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 /*
  39  * RTL2832_SDR module is in staging. That logic is added in order to avoid any
  40  * hard dependency to drivers/staging/ directory as we want compile mainline
  41  * driver even whole staging directory is missing.
  42  */
  43 #include <media/v4l2-subdev.h>
  44
  45 #if IS_ENABLED(CONFIG_DVB_RTL2832_SDR)
  46 struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
  47         struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
  48         struct v4l2_subdev *sd);
  49 #else
  50 static inline struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
  51         struct i2c_adapter *i2c, const struct rtl2832_config *cfg,
  52         struct v4l2_subdev *sd)
  53 {
  54         return NULL;
  55 }
  56 #endif
  57
  58 #ifdef CONFIG_MEDIA_ATTACH
  59 #define dvb_attach_sdr(FUNCTION, ARGS...) ({ \
  60         void *__r = NULL; \
  61         typeof(&FUNCTION) __a = symbol_request(FUNCTION); \
  62         if (__a) { \
  63                 __r = (void *) __a(ARGS); \
  64                 if (__r == NULL) \
  65                         symbol_put(FUNCTION); \
  66         } \
  67         __r; \
  68 })
  69
  70 #else
  71 #define dvb_attach_sdr(FUNCTION, ARGS...) ({ \
  72         FUNCTION(ARGS); \
  73 })
  74
  75 #endif
  76
  77 static int rtl28xxu_disable_rc;
  78 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
  79 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
  80 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  81
  82 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  83 {
  84         int ret;
  85         unsigned int pipe;
  86         u8 requesttype;
  87         u8 *buf;
  88
  89         buf = kmalloc(req->size, GFP_KERNEL);
  90         if (!buf) {
  91                 ret = -ENOMEM;
  92                 goto err;
  93         }
  94
  95         if (req->index & CMD_WR_FLAG) {
  96                 /* write */
  97                 memcpy(buf, req->data, req->size);
  98                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  99                 pipe = usb_sndctrlpipe(d->udev, 0);
 100         } else {
 101                 /* read */
 102                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
 103                 pipe = usb_rcvctrlpipe(d->udev, 0);
 104         }
 105
 106         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
 107                         req->index, buf, req->size, 1000);
 108
 109         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
 110                         req->index, buf, req->size);
 111
 112         if (ret > 0)
 113                 ret = 0;
 114
 115         /* read request, copy returned data to return buf */
 116         if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
 117                 memcpy(req->data, buf, req->size);
 118
 119         kfree(buf);
 120
 121         if (ret)
 122                 goto err;
 123
 124         return ret;
 125 err:
 126         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 127         return ret;
 128 }
 129
 130 static int rtl28xx_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 131 {
 132         struct rtl28xxu_req req;
 133
 134         if (reg < 0x3000)
 135                 req.index = CMD_USB_WR;
 136         else if (reg < 0x4000)
 137                 req.index = CMD_SYS_WR;
 138         else
 139                 req.index = CMD_IR_WR;
 140
 141         req.value = reg;
 142         req.size = len;
 143         req.data = val;
 144
 145         return rtl28xxu_ctrl_msg(d, &req);
 146 }
 147
 148 static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
 149 {
 150         struct rtl28xxu_req req;
 151
 152         if (reg < 0x3000)
 153                 req.index = CMD_USB_RD;
 154         else if (reg < 0x4000)
 155                 req.index = CMD_SYS_RD;
 156         else
 157                 req.index = CMD_IR_RD;
 158
 159         req.value = reg;
 160         req.size = len;
 161         req.data = val;
 162
 163         return rtl28xxu_ctrl_msg(d, &req);
 164 }
 165
 166 static int rtl28xx_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 167 {
 168         return rtl28xx_wr_regs(d, reg, &val, 1);
 169 }
 170
 171 static int rtl28xx_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 172 {
 173         return rtl2831_rd_regs(d, reg, val, 1);
 174 }
 175
 176 static int rtl28xx_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 177                 u8 mask)
 178 {
 179         int ret;
 180         u8 tmp;
 181
 182         /* no need for read if whole reg is written */
 183         if (mask != 0xff) {
 184                 ret = rtl28xx_rd_reg(d, reg, &tmp);
 185                 if (ret)
 186                         return ret;
 187
 188                 val &= mask;
 189                 tmp &= ~mask;
 190                 val |= tmp;
 191         }
 192
 193         return rtl28xx_wr_reg(d, reg, val);
 194 }
 195
 196 /* I2C */
 197 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 198         int num)
 199 {
 200         int ret;
 201         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 202         struct rtl28xxu_priv *priv = d->priv;
 203         struct rtl28xxu_req req;
 204
 205         /*
 206          * It is not known which are real I2C bus xfer limits, but testing
 207          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 208          * TODO: find out RTL2832U lens
 209          */
 210
 211         /*
 212          * I2C adapter logic looks rather complicated due to fact it handles
 213          * three different access methods. Those methods are;
 214          * 1) integrated demod access
 215          * 2) old I2C access
 216          * 3) new I2C access
 217          *
 218          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 219          * requests but there is two reasons why not use it always;
 220          * 1) It is most expensive, usually two USB messages are needed
 221          * 2) At least RTL2831U does not support it
 222          *
 223          * Method 3 is needed in case of I2C write+read (typical register read)
 224          * where write is more than one byte.
 225          */
 226
 227         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 228                 return -EAGAIN;
 229
 230         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 231                 (msg[1].flags & I2C_M_RD)) {
 232                 if (msg[0].len > 24 || msg[1].len > 24) {
 233                         /* TODO: check msg[0].len max */
 234                         ret = -EOPNOTSUPP;
 235                         goto err_mutex_unlock;
 236                 } else if (msg[0].addr == 0x10) {
 237                         /* method 1 - integrated demod */
 238                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 239                         req.index = CMD_DEMOD_RD | priv->page;
 240                         req.size = msg[1].len;
 241                         req.data = &msg[1].buf[0];
 242                         ret = rtl28xxu_ctrl_msg(d, &req);
 243                 } else if (msg[0].len < 2) {
 244                         /* method 2 - old I2C */
 245                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 246                         req.index = CMD_I2C_RD;
 247                         req.size = msg[1].len;
 248                         req.data = &msg[1].buf[0];
 249                         ret = rtl28xxu_ctrl_msg(d, &req);
 250                 } else {
 251                         /* method 3 - new I2C */
 252                         req.value = (msg[0].addr << 1);
 253                         req.index = CMD_I2C_DA_WR;
 254                         req.size = msg[0].len;
 255                         req.data = msg[0].buf;
 256                         ret = rtl28xxu_ctrl_msg(d, &req);
 257                         if (ret)
 258                                 goto err_mutex_unlock;
 259
 260                         req.value = (msg[0].addr << 1);
 261                         req.index = CMD_I2C_DA_RD;
 262                         req.size = msg[1].len;
 263                         req.data = msg[1].buf;
 264                         ret = rtl28xxu_ctrl_msg(d, &req);
 265                 }
 266         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 267                 if (msg[0].len > 22) {
 268                         /* TODO: check msg[0].len max */
 269                         ret = -EOPNOTSUPP;
 270                         goto err_mutex_unlock;
 271                 } else if (msg[0].addr == 0x10) {
 272                         /* method 1 - integrated demod */
 273                         if (msg[0].buf[0] == 0x00) {
 274                                 /* save demod page for later demod access */
 275                                 priv->page = msg[0].buf[1];
 276                                 ret = 0;
 277                         } else {
 278                                 req.value = (msg[0].buf[0] << 8) |
 279                                         (msg[0].addr << 1);
 280                                 req.index = CMD_DEMOD_WR | priv->page;
 281                                 req.size = msg[0].len-1;
 282                                 req.data = &msg[0].buf[1];
 283                                 ret = rtl28xxu_ctrl_msg(d, &req);
 284                         }
 285                 } else if (msg[0].len < 23) {
 286                         /* method 2 - old I2C */
 287                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 288                         req.index = CMD_I2C_WR;
 289                         req.size = msg[0].len-1;
 290                         req.data = &msg[0].buf[1];
 291                         ret = rtl28xxu_ctrl_msg(d, &req);
 292                 } else {
 293                         /* method 3 - new I2C */
 294                         req.value = (msg[0].addr << 1);
 295                         req.index = CMD_I2C_DA_WR;
 296                         req.size = msg[0].len;
 297                         req.data = msg[0].buf;
 298                         ret = rtl28xxu_ctrl_msg(d, &req);
 299                 }
 300         } else {
 301                 ret = -EINVAL;
 302         }
 303
 304 err_mutex_unlock:
 305         mutex_unlock(&d->i2c_mutex);
 306
 307         return ret ? ret : num;
 308 }
 309
 310 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 311 {
 312         return I2C_FUNC_I2C;
 313 }
 314
 315 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 316         .master_xfer   = rtl28xxu_i2c_xfer,
 317         .functionality = rtl28xxu_i2c_func,
 318 };
 319
 320 static int rtl2831u_read_config(struct dvb_usb_device *d)
 321 {
 322         struct rtl28xxu_priv *priv = d_to_priv(d);
 323         int ret;
 324         u8 buf[1];
 325         /* open RTL2831U/RTL2830 I2C gate */
 326         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 327         /* tuner probes */
 328         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 329         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 330
 331         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 332
 333         /*
 334          * RTL2831U GPIOs
 335          * =========================================================
 336          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 337          * GPIO2 | LED     | 0 off | 1 on  |
 338          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 339          */
 340
 341         /* GPIO direction */
 342         ret = rtl28xx_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 343         if (ret)
 344                 goto err;
 345
 346         /* enable as output GPIO0, GPIO2, GPIO4 */
 347         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 348         if (ret)
 349                 goto err;
 350
 351         /*
 352          * Probe used tuner. We need to know used tuner before demod attach
 353          * since there is some demod params needed to set according to tuner.
 354          */
 355
 356         /* demod needs some time to wake up */
 357         msleep(20);
 358
 359         priv->tuner_name = "NONE";
 360
 361         /* open demod I2C gate */
 362         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 363         if (ret)
 364                 goto err;
 365
 366         /* check QT1010 ID(?) register; reg=0f val=2c */
 367         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 368         if (ret == 0 && buf[0] == 0x2c) {
 369                 priv->tuner = TUNER_RTL2830_QT1010;
 370                 priv->tuner_name = "QT1010";
 371                 goto found;
 372         }
 373
 374         /* open demod I2C gate */
 375         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 376         if (ret)
 377                 goto err;
 378
 379         /* check MT2060 ID register; reg=00 val=63 */
 380         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 381         if (ret == 0 && buf[0] == 0x63) {
 382                 priv->tuner = TUNER_RTL2830_MT2060;
 383                 priv->tuner_name = "MT2060";
 384                 goto found;
 385         }
 386
 387         /* assume MXL5005S */
 388         priv->tuner = TUNER_RTL2830_MXL5005S;
 389         priv->tuner_name = "MXL5005S";
 390         goto found;
 391
 392 found:
 393         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 394
 395         return 0;
 396 err:
 397         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 398         return ret;
 399 }
 400
 401 static int rtl2832u_read_config(struct dvb_usb_device *d)
 402 {
 403         struct rtl28xxu_priv *priv = d_to_priv(d);
 404         int ret;
 405         u8 buf[2];
 406         /* open RTL2832U/RTL2832 I2C gate */
 407         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 408         /* close RTL2832U/RTL2832 I2C gate */
 409         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 410         /* tuner probes */
 411         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 412         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 413         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 414         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 415         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 416         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 417         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 418         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 419         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 420         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 421         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 422         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 423
 424         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 425
 426         /* enable GPIO3 and GPIO6 as output */
 427         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 428         if (ret)
 429                 goto err;
 430
 431         ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 432         if (ret)
 433                 goto err;
 434
 435         /*
 436          * Probe used tuner. We need to know used tuner before demod attach
 437          * since there is some demod params needed to set according to tuner.
 438          */
 439
 440         /* open demod I2C gate */
 441         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 442         if (ret)
 443                 goto err;
 444
 445         priv->tuner_name = "NONE";
 446
 447         /* check FC0012 ID register; reg=00 val=a1 */
 448         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 449         if (ret == 0 && buf[0] == 0xa1) {
 450                 priv->tuner = TUNER_RTL2832_FC0012;
 451                 priv->tuner_name = "FC0012";
 452                 goto found;
 453         }
 454
 455         /* check FC0013 ID register; reg=00 val=a3 */
 456         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 457         if (ret == 0 && buf[0] == 0xa3) {
 458                 priv->tuner = TUNER_RTL2832_FC0013;
 459                 priv->tuner_name = "FC0013";
 460                 goto found;
 461         }
 462
 463         /* check MT2266 ID register; reg=00 val=85 */
 464         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 465         if (ret == 0 && buf[0] == 0x85) {
 466                 priv->tuner = TUNER_RTL2832_MT2266;
 467                 priv->tuner_name = "MT2266";
 468                 goto found;
 469         }
 470
 471         /* check FC2580 ID register; reg=01 val=56 */
 472         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 473         if (ret == 0 && buf[0] == 0x56) {
 474                 priv->tuner = TUNER_RTL2832_FC2580;
 475                 priv->tuner_name = "FC2580";
 476                 goto found;
 477         }
 478
 479         /* check MT2063 ID register; reg=00 val=9e || 9c */
 480         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 481         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 482                 priv->tuner = TUNER_RTL2832_MT2063;
 483                 priv->tuner_name = "MT2063";
 484                 goto found;
 485         }
 486
 487         /* check MAX3543 ID register; reg=00 val=38 */
 488         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 489         if (ret == 0 && buf[0] == 0x38) {
 490                 priv->tuner = TUNER_RTL2832_MAX3543;
 491                 priv->tuner_name = "MAX3543";
 492                 goto found;
 493         }
 494
 495         /* check TUA9001 ID register; reg=7e val=2328 */
 496         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 497         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 498                 priv->tuner = TUNER_RTL2832_TUA9001;
 499                 priv->tuner_name = "TUA9001";
 500                 goto found;
 501         }
 502
 503         /* check MXL5007R ID register; reg=d9 val=14 */
 504         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 505         if (ret == 0 && buf[0] == 0x14) {
 506                 priv->tuner = TUNER_RTL2832_MXL5007T;
 507                 priv->tuner_name = "MXL5007T";
 508                 goto found;
 509         }
 510
 511         /* check E4000 ID register; reg=02 val=40 */
 512         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 513         if (ret == 0 && buf[0] == 0x40) {
 514                 priv->tuner = TUNER_RTL2832_E4000;
 515                 priv->tuner_name = "E4000";
 516                 goto found;
 517         }
 518
 519         /* check TDA18272 ID register; reg=00 val=c760  */
 520         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 521         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 522                 priv->tuner = TUNER_RTL2832_TDA18272;
 523                 priv->tuner_name = "TDA18272";
 524                 goto found;
 525         }
 526
 527         /* check R820T ID register; reg=00 val=69 */
 528         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 529         if (ret == 0 && buf[0] == 0x69) {
 530                 priv->tuner = TUNER_RTL2832_R820T;
 531                 priv->tuner_name = "R820T";
 532                 goto found;
 533         }
 534
 535         /* check R828D ID register; reg=00 val=69 */
 536         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 537         if (ret == 0 && buf[0] == 0x69) {
 538                 priv->tuner = TUNER_RTL2832_R828D;
 539                 priv->tuner_name = "R828D";
 540                 goto found;
 541         }
 542
 543
 544 found:
 545         dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 546
 547         /* close demod I2C gate */
 548         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 549         if (ret < 0)
 550                 goto err;
 551
 552         return 0;
 553 err:
 554         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 555         return ret;
 556 }
 557
 558 static const struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
 559         .i2c_addr = 0x10, /* 0x20 */
 560         .xtal = 28800000,
 561         .ts_mode = 0,
 562         .spec_inv = 1,
 563         .vtop = 0x20,
 564         .krf = 0x04,
 565         .agc_targ_val = 0x2d,
 566
 567 };
 568
 569 static const struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
 570         .i2c_addr = 0x10, /* 0x20 */
 571         .xtal = 28800000,
 572         .ts_mode = 0,
 573         .spec_inv = 1,
 574         .vtop = 0x20,
 575         .krf = 0x04,
 576         .agc_targ_val = 0x2d,
 577 };
 578
 579 static const struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
 580         .i2c_addr = 0x10, /* 0x20 */
 581         .xtal = 28800000,
 582         .ts_mode = 0,
 583         .spec_inv = 0,
 584         .vtop = 0x3f,
 585         .krf = 0x04,
 586         .agc_targ_val = 0x3e,
 587 };
 588
 589 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 590 {
 591         struct dvb_usb_device *d = adap_to_d(adap);
 592         struct rtl28xxu_priv *priv = d_to_priv(d);
 593         const struct rtl2830_config *rtl2830_config;
 594         int ret;
 595
 596         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 597
 598         switch (priv->tuner) {
 599         case TUNER_RTL2830_QT1010:
 600                 rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
 601                 break;
 602         case TUNER_RTL2830_MT2060:
 603                 rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
 604                 break;
 605         case TUNER_RTL2830_MXL5005S:
 606                 rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
 607                 break;
 608         default:
 609                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 610                                 KBUILD_MODNAME, priv->tuner_name);
 611                 ret = -ENODEV;
 612                 goto err;
 613         }
 614
 615         /* attach demodulator */
 616         adap->fe[0] = dvb_attach(rtl2830_attach, rtl2830_config, &d->i2c_adap);
 617         if (!adap->fe[0]) {
 618                 ret = -ENODEV;
 619                 goto err;
 620         }
 621
 622         return 0;
 623 err:
 624         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 625         return ret;
 626 }
 627
 628 static const struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = {
 629         .i2c_addr = 0x10, /* 0x20 */
 630         .xtal = 28800000,
 631         .tuner = TUNER_RTL2832_FC0012
 632 };
 633
 634 static const struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = {
 635         .i2c_addr = 0x10, /* 0x20 */
 636         .xtal = 28800000,
 637         .tuner = TUNER_RTL2832_FC0013
 638 };
 639
 640 static const struct rtl2832_config rtl28xxu_rtl2832_tua9001_config = {
 641         .i2c_addr = 0x10, /* 0x20 */
 642         .xtal = 28800000,
 643         .tuner = TUNER_RTL2832_TUA9001,
 644 };
 645
 646 static const struct rtl2832_config rtl28xxu_rtl2832_e4000_config = {
 647         .i2c_addr = 0x10, /* 0x20 */
 648         .xtal = 28800000,
 649         .tuner = TUNER_RTL2832_E4000,
 650 };
 651
 652 static const struct rtl2832_config rtl28xxu_rtl2832_r820t_config = {
 653         .i2c_addr = 0x10,
 654         .xtal = 28800000,
 655         .tuner = TUNER_RTL2832_R820T,
 656 };
 657
 658 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 659                 int cmd, int arg)
 660 {
 661         int ret;
 662         u8 val;
 663
 664         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 665
 666         switch (cmd) {
 667         case FC_FE_CALLBACK_VHF_ENABLE:
 668                 /* set output values */
 669                 ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 670                 if (ret)
 671                         goto err;
 672
 673                 if (arg)
 674                         val &= 0xbf; /* set GPIO6 low */
 675                 else
 676                         val |= 0x40; /* set GPIO6 high */
 677
 678
 679                 ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 680                 if (ret)
 681                         goto err;
 682                 break;
 683         default:
 684                 ret = -EINVAL;
 685                 goto err;
 686         }
 687         return 0;
 688 err:
 689         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 690         return ret;
 691 }
 692
 693 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 694                 int cmd, int arg)
 695 {
 696         int ret;
 697         u8 val;
 698
 699         dev_dbg(&d->udev->dev, "%s: cmd=%d arg=%d\n", __func__, cmd, arg);
 700
 701         /*
 702          * CEN     always enabled by hardware wiring
 703          * RESETN  GPIO4
 704          * RXEN    GPIO1
 705          */
 706
 707         switch (cmd) {
 708         case TUA9001_CMD_RESETN:
 709                 if (arg)
 710                         val = (1 << 4);
 711                 else
 712                         val = (0 << 4);
 713
 714                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 715                 if (ret)
 716                         goto err;
 717                 break;
 718         case TUA9001_CMD_RXEN:
 719                 if (arg)
 720                         val = (1 << 1);
 721                 else
 722                         val = (0 << 1);
 723
 724                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 725                 if (ret)
 726                         goto err;
 727                 break;
 728         }
 729
 730         return 0;
 731 err:
 732         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 733         return ret;
 734 }
 735
 736 static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg)
 737 {
 738         struct rtl28xxu_priv *priv = d->priv;
 739
 740         switch (priv->tuner) {
 741         case TUNER_RTL2832_FC0012:
 742                 return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 743         case TUNER_RTL2832_TUA9001:
 744                 return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 745         default:
 746                 break;
 747         }
 748
 749         return 0;
 750 }
 751
 752 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 753                 int cmd, int arg)
 754 {
 755         struct i2c_adapter *adap = adapter_priv;
 756         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 757
 758         dev_dbg(&d->udev->dev, "%s: component=%d cmd=%d arg=%d\n",
 759                         __func__, component, cmd, arg);
 760
 761         switch (component) {
 762         case DVB_FRONTEND_COMPONENT_TUNER:
 763                 return rtl2832u_tuner_callback(d, cmd, arg);
 764         default:
 765                 break;
 766         }
 767
 768         return 0;
 769 }
 770
 771 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 772 {
 773         int ret;
 774         struct dvb_usb_device *d = adap_to_d(adap);
 775         struct rtl28xxu_priv *priv = d_to_priv(d);
 776         const struct rtl2832_config *rtl2832_config;
 777
 778         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 779
 780         switch (priv->tuner) {
 781         case TUNER_RTL2832_FC0012:
 782                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 783                 break;
 784         case TUNER_RTL2832_FC0013:
 785                 rtl2832_config = &rtl28xxu_rtl2832_fc0013_config;
 786                 break;
 787         case TUNER_RTL2832_FC2580:
 788                 /* FIXME: do not abuse fc0012 settings */
 789                 rtl2832_config = &rtl28xxu_rtl2832_fc0012_config;
 790                 break;
 791         case TUNER_RTL2832_TUA9001:
 792                 rtl2832_config = &rtl28xxu_rtl2832_tua9001_config;
 793                 break;
 794         case TUNER_RTL2832_E4000:
 795                 rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
 796                 break;
 797         case TUNER_RTL2832_R820T:
 798         case TUNER_RTL2832_R828D:
 799                 rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
 800                 break;
 801         default:
 802                 dev_err(&d->udev->dev, "%s: unknown tuner=%s\n",
 803                                 KBUILD_MODNAME, priv->tuner_name);
 804                 ret = -ENODEV;
 805                 goto err;
 806         }
 807
 808         /* attach demodulator */
 809         adap->fe[0] = dvb_attach(rtl2832_attach, rtl2832_config, &d->i2c_adap);
 810         if (!adap->fe[0]) {
 811                 ret = -ENODEV;
 812                 goto err;
 813         }
 814
 815         /* RTL2832 I2C repeater */
 816         priv->demod_i2c_adapter = rtl2832_get_i2c_adapter(adap->fe[0]);
 817
 818         /* set fe callback */
 819         adap->fe[0]->callback = rtl2832u_frontend_callback;
 820
 821         return 0;
 822 err:
 823         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 824         return ret;
 825 }
 826
 827 static struct qt1010_config rtl28xxu_qt1010_config = {
 828         .i2c_address = 0x62, /* 0xc4 */
 829 };
 830
 831 static struct mt2060_config rtl28xxu_mt2060_config = {
 832         .i2c_address = 0x60, /* 0xc0 */
 833         .clock_out = 0,
 834 };
 835
 836 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
 837         .i2c_address     = 0x63, /* 0xc6 */
 838         .if_freq         = IF_FREQ_4570000HZ,
 839         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
 840         .agc_mode        = MXL_SINGLE_AGC,
 841         .tracking_filter = MXL_TF_C_H,
 842         .rssi_enable     = MXL_RSSI_ENABLE,
 843         .cap_select      = MXL_CAP_SEL_ENABLE,
 844         .div_out         = MXL_DIV_OUT_4,
 845         .clock_out       = MXL_CLOCK_OUT_DISABLE,
 846         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
 847         .top             = MXL5005S_TOP_25P2,
 848         .mod_mode        = MXL_DIGITAL_MODE,
 849         .if_mode         = MXL_ZERO_IF,
 850         .AgcMasterByte   = 0x00,
 851 };
 852
 853 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
 854 {
 855         int ret;
 856         struct dvb_usb_device *d = adap_to_d(adap);
 857         struct rtl28xxu_priv *priv = d_to_priv(d);
 858         struct i2c_adapter *rtl2830_tuner_i2c;
 859         struct dvb_frontend *fe;
 860
 861         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 862
 863         /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
 864         rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe[0]);
 865
 866         switch (priv->tuner) {
 867         case TUNER_RTL2830_QT1010:
 868                 fe = dvb_attach(qt1010_attach, adap->fe[0],
 869                                 rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
 870                 break;
 871         case TUNER_RTL2830_MT2060:
 872                 fe = dvb_attach(mt2060_attach, adap->fe[0],
 873                                 rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
 874                                 1220);
 875                 break;
 876         case TUNER_RTL2830_MXL5005S:
 877                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
 878                                 rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
 879                 break;
 880         default:
 881                 fe = NULL;
 882                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
 883                                 priv->tuner);
 884         }
 885
 886         if (fe == NULL) {
 887                 ret = -ENODEV;
 888                 goto err;
 889         }
 890
 891         return 0;
 892 err:
 893         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
 894         return ret;
 895 }
 896
 897 static const struct fc2580_config rtl2832u_fc2580_config = {
 898         .i2c_addr = 0x56,
 899         .clock = 16384000,
 900 };
 901
 902 static struct tua9001_config rtl2832u_tua9001_config = {
 903         .i2c_addr = 0x60,
 904 };
 905
 906 static const struct fc0012_config rtl2832u_fc0012_config = {
 907         .i2c_address = 0x63, /* 0xc6 >> 1 */
 908         .xtal_freq = FC_XTAL_28_8_MHZ,
 909 };
 910
 911 static const struct r820t_config rtl2832u_r820t_config = {
 912         .i2c_addr = 0x1a,
 913         .xtal = 28800000,
 914         .max_i2c_msg_len = 2,
 915         .rafael_chip = CHIP_R820T,
 916 };
 917
 918 static const struct r820t_config rtl2832u_r828d_config = {
 919         .i2c_addr = 0x3a,
 920         .xtal = 16000000,
 921         .max_i2c_msg_len = 2,
 922         .rafael_chip = CHIP_R828D,
 923 };
 924
 925 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 926 {
 927         int ret;
 928         struct dvb_usb_device *d = adap_to_d(adap);
 929         struct rtl28xxu_priv *priv = d_to_priv(d);
 930         struct dvb_frontend *fe = NULL;
 931         struct i2c_board_info info;
 932         struct i2c_client *client;
 933
 934         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 935
 936         memset(&info, 0, sizeof(struct i2c_board_info));
 937
 938         switch (priv->tuner) {
 939         case TUNER_RTL2832_FC0012:
 940                 fe = dvb_attach(fc0012_attach, adap->fe[0],
 941                         &d->i2c_adap, &rtl2832u_fc0012_config);
 942
 943                 /* since fc0012 includs reading the signal strength delegate
 944                  * that to the tuner driver */
 945                 adap->fe[0]->ops.read_signal_strength =
 946                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 947
 948                 /* attach SDR */
 949                 dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
 950                                 &rtl28xxu_rtl2832_fc0012_config, NULL);
 951                 break;
 952         case TUNER_RTL2832_FC0013:
 953                 fe = dvb_attach(fc0013_attach, adap->fe[0],
 954                         &d->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
 955
 956                 /* fc0013 also supports signal strength reading */
 957                 adap->fe[0]->ops.read_signal_strength =
 958                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
 959
 960                 /* attach SDR */
 961                 dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
 962                                 &rtl28xxu_rtl2832_fc0013_config, NULL);
 963                 break;
 964         case TUNER_RTL2832_E4000: {
 965                         struct v4l2_subdev *sd;
 966                         struct i2c_adapter *i2c_adap_internal =
 967                                         rtl2832_get_private_i2c_adapter(adap->fe[0]);
 968                         struct e4000_config e4000_config = {
 969                                 .fe = adap->fe[0],
 970                                 .clock = 28800000,
 971                         };
 972
 973                         strlcpy(info.type, "e4000", I2C_NAME_SIZE);
 974                         info.addr = 0x64;
 975                         info.platform_data = &e4000_config;
 976
 977                         request_module(info.type);
 978                         client = i2c_new_device(priv->demod_i2c_adapter, &info);
 979                         if (client == NULL || client->dev.driver == NULL)
 980                                 break;
 981
 982                         if (!try_module_get(client->dev.driver->owner)) {
 983                                 i2c_unregister_device(client);
 984                                 break;
 985                         }
 986
 987                         priv->client = client;
 988                         sd = i2c_get_clientdata(client);
 989                         i2c_set_adapdata(i2c_adap_internal, d);
 990
 991                         /* attach SDR */
 992                         dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0],
 993                                         i2c_adap_internal,
 994                                         &rtl28xxu_rtl2832_e4000_config, sd);
 995                 }
 996                 break;
 997         case TUNER_RTL2832_FC2580:
 998                 fe = dvb_attach(fc2580_attach, adap->fe[0], &d->i2c_adap,
 999                                 &rtl2832u_fc2580_config);
1000                 break;
1001         case TUNER_RTL2832_TUA9001:
1002                 /* enable GPIO1 and GPIO4 as output */
1003                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1004                 if (ret)
1005                         goto err;
1006
1007                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1008                 if (ret)
1009                         goto err;
1010
1011                 fe = dvb_attach(tua9001_attach, adap->fe[0], &d->i2c_adap,
1012                                 &rtl2832u_tua9001_config);
1013                 break;
1014         case TUNER_RTL2832_R820T:
1015                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
1016                                 &rtl2832u_r820t_config);
1017
1018                 /* Use tuner to get the signal strength */
1019                 adap->fe[0]->ops.read_signal_strength =
1020                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1021
1022                 /* attach SDR */
1023                 dvb_attach_sdr(rtl2832_sdr_attach, adap->fe[0], &d->i2c_adap,
1024                                 &rtl28xxu_rtl2832_r820t_config, NULL);
1025                 break;
1026         case TUNER_RTL2832_R828D:
1027                 /* power off mn88472 demod on GPIO0 */
1028                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
1029                 if (ret)
1030                         goto err;
1031
1032                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
1033                 if (ret)
1034                         goto err;
1035
1036                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
1037                 if (ret)
1038                         goto err;
1039
1040                 fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
1041                                 &rtl2832u_r828d_config);
1042
1043                 /* Use tuner to get the signal strength */
1044                 adap->fe[0]->ops.read_signal_strength =
1045                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1046                 break;
1047         default:
1048                 dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME,
1049                                 priv->tuner);
1050         }
1051
1052         if (fe == NULL && priv->client == NULL) {
1053                 ret = -ENODEV;
1054                 goto err;
1055         }
1056
1057         return 0;
1058 err:
1059         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1060         return ret;
1061 }
1062
1063 static int rtl28xxu_init(struct dvb_usb_device *d)
1064 {
1065         int ret;
1066         u8 val;
1067
1068         dev_dbg(&d->udev->dev, "%s:\n", __func__);
1069
1070         /* init USB endpoints */
1071         ret = rtl28xx_rd_reg(d, USB_SYSCTL_0, &val);
1072         if (ret)
1073                 goto err;
1074
1075         /* enable DMA and Full Packet Mode*/
1076         val |= 0x09;
1077         ret = rtl28xx_wr_reg(d, USB_SYSCTL_0, val);
1078         if (ret)
1079                 goto err;
1080
1081         /* set EPA maximum packet size to 0x0200 */
1082         ret = rtl28xx_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1083         if (ret)
1084                 goto err;
1085
1086         /* change EPA FIFO length */
1087         ret = rtl28xx_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1088         if (ret)
1089                 goto err;
1090
1091         return ret;
1092 err:
1093         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1094         return ret;
1095 }
1096
1097 static void rtl28xxu_exit(struct dvb_usb_device *d)
1098 {
1099         struct rtl28xxu_priv *priv = d->priv;
1100         struct i2c_client *client = priv->client;
1101
1102         dev_dbg(&d->udev->dev, "%s:\n", __func__);
1103
1104         /* remove I2C tuner */
1105         if (client) {
1106                 module_put(client->dev.driver->owner);
1107                 i2c_unregister_device(client);
1108         }
1109
1110         return;
1111 }
1112
1113 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1114 {
1115         int ret;
1116         u8 gpio, sys0, epa_ctl[2];
1117
1118         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1119
1120         /* demod adc */
1121         ret = rtl28xx_rd_reg(d, SYS_SYS0, &sys0);
1122         if (ret)
1123                 goto err;
1124
1125         /* tuner power, read GPIOs */
1126         ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1127         if (ret)
1128                 goto err;
1129
1130         dev_dbg(&d->udev->dev, "%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1131                         sys0, gpio);
1132
1133         if (onoff) {
1134                 gpio |= 0x01; /* GPIO0 = 1 */
1135                 gpio &= (~0x10); /* GPIO4 = 0 */
1136                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1137                 sys0 = sys0 & 0x0f;
1138                 sys0 |= 0xe0;
1139                 epa_ctl[0] = 0x00; /* clear stall */
1140                 epa_ctl[1] = 0x00; /* clear reset */
1141         } else {
1142                 gpio &= (~0x01); /* GPIO0 = 0 */
1143                 gpio |= 0x10; /* GPIO4 = 1 */
1144                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1145                 sys0 = sys0 & (~0xc0);
1146                 epa_ctl[0] = 0x10; /* set stall */
1147                 epa_ctl[1] = 0x02; /* set reset */
1148         }
1149
1150         dev_dbg(&d->udev->dev, "%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__,
1151                         sys0, gpio);
1152
1153         /* demod adc */
1154         ret = rtl28xx_wr_reg(d, SYS_SYS0, sys0);
1155         if (ret)
1156                 goto err;
1157
1158         /* tuner power, write GPIOs */
1159         ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1160         if (ret)
1161                 goto err;
1162
1163         /* streaming EP: stall & reset */
1164         ret = rtl28xx_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1165         if (ret)
1166                 goto err;
1167
1168         if (onoff)
1169                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1170
1171         return ret;
1172 err:
1173         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1174         return ret;
1175 }
1176
1177 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1178 {
1179         int ret;
1180
1181         dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
1182
1183         if (onoff) {
1184                 /* GPIO3=1, GPIO4=0 */
1185                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1186                 if (ret)
1187                         goto err;
1188
1189                 /* suspend? */
1190                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1191                 if (ret)
1192                         goto err;
1193
1194                 /* enable PLL */
1195                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1196                 if (ret)
1197                         goto err;
1198
1199                 /* disable reset */
1200                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1201                 if (ret)
1202                         goto err;
1203
1204                 mdelay(5);
1205
1206                 /* enable ADC */
1207                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x48, 0x48);
1208                 if (ret)
1209                         goto err;
1210
1211                 /* streaming EP: clear stall & reset */
1212                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1213                 if (ret)
1214                         goto err;
1215
1216                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1217                 if (ret)
1218                         goto err;
1219         } else {
1220                 /* GPIO4=1 */
1221                 ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1222                 if (ret)
1223                         goto err;
1224
1225                 /* disable ADC */
1226                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x48);
1227                 if (ret)
1228                         goto err;
1229
1230                 /* disable PLL */
1231                 ret = rtl28xx_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1232                 if (ret)
1233                         goto err;
1234
1235                 /* streaming EP: set stall & reset */
1236                 ret = rtl28xx_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1237                 if (ret)
1238                         goto err;
1239         }
1240
1241         return ret;
1242 err:
1243         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1244         return ret;
1245 }
1246
1247 #if IS_ENABLED(CONFIG_RC_CORE)
1248 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1249 {
1250         int ret, i;
1251         struct rtl28xxu_priv *priv = d->priv;
1252         u8 buf[5];
1253         u32 rc_code;
1254         struct rtl28xxu_reg_val rc_nec_tab[] = {
1255                 { 0x3033, 0x80 },
1256                 { 0x3020, 0x43 },
1257                 { 0x3021, 0x16 },
1258                 { 0x3022, 0x16 },
1259                 { 0x3023, 0x5a },
1260                 { 0x3024, 0x2d },
1261                 { 0x3025, 0x16 },
1262                 { 0x3026, 0x01 },
1263                 { 0x3028, 0xb0 },
1264                 { 0x3029, 0x04 },
1265                 { 0x302c, 0x88 },
1266                 { 0x302e, 0x13 },
1267                 { 0x3030, 0xdf },
1268                 { 0x3031, 0x05 },
1269         };
1270
1271         /* init remote controller */
1272         if (!priv->rc_active) {
1273                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1274                         ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg,
1275                                         rc_nec_tab[i].val);
1276                         if (ret)
1277                                 goto err;
1278                 }
1279                 priv->rc_active = true;
1280         }
1281
1282         ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
1283         if (ret)
1284                 goto err;
1285
1286         if (buf[4] & 0x01) {
1287                 if (buf[2] == (u8) ~buf[3]) {
1288                         if (buf[0] == (u8) ~buf[1]) {
1289                                 /* NEC standard (16 bit) */
1290                                 rc_code = buf[0] << 8 | buf[2];
1291                         } else {
1292                                 /* NEC extended (24 bit) */
1293                                 rc_code = buf[0] << 16 |
1294                                                 buf[1] << 8 | buf[2];
1295                         }
1296                 } else {
1297                         /* NEC full (32 bit) */
1298                         rc_code = buf[0] << 24 | buf[1] << 16 |
1299                                         buf[2] << 8 | buf[3];
1300                 }
1301
1302                 rc_keydown(d->rc_dev, rc_code, 0);
1303
1304                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1305                 if (ret)
1306                         goto err;
1307
1308                 /* repeated intentionally to avoid extra keypress */
1309                 ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1);
1310                 if (ret)
1311                         goto err;
1312         }
1313
1314         return ret;
1315 err:
1316         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1317         return ret;
1318 }
1319
1320 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1321                 struct dvb_usb_rc *rc)
1322 {
1323         rc->map_name = RC_MAP_EMPTY;
1324         rc->allowed_protos = RC_BIT_NEC;
1325         rc->query = rtl2831u_rc_query;
1326         rc->interval = 400;
1327
1328         return 0;
1329 }
1330
1331 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1332 {
1333         int ret, i, len;
1334         struct rtl28xxu_priv *priv = d->priv;
1335         struct ir_raw_event ev;
1336         u8 buf[128];
1337         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1338                 {IR_RX_IF,               0x03, 0xff},
1339                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1340                 {IR_RX_CTRL,             0x80, 0xff},
1341         };
1342
1343         /* init remote controller */
1344         if (!priv->rc_active) {
1345                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1346                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1347                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1348                         {USB_CTRL,               0x20, 0x20},
1349                         {SYS_GPIO_DIR,           0x00, 0x08},
1350                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1351                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1352                         {IR_MAX_DURATION0,       0xd0, 0xff},
1353                         {IR_MAX_DURATION1,       0x07, 0xff},
1354                         {IR_IDLE_LEN0,           0xc0, 0xff},
1355                         {IR_IDLE_LEN1,           0x00, 0xff},
1356                         {IR_GLITCH_LEN,          0x03, 0xff},
1357                         {IR_RX_CLK,              0x09, 0xff},
1358                         {IR_RX_CFG,              0x1c, 0xff},
1359                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1360                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1361                         {IR_RX_CTRL,             0x80, 0xff},
1362                 };
1363
1364                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1365                         ret = rtl28xx_wr_reg_mask(d, init_tab[i].reg,
1366                                         init_tab[i].val, init_tab[i].mask);
1367                         if (ret)
1368                                 goto err;
1369                 }
1370
1371                 priv->rc_active = true;
1372         }
1373
1374         ret = rtl28xx_rd_reg(d, IR_RX_IF, &buf[0]);
1375         if (ret)
1376                 goto err;
1377
1378         if (buf[0] != 0x83)
1379                 goto exit;
1380
1381         ret = rtl28xx_rd_reg(d, IR_RX_BC, &buf[0]);
1382         if (ret)
1383                 goto err;
1384
1385         len = buf[0];
1386
1387         /* read raw code from hw */
1388         ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
1389         if (ret)
1390                 goto err;
1391
1392         /* let hw receive new code */
1393         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1394                 ret = rtl28xx_wr_reg_mask(d, refresh_tab[i].reg,
1395                                 refresh_tab[i].val, refresh_tab[i].mask);
1396                 if (ret)
1397                         goto err;
1398         }
1399
1400         /* pass data to Kernel IR decoder */
1401         init_ir_raw_event(&ev);
1402
1403         for (i = 0; i < len; i++) {
1404                 ev.pulse = buf[i] >> 7;
1405                 ev.duration = 50800 * (buf[i] & 0x7f);
1406                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1407         }
1408
1409         /* 'flush' ir_raw_event_store_with_filter() */
1410         ir_raw_event_set_idle(d->rc_dev, true);
1411         ir_raw_event_handle(d->rc_dev);
1412 exit:
1413         return ret;
1414 err:
1415         dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
1416         return ret;
1417 }
1418
1419 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1420                 struct dvb_usb_rc *rc)
1421 {
1422         /* disable IR interrupts in order to avoid SDR sample loss */
1423         if (rtl28xxu_disable_rc)
1424                 return rtl28xx_wr_reg(d, IR_RX_IE, 0x00);
1425
1426         /* load empty to enable rc */
1427         if (!rc->map_name)
1428                 rc->map_name = RC_MAP_EMPTY;
1429         rc->allowed_protos = RC_BIT_ALL;
1430         rc->driver_type = RC_DRIVER_IR_RAW;
1431         rc->query = rtl2832u_rc_query;
1432         rc->interval = 400;
1433
1434         return 0;
1435 }
1436 #else
1437 #define rtl2831u_get_rc_config NULL
1438 #define rtl2832u_get_rc_config NULL
1439 #endif
1440
1441 static const struct dvb_usb_device_properties rtl2831u_props = {
1442         .driver_name = KBUILD_MODNAME,
1443         .owner = THIS_MODULE,
1444         .adapter_nr = adapter_nr,
1445         .size_of_priv = sizeof(struct rtl28xxu_priv),
1446
1447         .power_ctrl = rtl2831u_power_ctrl,
1448         .i2c_algo = &rtl28xxu_i2c_algo,
1449         .read_config = rtl2831u_read_config,
1450         .frontend_attach = rtl2831u_frontend_attach,
1451         .tuner_attach = rtl2831u_tuner_attach,
1452         .init = rtl28xxu_init,
1453         .get_rc_config = rtl2831u_get_rc_config,
1454
1455         .num_adapters = 1,
1456         .adapter = {
1457                 {
1458                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1459                 },
1460         },
1461 };
1462
1463 static const struct dvb_usb_device_properties rtl2832u_props = {
1464         .driver_name = KBUILD_MODNAME,
1465         .owner = THIS_MODULE,
1466         .adapter_nr = adapter_nr,
1467         .size_of_priv = sizeof(struct rtl28xxu_priv),
1468
1469         .power_ctrl = rtl2832u_power_ctrl,
1470         .i2c_algo = &rtl28xxu_i2c_algo,
1471         .read_config = rtl2832u_read_config,
1472         .frontend_attach = rtl2832u_frontend_attach,
1473         .tuner_attach = rtl2832u_tuner_attach,
1474         .init = rtl28xxu_init,
1475         .exit = rtl28xxu_exit,
1476         .get_rc_config = rtl2832u_get_rc_config,
1477
1478         .num_adapters = 1,
1479         .adapter = {
1480                 {
1481                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1482                 },
1483         },
1484 };
1485
1486 static const struct usb_device_id rtl28xxu_id_table[] = {
1487         /* RTL2831U devices: */
1488         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1489                 &rtl2831u_props, "Realtek RTL2831U reference design", NULL) },
1490         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1491                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1492         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1493                 &rtl2831u_props, "Freecom USB2.0 DVB-T", NULL) },
1494
1495         /* RTL2832U devices: */
1496         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1497                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1498         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1499                 &rtl2832u_props, "Realtek RTL2832U reference design", NULL) },
1500         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1501                 &rtl2832u_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1502         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1503                 &rtl2832u_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1504         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1505                 &rtl2832u_props, "TerraTec NOXON DAB Stick", NULL) },
1506         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1507                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1508         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1509                 &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1510         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1511                 &rtl2832u_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1512         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1513                 &rtl2832u_props, "Dexatek DK DVB-T Dongle", NULL) },
1514         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1515                 &rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1516         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1517                 &rtl2832u_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1518         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1519                 &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1520         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1521                 &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1522         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1523                 &rtl2832u_props, "TerraTec Cinergy T Stick+", NULL) },
1524         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1525                 &rtl2832u_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1526         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1527                 &rtl2832u_props, "GIGABYTE U7300", NULL) },
1528         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1529                 &rtl2832u_props, "MSI DIGIVOX Micro HD", NULL) },
1530         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1531                 &rtl2832u_props, "Compro VideoMate U620F", NULL) },
1532         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1533                 &rtl2832u_props, "MaxMedia HU394-T", NULL) },
1534         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1535                 &rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1536         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1537                 &rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
1538         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1539                 &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
1540
1541         /* RTL2832P devices: */
1542         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1543                 &rtl2832u_props, "Astrometa DVB-T2", NULL) },
1544         { }
1545 };
1546 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1547
1548 static struct usb_driver rtl28xxu_usb_driver = {
1549         .name = KBUILD_MODNAME,
1550         .id_table = rtl28xxu_id_table,
1551         .probe = dvb_usbv2_probe,
1552         .disconnect = dvb_usbv2_disconnect,
1553         .suspend = dvb_usbv2_suspend,
1554         .resume = dvb_usbv2_resume,
1555         .reset_resume = dvb_usbv2_reset_resume,
1556         .no_dynamic_id = 1,
1557         .soft_unbind = 1,
1558 };
1559
1560 module_usb_driver(rtl28xxu_usb_driver);
1561
1562 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1563 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1564 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1565 MODULE_LICENSE("GPL");