drivers/media/usb/dvb-usb-v2/af9035.c

   1 /*
   2  * Afatech AF9035 DVB USB driver
   3  *
   4  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   5  * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
   6  *
   7  *    This program is free software; you can redistribute it and/or modify
   8  *    it under the terms of the GNU General Public License as published by
   9  *    the Free Software Foundation; either version 2 of the License, or
  10  *    (at your option) any later version.
  11  *
  12  *    This program is distributed in the hope that it will be useful,
  13  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *    GNU General Public License for more details.
  16  *
  17  *    You should have received a copy of the GNU General Public License along
  18  *    with this program; if not, write to the Free Software Foundation, Inc.,
  19  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "af9035.h"
  23
  24 /* Max transfer size done by I2C transfer functions */
  25 #define MAX_XFER_SIZE  64
  26
  27 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  28
  29 static u16 af9035_checksum(const u8 *buf, size_t len)
  30 {
  31         size_t i;
  32         u16 checksum = 0;
  33
  34         for (i = 1; i < len; i++) {
  35                 if (i % 2)
  36                         checksum += buf[i] << 8;
  37                 else
  38                         checksum += buf[i];
  39         }
  40         checksum = ~checksum;
  41
  42         return checksum;
  43 }
  44
  45 static int af9035_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
  46 {
  47 #define REQ_HDR_LEN 4 /* send header size */
  48 #define ACK_HDR_LEN 3 /* rece header size */
  49 #define CHECKSUM_LEN 2
  50 #define USB_TIMEOUT 2000
  51         struct state *state = d_to_priv(d);
  52         struct usb_interface *intf = d->intf;
  53         int ret, wlen, rlen;
  54         u16 checksum, tmp_checksum;
  55
  56         mutex_lock(&d->usb_mutex);
  57
  58         /* buffer overflow check */
  59         if (req->wlen > (BUF_LEN - REQ_HDR_LEN - CHECKSUM_LEN) ||
  60                         req->rlen > (BUF_LEN - ACK_HDR_LEN - CHECKSUM_LEN)) {
  61                 dev_err(&intf->dev, "too much data wlen=%d rlen=%d\n",
  62                         req->wlen, req->rlen);
  63                 ret = -EINVAL;
  64                 goto exit;
  65         }
  66
  67         state->buf[0] = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN - 1;
  68         state->buf[1] = req->mbox;
  69         state->buf[2] = req->cmd;
  70         state->buf[3] = state->seq++;
  71         memcpy(&state->buf[REQ_HDR_LEN], req->wbuf, req->wlen);
  72
  73         wlen = REQ_HDR_LEN + req->wlen + CHECKSUM_LEN;
  74         rlen = ACK_HDR_LEN + req->rlen + CHECKSUM_LEN;
  75
  76         /* calc and add checksum */
  77         checksum = af9035_checksum(state->buf, state->buf[0] - 1);
  78         state->buf[state->buf[0] - 1] = (checksum >> 8);
  79         state->buf[state->buf[0] - 0] = (checksum & 0xff);
  80
  81         /* no ack for these packets */
  82         if (req->cmd == CMD_FW_DL)
  83                 rlen = 0;
  84
  85         ret = dvb_usbv2_generic_rw_locked(d,
  86                         state->buf, wlen, state->buf, rlen);
  87         if (ret)
  88                 goto exit;
  89
  90         /* no ack for those packets */
  91         if (req->cmd == CMD_FW_DL)
  92                 goto exit;
  93
  94         /* verify checksum */
  95         checksum = af9035_checksum(state->buf, rlen - 2);
  96         tmp_checksum = (state->buf[rlen - 2] << 8) | state->buf[rlen - 1];
  97         if (tmp_checksum != checksum) {
  98                 dev_err(&intf->dev, "command=%02x checksum mismatch (%04x != %04x)\n",
  99                         req->cmd, tmp_checksum, checksum);
 100                 ret = -EIO;
 101                 goto exit;
 102         }
 103
 104         /* check status */
 105         if (state->buf[2]) {
 106                 /* fw returns status 1 when IR code was not received */
 107                 if (req->cmd == CMD_IR_GET || state->buf[2] == 1) {
 108                         ret = 1;
 109                         goto exit;
 110                 }
 111
 112                 dev_dbg(&intf->dev, "command=%02x failed fw error=%d\n",
 113                         req->cmd, state->buf[2]);
 114                 ret = -EIO;
 115                 goto exit;
 116         }
 117
 118         /* read request, copy returned data to return buf */
 119         if (req->rlen)
 120                 memcpy(req->rbuf, &state->buf[ACK_HDR_LEN], req->rlen);
 121 exit:
 122         mutex_unlock(&d->usb_mutex);
 123         if (ret < 0)
 124                 dev_dbg(&intf->dev, "failed=%d\n", ret);
 125         return ret;
 126 }
 127
 128 /* write multiple registers */
 129 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 130 {
 131         struct usb_interface *intf = d->intf;
 132         u8 wbuf[MAX_XFER_SIZE];
 133         u8 mbox = (reg >> 16) & 0xff;
 134         struct usb_req req = { CMD_MEM_WR, mbox, 6 + len, wbuf, 0, NULL };
 135
 136         if (6 + len > sizeof(wbuf)) {
 137                 dev_warn(&intf->dev, "i2c wr: len=%d is too big!\n", len);
 138                 return -EOPNOTSUPP;
 139         }
 140
 141         wbuf[0] = len;
 142         wbuf[1] = 2;
 143         wbuf[2] = 0;
 144         wbuf[3] = 0;
 145         wbuf[4] = (reg >> 8) & 0xff;
 146         wbuf[5] = (reg >> 0) & 0xff;
 147         memcpy(&wbuf[6], val, len);
 148
 149         return af9035_ctrl_msg(d, &req);
 150 }
 151
 152 /* read multiple registers */
 153 static int af9035_rd_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 154 {
 155         u8 wbuf[] = { len, 2, 0, 0, (reg >> 8) & 0xff, reg & 0xff };
 156         u8 mbox = (reg >> 16) & 0xff;
 157         struct usb_req req = { CMD_MEM_RD, mbox, sizeof(wbuf), wbuf, len, val };
 158
 159         return af9035_ctrl_msg(d, &req);
 160 }
 161
 162 /* write single register */
 163 static int af9035_wr_reg(struct dvb_usb_device *d, u32 reg, u8 val)
 164 {
 165         return af9035_wr_regs(d, reg, &val, 1);
 166 }
 167
 168 /* read single register */
 169 static int af9035_rd_reg(struct dvb_usb_device *d, u32 reg, u8 *val)
 170 {
 171         return af9035_rd_regs(d, reg, val, 1);
 172 }
 173
 174 /* write single register with mask */
 175 static int af9035_wr_reg_mask(struct dvb_usb_device *d, u32 reg, u8 val,
 176                 u8 mask)
 177 {
 178         int ret;
 179         u8 tmp;
 180
 181         /* no need for read if whole reg is written */
 182         if (mask != 0xff) {
 183                 ret = af9035_rd_regs(d, reg, &tmp, 1);
 184                 if (ret)
 185                         return ret;
 186
 187                 val &= mask;
 188                 tmp &= ~mask;
 189                 val |= tmp;
 190         }
 191
 192         return af9035_wr_regs(d, reg, &val, 1);
 193 }
 194
 195 static int af9035_add_i2c_dev(struct dvb_usb_device *d, const char *type,
 196                 u8 addr, void *platform_data, struct i2c_adapter *adapter)
 197 {
 198         int ret, num;
 199         struct state *state = d_to_priv(d);
 200         struct usb_interface *intf = d->intf;
 201         struct i2c_client *client;
 202         struct i2c_board_info board_info = {
 203                 .addr = addr,
 204                 .platform_data = platform_data,
 205         };
 206
 207         strlcpy(board_info.type, type, I2C_NAME_SIZE);
 208
 209         /* find first free client */
 210         for (num = 0; num < AF9035_I2C_CLIENT_MAX; num++) {
 211                 if (state->i2c_client[num] == NULL)
 212                         break;
 213         }
 214
 215         dev_dbg(&intf->dev, "num=%d\n", num);
 216
 217         if (num == AF9035_I2C_CLIENT_MAX) {
 218                 dev_err(&intf->dev, "I2C client out of index\n");
 219                 ret = -ENODEV;
 220                 goto err;
 221         }
 222
 223         request_module("%s", board_info.type);
 224
 225         /* register I2C device */
 226         client = i2c_new_device(adapter, &board_info);
 227         if (client == NULL || client->dev.driver == NULL) {
 228                 ret = -ENODEV;
 229                 goto err;
 230         }
 231
 232         /* increase I2C driver usage count */
 233         if (!try_module_get(client->dev.driver->owner)) {
 234                 i2c_unregister_device(client);
 235                 ret = -ENODEV;
 236                 goto err;
 237         }
 238
 239         state->i2c_client[num] = client;
 240         return 0;
 241 err:
 242         dev_dbg(&intf->dev, "failed=%d\n", ret);
 243         return ret;
 244 }
 245
 246 static void af9035_del_i2c_dev(struct dvb_usb_device *d)
 247 {
 248         int num;
 249         struct state *state = d_to_priv(d);
 250         struct usb_interface *intf = d->intf;
 251         struct i2c_client *client;
 252
 253         /* find last used client */
 254         num = AF9035_I2C_CLIENT_MAX;
 255         while (num--) {
 256                 if (state->i2c_client[num] != NULL)
 257                         break;
 258         }
 259
 260         dev_dbg(&intf->dev, "num=%d\n", num);
 261
 262         if (num == -1) {
 263                 dev_err(&intf->dev, "I2C client out of index\n");
 264                 goto err;
 265         }
 266
 267         client = state->i2c_client[num];
 268
 269         /* decrease I2C driver usage count */
 270         module_put(client->dev.driver->owner);
 271
 272         /* unregister I2C device */
 273         i2c_unregister_device(client);
 274
 275         state->i2c_client[num] = NULL;
 276         return;
 277 err:
 278         dev_dbg(&intf->dev, "failed\n");
 279 }
 280
 281 static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 282                 struct i2c_msg msg[], int num)
 283 {
 284         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 285         struct state *state = d_to_priv(d);
 286         int ret;
 287         u32 reg;
 288
 289         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 290                 return -EAGAIN;
 291
 292         /*
 293          * AF9035 I2C sub header is 5 bytes long. Meaning of those bytes are:
 294          * 0: data len
 295          * 1: I2C addr << 1
 296          * 2: reg addr len
 297          *    byte 3 and 4 can be used as reg addr
 298          * 3: reg addr MSB
 299          *    used when reg addr len is set to 2
 300          * 4: reg addr LSB
 301          *    used when reg addr len is set to 1 or 2
 302          *
 303          * For the simplify we do not use register addr at all.
 304          * NOTE: As a firmware knows tuner type there is very small possibility
 305          * there could be some tuner I2C hacks done by firmware and this may
 306          * lead problems if firmware expects those bytes are used.
 307          *
 308          * TODO: Here is few hacks. AF9035 chip integrates AF9033 demodulator.
 309          * IT9135 chip integrates AF9033 demodulator and RF tuner. For dual
 310          * tuner devices, there is also external AF9033 demodulator connected
 311          * via external I2C bus. All AF9033 demod I2C traffic, both single and
 312          * dual tuner configuration, is covered by firmware - actual USB IO
 313          * looks just like a memory access.
 314          * In case of IT913x chip, there is own tuner driver. It is implemented
 315          * currently as a I2C driver, even tuner IP block is likely build
 316          * directly into the demodulator memory space and there is no own I2C
 317          * bus. I2C subsystem does not allow register multiple devices to same
 318          * bus, having same slave address. Due to that we reuse demod address,
 319          * shifted by one bit, on that case.
 320          *
 321          * For IT930x we use a different command and the sub header is
 322          * different as well:
 323          * 0: data len
 324          * 1: I2C bus (0x03 seems to be only value used)
 325          * 2: I2C addr << 1
 326          */
 327 #define AF9035_IS_I2C_XFER_WRITE_READ(_msg, _num) \
 328         (_num == 2 && !(_msg[0].flags & I2C_M_RD) && (_msg[1].flags & I2C_M_RD))
 329 #define AF9035_IS_I2C_XFER_WRITE(_msg, _num) \
 330         (_num == 1 && !(_msg[0].flags & I2C_M_RD))
 331 #define AF9035_IS_I2C_XFER_READ(_msg, _num) \
 332         (_num == 1 && (_msg[0].flags & I2C_M_RD))
 333
 334         if (AF9035_IS_I2C_XFER_WRITE_READ(msg, num)) {
 335                 if (msg[0].len > 40 || msg[1].len > 40) {
 336                         /* TODO: correct limits > 40 */
 337                         ret = -EOPNOTSUPP;
 338                 } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 339                            (msg[0].addr == state->af9033_i2c_addr[1])) {
 340                         if (msg[0].len < 3 || msg[1].len < 1) {
 341                                 ret = -EOPNOTSUPP;
 342                                 goto unlock;
 343                         }
 344                         /* demod access via firmware interface */
 345                         reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 346                                         msg[0].buf[2];
 347
 348                         if (msg[0].addr == state->af9033_i2c_addr[1])
 349                                 reg |= 0x100000;
 350
 351                         ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
 352                                         msg[1].len);
 353                 } else if (state->no_read) {
 354                         memset(msg[1].buf, 0, msg[1].len);
 355                         ret = 0;
 356                 } else {
 357                         /* I2C write + read */
 358                         u8 buf[MAX_XFER_SIZE];
 359                         struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len,
 360                                         buf, msg[1].len, msg[1].buf };
 361
 362                         if (state->chip_type == 0x9306) {
 363                                 req.cmd = CMD_GENERIC_I2C_RD;
 364                                 req.wlen = 3 + msg[0].len;
 365                         }
 366                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 367
 368                         buf[0] = msg[1].len;
 369                         if (state->chip_type == 0x9306) {
 370                                 buf[1] = 0x03; /* I2C bus */
 371                                 buf[2] = msg[0].addr << 1;
 372                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 373                         } else {
 374                                 buf[1] = msg[0].addr << 1;
 375                                 buf[3] = 0x00; /* reg addr MSB */
 376                                 buf[4] = 0x00; /* reg addr LSB */
 377
 378                                 /* Keep prev behavior for write req len > 2*/
 379                                 if (msg[0].len > 2) {
 380                                         buf[2] = 0x00; /* reg addr len */
 381                                         memcpy(&buf[5], msg[0].buf, msg[0].len);
 382
 383                                 /* Use reg addr fields if write req len <= 2 */
 384                                 } else {
 385                                         req.wlen = 5;
 386                                         buf[2] = msg[0].len;
 387                                         if (msg[0].len == 2) {
 388                                                 buf[3] = msg[0].buf[0];
 389                                                 buf[4] = msg[0].buf[1];
 390                                         } else if (msg[0].len == 1) {
 391                                                 buf[4] = msg[0].buf[0];
 392                                         }
 393                                 }
 394                         }
 395                         ret = af9035_ctrl_msg(d, &req);
 396                 }
 397         } else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) {
 398                 if (msg[0].len > 40) {
 399                         /* TODO: correct limits > 40 */
 400                         ret = -EOPNOTSUPP;
 401                 } else if ((msg[0].addr == state->af9033_i2c_addr[0]) ||
 402                            (msg[0].addr == state->af9033_i2c_addr[1])) {
 403                         if (msg[0].len < 3) {
 404                                 ret = -EOPNOTSUPP;
 405                                 goto unlock;
 406                         }
 407                         /* demod access via firmware interface */
 408                         reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
 409                                         msg[0].buf[2];
 410
 411                         if (msg[0].addr == state->af9033_i2c_addr[1])
 412                                 reg |= 0x100000;
 413
 414                         ret = af9035_wr_regs(d, reg, &msg[0].buf[3], msg[0].len - 3);
 415                 } else {
 416                         /* I2C write */
 417                         u8 buf[MAX_XFER_SIZE];
 418                         struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len,
 419                                         buf, 0, NULL };
 420
 421                         if (state->chip_type == 0x9306) {
 422                                 req.cmd = CMD_GENERIC_I2C_WR;
 423                                 req.wlen = 3 + msg[0].len;
 424                         }
 425
 426                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 427                         buf[0] = msg[0].len;
 428                         if (state->chip_type == 0x9306) {
 429                                 buf[1] = 0x03; /* I2C bus */
 430                                 buf[2] = msg[0].addr << 1;
 431                                 memcpy(&buf[3], msg[0].buf, msg[0].len);
 432                         } else {
 433                                 buf[1] = msg[0].addr << 1;
 434                                 buf[2] = 0x00; /* reg addr len */
 435                                 buf[3] = 0x00; /* reg addr MSB */
 436                                 buf[4] = 0x00; /* reg addr LSB */
 437                                 memcpy(&buf[5], msg[0].buf, msg[0].len);
 438                         }
 439                         ret = af9035_ctrl_msg(d, &req);
 440                 }
 441         } else if (AF9035_IS_I2C_XFER_READ(msg, num)) {
 442                 if (msg[0].len > 40) {
 443                         /* TODO: correct limits > 40 */
 444                         ret = -EOPNOTSUPP;
 445                 } else if (state->no_read) {
 446                         memset(msg[0].buf, 0, msg[0].len);
 447                         ret = 0;
 448                 } else {
 449                         /* I2C read */
 450                         u8 buf[5];
 451                         struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 452                                                 buf, msg[0].len, msg[0].buf };
 453
 454                         if (state->chip_type == 0x9306) {
 455                                 req.cmd = CMD_GENERIC_I2C_RD;
 456                                 req.wlen = 3;
 457                         }
 458                         req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 459                         buf[0] = msg[0].len;
 460                         if (state->chip_type == 0x9306) {
 461                                 buf[1] = 0x03; /* I2C bus */
 462                                 buf[2] = msg[0].addr << 1;
 463                         } else {
 464                                 buf[1] = msg[0].addr << 1;
 465                                 buf[2] = 0x00; /* reg addr len */
 466                                 buf[3] = 0x00; /* reg addr MSB */
 467                                 buf[4] = 0x00; /* reg addr LSB */
 468                         }
 469                         ret = af9035_ctrl_msg(d, &req);
 470                 }
 471         } else {
 472                 /*
 473                  * We support only three kind of I2C transactions:
 474                  * 1) 1 x write + 1 x read (repeated start)
 475                  * 2) 1 x write
 476                  * 3) 1 x read
 477                  */
 478                 ret = -EOPNOTSUPP;
 479         }
 480
 481 unlock:
 482         mutex_unlock(&d->i2c_mutex);
 483
 484         if (ret < 0)
 485                 return ret;
 486         else
 487                 return num;
 488 }
 489
 490 static u32 af9035_i2c_functionality(struct i2c_adapter *adapter)
 491 {
 492         return I2C_FUNC_I2C;
 493 }
 494
 495 static struct i2c_algorithm af9035_i2c_algo = {
 496         .master_xfer = af9035_i2c_master_xfer,
 497         .functionality = af9035_i2c_functionality,
 498 };
 499
 500 static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 501 {
 502         struct state *state = d_to_priv(d);
 503         struct usb_interface *intf = d->intf;
 504         int ret, i, ts_mode_invalid;
 505         unsigned int utmp, eeprom_addr;
 506         u8 tmp;
 507         u8 wbuf[1] = { 1 };
 508         u8 rbuf[4];
 509         struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf,
 510                         sizeof(rbuf), rbuf };
 511
 512         ret = af9035_rd_regs(d, 0x1222, rbuf, 3);
 513         if (ret < 0)
 514                 goto err;
 515
 516         state->chip_version = rbuf[0];
 517         state->chip_type = rbuf[2] << 8 | rbuf[1] << 0;
 518
 519         ret = af9035_rd_reg(d, 0x384f, &state->prechip_version);
 520         if (ret < 0)
 521                 goto err;
 522
 523         dev_info(&intf->dev, "prechip_version=%02x chip_version=%02x chip_type=%04x\n",
 524                  state->prechip_version, state->chip_version, state->chip_type);
 525
 526         if (state->chip_type == 0x9135) {
 527                 if (state->chip_version == 0x02) {
 528                         *name = AF9035_FIRMWARE_IT9135_V2;
 529                         utmp = 0x00461d;
 530                 } else {
 531                         *name = AF9035_FIRMWARE_IT9135_V1;
 532                         utmp = 0x00461b;
 533                 }
 534
 535                 /* Check if eeprom exists */
 536                 ret = af9035_rd_reg(d, utmp, &tmp);
 537                 if (ret < 0)
 538                         goto err;
 539
 540                 if (tmp == 0x00) {
 541                         dev_dbg(&intf->dev, "no eeprom\n");
 542                         state->no_eeprom = true;
 543                         goto check_firmware_status;
 544                 }
 545
 546                 eeprom_addr = EEPROM_BASE_IT9135;
 547         } else if (state->chip_type == 0x9306) {
 548                 *name = AF9035_FIRMWARE_IT9303;
 549                 state->no_eeprom = true;
 550                 goto check_firmware_status;
 551         } else {
 552                 *name = AF9035_FIRMWARE_AF9035;
 553                 eeprom_addr = EEPROM_BASE_AF9035;
 554         }
 555
 556         /* Read and store eeprom */
 557         for (i = 0; i < 256; i += 32) {
 558                 ret = af9035_rd_regs(d, eeprom_addr + i, &state->eeprom[i], 32);
 559                 if (ret < 0)
 560                         goto err;
 561         }
 562
 563         dev_dbg(&intf->dev, "eeprom dump:\n");
 564         for (i = 0; i < 256; i += 16)
 565                 dev_dbg(&intf->dev, "%*ph\n", 16, &state->eeprom[i]);
 566
 567         /* check for dual tuner mode */
 568         tmp = state->eeprom[EEPROM_TS_MODE];
 569         ts_mode_invalid = 0;
 570         switch (tmp) {
 571         case 0:
 572                 break;
 573         case 1:
 574         case 3:
 575                 state->dual_mode = true;
 576                 break;
 577         case 5:
 578                 if (state->chip_type != 0x9135 && state->chip_type != 0x9306)
 579                         state->dual_mode = true;        /* AF9035 */
 580                 else
 581                         ts_mode_invalid = 1;
 582                 break;
 583         default:
 584                 ts_mode_invalid = 1;
 585         }
 586
 587         dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode);
 588
 589         if (ts_mode_invalid)
 590                 dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 591
 592 check_firmware_status:
 593         ret = af9035_ctrl_msg(d, &req);
 594         if (ret < 0)
 595                 goto err;
 596
 597         dev_dbg(&intf->dev, "reply=%*ph\n", 4, rbuf);
 598         if (rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])
 599                 ret = WARM;
 600         else
 601                 ret = COLD;
 602
 603         return ret;
 604
 605 err:
 606         dev_dbg(&intf->dev, "failed=%d\n", ret);
 607
 608         return ret;
 609 }
 610
 611 static int af9035_download_firmware_old(struct dvb_usb_device *d,
 612                 const struct firmware *fw)
 613 {
 614         struct usb_interface *intf = d->intf;
 615         int ret, i, j, len;
 616         u8 wbuf[1];
 617         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 618         struct usb_req req_fw_dl = { CMD_FW_DL, 0, 0, wbuf, 0, NULL };
 619         u8 hdr_core;
 620         u16 hdr_addr, hdr_data_len, hdr_checksum;
 621         #define MAX_DATA 58
 622         #define HDR_SIZE 7
 623
 624         /*
 625          * Thanks to Daniel Glöckner <daniel-gl@gmx.net> about that info!
 626          *
 627          * byte 0: MCS 51 core
 628          *  There are two inside the AF9035 (1=Link and 2=OFDM) with separate
 629          *  address spaces
 630          * byte 1-2: Big endian destination address
 631          * byte 3-4: Big endian number of data bytes following the header
 632          * byte 5-6: Big endian header checksum, apparently ignored by the chip
 633          *  Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
 634          */
 635
 636         for (i = fw->size; i > HDR_SIZE;) {
 637                 hdr_core = fw->data[fw->size - i + 0];
 638                 hdr_addr = fw->data[fw->size - i + 1] << 8;
 639                 hdr_addr |= fw->data[fw->size - i + 2] << 0;
 640                 hdr_data_len = fw->data[fw->size - i + 3] << 8;
 641                 hdr_data_len |= fw->data[fw->size - i + 4] << 0;
 642                 hdr_checksum = fw->data[fw->size - i + 5] << 8;
 643                 hdr_checksum |= fw->data[fw->size - i + 6] << 0;
 644
 645                 dev_dbg(&intf->dev, "core=%d addr=%04x data_len=%d checksum=%04x\n",
 646                         hdr_core, hdr_addr, hdr_data_len, hdr_checksum);
 647
 648                 if (((hdr_core != 1) && (hdr_core != 2)) ||
 649                                 (hdr_data_len > i)) {
 650                         dev_dbg(&intf->dev, "bad firmware\n");
 651                         break;
 652                 }
 653
 654                 /* download begin packet */
 655                 req.cmd = CMD_FW_DL_BEGIN;
 656                 ret = af9035_ctrl_msg(d, &req);
 657                 if (ret < 0)
 658                         goto err;
 659
 660                 /* download firmware packet(s) */
 661                 for (j = HDR_SIZE + hdr_data_len; j > 0; j -= MAX_DATA) {
 662                         len = j;
 663                         if (len > MAX_DATA)
 664                                 len = MAX_DATA;
 665                         req_fw_dl.wlen = len;
 666                         req_fw_dl.wbuf = (u8 *) &fw->data[fw->size - i +
 667                                         HDR_SIZE + hdr_data_len - j];
 668                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 669                         if (ret < 0)
 670                                 goto err;
 671                 }
 672
 673                 /* download end packet */
 674                 req.cmd = CMD_FW_DL_END;
 675                 ret = af9035_ctrl_msg(d, &req);
 676                 if (ret < 0)
 677                         goto err;
 678
 679                 i -= hdr_data_len + HDR_SIZE;
 680
 681                 dev_dbg(&intf->dev, "data uploaded=%zu\n", fw->size - i);
 682         }
 683
 684         /* print warn if firmware is bad, continue and see what happens */
 685         if (i)
 686                 dev_warn(&intf->dev, "bad firmware\n");
 687
 688         return 0;
 689
 690 err:
 691         dev_dbg(&intf->dev, "failed=%d\n", ret);
 692
 693         return ret;
 694 }
 695
 696 static int af9035_download_firmware_new(struct dvb_usb_device *d,
 697                 const struct firmware *fw)
 698 {
 699         struct usb_interface *intf = d->intf;
 700         int ret, i, i_prev;
 701         struct usb_req req_fw_dl = { CMD_FW_SCATTER_WR, 0, 0, NULL, 0, NULL };
 702         #define HDR_SIZE 7
 703
 704         /*
 705          * There seems to be following firmware header. Meaning of bytes 0-3
 706          * is unknown.
 707          *
 708          * 0: 3
 709          * 1: 0, 1
 710          * 2: 0
 711          * 3: 1, 2, 3
 712          * 4: addr MSB
 713          * 5: addr LSB
 714          * 6: count of data bytes ?
 715          */
 716         for (i = HDR_SIZE, i_prev = 0; i <= fw->size; i++) {
 717                 if (i == fw->size ||
 718                                 (fw->data[i + 0] == 0x03 &&
 719                                 (fw->data[i + 1] == 0x00 ||
 720                                 fw->data[i + 1] == 0x01) &&
 721                                 fw->data[i + 2] == 0x00)) {
 722                         req_fw_dl.wlen = i - i_prev;
 723                         req_fw_dl.wbuf = (u8 *) &fw->data[i_prev];
 724                         i_prev = i;
 725                         ret = af9035_ctrl_msg(d, &req_fw_dl);
 726                         if (ret < 0)
 727                                 goto err;
 728
 729                         dev_dbg(&intf->dev, "data uploaded=%d\n", i);
 730                 }
 731         }
 732
 733         return 0;
 734
 735 err:
 736         dev_dbg(&intf->dev, "failed=%d\n", ret);
 737
 738         return ret;
 739 }
 740
 741 static int af9035_download_firmware(struct dvb_usb_device *d,
 742                 const struct firmware *fw)
 743 {
 744         struct usb_interface *intf = d->intf;
 745         struct state *state = d_to_priv(d);
 746         int ret;
 747         u8 wbuf[1];
 748         u8 rbuf[4];
 749         u8 tmp;
 750         struct usb_req req = { 0, 0, 0, NULL, 0, NULL };
 751         struct usb_req req_fw_ver = { CMD_FW_QUERYINFO, 0, 1, wbuf, 4, rbuf };
 752
 753         dev_dbg(&intf->dev, "\n");
 754
 755         /*
 756          * In case of dual tuner configuration we need to do some extra
 757          * initialization in order to download firmware to slave demod too,
 758          * which is done by master demod.
 759          * Master feeds also clock and controls power via GPIO.
 760          */
 761         if (state->dual_mode) {
 762                 /* configure gpioh1, reset & power slave demod */
 763                 ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01);
 764                 if (ret < 0)
 765                         goto err;
 766
 767                 ret = af9035_wr_reg_mask(d, 0x00d8b1, 0x01, 0x01);
 768                 if (ret < 0)
 769                         goto err;
 770
 771                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x00, 0x01);
 772                 if (ret < 0)
 773                         goto err;
 774
 775                 usleep_range(10000, 50000);
 776
 777                 ret = af9035_wr_reg_mask(d, 0x00d8af, 0x01, 0x01);
 778                 if (ret < 0)
 779                         goto err;
 780
 781                 /* tell the slave I2C address */
 782                 tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 783
 784                 /* Use default I2C address if eeprom has no address set */
 785                 if (!tmp)
 786                         tmp = 0x1d << 1; /* 8-bit format used by chip */
 787
 788                 if ((state->chip_type == 0x9135) ||
 789                                 (state->chip_type == 0x9306)) {
 790                         ret = af9035_wr_reg(d, 0x004bfb, tmp);
 791                         if (ret < 0)
 792                                 goto err;
 793                 } else {
 794                         ret = af9035_wr_reg(d, 0x00417f, tmp);
 795                         if (ret < 0)
 796                                 goto err;
 797
 798                         /* enable clock out */
 799                         ret = af9035_wr_reg_mask(d, 0x00d81a, 0x01, 0x01);
 800                         if (ret < 0)
 801                                 goto err;
 802                 }
 803         }
 804
 805         if (fw->data[0] == 0x01)
 806                 ret = af9035_download_firmware_old(d, fw);
 807         else
 808                 ret = af9035_download_firmware_new(d, fw);
 809         if (ret < 0)
 810                 goto err;
 811
 812         /* firmware loaded, request boot */
 813         req.cmd = CMD_FW_BOOT;
 814         ret = af9035_ctrl_msg(d, &req);
 815         if (ret < 0)
 816                 goto err;
 817
 818         /* ensure firmware starts */
 819         wbuf[0] = 1;
 820         ret = af9035_ctrl_msg(d, &req_fw_ver);
 821         if (ret < 0)
 822                 goto err;
 823
 824         if (!(rbuf[0] || rbuf[1] || rbuf[2] || rbuf[3])) {
 825                 dev_err(&intf->dev, "firmware did not run\n");
 826                 ret = -ENODEV;
 827                 goto err;
 828         }
 829
 830         dev_info(&intf->dev, "firmware version=%d.%d.%d.%d",
 831                  rbuf[0], rbuf[1], rbuf[2], rbuf[3]);
 832
 833         return 0;
 834
 835 err:
 836         dev_dbg(&intf->dev, "failed=%d\n", ret);
 837
 838         return ret;
 839 }
 840
 841 static int af9035_read_config(struct dvb_usb_device *d)
 842 {
 843         struct usb_interface *intf = d->intf;
 844         struct state *state = d_to_priv(d);
 845         int ret, i;
 846         u8 tmp;
 847         u16 tmp16;
 848
 849         /* Demod I2C address */
 850         state->af9033_i2c_addr[0] = 0x1c;
 851         state->af9033_i2c_addr[1] = 0x1d;
 852         state->af9033_config[0].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 853         state->af9033_config[1].adc_multiplier = AF9033_ADC_MULTIPLIER_2X;
 854         state->af9033_config[0].ts_mode = AF9033_TS_MODE_USB;
 855         state->af9033_config[1].ts_mode = AF9033_TS_MODE_SERIAL;
 856
 857         if (state->chip_type == 0x9135) {
 858                 /* feed clock for integrated RF tuner */
 859                 state->af9033_config[0].dyn0_clk = true;
 860                 state->af9033_config[1].dyn0_clk = true;
 861
 862                 if (state->chip_version == 0x02) {
 863                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
 864                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
 865                 } else {
 866                         state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
 867                         state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
 868                 }
 869
 870                 if (state->no_eeprom) {
 871                         /* Remote controller to NEC polling by default */
 872                         state->ir_mode = 0x05;
 873                         state->ir_type = 0x00;
 874
 875                         goto skip_eeprom;
 876                 }
 877         } else if (state->chip_type == 0x9306) {
 878                 /*
 879                  * IT930x is an USB bridge, only single demod-single tuner
 880                  * configurations seen so far.
 881                  */
 882                 return 0;
 883         }
 884
 885         /* Remote controller */
 886         state->ir_mode = state->eeprom[EEPROM_IR_MODE];
 887         state->ir_type = state->eeprom[EEPROM_IR_TYPE];
 888
 889         if (state->dual_mode) {
 890                 /* Read 2nd demodulator I2C address. 8-bit format on eeprom */
 891                 tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 892                 if (tmp)
 893                         state->af9033_i2c_addr[1] = tmp >> 1;
 894
 895                 dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n",
 896                         state->af9033_i2c_addr[1]);
 897         }
 898
 899         for (i = 0; i < state->dual_mode + 1; i++) {
 900                 unsigned int eeprom_offset = 0;
 901
 902                 /* tuner */
 903                 tmp = state->eeprom[EEPROM_1_TUNER_ID + eeprom_offset];
 904                 dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 905
 906                 /* tuner sanity check */
 907                 if (state->chip_type == 0x9135) {
 908                         if (state->chip_version == 0x02) {
 909                                 /* IT9135 BX (v2) */
 910                                 switch (tmp) {
 911                                 case AF9033_TUNER_IT9135_60:
 912                                 case AF9033_TUNER_IT9135_61:
 913                                 case AF9033_TUNER_IT9135_62:
 914                                         state->af9033_config[i].tuner = tmp;
 915                                         break;
 916                                 }
 917                         } else {
 918                                 /* IT9135 AX (v1) */
 919                                 switch (tmp) {
 920                                 case AF9033_TUNER_IT9135_38:
 921                                 case AF9033_TUNER_IT9135_51:
 922                                 case AF9033_TUNER_IT9135_52:
 923                                         state->af9033_config[i].tuner = tmp;
 924                                         break;
 925                                 }
 926                         }
 927                 } else {
 928                         /* AF9035 */
 929                         state->af9033_config[i].tuner = tmp;
 930                 }
 931
 932                 if (state->af9033_config[i].tuner != tmp) {
 933                         dev_info(&intf->dev, "[%d] overriding tuner from %02x to %02x\n",
 934                                  i, tmp, state->af9033_config[i].tuner);
 935                 }
 936
 937                 switch (state->af9033_config[i].tuner) {
 938                 case AF9033_TUNER_TUA9001:
 939                 case AF9033_TUNER_FC0011:
 940                 case AF9033_TUNER_MXL5007T:
 941                 case AF9033_TUNER_TDA18218:
 942                 case AF9033_TUNER_FC2580:
 943                 case AF9033_TUNER_FC0012:
 944                         state->af9033_config[i].spec_inv = 1;
 945                         break;
 946                 case AF9033_TUNER_IT9135_38:
 947                 case AF9033_TUNER_IT9135_51:
 948                 case AF9033_TUNER_IT9135_52:
 949                 case AF9033_TUNER_IT9135_60:
 950                 case AF9033_TUNER_IT9135_61:
 951                 case AF9033_TUNER_IT9135_62:
 952                         break;
 953                 default:
 954                         dev_warn(&intf->dev, "tuner id=%02x not supported, please report!",
 955                                  tmp);
 956                 }
 957
 958                 /* disable dual mode if driver does not support it */
 959                 if (i == 1)
 960                         switch (state->af9033_config[i].tuner) {
 961                         case AF9033_TUNER_FC0012:
 962                         case AF9033_TUNER_IT9135_38:
 963                         case AF9033_TUNER_IT9135_51:
 964                         case AF9033_TUNER_IT9135_52:
 965                         case AF9033_TUNER_IT9135_60:
 966                         case AF9033_TUNER_IT9135_61:
 967                         case AF9033_TUNER_IT9135_62:
 968                         case AF9033_TUNER_MXL5007T:
 969                                 break;
 970                         default:
 971                                 state->dual_mode = false;
 972                                 dev_info(&intf->dev, "driver does not support 2nd tuner and will disable it");
 973                 }
 974
 975                 /* tuner IF frequency */
 976                 tmp = state->eeprom[EEPROM_1_IF_L + eeprom_offset];
 977                 tmp16 = tmp << 0;
 978                 tmp = state->eeprom[EEPROM_1_IF_H + eeprom_offset];
 979                 tmp16 |= tmp << 8;
 980                 dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 981
 982                 eeprom_offset += 0x10; /* shift for the 2nd tuner params */
 983         }
 984
 985 skip_eeprom:
 986         /* get demod clock */
 987         ret = af9035_rd_reg(d, 0x00d800, &tmp);
 988         if (ret < 0)
 989                 goto err;
 990
 991         tmp = (tmp >> 0) & 0x0f;
 992
 993         for (i = 0; i < ARRAY_SIZE(state->af9033_config); i++) {
 994                 if (state->chip_type == 0x9135)
 995                         state->af9033_config[i].clock = clock_lut_it9135[tmp];
 996                 else
 997                         state->af9033_config[i].clock = clock_lut_af9035[tmp];
 998         }
 999
1000         state->no_read = false;
1001         /* Some MXL5007T devices cannot properly handle tuner I2C read ops. */
1002         if (state->af9033_config[0].tuner == AF9033_TUNER_MXL5007T &&
1003                 le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA)
1004
1005                 switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
1006                 case USB_PID_AVERMEDIA_A867:
1007                 case USB_PID_AVERMEDIA_TWINSTAR:
1008                         dev_info(&intf->dev,
1009                                  "Device may have issues with I2C read operations. Enabling fix.\n");
1010                         state->no_read = true;
1011                         break;
1012                 }
1013
1014         return 0;
1015
1016 err:
1017         dev_dbg(&intf->dev, "failed=%d\n", ret);
1018
1019         return ret;
1020 }
1021
1022 static int af9035_tua9001_tuner_callback(struct dvb_usb_device *d,
1023                 int cmd, int arg)
1024 {
1025         struct usb_interface *intf = d->intf;
1026         int ret;
1027         u8 val;
1028
1029         dev_dbg(&intf->dev, "cmd=%d arg=%d\n", cmd, arg);
1030
1031         /*
1032          * CEN     always enabled by hardware wiring
1033          * RESETN  GPIOT3
1034          * RXEN    GPIOT2
1035          */
1036
1037         switch (cmd) {
1038         case TUA9001_CMD_RESETN:
1039                 if (arg)
1040                         val = 0x00;
1041                 else
1042                         val = 0x01;
1043
1044                 ret = af9035_wr_reg_mask(d, 0x00d8e7, val, 0x01);
1045                 if (ret < 0)
1046                         goto err;
1047                 break;
1048         case TUA9001_CMD_RXEN:
1049                 if (arg)
1050                         val = 0x01;
1051                 else
1052                         val = 0x00;
1053
1054                 ret = af9035_wr_reg_mask(d, 0x00d8eb, val, 0x01);
1055                 if (ret < 0)
1056                         goto err;
1057                 break;
1058         }
1059
1060         return 0;
1061
1062 err:
1063         dev_dbg(&intf->dev, "failed=%d\n", ret);
1064
1065         return ret;
1066 }
1067
1068
1069 static int af9035_fc0011_tuner_callback(struct dvb_usb_device *d,
1070                 int cmd, int arg)
1071 {
1072         struct usb_interface *intf = d->intf;
1073         int ret;
1074
1075         switch (cmd) {
1076         case FC0011_FE_CALLBACK_POWER:
1077                 /* Tuner enable */
1078                 ret = af9035_wr_reg_mask(d, 0xd8eb, 1, 1);
1079                 if (ret < 0)
1080                         goto err;
1081
1082                 ret = af9035_wr_reg_mask(d, 0xd8ec, 1, 1);
1083                 if (ret < 0)
1084                         goto err;
1085
1086                 ret = af9035_wr_reg_mask(d, 0xd8ed, 1, 1);
1087                 if (ret < 0)
1088                         goto err;
1089
1090                 /* LED */
1091                 ret = af9035_wr_reg_mask(d, 0xd8d0, 1, 1);
1092                 if (ret < 0)
1093                         goto err;
1094
1095                 ret = af9035_wr_reg_mask(d, 0xd8d1, 1, 1);
1096                 if (ret < 0)
1097                         goto err;
1098
1099                 usleep_range(10000, 50000);
1100                 break;
1101         case FC0011_FE_CALLBACK_RESET:
1102                 ret = af9035_wr_reg(d, 0xd8e9, 1);
1103                 if (ret < 0)
1104                         goto err;
1105
1106                 ret = af9035_wr_reg(d, 0xd8e8, 1);
1107                 if (ret < 0)
1108                         goto err;
1109
1110                 ret = af9035_wr_reg(d, 0xd8e7, 1);
1111                 if (ret < 0)
1112                         goto err;
1113
1114                 usleep_range(10000, 20000);
1115
1116                 ret = af9035_wr_reg(d, 0xd8e7, 0);
1117                 if (ret < 0)
1118                         goto err;
1119
1120                 usleep_range(10000, 20000);
1121                 break;
1122         default:
1123                 ret = -EINVAL;
1124                 goto err;
1125         }
1126
1127         return 0;
1128
1129 err:
1130         dev_dbg(&intf->dev, "failed=%d\n", ret);
1131
1132         return ret;
1133 }
1134
1135 static int af9035_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
1136 {
1137         struct state *state = d_to_priv(d);
1138
1139         switch (state->af9033_config[0].tuner) {
1140         case AF9033_TUNER_FC0011:
1141                 return af9035_fc0011_tuner_callback(d, cmd, arg);
1142         case AF9033_TUNER_TUA9001:
1143                 return af9035_tua9001_tuner_callback(d, cmd, arg);
1144         default:
1145                 break;
1146         }
1147
1148         return 0;
1149 }
1150
1151 static int af9035_frontend_callback(void *adapter_priv, int component,
1152                                     int cmd, int arg)
1153 {
1154         struct i2c_adapter *adap = adapter_priv;
1155         struct dvb_usb_device *d = i2c_get_adapdata(adap);
1156         struct usb_interface *intf = d->intf;
1157
1158         dev_dbg(&intf->dev, "component=%d cmd=%d arg=%d\n",
1159                 component, cmd, arg);
1160
1161         switch (component) {
1162         case DVB_FRONTEND_COMPONENT_TUNER:
1163                 return af9035_tuner_callback(d, cmd, arg);
1164         default:
1165                 break;
1166         }
1167
1168         return 0;
1169 }
1170
1171 static int af9035_get_adapter_count(struct dvb_usb_device *d)
1172 {
1173         struct state *state = d_to_priv(d);
1174
1175         return state->dual_mode + 1;
1176 }
1177
1178 static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
1179 {
1180         struct state *state = adap_to_priv(adap);
1181         struct dvb_usb_device *d = adap_to_d(adap);
1182         struct usb_interface *intf = d->intf;
1183         int ret;
1184
1185         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1186
1187         if (!state->af9033_config[adap->id].tuner) {
1188                 /* unsupported tuner */
1189                 ret = -ENODEV;
1190                 goto err;
1191         }
1192
1193         state->af9033_config[adap->id].fe = &adap->fe[0];
1194         state->af9033_config[adap->id].ops = &state->ops;
1195         ret = af9035_add_i2c_dev(d, "af9033", state->af9033_i2c_addr[adap->id],
1196                         &state->af9033_config[adap->id], &d->i2c_adap);
1197         if (ret)
1198                 goto err;
1199
1200         if (adap->fe[0] == NULL) {
1201                 ret = -ENODEV;
1202                 goto err;
1203         }
1204
1205         /* disable I2C-gate */
1206         adap->fe[0]->ops.i2c_gate_ctrl = NULL;
1207         adap->fe[0]->callback = af9035_frontend_callback;
1208
1209         return 0;
1210
1211 err:
1212         dev_dbg(&intf->dev, "failed=%d\n", ret);
1213
1214         return ret;
1215 }
1216
1217 static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
1218 {
1219         struct state *state = adap_to_priv(adap);
1220         struct dvb_usb_device *d = adap_to_d(adap);
1221         struct usb_interface *intf = d->intf;
1222         int ret;
1223         struct si2168_config si2168_config;
1224         struct i2c_adapter *adapter;
1225
1226         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1227
1228         memset(&si2168_config, 0, sizeof(si2168_config));
1229         si2168_config.i2c_adapter = &adapter;
1230         si2168_config.fe = &adap->fe[0];
1231         si2168_config.ts_mode = SI2168_TS_SERIAL;
1232
1233         state->af9033_config[adap->id].fe = &adap->fe[0];
1234         state->af9033_config[adap->id].ops = &state->ops;
1235         ret = af9035_add_i2c_dev(d, "si2168", 0x67, &si2168_config,
1236                                 &d->i2c_adap);
1237         if (ret)
1238                 goto err;
1239
1240         if (adap->fe[0] == NULL) {
1241                 ret = -ENODEV;
1242                 goto err;
1243         }
1244         state->i2c_adapter_demod = adapter;
1245
1246         return 0;
1247
1248 err:
1249         dev_dbg(&intf->dev, "failed=%d\n", ret);
1250
1251         return ret;
1252 }
1253
1254 static int af9035_frontend_detach(struct dvb_usb_adapter *adap)
1255 {
1256         struct state *state = adap_to_priv(adap);
1257         struct dvb_usb_device *d = adap_to_d(adap);
1258         struct usb_interface *intf = d->intf;
1259
1260         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1261
1262         if (adap->id == 1) {
1263                 if (state->i2c_client[1])
1264                         af9035_del_i2c_dev(d);
1265         } else if (adap->id == 0) {
1266                 if (state->i2c_client[0])
1267                         af9035_del_i2c_dev(d);
1268         }
1269
1270         return 0;
1271 }
1272
1273 static const struct fc0011_config af9035_fc0011_config = {
1274         .i2c_address = 0x60,
1275 };
1276
1277 static struct mxl5007t_config af9035_mxl5007t_config[] = {
1278         {
1279                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1280                 .if_freq_hz = MxL_IF_4_57_MHZ,
1281                 .invert_if = 0,
1282                 .loop_thru_enable = 0,
1283                 .clk_out_enable = 0,
1284                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1285         }, {
1286                 .xtal_freq_hz = MxL_XTAL_24_MHZ,
1287                 .if_freq_hz = MxL_IF_4_57_MHZ,
1288                 .invert_if = 0,
1289                 .loop_thru_enable = 1,
1290                 .clk_out_enable = 1,
1291                 .clk_out_amp = MxL_CLKOUT_AMP_0_94V,
1292         }
1293 };
1294
1295 static struct tda18218_config af9035_tda18218_config = {
1296         .i2c_address = 0x60,
1297         .i2c_wr_max = 21,
1298 };
1299
1300 static const struct fc0012_config af9035_fc0012_config[] = {
1301         {
1302                 .i2c_address = 0x63,
1303                 .xtal_freq = FC_XTAL_36_MHZ,
1304                 .dual_master = true,
1305                 .loop_through = true,
1306                 .clock_out = true,
1307         }, {
1308                 .i2c_address = 0x63 | 0x80, /* I2C bus select hack */
1309                 .xtal_freq = FC_XTAL_36_MHZ,
1310                 .dual_master = true,
1311         }
1312 };
1313
1314 static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
1315 {
1316         struct state *state = adap_to_priv(adap);
1317         struct dvb_usb_device *d = adap_to_d(adap);
1318         struct usb_interface *intf = d->intf;
1319         int ret;
1320         struct dvb_frontend *fe;
1321         struct i2c_msg msg[1];
1322         u8 tuner_addr;
1323
1324         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1325
1326         /*
1327          * XXX: Hack used in that function: we abuse unused I2C address bit [7]
1328          * to carry info about used I2C bus for dual tuner configuration.
1329          */
1330
1331         switch (state->af9033_config[adap->id].tuner) {
1332         case AF9033_TUNER_TUA9001: {
1333                 struct tua9001_platform_data tua9001_pdata = {
1334                         .dvb_frontend = adap->fe[0],
1335                 };
1336
1337                 /*
1338                  * AF9035 gpiot3 = TUA9001 RESETN
1339                  * AF9035 gpiot2 = TUA9001 RXEN
1340                  */
1341
1342                 /* configure gpiot2 and gpiot2 as output */
1343                 ret = af9035_wr_reg_mask(d, 0x00d8ec, 0x01, 0x01);
1344                 if (ret < 0)
1345                         goto err;
1346
1347                 ret = af9035_wr_reg_mask(d, 0x00d8ed, 0x01, 0x01);
1348                 if (ret < 0)
1349                         goto err;
1350
1351                 ret = af9035_wr_reg_mask(d, 0x00d8e8, 0x01, 0x01);
1352                 if (ret < 0)
1353                         goto err;
1354
1355                 ret = af9035_wr_reg_mask(d, 0x00d8e9, 0x01, 0x01);
1356                 if (ret < 0)
1357                         goto err;
1358
1359                 /* attach tuner */
1360                 ret = af9035_add_i2c_dev(d, "tua9001", 0x60, &tua9001_pdata,
1361                                          &d->i2c_adap);
1362                 if (ret)
1363                         goto err;
1364
1365                 fe = adap->fe[0];
1366                 break;
1367         }
1368         case AF9033_TUNER_FC0011:
1369                 fe = dvb_attach(fc0011_attach, adap->fe[0],
1370                                 &d->i2c_adap, &af9035_fc0011_config);
1371                 break;
1372         case AF9033_TUNER_MXL5007T:
1373                 if (adap->id == 0) {
1374                         ret = af9035_wr_reg(d, 0x00d8e0, 1);
1375                         if (ret < 0)
1376                                 goto err;
1377
1378                         ret = af9035_wr_reg(d, 0x00d8e1, 1);
1379                         if (ret < 0)
1380                                 goto err;
1381
1382                         ret = af9035_wr_reg(d, 0x00d8df, 0);
1383                         if (ret < 0)
1384                                 goto err;
1385
1386                         msleep(30);
1387
1388                         ret = af9035_wr_reg(d, 0x00d8df, 1);
1389                         if (ret < 0)
1390                                 goto err;
1391
1392                         msleep(300);
1393
1394                         ret = af9035_wr_reg(d, 0x00d8c0, 1);
1395                         if (ret < 0)
1396                                 goto err;
1397
1398                         ret = af9035_wr_reg(d, 0x00d8c1, 1);
1399                         if (ret < 0)
1400                                 goto err;
1401
1402                         ret = af9035_wr_reg(d, 0x00d8bf, 0);
1403                         if (ret < 0)
1404                                 goto err;
1405
1406                         ret = af9035_wr_reg(d, 0x00d8b4, 1);
1407                         if (ret < 0)
1408                                 goto err;
1409
1410                         ret = af9035_wr_reg(d, 0x00d8b5, 1);
1411                         if (ret < 0)
1412                                 goto err;
1413
1414                         ret = af9035_wr_reg(d, 0x00d8b3, 1);
1415                         if (ret < 0)
1416                                 goto err;
1417
1418                         tuner_addr = 0x60;
1419                 } else {
1420                         tuner_addr = 0x60 | 0x80; /* I2C bus hack */
1421                 }
1422
1423                 /* attach tuner */
1424                 fe = dvb_attach(mxl5007t_attach, adap->fe[0], &d->i2c_adap,
1425                                 tuner_addr, &af9035_mxl5007t_config[adap->id]);
1426                 break;
1427         case AF9033_TUNER_TDA18218:
1428                 /* attach tuner */
1429                 fe = dvb_attach(tda18218_attach, adap->fe[0],
1430                                 &d->i2c_adap, &af9035_tda18218_config);
1431                 break;
1432         case AF9033_TUNER_FC2580: {
1433                 struct fc2580_platform_data fc2580_pdata = {
1434                         .dvb_frontend = adap->fe[0],
1435                 };
1436
1437                 /* Tuner enable using gpiot2_o, gpiot2_en and gpiot2_on  */
1438                 ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1439                 if (ret < 0)
1440                         goto err;
1441
1442                 ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1443                 if (ret < 0)
1444                         goto err;
1445
1446                 ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1447                 if (ret < 0)
1448                         goto err;
1449
1450                 usleep_range(10000, 50000);
1451                 /* attach tuner */
1452                 ret = af9035_add_i2c_dev(d, "fc2580", 0x56, &fc2580_pdata,
1453                                          &d->i2c_adap);
1454                 if (ret)
1455                         goto err;
1456
1457                 fe = adap->fe[0];
1458                 break;
1459         }
1460         case AF9033_TUNER_FC0012:
1461                 /*
1462                  * AF9035 gpiot2 = FC0012 enable
1463                  * XXX: there seems to be something on gpioh8 too, but on my
1464                  * my test I didn't find any difference.
1465                  */
1466
1467                 if (adap->id == 0) {
1468                         /* configure gpiot2 as output and high */
1469                         ret = af9035_wr_reg_mask(d, 0xd8eb, 0x01, 0x01);
1470                         if (ret < 0)
1471                                 goto err;
1472
1473                         ret = af9035_wr_reg_mask(d, 0xd8ec, 0x01, 0x01);
1474                         if (ret < 0)
1475                                 goto err;
1476
1477                         ret = af9035_wr_reg_mask(d, 0xd8ed, 0x01, 0x01);
1478                         if (ret < 0)
1479                                 goto err;
1480                 } else {
1481                         /*
1482                          * FIXME: That belongs for the FC0012 driver.
1483                          * Write 02 to FC0012 master tuner register 0d directly
1484                          * in order to make slave tuner working.
1485                          */
1486                         msg[0].addr = 0x63;
1487                         msg[0].flags = 0;
1488                         msg[0].len = 2;
1489                         msg[0].buf = "\x0d\x02";
1490                         ret = i2c_transfer(&d->i2c_adap, msg, 1);
1491                         if (ret < 0)
1492                                 goto err;
1493                 }
1494
1495                 usleep_range(10000, 50000);
1496
1497                 fe = dvb_attach(fc0012_attach, adap->fe[0], &d->i2c_adap,
1498                                 &af9035_fc0012_config[adap->id]);
1499                 break;
1500         case AF9033_TUNER_IT9135_38:
1501         case AF9033_TUNER_IT9135_51:
1502         case AF9033_TUNER_IT9135_52:
1503         case AF9033_TUNER_IT9135_60:
1504         case AF9033_TUNER_IT9135_61:
1505         case AF9033_TUNER_IT9135_62:
1506         {
1507                 struct platform_device *pdev;
1508                 const char *name;
1509                 struct it913x_platform_data it913x_pdata = {
1510                         .regmap = state->af9033_config[adap->id].regmap,
1511                         .fe = adap->fe[0],
1512                 };
1513
1514                 switch (state->af9033_config[adap->id].tuner) {
1515                 case AF9033_TUNER_IT9135_38:
1516                 case AF9033_TUNER_IT9135_51:
1517                 case AF9033_TUNER_IT9135_52:
1518                         name = "it9133ax-tuner";
1519                         break;
1520                 case AF9033_TUNER_IT9135_60:
1521                 case AF9033_TUNER_IT9135_61:
1522                 case AF9033_TUNER_IT9135_62:
1523                         name = "it9133bx-tuner";
1524                         break;
1525                 default:
1526                         ret = -ENODEV;
1527                         goto err;
1528                 }
1529
1530                 if (state->dual_mode) {
1531                         if (adap->id == 0)
1532                                 it913x_pdata.role = IT913X_ROLE_DUAL_MASTER;
1533                         else
1534                                 it913x_pdata.role = IT913X_ROLE_DUAL_SLAVE;
1535                 } else {
1536                         it913x_pdata.role = IT913X_ROLE_SINGLE;
1537                 }
1538
1539                 request_module("%s", "it913x");
1540                 pdev = platform_device_register_data(&d->intf->dev, name,
1541                                                      PLATFORM_DEVID_AUTO,
1542                                                      &it913x_pdata,
1543                                                      sizeof(it913x_pdata));
1544                 if (IS_ERR(pdev) || !pdev->dev.driver) {
1545                         ret = -ENODEV;
1546                         goto err;
1547                 }
1548                 if (!try_module_get(pdev->dev.driver->owner)) {
1549                         platform_device_unregister(pdev);
1550                         ret = -ENODEV;
1551                         goto err;
1552                 }
1553
1554                 state->platform_device_tuner[adap->id] = pdev;
1555                 fe = adap->fe[0];
1556                 break;
1557         }
1558         default:
1559                 fe = NULL;
1560         }
1561
1562         if (fe == NULL) {
1563                 ret = -ENODEV;
1564                 goto err;
1565         }
1566
1567         return 0;
1568
1569 err:
1570         dev_dbg(&intf->dev, "failed=%d\n", ret);
1571
1572         return ret;
1573 }
1574
1575 static int it930x_tuner_attach(struct dvb_usb_adapter *adap)
1576 {
1577         struct state *state = adap_to_priv(adap);
1578         struct dvb_usb_device *d = adap_to_d(adap);
1579         struct usb_interface *intf = d->intf;
1580         int ret;
1581         struct si2157_config si2157_config;
1582
1583         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1584
1585         /* I2C master bus 2 clock speed 300k */
1586         ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
1587         if (ret < 0)
1588                 goto err;
1589
1590         /* I2C master bus 1,3 clock speed 300k */
1591         ret = af9035_wr_reg(d, 0x00f103, 0x07);
1592         if (ret < 0)
1593                 goto err;
1594
1595         /* set gpio11 low */
1596         ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01);
1597         if (ret < 0)
1598                 goto err;
1599
1600         ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01);
1601         if (ret < 0)
1602                 goto err;
1603
1604         ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01);
1605         if (ret < 0)
1606                 goto err;
1607
1608         /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */
1609         ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01);
1610         if (ret < 0)
1611                 goto err;
1612
1613         ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01);
1614         if (ret < 0)
1615                 goto err;
1616
1617         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01);
1618         if (ret < 0)
1619                 goto err;
1620
1621         msleep(200);
1622
1623         ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01);
1624         if (ret < 0)
1625                 goto err;
1626
1627         memset(&si2157_config, 0, sizeof(si2157_config));
1628         si2157_config.fe = adap->fe[0];
1629         si2157_config.if_port = 1;
1630         ret = af9035_add_i2c_dev(d, "si2157", 0x63,
1631                         &si2157_config, state->i2c_adapter_demod);
1632
1633         if (ret)
1634                 goto err;
1635
1636         return 0;
1637
1638 err:
1639         dev_dbg(&intf->dev, "failed=%d\n", ret);
1640
1641         return ret;
1642 }
1643
1644
1645 static int it930x_tuner_detach(struct dvb_usb_adapter *adap)
1646 {
1647         struct state *state = adap_to_priv(adap);
1648         struct dvb_usb_device *d = adap_to_d(adap);
1649         struct usb_interface *intf = d->intf;
1650
1651         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1652
1653         if (adap->id == 1) {
1654                 if (state->i2c_client[3])
1655                         af9035_del_i2c_dev(d);
1656         } else if (adap->id == 0) {
1657                 if (state->i2c_client[1])
1658                         af9035_del_i2c_dev(d);
1659         }
1660
1661         return 0;
1662 }
1663
1664
1665 static int af9035_tuner_detach(struct dvb_usb_adapter *adap)
1666 {
1667         struct state *state = adap_to_priv(adap);
1668         struct dvb_usb_device *d = adap_to_d(adap);
1669         struct usb_interface *intf = d->intf;
1670
1671         dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);
1672
1673         switch (state->af9033_config[adap->id].tuner) {
1674         case AF9033_TUNER_TUA9001:
1675         case AF9033_TUNER_FC2580:
1676                 if (adap->id == 1) {
1677                         if (state->i2c_client[3])
1678                                 af9035_del_i2c_dev(d);
1679                 } else if (adap->id == 0) {
1680                         if (state->i2c_client[1])
1681                                 af9035_del_i2c_dev(d);
1682                 }
1683                 break;
1684         case AF9033_TUNER_IT9135_38:
1685         case AF9033_TUNER_IT9135_51:
1686         case AF9033_TUNER_IT9135_52:
1687         case AF9033_TUNER_IT9135_60:
1688         case AF9033_TUNER_IT9135_61:
1689         case AF9033_TUNER_IT9135_62:
1690         {
1691                 struct platform_device *pdev;
1692
1693                 pdev = state->platform_device_tuner[adap->id];
1694                 if (pdev) {
1695                         module_put(pdev->dev.driver->owner);
1696                         platform_device_unregister(pdev);
1697                 }
1698                 break;
1699         }
1700         }
1701
1702         return 0;
1703 }
1704
1705 static int af9035_init(struct dvb_usb_device *d)
1706 {
1707         struct state *state = d_to_priv(d);
1708         struct usb_interface *intf = d->intf;
1709         int ret, i;
1710         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 87) * 188 / 4;
1711         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1712         struct reg_val_mask tab[] = {
1713                 { 0x80f99d, 0x01, 0x01 },
1714                 { 0x80f9a4, 0x01, 0x01 },
1715                 { 0x00dd11, 0x00, 0x20 },
1716                 { 0x00dd11, 0x00, 0x40 },
1717                 { 0x00dd13, 0x00, 0x20 },
1718                 { 0x00dd13, 0x00, 0x40 },
1719                 { 0x00dd11, 0x20, 0x20 },
1720                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1721                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1722                 { 0x00dd0c, packet_size, 0xff},
1723                 { 0x00dd11, state->dual_mode << 6, 0x40 },
1724                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1725                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1726                 { 0x00dd0d, packet_size, 0xff },
1727                 { 0x80f9a3, state->dual_mode, 0x01 },
1728                 { 0x80f9cd, state->dual_mode, 0x01 },
1729                 { 0x80f99d, 0x00, 0x01 },
1730                 { 0x80f9a4, 0x00, 0x01 },
1731         };
1732
1733         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1734                 d->udev->speed, frame_size, packet_size);
1735
1736         /* init endpoints */
1737         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1738                 ret = af9035_wr_reg_mask(d, tab[i].reg, tab[i].val,
1739                                 tab[i].mask);
1740                 if (ret < 0)
1741                         goto err;
1742         }
1743
1744         return 0;
1745
1746 err:
1747         dev_dbg(&intf->dev, "failed=%d\n", ret);
1748
1749         return ret;
1750 }
1751
1752 static int it930x_init(struct dvb_usb_device *d)
1753 {
1754         struct state *state = d_to_priv(d);
1755         struct usb_interface *intf = d->intf;
1756         int ret, i;
1757         u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4;
1758         u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4;
1759         struct reg_val_mask tab[] = {
1760                 { 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */
1761                 { 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */
1762                 { 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */
1763                 { 0x00f41a, 0x01, 0x01 }, /* dvbt_en */
1764                 { 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */
1765                 { 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */
1766                 { 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */
1767                 { 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */
1768                 { 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */
1769                 { 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */
1770                 { 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */
1771                 { 0x00dd88, (frame_size >> 0) & 0xff, 0xff},
1772                 { 0x00dd89, (frame_size >> 8) & 0xff, 0xff},
1773                 { 0x00dd0c, packet_size, 0xff},
1774                 { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff},
1775                 { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff},
1776                 { 0x00dd0d, packet_size, 0xff },
1777                 { 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */
1778                 { 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */
1779                 { 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */
1780                 { 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */
1781                 { 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */
1782
1783                 /* suspend gpio1 for TS-C */
1784                 { 0x00d8b0, 0x01, 0xff }, /* gpio1 */
1785                 { 0x00d8b1, 0x01, 0xff }, /* gpio1 */
1786                 { 0x00d8af, 0x00, 0xff }, /* gpio1 */
1787
1788                 /* suspend gpio7 for TS-D */
1789                 { 0x00d8c4, 0x01, 0xff }, /* gpio7 */
1790                 { 0x00d8c5, 0x01, 0xff }, /* gpio7 */
1791                 { 0x00d8c3, 0x00, 0xff }, /* gpio7 */
1792
1793                 /* suspend gpio13 for TS-B */
1794                 { 0x00d8dc, 0x01, 0xff }, /* gpio13 */
1795                 { 0x00d8dd, 0x01, 0xff }, /* gpio13 */
1796                 { 0x00d8db, 0x00, 0xff }, /* gpio13 */
1797
1798                 /* suspend gpio14 for TS-E */
1799                 { 0x00d8e4, 0x01, 0xff }, /* gpio14 */
1800                 { 0x00d8e5, 0x01, 0xff }, /* gpio14 */
1801                 { 0x00d8e3, 0x00, 0xff }, /* gpio14 */
1802
1803                 /* suspend gpio15 for TS-A */
1804                 { 0x00d8e8, 0x01, 0xff }, /* gpio15 */
1805                 { 0x00d8e9, 0x01, 0xff }, /* gpio15 */
1806                 { 0x00d8e7, 0x00, 0xff }, /* gpio15 */
1807
1808                 { 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */
1809                 { 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */
1810                 { 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */
1811                 { 0x00da4c, 0x01, 0xff }, /* ts0_en */
1812                 { 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */
1813         };
1814
1815         dev_dbg(&intf->dev, "USB speed=%d frame_size=%04x packet_size=%02x\n",
1816                 d->udev->speed, frame_size, packet_size);
1817
1818         /* init endpoints */
1819         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1820                 ret = af9035_wr_reg_mask(d, tab[i].reg,
1821                                 tab[i].val, tab[i].mask);
1822
1823                 if (ret < 0)
1824                         goto err;
1825         }
1826
1827         return 0;
1828 err:
1829         dev_dbg(&intf->dev, "failed=%d\n", ret);
1830
1831         return ret;
1832 }
1833
1834
1835 #if IS_ENABLED(CONFIG_RC_CORE)
1836 static int af9035_rc_query(struct dvb_usb_device *d)
1837 {
1838         struct usb_interface *intf = d->intf;
1839         int ret;
1840         enum rc_proto proto;
1841         u32 key;
1842         u8 buf[4];
1843         struct usb_req req = { CMD_IR_GET, 0, 0, NULL, 4, buf };
1844
1845         ret = af9035_ctrl_msg(d, &req);
1846         if (ret == 1)
1847                 return 0;
1848         else if (ret < 0)
1849                 goto err;
1850
1851         if ((buf[2] + buf[3]) == 0xff) {
1852                 if ((buf[0] + buf[1]) == 0xff) {
1853                         /* NEC standard 16bit */
1854                         key = RC_SCANCODE_NEC(buf[0], buf[2]);
1855                         proto = RC_PROTO_NEC;
1856                 } else {
1857                         /* NEC extended 24bit */
1858                         key = RC_SCANCODE_NECX(buf[0] << 8 | buf[1], buf[2]);
1859                         proto = RC_PROTO_NECX;
1860                 }
1861         } else {
1862                 /* NEC full code 32bit */
1863                 key = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1864                                         buf[2] << 8  | buf[3]);
1865                 proto = RC_PROTO_NEC32;
1866         }
1867
1868         dev_dbg(&intf->dev, "%*ph\n", 4, buf);
1869
1870         rc_keydown(d->rc_dev, proto, key, 0);
1871
1872         return 0;
1873
1874 err:
1875         dev_dbg(&intf->dev, "failed=%d\n", ret);
1876
1877         return ret;
1878 }
1879
1880 static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
1881 {
1882         struct state *state = d_to_priv(d);
1883         struct usb_interface *intf = d->intf;
1884
1885         dev_dbg(&intf->dev, "ir_mode=%02x ir_type=%02x\n",
1886                 state->ir_mode, state->ir_type);
1887
1888         /* don't activate rc if in HID mode or if not available */
1889         if (state->ir_mode == 0x05) {
1890                 switch (state->ir_type) {
1891                 case 0: /* NEC */
1892                 default:
1893                         rc->allowed_protos = RC_PROTO_BIT_NEC |
1894                                         RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32;
1895                         break;
1896                 case 1: /* RC6 */
1897                         rc->allowed_protos = RC_PROTO_BIT_RC6_MCE;
1898                         break;
1899                 }
1900
1901                 rc->query = af9035_rc_query;
1902                 rc->interval = 500;
1903
1904                 /* load empty to enable rc */
1905                 if (!rc->map_name)
1906                         rc->map_name = RC_MAP_EMPTY;
1907         }
1908
1909         return 0;
1910 }
1911 #else
1912         #define af9035_get_rc_config NULL
1913 #endif
1914
1915 static int af9035_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1916                 struct usb_data_stream_properties *stream)
1917 {
1918         struct dvb_usb_device *d = fe_to_d(fe);
1919         struct usb_interface *intf = d->intf;
1920
1921         dev_dbg(&intf->dev, "adap=%d\n", fe_to_adap(fe)->id);
1922
1923         if (d->udev->speed == USB_SPEED_FULL)
1924                 stream->u.bulk.buffersize = 5 * 188;
1925
1926         return 0;
1927 }
1928
1929 static int af9035_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1930 {
1931         struct state *state = adap_to_priv(adap);
1932
1933         return state->ops.pid_filter_ctrl(adap->fe[0], onoff);
1934 }
1935
1936 static int af9035_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
1937                 int onoff)
1938 {
1939         struct state *state = adap_to_priv(adap);
1940
1941         return state->ops.pid_filter(adap->fe[0], index, pid, onoff);
1942 }
1943
1944 static int af9035_probe(struct usb_interface *intf,
1945                 const struct usb_device_id *id)
1946 {
1947         struct usb_device *udev = interface_to_usbdev(intf);
1948         char manufacturer[sizeof("Afatech")];
1949
1950         memset(manufacturer, 0, sizeof(manufacturer));
1951         usb_string(udev, udev->descriptor.iManufacturer,
1952                         manufacturer, sizeof(manufacturer));
1953         /*
1954          * There is two devices having same ID but different chipset. One uses
1955          * AF9015 and the other IT9135 chipset. Only difference seen on lsusb
1956          * is iManufacturer string.
1957          *
1958          * idVendor           0x0ccd TerraTec Electronic GmbH
1959          * idProduct          0x0099
1960          * bcdDevice            2.00
1961          * iManufacturer           1 Afatech
1962          * iProduct                2 DVB-T 2
1963          *
1964          * idVendor           0x0ccd TerraTec Electronic GmbH
1965          * idProduct          0x0099
1966          * bcdDevice            2.00
1967          * iManufacturer           1 ITE Technologies, Inc.
1968          * iProduct                2 DVB-T TV Stick
1969          */
1970         if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VID_TERRATEC) &&
1971                         (le16_to_cpu(udev->descriptor.idProduct) == 0x0099)) {
1972                 if (!strcmp("Afatech", manufacturer)) {
1973                         dev_dbg(&udev->dev, "rejecting device\n");
1974                         return -ENODEV;
1975                 }
1976         }
1977
1978         return dvb_usbv2_probe(intf, id);
1979 }
1980
1981 /* interface 0 is used by DVB-T receiver and
1982    interface 1 is for remote controller (HID) */
1983 static const struct dvb_usb_device_properties af9035_props = {
1984         .driver_name = KBUILD_MODNAME,
1985         .owner = THIS_MODULE,
1986         .adapter_nr = adapter_nr,
1987         .size_of_priv = sizeof(struct state),
1988
1989         .generic_bulk_ctrl_endpoint = 0x02,
1990         .generic_bulk_ctrl_endpoint_response = 0x81,
1991
1992         .identify_state = af9035_identify_state,
1993         .download_firmware = af9035_download_firmware,
1994
1995         .i2c_algo = &af9035_i2c_algo,
1996         .read_config = af9035_read_config,
1997         .frontend_attach = af9035_frontend_attach,
1998         .frontend_detach = af9035_frontend_detach,
1999         .tuner_attach = af9035_tuner_attach,
2000         .tuner_detach = af9035_tuner_detach,
2001         .init = af9035_init,
2002         .get_rc_config = af9035_get_rc_config,
2003         .get_stream_config = af9035_get_stream_config,
2004
2005         .get_adapter_count = af9035_get_adapter_count,
2006         .adapter = {
2007                 {
2008                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2009                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2010
2011                         .pid_filter_count = 32,
2012                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2013                         .pid_filter = af9035_pid_filter,
2014
2015                         .stream = DVB_USB_STREAM_BULK(0x84, 6, 87 * 188),
2016                 }, {
2017                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
2018                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
2019
2020                         .pid_filter_count = 32,
2021                         .pid_filter_ctrl = af9035_pid_filter_ctrl,
2022                         .pid_filter = af9035_pid_filter,
2023
2024                         .stream = DVB_USB_STREAM_BULK(0x85, 6, 87 * 188),
2025                 },
2026         },
2027 };
2028
2029 static const struct dvb_usb_device_properties it930x_props = {
2030         .driver_name = KBUILD_MODNAME,
2031         .owner = THIS_MODULE,
2032         .adapter_nr = adapter_nr,
2033         .size_of_priv = sizeof(struct state),
2034
2035         .generic_bulk_ctrl_endpoint = 0x02,
2036         .generic_bulk_ctrl_endpoint_response = 0x81,
2037
2038         .identify_state = af9035_identify_state,
2039         .download_firmware = af9035_download_firmware,
2040
2041         .i2c_algo = &af9035_i2c_algo,
2042         .read_config = af9035_read_config,
2043         .frontend_attach = it930x_frontend_attach,
2044         .frontend_detach = af9035_frontend_detach,
2045         .tuner_attach = it930x_tuner_attach,
2046         .tuner_detach = it930x_tuner_detach,
2047         .init = it930x_init,
2048         .get_stream_config = af9035_get_stream_config,
2049
2050         .get_adapter_count = af9035_get_adapter_count,
2051         .adapter = {
2052                 {
2053                         .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188),
2054                 }, {
2055                         .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188),
2056                 },
2057         },
2058 };
2059
2060 static const struct usb_device_id af9035_id_table[] = {
2061         /* AF9035 devices */
2062         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035,
2063                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2064         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1000,
2065                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2066         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1001,
2067                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2068         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1002,
2069                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2070         { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_1003,
2071                 &af9035_props, "Afatech AF9035 reference design", NULL) },
2072         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK,
2073                 &af9035_props, "TerraTec Cinergy T Stick", NULL) },
2074         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835,
2075                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2076         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_B835,
2077                 &af9035_props, "AVerMedia AVerTV Volar HD/PRO (A835)", NULL) },
2078         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_1867,
2079                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2080         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A867,
2081                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2082         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TWINSTAR,
2083                 &af9035_props, "AVerMedia Twinstar (A825)", NULL) },
2084         { DVB_USB_DEVICE(USB_VID_ASUS, USB_PID_ASUS_U3100MINI_PLUS,
2085                 &af9035_props, "Asus U3100Mini Plus", NULL) },
2086         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00aa,
2087                 &af9035_props, "TerraTec Cinergy T Stick (rev. 2)", NULL) },
2088         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, 0x0337,
2089                 &af9035_props, "AVerMedia HD Volar (A867)", NULL) },
2090        { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_EVOLVEO_XTRATV_STICK,
2091                &af9035_props, "EVOLVEO XtraTV stick", NULL) },
2092
2093         /* IT9135 devices */
2094         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135,
2095                 &af9035_props, "ITE 9135 Generic", RC_MAP_IT913X_V1) },
2096         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005,
2097                 &af9035_props, "ITE 9135(9005) Generic", RC_MAP_IT913X_V2) },
2098         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006,
2099                 &af9035_props, "ITE 9135(9006) Generic", RC_MAP_IT913X_V1) },
2100         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_1835,
2101                 &af9035_props, "Avermedia A835B(1835)", RC_MAP_IT913X_V2) },
2102         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_2835,
2103                 &af9035_props, "Avermedia A835B(2835)", RC_MAP_IT913X_V2) },
2104         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_3835,
2105                 &af9035_props, "Avermedia A835B(3835)", RC_MAP_IT913X_V2) },
2106         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A835B_4835,
2107                 &af9035_props, "Avermedia A835B(4835)", RC_MAP_IT913X_V2) },
2108         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_TD110,
2109                 &af9035_props, "Avermedia AverTV Volar HD 2 (TD110)", RC_MAP_AVERMEDIA_RM_KS) },
2110         { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
2111                 &af9035_props, "Avermedia H335", RC_MAP_IT913X_V2) },
2112         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09,
2113                 &af9035_props, "Kworld UB499-2T T09", RC_MAP_IT913X_V1) },
2114         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137,
2115                 &af9035_props, "Sveon STV22 Dual DVB-T HDTV",
2116                                                         RC_MAP_IT913X_V1) },
2117         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
2118                 &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2",
2119                                                         RC_MAP_IT913X_V1) },
2120         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_T1,
2121                 &af9035_props, "TerraTec T1", RC_MAP_IT913X_V1) },
2122         /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */
2123         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099,
2124                 &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)",
2125                 NULL) },
2126         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a05,
2127                 &af9035_props, "Leadtek WinFast DTV Dongle Dual", NULL) },
2128         { DVB_USB_DEVICE(USB_VID_HAUPPAUGE, 0xf900,
2129                 &af9035_props, "Hauppauge WinTV-MiniStick 2", NULL) },
2130         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_78E,
2131                 &af9035_props, "PCTV AndroiDTV (78e)", RC_MAP_IT913X_V1) },
2132         { DVB_USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_79E,
2133                 &af9035_props, "PCTV microStick (79e)", RC_MAP_IT913X_V2) },
2134
2135         /* IT930x devices */
2136         { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
2137                 &it930x_props, "ITE 9303 Generic", NULL) },
2138         { }
2139 };
2140 MODULE_DEVICE_TABLE(usb, af9035_id_table);
2141
2142 static struct usb_driver af9035_usb_driver = {
2143         .name = KBUILD_MODNAME,
2144         .id_table = af9035_id_table,
2145         .probe = af9035_probe,
2146         .disconnect = dvb_usbv2_disconnect,
2147         .suspend = dvb_usbv2_suspend,
2148         .resume = dvb_usbv2_resume,
2149         .reset_resume = dvb_usbv2_reset_resume,
2150         .no_dynamic_id = 1,
2151         .soft_unbind = 1,
2152 };
2153
2154 module_usb_driver(af9035_usb_driver);
2155
2156 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
2157 MODULE_DESCRIPTION("Afatech AF9035 driver");
2158 MODULE_LICENSE("GPL");
2159 /*(DEBLOBBED)*/