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 #include "rtl2832_sdr.h"
  28
  29 #include "qt1010.h"
  30 #include "mt2060.h"
  31 #include "mxl5005s.h"
  32 #include "fc0012.h"
  33 #include "fc0013.h"
  34 #include "e4000.h"
  35 #include "fc2580.h"
  36 #include "tua9001.h"
  37 #include "r820t.h"
  38
  39 static int rtl28xxu_disable_rc;
  40 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
  41 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
  42 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  43
  44 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  45 {
  46         int ret;
  47         unsigned int pipe;
  48         u8 requesttype;
  49         u8 *buf;
  50
  51         buf = kmalloc(req->size, GFP_KERNEL);
  52         if (!buf) {
  53                 ret = -ENOMEM;
  54                 goto err;
  55         }
  56
  57         if (req->index & CMD_WR_FLAG) {
  58                 /* write */
  59                 memcpy(buf, req->data, req->size);
  60                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  61                 pipe = usb_sndctrlpipe(d->udev, 0);
  62         } else {
  63                 /* read */
  64                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
  65                 pipe = usb_rcvctrlpipe(d->udev, 0);
  66         }
  67
  68         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  69                         req->index, buf, req->size, 1000);
  70
  71         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  72                         req->index, buf, req->size);
  73
  74         if (ret > 0)
  75                 ret = 0;
  76
  77         /* read request, copy returned data to return buf */
  78         if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  79                 memcpy(req->data, buf, req->size);
  80
  81         kfree(buf);
  82
  83         if (ret)
  84                 goto err;
  85
  86         return ret;
  87 err:
  88         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
  89         return ret;
  90 }
  91
  92 static int rtl28xx_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  93 {
  94         struct rtl28xxu_req req;
  95
  96         if (reg < 0x3000)
  97                 req.index = CMD_USB_WR;
  98         else if (reg < 0x4000)
  99                 req.index = CMD_SYS_WR;
 100         else
 101                 req.index = CMD_IR_WR;
 102
 103         req.value = reg;
 104         req.size = len;
 105         req.data = val;
 106
 107         return rtl28xxu_ctrl_msg(d, &req);
 108 }
 109
 110 static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 111 {
 112         struct rtl28xxu_req req;
 113
 114         if (reg < 0x3000)
 115                 req.index = CMD_USB_RD;
 116         else if (reg < 0x4000)
 117                 req.index = CMD_SYS_RD;
 118         else
 119                 req.index = CMD_IR_RD;
 120
 121         req.value = reg;
 122         req.size = len;
 123         req.data = val;
 124
 125         return rtl28xxu_ctrl_msg(d, &req);
 126 }
 127
 128 static int rtl28xx_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 129 {
 130         return rtl28xx_wr_regs(d, reg, &val, 1);
 131 }
 132
 133 static int rtl28xx_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 134 {
 135         return rtl2831_rd_regs(d, reg, val, 1);
 136 }
 137
 138 static int rtl28xx_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 139                 u8 mask)
 140 {
 141         int ret;
 142         u8 tmp;
 143
 144         /* no need for read if whole reg is written */
 145         if (mask != 0xff) {
 146                 ret = rtl28xx_rd_reg(d, reg, &tmp);
 147                 if (ret)
 148                         return ret;
 149
 150                 val &= mask;
 151                 tmp &= ~mask;
 152                 val |= tmp;
 153         }
 154
 155         return rtl28xx_wr_reg(d, reg, val);
 156 }
 157
 158 /* I2C */
 159 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 160         int num)
 161 {
 162         int ret;
 163         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 164         struct rtl28xxu_priv *priv = d->priv;
 165         struct rtl28xxu_req req;
 166
 167         /*
 168          * It is not known which are real I2C bus xfer limits, but testing
 169          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 170          * TODO: find out RTL2832U lens
 171          */
 172
 173         /*
 174          * I2C adapter logic looks rather complicated due to fact it handles
 175          * three different access methods. Those methods are;
 176          * 1) integrated demod access
 177          * 2) old I2C access
 178          * 3) new I2C access
 179          *
 180          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 181          * requests but there is two reasons why not use it always;
 182          * 1) It is most expensive, usually two USB messages are needed
 183          * 2) At least RTL2831U does not support it
 184          *
 185          * Method 3 is needed in case of I2C write+read (typical register read)
 186          * where write is more than one byte.
 187          */
 188
 189         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 190                 return -EAGAIN;
 191
 192         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 193                 (msg[1].flags & I2C_M_RD)) {
 194                 if (msg[0].len > 24 || msg[1].len > 24) {
 195                         /* TODO: check msg[0].len max */
 196                         ret = -EOPNOTSUPP;
 197                         goto err_mutex_unlock;
 198                 } else if (msg[0].addr == 0x10) {
 199                         /* method 1 - integrated demod */
 200                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 201                         req.index = CMD_DEMOD_RD | priv->page;
 202                         req.size = msg[1].len;
 203                         req.data = &msg[1].buf[0];
 204                         ret = rtl28xxu_ctrl_msg(d, &req);
 205                 } else if (msg[0].len < 2) {
 206                         /* method 2 - old I2C */
 207                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 208                         req.index = CMD_I2C_RD;
 209                         req.size = msg[1].len;
 210                         req.data = &msg[1].buf[0];
 211                         ret = rtl28xxu_ctrl_msg(d, &req);
 212                 } else {
 213                         /* method 3 - new I2C */
 214                         req.value = (msg[0].addr << 1);
 215                         req.index = CMD_I2C_DA_WR;
 216                         req.size = msg[0].len;
 217                         req.data = msg[0].buf;
 218                         ret = rtl28xxu_ctrl_msg(d, &req);
 219                         if (ret)
 220                                 goto err_mutex_unlock;
 221
 222                         req.value = (msg[0].addr << 1);
 223                         req.index = CMD_I2C_DA_RD;
 224                         req.size = msg[1].len;
 225                         req.data = msg[1].buf;
 226                         ret = rtl28xxu_ctrl_msg(d, &req);
 227                 }
 228         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 229                 if (msg[0].len > 22) {
 230                         /* TODO: check msg[0].len max */
 231                         ret = -EOPNOTSUPP;
 232                         goto err_mutex_unlock;
 233                 } else if (msg[0].addr == 0x10) {
 234                         /* method 1 - integrated demod */
 235                         if (msg[0].buf[0] == 0x00) {
 236                                 /* save demod page for later demod access */
 237                                 priv->page = msg[0].buf[1];
 238                                 ret = 0;
 239                         } else {
 240                                 req.value = (msg[0].buf[0] << 8) |
 241                                         (msg[0].addr << 1);
 242                                 req.index = CMD_DEMOD_WR | priv->page;
 243                                 req.size = msg[0].len-1;
 244                                 req.data = &msg[0].buf[1];
 245                                 ret = rtl28xxu_ctrl_msg(d, &req);
 246                         }
 247                 } else if (msg[0].len < 23) {
 248                         /* method 2 - old I2C */
 249                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 250                         req.index = CMD_I2C_WR;
 251                         req.size = msg[0].len-1;
 252                         req.data = &msg[0].buf[1];
 253                         ret = rtl28xxu_ctrl_msg(d, &req);
 254                 } else {
 255                         /* method 3 - new I2C */
 256                         req.value = (msg[0].addr << 1);
 257                         req.index = CMD_I2C_DA_WR;
 258                         req.size = msg[0].len;
 259                         req.data = msg[0].buf;
 260                         ret = rtl28xxu_ctrl_msg(d, &req);
 261                 }
 262         } else {
 263                 ret = -EINVAL;
 264         }
 265
 266 err_mutex_unlock:
 267         mutex_unlock(&d->i2c_mutex);
 268
 269         return ret ? ret : num;
 270 }
 271
 272 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 273 {
 274         return I2C_FUNC_I2C;
 275 }
 276
 277 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 278         .master_xfer   = rtl28xxu_i2c_xfer,
 279         .functionality = rtl28xxu_i2c_func,
 280 };
 281
 282 static int rtl2831u_read_config(struct dvb_usb_device *d)
 283 {
 284         struct rtl28xxu_priv *priv = d_to_priv(d);
 285         int ret;
 286         u8 buf[1];
 287         /* open RTL2831U/RTL2830 I2C gate */
 288         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 289         /* tuner probes */
 290         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 291         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 292
 293         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 294
 295         /*
 296          * RTL2831U GPIOs
 297          * =========================================================
 298          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 299          * GPIO2 | LED     | 0 off | 1 on  |
 300          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 301          */
 302
 303         /* GPIO direction */
 304         ret = rtl28xx_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 305         if (ret)
 306                 goto err;
 307
 308         /* enable as output GPIO0, GPIO2, GPIO4 */
 309         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 310         if (ret)
 311                 goto err;
 312
 313         /*
 314          * Probe used tuner. We need to know used tuner before demod attach
 315          * since there is some demod params needed to set according to tuner.
 316          */
 317
 318         /* demod needs some time to wake up */
 319         msleep(20);
 320
 321         priv->tuner_name = "NONE";
 322
 323         /* open demod I2C gate */
 324         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 325         if (ret)
 326                 goto err;
 327
 328         /* check QT1010 ID(?) register; reg=0f val=2c */
 329         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 330         if (ret == 0 && buf[0] == 0x2c) {
 331                 priv->tuner = TUNER_RTL2830_QT1010;
 332                 priv->tuner_name = "QT1010";
 333                 goto found;
 334         }
 335
 336         /* open demod I2C gate */
 337         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 338         if (ret)
 339                 goto err;
 340
 341         /* check MT2060 ID register; reg=00 val=63 */
 342         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 343         if (ret == 0 && buf[0] == 0x63) {
 344                 priv->tuner = TUNER_RTL2830_MT2060;
 345                 priv->tuner_name = "MT2060";
 346                 goto found;
 347         }
 348
 349         /* assume MXL5005S */
 350         priv->tuner = TUNER_RTL2830_MXL5005S;
 351         priv->tuner_name = "MXL5005S";
 352         goto found;
 353
 354 found:
 355         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 356
 357         return 0;
 358 err:
 359         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 360         return ret;
 361 }
 362
 363 static int rtl2832u_read_config(struct dvb_usb_device *d)
 364 {
 365         struct rtl28xxu_priv *priv = d_to_priv(d);
 366         int ret;
 367         u8 buf[2];
 368         /* open RTL2832U/RTL2832 I2C gate */
 369         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 370         /* close RTL2832U/RTL2832 I2C gate */
 371         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 372         /* tuner probes */
 373         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 374         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 375         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 376         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 377         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 378         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 379         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 380         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 381         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 382         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 383         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 384         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 385
 386         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 387
 388         /* enable GPIO3 and GPIO6 as output */
 389         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 390         if (ret)
 391                 goto err;
 392
 393         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 394         if (ret)
 395                 goto err;
 396
 397         /*
 398          * Probe used tuner. We need to know used tuner before demod attach
 399          * since there is some demod params needed to set according to tuner.
 400          */
 401
 402         /* open demod I2C gate */
 403         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 404         if (ret)
 405                 goto err;
 406
 407         priv->tuner_name = "NONE";
 408
 409         /* check FC0012 ID register; reg=00 val=a1 */
 410         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 411         if (ret == 0 && buf[0] == 0xa1) {
 412                 priv->tuner = TUNER_RTL2832_FC0012;
 413                 priv->tuner_name = "FC0012";
 414                 goto found;
 415         }
 416
 417         /* check FC0013 ID register; reg=00 val=a3 */
 418         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 419         if (ret == 0 && buf[0] == 0xa3) {
 420                 priv->tuner = TUNER_RTL2832_FC0013;
 421                 priv->tuner_name = "FC0013";
 422                 goto found;
 423         }
 424
 425         /* check MT2266 ID register; reg=00 val=85 */
 426         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 427         if (ret == 0 && buf[0] == 0x85) {
 428                 priv->tuner = TUNER_RTL2832_MT2266;
 429                 priv->tuner_name = "MT2266";
 430                 goto found;
 431         }
 432
 433         /* check FC2580 ID register; reg=01 val=56 */
 434         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 435         if (ret == 0 && buf[0] == 0x56) {
 436                 priv->tuner = TUNER_RTL2832_FC2580;
 437                 priv->tuner_name = "FC2580";
 438                 goto found;
 439         }
 440
 441         /* check MT2063 ID register; reg=00 val=9e || 9c */
 442         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 443         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 444                 priv->tuner = TUNER_RTL2832_MT2063;
 445                 priv->tuner_name = "MT2063";
 446                 goto found;
 447         }
 448
 449         /* check MAX3543 ID register; reg=00 val=38 */
 450         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 451         if (ret == 0 && buf[0] == 0x38) {
 452                 priv->tuner = TUNER_RTL2832_MAX3543;
 453                 priv->tuner_name = "MAX3543";
 454                 goto found;
 455         }
 456
 457         /* check TUA9001 ID register; reg=7e val=2328 */
 458         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 459         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 460                 priv->tuner = TUNER_RTL2832_TUA9001;
 461                 priv->tuner_name = "TUA9001";
 462                 goto found;
 463         }
 464
 465         /* check MXL5007R ID register; reg=d9 val=14 */
 466         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 467         if (ret == 0 && buf[0] == 0x14) {
 468                 priv->tuner = TUNER_RTL2832_MXL5007T;
 469                 priv->tuner_name = "MXL5007T";
 470                 goto found;
 471         }
 472
 473         /* check E4000 ID register; reg=02 val=40 */
 474         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 475         if (ret == 0 && buf[0] == 0x40) {
 476                 priv->tuner = TUNER_RTL2832_E4000;
 477                 priv->tuner_name = "E4000";
 478                 goto found;
 479         }
 480
 481         /* check TDA18272 ID register; reg=00 val=c760  */
 482         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 483         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 484                 priv->tuner = TUNER_RTL2832_TDA18272;
 485                 priv->tuner_name = "TDA18272";
 486                 goto found;
 487         }
 488
 489         /* check R820T ID register; reg=00 val=69 */
 490         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 491         if (ret == 0 && buf[0] == 0x69) {
 492                 priv->tuner = TUNER_RTL2832_R820T;
 493                 priv->tuner_name = "R820T";
 494                 goto found;
 495         }
 496
 497         /* check R828D ID register; reg=00 val=69 */
 498         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 499         if (ret == 0 && buf[0] == 0x69) {
 500                 priv->tuner = TUNER_RTL2832_R828D;
 501                 priv->tuner_name = "R828D";
 502                 goto found;
 503         }
 504
 505
 506 found:
 507         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 508
 509         /* close demod I2C gate */
 510         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 511         if (ret < 0)
 512                 goto err;
 513
 514         return 0;
 515 err:
 516         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 517         return ret;
 518 }
 519
 520 static const struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
 521         .i2c_addr = 0x10, /* 0x20 */
 522         .xtal = 28800000,
 523         .ts_mode = 0,
 524         .spec_inv = 1,
 525         .vtop = 0x20,
 526         .krf = 0x04,
 527         .agc_targ_val = 0x2d,
 528
 529 };
 530
 531 static const struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
 532         .i2c_addr = 0x10, /* 0x20 */
 533         .xtal = 28800000,
 534         .ts_mode = 0,
 535         .spec_inv = 1,
 536         .vtop = 0x20,
 537         .krf = 0x04,
 538         .agc_targ_val = 0x2d,
 539 };
 540
 541 static const struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
 542         .i2c_addr = 0x10, /* 0x20 */
 543         .xtal = 28800000,
 544         .ts_mode = 0,
 545         .spec_inv = 0,
 546         .vtop = 0x3f,
 547         .krf = 0x04,
 548         .agc_targ_val = 0x3e,
 549 };
 550
 551 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 552 {
 553         struct dvb_usb_device *d = adap_to_d(adap);
 554         struct rtl28xxu_priv *priv = d_to_priv(d);
 555         const struct rtl2830_config *rtl2830_config;
 556         int ret;
 557
 558         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 559
 560         switch (priv->tuner) {
 561         case TUNER_RTL2830_QT1010:
 562                 rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
 563                 break;
 564         case TUNER_RTL2830_MT2060:
 565                 rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
 566                 break;
 567         case TUNER_RTL2830_MXL5005S:
 568                 rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
 569                 break;
 570         default:
 571                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 572                                 KBUILD_MODNAME, priv->tuner_name);
 573                 ret = -ENODEV;
 574                 goto err;
 575         }
 576
 577         /* attach demodulator */
 578         adap->fe[0] = dvb_attach(rtl2830_attach, rtl2830_config, &d->i2c_adap);
 579         if (!adap->fe[0]) {
 580                 ret = -ENODEV;
 581                 goto err;
 582         }
 583
 584         return 0;
 585 err:
 586         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 587         return ret;
 588 }
 589
 590 static const struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = {
 591         .i2c_addr = 0x10, /* 0x20 */
 592         .xtal = 28800000,
 593         .tuner = TUNER_RTL2832_FC0012
 594 };
 595
 596 static const struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
 597         .i2c_addr = 0x10, /* 0x20 */
 598         .xtal = 28800000,
 599         .tuner = TUNER_RTL2832_FC0013
 600 };
 601
 602 static const struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
 603         .i2c_addr = 0x10, /* 0x20 */
 604         .xtal = 28800000,
 605         .tuner = TUNER_RTL2832_TUA9001,
 606 };
 607
 608 static const struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
 609         .i2c_addr = 0x10, /* 0x20 */
 610         .xtal = 28800000,
 611         .tuner = TUNER_RTL2832_E4000,
 612 };
 613
 614 static const struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
 615         .i2c_addr = 0x10,
 616         .xtal = 28800000,
 617         .tuner = TUNER_RTL2832_R820T,
 618 };
 619
 620 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 621                 int cmd, int arg)
 622 {
 623         int ret;
 624         u8 val;
 625
 626         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 627
 628         switch (cmd) {
 629         case FC_FE_CALLBACK_VHF_ENABLE:
 630                 /* set output values */
 631                 ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 632                 if (ret)
 633                         goto err;
 634
 635                 if (arg)
 636                         val &= 0xbf; /* set GPIO6 low */
 637                 else
 638                         val |= 0x40; /* set GPIO6 high */
 639
 640
 641                 ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 642                 if (ret)
 643                         goto err;
 644                 break;
 645         default:
 646                 ret = -EINVAL;
 647                 goto err;
 648         }
 649         return 0;
 650 err:
 651         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 652         return ret;
 653 }
 654
 655 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 656                 int cmd, int arg)
 657 {
 658         int ret;
 659         u8 val;
 660
 661         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 662
 663         /*
 664          * CEN     always enabled by hardware wiring
 665          * RESETN  GPIO4
 666          * RXEN    GPIO1
 667          */
 668
 669         switch (cmd) {
 670         case TUA9001_CMD_RESETN:
 671                 if (arg)
 672                         val = (1 << 4);
 673                 else
 674                         val = (0 << 4);
 675
 676                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 677                 if (ret)
 678                         goto err;
 679                 break;
 680         case TUA9001_CMD_RXEN:
 681                 if (arg)
 682                         val = (1 << 1);
 683                 else
 684                         val = (0 << 1);
 685
 686                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 687                 if (ret)
 688                         goto err;
 689                 break;
 690         }
 691
 692         return 0;
 693 err:
 694         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 695         return ret;
 696 }
 697
 698 static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 699 {
 700         struct rtl28xxu_priv *priv = d->priv;
 701
 702         switch (priv->tuner) {
 703         case TUNER_RTL2832_FC0012:
 704                 return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 705         case TUNER_RTL2832_TUA9001:
 706                 return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 707         default:
 708                 break;
 709         }
 710
 711         return 0;
 712 }
 713
 714 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 715                 int cmd, int arg)
 716 {
 717         struct i2c_adapter *adap = adapter_priv;
 718         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 719
 720         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 721                         __func__, component, cmd, arg);
 722
 723         switch (component) {
 724         case DVB_FRONTEND_COMPONENT_TUNER:
 725                 return rtl2832u_tuner_callback(d, cmd, arg);
 726         default:
 727                 break;
 728         }
 729
 730         return 0;
 731 }
 732
 733 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 734 {
 735         int ret;
 736         struct dvb_usb_device *d = adap_to_d(adap);
 737         struct rtl28xxu_priv *priv = d_to_priv(d);
 738         const struct rtl2832_config *rtl2832_config;
 739
 740         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 741
 742         switch (priv->tuner) {
 743         case TUNER_RTL2832_FC0012:
 744                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 745                 break;
 746         case TUNER_RTL2832_FC0013:
 747                 rtl2832_config = &rtl28xxu_rtl2832_fc0013_config;
 748                 break;
 749         case TUNER_RTL2832_FC2580:
 750                 /* FIXME: do not abuse fc0012 settings */
 751                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 752                 break;
 753         case TUNER_RTL2832_TUA9001:
 754                 rtl2832_config = &rtl28xxu_rtl2832_tua9001_config;
 755                 break;
 756         case TUNER_RTL2832_E4000:
 757                 rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
 758                 break;
 759         case TUNER_RTL2832_R820T:
 760         case TUNER_RTL2832_R828D:
 761                 rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
 762                 break;
 763         default:
 764                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 765                                 KBUILD_MODNAME, priv->tuner_name);
 766                 ret = -ENODEV;
 767                 goto err;
 768         }
 769
 770         /* attach demodulator */
 771         adap->fe[0] = dvb_attach(rtl2832_attach, rtl2832_config, &d->i2c_adap);
 772         if (!adap->fe[0]) {
 773                 ret = -ENODEV;
 774                 goto err;
 775         }
 776
 777         /* RTL2832 I2C repeater */
 778         priv->demod_i2c_adapter = rtl2832_get_i2c_adapter(adap->fe[0]);
 779
 780         /* set fe callback */
 781         adap->fe[0]->callback = rtl2832u_frontend_callback;
 782
 783         return 0;
 784 err:
 785         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 786         return ret;
 787 }
 788
 789 static struct qt1010_config rtl28xxu_qt1010_config = {
 790         .i2c_address = 0x62, /* 0xc4 */
 791 };
 792
 793 static struct mt2060_config rtl28xxu_mt2060_config = {
 794         .i2c_address = 0x60, /* 0xc0 */
 795         .clock_out = 0,
 796 };
 797
 798 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
 799         .i2c_address     = 0x63, /* 0xc6 */
 800         .if_freq         = IF_FREQ_4570000HZ,
 801         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 802         .agc_mode        = MXL_SINGLE_AGC,
 803         .tracking_filter = MXL_TF_C_H,
 804         .rssi_enable     = MXL_RSSI_ENABLE,
 805         .cap_select      = MXL_CAP_SEL_ENABLE,
 806         .div_out         = MXL_DIV_OUT_4,
 807         .clock_out       = MXL_CLOCK_OUT_DISABLE,
 808         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 809         .top             = MXL5005S_TOP_25P2,
 810         .mod_mode        = MXL_DIGITAL_MODE,
 811         .if_mode         = MXL_ZERO_IF,
 812         .AgcMasterByte   = 0x00,
 813 };
 814
 815 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
 816 {
 817         int ret;
 818         struct dvb_usb_device *d = adap_to_d(adap);
 819         struct rtl28xxu_priv *priv = d_to_priv(d);
 820         struct i2c_adapter *rtl2830_tuner_i2c;
 821         struct dvb_frontend *fe;
 822
 823         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 824
 825         /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
 826         rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe[0]);
 827
 828         switch (priv->tuner) {
 829         case TUNER_RTL2830_QT1010:
 830                 fe = dvb_attach(qt1010_attach, adap->fe[0],
 831                                 rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
 832                 break;
 833         case TUNER_RTL2830_MT2060:
 834                 fe = dvb_attach(mt2060_attach, adap->fe[0],
 835                                 rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
 836                                 1220);
 837                 break;
 838         case TUNER_RTL2830_MXL5005S:
 839                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
 840                                 rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
 841                 break;
 842         default:
 843                 fe = NULL;
 844                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 845                                 priv->tuner);
 846         }
 847
 848         if (fe == NULL) {
 849                 ret = -ENODEV;
 850                 goto err;
 851         }
 852
 853         return 0;
 854 err:
 855         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 856         return ret;
 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 = NULL;
 893         struct i2c_board_info info;
 894         struct i2c_client *client;
 895
 896         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 897
 898         memset(&info, 0, sizeof(struct i2c_board_info));
 899
 900         switch (priv->tuner) {
 901         case TUNER_RTL2832_FC0012:
 902                 fe = dvb_attach(fc0012_attach, adap->fe[0],
 903                         &d->i2c_adap, &rtl2832u_fc0012_config);
 904
 905                 /* since fc0012 includs reading the signal strength delegate
 906                  * that to the tuner driver */
 907                 adap->fe[0]->ops.read_signal_strength =
 908                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 909
 910                 /* attach SDR */
 911                 dvb_attach(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
 912                                 &rtl28xxu_rtl2832_fc0012_config, NULL);
 913                 break;
 914         case TUNER_RTL2832_FC0013:
 915                 fe = dvb_attach(fc0013_attach, adap->fe[0],
 916                         &d->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
 917
 918                 /* fc0013 also supports signal strength reading */
 919                 adap->fe[0]->ops.read_signal_strength =
 920                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 921
 922                 /* attach SDR */
 923                 dvb_attach(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
 924                                 &rtl28xxu_rtl2832_fc0013_config, NULL);
 925                 break;
 926         case TUNER_RTL2832_E4000: {
 927                         struct v4l2_subdev *sd;
 928                         struct i2c_adapter *i2c_adap_internal =
 929                                         rtl2832_get_private_i2c_adapter(adap->fe[0]);
 930                         struct e4000_config e4000_config = {
 931                                 .fe = adap->fe[0],
 932                                 .clock = 28800000,
 933                         };
 934
 935                         strlcpy(info.type, "e4000", I2C_NAME_SIZE);
 936                         info.addr = 0x64;
 937                         info.platform_data = &e4000_config;
 938
 939                         request_module(info.type);
 940                         client = i2c_new_device(priv->demod_i2c_adapter, &info);
 941                         if (client == NULL || client->dev.driver == NULL)
 942                                 break;
 943
 944                         if (!try_module_get(client->dev.driver->owner)) {
 945                                 i2c_unregister_device(client);
 946                                 break;
 947                         }
 948
 949                         priv->client = client;
 950                         sd = i2c_get_clientdata(client);
 951                         i2c_set_adapdata(i2c_adap_internal, d);
 952
 953                         /* attach SDR */
 954                         dvb_attach(rtl2832_sdr_attach, adap->fe[0],
 955                                         i2c_adap_internal,
 956                                         &rtl28xxu_rtl2832_e4000_config, sd);
 957                 }
 958                 break;
 959         case TUNER_RTL2832_FC2580:
 960                 fe = dvb_attach(fc2580_attach, adap->fe[0], &d->i2c_adap,
 961                                 &rtl2832u_fc2580_config);
 962                 break;
 963         case TUNER_RTL2832_TUA9001:
 964                 /* enable GPIO1 and GPIO4 as output */
 965                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
 966                 if (ret)
 967                         goto err;
 968
 969                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
 970                 if (ret)
 971                         goto err;
 972
 973                 fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
 974                                 &rtl2832u_tua9001_config);
 975                 break;
 976         case TUNER_RTL2832_R820T:
 977                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 978                                 &rtl2832u_r820t_config);
 979
 980                 /* Use tuner to get the signal strength */
 981                 adap->fe[0]->ops.read_signal_strength =
 982                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 983
 984                 /* attach SDR */
 985                 dvb_attach(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
 986                                 &rtl28xxu_rtl2832_r820t_config, NULL);
 987                 break;
 988         case TUNER_RTL2832_R828D:
 989                 /* power off mn88472 demod on GPIO0 */
 990                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
 991                 if (ret)
 992                         goto err;
 993
 994                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 995                 if (ret)
 996                         goto err;
 997
 998                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 999                 if (ret)
1000                         goto err;
1001
1002                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
1003                                 &rtl2832u_r828d_config);
1004
1005                 /* Use tuner to get the signal strength */
1006                 adap->fe[0]->ops.read_signal_strength =
1007                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1008                 break;
1009         default:
1010                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
1011                                 priv->tuner);
1012         }
1013
1014         if (fe == NULL && priv->client == NULL) {
1015                 ret = -ENODEV;
1016                 goto err;
1017         }
1018
1019         return 0;
1020 err:
1021         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1022         return ret;
1023 }
1024
1025 static int rtl28xxu_init(struct dvb_usb_device *d)
1026 {
1027         int ret;
1028         u8 val;
1029
1030         dev_dbg(&d->udev->dev, "%s:\n", __func__);
1031
1032         /* init USB endpoints */
1033         ret = rtl28xx_rd_reg(d, USB_SYSCTL_0, &val);
1034         if (ret)
1035                 goto err;
1036
1037         /* enable DMA and Full Packet Mode*/
1038         val |= 0x09;
1039         ret = rtl28xx_wr_reg(d, USB_SYSCTL_0, val);
1040         if (ret)
1041                 goto err;
1042
1043         /* set EPA maximum packet size to 0x0200 */
1044         ret = rtl28xx_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1045         if (ret)
1046                 goto err;
1047
1048         /* change EPA FIFO length */
1049         ret = rtl28xx_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1050         if (ret)
1051                 goto err;
1052
1053         return ret;
1054 err:
1055         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1056         return ret;
1057 }
1058
1059 static void rtl28xxu_exit(struct dvb_usb_device *d)
1060 {
1061         struct rtl28xxu_priv *priv = d->priv;
1062         struct i2c_client *client = priv->client;
1063
1064         dev_dbg(&d->udev->dev, "%s:\n", __func__);
1065
1066         /* remove I2C tuner */
1067         if (client) {
1068                 module_put(client->dev.driver->owner);
1069                 i2c_unregister_device(client);
1070         }
1071
1072         return;
1073 }
1074
1075 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1076 {
1077         int ret;
1078         u8 gpio, sys0, epa_ctl[2];
1079
1080         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1081
1082         /* demod adc */
1083         ret = rtl28xx_rd_reg(d, SYS_SYS0, &sys0);
1084         if (ret)
1085                 goto err;
1086
1087         /* tuner power, read GPIOs */
1088         ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1089         if (ret)
1090                 goto err;
1091
1092         dev_dbg(&d->udev->dev, "%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1093                         sys0, gpio);
1094
1095         if (onoff) {
1096                 gpio |= 0x01; /* GPIO0 = 1 */
1097                 gpio &= (~0x10); /* GPIO4 = 0 */
1098                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1099                 sys0 = sys0 & 0x0f;
1100                 sys0 |= 0xe0;
1101                 epa_ctl[0] = 0x00; /* clear stall */
1102                 epa_ctl[1] = 0x00; /* clear reset */
1103         } else {
1104                 gpio &= (~0x01); /* GPIO0 = 0 */
1105                 gpio |= 0x10; /* GPIO4 = 1 */
1106                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1107                 sys0 = sys0 & (~0xc0);
1108                 epa_ctl[0] = 0x10; /* set stall */
1109                 epa_ctl[1] = 0x02; /* set reset */
1110         }
1111
1112         dev_dbg(&d->udev->dev, "%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1113                         sys0, gpio);
1114
1115         /* demod adc */
1116         ret = rtl28xx_wr_reg(d, SYS_SYS0, sys0);
1117         if (ret)
1118                 goto err;
1119
1120         /* tuner power, write GPIOs */
1121         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1122         if (ret)
1123                 goto err;
1124
1125         /* streaming EP: stall & reset */
1126         ret = rtl28xx_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1127         if (ret)
1128                 goto err;
1129
1130         if (onoff)
1131                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1132
1133         return ret;
1134 err:
1135         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1136         return ret;
1137 }
1138
1139 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1140 {
1141         int ret;
1142
1143         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1144
1145         if (onoff) {
1146                 /* GPIO3=1, GPIO4=0 */
1147                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1148                 if (ret)
1149                         goto err;
1150
1151                 /* suspend? */
1152                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1153                 if (ret)
1154                         goto err;
1155
1156                 /* enable PLL */
1157                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1158                 if (ret)
1159                         goto err;
1160
1161                 /* disable reset */
1162                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1163                 if (ret)
1164                         goto err;
1165
1166                 mdelay(5);
1167
1168                 /* enable ADC */
1169                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x48, 0x48);
1170                 if (ret)
1171                         goto err;
1172
1173                 /* streaming EP: clear stall & reset */
1174                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1175                 if (ret)
1176                         goto err;
1177
1178                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1179                 if (ret)
1180                         goto err;
1181         } else {
1182                 /* GPIO4=1 */
1183                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1184                 if (ret)
1185                         goto err;
1186
1187                 /* disable ADC */
1188                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x48);
1189                 if (ret)
1190                         goto err;
1191
1192                 /* disable PLL */
1193                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1194                 if (ret)
1195                         goto err;
1196
1197                 /* streaming EP: set stall & reset */
1198                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1199                 if (ret)
1200                         goto err;
1201         }
1202
1203         return ret;
1204 err:
1205         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1206         return ret;
1207 }
1208
1209 #if IS_ENABLED(CONFIG_RC_CORE)
1210 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1211 {
1212         int ret, i;
1213         struct rtl28xxu_priv *priv = d->priv;
1214         u8 buf[5];
1215         u32 rc_code;
1216         struct rtl28xxu_reg_val rc_nec_tab[] = {
1217                 { 0x3033, 0x80 },
1218                 { 0x3020, 0x43 },
1219                 { 0x3021, 0x16 },
1220                 { 0x3022, 0x16 },
1221                 { 0x3023, 0x5a },
1222                 { 0x3024, 0x2d },
1223                 { 0x3025, 0x16 },
1224                 { 0x3026, 0x01 },
1225                 { 0x3028, 0xb0 },
1226                 { 0x3029, 0x04 },
1227                 { 0x302c, 0x88 },
1228                 { 0x302e, 0x13 },
1229                 { 0x3030, 0xdf },
1230                 { 0x3031, 0x05 },
1231         };
1232
1233         /* init remote controller */
1234         if (!priv->rc_active) {
1235                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1236                         ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg,
1237                                         rc_nec_tab[i].val);
1238                         if (ret)
1239                                 goto err;
1240                 }
1241                 priv->rc_active = true;
1242         }
1243
1244         ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
1245         if (ret)
1246                 goto err;
1247
1248         if (buf[4] & 0x01) {
1249                 if (buf[2] == (u8) ~buf[3]) {
1250                         if (buf[0] == (u8) ~buf[1]) {
1251                                 /* NEC standard (16 bit) */
1252                                 rc_code = buf[0] << 8 | buf[2];
1253                         } else {
1254                                 /* NEC extended (24 bit) */
1255                                 rc_code = buf[0] << 16 |
1256                                                 buf[1] << 8 | buf[2];
1257                         }
1258                 } else {
1259                         /* NEC full (32 bit) */
1260                         rc_code = buf[0] << 24 | buf[1] << 16 |
1261                                         buf[2] << 8 | buf[3];
1262                 }
1263
1264                 rc_keydown(d->rc_dev, rc_code, 0);
1265
1266                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1267                 if (ret)
1268                         goto err;
1269
1270                 /* repeated intentionally to avoid extra keypress */
1271                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1272                 if (ret)
1273                         goto err;
1274         }
1275
1276         return ret;
1277 err:
1278         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1279         return ret;
1280 }
1281
1282 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1283                 struct dvb_usb_rc *rc)
1284 {
1285         rc->map_name = RC_MAP_EMPTY;
1286         rc->allowed_protos = RC_BIT_NEC;
1287         rc->query = rtl2831u_rc_query;
1288         rc->interval = 400;
1289
1290         return 0;
1291 }
1292
1293 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1294 {
1295         int ret, i, len;
1296         struct rtl28xxu_priv *priv = d->priv;
1297         struct ir_raw_event ev;
1298         u8 buf[128];
1299         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1300                 {IR_RX_IF,               0x03, 0xff},
1301                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1302                 {IR_RX_CTRL,             0x80, 0xff},
1303         };
1304
1305         /* init remote controller */
1306         if (!priv->rc_active) {
1307                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1308                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1309                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1310                         {USB_CTRL,               0x20, 0x20},
1311                         {SYS_GPIO_DIR,           0x00, 0x08},
1312                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1313                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1314                         {IR_MAX_DURATION0,       0xd0, 0xff},
1315                         {IR_MAX_DURATION1,       0x07, 0xff},
1316                         {IR_IDLE_LEN0,           0xc0, 0xff},
1317                         {IR_IDLE_LEN1,           0x00, 0xff},
1318                         {IR_GLITCH_LEN,          0x03, 0xff},
1319                         {IR_RX_CLK,              0x09, 0xff},
1320                         {IR_RX_CFG,              0x1c, 0xff},
1321                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1322                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1323                         {IR_RX_CTRL,             0x80, 0xff},
1324                 };
1325
1326                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1327                         ret = rtl28xx_wr_reg_mask(d, init_tab[i].reg,
1328                                         init_tab[i].val, init_tab[i].mask);
1329                         if (ret)
1330                                 goto err;
1331                 }
1332
1333                 priv->rc_active = true;
1334         }
1335
1336         ret = rtl28xx_rd_reg(d, IR_RX_IF, &buf[0]);
1337         if (ret)
1338                 goto err;
1339
1340         if (buf[0] != 0x83)
1341                 goto exit;
1342
1343         ret = rtl28xx_rd_reg(d, IR_RX_BC, &buf[0]);
1344         if (ret)
1345                 goto err;
1346
1347         len = buf[0];
1348
1349         /* read raw code from hw */
1350         ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
1351         if (ret)
1352                 goto err;
1353
1354         /* let hw receive new code */
1355         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1356                 ret = rtl28xx_wr_reg_mask(d, refresh_tab[i].reg,
1357                                 refresh_tab[i].val, refresh_tab[i].mask);
1358                 if (ret)
1359                         goto err;
1360         }
1361
1362         /* pass data to Kernel IR decoder */
1363         init_ir_raw_event(&ev);
1364
1365         for (i = 0; i < len; i++) {
1366                 ev.pulse = buf[i] >> 7;
1367                 ev.duration = 50800 * (buf[i] & 0x7f);
1368                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1369         }
1370
1371         /* 'flush' ir_raw_event_store_with_filter() */
1372         ir_raw_event_set_idle(d->rc_dev, true);
1373         ir_raw_event_handle(d->rc_dev);
1374 exit:
1375         return ret;
1376 err:
1377         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1378         return ret;
1379 }
1380
1381 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1382                 struct dvb_usb_rc *rc)
1383 {
1384         /* disable IR interrupts in order to avoid SDR sample loss */
1385         if (rtl28xxu_disable_rc)
1386                 return rtl28xx_wr_reg(d, IR_RX_IE, 0x00);
1387
1388         /* load empty to enable rc */
1389         if (!rc->map_name)
1390                 rc->map_name = RC_MAP_EMPTY;
1391         rc->allowed_protos = RC_BIT_ALL;
1392         rc->driver_type = RC_DRIVER_IR_RAW;
1393         rc->query = rtl2832u_rc_query;
1394         rc->interval = 400;
1395
1396         return 0;
1397 }
1398 #else
1399 #define rtl2831u_get_rc_config NULL
1400 #define rtl2832u_get_rc_config NULL
1401 #endif
1402
1403 static const struct dvb_usb_device_properties rtl2831u_props = {
1404         .driver_name = KBUILD_MODNAME,
1405         .owner = THIS_MODULE,
1406         .adapter_nr = adapter_nr,
1407         .size_of_priv = sizeof(struct rtl28xxu_priv),
1408
1409         .power_ctrl = rtl2831u_power_ctrl,
1410         .i2c_algo = &rtl28xxu_i2c_algo,
1411         .read_config = rtl2831u_read_config,
1412         .frontend_attach = rtl2831u_frontend_attach,
1413         .tuner_attach = rtl2831u_tuner_attach,
1414         .init = rtl28xxu_init,
1415         .get_rc_config = rtl2831u_get_rc_config,
1416
1417         .num_adapters = 1,
1418         .adapter = {
1419                 {
1420                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1421                 },
1422         },
1423 };
1424
1425 static const struct dvb_usb_device_properties rtl2832u_props = {
1426         .driver_name = KBUILD_MODNAME,
1427         .owner = THIS_MODULE,
1428         .adapter_nr = adapter_nr,
1429         .size_of_priv = sizeof(struct rtl28xxu_priv),
1430
1431         .power_ctrl = rtl2832u_power_ctrl,
1432         .i2c_algo = &rtl28xxu_i2c_algo,
1433         .read_config = rtl2832u_read_config,
1434         .frontend_attach = rtl2832u_frontend_attach,
1435         .tuner_attach = rtl2832u_tuner_attach,
1436         .init = rtl28xxu_init,
1437         .exit = rtl28xxu_exit,
1438         .get_rc_config = rtl2832u_get_rc_config,
1439
1440         .num_adapters = 1,
1441         .adapter = {
1442                 {
1443                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1444                 },
1445         },
1446 };
1447
1448 static const struct usb_device_id rtl28xxu_id_table[] = {
1449         /* RTL2831U devices: */
1450         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1451                 &rtl2831u_props, "Realtek RTL2831U reference design", NULL) },
1452         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1453                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1454         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1455                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1456
1457         /* RTL2832U devices: */
1458         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1459                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1460         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1461                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1462         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1463                 &rtl2832u_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1464         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1465                 &rtl2832u_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1466         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1467                 &rtl2832u_props, "TerraTec NOXON DAB Stick", NULL) },
1468         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1469                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1470         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1471                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1472         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1473                 &rtl2832u_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1474         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1475                 &rtl2832u_props, "Dexatek DK DVB-T Dongle", NULL) },
1476         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1477                 &rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1478         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1479                 &rtl2832u_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1480         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1481                 &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1482         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1483                 &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1484         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1485                 &rtl2832u_props, "TerraTec Cinergy T Stick+", NULL) },
1486         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1487                 &rtl2832u_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1488         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1489                 &rtl2832u_props, "GIGABYTE U7300", NULL) },
1490         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1491                 &rtl2832u_props, "MSI DIGIVOX Micro HD", NULL) },
1492         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1493                 &rtl2832u_props, "Compro VideoMate U620F", NULL) },
1494         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1495                 &rtl2832u_props, "MaxMedia HU394-T", NULL) },
1496         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1497                 &rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1498         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1499                 &rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
1500         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1501                 &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
1502
1503         /* RTL2832P devices: */
1504         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1505                 &rtl2832u_props, "Astrometa DVB-T2", NULL) },
1506         { }
1507 };
1508 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1509
1510 static struct usb_driver rtl28xxu_usb_driver = {
1511         .name = KBUILD_MODNAME,
1512         .id_table = rtl28xxu_id_table,
1513         .probe = dvb_usbv2_probe,
1514         .disconnect = dvb_usbv2_disconnect,
1515         .suspend = dvb_usbv2_suspend,
1516         .resume = dvb_usbv2_resume,
1517         .reset_resume = dvb_usbv2_reset_resume,
1518         .no_dynamic_id = 1,
1519         .soft_unbind = 1,
1520 };
1521
1522 module_usb_driver(rtl28xxu_usb_driver);
1523
1524 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1525 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1526 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1527 MODULE_LICENSE("GPL");