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                         /* demod access via firmware interface */
 340                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 341                                         msg[0].buf[2];
 342
 343                         if (msg[0].addr == state->af9033_i2c_addr[1])
 344                                 reg |= 0x100000;
 345
 346                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 347                                         msg[1].len);
 348                 } else if (state->no_read) {
 349                         memset(msg[1].buf, 0, msg[1].len);
 350                         ret = 0;
 351                 } else {
 352                         /* I2C write + read */
 353                         u8 buf[MAX_XFER_SIZE];
 354                         struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
 355                                         buf, msg[1].len, msg[1].buf };
 356
 357                         if (state->chip_type == 0x9306) {
 358                                 req.cmd = CMD_GENERIC_I2C_RD;
 359                                 req.wlen = 3 + msg[0].len;
 360                         }
 361                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 362
 363                         buf[0] = msg[1].len;
 364                         if (state->chip_type == 0x9306) {
 365                                 buf[1] = 0x03; /* I2C bus */
 366                                 buf[2] = msg[0].addr << 1;
 367                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 368                         } else {
 369                                 buf[1] = msg[0].addr << 1;
 370                                 buf[3] = 0x00; /* reg addr MSB */
 371                                 buf[4] = 0x00; /* reg addr LSB */
 372
 373                                 /* Keep prev behavior for write req len > 2*/
 374                                 if (msg[0].len > 2) {
 375                                         buf[2] = 0x00; /* reg addr len */
 376                                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 377
 378                                 /* Use reg addr fields if write req len <= 2 */
 379                                 } else {
 380                                         req.wlen = 5;
 381                                         buf[2] = msg[0].len;
 382                                         if (msg[0].len == 2) {
 383                                                 buf[3] = msg[0].buf[0];
 384                                                 buf[4] = msg[0].buf[1];
 385                                         } else if (msg[0].len == 1) {
 386                                                 buf[4] = msg[0].buf[0];
 387                                         }
 388                                 }
 389                         }
 390                         ret = af9035_ctrl_msg(d, &req);
 391                 }
 392         } else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) {
 393                 if (msg[0].len > 40) {
 394                         /* TODO: correct limits > 40 */
 395                         ret = -EOPNOTSUPP;
 396                 } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 397                            (msg[0].addr == state->af9033_i2c_addr[1])) {
 398                         /* demod access via firmware interface */
 399                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 400                                         msg[0].buf[2];
 401
 402                         if (msg[0].addr == state->af9033_i2c_addr[1])
 403                                 reg |= 0x100000;
 404
 405                         ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
 406                                                                  &msg[0].buf[3],
 407                                                                  msg[0].len - 3)
 408                                                 : -EOPNOTSUPP;
 409                 } else {
 410                         /* I2C write */
 411                         u8 buf[MAX_XFER_SIZE];
 412                         struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 413                                         buf, 0, NULL };
 414
 415                         if (state->chip_type == 0x9306) {
 416                                 req.cmd = CMD_GENERIC_I2C_WR;
 417                                 req.wlen = 3 + msg[0].len;
 418                         }
 419
 420                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 421                         buf[0] = msg[0].len;
 422                         if (state->chip_type == 0x9306) {
 423                                 buf[1] = 0x03; /* I2C bus */
 424                                 buf[2] = msg[0].addr << 1;
 425                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 426                         } else {
 427                                 buf[1] = msg[0].addr << 1;
 428                                 buf[2] = 0x00; /* reg addr len */
 429                                 buf[3] = 0x00; /* reg addr MSB */
 430                                 buf[4] = 0x00; /* reg addr LSB */
 431                                 memcpy(&buf[5], msg[0].buf, msg[0].len);
 432                         }
 433                         ret = af9035_ctrl_msg(d, &req);
 434                 }
 435         } else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
 436                 if (msg[0].len > 40) {
 437                         /* TODO: correct limits > 40 */
 438                         ret = -EOPNOTSUPP;
 439                 } else if (state->no_read) {
 440                         memset(msg[0].buf, 0, msg[0].len);
 441                         ret = 0;
 442                 } else {
 443                         /* I2C read */
 444                         u8 buf[5];
 445                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 446                                                 buf, msg[0].len, msg[0].buf };
 447
 448                         if (state->chip_type == 0x9306) {
 449                                 req.cmd = CMD_GENERIC_I2C_RD;
 450                                 req.wlen = 3;
 451                         }
 452                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 453                         buf[0] = msg[0].len;
 454                         if (state->chip_type == 0x9306) {
 455                                 buf[1] = 0x03; /* I2C bus */
 456                                 buf[2] = msg[0].addr << 1;
 457                         } else {
 458                                 buf[1] = msg[0].addr << 1;
 459                                 buf[2] = 0x00; /* reg addr len */
 460                                 buf[3] = 0x00; /* reg addr MSB */
 461                                 buf[4] = 0x00; /* reg addr LSB */
 462                         }
 463                         ret = af9035_ctrl_msg(d, &req);
 464                 }
 465         } else {
 466                 /*
 467                  * We support only three kind of I2C transactions:
 468                  * 1) 1 x write + 1 x read (repeated start)
 469                  * 2) 1 x write
 470                  * 3) 1 x read
 471                  */
 472                 ret = -EOPNOTSUPP;
 473         }
 474
 475         mutex_unlock(&d->i2c_mutex);
 476
 477         if (ret < 0)
 478                 return ret;
 479         else
 480                 return num;
 481 }
 482
 483 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 484 {
 485         return I2C_FUNC_I2C;
 486 }
 487
 488 static struct i2c_algorithm af9035_i2c_algo = {
 489         .master_xfer = af9035_i2c_master_xfer,
 490         .functionality = af9035_i2c_functionality,
 491 };
 492
 493 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 494 {
 495         struct state *state = d_to_priv(d);
 496         struct usb_interface *intf = d->intf;
 497         int ret, i, ts_mode_invalid;
 498         unsigned int utmp, eeprom_addr;
 499         u8 tmp;
 500         u8 wbuf[1] = { 1 };
 501         u8 rbuf[4];
 502         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 503                         sizeof(rbuf), rbuf };
 504
 505         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 506         if (ret < 0)
 507                 goto err;
 508
 509         state->chip_version = rbuf[0];
 510         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 511
 512         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 513         if (ret < 0)
 514                 goto err;
 515
 516         dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 517                  state->prechip_version, state->chip_version, state->chip_type);
 518
 519         if (state->chip_type == 0x9135) {
 520                 if (state->chip_version == 0x02) {
 521                         *name = AF9035_FIRMWARE_IT9135_V2;
 522                         utmp = 0x00461d;
 523                 } else {
 524                         *name = AF9035_FIRMWARE_IT9135_V1;
 525                         utmp = 0x00461b;
 526                 }
 527
 528                 /* Check if eeprom exists */
 529                 ret = af9035_rd_reg(d, utmp, &tmp);
 530                 if (ret < 0)
 531                         goto err;
 532
 533                 if (tmp == 0x00) {
 534                         dev_dbg(&intf->dev, "no eeprom\n");
 535                         state->no_eeprom = true;
 536                         goto check_firmware_status;
 537                 }
 538
 539                 eeprom_addr = EEPROM_BASE_IT9135;
 540         } else if (state->chip_type == 0x9306) {
 541                 *name = AF9035_FIRMWARE_IT9303;
 542                 state->no_eeprom = true;
 543                 goto check_firmware_status;
 544         } else {
 545                 *name = AF9035_FIRMWARE_AF9035;
 546                 eeprom_addr = EEPROM_BASE_AF9035;
 547         }
 548
 549         /* Read and store eeprom */
 550         for (i = 0; i < 256; i += 32) {
 551                 ret = af9035_rd_regs(d, eeprom_addr + i, &state->eeprom[i], 32);
 552                 if (ret < 0)
 553                         goto err;
 554         }
 555
 556         dev_dbg(&intf->dev, "eeprom dump:\n");
 557         for (i = 0; i < 256; i += 16)
 558                 dev_dbg(&intf->dev, "%*ph\n", 16, &state->eeprom[i]);
 559
 560         /* check for dual tuner mode */
 561         tmp = state->eeprom[EEPROM_TS_MODE];
 562         ts_mode_invalid = 0;
 563         switch (tmp) {
 564         case 0:
 565                 break;
 566         case 1:
 567         case 3:
 568                 state->dual_mode = true;
 569                 break;
 570         case 5:
 571                 if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
 572                         state->dual_mode = true;        /* AF9035 */
 573                 else
 574                         ts_mode_invalid = 1;
 575                 break;
 576         default:
 577                 ts_mode_invalid = 1;
 578         }
 579
 580         dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
 581
 582         if (ts_mode_invalid)
 583                 dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 584
 585 check_firmware_status:
 586         ret = af9035_ctrl_msg(d, &req);
 587         if (ret < 0)
 588                 goto err;
 589
 590         dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
 591         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 592                 ret = WARM;
 593         else
 594                 ret = COLD;
 595
 596         return ret;
 597
 598 err:
 599         dev_dbg(&intf->dev, "failed=%d\n", ret);
 600
 601         return ret;
 602 }
 603
 604 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 605                 const struct firmware *fw)
 606 {
 607         struct usb_interface *intf = d->intf;
 608         int ret, i, j, len;
 609         u8 wbuf[1];
 610         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 611         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 612         u8 hdr_core;
 613         u16 hdr_addr, hdr_data_len, hdr_checksum;
 614         #define MAX_DATA 58
 615         #define HDR_SIZE 7
 616
 617         /*
 618          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 619          *
 620          * byte 0: MCS 51 core
 621          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 622          *  address spaces
 623          * byte 1-2: Big endian destination address
 624          * byte 3-4: Big endian number of data bytes following the header
 625          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 626          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 627          */
 628
 629         for (i = fw->size; i > HDR_SIZE;) {
 630                 hdr_core = fw->data[fw->size - i + 0];
 631                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 632                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 633                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 634                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 635                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 636                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 637
 638                 dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
 639                         hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
 640
 641                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 642                                 (hdr_data_len > i)) {
 643                         dev_dbg(&intf->dev, "bad firmware\n");
 644                         break;
 645                 }
 646
 647                 /* download begin packet */
 648                 req.cmd = CMD_FW_DL_BEGIN;
 649                 ret = af9035_ctrl_msg(d, &req);
 650                 if (ret < 0)
 651                         goto err;
 652
 653                 /* download firmware packet(s) */
 654                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 655                         len = j;
 656                         if (len > MAX_DATA)
 657                                 len = MAX_DATA;
 658                         req_fw_dl.wlen = len;
 659                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 660                                         HDR_SIZE + hdr_data_len - j];
 661                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 662                         if (ret < 0)
 663                                 goto err;
 664                 }
 665
 666                 /* download end packet */
 667                 req.cmd = CMD_FW_DL_END;
 668                 ret = af9035_ctrl_msg(d, &req);
 669                 if (ret < 0)
 670                         goto err;
 671
 672                 i -= hdr_data_len + HDR_SIZE;
 673
 674                 dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
 675         }
 676
 677         /* print warn if firmware is bad, continue and see what happens */
 678         if (i)
 679                 dev_warn(&intf->dev, "bad firmware\n");
 680
 681         return 0;
 682
 683 err:
 684         dev_dbg(&intf->dev, "failed=%d\n", ret);
 685
 686         return ret;
 687 }
 688
 689 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 690                 const struct firmware *fw)
 691 {
 692         struct usb_interface *intf = d->intf;
 693         int ret, i, i_prev;
 694         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 695         #define HDR_SIZE 7
 696
 697         /*
 698          * There seems to be following firmware header. Meaning of bytes 0-3
 699          * is unknown.
 700          *
 701          * 0: 3
 702          * 1: 0, 1
 703          * 2: 0
 704          * 3: 1, 2, 3
 705          * 4: addr MSB
 706          * 5: addr LSB
 707          * 6: count of data bytes ?
 708          */
 709         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 710                 if (i == fw->size ||
 711                                 (fw->data[i + 0] == 0x03 &&
 712                                 (fw->data[i + 1] == 0x00 ||
 713                                 fw->data[i + 1] == 0x01) &&
 714                                 fw->data[i + 2] == 0x00)) {
 715                         req_fw_dl.wlen = i - i_prev;
 716                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 717                         i_prev = i;
 718                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 719                         if (ret < 0)
 720                                 goto err;
 721
 722                         dev_dbg(&intf->dev, "data uploaded=%d\n", i);
 723                 }
 724         }
 725
 726         return 0;
 727
 728 err:
 729         dev_dbg(&intf->dev, "failed=%d\n", ret);
 730
 731         return ret;
 732 }
 733
 734 static int af9035_download_firmware(struct dvb_usb_device *d,
 735                 const struct firmware *fw)
 736 {
 737         struct usb_interface *intf = d->intf;
 738         struct state *state = d_to_priv(d);
 739         int ret;
 740         u8 wbuf[1];
 741         u8 rbuf[4];
 742         u8 tmp;
 743         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 744         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 745
 746         dev_dbg(&intf->dev, "\n");
 747
 748         /*
 749          * In case of dual tuner configuration we need to do some extra
 750          * initialization in order to download firmware to slave demod too,
 751          * which is done by master demod.
 752          * Master feeds also clock and controls power via GPIO.
 753          */
 754         if (state->dual_mode) {
 755                 /* configure gpioh1, reset & power slave demod */
 756                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 757                 if (ret < 0)
 758                         goto err;
 759
 760                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 761                 if (ret < 0)
 762                         goto err;
 763
 764                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 765                 if (ret < 0)
 766                         goto err;
 767
 768                 usleep_range(10000, 50000);
 769
 770                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 771                 if (ret < 0)
 772                         goto err;
 773
 774                 /* tell the slave I2C address */
 775                 tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 776
 777                 /* Use default I2C address if eeprom has no address set */
 778                 if (!tmp)
 779                         tmp = 0x1d << 1; /* 8-bit format used by chip */
 780
 781                 if ((state->chip_type == 0x9135) ||
 782                                 (state->chip_type == 0x9306)) {
 783                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 784                         if (ret < 0)
 785                                 goto err;
 786                 } else {
 787                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 788                         if (ret < 0)
 789                                 goto err;
 790
 791                         /* enable clock out */
 792                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 793                         if (ret < 0)
 794                                 goto err;
 795                 }
 796         }
 797
 798         if (fw->data[0] == 0x01)
 799                 ret = af9035_download_firmware_old(d, fw);
 800         else
 801                 ret = af9035_download_firmware_new(d, fw);
 802         if (ret < 0)
 803                 goto err;
 804
 805         /* firmware loaded, request boot */
 806         req.cmd = CMD_FW_BOOT;
 807         ret = af9035_ctrl_msg(d, &req);
 808         if (ret < 0)
 809                 goto err;
 810
 811         /* ensure firmware starts */
 812         wbuf[0] = 1;
 813         ret = af9035_ctrl_msg(d, &req_fw_ver);
 814         if (ret < 0)
 815                 goto err;
 816
 817         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 818                 dev_err(&intf->dev, "firmware did not run\n");
 819                 ret = -ENODEV;
 820                 goto err;
 821         }
 822
 823         dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
 824                  rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 825
 826         return 0;
 827
 828 err:
 829         dev_dbg(&intf->dev, "failed=%d\n", ret);
 830
 831         return ret;
 832 }
 833
 834 static int af9035_read_config(struct dvb_usb_device *d)
 835 {
 836         struct usb_interface *intf = d->intf;
 837         struct state *state = d_to_priv(d);
 838         int ret, i;
 839         u8 tmp;
 840         u16 tmp16;
 841
 842         /* Demod I2C address */
 843         state->af9033_i2c_addr[0] = 0x1c;
 844         state->af9033_i2c_addr[1] = 0x1d;
 845         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 846         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 847         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 848         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 849
 850         if (state->chip_type == 0x9135) {
 851                 /* feed clock for integrated RF tuner */
 852                 state->af9033_config[0].dyn0_clk = true;
 853                 state->af9033_config[1].dyn0_clk = true;
 854
 855                 if (state->chip_version == 0x02) {
 856                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 857                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 858                 } else {
 859                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 860                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 861                 }
 862
 863                 if (state->no_eeprom) {
 864                         /* Remote controller to NEC polling by default */
 865                         state->ir_mode = 0x05;
 866                         state->ir_type = 0x00;
 867
 868                         goto skip_eeprom;
 869                 }
 870         } else if (state->chip_type == 0x9306) {
 871                 /*
 872                  * IT930x is an USB bridge, only single demod-single tuner
 873                  * configurations seen so far.
 874                  */
 875                 return 0;
 876         }
 877
 878         /* Remote controller */
 879         state->ir_mode = state->eeprom[EEPROM_IR_MODE];
 880         state->ir_type = state->eeprom[EEPROM_IR_TYPE];
 881
 882         if (state->dual_mode) {
 883                 /* Read 2nd demodulator I2C address. 8-bit format on eeprom */
 884                 tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 885                 if (tmp)
 886                         state->af9033_i2c_addr[1] = tmp >> 1;
 887
 888                 dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n",
 889                         state->af9033_i2c_addr[1]);
 890         }
 891
 892         for (i = 0; i < state->dual_mode + 1; i++) {
 893                 unsigned int eeprom_offset = 0;
 894
 895                 /* tuner */
 896                 tmp = state->eeprom[EEPROM_1_TUNER_ID + eeprom_offset];
 897                 dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 898
 899                 /* tuner sanity check */
 900                 if (state->chip_type == 0x9135) {
 901                         if (state->chip_version == 0x02) {
 902                                 /* IT9135 BX (v2) */
 903                                 switch (tmp) {
 904                                 case AF9033_TUNER_IT9135_60:
 905                                 case AF9033_TUNER_IT9135_61:
 906                                 case AF9033_TUNER_IT9135_62:
 907                                         state->af9033_config[i].tuner = tmp;
 908                                         break;
 909                                 }
 910                         } else {
 911                                 /* IT9135 AX (v1) */
 912                                 switch (tmp) {
 913                                 case AF9033_TUNER_IT9135_38:
 914                                 case AF9033_TUNER_IT9135_51:
 915                                 case AF9033_TUNER_IT9135_52:
 916                                         state->af9033_config[i].tuner = tmp;
 917                                         break;
 918                                 }
 919                         }
 920                 } else {
 921                         /* AF9035 */
 922                         state->af9033_config[i].tuner = tmp;
 923                 }
 924
 925                 if (state->af9033_config[i].tuner != tmp) {
 926                         dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
 927                                  i, tmp, state->af9033_config[i].tuner);
 928                 }
 929
 930                 switch (state->af9033_config[i].tuner) {
 931                 case AF9033_TUNER_TUA9001:
 932                 case AF9033_TUNER_FC0011:
 933                 case AF9033_TUNER_MXL5007T:
 934                 case AF9033_TUNER_TDA18218:
 935                 case AF9033_TUNER_FC2580:
 936                 case AF9033_TUNER_FC0012:
 937                         state->af9033_config[i].spec_inv = 1;
 938                         break;
 939                 case AF9033_TUNER_IT9135_38:
 940                 case AF9033_TUNER_IT9135_51:
 941                 case AF9033_TUNER_IT9135_52:
 942                 case AF9033_TUNER_IT9135_60:
 943                 case AF9033_TUNER_IT9135_61:
 944                 case AF9033_TUNER_IT9135_62:
 945                         break;
 946                 default:
 947                         dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
 948                                  tmp);
 949                 }
 950
 951                 /* disable dual mode if driver does not support it */
 952                 if (i == 1)
 953                         switch (state->af9033_config[i].tuner) {
 954                         case AF9033_TUNER_FC0012:
 955                         case AF9033_TUNER_IT9135_38:
 956                         case AF9033_TUNER_IT9135_51:
 957                         case AF9033_TUNER_IT9135_52:
 958                         case AF9033_TUNER_IT9135_60:
 959                         case AF9033_TUNER_IT9135_61:
 960                         case AF9033_TUNER_IT9135_62:
 961                         case AF9033_TUNER_MXL5007T:
 962                                 break;
 963                         default:
 964                                 state->dual_mode = false;
 965                                 dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
 966                 }
 967
 968                 /* tuner IF frequency */
 969                 tmp = state->eeprom[EEPROM_1_IF_L + eeprom_offset];
 970                 tmp16 = tmp << 0;
 971                 tmp = state->eeprom[EEPROM_1_IF_H + eeprom_offset];
 972                 tmp16 |= tmp << 8;
 973                 dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 974
 975                 eeprom_offset += 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
1253         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1254
1255         if (adap->id == 1) {
1256                 if (state->i2c_client[1])
1257                         af9035_del_i2c_dev(d);
1258         } else if (adap->id == 0) {
1259                 if (state->i2c_client[0])
1260                         af9035_del_i2c_dev(d);
1261         }
1262
1263         return 0;
1264 }
1265
1266 static const struct fc0011_config af9035_fc0011_config = {
1267         .i2c_address = 0x60,
1268 };
1269
1270 static struct mxl5007t_config af9035_mxl5007t_config[] = {
1271         {
1272                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1273                 .if_freq_hz = MxL_IF_4_57_MHZ,
1274                 .invert_if = 0,
1275                 .loop_thru_enable = 0,
1276                 .clk_out_enable = 0,
1277                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1278         }, {
1279                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1280                 .if_freq_hz = MxL_IF_4_57_MHZ,
1281                 .invert_if = 0,
1282                 .loop_thru_enable = 1,
1283                 .clk_out_enable = 1,
1284                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1285         }
1286 };
1287
1288 static struct tda18218_config af9035_tda18218_config = {
1289         .i2c_address = 0x60,
1290         .i2c_wr_max = 21,
1291 };
1292
1293 static const struct fc0012_config af9035_fc0012_config[] = {
1294         {
1295                 .i2c_address = 0x63,
1296                 .xtal_freq = FC_XTAL_36_MHZ,
1297                 .dual_master = true,
1298                 .loop_through = true,
1299                 .clock_out = true,
1300         }, {
1301                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1302                 .xtal_freq = FC_XTAL_36_MHZ,
1303                 .dual_master = true,
1304         }
1305 };
1306
1307 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1308 {
1309         struct state *state = adap_to_priv(adap);
1310         struct dvb_usb_device *d = adap_to_d(adap);
1311         struct usb_interface *intf = d->intf;
1312         int ret;
1313         struct dvb_frontend *fe;
1314         struct i2c_msg msg[1];
1315         u8 tuner_addr;
1316
1317         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1318
1319         /*
1320          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1321          * to carry info about used I2C bus for dual tuner configuration.
1322          */
1323
1324         switch (state->af9033_config[adap->id].tuner) {
1325         case AF9033_TUNER_TUA9001: {
1326                 struct tua9001_platform_data tua9001_pdata = {
1327                         .dvb_frontend = adap->fe[0],
1328                 };
1329
1330                 /*
1331                  * AF9035 gpiot3 = TUA9001 RESETN
1332                  * AF9035 gpiot2 = TUA9001 RXEN
1333                  */
1334
1335                 /* configure gpiot2 and gpiot2 as output */
1336                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1337                 if (ret < 0)
1338                         goto err;
1339
1340                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1341                 if (ret < 0)
1342                         goto err;
1343
1344                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1345                 if (ret < 0)
1346                         goto err;
1347
1348                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1349                 if (ret < 0)
1350                         goto err;
1351
1352                 /* attach tuner */
1353                 ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1354                                          &d->i2c_adap);
1355                 if (ret)
1356                         goto err;
1357
1358                 fe = adap->fe[0];
1359                 break;
1360         }
1361         case AF9033_TUNER_FC0011:
1362                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1363                                 &d->i2c_adap, &af9035_fc0011_config);
1364                 break;
1365         case AF9033_TUNER_MXL5007T:
1366                 if (adap->id == 0) {
1367                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1368                         if (ret < 0)
1369                                 goto err;
1370
1371                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1372                         if (ret < 0)
1373                                 goto err;
1374
1375                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1376                         if (ret < 0)
1377                                 goto err;
1378
1379                         msleep(30);
1380
1381                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1382                         if (ret < 0)
1383                                 goto err;
1384
1385                         msleep(300);
1386
1387                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1388                         if (ret < 0)
1389                                 goto err;
1390
1391                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1392                         if (ret < 0)
1393                                 goto err;
1394
1395                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1396                         if (ret < 0)
1397                                 goto err;
1398
1399                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1400                         if (ret < 0)
1401                                 goto err;
1402
1403                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1404                         if (ret < 0)
1405                                 goto err;
1406
1407                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1408                         if (ret < 0)
1409                                 goto err;
1410
1411                         tuner_addr = 0x60;
1412                 } else {
1413                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1414                 }
1415
1416                 /* attach tuner */
1417                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1418                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1419                 break;
1420         case AF9033_TUNER_TDA18218:
1421                 /* attach tuner */
1422                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1423                                 &d->i2c_adap, &af9035_tda18218_config);
1424                 break;
1425         case AF9033_TUNER_FC2580: {
1426                 struct fc2580_platform_data fc2580_pdata = {
1427                         .dvb_frontend = adap->fe[0],
1428                 };
1429
1430                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1431                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1432                 if (ret < 0)
1433                         goto err;
1434
1435                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1436                 if (ret < 0)
1437                         goto err;
1438
1439                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1440                 if (ret < 0)
1441                         goto err;
1442
1443                 usleep_range(10000, 50000);
1444                 /* attach tuner */
1445                 ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1446                                          &d->i2c_adap);
1447                 if (ret)
1448                         goto err;
1449
1450                 fe = adap->fe[0];
1451                 break;
1452         }
1453         case AF9033_TUNER_FC0012:
1454                 /*
1455                  * AF9035 gpiot2 = FC0012 enable
1456                  * XXX: there seems to be something on gpioh8 too, but on my
1457                  * my test I didn't find any difference.
1458                  */
1459
1460                 if (adap->id == 0) {
1461                         /* configure gpiot2 as output and high */
1462                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1463                         if (ret < 0)
1464                                 goto err;
1465
1466                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1467                         if (ret < 0)
1468                                 goto err;
1469
1470                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1471                         if (ret < 0)
1472                                 goto err;
1473                 } else {
1474                         /*
1475                          * FIXME: That belongs for the FC0012 driver.
1476                          * Write 02 to FC0012 master tuner register 0d directly
1477                          * in order to make slave tuner working.
1478                          */
1479                         msg[0].addr = 0x63;
1480                         msg[0].flags = 0;
1481                         msg[0].len = 2;
1482                         msg[0].buf = "\x0d\x02";
1483                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1484                         if (ret < 0)
1485                                 goto err;
1486                 }
1487
1488                 usleep_range(10000, 50000);
1489
1490                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1491                                 &af9035_fc0012_config[adap->id]);
1492                 break;
1493         case AF9033_TUNER_IT9135_38:
1494         case AF9033_TUNER_IT9135_51:
1495         case AF9033_TUNER_IT9135_52:
1496         case AF9033_TUNER_IT9135_60:
1497         case AF9033_TUNER_IT9135_61:
1498         case AF9033_TUNER_IT9135_62:
1499         {
1500                 struct platform_device *pdev;
1501                 const char *name;
1502                 struct it913x_platform_data it913x_pdata = {
1503                         .regmap = state->af9033_config[adap->id].regmap,
1504                         .fe = adap->fe[0],
1505                 };
1506
1507                 switch (state->af9033_config[adap->id].tuner) {
1508                 case AF9033_TUNER_IT9135_38:
1509                 case AF9033_TUNER_IT9135_51:
1510                 case AF9033_TUNER_IT9135_52:
1511                         name = "it9133ax-tuner";
1512                         break;
1513                 case AF9033_TUNER_IT9135_60:
1514                 case AF9033_TUNER_IT9135_61:
1515                 case AF9033_TUNER_IT9135_62:
1516                         name = "it9133bx-tuner";
1517                         break;
1518                 default:
1519                         ret = -ENODEV;
1520                         goto err;
1521                 }
1522
1523                 if (state->dual_mode) {
1524                         if (adap->id == 0)
1525                                 it913x_pdata.role = IT913X_ROLE_DUAL_MASTER;
1526                         else
1527                                 it913x_pdata.role = IT913X_ROLE_DUAL_SLAVE;
1528                 } else {
1529                         it913x_pdata.role = IT913X_ROLE_SINGLE;
1530                 }
1531
1532                 request_module("%s", "it913x");
1533                 pdev = platform_device_register_data(&d->intf->dev, name,
1534                                                      PLATFORM_DEVID_AUTO,
1535                                                      &it913x_pdata,
1536                                                      sizeof(it913x_pdata));
1537                 if (IS_ERR(pdev) || !pdev->dev.driver) {
1538                         ret = -ENODEV;
1539                         goto err;
1540                 }
1541                 if (!try_module_get(pdev->dev.driver->owner)) {
1542                         platform_device_unregister(pdev);
1543                         ret = -ENODEV;
1544                         goto err;
1545                 }
1546
1547                 state->platform_device_tuner[adap->id] = pdev;
1548                 fe = adap->fe[0];
1549                 break;
1550         }
1551         default:
1552                 fe = NULL;
1553         }
1554
1555         if (fe == NULL) {
1556                 ret = -ENODEV;
1557                 goto err;
1558         }
1559
1560         return 0;
1561
1562 err:
1563         dev_dbg(&intf->dev, "failed=%d\n", ret);
1564
1565         return ret;
1566 }
1567
1568 static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1569 {
1570         struct state *state = adap_to_priv(adap);
1571         struct dvb_usb_device *d = adap_to_d(adap);
1572         struct usb_interface *intf = d->intf;
1573         int ret;
1574         struct si2157_config si2157_config;
1575
1576         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1577
1578         /* I2C master bus 2 clock speed 300k */
1579         ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
1580         if (ret < 0)
1581                 goto err;
1582
1583         /* I2C master bus 1,3 clock speed 300k */
1584         ret = af9035_wr_reg(d, 0x00f103, 0x07);
1585         if (ret < 0)
1586                 goto err;
1587
1588         /* set gpio11 low */
1589         ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1590         if (ret < 0)
1591                 goto err;
1592
1593         ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1594         if (ret < 0)
1595                 goto err;
1596
1597         ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1598         if (ret < 0)
1599                 goto err;
1600
1601         /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1602         ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1603         if (ret < 0)
1604                 goto err;
1605
1606         ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1607         if (ret < 0)
1608                 goto err;
1609
1610         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1611         if (ret < 0)
1612                 goto err;
1613
1614         msleep(200);
1615
1616         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1617         if (ret < 0)
1618                 goto err;
1619
1620         memset(&si2157_config, 0, sizeof(si2157_config));
1621         si2157_config.fe = adap->fe[0];
1622         si2157_config.if_port = 1;
1623         ret = af9035_add_i2c_dev(d, "si2157", 0x63,
1624                         &si2157_config, state->i2c_adapter_demod);
1625
1626         if (ret)
1627                 goto err;
1628
1629         return 0;
1630
1631 err:
1632         dev_dbg(&intf->dev, "failed=%d\n", ret);
1633
1634         return ret;
1635 }
1636
1637
1638 static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1639 {
1640         struct state *state = adap_to_priv(adap);
1641         struct dvb_usb_device *d = adap_to_d(adap);
1642         struct usb_interface *intf = d->intf;
1643
1644         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1645
1646         if (adap->id == 1) {
1647                 if (state->i2c_client[3])
1648                         af9035_del_i2c_dev(d);
1649         } else if (adap->id == 0) {
1650                 if (state->i2c_client[1])
1651                         af9035_del_i2c_dev(d);
1652         }
1653
1654         return 0;
1655 }
1656
1657
1658 static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1659 {
1660         struct state *state = adap_to_priv(adap);
1661         struct dvb_usb_device *d = adap_to_d(adap);
1662         struct usb_interface *intf = d->intf;
1663
1664         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1665
1666         switch (state->af9033_config[adap->id].tuner) {
1667         case AF9033_TUNER_TUA9001:
1668         case AF9033_TUNER_FC2580:
1669                 if (adap->id == 1) {
1670                         if (state->i2c_client[3])
1671                                 af9035_del_i2c_dev(d);
1672                 } else if (adap->id == 0) {
1673                         if (state->i2c_client[1])
1674                                 af9035_del_i2c_dev(d);
1675                 }
1676                 break;
1677         case AF9033_TUNER_IT9135_38:
1678         case AF9033_TUNER_IT9135_51:
1679         case AF9033_TUNER_IT9135_52:
1680         case AF9033_TUNER_IT9135_60:
1681         case AF9033_TUNER_IT9135_61:
1682         case AF9033_TUNER_IT9135_62:
1683         {
1684                 struct platform_device *pdev;
1685
1686                 pdev = state->platform_device_tuner[adap->id];
1687                 if (pdev) {
1688                         module_put(pdev->dev.driver->owner);
1689                         platform_device_unregister(pdev);
1690                 }
1691                 break;
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_proto 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_PROTO_NEC;
1849                 } else {
1850                         /* NEC extended 24bit */
1851                         key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1852                         proto = RC_PROTO_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_PROTO_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
1878         dev_dbg(&intf->dev, "ir_mode=%02x ir_type=%02x\n",
1879                 state->ir_mode, state->ir_type);
1880
1881         /* don't activate rc if in HID mode or if not available */
1882         if (state->ir_mode == 0x05) {
1883                 switch (state->ir_type) {
1884                 case 0: /* NEC */
1885                 default:
1886                         rc->allowed_protos = RC_PROTO_BIT_NEC |
1887                                         RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32;
1888                         break;
1889                 case 1: /* RC6 */
1890                         rc->allowed_protos = RC_PROTO_BIT_RC6_MCE;
1891                         break;
1892                 }
1893
1894                 rc->query = af9035_rc_query;
1895                 rc->interval = 500;
1896
1897                 /* load empty to enable rc */
1898                 if (!rc->map_name)
1899                         rc->map_name = RC_MAP_EMPTY;
1900         }
1901
1902         return 0;
1903 }
1904 #else
1905         #define af9035_get_rc_config NULL
1906 #endif
1907
1908 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1909                 struct usb_data_stream_properties *stream)
1910 {
1911         struct dvb_usb_device *d = fe_to_d(fe);
1912         struct usb_interface *intf = d->intf;
1913
1914         dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1915
1916         if (d->udev->speed == USB_SPEED_FULL)
1917                 stream->u.bulk.buffersize = 5 * 188;
1918
1919         return 0;
1920 }
1921
1922 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1923 {
1924         struct state *state = adap_to_priv(adap);
1925
1926         return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1927 }
1928
1929 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1930                 int onoff)
1931 {
1932         struct state *state = adap_to_priv(adap);
1933
1934         return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1935 }
1936
1937 static int af9035_probe(struct usb_interface *intf,
1938                 const struct usb_device_id *id)
1939 {
1940         struct usb_device *udev = interface_to_usbdev(intf);
1941         char manufacturer[sizeof("Afatech")];
1942
1943         memset(manufacturer, 0, sizeof(manufacturer));
1944         usb_string(udev, udev->descriptor.iManufacturer,
1945                         manufacturer, sizeof(manufacturer));
1946         /*
1947          * There is two devices having same ID but different chipset. One uses
1948          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1949          * is iManufacturer string.
1950          *
1951          * idVendor           0x0ccd TerraTec Electronic GmbH
1952          * idProduct          0x0099
1953          * bcdDevice            2.00
1954          * iManufacturer           1 Afatech
1955          * iProduct                2 DVB-T 2
1956          *
1957          * idVendor           0x0ccd TerraTec Electronic GmbH
1958          * idProduct          0x0099
1959          * bcdDevice            2.00
1960          * iManufacturer           1 ITE Technologies, Inc.
1961          * iProduct                2 DVB-T TV Stick
1962          */
1963         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1964                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1965                 if (!strcmp("Afatech", manufacturer)) {
1966                         dev_dbg(&udev->dev, "rejecting device\n");
1967                         return -ENODEV;
1968                 }
1969         }
1970
1971         return dvb_usbv2_probe(intf, id);
1972 }
1973
1974 /* interface 0 is used by DVB-T receiver and
1975    interface 1 is for remote controller (HID) */
1976 static const struct dvb_usb_device_properties af9035_props = {
1977         .driver_name = KBUILD_MODNAME,
1978         .owner = THIS_MODULE,
1979         .adapter_nr = adapter_nr,
1980         .size_of_priv = sizeof(struct state),
1981
1982         .generic_bulk_ctrl_endpoint = 0x02,
1983         .generic_bulk_ctrl_endpoint_response = 0x81,
1984
1985         .identify_state = af9035_identify_state,
1986         .download_firmware = af9035_download_firmware,
1987
1988         .i2c_algo = &af9035_i2c_algo,
1989         .read_config = af9035_read_config,
1990         .frontend_attach = af9035_frontend_attach,
1991         .frontend_detach = af9035_frontend_detach,
1992         .tuner_attach = af9035_tuner_attach,
1993         .tuner_detach = af9035_tuner_detach,
1994         .init = af9035_init,
1995         .get_rc_config = af9035_get_rc_config,
1996         .get_stream_config = af9035_get_stream_config,
1997
1998         .get_adapter_count = af9035_get_adapter_count,
1999         .adapter = {
2000                 {
2001                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2002                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2003
2004                         .pid_filter_count = 32,
2005                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2006                         .pid_filter = af9035_pid_filter,
2007
2008                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2009                 }, {
2010                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2011                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2012
2013                         .pid_filter_count = 32,
2014                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2015                         .pid_filter = af9035_pid_filter,
2016
2017                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2018                 },
2019         },
2020 };
2021
2022 static const struct dvb_usb_device_properties it930x_props = {
2023         .driver_name = KBUILD_MODNAME,
2024         .owner = THIS_MODULE,
2025         .adapter_nr = adapter_nr,
2026         .size_of_priv = sizeof(struct state),
2027
2028         .generic_bulk_ctrl_endpoint = 0x02,
2029         .generic_bulk_ctrl_endpoint_response = 0x81,
2030
2031         .identify_state = af9035_identify_state,
2032         .download_firmware = af9035_download_firmware,
2033
2034         .i2c_algo = &af9035_i2c_algo,
2035         .read_config = af9035_read_config,
2036         .frontend_attach = it930x_frontend_attach,
2037         .frontend_detach = af9035_frontend_detach,
2038         .tuner_attach = it930x_tuner_attach,
2039         .tuner_detach = it930x_tuner_detach,
2040         .init = it930x_init,
2041         .get_stream_config = af9035_get_stream_config,
2042
2043         .get_adapter_count = af9035_get_adapter_count,
2044         .adapter = {
2045                 {
2046                         .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2047                 }, {
2048                         .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2049                 },
2050         },
2051 };
2052
2053 static const struct usb_device_id af9035_id_table[] = {
2054         /* AF9035 devices */
2055         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2056                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2057         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2058                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2059         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2060                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2061         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2062                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2063         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2064                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2065         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2066                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
2067         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2068                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2069         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2070                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2071         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2072                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2073         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2074                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2075         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2076                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2077         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2078                 &af9035_props, "Asus U3100Mini Plus", NULL) },
2079         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2080                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2081         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2082                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2083        { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_EVOLVEO_XTRATV_STICK,
2084                &af9035_props, "EVOLVEO XtraTV stick", NULL) },
2085
2086         /* IT9135 devices */
2087         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2088                 &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2089         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2090                 &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2091         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2092                 &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2093         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2094                 &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2095         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2096                 &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2097         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2098                 &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2099         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2100                 &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
2101         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2102                 &af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2103         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2104                 &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2105         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2106                 &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2107         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2108                 &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2109                                                         RC_MAP_IT913X_V1) },
2110         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2111                 &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2112                                                         RC_MAP_IT913X_V1) },
2113         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_T1,
2114                 &af9035_props, "TerraTec T1", RC_MAP_IT913X_V1) },
2115         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2116         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2117                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2118                 NULL) },
2119         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2120                 &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2121         { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2122                 &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2123         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2124                 &af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2125         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2126                 &af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2127
2128         /* IT930x devices */
2129         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2130                 &it930x_props, "ITE 9303 Generic", NULL) },
2131         { }
2132 };
2133 MODULE_DEVICE_TABLE(usb, af9035_id_table);
2134
2135 static struct usb_driver af9035_usb_driver = {
2136         .name = KBUILD_MODNAME,
2137         .id_table = af9035_id_table,
2138         .probe = af9035_probe,
2139         .disconnect = dvb_usbv2_disconnect,
2140         .suspend = dvb_usbv2_suspend,
2141         .resume = dvb_usbv2_resume,
2142         .reset_resume = dvb_usbv2_reset_resume,
2143         .no_dynamic_id = 1,
2144         .soft_unbind = 1,
2145 };
2146
2147 module_usb_driver(af9035_usb_driver);
2148
2149 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2150 MODULE_DESCRIPTION("Afatech AF9035 driver");
2151 MODULE_LICENSE("GPL");
2152 /*(DEBLOBBED)*/