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 = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
 410                                                                  &msg[0].buf[3],
 411                                                                  msg[0].len - 3)
 412                                                 : -EOPNOTSUPP;
 413                 } else {
 414                         /* I2C write */
 415                         u8 buf[MAX_XFER_SIZE];
 416                         struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 417                                         buf, 0, NULL };
 418
 419                         if (state->chip_type == 0x9306) {
 420                                 req.cmd = CMD_GENERIC_I2C_WR;
 421                                 req.wlen = 3 + msg[0].len;
 422                         }
 423
 424                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 425                         buf[0] = msg[0].len;
 426                         if (state->chip_type == 0x9306) {
 427                                 buf[1] = 0x03; /* I2C bus */
 428                                 buf[2] = msg[0].addr << 1;
 429                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 430                         } else {
 431                                 buf[1] = msg[0].addr << 1;
 432                                 buf[2] = 0x00; /* reg addr len */
 433                                 buf[3] = 0x00; /* reg addr MSB */
 434                                 buf[4] = 0x00; /* reg addr LSB */
 435                                 memcpy(&buf[5], msg[0].buf, msg[0].len);
 436                         }
 437                         ret = af9035_ctrl_msg(d, &req);
 438                 }
 439         } else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
 440                 if (msg[0].len > 40) {
 441                         /* TODO: correct limits > 40 */
 442                         ret = -EOPNOTSUPP;
 443                 } else if (state->no_read) {
 444                         memset(msg[0].buf, 0, msg[0].len);
 445                         ret = 0;
 446                 } else {
 447                         /* I2C read */
 448                         u8 buf[5];
 449                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 450                                                 buf, msg[0].len, msg[0].buf };
 451
 452                         if (state->chip_type == 0x9306) {
 453                                 req.cmd = CMD_GENERIC_I2C_RD;
 454                                 req.wlen = 3;
 455                         }
 456                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 457                         buf[0] = msg[0].len;
 458                         if (state->chip_type == 0x9306) {
 459                                 buf[1] = 0x03; /* I2C bus */
 460                                 buf[2] = msg[0].addr << 1;
 461                         } else {
 462                                 buf[1] = msg[0].addr << 1;
 463                                 buf[2] = 0x00; /* reg addr len */
 464                                 buf[3] = 0x00; /* reg addr MSB */
 465                                 buf[4] = 0x00; /* reg addr LSB */
 466                         }
 467                         ret = af9035_ctrl_msg(d, &req);
 468                 }
 469         } else {
 470                 /*
 471                  * We support only three kind of I2C transactions:
 472                  * 1) 1 x write + 1 x read (repeated start)
 473                  * 2) 1 x write
 474                  * 3) 1 x read
 475                  */
 476                 ret = -EOPNOTSUPP;
 477         }
 478
 479         mutex_unlock(&d->i2c_mutex);
 480
 481         if (ret < 0)
 482                 return ret;
 483         else
 484                 return num;
 485 }
 486
 487 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 488 {
 489         return I2C_FUNC_I2C;
 490 }
 491
 492 static struct i2c_algorithm af9035_i2c_algo = {
 493         .master_xfer = af9035_i2c_master_xfer,
 494         .functionality = af9035_i2c_functionality,
 495 };
 496
 497 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 498 {
 499         struct state *state = d_to_priv(d);
 500         struct usb_interface *intf = d->intf;
 501         int ret, ts_mode_invalid;
 502         u8 tmp;
 503         u8 wbuf[1] = { 1 };
 504         u8 rbuf[4];
 505         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 506                         sizeof(rbuf), rbuf };
 507
 508         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 509         if (ret < 0)
 510                 goto err;
 511
 512         state->chip_version = rbuf[0];
 513         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 514
 515         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 516         if (ret < 0)
 517                 goto err;
 518
 519         dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 520                  state->prechip_version, state->chip_version, state->chip_type);
 521
 522         if (state->chip_type == 0x9135) {
 523                 if (state->chip_version == 0x02)
 524                         *name = AF9035_FIRMWARE_IT9135_V2;
 525                 else
 526                         *name = AF9035_FIRMWARE_IT9135_V1;
 527                 state->eeprom_addr = EEPROM_BASE_IT9135;
 528         } else if (state->chip_type == 0x9306) {
 529                 *name = AF9035_FIRMWARE_IT9303;
 530                 state->eeprom_addr = EEPROM_BASE_IT9135;
 531         } else {
 532                 *name = AF9035_FIRMWARE_AF9035;
 533                 state->eeprom_addr = EEPROM_BASE_AF9035;
 534         }
 535
 536
 537         /* check for dual tuner mode */
 538         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp);
 539         if (ret < 0)
 540                 goto err;
 541
 542         ts_mode_invalid = 0;
 543         switch (tmp) {
 544         case 0:
 545                 break;
 546         case 1:
 547         case 3:
 548                 state->dual_mode = true;
 549                 break;
 550         case 5:
 551                 if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
 552                         state->dual_mode = true;        /* AF9035 */
 553                 else
 554                         ts_mode_invalid = 1;
 555                 break;
 556         default:
 557                 ts_mode_invalid = 1;
 558         }
 559
 560         dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
 561
 562         if (ts_mode_invalid)
 563                 dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 564
 565
 566         ret = af9035_ctrl_msg(d, &req);
 567         if (ret < 0)
 568                 goto err;
 569
 570         dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
 571         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 572                 ret = WARM;
 573         else
 574                 ret = COLD;
 575
 576         return ret;
 577
 578 err:
 579         dev_dbg(&intf->dev, "failed=%d\n", ret);
 580
 581         return ret;
 582 }
 583
 584 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 585                 const struct firmware *fw)
 586 {
 587         struct usb_interface *intf = d->intf;
 588         int ret, i, j, len;
 589         u8 wbuf[1];
 590         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 591         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 592         u8 hdr_core;
 593         u16 hdr_addr, hdr_data_len, hdr_checksum;
 594         #define MAX_DATA 58
 595         #define HDR_SIZE 7
 596
 597         /*
 598          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 599          *
 600          * byte 0: MCS 51 core
 601          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 602          *  address spaces
 603          * byte 1-2: Big endian destination address
 604          * byte 3-4: Big endian number of data bytes following the header
 605          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 606          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 607          */
 608
 609         for (i = fw->size; i > HDR_SIZE;) {
 610                 hdr_core = fw->data[fw->size - i + 0];
 611                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 612                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 613                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 614                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 615                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 616                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 617
 618                 dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
 619                         hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
 620
 621                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 622                                 (hdr_data_len > i)) {
 623                         dev_dbg(&intf->dev, "bad firmware\n");
 624                         break;
 625                 }
 626
 627                 /* download begin packet */
 628                 req.cmd = CMD_FW_DL_BEGIN;
 629                 ret = af9035_ctrl_msg(d, &req);
 630                 if (ret < 0)
 631                         goto err;
 632
 633                 /* download firmware packet(s) */
 634                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 635                         len = j;
 636                         if (len > MAX_DATA)
 637                                 len = MAX_DATA;
 638                         req_fw_dl.wlen = len;
 639                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 640                                         HDR_SIZE + hdr_data_len - j];
 641                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 642                         if (ret < 0)
 643                                 goto err;
 644                 }
 645
 646                 /* download end packet */
 647                 req.cmd = CMD_FW_DL_END;
 648                 ret = af9035_ctrl_msg(d, &req);
 649                 if (ret < 0)
 650                         goto err;
 651
 652                 i -= hdr_data_len + HDR_SIZE;
 653
 654                 dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
 655         }
 656
 657         /* print warn if firmware is bad, continue and see what happens */
 658         if (i)
 659                 dev_warn(&intf->dev, "bad firmware\n");
 660
 661         return 0;
 662
 663 err:
 664         dev_dbg(&intf->dev, "failed=%d\n", ret);
 665
 666         return ret;
 667 }
 668
 669 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 670                 const struct firmware *fw)
 671 {
 672         struct usb_interface *intf = d->intf;
 673         int ret, i, i_prev;
 674         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 675         #define HDR_SIZE 7
 676
 677         /*
 678          * There seems to be following firmware header. Meaning of bytes 0-3
 679          * is unknown.
 680          *
 681          * 0: 3
 682          * 1: 0, 1
 683          * 2: 0
 684          * 3: 1, 2, 3
 685          * 4: addr MSB
 686          * 5: addr LSB
 687          * 6: count of data bytes ?
 688          */
 689         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 690                 if (i == fw->size ||
 691                                 (fw->data[i + 0] == 0x03 &&
 692                                 (fw->data[i + 1] == 0x00 ||
 693                                 fw->data[i + 1] == 0x01) &&
 694                                 fw->data[i + 2] == 0x00)) {
 695                         req_fw_dl.wlen = i - i_prev;
 696                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 697                         i_prev = i;
 698                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 699                         if (ret < 0)
 700                                 goto err;
 701
 702                         dev_dbg(&intf->dev, "data uploaded=%d\n", i);
 703                 }
 704         }
 705
 706         return 0;
 707
 708 err:
 709         dev_dbg(&intf->dev, "failed=%d\n", ret);
 710
 711         return ret;
 712 }
 713
 714 static int af9035_download_firmware(struct dvb_usb_device *d,
 715                 const struct firmware *fw)
 716 {
 717         struct usb_interface *intf = d->intf;
 718         struct state *state = d_to_priv(d);
 719         int ret;
 720         u8 wbuf[1];
 721         u8 rbuf[4];
 722         u8 tmp;
 723         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 724         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 725
 726         dev_dbg(&intf->dev, "\n");
 727
 728         /*
 729          * In case of dual tuner configuration we need to do some extra
 730          * initialization in order to download firmware to slave demod too,
 731          * which is done by master demod.
 732          * Master feeds also clock and controls power via GPIO.
 733          */
 734         if (state->dual_mode) {
 735                 /* configure gpioh1, reset & power slave demod */
 736                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 737                 if (ret < 0)
 738                         goto err;
 739
 740                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 741                 if (ret < 0)
 742                         goto err;
 743
 744                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 745                 if (ret < 0)
 746                         goto err;
 747
 748                 usleep_range(10000, 50000);
 749
 750                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 751                 if (ret < 0)
 752                         goto err;
 753
 754                 /* tell the slave I2C address */
 755                 ret = af9035_rd_reg(d,
 756                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 757                                 &tmp);
 758                 if (ret < 0)
 759                         goto err;
 760
 761                 /* use default I2C address if eeprom has no address set */
 762                 if (!tmp)
 763                         tmp = 0x3a;
 764
 765                 if ((state->chip_type == 0x9135) ||
 766                                 (state->chip_type == 0x9306)) {
 767                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 768                         if (ret < 0)
 769                                 goto err;
 770                 } else {
 771                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 772                         if (ret < 0)
 773                                 goto err;
 774
 775                         /* enable clock out */
 776                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 777                         if (ret < 0)
 778                                 goto err;
 779                 }
 780         }
 781
 782         if (fw->data[0] == 0x01)
 783                 ret = af9035_download_firmware_old(d, fw);
 784         else
 785                 ret = af9035_download_firmware_new(d, fw);
 786         if (ret < 0)
 787                 goto err;
 788
 789         /* firmware loaded, request boot */
 790         req.cmd = CMD_FW_BOOT;
 791         ret = af9035_ctrl_msg(d, &req);
 792         if (ret < 0)
 793                 goto err;
 794
 795         /* ensure firmware starts */
 796         wbuf[0] = 1;
 797         ret = af9035_ctrl_msg(d, &req_fw_ver);
 798         if (ret < 0)
 799                 goto err;
 800
 801         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 802                 dev_err(&intf->dev, "firmware did not run\n");
 803                 ret = -ENODEV;
 804                 goto err;
 805         }
 806
 807         dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
 808                  rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 809
 810         return 0;
 811
 812 err:
 813         dev_dbg(&intf->dev, "failed=%d\n", ret);
 814
 815         return ret;
 816 }
 817
 818 static int af9035_read_config(struct dvb_usb_device *d)
 819 {
 820         struct usb_interface *intf = d->intf;
 821         struct state *state = d_to_priv(d);
 822         int ret, i;
 823         u8 tmp;
 824         u16 tmp16, addr;
 825
 826         /* demod I2C "address" */
 827         state->af9033_i2c_addr[0] = 0x38;
 828         state->af9033_i2c_addr[1] = 0x3a;
 829         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 830         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 831         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 832         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 833
 834         if (state->chip_type == 0x9135) {
 835                 /* feed clock for integrated RF tuner */
 836                 state->af9033_config[0].dyn0_clk = true;
 837                 state->af9033_config[1].dyn0_clk = true;
 838
 839                 if (state->chip_version == 0x02) {
 840                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 841                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 842                         tmp16 = 0x00461d; /* eeprom memory mapped location */
 843                 } else {
 844                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 845                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 846                         tmp16 = 0x00461b; /* eeprom memory mapped location */
 847                 }
 848
 849                 /* check if eeprom exists */
 850                 ret = af9035_rd_reg(d, tmp16, &tmp);
 851                 if (ret < 0)
 852                         goto err;
 853
 854                 if (tmp == 0x00) {
 855                         dev_dbg(&intf->dev, "no eeprom\n");
 856                         goto skip_eeprom;
 857                 }
 858         } else if (state->chip_type == 0x9306) {
 859                 /*
 860                  * IT930x is an USB bridge, only single demod-single tuner
 861                  * configurations seen so far.
 862                  */
 863                 return 0;
 864         }
 865
 866
 867         if (state->dual_mode) {
 868                 /* read 2nd demodulator I2C address */
 869                 ret = af9035_rd_reg(d,
 870                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 871                                 &tmp);
 872                 if (ret < 0)
 873                         goto err;
 874
 875                 if (tmp)
 876                         state->af9033_i2c_addr[1] = tmp;
 877
 878                 dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n", tmp);
 879         }
 880
 881         addr = state->eeprom_addr;
 882
 883         for (i = 0; i < state->dual_mode + 1; i++) {
 884                 /* tuner */
 885                 ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
 886                 if (ret < 0)
 887                         goto err;
 888
 889                 dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 890
 891                 /* tuner sanity check */
 892                 if (state->chip_type == 0x9135) {
 893                         if (state->chip_version == 0x02) {
 894                                 /* IT9135 BX (v2) */
 895                                 switch (tmp) {
 896                                 case AF9033_TUNER_IT9135_60:
 897                                 case AF9033_TUNER_IT9135_61:
 898                                 case AF9033_TUNER_IT9135_62:
 899                                         state->af9033_config[i].tuner = tmp;
 900                                         break;
 901                                 }
 902                         } else {
 903                                 /* IT9135 AX (v1) */
 904                                 switch (tmp) {
 905                                 case AF9033_TUNER_IT9135_38:
 906                                 case AF9033_TUNER_IT9135_51:
 907                                 case AF9033_TUNER_IT9135_52:
 908                                         state->af9033_config[i].tuner = tmp;
 909                                         break;
 910                                 }
 911                         }
 912                 } else {
 913                         /* AF9035 */
 914                         state->af9033_config[i].tuner = tmp;
 915                 }
 916
 917                 if (state->af9033_config[i].tuner != tmp) {
 918                         dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
 919                                  i, tmp, state->af9033_config[i].tuner);
 920                 }
 921
 922                 switch (state->af9033_config[i].tuner) {
 923                 case AF9033_TUNER_TUA9001:
 924                 case AF9033_TUNER_FC0011:
 925                 case AF9033_TUNER_MXL5007T:
 926                 case AF9033_TUNER_TDA18218:
 927                 case AF9033_TUNER_FC2580:
 928                 case AF9033_TUNER_FC0012:
 929                         state->af9033_config[i].spec_inv = 1;
 930                         break;
 931                 case AF9033_TUNER_IT9135_38:
 932                 case AF9033_TUNER_IT9135_51:
 933                 case AF9033_TUNER_IT9135_52:
 934                 case AF9033_TUNER_IT9135_60:
 935                 case AF9033_TUNER_IT9135_61:
 936                 case AF9033_TUNER_IT9135_62:
 937                         break;
 938                 default:
 939                         dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
 940                                  tmp);
 941                 }
 942
 943                 /* disable dual mode if driver does not support it */
 944                 if (i == 1)
 945                         switch (state->af9033_config[i].tuner) {
 946                         case AF9033_TUNER_FC0012:
 947                         case AF9033_TUNER_IT9135_38:
 948                         case AF9033_TUNER_IT9135_51:
 949                         case AF9033_TUNER_IT9135_52:
 950                         case AF9033_TUNER_IT9135_60:
 951                         case AF9033_TUNER_IT9135_61:
 952                         case AF9033_TUNER_IT9135_62:
 953                         case AF9033_TUNER_MXL5007T:
 954                                 break;
 955                         default:
 956                                 state->dual_mode = false;
 957                                 dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
 958                 }
 959
 960                 /* tuner IF frequency */
 961                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
 962                 if (ret < 0)
 963                         goto err;
 964
 965                 tmp16 = tmp;
 966
 967                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
 968                 if (ret < 0)
 969                         goto err;
 970
 971                 tmp16 |= tmp << 8;
 972
 973                 dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 974
 975                 addr += 0x10; /* shift for the 2nd tuner params */
 976         }
 977
 978 skip_eeprom:
 979         /* get demod clock */
 980         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 981         if (ret < 0)
 982                 goto err;
 983
 984         tmp = (tmp >> 0) & 0x0f;
 985
 986         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 987                 if (state->chip_type == 0x9135)
 988                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 989                 else
 990                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 991         }
 992
 993         state->no_read = false;
 994         /* Some MXL5007T devices cannot properly handle tuner I2C read ops. */
 995         if (state->af9033_config[0].tuner == AF9033_TUNER_MXL5007T &&
 996                 le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA)
 997
 998                 switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
 999                 case USB_PID_AVERMEDIA_A867:
1000                 case USB_PID_AVERMEDIA_TWINSTAR:
1001                         dev_info(&intf->dev,
1002                                  "Device may have issues with I2C read operations. Enabling fix.\n");
1003                         state->no_read = true;
1004                         break;
1005                 }
1006
1007         return 0;
1008
1009 err:
1010         dev_dbg(&intf->dev, "failed=%d\n", ret);
1011
1012         return ret;
1013 }
1014
1015 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
1016                 int cmd, int arg)
1017 {
1018         struct usb_interface *intf = d->intf;
1019         int ret;
1020         u8 val;
1021
1022         dev_dbg(&intf->dev, "cmd=%d arg=%d\n", cmd, arg);
1023
1024         /*
1025          * CEN     always enabled by hardware wiring
1026          * RESETN  GPIOT3
1027          * RXEN    GPIOT2
1028          */
1029
1030         switch (cmd) {
1031         case TUA9001_CMD_RESETN:
1032                 if (arg)
1033                         val = 0x00;
1034                 else
1035                         val = 0x01;
1036
1037                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
1038                 if (ret < 0)
1039                         goto err;
1040                 break;
1041         case TUA9001_CMD_RXEN:
1042                 if (arg)
1043                         val = 0x01;
1044                 else
1045                         val = 0x00;
1046
1047                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
1048                 if (ret < 0)
1049                         goto err;
1050                 break;
1051         }
1052
1053         return 0;
1054
1055 err:
1056         dev_dbg(&intf->dev, "failed=%d\n", ret);
1057
1058         return ret;
1059 }
1060
1061
1062 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
1063                 int cmd, int arg)
1064 {
1065         struct usb_interface *intf = d->intf;
1066         int ret;
1067
1068         switch (cmd) {
1069         case FC0011_FE_CALLBACK_POWER:
1070                 /* Tuner enable */
1071                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
1072                 if (ret < 0)
1073                         goto err;
1074
1075                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
1076                 if (ret < 0)
1077                         goto err;
1078
1079                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
1080                 if (ret < 0)
1081                         goto err;
1082
1083                 /* LED */
1084                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
1085                 if (ret < 0)
1086                         goto err;
1087
1088                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
1089                 if (ret < 0)
1090                         goto err;
1091
1092                 usleep_range(10000, 50000);
1093                 break;
1094         case FC0011_FE_CALLBACK_RESET:
1095                 ret = af9035_wr_reg(d, 0xd8e9, 1);
1096                 if (ret < 0)
1097                         goto err;
1098
1099                 ret = af9035_wr_reg(d, 0xd8e8, 1);
1100                 if (ret < 0)
1101                         goto err;
1102
1103                 ret = af9035_wr_reg(d, 0xd8e7, 1);
1104                 if (ret < 0)
1105                         goto err;
1106
1107                 usleep_range(10000, 20000);
1108
1109                 ret = af9035_wr_reg(d, 0xd8e7, 0);
1110                 if (ret < 0)
1111                         goto err;
1112
1113                 usleep_range(10000, 20000);
1114                 break;
1115         default:
1116                 ret = -EINVAL;
1117                 goto err;
1118         }
1119
1120         return 0;
1121
1122 err:
1123         dev_dbg(&intf->dev, "failed=%d\n", ret);
1124
1125         return ret;
1126 }
1127
1128 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
1129 {
1130         struct state *state = d_to_priv(d);
1131
1132         switch (state->af9033_config[0].tuner) {
1133         case AF9033_TUNER_FC0011:
1134                 return af9035_fc0011_tuner_callback(d, cmd, arg);
1135         case AF9033_TUNER_TUA9001:
1136                 return af9035_tua9001_tuner_callback(d, cmd, arg);
1137         default:
1138                 break;
1139         }
1140
1141         return 0;
1142 }
1143
1144 static int af9035_frontend_callback(void *adapter_priv, int component,
1145                                     int cmd, int arg)
1146 {
1147         struct i2c_adapter *adap = adapter_priv;
1148         struct dvb_usb_device *d = i2c_get_adapdata(adap);
1149         struct usb_interface *intf = d->intf;
1150
1151         dev_dbg(&intf->dev, "component=%d cmd=%d arg=%d\n",
1152                 component, cmd, arg);
1153
1154         switch (component) {
1155         case DVB_FRONTEND_COMPONENT_TUNER:
1156                 return af9035_tuner_callback(d, cmd, arg);
1157         default:
1158                 break;
1159         }
1160
1161         return 0;
1162 }
1163
1164 static int af9035_get_adapter_count(struct dvb_usb_device *d)
1165 {
1166         struct state *state = d_to_priv(d);
1167
1168         return state->dual_mode + 1;
1169 }
1170
1171 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
1172 {
1173         struct state *state = adap_to_priv(adap);
1174         struct dvb_usb_device *d = adap_to_d(adap);
1175         struct usb_interface *intf = d->intf;
1176         int ret;
1177
1178         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1179
1180         if (!state->af9033_config[adap->id].tuner) {
1181                 /* unsupported tuner */
1182                 ret = -ENODEV;
1183                 goto err;
1184         }
1185
1186         state->af9033_config[adap->id].fe = &adap->fe[0];
1187         state->af9033_config[adap->id].ops = &state->ops;
1188         ret = af9035_add_i2c_dev(d, "af9033", state->af9033_i2c_addr[adap->id],
1189                         &state->af9033_config[adap->id], &d->i2c_adap);
1190         if (ret)
1191                 goto err;
1192
1193         if (adap->fe[0] == NULL) {
1194                 ret = -ENODEV;
1195                 goto err;
1196         }
1197
1198         /* disable I2C-gate */
1199         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
1200         adap->fe[0]->callback = af9035_frontend_callback;
1201
1202         return 0;
1203
1204 err:
1205         dev_dbg(&intf->dev, "failed=%d\n", ret);
1206
1207         return ret;
1208 }
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         memset(&si2168_config, 0, sizeof(si2168_config));
1222         si2168_config.i2c_adapter = &adapter;
1223         si2168_config.fe = &adap->fe[0];
1224         si2168_config.ts_mode = SI2168_TS_SERIAL;
1225
1226         state->af9033_config[adap->id].fe = &adap->fe[0];
1227         state->af9033_config[adap->id].ops = &state->ops;
1228         ret = af9035_add_i2c_dev(d, "si2168", 0x67, &si2168_config,
1229                                 &d->i2c_adap);
1230         if (ret)
1231                 goto err;
1232
1233         if (adap->fe[0] == NULL) {
1234                 ret = -ENODEV;
1235                 goto err;
1236         }
1237         state->i2c_adapter_demod = adapter;
1238
1239         return 0;
1240
1241 err:
1242         dev_dbg(&intf->dev, "failed=%d\n", ret);
1243
1244         return ret;
1245 }
1246
1247 static int af9035_frontend_detach(struct dvb_usb_adapter *adap)
1248 {
1249         struct state *state = adap_to_priv(adap);
1250         struct dvb_usb_device *d = adap_to_d(adap);
1251         struct usb_interface *intf = d->intf;
1252         int demod2;
1253
1254         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1255
1256         /*
1257          * For dual tuner devices we have to resolve 2nd demod client, as there
1258          * is two different kind of tuner drivers; one is using I2C binding
1259          * and the other is using DVB attach/detach binding.
1260          */
1261         switch (state->af9033_config[adap->id].tuner) {
1262         case AF9033_TUNER_IT9135_38:
1263         case AF9033_TUNER_IT9135_51:
1264         case AF9033_TUNER_IT9135_52:
1265         case AF9033_TUNER_IT9135_60:
1266         case AF9033_TUNER_IT9135_61:
1267         case AF9033_TUNER_IT9135_62:
1268                 demod2 = 2;
1269                 break;
1270         default:
1271                 demod2 = 1;
1272         }
1273
1274         if (adap->id == 1) {
1275                 if (state->i2c_client[demod2])
1276                         af9035_del_i2c_dev(d);
1277         } else if (adap->id == 0) {
1278                 if (state->i2c_client[0])
1279                         af9035_del_i2c_dev(d);
1280         }
1281
1282         return 0;
1283 }
1284
1285 static const struct fc0011_config af9035_fc0011_config = {
1286         .i2c_address = 0x60,
1287 };
1288
1289 static struct mxl5007t_config af9035_mxl5007t_config[] = {
1290         {
1291                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1292                 .if_freq_hz = MxL_IF_4_57_MHZ,
1293                 .invert_if = 0,
1294                 .loop_thru_enable = 0,
1295                 .clk_out_enable = 0,
1296                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1297         }, {
1298                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1299                 .if_freq_hz = MxL_IF_4_57_MHZ,
1300                 .invert_if = 0,
1301                 .loop_thru_enable = 1,
1302                 .clk_out_enable = 1,
1303                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1304         }
1305 };
1306
1307 static struct tda18218_config af9035_tda18218_config = {
1308         .i2c_address = 0x60,
1309         .i2c_wr_max = 21,
1310 };
1311
1312 static const struct fc0012_config af9035_fc0012_config[] = {
1313         {
1314                 .i2c_address = 0x63,
1315                 .xtal_freq = FC_XTAL_36_MHZ,
1316                 .dual_master = true,
1317                 .loop_through = true,
1318                 .clock_out = true,
1319         }, {
1320                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1321                 .xtal_freq = FC_XTAL_36_MHZ,
1322                 .dual_master = true,
1323         }
1324 };
1325
1326 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1327 {
1328         struct state *state = adap_to_priv(adap);
1329         struct dvb_usb_device *d = adap_to_d(adap);
1330         struct usb_interface *intf = d->intf;
1331         int ret;
1332         struct dvb_frontend *fe;
1333         struct i2c_msg msg[1];
1334         u8 tuner_addr;
1335
1336         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1337
1338         /*
1339          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1340          * to carry info about used I2C bus for dual tuner configuration.
1341          */
1342
1343         switch (state->af9033_config[adap->id].tuner) {
1344         case AF9033_TUNER_TUA9001: {
1345                 struct tua9001_platform_data tua9001_pdata = {
1346                         .dvb_frontend = adap->fe[0],
1347                 };
1348
1349                 /*
1350                  * AF9035 gpiot3 = TUA9001 RESETN
1351                  * AF9035 gpiot2 = TUA9001 RXEN
1352                  */
1353
1354                 /* configure gpiot2 and gpiot2 as output */
1355                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1356                 if (ret < 0)
1357                         goto err;
1358
1359                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1360                 if (ret < 0)
1361                         goto err;
1362
1363                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1364                 if (ret < 0)
1365                         goto err;
1366
1367                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1368                 if (ret < 0)
1369                         goto err;
1370
1371                 /* attach tuner */
1372                 ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1373                                          &d->i2c_adap);
1374                 if (ret)
1375                         goto err;
1376
1377                 fe = adap->fe[0];
1378                 break;
1379         }
1380         case AF9033_TUNER_FC0011:
1381                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1382                                 &d->i2c_adap, &af9035_fc0011_config);
1383                 break;
1384         case AF9033_TUNER_MXL5007T:
1385                 if (adap->id == 0) {
1386                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1387                         if (ret < 0)
1388                                 goto err;
1389
1390                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1391                         if (ret < 0)
1392                                 goto err;
1393
1394                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1395                         if (ret < 0)
1396                                 goto err;
1397
1398                         msleep(30);
1399
1400                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1401                         if (ret < 0)
1402                                 goto err;
1403
1404                         msleep(300);
1405
1406                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1407                         if (ret < 0)
1408                                 goto err;
1409
1410                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1411                         if (ret < 0)
1412                                 goto err;
1413
1414                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1415                         if (ret < 0)
1416                                 goto err;
1417
1418                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1419                         if (ret < 0)
1420                                 goto err;
1421
1422                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1423                         if (ret < 0)
1424                                 goto err;
1425
1426                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1427                         if (ret < 0)
1428                                 goto err;
1429
1430                         tuner_addr = 0x60;
1431                 } else {
1432                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1433                 }
1434
1435                 /* attach tuner */
1436                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1437                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1438                 break;
1439         case AF9033_TUNER_TDA18218:
1440                 /* attach tuner */
1441                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1442                                 &d->i2c_adap, &af9035_tda18218_config);
1443                 break;
1444         case AF9033_TUNER_FC2580: {
1445                 struct fc2580_platform_data fc2580_pdata = {
1446                         .dvb_frontend = adap->fe[0],
1447                 };
1448
1449                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1450                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1451                 if (ret < 0)
1452                         goto err;
1453
1454                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1455                 if (ret < 0)
1456                         goto err;
1457
1458                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1459                 if (ret < 0)
1460                         goto err;
1461
1462                 usleep_range(10000, 50000);
1463                 /* attach tuner */
1464                 ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1465                                          &d->i2c_adap);
1466                 if (ret)
1467                         goto err;
1468
1469                 fe = adap->fe[0];
1470                 break;
1471         }
1472         case AF9033_TUNER_FC0012:
1473                 /*
1474                  * AF9035 gpiot2 = FC0012 enable
1475                  * XXX: there seems to be something on gpioh8 too, but on my
1476                  * my test I didn't find any difference.
1477                  */
1478
1479                 if (adap->id == 0) {
1480                         /* configure gpiot2 as output and high */
1481                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1482                         if (ret < 0)
1483                                 goto err;
1484
1485                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1486                         if (ret < 0)
1487                                 goto err;
1488
1489                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1490                         if (ret < 0)
1491                                 goto err;
1492                 } else {
1493                         /*
1494                          * FIXME: That belongs for the FC0012 driver.
1495                          * Write 02 to FC0012 master tuner register 0d directly
1496                          * in order to make slave tuner working.
1497                          */
1498                         msg[0].addr = 0x63;
1499                         msg[0].flags = 0;
1500                         msg[0].len = 2;
1501                         msg[0].buf = "\x0d\x02";
1502                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1503                         if (ret < 0)
1504                                 goto err;
1505                 }
1506
1507                 usleep_range(10000, 50000);
1508
1509                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1510                                 &af9035_fc0012_config[adap->id]);
1511                 break;
1512         case AF9033_TUNER_IT9135_38:
1513         case AF9033_TUNER_IT9135_51:
1514         case AF9033_TUNER_IT9135_52:
1515         {
1516                 struct it913x_config it913x_config = {
1517                         .fe = adap->fe[0],
1518                         .chip_ver = 1,
1519                 };
1520
1521                 if (state->dual_mode) {
1522                         if (adap->id == 0)
1523                                 it913x_config.role = IT913X_ROLE_DUAL_MASTER;
1524                         else
1525                                 it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
1526                 }
1527
1528                 ret = af9035_add_i2c_dev(d, "it913x",
1529                                 state->af9033_i2c_addr[adap->id] >> 1,
1530                                 &it913x_config, &d->i2c_adap);
1531                 if (ret)
1532                         goto err;
1533
1534                 fe = adap->fe[0];
1535                 break;
1536         }
1537         case AF9033_TUNER_IT9135_60:
1538         case AF9033_TUNER_IT9135_61:
1539         case AF9033_TUNER_IT9135_62:
1540         {
1541                 struct it913x_config it913x_config = {
1542                         .fe = adap->fe[0],
1543                         .chip_ver = 2,
1544                 };
1545
1546                 if (state->dual_mode) {
1547                         if (adap->id == 0)
1548                                 it913x_config.role = IT913X_ROLE_DUAL_MASTER;
1549                         else
1550                                 it913x_config.role = IT913X_ROLE_DUAL_SLAVE;
1551                 }
1552
1553                 ret = af9035_add_i2c_dev(d, "it913x",
1554                                 state->af9033_i2c_addr[adap->id] >> 1,
1555                                 &it913x_config, &d->i2c_adap);
1556                 if (ret)
1557                         goto err;
1558
1559                 fe = adap->fe[0];
1560                 break;
1561         }
1562         default:
1563                 fe = NULL;
1564         }
1565
1566         if (fe == NULL) {
1567                 ret = -ENODEV;
1568                 goto err;
1569         }
1570
1571         return 0;
1572
1573 err:
1574         dev_dbg(&intf->dev, "failed=%d\n", ret);
1575
1576         return ret;
1577 }
1578
1579 static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1580 {
1581         struct state *state = adap_to_priv(adap);
1582         struct dvb_usb_device *d = adap_to_d(adap);
1583         struct usb_interface *intf = d->intf;
1584         int ret;
1585         struct si2157_config si2157_config;
1586
1587         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1588
1589         /* I2C master bus 2 clock speed 300k */
1590         ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
1591         if (ret < 0)
1592                 goto err;
1593
1594         /* I2C master bus 1,3 clock speed 300k */
1595         ret = af9035_wr_reg(d, 0x00f103, 0x07);
1596         if (ret < 0)
1597                 goto err;
1598
1599         /* set gpio11 low */
1600         ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1601         if (ret < 0)
1602                 goto err;
1603
1604         ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1605         if (ret < 0)
1606                 goto err;
1607
1608         ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1609         if (ret < 0)
1610                 goto err;
1611
1612         /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1613         ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1614         if (ret < 0)
1615                 goto err;
1616
1617         ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1618         if (ret < 0)
1619                 goto err;
1620
1621         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1622         if (ret < 0)
1623                 goto err;
1624
1625         msleep(200);
1626
1627         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1628         if (ret < 0)
1629                 goto err;
1630
1631         memset(&si2157_config, 0, sizeof(si2157_config));
1632         si2157_config.fe = adap->fe[0];
1633         si2157_config.if_port = 1;
1634         ret = af9035_add_i2c_dev(d, "si2157", 0x63,
1635                         &si2157_config, state->i2c_adapter_demod);
1636
1637         if (ret)
1638                 goto err;
1639
1640         return 0;
1641
1642 err:
1643         dev_dbg(&intf->dev, "failed=%d\n", ret);
1644
1645         return ret;
1646 }
1647
1648
1649 static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1650 {
1651         struct state *state = adap_to_priv(adap);
1652         struct dvb_usb_device *d = adap_to_d(adap);
1653         struct usb_interface *intf = d->intf;
1654
1655         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1656
1657         if (adap->id == 1) {
1658                 if (state->i2c_client[3])
1659                         af9035_del_i2c_dev(d);
1660         } else if (adap->id == 0) {
1661                 if (state->i2c_client[1])
1662                         af9035_del_i2c_dev(d);
1663         }
1664
1665         return 0;
1666 }
1667
1668
1669 static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1670 {
1671         struct state *state = adap_to_priv(adap);
1672         struct dvb_usb_device *d = adap_to_d(adap);
1673         struct usb_interface *intf = d->intf;
1674
1675         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1676
1677         switch (state->af9033_config[adap->id].tuner) {
1678         case AF9033_TUNER_TUA9001:
1679         case AF9033_TUNER_FC2580:
1680         case AF9033_TUNER_IT9135_38:
1681         case AF9033_TUNER_IT9135_51:
1682         case AF9033_TUNER_IT9135_52:
1683         case AF9033_TUNER_IT9135_60:
1684         case AF9033_TUNER_IT9135_61:
1685         case AF9033_TUNER_IT9135_62:
1686                 if (adap->id == 1) {
1687                         if (state->i2c_client[3])
1688                                 af9035_del_i2c_dev(d);
1689                 } else if (adap->id == 0) {
1690                         if (state->i2c_client[1])
1691                                 af9035_del_i2c_dev(d);
1692                 }
1693         }
1694
1695         return 0;
1696 }
1697
1698 static int af9035_init(struct dvb_usb_device *d)
1699 {
1700         struct state *state = d_to_priv(d);
1701         struct usb_interface *intf = d->intf;
1702         int ret, i;
1703         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1704         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1705         struct reg_val_mask tab[] = {
1706                 { 0x80f99d, 0x01, 0x01 },
1707                 { 0x80f9a4, 0x01, 0x01 },
1708                 { 0x00dd11, 0x00, 0x20 },
1709                 { 0x00dd11, 0x00, 0x40 },
1710                 { 0x00dd13, 0x00, 0x20 },
1711                 { 0x00dd13, 0x00, 0x40 },
1712                 { 0x00dd11, 0x20, 0x20 },
1713                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1714                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1715                 { 0x00dd0c, packet_size, 0xff},
1716                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1717                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1718                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1719                 { 0x00dd0d, packet_size, 0xff },
1720                 { 0x80f9a3, state->dual_mode, 0x01 },
1721                 { 0x80f9cd, state->dual_mode, 0x01 },
1722                 { 0x80f99d, 0x00, 0x01 },
1723                 { 0x80f9a4, 0x00, 0x01 },
1724         };
1725
1726         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1727                 d->udev->speed, frame_size, packet_size);
1728
1729         /* init endpoints */
1730         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1731                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1732                                 tab[i].mask);
1733                 if (ret < 0)
1734                         goto err;
1735         }
1736
1737         return 0;
1738
1739 err:
1740         dev_dbg(&intf->dev, "failed=%d\n", ret);
1741
1742         return ret;
1743 }
1744
1745 static int it930x_init(struct dvb_usb_device *d)
1746 {
1747         struct state *state = d_to_priv(d);
1748         struct usb_interface *intf = d->intf;
1749         int ret, i;
1750         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4;
1751         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1752         struct reg_val_mask tab[] = {
1753                 { 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */
1754                 { 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */
1755                 { 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */
1756                 { 0x00f41a, 0x01, 0x01 }, /* dvbt_en */
1757                 { 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */
1758                 { 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */
1759                 { 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */
1760                 { 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */
1761                 { 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */
1762                 { 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */
1763                 { 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */
1764                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1765                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1766                 { 0x00dd0c, packet_size, 0xff},
1767                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1768                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1769                 { 0x00dd0d, packet_size, 0xff },
1770                 { 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */
1771                 { 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */
1772                 { 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */
1773                 { 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */
1774                 { 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */
1775
1776                 /* suspend gpio1 for TS-C */
1777                 { 0x00d8b0, 0x01, 0xff }, /* gpio1 */
1778                 { 0x00d8b1, 0x01, 0xff }, /* gpio1 */
1779                 { 0x00d8af, 0x00, 0xff }, /* gpio1 */
1780
1781                 /* suspend gpio7 for TS-D */
1782                 { 0x00d8c4, 0x01, 0xff }, /* gpio7 */
1783                 { 0x00d8c5, 0x01, 0xff }, /* gpio7 */
1784                 { 0x00d8c3, 0x00, 0xff }, /* gpio7 */
1785
1786                 /* suspend gpio13 for TS-B */
1787                 { 0x00d8dc, 0x01, 0xff }, /* gpio13 */
1788                 { 0x00d8dd, 0x01, 0xff }, /* gpio13 */
1789                 { 0x00d8db, 0x00, 0xff }, /* gpio13 */
1790
1791                 /* suspend gpio14 for TS-E */
1792                 { 0x00d8e4, 0x01, 0xff }, /* gpio14 */
1793                 { 0x00d8e5, 0x01, 0xff }, /* gpio14 */
1794                 { 0x00d8e3, 0x00, 0xff }, /* gpio14 */
1795
1796                 /* suspend gpio15 for TS-A */
1797                 { 0x00d8e8, 0x01, 0xff }, /* gpio15 */
1798                 { 0x00d8e9, 0x01, 0xff }, /* gpio15 */
1799                 { 0x00d8e7, 0x00, 0xff }, /* gpio15 */
1800
1801                 { 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */
1802                 { 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */
1803                 { 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */
1804                 { 0x00da4c, 0x01, 0xff }, /* ts0_en */
1805                 { 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */
1806         };
1807
1808         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1809                 d->udev->speed, frame_size, packet_size);
1810
1811         /* init endpoints */
1812         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1813                 ret = af9035_wr_reg_mask(d, tab[i].reg,
1814                                 tab[i].val, tab[i].mask);
1815
1816                 if (ret < 0)
1817                         goto err;
1818         }
1819
1820         return 0;
1821 err:
1822         dev_dbg(&intf->dev, "failed=%d\n", ret);
1823
1824         return ret;
1825 }
1826
1827
1828 #if IS_ENABLED(CONFIG_RC_CORE)
1829 static int af9035_rc_query(struct dvb_usb_device *d)
1830 {
1831         struct usb_interface *intf = d->intf;
1832         int ret;
1833         enum rc_type proto;
1834         u32 key;
1835         u8 buf[4];
1836         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1837
1838         ret = af9035_ctrl_msg(d, &req);
1839         if (ret == 1)
1840                 return 0;
1841         else if (ret < 0)
1842                 goto err;
1843
1844         if ((buf[2] + buf[3]) == 0xff) {
1845                 if ((buf[0] + buf[1]) == 0xff) {
1846                         /* NEC standard 16bit */
1847                         key = RC_SCANCODE_NEC(buf[0], buf[2]);
1848                         proto = RC_TYPE_NEC;
1849                 } else {
1850                         /* NEC extended 24bit */
1851                         key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1852                         proto = RC_TYPE_NECX;
1853                 }
1854         } else {
1855                 /* NEC full code 32bit */
1856                 key = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1857                                         buf[2] << 8  | buf[3]);
1858                 proto = RC_TYPE_NEC32;
1859         }
1860
1861         dev_dbg(&intf->dev, "%*ph\n", 4, buf);
1862
1863         rc_keydown(d->rc_dev, proto, key, 0);
1864
1865         return 0;
1866
1867 err:
1868         dev_dbg(&intf->dev, "failed=%d\n", ret);
1869
1870         return ret;
1871 }
1872
1873 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1874 {
1875         struct state *state = d_to_priv(d);
1876         struct usb_interface *intf = d->intf;
1877         int ret;
1878         u8 tmp;
1879
1880         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_MODE, &tmp);
1881         if (ret < 0)
1882                 goto err;
1883
1884         dev_dbg(&intf->dev, "ir_mode=%02x\n", tmp);
1885
1886         /* don't activate rc if in HID mode or if not available */
1887         if (tmp == 5) {
1888                 ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_TYPE,
1889                                 &tmp);
1890                 if (ret < 0)
1891                         goto err;
1892
1893                 dev_dbg(&intf->dev, "ir_type=%02x\n", tmp);
1894
1895                 switch (tmp) {
1896                 case 0: /* NEC */
1897                 default:
1898                         rc->allowed_protos = RC_BIT_NEC | RC_BIT_NECX |
1899                                                                 RC_BIT_NEC32;
1900                         break;
1901                 case 1: /* RC6 */
1902                         rc->allowed_protos = RC_BIT_RC6_MCE;
1903                         break;
1904                 }
1905
1906                 rc->query = af9035_rc_query;
1907                 rc->interval = 500;
1908
1909                 /* load empty to enable rc */
1910                 if (!rc->map_name)
1911                         rc->map_name = RC_MAP_EMPTY;
1912         }
1913
1914         return 0;
1915
1916 err:
1917         dev_dbg(&intf->dev, "failed=%d\n", ret);
1918
1919         return ret;
1920 }
1921 #else
1922         #define af9035_get_rc_config NULL
1923 #endif
1924
1925 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1926                 struct usb_data_stream_properties *stream)
1927 {
1928         struct dvb_usb_device *d = fe_to_d(fe);
1929         struct usb_interface *intf = d->intf;
1930
1931         dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1932
1933         if (d->udev->speed == USB_SPEED_FULL)
1934                 stream->u.bulk.buffersize = 5 * 188;
1935
1936         return 0;
1937 }
1938
1939 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1940 {
1941         struct state *state = adap_to_priv(adap);
1942
1943         return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1944 }
1945
1946 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1947                 int onoff)
1948 {
1949         struct state *state = adap_to_priv(adap);
1950
1951         return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1952 }
1953
1954 static int af9035_probe(struct usb_interface *intf,
1955                 const struct usb_device_id *id)
1956 {
1957         struct usb_device *udev = interface_to_usbdev(intf);
1958         char manufacturer[sizeof("Afatech")];
1959
1960         memset(manufacturer, 0, sizeof(manufacturer));
1961         usb_string(udev, udev->descriptor.iManufacturer,
1962                         manufacturer, sizeof(manufacturer));
1963         /*
1964          * There is two devices having same ID but different chipset. One uses
1965          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1966          * is iManufacturer string.
1967          *
1968          * idVendor           0x0ccd TerraTec Electronic GmbH
1969          * idProduct          0x0099
1970          * bcdDevice            2.00
1971          * iManufacturer           1 Afatech
1972          * iProduct                2 DVB-T 2
1973          *
1974          * idVendor           0x0ccd TerraTec Electronic GmbH
1975          * idProduct          0x0099
1976          * bcdDevice            2.00
1977          * iManufacturer           1 ITE Technologies, Inc.
1978          * iProduct                2 DVB-T TV Stick
1979          */
1980         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1981                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1982                 if (!strcmp("Afatech", manufacturer)) {
1983                         dev_dbg(&udev->dev, "rejecting device\n");
1984                         return -ENODEV;
1985                 }
1986         }
1987
1988         return dvb_usbv2_probe(intf, id);
1989 }
1990
1991 /* interface 0 is used by DVB-T receiver and
1992    interface 1 is for remote controller (HID) */
1993 static const struct dvb_usb_device_properties af9035_props = {
1994         .driver_name = KBUILD_MODNAME,
1995         .owner = THIS_MODULE,
1996         .adapter_nr = adapter_nr,
1997         .size_of_priv = sizeof(struct state),
1998
1999         .generic_bulk_ctrl_endpoint = 0x02,
2000         .generic_bulk_ctrl_endpoint_response = 0x81,
2001
2002         .identify_state = af9035_identify_state,
2003         .download_firmware = af9035_download_firmware,
2004
2005         .i2c_algo = &af9035_i2c_algo,
2006         .read_config = af9035_read_config,
2007         .frontend_attach = af9035_frontend_attach,
2008         .frontend_detach = af9035_frontend_detach,
2009         .tuner_attach = af9035_tuner_attach,
2010         .tuner_detach = af9035_tuner_detach,
2011         .init = af9035_init,
2012         .get_rc_config = af9035_get_rc_config,
2013         .get_stream_config = af9035_get_stream_config,
2014
2015         .get_adapter_count = af9035_get_adapter_count,
2016         .adapter = {
2017                 {
2018                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2019                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2020
2021                         .pid_filter_count = 32,
2022                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2023                         .pid_filter = af9035_pid_filter,
2024
2025                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2026                 }, {
2027                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2028                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2029
2030                         .pid_filter_count = 32,
2031                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2032                         .pid_filter = af9035_pid_filter,
2033
2034                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2035                 },
2036         },
2037 };
2038
2039 static const struct dvb_usb_device_properties it930x_props = {
2040         .driver_name = KBUILD_MODNAME,
2041         .owner = THIS_MODULE,
2042         .adapter_nr = adapter_nr,
2043         .size_of_priv = sizeof(struct state),
2044
2045         .generic_bulk_ctrl_endpoint = 0x02,
2046         .generic_bulk_ctrl_endpoint_response = 0x81,
2047
2048         .identify_state = af9035_identify_state,
2049         .download_firmware = af9035_download_firmware,
2050
2051         .i2c_algo = &af9035_i2c_algo,
2052         .read_config = af9035_read_config,
2053         .frontend_attach = it930x_frontend_attach,
2054         .frontend_detach = af9035_frontend_detach,
2055         .tuner_attach = it930x_tuner_attach,
2056         .tuner_detach = it930x_tuner_detach,
2057         .init = it930x_init,
2058         .get_stream_config = af9035_get_stream_config,
2059
2060         .get_adapter_count = af9035_get_adapter_count,
2061         .adapter = {
2062                 {
2063                         .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2064                 }, {
2065                         .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2066                 },
2067         },
2068 };
2069
2070 static const struct usb_device_id af9035_id_table[] = {
2071         /* AF9035 devices */
2072         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2073                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2074         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2075                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2076         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2077                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2078         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2079                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2080         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2081                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2082         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2083                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
2084         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2085                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2086         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2087                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2088         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2089                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2090         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2091                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2092         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2093                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2094         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2095                 &af9035_props, "Asus U3100Mini Plus", NULL) },
2096         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2097                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2098         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2099                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2100
2101         /* IT9135 devices */
2102         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2103                 &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2104         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2105                 &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2106         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2107                 &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2108         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2109                 &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2110         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2111                 &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2112         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2113                 &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2114         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2115                 &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
2116         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2117                 &af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2118         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2119                 &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2120         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2121                 &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2122         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2123                 &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2124                                                         RC_MAP_IT913X_V1) },
2125         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2126                 &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2127                                                         RC_MAP_IT913X_V1) },
2128         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2129         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2130                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2131                 NULL) },
2132         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2133                 &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2134         { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2135                 &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2136         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2137                 &af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2138         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2139                 &af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2140
2141         /* IT930x devices */
2142         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2143                 &it930x_props, "ITE 9303 Generic", NULL) },
2144         { }
2145 };
2146 MODULE_DEVICE_TABLE(usb, af9035_id_table);
2147
2148 static struct usb_driver af9035_usb_driver = {
2149         .name = KBUILD_MODNAME,
2150         .id_table = af9035_id_table,
2151         .probe = af9035_probe,
2152         .disconnect = dvb_usbv2_disconnect,
2153         .suspend = dvb_usbv2_suspend,
2154         .resume = dvb_usbv2_resume,
2155         .reset_resume = dvb_usbv2_reset_resume,
2156         .no_dynamic_id = 1,
2157         .soft_unbind = 1,
2158 };
2159
2160 module_usb_driver(af9035_usb_driver);
2161
2162 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2163 MODULE_DESCRIPTION("Afatech AF9035 driver");
2164 MODULE_LICENSE("GPL");
2165 /*(DEBLOBBED)*/