af9015.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver
   4 *
   5 * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
   6 *
   7 * Thanks to Afatech who kindly provided information.
   8 */
   9
  10#include "af9015.h"
  11
  12static int dvb_usb_af9015_remote;
  13module_param_named(remote, dvb_usb_af9015_remote, int, 0644);
  14MODULE_PARM_DESC(remote, "select remote");
  15DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  16
  17static int af9015_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
  18{
  19#define REQ_HDR_LEN 8 /* send header size */
  20#define ACK_HDR_LEN 2 /* rece header size */
  21	struct af9015_state *state = d_to_priv(d);
  22	struct usb_interface *intf = d->intf;
  23	int ret, wlen, rlen;
  24	u8 write = 1;
  25
  26	mutex_lock(&d->usb_mutex);
  27
  28	state->buf[0] = req->cmd;
  29	state->buf[1] = state->seq++;
  30	state->buf[2] = req->i2c_addr << 1;
  31	state->buf[3] = req->addr >> 8;
  32	state->buf[4] = req->addr & 0xff;
  33	state->buf[5] = req->mbox;
  34	state->buf[6] = req->addr_len;
  35	state->buf[7] = req->data_len;
  36
  37	switch (req->cmd) {
  38	case GET_CONFIG:
  39	case READ_MEMORY:
  40	case RECONNECT_USB:
  41		write = 0;
  42		break;
  43	case READ_I2C:
  44		write = 0;
  45		state->buf[2] |= 0x01; /* set I2C direction */
  46		fallthrough;
  47	case WRITE_I2C:
  48		state->buf[0] = READ_WRITE_I2C;
  49		break;
  50	case WRITE_MEMORY:
  51		if (((req->addr & 0xff00) == 0xff00) ||
  52		    ((req->addr & 0xff00) == 0xae00))
  53			state->buf[0] = WRITE_VIRTUAL_MEMORY;
  54		break;
  55	case WRITE_VIRTUAL_MEMORY:
  56	case COPY_FIRMWARE:
  57	case DOWNLOAD_FIRMWARE:
  58	case BOOT:
  59		break;
  60	default:
  61		dev_err(&intf->dev, "unknown cmd %d\n", req->cmd);
  62		ret = -EIO;
  63		goto error;
  64	}
  65
  66	/* Buffer overflow check */
  67	if ((write && (req->data_len > BUF_LEN - REQ_HDR_LEN)) ||
  68	    (!write && (req->data_len > BUF_LEN - ACK_HDR_LEN))) {
  69		dev_err(&intf->dev, "too much data, cmd %u, len %u\n",
  70			req->cmd, req->data_len);
  71		ret = -EINVAL;
  72		goto error;
  73	}
  74
  75	/*
  76	 * Write receives seq + status = 2 bytes
  77	 * Read receives seq + status + data = 2 + N bytes
  78	 */
  79	wlen = REQ_HDR_LEN;
  80	rlen = ACK_HDR_LEN;
  81	if (write) {
  82		wlen += req->data_len;
  83		memcpy(&state->buf[REQ_HDR_LEN], req->data, req->data_len);
  84	} else {
  85		rlen += req->data_len;
  86	}
  87
  88	/* no ack for these packets */
  89	if (req->cmd == DOWNLOAD_FIRMWARE || req->cmd == RECONNECT_USB)
  90		rlen = 0;
  91
  92	ret = dvb_usbv2_generic_rw_locked(d, state->buf, wlen,
  93					  state->buf, rlen);
  94	if (ret)
  95		goto error;
  96
  97	/* check status */
  98	if (rlen && state->buf[1]) {
  99		dev_err(&intf->dev, "cmd failed %u\n", state->buf[1]);
 100		ret = -EIO;
 101		goto error;
 102	}
 103
 104	/* read request, copy returned data to return buf */
 105	if (!write)
 106		memcpy(req->data, &state->buf[ACK_HDR_LEN], req->data_len);
 107error:
 108	mutex_unlock(&d->usb_mutex);
 109
 110	return ret;
 111}
 112
 113static int af9015_write_reg_i2c(struct dvb_usb_device *d, u8 addr, u16 reg,
 114				u8 val)
 115{
 116	struct af9015_state *state = d_to_priv(d);
 117	struct req_t req = {WRITE_I2C, addr, reg, 1, 1, 1, &val};
 118
 119	if (addr == state->af9013_i2c_addr[0] ||
 120	    addr == state->af9013_i2c_addr[1])
 121		req.addr_len = 3;
 122
 123	return af9015_ctrl_msg(d, &req);
 124}
 125
 126static int af9015_read_reg_i2c(struct dvb_usb_device *d, u8 addr, u16 reg,
 127			       u8 *val)
 128{
 129	struct af9015_state *state = d_to_priv(d);
 130	struct req_t req = {READ_I2C, addr, reg, 0, 1, 1, val};
 131
 132	if (addr == state->af9013_i2c_addr[0] ||
 133	    addr == state->af9013_i2c_addr[1])
 134		req.addr_len = 3;
 135
 136	return af9015_ctrl_msg(d, &req);
 137}
 138
 139static int af9015_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 140			   int num)
 141{
 142	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 143	struct af9015_state *state = d_to_priv(d);
 144	struct usb_interface *intf = d->intf;
 145	int ret;
 146	u16 addr;
 147	u8 mbox, addr_len;
 148	struct req_t req;
 149
 150	/*
 151	 * I2C multiplexing:
 152	 * There could be two tuners, both using same I2C address. Demodulator
 153	 * I2C-gate is only possibility to select correct tuner.
 154	 *
 155	 * ...........................................
 156	 * . AF9015 integrates AF9013 demodulator    .
 157	 * . ____________               ____________ .             ____________
 158	 * .|   USB IF   |             |   demod    |.            |   tuner    |
 159	 * .|------------|             |------------|.            |------------|
 160	 * .|   AF9015   |             |   AF9013   |.            |   MXL5003  |
 161	 * .|            |--+--I2C-----|-----/ -----|.----I2C-----|            |
 162	 * .|            |  |          | addr 0x1c  |.            |  addr 0x63 |
 163	 * .|____________|  |          |____________|.            |____________|
 164	 * .................|.........................
 165	 *                  |           ____________               ____________
 166	 *                  |          |   demod    |             |   tuner    |
 167	 *                  |          |------------|             |------------|
 168	 *                  |          |   AF9013   |             |   MXL5003  |
 169	 *                  +--I2C-----|-----/ -----|-----I2C-----|            |
 170	 *                             | addr 0x1d  |             |  addr 0x63 |
 171	 *                             |____________|             |____________|
 172	 */
 173
 174	if (msg[0].len == 0 || msg[0].flags & I2C_M_RD) {
 175		addr = 0x0000;
 176		mbox = 0;
 177		addr_len = 0;
 178	} else if (msg[0].len == 1) {
 179		addr = msg[0].buf[0];
 180		mbox = 0;
 181		addr_len = 1;
 182	} else if (msg[0].len == 2) {
 183		addr = msg[0].buf[0] << 8 | msg[0].buf[1] << 0;
 184		mbox = 0;
 185		addr_len = 2;
 186	} else {
 187		addr = msg[0].buf[0] << 8 | msg[0].buf[1] << 0;
 188		mbox = msg[0].buf[2];
 189		addr_len = 3;
 190	}
 191
 192	if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 193		/* i2c write */
 194		if (msg[0].len > 21) {
 195			ret = -EOPNOTSUPP;
 196			goto err;
 197		}
 198		if (msg[0].addr == state->af9013_i2c_addr[0])
 199			req.cmd = WRITE_MEMORY;
 200		else
 201			req.cmd = WRITE_I2C;
 202		req.i2c_addr = msg[0].addr;
 203		req.addr = addr;
 204		req.mbox = mbox;
 205		req.addr_len = addr_len;
 206		req.data_len = msg[0].len - addr_len;
 207		req.data = &msg[0].buf[addr_len];
 208		ret = af9015_ctrl_msg(d, &req);
 209	} else if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 210		   (msg[1].flags & I2C_M_RD)) {
 211		/* i2c write + read */
 212		if (msg[0].len > 3 || msg[1].len > 61) {
 213			ret = -EOPNOTSUPP;
 214			goto err;
 215		}
 216		if (msg[0].addr == state->af9013_i2c_addr[0])
 217			req.cmd = READ_MEMORY;
 218		else
 219			req.cmd = READ_I2C;
 220		req.i2c_addr = msg[0].addr;
 221		req.addr = addr;
 222		req.mbox = mbox;
 223		req.addr_len = addr_len;
 224		req.data_len = msg[1].len;
 225		req.data = &msg[1].buf[0];
 226		ret = af9015_ctrl_msg(d, &req);
 227	} else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 228		/* i2c read */
 229		if (msg[0].len > 61) {
 230			ret = -EOPNOTSUPP;
 231			goto err;
 232		}
 233		if (msg[0].addr == state->af9013_i2c_addr[0]) {
 234			ret = -EINVAL;
 235			goto err;
 236		}
 237		req.cmd = READ_I2C;
 238		req.i2c_addr = msg[0].addr;
 239		req.addr = addr;
 240		req.mbox = mbox;
 241		req.addr_len = addr_len;
 242		req.data_len = msg[0].len;
 243		req.data = &msg[0].buf[0];
 244		ret = af9015_ctrl_msg(d, &req);
 245	} else {
 246		ret = -EOPNOTSUPP;
 247		dev_dbg(&intf->dev, "unknown msg, num %u\n", num);
 248	}
 249	if (ret)
 250		goto err;
 251
 252	return num;
 253err:
 254	dev_dbg(&intf->dev, "failed %d\n", ret);
 255	return ret;
 256}
 257
 258static u32 af9015_i2c_func(struct i2c_adapter *adapter)
 259{
 260	return I2C_FUNC_I2C;
 261}
 262
 263static const struct i2c_algorithm af9015_i2c_algo = {
 264	.master_xfer = af9015_i2c_xfer,
 265	.functionality = af9015_i2c_func,
 266};
 267
 268static int af9015_identify_state(struct dvb_usb_device *d, const char **name)
 269{
 270	struct usb_interface *intf = d->intf;
 271	int ret;
 272	u8 reply;
 273	struct req_t req = {GET_CONFIG, 0, 0, 0, 0, 1, &reply};
 274
 275	ret = af9015_ctrl_msg(d, &req);
 276	if (ret)
 277		return ret;
 278
 279	dev_dbg(&intf->dev, "reply %02x\n", reply);
 280
 281	if (reply == 0x02)
 282		ret = WARM;
 283	else
 284		ret = COLD;
 285
 286	return ret;
 287}
 288
 289static int af9015_download_firmware(struct dvb_usb_device *d,
 290				    const struct firmware *firmware)
 291{
 292	struct af9015_state *state = d_to_priv(d);
 293	struct usb_interface *intf = d->intf;
 294	int ret, i, rem;
 295	struct req_t req = {DOWNLOAD_FIRMWARE, 0, 0, 0, 0, 0, NULL};
 296	u16 checksum;
 297
 298	dev_dbg(&intf->dev, "\n");
 299
 300	/* Calc checksum, we need it when copy firmware to slave demod */
 301	for (i = 0, checksum = 0; i < firmware->size; i++)
 302		checksum += firmware->data[i];
 303
 304	state->firmware_size = firmware->size;
 305	state->firmware_checksum = checksum;
 306
 307	#define LEN_MAX (BUF_LEN - REQ_HDR_LEN) /* Max payload size */
 308	for (rem = firmware->size; rem > 0; rem -= LEN_MAX) {
 309		req.data_len = min(LEN_MAX, rem);
 310		req.data = (u8 *)&firmware->data[firmware->size - rem];
 311		req.addr = 0x5100 + firmware->size - rem;
 312		ret = af9015_ctrl_msg(d, &req);
 313		if (ret) {
 314			dev_err(&intf->dev, "firmware download failed %d\n",
 315				ret);
 316			goto err;
 317		}
 318	}
 319
 320	req.cmd = BOOT;
 321	req.data_len = 0;
 322	ret = af9015_ctrl_msg(d, &req);
 323	if (ret) {
 324		dev_err(&intf->dev, "firmware boot failed %d\n", ret);
 325		goto err;
 326	}
 327
 328	return 0;
 329err:
 330	dev_dbg(&intf->dev, "failed %d\n", ret);
 331	return ret;
 332}
 333
 334#define AF9015_EEPROM_SIZE 256
 335/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
 336#define GOLDEN_RATIO_PRIME_32 0x9e370001UL
 337
 338/* hash (and dump) eeprom */
 339static int af9015_eeprom_hash(struct dvb_usb_device *d)
 340{
 341	struct af9015_state *state = d_to_priv(d);
 342	struct usb_interface *intf = d->intf;
 343	int ret, i;
 344	u8 buf[AF9015_EEPROM_SIZE];
 345	struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, NULL};
 346
 347	/* read eeprom */
 348	for (i = 0; i < AF9015_EEPROM_SIZE; i++) {
 349		req.addr = i;
 350		req.data = &buf[i];
 351		ret = af9015_ctrl_msg(d, &req);
 352		if (ret < 0)
 353			goto err;
 354	}
 355
 356	/* calculate checksum */
 357	for (i = 0; i < AF9015_EEPROM_SIZE / sizeof(u32); i++) {
 358		state->eeprom_sum *= GOLDEN_RATIO_PRIME_32;
 359		state->eeprom_sum += le32_to_cpu(((__le32 *)buf)[i]);
 360	}
 361
 362	for (i = 0; i < AF9015_EEPROM_SIZE; i += 16)
 363		dev_dbg(&intf->dev, "%*ph\n", 16, buf + i);
 364
 365	dev_dbg(&intf->dev, "eeprom sum %.8x\n", state->eeprom_sum);
 366	return 0;
 367err:
 368	dev_dbg(&intf->dev, "failed %d\n", ret);
 369	return ret;
 370}
 371
 372static int af9015_read_config(struct dvb_usb_device *d)
 373{
 374	struct af9015_state *state = d_to_priv(d);
 375	struct usb_interface *intf = d->intf;
 376	int ret;
 377	u8 val, i, offset = 0;
 378	struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, &val};
 379
 380	dev_dbg(&intf->dev, "\n");
 381
 382	/* IR remote controller */
 383	req.addr = AF9015_EEPROM_IR_MODE;
 384	/* first message will timeout often due to possible hw bug */
 385	for (i = 0; i < 4; i++) {
 386		ret = af9015_ctrl_msg(d, &req);
 387		if (!ret)
 388			break;
 389	}
 390	if (ret)
 391		goto error;
 392
 393	ret = af9015_eeprom_hash(d);
 394	if (ret)
 395		goto error;
 396
 397	state->ir_mode = val;
 398	dev_dbg(&intf->dev, "ir mode %02x\n", val);
 399
 400	/* TS mode - one or two receivers */
 401	req.addr = AF9015_EEPROM_TS_MODE;
 402	ret = af9015_ctrl_msg(d, &req);
 403	if (ret)
 404		goto error;
 405
 406	state->dual_mode = val;
 407	dev_dbg(&intf->dev, "ts mode %02x\n", state->dual_mode);
 408
 409	state->af9013_i2c_addr[0] = AF9015_I2C_DEMOD;
 410
 411	if (state->dual_mode) {
 412		/* read 2nd demodulator I2C address */
 413		req.addr = AF9015_EEPROM_DEMOD2_I2C;
 414		ret = af9015_ctrl_msg(d, &req);
 415		if (ret)
 416			goto error;
 417
 418		state->af9013_i2c_addr[1] = val >> 1;
 419	}
 420
 421	for (i = 0; i < state->dual_mode + 1; i++) {
 422		if (i == 1)
 423			offset = AF9015_EEPROM_OFFSET;
 424		/* xtal */
 425		req.addr = AF9015_EEPROM_XTAL_TYPE1 + offset;
 426		ret = af9015_ctrl_msg(d, &req);
 427		if (ret)
 428			goto error;
 429		switch (val) {
 430		case 0:
 431			state->af9013_pdata[i].clk = 28800000;
 432			break;
 433		case 1:
 434			state->af9013_pdata[i].clk = 20480000;
 435			break;
 436		case 2:
 437			state->af9013_pdata[i].clk = 28000000;
 438			break;
 439		case 3:
 440			state->af9013_pdata[i].clk = 25000000;
 441			break;
 442		}
 443		dev_dbg(&intf->dev, "[%d] xtal %02x, clk %u\n",
 444			i, val, state->af9013_pdata[i].clk);
 445
 446		/* IF frequency */
 447		req.addr = AF9015_EEPROM_IF1H + offset;
 448		ret = af9015_ctrl_msg(d, &req);
 449		if (ret)
 450			goto error;
 451
 452		state->af9013_pdata[i].if_frequency = val << 8;
 453
 454		req.addr = AF9015_EEPROM_IF1L + offset;
 455		ret = af9015_ctrl_msg(d, &req);
 456		if (ret)
 457			goto error;
 458
 459		state->af9013_pdata[i].if_frequency += val;
 460		state->af9013_pdata[i].if_frequency *= 1000;
 461		dev_dbg(&intf->dev, "[%d] if frequency %u\n",
 462			i, state->af9013_pdata[i].if_frequency);
 463
 464		/* MT2060 IF1 */
 465		req.addr = AF9015_EEPROM_MT2060_IF1H  + offset;
 466		ret = af9015_ctrl_msg(d, &req);
 467		if (ret)
 468			goto error;
 469		state->mt2060_if1[i] = val << 8;
 470		req.addr = AF9015_EEPROM_MT2060_IF1L + offset;
 471		ret = af9015_ctrl_msg(d, &req);
 472		if (ret)
 473			goto error;
 474		state->mt2060_if1[i] += val;
 475		dev_dbg(&intf->dev, "[%d] MT2060 IF1 %u\n",
 476			i, state->mt2060_if1[i]);
 477
 478		/* tuner */
 479		req.addr =  AF9015_EEPROM_TUNER_ID1 + offset;
 480		ret = af9015_ctrl_msg(d, &req);
 481		if (ret)
 482			goto error;
 483		switch (val) {
 484		case AF9013_TUNER_ENV77H11D5:
 485		case AF9013_TUNER_MT2060:
 486		case AF9013_TUNER_QT1010:
 487		case AF9013_TUNER_UNKNOWN:
 488		case AF9013_TUNER_MT2060_2:
 489		case AF9013_TUNER_TDA18271:
 490		case AF9013_TUNER_QT1010A:
 491		case AF9013_TUNER_TDA18218:
 492			state->af9013_pdata[i].spec_inv = 1;
 493			break;
 494		case AF9013_TUNER_MXL5003D:
 495		case AF9013_TUNER_MXL5005D:
 496		case AF9013_TUNER_MXL5005R:
 497		case AF9013_TUNER_MXL5007T:
 498			state->af9013_pdata[i].spec_inv = 0;
 499			break;
 500		case AF9013_TUNER_MC44S803:
 501			state->af9013_pdata[i].gpio[1] = AF9013_GPIO_LO;
 502			state->af9013_pdata[i].spec_inv = 1;
 503			break;
 504		default:
 505			dev_err(&intf->dev,
 506				"tuner id %02x not supported, please report!\n",
 507				val);
 508			return -ENODEV;
 509		}
 510
 511		state->af9013_pdata[i].tuner = val;
 512		dev_dbg(&intf->dev, "[%d] tuner id %02x\n", i, val);
 513	}
 514
 515error:
 516	if (ret)
 517		dev_err(&intf->dev, "eeprom read failed %d\n", ret);
 518
 519	/*
 520	 * AverMedia AVerTV Volar Black HD (A850) device have bad EEPROM
 521	 * content :-( Override some wrong values here. Ditto for the
 522	 * AVerTV Red HD+ (A850T) device.
 523	 */
 524	if (le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA &&
 525	    ((le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_AVERMEDIA_A850) ||
 526	    (le16_to_cpu(d->udev->descriptor.idProduct) == USB_PID_AVERMEDIA_A850T))) {
 527		dev_dbg(&intf->dev, "AverMedia A850: overriding config\n");
 528		/* disable dual mode */
 529		state->dual_mode = 0;
 530
 531		/* set correct IF */
 532		state->af9013_pdata[0].if_frequency = 4570000;
 533	}
 534
 535	return ret;
 536}
 537
 538static int af9015_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
 539				    struct usb_data_stream_properties *stream)
 540{
 541	struct dvb_usb_device *d = fe_to_d(fe);
 542	struct usb_interface *intf = d->intf;
 543
 544	dev_dbg(&intf->dev, "adap %u\n", fe_to_adap(fe)->id);
 545
 546	if (d->udev->speed == USB_SPEED_FULL)
 547		stream->u.bulk.buffersize = 5 * 188;
 548
 549	return 0;
 550}
 551
 552static int af9015_streaming_ctrl(struct dvb_frontend *fe, int onoff)
 553{
 554	struct dvb_usb_device *d = fe_to_d(fe);
 555	struct af9015_state *state = d_to_priv(d);
 556	struct usb_interface *intf = d->intf;
 557	int ret;
 558	unsigned int utmp1, utmp2, reg1, reg2;
 559	u8 buf[2];
 560	const unsigned int adap_id = fe_to_adap(fe)->id;
 561
 562	dev_dbg(&intf->dev, "adap id %d, onoff %d\n", adap_id, onoff);
 563
 564	if (!state->usb_ts_if_configured[adap_id]) {
 565		dev_dbg(&intf->dev, "set usb and ts interface\n");
 566
 567		/* USB IF stream settings */
 568		utmp1 = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
 569		utmp2 = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
 570
 571		buf[0] = (utmp1 >> 0) & 0xff;
 572		buf[1] = (utmp1 >> 8) & 0xff;
 573		if (adap_id == 0) {
 574			/* 1st USB IF (EP4) stream settings */
 575			reg1 = 0xdd88;
 576			reg2 = 0xdd0c;
 577		} else {
 578			/* 2nd USB IF (EP5) stream settings */
 579			reg1 = 0xdd8a;
 580			reg2 = 0xdd0d;
 581		}
 582		ret = regmap_bulk_write(state->regmap, reg1, buf, 2);
 583		if (ret)
 584			goto err;
 585		ret = regmap_write(state->regmap, reg2, utmp2);
 586		if (ret)
 587			goto err;
 588
 589		/* TS IF settings */
 590		if (state->dual_mode) {
 591			utmp1 = 0x01;
 592			utmp2 = 0x10;
 593		} else {
 594			utmp1 = 0x00;
 595			utmp2 = 0x00;
 596		}
 597		ret = regmap_update_bits(state->regmap, 0xd50b, 0x01, utmp1);
 598		if (ret)
 599			goto err;
 600		ret = regmap_update_bits(state->regmap, 0xd520, 0x10, utmp2);
 601		if (ret)
 602			goto err;
 603
 604		state->usb_ts_if_configured[adap_id] = true;
 605	}
 606
 607	if (adap_id == 0 && onoff) {
 608		/* Adapter 0 stream on. EP4: clear NAK, enable, clear reset */
 609		ret = regmap_update_bits(state->regmap, 0xdd13, 0x20, 0x00);
 610		if (ret)
 611			goto err;
 612		ret = regmap_update_bits(state->regmap, 0xdd11, 0x20, 0x20);
 613		if (ret)
 614			goto err;
 615		ret = regmap_update_bits(state->regmap, 0xd507, 0x04, 0x00);
 616		if (ret)
 617			goto err;
 618	} else if (adap_id == 1 && onoff) {
 619		/* Adapter 1 stream on. EP5: clear NAK, enable, clear reset */
 620		ret = regmap_update_bits(state->regmap, 0xdd13, 0x40, 0x00);
 621		if (ret)
 622			goto err;
 623		ret = regmap_update_bits(state->regmap, 0xdd11, 0x40, 0x40);
 624		if (ret)
 625			goto err;
 626		ret = regmap_update_bits(state->regmap, 0xd50b, 0x02, 0x00);
 627		if (ret)
 628			goto err;
 629	} else if (adap_id == 0 && !onoff) {
 630		/* Adapter 0 stream off. EP4: set reset, disable, set NAK */
 631		ret = regmap_update_bits(state->regmap, 0xd507, 0x04, 0x04);
 632		if (ret)
 633			goto err;
 634		ret = regmap_update_bits(state->regmap, 0xdd11, 0x20, 0x00);
 635		if (ret)
 636			goto err;
 637		ret = regmap_update_bits(state->regmap, 0xdd13, 0x20, 0x20);
 638		if (ret)
 639			goto err;
 640	} else if (adap_id == 1 && !onoff) {
 641		/* Adapter 1 stream off. EP5: set reset, disable, set NAK */
 642		ret = regmap_update_bits(state->regmap, 0xd50b, 0x02, 0x02);
 643		if (ret)
 644			goto err;
 645		ret = regmap_update_bits(state->regmap, 0xdd11, 0x40, 0x00);
 646		if (ret)
 647			goto err;
 648		ret = regmap_update_bits(state->regmap, 0xdd13, 0x40, 0x40);
 649		if (ret)
 650			goto err;
 651	}
 652
 653	return 0;
 654err:
 655	dev_dbg(&intf->dev, "failed %d\n", ret);
 656	return ret;
 657}
 658
 659static int af9015_get_adapter_count(struct dvb_usb_device *d)
 660{
 661	struct af9015_state *state = d_to_priv(d);
 662
 663	return state->dual_mode + 1;
 664}
 665
 666/* override demod callbacks for resource locking */
 667static int af9015_af9013_set_frontend(struct dvb_frontend *fe)
 668{
 669	int ret;
 670	struct af9015_state *state = fe_to_priv(fe);
 671
 672	if (mutex_lock_interruptible(&state->fe_mutex))
 673		return -EAGAIN;
 674
 675	ret = state->set_frontend[fe_to_adap(fe)->id](fe);
 676
 677	mutex_unlock(&state->fe_mutex);
 678
 679	return ret;
 680}
 681
 682/* override demod callbacks for resource locking */
 683static int af9015_af9013_read_status(struct dvb_frontend *fe,
 684				     enum fe_status *status)
 685{
 686	int ret;
 687	struct af9015_state *state = fe_to_priv(fe);
 688
 689	if (mutex_lock_interruptible(&state->fe_mutex))
 690		return -EAGAIN;
 691
 692	ret = state->read_status[fe_to_adap(fe)->id](fe, status);
 693
 694	mutex_unlock(&state->fe_mutex);
 695
 696	return ret;
 697}
 698
 699/* override demod callbacks for resource locking */
 700static int af9015_af9013_init(struct dvb_frontend *fe)
 701{
 702	int ret;
 703	struct af9015_state *state = fe_to_priv(fe);
 704
 705	if (mutex_lock_interruptible(&state->fe_mutex))
 706		return -EAGAIN;
 707
 708	ret = state->init[fe_to_adap(fe)->id](fe);
 709
 710	mutex_unlock(&state->fe_mutex);
 711
 712	return ret;
 713}
 714
 715/* override demod callbacks for resource locking */
 716static int af9015_af9013_sleep(struct dvb_frontend *fe)
 717{
 718	int ret;
 719	struct af9015_state *state = fe_to_priv(fe);
 720
 721	if (mutex_lock_interruptible(&state->fe_mutex))
 722		return -EAGAIN;
 723
 724	ret = state->sleep[fe_to_adap(fe)->id](fe);
 725
 726	mutex_unlock(&state->fe_mutex);
 727
 728	return ret;
 729}
 730
 731/* override tuner callbacks for resource locking */
 732static int af9015_tuner_init(struct dvb_frontend *fe)
 733{
 734	int ret;
 735	struct af9015_state *state = fe_to_priv(fe);
 736
 737	if (mutex_lock_interruptible(&state->fe_mutex))
 738		return -EAGAIN;
 739
 740	ret = state->tuner_init[fe_to_adap(fe)->id](fe);
 741
 742	mutex_unlock(&state->fe_mutex);
 743
 744	return ret;
 745}
 746
 747/* override tuner callbacks for resource locking */
 748static int af9015_tuner_sleep(struct dvb_frontend *fe)
 749{
 750	int ret;
 751	struct af9015_state *state = fe_to_priv(fe);
 752
 753	if (mutex_lock_interruptible(&state->fe_mutex))
 754		return -EAGAIN;
 755
 756	ret = state->tuner_sleep[fe_to_adap(fe)->id](fe);
 757
 758	mutex_unlock(&state->fe_mutex);
 759
 760	return ret;
 761}
 762
 763static int af9015_copy_firmware(struct dvb_usb_device *d)
 764{
 765	struct af9015_state *state = d_to_priv(d);
 766	struct usb_interface *intf = d->intf;
 767	int ret;
 768	unsigned long timeout;
 769	u8 val, firmware_info[4];
 770	struct req_t req = {COPY_FIRMWARE, 0, 0x5100, 0, 0, 4, firmware_info};
 771
 772	dev_dbg(&intf->dev, "\n");
 773
 774	firmware_info[0] = (state->firmware_size >> 8) & 0xff;
 775	firmware_info[1] = (state->firmware_size >> 0) & 0xff;
 776	firmware_info[2] = (state->firmware_checksum >> 8) & 0xff;
 777	firmware_info[3] = (state->firmware_checksum >> 0) & 0xff;
 778
 779	/* Check whether firmware is already running */
 780	ret = af9015_read_reg_i2c(d, state->af9013_i2c_addr[1], 0x98be, &val);
 781	if (ret)
 782		goto err;
 783
 784	dev_dbg(&intf->dev, "firmware status %02x\n", val);
 785
 786	if (val == 0x0c)
 787		return 0;
 788
 789	/* Set i2c clock to 625kHz to speed up firmware copy */
 790	ret = regmap_write(state->regmap, 0xd416, 0x04);
 791	if (ret)
 792		goto err;
 793
 794	/* Copy firmware from master demod to slave demod */
 795	ret = af9015_ctrl_msg(d, &req);
 796	if (ret) {
 797		dev_err(&intf->dev, "firmware copy cmd failed %d\n", ret);
 798		goto err;
 799	}
 800
 801	/* Set i2c clock to 125kHz */
 802	ret = regmap_write(state->regmap, 0xd416, 0x14);
 803	if (ret)
 804		goto err;
 805
 806	/* Boot firmware */
 807	ret = af9015_write_reg_i2c(d, state->af9013_i2c_addr[1], 0xe205, 0x01);
 808	if (ret)
 809		goto err;
 810
 811	/* Poll firmware ready */
 812	for (val = 0x00, timeout = jiffies + msecs_to_jiffies(1000);
 813	     !time_after(jiffies, timeout) && val != 0x0c && val != 0x04;) {
 814		msleep(20);
 815
 816		/* Check firmware status. 0c=OK, 04=fail */
 817		ret = af9015_read_reg_i2c(d, state->af9013_i2c_addr[1],
 818					  0x98be, &val);
 819		if (ret)
 820			goto err;
 821
 822		dev_dbg(&intf->dev, "firmware status %02x\n", val);
 823	}
 824
 825	dev_dbg(&intf->dev, "firmware boot took %u ms\n",
 826		jiffies_to_msecs(jiffies) - (jiffies_to_msecs(timeout) - 1000));
 827
 828	if (val == 0x04) {
 829		ret = -ENODEV;
 830		dev_err(&intf->dev, "firmware did not run\n");
 831		goto err;
 832	} else if (val != 0x0c) {
 833		ret = -ETIMEDOUT;
 834		dev_err(&intf->dev, "firmware boot timeout\n");
 835		goto err;
 836	}
 837
 838	return 0;
 839err:
 840	dev_dbg(&intf->dev, "failed %d\n", ret);
 841	return ret;
 842}
 843
 844static int af9015_af9013_frontend_attach(struct dvb_usb_adapter *adap)
 845{
 846	struct af9015_state *state = adap_to_priv(adap);
 847	struct dvb_usb_device *d = adap_to_d(adap);
 848	struct usb_interface *intf = d->intf;
 849	struct i2c_client *client;
 850	int ret;
 851
 852	dev_dbg(&intf->dev, "adap id %u\n", adap->id);
 853
 854	if (adap->id == 0) {
 855		state->af9013_pdata[0].ts_mode = AF9013_TS_MODE_USB;
 856		memcpy(state->af9013_pdata[0].api_version, "\x0\x1\x9\x0", 4);
 857		state->af9013_pdata[0].gpio[0] = AF9013_GPIO_HI;
 858		state->af9013_pdata[0].gpio[3] = AF9013_GPIO_TUNER_ON;
 859	} else if (adap->id == 1) {
 860		state->af9013_pdata[1].ts_mode = AF9013_TS_MODE_SERIAL;
 861		state->af9013_pdata[1].ts_output_pin = 7;
 862		memcpy(state->af9013_pdata[1].api_version, "\x0\x1\x9\x0", 4);
 863		state->af9013_pdata[1].gpio[0] = AF9013_GPIO_TUNER_ON;
 864		state->af9013_pdata[1].gpio[1] = AF9013_GPIO_LO;
 865
 866		/* copy firmware to 2nd demodulator */
 867		if (state->dual_mode) {
 868			/* Wait 2nd demodulator ready */
 869			msleep(100);
 870
 871			ret = af9015_copy_firmware(adap_to_d(adap));
 872			if (ret) {
 873				dev_err(&intf->dev,
 874					"firmware copy to 2nd frontend failed, will disable it\n");
 875				state->dual_mode = 0;
 876				goto err;
 877			}
 878		} else {
 879			ret = -ENODEV;
 880			goto err;
 881		}
 882	}
 883
 884	/* Add I2C demod */
 885	client = dvb_module_probe("af9013", NULL, &d->i2c_adap,
 886				  state->af9013_i2c_addr[adap->id],
 887				  &state->af9013_pdata[adap->id]);
 888	if (!client) {
 889		ret = -ENODEV;
 890		goto err;
 891	}
 892	adap->fe[0] = state->af9013_pdata[adap->id].get_dvb_frontend(client);
 893	state->demod_i2c_client[adap->id] = client;
 894
 895	/*
 896	 * AF9015 firmware does not like if it gets interrupted by I2C adapter
 897	 * request on some critical phases. During normal operation I2C adapter
 898	 * is used only 2nd demodulator and tuner on dual tuner devices.
 899	 * Override demodulator callbacks and use mutex for limit access to
 900	 * those "critical" paths to keep AF9015 happy.
 901	 */
 902	if (adap->fe[0]) {
 903		state->set_frontend[adap->id] = adap->fe[0]->ops.set_frontend;
 904		adap->fe[0]->ops.set_frontend = af9015_af9013_set_frontend;
 905		state->read_status[adap->id] = adap->fe[0]->ops.read_status;
 906		adap->fe[0]->ops.read_status = af9015_af9013_read_status;
 907		state->init[adap->id] = adap->fe[0]->ops.init;
 908		adap->fe[0]->ops.init = af9015_af9013_init;
 909		state->sleep[adap->id] = adap->fe[0]->ops.sleep;
 910		adap->fe[0]->ops.sleep = af9015_af9013_sleep;
 911	}
 912
 913	return 0;
 914err:
 915	dev_dbg(&intf->dev, "failed %d\n", ret);
 916	return ret;
 917}
 918
 919static int af9015_frontend_detach(struct dvb_usb_adapter *adap)
 920{
 921	struct af9015_state *state = adap_to_priv(adap);
 922	struct dvb_usb_device *d = adap_to_d(adap);
 923	struct usb_interface *intf = d->intf;
 924	struct i2c_client *client;
 925
 926	dev_dbg(&intf->dev, "adap id %u\n", adap->id);
 927
 928	/* Remove I2C demod */
 929	client = state->demod_i2c_client[adap->id];
 930	dvb_module_release(client);
 931
 932	return 0;
 933}
 934
 935static struct mt2060_config af9015_mt2060_config = {
 936	.i2c_address = 0x60,
 937	.clock_out = 0,
 938};
 939
 940static struct qt1010_config af9015_qt1010_config = {
 941	.i2c_address = 0x62,
 942};
 943
 944static struct tda18271_config af9015_tda18271_config = {
 945	.gate = TDA18271_GATE_DIGITAL,
 946	.small_i2c = TDA18271_16_BYTE_CHUNK_INIT,
 947};
 948
 949static struct mxl5005s_config af9015_mxl5003_config = {
 950	.i2c_address     = 0x63,
 951	.if_freq         = IF_FREQ_4570000HZ,
 952	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 953	.agc_mode        = MXL_SINGLE_AGC,
 954	.tracking_filter = MXL_TF_DEFAULT,
 955	.rssi_enable     = MXL_RSSI_ENABLE,
 956	.cap_select      = MXL_CAP_SEL_ENABLE,
 957	.div_out         = MXL_DIV_OUT_4,
 958	.clock_out       = MXL_CLOCK_OUT_DISABLE,
 959	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 960	.top		 = MXL5005S_TOP_25P2,
 961	.mod_mode        = MXL_DIGITAL_MODE,
 962	.if_mode         = MXL_ZERO_IF,
 963	.AgcMasterByte   = 0x00,
 964};
 965
 966static struct mxl5005s_config af9015_mxl5005_config = {
 967	.i2c_address     = 0x63,
 968	.if_freq         = IF_FREQ_4570000HZ,
 969	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 970	.agc_mode        = MXL_SINGLE_AGC,
 971	.tracking_filter = MXL_TF_OFF,
 972	.rssi_enable     = MXL_RSSI_ENABLE,
 973	.cap_select      = MXL_CAP_SEL_ENABLE,
 974	.div_out         = MXL_DIV_OUT_4,
 975	.clock_out       = MXL_CLOCK_OUT_DISABLE,
 976	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 977	.top		 = MXL5005S_TOP_25P2,
 978	.mod_mode        = MXL_DIGITAL_MODE,
 979	.if_mode         = MXL_ZERO_IF,
 980	.AgcMasterByte   = 0x00,
 981};
 982
 983static struct mc44s803_config af9015_mc44s803_config = {
 984	.i2c_address = 0x60,
 985	.dig_out = 1,
 986};
 987
 988static struct tda18218_config af9015_tda18218_config = {
 989	.i2c_address = 0x60,
 990	.i2c_wr_max = 21, /* max wr bytes AF9015 I2C adap can handle at once */
 991};
 992
 993static struct mxl5007t_config af9015_mxl5007t_config = {
 994	.xtal_freq_hz = MxL_XTAL_24_MHZ,
 995	.if_freq_hz = MxL_IF_4_57_MHZ,
 996};
 997
 998static int af9015_tuner_attach(struct dvb_usb_adapter *adap)
 999{
1000	struct dvb_usb_device *d = adap_to_d(adap);
1001	struct af9015_state *state = d_to_priv(d);
1002	struct usb_interface *intf = d->intf;
1003	struct i2c_client *client;
1004	struct i2c_adapter *adapter;
1005	int ret;
1006
1007	dev_dbg(&intf->dev, "adap id %u\n", adap->id);
1008
1009	client = state->demod_i2c_client[adap->id];
1010	adapter = state->af9013_pdata[adap->id].get_i2c_adapter(client);
1011
1012	switch (state->af9013_pdata[adap->id].tuner) {
1013	case AF9013_TUNER_MT2060:
1014	case AF9013_TUNER_MT2060_2:
1015		ret = dvb_attach(mt2060_attach, adap->fe[0], adapter,
1016				 &af9015_mt2060_config,
1017				 state->mt2060_if1[adap->id]) == NULL ? -ENODEV : 0;
1018		break;
1019	case AF9013_TUNER_QT1010:
1020	case AF9013_TUNER_QT1010A:
1021		ret = dvb_attach(qt1010_attach, adap->fe[0], adapter,
1022				 &af9015_qt1010_config) == NULL ? -ENODEV : 0;
1023		break;
1024	case AF9013_TUNER_TDA18271:
1025		ret = dvb_attach(tda18271_attach, adap->fe[0], 0x60, adapter,
1026				 &af9015_tda18271_config) == NULL ? -ENODEV : 0;
1027		break;
1028	case AF9013_TUNER_TDA18218:
1029		ret = dvb_attach(tda18218_attach, adap->fe[0], adapter,
1030				 &af9015_tda18218_config) == NULL ? -ENODEV : 0;
1031		break;
1032	case AF9013_TUNER_MXL5003D:
1033		ret = dvb_attach(mxl5005s_attach, adap->fe[0], adapter,
1034				 &af9015_mxl5003_config) == NULL ? -ENODEV : 0;
1035		break;
1036	case AF9013_TUNER_MXL5005D:
1037	case AF9013_TUNER_MXL5005R:
1038		ret = dvb_attach(mxl5005s_attach, adap->fe[0], adapter,
1039				 &af9015_mxl5005_config) == NULL ? -ENODEV : 0;
1040		break;
1041	case AF9013_TUNER_ENV77H11D5:
1042		ret = dvb_attach(dvb_pll_attach, adap->fe[0], 0x60, adapter,
1043				 DVB_PLL_TDA665X) == NULL ? -ENODEV : 0;
1044		break;
1045	case AF9013_TUNER_MC44S803:
1046		ret = dvb_attach(mc44s803_attach, adap->fe[0], adapter,
1047				 &af9015_mc44s803_config) == NULL ? -ENODEV : 0;
1048		break;
1049	case AF9013_TUNER_MXL5007T:
1050		ret = dvb_attach(mxl5007t_attach, adap->fe[0], adapter,
1051				 0x60, &af9015_mxl5007t_config) == NULL ? -ENODEV : 0;
1052		break;
1053	case AF9013_TUNER_UNKNOWN:
1054	default:
1055		dev_err(&intf->dev, "unknown tuner, tuner id %02x\n",
1056			state->af9013_pdata[adap->id].tuner);
1057		ret = -ENODEV;
1058	}
1059
1060	if (adap->fe[0]->ops.tuner_ops.init) {
1061		state->tuner_init[adap->id] =
1062			adap->fe[0]->ops.tuner_ops.init;
1063		adap->fe[0]->ops.tuner_ops.init = af9015_tuner_init;
1064	}
1065
1066	if (adap->fe[0]->ops.tuner_ops.sleep) {
1067		state->tuner_sleep[adap->id] =
1068			adap->fe[0]->ops.tuner_ops.sleep;
1069		adap->fe[0]->ops.tuner_ops.sleep = af9015_tuner_sleep;
1070	}
1071
1072	return ret;
1073}
1074
1075static int af9015_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1076{
1077	struct af9015_state *state = adap_to_priv(adap);
1078	struct af9013_platform_data *pdata = &state->af9013_pdata[adap->id];
1079	int ret;
1080
1081	mutex_lock(&state->fe_mutex);
1082	ret = pdata->pid_filter_ctrl(adap->fe[0], onoff);
1083	mutex_unlock(&state->fe_mutex);
1084
1085	return ret;
1086}
1087
1088static int af9015_pid_filter(struct dvb_usb_adapter *adap, int index,
1089			     u16 pid, int onoff)
1090{
1091	struct af9015_state *state = adap_to_priv(adap);
1092	struct af9013_platform_data *pdata = &state->af9013_pdata[adap->id];
1093	int ret;
1094
1095	mutex_lock(&state->fe_mutex);
1096	ret = pdata->pid_filter(adap->fe[0], index, pid, onoff);
1097	mutex_unlock(&state->fe_mutex);
1098
1099	return ret;
1100}
1101
1102static int af9015_init(struct dvb_usb_device *d)
1103{
1104	struct af9015_state *state = d_to_priv(d);
1105	struct usb_interface *intf = d->intf;
1106	int ret;
1107
1108	dev_dbg(&intf->dev, "\n");
1109
1110	mutex_init(&state->fe_mutex);
1111
1112	/* init RC canary */
1113	ret = regmap_write(state->regmap, 0x98e9, 0xff);
1114	if (ret)
1115		goto error;
1116
1117error:
1118	return ret;
1119}
1120
1121#if IS_ENABLED(CONFIG_RC_CORE)
1122struct af9015_rc_setup {
1123	unsigned int id;
1124	char *rc_codes;
1125};
1126
1127static char *af9015_rc_setup_match(unsigned int id,
1128				   const struct af9015_rc_setup *table)
1129{
1130	for (; table->rc_codes; table++)
1131		if (table->id == id)
1132			return table->rc_codes;
1133	return NULL;
1134}
1135
1136static const struct af9015_rc_setup af9015_rc_setup_modparam[] = {
1137	{ AF9015_REMOTE_A_LINK_DTU_M, RC_MAP_ALINK_DTU_M },
1138	{ AF9015_REMOTE_MSI_DIGIVOX_MINI_II_V3, RC_MAP_MSI_DIGIVOX_II },
1139	{ AF9015_REMOTE_MYGICTV_U718, RC_MAP_TOTAL_MEDIA_IN_HAND },
1140	{ AF9015_REMOTE_DIGITTRADE_DVB_T, RC_MAP_DIGITTRADE },
1141	{ AF9015_REMOTE_AVERMEDIA_KS, RC_MAP_AVERMEDIA_RM_KS },
1142	{ }
1143};
1144
1145static const struct af9015_rc_setup af9015_rc_setup_hashes[] = {
1146	{ 0xb8feb708, RC_MAP_MSI_DIGIVOX_II },
1147	{ 0xa3703d00, RC_MAP_ALINK_DTU_M },
1148	{ 0x9b7dc64e, RC_MAP_TOTAL_MEDIA_IN_HAND }, /* MYGICTV U718 */
1149	{ 0x5d49e3db, RC_MAP_DIGITTRADE }, /* LC-Power LC-USB-DVBT */
1150	{ }
1151};
1152
1153static int af9015_rc_query(struct dvb_usb_device *d)
1154{
1155	struct af9015_state *state = d_to_priv(d);
1156	struct usb_interface *intf = d->intf;
1157	int ret;
1158	u8 buf[17];
1159
1160	/* read registers needed to detect remote controller code */
1161	ret = regmap_bulk_read(state->regmap, 0x98d9, buf, sizeof(buf));
1162	if (ret)
1163		goto error;
1164
1165	/* If any of these are non-zero, assume invalid data */
1166	if (buf[1] || buf[2] || buf[3]) {
1167		dev_dbg(&intf->dev, "invalid data\n");
1168		return 0;
1169	}
1170
1171	/* Check for repeat of previous code */
1172	if ((state->rc_repeat != buf[6] || buf[0]) &&
1173	    !memcmp(&buf[12], state->rc_last, 4)) {
1174		dev_dbg(&intf->dev, "key repeated\n");
1175		rc_repeat(d->rc_dev);
1176		state->rc_repeat = buf[6];
1177		return 0;
1178	}
1179
1180	/* Only process key if canary killed */
1181	if (buf[16] != 0xff && buf[0] != 0x01) {
1182		enum rc_proto proto;
1183
1184		dev_dbg(&intf->dev, "key pressed %*ph\n", 4, buf + 12);
1185
1186		/* Reset the canary */
1187		ret = regmap_write(state->regmap, 0x98e9, 0xff);
1188		if (ret)
1189			goto error;
1190
1191		/* Remember this key */
1192		memcpy(state->rc_last, &buf[12], 4);
1193		if (buf[14] == (u8)~buf[15]) {
1194			if (buf[12] == (u8)~buf[13]) {
1195				/* NEC */
1196				state->rc_keycode = RC_SCANCODE_NEC(buf[12],
1197								    buf[14]);
1198				proto = RC_PROTO_NEC;
1199			} else {
1200				/* NEC extended*/
1201				state->rc_keycode = RC_SCANCODE_NECX(buf[12] << 8 |
1202								     buf[13],
1203								     buf[14]);
1204				proto = RC_PROTO_NECX;
1205			}
1206		} else {
1207			/* 32 bit NEC */
1208			state->rc_keycode = RC_SCANCODE_NEC32(buf[12] << 24 |
1209							      buf[13] << 16 |
1210							      buf[14] << 8  |
1211							      buf[15]);
1212			proto = RC_PROTO_NEC32;
1213		}
1214		rc_keydown(d->rc_dev, proto, state->rc_keycode, 0);
1215	} else {
1216		dev_dbg(&intf->dev, "no key press\n");
1217		/* Invalidate last keypress */
1218		/* Not really needed, but helps with debug */
1219		state->rc_last[2] = state->rc_last[3];
1220	}
1221
1222	state->rc_repeat = buf[6];
1223	state->rc_failed = false;
1224
1225error:
1226	if (ret) {
1227		dev_warn(&intf->dev, "rc query failed %d\n", ret);
1228
1229		/* allow random errors as dvb-usb will stop polling on error */
1230		if (!state->rc_failed)
1231			ret = 0;
1232
1233		state->rc_failed = true;
1234	}
1235
1236	return ret;
1237}
1238
1239static int af9015_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1240{
1241	struct af9015_state *state = d_to_priv(d);
1242	u16 vid = le16_to_cpu(d->udev->descriptor.idVendor);
1243
1244	if (state->ir_mode == AF9015_IR_MODE_DISABLED)
1245		return 0;
1246
1247	/* try to load remote based module param */
1248	if (!rc->map_name)
1249		rc->map_name = af9015_rc_setup_match(dvb_usb_af9015_remote,
1250						     af9015_rc_setup_modparam);
1251
1252	/* try to load remote based eeprom hash */
1253	if (!rc->map_name)
1254		rc->map_name = af9015_rc_setup_match(state->eeprom_sum,
1255						     af9015_rc_setup_hashes);
1256
1257	/* try to load remote based USB iManufacturer string */
1258	if (!rc->map_name && vid == USB_VID_AFATECH) {
1259		/*
1260		 * Check USB manufacturer and product strings and try
1261		 * to determine correct remote in case of chip vendor
1262		 * reference IDs are used.
1263		 * DO NOT ADD ANYTHING NEW HERE. Use hashes instead.
1264		 */
1265		char manufacturer[10];
1266
1267		memset(manufacturer, 0, sizeof(manufacturer));
1268		usb_string(d->udev, d->udev->descriptor.iManufacturer,
1269			   manufacturer, sizeof(manufacturer));
1270		if (!strcmp("MSI", manufacturer)) {
1271			/*
1272			 * iManufacturer 1 MSI
1273			 * iProduct      2 MSI K-VOX
1274			 */
1275			rc->map_name = af9015_rc_setup_match(AF9015_REMOTE_MSI_DIGIVOX_MINI_II_V3,
1276							     af9015_rc_setup_modparam);
1277		}
1278	}
1279
1280	/* load empty to enable rc */
1281	if (!rc->map_name)
1282		rc->map_name = RC_MAP_EMPTY;
1283
1284	rc->allowed_protos = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
1285						RC_PROTO_BIT_NEC32;
1286	rc->query = af9015_rc_query;
1287	rc->interval = 500;
1288
1289	return 0;
1290}
1291#else
1292	#define af9015_get_rc_config NULL
1293#endif
1294
1295static int af9015_regmap_write(void *context, const void *data, size_t count)
1296{
1297	struct dvb_usb_device *d = context;
1298	struct usb_interface *intf = d->intf;
1299	int ret;
1300	u16 reg = ((u8 *)data)[0] << 8 | ((u8 *)data)[1] << 0;
1301	u8 *val = &((u8 *)data)[2];
1302	const unsigned int len = count - 2;
1303	struct req_t req = {WRITE_MEMORY, 0, reg, 0, 0, len, val};
1304
1305	ret = af9015_ctrl_msg(d, &req);
1306	if (ret)
1307		goto err;
1308
1309	return 0;
1310err:
1311	dev_dbg(&intf->dev, "failed %d\n", ret);
1312	return ret;
1313}
1314
1315static int af9015_regmap_read(void *context, const void *reg_buf,
1316			      size_t reg_size, void *val_buf, size_t val_size)
1317{
1318	struct dvb_usb_device *d = context;
1319	struct usb_interface *intf = d->intf;
1320	int ret;
1321	u16 reg = ((u8 *)reg_buf)[0] << 8 | ((u8 *)reg_buf)[1] << 0;
1322	u8 *val = &((u8 *)val_buf)[0];
1323	const unsigned int len = val_size;
1324	struct req_t req = {READ_MEMORY, 0, reg, 0, 0, len, val};
1325
1326	ret = af9015_ctrl_msg(d, &req);
1327	if (ret)
1328		goto err;
1329
1330	return 0;
1331err:
1332	dev_dbg(&intf->dev, "failed %d\n", ret);
1333	return ret;
1334}
1335
1336static int af9015_probe(struct dvb_usb_device *d)
1337{
1338	struct af9015_state *state = d_to_priv(d);
1339	struct usb_interface *intf = d->intf;
1340	struct usb_device *udev = interface_to_usbdev(intf);
1341	int ret;
1342	char manufacturer[sizeof("ITE Technologies, Inc.")];
1343	static const struct regmap_config regmap_config = {
1344		.reg_bits    =  16,
1345		.val_bits    =  8,
1346	};
1347	static const struct regmap_bus regmap_bus = {
1348		.read = af9015_regmap_read,
1349		.write = af9015_regmap_write,
1350	};
1351
1352	dev_dbg(&intf->dev, "\n");
1353
1354	memset(manufacturer, 0, sizeof(manufacturer));
1355	usb_string(udev, udev->descriptor.iManufacturer,
1356		   manufacturer, sizeof(manufacturer));
1357	/*
1358	 * There is two devices having same ID but different chipset. One uses
1359	 * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1360	 * is iManufacturer string.
1361	 *
1362	 * idVendor           0x0ccd TerraTec Electronic GmbH
1363	 * idProduct          0x0099
1364	 * bcdDevice            2.00
1365	 * iManufacturer           1 Afatech
1366	 * iProduct                2 DVB-T 2
1367	 *
1368	 * idVendor           0x0ccd TerraTec Electronic GmbH
1369	 * idProduct          0x0099
1370	 * bcdDevice            2.00
1371	 * iManufacturer           1 ITE Technologies, Inc.
1372	 * iProduct                2 DVB-T TV Stick
1373	 */
1374	if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1375	    (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1376		if (!strcmp("ITE Technologies, Inc.", manufacturer)) {
1377			ret = -ENODEV;
1378			dev_dbg(&intf->dev, "rejecting device\n");
1379			goto err;
1380		}
1381	}
1382
1383	state->regmap = regmap_init(&intf->dev, &regmap_bus, d, &regmap_config);
1384	if (IS_ERR(state->regmap)) {
1385		ret = PTR_ERR(state->regmap);
1386		goto err;
1387	}
1388
1389	return 0;
1390err:
1391	dev_dbg(&intf->dev, "failed %d\n", ret);
1392	return ret;
1393}
1394
1395static void af9015_disconnect(struct dvb_usb_device *d)
1396{
1397	struct af9015_state *state = d_to_priv(d);
1398	struct usb_interface *intf = d->intf;
1399
1400	dev_dbg(&intf->dev, "\n");
1401
1402	regmap_exit(state->regmap);
1403}
1404
1405/*
1406 * Interface 0 is used by DVB-T receiver and
1407 * interface 1 is for remote controller (HID)
1408 */
1409static const struct dvb_usb_device_properties af9015_props = {
1410	.driver_name = KBUILD_MODNAME,
1411	.owner = THIS_MODULE,
1412	.adapter_nr = adapter_nr,
1413	.size_of_priv = sizeof(struct af9015_state),
1414
1415	.generic_bulk_ctrl_endpoint = 0x02,
1416	.generic_bulk_ctrl_endpoint_response = 0x81,
1417
1418	.probe = af9015_probe,
1419	.disconnect = af9015_disconnect,
1420	.identify_state = af9015_identify_state,
1421	.firmware = AF9015_FIRMWARE,
1422	.download_firmware = af9015_download_firmware,
1423
1424	.i2c_algo = &af9015_i2c_algo,
1425	.read_config = af9015_read_config,
1426	.frontend_attach = af9015_af9013_frontend_attach,
1427	.frontend_detach = af9015_frontend_detach,
1428	.tuner_attach = af9015_tuner_attach,
1429	.init = af9015_init,
1430	.get_rc_config = af9015_get_rc_config,
1431	.get_stream_config = af9015_get_stream_config,
1432	.streaming_ctrl = af9015_streaming_ctrl,
1433
1434	.get_adapter_count = af9015_get_adapter_count,
1435	.adapter = {
1436		{
1437			.caps = DVB_USB_ADAP_HAS_PID_FILTER |
1438				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1439			.pid_filter_count = 32,
1440			.pid_filter = af9015_pid_filter,
1441			.pid_filter_ctrl = af9015_pid_filter_ctrl,
1442
1443			.stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
1444		}, {
1445			.caps = DVB_USB_ADAP_HAS_PID_FILTER |
1446				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1447			.pid_filter_count = 32,
1448			.pid_filter = af9015_pid_filter,
1449			.pid_filter_ctrl = af9015_pid_filter_ctrl,
1450
1451			.stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
1452		},
1453	},
1454};
1455
1456static const struct usb_device_id af9015_id_table[] = {
1457	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9015_9015,
1458		&af9015_props, "Afatech AF9015 reference design", NULL) },
1459	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9015_9016,
1460		&af9015_props, "Afatech AF9015 reference design", NULL) },
1461	{ DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_GOLD,
1462		&af9015_props, "Leadtek WinFast DTV Dongle Gold", RC_MAP_LEADTEK_Y04G0051) },
1463	{ DVB_USB_DEVICE(USB_VID_PINNACLE, USB_PID_PINNACLE_PCTV71E,
1464		&af9015_props, "Pinnacle PCTV 71e", NULL) },
1465	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_399U,
1466		&af9015_props, "KWorld PlusTV Dual DVB-T Stick (DVB-T 399U)", NULL) },
1467	{ DVB_USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TINYTWIN,
1468		&af9015_props, "DigitalNow TinyTwin", RC_MAP_AZUREWAVE_AD_TU700) },
1469	{ DVB_USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_AZUREWAVE_AD_TU700,
1470		&af9015_props, "TwinHan AzureWave AD-TU700(704J)", RC_MAP_AZUREWAVE_AD_TU700) },
1471	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_USB_XE_REV2,
1472		&af9015_props, "TerraTec Cinergy T USB XE", NULL) },
1473	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_PC160_2T,
1474		&af9015_props, "KWorld PlusTV Dual DVB-T PCI (DVB-T PC160-2T)", NULL) },
1475	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_VOLAR_X,
1476		&af9015_props, "AVerMedia AVerTV DVB-T Volar X", RC_MAP_AVERMEDIA_M135A) },
1477	{ DVB_USB_DEVICE(USB_VID_XTENSIONS, USB_PID_XTENSIONS_XD_380,
1478		&af9015_props, "Xtensions XD-380", NULL) },
1479	{ DVB_USB_DEVICE(USB_VID_MSI_2, USB_PID_MSI_DIGIVOX_DUO,
1480		&af9015_props, "MSI DIGIVOX Duo", RC_MAP_MSI_DIGIVOX_III) },
1481	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_VOLAR_X_2,
1482		&af9015_props, "Fujitsu-Siemens Slim Mobile USB DVB-T", NULL) },
1483	{ DVB_USB_DEVICE(USB_VID_TELESTAR,  USB_PID_TELESTAR_STARSTICK_2,
1484		&af9015_props, "Telestar Starstick 2", NULL) },
1485	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A309,
1486		&af9015_props, "AVerMedia A309", NULL) },
1487	{ DVB_USB_DEVICE(USB_VID_MSI_2, USB_PID_MSI_DIGI_VOX_MINI_III,
1488		&af9015_props, "MSI Digi VOX mini III", RC_MAP_MSI_DIGIVOX_III) },
1489	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_395U,
1490		&af9015_props, "KWorld USB DVB-T TV Stick II (VS-DVB-T 395U)", NULL) },
1491	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_395U_2,
1492		&af9015_props, "KWorld USB DVB-T TV Stick II (VS-DVB-T 395U)", NULL) },
1493	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_395U_3,
1494		&af9015_props, "KWorld USB DVB-T TV Stick II (VS-DVB-T 395U)", NULL) },
1495	{ DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_TREKSTOR_DVBT,
1496		&af9015_props, "TrekStor DVB-T USB Stick", RC_MAP_TREKSTOR) },
1497	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A850,
1498		&af9015_props, "AverMedia AVerTV Volar Black HD (A850)", NULL) },
1499	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A805,
1500		&af9015_props, "AverMedia AVerTV Volar GPS 805 (A805)", NULL) },
1501	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CONCEPTRONIC_CTVDIGRCU,
1502		&af9015_props, "Conceptronic USB2.0 DVB-T CTVDIGRCU V3.0", NULL) },
1503	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_MC810,
1504		&af9015_props, "KWorld Digital MC-810", NULL) },
1505	{ DVB_USB_DEVICE(USB_VID_KYE, USB_PID_GENIUS_TVGO_DVB_T03,
1506		&af9015_props, "Genius TVGo DVB-T03", NULL) },
1507	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_399U_2,
1508		&af9015_props, "KWorld PlusTV Dual DVB-T Stick (DVB-T 399U)", NULL) },
1509	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_PC160_T,
1510		&af9015_props, "KWorld PlusTV DVB-T PCI Pro Card (DVB-T PC160-T)", NULL) },
1511	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20,
1512		&af9015_props, "Sveon STV20 Tuner USB DVB-T HDTV", NULL) },
1513	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_TINYTWIN_2,
1514		&af9015_props, "DigitalNow TinyTwin v2", RC_MAP_DIGITALNOW_TINYTWIN) },
1515	{ DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV2000DS,
1516		&af9015_props, "Leadtek WinFast DTV2000DS", RC_MAP_LEADTEK_Y04G0051) },
1517	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB383_T,
1518		&af9015_props, "KWorld USB DVB-T Stick Mobile (UB383-T)", NULL) },
1519	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_395U_4,
1520		&af9015_props, "KWorld USB DVB-T TV Stick II (VS-DVB-T 395U)", NULL) },
1521	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A815M,
1522		&af9015_props, "AverMedia AVerTV Volar M (A815Mac)", NULL) },
1523	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_RC,
1524		&af9015_props, "TerraTec Cinergy T Stick RC", RC_MAP_TERRATEC_SLIM_2) },
1525	/* XXX: that same ID [0ccd:0099] is used by af9035 driver too */
1526	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_DUAL_RC,
1527		&af9015_props, "TerraTec Cinergy T Stick Dual RC", RC_MAP_TERRATEC_SLIM) },
1528	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A850T,
1529		&af9015_props, "AverMedia AVerTV Red HD+ (A850T)", NULL) },
1530	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TINYTWIN_3,
1531		&af9015_props, "DigitalNow TinyTwin v3", RC_MAP_DIGITALNOW_TINYTWIN) },
1532	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22,
1533		&af9015_props, "Sveon STV22 Dual USB DVB-T Tuner HDTV", RC_MAP_MSI_DIGIVOX_III) },
1534	{ }
1535};
1536MODULE_DEVICE_TABLE(usb, af9015_id_table);
1537
1538/* usb specific object needed to register this driver with the usb subsystem */
1539static struct usb_driver af9015_usb_driver = {
1540	.name = KBUILD_MODNAME,
1541	.id_table = af9015_id_table,
1542	.probe = dvb_usbv2_probe,
1543	.disconnect = dvb_usbv2_disconnect,
1544	.suspend = dvb_usbv2_suspend,
1545	.resume = dvb_usbv2_resume,
1546	.reset_resume = dvb_usbv2_reset_resume,
1547	.no_dynamic_id = 1,
1548	.soft_unbind = 1,
1549};
1550
1551module_usb_driver(af9015_usb_driver);
1552
1553MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1554MODULE_DESCRIPTION("Afatech AF9015 driver");
1555MODULE_LICENSE("GPL");
1556MODULE_FIRMWARE(AF9015_FIRMWARE);