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

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
rtl28xxu_ctrl_msg
rtl28xxu_wr_regs
rtl28xxu_rd_regs
rtl28xxu_wr_reg
rtl28xxu_rd_reg
rtl28xxu_wr_reg_mask
rtl28xxu_i2c_xfer
rtl28xxu_i2c_func
rtl2831u_read_config
rtl2832u_read_config
rtl28xxu_read_config
rtl28xxu_identify_state
rtl2831u_frontend_attach
rtl2832u_fc0012_tuner_callback
rtl2832u_tua9001_tuner_callback
rtl2832u_frontend_callback
rtl2832u_frontend_attach
rtl28xxu_frontend_attach
rtl28xxu_frontend_detach
rtl2831u_tuner_attach
rtl2832u_tuner_attach
rtl28xxu_tuner_attach
rtl28xxu_tuner_detach
rtl28xxu_init
rtl2831u_power_ctrl
rtl2832u_power_ctrl
rtl28xxu_power_ctrl
rtl28xxu_frontend_ctrl
rtl2831u_rc_query
rtl2831u_get_rc_config
rtl2832u_rc_query
rtl2832u_get_rc_config
rtl28xxu_get_rc_config
rtl28xxu_pid_filter_ctrl
rtl28xxu_pid_filter
   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                 pipe = usb_rcvctrlpipe(d->udev, 0);
  41         }
  42 
  43         ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
  44                         req->index, dev->buf, req->size, 1000);
  45         dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
  46                         req->index, dev->buf, req->size);
  47         if (ret < 0)
  48                 goto err_mutex_unlock;
  49 
  50         /* read request, copy returned data to return buf */
  51         if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
  52                 memcpy(req->data, dev->buf, req->size);
  53 
  54         mutex_unlock(&d->usb_mutex);
  55 
  56         return 0;
  57 err_mutex_unlock:
  58         mutex_unlock(&d->usb_mutex);
  59         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
  60         return ret;
  61 }
  62 
  63 static int rtl28xxu_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  64 {
  65         struct rtl28xxu_req req;
  66 
  67         if (reg < 0x3000)
  68                 req.index = CMD_USB_WR;
  69         else if (reg < 0x4000)
  70                 req.index = CMD_SYS_WR;
  71         else
  72                 req.index = CMD_IR_WR;
  73 
  74         req.value = reg;
  75         req.size = len;
  76         req.data = val;
  77 
  78         return rtl28xxu_ctrl_msg(d, &req);
  79 }
  80 
  81 static int rtl28xxu_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
  82 {
  83         struct rtl28xxu_req req;
  84 
  85         if (reg < 0x3000)
  86                 req.index = CMD_USB_RD;
  87         else if (reg < 0x4000)
  88                 req.index = CMD_SYS_RD;
  89         else
  90                 req.index = CMD_IR_RD;
  91 
  92         req.value = reg;
  93         req.size = len;
  94         req.data = val;
  95 
  96         return rtl28xxu_ctrl_msg(d, &req);
  97 }
  98 
  99 static int rtl28xxu_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
 100 {
 101         return rtl28xxu_wr_regs(d, reg, &val, 1);
 102 }
 103 
 104 static int rtl28xxu_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
 105 {
 106         return rtl28xxu_rd_regs(d, reg, val, 1);
 107 }
 108 
 109 static int rtl28xxu_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
 110                 u8 mask)
 111 {
 112         int ret;
 113         u8 tmp;
 114 
 115         /* no need for read if whole reg is written */
 116         if (mask != 0xff) {
 117                 ret = rtl28xxu_rd_reg(d, reg, &tmp);
 118                 if (ret)
 119                         return ret;
 120 
 121                 val &= mask;
 122                 tmp &= ~mask;
 123                 val |= tmp;
 124         }
 125 
 126         return rtl28xxu_wr_reg(d, reg, val);
 127 }
 128 
 129 /* I2C */
 130 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 131         int num)
 132 {
 133         int ret;
 134         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 135         struct rtl28xxu_dev *dev = d->priv;
 136         struct rtl28xxu_req req;
 137 
 138         /*
 139          * It is not known which are real I2C bus xfer limits, but testing
 140          * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
 141          * TODO: find out RTL2832U lens
 142          */
 143 
 144         /*
 145          * I2C adapter logic looks rather complicated due to fact it handles
 146          * three different access methods. Those methods are;
 147          * 1) integrated demod access
 148          * 2) old I2C access
 149          * 3) new I2C access
 150          *
 151          * Used method is selected in order 1, 2, 3. Method 3 can handle all
 152          * requests but there is two reasons why not use it always;
 153          * 1) It is most expensive, usually two USB messages are needed
 154          * 2) At least RTL2831U does not support it
 155          *
 156          * Method 3 is needed in case of I2C write+read (typical register read)
 157          * where write is more than one byte.
 158          */
 159 
 160         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 161                 return -EAGAIN;
 162 
 163         if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
 164                 (msg[1].flags & I2C_M_RD)) {
 165                 if (msg[0].len > 24 || msg[1].len > 24) {
 166                         /* TODO: check msg[0].len max */
 167                         ret = -EOPNOTSUPP;
 168                         goto err_mutex_unlock;
 169                 } else if (msg[0].addr == 0x10) {
 170                         /* method 1 - integrated demod */
 171                         if (msg[0].buf[0] == 0x00) {
 172                                 /* return demod page from driver cache */
 173                                 msg[1].buf[0] = dev->page;
 174                                 ret = 0;
 175                         } else {
 176                                 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 177                                 req.index = CMD_DEMOD_RD | dev->page;
 178                                 req.size = msg[1].len;
 179                                 req.data = &msg[1].buf[0];
 180                                 ret = rtl28xxu_ctrl_msg(d, &req);
 181                         }
 182                 } else if (msg[0].len < 2) {
 183                         /* method 2 - old I2C */
 184                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 185                         req.index = CMD_I2C_RD;
 186                         req.size = msg[1].len;
 187                         req.data = &msg[1].buf[0];
 188                         ret = rtl28xxu_ctrl_msg(d, &req);
 189                 } else {
 190                         /* method 3 - new I2C */
 191                         req.value = (msg[0].addr << 1);
 192                         req.index = CMD_I2C_DA_WR;
 193                         req.size = msg[0].len;
 194                         req.data = msg[0].buf;
 195                         ret = rtl28xxu_ctrl_msg(d, &req);
 196                         if (ret)
 197                                 goto err_mutex_unlock;
 198 
 199                         req.value = (msg[0].addr << 1);
 200                         req.index = CMD_I2C_DA_RD;
 201                         req.size = msg[1].len;
 202                         req.data = msg[1].buf;
 203                         ret = rtl28xxu_ctrl_msg(d, &req);
 204                 }
 205         } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
 206                 if (msg[0].len > 22) {
 207                         /* TODO: check msg[0].len max */
 208                         ret = -EOPNOTSUPP;
 209                         goto err_mutex_unlock;
 210                 } else if (msg[0].addr == 0x10) {
 211                         /* method 1 - integrated demod */
 212                         if (msg[0].buf[0] == 0x00) {
 213                                 /* save demod page for later demod access */
 214                                 dev->page = msg[0].buf[1];
 215                                 ret = 0;
 216                         } else {
 217                                 req.value = (msg[0].buf[0] << 8) |
 218                                         (msg[0].addr << 1);
 219                                 req.index = CMD_DEMOD_WR | dev->page;
 220                                 req.size = msg[0].len-1;
 221                                 req.data = &msg[0].buf[1];
 222                                 ret = rtl28xxu_ctrl_msg(d, &req);
 223                         }
 224                 } else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
 225                         /* method 2 - old I2C */
 226                         req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
 227                         req.index = CMD_I2C_WR;
 228                         req.size = msg[0].len-1;
 229                         req.data = &msg[0].buf[1];
 230                         ret = rtl28xxu_ctrl_msg(d, &req);
 231                 } else {
 232                         /* method 3 - new I2C */
 233                         req.value = (msg[0].addr << 1);
 234                         req.index = CMD_I2C_DA_WR;
 235                         req.size = msg[0].len;
 236                         req.data = msg[0].buf;
 237                         ret = rtl28xxu_ctrl_msg(d, &req);
 238                 }
 239         } else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
 240                 req.value = (msg[0].addr << 1);
 241                 req.index = CMD_I2C_DA_RD;
 242                 req.size = msg[0].len;
 243                 req.data = msg[0].buf;
 244                 ret = rtl28xxu_ctrl_msg(d, &req);
 245         } else {
 246                 ret = -EOPNOTSUPP;
 247         }
 248 
 249         /* Retry failed I2C messages */
 250         if (ret == -EPIPE)
 251                 ret = -EAGAIN;
 252 
 253 err_mutex_unlock:
 254         mutex_unlock(&d->i2c_mutex);
 255 
 256         return ret ? ret : num;
 257 }
 258 
 259 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
 260 {
 261         return I2C_FUNC_I2C;
 262 }
 263 
 264 static struct i2c_algorithm rtl28xxu_i2c_algo = {
 265         .master_xfer   = rtl28xxu_i2c_xfer,
 266         .functionality = rtl28xxu_i2c_func,
 267 };
 268 
 269 static int rtl2831u_read_config(struct dvb_usb_device *d)
 270 {
 271         struct rtl28xxu_dev *dev = d_to_priv(d);
 272         int ret;
 273         u8 buf[1];
 274         /* open RTL2831U/RTL2830 I2C gate */
 275         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
 276         /* tuner probes */
 277         struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
 278         struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
 279 
 280         dev_dbg(&d->intf->dev, "\n");
 281 
 282         /*
 283          * RTL2831U GPIOs
 284          * =========================================================
 285          * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
 286          * GPIO2 | LED     | 0 off | 1 on  |
 287          * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
 288          */
 289 
 290         /* GPIO direction */
 291         ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
 292         if (ret)
 293                 goto err;
 294 
 295         /* enable as output GPIO0, GPIO2, GPIO4 */
 296         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
 297         if (ret)
 298                 goto err;
 299 
 300         /*
 301          * Probe used tuner. We need to know used tuner before demod attach
 302          * since there is some demod params needed to set according to tuner.
 303          */
 304 
 305         /* demod needs some time to wake up */
 306         msleep(20);
 307 
 308         dev->tuner_name = "NONE";
 309 
 310         /* open demod I2C gate */
 311         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 312         if (ret)
 313                 goto err;
 314 
 315         /* check QT1010 ID(?) register; reg=0f val=2c */
 316         ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
 317         if (ret == 0 && buf[0] == 0x2c) {
 318                 dev->tuner = TUNER_RTL2830_QT1010;
 319                 dev->tuner_name = "QT1010";
 320                 goto found;
 321         }
 322 
 323         /* open demod I2C gate */
 324         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 325         if (ret)
 326                 goto err;
 327 
 328         /* check MT2060 ID register; reg=00 val=63 */
 329         ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
 330         if (ret == 0 && buf[0] == 0x63) {
 331                 dev->tuner = TUNER_RTL2830_MT2060;
 332                 dev->tuner_name = "MT2060";
 333                 goto found;
 334         }
 335 
 336         /* assume MXL5005S */
 337         dev->tuner = TUNER_RTL2830_MXL5005S;
 338         dev->tuner_name = "MXL5005S";
 339         goto found;
 340 
 341 found:
 342         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 343 
 344         return 0;
 345 err:
 346         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 347         return ret;
 348 }
 349 
 350 static int rtl2832u_read_config(struct dvb_usb_device *d)
 351 {
 352         struct rtl28xxu_dev *dev = d_to_priv(d);
 353         int ret;
 354         u8 buf[2];
 355         /* open RTL2832U/RTL2832 I2C gate */
 356         struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
 357         /* close RTL2832U/RTL2832 I2C gate */
 358         struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
 359         /* tuner probes */
 360         struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
 361         struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
 362         struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
 363         struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
 364         struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
 365         struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
 366         struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
 367         struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
 368         struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 369         struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 370         struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
 371         struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 372         struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
 373         struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
 374         struct rtl28xxu_req req_cxd2837er = {0xfdd8, CMD_I2C_RD, 1, buf};
 375         struct rtl28xxu_req req_si2157 = {0x00c0, CMD_I2C_RD, 1, buf};
 376         struct rtl28xxu_req req_si2168 = {0x00c8, CMD_I2C_RD, 1, buf};
 377 
 378         dev_dbg(&d->intf->dev, "\n");
 379 
 380         /* enable GPIO3 and GPIO6 as output */
 381         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
 382         if (ret)
 383                 goto err;
 384 
 385         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
 386         if (ret)
 387                 goto err;
 388 
 389         /*
 390          * Probe used tuner. We need to know used tuner before demod attach
 391          * since there is some demod params needed to set according to tuner.
 392          */
 393 
 394         /* open demod I2C gate */
 395         ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
 396         if (ret)
 397                 goto err;
 398 
 399         dev->tuner_name = "NONE";
 400 
 401         /* check FC0012 ID register; reg=00 val=a1 */
 402         ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
 403         if (ret == 0 && buf[0] == 0xa1) {
 404                 dev->tuner = TUNER_RTL2832_FC0012;
 405                 dev->tuner_name = "FC0012";
 406                 goto tuner_found;
 407         }
 408 
 409         /* check FC0013 ID register; reg=00 val=a3 */
 410         ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
 411         if (ret == 0 && buf[0] == 0xa3) {
 412                 dev->tuner = TUNER_RTL2832_FC0013;
 413                 dev->tuner_name = "FC0013";
 414                 goto tuner_found;
 415         }
 416 
 417         /* check MT2266 ID register; reg=00 val=85 */
 418         ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
 419         if (ret == 0 && buf[0] == 0x85) {
 420                 dev->tuner = TUNER_RTL2832_MT2266;
 421                 dev->tuner_name = "MT2266";
 422                 goto tuner_found;
 423         }
 424 
 425         /* check FC2580 ID register; reg=01 val=56 */
 426         ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
 427         if (ret == 0 && buf[0] == 0x56) {
 428                 dev->tuner = TUNER_RTL2832_FC2580;
 429                 dev->tuner_name = "FC2580";
 430                 goto tuner_found;
 431         }
 432 
 433         /* check MT2063 ID register; reg=00 val=9e || 9c */
 434         ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
 435         if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
 436                 dev->tuner = TUNER_RTL2832_MT2063;
 437                 dev->tuner_name = "MT2063";
 438                 goto tuner_found;
 439         }
 440 
 441         /* check MAX3543 ID register; reg=00 val=38 */
 442         ret = rtl28xxu_ctrl_msg(d, &req_max3543);
 443         if (ret == 0 && buf[0] == 0x38) {
 444                 dev->tuner = TUNER_RTL2832_MAX3543;
 445                 dev->tuner_name = "MAX3543";
 446                 goto tuner_found;
 447         }
 448 
 449         /* check TUA9001 ID register; reg=7e val=2328 */
 450         ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
 451         if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
 452                 dev->tuner = TUNER_RTL2832_TUA9001;
 453                 dev->tuner_name = "TUA9001";
 454                 goto tuner_found;
 455         }
 456 
 457         /* check MXL5007R ID register; reg=d9 val=14 */
 458         ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
 459         if (ret == 0 && buf[0] == 0x14) {
 460                 dev->tuner = TUNER_RTL2832_MXL5007T;
 461                 dev->tuner_name = "MXL5007T";
 462                 goto tuner_found;
 463         }
 464 
 465         /* check E4000 ID register; reg=02 val=40 */
 466         ret = rtl28xxu_ctrl_msg(d, &req_e4000);
 467         if (ret == 0 && buf[0] == 0x40) {
 468                 dev->tuner = TUNER_RTL2832_E4000;
 469                 dev->tuner_name = "E4000";
 470                 goto tuner_found;
 471         }
 472 
 473         /* check TDA18272 ID register; reg=00 val=c760  */
 474         ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
 475         if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
 476                 dev->tuner = TUNER_RTL2832_TDA18272;
 477                 dev->tuner_name = "TDA18272";
 478                 goto tuner_found;
 479         }
 480 
 481         /* check R820T ID register; reg=00 val=69 */
 482         ret = rtl28xxu_ctrl_msg(d, &req_r820t);
 483         if (ret == 0 && buf[0] == 0x69) {
 484                 dev->tuner = TUNER_RTL2832_R820T;
 485                 dev->tuner_name = "R820T";
 486                 goto tuner_found;
 487         }
 488 
 489         /* check R828D ID register; reg=00 val=69 */
 490         ret = rtl28xxu_ctrl_msg(d, &req_r828d);
 491         if (ret == 0 && buf[0] == 0x69) {
 492                 dev->tuner = TUNER_RTL2832_R828D;
 493                 dev->tuner_name = "R828D";
 494                 goto tuner_found;
 495         }
 496 
 497         /* GPIO0 and GPIO5 to reset Si2157/Si2168 tuner and demod */
 498         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x21);
 499         if (ret)
 500                 goto err;
 501 
 502         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x21);
 503         if (ret)
 504                 goto err;
 505 
 506         msleep(50);
 507 
 508         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x21, 0x21);
 509         if (ret)
 510                 goto err;
 511 
 512         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x21, 0x21);
 513         if (ret)
 514                 goto err;
 515 
 516         msleep(50);
 517 
 518         /* check Si2157 ID register; reg=c0 val=80 */
 519         ret = rtl28xxu_ctrl_msg(d, &req_si2157);
 520         if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 521                 dev->tuner = TUNER_RTL2832_SI2157;
 522                 dev->tuner_name = "SI2157";
 523                 goto tuner_found;
 524         }
 525 
 526 tuner_found:
 527         dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
 528 
 529         /* probe slave demod */
 530         if (dev->tuner == TUNER_RTL2832_R828D) {
 531                 /* power off slave demod on GPIO0 to reset CXD2837ER */
 532                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
 533                 if (ret)
 534                         goto err;
 535 
 536                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x01);
 537                 if (ret)
 538                         goto err;
 539 
 540                 msleep(50);
 541 
 542                 /* power on slave demod on GPIO0 */
 543                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
 544                 if (ret)
 545                         goto err;
 546 
 547                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
 548                 if (ret)
 549                         goto err;
 550 
 551                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
 552                 if (ret)
 553                         goto err;
 554 
 555                 /* check slave answers */
 556                 ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
 557                 if (ret == 0 && buf[0] == 0x02) {
 558                         dev_dbg(&d->intf->dev, "MN88472 found\n");
 559                         dev->slave_demod = SLAVE_DEMOD_MN88472;
 560                         goto demod_found;
 561                 }
 562 
 563                 ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
 564                 if (ret == 0 && buf[0] == 0x03) {
 565                         dev_dbg(&d->intf->dev, "MN88473 found\n");
 566                         dev->slave_demod = SLAVE_DEMOD_MN88473;
 567                         goto demod_found;
 568                 }
 569 
 570                 ret = rtl28xxu_ctrl_msg(d, &req_cxd2837er);
 571                 if (ret == 0 && buf[0] == 0xb1) {
 572                         dev_dbg(&d->intf->dev, "CXD2837ER found\n");
 573                         dev->slave_demod = SLAVE_DEMOD_CXD2837ER;
 574                         goto demod_found;
 575                 }
 576         }
 577         if (dev->tuner == TUNER_RTL2832_SI2157) {
 578                 /* check Si2168 ID register; reg=c8 val=80 */
 579                 ret = rtl28xxu_ctrl_msg(d, &req_si2168);
 580                 if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
 581                         dev_dbg(&d->intf->dev, "Si2168 found\n");
 582                         dev->slave_demod = SLAVE_DEMOD_SI2168;
 583                         goto demod_found;
 584                 }
 585         }
 586 
 587 demod_found:
 588         /* close demod I2C gate */
 589         ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
 590         if (ret < 0)
 591                 goto err;
 592 
 593         return 0;
 594 err:
 595         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 596         return ret;
 597 }
 598 
 599 static int rtl28xxu_read_config(struct dvb_usb_device *d)
 600 {
 601         struct rtl28xxu_dev *dev = d_to_priv(d);
 602 
 603         if (dev->chip_id == CHIP_ID_RTL2831U)
 604                 return rtl2831u_read_config(d);
 605         else
 606                 return rtl2832u_read_config(d);
 607 }
 608 
 609 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
 610 {
 611         struct rtl28xxu_dev *dev = d_to_priv(d);
 612         int ret;
 613         struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
 614 
 615         dev_dbg(&d->intf->dev, "\n");
 616 
 617         /*
 618          * Detect chip type using I2C command that is not supported
 619          * by old RTL2831U.
 620          */
 621         ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
 622         if (ret == -EPIPE) {
 623                 dev->chip_id = CHIP_ID_RTL2831U;
 624         } else if (ret == 0) {
 625                 dev->chip_id = CHIP_ID_RTL2832U;
 626         } else {
 627                 dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
 628                 goto err;
 629         }
 630         dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
 631 
 632         /* Retry failed I2C messages */
 633         d->i2c_adap.retries = 3;
 634         d->i2c_adap.timeout = msecs_to_jiffies(10);
 635 
 636         return WARM;
 637 err:
 638         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 639         return ret;
 640 }
 641 
 642 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
 643         .clk = 28800000,
 644         .spec_inv = 1,
 645         .vtop = 0x20,
 646         .krf = 0x04,
 647         .agc_targ_val = 0x2d,
 648 
 649 };
 650 
 651 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
 652         .clk = 28800000,
 653         .spec_inv = 1,
 654         .vtop = 0x20,
 655         .krf = 0x04,
 656         .agc_targ_val = 0x2d,
 657 };
 658 
 659 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
 660         .clk = 28800000,
 661         .spec_inv = 0,
 662         .vtop = 0x3f,
 663         .krf = 0x04,
 664         .agc_targ_val = 0x3e,
 665 };
 666 
 667 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
 668 {
 669         struct dvb_usb_device *d = adap_to_d(adap);
 670         struct rtl28xxu_dev *dev = d_to_priv(d);
 671         struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
 672         struct i2c_board_info board_info;
 673         struct i2c_client *client;
 674         int ret;
 675 
 676         dev_dbg(&d->intf->dev, "\n");
 677 
 678         switch (dev->tuner) {
 679         case TUNER_RTL2830_QT1010:
 680                 *pdata = rtl2830_qt1010_platform_data;
 681                 break;
 682         case TUNER_RTL2830_MT2060:
 683                 *pdata = rtl2830_mt2060_platform_data;
 684                 break;
 685         case TUNER_RTL2830_MXL5005S:
 686                 *pdata = rtl2830_mxl5005s_platform_data;
 687                 break;
 688         default:
 689                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 690                 ret = -ENODEV;
 691                 goto err;
 692         }
 693 
 694         /* attach demodulator */
 695         memset(&board_info, 0, sizeof(board_info));
 696         strscpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
 697         board_info.addr = 0x10;
 698         board_info.platform_data = pdata;
 699         request_module("%s", board_info.type);
 700         client = i2c_new_device(&d->i2c_adap, &board_info);
 701         if (client == NULL || client->dev.driver == NULL) {
 702                 ret = -ENODEV;
 703                 goto err;
 704         }
 705 
 706         if (!try_module_get(client->dev.driver->owner)) {
 707                 i2c_unregister_device(client);
 708                 ret = -ENODEV;
 709                 goto err;
 710         }
 711 
 712         adap->fe[0] = pdata->get_dvb_frontend(client);
 713         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 714 
 715         dev->i2c_client_demod = client;
 716 
 717         return 0;
 718 err:
 719         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 720         return ret;
 721 }
 722 
 723 static const struct rtl2832_platform_data rtl2832_fc2580_platform_data = {
 724         .clk = 28800000,
 725         .tuner = TUNER_RTL2832_FC2580,
 726 };
 727 
 728 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
 729         .clk = 28800000,
 730         .tuner = TUNER_RTL2832_FC0012
 731 };
 732 
 733 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
 734         .clk = 28800000,
 735         .tuner = TUNER_RTL2832_FC0013
 736 };
 737 
 738 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
 739         .clk = 28800000,
 740         .tuner = TUNER_RTL2832_TUA9001,
 741 };
 742 
 743 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
 744         .clk = 28800000,
 745         .tuner = TUNER_RTL2832_E4000,
 746 };
 747 
 748 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
 749         .clk = 28800000,
 750         .tuner = TUNER_RTL2832_R820T,
 751 };
 752 
 753 static const struct rtl2832_platform_data rtl2832_si2157_platform_data = {
 754         .clk = 28800000,
 755         .tuner = TUNER_RTL2832_SI2157,
 756 };
 757 
 758 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
 759                 int cmd, int arg)
 760 {
 761         int ret;
 762         u8 val;
 763 
 764         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 765 
 766         switch (cmd) {
 767         case FC_FE_CALLBACK_VHF_ENABLE:
 768                 /* set output values */
 769                 ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
 770                 if (ret)
 771                         goto err;
 772 
 773                 if (arg)
 774                         val &= 0xbf; /* set GPIO6 low */
 775                 else
 776                         val |= 0x40; /* set GPIO6 high */
 777 
 778 
 779                 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
 780                 if (ret)
 781                         goto err;
 782                 break;
 783         default:
 784                 ret = -EINVAL;
 785                 goto err;
 786         }
 787         return 0;
 788 err:
 789         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 790         return ret;
 791 }
 792 
 793 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
 794                 int cmd, int arg)
 795 {
 796         int ret;
 797         u8 val;
 798 
 799         dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
 800 
 801         /*
 802          * CEN     always enabled by hardware wiring
 803          * RESETN  GPIO4
 804          * RXEN    GPIO1
 805          */
 806 
 807         switch (cmd) {
 808         case TUA9001_CMD_RESETN:
 809                 if (arg)
 810                         val = (1 << 4);
 811                 else
 812                         val = (0 << 4);
 813 
 814                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
 815                 if (ret)
 816                         goto err;
 817                 break;
 818         case TUA9001_CMD_RXEN:
 819                 if (arg)
 820                         val = (1 << 1);
 821                 else
 822                         val = (0 << 1);
 823 
 824                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
 825                 if (ret)
 826                         goto err;
 827                 break;
 828         }
 829 
 830         return 0;
 831 err:
 832         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 833         return ret;
 834 }
 835 
 836 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 837                 int cmd, int arg)
 838 {
 839         struct i2c_adapter *adapter = adapter_priv;
 840         struct device *parent = adapter->dev.parent;
 841         struct i2c_adapter *parent_adapter;
 842         struct dvb_usb_device *d;
 843         struct rtl28xxu_dev *dev;
 844 
 845         /*
 846          * All tuners are connected to demod muxed I2C adapter. We have to
 847          * resolve its parent adapter in order to get handle for this driver
 848          * private data. That is a bit hackish solution, GPIO or direct driver
 849          * callback would be better...
 850          */
 851         if (parent != NULL && parent->type == &i2c_adapter_type)
 852                 parent_adapter = to_i2c_adapter(parent);
 853         else
 854                 return -EINVAL;
 855 
 856         d = i2c_get_adapdata(parent_adapter);
 857         dev = d->priv;
 858 
 859         dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
 860                 component, cmd, arg);
 861 
 862         switch (component) {
 863         case DVB_FRONTEND_COMPONENT_TUNER:
 864                 switch (dev->tuner) {
 865                 case TUNER_RTL2832_FC0012:
 866                         return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
 867                 case TUNER_RTL2832_TUA9001:
 868                         return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 869                 }
 870         }
 871 
 872         return 0;
 873 }
 874 
 875 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 876 {
 877         struct dvb_usb_device *d = adap_to_d(adap);
 878         struct rtl28xxu_dev *dev = d_to_priv(d);
 879         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
 880         struct i2c_board_info board_info;
 881         struct i2c_client *client;
 882         int ret;
 883 
 884         dev_dbg(&d->intf->dev, "\n");
 885 
 886         switch (dev->tuner) {
 887         case TUNER_RTL2832_FC0012:
 888                 *pdata = rtl2832_fc0012_platform_data;
 889                 break;
 890         case TUNER_RTL2832_FC0013:
 891                 *pdata = rtl2832_fc0013_platform_data;
 892                 break;
 893         case TUNER_RTL2832_FC2580:
 894                 *pdata = rtl2832_fc2580_platform_data;
 895                 break;
 896         case TUNER_RTL2832_TUA9001:
 897                 *pdata = rtl2832_tua9001_platform_data;
 898                 break;
 899         case TUNER_RTL2832_E4000:
 900                 *pdata = rtl2832_e4000_platform_data;
 901                 break;
 902         case TUNER_RTL2832_R820T:
 903         case TUNER_RTL2832_R828D:
 904                 *pdata = rtl2832_r820t_platform_data;
 905                 break;
 906         case TUNER_RTL2832_SI2157:
 907                 *pdata = rtl2832_si2157_platform_data;
 908                 break;
 909         default:
 910                 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
 911                 ret = -ENODEV;
 912                 goto err;
 913         }
 914 
 915         /* attach demodulator */
 916         memset(&board_info, 0, sizeof(board_info));
 917         strscpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
 918         board_info.addr = 0x10;
 919         board_info.platform_data = pdata;
 920         request_module("%s", board_info.type);
 921         client = i2c_new_device(&d->i2c_adap, &board_info);
 922         if (client == NULL || client->dev.driver == NULL) {
 923                 ret = -ENODEV;
 924                 goto err;
 925         }
 926 
 927         if (!try_module_get(client->dev.driver->owner)) {
 928                 i2c_unregister_device(client);
 929                 ret = -ENODEV;
 930                 goto err;
 931         }
 932 
 933         adap->fe[0] = pdata->get_dvb_frontend(client);
 934         dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
 935 
 936         dev->i2c_client_demod = client;
 937 
 938         /* set fe callback */
 939         adap->fe[0]->callback = rtl2832u_frontend_callback;
 940 
 941         if (dev->slave_demod) {
 942                 struct i2c_board_info info = {};
 943 
 944                 /*
 945                  * We continue on reduced mode, without DVB-T2/C, using master
 946                  * demod, when slave demod fails.
 947                  */
 948                 ret = 0;
 949 
 950                 /* attach slave demodulator */
 951                 if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
 952                         struct mn88472_config mn88472_config = {};
 953 
 954                         mn88472_config.fe = &adap->fe[1];
 955                         mn88472_config.i2c_wr_max = 22,
 956                         strscpy(info.type, "mn88472", I2C_NAME_SIZE);
 957                         mn88472_config.xtal = 20500000;
 958                         mn88472_config.ts_mode = SERIAL_TS_MODE;
 959                         mn88472_config.ts_clock = VARIABLE_TS_CLOCK;
 960                         info.addr = 0x18;
 961                         info.platform_data = &mn88472_config;
 962                         request_module(info.type);
 963                         client = i2c_new_device(&d->i2c_adap, &info);
 964                         if (client == NULL || client->dev.driver == NULL) {
 965                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 966                                 goto err_slave_demod_failed;
 967                         }
 968 
 969                         if (!try_module_get(client->dev.driver->owner)) {
 970                                 i2c_unregister_device(client);
 971                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 972                                 goto err_slave_demod_failed;
 973                         }
 974 
 975                         dev->i2c_client_slave_demod = client;
 976                 } else if (dev->slave_demod == SLAVE_DEMOD_MN88473) {
 977                         struct mn88473_config mn88473_config = {};
 978 
 979                         mn88473_config.fe = &adap->fe[1];
 980                         mn88473_config.i2c_wr_max = 22,
 981                         strscpy(info.type, "mn88473", I2C_NAME_SIZE);
 982                         info.addr = 0x18;
 983                         info.platform_data = &mn88473_config;
 984                         request_module(info.type);
 985                         client = i2c_new_device(&d->i2c_adap, &info);
 986                         if (client == NULL || client->dev.driver == NULL) {
 987                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 988                                 goto err_slave_demod_failed;
 989                         }
 990 
 991                         if (!try_module_get(client->dev.driver->owner)) {
 992                                 i2c_unregister_device(client);
 993                                 dev->slave_demod = SLAVE_DEMOD_NONE;
 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                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1011                                 goto err_slave_demod_failed;
1012                         }
1013                         adap->fe[1]->id = 1;
1014                         dev->i2c_client_slave_demod = NULL;
1015                 } else {
1016                         struct si2168_config si2168_config = {};
1017                         struct i2c_adapter *adapter;
1018 
1019                         si2168_config.i2c_adapter = &adapter;
1020                         si2168_config.fe = &adap->fe[1];
1021                         si2168_config.ts_mode = SI2168_TS_SERIAL;
1022                         si2168_config.ts_clock_inv = false;
1023                         si2168_config.ts_clock_gapped = true;
1024                         strscpy(info.type, "si2168", I2C_NAME_SIZE);
1025                         info.addr = 0x64;
1026                         info.platform_data = &si2168_config;
1027                         request_module(info.type);
1028                         client = i2c_new_device(&d->i2c_adap, &info);
1029                         if (client == NULL || client->dev.driver == NULL) {
1030                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1031                                 goto err_slave_demod_failed;
1032                         }
1033 
1034                         if (!try_module_get(client->dev.driver->owner)) {
1035                                 i2c_unregister_device(client);
1036                                 dev->slave_demod = SLAVE_DEMOD_NONE;
1037                                 goto err_slave_demod_failed;
1038                         }
1039 
1040                         dev->i2c_client_slave_demod = client;
1041 
1042                         /* for Si2168 devices use only new I2C write method */
1043                         dev->new_i2c_write = true;
1044                 }
1045         }
1046         return 0;
1047 err_slave_demod_failed:
1048 err:
1049         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1050         return ret;
1051 }
1052 
1053 static int rtl28xxu_frontend_attach(struct dvb_usb_adapter *adap)
1054 {
1055         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1056 
1057         if (dev->chip_id == CHIP_ID_RTL2831U)
1058                 return rtl2831u_frontend_attach(adap);
1059         else
1060                 return rtl2832u_frontend_attach(adap);
1061 }
1062 
1063 static int rtl28xxu_frontend_detach(struct dvb_usb_adapter *adap)
1064 {
1065         struct dvb_usb_device *d = adap_to_d(adap);
1066         struct rtl28xxu_dev *dev = d_to_priv(d);
1067         struct i2c_client *client;
1068 
1069         dev_dbg(&d->intf->dev, "\n");
1070 
1071         /* remove I2C slave demod */
1072         client = dev->i2c_client_slave_demod;
1073         if (client) {
1074                 module_put(client->dev.driver->owner);
1075                 i2c_unregister_device(client);
1076         }
1077 
1078         /* remove I2C demod */
1079         client = dev->i2c_client_demod;
1080         if (client) {
1081                 module_put(client->dev.driver->owner);
1082                 i2c_unregister_device(client);
1083         }
1084 
1085         return 0;
1086 }
1087 
1088 static struct qt1010_config rtl28xxu_qt1010_config = {
1089         .i2c_address = 0x62, /* 0xc4 */
1090 };
1091 
1092 static struct mt2060_config rtl28xxu_mt2060_config = {
1093         .i2c_address = 0x60, /* 0xc0 */
1094         .clock_out = 0,
1095 };
1096 
1097 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
1098         .i2c_address     = 0x63, /* 0xc6 */
1099         .if_freq         = IF_FREQ_4570000HZ,
1100         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
1101         .agc_mode        = MXL_SINGLE_AGC,
1102         .tracking_filter = MXL_TF_C_H,
1103         .rssi_enable     = MXL_RSSI_ENABLE,
1104         .cap_select      = MXL_CAP_SEL_ENABLE,
1105         .div_out         = MXL_DIV_OUT_4,
1106         .clock_out       = MXL_CLOCK_OUT_DISABLE,
1107         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
1108         .top             = MXL5005S_TOP_25P2,
1109         .mod_mode        = MXL_DIGITAL_MODE,
1110         .if_mode         = MXL_ZERO_IF,
1111         .AgcMasterByte   = 0x00,
1112 };
1113 
1114 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
1115 {
1116         int ret;
1117         struct dvb_usb_device *d = adap_to_d(adap);
1118         struct rtl28xxu_dev *dev = d_to_priv(d);
1119         struct dvb_frontend *fe;
1120 
1121         dev_dbg(&d->intf->dev, "\n");
1122 
1123         switch (dev->tuner) {
1124         case TUNER_RTL2830_QT1010:
1125                 fe = dvb_attach(qt1010_attach, adap->fe[0],
1126                                 dev->demod_i2c_adapter,
1127                                 &rtl28xxu_qt1010_config);
1128                 break;
1129         case TUNER_RTL2830_MT2060:
1130                 fe = dvb_attach(mt2060_attach, adap->fe[0],
1131                                 dev->demod_i2c_adapter,
1132                                 &rtl28xxu_mt2060_config, 1220);
1133                 break;
1134         case TUNER_RTL2830_MXL5005S:
1135                 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
1136                                 dev->demod_i2c_adapter,
1137                                 &rtl28xxu_mxl5005s_config);
1138                 break;
1139         default:
1140                 fe = NULL;
1141                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1142         }
1143 
1144         if (fe == NULL) {
1145                 ret = -ENODEV;
1146                 goto err;
1147         }
1148 
1149         return 0;
1150 err:
1151         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1152         return ret;
1153 }
1154 
1155 static const struct fc0012_config rtl2832u_fc0012_config = {
1156         .i2c_address = 0x63, /* 0xc6 >> 1 */
1157         .xtal_freq = FC_XTAL_28_8_MHZ,
1158 };
1159 
1160 static const struct r820t_config rtl2832u_r820t_config = {
1161         .i2c_addr = 0x1a,
1162         .xtal = 28800000,
1163         .max_i2c_msg_len = 2,
1164         .rafael_chip = CHIP_R820T,
1165 };
1166 
1167 static const struct r820t_config rtl2832u_r828d_config = {
1168         .i2c_addr = 0x3a,
1169         .xtal = 16000000,
1170         .max_i2c_msg_len = 2,
1171         .rafael_chip = CHIP_R828D,
1172 };
1173 
1174 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
1175 {
1176         int ret;
1177         struct dvb_usb_device *d = adap_to_d(adap);
1178         struct rtl28xxu_dev *dev = d_to_priv(d);
1179         struct dvb_frontend *fe = NULL;
1180         struct i2c_board_info info;
1181         struct i2c_client *client;
1182         struct v4l2_subdev *subdev = NULL;
1183         struct platform_device *pdev;
1184         struct rtl2832_sdr_platform_data pdata;
1185 
1186         dev_dbg(&d->intf->dev, "\n");
1187 
1188         memset(&info, 0, sizeof(struct i2c_board_info));
1189         memset(&pdata, 0, sizeof(pdata));
1190 
1191         switch (dev->tuner) {
1192         case TUNER_RTL2832_FC0012:
1193                 fe = dvb_attach(fc0012_attach, adap->fe[0],
1194                         dev->demod_i2c_adapter, &rtl2832u_fc0012_config);
1195 
1196                 /* since fc0012 includs reading the signal strength delegate
1197                  * that to the tuner driver */
1198                 adap->fe[0]->ops.read_signal_strength =
1199                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1200                 break;
1201         case TUNER_RTL2832_FC0013:
1202                 fe = dvb_attach(fc0013_attach, adap->fe[0],
1203                         dev->demod_i2c_adapter, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
1204 
1205                 /* fc0013 also supports signal strength reading */
1206                 adap->fe[0]->ops.read_signal_strength =
1207                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1208                 break;
1209         case TUNER_RTL2832_E4000: {
1210                         struct e4000_config e4000_config = {
1211                                 .fe = adap->fe[0],
1212                                 .clock = 28800000,
1213                         };
1214 
1215                         strscpy(info.type, "e4000", I2C_NAME_SIZE);
1216                         info.addr = 0x64;
1217                         info.platform_data = &e4000_config;
1218 
1219                         request_module(info.type);
1220                         client = i2c_new_device(dev->demod_i2c_adapter, &info);
1221                         if (client == NULL || client->dev.driver == NULL)
1222                                 break;
1223 
1224                         if (!try_module_get(client->dev.driver->owner)) {
1225                                 i2c_unregister_device(client);
1226                                 break;
1227                         }
1228 
1229                         dev->i2c_client_tuner = client;
1230                         subdev = i2c_get_clientdata(client);
1231                 }
1232                 break;
1233         case TUNER_RTL2832_FC2580: {
1234                         struct fc2580_platform_data fc2580_pdata = {
1235                                 .dvb_frontend = adap->fe[0],
1236                         };
1237                         struct i2c_board_info board_info = {};
1238 
1239                         strscpy(board_info.type, "fc2580", I2C_NAME_SIZE);
1240                         board_info.addr = 0x56;
1241                         board_info.platform_data = &fc2580_pdata;
1242                         request_module("fc2580");
1243                         client = i2c_new_device(dev->demod_i2c_adapter,
1244                                                 &board_info);
1245                         if (client == NULL || client->dev.driver == NULL)
1246                                 break;
1247                         if (!try_module_get(client->dev.driver->owner)) {
1248                                 i2c_unregister_device(client);
1249                                 break;
1250                         }
1251                         dev->i2c_client_tuner = client;
1252                         subdev = fc2580_pdata.get_v4l2_subdev(client);
1253                 }
1254                 break;
1255         case TUNER_RTL2832_TUA9001: {
1256                 struct tua9001_platform_data tua9001_pdata = {
1257                         .dvb_frontend = adap->fe[0],
1258                 };
1259                 struct i2c_board_info board_info = {};
1260 
1261                 /* enable GPIO1 and GPIO4 as output */
1262                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1263                 if (ret)
1264                         goto err;
1265 
1266                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1267                 if (ret)
1268                         goto err;
1269 
1270                 strscpy(board_info.type, "tua9001", I2C_NAME_SIZE);
1271                 board_info.addr = 0x60;
1272                 board_info.platform_data = &tua9001_pdata;
1273                 request_module("tua9001");
1274                 client = i2c_new_device(dev->demod_i2c_adapter, &board_info);
1275                 if (client == NULL || client->dev.driver == NULL)
1276                         break;
1277                 if (!try_module_get(client->dev.driver->owner)) {
1278                         i2c_unregister_device(client);
1279                         break;
1280                 }
1281                 dev->i2c_client_tuner = client;
1282                 break;
1283         }
1284         case TUNER_RTL2832_R820T:
1285                 fe = dvb_attach(r820t_attach, adap->fe[0],
1286                                 dev->demod_i2c_adapter,
1287                                 &rtl2832u_r820t_config);
1288 
1289                 /* Use tuner to get the signal strength */
1290                 adap->fe[0]->ops.read_signal_strength =
1291                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1292                 break;
1293         case TUNER_RTL2832_R828D:
1294                 fe = dvb_attach(r820t_attach, adap->fe[0],
1295                                 dev->demod_i2c_adapter,
1296                                 &rtl2832u_r828d_config);
1297                 adap->fe[0]->ops.read_signal_strength =
1298                                 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1299 
1300                 if (adap->fe[1]) {
1301                         fe = dvb_attach(r820t_attach, adap->fe[1],
1302                                         dev->demod_i2c_adapter,
1303                                         &rtl2832u_r828d_config);
1304                         adap->fe[1]->ops.read_signal_strength =
1305                                         adap->fe[1]->ops.tuner_ops.get_rf_strength;
1306                 }
1307                 break;
1308         case TUNER_RTL2832_SI2157: {
1309                         struct si2157_config si2157_config = {
1310                                 .fe = adap->fe[0],
1311                                 .if_port = 0,
1312                                 .inversion = false,
1313                         };
1314 
1315                         strscpy(info.type, "si2157", I2C_NAME_SIZE);
1316                         info.addr = 0x60;
1317                         info.platform_data = &si2157_config;
1318                         request_module(info.type);
1319                         client = i2c_new_device(&d->i2c_adap, &info);
1320                         if (client == NULL || client->dev.driver == NULL)
1321                                 break;
1322 
1323                         if (!try_module_get(client->dev.driver->owner)) {
1324                                 i2c_unregister_device(client);
1325                                 break;
1326                         }
1327 
1328                         dev->i2c_client_tuner = client;
1329                         subdev = i2c_get_clientdata(client);
1330 
1331                         /* copy tuner ops for 2nd FE as tuner is shared */
1332                         if (adap->fe[1]) {
1333                                 adap->fe[1]->tuner_priv =
1334                                                 adap->fe[0]->tuner_priv;
1335                                 memcpy(&adap->fe[1]->ops.tuner_ops,
1336                                                 &adap->fe[0]->ops.tuner_ops,
1337                                                 sizeof(struct dvb_tuner_ops));
1338                         }
1339                 }
1340                 break;
1341         default:
1342                 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1343         }
1344         if (fe == NULL && dev->i2c_client_tuner == NULL) {
1345                 ret = -ENODEV;
1346                 goto err;
1347         }
1348 
1349         /* register SDR */
1350         switch (dev->tuner) {
1351         case TUNER_RTL2832_FC2580:
1352         case TUNER_RTL2832_FC0012:
1353         case TUNER_RTL2832_FC0013:
1354         case TUNER_RTL2832_E4000:
1355         case TUNER_RTL2832_R820T:
1356         case TUNER_RTL2832_R828D:
1357                 pdata.clk = dev->rtl2832_platform_data.clk;
1358                 pdata.tuner = dev->tuner;
1359                 pdata.regmap = dev->rtl2832_platform_data.regmap;
1360                 pdata.dvb_frontend = adap->fe[0];
1361                 pdata.dvb_usb_device = d;
1362                 pdata.v4l2_subdev = subdev;
1363 
1364                 request_module("%s", "rtl2832_sdr");
1365                 pdev = platform_device_register_data(&d->intf->dev,
1366                                                      "rtl2832_sdr",
1367                                                      PLATFORM_DEVID_AUTO,
1368                                                      &pdata, sizeof(pdata));
1369                 if (IS_ERR(pdev) || pdev->dev.driver == NULL)
1370                         break;
1371                 dev->platform_device_sdr = pdev;
1372                 break;
1373         default:
1374                 dev_dbg(&d->intf->dev, "no SDR for tuner=%d\n", dev->tuner);
1375         }
1376 
1377         return 0;
1378 err:
1379         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1380         return ret;
1381 }
1382 
1383 static int rtl28xxu_tuner_attach(struct dvb_usb_adapter *adap)
1384 {
1385         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1386 
1387         if (dev->chip_id == CHIP_ID_RTL2831U)
1388                 return rtl2831u_tuner_attach(adap);
1389         else
1390                 return rtl2832u_tuner_attach(adap);
1391 }
1392 
1393 static int rtl28xxu_tuner_detach(struct dvb_usb_adapter *adap)
1394 {
1395         struct dvb_usb_device *d = adap_to_d(adap);
1396         struct rtl28xxu_dev *dev = d_to_priv(d);
1397         struct i2c_client *client;
1398         struct platform_device *pdev;
1399 
1400         dev_dbg(&d->intf->dev, "\n");
1401 
1402         /* remove platform SDR */
1403         pdev = dev->platform_device_sdr;
1404         if (pdev)
1405                 platform_device_unregister(pdev);
1406 
1407         /* remove I2C tuner */
1408         client = dev->i2c_client_tuner;
1409         if (client) {
1410                 module_put(client->dev.driver->owner);
1411                 i2c_unregister_device(client);
1412         }
1413 
1414         return 0;
1415 }
1416 
1417 static int rtl28xxu_init(struct dvb_usb_device *d)
1418 {
1419         int ret;
1420         u8 val;
1421 
1422         dev_dbg(&d->intf->dev, "\n");
1423 
1424         /* init USB endpoints */
1425         ret = rtl28xxu_rd_reg(d, USB_SYSCTL_0, &val);
1426         if (ret)
1427                 goto err;
1428 
1429         /* enable DMA and Full Packet Mode*/
1430         val |= 0x09;
1431         ret = rtl28xxu_wr_reg(d, USB_SYSCTL_0, val);
1432         if (ret)
1433                 goto err;
1434 
1435         /* set EPA maximum packet size to 0x0200 */
1436         ret = rtl28xxu_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1437         if (ret)
1438                 goto err;
1439 
1440         /* change EPA FIFO length */
1441         ret = rtl28xxu_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1442         if (ret)
1443                 goto err;
1444 
1445         return ret;
1446 err:
1447         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1448         return ret;
1449 }
1450 
1451 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1452 {
1453         int ret;
1454         u8 gpio, sys0, epa_ctl[2];
1455 
1456         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1457 
1458         /* demod adc */
1459         ret = rtl28xxu_rd_reg(d, SYS_SYS0, &sys0);
1460         if (ret)
1461                 goto err;
1462 
1463         /* tuner power, read GPIOs */
1464         ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1465         if (ret)
1466                 goto err;
1467 
1468         dev_dbg(&d->intf->dev, "RD SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1469 
1470         if (onoff) {
1471                 gpio |= 0x01; /* GPIO0 = 1 */
1472                 gpio &= (~0x10); /* GPIO4 = 0 */
1473                 gpio |= 0x04; /* GPIO2 = 1, LED on */
1474                 sys0 = sys0 & 0x0f;
1475                 sys0 |= 0xe0;
1476                 epa_ctl[0] = 0x00; /* clear stall */
1477                 epa_ctl[1] = 0x00; /* clear reset */
1478         } else {
1479                 gpio &= (~0x01); /* GPIO0 = 0 */
1480                 gpio |= 0x10; /* GPIO4 = 1 */
1481                 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1482                 sys0 = sys0 & (~0xc0);
1483                 epa_ctl[0] = 0x10; /* set stall */
1484                 epa_ctl[1] = 0x02; /* set reset */
1485         }
1486 
1487         dev_dbg(&d->intf->dev, "WR SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1488 
1489         /* demod adc */
1490         ret = rtl28xxu_wr_reg(d, SYS_SYS0, sys0);
1491         if (ret)
1492                 goto err;
1493 
1494         /* tuner power, write GPIOs */
1495         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1496         if (ret)
1497                 goto err;
1498 
1499         /* streaming EP: stall & reset */
1500         ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1501         if (ret)
1502                 goto err;
1503 
1504         if (onoff)
1505                 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1506 
1507         return ret;
1508 err:
1509         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1510         return ret;
1511 }
1512 
1513 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1514 {
1515         int ret;
1516 
1517         dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1518 
1519         if (onoff) {
1520                 /* GPIO3=1, GPIO4=0 */
1521                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1522                 if (ret)
1523                         goto err;
1524 
1525                 /* suspend? */
1526                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1527                 if (ret)
1528                         goto err;
1529 
1530                 /* enable PLL */
1531                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1532                 if (ret)
1533                         goto err;
1534 
1535                 /* disable reset */
1536                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1537                 if (ret)
1538                         goto err;
1539 
1540                 /* streaming EP: clear stall & reset */
1541                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1542                 if (ret)
1543                         goto err;
1544 
1545                 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1546                 if (ret)
1547                         goto err;
1548         } else {
1549                 /* GPIO4=1 */
1550                 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1551                 if (ret)
1552                         goto err;
1553 
1554                 /* disable PLL */
1555                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1556                 if (ret)
1557                         goto err;
1558 
1559                 /* streaming EP: set stall & reset */
1560                 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1561                 if (ret)
1562                         goto err;
1563         }
1564 
1565         return ret;
1566 err:
1567         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1568         return ret;
1569 }
1570 
1571 static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
1572 {
1573         struct rtl28xxu_dev *dev = d_to_priv(d);
1574 
1575         if (dev->chip_id == CHIP_ID_RTL2831U)
1576                 return rtl2831u_power_ctrl(d, onoff);
1577         else
1578                 return rtl2832u_power_ctrl(d, onoff);
1579 }
1580 
1581 static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
1582 {
1583         struct dvb_usb_device *d = fe_to_d(fe);
1584         struct rtl28xxu_dev *dev = fe_to_priv(fe);
1585         struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1586         int ret;
1587         u8 val;
1588 
1589         dev_dbg(&d->intf->dev, "fe=%d onoff=%d\n", fe->id, onoff);
1590 
1591         if (dev->chip_id == CHIP_ID_RTL2831U)
1592                 return 0;
1593 
1594         if (fe->id == 0) {
1595                 /* control internal demod ADC */
1596                 if (onoff)
1597                         val = 0x48; /* enable ADC */
1598                 else
1599                         val = 0x00; /* disable ADC */
1600 
1601                 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
1602                 if (ret)
1603                         goto err;
1604         } else if (fe->id == 1) {
1605                 /* bypass slave demod TS through master demod */
1606                 ret = pdata->slave_ts_ctrl(dev->i2c_client_demod, onoff);
1607                 if (ret)
1608                         goto err;
1609         }
1610 
1611         return 0;
1612 err:
1613         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1614         return ret;
1615 }
1616 
1617 #if IS_ENABLED(CONFIG_RC_CORE)
1618 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1619 {
1620         int ret, i;
1621         struct rtl28xxu_dev *dev = d->priv;
1622         u8 buf[5];
1623         u32 rc_code;
1624         static const struct rtl28xxu_reg_val rc_nec_tab[] = {
1625                 { 0x3033, 0x80 },
1626                 { 0x3020, 0x43 },
1627                 { 0x3021, 0x16 },
1628                 { 0x3022, 0x16 },
1629                 { 0x3023, 0x5a },
1630                 { 0x3024, 0x2d },
1631                 { 0x3025, 0x16 },
1632                 { 0x3026, 0x01 },
1633                 { 0x3028, 0xb0 },
1634                 { 0x3029, 0x04 },
1635                 { 0x302c, 0x88 },
1636                 { 0x302e, 0x13 },
1637                 { 0x3030, 0xdf },
1638                 { 0x3031, 0x05 },
1639         };
1640 
1641         /* init remote controller */
1642         if (!dev->rc_active) {
1643                 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1644                         ret = rtl28xxu_wr_reg(d, rc_nec_tab[i].reg,
1645                                         rc_nec_tab[i].val);
1646                         if (ret)
1647                                 goto err;
1648                 }
1649                 dev->rc_active = true;
1650         }
1651 
1652         ret = rtl28xxu_rd_regs(d, SYS_IRRC_RP, buf, 5);
1653         if (ret)
1654                 goto err;
1655 
1656         if (buf[4] & 0x01) {
1657                 enum rc_proto proto;
1658 
1659                 if (buf[2] == (u8) ~buf[3]) {
1660                         if (buf[0] == (u8) ~buf[1]) {
1661                                 /* NEC standard (16 bit) */
1662                                 rc_code = RC_SCANCODE_NEC(buf[0], buf[2]);
1663                                 proto = RC_PROTO_NEC;
1664                         } else {
1665                                 /* NEC extended (24 bit) */
1666                                 rc_code = RC_SCANCODE_NECX(buf[0] << 8 | buf[1],
1667                                                            buf[2]);
1668                                 proto = RC_PROTO_NECX;
1669                         }
1670                 } else {
1671                         /* NEC full (32 bit) */
1672                         rc_code = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1673                                                     buf[2] << 8  | buf[3]);
1674                         proto = RC_PROTO_NEC32;
1675                 }
1676 
1677                 rc_keydown(d->rc_dev, proto, rc_code, 0);
1678 
1679                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1680                 if (ret)
1681                         goto err;
1682 
1683                 /* repeated intentionally to avoid extra keypress */
1684                 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1685                 if (ret)
1686                         goto err;
1687         }
1688 
1689         return ret;
1690 err:
1691         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1692         return ret;
1693 }
1694 
1695 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1696                 struct dvb_usb_rc *rc)
1697 {
1698         rc->map_name = RC_MAP_EMPTY;
1699         rc->allowed_protos = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
1700                                                         RC_PROTO_BIT_NEC32;
1701         rc->query = rtl2831u_rc_query;
1702         rc->interval = 400;
1703 
1704         return 0;
1705 }
1706 
1707 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1708 {
1709         int ret, i, len;
1710         struct rtl28xxu_dev *dev = d->priv;
1711         struct ir_raw_event ev = {};
1712         u8 buf[128];
1713         static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1714                 {IR_RX_IF,               0x03, 0xff},
1715                 {IR_RX_BUF_CTRL,         0x80, 0xff},
1716                 {IR_RX_CTRL,             0x80, 0xff},
1717         };
1718 
1719         /* init remote controller */
1720         if (!dev->rc_active) {
1721                 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1722                         {SYS_DEMOD_CTL1,         0x00, 0x04},
1723                         {SYS_DEMOD_CTL1,         0x00, 0x08},
1724                         {USB_CTRL,               0x20, 0x20},
1725                         {SYS_GPIO_DIR,           0x00, 0x08},
1726                         {SYS_GPIO_OUT_EN,        0x08, 0x08},
1727                         {SYS_GPIO_OUT_VAL,       0x08, 0x08},
1728                         {IR_MAX_DURATION0,       0xd0, 0xff},
1729                         {IR_MAX_DURATION1,       0x07, 0xff},
1730                         {IR_IDLE_LEN0,           0xc0, 0xff},
1731                         {IR_IDLE_LEN1,           0x00, 0xff},
1732                         {IR_GLITCH_LEN,          0x03, 0xff},
1733                         {IR_RX_CLK,              0x09, 0xff},
1734                         {IR_RX_CFG,              0x1c, 0xff},
1735                         {IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1736                         {IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1737                         {IR_RX_CTRL,             0x80, 0xff},
1738                 };
1739 
1740                 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1741                         ret = rtl28xxu_wr_reg_mask(d, init_tab[i].reg,
1742                                         init_tab[i].val, init_tab[i].mask);
1743                         if (ret)
1744                                 goto err;
1745                 }
1746 
1747                 dev->rc_active = true;
1748         }
1749 
1750         ret = rtl28xxu_rd_reg(d, IR_RX_IF, &buf[0]);
1751         if (ret)
1752                 goto err;
1753 
1754         if (buf[0] != 0x83)
1755                 goto exit;
1756 
1757         ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
1758         if (ret || buf[0] > sizeof(buf))
1759                 goto err;
1760 
1761         len = buf[0];
1762 
1763         /* read raw code from hw */
1764         ret = rtl28xxu_rd_regs(d, IR_RX_BUF, buf, len);
1765         if (ret)
1766                 goto err;
1767 
1768         /* let hw receive new code */
1769         for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1770                 ret = rtl28xxu_wr_reg_mask(d, refresh_tab[i].reg,
1771                                 refresh_tab[i].val, refresh_tab[i].mask);
1772                 if (ret)
1773                         goto err;
1774         }
1775 
1776         /* pass data to Kernel IR decoder */
1777         for (i = 0; i < len; i++) {
1778                 ev.pulse = buf[i] >> 7;
1779                 ev.duration = 50800 * (buf[i] & 0x7f);
1780                 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1781         }
1782 
1783         /* 'flush' ir_raw_event_store_with_filter() */
1784         ir_raw_event_set_idle(d->rc_dev, true);
1785         ir_raw_event_handle(d->rc_dev);
1786 exit:
1787         return ret;
1788 err:
1789         dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1790         return ret;
1791 }
1792 
1793 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1794                 struct dvb_usb_rc *rc)
1795 {
1796         /* disable IR interrupts in order to avoid SDR sample loss */
1797         if (rtl28xxu_disable_rc)
1798                 return rtl28xxu_wr_reg(d, IR_RX_IE, 0x00);
1799 
1800         /* load empty to enable rc */
1801         if (!rc->map_name)
1802                 rc->map_name = RC_MAP_EMPTY;
1803         rc->allowed_protos = RC_PROTO_BIT_ALL_IR_DECODER;
1804         rc->driver_type = RC_DRIVER_IR_RAW;
1805         rc->query = rtl2832u_rc_query;
1806         rc->interval = 200;
1807 
1808         return 0;
1809 }
1810 
1811 static int rtl28xxu_get_rc_config(struct dvb_usb_device *d,
1812                 struct dvb_usb_rc *rc)
1813 {
1814         struct rtl28xxu_dev *dev = d_to_priv(d);
1815 
1816         if (dev->chip_id == CHIP_ID_RTL2831U)
1817                 return rtl2831u_get_rc_config(d, rc);
1818         else
1819                 return rtl2832u_get_rc_config(d, rc);
1820 }
1821 #else
1822 #define rtl28xxu_get_rc_config NULL
1823 #endif
1824 
1825 static int rtl28xxu_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1826 {
1827         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1828 
1829         if (dev->chip_id == CHIP_ID_RTL2831U) {
1830                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1831 
1832                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1833         } else {
1834                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1835 
1836                 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1837         }
1838 }
1839 
1840 static int rtl28xxu_pid_filter(struct dvb_usb_adapter *adap, int index,
1841                                u16 pid, int onoff)
1842 {
1843         struct rtl28xxu_dev *dev = adap_to_priv(adap);
1844 
1845         if (dev->chip_id == CHIP_ID_RTL2831U) {
1846                 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1847 
1848                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1849         } else {
1850                 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1851 
1852                 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1853         }
1854 }
1855 
1856 static const struct dvb_usb_device_properties rtl28xxu_props = {
1857         .driver_name = KBUILD_MODNAME,
1858         .owner = THIS_MODULE,
1859         .adapter_nr = adapter_nr,
1860         .size_of_priv = sizeof(struct rtl28xxu_dev),
1861 
1862         .identify_state = rtl28xxu_identify_state,
1863         .power_ctrl = rtl28xxu_power_ctrl,
1864         .frontend_ctrl = rtl28xxu_frontend_ctrl,
1865         .i2c_algo = &rtl28xxu_i2c_algo,
1866         .read_config = rtl28xxu_read_config,
1867         .frontend_attach = rtl28xxu_frontend_attach,
1868         .frontend_detach = rtl28xxu_frontend_detach,
1869         .tuner_attach = rtl28xxu_tuner_attach,
1870         .tuner_detach = rtl28xxu_tuner_detach,
1871         .init = rtl28xxu_init,
1872         .get_rc_config = rtl28xxu_get_rc_config,
1873 
1874         .num_adapters = 1,
1875         .adapter = {
1876                 {
1877                         .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1878                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1879 
1880                         .pid_filter_count = 32,
1881                         .pid_filter_ctrl = rtl28xxu_pid_filter_ctrl,
1882                         .pid_filter = rtl28xxu_pid_filter,
1883 
1884                         .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1885                 },
1886         },
1887 };
1888 
1889 static const struct usb_device_id rtl28xxu_id_table[] = {
1890         /* RTL2831U devices: */
1891         { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1892                 &rtl28xxu_props, "Realtek RTL2831U reference design", NULL) },
1893         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1894                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1895         { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1896                 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1897 
1898         /* RTL2832U devices: */
1899         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1900                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1901         { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1902                 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1903         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1904                 &rtl28xxu_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1905         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1906                 &rtl28xxu_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1907         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1908                 &rtl28xxu_props, "TerraTec NOXON DAB Stick", NULL) },
1909         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1910                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1911         { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1912                 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1913         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1914                 &rtl28xxu_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1915         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1916                 &rtl28xxu_props, "Dexatek DK DVB-T Dongle", NULL) },
1917         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1918                 &rtl28xxu_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1919         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1920                 &rtl28xxu_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1921         { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV2000DS_PLUS,
1922                 &rtl28xxu_props, "Leadtek WinFast DTV2000DS Plus", RC_MAP_LEADTEK_Y04G0051) },
1923         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1924                 &rtl28xxu_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1925         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1926                 &rtl28xxu_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1927         { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1928                 &rtl28xxu_props, "TerraTec Cinergy T Stick+", NULL) },
1929         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1930                 &rtl28xxu_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1931         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1932                 &rtl28xxu_props, "GIGABYTE U7300", NULL) },
1933         { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1934                 &rtl28xxu_props, "MSI DIGIVOX Micro HD", NULL) },
1935         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1936                 &rtl28xxu_props, "Compro VideoMate U620F", NULL) },
1937         { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0650,
1938                 &rtl28xxu_props, "Compro VideoMate U650F", NULL) },
1939         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1940                 &rtl28xxu_props, "MaxMedia HU394-T", NULL) },
1941         { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1942                 &rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1943         { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1944                 &rtl28xxu_props, "Crypto ReDi PC 50 A", NULL) },
1945         { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1946                 &rtl28xxu_props, "Genius TVGo DVB-T03", NULL) },
1947         { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
1948                 &rtl28xxu_props, "Peak DVB-T USB", NULL) },
1949         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
1950                 &rtl28xxu_props, "Sveon STV20", NULL) },
1951         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV21,
1952                 &rtl28xxu_props, "Sveon STV21", NULL) },
1953         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
1954                 &rtl28xxu_props, "Sveon STV27", NULL) },
1955         { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_TURBOX_DTT_2000,
1956                 &rtl28xxu_props, "TURBO-X Pure TV Tuner DTT-2000", NULL) },
1957 
1958         /* RTL2832P devices: */
1959         { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1960                 &rtl28xxu_props, "Astrometa DVB-T2", NULL) },
1961         { DVB_USB_DEVICE(0x5654, 0xca42,
1962                 &rtl28xxu_props, "GoTView MasterHD 3", NULL) },
1963         { }
1964 };
1965 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1966 
1967 static struct usb_driver rtl28xxu_usb_driver = {
1968         .name = KBUILD_MODNAME,
1969         .id_table = rtl28xxu_id_table,
1970         .probe = dvb_usbv2_probe,
1971         .disconnect = dvb_usbv2_disconnect,
1972         .suspend = dvb_usbv2_suspend,
1973         .resume = dvb_usbv2_resume,
1974         .reset_resume = dvb_usbv2_reset_resume,
1975         .no_dynamic_id = 1,
1976         .soft_unbind = 1,
1977 };
1978 
1979 module_usb_driver(rtl28xxu_usb_driver);
1980 
1981 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1982 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1983 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1984 MODULE_LICENSE("GPL");
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/media/usb/dvb-usb-v2/rtl28xxu.c

DEFINITIONS
