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         int ret, wlen, rlen;
  53         u16 checksum, tmp_checksum;
  54
  55         mutex_lock(&d->usb_mutex);
  56
  57         /* buffer overflow check */
  58         if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
  59                         req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
  60                 dev_err(&d->udev->dev, "%s: too much data wlen=%d rlen=%d\n",
  61                                 KBUILD_MODNAME, req->wlen, req->rlen);
  62                 ret = -EINVAL;
  63                 goto exit;
  64         }
  65
  66         state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
  67         state->buf[1] = req->mbox;
  68         state->buf[2] = req->cmd;
  69         state->buf[3] = state->seq++;
  70         memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
  71
  72         wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
  73         rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
  74
  75         /* calc and add checksum */
  76         checksum = af9035_checksum(state->buf, state->buf[0] - 1);
  77         state->buf[state->buf[0] - 1] = (checksum >> 8);
  78         state->buf[state->buf[0] - 0] = (checksum & 0xff);
  79
  80         /* no ack for these packets */
  81         if (req->cmd == CMD_FW_DL)
  82                 rlen = 0;
  83
  84         ret = dvb_usbv2_generic_rw_locked(d,
  85                         state->buf, wlen, state->buf, rlen);
  86         if (ret)
  87                 goto exit;
  88
  89         /* no ack for those packets */
  90         if (req->cmd == CMD_FW_DL)
  91                 goto exit;
  92
  93         /* verify checksum */
  94         checksum = af9035_checksum(state->buf, rlen - 2);
  95         tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
  96         if (tmp_checksum != checksum) {
  97                 dev_err(&d->udev->dev,
  98                                 "%s: command=%02x checksum mismatch (%04x != %04x)\n",
  99                                 KBUILD_MODNAME, req->cmd, tmp_checksum,
 100                                 checksum);
 101                 ret = -EIO;
 102                 goto exit;
 103         }
 104
 105         /* check status */
 106         if (state->buf[2]) {
 107                 /* fw returns status 1 when IR code was not received */
 108                 if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
 109                         ret = 1;
 110                         goto exit;
 111                 }
 112
 113                 dev_dbg(&d->udev->dev, "%s: command=%02x failed fw error=%d\n",
 114                                 __func__, req->cmd, state->buf[2]);
 115                 ret = -EIO;
 116                 goto exit;
 117         }
 118
 119         /* read request, copy returned data to return buf */
 120         if (req->rlen)
 121                 memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 122 exit:
 123         mutex_unlock(&d->usb_mutex);
 124         if (ret < 0)
 125                 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 126         return ret;
 127 }
 128
 129 /* write multiple registers */
 130 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 131 {
 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(&d->udev->dev, "%s: i2c wr: len=%d is too big!\n",
 138                          KBUILD_MODNAME, len);
 139                 return -EOPNOTSUPP;
 140         }
 141
 142         wbuf[0] = len;
 143         wbuf[1] = 2;
 144         wbuf[2] = 0;
 145         wbuf[3] = 0;
 146         wbuf[4] = (reg >> 8) & 0xff;
 147         wbuf[5] = (reg >> 0) & 0xff;
 148         memcpy(&wbuf[6], val, len);
 149
 150         return af9035_ctrl_msg(d, &req);
 151 }
 152
 153 /* read multiple registers */
 154 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 155 {
 156         u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 157         u8 mbox = (reg >> 16) & 0xff;
 158         struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 159
 160         return af9035_ctrl_msg(d, &req);
 161 }
 162
 163 /* write single register */
 164 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 165 {
 166         return af9035_wr_regs(d, reg, &val, 1);
 167 }
 168
 169 /* read single register */
 170 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 171 {
 172         return af9035_rd_regs(d, reg, val, 1);
 173 }
 174
 175 /* write single register with mask */
 176 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 177                 u8 mask)
 178 {
 179         int ret;
 180         u8 tmp;
 181
 182         /* no need for read if whole reg is written */
 183         if (mask != 0xff) {
 184                 ret = af9035_rd_regs(d, reg, &tmp, 1);
 185                 if (ret)
 186                         return ret;
 187
 188                 val &= mask;
 189                 tmp &= ~mask;
 190                 val |= tmp;
 191         }
 192
 193         return af9035_wr_regs(d, reg, &val, 1);
 194 }
 195
 196 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 197                 struct i2c_msg msg[], int num)
 198 {
 199         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 200         struct state *state = d_to_priv(d);
 201         int ret;
 202
 203         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 204                 return -EAGAIN;
 205
 206         /*
 207          * I2C sub header is 5 bytes long. Meaning of those bytes are:
 208          * 0: data len
 209          * 1: I2C addr << 1
 210          * 2: reg addr len
 211          *    byte 3 and 4 can be used as reg addr
 212          * 3: reg addr MSB
 213          *    used when reg addr len is set to 2
 214          * 4: reg addr LSB
 215          *    used when reg addr len is set to 1 or 2
 216          *
 217          * For the simplify we do not use register addr at all.
 218          * NOTE: As a firmware knows tuner type there is very small possibility
 219          * there could be some tuner I2C hacks done by firmware and this may
 220          * lead problems if firmware expects those bytes are used.
 221          */
 222         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 223                         (msg[1].flags & I2C_M_RD)) {
 224                 if (msg[0].len > 40 || msg[1].len > 40) {
 225                         /* TODO: correct limits > 40 */
 226                         ret = -EOPNOTSUPP;
 227                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 228                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 229                         /* demod access via firmware interface */
 230                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 231                                         msg[0].buf[2];
 232
 233                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 234                                 reg |= 0x100000;
 235
 236                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 237                                         msg[1].len);
 238                 } else {
 239                         /* I2C */
 240                         u8 buf[MAX_XFER_SIZE];
 241                         struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
 242                                         buf, msg[1].len, msg[1].buf };
 243
 244                         if (5 + msg[0].len > sizeof(buf)) {
 245                                 dev_warn(&d->udev->dev,
 246                                          "%s: i2c xfer: len=%d is too big!\n",
 247                                          KBUILD_MODNAME, msg[0].len);
 248                                 ret = -EOPNOTSUPP;
 249                                 goto unlock;
 250                         }
 251                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 252                         buf[0] = msg[1].len;
 253                         buf[1] = msg[0].addr << 1;
 254                         buf[2] = 0x00; /* reg addr len */
 255                         buf[3] = 0x00; /* reg addr MSB */
 256                         buf[4] = 0x00; /* reg addr LSB */
 257                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 258                         ret = af9035_ctrl_msg(d, &req);
 259                 }
 260         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 261                 if (msg[0].len > 40) {
 262                         /* TODO: correct limits > 40 */
 263                         ret = -EOPNOTSUPP;
 264                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 265                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 266                         /* demod access via firmware interface */
 267                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 268                                         msg[0].buf[2];
 269
 270                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 271                                 reg |= 0x100000;
 272
 273                         ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
 274                                         msg[0].len - 3);
 275                 } else {
 276                         /* I2C */
 277                         u8 buf[MAX_XFER_SIZE];
 278                         struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 279                                         buf, 0, NULL };
 280
 281                         if (5 + msg[0].len > sizeof(buf)) {
 282                                 dev_warn(&d->udev->dev,
 283                                          "%s: i2c xfer: len=%d is too big!\n",
 284                                          KBUILD_MODNAME, msg[0].len);
 285                                 ret = -EOPNOTSUPP;
 286                                 goto unlock;
 287                         }
 288                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 289                         buf[0] = msg[0].len;
 290                         buf[1] = msg[0].addr << 1;
 291                         buf[2] = 0x00; /* reg addr len */
 292                         buf[3] = 0x00; /* reg addr MSB */
 293                         buf[4] = 0x00; /* reg addr LSB */
 294                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 295                         ret = af9035_ctrl_msg(d, &req);
 296                 }
 297         } else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 298                 if (msg[0].len > 40) {
 299                         /* TODO: correct limits > 40 */
 300                         ret = -EOPNOTSUPP;
 301                 } else {
 302                         /* I2C */
 303                         u8 buf[5];
 304                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 305                                         buf, msg[0].len, msg[0].buf };
 306                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 307                         buf[0] = msg[0].len;
 308                         buf[1] = msg[0].addr << 1;
 309                         buf[2] = 0x00; /* reg addr len */
 310                         buf[3] = 0x00; /* reg addr MSB */
 311                         buf[4] = 0x00; /* reg addr LSB */
 312                         ret = af9035_ctrl_msg(d, &req);
 313                 }
 314         } else {
 315                 /*
 316                  * We support only three kind of I2C transactions:
 317                  * 1) 1 x read + 1 x write (repeated start)
 318                  * 2) 1 x write
 319                  * 3) 1 x read
 320                  */
 321                 ret = -EOPNOTSUPP;
 322         }
 323
 324 unlock:
 325         mutex_unlock(&d->i2c_mutex);
 326
 327         if (ret < 0)
 328                 return ret;
 329         else
 330                 return num;
 331 }
 332
 333 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 334 {
 335         return I2C_FUNC_I2C;
 336 }
 337
 338 static struct i2c_algorithm af9035_i2c_algo = {
 339         .master_xfer = af9035_i2c_master_xfer,
 340         .functionality = af9035_i2c_functionality,
 341 };
 342
 343 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 344 {
 345         struct state *state = d_to_priv(d);
 346         int ret;
 347         u8 wbuf[1] = { 1 };
 348         u8 rbuf[4];
 349         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 350                         sizeof(rbuf), rbuf };
 351
 352         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 353         if (ret < 0)
 354                 goto err;
 355
 356         state->chip_version = rbuf[0];
 357         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 358
 359         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 360         if (ret < 0)
 361                 goto err;
 362
 363         dev_info(&d->udev->dev,
 364                         "%s: prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 365                         KBUILD_MODNAME, state->prechip_version,
 366                         state->chip_version, state->chip_type);
 367
 368         if (state->chip_type == 0x9135) {
 369                 if (state->chip_version == 0x02)
 370                         *name = AF9035_FIRMWARE_IT9135_V2;
 371                 else
 372                         *name = AF9035_FIRMWARE_IT9135_V1;
 373                 state->eeprom_addr = EEPROM_BASE_IT9135;
 374         } else {
 375                 *name = AF9035_FIRMWARE_AF9035;
 376                 state->eeprom_addr = EEPROM_BASE_AF9035;
 377         }
 378
 379         ret = af9035_ctrl_msg(d, &req);
 380         if (ret < 0)
 381                 goto err;
 382
 383         dev_dbg(&d->udev->dev, "%s: reply=%*ph\n", __func__, 4, rbuf);
 384         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 385                 ret = WARM;
 386         else
 387                 ret = COLD;
 388
 389         return ret;
 390
 391 err:
 392         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 393
 394         return ret;
 395 }
 396
 397 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 398                 const struct firmware *fw)
 399 {
 400         int ret, i, j, len;
 401         u8 wbuf[1];
 402         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 403         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 404         u8 hdr_core;
 405         u16 hdr_addr, hdr_data_len, hdr_checksum;
 406         #define MAX_DATA 58
 407         #define HDR_SIZE 7
 408
 409         /*
 410          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 411          *
 412          * byte 0: MCS 51 core
 413          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 414          *  address spaces
 415          * byte 1-2: Big endian destination address
 416          * byte 3-4: Big endian number of data bytes following the header
 417          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 418          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 419          */
 420
 421         for (i = fw->size; i > HDR_SIZE;) {
 422                 hdr_core = fw->data[fw->size - i + 0];
 423                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 424                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 425                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 426                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 427                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 428                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 429
 430                 dev_dbg(&d->udev->dev,
 431                                 "%s: core=%d addr=%04x data_len=%d checksum=%04x\n",
 432                                 __func__, hdr_core, hdr_addr, hdr_data_len,
 433                                 hdr_checksum);
 434
 435                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 436                                 (hdr_data_len > i)) {
 437                         dev_dbg(&d->udev->dev, "%s: bad firmware\n", __func__);
 438                         break;
 439                 }
 440
 441                 /* download begin packet */
 442                 req.cmd = CMD_FW_DL_BEGIN;
 443                 ret = af9035_ctrl_msg(d, &req);
 444                 if (ret < 0)
 445                         goto err;
 446
 447                 /* download firmware packet(s) */
 448                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 449                         len = j;
 450                         if (len > MAX_DATA)
 451                                 len = MAX_DATA;
 452                         req_fw_dl.wlen = len;
 453                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 454                                         HDR_SIZE + hdr_data_len - j];
 455                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 456                         if (ret < 0)
 457                                 goto err;
 458                 }
 459
 460                 /* download end packet */
 461                 req.cmd = CMD_FW_DL_END;
 462                 ret = af9035_ctrl_msg(d, &req);
 463                 if (ret < 0)
 464                         goto err;
 465
 466                 i -= hdr_data_len + HDR_SIZE;
 467
 468                 dev_dbg(&d->udev->dev, "%s: data uploaded=%zu\n",
 469                                 __func__, fw->size - i);
 470         }
 471
 472         /* print warn if firmware is bad, continue and see what happens */
 473         if (i)
 474                 dev_warn(&d->udev->dev, "%s: bad firmware\n", KBUILD_MODNAME);
 475
 476         return 0;
 477
 478 err:
 479         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 480
 481         return ret;
 482 }
 483
 484 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 485                 const struct firmware *fw)
 486 {
 487         int ret, i, i_prev;
 488         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 489         #define HDR_SIZE 7
 490
 491         /*
 492          * There seems to be following firmware header. Meaning of bytes 0-3
 493          * is unknown.
 494          *
 495          * 0: 3
 496          * 1: 0, 1
 497          * 2: 0
 498          * 3: 1, 2, 3
 499          * 4: addr MSB
 500          * 5: addr LSB
 501          * 6: count of data bytes ?
 502          */
 503         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 504                 if (i == fw->size ||
 505                                 (fw->data[i + 0] == 0x03 &&
 506                                 (fw->data[i + 1] == 0x00 ||
 507                                 fw->data[i + 1] == 0x01) &&
 508                                 fw->data[i + 2] == 0x00)) {
 509                         req_fw_dl.wlen = i - i_prev;
 510                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 511                         i_prev = i;
 512                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 513                         if (ret < 0)
 514                                 goto err;
 515
 516                         dev_dbg(&d->udev->dev, "%s: data uploaded=%d\n",
 517                                         __func__, i);
 518                 }
 519         }
 520
 521         return 0;
 522
 523 err:
 524         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 525
 526         return ret;
 527 }
 528
 529 static int af9035_download_firmware(struct dvb_usb_device *d,
 530                 const struct firmware *fw)
 531 {
 532         struct state *state = d_to_priv(d);
 533         int ret;
 534         u8 wbuf[1];
 535         u8 rbuf[4];
 536         u8 tmp;
 537         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 538         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 539         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 540
 541         /*
 542          * In case of dual tuner configuration we need to do some extra
 543          * initialization in order to download firmware to slave demod too,
 544          * which is done by master demod.
 545          * Master feeds also clock and controls power via GPIO.
 546          */
 547         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp);
 548         if (ret < 0)
 549                 goto err;
 550
 551         if (tmp == 1 || tmp == 3) {
 552                 /* configure gpioh1, reset & power slave demod */
 553                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 554                 if (ret < 0)
 555                         goto err;
 556
 557                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 558                 if (ret < 0)
 559                         goto err;
 560
 561                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 562                 if (ret < 0)
 563                         goto err;
 564
 565                 usleep_range(10000, 50000);
 566
 567                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 568                 if (ret < 0)
 569                         goto err;
 570
 571                 /* tell the slave I2C address */
 572                 ret = af9035_rd_reg(d,
 573                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 574                                 &tmp);
 575                 if (ret < 0)
 576                         goto err;
 577
 578                 /* use default I2C address if eeprom has no address set */
 579                 if (!tmp)
 580                         tmp = 0x3a;
 581
 582                 if (state->chip_type == 0x9135) {
 583                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 584                         if (ret < 0)
 585                                 goto err;
 586                 } else {
 587                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 588                         if (ret < 0)
 589                                 goto err;
 590
 591                         /* enable clock out */
 592                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 593                         if (ret < 0)
 594                                 goto err;
 595                 }
 596         }
 597
 598         if (fw->data[0] == 0x01)
 599                 ret = af9035_download_firmware_old(d, fw);
 600         else
 601                 ret = af9035_download_firmware_new(d, fw);
 602         if (ret < 0)
 603                 goto err;
 604
 605         /* firmware loaded, request boot */
 606         req.cmd = CMD_FW_BOOT;
 607         ret = af9035_ctrl_msg(d, &req);
 608         if (ret < 0)
 609                 goto err;
 610
 611         /* ensure firmware starts */
 612         wbuf[0] = 1;
 613         ret = af9035_ctrl_msg(d, &req_fw_ver);
 614         if (ret < 0)
 615                 goto err;
 616
 617         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 618                 dev_err(&d->udev->dev, "%s: firmware did not run\n",
 619                                 KBUILD_MODNAME);
 620                 ret = -ENODEV;
 621                 goto err;
 622         }
 623
 624         dev_info(&d->udev->dev, "%s: firmware version=%d.%d.%d.%d",
 625                         KBUILD_MODNAME, rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 626
 627         return 0;
 628
 629 err:
 630         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 631
 632         return ret;
 633 }
 634
 635 static int af9035_read_config(struct dvb_usb_device *d)
 636 {
 637         struct state *state = d_to_priv(d);
 638         int ret, i;
 639         u8 tmp;
 640         u16 tmp16, addr;
 641
 642         /* demod I2C "address" */
 643         state->af9033_config[0].i2c_addr = 0x38;
 644         state->af9033_config[1].i2c_addr = 0x3a;
 645         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 646         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 647         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 648         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 649
 650         /* eeprom memory mapped location */
 651         if (state->chip_type == 0x9135) {
 652                 if (state->chip_version == 0x02) {
 653                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 654                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 655                         tmp16 = 0x00461d;
 656                 } else {
 657                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 658                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 659                         tmp16 = 0x00461b;
 660                 }
 661
 662                 /* check if eeprom exists */
 663                 ret = af9035_rd_reg(d, tmp16, &tmp);
 664                 if (ret < 0)
 665                         goto err;
 666
 667                 if (tmp == 0x00) {
 668                         dev_dbg(&d->udev->dev, "%s: no eeprom\n", __func__);
 669                         goto skip_eeprom;
 670                 }
 671         }
 672
 673         /* check if there is dual tuners */
 674         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp);
 675         if (ret < 0)
 676                 goto err;
 677
 678         if (tmp == 1 || tmp == 3)
 679                 state->dual_mode = true;
 680
 681         dev_dbg(&d->udev->dev, "%s: ts mode=%d dual mode=%d\n", __func__,
 682                         tmp, state->dual_mode);
 683
 684         if (state->dual_mode) {
 685                 /* read 2nd demodulator I2C address */
 686                 ret = af9035_rd_reg(d,
 687                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 688                                 &tmp);
 689                 if (ret < 0)
 690                         goto err;
 691
 692                 if (tmp)
 693                         state->af9033_config[1].i2c_addr = tmp;
 694
 695                 dev_dbg(&d->udev->dev, "%s: 2nd demod I2C addr=%02x\n",
 696                                 __func__, tmp);
 697         }
 698
 699         addr = state->eeprom_addr;
 700
 701         for (i = 0; i < state->dual_mode + 1; i++) {
 702                 /* tuner */
 703                 ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
 704                 if (ret < 0)
 705                         goto err;
 706
 707                 if (tmp == 0x00)
 708                         dev_dbg(&d->udev->dev,
 709                                         "%s: [%d]tuner not set, using default\n",
 710                                         __func__, i);
 711                 else
 712                         state->af9033_config[i].tuner = tmp;
 713
 714                 dev_dbg(&d->udev->dev, "%s: [%d]tuner=%02x\n",
 715                                 __func__, i, state->af9033_config[i].tuner);
 716
 717                 switch (state->af9033_config[i].tuner) {
 718                 case AF9033_TUNER_TUA9001:
 719                 case AF9033_TUNER_FC0011:
 720                 case AF9033_TUNER_MXL5007T:
 721                 case AF9033_TUNER_TDA18218:
 722                 case AF9033_TUNER_FC2580:
 723                 case AF9033_TUNER_FC0012:
 724                         state->af9033_config[i].spec_inv = 1;
 725                         break;
 726                 case AF9033_TUNER_IT9135_38:
 727                 case AF9033_TUNER_IT9135_51:
 728                 case AF9033_TUNER_IT9135_52:
 729                 case AF9033_TUNER_IT9135_60:
 730                 case AF9033_TUNER_IT9135_61:
 731                 case AF9033_TUNER_IT9135_62:
 732                         break;
 733                 default:
 734                         dev_warn(&d->udev->dev,
 735                                         "%s: tuner id=%02x not supported, please report!",
 736                                         KBUILD_MODNAME, tmp);
 737                 }
 738
 739                 /* disable dual mode if driver does not support it */
 740                 if (i == 1)
 741                         switch (state->af9033_config[i].tuner) {
 742                         case AF9033_TUNER_FC0012:
 743                         case AF9033_TUNER_IT9135_38:
 744                         case AF9033_TUNER_IT9135_51:
 745                         case AF9033_TUNER_IT9135_52:
 746                         case AF9033_TUNER_IT9135_60:
 747                         case AF9033_TUNER_IT9135_61:
 748                         case AF9033_TUNER_IT9135_62:
 749                         case AF9033_TUNER_MXL5007T:
 750                                 break;
 751                         default:
 752                                 state->dual_mode = false;
 753                                 dev_info(&d->udev->dev,
 754                                                 "%s: driver does not support 2nd tuner and will disable it",
 755                                                 KBUILD_MODNAME);
 756                 }
 757
 758                 /* tuner IF frequency */
 759                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
 760                 if (ret < 0)
 761                         goto err;
 762
 763                 tmp16 = tmp;
 764
 765                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
 766                 if (ret < 0)
 767                         goto err;
 768
 769                 tmp16 |= tmp << 8;
 770
 771                 dev_dbg(&d->udev->dev, "%s: [%d]IF=%d\n", __func__, i, tmp16);
 772
 773                 addr += 0x10; /* shift for the 2nd tuner params */
 774         }
 775
 776 skip_eeprom:
 777         /* get demod clock */
 778         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 779         if (ret < 0)
 780                 goto err;
 781
 782         tmp = (tmp >> 0) & 0x0f;
 783
 784         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 785                 if (state->chip_type == 0x9135)
 786                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 787                 else
 788                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 789         }
 790
 791         return 0;
 792
 793 err:
 794         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 795
 796         return ret;
 797 }
 798
 799 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
 800                 int cmd, int arg)
 801 {
 802         int ret;
 803         u8 val;
 804
 805         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 806
 807         /*
 808          * CEN     always enabled by hardware wiring
 809          * RESETN  GPIOT3
 810          * RXEN    GPIOT2
 811          */
 812
 813         switch (cmd) {
 814         case TUA9001_CMD_RESETN:
 815                 if (arg)
 816                         val = 0x00;
 817                 else
 818                         val = 0x01;
 819
 820                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
 821                 if (ret < 0)
 822                         goto err;
 823                 break;
 824         case TUA9001_CMD_RXEN:
 825                 if (arg)
 826                         val = 0x01;
 827                 else
 828                         val = 0x00;
 829
 830                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
 831                 if (ret < 0)
 832                         goto err;
 833                 break;
 834         }
 835
 836         return 0;
 837
 838 err:
 839         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 840
 841         return ret;
 842 }
 843
 844
 845 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
 846                 int cmd, int arg)
 847 {
 848         int ret;
 849
 850         switch (cmd) {
 851         case FC0011_FE_CALLBACK_POWER:
 852                 /* Tuner enable */
 853                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
 854                 if (ret < 0)
 855                         goto err;
 856
 857                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
 858                 if (ret < 0)
 859                         goto err;
 860
 861                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
 862                 if (ret < 0)
 863                         goto err;
 864
 865                 /* LED */
 866                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
 867                 if (ret < 0)
 868                         goto err;
 869
 870                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
 871                 if (ret < 0)
 872                         goto err;
 873
 874                 usleep_range(10000, 50000);
 875                 break;
 876         case FC0011_FE_CALLBACK_RESET:
 877                 ret = af9035_wr_reg(d, 0xd8e9, 1);
 878                 if (ret < 0)
 879                         goto err;
 880
 881                 ret = af9035_wr_reg(d, 0xd8e8, 1);
 882                 if (ret < 0)
 883                         goto err;
 884
 885                 ret = af9035_wr_reg(d, 0xd8e7, 1);
 886                 if (ret < 0)
 887                         goto err;
 888
 889                 usleep_range(10000, 20000);
 890
 891                 ret = af9035_wr_reg(d, 0xd8e7, 0);
 892                 if (ret < 0)
 893                         goto err;
 894
 895                 usleep_range(10000, 20000);
 896                 break;
 897         default:
 898                 ret = -EINVAL;
 899                 goto err;
 900         }
 901
 902         return 0;
 903
 904 err:
 905         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 906
 907         return ret;
 908 }
 909
 910 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 911 {
 912         struct state *state = d_to_priv(d);
 913
 914         switch (state->af9033_config[0].tuner) {
 915         case AF9033_TUNER_FC0011:
 916                 return af9035_fc0011_tuner_callback(d, cmd, arg);
 917         case AF9033_TUNER_TUA9001:
 918                 return af9035_tua9001_tuner_callback(d, cmd, arg);
 919         default:
 920                 break;
 921         }
 922
 923         return 0;
 924 }
 925
 926 static int af9035_frontend_callback(void *adapter_priv, int component,
 927                                     int cmd, int arg)
 928 {
 929         struct i2c_adapter *adap = adapter_priv;
 930         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 931
 932         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 933                         __func__, component, cmd, arg);
 934
 935         switch (component) {
 936         case DVB_FRONTEND_COMPONENT_TUNER:
 937                 return af9035_tuner_callback(d, cmd, arg);
 938         default:
 939                 break;
 940         }
 941
 942         return 0;
 943 }
 944
 945 static int af9035_get_adapter_count(struct dvb_usb_device *d)
 946 {
 947         struct state *state = d_to_priv(d);
 948         return state->dual_mode + 1;
 949 }
 950
 951 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
 952 {
 953         struct state *state = adap_to_priv(adap);
 954         struct dvb_usb_device *d = adap_to_d(adap);
 955         int ret;
 956         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 957
 958         if (!state->af9033_config[adap->id].tuner) {
 959                 /* unsupported tuner */
 960                 ret = -ENODEV;
 961                 goto err;
 962         }
 963
 964         /* attach demodulator */
 965         adap->fe[0] = dvb_attach(af9033_attach, &state->af9033_config[adap->id],
 966                         &d->i2c_adap, &state->ops);
 967         if (adap->fe[0] == NULL) {
 968                 ret = -ENODEV;
 969                 goto err;
 970         }
 971
 972         /* disable I2C-gate */
 973         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
 974         adap->fe[0]->callback = af9035_frontend_callback;
 975
 976         return 0;
 977
 978 err:
 979         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 980
 981         return ret;
 982 }
 983
 984 static struct tua9001_config af9035_tua9001_config = {
 985         .i2c_addr = 0x60,
 986 };
 987
 988 static const struct fc0011_config af9035_fc0011_config = {
 989         .i2c_address = 0x60,
 990 };
 991
 992 static struct mxl5007t_config af9035_mxl5007t_config[] = {
 993         {
 994                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
 995                 .if_freq_hz = MxL_IF_4_57_MHZ,
 996                 .invert_if = 0,
 997                 .loop_thru_enable = 0,
 998                 .clk_out_enable = 0,
 999                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1000         }, {
1001                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1002                 .if_freq_hz = MxL_IF_4_57_MHZ,
1003                 .invert_if = 0,
1004                 .loop_thru_enable = 1,
1005                 .clk_out_enable = 1,
1006                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1007         }
1008 };
1009
1010 static struct tda18218_config af9035_tda18218_config = {
1011         .i2c_address = 0x60,
1012         .i2c_wr_max = 21,
1013 };
1014
1015 static const struct fc2580_config af9035_fc2580_config = {
1016         .i2c_addr = 0x56,
1017         .clock = 16384000,
1018 };
1019
1020 static const struct fc0012_config af9035_fc0012_config[] = {
1021         {
1022                 .i2c_address = 0x63,
1023                 .xtal_freq = FC_XTAL_36_MHZ,
1024                 .dual_master = true,
1025                 .loop_through = true,
1026                 .clock_out = true,
1027         }, {
1028                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1029                 .xtal_freq = FC_XTAL_36_MHZ,
1030                 .dual_master = true,
1031         }
1032 };
1033
1034 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1035 {
1036         struct state *state = adap_to_priv(adap);
1037         struct dvb_usb_device *d = adap_to_d(adap);
1038         int ret;
1039         struct dvb_frontend *fe;
1040         struct i2c_msg msg[1];
1041         u8 tuner_addr;
1042         dev_dbg(&d->udev->dev, "%s:\n", __func__);
1043
1044         /*
1045          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1046          * to carry info about used I2C bus for dual tuner configuration.
1047          */
1048
1049         switch (state->af9033_config[adap->id].tuner) {
1050         case AF9033_TUNER_TUA9001:
1051                 /* AF9035 gpiot3 = TUA9001 RESETN
1052                    AF9035 gpiot2 = TUA9001 RXEN */
1053
1054                 /* configure gpiot2 and gpiot2 as output */
1055                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1056                 if (ret < 0)
1057                         goto err;
1058
1059                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1060                 if (ret < 0)
1061                         goto err;
1062
1063                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1064                 if (ret < 0)
1065                         goto err;
1066
1067                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1068                 if (ret < 0)
1069                         goto err;
1070
1071                 /* attach tuner */
1072                 fe = dvb_attach(tua9001_attach, adap->fe[0],
1073                                 &d->i2c_adap, &af9035_tua9001_config);
1074                 break;
1075         case AF9033_TUNER_FC0011:
1076                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1077                                 &d->i2c_adap, &af9035_fc0011_config);
1078                 break;
1079         case AF9033_TUNER_MXL5007T:
1080                 if (adap->id == 0) {
1081                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1082                         if (ret < 0)
1083                                 goto err;
1084
1085                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1086                         if (ret < 0)
1087                                 goto err;
1088
1089                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1090                         if (ret < 0)
1091                                 goto err;
1092
1093                         msleep(30);
1094
1095                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1096                         if (ret < 0)
1097                                 goto err;
1098
1099                         msleep(300);
1100
1101                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1102                         if (ret < 0)
1103                                 goto err;
1104
1105                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1106                         if (ret < 0)
1107                                 goto err;
1108
1109                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1110                         if (ret < 0)
1111                                 goto err;
1112
1113                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1114                         if (ret < 0)
1115                                 goto err;
1116
1117                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1118                         if (ret < 0)
1119                                 goto err;
1120
1121                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1122                         if (ret < 0)
1123                                 goto err;
1124
1125                         tuner_addr = 0x60;
1126                 } else {
1127                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1128                 }
1129
1130                 /* attach tuner */
1131                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1132                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1133                 break;
1134         case AF9033_TUNER_TDA18218:
1135                 /* attach tuner */
1136                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1137                                 &d->i2c_adap, &af9035_tda18218_config);
1138                 break;
1139         case AF9033_TUNER_FC2580:
1140                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1141                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1142                 if (ret < 0)
1143                         goto err;
1144
1145                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1146                 if (ret < 0)
1147                         goto err;
1148
1149                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1150                 if (ret < 0)
1151                         goto err;
1152
1153                 usleep_range(10000, 50000);
1154                 /* attach tuner */
1155                 fe = dvb_attach(fc2580_attach, adap->fe[0],
1156                                 &d->i2c_adap, &af9035_fc2580_config);
1157                 break;
1158         case AF9033_TUNER_FC0012:
1159                 /*
1160                  * AF9035 gpiot2 = FC0012 enable
1161                  * XXX: there seems to be something on gpioh8 too, but on my
1162                  * my test I didn't find any difference.
1163                  */
1164
1165                 if (adap->id == 0) {
1166                         /* configure gpiot2 as output and high */
1167                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1168                         if (ret < 0)
1169                                 goto err;
1170
1171                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1172                         if (ret < 0)
1173                                 goto err;
1174
1175                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1176                         if (ret < 0)
1177                                 goto err;
1178                 } else {
1179                         /*
1180                          * FIXME: That belongs for the FC0012 driver.
1181                          * Write 02 to FC0012 master tuner register 0d directly
1182                          * in order to make slave tuner working.
1183                          */
1184                         msg[0].addr = 0x63;
1185                         msg[0].flags = 0;
1186                         msg[0].len = 2;
1187                         msg[0].buf = "\x0d\x02";
1188                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1189                         if (ret < 0)
1190                                 goto err;
1191                 }
1192
1193                 usleep_range(10000, 50000);
1194
1195                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1196                                 &af9035_fc0012_config[adap->id]);
1197                 break;
1198         case AF9033_TUNER_IT9135_38:
1199         case AF9033_TUNER_IT9135_51:
1200         case AF9033_TUNER_IT9135_52:
1201         case AF9033_TUNER_IT9135_60:
1202         case AF9033_TUNER_IT9135_61:
1203         case AF9033_TUNER_IT9135_62:
1204                 /* attach tuner */
1205                 fe = dvb_attach(it913x_attach, adap->fe[0], &d->i2c_adap,
1206                                 state->af9033_config[adap->id].i2c_addr,
1207                                 state->af9033_config[0].tuner);
1208                 break;
1209         default:
1210                 fe = NULL;
1211         }
1212
1213         if (fe == NULL) {
1214                 ret = -ENODEV;
1215                 goto err;
1216         }
1217
1218         return 0;
1219
1220 err:
1221         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1222
1223         return ret;
1224 }
1225
1226 static int af9035_init(struct dvb_usb_device *d)
1227 {
1228         struct state *state = d_to_priv(d);
1229         int ret, i;
1230         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1231         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1232         struct reg_val_mask tab[] = {
1233                 { 0x80f99d, 0x01, 0x01 },
1234                 { 0x80f9a4, 0x01, 0x01 },
1235                 { 0x00dd11, 0x00, 0x20 },
1236                 { 0x00dd11, 0x00, 0x40 },
1237                 { 0x00dd13, 0x00, 0x20 },
1238                 { 0x00dd13, 0x00, 0x40 },
1239                 { 0x00dd11, 0x20, 0x20 },
1240                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1241                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1242                 { 0x00dd0c, packet_size, 0xff},
1243                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1244                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1245                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1246                 { 0x00dd0d, packet_size, 0xff },
1247                 { 0x80f9a3, state->dual_mode, 0x01 },
1248                 { 0x80f9cd, state->dual_mode, 0x01 },
1249                 { 0x80f99d, 0x00, 0x01 },
1250                 { 0x80f9a4, 0x00, 0x01 },
1251         };
1252
1253         dev_dbg(&d->udev->dev,
1254                         "%s: USB speed=%d frame_size=%04x packet_size=%02x\n",
1255                         __func__, d->udev->speed, frame_size, packet_size);
1256
1257         /* init endpoints */
1258         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1259                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1260                                 tab[i].mask);
1261                 if (ret < 0)
1262                         goto err;
1263         }
1264
1265         return 0;
1266
1267 err:
1268         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1269
1270         return ret;
1271 }
1272
1273 #if IS_ENABLED(CONFIG_RC_CORE)
1274 static int af9035_rc_query(struct dvb_usb_device *d)
1275 {
1276         int ret;
1277         u32 key;
1278         u8 buf[4];
1279         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1280
1281         ret = af9035_ctrl_msg(d, &req);
1282         if (ret == 1)
1283                 return 0;
1284         else if (ret < 0)
1285                 goto err;
1286
1287         if ((buf[2] + buf[3]) == 0xff) {
1288                 if ((buf[0] + buf[1]) == 0xff) {
1289                         /* NEC standard 16bit */
1290                         key = buf[0] << 8 | buf[2];
1291                 } else {
1292                         /* NEC extended 24bit */
1293                         key = buf[0] << 16 | buf[1] << 8 | buf[2];
1294                 }
1295         } else {
1296                 /* NEC full code 32bit */
1297                 key = buf[0] << 24 | buf[1] << 16 | buf[2] << 8 | buf[3];
1298         }
1299
1300         dev_dbg(&d->udev->dev, "%s: %*ph\n", __func__, 4, buf);
1301
1302         rc_keydown(d->rc_dev, key, 0);
1303
1304         return 0;
1305
1306 err:
1307         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1308
1309         return ret;
1310 }
1311
1312 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1313 {
1314         struct state *state = d_to_priv(d);
1315         int ret;
1316         u8 tmp;
1317
1318         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_MODE, &tmp);
1319         if (ret < 0)
1320                 goto err;
1321
1322         dev_dbg(&d->udev->dev, "%s: ir_mode=%02x\n", __func__, tmp);
1323
1324         /* don't activate rc if in HID mode or if not available */
1325         if (tmp == 5) {
1326                 ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_TYPE,
1327                                 &tmp);
1328                 if (ret < 0)
1329                         goto err;
1330
1331                 dev_dbg(&d->udev->dev, "%s: ir_type=%02x\n", __func__, tmp);
1332
1333                 switch (tmp) {
1334                 case 0: /* NEC */
1335                 default:
1336                         rc->allowed_protos = RC_BIT_NEC;
1337                         break;
1338                 case 1: /* RC6 */
1339                         rc->allowed_protos = RC_BIT_RC6_MCE;
1340                         break;
1341                 }
1342
1343                 rc->query = af9035_rc_query;
1344                 rc->interval = 500;
1345
1346                 /* load empty to enable rc */
1347                 if (!rc->map_name)
1348                         rc->map_name = RC_MAP_EMPTY;
1349         }
1350
1351         return 0;
1352
1353 err:
1354         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1355
1356         return ret;
1357 }
1358 #else
1359         #define af9035_get_rc_config NULL
1360 #endif
1361
1362 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1363                 struct usb_data_stream_properties *stream)
1364 {
1365         struct dvb_usb_device *d = fe_to_d(fe);
1366         dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, fe_to_adap(fe)->id);
1367
1368         if (d->udev->speed == USB_SPEED_FULL)
1369                 stream->u.bulk.buffersize = 5 * 188;
1370
1371         return 0;
1372 }
1373
1374 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1375 {
1376         struct state *state = adap_to_priv(adap);
1377
1378         return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1379 }
1380
1381 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1382                 int onoff)
1383 {
1384         struct state *state = adap_to_priv(adap);
1385
1386         return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1387 }
1388
1389 static int af9035_probe(struct usb_interface *intf,
1390                 const struct usb_device_id *id)
1391 {
1392         struct usb_device *udev = interface_to_usbdev(intf);
1393         char manufacturer[sizeof("Afatech")];
1394
1395         memset(manufacturer, 0, sizeof(manufacturer));
1396         usb_string(udev, udev->descriptor.iManufacturer,
1397                         manufacturer, sizeof(manufacturer));
1398         /*
1399          * There is two devices having same ID but different chipset. One uses
1400          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1401          * is iManufacturer string.
1402          *
1403          * idVendor           0x0ccd TerraTec Electronic GmbH
1404          * idProduct          0x0099
1405          * bcdDevice            2.00
1406          * iManufacturer           1 Afatech
1407          * iProduct                2 DVB-T 2
1408          *
1409          * idVendor           0x0ccd TerraTec Electronic GmbH
1410          * idProduct          0x0099
1411          * bcdDevice            2.00
1412          * iManufacturer           1 ITE Technologies, Inc.
1413          * iProduct                2 DVB-T TV Stick
1414          */
1415         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1416                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1417                 if (!strcmp("Afatech", manufacturer)) {
1418                         dev_dbg(&udev->dev, "%s: rejecting device\n", __func__);
1419                         return -ENODEV;
1420                 }
1421         }
1422
1423         return dvb_usbv2_probe(intf, id);
1424 }
1425
1426 /* interface 0 is used by DVB-T receiver and
1427    interface 1 is for remote controller (HID) */
1428 static const struct dvb_usb_device_properties af9035_props = {
1429         .driver_name = KBUILD_MODNAME,
1430         .owner = THIS_MODULE,
1431         .adapter_nr = adapter_nr,
1432         .size_of_priv = sizeof(struct state),
1433
1434         .generic_bulk_ctrl_endpoint = 0x02,
1435         .generic_bulk_ctrl_endpoint_response = 0x81,
1436
1437         .identify_state = af9035_identify_state,
1438         .download_firmware = af9035_download_firmware,
1439
1440         .i2c_algo = &af9035_i2c_algo,
1441         .read_config = af9035_read_config,
1442         .frontend_attach = af9035_frontend_attach,
1443         .tuner_attach = af9035_tuner_attach,
1444         .init = af9035_init,
1445         .get_rc_config = af9035_get_rc_config,
1446         .get_stream_config = af9035_get_stream_config,
1447
1448         .get_adapter_count = af9035_get_adapter_count,
1449         .adapter = {
1450                 {
1451                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1452                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1453
1454                         .pid_filter_count = 32,
1455                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
1456                         .pid_filter = af9035_pid_filter,
1457
1458                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
1459                 }, {
1460                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1461                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1462
1463                         .pid_filter_count = 32,
1464                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
1465                         .pid_filter = af9035_pid_filter,
1466
1467                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
1468                 },
1469         },
1470 };
1471
1472 static const struct usb_device_id af9035_id_table[] = {
1473         /* AF9035 devices */
1474         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
1475                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1476         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
1477                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1478         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
1479                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1480         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
1481                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1482         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
1483                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1484         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
1485                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
1486         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
1487                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1488         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
1489                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1490         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
1491                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1492         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
1493                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1494         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
1495                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
1496         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
1497                 &af9035_props, "Asus U3100Mini Plus", NULL) },
1498         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
1499                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
1500         /* IT9135 devices */
1501         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
1502                 &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
1503         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
1504                 &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
1505         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
1506                 &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
1507         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
1508                 &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
1509         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
1510                 &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
1511         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
1512                 &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
1513         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
1514                 &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
1515         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
1516                 &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
1517         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
1518                 &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
1519         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
1520                 &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
1521                                                         RC_MAP_IT913X_V1) },
1522         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
1523                 &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
1524                                                         RC_MAP_IT913X_V1) },
1525         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
1526         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
1527                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) },
1528         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
1529                 &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
1530         { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
1531                 &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
1532         { }
1533 };
1534 MODULE_DEVICE_TABLE(usb, af9035_id_table);
1535
1536 static struct usb_driver af9035_usb_driver = {
1537         .name = KBUILD_MODNAME,
1538         .id_table = af9035_id_table,
1539         .probe = af9035_probe,
1540         .disconnect = dvb_usbv2_disconnect,
1541         .suspend = dvb_usbv2_suspend,
1542         .resume = dvb_usbv2_resume,
1543         .reset_resume = dvb_usbv2_reset_resume,
1544         .no_dynamic_id = 1,
1545         .soft_unbind = 1,
1546 };
1547
1548 module_usb_driver(af9035_usb_driver);
1549
1550 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1551 MODULE_DESCRIPTION("Afatech AF9035 driver");
1552 MODULE_LICENSE("GPL");
1553 MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035);
1554 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1);
1555 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2);