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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Realtek RTL28xxU DVB USB driver
0004  *
0005  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
0006  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
0007  * Copyright (C) 2012 Thomas Mair <thomas.mair86@googlemail.com>
0008  */
0009 
0010 #include "rtl28xxu.h"
0011 
0012 static int rtl28xxu_disable_rc;
0013 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
0014 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
0015 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
0016 
0017 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
0018 {
0019     struct rtl28xxu_dev *dev = d->priv;
0020     int ret;
0021     unsigned int pipe;
0022     u8 requesttype;
0023 
0024     mutex_lock(&d->usb_mutex);
0025 
0026     if (req->size > sizeof(dev->buf)) {
0027         dev_err(&d->intf->dev, "too large message %u\n", req->size);
0028         ret = -EINVAL;
0029         goto err_mutex_unlock;
0030     }
0031 
0032     if (req->index & CMD_WR_FLAG) {
0033         /* write */
0034         memcpy(dev->buf, req->data, req->size);
0035         requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
0036         pipe = usb_sndctrlpipe(d->udev, 0);
0037     } else {
0038         /* read */
0039         requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
0040 
0041         /*
0042          * Zero-length transfers must use usb_sndctrlpipe() and
0043          * rtl28xxu_identify_state() uses a zero-length i2c read
0044          * command to determine the chip type.
0045          */
0046         if (req->size)
0047             pipe = usb_rcvctrlpipe(d->udev, 0);
0048         else
0049             pipe = usb_sndctrlpipe(d->udev, 0);
0050     }
0051 
0052     ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
0053             req->index, dev->buf, req->size, 1000);
0054     dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
0055             req->index, dev->buf, req->size);
0056     if (ret < 0)
0057         goto err_mutex_unlock;
0058 
0059     /* read request, copy returned data to return buf */
0060     if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
0061         memcpy(req->data, dev->buf, req->size);
0062 
0063     mutex_unlock(&d->usb_mutex);
0064 
0065     return 0;
0066 err_mutex_unlock:
0067     mutex_unlock(&d->usb_mutex);
0068     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0069     return ret;
0070 }
0071 
0072 static int rtl28xxu_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
0073 {
0074     struct rtl28xxu_req req;
0075 
0076     if (reg < 0x3000)
0077         req.index = CMD_USB_WR;
0078     else if (reg < 0x4000)
0079         req.index = CMD_SYS_WR;
0080     else
0081         req.index = CMD_IR_WR;
0082 
0083     req.value = reg;
0084     req.size = len;
0085     req.data = val;
0086 
0087     return rtl28xxu_ctrl_msg(d, &req);
0088 }
0089 
0090 static int rtl28xxu_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
0091 {
0092     struct rtl28xxu_req req;
0093 
0094     if (reg < 0x3000)
0095         req.index = CMD_USB_RD;
0096     else if (reg < 0x4000)
0097         req.index = CMD_SYS_RD;
0098     else
0099         req.index = CMD_IR_RD;
0100 
0101     req.value = reg;
0102     req.size = len;
0103     req.data = val;
0104 
0105     return rtl28xxu_ctrl_msg(d, &req);
0106 }
0107 
0108 static int rtl28xxu_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
0109 {
0110     return rtl28xxu_wr_regs(d, reg, &val, 1);
0111 }
0112 
0113 static int rtl28xxu_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
0114 {
0115     return rtl28xxu_rd_regs(d, reg, val, 1);
0116 }
0117 
0118 static int rtl28xxu_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
0119         u8 mask)
0120 {
0121     int ret;
0122     u8 tmp;
0123 
0124     /* no need for read if whole reg is written */
0125     if (mask != 0xff) {
0126         ret = rtl28xxu_rd_reg(d, reg, &tmp);
0127         if (ret)
0128             return ret;
0129 
0130         val &= mask;
0131         tmp &= ~mask;
0132         val |= tmp;
0133     }
0134 
0135     return rtl28xxu_wr_reg(d, reg, val);
0136 }
0137 
0138 /* I2C */
0139 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
0140     int num)
0141 {
0142     int ret;
0143     struct dvb_usb_device *d = i2c_get_adapdata(adap);
0144     struct rtl28xxu_dev *dev = d->priv;
0145     struct rtl28xxu_req req;
0146 
0147     /*
0148      * It is not known which are real I2C bus xfer limits, but testing
0149      * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
0150      * TODO: find out RTL2832U lens
0151      */
0152 
0153     /*
0154      * I2C adapter logic looks rather complicated due to fact it handles
0155      * three different access methods. Those methods are;
0156      * 1) integrated demod access
0157      * 2) old I2C access
0158      * 3) new I2C access
0159      *
0160      * Used method is selected in order 1, 2, 3. Method 3 can handle all
0161      * requests but there is two reasons why not use it always;
0162      * 1) It is most expensive, usually two USB messages are needed
0163      * 2) At least RTL2831U does not support it
0164      *
0165      * Method 3 is needed in case of I2C write+read (typical register read)
0166      * where write is more than one byte.
0167      */
0168 
0169     if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
0170         return -EAGAIN;
0171 
0172     if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
0173         (msg[1].flags & I2C_M_RD)) {
0174         if (msg[0].len > 24 || msg[1].len > 24) {
0175             /* TODO: check msg[0].len max */
0176             ret = -EOPNOTSUPP;
0177             goto err_mutex_unlock;
0178         } else if (msg[0].addr == 0x10) {
0179             /* method 1 - integrated demod */
0180             if (msg[0].buf[0] == 0x00) {
0181                 /* return demod page from driver cache */
0182                 msg[1].buf[0] = dev->page;
0183                 ret = 0;
0184             } else {
0185                 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
0186                 req.index = CMD_DEMOD_RD | dev->page;
0187                 req.size = msg[1].len;
0188                 req.data = &msg[1].buf[0];
0189                 ret = rtl28xxu_ctrl_msg(d, &req);
0190             }
0191         } else if (msg[0].len < 2) {
0192             /* method 2 - old I2C */
0193             req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
0194             req.index = CMD_I2C_RD;
0195             req.size = msg[1].len;
0196             req.data = &msg[1].buf[0];
0197             ret = rtl28xxu_ctrl_msg(d, &req);
0198         } else {
0199             /* method 3 - new I2C */
0200             req.value = (msg[0].addr << 1);
0201             req.index = CMD_I2C_DA_WR;
0202             req.size = msg[0].len;
0203             req.data = msg[0].buf;
0204             ret = rtl28xxu_ctrl_msg(d, &req);
0205             if (ret)
0206                 goto err_mutex_unlock;
0207 
0208             req.value = (msg[0].addr << 1);
0209             req.index = CMD_I2C_DA_RD;
0210             req.size = msg[1].len;
0211             req.data = msg[1].buf;
0212             ret = rtl28xxu_ctrl_msg(d, &req);
0213         }
0214     } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
0215         if (msg[0].len > 22) {
0216             /* TODO: check msg[0].len max */
0217             ret = -EOPNOTSUPP;
0218             goto err_mutex_unlock;
0219         } else if (msg[0].addr == 0x10) {
0220             /* method 1 - integrated demod */
0221             if (msg[0].buf[0] == 0x00) {
0222                 /* save demod page for later demod access */
0223                 dev->page = msg[0].buf[1];
0224                 ret = 0;
0225             } else {
0226                 req.value = (msg[0].buf[0] << 8) |
0227                     (msg[0].addr << 1);
0228                 req.index = CMD_DEMOD_WR | dev->page;
0229                 req.size = msg[0].len-1;
0230                 req.data = &msg[0].buf[1];
0231                 ret = rtl28xxu_ctrl_msg(d, &req);
0232             }
0233         } else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
0234             /* method 2 - old I2C */
0235             req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
0236             req.index = CMD_I2C_WR;
0237             req.size = msg[0].len-1;
0238             req.data = &msg[0].buf[1];
0239             ret = rtl28xxu_ctrl_msg(d, &req);
0240         } else {
0241             /* method 3 - new I2C */
0242             req.value = (msg[0].addr << 1);
0243             req.index = CMD_I2C_DA_WR;
0244             req.size = msg[0].len;
0245             req.data = msg[0].buf;
0246             ret = rtl28xxu_ctrl_msg(d, &req);
0247         }
0248     } else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
0249         req.value = (msg[0].addr << 1);
0250         req.index = CMD_I2C_DA_RD;
0251         req.size = msg[0].len;
0252         req.data = msg[0].buf;
0253         ret = rtl28xxu_ctrl_msg(d, &req);
0254     } else {
0255         ret = -EOPNOTSUPP;
0256     }
0257 
0258     /* Retry failed I2C messages */
0259     if (ret == -EPIPE)
0260         ret = -EAGAIN;
0261 
0262 err_mutex_unlock:
0263     mutex_unlock(&d->i2c_mutex);
0264 
0265     return ret ? ret : num;
0266 }
0267 
0268 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
0269 {
0270     return I2C_FUNC_I2C;
0271 }
0272 
0273 static struct i2c_algorithm rtl28xxu_i2c_algo = {
0274     .master_xfer   = rtl28xxu_i2c_xfer,
0275     .functionality = rtl28xxu_i2c_func,
0276 };
0277 
0278 static int rtl2831u_read_config(struct dvb_usb_device *d)
0279 {
0280     struct rtl28xxu_dev *dev = d_to_priv(d);
0281     int ret;
0282     u8 buf[1];
0283     /* open RTL2831U/RTL2830 I2C gate */
0284     struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
0285     /* tuner probes */
0286     struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
0287     struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
0288 
0289     dev_dbg(&d->intf->dev, "\n");
0290 
0291     /*
0292      * RTL2831U GPIOs
0293      * =========================================================
0294      * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
0295      * GPIO2 | LED     | 0 off | 1 on  |
0296      * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
0297      */
0298 
0299     /* GPIO direction */
0300     ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
0301     if (ret)
0302         goto err;
0303 
0304     /* enable as output GPIO0, GPIO2, GPIO4 */
0305     ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
0306     if (ret)
0307         goto err;
0308 
0309     /*
0310      * Probe used tuner. We need to know used tuner before demod attach
0311      * since there is some demod params needed to set according to tuner.
0312      */
0313 
0314     /* demod needs some time to wake up */
0315     msleep(20);
0316 
0317     dev->tuner_name = "NONE";
0318 
0319     /* open demod I2C gate */
0320     ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
0321     if (ret)
0322         goto err;
0323 
0324     /* check QT1010 ID(?) register; reg=0f val=2c */
0325     ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
0326     if (ret == 0 && buf[0] == 0x2c) {
0327         dev->tuner = TUNER_RTL2830_QT1010;
0328         dev->tuner_name = "QT1010";
0329         goto found;
0330     }
0331 
0332     /* open demod I2C gate */
0333     ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
0334     if (ret)
0335         goto err;
0336 
0337     /* check MT2060 ID register; reg=00 val=63 */
0338     ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
0339     if (ret == 0 && buf[0] == 0x63) {
0340         dev->tuner = TUNER_RTL2830_MT2060;
0341         dev->tuner_name = "MT2060";
0342         goto found;
0343     }
0344 
0345     /* assume MXL5005S */
0346     dev->tuner = TUNER_RTL2830_MXL5005S;
0347     dev->tuner_name = "MXL5005S";
0348     goto found;
0349 
0350 found:
0351     dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
0352 
0353     return 0;
0354 err:
0355     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0356     return ret;
0357 }
0358 
0359 static int rtl2832u_read_config(struct dvb_usb_device *d)
0360 {
0361     struct rtl28xxu_dev *dev = d_to_priv(d);
0362     int ret;
0363     u8 buf[2];
0364     /* open RTL2832U/RTL2832 I2C gate */
0365     struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
0366     /* close RTL2832U/RTL2832 I2C gate */
0367     struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
0368     /* tuner probes */
0369     struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
0370     struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
0371     struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
0372     struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
0373     struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
0374     struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
0375     struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
0376     struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
0377     struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
0378     struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
0379     struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
0380     struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
0381     struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
0382     struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
0383     struct rtl28xxu_req req_cxd2837er = {0xfdd8, CMD_I2C_RD, 1, buf};
0384     struct rtl28xxu_req req_si2157 = {0x00c0, CMD_I2C_RD, 1, buf};
0385     struct rtl28xxu_req req_si2168 = {0x00c8, CMD_I2C_RD, 1, buf};
0386 
0387     dev_dbg(&d->intf->dev, "\n");
0388 
0389     /* enable GPIO3 and GPIO6 as output */
0390     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
0391     if (ret)
0392         goto err;
0393 
0394     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
0395     if (ret)
0396         goto err;
0397 
0398     /*
0399      * Probe used tuner. We need to know used tuner before demod attach
0400      * since there is some demod params needed to set according to tuner.
0401      */
0402 
0403     /* open demod I2C gate */
0404     ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
0405     if (ret)
0406         goto err;
0407 
0408     dev->tuner_name = "NONE";
0409 
0410     /* check FC0012 ID register; reg=00 val=a1 */
0411     ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
0412     if (ret == 0 && buf[0] == 0xa1) {
0413         dev->tuner = TUNER_RTL2832_FC0012;
0414         dev->tuner_name = "FC0012";
0415         goto tuner_found;
0416     }
0417 
0418     /* check FC0013 ID register; reg=00 val=a3 */
0419     ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
0420     if (ret == 0 && buf[0] == 0xa3) {
0421         dev->tuner = TUNER_RTL2832_FC0013;
0422         dev->tuner_name = "FC0013";
0423         goto tuner_found;
0424     }
0425 
0426     /* check MT2266 ID register; reg=00 val=85 */
0427     ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
0428     if (ret == 0 && buf[0] == 0x85) {
0429         dev->tuner = TUNER_RTL2832_MT2266;
0430         dev->tuner_name = "MT2266";
0431         goto tuner_found;
0432     }
0433 
0434     /* check FC2580 ID register; reg=01 val=56 */
0435     ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
0436     if (ret == 0 && buf[0] == 0x56) {
0437         dev->tuner = TUNER_RTL2832_FC2580;
0438         dev->tuner_name = "FC2580";
0439         goto tuner_found;
0440     }
0441 
0442     /* check MT2063 ID register; reg=00 val=9e || 9c */
0443     ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
0444     if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
0445         dev->tuner = TUNER_RTL2832_MT2063;
0446         dev->tuner_name = "MT2063";
0447         goto tuner_found;
0448     }
0449 
0450     /* check MAX3543 ID register; reg=00 val=38 */
0451     ret = rtl28xxu_ctrl_msg(d, &req_max3543);
0452     if (ret == 0 && buf[0] == 0x38) {
0453         dev->tuner = TUNER_RTL2832_MAX3543;
0454         dev->tuner_name = "MAX3543";
0455         goto tuner_found;
0456     }
0457 
0458     /* check TUA9001 ID register; reg=7e val=2328 */
0459     ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
0460     if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
0461         dev->tuner = TUNER_RTL2832_TUA9001;
0462         dev->tuner_name = "TUA9001";
0463         goto tuner_found;
0464     }
0465 
0466     /* check MXL5007R ID register; reg=d9 val=14 */
0467     ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
0468     if (ret == 0 && buf[0] == 0x14) {
0469         dev->tuner = TUNER_RTL2832_MXL5007T;
0470         dev->tuner_name = "MXL5007T";
0471         goto tuner_found;
0472     }
0473 
0474     /* check E4000 ID register; reg=02 val=40 */
0475     ret = rtl28xxu_ctrl_msg(d, &req_e4000);
0476     if (ret == 0 && buf[0] == 0x40) {
0477         dev->tuner = TUNER_RTL2832_E4000;
0478         dev->tuner_name = "E4000";
0479         goto tuner_found;
0480     }
0481 
0482     /* check TDA18272 ID register; reg=00 val=c760  */
0483     ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
0484     if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
0485         dev->tuner = TUNER_RTL2832_TDA18272;
0486         dev->tuner_name = "TDA18272";
0487         goto tuner_found;
0488     }
0489 
0490     /* check R820T ID register; reg=00 val=69 */
0491     ret = rtl28xxu_ctrl_msg(d, &req_r820t);
0492     if (ret == 0 && buf[0] == 0x69) {
0493         dev->tuner = TUNER_RTL2832_R820T;
0494         dev->tuner_name = "R820T";
0495         goto tuner_found;
0496     }
0497 
0498     /* check R828D ID register; reg=00 val=69 */
0499     ret = rtl28xxu_ctrl_msg(d, &req_r828d);
0500     if (ret == 0 && buf[0] == 0x69) {
0501         dev->tuner = TUNER_RTL2832_R828D;
0502         dev->tuner_name = "R828D";
0503         goto tuner_found;
0504     }
0505 
0506     /* GPIO0 and GPIO5 to reset Si2157/Si2168 tuner and demod */
0507     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x21);
0508     if (ret)
0509         goto err;
0510 
0511     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x21);
0512     if (ret)
0513         goto err;
0514 
0515     msleep(50);
0516 
0517     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x21, 0x21);
0518     if (ret)
0519         goto err;
0520 
0521     ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x21, 0x21);
0522     if (ret)
0523         goto err;
0524 
0525     msleep(50);
0526 
0527     /* check Si2157 ID register; reg=c0 val=80 */
0528     ret = rtl28xxu_ctrl_msg(d, &req_si2157);
0529     if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
0530         dev->tuner = TUNER_RTL2832_SI2157;
0531         dev->tuner_name = "SI2157";
0532         goto tuner_found;
0533     }
0534 
0535 tuner_found:
0536     dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
0537 
0538     /* probe slave demod */
0539     if (dev->tuner == TUNER_RTL2832_R828D) {
0540         /* power off slave demod on GPIO0 to reset CXD2837ER */
0541         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
0542         if (ret)
0543             goto err;
0544 
0545         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x01);
0546         if (ret)
0547             goto err;
0548 
0549         msleep(50);
0550 
0551         /* power on slave demod on GPIO0 */
0552         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
0553         if (ret)
0554             goto err;
0555 
0556         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
0557         if (ret)
0558             goto err;
0559 
0560         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
0561         if (ret)
0562             goto err;
0563 
0564         /* slave demod needs some time to wake up */
0565         msleep(20);
0566 
0567         /* check slave answers */
0568         ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
0569         if (ret == 0 && buf[0] == 0x02) {
0570             dev_dbg(&d->intf->dev, "MN88472 found\n");
0571             dev->slave_demod = SLAVE_DEMOD_MN88472;
0572             goto demod_found;
0573         }
0574 
0575         ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
0576         if (ret == 0 && buf[0] == 0x03) {
0577             dev_dbg(&d->intf->dev, "MN88473 found\n");
0578             dev->slave_demod = SLAVE_DEMOD_MN88473;
0579             goto demod_found;
0580         }
0581 
0582         ret = rtl28xxu_ctrl_msg(d, &req_cxd2837er);
0583         if (ret == 0 && buf[0] == 0xb1) {
0584             dev_dbg(&d->intf->dev, "CXD2837ER found\n");
0585             dev->slave_demod = SLAVE_DEMOD_CXD2837ER;
0586             goto demod_found;
0587         }
0588     }
0589     if (dev->tuner == TUNER_RTL2832_SI2157) {
0590         /* check Si2168 ID register; reg=c8 val=80 */
0591         ret = rtl28xxu_ctrl_msg(d, &req_si2168);
0592         if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
0593             dev_dbg(&d->intf->dev, "Si2168 found\n");
0594             dev->slave_demod = SLAVE_DEMOD_SI2168;
0595             goto demod_found;
0596         }
0597     }
0598 
0599 demod_found:
0600     /* close demod I2C gate */
0601     ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
0602     if (ret < 0)
0603         goto err;
0604 
0605     return 0;
0606 err:
0607     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0608     return ret;
0609 }
0610 
0611 static int rtl28xxu_read_config(struct dvb_usb_device *d)
0612 {
0613     struct rtl28xxu_dev *dev = d_to_priv(d);
0614 
0615     if (dev->chip_id == CHIP_ID_RTL2831U)
0616         return rtl2831u_read_config(d);
0617     else
0618         return rtl2832u_read_config(d);
0619 }
0620 
0621 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
0622 {
0623     struct rtl28xxu_dev *dev = d_to_priv(d);
0624     int ret;
0625     struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
0626 
0627     dev_dbg(&d->intf->dev, "\n");
0628 
0629     /*
0630      * Detect chip type using I2C command that is not supported
0631      * by old RTL2831U.
0632      */
0633     ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
0634     if (ret == -EPIPE) {
0635         dev->chip_id = CHIP_ID_RTL2831U;
0636     } else if (ret == 0) {
0637         dev->chip_id = CHIP_ID_RTL2832U;
0638     } else {
0639         dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
0640         goto err;
0641     }
0642     dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
0643 
0644     /* Retry failed I2C messages */
0645     d->i2c_adap.retries = 3;
0646     d->i2c_adap.timeout = msecs_to_jiffies(10);
0647 
0648     return WARM;
0649 err:
0650     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0651     return ret;
0652 }
0653 
0654 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
0655     .clk = 28800000,
0656     .spec_inv = 1,
0657     .vtop = 0x20,
0658     .krf = 0x04,
0659     .agc_targ_val = 0x2d,
0660 
0661 };
0662 
0663 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
0664     .clk = 28800000,
0665     .spec_inv = 1,
0666     .vtop = 0x20,
0667     .krf = 0x04,
0668     .agc_targ_val = 0x2d,
0669 };
0670 
0671 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
0672     .clk = 28800000,
0673     .spec_inv = 0,
0674     .vtop = 0x3f,
0675     .krf = 0x04,
0676     .agc_targ_val = 0x3e,
0677 };
0678 
0679 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
0680 {
0681     struct dvb_usb_device *d = adap_to_d(adap);
0682     struct rtl28xxu_dev *dev = d_to_priv(d);
0683     struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
0684     struct i2c_board_info board_info;
0685     struct i2c_client *client;
0686     int ret;
0687 
0688     dev_dbg(&d->intf->dev, "\n");
0689 
0690     switch (dev->tuner) {
0691     case TUNER_RTL2830_QT1010:
0692         *pdata = rtl2830_qt1010_platform_data;
0693         break;
0694     case TUNER_RTL2830_MT2060:
0695         *pdata = rtl2830_mt2060_platform_data;
0696         break;
0697     case TUNER_RTL2830_MXL5005S:
0698         *pdata = rtl2830_mxl5005s_platform_data;
0699         break;
0700     default:
0701         dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
0702         ret = -ENODEV;
0703         goto err;
0704     }
0705 
0706     /* attach demodulator */
0707     memset(&board_info, 0, sizeof(board_info));
0708     strscpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
0709     board_info.addr = 0x10;
0710     board_info.platform_data = pdata;
0711     request_module("%s", board_info.type);
0712     client = i2c_new_client_device(&d->i2c_adap, &board_info);
0713     if (!i2c_client_has_driver(client)) {
0714         ret = -ENODEV;
0715         goto err;
0716     }
0717 
0718     if (!try_module_get(client->dev.driver->owner)) {
0719         i2c_unregister_device(client);
0720         ret = -ENODEV;
0721         goto err;
0722     }
0723 
0724     adap->fe[0] = pdata->get_dvb_frontend(client);
0725     dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
0726 
0727     dev->i2c_client_demod = client;
0728 
0729     return 0;
0730 err:
0731     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0732     return ret;
0733 }
0734 
0735 static const struct rtl2832_platform_data rtl2832_fc2580_platform_data = {
0736     .clk = 28800000,
0737     .tuner = TUNER_RTL2832_FC2580,
0738 };
0739 
0740 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
0741     .clk = 28800000,
0742     .tuner = TUNER_RTL2832_FC0012
0743 };
0744 
0745 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
0746     .clk = 28800000,
0747     .tuner = TUNER_RTL2832_FC0013
0748 };
0749 
0750 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
0751     .clk = 28800000,
0752     .tuner = TUNER_RTL2832_TUA9001,
0753 };
0754 
0755 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
0756     .clk = 28800000,
0757     .tuner = TUNER_RTL2832_E4000,
0758 };
0759 
0760 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
0761     .clk = 28800000,
0762     .tuner = TUNER_RTL2832_R820T,
0763 };
0764 
0765 static const struct rtl2832_platform_data rtl2832_si2157_platform_data = {
0766     .clk = 28800000,
0767     .tuner = TUNER_RTL2832_SI2157,
0768 };
0769 
0770 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
0771         int cmd, int arg)
0772 {
0773     int ret;
0774     u8 val;
0775 
0776     dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
0777 
0778     switch (cmd) {
0779     case FC_FE_CALLBACK_VHF_ENABLE:
0780         /* set output values */
0781         ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
0782         if (ret)
0783             goto err;
0784 
0785         if (arg)
0786             val &= 0xbf; /* set GPIO6 low */
0787         else
0788             val |= 0x40; /* set GPIO6 high */
0789 
0790 
0791         ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
0792         if (ret)
0793             goto err;
0794         break;
0795     default:
0796         ret = -EINVAL;
0797         goto err;
0798     }
0799     return 0;
0800 err:
0801     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0802     return ret;
0803 }
0804 
0805 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
0806         int cmd, int arg)
0807 {
0808     int ret;
0809     u8 val;
0810 
0811     dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
0812 
0813     /*
0814      * CEN     always enabled by hardware wiring
0815      * RESETN  GPIO4
0816      * RXEN    GPIO1
0817      */
0818 
0819     switch (cmd) {
0820     case TUA9001_CMD_RESETN:
0821         if (arg)
0822             val = (1 << 4);
0823         else
0824             val = (0 << 4);
0825 
0826         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
0827         if (ret)
0828             goto err;
0829         break;
0830     case TUA9001_CMD_RXEN:
0831         if (arg)
0832             val = (1 << 1);
0833         else
0834             val = (0 << 1);
0835 
0836         ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
0837         if (ret)
0838             goto err;
0839         break;
0840     }
0841 
0842     return 0;
0843 err:
0844     dev_dbg(&d->intf->dev, "failed=%d\n", ret);
0845     return ret;
0846 }
0847 
0848 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
0849         int cmd, int arg)
0850 {
0851     struct i2c_adapter *adapter = adapter_priv;
0852     struct device *parent = adapter->dev.parent;
0853     struct i2c_adapter *parent_adapter;
0854     struct dvb_usb_device *d;
0855     struct rtl28xxu_dev *dev;
0856 
0857     /*
0858      * All tuners are connected to demod muxed I2C adapter. We have to
0859      * resolve its parent adapter in order to get handle for this driver
0860      * private data. That is a bit hackish solution, GPIO or direct driver
0861      * callback would be better...
0862      */
0863     if (parent != NULL && parent->type == &i2c_adapter_type)
0864         parent_adapter = to_i2c_adapter(parent);
0865     else
0866         return -EINVAL;
0867 
0868     d = i2c_get_adapdata(parent_adapter);
0869     dev = d->priv;
0870 
0871     dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
0872         component, cmd, arg);
0873 
0874     switch (component) {
0875     case DVB_FRONTEND_COMPONENT_TUNER:
0876         switch (dev->tuner) {
0877         case TUNER_RTL2832_FC0012:
0878             return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
0879         case TUNER_RTL2832_TUA9001:
0880             return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
0881         }
0882     }
0883 
0884     return 0;
0885 }
0886 
0887 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
0888 {
0889     struct dvb_usb_device *d = adap_to_d(adap);
0890     struct rtl28xxu_dev *dev = d_to_priv(d);
0891     struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
0892     struct i2c_board_info board_info;
0893     struct i2c_client *client;
0894     int ret;
0895 
0896     dev_dbg(&d->intf->dev, "\n");
0897 
0898     switch (dev->tuner) {
0899     case TUNER_RTL2832_FC0012:
0900         *pdata = rtl2832_fc0012_platform_data;
0901         break;
0902     case TUNER_RTL2832_FC0013:
0903         *pdata = rtl2832_fc0013_platform_data;
0904         break;
0905     case TUNER_RTL2832_FC2580:
0906         *pdata = rtl2832_fc2580_platform_data;
0907         break;
0908     case TUNER_RTL2832_TUA9001:
0909         *pdata = rtl2832_tua9001_platform_data;
0910         break;
0911     case TUNER_RTL2832_E4000:
0912         *pdata = rtl2832_e4000_platform_data;
0913         break;
0914     case TUNER_RTL2832_R820T:
0915     case TUNER_RTL2832_R828D:
0916         *pdata = rtl2832_r820t_platform_data;
0917         break;
0918     case TUNER_RTL2832_SI2157:
0919         *pdata = rtl2832_si2157_platform_data;
0920         break;
0921     default:
0922         dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
0923         ret = -ENODEV;
0924         goto err;
0925     }
0926 
0927     /* attach demodulator */
0928     memset(&board_info, 0, sizeof(board_info));
0929     strscpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
0930     board_info.addr = 0x10;
0931     board_info.platform_data = pdata;
0932     request_module("%s", board_info.type);
0933     client = i2c_new_client_device(&d->i2c_adap, &board_info);
0934     if (!i2c_client_has_driver(client)) {
0935         ret = -ENODEV;
0936         goto err;
0937     }
0938 
0939     if (!try_module_get(client->dev.driver->owner)) {
0940         i2c_unregister_device(client);
0941         ret = -ENODEV;
0942         goto err;
0943     }
0944 
0945     adap->fe[0] = pdata->get_dvb_frontend(client);
0946     dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
0947 
0948     dev->i2c_client_demod = client;
0949 
0950     /* set fe callback */
0951     adap->fe[0]->callback = rtl2832u_frontend_callback;
0952 
0953     if (dev->slave_demod) {
0954         struct i2c_board_info info = {};
0955 
0956         /* attach slave demodulator */
0957         if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
0958             struct mn88472_config mn88472_config = {};
0959 
0960             mn88472_config.fe = &adap->fe[1];
0961             mn88472_config.i2c_wr_max = 22;
0962             strscpy(info.type, "mn88472", I2C_NAME_SIZE);
0963             mn88472_config.xtal = 20500000;
0964             mn88472_config.ts_mode = SERIAL_TS_MODE;
0965             mn88472_config.ts_clock = VARIABLE_TS_CLOCK;
0966             info.addr = 0x18;
0967             info.platform_data = &mn88472_config;
0968             request_module(info.type);
0969             client = i2c_new_client_device(&d->i2c_adap, &info);
0970             if (!i2c_client_has_driver(client))
0971                 goto err_slave_demod_failed;
0972 
0973             if (!try_module_get(client->dev.driver->owner)) {
0974                 i2c_unregister_device(client);
0975                 goto err_slave_demod_failed;
0976             }
0977 
0978             dev->i2c_client_slave_demod = client;
0979         } else if (dev->slave_demod == SLAVE_DEMOD_MN88473) {
0980             struct mn88473_config mn88473_config = {};
0981 
0982             mn88473_config.fe = &adap->fe[1];
0983             mn88473_config.i2c_wr_max = 22;
0984             strscpy(info.type, "mn88473", I2C_NAME_SIZE);
0985             info.addr = 0x18;
0986             info.platform_data = &mn88473_config;
0987             request_module(info.type);
0988             client = i2c_new_client_device(&d->i2c_adap, &info);
0989             if (!i2c_client_has_driver(client))
0990                 goto err_slave_demod_failed;
0991 
0992             if (!try_module_get(client->dev.driver->owner)) {
0993                 i2c_unregister_device(client);
0994                 goto err_slave_demod_failed;
0995             }
0996 
0997             dev->i2c_client_slave_demod = client;
0998         } else if (dev->slave_demod == SLAVE_DEMOD_CXD2837ER) {
0999             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");
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