Pileus Git - ~andy/linux/blob - 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 #include "rtl2830.h"
  26 #include "rtl2832.h"
  27
  28 #include "qt1010.h"
  29 #include "mt2060.h"
  30 #include "mxl5005s.h"
  31 #include "fc0012.h"
  32 #include "fc0013.h"
  33 #include "e4000.h"
  34 #include "fc2580.h"
  35 #include "tua9001.h"
  36 #include "r820t.h"
  37
  38 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  39
  40 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  41 {
  42         int ret;
  43         unsigned int pipe;
  44         u8 requesttype;
  45         u8 *buf;
  46
  47         buf = kmalloc(req->size, GFP_KERNEL);
  48         if (!buf) {
  49                 ret = -ENOMEM;
  50                 goto err;
  51         }
  52
  53         if (req->index & CMD_WR_FLAG) {
  54                 /* write */
  55                 memcpy(buf, req->data, req->size);
  56                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  57                 pipe = usb_sndctrlpipe(d->udev, 0);
  58         } else {
  59                 /* read */
  60                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
  61                 pipe = usb_rcvctrlpipe(d->udev, 0);
  62         }
  63
  64         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  65                         req->index, buf, req->size, 1000);
  66
  67         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  68                         req->index, buf, req->size);
  69
  70         if (ret > 0)
  71                 ret = 0;
  72
  73         /* read request, copy returned data to return buf */
  74         if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  75                 memcpy(req->data, buf, req->size);
  76
  77         kfree(buf);
  78
  79         if (ret)
  80                 goto err;
  81
  82         return ret;
  83 err:
  84         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
  85         return ret;
  86 }
  87
  88 static int rtl28xx_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  89 {
  90         struct rtl28xxu_req req;
  91
  92         if (reg < 0x3000)
  93                 req.index = CMD_USB_WR;
  94         else if (reg < 0x4000)
  95                 req.index = CMD_SYS_WR;
  96         else
  97                 req.index = CMD_IR_WR;
  98
  99         req.value = reg;
 100         req.size = len;
 101         req.data = val;
 102
 103         return rtl28xxu_ctrl_msg(d, &req);
 104 }
 105
 106 static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 107 {
 108         struct rtl28xxu_req req;
 109
 110         if (reg < 0x3000)
 111                 req.index = CMD_USB_RD;
 112         else if (reg < 0x4000)
 113                 req.index = CMD_SYS_RD;
 114         else
 115                 req.index = CMD_IR_RD;
 116
 117         req.value = reg;
 118         req.size = len;
 119         req.data = val;
 120
 121         return rtl28xxu_ctrl_msg(d, &req);
 122 }
 123
 124 static int rtl28xx_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 125 {
 126         return rtl28xx_wr_regs(d, reg, &val, 1);
 127 }
 128
 129 static int rtl28xx_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 130 {
 131         return rtl2831_rd_regs(d, reg, val, 1);
 132 }
 133
 134 static int rtl28xx_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 135                 u8 mask)
 136 {
 137         int ret;
 138         u8 tmp;
 139
 140         /* no need for read if whole reg is written */
 141         if (mask != 0xff) {
 142                 ret = rtl28xx_rd_reg(d, reg, &tmp);
 143                 if (ret)
 144                         return ret;
 145
 146                 val &= mask;
 147                 tmp &= ~mask;
 148                 val |= tmp;
 149         }
 150
 151         return rtl28xx_wr_reg(d, reg, val);
 152 }
 153
 154 /* I2C */
 155 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 156         int num)
 157 {
 158         int ret;
 159         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 160         struct rtl28xxu_priv *priv = d->priv;
 161         struct rtl28xxu_req req;
 162
 163         /*
 164          * It is not known which are real I2C bus xfer limits, but testing
 165          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 166          * TODO: find out RTL2832U lens
 167          */
 168
 169         /*
 170          * I2C adapter logic looks rather complicated due to fact it handles
 171          * three different access methods. Those methods are;
 172          * 1) integrated demod access
 173          * 2) old I2C access
 174          * 3) new I2C access
 175          *
 176          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 177          * requests but there is two reasons why not use it always;
 178          * 1) It is most expensive, usually two USB messages are needed
 179          * 2) At least RTL2831U does not support it
 180          *
 181          * Method 3 is needed in case of I2C write+read (typical register read)
 182          * where write is more than one byte.
 183          */
 184
 185         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 186                 return -EAGAIN;
 187
 188         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 189                 (msg[1].flags & I2C_M_RD)) {
 190                 if (msg[0].len > 24 || msg[1].len > 24) {
 191                         /* TODO: check msg[0].len max */
 192                         ret = -EOPNOTSUPP;
 193                         goto err_mutex_unlock;
 194                 } else if (msg[0].addr == 0x10) {
 195                         /* method 1 - integrated demod */
 196                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 197                         req.index = CMD_DEMOD_RD | priv->page;
 198                         req.size = msg[1].len;
 199                         req.data = &msg[1].buf[0];
 200                         ret = rtl28xxu_ctrl_msg(d, &req);
 201                 } else if (msg[0].len < 2) {
 202                         /* method 2 - old I2C */
 203                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 204                         req.index = CMD_I2C_RD;
 205                         req.size = msg[1].len;
 206                         req.data = &msg[1].buf[0];
 207                         ret = rtl28xxu_ctrl_msg(d, &req);
 208                 } else {
 209                         /* method 3 - new I2C */
 210                         req.value = (msg[0].addr << 1);
 211                         req.index = CMD_I2C_DA_WR;
 212                         req.size = msg[0].len;
 213                         req.data = msg[0].buf;
 214                         ret = rtl28xxu_ctrl_msg(d, &req);
 215                         if (ret)
 216                                 goto err_mutex_unlock;
 217
 218                         req.value = (msg[0].addr << 1);
 219                         req.index = CMD_I2C_DA_RD;
 220                         req.size = msg[1].len;
 221                         req.data = msg[1].buf;
 222                         ret = rtl28xxu_ctrl_msg(d, &req);
 223                 }
 224         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 225                 if (msg[0].len > 22) {
 226                         /* TODO: check msg[0].len max */
 227                         ret = -EOPNOTSUPP;
 228                         goto err_mutex_unlock;
 229                 } else if (msg[0].addr == 0x10) {
 230                         /* method 1 - integrated demod */
 231                         if (msg[0].buf[0] == 0x00) {
 232                                 /* save demod page for later demod access */
 233                                 priv->page = msg[0].buf[1];
 234                                 ret = 0;
 235                         } else {
 236                                 req.value = (msg[0].buf[0] << 8) |
 237                                         (msg[0].addr << 1);
 238                                 req.index = CMD_DEMOD_WR | priv->page;
 239                                 req.size = msg[0].len-1;
 240                                 req.data = &msg[0].buf[1];
 241                                 ret = rtl28xxu_ctrl_msg(d, &req);
 242                         }
 243                 } else if (msg[0].len < 23) {
 244                         /* method 2 - old I2C */
 245                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 246                         req.index = CMD_I2C_WR;
 247                         req.size = msg[0].len-1;
 248                         req.data = &msg[0].buf[1];
 249                         ret = rtl28xxu_ctrl_msg(d, &req);
 250                 } else {
 251                         /* method 3 - new I2C */
 252                         req.value = (msg[0].addr << 1);
 253                         req.index = CMD_I2C_DA_WR;
 254                         req.size = msg[0].len;
 255                         req.data = msg[0].buf;
 256                         ret = rtl28xxu_ctrl_msg(d, &req);
 257                 }
 258         } else {
 259                 ret = -EINVAL;
 260         }
 261
 262 err_mutex_unlock:
 263         mutex_unlock(&d->i2c_mutex);
 264
 265         return ret ? ret : num;
 266 }
 267
 268 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 269 {
 270         return I2C_FUNC_I2C;
 271 }
 272
 273 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 274         .master_xfer   = rtl28xxu_i2c_xfer,
 275         .functionality = rtl28xxu_i2c_func,
 276 };
 277
 278 static int rtl2831u_read_config(struct dvb_usb_device *d)
 279 {
 280         struct rtl28xxu_priv *priv = d_to_priv(d);
 281         int ret;
 282         u8 buf[1];
 283         /* open RTL2831U/RTL2830 I2C gate */
 284         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 285         /* tuner probes */
 286         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 287         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 288
 289         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 290
 291         /*
 292          * RTL2831U GPIOs
 293          * =========================================================
 294          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 295          * GPIO2 | LED     | 0 off | 1 on  |
 296          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 297          */
 298
 299         /* GPIO direction */
 300         ret = rtl28xx_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 301         if (ret)
 302                 goto err;
 303
 304         /* enable as output GPIO0, GPIO2, GPIO4 */
 305         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 306         if (ret)
 307                 goto err;
 308
 309         /*
 310          * Probe used tuner. We need to know used tuner before demod attach
 311          * since there is some demod params needed to set according to tuner.
 312          */
 313
 314         /* demod needs some time to wake up */
 315         msleep(20);
 316
 317         priv->tuner_name = "NONE";
 318
 319         /* open demod I2C gate */
 320         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 321         if (ret)
 322                 goto err;
 323
 324         /* check QT1010 ID(?) register; reg=0f val=2c */
 325         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 326         if (ret == 0 && buf[0] == 0x2c) {
 327                 priv->tuner = TUNER_RTL2830_QT1010;
 328                 priv->tuner_name = "QT1010";
 329                 goto found;
 330         }
 331
 332         /* open demod I2C gate */
 333         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 334         if (ret)
 335                 goto err;
 336
 337         /* check MT2060 ID register; reg=00 val=63 */
 338         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 339         if (ret == 0 && buf[0] == 0x63) {
 340                 priv->tuner = TUNER_RTL2830_MT2060;
 341                 priv->tuner_name = "MT2060";
 342                 goto found;
 343         }
 344
 345         /* assume MXL5005S */
 346         priv->tuner = TUNER_RTL2830_MXL5005S;
 347         priv->tuner_name = "MXL5005S";
 348         goto found;
 349
 350 found:
 351         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 352
 353         return 0;
 354 err:
 355         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 356         return ret;
 357 }
 358
 359 static int rtl2832u_read_config(struct dvb_usb_device *d)
 360 {
 361         struct rtl28xxu_priv *priv = d_to_priv(d);
 362         int ret;
 363         u8 buf[2];
 364         /* open RTL2832U/RTL2832 I2C gate */
 365         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 366         /* close RTL2832U/RTL2832 I2C gate */
 367         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 368         /* tuner probes */
 369         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 370         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 371         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 372         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 373         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 374         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 375         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 376         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 377         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 378         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 379         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 380         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 381
 382         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 383
 384         /* enable GPIO3 and GPIO6 as output */
 385         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 386         if (ret)
 387                 goto err;
 388
 389         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 390         if (ret)
 391                 goto err;
 392
 393         /*
 394          * Probe used tuner. We need to know used tuner before demod attach
 395          * since there is some demod params needed to set according to tuner.
 396          */
 397
 398         /* open demod I2C gate */
 399         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 400         if (ret)
 401                 goto err;
 402
 403         priv->tuner_name = "NONE";
 404
 405         /* check FC0012 ID register; reg=00 val=a1 */
 406         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 407         if (ret == 0 && buf[0] == 0xa1) {
 408                 priv->tuner = TUNER_RTL2832_FC0012;
 409                 priv->tuner_name = "FC0012";
 410                 goto found;
 411         }
 412
 413         /* check FC0013 ID register; reg=00 val=a3 */
 414         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 415         if (ret == 0 && buf[0] == 0xa3) {
 416                 priv->tuner = TUNER_RTL2832_FC0013;
 417                 priv->tuner_name = "FC0013";
 418                 goto found;
 419         }
 420
 421         /* check MT2266 ID register; reg=00 val=85 */
 422         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 423         if (ret == 0 && buf[0] == 0x85) {
 424                 priv->tuner = TUNER_RTL2832_MT2266;
 425                 priv->tuner_name = "MT2266";
 426                 goto found;
 427         }
 428
 429         /* check FC2580 ID register; reg=01 val=56 */
 430         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 431         if (ret == 0 && buf[0] == 0x56) {
 432                 priv->tuner = TUNER_RTL2832_FC2580;
 433                 priv->tuner_name = "FC2580";
 434                 goto found;
 435         }
 436
 437         /* check MT2063 ID register; reg=00 val=9e || 9c */
 438         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 439         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 440                 priv->tuner = TUNER_RTL2832_MT2063;
 441                 priv->tuner_name = "MT2063";
 442                 goto found;
 443         }
 444
 445         /* check MAX3543 ID register; reg=00 val=38 */
 446         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 447         if (ret == 0 && buf[0] == 0x38) {
 448                 priv->tuner = TUNER_RTL2832_MAX3543;
 449                 priv->tuner_name = "MAX3543";
 450                 goto found;
 451         }
 452
 453         /* check TUA9001 ID register; reg=7e val=2328 */
 454         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 455         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 456                 priv->tuner = TUNER_RTL2832_TUA9001;
 457                 priv->tuner_name = "TUA9001";
 458                 goto found;
 459         }
 460
 461         /* check MXL5007R ID register; reg=d9 val=14 */
 462         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 463         if (ret == 0 && buf[0] == 0x14) {
 464                 priv->tuner = TUNER_RTL2832_MXL5007T;
 465                 priv->tuner_name = "MXL5007T";
 466                 goto found;
 467         }
 468
 469         /* check E4000 ID register; reg=02 val=40 */
 470         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 471         if (ret == 0 && buf[0] == 0x40) {
 472                 priv->tuner = TUNER_RTL2832_E4000;
 473                 priv->tuner_name = "E4000";
 474                 goto found;
 475         }
 476
 477         /* check TDA18272 ID register; reg=00 val=c760  */
 478         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 479         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 480                 priv->tuner = TUNER_RTL2832_TDA18272;
 481                 priv->tuner_name = "TDA18272";
 482                 goto found;
 483         }
 484
 485         /* check R820T ID register; reg=00 val=69 */
 486         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 487         if (ret == 0 && buf[0] == 0x69) {
 488                 priv->tuner = TUNER_RTL2832_R820T;
 489                 priv->tuner_name = "R820T";
 490                 goto found;
 491         }
 492
 493         /* check R828D ID register; reg=00 val=69 */
 494         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 495         if (ret == 0 && buf[0] == 0x69) {
 496                 priv->tuner = TUNER_RTL2832_R828D;
 497                 priv->tuner_name = "R828D";
 498                 goto found;
 499         }
 500
 501
 502 found:
 503         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 504
 505         /* close demod I2C gate */
 506         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 507         if (ret < 0)
 508                 goto err;
 509
 510         return 0;
 511 err:
 512         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 513         return ret;
 514 }
 515
 516 static struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
 517         .i2c_addr = 0x10, /* 0x20 */
 518         .xtal = 28800000,
 519         .ts_mode = 0,
 520         .spec_inv = 1,
 521         .vtop = 0x20,
 522         .krf = 0x04,
 523         .agc_targ_val = 0x2d,
 524
 525 };
 526
 527 static struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
 528         .i2c_addr = 0x10, /* 0x20 */
 529         .xtal = 28800000,
 530         .ts_mode = 0,
 531         .spec_inv = 1,
 532         .vtop = 0x20,
 533         .krf = 0x04,
 534         .agc_targ_val = 0x2d,
 535 };
 536
 537 static struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
 538         .i2c_addr = 0x10, /* 0x20 */
 539         .xtal = 28800000,
 540         .ts_mode = 0,
 541         .spec_inv = 0,
 542         .vtop = 0x3f,
 543         .krf = 0x04,
 544         .agc_targ_val = 0x3e,
 545 };
 546
 547 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 548 {
 549         struct dvb_usb_device *d = adap_to_d(adap);
 550         struct rtl28xxu_priv *priv = d_to_priv(d);
 551         struct rtl2830_config *rtl2830_config;
 552         int ret;
 553
 554         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 555
 556         switch (priv->tuner) {
 557         case TUNER_RTL2830_QT1010:
 558                 rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
 559                 break;
 560         case TUNER_RTL2830_MT2060:
 561                 rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
 562                 break;
 563         case TUNER_RTL2830_MXL5005S:
 564                 rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
 565                 break;
 566         default:
 567                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 568                                 KBUILD_MODNAME, priv->tuner_name);
 569                 ret = -ENODEV;
 570                 goto err;
 571         }
 572
 573         /* attach demodulator */
 574         adap->fe[0] = dvb_attach(rtl2830_attach, rtl2830_config, &d->i2c_adap);
 575         if (!adap->fe[0]) {
 576                 ret = -ENODEV;
 577                 goto err;
 578         }
 579
 580         return 0;
 581 err:
 582         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 583         return ret;
 584 }
 585
 586 static struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = {
 587         .i2c_addr = 0x10, /* 0x20 */
 588         .xtal = 28800000,
 589         .if_dvbt = 0,
 590         .tuner = TUNER_RTL2832_FC0012
 591 };
 592
 593 static struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
 594         .i2c_addr = 0x10, /* 0x20 */
 595         .xtal = 28800000,
 596         .if_dvbt = 0,
 597         .tuner = TUNER_RTL2832_FC0013
 598 };
 599
 600 static struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
 601         .i2c_addr = 0x10, /* 0x20 */
 602         .xtal = 28800000,
 603         .tuner = TUNER_RTL2832_TUA9001,
 604 };
 605
 606 static struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
 607         .i2c_addr = 0x10, /* 0x20 */
 608         .xtal = 28800000,
 609         .tuner = TUNER_RTL2832_E4000,
 610 };
 611
 612 static struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
 613         .i2c_addr = 0x10,
 614         .xtal = 28800000,
 615         .tuner = TUNER_RTL2832_R820T,
 616 };
 617
 618 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 619                 int cmd, int arg)
 620 {
 621         int ret;
 622         u8 val;
 623
 624         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 625
 626         switch (cmd) {
 627         case FC_FE_CALLBACK_VHF_ENABLE:
 628                 /* set output values */
 629                 ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 630                 if (ret)
 631                         goto err;
 632
 633                 if (arg)
 634                         val &= 0xbf; /* set GPIO6 low */
 635                 else
 636                         val |= 0x40; /* set GPIO6 high */
 637
 638
 639                 ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 640                 if (ret)
 641                         goto err;
 642                 break;
 643         default:
 644                 ret = -EINVAL;
 645                 goto err;
 646         }
 647         return 0;
 648 err:
 649         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 650         return ret;
 651 }
 652
 653 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 654                 int cmd, int arg)
 655 {
 656         int ret;
 657         u8 val;
 658
 659         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 660
 661         /*
 662          * CEN     always enabled by hardware wiring
 663          * RESETN  GPIO4
 664          * RXEN    GPIO1
 665          */
 666
 667         switch (cmd) {
 668         case TUA9001_CMD_RESETN:
 669                 if (arg)
 670                         val = (1 << 4);
 671                 else
 672                         val = (0 << 4);
 673
 674                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 675                 if (ret)
 676                         goto err;
 677                 break;
 678         case TUA9001_CMD_RXEN:
 679                 if (arg)
 680                         val = (1 << 1);
 681                 else
 682                         val = (0 << 1);
 683
 684                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 685                 if (ret)
 686                         goto err;
 687                 break;
 688         }
 689
 690         return 0;
 691 err:
 692         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 693         return ret;
 694 }
 695
 696 static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 697 {
 698         struct rtl28xxu_priv *priv = d->priv;
 699
 700         switch (priv->tuner) {
 701         case TUNER_RTL2832_FC0012:
 702                 return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 703         case TUNER_RTL2832_TUA9001:
 704                 return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 705         default:
 706                 break;
 707         }
 708
 709         return 0;
 710 }
 711
 712 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 713                 int cmd, int arg)
 714 {
 715         struct i2c_adapter *adap = adapter_priv;
 716         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 717
 718         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 719                         __func__, component, cmd, arg);
 720
 721         switch (component) {
 722         case DVB_FRONTEND_COMPONENT_TUNER:
 723                 return rtl2832u_tuner_callback(d, cmd, arg);
 724         default:
 725                 break;
 726         }
 727
 728         return 0;
 729 }
 730
 731 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 732 {
 733         int ret;
 734         struct dvb_usb_device *d = adap_to_d(adap);
 735         struct rtl28xxu_priv *priv = d_to_priv(d);
 736         struct rtl2832_config *rtl2832_config;
 737
 738         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 739
 740         switch (priv->tuner) {
 741         case TUNER_RTL2832_FC0012:
 742                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 743                 break;
 744         case TUNER_RTL2832_FC0013:
 745                 rtl2832_config = &rtl28xxu_rtl2832_fc0013_config;
 746                 break;
 747         case TUNER_RTL2832_FC2580:
 748                 /* FIXME: do not abuse fc0012 settings */
 749                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 750                 break;
 751         case TUNER_RTL2832_TUA9001:
 752                 rtl2832_config = &rtl28xxu_rtl2832_tua9001_config;
 753                 break;
 754         case TUNER_RTL2832_E4000:
 755                 rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
 756                 break;
 757         case TUNER_RTL2832_R820T:
 758         case TUNER_RTL2832_R828D:
 759                 rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
 760                 break;
 761         default:
 762                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 763                                 KBUILD_MODNAME, priv->tuner_name);
 764                 ret = -ENODEV;
 765                 goto err;
 766         }
 767
 768         /* attach demodulator */
 769         adap->fe[0] = dvb_attach(rtl2832_attach, rtl2832_config, &d->i2c_adap);
 770         if (!adap->fe[0]) {
 771                 ret = -ENODEV;
 772                 goto err;
 773         }
 774
 775         /* set fe callback */
 776         adap->fe[0]->callback = rtl2832u_frontend_callback;
 777
 778         return 0;
 779 err:
 780         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 781         return ret;
 782 }
 783
 784 static struct qt1010_config rtl28xxu_qt1010_config = {
 785         .i2c_address = 0x62, /* 0xc4 */
 786 };
 787
 788 static struct mt2060_config rtl28xxu_mt2060_config = {
 789         .i2c_address = 0x60, /* 0xc0 */
 790         .clock_out = 0,
 791 };
 792
 793 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
 794         .i2c_address     = 0x63, /* 0xc6 */
 795         .if_freq         = IF_FREQ_4570000HZ,
 796         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 797         .agc_mode        = MXL_SINGLE_AGC,
 798         .tracking_filter = MXL_TF_C_H,
 799         .rssi_enable     = MXL_RSSI_ENABLE,
 800         .cap_select      = MXL_CAP_SEL_ENABLE,
 801         .div_out         = MXL_DIV_OUT_4,
 802         .clock_out       = MXL_CLOCK_OUT_DISABLE,
 803         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 804         .top             = MXL5005S_TOP_25P2,
 805         .mod_mode        = MXL_DIGITAL_MODE,
 806         .if_mode         = MXL_ZERO_IF,
 807         .AgcMasterByte   = 0x00,
 808 };
 809
 810 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
 811 {
 812         int ret;
 813         struct dvb_usb_device *d = adap_to_d(adap);
 814         struct rtl28xxu_priv *priv = d_to_priv(d);
 815         struct i2c_adapter *rtl2830_tuner_i2c;
 816         struct dvb_frontend *fe;
 817
 818         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 819
 820         /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
 821         rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe[0]);
 822
 823         switch (priv->tuner) {
 824         case TUNER_RTL2830_QT1010:
 825                 fe = dvb_attach(qt1010_attach, adap->fe[0],
 826                                 rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
 827                 break;
 828         case TUNER_RTL2830_MT2060:
 829                 fe = dvb_attach(mt2060_attach, adap->fe[0],
 830                                 rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
 831                                 1220);
 832                 break;
 833         case TUNER_RTL2830_MXL5005S:
 834                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
 835                                 rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
 836                 break;
 837         default:
 838                 fe = NULL;
 839                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 840                                 priv->tuner);
 841         }
 842
 843         if (fe == NULL) {
 844                 ret = -ENODEV;
 845                 goto err;
 846         }
 847
 848         return 0;
 849 err:
 850         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 851         return ret;
 852 }
 853
 854 static const struct e4000_config rtl2832u_e4000_config = {
 855         .i2c_addr = 0x64,
 856         .clock = 28800000,
 857 };
 858
 859 static const struct fc2580_config rtl2832u_fc2580_config = {
 860         .i2c_addr = 0x56,
 861         .clock = 16384000,
 862 };
 863
 864 static struct tua9001_config rtl2832u_tua9001_config = {
 865         .i2c_addr = 0x60,
 866 };
 867
 868 static const struct fc0012_config rtl2832u_fc0012_config = {
 869         .i2c_address = 0x63, /* 0xc6 >> 1 */
 870         .xtal_freq = FC_XTAL_28_8_MHZ,
 871 };
 872
 873 static const struct r820t_config rtl2832u_r820t_config = {
 874         .i2c_addr = 0x1a,
 875         .xtal = 28800000,
 876         .max_i2c_msg_len = 2,
 877         .rafael_chip = CHIP_R820T,
 878 };
 879
 880 static const struct r820t_config rtl2832u_r828d_config = {
 881         .i2c_addr = 0x3a,
 882         .xtal = 16000000,
 883         .max_i2c_msg_len = 2,
 884         .rafael_chip = CHIP_R828D,
 885 };
 886
 887 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 888 {
 889         int ret;
 890         struct dvb_usb_device *d = adap_to_d(adap);
 891         struct rtl28xxu_priv *priv = d_to_priv(d);
 892         struct dvb_frontend *fe;
 893
 894         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 895
 896         switch (priv->tuner) {
 897         case TUNER_RTL2832_FC0012:
 898                 fe = dvb_attach(fc0012_attach, adap->fe[0],
 899                         &d->i2c_adap, &rtl2832u_fc0012_config);
 900
 901                 /* since fc0012 includs reading the signal strength delegate
 902                  * that to the tuner driver */
 903                 adap->fe[0]->ops.read_signal_strength =
 904                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 905                 return 0;
 906                 break;
 907         case TUNER_RTL2832_FC0013:
 908                 fe = dvb_attach(fc0013_attach, adap->fe[0],
 909                         &d->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
 910
 911                 /* fc0013 also supports signal strength reading */
 912                 adap->fe[0]->ops.read_signal_strength =
 913                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 914                 return 0;
 915         case TUNER_RTL2832_E4000:
 916                 fe = dvb_attach(e4000_attach, adap->fe[0], &d->i2c_adap,
 917                                 &rtl2832u_e4000_config);
 918                 break;
 919         case TUNER_RTL2832_FC2580:
 920                 fe = dvb_attach(fc2580_attach, adap->fe[0], &d->i2c_adap,
 921                                 &rtl2832u_fc2580_config);
 922                 break;
 923         case TUNER_RTL2832_TUA9001:
 924                 /* enable GPIO1 and GPIO4 as output */
 925                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
 926                 if (ret)
 927                         goto err;
 928
 929                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
 930                 if (ret)
 931                         goto err;
 932
 933                 fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
 934                                 &rtl2832u_tua9001_config);
 935                 break;
 936         case TUNER_RTL2832_R820T:
 937                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 938                                 &rtl2832u_r820t_config);
 939
 940                 /* Use tuner to get the signal strength */
 941                 adap->fe[0]->ops.read_signal_strength =
 942                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 943                 break;
 944         case TUNER_RTL2832_R828D:
 945                 /* power off mn88472 demod on GPIO0 */
 946                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
 947                 if (ret)
 948                         goto err;
 949
 950                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 951                 if (ret)
 952                         goto err;
 953
 954                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 955                 if (ret)
 956                         goto err;
 957
 958                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 959                                 &rtl2832u_r828d_config);
 960
 961                 /* Use tuner to get the signal strength */
 962                 adap->fe[0]->ops.read_signal_strength =
 963                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 964                 break;
 965         default:
 966                 fe = NULL;
 967                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 968                                 priv->tuner);
 969         }
 970
 971         if (fe == NULL) {
 972                 ret = -ENODEV;
 973                 goto err;
 974         }
 975
 976         return 0;
 977 err:
 978         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 979         return ret;
 980 }
 981
 982 static int rtl28xxu_init(struct dvb_usb_device *d)
 983 {
 984         int ret;
 985         u8 val;
 986
 987         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 988
 989         /* init USB endpoints */
 990         ret = rtl28xx_rd_reg(d, USB_SYSCTL_0, &val);
 991         if (ret)
 992                 goto err;
 993
 994         /* enable DMA and Full Packet Mode*/
 995         val |= 0x09;
 996         ret = rtl28xx_wr_reg(d, USB_SYSCTL_0, val);
 997         if (ret)
 998                 goto err;
 999
1000         /* set EPA maximum packet size to 0x0200 */
1001         ret = rtl28xx_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1002         if (ret)
1003                 goto err;
1004
1005         /* change EPA FIFO length */
1006         ret = rtl28xx_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1007         if (ret)
1008                 goto err;
1009
1010         return ret;
1011 err:
1012         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1013         return ret;
1014 }
1015
1016 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1017 {
1018         int ret;
1019         u8 gpio, sys0, epa_ctl[2];
1020
1021         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1022
1023         /* demod adc */
1024         ret = rtl28xx_rd_reg(d, SYS_SYS0, &sys0);
1025         if (ret)
1026                 goto err;
1027
1028         /* tuner power, read GPIOs */
1029         ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1030         if (ret)
1031                 goto err;
1032
1033         dev_dbg(&d->udev->dev, "%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1034                         sys0, gpio);
1035
1036         if (onoff) {
1037                 gpio |= 0x01; /* GPIO0 = 1 */
1038                 gpio &= (~0x10); /* GPIO4 = 0 */
1039                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1040                 sys0 = sys0 & 0x0f;
1041                 sys0 |= 0xe0;
1042                 epa_ctl[0] = 0x00; /* clear stall */
1043                 epa_ctl[1] = 0x00; /* clear reset */
1044         } else {
1045                 gpio &= (~0x01); /* GPIO0 = 0 */
1046                 gpio |= 0x10; /* GPIO4 = 1 */
1047                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1048                 sys0 = sys0 & (~0xc0);
1049                 epa_ctl[0] = 0x10; /* set stall */
1050                 epa_ctl[1] = 0x02; /* set reset */
1051         }
1052
1053         dev_dbg(&d->udev->dev, "%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1054                         sys0, gpio);
1055
1056         /* demod adc */
1057         ret = rtl28xx_wr_reg(d, SYS_SYS0, sys0);
1058         if (ret)
1059                 goto err;
1060
1061         /* tuner power, write GPIOs */
1062         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1063         if (ret)
1064                 goto err;
1065
1066         /* streaming EP: stall & reset */
1067         ret = rtl28xx_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1068         if (ret)
1069                 goto err;
1070
1071         if (onoff)
1072                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1073
1074         return ret;
1075 err:
1076         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1077         return ret;
1078 }
1079
1080 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1081 {
1082         int ret;
1083
1084         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1085
1086         if (onoff) {
1087                 /* GPIO3=1, GPIO4=0 */
1088                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1089                 if (ret)
1090                         goto err;
1091
1092                 /* suspend? */
1093                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1094                 if (ret)
1095                         goto err;
1096
1097                 /* enable PLL */
1098                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1099                 if (ret)
1100                         goto err;
1101
1102                 /* disable reset */
1103                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1104                 if (ret)
1105                         goto err;
1106
1107                 mdelay(5);
1108
1109                 /* enable ADC */
1110                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x48, 0x48);
1111                 if (ret)
1112                         goto err;
1113
1114                 /* streaming EP: clear stall & reset */
1115                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1116                 if (ret)
1117                         goto err;
1118
1119                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1120                 if (ret)
1121                         goto err;
1122         } else {
1123                 /* GPIO4=1 */
1124                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1125                 if (ret)
1126                         goto err;
1127
1128                 /* disable ADC */
1129                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x48);
1130                 if (ret)
1131                         goto err;
1132
1133                 /* disable PLL */
1134                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1135                 if (ret)
1136                         goto err;
1137
1138                 /* streaming EP: set stall & reset */
1139                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1140                 if (ret)
1141                         goto err;
1142         }
1143
1144         return ret;
1145 err:
1146         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1147         return ret;
1148 }
1149
1150 #if IS_ENABLED(CONFIG_RC_CORE)
1151 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1152 {
1153         int ret, i;
1154         struct rtl28xxu_priv *priv = d->priv;
1155         u8 buf[5];
1156         u32 rc_code;
1157         struct rtl28xxu_reg_val rc_nec_tab[] = {
1158                 { 0x3033, 0x80 },
1159                 { 0x3020, 0x43 },
1160                 { 0x3021, 0x16 },
1161                 { 0x3022, 0x16 },
1162                 { 0x3023, 0x5a },
1163                 { 0x3024, 0x2d },
1164                 { 0x3025, 0x16 },
1165                 { 0x3026, 0x01 },
1166                 { 0x3028, 0xb0 },
1167                 { 0x3029, 0x04 },
1168                 { 0x302c, 0x88 },
1169                 { 0x302e, 0x13 },
1170                 { 0x3030, 0xdf },
1171                 { 0x3031, 0x05 },
1172         };
1173
1174         /* init remote controller */
1175         if (!priv->rc_active) {
1176                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1177                         ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg,
1178                                         rc_nec_tab[i].val);
1179                         if (ret)
1180                                 goto err;
1181                 }
1182                 priv->rc_active = true;
1183         }
1184
1185         ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
1186         if (ret)
1187                 goto err;
1188
1189         if (buf[4] & 0x01) {
1190                 if (buf[2] == (u8) ~buf[3]) {
1191                         if (buf[0] == (u8) ~buf[1]) {
1192                                 /* NEC standard (16 bit) */
1193                                 rc_code = buf[0] << 8 | buf[2];
1194                         } else {
1195                                 /* NEC extended (24 bit) */
1196                                 rc_code = buf[0] << 16 |
1197                                                 buf[1] << 8 | buf[2];
1198                         }
1199                 } else {
1200                         /* NEC full (32 bit) */
1201                         rc_code = buf[0] << 24 | buf[1] << 16 |
1202                                         buf[2] << 8 | buf[3];
1203                 }
1204
1205                 rc_keydown(d->rc_dev, rc_code, 0);
1206
1207                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1208                 if (ret)
1209                         goto err;
1210
1211                 /* repeated intentionally to avoid extra keypress */
1212                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1213                 if (ret)
1214                         goto err;
1215         }
1216
1217         return ret;
1218 err:
1219         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1220         return ret;
1221 }
1222
1223 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1224                 struct dvb_usb_rc *rc)
1225 {
1226         rc->map_name = RC_MAP_EMPTY;
1227         rc->allowed_protos = RC_BIT_NEC;
1228         rc->query = rtl2831u_rc_query;
1229         rc->interval = 400;
1230
1231         return 0;
1232 }
1233
1234 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1235 {
1236         int ret, i, len;
1237         struct rtl28xxu_priv *priv = d->priv;
1238         struct ir_raw_event ev;
1239         u8 buf[128];
1240         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1241                 {IR_RX_IF,               0x03, 0xff},
1242                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1243                 {IR_RX_CTRL,             0x80, 0xff},
1244         };
1245
1246         /* init remote controller */
1247         if (!priv->rc_active) {
1248                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1249                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1250                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1251                         {USB_CTRL,               0x20, 0x20},
1252                         {SYS_GPIO_DIR,           0x00, 0x08},
1253                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1254                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1255                         {IR_MAX_DURATION0,       0xd0, 0xff},
1256                         {IR_MAX_DURATION1,       0x07, 0xff},
1257                         {IR_IDLE_LEN0,           0xc0, 0xff},
1258                         {IR_IDLE_LEN1,           0x00, 0xff},
1259                         {IR_GLITCH_LEN,          0x03, 0xff},
1260                         {IR_RX_CLK,              0x09, 0xff},
1261                         {IR_RX_CFG,              0x1c, 0xff},
1262                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1263                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1264                         {IR_RX_CTRL,             0x80, 0xff},
1265                 };
1266
1267                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1268                         ret = rtl28xx_wr_reg_mask(d, init_tab[i].reg,
1269                                         init_tab[i].val, init_tab[i].mask);
1270                         if (ret)
1271                                 goto err;
1272                 }
1273
1274                 priv->rc_active = true;
1275         }
1276
1277         ret = rtl28xx_rd_reg(d, IR_RX_IF, &buf[0]);
1278         if (ret)
1279                 goto err;
1280
1281         if (buf[0] != 0x83)
1282                 goto exit;
1283
1284         ret = rtl28xx_rd_reg(d, IR_RX_BC, &buf[0]);
1285         if (ret)
1286                 goto err;
1287
1288         len = buf[0];
1289
1290         /* read raw code from hw */
1291         ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
1292         if (ret)
1293                 goto err;
1294
1295         /* let hw receive new code */
1296         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1297                 ret = rtl28xx_wr_reg_mask(d, refresh_tab[i].reg,
1298                                 refresh_tab[i].val, refresh_tab[i].mask);
1299                 if (ret)
1300                         goto err;
1301         }
1302
1303         /* pass data to Kernel IR decoder */
1304         init_ir_raw_event(&ev);
1305
1306         for (i = 0; i < len; i++) {
1307                 ev.pulse = buf[i] >> 7;
1308                 ev.duration = 50800 * (buf[i] & 0x7f);
1309                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1310         }
1311
1312         /* 'flush' ir_raw_event_store_with_filter() */
1313         ir_raw_event_set_idle(d->rc_dev, true);
1314         ir_raw_event_handle(d->rc_dev);
1315 exit:
1316         return ret;
1317 err:
1318         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1319         return ret;
1320 }
1321
1322 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1323                 struct dvb_usb_rc *rc)
1324 {
1325         /* load empty to enable rc */
1326         if (!rc->map_name)
1327                 rc->map_name = RC_MAP_EMPTY;
1328         rc->allowed_protos = RC_BIT_ALL;
1329         rc->driver_type = RC_DRIVER_IR_RAW;
1330         rc->query = rtl2832u_rc_query;
1331         rc->interval = 400;
1332
1333         return 0;
1334 }
1335 #else
1336 #define rtl2831u_get_rc_config NULL
1337 #define rtl2832u_get_rc_config NULL
1338 #endif
1339
1340 static const struct dvb_usb_device_properties rtl2831u_props = {
1341         .driver_name = KBUILD_MODNAME,
1342         .owner = THIS_MODULE,
1343         .adapter_nr = adapter_nr,
1344         .size_of_priv = sizeof(struct rtl28xxu_priv),
1345
1346         .power_ctrl = rtl2831u_power_ctrl,
1347         .i2c_algo = &rtl28xxu_i2c_algo,
1348         .read_config = rtl2831u_read_config,
1349         .frontend_attach = rtl2831u_frontend_attach,
1350         .tuner_attach = rtl2831u_tuner_attach,
1351         .init = rtl28xxu_init,
1352         .get_rc_config = rtl2831u_get_rc_config,
1353
1354         .num_adapters = 1,
1355         .adapter = {
1356                 {
1357                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1358                 },
1359         },
1360 };
1361
1362 static const struct dvb_usb_device_properties rtl2832u_props = {
1363         .driver_name = KBUILD_MODNAME,
1364         .owner = THIS_MODULE,
1365         .adapter_nr = adapter_nr,
1366         .size_of_priv = sizeof(struct rtl28xxu_priv),
1367
1368         .power_ctrl = rtl2832u_power_ctrl,
1369         .i2c_algo = &rtl28xxu_i2c_algo,
1370         .read_config = rtl2832u_read_config,
1371         .frontend_attach = rtl2832u_frontend_attach,
1372         .tuner_attach = rtl2832u_tuner_attach,
1373         .init = rtl28xxu_init,
1374         .get_rc_config = rtl2832u_get_rc_config,
1375
1376         .num_adapters = 1,
1377         .adapter = {
1378                 {
1379                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1380                 },
1381         },
1382 };
1383
1384 static const struct usb_device_id rtl28xxu_id_table[] = {
1385         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1386                 &rtl2831u_props, "Realtek RTL2831U reference design", NULL) },
1387         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1388                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1389         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1390                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1391
1392         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1393                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1394         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1395                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1396         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1397                 &rtl2832u_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1398         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1399                 &rtl2832u_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1400         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1401                 &rtl2832u_props, "TerraTec NOXON DAB Stick", NULL) },
1402         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1403                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1404         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1405                 &rtl2832u_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1406         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1407                 &rtl2832u_props, "Dexatek DK DVB-T Dongle", NULL) },
1408         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1409                 &rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1410         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1411                 &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1412         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1413                 &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1414         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1415                 &rtl2832u_props, "TerraTec Cinergy T Stick+", NULL) },
1416         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1417                 &rtl2832u_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1418         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1419                 &rtl2832u_props, "GIGABYTE U7300", NULL) },
1420         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1421                 &rtl2832u_props, "MSI DIGIVOX Micro HD", NULL) },
1422         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1423                 &rtl2832u_props, "Compro VideoMate U620F", NULL) },
1424         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1425                 &rtl2832u_props, "MaxMedia HU394-T", NULL) },
1426         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1427                 &rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1428         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1429                 &rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
1430
1431         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1432                 &rtl2832u_props, "Astrometa DVB-T2", NULL) },
1433         { }
1434 };
1435 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1436
1437 static struct usb_driver rtl28xxu_usb_driver = {
1438         .name = KBUILD_MODNAME,
1439         .id_table = rtl28xxu_id_table,
1440         .probe = dvb_usbv2_probe,
1441         .disconnect = dvb_usbv2_disconnect,
1442         .suspend = dvb_usbv2_suspend,
1443         .resume = dvb_usbv2_resume,
1444         .reset_resume = dvb_usbv2_reset_resume,
1445         .no_dynamic_id = 1,
1446         .soft_unbind = 1,
1447 };
1448
1449 module_usb_driver(rtl28xxu_usb_driver);
1450
1451 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1452 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1453 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1454 MODULE_LICENSE("GPL");