Merge branch 'syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspen...
[pandora-kernel.git] / drivers / media / dvb / frontends / dib8000.c
index df17b91..c1c3e26 100644 (file)
@@ -22,6 +22,7 @@
 #define LAYER_C   3
 
 #define FE_CALLBACK_TIME_NEVER 0xffffffff
+#define MAX_NUMBER_OF_FRONTENDS 6
 
 static int debug;
 module_param(debug, int, 0644);
@@ -37,7 +38,6 @@ struct i2c_device {
 };
 
 struct dib8000_state {
-       struct dvb_frontend fe;
        struct dib8000_config cfg;
 
        struct i2c_device i2c;
@@ -68,6 +68,8 @@ struct dib8000_state {
        u8 isdbt_cfg_loaded;
        enum frontend_tune_state tune_state;
        u32 status;
+
+       struct dvb_frontend *fe[MAX_NUMBER_OF_FRONTENDS];
 };
 
 enum dib8000_power_mode {
@@ -122,111 +124,111 @@ static int dib8000_write_word(struct dib8000_state *state, u16 reg, u16 val)
        return dib8000_i2c_write16(&state->i2c, reg, val);
 }
 
-static const int16_t coeff_2k_sb_1seg_dqpsk[8] = {
+static const s16 coeff_2k_sb_1seg_dqpsk[8] = {
        (769 << 5) | 0x0a, (745 << 5) | 0x03, (595 << 5) | 0x0d, (769 << 5) | 0x0a, (920 << 5) | 0x09, (784 << 5) | 0x02, (519 << 5) | 0x0c,
-           (920 << 5) | 0x09
+               (920 << 5) | 0x09
 };
 
-static const int16_t coeff_2k_sb_1seg[8] = {
+static const s16 coeff_2k_sb_1seg[8] = {
        (692 << 5) | 0x0b, (683 << 5) | 0x01, (519 << 5) | 0x09, (692 << 5) | 0x0b, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f
 };
 
-static const int16_t coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const s16 coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = {
        (832 << 5) | 0x10, (912 << 5) | 0x05, (900 << 5) | 0x12, (832 << 5) | 0x10, (-931 << 5) | 0x0f, (912 << 5) | 0x04, (807 << 5) | 0x11,
-           (-931 << 5) | 0x0f
+               (-931 << 5) | 0x0f
 };
 
-static const int16_t coeff_2k_sb_3seg_0dqpsk[8] = {
+static const s16 coeff_2k_sb_3seg_0dqpsk[8] = {
        (622 << 5) | 0x0c, (941 << 5) | 0x04, (796 << 5) | 0x10, (622 << 5) | 0x0c, (982 << 5) | 0x0c, (519 << 5) | 0x02, (572 << 5) | 0x0e,
-           (982 << 5) | 0x0c
+               (982 << 5) | 0x0c
 };
 
-static const int16_t coeff_2k_sb_3seg_1dqpsk[8] = {
+static const s16 coeff_2k_sb_3seg_1dqpsk[8] = {
        (699 << 5) | 0x14, (607 << 5) | 0x04, (944 << 5) | 0x13, (699 << 5) | 0x14, (-720 << 5) | 0x0d, (640 << 5) | 0x03, (866 << 5) | 0x12,
-           (-720 << 5) | 0x0d
+               (-720 << 5) | 0x0d
 };
 
-static const int16_t coeff_2k_sb_3seg[8] = {
+static const s16 coeff_2k_sb_3seg[8] = {
        (664 << 5) | 0x0c, (925 << 5) | 0x03, (937 << 5) | 0x10, (664 << 5) | 0x0c, (-610 << 5) | 0x0a, (697 << 5) | 0x01, (836 << 5) | 0x0e,
-           (-610 << 5) | 0x0a
+               (-610 << 5) | 0x0a
 };
 
-static const int16_t coeff_4k_sb_1seg_dqpsk[8] = {
+static const s16 coeff_4k_sb_1seg_dqpsk[8] = {
        (-955 << 5) | 0x0e, (687 << 5) | 0x04, (818 << 5) | 0x10, (-955 << 5) | 0x0e, (-922 << 5) | 0x0d, (750 << 5) | 0x03, (665 << 5) | 0x0f,
-           (-922 << 5) | 0x0d
+               (-922 << 5) | 0x0d
 };
 
-static const int16_t coeff_4k_sb_1seg[8] = {
+static const s16 coeff_4k_sb_1seg[8] = {
        (638 << 5) | 0x0d, (683 << 5) | 0x02, (638 << 5) | 0x0d, (638 << 5) | 0x0d, (-655 << 5) | 0x0a, (517 << 5) | 0x00, (698 << 5) | 0x0d,
-           (-655 << 5) | 0x0a
+               (-655 << 5) | 0x0a
 };
 
-static const int16_t coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const s16 coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = {
        (-707 << 5) | 0x14, (910 << 5) | 0x06, (889 << 5) | 0x16, (-707 << 5) | 0x14, (-958 << 5) | 0x13, (993 << 5) | 0x05, (523 << 5) | 0x14,
-           (-958 << 5) | 0x13
+               (-958 << 5) | 0x13
 };
 
-static const int16_t coeff_4k_sb_3seg_0dqpsk[8] = {
+static const s16 coeff_4k_sb_3seg_0dqpsk[8] = {
        (-723 << 5) | 0x13, (910 << 5) | 0x05, (777 << 5) | 0x14, (-723 << 5) | 0x13, (-568 << 5) | 0x0f, (547 << 5) | 0x03, (696 << 5) | 0x12,
-           (-568 << 5) | 0x0f
+               (-568 << 5) | 0x0f
 };
 
-static const int16_t coeff_4k_sb_3seg_1dqpsk[8] = {
+static const s16 coeff_4k_sb_3seg_1dqpsk[8] = {
        (-940 << 5) | 0x15, (607 << 5) | 0x05, (915 << 5) | 0x16, (-940 << 5) | 0x15, (-848 << 5) | 0x13, (683 << 5) | 0x04, (543 << 5) | 0x14,
-           (-848 << 5) | 0x13
+               (-848 << 5) | 0x13
 };
 
-static const int16_t coeff_4k_sb_3seg[8] = {
+static const s16 coeff_4k_sb_3seg[8] = {
        (612 << 5) | 0x12, (910 << 5) | 0x04, (864 << 5) | 0x14, (612 << 5) | 0x12, (-869 << 5) | 0x13, (683 << 5) | 0x02, (869 << 5) | 0x12,
-           (-869 << 5) | 0x13
+               (-869 << 5) | 0x13
 };
 
-static const int16_t coeff_8k_sb_1seg_dqpsk[8] = {
+static const s16 coeff_8k_sb_1seg_dqpsk[8] = {
        (-835 << 5) | 0x12, (684 << 5) | 0x05, (735 << 5) | 0x14, (-835 << 5) | 0x12, (-598 << 5) | 0x10, (781 << 5) | 0x04, (739 << 5) | 0x13,
-           (-598 << 5) | 0x10
+               (-598 << 5) | 0x10
 };
 
-static const int16_t coeff_8k_sb_1seg[8] = {
+static const s16 coeff_8k_sb_1seg[8] = {
        (673 << 5) | 0x0f, (683 << 5) | 0x03, (808 << 5) | 0x12, (673 << 5) | 0x0f, (585 << 5) | 0x0f, (512 << 5) | 0x01, (780 << 5) | 0x0f,
-           (585 << 5) | 0x0f
+               (585 << 5) | 0x0f
 };
 
-static const int16_t coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const s16 coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = {
        (863 << 5) | 0x17, (930 << 5) | 0x07, (878 << 5) | 0x19, (863 << 5) | 0x17, (0 << 5) | 0x14, (521 << 5) | 0x05, (980 << 5) | 0x18,
-           (0 << 5) | 0x14
+               (0 << 5) | 0x14
 };
 
-static const int16_t coeff_8k_sb_3seg_0dqpsk[8] = {
+static const s16 coeff_8k_sb_3seg_0dqpsk[8] = {
        (-924 << 5) | 0x17, (910 << 5) | 0x06, (774 << 5) | 0x17, (-924 << 5) | 0x17, (-877 << 5) | 0x15, (565 << 5) | 0x04, (553 << 5) | 0x15,
-           (-877 << 5) | 0x15
+               (-877 << 5) | 0x15
 };
 
-static const int16_t coeff_8k_sb_3seg_1dqpsk[8] = {
+static const s16 coeff_8k_sb_3seg_1dqpsk[8] = {
        (-921 << 5) | 0x19, (607 << 5) | 0x06, (881 << 5) | 0x19, (-921 << 5) | 0x19, (-921 << 5) | 0x14, (713 << 5) | 0x05, (1018 << 5) | 0x18,
-           (-921 << 5) | 0x14
+               (-921 << 5) | 0x14
 };
 
-static const int16_t coeff_8k_sb_3seg[8] = {
+static const s16 coeff_8k_sb_3seg[8] = {
        (514 << 5) | 0x14, (910 << 5) | 0x05, (861 << 5) | 0x17, (514 << 5) | 0x14, (690 << 5) | 0x14, (683 << 5) | 0x03, (662 << 5) | 0x15,
-           (690 << 5) | 0x14
+               (690 << 5) | 0x14
 };
 
-static const int16_t ana_fe_coeff_3seg[24] = {
+static const s16 ana_fe_coeff_3seg[24] = {
        81, 80, 78, 74, 68, 61, 54, 45, 37, 28, 19, 11, 4, 1022, 1017, 1013, 1010, 1008, 1008, 1008, 1008, 1010, 1014, 1017
 };
 
-static const int16_t ana_fe_coeff_1seg[24] = {
+static const s16 ana_fe_coeff_1seg[24] = {
        249, 226, 164, 82, 5, 981, 970, 988, 1018, 20, 31, 26, 8, 1012, 1000, 1018, 1012, 8, 15, 14, 9, 3, 1017, 1003
 };
 
-static const int16_t ana_fe_coeff_13seg[24] = {
+static const s16 ana_fe_coeff_13seg[24] = {
        396, 305, 105, -51, -77, -12, 41, 31, -11, -30, -11, 14, 15, -2, -13, -7, 5, 8, 1, -6, -7, -3, 0, 1
 };
 
 static u16 fft_to_mode(struct dib8000_state *state)
 {
        u16 mode;
-       switch (state->fe.dtv_property_cache.transmission_mode) {
+       switch (state->fe[0]->dtv_property_cache.transmission_mode) {
        case TRANSMISSION_MODE_2K:
                mode = 1;
                break;
@@ -249,16 +251,18 @@ static void dib8000_set_acquisition_mode(struct dib8000_state *state)
        dprintk("acquisition mode activated");
        dib8000_write_word(state, 298, nud);
 }
-
-static int dib8000_set_output_mode(struct dib8000_state *state, int mode)
+static int dib8000_set_output_mode(struct dvb_frontend *fe, int mode)
 {
+       struct dib8000_state *state = fe->demodulator_priv;
+
        u16 outreg, fifo_threshold, smo_mode, sram = 0x0205;    /* by default SDRAM deintlv is enabled */
 
        outreg = 0;
        fifo_threshold = 1792;
        smo_mode = (dib8000_read_word(state, 299) & 0x0050) | (1 << 1);
 
-       dprintk("-I-  Setting output mode for demod %p to %d", &state->fe, mode);
+       dprintk("-I-    Setting output mode for demod %p to %d",
+                       &state->fe[0], mode);
 
        switch (mode) {
        case OUTMODE_MPEG2_PAR_GATED_CLK:       // STBs with parallel gated clock
@@ -292,7 +296,8 @@ static int dib8000_set_output_mode(struct dib8000_state *state, int mode)
                break;
 
        default:
-               dprintk("Unhandled output_mode passed to be set for demod %p", &state->fe);
+               dprintk("Unhandled output_mode passed to be set for demod %p",
+                               &state->fe[0]);
                return -EINVAL;
        }
 
@@ -342,7 +347,8 @@ static void dib8000_set_power_mode(struct dib8000_state *state, enum dib8000_pow
 {
        /* by default everything is going to be powered off */
        u16 reg_774 = 0x3fff, reg_775 = 0xffff, reg_776 = 0xffff,
-           reg_900 = (dib8000_read_word(state, 900) & 0xfffc) | 0x3, reg_1280 = (dib8000_read_word(state, 1280) & 0x00ff) | 0xff00;
+               reg_900 = (dib8000_read_word(state, 900) & 0xfffc) | 0x3,
+               reg_1280 = (dib8000_read_word(state, 1280) & 0x00ff) | 0xff00;
 
        /* now, depending on the requested mode, we power on */
        switch (mode) {
@@ -411,8 +417,9 @@ static int dib8000_set_adc_state(struct dib8000_state *state, enum dibx000_adc_s
        return ret;
 }
 
-static int dib8000_set_bandwidth(struct dib8000_state *state, u32 bw)
+static int dib8000_set_bandwidth(struct dvb_frontend *fe, u32 bw)
 {
+       struct dib8000_state *state = fe->demodulator_priv;
        u32 timf;
 
        if (bw == 0)
@@ -478,7 +485,8 @@ static void dib8000_reset_pll(struct dib8000_state *state)
 
        // clk_cfg1
        clk_cfg1 = (1 << 10) | (0 << 9) | (pll->IO_CLK_en_core << 8) |
-           (pll->bypclk_div << 5) | (pll->enable_refdiv << 4) | (1 << 3) | (pll->pll_range << 1) | (pll->pll_reset << 0);
+               (pll->bypclk_div << 5) | (pll->enable_refdiv << 4) | (1 << 3) |
+               (pll->pll_range << 1) | (pll->pll_reset << 0);
 
        dib8000_write_word(state, 902, clk_cfg1);
        clk_cfg1 = (clk_cfg1 & 0xfff7) | (pll->pll_bypass << 3);
@@ -488,11 +496,12 @@ static void dib8000_reset_pll(struct dib8000_state *state)
 
        /* smpl_cfg: P_refclksel=2, P_ensmplsel=1 nodivsmpl=1 */
        if (state->cfg.pll->ADClkSrc == 0)
-               dib8000_write_word(state, 904, (0 << 15) | (0 << 12) | (0 << 10) | (pll->modulo << 8) | (pll->ADClkSrc << 7) | (0 << 1));
+               dib8000_write_word(state, 904, (0 << 15) | (0 << 12) | (0 << 10) |
+                               (pll->modulo << 8) | (pll->ADClkSrc << 7) | (0 << 1));
        else if (state->cfg.refclksel != 0)
-               dib8000_write_word(state, 904,
-                                  (0 << 15) | (1 << 12) | ((state->cfg.refclksel & 0x3) << 10) | (pll->modulo << 8) | (pll->
-                                                                                                                       ADClkSrc << 7) | (0 << 1));
+               dib8000_write_word(state, 904, (0 << 15) | (1 << 12) |
+                               ((state->cfg.refclksel & 0x3) << 10) | (pll->modulo << 8) |
+                               (pll->ADClkSrc << 7) | (0 << 1));
        else
                dib8000_write_word(state, 904, (0 << 15) | (1 << 12) | (3 << 10) | (pll->modulo << 8) | (pll->ADClkSrc << 7) | (0 << 1));
 
@@ -560,7 +569,7 @@ static const u16 dib8000_defaults[] = {
        0xd4c0,
 
        /*1, 32,
-          0x6680 // P_corm_thres Lock algorithms configuration */
+               0x6680 // P_corm_thres Lock algorithms configuration */
 
        11, 80,                 /* set ADC level to -16 */
        (1 << 13) - 825 - 117,
@@ -623,14 +632,14 @@ static const u16 dib8000_defaults[] = {
        1, 285,
        0x0020,                 //p_fec_
        1, 299,
-       0x0062,                 // P_smo_mode, P_smo_rs_discard, P_smo_fifo_flush, P_smo_pid_parse, P_smo_error_discard
+       0x0062,                 /* P_smo_mode, P_smo_rs_discard, P_smo_fifo_flush, P_smo_pid_parse, P_smo_error_discard */
 
        1, 338,
        (1 << 12) |             // P_ctrl_corm_thres4pre_freq_inh=1
-           (1 << 10) |         // P_ctrl_pre_freq_mode_sat=1
-           (0 << 9) |          // P_ctrl_pre_freq_inh=0
-           (3 << 5) |          // P_ctrl_pre_freq_step=3
-           (1 << 0),           // P_pre_freq_win_len=1
+               (1 << 10) |
+               (0 << 9) |              /* P_ctrl_pre_freq_inh=0 */
+               (3 << 5) |              /* P_ctrl_pre_freq_step=3 */
+               (1 << 0),               /* P_pre_freq_win_len=1 */
 
        1, 903,
        (0 << 4) | 2,           // P_divclksel=0 P_divbitsel=2 (was clk=3,bit=1 for MPW)
@@ -717,7 +726,7 @@ static int dib8000_reset(struct dvb_frontend *fe)
        if (dib8000_reset_gpio(state) != 0)
                dprintk("GPIO reset was not successful.");
 
-       if (dib8000_set_output_mode(state, OUTMODE_HIGH_Z) != 0)
+       if (dib8000_set_output_mode(fe, OUTMODE_HIGH_Z) != 0)
                dprintk("OUTPUT_MODE could not be resetted.");
 
        state->current_agc = NULL;
@@ -752,7 +761,7 @@ static int dib8000_reset(struct dvb_frontend *fe)
        /* unforce divstr regardless whether i2c enumeration was done or not */
        dib8000_write_word(state, 1285, dib8000_read_word(state, 1285) & ~(1 << 1));
 
-       dib8000_set_bandwidth(state, 6000);
+       dib8000_set_bandwidth(fe, 6000);
 
        dib8000_set_adc_state(state, DIBX000_SLOW_ADC_ON);
        dib8000_sad_calib(state);
@@ -778,7 +787,7 @@ static int dib8000_update_lna(struct dib8000_state *state)
                // read dyn_gain here (because it is demod-dependent and not tuner)
                dyn_gain = dib8000_read_word(state, 390);
 
-               if (state->cfg.update_lna(&state->fe, dyn_gain)) {      // LNA has changed
+               if (state->cfg.update_lna(state->fe[0], dyn_gain)) {
                        dib8000_restart_agc(state);
                        return 1;
                }
@@ -865,7 +874,8 @@ static int dib8000_agc_soft_split(struct dib8000_state *state)
                split_offset = state->current_agc->split.max;
        else
                split_offset = state->current_agc->split.max *
-                   (agc - state->current_agc->split.min_thres) / (state->current_agc->split.max_thres - state->current_agc->split.min_thres);
+                       (agc - state->current_agc->split.min_thres) /
+                       (state->current_agc->split.max_thres - state->current_agc->split.min_thres);
 
        dprintk("AGC split_offset: %d", split_offset);
 
@@ -900,7 +910,7 @@ static int dib8000_agc_startup(struct dvb_frontend *fe)
        case CT_AGC_STEP_0:
                //AGC initialization
                if (state->cfg.agc_control)
-                       state->cfg.agc_control(&state->fe, 1);
+                       state->cfg.agc_control(fe, 1);
 
                dib8000_restart_agc(state);
 
@@ -924,7 +934,7 @@ static int dib8000_agc_startup(struct dvb_frontend *fe)
                dib8000_agc_soft_split(state);
 
                if (state->cfg.agc_control)
-                       state->cfg.agc_control(&state->fe, 0);
+                       state->cfg.agc_control(fe, 0);
 
                *tune_state = CT_AGC_STOP;
                break;
@@ -936,29 +946,28 @@ static int dib8000_agc_startup(struct dvb_frontend *fe)
 
 }
 
-static const int32_t lut_1000ln_mant[] =
+static const s32 lut_1000ln_mant[] =
 {
        908, 7003, 7090, 7170, 7244, 7313, 7377, 7438, 7495, 7549, 7600
 };
 
-int32_t dib8000_get_adc_power(struct dvb_frontend *fe, uint8_t mode)
+s32 dib8000_get_adc_power(struct dvb_frontend *fe, u8 mode)
 {
-    struct dib8000_state *state = fe->demodulator_priv;
-    uint32_t ix = 0, tmp_val = 0, exp = 0, mant = 0;
-    int32_t val;
-
-    val = dib8000_read32(state, 384);
-    /* mode = 1 : ln_agcpower calc using mant-exp conversion and mantis look up table */
-    if (mode) {
-       tmp_val = val;
-       while (tmp_val >>= 1)
-               exp++;
-       mant = (val * 1000 / (1<<exp));
-       ix = (uint8_t)((mant-1000)/100); /* index of the LUT */
-       val = (lut_1000ln_mant[ix] + 693*(exp-20) - 6908); /* 1000 * ln(adcpower_real) ; 693 = 1000ln(2) ; 6908 = 1000*ln(1000) ; 20 comes from adc_real = adc_pow_int / 2**20 */
-       val = (val*256)/1000;
-    }
-    return val;
+       struct dib8000_state *state = fe->demodulator_priv;
+       u32 ix = 0, tmp_val = 0, exp = 0, mant = 0;
+       s32 val;
+
+       val = dib8000_read32(state, 384);
+       if (mode) {
+               tmp_val = val;
+               while (tmp_val >>= 1)
+                       exp++;
+               mant = (val * 1000 / (1<<exp));
+               ix = (u8)((mant-1000)/100); /* index of the LUT */
+               val = (lut_1000ln_mant[ix] + 693*(exp-20) - 6908);
+               val = (val*256)/1000;
+       }
+       return val;
 }
 EXPORT_SYMBOL(dib8000_get_adc_power);
 
@@ -1002,22 +1011,23 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                dib8000_write_word(state, 285, dib8000_read_word(state, 285) & 0x60);
 
        i = dib8000_read_word(state, 26) & 1;   // P_dds_invspec
-       dib8000_write_word(state, 26, state->fe.dtv_property_cache.inversion ^ i);
+       dib8000_write_word(state, 26, state->fe[0]->dtv_property_cache.inversion^i);
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode) {
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode) {
                //compute new dds_freq for the seg and adjust prbs
                int seg_offset =
-                   state->fe.dtv_property_cache.isdbt_sb_segment_idx - (state->fe.dtv_property_cache.isdbt_sb_segment_count / 2) -
-                   (state->fe.dtv_property_cache.isdbt_sb_segment_count % 2);
+                       state->fe[0]->dtv_property_cache.isdbt_sb_segment_idx -
+                       (state->fe[0]->dtv_property_cache.isdbt_sb_segment_count / 2) -
+                       (state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2);
                int clk = state->cfg.pll->internal;
                u32 segtodds = ((u32) (430 << 23) / clk) << 3;  // segtodds = SegBW / Fclk * pow(2,26)
                int dds_offset = seg_offset * segtodds;
                int new_dds, sub_channel;
-               if ((state->fe.dtv_property_cache.isdbt_sb_segment_count % 2) == 0)     // if even
+               if ((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
                        dds_offset -= (int)(segtodds / 2);
 
                if (state->cfg.pll->ifreq == 0) {
-                       if ((state->fe.dtv_property_cache.inversion ^ i) == 0) {
+                       if ((state->fe[0]->dtv_property_cache.inversion ^ i) == 0) {
                                dib8000_write_word(state, 26, dib8000_read_word(state, 26) | 1);
                                new_dds = dds_offset;
                        } else
@@ -1027,35 +1037,35 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        //  - the segment of center frequency with an odd total number of segments
                        //  - the segment to the left of center frequency with an even total number of segments
                        //  - the segment to the right of center frequency with an even total number of segments
-                       if ((state->fe.dtv_property_cache.delivery_system == SYS_ISDBT) && (state->fe.dtv_property_cache.isdbt_sb_mode == 1)
-                           &&
-                           (((state->fe.dtv_property_cache.isdbt_sb_segment_count % 2)
-                             && (state->fe.dtv_property_cache.isdbt_sb_segment_idx ==
-                                 ((state->fe.dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))
-                            || (((state->fe.dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
-                                && (state->fe.dtv_property_cache.isdbt_sb_segment_idx == (state->fe.dtv_property_cache.isdbt_sb_segment_count / 2)))
-                            || (((state->fe.dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
-                                && (state->fe.dtv_property_cache.isdbt_sb_segment_idx ==
-                                    ((state->fe.dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))
-                           )) {
+                       if ((state->fe[0]->dtv_property_cache.delivery_system == SYS_ISDBT)
+                               && (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1)
+                                       && (((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2)
+                                         && (state->fe[0]->dtv_property_cache.isdbt_sb_segment_idx ==
+                                 ((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))
+                                        || (((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
+                                                && (state->fe[0]->dtv_property_cache.isdbt_sb_segment_idx == (state->fe[0]->dtv_property_cache.isdbt_sb_segment_count / 2)))
+                                        || (((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
+                                                && (state->fe[0]->dtv_property_cache.isdbt_sb_segment_idx ==
+                                                        ((state->fe[0]->dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))
+                                       )) {
                                new_dds -= ((u32) (850 << 22) / clk) << 4;      // new_dds = 850 (freq shift in KHz) / Fclk * pow(2,26)
                        }
                } else {
-                       if ((state->fe.dtv_property_cache.inversion ^ i) == 0)
+                       if ((state->fe[0]->dtv_property_cache.inversion ^ i) == 0)
                                new_dds = state->cfg.pll->ifreq - dds_offset;
                        else
                                new_dds = state->cfg.pll->ifreq + dds_offset;
                }
                dib8000_write_word(state, 27, (u16) ((new_dds >> 16) & 0x01ff));
                dib8000_write_word(state, 28, (u16) (new_dds & 0xffff));
-               if (state->fe.dtv_property_cache.isdbt_sb_segment_count % 2)    // if odd
-                       sub_channel = ((state->fe.dtv_property_cache.isdbt_sb_subchannel + (3 * seg_offset) + 1) % 41) / 3;
-               else            // if even
-                       sub_channel = ((state->fe.dtv_property_cache.isdbt_sb_subchannel + (3 * seg_offset)) % 41) / 3;
+               if (state->fe[0]->dtv_property_cache.isdbt_sb_segment_count % 2)
+                       sub_channel = ((state->fe[0]->dtv_property_cache.isdbt_sb_subchannel + (3 * seg_offset) + 1) % 41) / 3;
+               else
+                       sub_channel = ((state->fe[0]->dtv_property_cache.isdbt_sb_subchannel + (3 * seg_offset)) % 41) / 3;
                sub_channel -= 6;
 
-               if (state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_2K
-                   || state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_4K) {
+               if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_2K
+                               || state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_4K) {
                        dib8000_write_word(state, 219, dib8000_read_word(state, 219) | 0x1);    //adp_pass =1
                        dib8000_write_word(state, 190, dib8000_read_word(state, 190) | (0x1 << 14));    //pha3_force_pha_shift = 1
                } else {
@@ -1063,7 +1073,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        dib8000_write_word(state, 190, dib8000_read_word(state, 190) & 0xbfff); //pha3_force_pha_shift = 0
                }
 
-               switch (state->fe.dtv_property_cache.transmission_mode) {
+               switch (state->fe[0]->dtv_property_cache.transmission_mode) {
                case TRANSMISSION_MODE_2K:
                        switch (sub_channel) {
                        case -6:
@@ -1209,7 +1219,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        }
                        break;
                }
-       } else {                // if not state->fe.dtv_property_cache.isdbt_sb_mode
+       } else {
                dib8000_write_word(state, 27, (u16) ((state->cfg.pll->ifreq >> 16) & 0x01ff));
                dib8000_write_word(state, 28, (u16) (state->cfg.pll->ifreq & 0xffff));
                dib8000_write_word(state, 26, (u16) ((state->cfg.pll->ifreq >> 25) & 0x0003));
@@ -1218,7 +1228,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        dib8000_write_word(state, 10, (seq << 4));
        //  dib8000_write_word(state, 287, (dib8000_read_word(state, 287) & 0xe000) | 0x1000);
 
-       switch (state->fe.dtv_property_cache.guard_interval) {
+       switch (state->fe[0]->dtv_property_cache.guard_interval) {
        case GUARD_INTERVAL_1_32:
                guard = 0;
                break;
@@ -1238,7 +1248,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
 
        max_constellation = DQPSK;
        for (i = 0; i < 3; i++) {
-               switch (state->fe.dtv_property_cache.layer[i].modulation) {
+               switch (state->fe[0]->dtv_property_cache.layer[i].modulation) {
                case DQPSK:
                        constellation = 0;
                        break;
@@ -1254,7 +1264,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        break;
                }
 
-               switch (state->fe.dtv_property_cache.layer[i].fec) {
+               switch (state->fe[0]->dtv_property_cache.layer[i].fec) {
                case FEC_1_2:
                        crate = 1;
                        break;
@@ -1273,26 +1283,26 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        break;
                }
 
-               if ((state->fe.dtv_property_cache.layer[i].interleaving > 0) &&
-                   ((state->fe.dtv_property_cache.layer[i].interleaving <= 3) ||
-                    (state->fe.dtv_property_cache.layer[i].interleaving == 4 && state->fe.dtv_property_cache.isdbt_sb_mode == 1))
-                   )
-                       timeI = state->fe.dtv_property_cache.layer[i].interleaving;
+               if ((state->fe[0]->dtv_property_cache.layer[i].interleaving > 0) &&
+                               ((state->fe[0]->dtv_property_cache.layer[i].interleaving <= 3) ||
+                                (state->fe[0]->dtv_property_cache.layer[i].interleaving == 4 && state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1))
+                       )
+                       timeI = state->fe[0]->dtv_property_cache.layer[i].interleaving;
                else
                        timeI = 0;
-               dib8000_write_word(state, 2 + i, (constellation << 10) | ((state->fe.dtv_property_cache.layer[i].segment_count & 0xf) << 6) |
-                                  (crate << 3) | timeI);
-               if (state->fe.dtv_property_cache.layer[i].segment_count > 0) {
+               dib8000_write_word(state, 2 + i, (constellation << 10) | ((state->fe[0]->dtv_property_cache.layer[i].segment_count & 0xf) << 6) |
+                                       (crate << 3) | timeI);
+               if (state->fe[0]->dtv_property_cache.layer[i].segment_count > 0) {
                        switch (max_constellation) {
                        case DQPSK:
                        case QPSK:
-                               if (state->fe.dtv_property_cache.layer[i].modulation == QAM_16 ||
-                                   state->fe.dtv_property_cache.layer[i].modulation == QAM_64)
-                                       max_constellation = state->fe.dtv_property_cache.layer[i].modulation;
+                               if (state->fe[0]->dtv_property_cache.layer[i].modulation == QAM_16 ||
+                                       state->fe[0]->dtv_property_cache.layer[i].modulation == QAM_64)
+                                       max_constellation = state->fe[0]->dtv_property_cache.layer[i].modulation;
                                break;
                        case QAM_16:
-                               if (state->fe.dtv_property_cache.layer[i].modulation == QAM_64)
-                                       max_constellation = state->fe.dtv_property_cache.layer[i].modulation;
+                               if (state->fe[0]->dtv_property_cache.layer[i].modulation == QAM_64)
+                                       max_constellation = state->fe[0]->dtv_property_cache.layer[i].modulation;
                                break;
                        }
                }
@@ -1303,34 +1313,34 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        //dib8000_write_word(state, 5, 13); /*p_last_seg = 13*/
 
        dib8000_write_word(state, 274, (dib8000_read_word(state, 274) & 0xffcf) |
-                          ((state->fe.dtv_property_cache.isdbt_partial_reception & 1) << 5) | ((state->fe.dtv_property_cache.
+                               ((state->fe[0]->dtv_property_cache.isdbt_partial_reception & 1) << 5) | ((state->fe[0]->dtv_property_cache.
                                                                                                 isdbt_sb_mode & 1) << 4));
 
-       dprintk("mode = %d ; guard = %d", mode, state->fe.dtv_property_cache.guard_interval);
+       dprintk("mode = %d ; guard = %d", mode, state->fe[0]->dtv_property_cache.guard_interval);
 
        /* signal optimization parameter */
 
-       if (state->fe.dtv_property_cache.isdbt_partial_reception) {
-               seg_diff_mask = (state->fe.dtv_property_cache.layer[0].modulation == DQPSK) << permu_seg[0];
+       if (state->fe[0]->dtv_property_cache.isdbt_partial_reception) {
+               seg_diff_mask = (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK) << permu_seg[0];
                for (i = 1; i < 3; i++)
                        nbseg_diff +=
-                           (state->fe.dtv_property_cache.layer[i].modulation == DQPSK) * state->fe.dtv_property_cache.layer[i].segment_count;
+                               (state->fe[0]->dtv_property_cache.layer[i].modulation == DQPSK) * state->fe[0]->dtv_property_cache.layer[i].segment_count;
                for (i = 0; i < nbseg_diff; i++)
                        seg_diff_mask |= 1 << permu_seg[i + 1];
        } else {
                for (i = 0; i < 3; i++)
                        nbseg_diff +=
-                           (state->fe.dtv_property_cache.layer[i].modulation == DQPSK) * state->fe.dtv_property_cache.layer[i].segment_count;
+                               (state->fe[0]->dtv_property_cache.layer[i].modulation == DQPSK) * state->fe[0]->dtv_property_cache.layer[i].segment_count;
                for (i = 0; i < nbseg_diff; i++)
                        seg_diff_mask |= 1 << permu_seg[i];
        }
        dprintk("nbseg_diff = %X (%d)", seg_diff_mask, seg_diff_mask);
 
        state->differential_constellation = (seg_diff_mask != 0);
-       dib8000_set_diversity_in(&state->fe, state->diversity_onoff);
+       dib8000_set_diversity_in(state->fe[0], state->diversity_onoff);
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {  // ISDB-Tsb
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 1)  // 3-segments
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 1)
                        seg_mask13 = 0x00E0;
                else            // 1-segment
                        seg_mask13 = 0x0040;
@@ -1340,7 +1350,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        // WRITE: Mode & Diff mask
        dib8000_write_word(state, 0, (mode << 13) | seg_diff_mask);
 
-       if ((seg_diff_mask) || (state->fe.dtv_property_cache.isdbt_sb_mode))
+       if ((seg_diff_mask) || (state->fe[0]->dtv_property_cache.isdbt_sb_mode))
                dib8000_write_word(state, 268, (dib8000_read_word(state, 268) & 0xF9FF) | 0x0200);
        else
                dib8000_write_word(state, 268, (2 << 9) | 39);  //init value
@@ -1351,26 +1361,25 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
 
        dib8000_write_word(state, 353, seg_mask13);     // ADDR 353
 
-/*     // P_small_narrow_band=0, P_small_last_seg=13, P_small_offset_num_car=5 */
-       // dib8000_write_word(state, 351, (state->fe.dtv_property_cache.isdbt_sb_mode << 8) | (13 << 4) | 5 );
+/*     // P_small_narrow_band=0, P_small_last_seg=13, P_small_offset_num_car=5 */
 
        // ---- SMALL ----
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {
-               switch (state->fe.dtv_property_cache.transmission_mode) {
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+               switch (state->fe[0]->dtv_property_cache.transmission_mode) {
                case TRANSMISSION_MODE_2K:
-                       if (state->fe.dtv_property_cache.isdbt_partial_reception == 0) {        // 1-seg
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK)  // DQPSK
+                       if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0) {
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK)
                                        ncoeff = coeff_2k_sb_1seg_dqpsk;
                                else    // QPSK or QAM
                                        ncoeff = coeff_2k_sb_1seg;
                        } else {        // 3-segments
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK) {        // DQPSK on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK)  // DQPSK on external segments
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK) {
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK)
                                                ncoeff = coeff_2k_sb_3seg_0dqpsk_1dqpsk;
                                        else    // QPSK or QAM on external segments
                                                ncoeff = coeff_2k_sb_3seg_0dqpsk;
                                } else {        // QPSK or QAM on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK)  // DQPSK on external segments
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK)
                                                ncoeff = coeff_2k_sb_3seg_1dqpsk;
                                        else    // QPSK or QAM on external segments
                                                ncoeff = coeff_2k_sb_3seg;
@@ -1379,20 +1388,20 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        break;
 
                case TRANSMISSION_MODE_4K:
-                       if (state->fe.dtv_property_cache.isdbt_partial_reception == 0) {        // 1-seg
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK)  // DQPSK
+                       if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0) {
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK)
                                        ncoeff = coeff_4k_sb_1seg_dqpsk;
                                else    // QPSK or QAM
                                        ncoeff = coeff_4k_sb_1seg;
                        } else {        // 3-segments
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK) {        // DQPSK on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK) {        // DQPSK on external segments
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK) {
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK) {
                                                ncoeff = coeff_4k_sb_3seg_0dqpsk_1dqpsk;
                                        } else {        // QPSK or QAM on external segments
                                                ncoeff = coeff_4k_sb_3seg_0dqpsk;
                                        }
                                } else {        // QPSK or QAM on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK) {        // DQPSK on external segments
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK) {
                                                ncoeff = coeff_4k_sb_3seg_1dqpsk;
                                        } else  // QPSK or QAM on external segments
                                                ncoeff = coeff_4k_sb_3seg;
@@ -1403,20 +1412,20 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                case TRANSMISSION_MODE_AUTO:
                case TRANSMISSION_MODE_8K:
                default:
-                       if (state->fe.dtv_property_cache.isdbt_partial_reception == 0) {        // 1-seg
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK)  // DQPSK
+                       if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0) {
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK)
                                        ncoeff = coeff_8k_sb_1seg_dqpsk;
                                else    // QPSK or QAM
                                        ncoeff = coeff_8k_sb_1seg;
                        } else {        // 3-segments
-                               if (state->fe.dtv_property_cache.layer[0].modulation == DQPSK) {        // DQPSK on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK) {        // DQPSK on external segments
+                               if (state->fe[0]->dtv_property_cache.layer[0].modulation == DQPSK) {
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK) {
                                                ncoeff = coeff_8k_sb_3seg_0dqpsk_1dqpsk;
                                        } else {        // QPSK or QAM on external segments
                                                ncoeff = coeff_8k_sb_3seg_0dqpsk;
                                        }
                                } else {        // QPSK or QAM on central segment
-                                       if (state->fe.dtv_property_cache.layer[1].modulation == DQPSK) {        // DQPSK on external segments
+                                       if (state->fe[0]->dtv_property_cache.layer[1].modulation == DQPSK) {
                                                ncoeff = coeff_8k_sb_3seg_1dqpsk;
                                        } else  // QPSK or QAM on external segments
                                                ncoeff = coeff_8k_sb_3seg;
@@ -1430,22 +1439,22 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
 
        // P_small_coef_ext_enable=ISDB-Tsb, P_small_narrow_band=ISDB-Tsb, P_small_last_seg=13, P_small_offset_num_car=5
        dib8000_write_word(state, 351,
-                          (state->fe.dtv_property_cache.isdbt_sb_mode << 9) | (state->fe.dtv_property_cache.isdbt_sb_mode << 8) | (13 << 4) | 5);
+                               (state->fe[0]->dtv_property_cache.isdbt_sb_mode << 9) | (state->fe[0]->dtv_property_cache.isdbt_sb_mode << 8) | (13 << 4) | 5);
 
        // ---- COFF ----
        // Carloff, the most robust
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {  // Sound Broadcasting mode - use both TMCC and AC pilots
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
 
                // P_coff_cpil_alpha=4, P_coff_inh=0, P_coff_cpil_winlen=64
                // P_coff_narrow_band=1, P_coff_square_val=1, P_coff_one_seg=~partial_rcpt, P_coff_use_tmcc=1, P_coff_use_ac=1
                dib8000_write_word(state, 187,
-                                  (4 << 12) | (0 << 11) | (63 << 5) | (0x3 << 3) | ((~state->fe.dtv_property_cache.isdbt_partial_reception & 1) << 2)
-                                  | 0x3);
+                                       (4 << 12) | (0 << 11) | (63 << 5) | (0x3 << 3) | ((~state->fe[0]->dtv_property_cache.isdbt_partial_reception & 1) << 2)
+                                       | 0x3);
 
-/*             // P_small_coef_ext_enable = 1 */
-/*             dib8000_write_word(state, 351, dib8000_read_word(state, 351) | 0x200); */
+/*             // P_small_coef_ext_enable = 1 */
+/*             dib8000_write_word(state, 351, dib8000_read_word(state, 351) | 0x200); */
 
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 0) {        // Sound Broadcasting mode 1 seg
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0) {
 
                        // P_coff_winlen=63, P_coff_thres_lock=15, P_coff_one_seg_width= (P_mode == 3) , P_coff_one_seg_sym= (P_mode-1)
                        if (mode == 3)
@@ -1469,10 +1478,10 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                        dib8000_write_word(state, 186, 80);
                } else {        // Sound Broadcasting mode 3 seg
                        // P_coff_one_seg_sym= 1, P_coff_one_seg_width= 1, P_coff_winlen=63, P_coff_thres_lock=15
-                       /*                 if (mode == 3) */
-                       /*                     dib8000_write_word(state, 180, 0x2fca | ((0) << 14)); */
-                       /*                 else */
-                       /*                     dib8000_write_word(state, 180, 0x2fca | ((1) << 14)); */
+                       /*      if (mode == 3) */
+                       /*              dib8000_write_word(state, 180, 0x2fca | ((0) << 14)); */
+                       /*      else */
+                       /*              dib8000_write_word(state, 180, 0x2fca | ((1) << 14)); */
                        dib8000_write_word(state, 180, 0x1fcf | (1 << 14));
 
                        // P_ctrl_corm_thres4pre_freq_inh = 1, P_ctrl_pre_freq_mode_sat=1,
@@ -1509,7 +1518,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                dib8000_write_word(state, 341, (4 << 3) | (1 << 2) | (1 << 1) | (1 << 0));
        }
        // ---- FFT ----
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1 && state->fe.dtv_property_cache.isdbt_partial_reception == 0)       // 1-seg
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1 && state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0)
                dib8000_write_word(state, 178, 64);     // P_fft_powrange=64
        else
                dib8000_write_word(state, 178, 32);     // P_fft_powrange=32
@@ -1518,12 +1527,12 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
         * 6bits; p_coff_thres_lock 6bits (for coff lock if needed)
         */
        /* if ( ( nbseg_diff>0)&&(nbseg_diff<13))
-          dib8000_write_word(state, 187, (dib8000_read_word(state, 187) & 0xfffb) | (1 << 3)); */
+               dib8000_write_word(state, 187, (dib8000_read_word(state, 187) & 0xfffb) | (1 << 3)); */
 
        dib8000_write_word(state, 189, ~seg_mask13 | seg_diff_mask);    /* P_lmod4_seg_inh       */
        dib8000_write_word(state, 192, ~seg_mask13 | seg_diff_mask);    /* P_pha3_seg_inh        */
        dib8000_write_word(state, 225, ~seg_mask13 | seg_diff_mask);    /* P_tac_seg_inh         */
-       if ((!state->fe.dtv_property_cache.isdbt_sb_mode) && (state->cfg.pll->ifreq == 0))
+       if ((!state->fe[0]->dtv_property_cache.isdbt_sb_mode) && (state->cfg.pll->ifreq == 0))
                dib8000_write_word(state, 266, ~seg_mask13 | seg_diff_mask | 0x40);     /* P_equal_noise_seg_inh */
        else
                dib8000_write_word(state, 266, ~seg_mask13 | seg_diff_mask);    /* P_equal_noise_seg_inh */
@@ -1538,8 +1547,8 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        dib8000_write_word(state, 211, seg_mask13 & (~seg_diff_mask));  /* P_des_seg_enabled     */
 
        /* offset loop parameters */
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 0)  // Sound Broadcasting mode 1 seg
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0)
                        /* P_timf_alpha = (11-P_mode), P_corm_alpha=6, P_corm_thres=0x80 */
                        dib8000_write_word(state, 32, ((11 - mode) << 12) | (6 << 8) | 0x40);
 
@@ -1551,8 +1560,8 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                /* P_timf_alpha = (9-P_mode, P_corm_alpha=6, P_corm_thres=0x80 */
                dib8000_write_word(state, 32, ((9 - mode) << 12) | (6 << 8) | 0x80);
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 0)  // Sound Broadcasting mode 1 seg
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0)
                        /* P_ctrl_pha_off_max=3   P_ctrl_sfreq_inh =0  P_ctrl_sfreq_step = (11-P_mode)  */
                        dib8000_write_word(state, 37, (3 << 5) | (0 << 4) | (10 - mode));
 
@@ -1564,7 +1573,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
                dib8000_write_word(state, 37, (3 << 5) | (0 << 4) | (8 - mode));
 
        /* P_dvsy_sync_wait - reuse mode */
-       switch (state->fe.dtv_property_cache.transmission_mode) {
+       switch (state->fe[0]->dtv_property_cache.transmission_mode) {
        case TRANSMISSION_MODE_8K:
                mode = 256;
                break;
@@ -1624,15 +1633,15 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        }
 
        // ---- ANA_FE ----
-       if (state->fe.dtv_property_cache.isdbt_sb_mode) {
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 1)  // 3-segments
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 1)
                        ana_fe = ana_fe_coeff_3seg;
                else            // 1-segment
                        ana_fe = ana_fe_coeff_1seg;
        } else
                ana_fe = ana_fe_coeff_13seg;
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1 || state->isdbt_cfg_loaded == 0)
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1 || state->isdbt_cfg_loaded == 0)
                for (mode = 0; mode < 24; mode++)
                        dib8000_write_word(state, 117 + mode, ana_fe[mode]);
 
@@ -1648,11 +1657,11 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        // "P_cspu_left_edge"  not used => do not care
        // "P_cspu_right_edge" not used => do not care
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {  // ISDB-Tsb
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
                dib8000_write_word(state, 228, 1);      // P_2d_mode_byp=1
                dib8000_write_word(state, 205, dib8000_read_word(state, 205) & 0xfff0); // P_cspu_win_cut = 0
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 0   // 1-segment
-                   && state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_2K) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0
+                       && state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_2K) {
                        //dib8000_write_word(state, 219, dib8000_read_word(state, 219) & 0xfffe); // P_adp_pass = 0
                        dib8000_write_word(state, 265, 15);     // P_equal_noise_sel = 15
                }
@@ -1664,7 +1673,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        // ---- TMCC ----
        for (i = 0; i < 3; i++)
                tmcc_pow +=
-                   (((state->fe.dtv_property_cache.layer[i].modulation == DQPSK) * 4 + 1) * state->fe.dtv_property_cache.layer[i].segment_count);
+                       (((state->fe[0]->dtv_property_cache.layer[i].modulation == DQPSK) * 4 + 1) * state->fe[0]->dtv_property_cache.layer[i].segment_count);
        // Quantif of "P_tmcc_dec_thres_?k" is (0, 5+mode, 9);
        // Threshold is set at 1/4 of max power.
        tmcc_pow *= (1 << (9 - 2));
@@ -1678,7 +1687,7 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
        if (state->isdbt_cfg_loaded == 0)
                dib8000_write_word(state, 250, 3285);   /*p_2d_hspeed_thr0 */
 
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1)
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1)
                state->isdbt_cfg_loaded = 0;
        else
                state->isdbt_cfg_loaded = 1;
@@ -1693,38 +1702,38 @@ static int dib8000_autosearch_start(struct dvb_frontend *fe)
 
        int slist = 0;
 
-       state->fe.dtv_property_cache.inversion = 0;
-       if (!state->fe.dtv_property_cache.isdbt_sb_mode)
-               state->fe.dtv_property_cache.layer[0].segment_count = 13;
-       state->fe.dtv_property_cache.layer[0].modulation = QAM_64;
-       state->fe.dtv_property_cache.layer[0].fec = FEC_2_3;
-       state->fe.dtv_property_cache.layer[0].interleaving = 0;
+       state->fe[0]->dtv_property_cache.inversion = 0;
+       if (!state->fe[0]->dtv_property_cache.isdbt_sb_mode)
+               state->fe[0]->dtv_property_cache.layer[0].segment_count = 13;
+       state->fe[0]->dtv_property_cache.layer[0].modulation = QAM_64;
+       state->fe[0]->dtv_property_cache.layer[0].fec = FEC_2_3;
+       state->fe[0]->dtv_property_cache.layer[0].interleaving = 0;
 
        //choose the right list, in sb, always do everything
-       if (state->fe.dtv_property_cache.isdbt_sb_mode) {
-               state->fe.dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
-               state->fe.dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode) {
+               state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
+               state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
                slist = 7;
                dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13));
        } else {
-               if (state->fe.dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO) {
-                       if (state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) {
+               if (state->fe[0]->dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO) {
+                       if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) {
                                slist = 7;
                                dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13));       // P_mode = 1 to have autosearch start ok with mode2
                        } else
                                slist = 3;
                } else {
-                       if (state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) {
+                       if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) {
                                slist = 2;
                                dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x9fff) | (1 << 13));       // P_mode = 1
                        } else
                                slist = 0;
                }
 
-               if (state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO)
-                       state->fe.dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
-               if (state->fe.dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO)
-                       state->fe.dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
+               if (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO)
+                       state->fe[0]->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_8K;
+               if (state->fe[0]->dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO)
+                       state->fe[0]->dtv_property_cache.guard_interval = GUARD_INTERVAL_1_8;
 
                dprintk("using list for autosearch : %d", slist);
                dib8000_set_channel(state, (unsigned char)slist, 1);
@@ -1786,7 +1795,7 @@ static int dib8000_tune(struct dvb_frontend *fe)
        if (state == NULL)
                return -EINVAL;
 
-       dib8000_set_bandwidth(state, state->fe.dtv_property_cache.bandwidth_hz / 1000);
+       dib8000_set_bandwidth(fe, state->fe[0]->dtv_property_cache.bandwidth_hz / 1000);
        dib8000_set_channel(state, 0, 0);
 
        // restart demod
@@ -1799,17 +1808,16 @@ static int dib8000_tune(struct dvb_frontend *fe)
 
        // never achieved a lock before - wait for timfreq to update
        if (state->timf == 0) {
-               if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {
-                       if (state->fe.dtv_property_cache.isdbt_partial_reception == 0)  // Sound Broadcasting mode 1 seg
+               if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+                       if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0)
                                msleep(300);
                        else    // Sound Broadcasting mode 3 seg
                                msleep(500);
                } else          // 13 seg
                        msleep(200);
        }
-       //dump_reg(state);
-       if (state->fe.dtv_property_cache.isdbt_sb_mode == 1) {
-               if (state->fe.dtv_property_cache.isdbt_partial_reception == 0) {        // Sound Broadcasting mode 1 seg
+       if (state->fe[0]->dtv_property_cache.isdbt_sb_mode == 1) {
+               if (state->fe[0]->dtv_property_cache.isdbt_partial_reception == 0) {
 
                        /* P_timf_alpha = (13-P_mode) , P_corm_alpha=6, P_corm_thres=0x40  alpha to check on board */
                        dib8000_write_word(state, 32, ((13 - mode) << 12) | (6 << 8) | 0x40);
@@ -1854,26 +1862,38 @@ static int dib8000_tune(struct dvb_frontend *fe)
 static int dib8000_wakeup(struct dvb_frontend *fe)
 {
        struct dib8000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       int ret;
 
        dib8000_set_power_mode(state, DIB8000M_POWER_ALL);
        dib8000_set_adc_state(state, DIBX000_ADC_ON);
        if (dib8000_set_adc_state(state, DIBX000_SLOW_ADC_ON) != 0)
                dprintk("could not start Slow ADC");
 
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               ret = state->fe[index_frontend]->ops.init(state->fe[index_frontend]);
+               if (ret < 0)
+                       return ret;
+       }
+
        return 0;
 }
 
 static int dib8000_sleep(struct dvb_frontend *fe)
 {
-       struct dib8000_state *st = fe->demodulator_priv;
-       if (1) {
-               dib8000_set_output_mode(st, OUTMODE_HIGH_Z);
-               dib8000_set_power_mode(st, DIB8000M_POWER_INTERFACE_ONLY);
-               return dib8000_set_adc_state(st, DIBX000_SLOW_ADC_OFF) | dib8000_set_adc_state(st, DIBX000_ADC_OFF);
-       } else {
+       struct dib8000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       int ret;
 
-               return 0;
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               ret = state->fe[index_frontend]->ops.sleep(state->fe[index_frontend]);
+               if (ret < 0)
+                       return ret;
        }
+
+       dib8000_set_output_mode(fe, OUTMODE_HIGH_Z);
+       dib8000_set_power_mode(state, DIB8000M_POWER_INTERFACE_ONLY);
+       return dib8000_set_adc_state(state, DIBX000_SLOW_ADC_OFF) | dib8000_set_adc_state(state, DIBX000_ADC_OFF);
 }
 
 enum frontend_tune_state dib8000_get_tune_state(struct dvb_frontend *fe)
@@ -1891,16 +1911,40 @@ int dib8000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tun
 }
 EXPORT_SYMBOL(dib8000_set_tune_state);
 
-
-
-
 static int dib8000_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
 {
        struct dib8000_state *state = fe->demodulator_priv;
        u16 i, val = 0;
+       fe_status_t stat;
+       u8 index_frontend, sub_index_frontend;
 
        fe->dtv_property_cache.bandwidth_hz = 6000000;
 
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->ops.read_status(state->fe[index_frontend], &stat);
+               if (stat&FE_HAS_SYNC) {
+                       dprintk("TMCC lock on the slave%i", index_frontend);
+                       /* synchronize the cache with the other frontends */
+                       state->fe[index_frontend]->ops.get_frontend(state->fe[index_frontend], fep);
+                       for (sub_index_frontend = 0; (sub_index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[sub_index_frontend] != NULL); sub_index_frontend++) {
+                               if (sub_index_frontend != index_frontend) {
+                                       state->fe[sub_index_frontend]->dtv_property_cache.isdbt_sb_mode = state->fe[index_frontend]->dtv_property_cache.isdbt_sb_mode;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.inversion = state->fe[index_frontend]->dtv_property_cache.inversion;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.transmission_mode = state->fe[index_frontend]->dtv_property_cache.transmission_mode;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.guard_interval = state->fe[index_frontend]->dtv_property_cache.guard_interval;
+                                       state->fe[sub_index_frontend]->dtv_property_cache.isdbt_partial_reception = state->fe[index_frontend]->dtv_property_cache.isdbt_partial_reception;
+                                       for (i = 0; i < 3; i++) {
+                                               state->fe[sub_index_frontend]->dtv_property_cache.layer[i].segment_count = state->fe[index_frontend]->dtv_property_cache.layer[i].segment_count;
+                                               state->fe[sub_index_frontend]->dtv_property_cache.layer[i].interleaving = state->fe[index_frontend]->dtv_property_cache.layer[i].interleaving;
+                                               state->fe[sub_index_frontend]->dtv_property_cache.layer[i].fec = state->fe[index_frontend]->dtv_property_cache.layer[i].fec;
+                                               state->fe[sub_index_frontend]->dtv_property_cache.layer[i].modulation = state->fe[index_frontend]->dtv_property_cache.layer[i].modulation;
+                                       }
+                               }
+                       }
+                       return 0;
+               }
+       }
+
        fe->dtv_property_cache.isdbt_sb_mode = dib8000_read_word(state, 508) & 0x1;
 
        val = dib8000_read_word(state, 570);
@@ -1992,112 +2036,200 @@ static int dib8000_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_par
                        break;
                }
        }
+
+       /* synchronize the cache with the other frontends */
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->dtv_property_cache.isdbt_sb_mode = fe->dtv_property_cache.isdbt_sb_mode;
+               state->fe[index_frontend]->dtv_property_cache.inversion = fe->dtv_property_cache.inversion;
+               state->fe[index_frontend]->dtv_property_cache.transmission_mode = fe->dtv_property_cache.transmission_mode;
+               state->fe[index_frontend]->dtv_property_cache.guard_interval = fe->dtv_property_cache.guard_interval;
+               state->fe[index_frontend]->dtv_property_cache.isdbt_partial_reception = fe->dtv_property_cache.isdbt_partial_reception;
+               for (i = 0; i < 3; i++) {
+                       state->fe[index_frontend]->dtv_property_cache.layer[i].segment_count = fe->dtv_property_cache.layer[i].segment_count;
+                       state->fe[index_frontend]->dtv_property_cache.layer[i].interleaving = fe->dtv_property_cache.layer[i].interleaving;
+                       state->fe[index_frontend]->dtv_property_cache.layer[i].fec = fe->dtv_property_cache.layer[i].fec;
+                       state->fe[index_frontend]->dtv_property_cache.layer[i].modulation = fe->dtv_property_cache.layer[i].modulation;
+               }
+       }
        return 0;
 }
 
 static int dib8000_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
 {
        struct dib8000_state *state = fe->demodulator_priv;
+       u8 nbr_pending, exit_condition, index_frontend;
+       s8 index_frontend_success = -1;
        int time, ret;
+       int  time_slave = FE_CALLBACK_TIME_NEVER;
 
-       fe->dtv_property_cache.delivery_system = SYS_ISDBT;
+       if (state->fe[0]->dtv_property_cache.frequency == 0) {
+               dprintk("dib8000: must at least specify frequency ");
+               return 0;
+       }
 
-       dib8000_set_output_mode(state, OUTMODE_HIGH_Z);
+       if (state->fe[0]->dtv_property_cache.bandwidth_hz == 0) {
+               dprintk("dib8000: no bandwidth specified, set to default ");
+               state->fe[0]->dtv_property_cache.bandwidth_hz = 6000000;
+       }
+
+       for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               /* synchronization of the cache */
+               state->fe[index_frontend]->dtv_property_cache.delivery_system = SYS_ISDBT;
+               memcpy(&state->fe[index_frontend]->dtv_property_cache, &fe->dtv_property_cache, sizeof(struct dtv_frontend_properties));
+
+               dib8000_set_output_mode(state->fe[index_frontend], OUTMODE_HIGH_Z);
+               if (state->fe[index_frontend]->ops.tuner_ops.set_params)
+                       state->fe[index_frontend]->ops.tuner_ops.set_params(state->fe[index_frontend], fep);
 
-       if (fe->ops.tuner_ops.set_params)
-               fe->ops.tuner_ops.set_params(fe, fep);
+               dib8000_set_tune_state(state->fe[index_frontend], CT_AGC_START);
+       }
 
        /* start up the AGC */
-       state->tune_state = CT_AGC_START;
        do {
-               time = dib8000_agc_startup(fe);
+               time = dib8000_agc_startup(state->fe[0]);
+               for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       time_slave = dib8000_agc_startup(state->fe[index_frontend]);
+                       if (time == FE_CALLBACK_TIME_NEVER)
+                               time = time_slave;
+                       else if ((time_slave != FE_CALLBACK_TIME_NEVER) && (time_slave > time))
+                               time = time_slave;
+               }
                if (time != FE_CALLBACK_TIME_NEVER)
                        msleep(time / 10);
                else
                        break;
-       } while (state->tune_state != CT_AGC_STOP);
-
-       if (state->fe.dtv_property_cache.frequency == 0) {
-               dprintk("dib8000: must at least specify frequency ");
-               return 0;
-       }
-
-       if (state->fe.dtv_property_cache.bandwidth_hz == 0) {
-               dprintk("dib8000: no bandwidth specified, set to default ");
-               state->fe.dtv_property_cache.bandwidth_hz = 6000000;
-       }
+               exit_condition = 1;
+               for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       if (dib8000_get_tune_state(state->fe[index_frontend]) != CT_AGC_STOP) {
+                               exit_condition = 0;
+                               break;
+                       }
+               }
+       } while (exit_condition == 0);
+
+       for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               dib8000_set_tune_state(state->fe[index_frontend], CT_DEMOD_START);
+
+       if ((state->fe[0]->dtv_property_cache.delivery_system != SYS_ISDBT) ||
+                       (state->fe[0]->dtv_property_cache.inversion == INVERSION_AUTO) ||
+                       (state->fe[0]->dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) ||
+                       (state->fe[0]->dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO) ||
+                       (((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (1 << 0)) != 0) &&
+                        (state->fe[0]->dtv_property_cache.layer[0].segment_count != 0xff) &&
+                        (state->fe[0]->dtv_property_cache.layer[0].segment_count != 0) &&
+                        ((state->fe[0]->dtv_property_cache.layer[0].modulation == QAM_AUTO) ||
+                         (state->fe[0]->dtv_property_cache.layer[0].fec == FEC_AUTO))) ||
+                       (((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (1 << 1)) != 0) &&
+                        (state->fe[0]->dtv_property_cache.layer[1].segment_count != 0xff) &&
+                        (state->fe[0]->dtv_property_cache.layer[1].segment_count != 0) &&
+                        ((state->fe[0]->dtv_property_cache.layer[1].modulation == QAM_AUTO) ||
+                         (state->fe[0]->dtv_property_cache.layer[1].fec == FEC_AUTO))) ||
+                       (((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (1 << 2)) != 0) &&
+                        (state->fe[0]->dtv_property_cache.layer[2].segment_count != 0xff) &&
+                        (state->fe[0]->dtv_property_cache.layer[2].segment_count != 0) &&
+                        ((state->fe[0]->dtv_property_cache.layer[2].modulation == QAM_AUTO) ||
+                         (state->fe[0]->dtv_property_cache.layer[2].fec == FEC_AUTO))) ||
+                       (((state->fe[0]->dtv_property_cache.layer[0].segment_count == 0) ||
+                         ((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (1 << 0)) == 0)) &&
+                        ((state->fe[0]->dtv_property_cache.layer[1].segment_count == 0) ||
+                         ((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (2 << 0)) == 0)) &&
+                        ((state->fe[0]->dtv_property_cache.layer[2].segment_count == 0) || ((state->fe[0]->dtv_property_cache.isdbt_layer_enabled & (3 << 0)) == 0)))) {
+               int i = 80000;
+               u8 found = 0;
+               u8 tune_failed = 0;
+
+               for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                       dib8000_set_bandwidth(state->fe[index_frontend], fe->dtv_property_cache.bandwidth_hz / 1000);
+                       dib8000_autosearch_start(state->fe[index_frontend]);
+               }
 
-       state->tune_state = CT_DEMOD_START;
-
-       if ((state->fe.dtv_property_cache.delivery_system != SYS_ISDBT) ||
-           (state->fe.dtv_property_cache.inversion == INVERSION_AUTO) ||
-           (state->fe.dtv_property_cache.transmission_mode == TRANSMISSION_MODE_AUTO) ||
-           (state->fe.dtv_property_cache.guard_interval == GUARD_INTERVAL_AUTO) ||
-           (((state->fe.dtv_property_cache.isdbt_layer_enabled & (1 << 0)) != 0) &&
-            (state->fe.dtv_property_cache.layer[0].segment_count != 0xff) &&
-            (state->fe.dtv_property_cache.layer[0].segment_count != 0) &&
-            ((state->fe.dtv_property_cache.layer[0].modulation == QAM_AUTO) ||
-             (state->fe.dtv_property_cache.layer[0].fec == FEC_AUTO))) ||
-           (((state->fe.dtv_property_cache.isdbt_layer_enabled & (1 << 1)) != 0) &&
-            (state->fe.dtv_property_cache.layer[1].segment_count != 0xff) &&
-            (state->fe.dtv_property_cache.layer[1].segment_count != 0) &&
-            ((state->fe.dtv_property_cache.layer[1].modulation == QAM_AUTO) ||
-             (state->fe.dtv_property_cache.layer[1].fec == FEC_AUTO))) ||
-           (((state->fe.dtv_property_cache.isdbt_layer_enabled & (1 << 2)) != 0) &&
-            (state->fe.dtv_property_cache.layer[2].segment_count != 0xff) &&
-            (state->fe.dtv_property_cache.layer[2].segment_count != 0) &&
-            ((state->fe.dtv_property_cache.layer[2].modulation == QAM_AUTO) ||
-             (state->fe.dtv_property_cache.layer[2].fec == FEC_AUTO))) ||
-           (((state->fe.dtv_property_cache.layer[0].segment_count == 0) ||
-             ((state->fe.dtv_property_cache.isdbt_layer_enabled & (1 << 0)) == 0)) &&
-            ((state->fe.dtv_property_cache.layer[1].segment_count == 0) ||
-             ((state->fe.dtv_property_cache.isdbt_layer_enabled & (2 << 0)) == 0)) &&
-            ((state->fe.dtv_property_cache.layer[2].segment_count == 0) || ((state->fe.dtv_property_cache.isdbt_layer_enabled & (3 << 0)) == 0)))) {
-               int i = 800, found;
-
-               dib8000_set_bandwidth(state, fe->dtv_property_cache.bandwidth_hz / 1000);
-               dib8000_autosearch_start(fe);
                do {
-                       msleep(10);
-                       found = dib8000_autosearch_irq(fe);
-               } while (found == 0 && i--);
+                       msleep(20);
+                       nbr_pending = 0;
+                       exit_condition = 0; /* 0: tune pending; 1: tune failed; 2:tune success */
+                       for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+                               if (((tune_failed >> index_frontend) & 0x1) == 0) {
+                                       found = dib8000_autosearch_irq(state->fe[index_frontend]);
+                                       switch (found) {
+                                       case 0: /* tune pending */
+                                                nbr_pending++;
+                                                break;
+                                       case 2:
+                                                dprintk("autosearch succeed on the frontend%i", index_frontend);
+                                                exit_condition = 2;
+                                                index_frontend_success = index_frontend;
+                                                break;
+                                       default:
+                                                dprintk("unhandled autosearch result");
+                                       case 1:
+                                                dprintk("autosearch failed for the frontend%i", index_frontend);
+                                                break;
+                                       }
+                               }
+                       }
 
-               dprintk("Frequency %d Hz, autosearch returns: %d", fep->frequency, found);
+                       /* if all tune are done and no success, exit: tune failed */
+                       if ((nbr_pending == 0) && (exit_condition == 0))
+                               exit_condition = 1;
+               } while ((exit_condition == 0) && i--);
 
-               if (found == 0 || found == 1)
-                       return 0;       // no channel found
+               if (exit_condition == 1) { /* tune failed */
+                       dprintk("tune failed");
+                       return 0;
+               }
+
+               dprintk("tune success on frontend%i", index_frontend_success);
 
                dib8000_get_frontend(fe, fep);
        }
 
-       ret = dib8000_tune(fe);
+       for (index_frontend = 0, ret = 0; (ret >= 0) && (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               ret = dib8000_tune(state->fe[index_frontend]);
+
+       /* set output mode and diversity input */
+       dib8000_set_output_mode(state->fe[0], state->cfg.output_mode);
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               dib8000_set_output_mode(state->fe[index_frontend], OUTMODE_DIVERSITY);
+               dib8000_set_diversity_in(state->fe[index_frontend-1], 1);
+       }
 
-       /* make this a config parameter */
-       dib8000_set_output_mode(state, state->cfg.output_mode);
+       /* turn off the diversity of the last chip */
+       dib8000_set_diversity_in(state->fe[index_frontend-1], 0);
 
        return ret;
 }
 
+static u16 dib8000_read_lock(struct dvb_frontend *fe)
+{
+       struct dib8000_state *state = fe->demodulator_priv;
+
+       return dib8000_read_word(state, 568);
+}
+
 static int dib8000_read_status(struct dvb_frontend *fe, fe_status_t * stat)
 {
        struct dib8000_state *state = fe->demodulator_priv;
-       u16 lock = dib8000_read_word(state, 568);
+       u16 lock_slave = 0, lock = dib8000_read_word(state, 568);
+       u8 index_frontend;
+
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               lock_slave |= dib8000_read_lock(state->fe[index_frontend]);
 
        *stat = 0;
 
-       if ((lock >> 13) & 1)
+       if (((lock >> 13) & 1) || ((lock_slave >> 13) & 1))
                *stat |= FE_HAS_SIGNAL;
 
-       if ((lock >> 8) & 1) /* Equal */
+       if (((lock >> 8) & 1) || ((lock_slave >> 8) & 1)) /* Equal */
                *stat |= FE_HAS_CARRIER;
 
-       if (((lock >> 1) & 0xf) == 0xf) /* TMCC_SYNC */
+       if ((((lock >> 1) & 0xf) == 0xf) || (((lock_slave >> 1) & 0xf) == 0xf)) /* TMCC_SYNC */
                *stat |= FE_HAS_SYNC;
 
-       if (((lock >> 12) & 1) && ((lock >> 5) & 7)) /* FEC MPEG */
+       if ((((lock >> 12) & 1) || ((lock_slave >> 12) & 1)) && ((lock >> 5) & 7)) /* FEC MPEG */
                *stat |= FE_HAS_LOCK;
 
-       if ((lock >> 12) & 1) {
+       if (((lock >> 12) & 1) || ((lock_slave >> 12) & 1)) {
                lock = dib8000_read_word(state, 554); /* Viterbi Layer A */
                if (lock & 0x01)
                        *stat |= FE_HAS_VITERBI;
@@ -2131,44 +2263,120 @@ static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
 static int dib8000_read_signal_strength(struct dvb_frontend *fe, u16 * strength)
 {
        struct dib8000_state *state = fe->demodulator_priv;
-       u16 val = dib8000_read_word(state, 390);
-       *strength = 65535 - val;
+       u8 index_frontend;
+       u16 val;
+
+       *strength = 0;
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+               state->fe[index_frontend]->ops.read_signal_strength(state->fe[index_frontend], &val);
+               if (val > 65535 - *strength)
+                       *strength = 65535;
+               else
+                       *strength += val;
+       }
+
+       val = 65535 - dib8000_read_word(state, 390);
+       if (val > 65535 - *strength)
+               *strength = 65535;
+       else
+               *strength += val;
        return 0;
 }
 
-static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr)
+static u32 dib8000_get_snr(struct dvb_frontend *fe)
 {
        struct dib8000_state *state = fe->demodulator_priv;
+       u32 n, s, exp;
        u16 val;
-       s32 signal_mant, signal_exp, noise_mant, noise_exp;
-       u32 result = 0;
 
        val = dib8000_read_word(state, 542);
-       noise_mant = (val >> 6) & 0xff;
-       noise_exp = (val & 0x3f);
+       n = (val >> 6) & 0xff;
+       exp = (val & 0x3f);
+       if ((exp & 0x20) != 0)
+               exp -= 0x40;
+       n <<= exp+16;
 
        val = dib8000_read_word(state, 543);
-       signal_mant = (val >> 6) & 0xff;
-       signal_exp = (val & 0x3f);
+       s = (val >> 6) & 0xff;
+       exp = (val & 0x3f);
+       if ((exp & 0x20) != 0)
+               exp -= 0x40;
+       s <<= exp+16;
+
+       if (n > 0) {
+               u32 t = (s/n) << 16;
+               return t + ((s << 16) - n*t) / n;
+       }
+       return 0xffffffff;
+}
 
-       if ((noise_exp & 0x20) != 0)
-               noise_exp -= 0x40;
-       if ((signal_exp & 0x20) != 0)
-               signal_exp -= 0x40;
+static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr)
+{
+       struct dib8000_state *state = fe->demodulator_priv;
+       u8 index_frontend;
+       u32 snr_master;
 
-       if (signal_mant != 0)
-               result = intlog10(2) * 10 * signal_exp + 10 * intlog10(signal_mant);
-       else
-               result = intlog10(2) * 10 * signal_exp - 100;
-       if (noise_mant != 0)
-               result -= intlog10(2) * 10 * noise_exp + 10 * intlog10(noise_mant);
+       snr_master = dib8000_get_snr(fe);
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++)
+               snr_master += dib8000_get_snr(state->fe[index_frontend]);
+
+       if (snr_master != 0) {
+               snr_master = 10*intlog10(snr_master>>16);
+               *snr = snr_master / ((1 << 24) / 10);
+       }
        else
-               result -= intlog10(2) * 10 * noise_exp - 100;
+               *snr = 0;
 
-       *snr = result / ((1 << 24) / 10);
        return 0;
 }
 
+int dib8000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave)
+{
+       struct dib8000_state *state = fe->demodulator_priv;
+       u8 index_frontend = 1;
+
+       while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+               index_frontend++;
+       if (index_frontend < MAX_NUMBER_OF_FRONTENDS) {
+               dprintk("set slave fe %p to index %i", fe_slave, index_frontend);
+               state->fe[index_frontend] = fe_slave;
+               return 0;
+       }
+
+       dprintk("too many slave frontend");
+       return -ENOMEM;
+}
+EXPORT_SYMBOL(dib8000_set_slave_frontend);
+
+int dib8000_remove_slave_frontend(struct dvb_frontend *fe)
+{
+       struct dib8000_state *state = fe->demodulator_priv;
+       u8 index_frontend = 1;
+
+       while ((index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL))
+               index_frontend++;
+       if (index_frontend != 1) {
+               dprintk("remove slave fe %p (index %i)", state->fe[index_frontend-1], index_frontend-1);
+               state->fe[index_frontend] = NULL;
+               return 0;
+       }
+
+       dprintk("no frontend to be removed");
+       return -ENODEV;
+}
+EXPORT_SYMBOL(dib8000_remove_slave_frontend);
+
+struct dvb_frontend *dib8000_get_slave_frontend(struct dvb_frontend *fe, int slave_index)
+{
+       struct dib8000_state *state = fe->demodulator_priv;
+
+       if (slave_index >= MAX_NUMBER_OF_FRONTENDS)
+               return NULL;
+       return state->fe[slave_index];
+}
+EXPORT_SYMBOL(dib8000_get_slave_frontend);
+
+
 int dib8000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods, u8 default_addr, u8 first_addr)
 {
        int k = 0;
@@ -2227,7 +2435,13 @@ static int dib8000_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_fron
 static void dib8000_release(struct dvb_frontend *fe)
 {
        struct dib8000_state *st = fe->demodulator_priv;
+       u8 index_frontend;
+
+       for (index_frontend = 1; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (st->fe[index_frontend] != NULL); index_frontend++)
+               dvb_frontend_detach(st->fe[index_frontend]);
+
        dibx000_exit_i2c_master(&st->i2c_master);
+       kfree(st->fe[0]);
        kfree(st);
 }
 
@@ -2242,19 +2456,19 @@ EXPORT_SYMBOL(dib8000_get_i2c_master);
 int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
 {
        struct dib8000_state *st = fe->demodulator_priv;
-    u16 val = dib8000_read_word(st, 299) & 0xffef;
-    val |= (onoff & 0x1) << 4;
+       u16 val = dib8000_read_word(st, 299) & 0xffef;
+       val |= (onoff & 0x1) << 4;
 
-    dprintk("pid filter enabled %d", onoff);
-    return dib8000_write_word(st, 299, val);
+       dprintk("pid filter enabled %d", onoff);
+       return dib8000_write_word(st, 299, val);
 }
 EXPORT_SYMBOL(dib8000_pid_filter_ctrl);
 
 int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
 {
        struct dib8000_state *st = fe->demodulator_priv;
-    dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff);
-    return dib8000_write_word(st, 305 + id, onoff ? (1 << 13) | pid : 0);
+       dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff);
+       return dib8000_write_word(st, 305 + id, onoff ? (1 << 13) | pid : 0);
 }
 EXPORT_SYMBOL(dib8000_pid_filter);
 
@@ -2298,6 +2512,9 @@ struct dvb_frontend *dib8000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, s
        state = kzalloc(sizeof(struct dib8000_state), GFP_KERNEL);
        if (state == NULL)
                return NULL;
+       fe = kzalloc(sizeof(struct dvb_frontend), GFP_KERNEL);
+       if (fe == NULL)
+               goto error;
 
        memcpy(&state->cfg, cfg, sizeof(struct dib8000_config));
        state->i2c.adap = i2c_adap;
@@ -2311,9 +2528,9 @@ struct dvb_frontend *dib8000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, s
        if ((state->cfg.output_mode != OUTMODE_MPEG2_SERIAL) && (state->cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
                state->cfg.output_mode = OUTMODE_MPEG2_FIFO;
 
-       fe = &state->fe;
+       state->fe[0] = fe;
        fe->demodulator_priv = state;
-       memcpy(&state->fe.ops, &dib8000_ops, sizeof(struct dvb_frontend_ops));
+       memcpy(&state->fe[0]->ops, &dib8000_ops, sizeof(struct dvb_frontend_ops));
 
        state->timf_default = cfg->pll->timf;