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