Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

[pandora-kernel.git] / drivers / media / video / saa7134 / saa7134-dvb.c

diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c
index a36dab1..279828b 100644 (file)
--- a/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/drivers/media/video/saa7134/saa7134-dvb.c
@@ -132,9 +132,8 @@ static int mt352_aver777_init(struct dvb_frontend* fe)
        return 0;
 }
 
-static int mt352_pinnacle_tuner_pllbuf(struct dvb_frontend* fe,
-                                      struct dvb_frontend_parameters* params,
-                                      u8* pllbuf, int buf_len)
+static int mt352_pinnacle_tuner_set_params(struct dvb_frontend* fe,
+                                          struct dvb_frontend_parameters* params)
 {
        u8 off[] = { 0x00, 0xf1};
        u8 on[]  = { 0x00, 0x71};
@@ -143,31 +142,26 @@ static int mt352_pinnacle_tuner_pllbuf(struct dvb_frontend* fe,
        struct saa7134_dev *dev = fe->dvb->priv;
        struct v4l2_frequency f;
 
-       if (buf_len < 5)
-               return -EINVAL;
-
        /* set frequency (mt2050) */
        f.tuner     = 0;
        f.type      = V4L2_TUNER_DIGITAL_TV;
        f.frequency = params->frequency / 1000 * 16 / 1000;
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
        saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,&f);
        msg.buf = on;
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
 
        pinnacle_antenna_pwr(dev, antenna_pwr);
 
        /* mt352 setup */
-       mt352_pinnacle_init(fe);
-       pllbuf[0] = 0x61;
-       pllbuf[1] = 0x00;
-       pllbuf[2] = 0x00;
-       pllbuf[3] = 0x80;
-       pllbuf[4] = 0x00;
-       return 5;
+       return mt352_pinnacle_init(fe);
 }
 
-static int mt352_aver777_tuner_pllbuf(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len)
+static int mt352_aver777_tuner_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len)
 {
        if (buf_len < 5)
                return -EINVAL;
@@ -272,8 +266,8 @@ static int philips_tda6651_pll_set(u8 addr, struct dvb_frontend *fe, struct dvb_
        tuner_buf[2] = 0xca;
        tuner_buf[3] = (cp << 5) | (filter << 3) | band;
 
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
        msleep(1);
@@ -287,8 +281,8 @@ static int philips_tda6651_pll_init(u8 addr, struct dvb_frontend *fe)
        struct i2c_msg tuner_msg = {.addr = addr,.flags = 0,.buf = tu1216_init,.len = sizeof(tu1216_init) };
 
        /* setup PLL configuration */
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
        msleep(1);
@@ -358,8 +352,8 @@ static int philips_europa_tuner_init(struct dvb_frontend *fe)
        struct i2c_msg init_msg = {.addr = 0x61,.flags = 0,.buf = msg,.len = sizeof(msg) };
 
        /* setup PLL configuration */
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &init_msg, 1) != 1)
                return -EIO;
        msleep(1);
@@ -369,8 +363,8 @@ static int philips_europa_tuner_init(struct dvb_frontend *fe)
        init_msg.len  = 0x02;
        msg[0] = 0x00;
        msg[1] = 0x40;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &init_msg, 1) != 1)
                return -EIO;
 
@@ -397,8 +391,8 @@ static int philips_europa_tuner_sleep(struct dvb_frontend *fe)
        analog_msg.len  = 0x02;
        msg[0] = 0x00;
        msg[1] = 0x14;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &analog_msg, 1);
        return 0;
 }
@@ -409,7 +403,7 @@ static int philips_europa_demod_sleep(struct dvb_frontend *fe)
 
        if (dev->original_demod_sleep)
                dev->original_demod_sleep(fe);
-       fe->ops->i2c_gate_ctrl(fe, 1);
+       fe->ops.i2c_gate_ctrl(fe, 1);
        return 0;
 }
 
@@ -433,8 +427,8 @@ static int philips_fmd1216_tuner_init(struct dvb_frontend *fe)
        static u8 fmd1216_init[] = { 0x0b, 0xdc, 0x9c, 0xa0 };
        struct i2c_msg tuner_msg = {.addr = 0x61,.flags = 0,.buf = fmd1216_init,.len = sizeof(fmd1216_init) };
 
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
        msleep(1);
@@ -449,14 +443,14 @@ static int philips_fmd1216_tuner_sleep(struct dvb_frontend *fe)
        static u8 fmd1216_init[] = { 0x0b, 0xdc, 0x9c, 0x60 };
        struct i2c_msg tuner_msg = {.addr = 0x61,.flags = 0,.buf = fmd1216_init,.len = sizeof(fmd1216_init) };
 
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &tuner_msg, 1);
        msleep(1);
        fmd1216_init[2] = 0x86;
        fmd1216_init[3] = 0x54;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &tuner_msg, 1);
        msleep(1);
        return 0;
@@ -539,8 +533,8 @@ static int philips_fmd1216_tuner_set_params(struct dvb_frontend *fe, struct dvb_
        tuner_buf[2] = 0x80 | (cp << 6) | (mode  << 3) | 4;
        tuner_buf[3] = 0x40 | band;
 
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
        return 0;
@@ -652,8 +646,8 @@ static int philips_tda827x_tuner_set_params(struct dvb_frontend *fe, struct dvb_
        tuner_buf[13] = 0x40;
 
        tuner_msg.len = 14;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
 
@@ -662,8 +656,8 @@ static int philips_tda827x_tuner_set_params(struct dvb_frontend *fe, struct dvb_
        tuner_buf[0] = 0x30;
        tuner_buf[1] = 0x50 + tda827x_dvbt[i].cp;
        tuner_msg.len = 2;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &tuner_msg, 1);
 
        return 0;
@@ -675,8 +669,8 @@ static int philips_tda827x_tuner_sleep(struct dvb_frontend *fe)
        static u8 tda827x_sleep[] = { 0x30, 0xd0};
        struct i2c_msg tuner_msg = {.addr = 0x60,.flags = 0,.buf = tda827x_sleep,
                                    .len = sizeof(tda827x_sleep) };
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &tuner_msg, 1);
        return 0;
 }
@@ -779,8 +773,8 @@ static int philips_tda827xa_pll_set(u8 addr, struct dvb_frontend *fe, struct dvb
        tuner_buf[12] = 0x00;
        tuner_buf[13] = 0x39;  // lpsel
        msg.len = 14;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&dev->i2c_adap, &msg, 1) != 1)
                return -EIO;
 
@@ -788,14 +782,14 @@ static int philips_tda827xa_pll_set(u8 addr, struct dvb_frontend *fe, struct dvb
        msg.len = 2;
        reg2[0] = 0x60;
        reg2[1] = 0x3c;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
 
        reg2[0] = 0xa0;
        reg2[1] = 0x40;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
 
        msleep(2);
@@ -803,15 +797,15 @@ static int philips_tda827xa_pll_set(u8 addr, struct dvb_frontend *fe, struct dvb
        reg2[0] = 0x30;
        reg2[1] = 0x10 + tda827xa_dvbt[i].scr;
        msg.len = 2;
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
 
        msleep(550);
        reg2[0] = 0x50;
        reg2[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4);
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &msg, 1);
 
        return 0;
@@ -824,8 +818,8 @@ static int philips_tda827xa_tuner_sleep(u8 addr, struct dvb_frontend *fe)
        static u8 tda827xa_sleep[] = { 0x30, 0x90};
        struct i2c_msg tuner_msg = {.addr = addr,.flags = 0,.buf = tda827xa_sleep,
                                    .len = sizeof(tda827xa_sleep) };
-       if (fe->ops->i2c_gate_ctrl)
-               fe->ops->i2c_gate_ctrl(fe, 1);
+       if (fe->ops.i2c_gate_ctrl)
+               fe->ops.i2c_gate_ctrl(fe, 1);
        i2c_transfer(&dev->i2c_adap, &tuner_msg, 1);
        return 0;
 }
@@ -1020,112 +1014,144 @@ static int dvb_init(struct saa7134_dev *dev)
                printk("%s: pinnacle 300i dvb setup\n",dev->name);
                dev->dvb.frontend = mt352_attach(&pinnacle_300i,
                                                 &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.pllbuf = mt352_pinnacle_tuner_pllbuf;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.set_params = mt352_pinnacle_tuner_set_params;
+               }
                break;
 
        case SAA7134_BOARD_AVERMEDIA_777:
                printk("%s: avertv 777 dvb setup\n",dev->name);
                dev->dvb.frontend = mt352_attach(&avermedia_777,
                                                 &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.pllbuf = mt352_aver777_tuner_pllbuf;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.calc_regs = mt352_aver777_tuner_calc_regs;
+               }
                break;
 #endif
 #ifdef HAVE_TDA1004X
        case SAA7134_BOARD_MD7134:
                dev->dvb.frontend = tda10046_attach(&medion_cardbus,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_fmd1216_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_fmd1216_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_fmd1216_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_fmd1216_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_fmd1216_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_fmd1216_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_PHILIPS_TOUGH:
                dev->dvb.frontend = tda10046_attach(&philips_tu1216_60_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tu1216_tuner_60_init;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tu1216_tuner_60_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tu1216_tuner_60_init;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tu1216_tuner_60_set_params;
+               }
                break;
        case SAA7134_BOARD_FLYDVBTDUO:
                dev->dvb.frontend = tda10046_attach(&tda827x_lifeview_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tda827x_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_tda827x_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tda827x_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tda827x_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_FLYDVBT_DUO_CARDBUS:
                dev->dvb.frontend = tda10046_attach(&tda827x_lifeview_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tda827x_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_tda827x_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tda827x_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tda827x_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_PHILIPS_EUROPA:
                dev->dvb.frontend = tda10046_attach(&philips_europa_config,
                                                    &dev->i2c_adap);
-               dev->original_demod_sleep = dev->dvb.frontend->ops->sleep;
-               dev->dvb.frontend->ops->sleep = philips_europa_demod_sleep;
-               dev->dvb.frontend->ops->tuner_ops.init = philips_europa_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_europa_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_td1316_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->original_demod_sleep = dev->dvb.frontend->ops.sleep;
+                       dev->dvb.frontend->ops.sleep = philips_europa_demod_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_europa_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_europa_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_td1316_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_VIDEOMATE_DVBT_300:
                dev->dvb.frontend = tda10046_attach(&philips_europa_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_europa_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_europa_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_td1316_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_europa_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_europa_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_td1316_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_VIDEOMATE_DVBT_200:
                dev->dvb.frontend = tda10046_attach(&philips_tu1216_61_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tu1216_tuner_61_init;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tu1216_tuner_61_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tu1216_tuner_61_init;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tu1216_tuner_61_set_params;
+               }
                break;
        case SAA7134_BOARD_PHILIPS_TIGER:
                dev->dvb.frontend = tda10046_attach(&philips_tiger_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tiger_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_tiger_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tiger_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tiger_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tiger_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tiger_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
                dev->dvb.frontend = tda10046_attach(&philips_tiger_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tiger_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_tiger_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tiger_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tiger_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tiger_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tiger_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_FLYDVBT_LR301:
                dev->dvb.frontend = tda10046_attach(&tda827x_lifeview_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = philips_tda827x_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = philips_tda827x_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = philips_tda827x_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tda827x_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = philips_tda827x_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_FLYDVB_TRIO:
                dev->dvb.frontend = tda10046_attach(&lifeview_trio_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.sleep = lifeview_trio_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = lifeview_trio_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.sleep = lifeview_trio_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = lifeview_trio_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_ADS_DUO_CARDBUS_PTV331:
                dev->dvb.frontend = tda10046_attach(&ads_tech_duo_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = ads_duo_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = ads_duo_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = ads_duo_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = ads_duo_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = ads_duo_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = ads_duo_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_TEVION_DVBT_220RF:
                dev->dvb.frontend = tda10046_attach(&tevion_dvbt220rf_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.sleep = tevion_dvb220rf_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = tevion_dvb220rf_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.sleep = tevion_dvb220rf_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = tevion_dvb220rf_tuner_set_params;
+               }
                break;
        case SAA7134_BOARD_FLYDVBT_HYBRID_CARDBUS:
                dev->dvb.frontend = tda10046_attach(&ads_tech_duo_config,
                                                    &dev->i2c_adap);
-               dev->dvb.frontend->ops->tuner_ops.init = ads_duo_tuner_init;
-               dev->dvb.frontend->ops->tuner_ops.sleep = ads_duo_tuner_sleep;
-               dev->dvb.frontend->ops->tuner_ops.set_params = ads_duo_tuner_set_params;
+               if (dev->dvb.frontend) {
+                       dev->dvb.frontend->ops.tuner_ops.init = ads_duo_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = ads_duo_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.set_params = ads_duo_tuner_set_params;
+               }
                break;
 #endif
 #ifdef HAVE_NXT200X