drivers/media/usb/dvb-usb-v2/af9035.c

   1 /*
   2  * Afatech AF9035 DVB USB driver
   3  *
   4  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   5  * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
   6  *
   7  *    This program is free software; you can redistribute it and/or modify
   8  *    it under the terms of the GNU General Public License as published by
   9  *    the Free Software Foundation; either version 2 of the License, or
  10  *    (at your option) any later version.
  11  *
  12  *    This program is distributed in the hope that it will be useful,
  13  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *    GNU General Public License for more details.
  16  *
  17  *    You should have received a copy of the GNU General Public License along
  18  *    with this program; if not, write to the Free Software Foundation, Inc.,
  19  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "af9035.h"
  23
  24 /* Max transfer size done by I2C transfer functions */
  25 #define MAX_XFER_SIZE  64
  26
  27 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  28
  29 static u16 af9035_checksum(const u8 *buf, size_t len)
  30 {
  31         size_t i;
  32         u16 checksum = 0;
  33
  34         for (i = 1; i < len; i++) {
  35                 if (i % 2)
  36                         checksum += buf[i] << 8;
  37                 else
  38                         checksum += buf[i];
  39         }
  40         checksum = ~checksum;
  41
  42         return checksum;
  43 }
  44
  45 static int af9035_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
  46 {
  47 #define REQ_HDR_LEN 4 /* send header size */
  48 #define ACK_HDR_LEN 3 /* rece header size */
  49 #define CHECKSUM_LEN 2
  50 #define USB_TIMEOUT 2000
  51         struct state *state = d_to_priv(d);
  52         struct usb_interface *intf = d->intf;
  53         int ret, wlen, rlen;
  54         u16 checksum, tmp_checksum;
  55
  56         mutex_lock(&d->usb_mutex);
  57
  58         /* buffer overflow check */
  59         if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
  60                         req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
  61                 dev_err(&intf->dev, "too much data wlen=%d rlen=%d\n",
  62                         req->wlen, req->rlen);
  63                 ret = -EINVAL;
  64                 goto exit;
  65         }
  66
  67         state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
  68         state->buf[1] = req->mbox;
  69         state->buf[2] = req->cmd;
  70         state->buf[3] = state->seq++;
  71         memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
  72
  73         wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
  74         rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
  75
  76         /* calc and add checksum */
  77         checksum = af9035_checksum(state->buf, state->buf[0] - 1);
  78         state->buf[state->buf[0] - 1] = (checksum >> 8);
  79         state->buf[state->buf[0] - 0] = (checksum & 0xff);
  80
  81         /* no ack for these packets */
  82         if (req->cmd == CMD_FW_DL)
  83                 rlen = 0;
  84
  85         ret = dvb_usbv2_generic_rw_locked(d,
  86                         state->buf, wlen, state->buf, rlen);
  87         if (ret)
  88                 goto exit;
  89
  90         /* no ack for those packets */
  91         if (req->cmd == CMD_FW_DL)
  92                 goto exit;
  93
  94         /* verify checksum */
  95         checksum = af9035_checksum(state->buf, rlen - 2);
  96         tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
  97         if (tmp_checksum != checksum) {
  98                 dev_err(&intf->dev, "command=%02x checksum mismatch (%04x != %04x)\n",
  99                         req->cmd, tmp_checksum, checksum);
 100                 ret = -EIO;
 101                 goto exit;
 102         }
 103
 104         /* check status */
 105         if (state->buf[2]) {
 106                 /* fw returns status 1 when IR code was not received */
 107                 if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
 108                         ret = 1;
 109                         goto exit;
 110                 }
 111
 112                 dev_dbg(&intf->dev, "command=%02x failed fw error=%d\n",
 113                         req->cmd, state->buf[2]);
 114                 ret = -EIO;
 115                 goto exit;
 116         }
 117
 118         /* read request, copy returned data to return buf */
 119         if (req->rlen)
 120                 memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 121 exit:
 122         mutex_unlock(&d->usb_mutex);
 123         if (ret < 0)
 124                 dev_dbg(&intf->dev, "failed=%d\n", ret);
 125         return ret;
 126 }
 127
 128 /* write multiple registers */
 129 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 130 {
 131         struct usb_interface *intf = d->intf;
 132         u8 wbuf[MAX_XFER_SIZE];
 133         u8 mbox = (reg >> 16) & 0xff;
 134         struct usb_req req = { CMD_MEM_WR, mbox, 6 + len, wbuf, 0, NULL };
 135
 136         if (6 + len > sizeof(wbuf)) {
 137                 dev_warn(&intf->dev, "i2c wr: len=%d is too big!\n", len);
 138                 return -EOPNOTSUPP;
 139         }
 140
 141         wbuf[0] = len;
 142         wbuf[1] = 2;
 143         wbuf[2] = 0;
 144         wbuf[3] = 0;
 145         wbuf[4] = (reg >> 8) & 0xff;
 146         wbuf[5] = (reg >> 0) & 0xff;
 147         memcpy(&wbuf[6], val, len);
 148
 149         return af9035_ctrl_msg(d, &req);
 150 }
 151
 152 /* read multiple registers */
 153 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 154 {
 155         u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 156         u8 mbox = (reg >> 16) & 0xff;
 157         struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 158
 159         return af9035_ctrl_msg(d, &req);
 160 }
 161
 162 /* write single register */
 163 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 164 {
 165         return af9035_wr_regs(d, reg, &val, 1);
 166 }
 167
 168 /* read single register */
 169 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 170 {
 171         return af9035_rd_regs(d, reg, val, 1);
 172 }
 173
 174 /* write single register with mask */
 175 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 176                 u8 mask)
 177 {
 178         int ret;
 179         u8 tmp;
 180
 181         /* no need for read if whole reg is written */
 182         if (mask != 0xff) {
 183                 ret = af9035_rd_regs(d, reg, &tmp, 1);
 184                 if (ret)
 185                         return ret;
 186
 187                 val &= mask;
 188                 tmp &= ~mask;
 189                 val |= tmp;
 190         }
 191
 192         return af9035_wr_regs(d, reg, &val, 1);
 193 }
 194
 195 static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type,
 196                 u8 addr, void *platform_data, struct i2c_adapter *adapter)
 197 {
 198         int ret, num;
 199         struct state *state = d_to_priv(d);
 200         struct usb_interface *intf = d->intf;
 201         struct i2c_client *client;
 202         struct i2c_board_info board_info = {
 203                 .addr = addr,
 204                 .platform_data = platform_data,
 205         };
 206
 207         strlcpy(board_info.type, type, I2C_NAME_SIZE);
 208
 209         /* find first free client */
 210         for (num = 0; num < AF9035_I2C_CLIENT_MAX; num++) {
 211                 if (state->i2c_client[num] == NULL)
 212                         break;
 213         }
 214
 215         dev_dbg(&intf->dev, "num=%d\n", num);
 216
 217         if (num == AF9035_I2C_CLIENT_MAX) {
 218                 dev_err(&intf->dev, "I2C client out of index\n");
 219                 ret = -ENODEV;
 220                 goto err;
 221         }
 222
 223         request_module("%s", board_info.type);
 224
 225         /* register I2C device */
 226         client = i2c_new_device(adapter, &board_info);
 227         if (client == NULL || client->dev.driver == NULL) {
 228                 ret = -ENODEV;
 229                 goto err;
 230         }
 231
 232         /* increase I2C driver usage count */
 233         if (!try_module_get(client->dev.driver->owner)) {
 234                 i2c_unregister_device(client);
 235                 ret = -ENODEV;
 236                 goto err;
 237         }
 238
 239         state->i2c_client[num] = client;
 240         return 0;
 241 err:
 242         dev_dbg(&intf->dev, "failed=%d\n", ret);
 243         return ret;
 244 }
 245
 246 static void af9035_del_i2c_dev(struct dvb_usb_device *d)
 247 {
 248         int num;
 249         struct state *state = d_to_priv(d);
 250         struct usb_interface *intf = d->intf;
 251         struct i2c_client *client;
 252
 253         /* find last used client */
 254         num = AF9035_I2C_CLIENT_MAX;
 255         while (num--) {
 256                 if (state->i2c_client[num] != NULL)
 257                         break;
 258         }
 259
 260         dev_dbg(&intf->dev, "num=%d\n", num);
 261
 262         if (num == -1) {
 263                 dev_err(&intf->dev, "I2C client out of index\n");
 264                 goto err;
 265         }
 266
 267         client = state->i2c_client[num];
 268
 269         /* decrease I2C driver usage count */
 270         module_put(client->dev.driver->owner);
 271
 272         /* unregister I2C device */
 273         i2c_unregister_device(client);
 274
 275         state->i2c_client[num] = NULL;
 276         return;
 277 err:
 278         dev_dbg(&intf->dev, "failed\n");
 279 }
 280
 281 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 282                 struct i2c_msg msg[], int num)
 283 {
 284         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 285         struct state *state = d_to_priv(d);
 286         int ret;
 287
 288         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 289                 return -EAGAIN;
 290
 291         /*
 292          * AF9035 I2C sub header is 5 bytes long. Meaning of those bytes are:
 293          * 0: data len
 294          * 1: I2C addr << 1
 295          * 2: reg addr len
 296          *    byte 3 and 4 can be used as reg addr
 297          * 3: reg addr MSB
 298          *    used when reg addr len is set to 2
 299          * 4: reg addr LSB
 300          *    used when reg addr len is set to 1 or 2
 301          *
 302          * For the simplify we do not use register addr at all.
 303          * NOTE: As a firmware knows tuner type there is very small possibility
 304          * there could be some tuner I2C hacks done by firmware and this may
 305          * lead problems if firmware expects those bytes are used.
 306          *
 307          * TODO: Here is few hacks. AF9035 chip integrates AF9033 demodulator.
 308          * IT9135 chip integrates AF9033 demodulator and RF tuner. For dual
 309          * tuner devices, there is also external AF9033 demodulator connected
 310          * via external I2C bus. All AF9033 demod I2C traffic, both single and
 311          * dual tuner configuration, is covered by firmware - actual USB IO
 312          * looks just like a memory access.
 313          * In case of IT913x chip, there is own tuner driver. It is implemented
 314          * currently as a I2C driver, even tuner IP block is likely build
 315          * directly into the demodulator memory space and there is no own I2C
 316          * bus. I2C subsystem does not allow register multiple devices to same
 317          * bus, having same slave address. Due to that we reuse demod address,
 318          * shifted by one bit, on that case.
 319          *
 320          * For IT930x we use a different command and the sub header is
 321          * different as well:
 322          * 0: data len
 323          * 1: I2C bus (0x03 seems to be only value used)
 324          * 2: I2C addr << 1
 325          */
 326 #define AF9035_IS_I2C_XFER_WRITE_READ(_msg, _num) \
 327         (_num == 2 && !(_msg[0].flags & I2C_M_RD) && (_msg[1].flags & I2C_M_RD))
 328 #define AF9035_IS_I2C_XFER_WRITE(_msg, _num) \
 329         (_num == 1 && !(_msg[0].flags & I2C_M_RD))
 330 #define AF9035_IS_I2C_XFER_READ(_msg, _num) \
 331         (_num == 1 && (_msg[0].flags & I2C_M_RD))
 332
 333         if (AF9035_IS_I2C_XFER_WRITE_READ(msg, num)) {
 334                 if (msg[0].len > 40 || msg[1].len > 40) {
 335                         /* TODO: correct limits > 40 */
 336                         ret = -EOPNOTSUPP;
 337                 } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 338                            (msg[0].addr == state->af9033_i2c_addr[1]) ||
 339                            (state->chip_type == 0x9135)) {
 340                         /* demod access via firmware interface */
 341                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 342                                         msg[0].buf[2];
 343
 344                         if (msg[0].addr == state->af9033_i2c_addr[1] ||
 345                             msg[0].addr == (state->af9033_i2c_addr[1] >> 1))
 346                                 reg |= 0x100000;
 347
 348                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 349                                         msg[1].len);
 350                 } else if (state->no_read) {
 351                         memset(msg[1].buf, 0, msg[1].len);
 352                         ret = 0;
 353                 } else {
 354                         /* I2C write + read */
 355                         u8 buf[MAX_XFER_SIZE];
 356                         struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
 357                                         buf, msg[1].len, msg[1].buf };
 358
 359                         if (state->chip_type == 0x9306) {
 360                                 req.cmd = CMD_GENERIC_I2C_RD;
 361                                 req.wlen = 3 + msg[0].len;
 362                         }
 363                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 364
 365                         buf[0] = msg[1].len;
 366                         if (state->chip_type == 0x9306) {
 367                                 buf[1] = 0x03; /* I2C bus */
 368                                 buf[2] = msg[0].addr << 1;
 369                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 370                         } else {
 371                                 buf[1] = msg[0].addr << 1;
 372                                 buf[3] = 0x00; /* reg addr MSB */
 373                                 buf[4] = 0x00; /* reg addr LSB */
 374
 375                                 /* Keep prev behavior for write req len > 2*/
 376                                 if (msg[0].len > 2) {
 377                                         buf[2] = 0x00; /* reg addr len */
 378                                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 379
 380                                 /* Use reg addr fields if write req len <= 2 */
 381                                 } else {
 382                                         req.wlen = 5;
 383                                         buf[2] = msg[0].len;
 384                                         if (msg[0].len == 2) {
 385                                                 buf[3] = msg[0].buf[0];
 386                                                 buf[4] = msg[0].buf[1];
 387                                         } else if (msg[0].len == 1) {
 388                                                 buf[4] = msg[0].buf[0];
 389                                         }
 390                                 }
 391                         }
 392                         ret = af9035_ctrl_msg(d, &req);
 393                 }
 394         } else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) {
 395                 if (msg[0].len > 40) {
 396                         /* TODO: correct limits > 40 */
 397                         ret = -EOPNOTSUPP;
 398                 } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 399                            (msg[0].addr == state->af9033_i2c_addr[1]) ||
 400                            (state->chip_type == 0x9135)) {
 401                         /* demod access via firmware interface */
 402                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 403                                         msg[0].buf[2];
 404
 405                         if (msg[0].addr == state->af9033_i2c_addr[1] ||
 406                             msg[0].addr == (state->af9033_i2c_addr[1] >> 1))
 407                                 reg |= 0x100000;
 408
 409                         ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
 410                                         msg[0].len - 3);
 411                 } else {
 412                         /* I2C write */
 413                         u8 buf[MAX_XFER_SIZE];
 414                         struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 415                                         buf, 0, NULL };
 416
 417                         if (state->chip_type == 0x9306) {
 418                                 req.cmd = CMD_GENERIC_I2C_WR;
 419                                 req.wlen = 3 + msg[0].len;
 420                         }
 421
 422                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 423                         buf[0] = msg[0].len;
 424                         if (state->chip_type == 0x9306) {
 425                                 buf[1] = 0x03; /* I2C bus */
 426                                 buf[2] = msg[0].addr << 1;
 427                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 428                         } else {
 429                                 buf[1] = msg[0].addr << 1;
 430                                 buf[2] = 0x00; /* reg addr len */
 431                                 buf[3] = 0x00; /* reg addr MSB */
 432                                 buf[4] = 0x00; /* reg addr LSB */
 433                                 memcpy(&buf[5], msg[0].buf, msg[0].len);
 434                         }
 435                         ret = af9035_ctrl_msg(d, &req);
 436                 }
 437         } else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
 438                 if (msg[0].len > 40) {
 439                         /* TODO: correct limits > 40 */
 440                         ret = -EOPNOTSUPP;
 441                 } else if (state->no_read) {
 442                         memset(msg[0].buf, 0, msg[0].len);
 443                         ret = 0;
 444                 } else {
 445                         /* I2C read */
 446                         u8 buf[5];
 447                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 448                                                 buf, msg[0].len, msg[0].buf };
 449
 450                         if (state->chip_type == 0x9306) {
 451                                 req.cmd = CMD_GENERIC_I2C_RD;
 452                                 req.wlen = 3;
 453                         }
 454                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 455                         buf[0] = msg[0].len;
 456                         if (state->chip_type == 0x9306) {
 457                                 buf[1] = 0x03; /* I2C bus */
 458                                 buf[2] = msg[0].addr << 1;
 459                         } else {
 460                                 buf[1] = msg[0].addr << 1;
 461                                 buf[2] = 0x00; /* reg addr len */
 462                                 buf[3] = 0x00; /* reg addr MSB */
 463                                 buf[4] = 0x00; /* reg addr LSB */
 464                         }
 465                         ret = af9035_ctrl_msg(d, &req);
 466                 }
 467         } else {
 468                 /*
 469                  * We support only three kind of I2C transactions:
 470                  * 1) 1 x write + 1 x read (repeated start)
 471                  * 2) 1 x write
 472                  * 3) 1 x read
 473                  */
 474                 ret = -EOPNOTSUPP;
 475         }
 476
 477         mutex_unlock(&d->i2c_mutex);
 478
 479         if (ret < 0)
 480                 return ret;
 481         else
 482                 return num;
 483 }
 484
 485 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 486 {
 487         return I2C_FUNC_I2C;
 488 }
 489
 490 static struct i2c_algorithm af9035_i2c_algo = {
 491         .master_xfer = af9035_i2c_master_xfer,
 492         .functionality = af9035_i2c_functionality,
 493 };
 494
 495 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 496 {
 497         struct state *state = d_to_priv(d);
 498         struct usb_interface *intf = d->intf;
 499         int ret, ts_mode_invalid;
 500         u8 tmp;
 501         u8 wbuf[1] = { 1 };
 502         u8 rbuf[4];
 503         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 504                         sizeof(rbuf), rbuf };
 505
 506         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 507         if (ret < 0)
 508                 goto err;
 509
 510         state->chip_version = rbuf[0];
 511         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 512
 513         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 514         if (ret < 0)
 515                 goto err;
 516
 517         dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 518                  state->prechip_version, state->chip_version, state->chip_type);
 519
 520         if (state->chip_type == 0x9135) {
 521                 if (state->chip_version == 0x02)
 522                         *name = AF9035_FIRMWARE_IT9135_V2;
 523                 else
 524                         *name = AF9035_FIRMWARE_IT9135_V1;
 525                 state->eeprom_addr = EEPROM_BASE_IT9135;
 526         } else if (state->chip_type == 0x9306) {
 527                 *name = AF9035_FIRMWARE_IT9303;
 528                 state->eeprom_addr = EEPROM_BASE_IT9135;
 529         } else {
 530                 *name = AF9035_FIRMWARE_AF9035;
 531                 state->eeprom_addr = EEPROM_BASE_AF9035;
 532         }
 533
 534
 535         /* check for dual tuner mode */
 536         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp);
 537         if (ret < 0)
 538                 goto err;
 539
 540         ts_mode_invalid = 0;
 541         switch (tmp) {
 542         case 0:
 543                 break;
 544         case 1:
 545         case 3:
 546                 state->dual_mode = true;
 547                 break;
 548         case 5:
 549                 if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
 550                         state->dual_mode = true;        /* AF9035 */
 551                 else
 552                         ts_mode_invalid = 1;
 553                 break;
 554         default:
 555                 ts_mode_invalid = 1;
 556         }
 557
 558         dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
 559
 560         if (ts_mode_invalid)
 561                 dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 562
 563
 564         ret = af9035_ctrl_msg(d, &req);
 565         if (ret < 0)
 566                 goto err;
 567
 568         dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
 569         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 570                 ret = WARM;
 571         else
 572                 ret = COLD;
 573
 574         return ret;
 575
 576 err:
 577         dev_dbg(&intf->dev, "failed=%d\n", ret);
 578
 579         return ret;
 580 }
 581
 582 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 583                 const struct firmware *fw)
 584 {
 585         struct usb_interface *intf = d->intf;
 586         int ret, i, j, len;
 587         u8 wbuf[1];
 588         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 589         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 590         u8 hdr_core;
 591         u16 hdr_addr, hdr_data_len, hdr_checksum;
 592         #define MAX_DATA 58
 593         #define HDR_SIZE 7
 594
 595         /*
 596          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 597          *
 598          * byte 0: MCS 51 core
 599          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 600          *  address spaces
 601          * byte 1-2: Big endian destination address
 602          * byte 3-4: Big endian number of data bytes following the header
 603          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 604          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 605          */
 606
 607         for (i = fw->size; i > HDR_SIZE;) {
 608                 hdr_core = fw->data[fw->size - i + 0];
 609                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 610                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 611                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 612                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 613                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 614                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 615
 616                 dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
 617                         hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
 618
 619                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 620                                 (hdr_data_len > i)) {
 621                         dev_dbg(&intf->dev, "bad firmware\n");
 622                         break;
 623                 }
 624
 625                 /* download begin packet */
 626                 req.cmd = CMD_FW_DL_BEGIN;
 627                 ret = af9035_ctrl_msg(d, &req);
 628                 if (ret < 0)
 629                         goto err;
 630
 631                 /* download firmware packet(s) */
 632                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 633                         len = j;
 634                         if (len > MAX_DATA)
 635                                 len = MAX_DATA;
 636                         req_fw_dl.wlen = len;
 637                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 638                                         HDR_SIZE + hdr_data_len - j];
 639                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 640                         if (ret < 0)
 641                                 goto err;
 642                 }
 643
 644                 /* download end packet */
 645                 req.cmd = CMD_FW_DL_END;
 646                 ret = af9035_ctrl_msg(d, &req);
 647                 if (ret < 0)
 648                         goto err;
 649
 650                 i -= hdr_data_len + HDR_SIZE;
 651
 652                 dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
 653         }
 654
 655         /* print warn if firmware is bad, continue and see what happens */
 656         if (i)
 657                 dev_warn(&intf->dev, "bad firmware\n");
 658
 659         return 0;
 660
 661 err:
 662         dev_dbg(&intf->dev, "failed=%d\n", ret);
 663
 664         return ret;
 665 }
 666
 667 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 668                 const struct firmware *fw)
 669 {
 670         struct usb_interface *intf = d->intf;
 671         int ret, i, i_prev;
 672         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 673         #define HDR_SIZE 7
 674
 675         /*
 676          * There seems to be following firmware header. Meaning of bytes 0-3
 677          * is unknown.
 678          *
 679          * 0: 3
 680          * 1: 0, 1
 681          * 2: 0
 682          * 3: 1, 2, 3
 683          * 4: addr MSB
 684          * 5: addr LSB
 685          * 6: count of data bytes ?
 686          */
 687         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 688                 if (i == fw->size ||
 689                                 (fw->data[i + 0] == 0x03 &&
 690                                 (fw->data[i + 1] == 0x00 ||
 691                                 fw->data[i + 1] == 0x01) &&
 692                                 fw->data[i + 2] == 0x00)) {
 693                         req_fw_dl.wlen = i - i_prev;
 694                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 695                         i_prev = i;
 696                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 697                         if (ret < 0)
 698                                 goto err;
 699
 700                         dev_dbg(&intf->dev, "data uploaded=%d\n", i);
 701                 }
 702         }
 703
 704         return 0;
 705
 706 err:
 707         dev_dbg(&intf->dev, "failed=%d\n", ret);
 708
 709         return ret;
 710 }
 711
 712 static int af9035_download_firmware(struct dvb_usb_device *d,
 713                 const struct firmware *fw)
 714 {
 715         struct usb_interface *intf = d->intf;
 716         struct state *state = d_to_priv(d);
 717         int ret;
 718         u8 wbuf[1];
 719         u8 rbuf[4];
 720         u8 tmp;
 721         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 722         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 723
 724         dev_dbg(&intf->dev, "\n");
 725
 726         /*
 727          * In case of dual tuner configuration we need to do some extra
 728          * initialization in order to download firmware to slave demod too,
 729          * which is done by master demod.
 730          * Master feeds also clock and controls power via GPIO.
 731          */
 732         if (state->dual_mode) {
 733                 /* configure gpioh1, reset & power slave demod */
 734                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 735                 if (ret < 0)
 736                         goto err;
 737
 738                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 739                 if (ret < 0)
 740                         goto err;
 741
 742                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 743                 if (ret < 0)
 744                         goto err;
 745
 746                 usleep_range(10000, 50000);
 747
 748                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 749                 if (ret < 0)
 750                         goto err;
 751
 752                 /* tell the slave I2C address */
 753                 ret = af9035_rd_reg(d,
 754                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 755                                 &tmp);
 756                 if (ret < 0)
 757                         goto err;
 758
 759                 /* use default I2C address if eeprom has no address set */
 760                 if (!tmp)
 761                         tmp = 0x3a;
 762
 763                 if ((state->chip_type == 0x9135) ||
 764                                 (state->chip_type == 0x9306)) {
 765                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 766                         if (ret < 0)
 767                                 goto err;
 768                 } else {
 769                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 770                         if (ret < 0)
 771                                 goto err;
 772
 773                         /* enable clock out */
 774                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 775                         if (ret < 0)
 776                                 goto err;
 777                 }
 778         }
 779
 780         if (fw->data[0] == 0x01)
 781                 ret = af9035_download_firmware_old(d, fw);
 782         else
 783                 ret = af9035_download_firmware_new(d, fw);
 784         if (ret < 0)
 785                 goto err;
 786
 787         /* firmware loaded, request boot */
 788         req.cmd = CMD_FW_BOOT;
 789         ret = af9035_ctrl_msg(d, &req);
 790         if (ret < 0)
 791                 goto err;
 792
 793         /* ensure firmware starts */
 794         wbuf[0] = 1;
 795         ret = af9035_ctrl_msg(d, &req_fw_ver);
 796         if (ret < 0)
 797                 goto err;
 798
 799         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 800                 dev_err(&intf->dev, "firmware did not run\n");
 801                 ret = -ENODEV;
 802                 goto err;
 803         }
 804
 805         dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
 806                  rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 807
 808         return 0;
 809
 810 err:
 811         dev_dbg(&intf->dev, "failed=%d\n", ret);
 812
 813         return ret;
 814 }
 815
 816 static int af9035_read_config(struct dvb_usb_device *d)
 817 {
 818         struct usb_interface *intf = d->intf;
 819         struct state *state = d_to_priv(d);
 820         int ret, i;
 821         u8 tmp;
 822         u16 tmp16, addr;
 823
 824         /* demod I2C "address" */
 825         state->af9033_i2c_addr[0] = 0x38;
 826         state->af9033_i2c_addr[1] = 0x3a;
 827         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 828         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 829         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 830         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 831
 832         if (state->chip_type == 0x9135) {
 833                 /* feed clock for integrated RF tuner */
 834                 state->af9033_config[0].dyn0_clk = true;
 835                 state->af9033_config[1].dyn0_clk = true;
 836
 837                 if (state->chip_version == 0x02) {
 838                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 839                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 840                         tmp16 = 0x00461d; /* eeprom memory mapped location */
 841                 } else {
 842                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 843                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 844                         tmp16 = 0x00461b; /* eeprom memory mapped location */
 845                 }
 846
 847                 /* check if eeprom exists */
 848                 ret = af9035_rd_reg(d, tmp16, &tmp);
 849                 if (ret < 0)
 850                         goto err;
 851
 852                 if (tmp == 0x00) {
 853                         dev_dbg(&intf->dev, "no eeprom\n");
 854                         goto skip_eeprom;
 855                 }
 856         } else if (state->chip_type == 0x9306) {
 857                 /*
 858                  * IT930x is an USB bridge, only single demod-single tuner
 859                  * configurations seen so far.
 860                  */
 861                 return 0;
 862         }
 863
 864
 865         if (state->dual_mode) {
 866                 /* read 2nd demodulator I2C address */
 867                 ret = af9035_rd_reg(d,
 868                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 869                                 &tmp);
 870                 if (ret < 0)
 871                         goto err;
 872
 873                 if (tmp)
 874                         state->af9033_i2c_addr[1] = tmp;
 875
 876                 dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n", tmp);
 877         }
 878
 879         addr = state->eeprom_addr;
 880
 881         for (i = 0; i < state->dual_mode + 1; i++) {
 882                 /* tuner */
 883                 ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
 884                 if (ret < 0)
 885                         goto err;
 886
 887                 dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 888
 889                 /* tuner sanity check */
 890                 if (state->chip_type == 0x9135) {
 891                         if (state->chip_version == 0x02) {
 892                                 /* IT9135 BX (v2) */
 893                                 switch (tmp) {
 894                                 case AF9033_TUNER_IT9135_60:
 895                                 case AF9033_TUNER_IT9135_61:
 896                                 case AF9033_TUNER_IT9135_62:
 897                                         state->af9033_config[i].tuner = tmp;
 898                                         break;
 899                                 }
 900                         } else {
 901                                 /* IT9135 AX (v1) */
 902                                 switch (tmp) {
 903                                 case AF9033_TUNER_IT9135_38:
 904                                 case AF9033_TUNER_IT9135_51:
 905                                 case AF9033_TUNER_IT9135_52:
 906                                         state->af9033_config[i].tuner = tmp;
 907                                         break;
 908                                 }
 909                         }
 910                 } else {
 911                         /* AF9035 */
 912                         state->af9033_config[i].tuner = tmp;
 913                 }
 914
 915                 if (state->af9033_config[i].tuner != tmp) {
 916                         dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
 917                                  i, tmp, state->af9033_config[i].tuner);
 918                 }
 919
 920                 switch (state->af9033_config[i].tuner) {
 921                 case AF9033_TUNER_TUA9001:
 922                 case AF9033_TUNER_FC0011:
 923                 case AF9033_TUNER_MXL5007T:
 924                 case AF9033_TUNER_TDA18218:
 925                 case AF9033_TUNER_FC2580:
 926                 case AF9033_TUNER_FC0012:
 927                         state->af9033_config[i].spec_inv = 1;
 928                         break;
 929                 case AF9033_TUNER_IT9135_38:
 930                 case AF9033_TUNER_IT9135_51:
 931                 case AF9033_TUNER_IT9135_52:
 932                 case AF9033_TUNER_IT9135_60:
 933                 case AF9033_TUNER_IT9135_61:
 934                 case AF9033_TUNER_IT9135_62:
 935                         break;
 936                 default:
 937                         dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
 938                                  tmp);
 939                 }
 940
 941                 /* disable dual mode if driver does not support it */
 942                 if (i == 1)
 943                         switch (state->af9033_config[i].tuner) {
 944                         case AF9033_TUNER_FC0012:
 945                         case AF9033_TUNER_IT9135_38:
 946                         case AF9033_TUNER_IT9135_51:
 947                         case AF9033_TUNER_IT9135_52:
 948                         case AF9033_TUNER_IT9135_60:
 949                         case AF9033_TUNER_IT9135_61:
 950                         case AF9033_TUNER_IT9135_62:
 951                         case AF9033_TUNER_MXL5007T:
 952                                 break;
 953                         default:
 954                                 state->dual_mode = false;
 955                                 dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
 956                 }
 957
 958                 /* tuner IF frequency */
 959                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
 960                 if (ret < 0)
 961                         goto err;
 962
 963                 tmp16 = tmp;
 964
 965                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
 966                 if (ret < 0)
 967                         goto err;
 968
 969                 tmp16 |= tmp << 8;
 970
 971                 dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 972
 973                 addr += 0x10; /* shift for the 2nd tuner params */
 974         }
 975
 976 skip_eeprom:
 977         /* get demod clock */
 978         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 979         if (ret < 0)
 980                 goto err;
 981
 982         tmp = (tmp >> 0) & 0x0f;
 983
 984         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 985                 if (state->chip_type == 0x9135)
 986                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 987                 else
 988                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 989         }
 990
 991         state->no_read = false;
 992         /* Some MXL5007T devices cannot properly handle tuner I2C read ops. */
 993         if (state->af9033_config[0].tuner == AF9033_TUNER_MXL5007T &&
 994                 le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA)
 995
 996                 switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
 997                 case USB_PID_AVERMEDIA_A867:
 998                 case USB_PID_AVERMEDIA_TWINSTAR:
 999                         dev_info(&intf->dev,
1000                                  "Device may have issues with I2C read operations. Enabling fix.\n");
1001                         state->no_read = true;
1002                         break;
1003                 }
1004
1005         return 0;
1006
1007 err:
1008         dev_dbg(&intf->dev, "failed=%d\n", ret);
1009
1010         return ret;
1011 }
1012
1013 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
1014                 int cmd, int arg)
1015 {
1016         struct usb_interface *intf = d->intf;
1017         int ret;
1018         u8 val;
1019
1020         dev_dbg(&intf->dev, "cmd=%d arg=%d\n", cmd, arg);
1021
1022         /*
1023          * CEN     always enabled by hardware wiring
1024          * RESETN  GPIOT3
1025          * RXEN    GPIOT2
1026          */
1027
1028         switch (cmd) {
1029         case TUA9001_CMD_RESETN:
1030                 if (arg)
1031                         val = 0x00;
1032                 else
1033                         val = 0x01;
1034
1035                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
1036                 if (ret < 0)
1037                         goto err;
1038                 break;
1039         case TUA9001_CMD_RXEN:
1040                 if (arg)
1041                         val = 0x01;
1042                 else
1043                         val = 0x00;
1044
1045                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
1046                 if (ret < 0)
1047                         goto err;
1048                 break;
1049         }
1050
1051         return 0;
1052
1053 err:
1054         dev_dbg(&intf->dev, "failed=%d\n", ret);
1055
1056         return ret;
1057 }
1058
1059
1060 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
1061                 int cmd, int arg)
1062 {
1063         struct usb_interface *intf = d->intf;
1064         int ret;
1065
1066         switch (cmd) {
1067         case FC0011_FE_CALLBACK_POWER:
1068                 /* Tuner enable */
1069                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
1070                 if (ret < 0)
1071                         goto err;
1072
1073                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
1074                 if (ret < 0)
1075                         goto err;
1076
1077                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
1078                 if (ret < 0)
1079                         goto err;
1080
1081                 /* LED */
1082                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
1083                 if (ret < 0)
1084                         goto err;
1085
1086                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
1087                 if (ret < 0)
1088                         goto err;
1089
1090                 usleep_range(10000, 50000);
1091                 break;
1092         case FC0011_FE_CALLBACK_RESET:
1093                 ret = af9035_wr_reg(d, 0xd8e9, 1);
1094                 if (ret < 0)
1095                         goto err;
1096
1097                 ret = af9035_wr_reg(d, 0xd8e8, 1);
1098                 if (ret < 0)
1099                         goto err;
1100
1101                 ret = af9035_wr_reg(d, 0xd8e7, 1);
1102                 if (ret < 0)
1103                         goto err;
1104
1105                 usleep_range(10000, 20000);
1106
1107                 ret = af9035_wr_reg(d, 0xd8e7, 0);
1108                 if (ret < 0)
1109                         goto err;
1110
1111                 usleep_range(10000, 20000);
1112                 break;
1113         default:
1114                 ret = -EINVAL;
1115                 goto err;
1116         }
1117
1118         return 0;
1119
1120 err:
1121         dev_dbg(&intf->dev, "failed=%d\n", ret);
1122
1123         return ret;
1124 }
1125
1126 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
1127 {
1128         struct state *state = d_to_priv(d);
1129
1130         switch (state->af9033_config[0].tuner) {
1131         case AF9033_TUNER_FC0011:
1132                 return af9035_fc0011_tuner_callback(d, cmd, arg);
1133         case AF9033_TUNER_TUA9001:
1134                 return af9035_tua9001_tuner_callback(d, cmd, arg);
1135         default:
1136                 break;
1137         }
1138
1139         return 0;
1140 }
1141
1142 static int af9035_frontend_callback(void *adapter_priv, int component,
1143                                     int cmd, int arg)
1144 {
1145         struct i2c_adapter *adap = adapter_priv;
1146         struct dvb_usb_device *d = i2c_get_adapdata(adap);
1147         struct usb_interface *intf = d->intf;
1148
1149         dev_dbg(&intf->dev, "component=%d cmd=%d arg=%d\n",
1150                 component, cmd, arg);
1151
1152         switch (component) {
1153         case DVB_FRONTEND_COMPONENT_TUNER:
1154                 return af9035_tuner_callback(d, cmd, arg);
1155         default:
1156                 break;
1157         }
1158
1159         return 0;
1160 }
1161
1162 static int af9035_get_adapter_count(struct dvb_usb_device *d)
1163 {
1164         struct state *state = d_to_priv(d);
1165
1166         return state->dual_mode + 1;
1167 }
1168
1169 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
1170 {
1171         struct state *state = adap_to_priv(adap);
1172         struct dvb_usb_device *d = adap_to_d(adap);
1173         struct usb_interface *intf = d->intf;
1174         int ret;
1175
1176         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1177
1178         if (!state->af9033_config[adap->id].tuner) {
1179                 /* unsupported tuner */
1180                 ret = -ENODEV;
1181                 goto err;
1182         }
1183
1184         state->af9033_config[adap->id].fe = &adap->fe[0];
1185         state->af9033_config[adap->id].ops = &state->ops;
1186         ret = af9035_add_i2c_dev(d, "af9033", state->af9033_i2c_addr[adap->id],
1187                         &state->af9033_config[adap->id], &d->i2c_adap);
1188         if (ret)
1189                 goto err;
1190
1191         if (adap->fe[0] == NULL) {
1192                 ret = -ENODEV;
1193                 goto err;
1194         }
1195
1196         /* disable I2C-gate */
1197         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
1198         adap->fe[0]->callback = af9035_frontend_callback;
1199
1200         return 0;
1201
1202 err:
1203         dev_dbg(&intf->dev, "failed=%d\n", ret);
1204
1205         return ret;
1206 }
1207
1208 static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
1209 {
1210         struct state *state = adap_to_priv(adap);
1211         struct dvb_usb_device *d = adap_to_d(adap);
1212         struct usb_interface *intf = d->intf;
1213         int ret;
1214         struct si2168_config si2168_config;
1215         struct i2c_adapter *adapter;
1216
1217         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1218
1219         memset(&si2168_config, 0, sizeof(si2168_config));
1220         si2168_config.i2c_adapter = &adapter;
1221         si2168_config.fe = &adap->fe[0];
1222         si2168_config.ts_mode = SI2168_TS_SERIAL;
1223
1224         state->af9033_config[adap->id].fe = &adap->fe[0];
1225         state->af9033_config[adap->id].ops = &state->ops;
1226         ret = af9035_add_i2c_dev(d, "si2168", 0x67, &si2168_config,
1227                                 &d->i2c_adap);
1228         if (ret)
1229                 goto err;
1230
1231         if (adap->fe[0] == NULL) {
1232                 ret = -ENODEV;
1233                 goto err;
1234         }
1235         state->i2c_adapter_demod = adapter;
1236
1237         return 0;
1238
1239 err:
1240         dev_dbg(&intf->dev, "failed=%d\n", ret);
1241
1242         return ret;
1243 }
1244
1245 static int af9035_frontend_detach(struct dvb_usb_adapter *adap)
1246 {
1247         struct state *state = adap_to_priv(adap);
1248         struct dvb_usb_device *d = adap_to_d(adap);
1249         struct usb_interface *intf = d->intf;
1250         int demod2;
1251
1252         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1253
1254         /*
1255          * For dual tuner devices we have to resolve 2nd demod client, as there
1256          * is two different kind of tuner drivers; one is using I2C binding
1257          * and the other is using DVB attach/detach binding.
1258          */
1259         switch (state->af9033_config[adap->id].tuner) {
1260         case AF9033_TUNER_IT9135_38:
1261         case AF9033_TUNER_IT9135_51:
1262         case AF9033_TUNER_IT9135_52:
1263         case AF9033_TUNER_IT9135_60:
1264         case AF9033_TUNER_IT9135_61:
1265         case AF9033_TUNER_IT9135_62:
1266                 demod2 = 2;
1267                 break;
1268         default:
1269                 demod2 = 1;
1270         }
1271
1272         if (adap->id == 1) {
1273                 if (state->i2c_client[demod2])
1274                         af9035_del_i2c_dev(d);
1275         } else if (adap->id == 0) {
1276                 if (state->i2c_client[0])
1277                         af9035_del_i2c_dev(d);
1278         }
1279
1280         return 0;
1281 }
1282
1283 static const struct fc0011_config af9035_fc0011_config = {
1284         .i2c_address = 0x60,
1285 };
1286
1287 static struct mxl5007t_config af9035_mxl5007t_config[] = {
1288         {
1289                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1290                 .if_freq_hz = MxL_IF_4_57_MHZ,
1291                 .invert_if = 0,
1292                 .loop_thru_enable = 0,
1293                 .clk_out_enable = 0,
1294                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1295         }, {
1296                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1297                 .if_freq_hz = MxL_IF_4_57_MHZ,
1298                 .invert_if = 0,
1299                 .loop_thru_enable = 1,
1300                 .clk_out_enable = 1,
1301                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1302         }
1303 };
1304
1305 static struct tda18218_config af9035_tda18218_config = {
1306         .i2c_address = 0x60,
1307         .i2c_wr_max = 21,
1308 };
1309
1310 static const struct fc0012_config af9035_fc0012_config[] = {
1311         {
1312                 .i2c_address = 0x63,
1313                 .xtal_freq = FC_XTAL_36_MHZ,
1314                 .dual_master = true,
1315                 .loop_through = true,
1316                 .clock_out = true,
1317         }, {
1318                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1319                 .xtal_freq = FC_XTAL_36_MHZ,
1320                 .dual_master = true,
1321         }
1322 };
1323
1324 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1325 {
1326         struct state *state = adap_to_priv(adap);
1327         struct dvb_usb_device *d = adap_to_d(adap);
1328         struct usb_interface *intf = d->intf;
1329         int ret;
1330         struct dvb_frontend *fe;
1331         struct i2c_msg msg[1];
1332         u8 tuner_addr;
1333
1334         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1335
1336         /*
1337          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1338          * to carry info about used I2C bus for dual tuner configuration.
1339          */
1340
1341         switch (state->af9033_config[adap->id].tuner) {
1342         case AF9033_TUNER_TUA9001: {
1343                 struct tua9001_platform_data tua9001_pdata = {
1344                         .dvb_frontend = adap->fe[0],
1345                 };
1346
1347                 /*
1348                  * AF9035 gpiot3 = TUA9001 RESETN
1349                  * AF9035 gpiot2 = TUA9001 RXEN
1350                  */
1351
1352                 /* configure gpiot2 and gpiot2 as output */
1353                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1354                 if (ret < 0)
1355                         goto err;
1356
1357                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1358                 if (ret < 0)
1359                         goto err;
1360
1361                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1362                 if (ret < 0)
1363                         goto err;
1364
1365                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1366                 if (ret < 0)
1367                         goto err;
1368
1369                 /* attach tuner */
1370                 ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1371                                          &d->i2c_adap);
1372                 if (ret)
1373                         goto err;
1374
1375                 fe = adap->fe[0];
1376                 break;
1377         }
1378         case AF9033_TUNER_FC0011:
1379                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1380                                 &d->i2c_adap, &af9035_fc0011_config);
1381                 break;
1382         case AF9033_TUNER_MXL5007T:
1383                 if (adap->id == 0) {
1384                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1385                         if (ret < 0)
1386                                 goto err;
1387
1388                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1389                         if (ret < 0)
1390                                 goto err;
1391
1392                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1393                         if (ret < 0)
1394                                 goto err;
1395
1396                         msleep(30);
1397
1398                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1399                         if (ret < 0)
1400                                 goto err;
1401
1402                         msleep(300);
1403
1404                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1405                         if (ret < 0)
1406                                 goto err;
1407
1408                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1409                         if (ret < 0)
1410                                 goto err;
1411
1412                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1413                         if (ret < 0)
1414                                 goto err;
1415
1416                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1417                         if (ret < 0)
1418                                 goto err;
1419
1420                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1421                         if (ret < 0)
1422                                 goto err;
1423
1424                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1425                         if (ret < 0)
1426                                 goto err;
1427
1428                         tuner_addr = 0x60;
1429                 } else {
1430                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1431                 }
1432
1433                 /* attach tuner */
1434                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1435                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1436                 break;
1437         case AF9033_TUNER_TDA18218:
1438                 /* attach tuner */
1439                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1440                                 &d->i2c_adap, &af9035_tda18218_config);
1441                 break;
1442         case AF9033_TUNER_FC2580: {
1443                 struct fc2580_platform_data fc2580_pdata = {
1444                         .dvb_frontend = adap->fe[0],
1445                 };
1446
1447                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1448                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1449                 if (ret < 0)
1450                         goto err;
1451
1452                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1453                 if (ret < 0)
1454                         goto err;
1455
1456                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1457                 if (ret < 0)
1458                         goto err;
1459
1460                 usleep_range(10000, 50000);
1461                 /* attach tuner */
1462                 ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1463                                          &d->i2c_adap);
1464                 if (ret)
1465                         goto err;
1466
1467                 fe = adap->fe[0];
1468                 break;
1469         }
1470         case AF9033_TUNER_FC0012:
1471                 /*
1472                  * AF9035 gpiot2 = FC0012 enable
1473                  * XXX: there seems to be something on gpioh8 too, but on my
1474                  * my test I didn't find any difference.
1475                  */
1476
1477                 if (adap->id == 0) {
1478                         /* configure gpiot2 as output and high */
1479                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1480                         if (ret < 0)
1481                                 goto err;
1482
1483                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1484                         if (ret < 0)
1485                                 goto err;
1486
1487                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1488                         if (ret < 0)
1489                                 goto err;
1490                 } else {
1491                         /*
1492                          * FIXME: That belongs for the FC0012 driver.
1493                          * Write 02 to FC0012 master tuner register 0d directly
1494                          * in order to make slave tuner working.
1495                          */
1496                         msg[0].addr = 0x63;
1497                         msg[0].flags = 0;
1498                         msg[0].len = 2;
1499                         msg[0].buf = "\x0d\x02";
1500                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1501                         if (ret < 0)
1502                                 goto err;
1503                 }
1504
1505                 usleep_range(10000, 50000);
1506
1507                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1508                                 &af9035_fc0012_config[adap->id]);
1509                 break;
1510         case AF9033_TUNER_IT9135_38:
1511         case AF9033_TUNER_IT9135_51:
1512         case AF9033_TUNER_IT9135_52:
1513         {
1514                 struct it913x_config it913x_config = {
1515                         .fe = adap->fe[0],
1516                         .chip_ver = 1,
1517                 };
1518
1519                 if (state->dual_mode) {
1520                         if (adap->id == 0)
1521                                 it913x_config.role = IT913X_ROLE_DUAL_MASTER;
1522                         else
1523                                 it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
1524                 }
1525
1526                 ret = af9035_add_i2c_dev(d, "it913x",
1527                                 state->af9033_i2c_addr[adap->id] >> 1,
1528                                 &it913x_config, &d->i2c_adap);
1529                 if (ret)
1530                         goto err;
1531
1532                 fe = adap->fe[0];
1533                 break;
1534         }
1535         case AF9033_TUNER_IT9135_60:
1536         case AF9033_TUNER_IT9135_61:
1537         case AF9033_TUNER_IT9135_62:
1538         {
1539                 struct it913x_config it913x_config = {
1540                         .fe = adap->fe[0],
1541                         .chip_ver = 2,
1542                 };
1543
1544                 if (state->dual_mode) {
1545                         if (adap->id == 0)
1546                                 it913x_config.role = IT913X_ROLE_DUAL_MASTER;
1547                         else
1548                                 it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
1549                 }
1550
1551                 ret = af9035_add_i2c_dev(d, "it913x",
1552                                 state->af9033_i2c_addr[adap->id] >> 1,
1553                                 &it913x_config, &d->i2c_adap);
1554                 if (ret)
1555                         goto err;
1556
1557                 fe = adap->fe[0];
1558                 break;
1559         }
1560         default:
1561                 fe = NULL;
1562         }
1563
1564         if (fe == NULL) {
1565                 ret = -ENODEV;
1566                 goto err;
1567         }
1568
1569         return 0;
1570
1571 err:
1572         dev_dbg(&intf->dev, "failed=%d\n", ret);
1573
1574         return ret;
1575 }
1576
1577 static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1578 {
1579         struct state *state = adap_to_priv(adap);
1580         struct dvb_usb_device *d = adap_to_d(adap);
1581         struct usb_interface *intf = d->intf;
1582         int ret;
1583         struct si2157_config si2157_config;
1584
1585         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1586
1587         /* I2C master bus 2 clock speed 300k */
1588         ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
1589         if (ret < 0)
1590                 goto err;
1591
1592         /* I2C master bus 1,3 clock speed 300k */
1593         ret = af9035_wr_reg(d, 0x00f103, 0x07);
1594         if (ret < 0)
1595                 goto err;
1596
1597         /* set gpio11 low */
1598         ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1599         if (ret < 0)
1600                 goto err;
1601
1602         ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1603         if (ret < 0)
1604                 goto err;
1605
1606         ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1607         if (ret < 0)
1608                 goto err;
1609
1610         /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1611         ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1612         if (ret < 0)
1613                 goto err;
1614
1615         ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1616         if (ret < 0)
1617                 goto err;
1618
1619         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1620         if (ret < 0)
1621                 goto err;
1622
1623         msleep(200);
1624
1625         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1626         if (ret < 0)
1627                 goto err;
1628
1629         memset(&si2157_config, 0, sizeof(si2157_config));
1630         si2157_config.fe = adap->fe[0];
1631         si2157_config.if_port = 1;
1632         ret = af9035_add_i2c_dev(d, "si2157", 0x63,
1633                         &si2157_config, state->i2c_adapter_demod);
1634
1635         if (ret)
1636                 goto err;
1637
1638         return 0;
1639
1640 err:
1641         dev_dbg(&intf->dev, "failed=%d\n", ret);
1642
1643         return ret;
1644 }
1645
1646
1647 static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1648 {
1649         struct state *state = adap_to_priv(adap);
1650         struct dvb_usb_device *d = adap_to_d(adap);
1651         struct usb_interface *intf = d->intf;
1652
1653         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1654
1655         if (adap->id == 1) {
1656                 if (state->i2c_client[3])
1657                         af9035_del_i2c_dev(d);
1658         } else if (adap->id == 0) {
1659                 if (state->i2c_client[1])
1660                         af9035_del_i2c_dev(d);
1661         }
1662
1663         return 0;
1664 }
1665
1666
1667 static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1668 {
1669         struct state *state = adap_to_priv(adap);
1670         struct dvb_usb_device *d = adap_to_d(adap);
1671         struct usb_interface *intf = d->intf;
1672
1673         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1674
1675         switch (state->af9033_config[adap->id].tuner) {
1676         case AF9033_TUNER_TUA9001:
1677         case AF9033_TUNER_FC2580:
1678         case AF9033_TUNER_IT9135_38:
1679         case AF9033_TUNER_IT9135_51:
1680         case AF9033_TUNER_IT9135_52:
1681         case AF9033_TUNER_IT9135_60:
1682         case AF9033_TUNER_IT9135_61:
1683         case AF9033_TUNER_IT9135_62:
1684                 if (adap->id == 1) {
1685                         if (state->i2c_client[3])
1686                                 af9035_del_i2c_dev(d);
1687                 } else if (adap->id == 0) {
1688                         if (state->i2c_client[1])
1689                                 af9035_del_i2c_dev(d);
1690                 }
1691         }
1692
1693         return 0;
1694 }
1695
1696 static int af9035_init(struct dvb_usb_device *d)
1697 {
1698         struct state *state = d_to_priv(d);
1699         struct usb_interface *intf = d->intf;
1700         int ret, i;
1701         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1702         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1703         struct reg_val_mask tab[] = {
1704                 { 0x80f99d, 0x01, 0x01 },
1705                 { 0x80f9a4, 0x01, 0x01 },
1706                 { 0x00dd11, 0x00, 0x20 },
1707                 { 0x00dd11, 0x00, 0x40 },
1708                 { 0x00dd13, 0x00, 0x20 },
1709                 { 0x00dd13, 0x00, 0x40 },
1710                 { 0x00dd11, 0x20, 0x20 },
1711                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1712                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1713                 { 0x00dd0c, packet_size, 0xff},
1714                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1715                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1716                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1717                 { 0x00dd0d, packet_size, 0xff },
1718                 { 0x80f9a3, state->dual_mode, 0x01 },
1719                 { 0x80f9cd, state->dual_mode, 0x01 },
1720                 { 0x80f99d, 0x00, 0x01 },
1721                 { 0x80f9a4, 0x00, 0x01 },
1722         };
1723
1724         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1725                 d->udev->speed, frame_size, packet_size);
1726
1727         /* init endpoints */
1728         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1729                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1730                                 tab[i].mask);
1731                 if (ret < 0)
1732                         goto err;
1733         }
1734
1735         return 0;
1736
1737 err:
1738         dev_dbg(&intf->dev, "failed=%d\n", ret);
1739
1740         return ret;
1741 }
1742
1743 static int it930x_init(struct dvb_usb_device *d)
1744 {
1745         struct state *state = d_to_priv(d);
1746         struct usb_interface *intf = d->intf;
1747         int ret, i;
1748         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4;
1749         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1750         struct reg_val_mask tab[] = {
1751                 { 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */
1752                 { 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */
1753                 { 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */
1754                 { 0x00f41a, 0x01, 0x01 }, /* dvbt_en */
1755                 { 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */
1756                 { 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */
1757                 { 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */
1758                 { 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */
1759                 { 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */
1760                 { 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */
1761                 { 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */
1762                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1763                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1764                 { 0x00dd0c, packet_size, 0xff},
1765                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1766                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1767                 { 0x00dd0d, packet_size, 0xff },
1768                 { 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */
1769                 { 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */
1770                 { 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */
1771                 { 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */
1772                 { 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */
1773
1774                 /* suspend gpio1 for TS-C */
1775                 { 0x00d8b0, 0x01, 0xff }, /* gpio1 */
1776                 { 0x00d8b1, 0x01, 0xff }, /* gpio1 */
1777                 { 0x00d8af, 0x00, 0xff }, /* gpio1 */
1778
1779                 /* suspend gpio7 for TS-D */
1780                 { 0x00d8c4, 0x01, 0xff }, /* gpio7 */
1781                 { 0x00d8c5, 0x01, 0xff }, /* gpio7 */
1782                 { 0x00d8c3, 0x00, 0xff }, /* gpio7 */
1783
1784                 /* suspend gpio13 for TS-B */
1785                 { 0x00d8dc, 0x01, 0xff }, /* gpio13 */
1786                 { 0x00d8dd, 0x01, 0xff }, /* gpio13 */
1787                 { 0x00d8db, 0x00, 0xff }, /* gpio13 */
1788
1789                 /* suspend gpio14 for TS-E */
1790                 { 0x00d8e4, 0x01, 0xff }, /* gpio14 */
1791                 { 0x00d8e5, 0x01, 0xff }, /* gpio14 */
1792                 { 0x00d8e3, 0x00, 0xff }, /* gpio14 */
1793
1794                 /* suspend gpio15 for TS-A */
1795                 { 0x00d8e8, 0x01, 0xff }, /* gpio15 */
1796                 { 0x00d8e9, 0x01, 0xff }, /* gpio15 */
1797                 { 0x00d8e7, 0x00, 0xff }, /* gpio15 */
1798
1799                 { 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */
1800                 { 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */
1801                 { 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */
1802                 { 0x00da4c, 0x01, 0xff }, /* ts0_en */
1803                 { 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */
1804         };
1805
1806         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1807                 d->udev->speed, frame_size, packet_size);
1808
1809         /* init endpoints */
1810         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1811                 ret = af9035_wr_reg_mask(d, tab[i].reg,
1812                                 tab[i].val, tab[i].mask);
1813
1814                 if (ret < 0)
1815                         goto err;
1816         }
1817
1818         return 0;
1819 err:
1820         dev_dbg(&intf->dev, "failed=%d\n", ret);
1821
1822         return ret;
1823 }
1824
1825
1826 #if IS_ENABLED(CONFIG_RC_CORE)
1827 static int af9035_rc_query(struct dvb_usb_device *d)
1828 {
1829         struct usb_interface *intf = d->intf;
1830         int ret;
1831         enum rc_type proto;
1832         u32 key;
1833         u8 buf[4];
1834         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1835
1836         ret = af9035_ctrl_msg(d, &req);
1837         if (ret == 1)
1838                 return 0;
1839         else if (ret < 0)
1840                 goto err;
1841
1842         if ((buf[2] + buf[3]) == 0xff) {
1843                 if ((buf[0] + buf[1]) == 0xff) {
1844                         /* NEC standard 16bit */
1845                         key = RC_SCANCODE_NEC(buf[0], buf[2]);
1846                         proto = RC_TYPE_NEC;
1847                 } else {
1848                         /* NEC extended 24bit */
1849                         key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1850                         proto = RC_TYPE_NECX;
1851                 }
1852         } else {
1853                 /* NEC full code 32bit */
1854                 key = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1855                                         buf[2] << 8  | buf[3]);
1856                 proto = RC_TYPE_NEC32;
1857         }
1858
1859         dev_dbg(&intf->dev, "%*ph\n", 4, buf);
1860
1861         rc_keydown(d->rc_dev, proto, key, 0);
1862
1863         return 0;
1864
1865 err:
1866         dev_dbg(&intf->dev, "failed=%d\n", ret);
1867
1868         return ret;
1869 }
1870
1871 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1872 {
1873         struct state *state = d_to_priv(d);
1874         struct usb_interface *intf = d->intf;
1875         int ret;
1876         u8 tmp;
1877
1878         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_MODE, &tmp);
1879         if (ret < 0)
1880                 goto err;
1881
1882         dev_dbg(&intf->dev, "ir_mode=%02x\n", tmp);
1883
1884         /* don't activate rc if in HID mode or if not available */
1885         if (tmp == 5) {
1886                 ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_TYPE,
1887                                 &tmp);
1888                 if (ret < 0)
1889                         goto err;
1890
1891                 dev_dbg(&intf->dev, "ir_type=%02x\n", tmp);
1892
1893                 switch (tmp) {
1894                 case 0: /* NEC */
1895                 default:
1896                         rc->allowed_protos = RC_BIT_NEC | RC_BIT_NECX |
1897                                                                 RC_BIT_NEC32;
1898                         break;
1899                 case 1: /* RC6 */
1900                         rc->allowed_protos = RC_BIT_RC6_MCE;
1901                         break;
1902                 }
1903
1904                 rc->query = af9035_rc_query;
1905                 rc->interval = 500;
1906
1907                 /* load empty to enable rc */
1908                 if (!rc->map_name)
1909                         rc->map_name = RC_MAP_EMPTY;
1910         }
1911
1912         return 0;
1913
1914 err:
1915         dev_dbg(&intf->dev, "failed=%d\n", ret);
1916
1917         return ret;
1918 }
1919 #else
1920         #define af9035_get_rc_config NULL
1921 #endif
1922
1923 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1924                 struct usb_data_stream_properties *stream)
1925 {
1926         struct dvb_usb_device *d = fe_to_d(fe);
1927         struct usb_interface *intf = d->intf;
1928
1929         dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1930
1931         if (d->udev->speed == USB_SPEED_FULL)
1932                 stream->u.bulk.buffersize = 5 * 188;
1933
1934         return 0;
1935 }
1936
1937 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1938 {
1939         struct state *state = adap_to_priv(adap);
1940
1941         return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1942 }
1943
1944 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1945                 int onoff)
1946 {
1947         struct state *state = adap_to_priv(adap);
1948
1949         return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1950 }
1951
1952 static int af9035_probe(struct usb_interface *intf,
1953                 const struct usb_device_id *id)
1954 {
1955         struct usb_device *udev = interface_to_usbdev(intf);
1956         char manufacturer[sizeof("Afatech")];
1957
1958         memset(manufacturer, 0, sizeof(manufacturer));
1959         usb_string(udev, udev->descriptor.iManufacturer,
1960                         manufacturer, sizeof(manufacturer));
1961         /*
1962          * There is two devices having same ID but different chipset. One uses
1963          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1964          * is iManufacturer string.
1965          *
1966          * idVendor           0x0ccd TerraTec Electronic GmbH
1967          * idProduct          0x0099
1968          * bcdDevice            2.00
1969          * iManufacturer           1 Afatech
1970          * iProduct                2 DVB-T 2
1971          *
1972          * idVendor           0x0ccd TerraTec Electronic GmbH
1973          * idProduct          0x0099
1974          * bcdDevice            2.00
1975          * iManufacturer           1 ITE Technologies, Inc.
1976          * iProduct                2 DVB-T TV Stick
1977          */
1978         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1979                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1980                 if (!strcmp("Afatech", manufacturer)) {
1981                         dev_dbg(&udev->dev, "rejecting device\n");
1982                         return -ENODEV;
1983                 }
1984         }
1985
1986         return dvb_usbv2_probe(intf, id);
1987 }
1988
1989 /* interface 0 is used by DVB-T receiver and
1990    interface 1 is for remote controller (HID) */
1991 static const struct dvb_usb_device_properties af9035_props = {
1992         .driver_name = KBUILD_MODNAME,
1993         .owner = THIS_MODULE,
1994         .adapter_nr = adapter_nr,
1995         .size_of_priv = sizeof(struct state),
1996
1997         .generic_bulk_ctrl_endpoint = 0x02,
1998         .generic_bulk_ctrl_endpoint_response = 0x81,
1999
2000         .identify_state = af9035_identify_state,
2001         .download_firmware = af9035_download_firmware,
2002
2003         .i2c_algo = &af9035_i2c_algo,
2004         .read_config = af9035_read_config,
2005         .frontend_attach = af9035_frontend_attach,
2006         .frontend_detach = af9035_frontend_detach,
2007         .tuner_attach = af9035_tuner_attach,
2008         .tuner_detach = af9035_tuner_detach,
2009         .init = af9035_init,
2010         .get_rc_config = af9035_get_rc_config,
2011         .get_stream_config = af9035_get_stream_config,
2012
2013         .get_adapter_count = af9035_get_adapter_count,
2014         .adapter = {
2015                 {
2016                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2017                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2018
2019                         .pid_filter_count = 32,
2020                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2021                         .pid_filter = af9035_pid_filter,
2022
2023                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2024                 }, {
2025                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2026                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2027
2028                         .pid_filter_count = 32,
2029                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2030                         .pid_filter = af9035_pid_filter,
2031
2032                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2033                 },
2034         },
2035 };
2036
2037 static const struct dvb_usb_device_properties it930x_props = {
2038         .driver_name = KBUILD_MODNAME,
2039         .owner = THIS_MODULE,
2040         .adapter_nr = adapter_nr,
2041         .size_of_priv = sizeof(struct state),
2042
2043         .generic_bulk_ctrl_endpoint = 0x02,
2044         .generic_bulk_ctrl_endpoint_response = 0x81,
2045
2046         .identify_state = af9035_identify_state,
2047         .download_firmware = af9035_download_firmware,
2048
2049         .i2c_algo = &af9035_i2c_algo,
2050         .read_config = af9035_read_config,
2051         .frontend_attach = it930x_frontend_attach,
2052         .frontend_detach = af9035_frontend_detach,
2053         .tuner_attach = it930x_tuner_attach,
2054         .tuner_detach = it930x_tuner_detach,
2055         .init = it930x_init,
2056         .get_stream_config = af9035_get_stream_config,
2057
2058         .get_adapter_count = af9035_get_adapter_count,
2059         .adapter = {
2060                 {
2061                         .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2062                 }, {
2063                         .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2064                 },
2065         },
2066 };
2067
2068 static const struct usb_device_id af9035_id_table[] = {
2069         /* AF9035 devices */
2070         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2071                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2072         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2073                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2074         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2075                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2076         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2077                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2078         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2079                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2080         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2081                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
2082         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2083                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2084         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2085                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2086         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2087                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2088         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2089                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2090         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2091                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2092         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2093                 &af9035_props, "Asus U3100Mini Plus", NULL) },
2094         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2095                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2096         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2097                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2098
2099         /* IT9135 devices */
2100         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2101                 &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2102         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2103                 &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2104         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2105                 &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2106         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2107                 &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2108         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2109                 &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2110         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2111                 &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2112         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2113                 &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
2114         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2115                 &af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2116         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2117                 &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2118         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2119                 &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2120         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2121                 &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2122                                                         RC_MAP_IT913X_V1) },
2123         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2124                 &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2125                                                         RC_MAP_IT913X_V1) },
2126         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2127         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2128                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2129                 NULL) },
2130         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2131                 &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2132         { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2133                 &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2134         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2135                 &af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2136         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2137                 &af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2138
2139         /* IT930x devices */
2140         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2141                 &it930x_props, "ITE 9303 Generic", NULL) },
2142         { }
2143 };
2144 MODULE_DEVICE_TABLE(usb, af9035_id_table);
2145
2146 static struct usb_driver af9035_usb_driver = {
2147         .name = KBUILD_MODNAME,
2148         .id_table = af9035_id_table,
2149         .probe = af9035_probe,
2150         .disconnect = dvb_usbv2_disconnect,
2151         .suspend = dvb_usbv2_suspend,
2152         .resume = dvb_usbv2_resume,
2153         .reset_resume = dvb_usbv2_reset_resume,
2154         .no_dynamic_id = 1,
2155         .soft_unbind = 1,
2156 };
2157
2158 module_usb_driver(af9035_usb_driver);
2159
2160 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2161 MODULE_DESCRIPTION("Afatech AF9035 driver");
2162 MODULE_LICENSE("GPL");
2163 /*(DEBLOBBED)*/