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 exit;
  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 exit;
  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 exit;
  99         }
 100
 101         /* check status */
 102         if (state->buf[2]) {
 103                 /* fw returns status 1 when IR code was not received */
 104                 if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
 105                         ret = 1;
 106                         goto exit;
 107                 }
 108
 109                 dev_dbg(&d->udev->dev, "%s: command=%02x failed fw error=%d\n",
 110                                 __func__, req->cmd, state->buf[2]);
 111                 ret = -EIO;
 112                 goto exit;
 113         }
 114
 115         /* read request, copy returned data to return buf */
 116         if (req->rlen)
 117                 memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 118 exit:
 119         mutex_unlock(&d->usb_mutex);
 120         if (ret < 0)
 121                 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 122         return ret;
 123 }
 124
 125 /* write multiple registers */
 126 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 127 {
 128         u8 wbuf[6 + len];
 129         u8 mbox = (reg >> 16) & 0xff;
 130         struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL };
 131
 132         wbuf[0] = len;
 133         wbuf[1] = 2;
 134         wbuf[2] = 0;
 135         wbuf[3] = 0;
 136         wbuf[4] = (reg >> 8) & 0xff;
 137         wbuf[5] = (reg >> 0) & 0xff;
 138         memcpy(&wbuf[6], val, len);
 139
 140         return af9035_ctrl_msg(d, &req);
 141 }
 142
 143 /* read multiple registers */
 144 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 145 {
 146         u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 147         u8 mbox = (reg >> 16) & 0xff;
 148         struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 149
 150         return af9035_ctrl_msg(d, &req);
 151 }
 152
 153 /* write single register */
 154 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 155 {
 156         return af9035_wr_regs(d, reg, &val, 1);
 157 }
 158
 159 /* read single register */
 160 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 161 {
 162         return af9035_rd_regs(d, reg, val, 1);
 163 }
 164
 165 /* write single register with mask */
 166 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 167                 u8 mask)
 168 {
 169         int ret;
 170         u8 tmp;
 171
 172         /* no need for read if whole reg is written */
 173         if (mask != 0xff) {
 174                 ret = af9035_rd_regs(d, reg, &tmp, 1);
 175                 if (ret)
 176                         return ret;
 177
 178                 val &= mask;
 179                 tmp &= ~mask;
 180                 val |= tmp;
 181         }
 182
 183         return af9035_wr_regs(d, reg, &val, 1);
 184 }
 185
 186 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 187                 struct i2c_msg msg[], int num)
 188 {
 189         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 190         struct state *state = d_to_priv(d);
 191         int ret;
 192
 193         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 194                 return -EAGAIN;
 195
 196         /*
 197          * I2C sub header is 5 bytes long. Meaning of those bytes are:
 198          * 0: data len
 199          * 1: I2C addr << 1
 200          * 2: reg addr len
 201          *    byte 3 and 4 can be used as reg addr
 202          * 3: reg addr MSB
 203          *    used when reg addr len is set to 2
 204          * 4: reg addr LSB
 205          *    used when reg addr len is set to 1 or 2
 206          *
 207          * For the simplify we do not use register addr at all.
 208          * NOTE: As a firmware knows tuner type there is very small possibility
 209          * there could be some tuner I2C hacks done by firmware and this may
 210          * lead problems if firmware expects those bytes are used.
 211          */
 212         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 213                         (msg[1].flags & I2C_M_RD)) {
 214                 if (msg[0].len > 40 || msg[1].len > 40) {
 215                         /* TODO: correct limits > 40 */
 216                         ret = -EOPNOTSUPP;
 217                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 218                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 219                         /* demod access via firmware interface */
 220                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 221                                         msg[0].buf[2];
 222
 223                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 224                                 reg |= 0x100000;
 225
 226                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 227                                         msg[1].len);
 228                 } else {
 229                         /* I2C */
 230                         u8 buf[5 + msg[0].len];
 231                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 232                                         buf, msg[1].len, msg[1].buf };
 233                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 234                         buf[0] = msg[1].len;
 235                         buf[1] = msg[0].addr << 1;
 236                         buf[2] = 0x00; /* reg addr len */
 237                         buf[3] = 0x00; /* reg addr MSB */
 238                         buf[4] = 0x00; /* reg addr LSB */
 239                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 240                         ret = af9035_ctrl_msg(d, &req);
 241                 }
 242         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 243                 if (msg[0].len > 40) {
 244                         /* TODO: correct limits > 40 */
 245                         ret = -EOPNOTSUPP;
 246                 } else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
 247                            (msg[0].addr == state->af9033_config[1].i2c_addr)) {
 248                         /* demod access via firmware interface */
 249                         u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 250                                         msg[0].buf[2];
 251
 252                         if (msg[0].addr == state->af9033_config[1].i2c_addr)
 253                                 reg |= 0x100000;
 254
 255                         ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
 256                                         msg[0].len - 3);
 257                 } else {
 258                         /* I2C */
 259                         u8 buf[5 + msg[0].len];
 260                         struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf,
 261                                         0, NULL };
 262                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 263                         buf[0] = msg[0].len;
 264                         buf[1] = msg[0].addr << 1;
 265                         buf[2] = 0x00; /* reg addr len */
 266                         buf[3] = 0x00; /* reg addr MSB */
 267                         buf[4] = 0x00; /* reg addr LSB */
 268                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 269                         ret = af9035_ctrl_msg(d, &req);
 270                 }
 271         } else {
 272                 /*
 273                  * We support only two kind of I2C transactions:
 274                  * 1) 1 x read + 1 x write
 275                  * 2) 1 x write
 276                  */
 277                 ret = -EOPNOTSUPP;
 278         }
 279
 280         mutex_unlock(&d->i2c_mutex);
 281
 282         if (ret < 0)
 283                 return ret;
 284         else
 285                 return num;
 286 }
 287
 288 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 289 {
 290         return I2C_FUNC_I2C;
 291 }
 292
 293 static struct i2c_algorithm af9035_i2c_algo = {
 294         .master_xfer = af9035_i2c_master_xfer,
 295         .functionality = af9035_i2c_functionality,
 296 };
 297
 298 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 299 {
 300         struct state *state = d_to_priv(d);
 301         int ret;
 302         u8 wbuf[1] = { 1 };
 303         u8 rbuf[4];
 304         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 305                         sizeof(rbuf), rbuf };
 306
 307         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 308         if (ret < 0)
 309                 goto err;
 310
 311         state->chip_version = rbuf[0];
 312         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 313
 314         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 315         if (ret < 0)
 316                 goto err;
 317
 318         dev_info(&d->udev->dev,
 319                         "%s: prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 320                         __func__, state->prechip_version, state->chip_version,
 321                         state->chip_type);
 322
 323         if (state->chip_type == 0x9135) {
 324                 if (state->chip_version == 0x02)
 325                         *name = AF9035_FIRMWARE_IT9135_V2;
 326                 else
 327                         *name = AF9035_FIRMWARE_IT9135_V1;
 328                 state->eeprom_addr = EEPROM_BASE_IT9135;
 329         } else {
 330                 *name = AF9035_FIRMWARE_AF9035;
 331                 state->eeprom_addr = EEPROM_BASE_AF9035;
 332         }
 333
 334         ret = af9035_ctrl_msg(d, &req);
 335         if (ret < 0)
 336                 goto err;
 337
 338         dev_dbg(&d->udev->dev, "%s: reply=%*ph\n", __func__, 4, rbuf);
 339         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 340                 ret = WARM;
 341         else
 342                 ret = COLD;
 343
 344         return ret;
 345
 346 err:
 347         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 348
 349         return ret;
 350 }
 351
 352 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 353                 const struct firmware *fw)
 354 {
 355         int ret, i, j, len;
 356         u8 wbuf[1];
 357         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 358         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 359         u8 hdr_core;
 360         u16 hdr_addr, hdr_data_len, hdr_checksum;
 361         #define MAX_DATA 58
 362         #define HDR_SIZE 7
 363
 364         /*
 365          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 366          *
 367          * byte 0: MCS 51 core
 368          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 369          *  address spaces
 370          * byte 1-2: Big endian destination address
 371          * byte 3-4: Big endian number of data bytes following the header
 372          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 373          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 374          */
 375
 376         for (i = fw->size; i > HDR_SIZE;) {
 377                 hdr_core = fw->data[fw->size - i + 0];
 378                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 379                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 380                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 381                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 382                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 383                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 384
 385                 dev_dbg(&d->udev->dev, "%s: core=%d addr=%04x data_len=%d " \
 386                                 "checksum=%04x\n", __func__, hdr_core, hdr_addr,
 387                                 hdr_data_len, hdr_checksum);
 388
 389                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 390                                 (hdr_data_len > i)) {
 391                         dev_dbg(&d->udev->dev, "%s: bad firmware\n", __func__);
 392                         break;
 393                 }
 394
 395                 /* download begin packet */
 396                 req.cmd = CMD_FW_DL_BEGIN;
 397                 ret = af9035_ctrl_msg(d, &req);
 398                 if (ret < 0)
 399                         goto err;
 400
 401                 /* download firmware packet(s) */
 402                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 403                         len = j;
 404                         if (len > MAX_DATA)
 405                                 len = MAX_DATA;
 406                         req_fw_dl.wlen = len;
 407                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 408                                         HDR_SIZE + hdr_data_len - j];
 409                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 410                         if (ret < 0)
 411                                 goto err;
 412                 }
 413
 414                 /* download end packet */
 415                 req.cmd = CMD_FW_DL_END;
 416                 ret = af9035_ctrl_msg(d, &req);
 417                 if (ret < 0)
 418                         goto err;
 419
 420                 i -= hdr_data_len + HDR_SIZE;
 421
 422                 dev_dbg(&d->udev->dev, "%s: data uploaded=%zu\n",
 423                                 __func__, fw->size - i);
 424         }
 425
 426         /* print warn if firmware is bad, continue and see what happens */
 427         if (i)
 428                 dev_warn(&d->udev->dev, "%s: bad firmware\n", KBUILD_MODNAME);
 429
 430         return 0;
 431
 432 err:
 433         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 434
 435         return ret;
 436 }
 437
 438 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 439                 const struct firmware *fw)
 440 {
 441         int ret, i, i_prev;
 442         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 443         #define HDR_SIZE 7
 444
 445         /*
 446          * There seems to be following firmware header. Meaning of bytes 0-3
 447          * is unknown.
 448          *
 449          * 0: 3
 450          * 1: 0, 1
 451          * 2: 0
 452          * 3: 1, 2, 3
 453          * 4: addr MSB
 454          * 5: addr LSB
 455          * 6: count of data bytes ?
 456          */
 457         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 458                 if (i == fw->size ||
 459                                 (fw->data[i + 0] == 0x03 &&
 460                                 (fw->data[i + 1] == 0x00 ||
 461                                 fw->data[i + 1] == 0x01) &&
 462                                 fw->data[i + 2] == 0x00)) {
 463                         req_fw_dl.wlen = i - i_prev;
 464                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 465                         i_prev = i;
 466                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 467                         if (ret < 0)
 468                                 goto err;
 469
 470                         dev_dbg(&d->udev->dev, "%s: data uploaded=%d\n",
 471                                         __func__, i);
 472                 }
 473         }
 474
 475         return 0;
 476
 477 err:
 478         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 479
 480         return ret;
 481 }
 482
 483 static int af9035_download_firmware(struct dvb_usb_device *d,
 484                 const struct firmware *fw)
 485 {
 486         struct state *state = d_to_priv(d);
 487         int ret;
 488         u8 wbuf[1];
 489         u8 rbuf[4];
 490         u8 tmp;
 491         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 492         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf } ;
 493         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 494
 495         /*
 496          * In case of dual tuner configuration we need to do some extra
 497          * initialization in order to download firmware to slave demod too,
 498          * which is done by master demod.
 499          * Master feeds also clock and controls power via GPIO.
 500          */
 501         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_DUAL_MODE, &tmp);
 502         if (ret < 0)
 503                 goto err;
 504
 505         if (tmp) {
 506                 /* configure gpioh1, reset & power slave demod */
 507                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 508                 if (ret < 0)
 509                         goto err;
 510
 511                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 512                 if (ret < 0)
 513                         goto err;
 514
 515                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 516                 if (ret < 0)
 517                         goto err;
 518
 519                 usleep_range(10000, 50000);
 520
 521                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 522                 if (ret < 0)
 523                         goto err;
 524
 525                 /* tell the slave I2C address */
 526                 ret = af9035_rd_reg(d,
 527                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 528                                 &tmp);
 529                 if (ret < 0)
 530                         goto err;
 531
 532                 if (state->chip_type == 0x9135) {
 533                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 534                         if (ret < 0)
 535                                 goto err;
 536                 } else {
 537                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 538                         if (ret < 0)
 539                                 goto err;
 540
 541                         /* enable clock out */
 542                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 543                         if (ret < 0)
 544                                 goto err;
 545                 }
 546         }
 547
 548         if (fw->data[0] == 0x01)
 549                 ret = af9035_download_firmware_old(d, fw);
 550         else
 551                 ret = af9035_download_firmware_new(d, fw);
 552         if (ret < 0)
 553                 goto err;
 554
 555         /* firmware loaded, request boot */
 556         req.cmd = CMD_FW_BOOT;
 557         ret = af9035_ctrl_msg(d, &req);
 558         if (ret < 0)
 559                 goto err;
 560
 561         /* ensure firmware starts */
 562         wbuf[0] = 1;
 563         ret = af9035_ctrl_msg(d, &req_fw_ver);
 564         if (ret < 0)
 565                 goto err;
 566
 567         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 568                 dev_err(&d->udev->dev, "%s: firmware did not run\n",
 569                                 KBUILD_MODNAME);
 570                 ret = -ENODEV;
 571                 goto err;
 572         }
 573
 574         dev_info(&d->udev->dev, "%s: firmware version=%d.%d.%d.%d",
 575                         KBUILD_MODNAME, rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 576
 577         return 0;
 578
 579 err:
 580         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 581
 582         return ret;
 583 }
 584
 585 static int af9035_read_config(struct dvb_usb_device *d)
 586 {
 587         struct state *state = d_to_priv(d);
 588         int ret, i;
 589         u8 tmp;
 590         u16 tmp16, addr;
 591
 592         /* demod I2C "address" */
 593         state->af9033_config[0].i2c_addr = 0x38;
 594         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 595         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 596         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 597         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 598
 599         /* eeprom memory mapped location */
 600         if (state->chip_type == 0x9135) {
 601                 if (state->chip_version == 0x02) {
 602                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 603                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 604                         tmp16 = 0x00461d;
 605                 } else {
 606                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 607                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 608                         tmp16 = 0x00461b;
 609                 }
 610
 611                 /* check if eeprom exists */
 612                 ret = af9035_rd_reg(d, tmp16, &tmp);
 613                 if (ret < 0)
 614                         goto err;
 615
 616                 if (tmp == 0x00) {
 617                         dev_dbg(&d->udev->dev, "%s: no eeprom\n", __func__);
 618                         goto skip_eeprom;
 619                 }
 620         }
 621
 622         /* check if there is dual tuners */
 623         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_DUAL_MODE, &tmp);
 624         if (ret < 0)
 625                 goto err;
 626
 627         state->dual_mode = tmp;
 628         dev_dbg(&d->udev->dev, "%s: dual mode=%d\n", __func__,
 629                         state->dual_mode);
 630
 631         if (state->dual_mode) {
 632                 /* read 2nd demodulator I2C address */
 633                 ret = af9035_rd_reg(d,
 634                                 state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
 635                                 &tmp);
 636                 if (ret < 0)
 637                         goto err;
 638
 639                 state->af9033_config[1].i2c_addr = tmp;
 640                 dev_dbg(&d->udev->dev, "%s: 2nd demod I2C addr=%02x\n",
 641                                 __func__, tmp);
 642         }
 643
 644         addr = state->eeprom_addr;
 645
 646         for (i = 0; i < state->dual_mode + 1; i++) {
 647                 /* tuner */
 648                 ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
 649                 if (ret < 0)
 650                         goto err;
 651
 652                 if (tmp == 0x00)
 653                         dev_dbg(&d->udev->dev,
 654                                         "%s: [%d]tuner not set, using default\n",
 655                                         __func__, i);
 656                 else
 657                         state->af9033_config[i].tuner = tmp;
 658
 659                 dev_dbg(&d->udev->dev, "%s: [%d]tuner=%02x\n",
 660                                 __func__, i, state->af9033_config[i].tuner);
 661
 662                 switch (state->af9033_config[i].tuner) {
 663                 case AF9033_TUNER_TUA9001:
 664                 case AF9033_TUNER_FC0011:
 665                 case AF9033_TUNER_MXL5007T:
 666                 case AF9033_TUNER_TDA18218:
 667                 case AF9033_TUNER_FC2580:
 668                 case AF9033_TUNER_FC0012:
 669                         state->af9033_config[i].spec_inv = 1;
 670                         break;
 671                 case AF9033_TUNER_IT9135_38:
 672                 case AF9033_TUNER_IT9135_51:
 673                 case AF9033_TUNER_IT9135_52:
 674                 case AF9033_TUNER_IT9135_60:
 675                 case AF9033_TUNER_IT9135_61:
 676                 case AF9033_TUNER_IT9135_62:
 677                         break;
 678                 default:
 679                         dev_warn(&d->udev->dev,
 680                                         "%s: tuner id=%02x not supported, please report!",
 681                                         KBUILD_MODNAME, tmp);
 682                 }
 683
 684                 /* disable dual mode if driver does not support it */
 685                 if (i == 1)
 686                         switch (state->af9033_config[i].tuner) {
 687                         case AF9033_TUNER_FC0012:
 688                         case AF9033_TUNER_IT9135_38:
 689                         case AF9033_TUNER_IT9135_51:
 690                         case AF9033_TUNER_IT9135_52:
 691                         case AF9033_TUNER_IT9135_60:
 692                         case AF9033_TUNER_IT9135_61:
 693                         case AF9033_TUNER_IT9135_62:
 694                         case AF9033_TUNER_MXL5007T:
 695                                 break;
 696                         default:
 697                                 state->dual_mode = false;
 698                                 dev_info(&d->udev->dev,
 699                                                 "%s: driver does not support 2nd tuner and will disable it",
 700                                                 KBUILD_MODNAME);
 701                 }
 702
 703                 /* tuner IF frequency */
 704                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
 705                 if (ret < 0)
 706                         goto err;
 707
 708                 tmp16 = tmp;
 709
 710                 ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
 711                 if (ret < 0)
 712                         goto err;
 713
 714                 tmp16 |= tmp << 8;
 715
 716                 dev_dbg(&d->udev->dev, "%s: [%d]IF=%d\n", __func__, i, tmp16);
 717
 718                 addr += 0x10; /* shift for the 2nd tuner params */
 719         }
 720
 721 skip_eeprom:
 722         /* get demod clock */
 723         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 724         if (ret < 0)
 725                 goto err;
 726
 727         tmp = (tmp >> 0) & 0x0f;
 728
 729         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 730                 if (state->chip_type == 0x9135)
 731                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 732                 else
 733                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 734         }
 735
 736         return 0;
 737
 738 err:
 739         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 740
 741         return ret;
 742 }
 743
 744 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
 745                 int cmd, int arg)
 746 {
 747         int ret;
 748         u8 val;
 749
 750         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 751
 752         /*
 753          * CEN     always enabled by hardware wiring
 754          * RESETN  GPIOT3
 755          * RXEN    GPIOT2
 756          */
 757
 758         switch (cmd) {
 759         case TUA9001_CMD_RESETN:
 760                 if (arg)
 761                         val = 0x00;
 762                 else
 763                         val = 0x01;
 764
 765                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
 766                 if (ret < 0)
 767                         goto err;
 768                 break;
 769         case TUA9001_CMD_RXEN:
 770                 if (arg)
 771                         val = 0x01;
 772                 else
 773                         val = 0x00;
 774
 775                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
 776                 if (ret < 0)
 777                         goto err;
 778                 break;
 779         }
 780
 781         return 0;
 782
 783 err:
 784         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 785
 786         return ret;
 787 }
 788
 789
 790 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
 791                 int cmd, int arg)
 792 {
 793         int ret;
 794
 795         switch (cmd) {
 796         case FC0011_FE_CALLBACK_POWER:
 797                 /* Tuner enable */
 798                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
 799                 if (ret < 0)
 800                         goto err;
 801
 802                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
 803                 if (ret < 0)
 804                         goto err;
 805
 806                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
 807                 if (ret < 0)
 808                         goto err;
 809
 810                 /* LED */
 811                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
 812                 if (ret < 0)
 813                         goto err;
 814
 815                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
 816                 if (ret < 0)
 817                         goto err;
 818
 819                 usleep_range(10000, 50000);
 820                 break;
 821         case FC0011_FE_CALLBACK_RESET:
 822                 ret = af9035_wr_reg(d, 0xd8e9, 1);
 823                 if (ret < 0)
 824                         goto err;
 825
 826                 ret = af9035_wr_reg(d, 0xd8e8, 1);
 827                 if (ret < 0)
 828                         goto err;
 829
 830                 ret = af9035_wr_reg(d, 0xd8e7, 1);
 831                 if (ret < 0)
 832                         goto err;
 833
 834                 usleep_range(10000, 20000);
 835
 836                 ret = af9035_wr_reg(d, 0xd8e7, 0);
 837                 if (ret < 0)
 838                         goto err;
 839
 840                 usleep_range(10000, 20000);
 841                 break;
 842         default:
 843                 ret = -EINVAL;
 844                 goto err;
 845         }
 846
 847         return 0;
 848
 849 err:
 850         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 851
 852         return ret;
 853 }
 854
 855 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 856 {
 857         struct state *state = d_to_priv(d);
 858
 859         switch (state->af9033_config[0].tuner) {
 860         case AF9033_TUNER_FC0011:
 861                 return af9035_fc0011_tuner_callback(d, cmd, arg);
 862         case AF9033_TUNER_TUA9001:
 863                 return af9035_tua9001_tuner_callback(d, cmd, arg);
 864         default:
 865                 break;
 866         }
 867
 868         return 0;
 869 }
 870
 871 static int af9035_frontend_callback(void *adapter_priv, int component,
 872                                     int cmd, int arg)
 873 {
 874         struct i2c_adapter *adap = adapter_priv;
 875         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 876
 877         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 878                         __func__, component, cmd, arg);
 879
 880         switch (component) {
 881         case DVB_FRONTEND_COMPONENT_TUNER:
 882                 return af9035_tuner_callback(d, cmd, arg);
 883         default:
 884                 break;
 885         }
 886
 887         return 0;
 888 }
 889
 890 static int af9035_get_adapter_count(struct dvb_usb_device *d)
 891 {
 892         struct state *state = d_to_priv(d);
 893
 894         /* disable 2nd adapter as we don't have PID filters implemented */
 895         if (d->udev->speed == USB_SPEED_FULL)
 896                 return 1;
 897         else
 898                 return state->dual_mode + 1;
 899 }
 900
 901 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
 902 {
 903         struct state *state = adap_to_priv(adap);
 904         struct dvb_usb_device *d = adap_to_d(adap);
 905         int ret;
 906         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 907
 908         if (!state->af9033_config[adap->id].tuner) {
 909                 /* unsupported tuner */
 910                 ret = -ENODEV;
 911                 goto err;
 912         }
 913
 914         /* attach demodulator */
 915         adap->fe[0] = dvb_attach(af9033_attach, &state->af9033_config[adap->id],
 916                         &d->i2c_adap);
 917         if (adap->fe[0] == NULL) {
 918                 ret = -ENODEV;
 919                 goto err;
 920         }
 921
 922         /* disable I2C-gate */
 923         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
 924         adap->fe[0]->callback = af9035_frontend_callback;
 925
 926         return 0;
 927
 928 err:
 929         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 930
 931         return ret;
 932 }
 933
 934 static struct tua9001_config af9035_tua9001_config = {
 935         .i2c_addr = 0x60,
 936 };
 937
 938 static const struct fc0011_config af9035_fc0011_config = {
 939         .i2c_address = 0x60,
 940 };
 941
 942 static struct mxl5007t_config af9035_mxl5007t_config[] = {
 943         {
 944                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
 945                 .if_freq_hz = MxL_IF_4_57_MHZ,
 946                 .invert_if = 0,
 947                 .loop_thru_enable = 0,
 948                 .clk_out_enable = 0,
 949                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
 950         }, {
 951                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
 952                 .if_freq_hz = MxL_IF_4_57_MHZ,
 953                 .invert_if = 0,
 954                 .loop_thru_enable = 1,
 955                 .clk_out_enable = 1,
 956                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
 957         }
 958 };
 959
 960 static struct tda18218_config af9035_tda18218_config = {
 961         .i2c_address = 0x60,
 962         .i2c_wr_max = 21,
 963 };
 964
 965 static const struct fc2580_config af9035_fc2580_config = {
 966         .i2c_addr = 0x56,
 967         .clock = 16384000,
 968 };
 969
 970 static const struct fc0012_config af9035_fc0012_config[] = {
 971         {
 972                 .i2c_address = 0x63,
 973                 .xtal_freq = FC_XTAL_36_MHZ,
 974                 .dual_master = true,
 975                 .loop_through = true,
 976                 .clock_out = true,
 977         }, {
 978                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
 979                 .xtal_freq = FC_XTAL_36_MHZ,
 980                 .dual_master = true,
 981         }
 982 };
 983
 984 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
 985 {
 986         struct state *state = adap_to_priv(adap);
 987         struct dvb_usb_device *d = adap_to_d(adap);
 988         int ret;
 989         struct dvb_frontend *fe;
 990         struct i2c_msg msg[1];
 991         u8 tuner_addr;
 992         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 993
 994         /*
 995          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
 996          * to carry info about used I2C bus for dual tuner configuration.
 997          */
 998
 999         switch (state->af9033_config[adap->id].tuner) {
1000         case AF9033_TUNER_TUA9001:
1001                 /* AF9035 gpiot3 = TUA9001 RESETN
1002                    AF9035 gpiot2 = TUA9001 RXEN */
1003
1004                 /* configure gpiot2 and gpiot2 as output */
1005                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1006                 if (ret < 0)
1007                         goto err;
1008
1009                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1010                 if (ret < 0)
1011                         goto err;
1012
1013                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1014                 if (ret < 0)
1015                         goto err;
1016
1017                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1018                 if (ret < 0)
1019                         goto err;
1020
1021                 /* attach tuner */
1022                 fe = dvb_attach(tua9001_attach, adap->fe[0],
1023                                 &d->i2c_adap, &af9035_tua9001_config);
1024                 break;
1025         case AF9033_TUNER_FC0011:
1026                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1027                                 &d->i2c_adap, &af9035_fc0011_config);
1028                 break;
1029         case AF9033_TUNER_MXL5007T:
1030                 if (adap->id == 0) {
1031                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1032                         if (ret < 0)
1033                                 goto err;
1034
1035                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1036                         if (ret < 0)
1037                                 goto err;
1038
1039                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1040                         if (ret < 0)
1041                                 goto err;
1042
1043                         msleep(30);
1044
1045                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1046                         if (ret < 0)
1047                                 goto err;
1048
1049                         msleep(300);
1050
1051                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1052                         if (ret < 0)
1053                                 goto err;
1054
1055                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1056                         if (ret < 0)
1057                                 goto err;
1058
1059                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1060                         if (ret < 0)
1061                                 goto err;
1062
1063                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1064                         if (ret < 0)
1065                                 goto err;
1066
1067                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1068                         if (ret < 0)
1069                                 goto err;
1070
1071                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1072                         if (ret < 0)
1073                                 goto err;
1074
1075                         tuner_addr = 0x60;
1076                 } else {
1077                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1078                 }
1079
1080                 /* attach tuner */
1081                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1082                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1083                 break;
1084         case AF9033_TUNER_TDA18218:
1085                 /* attach tuner */
1086                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1087                                 &d->i2c_adap, &af9035_tda18218_config);
1088                 break;
1089         case AF9033_TUNER_FC2580:
1090                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1091                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1092                 if (ret < 0)
1093                         goto err;
1094
1095                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1096                 if (ret < 0)
1097                         goto err;
1098
1099                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1100                 if (ret < 0)
1101                         goto err;
1102
1103                 usleep_range(10000, 50000);
1104                 /* attach tuner */
1105                 fe = dvb_attach(fc2580_attach, adap->fe[0],
1106                                 &d->i2c_adap, &af9035_fc2580_config);
1107                 break;
1108         case AF9033_TUNER_FC0012:
1109                 /*
1110                  * AF9035 gpiot2 = FC0012 enable
1111                  * XXX: there seems to be something on gpioh8 too, but on my
1112                  * my test I didn't find any difference.
1113                  */
1114
1115                 if (adap->id == 0) {
1116                         /* configure gpiot2 as output and high */
1117                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1118                         if (ret < 0)
1119                                 goto err;
1120
1121                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1122                         if (ret < 0)
1123                                 goto err;
1124
1125                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1126                         if (ret < 0)
1127                                 goto err;
1128                 } else {
1129                         /*
1130                          * FIXME: That belongs for the FC0012 driver.
1131                          * Write 02 to FC0012 master tuner register 0d directly
1132                          * in order to make slave tuner working.
1133                          */
1134                         msg[0].addr = 0x63;
1135                         msg[0].flags = 0;
1136                         msg[0].len = 2;
1137                         msg[0].buf = "\x0d\x02";
1138                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1139                         if (ret < 0)
1140                                 goto err;
1141                 }
1142
1143                 usleep_range(10000, 50000);
1144
1145                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1146                                 &af9035_fc0012_config[adap->id]);
1147                 break;
1148         case AF9033_TUNER_IT9135_38:
1149         case AF9033_TUNER_IT9135_51:
1150         case AF9033_TUNER_IT9135_52:
1151         case AF9033_TUNER_IT9135_60:
1152         case AF9033_TUNER_IT9135_61:
1153         case AF9033_TUNER_IT9135_62:
1154                 /* attach tuner */
1155                 fe = dvb_attach(it913x_attach, adap->fe[0], &d->i2c_adap,
1156                                 state->af9033_config[adap->id].i2c_addr,
1157                                 state->af9033_config[0].tuner);
1158                 break;
1159         default:
1160                 fe = NULL;
1161         }
1162
1163         if (fe == NULL) {
1164                 ret = -ENODEV;
1165                 goto err;
1166         }
1167
1168         return 0;
1169
1170 err:
1171         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1172
1173         return ret;
1174 }
1175
1176 static int af9035_init(struct dvb_usb_device *d)
1177 {
1178         struct state *state = d_to_priv(d);
1179         int ret, i;
1180         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1181         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1182         struct reg_val_mask tab[] = {
1183                 { 0x80f99d, 0x01, 0x01 },
1184                 { 0x80f9a4, 0x01, 0x01 },
1185                 { 0x00dd11, 0x00, 0x20 },
1186                 { 0x00dd11, 0x00, 0x40 },
1187                 { 0x00dd13, 0x00, 0x20 },
1188                 { 0x00dd13, 0x00, 0x40 },
1189                 { 0x00dd11, 0x20, 0x20 },
1190                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1191                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1192                 { 0x00dd0c, packet_size, 0xff},
1193                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1194                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1195                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1196                 { 0x00dd0d, packet_size, 0xff },
1197                 { 0x80f9a3, state->dual_mode, 0x01 },
1198                 { 0x80f9cd, state->dual_mode, 0x01 },
1199                 { 0x80f99d, 0x00, 0x01 },
1200                 { 0x80f9a4, 0x00, 0x01 },
1201         };
1202
1203         dev_dbg(&d->udev->dev, "%s: USB speed=%d frame_size=%04x " \
1204                         "packet_size=%02x\n", __func__,
1205                         d->udev->speed, frame_size, packet_size);
1206
1207         /* init endpoints */
1208         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1209                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1210                                 tab[i].mask);
1211                 if (ret < 0)
1212                         goto err;
1213         }
1214
1215         return 0;
1216
1217 err:
1218         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1219
1220         return ret;
1221 }
1222
1223 #if IS_ENABLED(CONFIG_RC_CORE)
1224 static int af9035_rc_query(struct dvb_usb_device *d)
1225 {
1226         int ret;
1227         u32 key;
1228         u8 buf[4];
1229         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1230
1231         ret = af9035_ctrl_msg(d, &req);
1232         if (ret == 1)
1233                 return 0;
1234         else if (ret < 0)
1235                 goto err;
1236
1237         if ((buf[2] + buf[3]) == 0xff) {
1238                 if ((buf[0] + buf[1]) == 0xff) {
1239                         /* NEC standard 16bit */
1240                         key = buf[0] << 8 | buf[2];
1241                 } else {
1242                         /* NEC extended 24bit */
1243                         key = buf[0] << 16 | buf[1] << 8 | buf[2];
1244                 }
1245         } else {
1246                 /* NEC full code 32bit */
1247                 key = buf[0] << 24 | buf[1] << 16 | buf[2] << 8 | buf[3];
1248         }
1249
1250         dev_dbg(&d->udev->dev, "%s: %*ph\n", __func__, 4, buf);
1251
1252         rc_keydown(d->rc_dev, key, 0);
1253
1254         return 0;
1255
1256 err:
1257         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1258
1259         return ret;
1260 }
1261
1262 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1263 {
1264         struct state *state = d_to_priv(d);
1265         int ret;
1266         u8 tmp;
1267
1268         ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_MODE, &tmp);
1269         if (ret < 0)
1270                 goto err;
1271
1272         dev_dbg(&d->udev->dev, "%s: ir_mode=%02x\n", __func__, tmp);
1273
1274         /* don't activate rc if in HID mode or if not available */
1275         if (tmp == 5) {
1276                 ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_TYPE,
1277                                 &tmp);
1278                 if (ret < 0)
1279                         goto err;
1280
1281                 dev_dbg(&d->udev->dev, "%s: ir_type=%02x\n", __func__, tmp);
1282
1283                 switch (tmp) {
1284                 case 0: /* NEC */
1285                 default:
1286                         rc->allowed_protos = RC_BIT_NEC;
1287                         break;
1288                 case 1: /* RC6 */
1289                         rc->allowed_protos = RC_BIT_RC6_MCE;
1290                         break;
1291                 }
1292
1293                 rc->query = af9035_rc_query;
1294                 rc->interval = 500;
1295
1296                 /* load empty to enable rc */
1297                 if (!rc->map_name)
1298                         rc->map_name = RC_MAP_EMPTY;
1299         }
1300
1301         return 0;
1302
1303 err:
1304         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1305
1306         return ret;
1307 }
1308 #else
1309         #define af9035_get_rc_config NULL
1310 #endif
1311
1312 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1313                 struct usb_data_stream_properties *stream)
1314 {
1315         struct dvb_usb_device *d = fe_to_d(fe);
1316         dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, fe_to_adap(fe)->id);
1317
1318         if (d->udev->speed == USB_SPEED_FULL)
1319                 stream->u.bulk.buffersize = 5 * 188;
1320
1321         return 0;
1322 }
1323
1324 /*
1325  * FIXME: PID filter is property of demodulator and should be moved to the
1326  * correct driver. Also we support only adapter #0 PID filter and will
1327  * disable adapter #1 if USB1.1 is used.
1328  */
1329 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1330 {
1331         struct dvb_usb_device *d = adap_to_d(adap);
1332         int ret;
1333
1334         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1335
1336         ret = af9035_wr_reg_mask(d, 0x80f993, onoff, 0x01);
1337         if (ret < 0)
1338                 goto err;
1339
1340         return 0;
1341
1342 err:
1343         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1344
1345         return ret;
1346 }
1347
1348 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1349                 int onoff)
1350 {
1351         struct dvb_usb_device *d = adap_to_d(adap);
1352         int ret;
1353         u8 wbuf[2] = {(pid >> 0) & 0xff, (pid >> 8) & 0xff};
1354
1355         dev_dbg(&d->udev->dev, "%s: index=%d pid=%04x onoff=%d\n",
1356                         __func__, index, pid, onoff);
1357
1358         ret = af9035_wr_regs(d, 0x80f996, wbuf, 2);
1359         if (ret < 0)
1360                 goto err;
1361
1362         ret = af9035_wr_reg(d, 0x80f994, onoff);
1363         if (ret < 0)
1364                 goto err;
1365
1366         ret = af9035_wr_reg(d, 0x80f995, index);
1367         if (ret < 0)
1368                 goto err;
1369
1370         return 0;
1371
1372 err:
1373         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1374
1375         return ret;
1376 }
1377
1378 static int af9035_probe(struct usb_interface *intf,
1379                 const struct usb_device_id *id)
1380 {
1381         struct usb_device *udev = interface_to_usbdev(intf);
1382         char manufacturer[sizeof("Afatech")];
1383
1384         memset(manufacturer, 0, sizeof(manufacturer));
1385         usb_string(udev, udev->descriptor.iManufacturer,
1386                         manufacturer, sizeof(manufacturer));
1387         /*
1388          * There is two devices having same ID but different chipset. One uses
1389          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1390          * is iManufacturer string.
1391          *
1392          * idVendor           0x0ccd TerraTec Electronic GmbH
1393          * idProduct          0x0099
1394          * bcdDevice            2.00
1395          * iManufacturer           1 Afatech
1396          * iProduct                2 DVB-T 2
1397          *
1398          * idVendor           0x0ccd TerraTec Electronic GmbH
1399          * idProduct          0x0099
1400          * bcdDevice            2.00
1401          * iManufacturer           1 ITE Technologies, Inc.
1402          * iProduct                2 DVB-T TV Stick
1403          */
1404         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1405                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1406                 if (!strcmp("Afatech", manufacturer)) {
1407                         dev_dbg(&udev->dev, "%s: rejecting device\n", __func__);
1408                         return -ENODEV;
1409                 }
1410         }
1411
1412         return dvb_usbv2_probe(intf, id);
1413 }
1414
1415 /* interface 0 is used by DVB-T receiver and
1416    interface 1 is for remote controller (HID) */
1417 static const struct dvb_usb_device_properties af9035_props = {
1418         .driver_name = KBUILD_MODNAME,
1419         .owner = THIS_MODULE,
1420         .adapter_nr = adapter_nr,
1421         .size_of_priv = sizeof(struct state),
1422
1423         .generic_bulk_ctrl_endpoint = 0x02,
1424         .generic_bulk_ctrl_endpoint_response = 0x81,
1425
1426         .identify_state = af9035_identify_state,
1427         .download_firmware = af9035_download_firmware,
1428
1429         .i2c_algo = &af9035_i2c_algo,
1430         .read_config = af9035_read_config,
1431         .frontend_attach = af9035_frontend_attach,
1432         .tuner_attach = af9035_tuner_attach,
1433         .init = af9035_init,
1434         .get_rc_config = af9035_get_rc_config,
1435         .get_stream_config = af9035_get_stream_config,
1436
1437         .get_adapter_count = af9035_get_adapter_count,
1438         .adapter = {
1439                 {
1440                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1441                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1442
1443                         .pid_filter_count = 32,
1444                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
1445                         .pid_filter = af9035_pid_filter,
1446
1447                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
1448                 }, {
1449                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
1450                 },
1451         },
1452 };
1453
1454 static const struct usb_device_id af9035_id_table[] = {
1455         /* AF9035 devices */
1456         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
1457                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1458         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
1459                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1460         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
1461                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1462         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
1463                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1464         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
1465                 &af9035_props, "Afatech AF9035 reference design", NULL) },
1466         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
1467                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
1468         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
1469                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1470         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
1471                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
1472         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
1473                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1474         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
1475                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
1476         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
1477                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
1478         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
1479                 &af9035_props, "Asus U3100Mini Plus", NULL) },
1480         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
1481                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
1482         /* IT9135 devices */
1483 #if 0
1484         { DVB_USB_DEVICE(0x048d, 0x9135,
1485                 &af9035_props, "IT9135 reference design", NULL) },
1486         { DVB_USB_DEVICE(0x048d, 0x9006,
1487                 &af9035_props, "IT9135 reference design", NULL) },
1488 #endif
1489         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
1490         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
1491                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", NULL) },
1492         { }
1493 };
1494 MODULE_DEVICE_TABLE(usb, af9035_id_table);
1495
1496 static struct usb_driver af9035_usb_driver = {
1497         .name = KBUILD_MODNAME,
1498         .id_table = af9035_id_table,
1499         .probe = af9035_probe,
1500         .disconnect = dvb_usbv2_disconnect,
1501         .suspend = dvb_usbv2_suspend,
1502         .resume = dvb_usbv2_resume,
1503         .reset_resume = dvb_usbv2_reset_resume,
1504         .no_dynamic_id = 1,
1505         .soft_unbind = 1,
1506 };
1507
1508 module_usb_driver(af9035_usb_driver);
1509
1510 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1511 MODULE_DESCRIPTION("Afatech AF9035 driver");
1512 MODULE_LICENSE("GPL");
1513 MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035);
1514 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1);
1515 MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2);