drivers/media/usb/dvb-usb-v2/rtl28xxu.c

   1 /*
   2  * Realtek RTL28xxU DVB USB driver
   3  *
   4  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   5  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
   6  * Copyright (C) 2012 Thomas Mair <thomas.mair86@googlemail.com>
   7  *
   8  *    This program is free software; you can redistribute it and/or modify
   9  *    it under the terms of the GNU General Public License as published by
  10  *    the Free Software Foundation; either version 2 of the License, or
  11  *    (at your option) any later version.
  12  *
  13  *    This program is distributed in the hope that it will be useful,
  14  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *    GNU General Public License for more details.
  17  *
  18  *    You should have received a copy of the GNU General Public License along
  19  *    with this program; if not, write to the Free Software Foundation, Inc.,
  20  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include "rtl28xxu.h"
  24
  25 static int rtl28xxu_disable_rc;
  26 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
  27 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
  28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  29
  30 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  31 {
  32         struct rtl28xxu_dev *dev = d->priv;
  33         int ret;
  34         unsigned int pipe;
  35         u8 requesttype;
  36
  37         mutex_lock(&d->usb_mutex);
  38
  39         if (req->size > sizeof(dev->buf)) {
  40                 dev_err(&d->intf->dev, "too large message %u\n", req->size);
  41                 ret = -EINVAL;
  42                 goto err_mutex_unlock;
  43         }
  44
  45         if (req->index & CMD_WR_FLAG) {
  46                 /* write */
  47                 memcpy(dev->buf, req->data, req->size);
  48                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  49                 pipe = usb_sndctrlpipe(d->udev, 0);
  50         } else {
  51                 /* read */
  52                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
  53
  54                 /*
  55                  * Zero-length transfers must use usb_sndctrlpipe() and
  56                  * rtl28xxu_identify_state() uses a zero-length i2c read
  57                  * command to determine the chip type.
  58                  */
  59                 if (req->size)
  60                         pipe = usb_rcvctrlpipe(d->udev, 0);
  61                 else
  62                         pipe = usb_sndctrlpipe(d->udev, 0);
  63         }
  64
  65         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  66                         req->index, dev->buf, req->size, 1000);
  67         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  68                         req->index, dev->buf, req->size);
  69         if (ret < 0)
  70                 goto err_mutex_unlock;
  71
  72         /* read request, copy returned data to return buf */
  73         if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  74                 memcpy(req->data, dev->buf, req->size);
  75
  76         mutex_unlock(&d->usb_mutex);
  77
  78         return 0;
  79 err_mutex_unlock:
  80         mutex_unlock(&d->usb_mutex);
  81         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
  82         return ret;
  83 }
  84
  85 static int rtl28xxu_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  86 {
  87         struct rtl28xxu_req req;
  88
  89         if (reg < 0x3000)
  90                 req.index = CMD_USB_WR;
  91         else if (reg < 0x4000)
  92                 req.index = CMD_SYS_WR;
  93         else
  94                 req.index = CMD_IR_WR;
  95
  96         req.value = reg;
  97         req.size = len;
  98         req.data = val;
  99
 100         return rtl28xxu_ctrl_msg(d, &req);
 101 }
 102
 103 static int rtl28xxu_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 104 {
 105         struct rtl28xxu_req req;
 106
 107         if (reg < 0x3000)
 108                 req.index = CMD_USB_RD;
 109         else if (reg < 0x4000)
 110                 req.index = CMD_SYS_RD;
 111         else
 112                 req.index = CMD_IR_RD;
 113
 114         req.value = reg;
 115         req.size = len;
 116         req.data = val;
 117
 118         return rtl28xxu_ctrl_msg(d, &req);
 119 }
 120
 121 static int rtl28xxu_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 122 {
 123         return rtl28xxu_wr_regs(d, reg, &val, 1);
 124 }
 125
 126 static int rtl28xxu_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 127 {
 128         return rtl28xxu_rd_regs(d, reg, val, 1);
 129 }
 130
 131 static int rtl28xxu_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 132                 u8 mask)
 133 {
 134         int ret;
 135         u8 tmp;
 136
 137         /* no need for read if whole reg is written */
 138         if (mask != 0xff) {
 139                 ret = rtl28xxu_rd_reg(d, reg, &tmp);
 140                 if (ret)
 141                         return ret;
 142
 143                 val &= mask;
 144                 tmp &= ~mask;
 145                 val |= tmp;
 146         }
 147
 148         return rtl28xxu_wr_reg(d, reg, val);
 149 }
 150
 151 /* I2C */
 152 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 153         int num)
 154 {
 155         int ret;
 156         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 157         struct rtl28xxu_dev *dev = d->priv;
 158         struct rtl28xxu_req req;
 159
 160         /*
 161          * It is not known which are real I2C bus xfer limits, but testing
 162          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 163          * TODO: find out RTL2832U lens
 164          */
 165
 166         /*
 167          * I2C adapter logic looks rather complicated due to fact it handles
 168          * three different access methods. Those methods are;
 169          * 1) integrated demod access
 170          * 2) old I2C access
 171          * 3) new I2C access
 172          *
 173          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 174          * requests but there is two reasons why not use it always;
 175          * 1) It is most expensive, usually two USB messages are needed
 176          * 2) At least RTL2831U does not support it
 177          *
 178          * Method 3 is needed in case of I2C write+read (typical register read)
 179          * where write is more than one byte.
 180          */
 181
 182         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 183                 return -EAGAIN;
 184
 185         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 186                 (msg[1].flags & I2C_M_RD)) {
 187                 if (msg[0].len > 24 || msg[1].len > 24) {
 188                         /* TODO: check msg[0].len max */
 189                         ret = -EOPNOTSUPP;
 190                         goto err_mutex_unlock;
 191                 } else if (msg[0].addr == 0x10) {
 192                         if (msg[0].len < 1 || msg[1].len < 1) {
 193                                 ret = -EOPNOTSUPP;
 194                                 goto err_mutex_unlock;
 195                         }
 196                         /* method 1 - integrated demod */
 197                         if (msg[0].buf[0] == 0x00) {
 198                                 /* return demod page from driver cache */
 199                                 msg[1].buf[0] = dev->page;
 200                                 ret = 0;
 201                         } else {
 202                                 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 203                                 req.index = CMD_DEMOD_RD | dev->page;
 204                                 req.size = msg[1].len;
 205                                 req.data = &msg[1].buf[0];
 206                                 ret = rtl28xxu_ctrl_msg(d, &req);
 207                         }
 208                 } else if (msg[0].len < 2) {
 209                         if (msg[0].len < 1) {
 210                                 ret = -EOPNOTSUPP;
 211                                 goto err_mutex_unlock;
 212                         }
 213                         /* method 2 - old I2C */
 214                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 215                         req.index = CMD_I2C_RD;
 216                         req.size = msg[1].len;
 217                         req.data = &msg[1].buf[0];
 218                         ret = rtl28xxu_ctrl_msg(d, &req);
 219                 } else {
 220                         /* method 3 - new I2C */
 221                         req.value = (msg[0].addr << 1);
 222                         req.index = CMD_I2C_DA_WR;
 223                         req.size = msg[0].len;
 224                         req.data = msg[0].buf;
 225                         ret = rtl28xxu_ctrl_msg(d, &req);
 226                         if (ret)
 227                                 goto err_mutex_unlock;
 228
 229                         req.value = (msg[0].addr << 1);
 230                         req.index = CMD_I2C_DA_RD;
 231                         req.size = msg[1].len;
 232                         req.data = msg[1].buf;
 233                         ret = rtl28xxu_ctrl_msg(d, &req);
 234                 }
 235         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 236                 if (msg[0].len > 22) {
 237                         /* TODO: check msg[0].len max */
 238                         ret = -EOPNOTSUPP;
 239                         goto err_mutex_unlock;
 240                 } else if (msg[0].addr == 0x10) {
 241                         if (msg[0].len < 1) {
 242                                 ret = -EOPNOTSUPP;
 243                                 goto err_mutex_unlock;
 244                         }
 245                         /* method 1 - integrated demod */
 246                         if (msg[0].buf[0] == 0x00) {
 247                                 if (msg[0].len < 2) {
 248                                         ret = -EOPNOTSUPP;
 249                                         goto err_mutex_unlock;
 250                                 }
 251                                 /* save demod page for later demod access */
 252                                 dev->page = msg[0].buf[1];
 253                                 ret = 0;
 254                         } else {
 255                                 req.value = (msg[0].buf[0] << 8) |
 256                                         (msg[0].addr << 1);
 257                                 req.index = CMD_DEMOD_WR | dev->page;
 258                                 req.size = msg[0].len-1;
 259                                 req.data = &msg[0].buf[1];
 260                                 ret = rtl28xxu_ctrl_msg(d, &req);
 261                         }
 262                 } else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
 263                         if (msg[0].len < 1) {
 264                                 ret = -EOPNOTSUPP;
 265                                 goto err_mutex_unlock;
 266                         }
 267                         /* method 2 - old I2C */
 268                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 269                         req.index = CMD_I2C_WR;
 270                         req.size = msg[0].len-1;
 271                         req.data = &msg[0].buf[1];
 272                         ret = rtl28xxu_ctrl_msg(d, &req);
 273                 } else {
 274                         /* method 3 - new I2C */
 275                         req.value = (msg[0].addr << 1);
 276                         req.index = CMD_I2C_DA_WR;
 277                         req.size = msg[0].len;
 278                         req.data = msg[0].buf;
 279                         ret = rtl28xxu_ctrl_msg(d, &req);
 280                 }
 281         } else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 282                 req.value = (msg[0].addr << 1);
 283                 req.index = CMD_I2C_DA_RD;
 284                 req.size = msg[0].len;
 285                 req.data = msg[0].buf;
 286                 ret = rtl28xxu_ctrl_msg(d, &req);
 287         } else {
 288                 ret = -EOPNOTSUPP;
 289         }
 290
 291         /* Retry failed I2C messages */
 292         if (ret == -EPIPE)
 293                 ret = -EAGAIN;
 294
 295 err_mutex_unlock:
 296         mutex_unlock(&d->i2c_mutex);
 297
 298         return ret ? ret : num;
 299 }
 300
 301 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 302 {
 303         return I2C_FUNC_I2C;
 304 }
 305
 306 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 307         .master_xfer   = rtl28xxu_i2c_xfer,
 308         .functionality = rtl28xxu_i2c_func,
 309 };
 310
 311 static int rtl2831u_read_config(struct dvb_usb_device *d)
 312 {
 313         struct rtl28xxu_dev *dev = d_to_priv(d);
 314         int ret;
 315         u8 buf[1];
 316         /* open RTL2831U/RTL2830 I2C gate */
 317         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 318         /* tuner probes */
 319         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 320         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 321
 322         dev_dbg(&d->intf->dev, "\n");
 323
 324         /*
 325          * RTL2831U GPIOs
 326          * =========================================================
 327          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 328          * GPIO2 | LED     | 0 off | 1 on  |
 329          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 330          */
 331
 332         /* GPIO direction */
 333         ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 334         if (ret)
 335                 goto err;
 336
 337         /* enable as output GPIO0, GPIO2, GPIO4 */
 338         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 339         if (ret)
 340                 goto err;
 341
 342         /*
 343          * Probe used tuner. We need to know used tuner before demod attach
 344          * since there is some demod params needed to set according to tuner.
 345          */
 346
 347         /* demod needs some time to wake up */
 348         msleep(20);
 349
 350         dev->tuner_name = "NONE";
 351
 352         /* open demod I2C gate */
 353         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 354         if (ret)
 355                 goto err;
 356
 357         /* check QT1010 ID(?) register; reg=0f val=2c */
 358         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 359         if (ret == 0 && buf[0] == 0x2c) {
 360                 dev->tuner = TUNER_RTL2830_QT1010;
 361                 dev->tuner_name = "QT1010";
 362                 goto found;
 363         }
 364
 365         /* open demod I2C gate */
 366         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 367         if (ret)
 368                 goto err;
 369
 370         /* check MT2060 ID register; reg=00 val=63 */
 371         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 372         if (ret == 0 && buf[0] == 0x63) {
 373                 dev->tuner = TUNER_RTL2830_MT2060;
 374                 dev->tuner_name = "MT2060";
 375                 goto found;
 376         }
 377
 378         /* assume MXL5005S */
 379         dev->tuner = TUNER_RTL2830_MXL5005S;
 380         dev->tuner_name = "MXL5005S";
 381         goto found;
 382
 383 found:
 384         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 385
 386         return 0;
 387 err:
 388         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 389         return ret;
 390 }
 391
 392 static int rtl2832u_read_config(struct dvb_usb_device *d)
 393 {
 394         struct rtl28xxu_dev *dev = d_to_priv(d);
 395         int ret;
 396         u8 buf[2];
 397         /* open RTL2832U/RTL2832 I2C gate */
 398         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 399         /* close RTL2832U/RTL2832 I2C gate */
 400         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 401         /* tuner probes */
 402         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 403         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 404         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 405         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 406         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 407         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 408         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 409         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 410         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 411         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 412         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 413         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 414         struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
 415         struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
 416         struct rtl28xxu_req req_si2157 = {0x00c0, CMD_I2C_RD, 1, buf};
 417         struct rtl28xxu_req req_si2168 = {0x00c8, CMD_I2C_RD, 1, buf};
 418
 419         dev_dbg(&d->intf->dev, "\n");
 420
 421         /* enable GPIO3 and GPIO6 as output */
 422         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 423         if (ret)
 424                 goto err;
 425
 426         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 427         if (ret)
 428                 goto err;
 429
 430         /*
 431          * Probe used tuner. We need to know used tuner before demod attach
 432          * since there is some demod params needed to set according to tuner.
 433          */
 434
 435         /* open demod I2C gate */
 436         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 437         if (ret)
 438                 goto err;
 439
 440         dev->tuner_name = "NONE";
 441
 442         /* check FC0012 ID register; reg=00 val=a1 */
 443         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 444         if (ret == 0 && buf[0] == 0xa1) {
 445                 dev->tuner = TUNER_RTL2832_FC0012;
 446                 dev->tuner_name = "FC0012";
 447                 goto tuner_found;
 448         }
 449
 450         /* check FC0013 ID register; reg=00 val=a3 */
 451         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 452         if (ret == 0 && buf[0] == 0xa3) {
 453                 dev->tuner = TUNER_RTL2832_FC0013;
 454                 dev->tuner_name = "FC0013";
 455                 goto tuner_found;
 456         }
 457
 458         /* check MT2266 ID register; reg=00 val=85 */
 459         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 460         if (ret == 0 && buf[0] == 0x85) {
 461                 dev->tuner = TUNER_RTL2832_MT2266;
 462                 dev->tuner_name = "MT2266";
 463                 goto tuner_found;
 464         }
 465
 466         /* check FC2580 ID register; reg=01 val=56 */
 467         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 468         if (ret == 0 && buf[0] == 0x56) {
 469                 dev->tuner = TUNER_RTL2832_FC2580;
 470                 dev->tuner_name = "FC2580";
 471                 goto tuner_found;
 472         }
 473
 474         /* check MT2063 ID register; reg=00 val=9e || 9c */
 475         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 476         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 477                 dev->tuner = TUNER_RTL2832_MT2063;
 478                 dev->tuner_name = "MT2063";
 479                 goto tuner_found;
 480         }
 481
 482         /* check MAX3543 ID register; reg=00 val=38 */
 483         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 484         if (ret == 0 && buf[0] == 0x38) {
 485                 dev->tuner = TUNER_RTL2832_MAX3543;
 486                 dev->tuner_name = "MAX3543";
 487                 goto tuner_found;
 488         }
 489
 490         /* check TUA9001 ID register; reg=7e val=2328 */
 491         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 492         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 493                 dev->tuner = TUNER_RTL2832_TUA9001;
 494                 dev->tuner_name = "TUA9001";
 495                 goto tuner_found;
 496         }
 497
 498         /* check MXL5007R ID register; reg=d9 val=14 */
 499         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 500         if (ret == 0 && buf[0] == 0x14) {
 501                 dev->tuner = TUNER_RTL2832_MXL5007T;
 502                 dev->tuner_name = "MXL5007T";
 503                 goto tuner_found;
 504         }
 505
 506         /* check E4000 ID register; reg=02 val=40 */
 507         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 508         if (ret == 0 && buf[0] == 0x40) {
 509                 dev->tuner = TUNER_RTL2832_E4000;
 510                 dev->tuner_name = "E4000";
 511                 goto tuner_found;
 512         }
 513
 514         /* check TDA18272 ID register; reg=00 val=c760  */
 515         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 516         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 517                 dev->tuner = TUNER_RTL2832_TDA18272;
 518                 dev->tuner_name = "TDA18272";
 519                 goto tuner_found;
 520         }
 521
 522         /* check R820T ID register; reg=00 val=69 */
 523         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 524         if (ret == 0 && buf[0] == 0x69) {
 525                 dev->tuner = TUNER_RTL2832_R820T;
 526                 dev->tuner_name = "R820T";
 527                 goto tuner_found;
 528         }
 529
 530         /* check R828D ID register; reg=00 val=69 */
 531         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 532         if (ret == 0 && buf[0] == 0x69) {
 533                 dev->tuner = TUNER_RTL2832_R828D;
 534                 dev->tuner_name = "R828D";
 535                 goto tuner_found;
 536         }
 537
 538         /* GPIO0 and GPIO5 to reset Si2157/Si2168 tuner and demod */
 539         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x21);
 540         if (ret)
 541                 goto err;
 542
 543         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x21);
 544         if (ret)
 545                 goto err;
 546
 547         msleep(50);
 548
 549         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x21, 0x21);
 550         if (ret)
 551                 goto err;
 552
 553         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x21, 0x21);
 554         if (ret)
 555                 goto err;
 556
 557         msleep(50);
 558
 559         /* check Si2157 ID register; reg=c0 val=80 */
 560         ret = rtl28xxu_ctrl_msg(d, &req_si2157);
 561         if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 562                 dev->tuner = TUNER_RTL2832_SI2157;
 563                 dev->tuner_name = "SI2157";
 564                 goto tuner_found;
 565         }
 566
 567 tuner_found:
 568         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 569
 570         /* probe slave demod */
 571         if (dev->tuner == TUNER_RTL2832_R828D) {
 572                 /* power on MN88472 demod on GPIO0 */
 573                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
 574                 if (ret)
 575                         goto err;
 576
 577                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 578                 if (ret)
 579                         goto err;
 580
 581                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 582                 if (ret)
 583                         goto err;
 584
 585                 /* check MN88472 answers */
 586                 ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
 587                 if (ret == 0 && buf[0] == 0x02) {
 588                         dev_dbg(&d->intf->dev, "MN88472 found\n");
 589                         dev->slave_demod = SLAVE_DEMOD_MN88472;
 590                         goto demod_found;
 591                 }
 592
 593                 ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
 594                 if (ret == 0 && buf[0] == 0x03) {
 595                         dev_dbg(&d->intf->dev, "MN88473 found\n");
 596                         dev->slave_demod = SLAVE_DEMOD_MN88473;
 597                         goto demod_found;
 598                 }
 599         }
 600         if (dev->tuner == TUNER_RTL2832_SI2157) {
 601                 /* check Si2168 ID register; reg=c8 val=80 */
 602                 ret = rtl28xxu_ctrl_msg(d, &req_si2168);
 603                 if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 604                         dev_dbg(&d->intf->dev, "Si2168 found\n");
 605                         dev->slave_demod = SLAVE_DEMOD_SI2168;
 606                         goto demod_found;
 607                 }
 608         }
 609
 610 demod_found:
 611         /* close demod I2C gate */
 612         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 613         if (ret < 0)
 614                 goto err;
 615
 616         return 0;
 617 err:
 618         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 619         return ret;
 620 }
 621
 622 static int rtl28xxu_read_config(struct dvb_usb_device *d)
 623 {
 624         struct rtl28xxu_dev *dev = d_to_priv(d);
 625
 626         if (dev->chip_id == CHIP_ID_RTL2831U)
 627                 return rtl2831u_read_config(d);
 628         else
 629                 return rtl2832u_read_config(d);
 630 }
 631
 632 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
 633 {
 634         struct rtl28xxu_dev *dev = d_to_priv(d);
 635         int ret;
 636         struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
 637
 638         dev_dbg(&d->intf->dev, "\n");
 639
 640         /*
 641          * Detect chip type using I2C command that is not supported
 642          * by old RTL2831U.
 643          */
 644         ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
 645         if (ret == -EPIPE) {
 646                 dev->chip_id = CHIP_ID_RTL2831U;
 647         } else if (ret == 0) {
 648                 dev->chip_id = CHIP_ID_RTL2832U;
 649         } else {
 650                 dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
 651                 goto err;
 652         }
 653         dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
 654
 655         /* Retry failed I2C messages */
 656         d->i2c_adap.retries = 3;
 657         d->i2c_adap.timeout = msecs_to_jiffies(10);
 658
 659         return WARM;
 660 err:
 661         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 662         return ret;
 663 }
 664
 665 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
 666         .clk = 28800000,
 667         .spec_inv = 1,
 668         .vtop = 0x20,
 669         .krf = 0x04,
 670         .agc_targ_val = 0x2d,
 671
 672 };
 673
 674 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
 675         .clk = 28800000,
 676         .spec_inv = 1,
 677         .vtop = 0x20,
 678         .krf = 0x04,
 679         .agc_targ_val = 0x2d,
 680 };
 681
 682 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
 683         .clk = 28800000,
 684         .spec_inv = 0,
 685         .vtop = 0x3f,
 686         .krf = 0x04,
 687         .agc_targ_val = 0x3e,
 688 };
 689
 690 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 691 {
 692         struct dvb_usb_device *d = adap_to_d(adap);
 693         struct rtl28xxu_dev *dev = d_to_priv(d);
 694         struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
 695         struct i2c_board_info board_info;
 696         struct i2c_client *client;
 697         int ret;
 698
 699         dev_dbg(&d->intf->dev, "\n");
 700
 701         switch (dev->tuner) {
 702         case TUNER_RTL2830_QT1010:
 703                 *pdata = rtl2830_qt1010_platform_data;
 704                 break;
 705         case TUNER_RTL2830_MT2060:
 706                 *pdata = rtl2830_mt2060_platform_data;
 707                 break;
 708         case TUNER_RTL2830_MXL5005S:
 709                 *pdata = rtl2830_mxl5005s_platform_data;
 710                 break;
 711         default:
 712                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 713                 ret = -ENODEV;
 714                 goto err;
 715         }
 716
 717         /* attach demodulator */
 718         memset(&board_info, 0, sizeof(board_info));
 719         strlcpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
 720         board_info.addr = 0x10;
 721         board_info.platform_data = pdata;
 722         request_module("%s", board_info.type);
 723         client = i2c_new_device(&d->i2c_adap, &board_info);
 724         if (client == NULL || client->dev.driver == NULL) {
 725                 ret = -ENODEV;
 726                 goto err;
 727         }
 728
 729         if (!try_module_get(client->dev.driver->owner)) {
 730                 i2c_unregister_device(client);
 731                 ret = -ENODEV;
 732                 goto err;
 733         }
 734
 735         adap->fe[0] = pdata->get_dvb_frontend(client);
 736         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 737
 738         dev->i2c_client_demod = client;
 739
 740         return 0;
 741 err:
 742         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 743         return ret;
 744 }
 745
 746 static const struct rtl2832_platform_data rtl2832_fc2580_platform_data = {
 747         .clk = 28800000,
 748         .tuner = TUNER_RTL2832_FC2580,
 749 };
 750
 751 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
 752         .clk = 28800000,
 753         .tuner = TUNER_RTL2832_FC0012
 754 };
 755
 756 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
 757         .clk = 28800000,
 758         .tuner = TUNER_RTL2832_FC0013
 759 };
 760
 761 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
 762         .clk = 28800000,
 763         .tuner = TUNER_RTL2832_TUA9001,
 764 };
 765
 766 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
 767         .clk = 28800000,
 768         .tuner = TUNER_RTL2832_E4000,
 769 };
 770
 771 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
 772         .clk = 28800000,
 773         .tuner = TUNER_RTL2832_R820T,
 774 };
 775
 776 static const struct rtl2832_platform_data rtl2832_si2157_platform_data = {
 777         .clk = 28800000,
 778         .tuner = TUNER_RTL2832_SI2157,
 779 };
 780
 781 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 782                 int cmd, int arg)
 783 {
 784         int ret;
 785         u8 val;
 786
 787         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 788
 789         switch (cmd) {
 790         case FC_FE_CALLBACK_VHF_ENABLE:
 791                 /* set output values */
 792                 ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 793                 if (ret)
 794                         goto err;
 795
 796                 if (arg)
 797                         val &= 0xbf; /* set GPIO6 low */
 798                 else
 799                         val |= 0x40; /* set GPIO6 high */
 800
 801
 802                 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 803                 if (ret)
 804                         goto err;
 805                 break;
 806         default:
 807                 ret = -EINVAL;
 808                 goto err;
 809         }
 810         return 0;
 811 err:
 812         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 813         return ret;
 814 }
 815
 816 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 817                 int cmd, int arg)
 818 {
 819         int ret;
 820         u8 val;
 821
 822         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 823
 824         /*
 825          * CEN     always enabled by hardware wiring
 826          * RESETN  GPIO4
 827          * RXEN    GPIO1
 828          */
 829
 830         switch (cmd) {
 831         case TUA9001_CMD_RESETN:
 832                 if (arg)
 833                         val = (1 << 4);
 834                 else
 835                         val = (0 << 4);
 836
 837                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 838                 if (ret)
 839                         goto err;
 840                 break;
 841         case TUA9001_CMD_RXEN:
 842                 if (arg)
 843                         val = (1 << 1);
 844                 else
 845                         val = (0 << 1);
 846
 847                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 848                 if (ret)
 849                         goto err;
 850                 break;
 851         }
 852
 853         return 0;
 854 err:
 855         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 856         return ret;
 857 }
 858
 859 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 860                 int cmd, int arg)
 861 {
 862         struct i2c_adapter *adapter = adapter_priv;
 863         struct device *parent = adapter->dev.parent;
 864         struct i2c_adapter *parent_adapter;
 865         struct dvb_usb_device *d;
 866         struct rtl28xxu_dev *dev;
 867
 868         /*
 869          * All tuners are connected to demod muxed I2C adapter. We have to
 870          * resolve its parent adapter in order to get handle for this driver
 871          * private data. That is a bit hackish solution, GPIO or direct driver
 872          * callback would be better...
 873          */
 874         if (parent != NULL && parent->type == &i2c_adapter_type)
 875                 parent_adapter = to_i2c_adapter(parent);
 876         else
 877                 return -EINVAL;
 878
 879         d = i2c_get_adapdata(parent_adapter);
 880         dev = d->priv;
 881
 882         dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
 883                 component, cmd, arg);
 884
 885         switch (component) {
 886         case DVB_FRONTEND_COMPONENT_TUNER:
 887                 switch (dev->tuner) {
 888                 case TUNER_RTL2832_FC0012:
 889                         return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 890                 case TUNER_RTL2832_TUA9001:
 891                         return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 892                 }
 893         }
 894
 895         return 0;
 896 }
 897
 898 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 899 {
 900         struct dvb_usb_device *d = adap_to_d(adap);
 901         struct rtl28xxu_dev *dev = d_to_priv(d);
 902         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
 903         struct i2c_board_info board_info;
 904         struct i2c_client *client;
 905         int ret;
 906
 907         dev_dbg(&d->intf->dev, "\n");
 908
 909         switch (dev->tuner) {
 910         case TUNER_RTL2832_FC0012:
 911                 *pdata = rtl2832_fc0012_platform_data;
 912                 break;
 913         case TUNER_RTL2832_FC0013:
 914                 *pdata = rtl2832_fc0013_platform_data;
 915                 break;
 916         case TUNER_RTL2832_FC2580:
 917                 *pdata = rtl2832_fc2580_platform_data;
 918                 break;
 919         case TUNER_RTL2832_TUA9001:
 920                 *pdata = rtl2832_tua9001_platform_data;
 921                 break;
 922         case TUNER_RTL2832_E4000:
 923                 *pdata = rtl2832_e4000_platform_data;
 924                 break;
 925         case TUNER_RTL2832_R820T:
 926         case TUNER_RTL2832_R828D:
 927                 *pdata = rtl2832_r820t_platform_data;
 928                 break;
 929         case TUNER_RTL2832_SI2157:
 930                 *pdata = rtl2832_si2157_platform_data;
 931                 break;
 932         default:
 933                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 934                 ret = -ENODEV;
 935                 goto err;
 936         }
 937
 938         /* attach demodulator */
 939         memset(&board_info, 0, sizeof(board_info));
 940         strlcpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
 941         board_info.addr = 0x10;
 942         board_info.platform_data = pdata;
 943         request_module("%s", board_info.type);
 944         client = i2c_new_device(&d->i2c_adap, &board_info);
 945         if (client == NULL || client->dev.driver == NULL) {
 946                 ret = -ENODEV;
 947                 goto err;
 948         }
 949
 950         if (!try_module_get(client->dev.driver->owner)) {
 951                 i2c_unregister_device(client);
 952                 ret = -ENODEV;
 953                 goto err;
 954         }
 955
 956         adap->fe[0] = pdata->get_dvb_frontend(client);
 957         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 958
 959         dev->i2c_client_demod = client;
 960
 961         /* set fe callback */
 962         adap->fe[0]->callback = rtl2832u_frontend_callback;
 963
 964         if (dev->slave_demod) {
 965                 struct i2c_board_info info = {};
 966
 967                 /*
 968                  * We continue on reduced mode, without DVB-T2/C, using master
 969                  * demod, when slave demod fails.
 970                  */
 971                 ret = 0;
 972
 973                 /* attach slave demodulator */
 974                 if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
 975                         struct mn88472_config mn88472_config = {};
 976
 977                         mn88472_config.fe = &adap->fe[1];
 978                         mn88472_config.i2c_wr_max = 22,
 979                         strlcpy(info.type, "mn88472", I2C_NAME_SIZE);
 980                         mn88472_config.xtal = 20500000;
 981                         mn88472_config.ts_mode = SERIAL_TS_MODE;
 982                         mn88472_config.ts_clock = VARIABLE_TS_CLOCK;
 983                         info.addr = 0x18;
 984                         info.platform_data = &mn88472_config;
 985                         request_module(info.type);
 986                         client = i2c_new_device(&d->i2c_adap, &info);
 987                         if (client == NULL || client->dev.driver == NULL) {
 988                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 989                                 goto err_slave_demod_failed;
 990                         }
 991
 992                         if (!try_module_get(client->dev.driver->owner)) {
 993                                 i2c_unregister_device(client);
 994                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 995                                 goto err_slave_demod_failed;
 996                         }
 997
 998                         dev->i2c_client_slave_demod = client;
 999                 } else if (dev->slave_demod == SLAVE_DEMOD_MN88473) {
1000                         struct mn88473_config mn88473_config = {};
1001
1002                         mn88473_config.fe = &adap->fe[1];
1003                         mn88473_config.i2c_wr_max = 22,
1004                         strlcpy(info.type, "mn88473", I2C_NAME_SIZE);
1005                         info.addr = 0x18;
1006                         info.platform_data = &mn88473_config;
1007                         request_module(info.type);
1008                         client = i2c_new_device(&d->i2c_adap, &info);
1009                         if (client == NULL || client->dev.driver == NULL) {
1010                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1011                                 goto err_slave_demod_failed;
1012                         }
1013
1014                         if (!try_module_get(client->dev.driver->owner)) {
1015                                 i2c_unregister_device(client);
1016                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1017                                 goto err_slave_demod_failed;
1018                         }
1019
1020                         dev->i2c_client_slave_demod = client;
1021                 } else {
1022                         struct si2168_config si2168_config = {};
1023                         struct i2c_adapter *adapter;
1024
1025                         si2168_config.i2c_adapter = &adapter;
1026                         si2168_config.fe = &adap->fe[1];
1027                         si2168_config.ts_mode = SI2168_TS_SERIAL;
1028                         si2168_config.ts_clock_inv = false;
1029                         si2168_config.ts_clock_gapped = true;
1030                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1031                         info.addr = 0x64;
1032                         info.platform_data = &si2168_config;
1033                         request_module(info.type);
1034                         client = i2c_new_device(&d->i2c_adap, &info);
1035                         if (client == NULL || client->dev.driver == NULL) {
1036                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1037                                 goto err_slave_demod_failed;
1038                         }
1039
1040                         if (!try_module_get(client->dev.driver->owner)) {
1041                                 i2c_unregister_device(client);
1042                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1043                                 goto err_slave_demod_failed;
1044                         }
1045
1046                         dev->i2c_client_slave_demod = client;
1047
1048                         /* for Si2168 devices use only new I2C write method */
1049                         dev->new_i2c_write = true;
1050                 }
1051         }
1052         return 0;
1053 err_slave_demod_failed:
1054 err:
1055         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1056         return ret;
1057 }
1058
1059 static int rtl28xxu_frontend_attach(struct dvb_usb_adapter *adap)
1060 {
1061         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1062
1063         if (dev->chip_id == CHIP_ID_RTL2831U)
1064                 return rtl2831u_frontend_attach(adap);
1065         else
1066                 return rtl2832u_frontend_attach(adap);
1067 }
1068
1069 static int rtl28xxu_frontend_detach(struct dvb_usb_adapter *adap)
1070 {
1071         struct dvb_usb_device *d = adap_to_d(adap);
1072         struct rtl28xxu_dev *dev = d_to_priv(d);
1073         struct i2c_client *client;
1074
1075         dev_dbg(&d->intf->dev, "\n");
1076
1077         /* remove I2C slave demod */
1078         client = dev->i2c_client_slave_demod;
1079         if (client) {
1080                 module_put(client->dev.driver->owner);
1081                 i2c_unregister_device(client);
1082         }
1083
1084         /* remove I2C demod */
1085         client = dev->i2c_client_demod;
1086         if (client) {
1087                 module_put(client->dev.driver->owner);
1088                 i2c_unregister_device(client);
1089         }
1090
1091         return 0;
1092 }
1093
1094 static struct qt1010_config rtl28xxu_qt1010_config = {
1095         .i2c_address = 0x62, /* 0xc4 */
1096 };
1097
1098 static struct mt2060_config rtl28xxu_mt2060_config = {
1099         .i2c_address = 0x60, /* 0xc0 */
1100         .clock_out = 0,
1101 };
1102
1103 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
1104         .i2c_address     = 0x63, /* 0xc6 */
1105         .if_freq         = IF_FREQ_4570000HZ,
1106         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
1107         .agc_mode        = MXL_SINGLE_AGC,
1108         .tracking_filter = MXL_TF_C_H,
1109         .rssi_enable     = MXL_RSSI_ENABLE,
1110         .cap_select      = MXL_CAP_SEL_ENABLE,
1111         .div_out         = MXL_DIV_OUT_4,
1112         .clock_out       = MXL_CLOCK_OUT_DISABLE,
1113         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
1114         .top             = MXL5005S_TOP_25P2,
1115         .mod_mode        = MXL_DIGITAL_MODE,
1116         .if_mode         = MXL_ZERO_IF,
1117         .AgcMasterByte   = 0x00,
1118 };
1119
1120 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
1121 {
1122         int ret;
1123         struct dvb_usb_device *d = adap_to_d(adap);
1124         struct rtl28xxu_dev *dev = d_to_priv(d);
1125         struct dvb_frontend *fe;
1126
1127         dev_dbg(&d->intf->dev, "\n");
1128
1129         switch (dev->tuner) {
1130         case TUNER_RTL2830_QT1010:
1131                 fe = dvb_attach(qt1010_attach, adap->fe[0],
1132                                 dev->demod_i2c_adapter,
1133                                 &rtl28xxu_qt1010_config);
1134                 break;
1135         case TUNER_RTL2830_MT2060:
1136                 fe = dvb_attach(mt2060_attach, adap->fe[0],
1137                                 dev->demod_i2c_adapter,
1138                                 &rtl28xxu_mt2060_config, 1220);
1139                 break;
1140         case TUNER_RTL2830_MXL5005S:
1141                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
1142                                 dev->demod_i2c_adapter,
1143                                 &rtl28xxu_mxl5005s_config);
1144                 break;
1145         default:
1146                 fe = NULL;
1147                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1148         }
1149
1150         if (fe == NULL) {
1151                 ret = -ENODEV;
1152                 goto err;
1153         }
1154
1155         return 0;
1156 err:
1157         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1158         return ret;
1159 }
1160
1161 static const struct fc0012_config rtl2832u_fc0012_config = {
1162         .i2c_address = 0x63, /* 0xc6 >> 1 */
1163         .xtal_freq = FC_XTAL_28_8_MHZ,
1164 };
1165
1166 static const struct r820t_config rtl2832u_r820t_config = {
1167         .i2c_addr = 0x1a,
1168         .xtal = 28800000,
1169         .max_i2c_msg_len = 2,
1170         .rafael_chip = CHIP_R820T,
1171 };
1172
1173 static const struct r820t_config rtl2832u_r828d_config = {
1174         .i2c_addr = 0x3a,
1175         .xtal = 16000000,
1176         .max_i2c_msg_len = 2,
1177         .rafael_chip = CHIP_R828D,
1178 };
1179
1180 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
1181 {
1182         int ret;
1183         struct dvb_usb_device *d = adap_to_d(adap);
1184         struct rtl28xxu_dev *dev = d_to_priv(d);
1185         struct dvb_frontend *fe = NULL;
1186         struct i2c_board_info info;
1187         struct i2c_client *client;
1188         struct v4l2_subdev *subdev = NULL;
1189         struct platform_device *pdev;
1190         struct rtl2832_sdr_platform_data pdata;
1191
1192         dev_dbg(&d->intf->dev, "\n");
1193
1194         memset(&info, 0, sizeof(struct i2c_board_info));
1195         memset(&pdata, 0, sizeof(pdata));
1196
1197         switch (dev->tuner) {
1198         case TUNER_RTL2832_FC0012:
1199                 fe = dvb_attach(fc0012_attach, adap->fe[0],
1200                         dev->demod_i2c_adapter, &rtl2832u_fc0012_config);
1201
1202                 /* since fc0012 includs reading the signal strength delegate
1203                  * that to the tuner driver */
1204                 adap->fe[0]->ops.read_signal_strength =
1205                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1206                 break;
1207         case TUNER_RTL2832_FC0013:
1208                 fe = dvb_attach(fc0013_attach, adap->fe[0],
1209                         dev->demod_i2c_adapter, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
1210
1211                 /* fc0013 also supports signal strength reading */
1212                 adap->fe[0]->ops.read_signal_strength =
1213                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1214                 break;
1215         case TUNER_RTL2832_E4000: {
1216                         struct e4000_config e4000_config = {
1217                                 .fe = adap->fe[0],
1218                                 .clock = 28800000,
1219                         };
1220
1221                         strlcpy(info.type, "e4000", I2C_NAME_SIZE);
1222                         info.addr = 0x64;
1223                         info.platform_data = &e4000_config;
1224
1225                         request_module(info.type);
1226                         client = i2c_new_device(dev->demod_i2c_adapter, &info);
1227                         if (client == NULL || client->dev.driver == NULL)
1228                                 break;
1229
1230                         if (!try_module_get(client->dev.driver->owner)) {
1231                                 i2c_unregister_device(client);
1232                                 break;
1233                         }
1234
1235                         dev->i2c_client_tuner = client;
1236                         subdev = i2c_get_clientdata(client);
1237                 }
1238                 break;
1239         case TUNER_RTL2832_FC2580: {
1240                         struct fc2580_platform_data fc2580_pdata = {
1241                                 .dvb_frontend = adap->fe[0],
1242                         };
1243                         struct i2c_board_info board_info = {};
1244
1245                         strlcpy(board_info.type, "fc2580", I2C_NAME_SIZE);
1246                         board_info.addr = 0x56;
1247                         board_info.platform_data = &fc2580_pdata;
1248                         request_module("fc2580");
1249                         client = i2c_new_device(dev->demod_i2c_adapter,
1250                                                 &board_info);
1251                         if (client == NULL || client->dev.driver == NULL)
1252                                 break;
1253                         if (!try_module_get(client->dev.driver->owner)) {
1254                                 i2c_unregister_device(client);
1255                                 break;
1256                         }
1257                         dev->i2c_client_tuner = client;
1258                         subdev = fc2580_pdata.get_v4l2_subdev(client);
1259                 }
1260                 break;
1261         case TUNER_RTL2832_TUA9001: {
1262                 struct tua9001_platform_data tua9001_pdata = {
1263                         .dvb_frontend = adap->fe[0],
1264                 };
1265                 struct i2c_board_info board_info = {};
1266
1267                 /* enable GPIO1 and GPIO4 as output */
1268                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1269                 if (ret)
1270                         goto err;
1271
1272                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1273                 if (ret)
1274                         goto err;
1275
1276                 strlcpy(board_info.type, "tua9001", I2C_NAME_SIZE);
1277                 board_info.addr = 0x60;
1278                 board_info.platform_data = &tua9001_pdata;
1279                 request_module("tua9001");
1280                 client = i2c_new_device(dev->demod_i2c_adapter, &board_info);
1281                 if (client == NULL || client->dev.driver == NULL)
1282                         break;
1283                 if (!try_module_get(client->dev.driver->owner)) {
1284                         i2c_unregister_device(client);
1285                         break;
1286                 }
1287                 dev->i2c_client_tuner = client;
1288                 break;
1289         }
1290         case TUNER_RTL2832_R820T:
1291                 fe = dvb_attach(r820t_attach, adap->fe[0],
1292                                 dev->demod_i2c_adapter,
1293                                 &rtl2832u_r820t_config);
1294
1295                 /* Use tuner to get the signal strength */
1296                 adap->fe[0]->ops.read_signal_strength =
1297                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1298                 break;
1299         case TUNER_RTL2832_R828D:
1300                 fe = dvb_attach(r820t_attach, adap->fe[0],
1301                                 dev->demod_i2c_adapter,
1302                                 &rtl2832u_r828d_config);
1303                 adap->fe[0]->ops.read_signal_strength =
1304                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1305
1306                 if (adap->fe[1]) {
1307                         fe = dvb_attach(r820t_attach, adap->fe[1],
1308                                         dev->demod_i2c_adapter,
1309                                         &rtl2832u_r828d_config);
1310                         adap->fe[1]->ops.read_signal_strength =
1311                                         adap->fe[1]->ops.tuner_ops.get_rf_strength;
1312                 }
1313                 break;
1314         case TUNER_RTL2832_SI2157: {
1315                         struct si2157_config si2157_config = {
1316                                 .fe = adap->fe[0],
1317                                 .if_port = 0,
1318                                 .inversion = false,
1319                         };
1320
1321                         strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1322                         info.addr = 0x60;
1323                         info.platform_data = &si2157_config;
1324                         request_module(info.type);
1325                         client = i2c_new_device(&d->i2c_adap, &info);
1326                         if (client == NULL || client->dev.driver == NULL)
1327                                 break;
1328
1329                         if (!try_module_get(client->dev.driver->owner)) {
1330                                 i2c_unregister_device(client);
1331                                 break;
1332                         }
1333
1334                         dev->i2c_client_tuner = client;
1335                         subdev = i2c_get_clientdata(client);
1336
1337                         /* copy tuner ops for 2nd FE as tuner is shared */
1338                         if (adap->fe[1]) {
1339                                 adap->fe[1]->tuner_priv =
1340                                                 adap->fe[0]->tuner_priv;
1341                                 memcpy(&adap->fe[1]->ops.tuner_ops,
1342                                                 &adap->fe[0]->ops.tuner_ops,
1343                                                 sizeof(struct dvb_tuner_ops));
1344                         }
1345                 }
1346                 break;
1347         default:
1348                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1349         }
1350         if (fe == NULL && dev->i2c_client_tuner == NULL) {
1351                 ret = -ENODEV;
1352                 goto err;
1353         }
1354
1355         /* register SDR */
1356         switch (dev->tuner) {
1357         case TUNER_RTL2832_FC2580:
1358         case TUNER_RTL2832_FC0012:
1359         case TUNER_RTL2832_FC0013:
1360         case TUNER_RTL2832_E4000:
1361         case TUNER_RTL2832_R820T:
1362         case TUNER_RTL2832_R828D:
1363                 pdata.clk = dev->rtl2832_platform_data.clk;
1364                 pdata.tuner = dev->tuner;
1365                 pdata.regmap = dev->rtl2832_platform_data.regmap;
1366                 pdata.dvb_frontend = adap->fe[0];
1367                 pdata.dvb_usb_device = d;
1368                 pdata.v4l2_subdev = subdev;
1369
1370                 request_module("%s", "rtl2832_sdr");
1371                 pdev = platform_device_register_data(&d->intf->dev,
1372                                                      "rtl2832_sdr",
1373                                                      PLATFORM_DEVID_AUTO,
1374                                                      &pdata, sizeof(pdata));
1375                 if (IS_ERR(pdev) || pdev->dev.driver == NULL)
1376                         break;
1377                 dev->platform_device_sdr = pdev;
1378                 break;
1379         default:
1380                 dev_dbg(&d->intf->dev, "no SDR for tuner=%d\n", dev->tuner);
1381         }
1382
1383         return 0;
1384 err:
1385         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1386         return ret;
1387 }
1388
1389 static int rtl28xxu_tuner_attach(struct dvb_usb_adapter *adap)
1390 {
1391         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1392
1393         if (dev->chip_id == CHIP_ID_RTL2831U)
1394                 return rtl2831u_tuner_attach(adap);
1395         else
1396                 return rtl2832u_tuner_attach(adap);
1397 }
1398
1399 static int rtl28xxu_tuner_detach(struct dvb_usb_adapter *adap)
1400 {
1401         struct dvb_usb_device *d = adap_to_d(adap);
1402         struct rtl28xxu_dev *dev = d_to_priv(d);
1403         struct i2c_client *client;
1404         struct platform_device *pdev;
1405
1406         dev_dbg(&d->intf->dev, "\n");
1407
1408         /* remove platform SDR */
1409         pdev = dev->platform_device_sdr;
1410         if (pdev)
1411                 platform_device_unregister(pdev);
1412
1413         /* remove I2C tuner */
1414         client = dev->i2c_client_tuner;
1415         if (client) {
1416                 module_put(client->dev.driver->owner);
1417                 i2c_unregister_device(client);
1418         }
1419
1420         return 0;
1421 }
1422
1423 static int rtl28xxu_init(struct dvb_usb_device *d)
1424 {
1425         int ret;
1426         u8 val;
1427
1428         dev_dbg(&d->intf->dev, "\n");
1429
1430         /* init USB endpoints */
1431         ret = rtl28xxu_rd_reg(d, USB_SYSCTL_0, &val);
1432         if (ret)
1433                 goto err;
1434
1435         /* enable DMA and Full Packet Mode*/
1436         val |= 0x09;
1437         ret = rtl28xxu_wr_reg(d, USB_SYSCTL_0, val);
1438         if (ret)
1439                 goto err;
1440
1441         /* set EPA maximum packet size to 0x0200 */
1442         ret = rtl28xxu_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1443         if (ret)
1444                 goto err;
1445
1446         /* change EPA FIFO length */
1447         ret = rtl28xxu_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1448         if (ret)
1449                 goto err;
1450
1451         return ret;
1452 err:
1453         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1454         return ret;
1455 }
1456
1457 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1458 {
1459         int ret;
1460         u8 gpio, sys0, epa_ctl[2];
1461
1462         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1463
1464         /* demod adc */
1465         ret = rtl28xxu_rd_reg(d, SYS_SYS0, &sys0);
1466         if (ret)
1467                 goto err;
1468
1469         /* tuner power, read GPIOs */
1470         ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1471         if (ret)
1472                 goto err;
1473
1474         dev_dbg(&d->intf->dev, "RD SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1475
1476         if (onoff) {
1477                 gpio |= 0x01; /* GPIO0 = 1 */
1478                 gpio &= (~0x10); /* GPIO4 = 0 */
1479                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1480                 sys0 = sys0 & 0x0f;
1481                 sys0 |= 0xe0;
1482                 epa_ctl[0] = 0x00; /* clear stall */
1483                 epa_ctl[1] = 0x00; /* clear reset */
1484         } else {
1485                 gpio &= (~0x01); /* GPIO0 = 0 */
1486                 gpio |= 0x10; /* GPIO4 = 1 */
1487                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1488                 sys0 = sys0 & (~0xc0);
1489                 epa_ctl[0] = 0x10; /* set stall */
1490                 epa_ctl[1] = 0x02; /* set reset */
1491         }
1492
1493         dev_dbg(&d->intf->dev, "WR SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1494
1495         /* demod adc */
1496         ret = rtl28xxu_wr_reg(d, SYS_SYS0, sys0);
1497         if (ret)
1498                 goto err;
1499
1500         /* tuner power, write GPIOs */
1501         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1502         if (ret)
1503                 goto err;
1504
1505         /* streaming EP: stall & reset */
1506         ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1507         if (ret)
1508                 goto err;
1509
1510         if (onoff)
1511                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1512
1513         return ret;
1514 err:
1515         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1516         return ret;
1517 }
1518
1519 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1520 {
1521         int ret;
1522
1523         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1524
1525         if (onoff) {
1526                 /* GPIO3=1, GPIO4=0 */
1527                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1528                 if (ret)
1529                         goto err;
1530
1531                 /* suspend? */
1532                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1533                 if (ret)
1534                         goto err;
1535
1536                 /* enable PLL */
1537                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1538                 if (ret)
1539                         goto err;
1540
1541                 /* disable reset */
1542                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1543                 if (ret)
1544                         goto err;
1545
1546                 /* streaming EP: clear stall & reset */
1547                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1548                 if (ret)
1549                         goto err;
1550
1551                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1552                 if (ret)
1553                         goto err;
1554         } else {
1555                 /* GPIO4=1 */
1556                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1557                 if (ret)
1558                         goto err;
1559
1560                 /* disable PLL */
1561                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1562                 if (ret)
1563                         goto err;
1564
1565                 /* streaming EP: set stall & reset */
1566                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1567                 if (ret)
1568                         goto err;
1569         }
1570
1571         return ret;
1572 err:
1573         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1574         return ret;
1575 }
1576
1577 static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
1578 {
1579         struct rtl28xxu_dev *dev = d_to_priv(d);
1580
1581         if (dev->chip_id == CHIP_ID_RTL2831U)
1582                 return rtl2831u_power_ctrl(d, onoff);
1583         else
1584                 return rtl2832u_power_ctrl(d, onoff);
1585 }
1586
1587 static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
1588 {
1589         struct dvb_usb_device *d = fe_to_d(fe);
1590         struct rtl28xxu_dev *dev = fe_to_priv(fe);
1591         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1592         int ret;
1593         u8 val;
1594
1595         dev_dbg(&d->intf->dev, "fe=%d onoff=%d\n", fe->id, onoff);
1596
1597         if (dev->chip_id == CHIP_ID_RTL2831U)
1598                 return 0;
1599
1600         if (fe->id == 0) {
1601                 /* control internal demod ADC */
1602                 if (onoff)
1603                         val = 0x48; /* enable ADC */
1604                 else
1605                         val = 0x00; /* disable ADC */
1606
1607                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
1608                 if (ret)
1609                         goto err;
1610         } else if (fe->id == 1) {
1611                 /* bypass slave demod TS through master demod */
1612                 ret = pdata->slave_ts_ctrl(dev->i2c_client_demod, onoff);
1613                 if (ret)
1614                         goto err;
1615         }
1616
1617         return 0;
1618 err:
1619         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1620         return ret;
1621 }
1622
1623 #if IS_ENABLED(CONFIG_RC_CORE)
1624 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1625 {
1626         int ret, i;
1627         struct rtl28xxu_dev *dev = d->priv;
1628         u8 buf[5];
1629         u32 rc_code;
1630         struct rtl28xxu_reg_val rc_nec_tab[] = {
1631                 { 0x3033, 0x80 },
1632                 { 0x3020, 0x43 },
1633                 { 0x3021, 0x16 },
1634                 { 0x3022, 0x16 },
1635                 { 0x3023, 0x5a },
1636                 { 0x3024, 0x2d },
1637                 { 0x3025, 0x16 },
1638                 { 0x3026, 0x01 },
1639                 { 0x3028, 0xb0 },
1640                 { 0x3029, 0x04 },
1641                 { 0x302c, 0x88 },
1642                 { 0x302e, 0x13 },
1643                 { 0x3030, 0xdf },
1644                 { 0x3031, 0x05 },
1645         };
1646
1647         /* init remote controller */
1648         if (!dev->rc_active) {
1649                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1650                         ret = rtl28xxu_wr_reg(d, rc_nec_tab[i].reg,
1651                                         rc_nec_tab[i].val);
1652                         if (ret)
1653                                 goto err;
1654                 }
1655                 dev->rc_active = true;
1656         }
1657
1658         ret = rtl28xxu_rd_regs(d, SYS_IRRC_RP, buf, 5);
1659         if (ret)
1660                 goto err;
1661
1662         if (buf[4] & 0x01) {
1663                 enum rc_proto proto;
1664
1665                 if (buf[2] == (u8) ~buf[3]) {
1666                         if (buf[0] == (u8) ~buf[1]) {
1667                                 /* NEC standard (16 bit) */
1668                                 rc_code = RC_SCANCODE_NEC(buf[0], buf[2]);
1669                                 proto = RC_PROTO_NEC;
1670                         } else {
1671                                 /* NEC extended (24 bit) */
1672                                 rc_code = RC_SCANCODE_NECX(buf[0] << 8 | buf[1],
1673                                                            buf[2]);
1674                                 proto = RC_PROTO_NECX;
1675                         }
1676                 } else {
1677                         /* NEC full (32 bit) */
1678                         rc_code = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1679                                                     buf[2] << 8  | buf[3]);
1680                         proto = RC_PROTO_NEC32;
1681                 }
1682
1683                 rc_keydown(d->rc_dev, proto, rc_code, 0);
1684
1685                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1686                 if (ret)
1687                         goto err;
1688
1689                 /* repeated intentionally to avoid extra keypress */
1690                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1691                 if (ret)
1692                         goto err;
1693         }
1694
1695         return ret;
1696 err:
1697         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1698         return ret;
1699 }
1700
1701 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1702                 struct dvb_usb_rc *rc)
1703 {
1704         rc->map_name = RC_MAP_EMPTY;
1705         rc->allowed_protos = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
1706                                                         RC_PROTO_BIT_NEC32;
1707         rc->query = rtl2831u_rc_query;
1708         rc->interval = 400;
1709
1710         return 0;
1711 }
1712
1713 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1714 {
1715         int ret, i, len;
1716         struct rtl28xxu_dev *dev = d->priv;
1717         struct ir_raw_event ev;
1718         u8 buf[128];
1719         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1720                 {IR_RX_IF,               0x03, 0xff},
1721                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1722                 {IR_RX_CTRL,             0x80, 0xff},
1723         };
1724
1725         /* init remote controller */
1726         if (!dev->rc_active) {
1727                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1728                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1729                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1730                         {USB_CTRL,               0x20, 0x20},
1731                         {SYS_GPIO_DIR,           0x00, 0x08},
1732                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1733                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1734                         {IR_MAX_DURATION0,       0xd0, 0xff},
1735                         {IR_MAX_DURATION1,       0x07, 0xff},
1736                         {IR_IDLE_LEN0,           0xc0, 0xff},
1737                         {IR_IDLE_LEN1,           0x00, 0xff},
1738                         {IR_GLITCH_LEN,          0x03, 0xff},
1739                         {IR_RX_CLK,              0x09, 0xff},
1740                         {IR_RX_CFG,              0x1c, 0xff},
1741                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1742                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1743                         {IR_RX_CTRL,             0x80, 0xff},
1744                 };
1745
1746                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1747                         ret = rtl28xxu_wr_reg_mask(d, init_tab[i].reg,
1748                                         init_tab[i].val, init_tab[i].mask);
1749                         if (ret)
1750                                 goto err;
1751                 }
1752
1753                 dev->rc_active = true;
1754         }
1755
1756         ret = rtl28xxu_rd_reg(d, IR_RX_IF, &buf[0]);
1757         if (ret)
1758                 goto err;
1759
1760         if (buf[0] != 0x83)
1761                 goto exit;
1762
1763         ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
1764         if (ret)
1765                 goto err;
1766
1767         len = buf[0];
1768
1769         /* read raw code from hw */
1770         ret = rtl28xxu_rd_regs(d, IR_RX_BUF, buf, len);
1771         if (ret)
1772                 goto err;
1773
1774         /* let hw receive new code */
1775         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1776                 ret = rtl28xxu_wr_reg_mask(d, refresh_tab[i].reg,
1777                                 refresh_tab[i].val, refresh_tab[i].mask);
1778                 if (ret)
1779                         goto err;
1780         }
1781
1782         /* pass data to Kernel IR decoder */
1783         init_ir_raw_event(&ev);
1784
1785         for (i = 0; i < len; i++) {
1786                 ev.pulse = buf[i] >> 7;
1787                 ev.duration = 50800 * (buf[i] & 0x7f);
1788                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1789         }
1790
1791         /* 'flush' ir_raw_event_store_with_filter() */
1792         ir_raw_event_set_idle(d->rc_dev, true);
1793         ir_raw_event_handle(d->rc_dev);
1794 exit:
1795         return ret;
1796 err:
1797         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1798         return ret;
1799 }
1800
1801 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1802                 struct dvb_usb_rc *rc)
1803 {
1804         /* disable IR interrupts in order to avoid SDR sample loss */
1805         if (rtl28xxu_disable_rc)
1806                 return rtl28xxu_wr_reg(d, IR_RX_IE, 0x00);
1807
1808         /* load empty to enable rc */
1809         if (!rc->map_name)
1810                 rc->map_name = RC_MAP_EMPTY;
1811         rc->allowed_protos = RC_PROTO_BIT_ALL_IR_DECODER;
1812         rc->driver_type = RC_DRIVER_IR_RAW;
1813         rc->query = rtl2832u_rc_query;
1814         rc->interval = 200;
1815
1816         return 0;
1817 }
1818
1819 static int rtl28xxu_get_rc_config(struct dvb_usb_device *d,
1820                 struct dvb_usb_rc *rc)
1821 {
1822         struct rtl28xxu_dev *dev = d_to_priv(d);
1823
1824         if (dev->chip_id == CHIP_ID_RTL2831U)
1825                 return rtl2831u_get_rc_config(d, rc);
1826         else
1827                 return rtl2832u_get_rc_config(d, rc);
1828 }
1829 #else
1830 #define rtl28xxu_get_rc_config NULL
1831 #endif
1832
1833 static int rtl28xxu_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1834 {
1835         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1836
1837         if (dev->chip_id == CHIP_ID_RTL2831U) {
1838                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1839
1840                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1841         } else {
1842                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1843
1844                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1845         }
1846 }
1847
1848 static int rtl28xxu_pid_filter(struct dvb_usb_adapter *adap, int index,
1849                                u16 pid, int onoff)
1850 {
1851         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1852
1853         if (dev->chip_id == CHIP_ID_RTL2831U) {
1854                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1855
1856                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1857         } else {
1858                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1859
1860                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1861         }
1862 }
1863
1864 static const struct dvb_usb_device_properties rtl28xxu_props = {
1865         .driver_name = KBUILD_MODNAME,
1866         .owner = THIS_MODULE,
1867         .adapter_nr = adapter_nr,
1868         .size_of_priv = sizeof(struct rtl28xxu_dev),
1869
1870         .identify_state = rtl28xxu_identify_state,
1871         .power_ctrl = rtl28xxu_power_ctrl,
1872         .frontend_ctrl = rtl28xxu_frontend_ctrl,
1873         .i2c_algo = &rtl28xxu_i2c_algo,
1874         .read_config = rtl28xxu_read_config,
1875         .frontend_attach = rtl28xxu_frontend_attach,
1876         .frontend_detach = rtl28xxu_frontend_detach,
1877         .tuner_attach = rtl28xxu_tuner_attach,
1878         .tuner_detach = rtl28xxu_tuner_detach,
1879         .init = rtl28xxu_init,
1880         .get_rc_config = rtl28xxu_get_rc_config,
1881
1882         .num_adapters = 1,
1883         .adapter = {
1884                 {
1885                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1886                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1887
1888                         .pid_filter_count = 32,
1889                         .pid_filter_ctrl = rtl28xxu_pid_filter_ctrl,
1890                         .pid_filter = rtl28xxu_pid_filter,
1891
1892                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1893                 },
1894         },
1895 };
1896
1897 static const struct usb_device_id rtl28xxu_id_table[] = {
1898         /* RTL2831U devices: */
1899         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1900                 &rtl28xxu_props, "Realtek RTL2831U reference design", NULL) },
1901         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1902                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1903         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1904                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1905
1906         /* RTL2832U devices: */
1907         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1908                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1909         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1910                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1911         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1912                 &rtl28xxu_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1913         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1914                 &rtl28xxu_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1915         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1916                 &rtl28xxu_props, "TerraTec NOXON DAB Stick", NULL) },
1917         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1918                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1919         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1920                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1921         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1922                 &rtl28xxu_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1923         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1924                 &rtl28xxu_props, "Dexatek DK DVB-T Dongle", NULL) },
1925         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1926                 &rtl28xxu_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1927         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1928                 &rtl28xxu_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1929         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV2000DS_PLUS,
1930                 &rtl28xxu_props, "Leadtek WinFast DTV2000DS Plus", RC_MAP_LEADTEK_Y04G0051) },
1931         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1932                 &rtl28xxu_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1933         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1934                 &rtl28xxu_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1935         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1936                 &rtl28xxu_props, "TerraTec Cinergy T Stick+", NULL) },
1937         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1938                 &rtl28xxu_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1939         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1940                 &rtl28xxu_props, "GIGABYTE U7300", NULL) },
1941         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1942                 &rtl28xxu_props, "MSI DIGIVOX Micro HD", NULL) },
1943         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1944                 &rtl28xxu_props, "Compro VideoMate U620F", NULL) },
1945         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0650,
1946                 &rtl28xxu_props, "Compro VideoMate U650F", NULL) },
1947         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1948                 &rtl28xxu_props, "MaxMedia HU394-T", NULL) },
1949         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1950                 &rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1951         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1952                 &rtl28xxu_props, "Crypto ReDi PC 50 A", NULL) },
1953         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1954                 &rtl28xxu_props, "Genius TVGo DVB-T03", NULL) },
1955         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
1956                 &rtl28xxu_props, "Peak DVB-T USB", NULL) },
1957         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
1958                 &rtl28xxu_props, "Sveon STV20", NULL) },
1959         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV21,
1960                 &rtl28xxu_props, "Sveon STV21", NULL) },
1961         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
1962                 &rtl28xxu_props, "Sveon STV27", NULL) },
1963         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_TURBOX_DTT_2000,
1964                 &rtl28xxu_props, "TURBO-X Pure TV Tuner DTT-2000", NULL) },
1965
1966         /* RTL2832P devices: */
1967         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1968                 &rtl28xxu_props, "Astrometa DVB-T2", NULL) },
1969         { DVB_USB_DEVICE(0x5654, 0xca42,
1970                 &rtl28xxu_props, "GoTView MasterHD 3", NULL) },
1971         { }
1972 };
1973 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1974
1975 static struct usb_driver rtl28xxu_usb_driver = {
1976         .name = KBUILD_MODNAME,
1977         .id_table = rtl28xxu_id_table,
1978         .probe = dvb_usbv2_probe,
1979         .disconnect = dvb_usbv2_disconnect,
1980         .suspend = dvb_usbv2_suspend,
1981         .resume = dvb_usbv2_resume,
1982         .reset_resume = dvb_usbv2_reset_resume,
1983         .no_dynamic_id = 1,
1984         .soft_unbind = 1,
1985 };
1986
1987 module_usb_driver(rtl28xxu_usb_driver);
1988
1989 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1990 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1991 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1992 MODULE_LICENSE("GPL");