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 static int rtl28xxu_disable_rc;
  39 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
  40 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
  41 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  42
  43 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  44 {
  45         int ret;
  46         unsigned int pipe;
  47         u8 requesttype;
  48         u8 *buf;
  49
  50         buf = kmalloc(req->size, GFP_KERNEL);
  51         if (!buf) {
  52                 ret = -ENOMEM;
  53                 goto err;
  54         }
  55
  56         if (req->index & CMD_WR_FLAG) {
  57                 /* write */
  58                 memcpy(buf, req->data, req->size);
  59                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  60                 pipe = usb_sndctrlpipe(d->udev, 0);
  61         } else {
  62                 /* read */
  63                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
  64                 pipe = usb_rcvctrlpipe(d->udev, 0);
  65         }
  66
  67         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  68                         req->index, buf, req->size, 1000);
  69
  70         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  71                         req->index, buf, req->size);
  72
  73         if (ret > 0)
  74                 ret = 0;
  75
  76         /* read request, copy returned data to return buf */
  77         if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  78                 memcpy(req->data, buf, req->size);
  79
  80         kfree(buf);
  81
  82         if (ret)
  83                 goto err;
  84
  85         return ret;
  86 err:
  87         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
  88         return ret;
  89 }
  90
  91 static int rtl28xx_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  92 {
  93         struct rtl28xxu_req req;
  94
  95         if (reg < 0x3000)
  96                 req.index = CMD_USB_WR;
  97         else if (reg < 0x4000)
  98                 req.index = CMD_SYS_WR;
  99         else
 100                 req.index = CMD_IR_WR;
 101
 102         req.value = reg;
 103         req.size = len;
 104         req.data = val;
 105
 106         return rtl28xxu_ctrl_msg(d, &req);
 107 }
 108
 109 static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 110 {
 111         struct rtl28xxu_req req;
 112
 113         if (reg < 0x3000)
 114                 req.index = CMD_USB_RD;
 115         else if (reg < 0x4000)
 116                 req.index = CMD_SYS_RD;
 117         else
 118                 req.index = CMD_IR_RD;
 119
 120         req.value = reg;
 121         req.size = len;
 122         req.data = val;
 123
 124         return rtl28xxu_ctrl_msg(d, &req);
 125 }
 126
 127 static int rtl28xx_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 128 {
 129         return rtl28xx_wr_regs(d, reg, &val, 1);
 130 }
 131
 132 static int rtl28xx_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 133 {
 134         return rtl2831_rd_regs(d, reg, val, 1);
 135 }
 136
 137 static int rtl28xx_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 138                 u8 mask)
 139 {
 140         int ret;
 141         u8 tmp;
 142
 143         /* no need for read if whole reg is written */
 144         if (mask != 0xff) {
 145                 ret = rtl28xx_rd_reg(d, reg, &tmp);
 146                 if (ret)
 147                         return ret;
 148
 149                 val &= mask;
 150                 tmp &= ~mask;
 151                 val |= tmp;
 152         }
 153
 154         return rtl28xx_wr_reg(d, reg, val);
 155 }
 156
 157 /* I2C */
 158 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 159         int num)
 160 {
 161         int ret;
 162         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 163         struct rtl28xxu_priv *priv = d->priv;
 164         struct rtl28xxu_req req;
 165
 166         /*
 167          * It is not known which are real I2C bus xfer limits, but testing
 168          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 169          * TODO: find out RTL2832U lens
 170          */
 171
 172         /*
 173          * I2C adapter logic looks rather complicated due to fact it handles
 174          * three different access methods. Those methods are;
 175          * 1) integrated demod access
 176          * 2) old I2C access
 177          * 3) new I2C access
 178          *
 179          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 180          * requests but there is two reasons why not use it always;
 181          * 1) It is most expensive, usually two USB messages are needed
 182          * 2) At least RTL2831U does not support it
 183          *
 184          * Method 3 is needed in case of I2C write+read (typical register read)
 185          * where write is more than one byte.
 186          */
 187
 188         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 189                 return -EAGAIN;
 190
 191         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 192                 (msg[1].flags & I2C_M_RD)) {
 193                 if (msg[0].len > 24 || msg[1].len > 24) {
 194                         /* TODO: check msg[0].len max */
 195                         ret = -EOPNOTSUPP;
 196                         goto err_mutex_unlock;
 197                 } else if (msg[0].addr == 0x10) {
 198                         /* method 1 - integrated demod */
 199                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 200                         req.index = CMD_DEMOD_RD | priv->page;
 201                         req.size = msg[1].len;
 202                         req.data = &msg[1].buf[0];
 203                         ret = rtl28xxu_ctrl_msg(d, &req);
 204                 } else if (msg[0].len < 2) {
 205                         /* method 2 - old I2C */
 206                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 207                         req.index = CMD_I2C_RD;
 208                         req.size = msg[1].len;
 209                         req.data = &msg[1].buf[0];
 210                         ret = rtl28xxu_ctrl_msg(d, &req);
 211                 } else {
 212                         /* method 3 - new I2C */
 213                         req.value = (msg[0].addr << 1);
 214                         req.index = CMD_I2C_DA_WR;
 215                         req.size = msg[0].len;
 216                         req.data = msg[0].buf;
 217                         ret = rtl28xxu_ctrl_msg(d, &req);
 218                         if (ret)
 219                                 goto err_mutex_unlock;
 220
 221                         req.value = (msg[0].addr << 1);
 222                         req.index = CMD_I2C_DA_RD;
 223                         req.size = msg[1].len;
 224                         req.data = msg[1].buf;
 225                         ret = rtl28xxu_ctrl_msg(d, &req);
 226                 }
 227         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 228                 if (msg[0].len > 22) {
 229                         /* TODO: check msg[0].len max */
 230                         ret = -EOPNOTSUPP;
 231                         goto err_mutex_unlock;
 232                 } else if (msg[0].addr == 0x10) {
 233                         /* method 1 - integrated demod */
 234                         if (msg[0].buf[0] == 0x00) {
 235                                 /* save demod page for later demod access */
 236                                 priv->page = msg[0].buf[1];
 237                                 ret = 0;
 238                         } else {
 239                                 req.value = (msg[0].buf[0] << 8) |
 240                                         (msg[0].addr << 1);
 241                                 req.index = CMD_DEMOD_WR | priv->page;
 242                                 req.size = msg[0].len-1;
 243                                 req.data = &msg[0].buf[1];
 244                                 ret = rtl28xxu_ctrl_msg(d, &req);
 245                         }
 246                 } else if (msg[0].len < 23) {
 247                         /* method 2 - old I2C */
 248                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 249                         req.index = CMD_I2C_WR;
 250                         req.size = msg[0].len-1;
 251                         req.data = &msg[0].buf[1];
 252                         ret = rtl28xxu_ctrl_msg(d, &req);
 253                 } else {
 254                         /* method 3 - new I2C */
 255                         req.value = (msg[0].addr << 1);
 256                         req.index = CMD_I2C_DA_WR;
 257                         req.size = msg[0].len;
 258                         req.data = msg[0].buf;
 259                         ret = rtl28xxu_ctrl_msg(d, &req);
 260                 }
 261         } else {
 262                 ret = -EINVAL;
 263         }
 264
 265 err_mutex_unlock:
 266         mutex_unlock(&d->i2c_mutex);
 267
 268         return ret ? ret : num;
 269 }
 270
 271 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 272 {
 273         return I2C_FUNC_I2C;
 274 }
 275
 276 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 277         .master_xfer   = rtl28xxu_i2c_xfer,
 278         .functionality = rtl28xxu_i2c_func,
 279 };
 280
 281 static int rtl2831u_read_config(struct dvb_usb_device *d)
 282 {
 283         struct rtl28xxu_priv *priv = d_to_priv(d);
 284         int ret;
 285         u8 buf[1];
 286         /* open RTL2831U/RTL2830 I2C gate */
 287         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 288         /* tuner probes */
 289         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 290         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 291
 292         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 293
 294         /*
 295          * RTL2831U GPIOs
 296          * =========================================================
 297          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 298          * GPIO2 | LED     | 0 off | 1 on  |
 299          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 300          */
 301
 302         /* GPIO direction */
 303         ret = rtl28xx_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 304         if (ret)
 305                 goto err;
 306
 307         /* enable as output GPIO0, GPIO2, GPIO4 */
 308         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 309         if (ret)
 310                 goto err;
 311
 312         /*
 313          * Probe used tuner. We need to know used tuner before demod attach
 314          * since there is some demod params needed to set according to tuner.
 315          */
 316
 317         /* demod needs some time to wake up */
 318         msleep(20);
 319
 320         priv->tuner_name = "NONE";
 321
 322         /* open demod I2C gate */
 323         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 324         if (ret)
 325                 goto err;
 326
 327         /* check QT1010 ID(?) register; reg=0f val=2c */
 328         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 329         if (ret == 0 && buf[0] == 0x2c) {
 330                 priv->tuner = TUNER_RTL2830_QT1010;
 331                 priv->tuner_name = "QT1010";
 332                 goto found;
 333         }
 334
 335         /* open demod I2C gate */
 336         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 337         if (ret)
 338                 goto err;
 339
 340         /* check MT2060 ID register; reg=00 val=63 */
 341         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 342         if (ret == 0 && buf[0] == 0x63) {
 343                 priv->tuner = TUNER_RTL2830_MT2060;
 344                 priv->tuner_name = "MT2060";
 345                 goto found;
 346         }
 347
 348         /* assume MXL5005S */
 349         priv->tuner = TUNER_RTL2830_MXL5005S;
 350         priv->tuner_name = "MXL5005S";
 351         goto found;
 352
 353 found:
 354         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 355
 356         return 0;
 357 err:
 358         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 359         return ret;
 360 }
 361
 362 static int rtl2832u_read_config(struct dvb_usb_device *d)
 363 {
 364         struct rtl28xxu_priv *priv = d_to_priv(d);
 365         int ret;
 366         u8 buf[2];
 367         /* open RTL2832U/RTL2832 I2C gate */
 368         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 369         /* close RTL2832U/RTL2832 I2C gate */
 370         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 371         /* tuner probes */
 372         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 373         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 374         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 375         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 376         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 377         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 378         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 379         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 380         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 381         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 382         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 383         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 384
 385         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 386
 387         /* enable GPIO3 and GPIO6 as output */
 388         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 389         if (ret)
 390                 goto err;
 391
 392         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 393         if (ret)
 394                 goto err;
 395
 396         /*
 397          * Probe used tuner. We need to know used tuner before demod attach
 398          * since there is some demod params needed to set according to tuner.
 399          */
 400
 401         /* open demod I2C gate */
 402         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 403         if (ret)
 404                 goto err;
 405
 406         priv->tuner_name = "NONE";
 407
 408         /* check FC0012 ID register; reg=00 val=a1 */
 409         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 410         if (ret == 0 && buf[0] == 0xa1) {
 411                 priv->tuner = TUNER_RTL2832_FC0012;
 412                 priv->tuner_name = "FC0012";
 413                 goto found;
 414         }
 415
 416         /* check FC0013 ID register; reg=00 val=a3 */
 417         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 418         if (ret == 0 && buf[0] == 0xa3) {
 419                 priv->tuner = TUNER_RTL2832_FC0013;
 420                 priv->tuner_name = "FC0013";
 421                 goto found;
 422         }
 423
 424         /* check MT2266 ID register; reg=00 val=85 */
 425         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 426         if (ret == 0 && buf[0] == 0x85) {
 427                 priv->tuner = TUNER_RTL2832_MT2266;
 428                 priv->tuner_name = "MT2266";
 429                 goto found;
 430         }
 431
 432         /* check FC2580 ID register; reg=01 val=56 */
 433         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 434         if (ret == 0 && buf[0] == 0x56) {
 435                 priv->tuner = TUNER_RTL2832_FC2580;
 436                 priv->tuner_name = "FC2580";
 437                 goto found;
 438         }
 439
 440         /* check MT2063 ID register; reg=00 val=9e || 9c */
 441         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 442         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 443                 priv->tuner = TUNER_RTL2832_MT2063;
 444                 priv->tuner_name = "MT2063";
 445                 goto found;
 446         }
 447
 448         /* check MAX3543 ID register; reg=00 val=38 */
 449         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 450         if (ret == 0 && buf[0] == 0x38) {
 451                 priv->tuner = TUNER_RTL2832_MAX3543;
 452                 priv->tuner_name = "MAX3543";
 453                 goto found;
 454         }
 455
 456         /* check TUA9001 ID register; reg=7e val=2328 */
 457         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 458         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 459                 priv->tuner = TUNER_RTL2832_TUA9001;
 460                 priv->tuner_name = "TUA9001";
 461                 goto found;
 462         }
 463
 464         /* check MXL5007R ID register; reg=d9 val=14 */
 465         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 466         if (ret == 0 && buf[0] == 0x14) {
 467                 priv->tuner = TUNER_RTL2832_MXL5007T;
 468                 priv->tuner_name = "MXL5007T";
 469                 goto found;
 470         }
 471
 472         /* check E4000 ID register; reg=02 val=40 */
 473         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 474         if (ret == 0 && buf[0] == 0x40) {
 475                 priv->tuner = TUNER_RTL2832_E4000;
 476                 priv->tuner_name = "E4000";
 477                 goto found;
 478         }
 479
 480         /* check TDA18272 ID register; reg=00 val=c760  */
 481         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 482         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 483                 priv->tuner = TUNER_RTL2832_TDA18272;
 484                 priv->tuner_name = "TDA18272";
 485                 goto found;
 486         }
 487
 488         /* check R820T ID register; reg=00 val=69 */
 489         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 490         if (ret == 0 && buf[0] == 0x69) {
 491                 priv->tuner = TUNER_RTL2832_R820T;
 492                 priv->tuner_name = "R820T";
 493                 goto found;
 494         }
 495
 496         /* check R828D ID register; reg=00 val=69 */
 497         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 498         if (ret == 0 && buf[0] == 0x69) {
 499                 priv->tuner = TUNER_RTL2832_R828D;
 500                 priv->tuner_name = "R828D";
 501                 goto found;
 502         }
 503
 504
 505 found:
 506         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 507
 508         /* close demod I2C gate */
 509         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 510         if (ret < 0)
 511                 goto err;
 512
 513         return 0;
 514 err:
 515         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 516         return ret;
 517 }
 518
 519 static struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
 520         .i2c_addr = 0x10, /* 0x20 */
 521         .xtal = 28800000,
 522         .ts_mode = 0,
 523         .spec_inv = 1,
 524         .vtop = 0x20,
 525         .krf = 0x04,
 526         .agc_targ_val = 0x2d,
 527
 528 };
 529
 530 static struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
 531         .i2c_addr = 0x10, /* 0x20 */
 532         .xtal = 28800000,
 533         .ts_mode = 0,
 534         .spec_inv = 1,
 535         .vtop = 0x20,
 536         .krf = 0x04,
 537         .agc_targ_val = 0x2d,
 538 };
 539
 540 static struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
 541         .i2c_addr = 0x10, /* 0x20 */
 542         .xtal = 28800000,
 543         .ts_mode = 0,
 544         .spec_inv = 0,
 545         .vtop = 0x3f,
 546         .krf = 0x04,
 547         .agc_targ_val = 0x3e,
 548 };
 549
 550 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 551 {
 552         struct dvb_usb_device *d = adap_to_d(adap);
 553         struct rtl28xxu_priv *priv = d_to_priv(d);
 554         struct rtl2830_config *rtl2830_config;
 555         int ret;
 556
 557         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 558
 559         switch (priv->tuner) {
 560         case TUNER_RTL2830_QT1010:
 561                 rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
 562                 break;
 563         case TUNER_RTL2830_MT2060:
 564                 rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
 565                 break;
 566         case TUNER_RTL2830_MXL5005S:
 567                 rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
 568                 break;
 569         default:
 570                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 571                                 KBUILD_MODNAME, priv->tuner_name);
 572                 ret = -ENODEV;
 573                 goto err;
 574         }
 575
 576         /* attach demodulator */
 577         adap->fe[0] = dvb_attach(rtl2830_attach, rtl2830_config, &d->i2c_adap);
 578         if (!adap->fe[0]) {
 579                 ret = -ENODEV;
 580                 goto err;
 581         }
 582
 583         return 0;
 584 err:
 585         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 586         return ret;
 587 }
 588
 589 static struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = {
 590         .i2c_addr = 0x10, /* 0x20 */
 591         .xtal = 28800000,
 592         .tuner = TUNER_RTL2832_FC0012
 593 };
 594
 595 static struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
 596         .i2c_addr = 0x10, /* 0x20 */
 597         .xtal = 28800000,
 598         .tuner = TUNER_RTL2832_FC0013
 599 };
 600
 601 static struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
 602         .i2c_addr = 0x10, /* 0x20 */
 603         .xtal = 28800000,
 604         .tuner = TUNER_RTL2832_TUA9001,
 605 };
 606
 607 static struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
 608         .i2c_addr = 0x10, /* 0x20 */
 609         .xtal = 28800000,
 610         .tuner = TUNER_RTL2832_E4000,
 611 };
 612
 613 static struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
 614         .i2c_addr = 0x10,
 615         .xtal = 28800000,
 616         .tuner = TUNER_RTL2832_R820T,
 617 };
 618
 619 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 620                 int cmd, int arg)
 621 {
 622         int ret;
 623         u8 val;
 624
 625         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 626
 627         switch (cmd) {
 628         case FC_FE_CALLBACK_VHF_ENABLE:
 629                 /* set output values */
 630                 ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 631                 if (ret)
 632                         goto err;
 633
 634                 if (arg)
 635                         val &= 0xbf; /* set GPIO6 low */
 636                 else
 637                         val |= 0x40; /* set GPIO6 high */
 638
 639
 640                 ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 641                 if (ret)
 642                         goto err;
 643                 break;
 644         default:
 645                 ret = -EINVAL;
 646                 goto err;
 647         }
 648         return 0;
 649 err:
 650         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 651         return ret;
 652 }
 653
 654 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 655                 int cmd, int arg)
 656 {
 657         int ret;
 658         u8 val;
 659
 660         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 661
 662         /*
 663          * CEN     always enabled by hardware wiring
 664          * RESETN  GPIO4
 665          * RXEN    GPIO1
 666          */
 667
 668         switch (cmd) {
 669         case TUA9001_CMD_RESETN:
 670                 if (arg)
 671                         val = (1 << 4);
 672                 else
 673                         val = (0 << 4);
 674
 675                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 676                 if (ret)
 677                         goto err;
 678                 break;
 679         case TUA9001_CMD_RXEN:
 680                 if (arg)
 681                         val = (1 << 1);
 682                 else
 683                         val = (0 << 1);
 684
 685                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 686                 if (ret)
 687                         goto err;
 688                 break;
 689         }
 690
 691         return 0;
 692 err:
 693         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 694         return ret;
 695 }
 696
 697 static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 698 {
 699         struct rtl28xxu_priv *priv = d->priv;
 700
 701         switch (priv->tuner) {
 702         case TUNER_RTL2832_FC0012:
 703                 return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 704         case TUNER_RTL2832_TUA9001:
 705                 return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 706         default:
 707                 break;
 708         }
 709
 710         return 0;
 711 }
 712
 713 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 714                 int cmd, int arg)
 715 {
 716         struct i2c_adapter *adap = adapter_priv;
 717         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 718
 719         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 720                         __func__, component, cmd, arg);
 721
 722         switch (component) {
 723         case DVB_FRONTEND_COMPONENT_TUNER:
 724                 return rtl2832u_tuner_callback(d, cmd, arg);
 725         default:
 726                 break;
 727         }
 728
 729         return 0;
 730 }
 731
 732 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 733 {
 734         int ret;
 735         struct dvb_usb_device *d = adap_to_d(adap);
 736         struct rtl28xxu_priv *priv = d_to_priv(d);
 737         struct rtl2832_config *rtl2832_config;
 738
 739         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 740
 741         switch (priv->tuner) {
 742         case TUNER_RTL2832_FC0012:
 743                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 744                 break;
 745         case TUNER_RTL2832_FC0013:
 746                 rtl2832_config = &rtl28xxu_rtl2832_fc0013_config;
 747                 break;
 748         case TUNER_RTL2832_FC2580:
 749                 /* FIXME: do not abuse fc0012 settings */
 750                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 751                 break;
 752         case TUNER_RTL2832_TUA9001:
 753                 rtl2832_config = &rtl28xxu_rtl2832_tua9001_config;
 754                 break;
 755         case TUNER_RTL2832_E4000:
 756                 rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
 757                 break;
 758         case TUNER_RTL2832_R820T:
 759         case TUNER_RTL2832_R828D:
 760                 rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
 761                 break;
 762         default:
 763                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 764                                 KBUILD_MODNAME, priv->tuner_name);
 765                 ret = -ENODEV;
 766                 goto err;
 767         }
 768
 769         /* attach demodulator */
 770         adap->fe[0] = dvb_attach(rtl2832_attach, rtl2832_config, &d->i2c_adap);
 771         if (!adap->fe[0]) {
 772                 ret = -ENODEV;
 773                 goto err;
 774         }
 775
 776         /* set fe callback */
 777         adap->fe[0]->callback = rtl2832u_frontend_callback;
 778
 779         return 0;
 780 err:
 781         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 782         return ret;
 783 }
 784
 785 static struct qt1010_config rtl28xxu_qt1010_config = {
 786         .i2c_address = 0x62, /* 0xc4 */
 787 };
 788
 789 static struct mt2060_config rtl28xxu_mt2060_config = {
 790         .i2c_address = 0x60, /* 0xc0 */
 791         .clock_out = 0,
 792 };
 793
 794 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
 795         .i2c_address     = 0x63, /* 0xc6 */
 796         .if_freq         = IF_FREQ_4570000HZ,
 797         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 798         .agc_mode        = MXL_SINGLE_AGC,
 799         .tracking_filter = MXL_TF_C_H,
 800         .rssi_enable     = MXL_RSSI_ENABLE,
 801         .cap_select      = MXL_CAP_SEL_ENABLE,
 802         .div_out         = MXL_DIV_OUT_4,
 803         .clock_out       = MXL_CLOCK_OUT_DISABLE,
 804         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 805         .top             = MXL5005S_TOP_25P2,
 806         .mod_mode        = MXL_DIGITAL_MODE,
 807         .if_mode         = MXL_ZERO_IF,
 808         .AgcMasterByte   = 0x00,
 809 };
 810
 811 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
 812 {
 813         int ret;
 814         struct dvb_usb_device *d = adap_to_d(adap);
 815         struct rtl28xxu_priv *priv = d_to_priv(d);
 816         struct i2c_adapter *rtl2830_tuner_i2c;
 817         struct dvb_frontend *fe;
 818
 819         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 820
 821         /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
 822         rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe[0]);
 823
 824         switch (priv->tuner) {
 825         case TUNER_RTL2830_QT1010:
 826                 fe = dvb_attach(qt1010_attach, adap->fe[0],
 827                                 rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
 828                 break;
 829         case TUNER_RTL2830_MT2060:
 830                 fe = dvb_attach(mt2060_attach, adap->fe[0],
 831                                 rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
 832                                 1220);
 833                 break;
 834         case TUNER_RTL2830_MXL5005S:
 835                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
 836                                 rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
 837                 break;
 838         default:
 839                 fe = NULL;
 840                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 841                                 priv->tuner);
 842         }
 843
 844         if (fe == NULL) {
 845                 ret = -ENODEV;
 846                 goto err;
 847         }
 848
 849         return 0;
 850 err:
 851         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 852         return ret;
 853 }
 854
 855 static const struct e4000_config rtl2832u_e4000_config = {
 856         .i2c_addr = 0x64,
 857         .clock = 28800000,
 858 };
 859
 860 static const struct fc2580_config rtl2832u_fc2580_config = {
 861         .i2c_addr = 0x56,
 862         .clock = 16384000,
 863 };
 864
 865 static struct tua9001_config rtl2832u_tua9001_config = {
 866         .i2c_addr = 0x60,
 867 };
 868
 869 static const struct fc0012_config rtl2832u_fc0012_config = {
 870         .i2c_address = 0x63, /* 0xc6 >> 1 */
 871         .xtal_freq = FC_XTAL_28_8_MHZ,
 872 };
 873
 874 static const struct r820t_config rtl2832u_r820t_config = {
 875         .i2c_addr = 0x1a,
 876         .xtal = 28800000,
 877         .max_i2c_msg_len = 2,
 878         .rafael_chip = CHIP_R820T,
 879 };
 880
 881 static const struct r820t_config rtl2832u_r828d_config = {
 882         .i2c_addr = 0x3a,
 883         .xtal = 16000000,
 884         .max_i2c_msg_len = 2,
 885         .rafael_chip = CHIP_R828D,
 886 };
 887
 888 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 889 {
 890         int ret;
 891         struct dvb_usb_device *d = adap_to_d(adap);
 892         struct rtl28xxu_priv *priv = d_to_priv(d);
 893         struct dvb_frontend *fe;
 894
 895         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 896
 897         switch (priv->tuner) {
 898         case TUNER_RTL2832_FC0012:
 899                 fe = dvb_attach(fc0012_attach, adap->fe[0],
 900                         &d->i2c_adap, &rtl2832u_fc0012_config);
 901
 902                 /* since fc0012 includs reading the signal strength delegate
 903                  * that to the tuner driver */
 904                 adap->fe[0]->ops.read_signal_strength =
 905                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 906                 return 0;
 907                 break;
 908         case TUNER_RTL2832_FC0013:
 909                 fe = dvb_attach(fc0013_attach, adap->fe[0],
 910                         &d->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
 911
 912                 /* fc0013 also supports signal strength reading */
 913                 adap->fe[0]->ops.read_signal_strength =
 914                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 915                 return 0;
 916         case TUNER_RTL2832_E4000:
 917                 fe = dvb_attach(e4000_attach, adap->fe[0], &d->i2c_adap,
 918                                 &rtl2832u_e4000_config);
 919                 break;
 920         case TUNER_RTL2832_FC2580:
 921                 fe = dvb_attach(fc2580_attach, adap->fe[0], &d->i2c_adap,
 922                                 &rtl2832u_fc2580_config);
 923                 break;
 924         case TUNER_RTL2832_TUA9001:
 925                 /* enable GPIO1 and GPIO4 as output */
 926                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
 927                 if (ret)
 928                         goto err;
 929
 930                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
 931                 if (ret)
 932                         goto err;
 933
 934                 fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
 935                                 &rtl2832u_tua9001_config);
 936                 break;
 937         case TUNER_RTL2832_R820T:
 938                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 939                                 &rtl2832u_r820t_config);
 940
 941                 /* Use tuner to get the signal strength */
 942                 adap->fe[0]->ops.read_signal_strength =
 943                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 944                 break;
 945         case TUNER_RTL2832_R828D:
 946                 /* power off mn88472 demod on GPIO0 */
 947                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
 948                 if (ret)
 949                         goto err;
 950
 951                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 952                 if (ret)
 953                         goto err;
 954
 955                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 956                 if (ret)
 957                         goto err;
 958
 959                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 960                                 &rtl2832u_r828d_config);
 961
 962                 /* Use tuner to get the signal strength */
 963                 adap->fe[0]->ops.read_signal_strength =
 964                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 965                 break;
 966         default:
 967                 fe = NULL;
 968                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 969                                 priv->tuner);
 970         }
 971
 972         if (fe == NULL) {
 973                 ret = -ENODEV;
 974                 goto err;
 975         }
 976
 977         return 0;
 978 err:
 979         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 980         return ret;
 981 }
 982
 983 static int rtl28xxu_init(struct dvb_usb_device *d)
 984 {
 985         int ret;
 986         u8 val;
 987
 988         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 989
 990         /* init USB endpoints */
 991         ret = rtl28xx_rd_reg(d, USB_SYSCTL_0, &val);
 992         if (ret)
 993                 goto err;
 994
 995         /* enable DMA and Full Packet Mode*/
 996         val |= 0x09;
 997         ret = rtl28xx_wr_reg(d, USB_SYSCTL_0, val);
 998         if (ret)
 999                 goto err;
1000
1001         /* set EPA maximum packet size to 0x0200 */
1002         ret = rtl28xx_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1003         if (ret)
1004                 goto err;
1005
1006         /* change EPA FIFO length */
1007         ret = rtl28xx_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1008         if (ret)
1009                 goto err;
1010
1011         return ret;
1012 err:
1013         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1014         return ret;
1015 }
1016
1017 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1018 {
1019         int ret;
1020         u8 gpio, sys0, epa_ctl[2];
1021
1022         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1023
1024         /* demod adc */
1025         ret = rtl28xx_rd_reg(d, SYS_SYS0, &sys0);
1026         if (ret)
1027                 goto err;
1028
1029         /* tuner power, read GPIOs */
1030         ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1031         if (ret)
1032                 goto err;
1033
1034         dev_dbg(&d->udev->dev, "%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1035                         sys0, gpio);
1036
1037         if (onoff) {
1038                 gpio |= 0x01; /* GPIO0 = 1 */
1039                 gpio &= (~0x10); /* GPIO4 = 0 */
1040                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1041                 sys0 = sys0 & 0x0f;
1042                 sys0 |= 0xe0;
1043                 epa_ctl[0] = 0x00; /* clear stall */
1044                 epa_ctl[1] = 0x00; /* clear reset */
1045         } else {
1046                 gpio &= (~0x01); /* GPIO0 = 0 */
1047                 gpio |= 0x10; /* GPIO4 = 1 */
1048                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1049                 sys0 = sys0 & (~0xc0);
1050                 epa_ctl[0] = 0x10; /* set stall */
1051                 epa_ctl[1] = 0x02; /* set reset */
1052         }
1053
1054         dev_dbg(&d->udev->dev, "%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1055                         sys0, gpio);
1056
1057         /* demod adc */
1058         ret = rtl28xx_wr_reg(d, SYS_SYS0, sys0);
1059         if (ret)
1060                 goto err;
1061
1062         /* tuner power, write GPIOs */
1063         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1064         if (ret)
1065                 goto err;
1066
1067         /* streaming EP: stall & reset */
1068         ret = rtl28xx_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1069         if (ret)
1070                 goto err;
1071
1072         if (onoff)
1073                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1074
1075         return ret;
1076 err:
1077         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1078         return ret;
1079 }
1080
1081 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1082 {
1083         int ret;
1084
1085         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1086
1087         if (onoff) {
1088                 /* GPIO3=1, GPIO4=0 */
1089                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1090                 if (ret)
1091                         goto err;
1092
1093                 /* suspend? */
1094                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1095                 if (ret)
1096                         goto err;
1097
1098                 /* enable PLL */
1099                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1100                 if (ret)
1101                         goto err;
1102
1103                 /* disable reset */
1104                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1105                 if (ret)
1106                         goto err;
1107
1108                 mdelay(5);
1109
1110                 /* enable ADC */
1111                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x48, 0x48);
1112                 if (ret)
1113                         goto err;
1114
1115                 /* streaming EP: clear stall & reset */
1116                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1117                 if (ret)
1118                         goto err;
1119
1120                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1121                 if (ret)
1122                         goto err;
1123         } else {
1124                 /* GPIO4=1 */
1125                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1126                 if (ret)
1127                         goto err;
1128
1129                 /* disable ADC */
1130                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x48);
1131                 if (ret)
1132                         goto err;
1133
1134                 /* disable PLL */
1135                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1136                 if (ret)
1137                         goto err;
1138
1139                 /* streaming EP: set stall & reset */
1140                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1141                 if (ret)
1142                         goto err;
1143         }
1144
1145         return ret;
1146 err:
1147         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1148         return ret;
1149 }
1150
1151 #if IS_ENABLED(CONFIG_RC_CORE)
1152 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1153 {
1154         int ret, i;
1155         struct rtl28xxu_priv *priv = d->priv;
1156         u8 buf[5];
1157         u32 rc_code;
1158         struct rtl28xxu_reg_val rc_nec_tab[] = {
1159                 { 0x3033, 0x80 },
1160                 { 0x3020, 0x43 },
1161                 { 0x3021, 0x16 },
1162                 { 0x3022, 0x16 },
1163                 { 0x3023, 0x5a },
1164                 { 0x3024, 0x2d },
1165                 { 0x3025, 0x16 },
1166                 { 0x3026, 0x01 },
1167                 { 0x3028, 0xb0 },
1168                 { 0x3029, 0x04 },
1169                 { 0x302c, 0x88 },
1170                 { 0x302e, 0x13 },
1171                 { 0x3030, 0xdf },
1172                 { 0x3031, 0x05 },
1173         };
1174
1175         /* init remote controller */
1176         if (!priv->rc_active) {
1177                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1178                         ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg,
1179                                         rc_nec_tab[i].val);
1180                         if (ret)
1181                                 goto err;
1182                 }
1183                 priv->rc_active = true;
1184         }
1185
1186         ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
1187         if (ret)
1188                 goto err;
1189
1190         if (buf[4] & 0x01) {
1191                 if (buf[2] == (u8) ~buf[3]) {
1192                         if (buf[0] == (u8) ~buf[1]) {
1193                                 /* NEC standard (16 bit) */
1194                                 rc_code = buf[0] << 8 | buf[2];
1195                         } else {
1196                                 /* NEC extended (24 bit) */
1197                                 rc_code = buf[0] << 16 |
1198                                                 buf[1] << 8 | buf[2];
1199                         }
1200                 } else {
1201                         /* NEC full (32 bit) */
1202                         rc_code = buf[0] << 24 | buf[1] << 16 |
1203                                         buf[2] << 8 | buf[3];
1204                 }
1205
1206                 rc_keydown(d->rc_dev, rc_code, 0);
1207
1208                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1209                 if (ret)
1210                         goto err;
1211
1212                 /* repeated intentionally to avoid extra keypress */
1213                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1214                 if (ret)
1215                         goto err;
1216         }
1217
1218         return ret;
1219 err:
1220         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1221         return ret;
1222 }
1223
1224 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1225                 struct dvb_usb_rc *rc)
1226 {
1227         rc->map_name = RC_MAP_EMPTY;
1228         rc->allowed_protos = RC_BIT_NEC;
1229         rc->query = rtl2831u_rc_query;
1230         rc->interval = 400;
1231
1232         return 0;
1233 }
1234
1235 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1236 {
1237         int ret, i, len;
1238         struct rtl28xxu_priv *priv = d->priv;
1239         struct ir_raw_event ev;
1240         u8 buf[128];
1241         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1242                 {IR_RX_IF,               0x03, 0xff},
1243                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1244                 {IR_RX_CTRL,             0x80, 0xff},
1245         };
1246
1247         /* init remote controller */
1248         if (!priv->rc_active) {
1249                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1250                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1251                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1252                         {USB_CTRL,               0x20, 0x20},
1253                         {SYS_GPIO_DIR,           0x00, 0x08},
1254                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1255                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1256                         {IR_MAX_DURATION0,       0xd0, 0xff},
1257                         {IR_MAX_DURATION1,       0x07, 0xff},
1258                         {IR_IDLE_LEN0,           0xc0, 0xff},
1259                         {IR_IDLE_LEN1,           0x00, 0xff},
1260                         {IR_GLITCH_LEN,          0x03, 0xff},
1261                         {IR_RX_CLK,              0x09, 0xff},
1262                         {IR_RX_CFG,              0x1c, 0xff},
1263                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1264                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1265                         {IR_RX_CTRL,             0x80, 0xff},
1266                 };
1267
1268                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1269                         ret = rtl28xx_wr_reg_mask(d, init_tab[i].reg,
1270                                         init_tab[i].val, init_tab[i].mask);
1271                         if (ret)
1272                                 goto err;
1273                 }
1274
1275                 priv->rc_active = true;
1276         }
1277
1278         ret = rtl28xx_rd_reg(d, IR_RX_IF, &buf[0]);
1279         if (ret)
1280                 goto err;
1281
1282         if (buf[0] != 0x83)
1283                 goto exit;
1284
1285         ret = rtl28xx_rd_reg(d, IR_RX_BC, &buf[0]);
1286         if (ret)
1287                 goto err;
1288
1289         len = buf[0];
1290
1291         /* read raw code from hw */
1292         ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
1293         if (ret)
1294                 goto err;
1295
1296         /* let hw receive new code */
1297         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1298                 ret = rtl28xx_wr_reg_mask(d, refresh_tab[i].reg,
1299                                 refresh_tab[i].val, refresh_tab[i].mask);
1300                 if (ret)
1301                         goto err;
1302         }
1303
1304         /* pass data to Kernel IR decoder */
1305         init_ir_raw_event(&ev);
1306
1307         for (i = 0; i < len; i++) {
1308                 ev.pulse = buf[i] >> 7;
1309                 ev.duration = 50800 * (buf[i] & 0x7f);
1310                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1311         }
1312
1313         /* 'flush' ir_raw_event_store_with_filter() */
1314         ir_raw_event_set_idle(d->rc_dev, true);
1315         ir_raw_event_handle(d->rc_dev);
1316 exit:
1317         return ret;
1318 err:
1319         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1320         return ret;
1321 }
1322
1323 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1324                 struct dvb_usb_rc *rc)
1325 {
1326         /* disable IR interrupts in order to avoid SDR sample loss */
1327         if (rtl28xxu_disable_rc)
1328                 return rtl28xx_wr_reg(d, IR_RX_IE, 0x00);
1329
1330         /* load empty to enable rc */
1331         if (!rc->map_name)
1332                 rc->map_name = RC_MAP_EMPTY;
1333         rc->allowed_protos = RC_BIT_ALL;
1334         rc->driver_type = RC_DRIVER_IR_RAW;
1335         rc->query = rtl2832u_rc_query;
1336         rc->interval = 400;
1337
1338         return 0;
1339 }
1340 #else
1341 #define rtl2831u_get_rc_config NULL
1342 #define rtl2832u_get_rc_config NULL
1343 #endif
1344
1345 static const struct dvb_usb_device_properties rtl2831u_props = {
1346         .driver_name = KBUILD_MODNAME,
1347         .owner = THIS_MODULE,
1348         .adapter_nr = adapter_nr,
1349         .size_of_priv = sizeof(struct rtl28xxu_priv),
1350
1351         .power_ctrl = rtl2831u_power_ctrl,
1352         .i2c_algo = &rtl28xxu_i2c_algo,
1353         .read_config = rtl2831u_read_config,
1354         .frontend_attach = rtl2831u_frontend_attach,
1355         .tuner_attach = rtl2831u_tuner_attach,
1356         .init = rtl28xxu_init,
1357         .get_rc_config = rtl2831u_get_rc_config,
1358
1359         .num_adapters = 1,
1360         .adapter = {
1361                 {
1362                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1363                 },
1364         },
1365 };
1366
1367 static const struct dvb_usb_device_properties rtl2832u_props = {
1368         .driver_name = KBUILD_MODNAME,
1369         .owner = THIS_MODULE,
1370         .adapter_nr = adapter_nr,
1371         .size_of_priv = sizeof(struct rtl28xxu_priv),
1372
1373         .power_ctrl = rtl2832u_power_ctrl,
1374         .i2c_algo = &rtl28xxu_i2c_algo,
1375         .read_config = rtl2832u_read_config,
1376         .frontend_attach = rtl2832u_frontend_attach,
1377         .tuner_attach = rtl2832u_tuner_attach,
1378         .init = rtl28xxu_init,
1379         .get_rc_config = rtl2832u_get_rc_config,
1380
1381         .num_adapters = 1,
1382         .adapter = {
1383                 {
1384                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1385                 },
1386         },
1387 };
1388
1389 static const struct usb_device_id rtl28xxu_id_table[] = {
1390         /* RTL2831U devices: */
1391         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1392                 &rtl2831u_props, "Realtek RTL2831U reference design", NULL) },
1393         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1394                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1395         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1396                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1397
1398         /* RTL2832U devices: */
1399         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1400                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1401         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1402                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1403         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1404                 &rtl2832u_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1405         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1406                 &rtl2832u_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1407         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1408                 &rtl2832u_props, "TerraTec NOXON DAB Stick", NULL) },
1409         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1410                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1411         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1412                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1413         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1414                 &rtl2832u_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1415         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1416                 &rtl2832u_props, "Dexatek DK DVB-T Dongle", NULL) },
1417         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1418                 &rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1419         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1420                 &rtl2832u_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1421         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1422                 &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1423         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1424                 &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1425         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1426                 &rtl2832u_props, "TerraTec Cinergy T Stick+", NULL) },
1427         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1428                 &rtl2832u_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1429         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1430                 &rtl2832u_props, "GIGABYTE U7300", NULL) },
1431         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1432                 &rtl2832u_props, "MSI DIGIVOX Micro HD", NULL) },
1433         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1434                 &rtl2832u_props, "Compro VideoMate U620F", NULL) },
1435         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1436                 &rtl2832u_props, "MaxMedia HU394-T", NULL) },
1437         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1438                 &rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1439         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1440                 &rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
1441         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1442                 &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
1443
1444         /* RTL2832P devices: */
1445         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1446                 &rtl2832u_props, "Astrometa DVB-T2", NULL) },
1447         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1448                 &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
1449         { }
1450 };
1451 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1452
1453 static struct usb_driver rtl28xxu_usb_driver = {
1454         .name = KBUILD_MODNAME,
1455         .id_table = rtl28xxu_id_table,
1456         .probe = dvb_usbv2_probe,
1457         .disconnect = dvb_usbv2_disconnect,
1458         .suspend = dvb_usbv2_suspend,
1459         .resume = dvb_usbv2_resume,
1460         .reset_resume = dvb_usbv2_reset_resume,
1461         .no_dynamic_id = 1,
1462         .soft_unbind = 1,
1463 };
1464
1465 module_usb_driver(rtl28xxu_usb_driver);
1466
1467 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1468 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1469 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1470 MODULE_LICENSE("GPL");