:
1719	case AF9033_TUNER_IT9135_62:
1720	{
1721		struct platform_device *pdev;
1722
1723		pdev = state->platform_device_tuner[adap->id];
1724		if (pdev) {
1725			module_put(pdev->dev.driver->owner);
1726			platform_device_unregister(pdev);
1727		}
1728		break;
1729	}
1730	}
1731
1732	return 0;
1733}
1734
1735static int af9035_init(struct dvb_usb_device *d)
1736{
1737	struct state *state = d_to_priv(d);
1738	struct usb_interface *intf = d->intf;
1739	int ret, i;
1740	u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1741	u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1742	struct reg_val_mask tab[] = {
1743		{ 0x80f99d, 0x01, 0x01 },
1744		{ 0x80f9a4, 0x01, 0x01 },
1745		{ 0x00dd11, 0x00, 0x20 },
1746		{ 0x00dd11, 0x00, 0x40 },
1747		{ 0x00dd13, 0x00, 0x20 },
1748		{ 0x00dd13, 0x00, 0x40 },
1749		{ 0x00dd11, 0x20, 0x20 },
1750		{ 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1751		{ 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1752		{ 0x00dd0c, packet_size, 0xff},
1753		{ 0x00dd11, state->dual_mode << 6, 0x40 },
1754		{ 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1755		{ 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1756		{ 0x00dd0d, packet_size, 0xff },
1757		{ 0x80f9a3, state->dual_mode, 0x01 },
1758		{ 0x80f9cd, state->dual_mode, 0x01 },
1759		{ 0x80f99d, 0x00, 0x01 },
1760		{ 0x80f9a4, 0x00, 0x01 },
1761	};
1762
1763	dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1764		d->udev->speed, frame_size, packet_size);
1765
1766	/* init endpoints */
1767	for (i = 0; i < ARRAY_SIZE(tab); i++) {
1768		ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1769				tab[i].mask);
1770		if (ret < 0)
1771			goto err;
1772	}
1773
1774	return 0;
1775
1776err:
1777	dev_dbg(&intf->dev, "failed=%d\n", ret);
1778
1779	return ret;
1780}
1781
1782static int it930x_init(struct dvb_usb_device *d)
1783{
1784	struct state *state = d_to_priv(d);
1785	struct usb_interface *intf = d->intf;
1786	int ret, i;
1787	u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4;
1788	u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1789	struct reg_val_mask tab[] = {
1790		{ 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */
1791		{ 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */
1792		{ 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */
1793		{ 0x00f41a, 0x01, 0x01 }, /* dvbt_en */
1794		{ 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */
1795		{ 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */
1796		{ 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */
1797		{ 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */
1798		{ 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */
1799		{ 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */
1800		{ 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */
1801		{ 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1802		{ 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1803		{ 0x00dd0c, packet_size, 0xff},
1804		{ 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1805		{ 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1806		{ 0x00dd0d, packet_size, 0xff },
1807		{ 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */
1808		{ 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */
1809		{ 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */
1810		{ 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */
1811		{ 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */
1812
1813		/* suspend gpio1 for TS-C */
1814		{ 0x00d8b0, 0x01, 0xff }, /* gpio1 */
1815		{ 0x00d8b1, 0x01, 0xff }, /* gpio1 */
1816		{ 0x00d8af, 0x00, 0xff }, /* gpio1 */
1817
1818		/* suspend gpio7 for TS-D */
1819		{ 0x00d8c4, 0x01, 0xff }, /* gpio7 */
1820		{ 0x00d8c5, 0x01, 0xff }, /* gpio7 */
1821		{ 0x00d8c3, 0x00, 0xff }, /* gpio7 */
1822
1823		/* suspend gpio13 for TS-B */
1824		{ 0x00d8dc, 0x01, 0xff }, /* gpio13 */
1825		{ 0x00d8dd, 0x01, 0xff }, /* gpio13 */
1826		{ 0x00d8db, 0x00, 0xff }, /* gpio13 */
1827
1828		/* suspend gpio14 for TS-E */
1829		{ 0x00d8e4, 0x01, 0xff }, /* gpio14 */
1830		{ 0x00d8e5, 0x01, 0xff }, /* gpio14 */
1831		{ 0x00d8e3, 0x00, 0xff }, /* gpio14 */
1832
1833		/* suspend gpio15 for TS-A */
1834		{ 0x00d8e8, 0x01, 0xff }, /* gpio15 */
1835		{ 0x00d8e9, 0x01, 0xff }, /* gpio15 */
1836		{ 0x00d8e7, 0x00, 0xff }, /* gpio15 */
1837
1838		{ 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */
1839		{ 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */
1840		{ 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */
1841		{ 0x00da4c, 0x01, 0xff }, /* ts0_en */
1842		{ 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */
1843	};
1844
1845	dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1846		d->udev->speed, frame_size, packet_size);
1847
1848	/* init endpoints */
1849	for (i = 0; i < ARRAY_SIZE(tab); i++) {
1850		ret = af9035_wr_reg_mask(d, tab[i].reg,
1851				tab[i].val, tab[i].mask);
1852
1853		if (ret < 0)
1854			goto err;
1855	}
1856
1857	return 0;
1858err:
1859	dev_dbg(&intf->dev, "failed=%d\n", ret);
1860
1861	return ret;
1862}
1863
1864
1865#if IS_ENABLED(CONFIG_RC_CORE)
1866static int af9035_rc_query(struct dvb_usb_device *d)
1867{
1868	struct usb_interface *intf = d->intf;
1869	int ret;
1870	enum rc_proto proto;
1871	u32 key;
1872	u8 buf[4];
1873	struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1874
1875	ret = af9035_ctrl_msg(d, &req);
1876	if (ret == 1)
1877		return 0;
1878	else if (ret < 0)
1879		goto err;
1880
1881	if ((buf[2] + buf[3]) == 0xff) {
1882		if ((buf[0] + buf[1]) == 0xff) {
1883			/* NEC standard 16bit */
1884			key = RC_SCANCODE_NEC(buf[0], buf[2]);
1885			proto = RC_PROTO_NEC;
1886		} else {
1887			/* NEC extended 24bit */
1888			key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1889			proto = RC_PROTO_NECX;
1890		}
1891	} else {
1892		/* NEC full code 32bit */
1893		key = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1894					buf[2] << 8  | buf[3]);
1895		proto = RC_PROTO_NEC32;
1896	}
1897
1898	dev_dbg(&intf->dev, "%*ph\n", 4, buf);
1899
1900	rc_keydown(d->rc_dev, proto, key, 0);
1901
1902	return 0;
1903
1904err:
1905	dev_dbg(&intf->dev, "failed=%d\n", ret);
1906
1907	return ret;
1908}
1909
1910static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1911{
1912	struct state *state = d_to_priv(d);
1913	struct usb_interface *intf = d->intf;
1914
1915	dev_dbg(&intf->dev, "ir_mode=%02x ir_type=%02x\n",
1916		state->ir_mode, state->ir_type);
1917
1918	/* don't activate rc if in HID mode or if not available */
1919	if (state->ir_mode == 0x05) {
1920		switch (state->ir_type) {
1921		case 0: /* NEC */
1922		default:
1923			rc->allowed_protos = RC_PROTO_BIT_NEC |
1924					RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32;
1925			break;
1926		case 1: /* RC6 */
1927			rc->allowed_protos = RC_PROTO_BIT_RC6_MCE;
1928			break;
1929		}
1930
1931		rc->query = af9035_rc_query;
1932		rc->interval = 500;
1933
1934		/* load empty to enable rc */
1935		if (!rc->map_name)
1936			rc->map_name = RC_MAP_EMPTY;
1937	}
1938
1939	return 0;
1940}
1941#else
1942	#define af9035_get_rc_config NULL
1943#endif
1944
1945static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1946		struct usb_data_stream_properties *stream)
1947{
1948	struct dvb_usb_device *d = fe_to_d(fe);
1949	struct usb_interface *intf = d->intf;
1950
1951	dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1952
1953	if (d->udev->speed == USB_SPEED_FULL)
1954		stream->u.bulk.buffersize = 5 * 188;
1955
1956	return 0;
1957}
1958
1959static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1960{
1961	struct state *state = adap_to_priv(adap);
1962
1963	return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1964}
1965
1966static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1967		int onoff)
1968{
1969	struct state *state = adap_to_priv(adap);
1970
1971	return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1972}
1973
1974static int af9035_probe(struct usb_interface *intf,
1975		const struct usb_device_id *id)
1976{
1977	struct usb_device *udev = interface_to_usbdev(intf);
1978	char manufacturer[sizeof("Afatech")];
1979
1980	memset(manufacturer, 0, sizeof(manufacturer));
1981	usb_string(udev, udev->descriptor.iManufacturer,
1982			manufacturer, sizeof(manufacturer));
1983	/*
1984	 * There is two devices having same ID but different chipset. One uses
1985	 * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1986	 * is iManufacturer string.
1987	 *
1988	 * idVendor           0x0ccd TerraTec Electronic GmbH
1989	 * idProduct          0x0099
1990	 * bcdDevice            2.00
1991	 * iManufacturer           1 Afatech
1992	 * iProduct                2 DVB-T 2
1993	 *
1994	 * idVendor           0x0ccd TerraTec Electronic GmbH
1995	 * idProduct          0x0099
1996	 * bcdDevice            2.00
1997	 * iManufacturer           1 ITE Technologies, Inc.
1998	 * iProduct                2 DVB-T TV Stick
1999	 */
2000	if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
2001			(le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
2002		if (!strcmp("Afatech", manufacturer)) {
2003			dev_dbg(&udev->dev, "rejecting device\n");
2004			return -ENODEV;
2005		}
2006	}
2007
2008	return dvb_usbv2_probe(intf, id);
2009}
2010
2011/* interface 0 is used by DVB-T receiver and
2012   interface 1 is for remote controller (HID) */
2013static const struct dvb_usb_device_properties af9035_props = {
2014	.driver_name = KBUILD_MODNAME,
2015	.owner = THIS_MODULE,
2016	.adapter_nr = adapter_nr,
2017	.size_of_priv = sizeof(struct state),
2018
2019	.generic_bulk_ctrl_endpoint = 0x02,
2020	.generic_bulk_ctrl_endpoint_response = 0x81,
2021
2022	.identify_state = af9035_identify_state,
2023	.download_firmware = af9035_download_firmware,
2024
2025	.i2c_algo = &af9035_i2c_algo,
2026	.read_config = af9035_read_config,
2027	.frontend_attach = af9035_frontend_attach,
2028	.frontend_detach = af9035_frontend_detach,
2029	.tuner_attach = af9035_tuner_attach,
2030	.tuner_detach = af9035_tuner_detach,
2031	.init = af9035_init,
2032	.get_rc_config = af9035_get_rc_config,
2033	.get_stream_config = af9035_get_stream_config,
2034
2035	.get_adapter_count = af9035_get_adapter_count,
2036	.adapter = {
2037		{
2038			.caps = DVB_USB_ADAP_HAS_PID_FILTER |
2039				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2040
2041			.pid_filter_count = 32,
2042			.pid_filter_ctrl = af9035_pid_filter_ctrl,
2043			.pid_filter = af9035_pid_filter,
2044
2045			.stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2046		}, {
2047			.caps = DVB_USB_ADAP_HAS_PID_FILTER |
2048				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2049
2050			.pid_filter_count = 32,
2051			.pid_filter_ctrl = af9035_pid_filter_ctrl,
2052			.pid_filter = af9035_pid_filter,
2053
2054			.stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2055		},
2056	},
2057};
2058
2059static const struct dvb_usb_device_properties it930x_props = {
2060	.driver_name = KBUILD_MODNAME,
2061	.owner = THIS_MODULE,
2062	.adapter_nr = adapter_nr,
2063	.size_of_priv = sizeof(struct state),
2064
2065	.generic_bulk_ctrl_endpoint = 0x02,
2066	.generic_bulk_ctrl_endpoint_response = 0x81,
2067
2068	.identify_state = af9035_identify_state,
2069	.download_firmware = af9035_download_firmware,
2070
2071	.i2c_algo = &af9035_i2c_algo,
2072	.read_config = af9035_read_config,
2073	.frontend_attach = it930x_frontend_attach,
2074	.frontend_detach = af9035_frontend_detach,
2075	.tuner_attach = it930x_tuner_attach,
2076	.tuner_detach = it930x_tuner_detach,
2077	.init = it930x_init,
2078	/*
2079	 * dvb_usbv2_remote_init() calls rc_config() only for those devices
2080	 * which have non-empty rc_map, so it's safe to enable it for every IT930x
2081	 */
2082	.get_rc_config = af9035_get_rc_config,
2083	.get_stream_config = af9035_get_stream_config,
2084
2085	.get_adapter_count = af9035_get_adapter_count,
2086	.adapter = {
2087		{
2088			.stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2089		}, {
2090			.stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2091		},
2092	},
2093};
2094
2095static const struct usb_device_id af9035_id_table[] = {
2096	/* AF9035 devices */
2097	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2098		&af9035_props, "Afatech AF9035 reference design", NULL) },
2099	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2100		&af9035_props, "Afatech AF9035 reference design", NULL) },
2101	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2102		&af9035_props, "Afatech AF9035 reference design", NULL) },
2103	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2104		&af9035_props, "Afatech AF9035 reference design", NULL) },
2105	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2106		&af9035_props, "Afatech AF9035 reference design", NULL) },
2107	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2108		&af9035_props, "TerraTec Cinergy T Stick", NULL) },
2109	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2110		&af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2111	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2112		&af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2113	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2114		&af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2115	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2116		&af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2117	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2118		&af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2119	{ DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2120		&af9035_props, "Asus U3100Mini Plus", NULL) },
2121	{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2122		&af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2123	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2124		&af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2125       { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_EVOLVEO_XTRATV_STICK,
2126	       &af9035_props, "EVOLVEO XtraTV stick", NULL) },
2127
2128	/* IT9135 devices */
2129	{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2130		&af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2131	{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2132		&af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2133	{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2134		&af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2135	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2136		&af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2137	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2138		&af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2139	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2140		&af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2141	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2142		&af9035_props, "Avermedia A835B(4835)",	RC_MAP_IT913X_V2) },
2143	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2144		&af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2145	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2146		&af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2147	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2148		&af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2149	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2150		&af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2151							RC_MAP_IT913X_V1) },
2152	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2153		&af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2154							RC_MAP_IT913X_V1) },
2155	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_T1,
2156		&af9035_props, "TerraTec T1", RC_MAP_IT913X_V1) },
2157	/* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2158	{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2159		&af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2160		NULL) },
2161	{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2162		&af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2163	{ DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2164		&af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2165	{ DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2166		&af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2167	{ DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2168		&af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2169
2170	/* IT930x devices */
2171	{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2172		&it930x_props, "ITE 9303 Generic", NULL) },
2173	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD310,
2174		&it930x_props, "AVerMedia TD310 DVB-T2", RC_MAP_AVERMEDIA_RM_KS) },
2175	{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x0100,
2176		&it930x_props, "Logilink VG0022A", NULL) },
2177	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_TC2_STICK,
2178		&it930x_props, "TerraTec Cinergy TC2 Stick", NULL) },
2179	{ }
2180};
2181MODULE_DEVICE_TABLE(usb, af9035_id_table);
2182
2183static struct usb_driver af9035_usb_driver = {
2184	.name = KBUILD_MODNAME,
2185	.id_table = af9035_id_table,
2186	.probe = af9035_probe,
2187	.disconnect = dvb_usbv2_disconnect,
2188	.suspend = dvb_usbv2_suspend,
2189	.resume = dvb_usbv2_resume,
2190	.reset_resume = dvb_usbv2_reset_resume,
2191	.no_dynamic_id = 1,
2192	.soft_unbind = 1,
2193};
2194
2195module_usb_driver(af9035_usb_driver);
2196
2197MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2198MODULE_DESCRIPTION("Afatech AF9035 driver");
2199MODULE_LICENSE("GPL");
2200MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035);
2201MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1);
2202MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2);
2203MODULE_FIRMWARE(AF9035_FIRMWARE_IT9303);