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 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  25
  26 static u16 af9035_checksum(const u8 *buf, size_t len)
  27 {
  28         size_t i;
  29         u16 checksum = 0;
  30
  31         for (i = 1; i < len; i++) {
  32                 if (i % 2)
  33                         checksum += buf[i] << 8;
  34                 else
  35                         checksum += buf[i];
  36         }
  37         checksum = ~checksum;
  38
  39         return checksum;
  40 }
  41
  42 static int af9035_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
  43 {
  44 #define REQ_HDR_LEN 4 /* send header size */
  45 #define ACK_HDR_LEN 3 /* rece header size */
  46 #define CHECKSUM_LEN 2
  47 #define USB_TIMEOUT 2000
  48         struct state *state = d_to_priv(d);
  49         int ret, wlen, rlen;
  50         u16 checksum, tmp_checksum;
  51
  52         mutex_lock(&d->usb_mutex);
  53
  54         /* buffer overflow check */
  55         if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
  56                         req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
  57                 dev_err(&d->udev->dev, "%s: too much data wlen=%d rlen=%d\n",
  58                                 __func__, req->wlen, req->rlen);
  59                 ret = -EINVAL;
  60                 goto err;
  61         }
  62
  63         state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
  64         state->buf[1] = req->mbox;
  65         state->buf[2] = req->cmd;
  66         state->buf[3] = state->seq++;
  67         memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
  68
  69         wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
  70         rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
  71
  72         /* calc and add checksum */
  73         checksum = af9035_checksum(state->buf, state->buf[0] - 1);
  74         state->buf[state->buf[0] - 1] = (checksum >> 8);
  75         state->buf[state->buf[0] - 0] = (checksum & 0xff);
  76
  77         /* no ack for these packets */
  78         if (req->cmd == CMD_FW_DL)
  79                 rlen = 0;
  80
  81         ret = dvb_usbv2_generic_rw_locked(d,
  82                         state->buf, wlen, state->buf, rlen);
  83         if (ret)
  84                 goto err;
  85
  86         /* no ack for those packets */
  87         if (req->cmd == CMD_FW_DL)
  88                 goto exit;
  89
  90         /* verify checksum */
  91         checksum = af9035_checksum(state->buf, rlen - 2);
  92         tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
  93         if (tmp_checksum != checksum) {
  94                 dev_err(&d->udev->dev, "%s: command=%02x checksum mismatch " \
  95                                 "(%04x != %04x)\n", KBUILD_MODNAME, req->cmd,
  96                                 tmp_checksum, checksum);
  97                 ret = -EIO;
  98                 goto err;
  99         }
 100
 101         /* check status */
 102         if (state->buf[2]) {
 103                 dev_dbg(&d->udev->dev, "%s: command=%02x failed fw error=%d\n",
 104                                 __func__, req->cmd, state->buf[2]);
 105                 ret = -EIO;
 106                 goto err;
 107         }
 108
 109         /* read request, copy returned data to return buf */
 110         if (req->rlen)
 111                 memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 112 exit:
 113 err:
 114         mutex_unlock(&d->usb_mutex);
 115         if (ret)
 116                 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 117         return ret;
 118 }
 119
 120 /* write multiple registers */
 121 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 122 {
 123         u8 wbuf[6 + len];
 124         u8 mbox = (reg >> 16) & 0xff;
 125         struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL };
 126
 127         wbuf[0] = len;
 128         wbuf[1] = 2;
 129         wbuf[2] = 0;
 130         wbuf[3] = 0;
 131         wbuf[4] = (reg >> 8) & 0xff;
 132         wbuf[5] = (reg >> 0) & 0xff;
 133         memcpy(&wbuf[6], val, len);
 134
 135         return af9035_ctrl_msg(d, &req);
 136 }
 137
 138 /* read multiple registers */
 139 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 140 {
 141         u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 142         u8 mbox = (reg >> 16) & 0xff;
 143         struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 144
 145         return af9035_ctrl_msg(d, &req);
 146 }
 147
 148 /* write single register */
 149 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 150 {
 151         return af9035_wr_regs(d, reg, &val, 1);
 152 }
 153
 154 /* read single register */
 155 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 156 {
 157         return af9035_rd_regs(d, reg, val, 1);
 158 }
 159
 160 /* write single register with mask */
 161 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 162                 u8 mask)
 163 {
 164         int ret;
 165         u8 tmp;
 166
 167         /* no need for read if whole reg is written */
 168         if (mask != 0xff) {
 169                 ret = af9035_rd_regs(d, reg, &tmp, 1);
 170                 if (ret)
 171                         return ret;
 172
 173                 val &= mask;
 174                 tmp &= ~mask;
 175                 val |= tmp;
 176         }
 177
 178         return af9035_wr_regs(d, reg, &val, 1);
 179 }
 180
 181 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 182                 struct i2c_msg msg[], int num)
 183 {
 184         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 185         struct state *state = d_to_priv(d);
 186         int ret;
 187
 188         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 189                 return -EAGAIN;
 190
 191         /*
 192          * I2C sub header is 5 bytes long. Meaning of those bytes are:
 193          * 0: data len
 194          * 1: I2C addr << 1
 195          * 2: reg addr len
 196          *    byte 3 and 4 can be used as reg addr
 197          * 3: reg addr MSB
 198          *    used when reg addr len is set to 2
 199          * 4: reg addr LSB
 200          *    used when reg addr len is set to 1 or 2
 201          *
 202          * For the simplify we do not use register addr at all.
 203          * NOTE: As a firmware knows tuner type there is very small possibility
 204          * there could be some tuner I2C hacks done by firmware and this may
 205          * lead problems if firmware expects those bytes are used.
 206          */
 207         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 208                         (msg[1].flags & I2C_M_RD)) {
 209                 if (msg[0].len > 40 || msg[1].len > 40) {
 210                         /* TODO: correct limits > 40 */
 211                         ret = -EOPNOTSUPP;
 212                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 213                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 214                         /* demod access via firmware interface */
 215                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 216                                         msg[0].buf[2];
 217
 218                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 219                                 reg |= 0x100000;
 220
 221                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 222                                         msg[1].len);
 223                 } else {
 224                         /* I2C */
 225                         u8 buf[5 + msg[0].len];
 226                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 227                                         buf, msg[1].len, msg[1].buf };
 228                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 229                         buf[0] = msg[1].len;
 230                         buf[1] = msg[0].addr << 1;
 231                         buf[2] = 0x00; /* reg addr len */
 232                         buf[3] = 0x00; /* reg addr MSB */
 233                         buf[4] = 0x00; /* reg addr LSB */
 234                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 235                         ret = af9035_ctrl_msg(d, &req);
 236                 }
 237         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 238                 if (msg[0].len > 40) {
 239                         /* TODO: correct limits > 40 */
 240                         ret = -EOPNOTSUPP;
 241                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 242                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 243                         /* demod access via firmware interface */
 244                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 245                                         msg[0].buf[2];
 246
 247                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 248                                 reg |= 0x100000;
 249
 250                         ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
 251                                         msg[0].len - 3);
 252                 } else {
 253                         /* I2C */
 254                         u8 buf[5 + msg[0].len];
 255                         struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf,
 256                                         0, NULL };
 257                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 258                         buf[0] = msg[0].len;
 259                         buf[1] = msg[0].addr << 1;
 260                         buf[2] = 0x00; /* reg addr len */
 261                         buf[3] = 0x00; /* reg addr MSB */
 262                         buf[4] = 0x00; /* reg addr LSB */
 263                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 264                         ret = af9035_ctrl_msg(d, &req);
 265                 }
 266         } else {
 267                 /*
 268                  * We support only two kind of I2C transactions:
 269                  * 1) 1 x read + 1 x write
 270                  * 2) 1 x write
 271                  */
 272                 ret = -EOPNOTSUPP;
 273         }
 274
 275         mutex_unlock(&d->i2c_mutex);
 276
 277         if (ret < 0)
 278                 return ret;
 279         else
 280                 return num;
 281 }
 282
 283 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 284 {
 285         return I2C_FUNC_I2C;
 286 }
 287
 288 static struct i2c_algorithm af9035_i2c_algo = {
 289         .master_xfer = af9035_i2c_master_xfer,
 290         .functionality = af9035_i2c_functionality,
 291 };
 292
 293 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 294 {
 295         struct state *state = d_to_priv(d);
 296         int ret;
 297         u8 wbuf[1] = { 1 };
 298         u8 rbuf[4];
 299         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 300                         sizeof(rbuf), rbuf };
 301
 302         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 303         if (ret < 0)
 304                 goto err;
 305
 306         state->chip_version = rbuf[0];
 307         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 308
 309         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 310         if (ret < 0)
 311                 goto err;
 312
 313         dev_info(&d->udev->dev,
 314                         "%s: prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 315                         __func__, state->prechip_version, state->chip_version,
 316                         state->chip_type);
 317
 318         if (state->chip_type == 0x9135) {
 319                 if (state->chip_version == 0x02)
 320                         *name = AF9035_FIRMWARE_IT9135_V2;
 321                 else
 322                         *name = AF9035_FIRMWARE_IT9135_V1;
 323                 state->eeprom_addr = EEPROM_BASE_IT9135;
 324         } else {
 325                 *name = AF9035_FIRMWARE_AF9035;
 326                 state->eeprom_addr = EEPROM_BASE_AF9035;
 327         }
 328
 329         ret = af9035_ctrl_msg(d, &req);
 330         if (ret < 0)
 331                 goto err;
 332
 333         dev_dbg(&d->udev->dev, "%s: reply=%*ph\n", __func__, 4, rbuf);
 334         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 335                 ret = WARM;
 336         else
 337                 ret = COLD;
 338
 339         return ret;
 340
 341 err:
 342         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 343
 344         return ret;
 345 }
 346
 347 static int af9035_download_firmware_af9035(struct dvb_usb_device *d,
 348                 const struct firmware *fw)
 349 {
 350         int ret, i, j, len;
 351         u8 wbuf[1];
 352         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 353         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 354         u8 hdr_core;
 355         u16 hdr_addr, hdr_data_len, hdr_checksum;
 356         #define MAX_DATA 58
 357         #define HDR_SIZE 7
 358
 359         /*
 360          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 361          *
 362          * byte 0: MCS 51 core
 363          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 364          *  address spaces
 365          * byte 1-2: Big endian destination address
 366          * byte 3-4: Big endian number of data bytes following the header
 367          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 368          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 369          */
 370
 371         for (i = fw->size; i > HDR_SIZE;) {
 372                 hdr_core = fw->data[fw->size - i + 0];
 373                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 374                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 375                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 376                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 377                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 378                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 379
 380                 dev_dbg(&d->udev->dev, "%s: core=%d addr=%04x data_len=%d " \
 381                                 "checksum=%04x\n", __func__, hdr_core, hdr_addr,
 382                                 hdr_data_len, hdr_checksum);
 383
 384                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 385                                 (hdr_data_len > i)) {
 386                         dev_dbg(&d->udev->dev, "%s: bad firmware\n", __func__);
 387                         break;
 388                 }
 389
 390                 /* download begin packet */
 391                 req.cmd = CMD_FW_DL_BEGIN;
 392                 ret = af9035_ctrl_msg(d, &req);
 393                 if (ret < 0)
 394                         goto err;
 395
 396                 /* download firmware packet(s) */
 397                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 398                         len = j;
 399                         if (len > MAX_DATA)
 400                                 len = MAX_DATA;
 401                         req_fw_dl.wlen = len;
 402                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 403                                         HDR_SIZE + hdr_data_len - j];
 404                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 405                         if (ret < 0)
 406                                 goto err;
 407                 }
 408
 409                 /* download end packet */
 410                 req.cmd = CMD_FW_DL_END;
 411                 ret = af9035_ctrl_msg(d, &req);
 412                 if (ret < 0)
 413                         goto err;
 414
 415                 i -= hdr_data_len + HDR_SIZE;
 416
 417                 dev_dbg(&d->udev->dev, "%s: data uploaded=%zu\n",
 418                                 __func__, fw->size - i);
 419         }
 420
 421         /* print warn if firmware is bad, continue and see what happens */
 422         if (i)
 423                 dev_warn(&d->udev->dev, "%s: bad firmware\n", KBUILD_MODNAME);
 424
 425         return 0;
 426
 427 err:
 428         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 429
 430         return ret;
 431 }
 432
 433 static int af9035_download_firmware_it9135(struct dvb_usb_device *d,
 434                 const struct firmware *fw)
 435 {
 436         int ret, i, i_prev;
 437         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 438         #define HDR_SIZE 7
 439
 440         /*
 441          * There seems to be following firmware header. Meaning of bytes 0-3
 442          * is unknown.
 443          *
 444          * 0: 3
 445          * 1: 0, 1
 446          * 2: 0
 447          * 3: 1, 2, 3
 448          * 4: addr MSB
 449          * 5: addr LSB
 450          * 6: count of data bytes ?
 451          */
 452         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 453                 if (i == fw->size ||
 454                                 (fw->data[i + 0] == 0x03 &&
 455                                 (fw->data[i + 1] == 0x00 ||
 456                                 fw->data[i + 1] == 0x01) &&
 457                                 fw->data[i + 2] == 0x00)) {
 458                         req_fw_dl.wlen = i - i_prev;
 459                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 460                         i_prev = i;
 461                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 462                         if (ret < 0)
 463                                 goto err;
 464
 465                         dev_dbg(&d->udev->dev, "%s: data uploaded=%d\n",
 466                                         __func__, i);
 467                 }
 468         }
 469
 470         return 0;
 471
 472 err:
 473         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 474
 475         return ret;
 476 }
 477
 478 static int af9035_download_firmware(struct dvb_usb_device *d,
 479                 const struct firmware *fw)
 480 {
 481         struct state *state = d_to_priv(d);
 482         int ret;
 483         u8 wbuf[1];
 484         u8 rbuf[4];
 485         u8 tmp;
 486         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 487         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf } ;
 488         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 489
 490         /*
 491          * In case of dual tuner configuration we need to do some extra
 492          * initialization in order to download firmware to slave demod too,
 493          * which is done by master demod.
 494          * Master feeds also clock and controls power via GPIO.
 495          */
 496         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_DUAL_MODE, &tmp);
 497         if (ret < 0)
 498                 goto err;
 499
 500         if (tmp) {
 501                 /* configure gpioh1, reset & power slave demod */
 502                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 503                 if (ret < 0)
 504                         goto err;
 505
 506                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 507                 if (ret < 0)
 508                         goto err;
 509
 510                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 511                 if (ret < 0)
 512                         goto err;
 513
 514                 usleep_range(10000, 50000);
 515
 516                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 517                 if (ret < 0)
 518                         goto err;
 519
 520                 /* tell the slave I2C address */
 521                 ret = af9035_rd_reg(d,
 522                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 523                                 &tmp);
 524                 if (ret < 0)
 525                         goto err;
 526
 527                 if (state->chip_type == 0x9135) {
 528                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 529                         if (ret < 0)
 530                                 goto err;
 531                 } else {
 532                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 533                         if (ret < 0)
 534                                 goto err;
 535
 536                         /* enable clock out */
 537                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 538                         if (ret < 0)
 539                                 goto err;
 540                 }
 541         }
 542
 543         if (state->chip_type == 0x9135)
 544                 ret = af9035_download_firmware_it9135(d, fw);
 545         else
 546                 ret = af9035_download_firmware_af9035(d, fw);
 547         if (ret < 0)
 548                 goto err;
 549
 550         /* firmware loaded, request boot */
 551         req.cmd = CMD_FW_BOOT;
 552         ret = af9035_ctrl_msg(d, &req);
 553         if (ret < 0)
 554                 goto err;
 555
 556         /* ensure firmware starts */
 557         wbuf[0] = 1;
 558         ret = af9035_ctrl_msg(d, &req_fw_ver);
 559         if (ret < 0)
 560                 goto err;
 561
 562         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 563                 dev_err(&d->udev->dev, "%s: firmware did not run\n",
 564                                 KBUILD_MODNAME);
 565                 ret = -ENODEV;
 566                 goto err;
 567         }
 568
 569         dev_info(&d->udev->dev, "%s: firmware version=%d.%d.%d.%d",
 570                         KBUILD_MODNAME, rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 571
 572         return 0;
 573
 574 err:
 575         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 576
 577         return ret;
 578 }
 579
 580 static int af9035_read_config(struct dvb_usb_device *d)
 581 {
 582         struct state *state = d_to_priv(d);
 583         int ret, i;
 584         u8 tmp;
 585         u16 tmp16, addr;
 586
 587         /* demod I2C "address" */
 588         state->af9033_config[0].i2c_addr = 0x38;
 589         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 590         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 591
 592         /* eeprom memory mapped location */
 593         if (state->chip_type == 0x9135) {
 594                 if (state->chip_version == 0x02) {
 595                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 596                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 597                         tmp16 = 0x00461d;
 598                 } else {
 599                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 600                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 601                         tmp16 = 0x00461b;
 602                 }
 603
 604                 /* check if eeprom exists */
 605                 ret = af9035_rd_reg(d, tmp16, &tmp);
 606                 if (ret < 0)
 607                         goto err;
 608
 609                 if (tmp) {
 610                         addr = EEPROM_BASE_IT9135;
 611                 } else {
 612                         dev_dbg(&d->udev->dev, "%s: no eeprom\n", __func__);
 613                         goto skip_eeprom;
 614                 }
 615         } else {
 616                 addr = EEPROM_BASE_AF9035;
 617         }
 618
 619         /* check if there is dual tuners */
 620         ret = af9035_rd_reg(d, addr + EEPROM_DUAL_MODE, &tmp);
 621         if (ret < 0)
 622                 goto err;
 623
 624         state->dual_mode = tmp;
 625         dev_dbg(&d->udev->dev, "%s: dual mode=%d\n", __func__,
 626                         state->dual_mode);
 627
 628         if (state->dual_mode) {
 629                 /* read 2nd demodulator I2C address */
 630                 ret = af9035_rd_reg(d, addr + EEPROM_2ND_DEMOD_ADDR, &tmp);
 631                 if (ret < 0)
 632                         goto err;
 633
 634                 state->af9033_config[1].i2c_addr = tmp;
 635                 dev_dbg(&d->udev->dev, "%s: 2nd demod I2C addr=%02x\n",
 636                                 __func__, tmp);
 637         }
 638
 639         for (i = 0; i < state->dual_mode + 1; i++) {
 640                 /* tuner */
 641                 ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
 642                 if (ret < 0)
 643                         goto err;
 644
 645                 if (tmp == 0x00)
 646                         dev_dbg(&d->udev->dev,
 647                                         "%s: [%d]tuner not set, using default\n",
 648                                         __func__, i);
 649                 else
 650                         state->af9033_config[i].tuner = tmp;
 651
 652                 dev_dbg(&d->udev->dev, "%s: [%d]tuner=%02x\n",
 653                                 __func__, i, state->af9033_config[i].tuner);
 654
 655                 switch (state->af9033_config[i].tuner) {
 656                 case AF9033_TUNER_TUA9001:
 657                 case AF9033_TUNER_FC0011:
 658                 case AF9033_TUNER_MXL5007T:
 659                 case AF9033_TUNER_TDA18218:
 660                 case AF9033_TUNER_FC2580:
 661                 case AF9033_TUNER_FC0012:
 662                         state->af9033_config[i].spec_inv = 1;
 663                         break;
 664                 case AF9033_TUNER_IT9135_38:
 665                 case AF9033_TUNER_IT9135_51:
 666                 case AF9033_TUNER_IT9135_52:
 667                 case AF9033_TUNER_IT9135_60:
 668                 case AF9033_TUNER_IT9135_61:
 669                 case AF9033_TUNER_IT9135_62:
 670                         break;
 671                 default:
 672                         dev_warn(&d->udev->dev,
 673                                         "%s: tuner id=%02x not supported, please report!",
 674                                         KBUILD_MODNAME, tmp);
 675                 }
 676
 677                 /* disable dual mode if driver does not support it */
 678                 if (i == 1)
 679                         switch (state->af9033_config[i].tuner) {
 680                         case AF9033_TUNER_FC0012:
 681                         case AF9033_TUNER_IT9135_38:
 682                         case AF9033_TUNER_IT9135_51:
 683                         case AF9033_TUNER_IT9135_52:
 684                         case AF9033_TUNER_IT9135_60:
 685                         case AF9033_TUNER_IT9135_61:
 686                         case AF9033_TUNER_IT9135_62:
 687                                 break;
 688                         default:
 689                                 state->dual_mode = false;
 690                                 dev_info(&d->udev->dev,
 691                                                 "%s: driver does not support 2nd tuner and will disable it",
 692                                                 KBUILD_MODNAME);
 693                 }
 694
 695                 /* tuner IF frequency */
 696                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
 697                 if (ret < 0)
 698                         goto err;
 699
 700                 tmp16 = tmp;
 701
 702                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
 703                 if (ret < 0)
 704                         goto err;
 705
 706                 tmp16 |= tmp << 8;
 707
 708                 dev_dbg(&d->udev->dev, "%s: [%d]IF=%d\n", __func__, i, tmp16);
 709
 710                 addr += 0x10; /* shift for the 2nd tuner params */
 711         }
 712
 713 skip_eeprom:
 714         /* get demod clock */
 715         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 716         if (ret < 0)
 717                 goto err;
 718
 719         tmp = (tmp >> 0) & 0x0f;
 720
 721         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 722                 if (state->chip_type == 0x9135)
 723                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 724                 else
 725                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 726         }
 727
 728         return 0;
 729
 730 err:
 731         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 732
 733         return ret;
 734 }
 735
 736 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
 737                 int cmd, int arg)
 738 {
 739         int ret;
 740         u8 val;
 741
 742         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 743
 744         /*
 745          * CEN     always enabled by hardware wiring
 746          * RESETN  GPIOT3
 747          * RXEN    GPIOT2
 748          */
 749
 750         switch (cmd) {
 751         case TUA9001_CMD_RESETN:
 752                 if (arg)
 753                         val = 0x00;
 754                 else
 755                         val = 0x01;
 756
 757                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
 758                 if (ret < 0)
 759                         goto err;
 760                 break;
 761         case TUA9001_CMD_RXEN:
 762                 if (arg)
 763                         val = 0x01;
 764                 else
 765                         val = 0x00;
 766
 767                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
 768                 if (ret < 0)
 769                         goto err;
 770                 break;
 771         }
 772
 773         return 0;
 774
 775 err:
 776         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 777
 778         return ret;
 779 }
 780
 781
 782 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
 783                 int cmd, int arg)
 784 {
 785         int ret;
 786
 787         switch (cmd) {
 788         case FC0011_FE_CALLBACK_POWER:
 789                 /* Tuner enable */
 790                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
 791                 if (ret < 0)
 792                         goto err;
 793
 794                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
 795                 if (ret < 0)
 796                         goto err;
 797
 798                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
 799                 if (ret < 0)
 800                         goto err;
 801
 802                 /* LED */
 803                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
 804                 if (ret < 0)
 805                         goto err;
 806
 807                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
 808                 if (ret < 0)
 809                         goto err;
 810
 811                 usleep_range(10000, 50000);
 812                 break;
 813         case FC0011_FE_CALLBACK_RESET:
 814                 ret = af9035_wr_reg(d, 0xd8e9, 1);
 815                 if (ret < 0)
 816                         goto err;
 817
 818                 ret = af9035_wr_reg(d, 0xd8e8, 1);
 819                 if (ret < 0)
 820                         goto err;
 821
 822                 ret = af9035_wr_reg(d, 0xd8e7, 1);
 823                 if (ret < 0)
 824                         goto err;
 825
 826                 usleep_range(10000, 20000);
 827
 828                 ret = af9035_wr_reg(d, 0xd8e7, 0);
 829                 if (ret < 0)
 830                         goto err;
 831
 832                 usleep_range(10000, 20000);
 833                 break;
 834         default:
 835                 ret = -EINVAL;
 836                 goto err;
 837         }
 838
 839         return 0;
 840
 841 err:
 842         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 843
 844         return ret;
 845 }
 846
 847 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 848 {
 849         struct state *state = d_to_priv(d);
 850
 851         switch (state->af9033_config[0].tuner) {
 852         case AF9033_TUNER_FC0011:
 853                 return af9035_fc0011_tuner_callback(d, cmd, arg);
 854         case AF9033_TUNER_TUA9001:
 855                 return af9035_tua9001_tuner_callback(d, cmd, arg);
 856         default:
 857                 break;
 858         }
 859
 860         return 0;
 861 }
 862
 863 static int af9035_frontend_callback(void *adapter_priv, int component,
 864                                     int cmd, int arg)
 865 {
 866         struct i2c_adapter *adap = adapter_priv;
 867         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 868
 869         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 870                         __func__, component, cmd, arg);
 871
 872         switch (component) {
 873         case DVB_FRONTEND_COMPONENT_TUNER:
 874                 return af9035_tuner_callback(d, cmd, arg);
 875         default:
 876                 break;
 877         }
 878
 879         return 0;
 880 }
 881
 882 static int af9035_get_adapter_count(struct dvb_usb_device *d)
 883 {
 884         struct state *state = d_to_priv(d);
 885
 886         /* disable 2nd adapter as we don't have PID filters implemented */
 887         if (d->udev->speed == USB_SPEED_FULL)
 888                 return 1;
 889         else
 890                 return state->dual_mode + 1;
 891 }
 892
 893 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
 894 {
 895         struct state *state = adap_to_priv(adap);
 896         struct dvb_usb_device *d = adap_to_d(adap);
 897         int ret;
 898         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 899
 900         if (!state->af9033_config[adap->id].tuner) {
 901                 /* unsupported tuner */
 902                 ret = -ENODEV;
 903                 goto err;
 904         }
 905
 906         if (adap->id == 0) {
 907                 state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 908                 state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 909         }
 910
 911         /* attach demodulator */
 912         adap->fe[0] = dvb_attach(af9033_attach, &state->af9033_config[adap->id],
 913                         &d->i2c_adap);
 914         if (adap->fe[0] == NULL) {
 915                 ret = -ENODEV;
 916                 goto err;
 917         }
 918
 919         /* disable I2C-gate */
 920         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
 921         adap->fe[0]->callback = af9035_frontend_callback;
 922
 923         return 0;
 924
 925 err:
 926         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 927
 928         return ret;
 929 }
 930
 931 static struct tua9001_config af9035_tua9001_config = {
 932         .i2c_addr = 0x60,
 933 };
 934
 935 static const struct fc0011_config af9035_fc0011_config = {
 936         .i2c_address = 0x60,
 937 };
 938
 939 static struct mxl5007t_config af9035_mxl5007t_config[] = {
 940         {
 941                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
 942                 .if_freq_hz = MxL_IF_4_57_MHZ,
 943                 .invert_if = 0,
 944                 .loop_thru_enable = 0,
 945                 .clk_out_enable = 0,
 946                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
 947         }, {
 948                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
 949                 .if_freq_hz = MxL_IF_4_57_MHZ,
 950                 .invert_if = 0,
 951                 .loop_thru_enable = 1,
 952                 .clk_out_enable = 1,
 953                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
 954         }
 955 };
 956
 957 static struct tda18218_config af9035_tda18218_config = {
 958         .i2c_address = 0x60,
 959         .i2c_wr_max = 21,
 960 };
 961
 962 static const struct fc2580_config af9035_fc2580_config = {
 963         .i2c_addr = 0x56,
 964         .clock = 16384000,
 965 };
 966
 967 static const struct fc0012_config af9035_fc0012_config[] = {
 968         {
 969                 .i2c_address = 0x63,
 970                 .xtal_freq = FC_XTAL_36_MHZ,
 971                 .dual_master = true,
 972                 .loop_through = true,
 973                 .clock_out = true,
 974         }, {
 975                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
 976                 .xtal_freq = FC_XTAL_36_MHZ,
 977                 .dual_master = true,
 978         }
 979 };
 980
 981 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
 982 {
 983         struct state *state = adap_to_priv(adap);
 984         struct dvb_usb_device *d = adap_to_d(adap);
 985         int ret;
 986         struct dvb_frontend *fe;
 987         struct i2c_msg msg[1];
 988         u8 tuner_addr;
 989         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 990
 991         /*
 992          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
 993          * to carry info about used I2C bus for dual tuner configuration.
 994          */
 995
 996         switch (state->af9033_config[adap->id].tuner) {
 997         case AF9033_TUNER_TUA9001:
 998                 /* AF9035 gpiot3 = TUA9001 RESETN
 999                    AF9035 gpiot2 = TUA9001 RXEN */
1000
1001                 /* configure gpiot2 and gpiot2 as output */
1002                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1003                 if (ret < 0)
1004                         goto err;
1005
1006                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1007                 if (ret < 0)
1008                         goto err;
1009
1010                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1011                 if (ret < 0)
1012                         goto err;
1013
1014                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1015                 if (ret < 0)
1016                         goto err;
1017
1018                 /* attach tuner */
1019                 fe = dvb_attach(tua9001_attach, adap->fe[0],
1020                                 &d->i2c_adap, &af9035_tua9001_config);
1021                 break;
1022         case AF9033_TUNER_FC0011:
1023                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1024                                 &d->i2c_adap, &af9035_fc0011_config);
1025                 break;
1026         case AF9033_TUNER_MXL5007T:
1027                 if (adap->id == 0) {
1028                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1029                         if (ret < 0)
1030                                 goto err;
1031
1032                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1033                         if (ret < 0)
1034                                 goto err;
1035
1036                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1037                         if (ret < 0)
1038                                 goto err;
1039
1040                         msleep(30);
1041
1042                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1043                         if (ret < 0)
1044                                 goto err;
1045
1046                         msleep(300);
1047
1048                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1049                         if (ret < 0)
1050                                 goto err;
1051
1052                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1053                         if (ret < 0)
1054                                 goto err;
1055
1056                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1057                         if (ret < 0)
1058                                 goto err;
1059
1060                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1061                         if (ret < 0)
1062                                 goto err;
1063
1064                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1065                         if (ret < 0)
1066                                 goto err;
1067
1068                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1069                         if (ret < 0)
1070                                 goto err;
1071
1072                         tuner_addr = 0x60;
1073                 } else {
1074                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1075                 }
1076
1077                 /* attach tuner */
1078                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1079                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1080                 break;
1081         case AF9033_TUNER_TDA18218:
1082                 /* attach tuner */
1083                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1084                                 &d->i2c_adap, &af9035_tda18218_config);
1085                 break;
1086         case AF9033_TUNER_FC2580:
1087                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1088                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1089                 if (ret < 0)
1090                         goto err;
1091
1092                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1093                 if (ret < 0)
1094                         goto err;
1095
1096                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1097                 if (ret < 0)
1098                         goto err;
1099
1100                 usleep_range(10000, 50000);
1101                 /* attach tuner */
1102                 fe = dvb_attach(fc2580_attach, adap->fe[0],
1103                                 &d->i2c_adap, &af9035_fc2580_config);
1104                 break;
1105         case AF9033_TUNER_FC0012:
1106                 /*
1107                  * AF9035 gpiot2 = FC0012 enable
1108                  * XXX: there seems to be something on gpioh8 too, but on my
1109                  * my test I didn't find any difference.
1110                  */
1111
1112                 if (adap->id == 0) {
1113                         /* configure gpiot2 as output and high */
1114                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1115                         if (ret < 0)
1116                                 goto err;
1117
1118                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1119                         if (ret < 0)
1120                                 goto err;
1121
1122                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1123                         if (ret < 0)
1124                                 goto err;
1125                 } else {
1126                         /*
1127                          * FIXME: That belongs for the FC0012 driver.
1128                          * Write 02 to FC0012 master tuner register 0d directly
1129                          * in order to make slave tuner working.
1130                          */
1131                         msg[0].addr = 0x63;
1132                         msg[0].flags = 0;
1133                         msg[0].len = 2;
1134                         msg[0].buf = "\x0d\x02";
1135                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1136                         if (ret < 0)
1137                                 goto err;
1138                 }
1139
1140                 usleep_range(10000, 50000);
1141
1142                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1143                                 &af9035_fc0012_config[adap->id]);
1144                 break;
1145         case AF9033_TUNER_IT9135_38:
1146         case AF9033_TUNER_IT9135_51:
1147         case AF9033_TUNER_IT9135_52:
1148         case AF9033_TUNER_IT9135_60:
1149         case AF9033_TUNER_IT9135_61:
1150         case AF9033_TUNER_IT9135_62:
1151                 /* attach tuner */
1152                 fe = dvb_attach(it913x_attach, adap->fe[0], &d->i2c_adap,
1153                                 state->af9033_config[adap->id].i2c_addr,
1154                                 state->af9033_config[0].tuner);
1155                 break;
1156         default:
1157                 fe = NULL;
1158         }
1159
1160         if (fe == NULL) {
1161                 ret = -ENODEV;
1162                 goto err;
1163         }
1164
1165         return 0;
1166
1167 err:
1168         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1169
1170         return ret;
1171 }
1172
1173 static int af9035_init(struct dvb_usb_device *d)
1174 {
1175         struct state *state = d_to_priv(d);
1176         int ret, i;
1177         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1178         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1179         struct reg_val_mask tab[] = {
1180                 { 0x80f99d, 0x01, 0x01 },
1181                 { 0x80f9a4, 0x01, 0x01 },
1182                 { 0x00dd11, 0x00, 0x20 },
1183                 { 0x00dd11, 0x00, 0x40 },
1184                 { 0x00dd13, 0x00, 0x20 },
1185                 { 0x00dd13, 0x00, 0x40 },
1186                 { 0x00dd11, 0x20, 0x20 },
1187                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1188                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1189                 { 0x00dd0c, packet_size, 0xff},
1190                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1191                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1192                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1193                 { 0x00dd0d, packet_size, 0xff },
1194                 { 0x80f9a3, state->dual_mode, 0x01 },
1195                 { 0x80f9cd, state->dual_mode, 0x01 },
1196                 { 0x80f99d, 0x00, 0x01 },
1197                 { 0x80f9a4, 0x00, 0x01 },
1198         };
1199
1200         dev_dbg(&d->udev->dev, "%s: USB speed=%d frame_size=%04x " \
1201                         "packet_size=%02x\n", __func__,
1202                         d->udev->speed, frame_size, packet_size);
1203
1204         /* init endpoints */
1205         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1206                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1207                                 tab[i].mask);
1208                 if (ret < 0)
1209                         goto err;
1210         }
1211
1212         return 0;
1213
1214 err:
1215         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1216
1217         return ret;
1218 }
1219
1220 #if IS_ENABLED(CONFIG_RC_CORE)
1221 static int af9035_rc_query(struct dvb_usb_device *d)
1222 {
1223         unsigned int key;
1224         unsigned char b[4];
1225         int ret;
1226         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, b };
1227
1228         ret = af9035_ctrl_msg(d, &req);
1229         if (ret < 0)
1230                 goto err;
1231
1232         if ((b[2] + b[3]) == 0xff) {
1233                 if ((b[0] + b[1]) == 0xff) {
1234                         /* NEC */
1235                         key = b[0] << 8 | b[2];
1236                 } else {
1237                         /* ext. NEC */
1238                         key = b[0] << 16 | b[1] << 8 | b[2];
1239                 }
1240         } else {
1241                 key = b[0] << 24 | b[1] << 16 | b[2] << 8 | b[3];
1242         }
1243
1244         rc_keydown(d->rc_dev, key, 0);
1245
1246 err:
1247         /* ignore errors */
1248         return 0;
1249 }
1250
1251 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1252 {
1253         struct state *state = d_to_priv(d);
1254         int ret;
1255         u8 tmp;
1256
1257         /* TODO: IT9135 remote control support */
1258         if (state->chip_type == 0x9135)
1259                 return 0;
1260
1261         ret = af9035_rd_reg(d, EEPROM_BASE_AF9035 + EEPROM_IR_MODE, &tmp);
1262         if (ret < 0)
1263                 goto err;
1264
1265         dev_dbg(&d->udev->dev, "%s: ir_mode=%02x\n", __func__, tmp);
1266
1267         /* don't activate rc if in HID mode or if not available */
1268         if (tmp == 5) {
1269                 ret = af9035_rd_reg(d, EEPROM_BASE_AF9035 + EEPROM_IR_TYPE,
1270                                 &tmp);
1271                 if (ret < 0)
1272                         goto err;
1273
1274                 dev_dbg(&d->udev->dev, "%s: ir_type=%02x\n", __func__, tmp);
1275
1276                 switch (tmp) {
1277                 case 0: /* NEC */
1278                 default:
1279                         rc->allowed_protos = RC_BIT_NEC;
1280                         break;
1281                 case 1: /* RC6 */
1282                         rc->allowed_protos = RC_BIT_RC6_MCE;
1283                         break;
1284                 }
1285
1286                 rc->query = af9035_rc_query;
1287                 rc->interval = 500;
1288
1289                 /* load empty to enable rc */
1290                 if (!rc->map_name)
1291                         rc->map_name = RC_MAP_EMPTY;
1292         }
1293
1294         return 0;
1295
1296 err:
1297         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1298
1299         return ret;
1300 }
1301 #else
1302         #define af9035_get_rc_config NULL
1303 #endif
1304
1305 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1306                 struct usb_data_stream_properties *stream)
1307 {
1308         struct dvb_usb_device *d = fe_to_d(fe);
1309         dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, fe_to_adap(fe)->id);
1310
1311         if (d->udev->speed == USB_SPEED_FULL)
1312                 stream->u.bulk.buffersize = 5 * 188;
1313
1314         return 0;
1315 }
1316
1317 /*
1318  * FIXME: PID filter is property of demodulator and should be moved to the
1319  * correct driver. Also we support only adapter #0 PID filter and will
1320  * disable adapter #1 if USB1.1 is used.
1321  */
1322 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1323 {
1324         struct dvb_usb_device *d = adap_to_d(adap);
1325         int ret;
1326
1327         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1328
1329         ret = af9035_wr_reg_mask(d, 0x80f993, onoff, 0x01);
1330         if (ret < 0)
1331                 goto err;
1332
1333         return 0;
1334
1335 err:
1336         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1337
1338         return ret;
1339 }
1340
1341 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1342                 int onoff)
1343 {
1344         struct dvb_usb_device *d = adap_to_d(adap);
1345         int ret;
1346         u8 wbuf[2] = {(pid >> 0) & 0xff, (pid >> 8) & 0xff};
1347
1348         dev_dbg(&d->udev->dev, "%s: index=%d pid=%04x onoff=%d\n",
1349                         __func__, index, pid, onoff);
1350
1351         ret = af9035_wr_regs(d, 0x80f996, wbuf, 2);
1352         if (ret < 0)
1353                 goto err;
1354
1355         ret = af9035_wr_reg(d, 0x80f994, onoff);
1356         if (ret < 0)
1357                 goto err;
1358
1359         ret = af9035_wr_reg(d, 0x80f995, index);
1360         if (ret < 0)
1361                 goto err;
1362
1363         return 0;
1364
1365 err:
1366         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1367
1368         return ret;
1369 }
1370
1371 static int af9035_probe(struct usb_interface *intf,
1372                 const struct usb_device_id *id)
1373 {
1374         struct usb_device *udev = interface_to_usbdev(intf);
1375         char manufacturer[sizeof("Afatech")];
1376
1377         memset(manufacturer, 0, sizeof(manufacturer));
1378         usb_string(udev, udev->descriptor.iManufacturer,
1379                         manufacturer, sizeof(manufacturer));
1380         /*
1381          * There is two devices having same ID but different chipset. One uses
1382          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1383          * is iManufacturer string.
1384          *
1385          * idVendor           0x0ccd TerraTec Electronic GmbH
1386          * idProduct          0x0099
1387          * bcdDevice            2.00
1388          * iManufacturer           1 Afatech
1389          * iProduct                2 DVB-T 2
1390          *
1391          * idVendor           0x0ccd TerraTec Electronic GmbH
1392          * idProduct          0x0099
1393          * bcdDevice            2.00
1394          * iManufacturer           1 ITE Technologies, Inc.
1395          * iProduct                2 DVB-T TV Stick
1396          */
1397         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1398                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1399                 if (!strcmp("Afatech", manufacturer)) {
1400                         dev_dbg(&udev->dev, "%s: rejecting device\n", __func__);
1401                         return -ENODEV;
1402                 }
1403         }
1404
1405         return dvb_usbv2_probe(intf, id);
1406 }
1407
1408 /* interface 0 is used by DVB-T receiver and
1409    interface 1 is for remote controller (HID) */
1410 static const struct dvb_usb_device_properties af9035_props = {
1411         .driver_name = KBUILD_MODNAME,
1412         .owner = THIS_MODULE,
1413         .adapter_nr = adapter_nr,
1414         .size_of_priv = sizeof(struct state),
1415
1416         .generic_bulk_ctrl_endpoint = 0x02,
1417         .generic_bulk_ctrl_endpoint_response = 0x81,
1418
1419         .identify_state = af9035_identify_state,
1420         .download_firmware = af9035_download_firmware,
1421
1422         .i2c_algo = &af9035_i2c_algo,
1423         .read_config = af9035_read_config,
1424         .frontend_attach = af9035_frontend_attach,
1425         .tuner_attach = af9035_tuner_attach,
1426         .init = af9035_init,
1427         .get_rc_config = af9035_get_rc_config,
1428         .get_stream_config = af9035_get_stream_config,
1429
1430         .get_adapter_count = af9035_get_adapter_count,
1431         .adapter = {
1432                 {
1433                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1434                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1435
1436                         .pid_filter_count = 32,
1437                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
1438                         .pid_filter = af9035_pid_filter,
1439
1440                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
1441                 }, {
1442                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
1443                 },
1444         },
1445 };
1446
1447 static const struct usb_device_id af9035_id_table[] = {
1448         /* AF9035 devices */
1449         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
1450                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1451         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
1452                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1453         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
1454                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1455         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
1456                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1457         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
1458                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1459         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
1460                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
1461         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
1462                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1463         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
1464                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1465         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
1466                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1467         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
1468                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1469         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
1470                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
1471         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
1472                 &af9035_props, "Asus U3100Mini Plus", NULL) },
1473         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
1474                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
1475         /* IT9135 devices */
1476 #if 0
1477         { DVB_USB_DEVICE(0x048d, 0x9135,
1478                 &af9035_props, "IT9135 reference design", NULL) },
1479         { DVB_USB_DEVICE(0x048d, 0x9006,
1480                 &af9035_props, "IT9135 reference design", NULL) },
1481 #endif
1482         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
1483         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
1484                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) },
1485         { }
1486 };
1487 MODULE_DEVICE_TABLE(usb, af9035_id_table);
1488
1489 static struct usb_driver af9035_usb_driver = {
1490         .name = KBUILD_MODNAME,
1491         .id_table = af9035_id_table,
1492         .probe = af9035_probe,
1493         .disconnect = dvb_usbv2_disconnect,
1494         .suspend = dvb_usbv2_suspend,
1495         .resume = dvb_usbv2_resume,
1496         .reset_resume = dvb_usbv2_reset_resume,
1497         .no_dynamic_id = 1,
1498         .soft_unbind = 1,
1499 };
1500
1501 module_usb_driver(af9035_usb_driver);
1502
1503 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1504 MODULE_DESCRIPTION("Afatech AF9035 driver");
1505 MODULE_LICENSE("GPL");
1506 MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035);
1507 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1);
1508 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2);