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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Realtek RTL28xxU DVB USB driver
   4  *
   5  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   6  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
   7  * Copyright (C) 2012 Thomas Mair <thomas.mair86@googlemail.com>
   8  */
   9
  10 #include "rtl28xxu.h"
  11
  12 static int rtl28xxu_disable_rc;
  13 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
  14 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
  15 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  16
  17 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
  18 {
  19         struct rtl28xxu_dev *dev = d->priv;
  20         int ret;
  21         unsigned int pipe;
  22         u8 requesttype;
  23
  24         mutex_lock(&d->usb_mutex);
  25
  26         if (req->size > sizeof(dev->buf)) {
  27                 dev_err(&d->intf->dev, "too large message %u\n", req->size);
  28                 ret = -EINVAL;
  29                 goto err_mutex_unlock;
  30         }
  31
  32         if (req->index & CMD_WR_FLAG) {
  33                 /* write */
  34                 memcpy(dev->buf, req->data, req->size);
  35                 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
  36                 pipe = usb_sndctrlpipe(d->udev, 0);
  37         } else {
  38                 /* read */
  39                 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
  40
  41                 /*
  42                  * Zero-length transfers must use usb_sndctrlpipe() and
  43                  * rtl28xxu_identify_state() uses a zero-length i2c read
  44                  * command to determine the chip type.
  45                  */
  46                 if (req->size)
  47                         pipe = usb_rcvctrlpipe(d->udev, 0);
  48                 else
  49                         pipe = usb_sndctrlpipe(d->udev, 0);
  50         }
  51
  52         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  53                         req->index, dev->buf, req->size, 1000);
  54         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  55                         req->index, dev->buf, req->size);
  56         if (ret < 0)
  57                 goto err_mutex_unlock;
  58
  59         /* read request, copy returned data to return buf */
  60         if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  61                 memcpy(req->data, dev->buf, req->size);
  62
  63         mutex_unlock(&d->usb_mutex);
  64
  65         return 0;
  66 err_mutex_unlock:
  67         mutex_unlock(&d->usb_mutex);
  68         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
  69         return ret;
  70 }
  71
  72 static int rtl28xxu_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  73 {
  74         struct rtl28xxu_req req;
  75
  76         if (reg < 0x3000)
  77                 req.index = CMD_USB_WR;
  78         else if (reg < 0x4000)
  79                 req.index = CMD_SYS_WR;
  80         else
  81                 req.index = CMD_IR_WR;
  82
  83         req.value = reg;
  84         req.size = len;
  85         req.data = val;
  86
  87         return rtl28xxu_ctrl_msg(d, &req);
  88 }
  89
  90 static int rtl28xxu_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  91 {
  92         struct rtl28xxu_req req;
  93
  94         if (reg < 0x3000)
  95                 req.index = CMD_USB_RD;
  96         else if (reg < 0x4000)
  97                 req.index = CMD_SYS_RD;
  98         else
  99                 req.index = CMD_IR_RD;
 100
 101         req.value = reg;
 102         req.size = len;
 103         req.data = val;
 104
 105         return rtl28xxu_ctrl_msg(d, &req);
 106 }
 107
 108 static int rtl28xxu_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 109 {
 110         return rtl28xxu_wr_regs(d, reg, &val, 1);
 111 }
 112
 113 static int rtl28xxu_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 114 {
 115         return rtl28xxu_rd_regs(d, reg, val, 1);
 116 }
 117
 118 static int rtl28xxu_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 119                 u8 mask)
 120 {
 121         int ret;
 122         u8 tmp;
 123
 124         /* no need for read if whole reg is written */
 125         if (mask != 0xff) {
 126                 ret = rtl28xxu_rd_reg(d, reg, &tmp);
 127                 if (ret)
 128                         return ret;
 129
 130                 val &= mask;
 131                 tmp &= ~mask;
 132                 val |= tmp;
 133         }
 134
 135         return rtl28xxu_wr_reg(d, reg, val);
 136 }
 137
 138 /* I2C */
 139 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 140         int num)
 141 {
 142         int ret;
 143         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 144         struct rtl28xxu_dev *dev = d->priv;
 145         struct rtl28xxu_req req;
 146
 147         /*
 148          * It is not known which are real I2C bus xfer limits, but testing
 149          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 150          * TODO: find out RTL2832U lens
 151          */
 152
 153         /*
 154          * I2C adapter logic looks rather complicated due to fact it handles
 155          * three different access methods. Those methods are;
 156          * 1) integrated demod access
 157          * 2) old I2C access
 158          * 3) new I2C access
 159          *
 160          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 161          * requests but there is two reasons why not use it always;
 162          * 1) It is most expensive, usually two USB messages are needed
 163          * 2) At least RTL2831U does not support it
 164          *
 165          * Method 3 is needed in case of I2C write+read (typical register read)
 166          * where write is more than one byte.
 167          */
 168
 169         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 170                 return -EAGAIN;
 171
 172         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 173                 (msg[1].flags & I2C_M_RD)) {
 174                 if (msg[0].len > 24 || msg[1].len > 24) {
 175                         /* TODO: check msg[0].len max */
 176                         ret = -EOPNOTSUPP;
 177                         goto err_mutex_unlock;
 178                 } else if (msg[0].addr == 0x10) {
 179                         /* method 1 - integrated demod */
 180                         if (msg[0].buf[0] == 0x00) {
 181                                 /* return demod page from driver cache */
 182                                 msg[1].buf[0] = dev->page;
 183                                 ret = 0;
 184                         } else {
 185                                 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 186                                 req.index = CMD_DEMOD_RD | dev->page;
 187                                 req.size = msg[1].len;
 188                                 req.data = &msg[1].buf[0];
 189                                 ret = rtl28xxu_ctrl_msg(d, &req);
 190                         }
 191                 } else if (msg[0].len < 2) {
 192                         /* method 2 - old I2C */
 193                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 194                         req.index = CMD_I2C_RD;
 195                         req.size = msg[1].len;
 196                         req.data = &msg[1].buf[0];
 197                         ret = rtl28xxu_ctrl_msg(d, &req);
 198                 } else {
 199                         /* method 3 - new I2C */
 200                         req.value = (msg[0].addr << 1);
 201                         req.index = CMD_I2C_DA_WR;
 202                         req.size = msg[0].len;
 203                         req.data = msg[0].buf;
 204                         ret = rtl28xxu_ctrl_msg(d, &req);
 205                         if (ret)
 206                                 goto err_mutex_unlock;
 207
 208                         req.value = (msg[0].addr << 1);
 209                         req.index = CMD_I2C_DA_RD;
 210                         req.size = msg[1].len;
 211                         req.data = msg[1].buf;
 212                         ret = rtl28xxu_ctrl_msg(d, &req);
 213                 }
 214         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 215                 if (msg[0].len > 22) {
 216                         /* TODO: check msg[0].len max */
 217                         ret = -EOPNOTSUPP;
 218                         goto err_mutex_unlock;
 219                 } else if (msg[0].addr == 0x10) {
 220                         /* method 1 - integrated demod */
 221                         if (msg[0].buf[0] == 0x00) {
 222                                 /* save demod page for later demod access */
 223                                 dev->page = msg[0].buf[1];
 224                                 ret = 0;
 225                         } else {
 226                                 req.value = (msg[0].buf[0] << 8) |
 227                                         (msg[0].addr << 1);
 228                                 req.index = CMD_DEMOD_WR | dev->page;
 229                                 req.size = msg[0].len-1;
 230                                 req.data = &msg[0].buf[1];
 231                                 ret = rtl28xxu_ctrl_msg(d, &req);
 232                         }
 233                 } else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
 234                         /* method 2 - old I2C */
 235                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 236                         req.index = CMD_I2C_WR;
 237                         req.size = msg[0].len-1;
 238                         req.data = &msg[0].buf[1];
 239                         ret = rtl28xxu_ctrl_msg(d, &req);
 240                 } else {
 241                         /* method 3 - new I2C */
 242                         req.value = (msg[0].addr << 1);
 243                         req.index = CMD_I2C_DA_WR;
 244                         req.size = msg[0].len;
 245                         req.data = msg[0].buf;
 246                         ret = rtl28xxu_ctrl_msg(d, &req);
 247                 }
 248         } else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 249                 req.value = (msg[0].addr << 1);
 250                 req.index = CMD_I2C_DA_RD;
 251                 req.size = msg[0].len;
 252                 req.data = msg[0].buf;
 253                 ret = rtl28xxu_ctrl_msg(d, &req);
 254         } else {
 255                 ret = -EOPNOTSUPP;
 256         }
 257
 258         /* Retry failed I2C messages */
 259         if (ret == -EPIPE)
 260                 ret = -EAGAIN;
 261
 262 err_mutex_unlock:
 263         mutex_unlock(&d->i2c_mutex);
 264
 265         return ret ? ret : num;
 266 }
 267
 268 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 269 {
 270         return I2C_FUNC_I2C;
 271 }
 272
 273 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 274         .master_xfer   = rtl28xxu_i2c_xfer,
 275         .functionality = rtl28xxu_i2c_func,
 276 };
 277
 278 static int rtl2831u_read_config(struct dvb_usb_device *d)
 279 {
 280         struct rtl28xxu_dev *dev = d_to_priv(d);
 281         int ret;
 282         u8 buf[1];
 283         /* open RTL2831U/RTL2830 I2C gate */
 284         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 285         /* tuner probes */
 286         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 287         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 288
 289         dev_dbg(&d->intf->dev, "\n");
 290
 291         /*
 292          * RTL2831U GPIOs
 293          * =========================================================
 294          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 295          * GPIO2 | LED     | 0 off | 1 on  |
 296          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 297          */
 298
 299         /* GPIO direction */
 300         ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 301         if (ret)
 302                 goto err;
 303
 304         /* enable as output GPIO0, GPIO2, GPIO4 */
 305         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 306         if (ret)
 307                 goto err;
 308
 309         /*
 310          * Probe used tuner. We need to know used tuner before demod attach
 311          * since there is some demod params needed to set according to tuner.
 312          */
 313
 314         /* demod needs some time to wake up */
 315         msleep(20);
 316
 317         dev->tuner_name = "NONE";
 318
 319         /* open demod I2C gate */
 320         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 321         if (ret)
 322                 goto err;
 323
 324         /* check QT1010 ID(?) register; reg=0f val=2c */
 325         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 326         if (ret == 0 && buf[0] == 0x2c) {
 327                 dev->tuner = TUNER_RTL2830_QT1010;
 328                 dev->tuner_name = "QT1010";
 329                 goto found;
 330         }
 331
 332         /* open demod I2C gate */
 333         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 334         if (ret)
 335                 goto err;
 336
 337         /* check MT2060 ID register; reg=00 val=63 */
 338         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 339         if (ret == 0 && buf[0] == 0x63) {
 340                 dev->tuner = TUNER_RTL2830_MT2060;
 341                 dev->tuner_name = "MT2060";
 342                 goto found;
 343         }
 344
 345         /* assume MXL5005S */
 346         dev->tuner = TUNER_RTL2830_MXL5005S;
 347         dev->tuner_name = "MXL5005S";
 348         goto found;
 349
 350 found:
 351         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 352
 353         return 0;
 354 err:
 355         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 356         return ret;
 357 }
 358
 359 static int rtl2832u_read_config(struct dvb_usb_device *d)
 360 {
 361         struct rtl28xxu_dev *dev = d_to_priv(d);
 362         int ret;
 363         u8 buf[2];
 364         /* open RTL2832U/RTL2832 I2C gate */
 365         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 366         /* close RTL2832U/RTL2832 I2C gate */
 367         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 368         /* tuner probes */
 369         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 370         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 371         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 372         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 373         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 374         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 375         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 376         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 377         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 378         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 379         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 380         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 381         struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
 382         struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
 383         struct rtl28xxu_req req_cxd2837er = {0xfdd8, CMD_I2C_RD, 1, buf};
 384         struct rtl28xxu_req req_si2157 = {0x00c0, CMD_I2C_RD, 1, buf};
 385         struct rtl28xxu_req req_si2168 = {0x00c8, CMD_I2C_RD, 1, buf};
 386
 387         dev_dbg(&d->intf->dev, "\n");
 388
 389         /* enable GPIO3 and GPIO6 as output */
 390         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 391         if (ret)
 392                 goto err;
 393
 394         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 395         if (ret)
 396                 goto err;
 397
 398         /*
 399          * Probe used tuner. We need to know used tuner before demod attach
 400          * since there is some demod params needed to set according to tuner.
 401          */
 402
 403         /* open demod I2C gate */
 404         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 405         if (ret)
 406                 goto err;
 407
 408         dev->tuner_name = "NONE";
 409
 410         /* check FC0012 ID register; reg=00 val=a1 */
 411         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 412         if (ret == 0 && buf[0] == 0xa1) {
 413                 dev->tuner = TUNER_RTL2832_FC0012;
 414                 dev->tuner_name = "FC0012";
 415                 goto tuner_found;
 416         }
 417
 418         /* check FC0013 ID register; reg=00 val=a3 */
 419         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 420         if (ret == 0 && buf[0] == 0xa3) {
 421                 dev->tuner = TUNER_RTL2832_FC0013;
 422                 dev->tuner_name = "FC0013";
 423                 goto tuner_found;
 424         }
 425
 426         /* check MT2266 ID register; reg=00 val=85 */
 427         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 428         if (ret == 0 && buf[0] == 0x85) {
 429                 dev->tuner = TUNER_RTL2832_MT2266;
 430                 dev->tuner_name = "MT2266";
 431                 goto tuner_found;
 432         }
 433
 434         /* check FC2580 ID register; reg=01 val=56 */
 435         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 436         if (ret == 0 && buf[0] == 0x56) {
 437                 dev->tuner = TUNER_RTL2832_FC2580;
 438                 dev->tuner_name = "FC2580";
 439                 goto tuner_found;
 440         }
 441
 442         /* check MT2063 ID register; reg=00 val=9e || 9c */
 443         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 444         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 445                 dev->tuner = TUNER_RTL2832_MT2063;
 446                 dev->tuner_name = "MT2063";
 447                 goto tuner_found;
 448         }
 449
 450         /* check MAX3543 ID register; reg=00 val=38 */
 451         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 452         if (ret == 0 && buf[0] == 0x38) {
 453                 dev->tuner = TUNER_RTL2832_MAX3543;
 454                 dev->tuner_name = "MAX3543";
 455                 goto tuner_found;
 456         }
 457
 458         /* check TUA9001 ID register; reg=7e val=2328 */
 459         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 460         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 461                 dev->tuner = TUNER_RTL2832_TUA9001;
 462                 dev->tuner_name = "TUA9001";
 463                 goto tuner_found;
 464         }
 465
 466         /* check MXL5007R ID register; reg=d9 val=14 */
 467         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 468         if (ret == 0 && buf[0] == 0x14) {
 469                 dev->tuner = TUNER_RTL2832_MXL5007T;
 470                 dev->tuner_name = "MXL5007T";
 471                 goto tuner_found;
 472         }
 473
 474         /* check E4000 ID register; reg=02 val=40 */
 475         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 476         if (ret == 0 && buf[0] == 0x40) {
 477                 dev->tuner = TUNER_RTL2832_E4000;
 478                 dev->tuner_name = "E4000";
 479                 goto tuner_found;
 480         }
 481
 482         /* check TDA18272 ID register; reg=00 val=c760  */
 483         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 484         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 485                 dev->tuner = TUNER_RTL2832_TDA18272;
 486                 dev->tuner_name = "TDA18272";
 487                 goto tuner_found;
 488         }
 489
 490         /* check R820T ID register; reg=00 val=69 */
 491         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 492         if (ret == 0 && buf[0] == 0x69) {
 493                 dev->tuner = TUNER_RTL2832_R820T;
 494                 dev->tuner_name = "R820T";
 495                 goto tuner_found;
 496         }
 497
 498         /* check R828D ID register; reg=00 val=69 */
 499         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 500         if (ret == 0 && buf[0] == 0x69) {
 501                 dev->tuner = TUNER_RTL2832_R828D;
 502                 dev->tuner_name = "R828D";
 503                 goto tuner_found;
 504         }
 505
 506         /* GPIO0 and GPIO5 to reset Si2157/Si2168 tuner and demod */
 507         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x21);
 508         if (ret)
 509                 goto err;
 510
 511         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x21);
 512         if (ret)
 513                 goto err;
 514
 515         msleep(50);
 516
 517         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x21, 0x21);
 518         if (ret)
 519                 goto err;
 520
 521         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x21, 0x21);
 522         if (ret)
 523                 goto err;
 524
 525         msleep(50);
 526
 527         /* check Si2157 ID register; reg=c0 val=80 */
 528         ret = rtl28xxu_ctrl_msg(d, &req_si2157);
 529         if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 530                 dev->tuner = TUNER_RTL2832_SI2157;
 531                 dev->tuner_name = "SI2157";
 532                 goto tuner_found;
 533         }
 534
 535 tuner_found:
 536         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 537
 538         /* probe slave demod */
 539         if (dev->tuner == TUNER_RTL2832_R828D) {
 540                 /* power off slave demod on GPIO0 to reset CXD2837ER */
 541                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
 542                 if (ret)
 543                         goto err;
 544
 545                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x01);
 546                 if (ret)
 547                         goto err;
 548
 549                 msleep(50);
 550
 551                 /* power on slave demod on GPIO0 */
 552                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
 553                 if (ret)
 554                         goto err;
 555
 556                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 557                 if (ret)
 558                         goto err;
 559
 560                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 561                 if (ret)
 562                         goto err;
 563
 564                 /* slave demod needs some time to wake up */
 565                 msleep(20);
 566
 567                 /* check slave answers */
 568                 ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
 569                 if (ret == 0 && buf[0] == 0x02) {
 570                         dev_dbg(&d->intf->dev, "MN88472 found\n");
 571                         dev->slave_demod = SLAVE_DEMOD_MN88472;
 572                         goto demod_found;
 573                 }
 574
 575                 ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
 576                 if (ret == 0 && buf[0] == 0x03) {
 577                         dev_dbg(&d->intf->dev, "MN88473 found\n");
 578                         dev->slave_demod = SLAVE_DEMOD_MN88473;
 579                         goto demod_found;
 580                 }
 581
 582                 ret = rtl28xxu_ctrl_msg(d, &req_cxd2837er);
 583                 if (ret == 0 && buf[0] == 0xb1) {
 584                         dev_dbg(&d->intf->dev, "CXD2837ER found\n");
 585                         dev->slave_demod = SLAVE_DEMOD_CXD2837ER;
 586                         goto demod_found;
 587                 }
 588         }
 589         if (dev->tuner == TUNER_RTL2832_SI2157) {
 590                 /* check Si2168 ID register; reg=c8 val=80 */
 591                 ret = rtl28xxu_ctrl_msg(d, &req_si2168);
 592                 if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 593                         dev_dbg(&d->intf->dev, "Si2168 found\n");
 594                         dev->slave_demod = SLAVE_DEMOD_SI2168;
 595                         goto demod_found;
 596                 }
 597         }
 598
 599 demod_found:
 600         /* close demod I2C gate */
 601         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 602         if (ret < 0)
 603                 goto err;
 604
 605         return 0;
 606 err:
 607         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 608         return ret;
 609 }
 610
 611 static int rtl28xxu_read_config(struct dvb_usb_device *d)
 612 {
 613         struct rtl28xxu_dev *dev = d_to_priv(d);
 614
 615         if (dev->chip_id == CHIP_ID_RTL2831U)
 616                 return rtl2831u_read_config(d);
 617         else
 618                 return rtl2832u_read_config(d);
 619 }
 620
 621 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
 622 {
 623         struct rtl28xxu_dev *dev = d_to_priv(d);
 624         int ret;
 625         struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
 626
 627         dev_dbg(&d->intf->dev, "\n");
 628
 629         /*
 630          * Detect chip type using I2C command that is not supported
 631          * by old RTL2831U.
 632          */
 633         ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
 634         if (ret == -EPIPE) {
 635                 dev->chip_id = CHIP_ID_RTL2831U;
 636         } else if (ret == 0) {
 637                 dev->chip_id = CHIP_ID_RTL2832U;
 638         } else {
 639                 dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
 640                 goto err;
 641         }
 642         dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
 643
 644         /* Retry failed I2C messages */
 645         d->i2c_adap.retries = 3;
 646         d->i2c_adap.timeout = msecs_to_jiffies(10);
 647
 648         return WARM;
 649 err:
 650         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 651         return ret;
 652 }
 653
 654 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
 655         .clk = 28800000,
 656         .spec_inv = 1,
 657         .vtop = 0x20,
 658         .krf = 0x04,
 659         .agc_targ_val = 0x2d,
 660
 661 };
 662
 663 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
 664         .clk = 28800000,
 665         .spec_inv = 1,
 666         .vtop = 0x20,
 667         .krf = 0x04,
 668         .agc_targ_val = 0x2d,
 669 };
 670
 671 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
 672         .clk = 28800000,
 673         .spec_inv = 0,
 674         .vtop = 0x3f,
 675         .krf = 0x04,
 676         .agc_targ_val = 0x3e,
 677 };
 678
 679 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 680 {
 681         struct dvb_usb_device *d = adap_to_d(adap);
 682         struct rtl28xxu_dev *dev = d_to_priv(d);
 683         struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
 684         struct i2c_board_info board_info;
 685         struct i2c_client *client;
 686         int ret;
 687
 688         dev_dbg(&d->intf->dev, "\n");
 689
 690         switch (dev->tuner) {
 691         case TUNER_RTL2830_QT1010:
 692                 *pdata = rtl2830_qt1010_platform_data;
 693                 break;
 694         case TUNER_RTL2830_MT2060:
 695                 *pdata = rtl2830_mt2060_platform_data;
 696                 break;
 697         case TUNER_RTL2830_MXL5005S:
 698                 *pdata = rtl2830_mxl5005s_platform_data;
 699                 break;
 700         default:
 701                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 702                 ret = -ENODEV;
 703                 goto err;
 704         }
 705
 706         /* attach demodulator */
 707         memset(&board_info, 0, sizeof(board_info));
 708         strscpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
 709         board_info.addr = 0x10;
 710         board_info.platform_data = pdata;
 711         request_module("%s", board_info.type);
 712         client = i2c_new_client_device(&d->i2c_adap, &board_info);
 713         if (!i2c_client_has_driver(client)) {
 714                 ret = -ENODEV;
 715                 goto err;
 716         }
 717
 718         if (!try_module_get(client->dev.driver->owner)) {
 719                 i2c_unregister_device(client);
 720                 ret = -ENODEV;
 721                 goto err;
 722         }
 723
 724         adap->fe[0] = pdata->get_dvb_frontend(client);
 725         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 726
 727         dev->i2c_client_demod = client;
 728
 729         return 0;
 730 err:
 731         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 732         return ret;
 733 }
 734
 735 static const struct rtl2832_platform_data rtl2832_fc2580_platform_data = {
 736         .clk = 28800000,
 737         .tuner = TUNER_RTL2832_FC2580,
 738 };
 739
 740 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
 741         .clk = 28800000,
 742         .tuner = TUNER_RTL2832_FC0012
 743 };
 744
 745 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
 746         .clk = 28800000,
 747         .tuner = TUNER_RTL2832_FC0013
 748 };
 749
 750 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
 751         .clk = 28800000,
 752         .tuner = TUNER_RTL2832_TUA9001,
 753 };
 754
 755 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
 756         .clk = 28800000,
 757         .tuner = TUNER_RTL2832_E4000,
 758 };
 759
 760 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
 761         .clk = 28800000,
 762         .tuner = TUNER_RTL2832_R820T,
 763 };
 764
 765 static const struct rtl2832_platform_data rtl2832_si2157_platform_data = {
 766         .clk = 28800000,
 767         .tuner = TUNER_RTL2832_SI2157,
 768 };
 769
 770 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 771                 int cmd, int arg)
 772 {
 773         int ret;
 774         u8 val;
 775
 776         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 777
 778         switch (cmd) {
 779         case FC_FE_CALLBACK_VHF_ENABLE:
 780                 /* set output values */
 781                 ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 782                 if (ret)
 783                         goto err;
 784
 785                 if (arg)
 786                         val &= 0xbf; /* set GPIO6 low */
 787                 else
 788                         val |= 0x40; /* set GPIO6 high */
 789
 790
 791                 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 792                 if (ret)
 793                         goto err;
 794                 break;
 795         default:
 796                 ret = -EINVAL;
 797                 goto err;
 798         }
 799         return 0;
 800 err:
 801         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 802         return ret;
 803 }
 804
 805 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 806                 int cmd, int arg)
 807 {
 808         int ret;
 809         u8 val;
 810
 811         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 812
 813         /*
 814          * CEN     always enabled by hardware wiring
 815          * RESETN  GPIO4
 816          * RXEN    GPIO1
 817          */
 818
 819         switch (cmd) {
 820         case TUA9001_CMD_RESETN:
 821                 if (arg)
 822                         val = (1 << 4);
 823                 else
 824                         val = (0 << 4);
 825
 826                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 827                 if (ret)
 828                         goto err;
 829                 break;
 830         case TUA9001_CMD_RXEN:
 831                 if (arg)
 832                         val = (1 << 1);
 833                 else
 834                         val = (0 << 1);
 835
 836                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 837                 if (ret)
 838                         goto err;
 839                 break;
 840         }
 841
 842         return 0;
 843 err:
 844         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 845         return ret;
 846 }
 847
 848 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 849                 int cmd, int arg)
 850 {
 851         struct i2c_adapter *adapter = adapter_priv;
 852         struct device *parent = adapter->dev.parent;
 853         struct i2c_adapter *parent_adapter;
 854         struct dvb_usb_device *d;
 855         struct rtl28xxu_dev *dev;
 856
 857         /*
 858          * All tuners are connected to demod muxed I2C adapter. We have to
 859          * resolve its parent adapter in order to get handle for this driver
 860          * private data. That is a bit hackish solution, GPIO or direct driver
 861          * callback would be better...
 862          */
 863         if (parent != NULL && parent->type == &i2c_adapter_type)
 864                 parent_adapter = to_i2c_adapter(parent);
 865         else
 866                 return -EINVAL;
 867
 868         d = i2c_get_adapdata(parent_adapter);
 869         dev = d->priv;
 870
 871         dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
 872                 component, cmd, arg);
 873
 874         switch (component) {
 875         case DVB_FRONTEND_COMPONENT_TUNER:
 876                 switch (dev->tuner) {
 877                 case TUNER_RTL2832_FC0012:
 878                         return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 879                 case TUNER_RTL2832_TUA9001:
 880                         return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 881                 }
 882         }
 883
 884         return 0;
 885 }
 886
 887 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 888 {
 889         struct dvb_usb_device *d = adap_to_d(adap);
 890         struct rtl28xxu_dev *dev = d_to_priv(d);
 891         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
 892         struct i2c_board_info board_info;
 893         struct i2c_client *client;
 894         int ret;
 895
 896         dev_dbg(&d->intf->dev, "\n");
 897
 898         switch (dev->tuner) {
 899         case TUNER_RTL2832_FC0012:
 900                 *pdata = rtl2832_fc0012_platform_data;
 901                 break;
 902         case TUNER_RTL2832_FC0013:
 903                 *pdata = rtl2832_fc0013_platform_data;
 904                 break;
 905         case TUNER_RTL2832_FC2580:
 906                 *pdata = rtl2832_fc2580_platform_data;
 907                 break;
 908         case TUNER_RTL2832_TUA9001:
 909                 *pdata = rtl2832_tua9001_platform_data;
 910                 break;
 911         case TUNER_RTL2832_E4000:
 912                 *pdata = rtl2832_e4000_platform_data;
 913                 break;
 914         case TUNER_RTL2832_R820T:
 915         case TUNER_RTL2832_R828D:
 916                 *pdata = rtl2832_r820t_platform_data;
 917                 break;
 918         case TUNER_RTL2832_SI2157:
 919                 *pdata = rtl2832_si2157_platform_data;
 920                 break;
 921         default:
 922                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 923                 ret = -ENODEV;
 924                 goto err;
 925         }
 926
 927         /* attach demodulator */
 928         memset(&board_info, 0, sizeof(board_info));
 929         strscpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
 930         board_info.addr = 0x10;
 931         board_info.platform_data = pdata;
 932         request_module("%s", board_info.type);
 933         client = i2c_new_client_device(&d->i2c_adap, &board_info);
 934         if (!i2c_client_has_driver(client)) {
 935                 ret = -ENODEV;
 936                 goto err;
 937         }
 938
 939         if (!try_module_get(client->dev.driver->owner)) {
 940                 i2c_unregister_device(client);
 941                 ret = -ENODEV;
 942                 goto err;
 943         }
 944
 945         adap->fe[0] = pdata->get_dvb_frontend(client);
 946         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 947
 948         dev->i2c_client_demod = client;
 949
 950         /* set fe callback */
 951         adap->fe[0]->callback = rtl2832u_frontend_callback;
 952
 953         if (dev->slave_demod) {
 954                 struct i2c_board_info info = {};
 955
 956                 /* attach slave demodulator */
 957                 if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
 958                         struct mn88472_config mn88472_config = {};
 959
 960                         mn88472_config.fe = &adap->fe[1];
 961                         mn88472_config.i2c_wr_max = 22;
 962                         strscpy(info.type, "mn88472", I2C_NAME_SIZE);
 963                         mn88472_config.xtal = 20500000;
 964                         mn88472_config.ts_mode = SERIAL_TS_MODE;
 965                         mn88472_config.ts_clock = VARIABLE_TS_CLOCK;
 966                         info.addr = 0x18;
 967                         info.platform_data = &mn88472_config;
 968                         request_module(info.type);
 969                         client = i2c_new_client_device(&d->i2c_adap, &info);
 970                         if (!i2c_client_has_driver(client))
 971                                 goto err_slave_demod_failed;
 972
 973                         if (!try_module_get(client->dev.driver->owner)) {
 974                                 i2c_unregister_device(client);
 975                                 goto err_slave_demod_failed;
 976                         }
 977
 978                         dev->i2c_client_slave_demod = client;
 979                 } else if (dev->slave_demod == SLAVE_DEMOD_MN88473) {
 980                         struct mn88473_config mn88473_config = {};
 981
 982                         mn88473_config.fe = &adap->fe[1];
 983                         mn88473_config.i2c_wr_max = 22;
 984                         strscpy(info.type, "mn88473", I2C_NAME_SIZE);
 985                         info.addr = 0x18;
 986                         info.platform_data = &mn88473_config;
 987                         request_module(info.type);
 988                         client = i2c_new_client_device(&d->i2c_adap, &info);
 989                         if (!i2c_client_has_driver(client))
 990                                 goto err_slave_demod_failed;
 991
 992                         if (!try_module_get(client->dev.driver->owner)) {
 993                                 i2c_unregister_device(client);
 994                                 goto err_slave_demod_failed;
 995                         }
 996
 997                         dev->i2c_client_slave_demod = client;
 998                 } else if (dev->slave_demod == SLAVE_DEMOD_CXD2837ER) {
 999                         struct cxd2841er_config cxd2837er_config = {};
1000
1001                         cxd2837er_config.i2c_addr = 0xd8;
1002                         cxd2837er_config.xtal = SONY_XTAL_20500;
1003                         cxd2837er_config.flags = (CXD2841ER_AUTO_IFHZ |
1004                                 CXD2841ER_NO_AGCNEG | CXD2841ER_TSBITS |
1005                                 CXD2841ER_EARLY_TUNE | CXD2841ER_TS_SERIAL);
1006                         adap->fe[1] = dvb_attach(cxd2841er_attach_t_c,
1007                                                  &cxd2837er_config,
1008                                                  &d->i2c_adap);
1009                         if (!adap->fe[1])
1010                                 goto err_slave_demod_failed;
1011                         adap->fe[1]->id = 1;
1012                         dev->i2c_client_slave_demod = NULL;
1013                 } else {
1014                         struct si2168_config si2168_config = {};
1015                         struct i2c_adapter *adapter;
1016
1017                         si2168_config.i2c_adapter = &adapter;
1018                         si2168_config.fe = &adap->fe[1];
1019                         si2168_config.ts_mode = SI2168_TS_SERIAL;
1020                         si2168_config.ts_clock_inv = false;
1021                         si2168_config.ts_clock_gapped = true;
1022                         strscpy(info.type, "si2168", I2C_NAME_SIZE);
1023                         info.addr = 0x64;
1024                         info.platform_data = &si2168_config;
1025                         request_module(info.type);
1026                         client = i2c_new_client_device(&d->i2c_adap, &info);
1027                         if (!i2c_client_has_driver(client))
1028                                 goto err_slave_demod_failed;
1029
1030                         if (!try_module_get(client->dev.driver->owner)) {
1031                                 i2c_unregister_device(client);
1032                                 goto err_slave_demod_failed;
1033                         }
1034
1035                         dev->i2c_client_slave_demod = client;
1036
1037                         /* for Si2168 devices use only new I2C write method */
1038                         dev->new_i2c_write = true;
1039                 }
1040         }
1041         return 0;
1042
1043 err:
1044         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1045         return ret;
1046
1047 err_slave_demod_failed:
1048         /*
1049          * We continue on reduced mode, without DVB-T2/C, using master
1050          * demod, when slave demod fails.
1051          */
1052         dev->slave_demod = SLAVE_DEMOD_NONE;
1053         return 0;
1054 }
1055
1056 static int rtl28xxu_frontend_attach(struct dvb_usb_adapter *adap)
1057 {
1058         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1059
1060         if (dev->chip_id == CHIP_ID_RTL2831U)
1061                 return rtl2831u_frontend_attach(adap);
1062         else
1063                 return rtl2832u_frontend_attach(adap);
1064 }
1065
1066 static int rtl28xxu_frontend_detach(struct dvb_usb_adapter *adap)
1067 {
1068         struct dvb_usb_device *d = adap_to_d(adap);
1069         struct rtl28xxu_dev *dev = d_to_priv(d);
1070         struct i2c_client *client;
1071
1072         dev_dbg(&d->intf->dev, "\n");
1073
1074         /* remove I2C slave demod */
1075         client = dev->i2c_client_slave_demod;
1076         if (client) {
1077                 module_put(client->dev.driver->owner);
1078                 i2c_unregister_device(client);
1079         }
1080
1081         /* remove I2C demod */
1082         client = dev->i2c_client_demod;
1083         if (client) {
1084                 module_put(client->dev.driver->owner);
1085                 i2c_unregister_device(client);
1086         }
1087
1088         return 0;
1089 }
1090
1091 static struct qt1010_config rtl28xxu_qt1010_config = {
1092         .i2c_address = 0x62, /* 0xc4 */
1093 };
1094
1095 static struct mt2060_config rtl28xxu_mt2060_config = {
1096         .i2c_address = 0x60, /* 0xc0 */
1097         .clock_out = 0,
1098 };
1099
1100 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
1101         .i2c_address     = 0x63, /* 0xc6 */
1102         .if_freq         = IF_FREQ_4570000HZ,
1103         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
1104         .agc_mode        = MXL_SINGLE_AGC,
1105         .tracking_filter = MXL_TF_C_H,
1106         .rssi_enable     = MXL_RSSI_ENABLE,
1107         .cap_select      = MXL_CAP_SEL_ENABLE,
1108         .div_out         = MXL_DIV_OUT_4,
1109         .clock_out       = MXL_CLOCK_OUT_DISABLE,
1110         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
1111         .top             = MXL5005S_TOP_25P2,
1112         .mod_mode        = MXL_DIGITAL_MODE,
1113         .if_mode         = MXL_ZERO_IF,
1114         .AgcMasterByte   = 0x00,
1115 };
1116
1117 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
1118 {
1119         int ret;
1120         struct dvb_usb_device *d = adap_to_d(adap);
1121         struct rtl28xxu_dev *dev = d_to_priv(d);
1122         struct dvb_frontend *fe;
1123
1124         dev_dbg(&d->intf->dev, "\n");
1125
1126         switch (dev->tuner) {
1127         case TUNER_RTL2830_QT1010:
1128                 fe = dvb_attach(qt1010_attach, adap->fe[0],
1129                                 dev->demod_i2c_adapter,
1130                                 &rtl28xxu_qt1010_config);
1131                 break;
1132         case TUNER_RTL2830_MT2060:
1133                 fe = dvb_attach(mt2060_attach, adap->fe[0],
1134                                 dev->demod_i2c_adapter,
1135                                 &rtl28xxu_mt2060_config, 1220);
1136                 break;
1137         case TUNER_RTL2830_MXL5005S:
1138                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
1139                                 dev->demod_i2c_adapter,
1140                                 &rtl28xxu_mxl5005s_config);
1141                 break;
1142         default:
1143                 fe = NULL;
1144                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1145         }
1146
1147         if (fe == NULL) {
1148                 ret = -ENODEV;
1149                 goto err;
1150         }
1151
1152         return 0;
1153 err:
1154         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1155         return ret;
1156 }
1157
1158 static const struct fc0012_config rtl2832u_fc0012_config = {
1159         .i2c_address = 0x63, /* 0xc6 >> 1 */
1160         .xtal_freq = FC_XTAL_28_8_MHZ,
1161 };
1162
1163 static const struct r820t_config rtl2832u_r820t_config = {
1164         .i2c_addr = 0x1a,
1165         .xtal = 28800000,
1166         .max_i2c_msg_len = 2,
1167         .rafael_chip = CHIP_R820T,
1168 };
1169
1170 static const struct r820t_config rtl2832u_r828d_config = {
1171         .i2c_addr = 0x3a,
1172         .xtal = 16000000,
1173         .max_i2c_msg_len = 2,
1174         .rafael_chip = CHIP_R828D,
1175 };
1176
1177 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
1178 {
1179         int ret;
1180         struct dvb_usb_device *d = adap_to_d(adap);
1181         struct rtl28xxu_dev *dev = d_to_priv(d);
1182         struct dvb_frontend *fe = NULL;
1183         struct i2c_board_info info;
1184         struct i2c_client *client;
1185         struct v4l2_subdev *subdev = NULL;
1186         struct platform_device *pdev;
1187         struct rtl2832_sdr_platform_data pdata;
1188
1189         dev_dbg(&d->intf->dev, "\n");
1190
1191         memset(&info, 0, sizeof(struct i2c_board_info));
1192         memset(&pdata, 0, sizeof(pdata));
1193
1194         switch (dev->tuner) {
1195         case TUNER_RTL2832_FC0012:
1196                 fe = dvb_attach(fc0012_attach, adap->fe[0],
1197                         dev->demod_i2c_adapter, &rtl2832u_fc0012_config);
1198
1199                 /* since fc0012 includs reading the signal strength delegate
1200                  * that to the tuner driver */
1201                 adap->fe[0]->ops.read_signal_strength =
1202                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1203                 break;
1204         case TUNER_RTL2832_FC0013:
1205                 fe = dvb_attach(fc0013_attach, adap->fe[0],
1206                         dev->demod_i2c_adapter, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
1207
1208                 /* fc0013 also supports signal strength reading */
1209                 adap->fe[0]->ops.read_signal_strength =
1210                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1211                 break;
1212         case TUNER_RTL2832_E4000: {
1213                         struct e4000_config e4000_config = {
1214                                 .fe = adap->fe[0],
1215                                 .clock = 28800000,
1216                         };
1217
1218                         strscpy(info.type, "e4000", I2C_NAME_SIZE);
1219                         info.addr = 0x64;
1220                         info.platform_data = &e4000_config;
1221
1222                         request_module(info.type);
1223                         client = i2c_new_client_device(dev->demod_i2c_adapter,
1224                                                        &info);
1225                         if (!i2c_client_has_driver(client))
1226                                 break;
1227
1228                         if (!try_module_get(client->dev.driver->owner)) {
1229                                 i2c_unregister_device(client);
1230                                 break;
1231                         }
1232
1233                         dev->i2c_client_tuner = client;
1234                         subdev = i2c_get_clientdata(client);
1235                 }
1236                 break;
1237         case TUNER_RTL2832_FC2580: {
1238                         struct fc2580_platform_data fc2580_pdata = {
1239                                 .dvb_frontend = adap->fe[0],
1240                         };
1241                         struct i2c_board_info board_info = {};
1242
1243                         strscpy(board_info.type, "fc2580", I2C_NAME_SIZE);
1244                         board_info.addr = 0x56;
1245                         board_info.platform_data = &fc2580_pdata;
1246                         request_module("fc2580");
1247                         client = i2c_new_client_device(dev->demod_i2c_adapter,
1248                                                        &board_info);
1249                         if (!i2c_client_has_driver(client))
1250                                 break;
1251                         if (!try_module_get(client->dev.driver->owner)) {
1252                                 i2c_unregister_device(client);
1253                                 break;
1254                         }
1255                         dev->i2c_client_tuner = client;
1256                         subdev = fc2580_pdata.get_v4l2_subdev(client);
1257                 }
1258                 break;
1259         case TUNER_RTL2832_TUA9001: {
1260                 struct tua9001_platform_data tua9001_pdata = {
1261                         .dvb_frontend = adap->fe[0],
1262                 };
1263                 struct i2c_board_info board_info = {};
1264
1265                 /* enable GPIO1 and GPIO4 as output */
1266                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1267                 if (ret)
1268                         goto err;
1269
1270                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1271                 if (ret)
1272                         goto err;
1273
1274                 strscpy(board_info.type, "tua9001", I2C_NAME_SIZE);
1275                 board_info.addr = 0x60;
1276                 board_info.platform_data = &tua9001_pdata;
1277                 request_module("tua9001");
1278                 client = i2c_new_client_device(dev->demod_i2c_adapter,
1279                                                &board_info);
1280                 if (!i2c_client_has_driver(client))
1281                         break;
1282                 if (!try_module_get(client->dev.driver->owner)) {
1283                         i2c_unregister_device(client);
1284                         break;
1285                 }
1286                 dev->i2c_client_tuner = client;
1287                 break;
1288         }
1289         case TUNER_RTL2832_R820T:
1290                 fe = dvb_attach(r820t_attach, adap->fe[0],
1291                                 dev->demod_i2c_adapter,
1292                                 &rtl2832u_r820t_config);
1293
1294                 /* Use tuner to get the signal strength */
1295                 adap->fe[0]->ops.read_signal_strength =
1296                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1297                 break;
1298         case TUNER_RTL2832_R828D:
1299                 fe = dvb_attach(r820t_attach, adap->fe[0],
1300                                 dev->demod_i2c_adapter,
1301                                 &rtl2832u_r828d_config);
1302                 adap->fe[0]->ops.read_signal_strength =
1303                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1304
1305                 if (adap->fe[1]) {
1306                         fe = dvb_attach(r820t_attach, adap->fe[1],
1307                                         dev->demod_i2c_adapter,
1308                                         &rtl2832u_r828d_config);
1309                         adap->fe[1]->ops.read_signal_strength =
1310                                         adap->fe[1]->ops.tuner_ops.get_rf_strength;
1311                 }
1312                 break;
1313         case TUNER_RTL2832_SI2157: {
1314                         struct si2157_config si2157_config = {
1315                                 .fe = adap->fe[0],
1316                                 .if_port = 0,
1317                                 .inversion = false,
1318                         };
1319
1320                         strscpy(info.type, "si2157", I2C_NAME_SIZE);
1321                         info.addr = 0x60;
1322                         info.platform_data = &si2157_config;
1323                         request_module(info.type);
1324                         client = i2c_new_client_device(&d->i2c_adap, &info);
1325                         if (!i2c_client_has_driver(client))
1326                                 break;
1327
1328                         if (!try_module_get(client->dev.driver->owner)) {
1329                                 i2c_unregister_device(client);
1330                                 break;
1331                         }
1332
1333                         dev->i2c_client_tuner = client;
1334                         subdev = i2c_get_clientdata(client);
1335
1336                         /* copy tuner ops for 2nd FE as tuner is shared */
1337                         if (adap->fe[1]) {
1338                                 adap->fe[1]->tuner_priv =
1339                                                 adap->fe[0]->tuner_priv;
1340                                 memcpy(&adap->fe[1]->ops.tuner_ops,
1341                                                 &adap->fe[0]->ops.tuner_ops,
1342                                                 sizeof(struct dvb_tuner_ops));
1343                         }
1344                 }
1345                 break;
1346         default:
1347                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1348         }
1349         if (fe == NULL && dev->i2c_client_tuner == NULL) {
1350                 ret = -ENODEV;
1351                 goto err;
1352         }
1353
1354         /* register SDR */
1355         switch (dev->tuner) {
1356         case TUNER_RTL2832_FC2580:
1357         case TUNER_RTL2832_FC0012:
1358         case TUNER_RTL2832_FC0013:
1359         case TUNER_RTL2832_E4000:
1360         case TUNER_RTL2832_R820T:
1361         case TUNER_RTL2832_R828D:
1362                 pdata.clk = dev->rtl2832_platform_data.clk;
1363                 pdata.tuner = dev->tuner;
1364                 pdata.regmap = dev->rtl2832_platform_data.regmap;
1365                 pdata.dvb_frontend = adap->fe[0];
1366                 pdata.dvb_usb_device = d;
1367                 pdata.v4l2_subdev = subdev;
1368
1369                 request_module("%s", "rtl2832_sdr");
1370                 pdev = platform_device_register_data(&d->intf->dev,
1371                                                      "rtl2832_sdr",
1372                                                      PLATFORM_DEVID_AUTO,
1373                                                      &pdata, sizeof(pdata));
1374                 if (IS_ERR(pdev) || pdev->dev.driver == NULL)
1375                         break;
1376                 dev->platform_device_sdr = pdev;
1377                 break;
1378         default:
1379                 dev_dbg(&d->intf->dev, "no SDR for tuner=%d\n", dev->tuner);
1380         }
1381
1382         return 0;
1383 err:
1384         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1385         return ret;
1386 }
1387
1388 static int rtl28xxu_tuner_attach(struct dvb_usb_adapter *adap)
1389 {
1390         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1391
1392         if (dev->chip_id == CHIP_ID_RTL2831U)
1393                 return rtl2831u_tuner_attach(adap);
1394         else
1395                 return rtl2832u_tuner_attach(adap);
1396 }
1397
1398 static int rtl28xxu_tuner_detach(struct dvb_usb_adapter *adap)
1399 {
1400         struct dvb_usb_device *d = adap_to_d(adap);
1401         struct rtl28xxu_dev *dev = d_to_priv(d);
1402         struct i2c_client *client;
1403         struct platform_device *pdev;
1404
1405         dev_dbg(&d->intf->dev, "\n");
1406
1407         /* remove platform SDR */
1408         pdev = dev->platform_device_sdr;
1409         if (pdev)
1410                 platform_device_unregister(pdev);
1411
1412         /* remove I2C tuner */
1413         client = dev->i2c_client_tuner;
1414         if (client) {
1415                 module_put(client->dev.driver->owner);
1416                 i2c_unregister_device(client);
1417         }
1418
1419         return 0;
1420 }
1421
1422 static int rtl28xxu_init(struct dvb_usb_device *d)
1423 {
1424         int ret;
1425         u8 val;
1426
1427         dev_dbg(&d->intf->dev, "\n");
1428
1429         /* init USB endpoints */
1430         ret = rtl28xxu_rd_reg(d, USB_SYSCTL_0, &val);
1431         if (ret)
1432                 goto err;
1433
1434         /* enable DMA and Full Packet Mode*/
1435         val |= 0x09;
1436         ret = rtl28xxu_wr_reg(d, USB_SYSCTL_0, val);
1437         if (ret)
1438                 goto err;
1439
1440         /* set EPA maximum packet size to 0x0200 */
1441         ret = rtl28xxu_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1442         if (ret)
1443                 goto err;
1444
1445         /* change EPA FIFO length */
1446         ret = rtl28xxu_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1447         if (ret)
1448                 goto err;
1449
1450         return ret;
1451 err:
1452         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1453         return ret;
1454 }
1455
1456 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1457 {
1458         int ret;
1459         u8 gpio, sys0, epa_ctl[2];
1460
1461         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1462
1463         /* demod adc */
1464         ret = rtl28xxu_rd_reg(d, SYS_SYS0, &sys0);
1465         if (ret)
1466                 goto err;
1467
1468         /* tuner power, read GPIOs */
1469         ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1470         if (ret)
1471                 goto err;
1472
1473         dev_dbg(&d->intf->dev, "RD SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1474
1475         if (onoff) {
1476                 gpio |= 0x01; /* GPIO0 = 1 */
1477                 gpio &= (~0x10); /* GPIO4 = 0 */
1478                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1479                 sys0 = sys0 & 0x0f;
1480                 sys0 |= 0xe0;
1481                 epa_ctl[0] = 0x00; /* clear stall */
1482                 epa_ctl[1] = 0x00; /* clear reset */
1483         } else {
1484                 gpio &= (~0x01); /* GPIO0 = 0 */
1485                 gpio |= 0x10; /* GPIO4 = 1 */
1486                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1487                 sys0 = sys0 & (~0xc0);
1488                 epa_ctl[0] = 0x10; /* set stall */
1489                 epa_ctl[1] = 0x02; /* set reset */
1490         }
1491
1492         dev_dbg(&d->intf->dev, "WR SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1493
1494         /* demod adc */
1495         ret = rtl28xxu_wr_reg(d, SYS_SYS0, sys0);
1496         if (ret)
1497                 goto err;
1498
1499         /* tuner power, write GPIOs */
1500         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1501         if (ret)
1502                 goto err;
1503
1504         /* streaming EP: stall & reset */
1505         ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1506         if (ret)
1507                 goto err;
1508
1509         if (onoff)
1510                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1511
1512         return ret;
1513 err:
1514         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1515         return ret;
1516 }
1517
1518 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1519 {
1520         int ret;
1521
1522         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1523
1524         if (onoff) {
1525                 /* GPIO3=1, GPIO4=0 */
1526                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1527                 if (ret)
1528                         goto err;
1529
1530                 /* suspend? */
1531                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1532                 if (ret)
1533                         goto err;
1534
1535                 /* enable PLL */
1536                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1537                 if (ret)
1538                         goto err;
1539
1540                 /* disable reset */
1541                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1542                 if (ret)
1543                         goto err;
1544
1545                 /* streaming EP: clear stall & reset */
1546                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1547                 if (ret)
1548                         goto err;
1549
1550                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1551                 if (ret)
1552                         goto err;
1553         } else {
1554                 /* GPIO4=1 */
1555                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1556                 if (ret)
1557                         goto err;
1558
1559                 /* disable PLL */
1560                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1561                 if (ret)
1562                         goto err;
1563
1564                 /* streaming EP: set stall & reset */
1565                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1566                 if (ret)
1567                         goto err;
1568         }
1569
1570         return ret;
1571 err:
1572         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1573         return ret;
1574 }
1575
1576 static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
1577 {
1578         struct rtl28xxu_dev *dev = d_to_priv(d);
1579
1580         if (dev->chip_id == CHIP_ID_RTL2831U)
1581                 return rtl2831u_power_ctrl(d, onoff);
1582         else
1583                 return rtl2832u_power_ctrl(d, onoff);
1584 }
1585
1586 static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
1587 {
1588         struct dvb_usb_device *d = fe_to_d(fe);
1589         struct rtl28xxu_dev *dev = fe_to_priv(fe);
1590         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1591         int ret;
1592         u8 val;
1593
1594         dev_dbg(&d->intf->dev, "fe=%d onoff=%d\n", fe->id, onoff);
1595
1596         if (dev->chip_id == CHIP_ID_RTL2831U)
1597                 return 0;
1598
1599         if (fe->id == 0) {
1600                 /* control internal demod ADC */
1601                 if (onoff)
1602                         val = 0x48; /* enable ADC */
1603                 else
1604                         val = 0x00; /* disable ADC */
1605
1606                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
1607                 if (ret)
1608                         goto err;
1609         } else if (fe->id == 1) {
1610                 /* bypass slave demod TS through master demod */
1611                 ret = pdata->slave_ts_ctrl(dev->i2c_client_demod, onoff);
1612                 if (ret)
1613                         goto err;
1614         }
1615
1616         return 0;
1617 err:
1618         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1619         return ret;
1620 }
1621
1622 #if IS_ENABLED(CONFIG_RC_CORE)
1623 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1624 {
1625         int ret, i;
1626         struct rtl28xxu_dev *dev = d->priv;
1627         u8 buf[5];
1628         u32 rc_code;
1629         static const struct rtl28xxu_reg_val rc_nec_tab[] = {
1630                 { 0x3033, 0x80 },
1631                 { 0x3020, 0x43 },
1632                 { 0x3021, 0x16 },
1633                 { 0x3022, 0x16 },
1634                 { 0x3023, 0x5a },
1635                 { 0x3024, 0x2d },
1636                 { 0x3025, 0x16 },
1637                 { 0x3026, 0x01 },
1638                 { 0x3028, 0xb0 },
1639                 { 0x3029, 0x04 },
1640                 { 0x302c, 0x88 },
1641                 { 0x302e, 0x13 },
1642                 { 0x3030, 0xdf },
1643                 { 0x3031, 0x05 },
1644         };
1645
1646         /* init remote controller */
1647         if (!dev->rc_active) {
1648                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1649                         ret = rtl28xxu_wr_reg(d, rc_nec_tab[i].reg,
1650                                         rc_nec_tab[i].val);
1651                         if (ret)
1652                                 goto err;
1653                 }
1654                 dev->rc_active = true;
1655         }
1656
1657         ret = rtl28xxu_rd_regs(d, SYS_IRRC_RP, buf, 5);
1658         if (ret)
1659                 goto err;
1660
1661         if (buf[4] & 0x01) {
1662                 enum rc_proto proto;
1663
1664                 if (buf[2] == (u8) ~buf[3]) {
1665                         if (buf[0] == (u8) ~buf[1]) {
1666                                 /* NEC standard (16 bit) */
1667                                 rc_code = RC_SCANCODE_NEC(buf[0], buf[2]);
1668                                 proto = RC_PROTO_NEC;
1669                         } else {
1670                                 /* NEC extended (24 bit) */
1671                                 rc_code = RC_SCANCODE_NECX(buf[0] << 8 | buf[1],
1672                                                            buf[2]);
1673                                 proto = RC_PROTO_NECX;
1674                         }
1675                 } else {
1676                         /* NEC full (32 bit) */
1677                         rc_code = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1678                                                     buf[2] << 8  | buf[3]);
1679                         proto = RC_PROTO_NEC32;
1680                 }
1681
1682                 rc_keydown(d->rc_dev, proto, rc_code, 0);
1683
1684                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1685                 if (ret)
1686                         goto err;
1687
1688                 /* repeated intentionally to avoid extra keypress */
1689                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1690                 if (ret)
1691                         goto err;
1692         }
1693
1694         return ret;
1695 err:
1696         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1697         return ret;
1698 }
1699
1700 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1701                 struct dvb_usb_rc *rc)
1702 {
1703         rc->map_name = RC_MAP_EMPTY;
1704         rc->allowed_protos = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
1705                                                         RC_PROTO_BIT_NEC32;
1706         rc->query = rtl2831u_rc_query;
1707         rc->interval = 400;
1708
1709         return 0;
1710 }
1711
1712 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1713 {
1714         int ret, i, len;
1715         struct rtl28xxu_dev *dev = d->priv;
1716         struct ir_raw_event ev = {};
1717         u8 buf[128];
1718         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1719                 {IR_RX_IF,               0x03, 0xff},
1720                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1721                 {IR_RX_CTRL,             0x80, 0xff},
1722         };
1723
1724         /* init remote controller */
1725         if (!dev->rc_active) {
1726                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1727                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1728                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1729                         {USB_CTRL,               0x20, 0x20},
1730                         {SYS_GPIO_DIR,           0x00, 0x08},
1731                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1732                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1733                         {IR_MAX_DURATION0,       0xd0, 0xff},
1734                         {IR_MAX_DURATION1,       0x07, 0xff},
1735                         {IR_IDLE_LEN0,           0xc0, 0xff},
1736                         {IR_IDLE_LEN1,           0x00, 0xff},
1737                         {IR_GLITCH_LEN,          0x03, 0xff},
1738                         {IR_RX_CLK,              0x09, 0xff},
1739                         {IR_RX_CFG,              0x1c, 0xff},
1740                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1741                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1742                         {IR_RX_CTRL,             0x80, 0xff},
1743                 };
1744
1745                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1746                         ret = rtl28xxu_wr_reg_mask(d, init_tab[i].reg,
1747                                         init_tab[i].val, init_tab[i].mask);
1748                         if (ret)
1749                                 goto err;
1750                 }
1751
1752                 dev->rc_active = true;
1753         }
1754
1755         ret = rtl28xxu_rd_reg(d, IR_RX_IF, &buf[0]);
1756         if (ret)
1757                 goto err;
1758
1759         if (buf[0] != 0x83)
1760                 goto exit;
1761
1762         ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
1763         if (ret || buf[0] > sizeof(buf))
1764                 goto err;
1765
1766         len = buf[0];
1767
1768         /* read raw code from hw */
1769         ret = rtl28xxu_rd_regs(d, IR_RX_BUF, buf, len);
1770         if (ret)
1771                 goto err;
1772
1773         /* let hw receive new code */
1774         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1775                 ret = rtl28xxu_wr_reg_mask(d, refresh_tab[i].reg,
1776                                 refresh_tab[i].val, refresh_tab[i].mask);
1777                 if (ret)
1778                         goto err;
1779         }
1780
1781         /* pass data to Kernel IR decoder */
1782         for (i = 0; i < len; i++) {
1783                 ev.pulse = buf[i] >> 7;
1784                 ev.duration = 51 * (buf[i] & 0x7f);
1785                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1786         }
1787
1788         /* 'flush' ir_raw_event_store_with_filter() */
1789         ir_raw_event_handle(d->rc_dev);
1790 exit:
1791         return ret;
1792 err:
1793         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1794         return ret;
1795 }
1796
1797 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1798                 struct dvb_usb_rc *rc)
1799 {
1800         /* disable IR interrupts in order to avoid SDR sample loss */
1801         if (rtl28xxu_disable_rc)
1802                 return rtl28xxu_wr_reg(d, IR_RX_IE, 0x00);
1803
1804         /* load empty to enable rc */
1805         if (!rc->map_name)
1806                 rc->map_name = RC_MAP_EMPTY;
1807         rc->allowed_protos = RC_PROTO_BIT_ALL_IR_DECODER;
1808         rc->driver_type = RC_DRIVER_IR_RAW;
1809         rc->query = rtl2832u_rc_query;
1810         rc->interval = 200;
1811         /* we program idle len to 0xc0, set timeout to one less */
1812         rc->timeout = 0xbf * 51;
1813
1814         return 0;
1815 }
1816
1817 static int rtl28xxu_get_rc_config(struct dvb_usb_device *d,
1818                 struct dvb_usb_rc *rc)
1819 {
1820         struct rtl28xxu_dev *dev = d_to_priv(d);
1821
1822         if (dev->chip_id == CHIP_ID_RTL2831U)
1823                 return rtl2831u_get_rc_config(d, rc);
1824         else
1825                 return rtl2832u_get_rc_config(d, rc);
1826 }
1827 #else
1828 #define rtl28xxu_get_rc_config NULL
1829 #endif
1830
1831 static int rtl28xxu_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1832 {
1833         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1834
1835         if (dev->chip_id == CHIP_ID_RTL2831U) {
1836                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1837
1838                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1839         } else {
1840                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1841
1842                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1843         }
1844 }
1845
1846 static int rtl28xxu_pid_filter(struct dvb_usb_adapter *adap, int index,
1847                                u16 pid, int onoff)
1848 {
1849         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1850
1851         if (dev->chip_id == CHIP_ID_RTL2831U) {
1852                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1853
1854                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1855         } else {
1856                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1857
1858                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1859         }
1860 }
1861
1862 static const struct dvb_usb_device_properties rtl28xxu_props = {
1863         .driver_name = KBUILD_MODNAME,
1864         .owner = THIS_MODULE,
1865         .adapter_nr = adapter_nr,
1866         .size_of_priv = sizeof(struct rtl28xxu_dev),
1867
1868         .identify_state = rtl28xxu_identify_state,
1869         .power_ctrl = rtl28xxu_power_ctrl,
1870         .frontend_ctrl = rtl28xxu_frontend_ctrl,
1871         .i2c_algo = &rtl28xxu_i2c_algo,
1872         .read_config = rtl28xxu_read_config,
1873         .frontend_attach = rtl28xxu_frontend_attach,
1874         .frontend_detach = rtl28xxu_frontend_detach,
1875         .tuner_attach = rtl28xxu_tuner_attach,
1876         .tuner_detach = rtl28xxu_tuner_detach,
1877         .init = rtl28xxu_init,
1878         .get_rc_config = rtl28xxu_get_rc_config,
1879
1880         .num_adapters = 1,
1881         .adapter = {
1882                 {
1883                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1884                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1885
1886                         .pid_filter_count = 32,
1887                         .pid_filter_ctrl = rtl28xxu_pid_filter_ctrl,
1888                         .pid_filter = rtl28xxu_pid_filter,
1889
1890                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1891                 },
1892         },
1893 };
1894
1895 static const struct usb_device_id rtl28xxu_id_table[] = {
1896         /* RTL2831U devices: */
1897         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1898                 &rtl28xxu_props, "Realtek RTL2831U reference design", NULL) },
1899         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1900                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1901         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1902                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1903
1904         /* RTL2832U devices: */
1905         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1906                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1907         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1908                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1909         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1910                 &rtl28xxu_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1911         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1912                 &rtl28xxu_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1913         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1914                 &rtl28xxu_props, "TerraTec NOXON DAB Stick", NULL) },
1915         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1916                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1917         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1918                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1919         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1920                 &rtl28xxu_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1921         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1922                 &rtl28xxu_props, "Dexatek DK DVB-T Dongle", NULL) },
1923         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1924                 &rtl28xxu_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1925         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1926                 &rtl28xxu_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1927         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV2000DS_PLUS,
1928                 &rtl28xxu_props, "Leadtek WinFast DTV2000DS Plus", RC_MAP_LEADTEK_Y04G0051) },
1929         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1930                 &rtl28xxu_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1931         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1932                 &rtl28xxu_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1933         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1934                 &rtl28xxu_props, "TerraTec Cinergy T Stick+", NULL) },
1935         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1936                 &rtl28xxu_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1937         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1938                 &rtl28xxu_props, "GIGABYTE U7300", NULL) },
1939         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1940                 &rtl28xxu_props, "MSI DIGIVOX Micro HD", NULL) },
1941         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1942                 &rtl28xxu_props, "Compro VideoMate U620F", NULL) },
1943         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0650,
1944                 &rtl28xxu_props, "Compro VideoMate U650F", NULL) },
1945         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1946                 &rtl28xxu_props, "MaxMedia HU394-T", NULL) },
1947         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1948                 &rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1949         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1950                 &rtl28xxu_props, "Crypto ReDi PC 50 A", NULL) },
1951         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1952                 &rtl28xxu_props, "Genius TVGo DVB-T03", NULL) },
1953         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
1954                 &rtl28xxu_props, "Peak DVB-T USB", NULL) },
1955         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
1956                 &rtl28xxu_props, "Sveon STV20", NULL) },
1957         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV21,
1958                 &rtl28xxu_props, "Sveon STV21", NULL) },
1959         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
1960                 &rtl28xxu_props, "Sveon STV27", NULL) },
1961         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_TURBOX_DTT_2000,
1962                 &rtl28xxu_props, "TURBO-X Pure TV Tuner DTT-2000", NULL) },
1963         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_PROLECTRIX_DV107669,
1964                 &rtl28xxu_props, "PROlectrix DV107669", NULL) },
1965
1966         /* RTL2832P devices: */
1967         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1968                 &rtl28xxu_props, "Astrometa DVB-T2",
1969                 RC_MAP_ASTROMETA_T2HYBRID) },
1970         { DVB_USB_DEVICE(0x5654, 0xca42,
1971                 &rtl28xxu_props, "GoTView MasterHD 3", NULL) },
1972         { }
1973 };
1974 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1975
1976 static struct usb_driver rtl28xxu_usb_driver = {
1977         .name = KBUILD_MODNAME,
1978         .id_table = rtl28xxu_id_table,
1979         .probe = dvb_usbv2_probe,
1980         .disconnect = dvb_usbv2_disconnect,
1981         .suspend = dvb_usbv2_suspend,
1982         .resume = dvb_usbv2_resume,
1983         .reset_resume = dvb_usbv2_reset_resume,
1984         .no_dynamic_id = 1,
1985         .soft_unbind = 1,
1986 };
1987
1988 module_usb_driver(rtl28xxu_usb_driver);
1989
1990 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1991 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1992 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1993 MODULE_LICENSE("GPL");