/*
 *  Driver for the Conexant CX23885 PCIe bridge
 *
 *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/kthread.h>
#include <linux/file.h>
#include <linux/suspend.h>

#include "cx23885.h"
#include <media/v4l2-common.h>

#include "dvb_ca_en50221.h"
#include "s5h1409.h"
#include "s5h1411.h"
#include "mt2131.h"
#include "tda8290.h"
#include "tda18271.h"
#include "lgdt330x.h"
#include "xc4000.h"
#include "xc5000.h"
#include "max2165.h"
#include "tda10048.h"
#include "tuner-xc2028.h"
#include "tuner-simple.h"
#include "dib7000p.h"
#include "dibx000_common.h"
#include "zl10353.h"
#include "stv0900.h"
#include "stv0900_reg.h"
#include "stv6110.h"
#include "lnbh24.h"
#include "cx24116.h"
#include "cimax2.h"
#include "lgs8gxx.h"
#include "netup-eeprom.h"
#include "netup-init.h"
#include "lgdt3305.h"
#include "atbm8830.h"
#include "ts2020.h"
#include "ds3000.h"
#include "cx23885-f300.h"
#include "altera-ci.h"
#include "stv0367.h"
#include "drxk.h"
#include "mt2063.h"
#include "stv090x.h"
#include "stb6100.h"
#include "stb6100_cfg.h"
#include "tda10071.h"
#include "a8293.h"
#include "mb86a20s.h"

static unsigned int debug;

#define dprintk(level, fmt, arg...)\
        do { if (debug >= level)\
                printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
        } while (0)

/* ------------------------------------------------------------------ */

static unsigned int alt_tuner;
module_param(alt_tuner, int, 0644);
MODULE_PARM_DESC(alt_tuner, "Enable alternate tuner configuration");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

/* ------------------------------------------------------------------ */

static int dvb_buf_setup(struct videobuf_queue *q,
                         unsigned int *count, unsigned int *size)
{
        struct cx23885_tsport *port = q->priv_data;

        port->ts_packet_size  = 188 * 4;
        port->ts_packet_count = 32;

        *size  = port->ts_packet_size * port->ts_packet_count;
        *count = 32;
        return 0;
}

static int dvb_buf_prepare(struct videobuf_queue *q,
                           struct videobuf_buffer *vb, enum v4l2_field field)
{
        struct cx23885_tsport *port = q->priv_data;
        return cx23885_buf_prepare(q, port, (struct cx23885_buffer *)vb, field);
}

static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
        struct cx23885_tsport *port = q->priv_data;
        cx23885_buf_queue(port, (struct cx23885_buffer *)vb);
}

static void dvb_buf_release(struct videobuf_queue *q,
                            struct videobuf_buffer *vb)
{
        cx23885_free_buffer(q, (struct cx23885_buffer *)vb);
}

static void cx23885_dvb_gate_ctrl(struct cx23885_tsport  *port, int open)
{
        struct videobuf_dvb_frontends *f;
        struct videobuf_dvb_frontend *fe;

        f = &port->frontends;

        if (f->gate <= 1) /* undefined or fe0 */
                fe = videobuf_dvb_get_frontend(f, 1);
        else
                fe = videobuf_dvb_get_frontend(f, f->gate);

        if (fe && fe->dvb.frontend && fe->dvb.frontend->ops.i2c_gate_ctrl)
                fe->dvb.frontend->ops.i2c_gate_ctrl(fe->dvb.frontend, open);
}

static struct videobuf_queue_ops dvb_qops = {
        .buf_setup    = dvb_buf_setup,
        .buf_prepare  = dvb_buf_prepare,
        .buf_queue    = dvb_buf_queue,
        .buf_release  = dvb_buf_release,
};

static struct s5h1409_config hauppauge_generic_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_ON,
        .qam_if        = 44000,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct tda10048_config hauppauge_hvr1200_config = {
        .demod_address    = 0x10 >> 1,
        .output_mode      = TDA10048_SERIAL_OUTPUT,
        .fwbulkwritelen   = TDA10048_BULKWRITE_200,
        .inversion        = TDA10048_INVERSION_ON,
        .dtv6_if_freq_khz = TDA10048_IF_3300,
        .dtv7_if_freq_khz = TDA10048_IF_3800,
        .dtv8_if_freq_khz = TDA10048_IF_4300,
        .clk_freq_khz     = TDA10048_CLK_16000,
};

static struct tda10048_config hauppauge_hvr1210_config = {
        .demod_address    = 0x10 >> 1,
        .output_mode      = TDA10048_SERIAL_OUTPUT,
        .fwbulkwritelen   = TDA10048_BULKWRITE_200,
        .inversion        = TDA10048_INVERSION_ON,
        .dtv6_if_freq_khz = TDA10048_IF_3300,
        .dtv7_if_freq_khz = TDA10048_IF_3500,
        .dtv8_if_freq_khz = TDA10048_IF_4000,
        .clk_freq_khz     = TDA10048_CLK_16000,
};

static struct s5h1409_config hauppauge_ezqam_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_OFF,
        .qam_if        = 4000,
        .inversion     = S5H1409_INVERSION_ON,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct s5h1409_config hauppauge_hvr1800lp_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_OFF,
        .qam_if        = 44000,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct s5h1409_config hauppauge_hvr1500_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_OFF,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct mt2131_config hauppauge_generic_tunerconfig = {
        0x61
};

static struct lgdt330x_config fusionhdtv_5_express = {
        .demod_address = 0x0e,
        .demod_chip = LGDT3303,
        .serial_mpeg = 0x40,
};

static struct s5h1409_config hauppauge_hvr1500q_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_ON,
        .qam_if        = 44000,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct s5h1409_config dvico_s5h1409_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_SERIAL_OUTPUT,
        .gpio          = S5H1409_GPIO_ON,
        .qam_if        = 44000,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct s5h1411_config dvico_s5h1411_config = {
        .output_mode   = S5H1411_SERIAL_OUTPUT,
        .gpio          = S5H1411_GPIO_ON,
        .qam_if        = S5H1411_IF_44000,
        .vsb_if        = S5H1411_IF_44000,
        .inversion     = S5H1411_INVERSION_OFF,
        .status_mode   = S5H1411_DEMODLOCKING,
        .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct s5h1411_config hcw_s5h1411_config = {
        .output_mode   = S5H1411_SERIAL_OUTPUT,
        .gpio          = S5H1411_GPIO_OFF,
        .vsb_if        = S5H1411_IF_44000,
        .qam_if        = S5H1411_IF_4000,
        .inversion     = S5H1411_INVERSION_ON,
        .status_mode   = S5H1411_DEMODLOCKING,
        .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

static struct xc5000_config hauppauge_hvr1500q_tunerconfig = {
        .i2c_address      = 0x61,
        .if_khz           = 5380,
};

static struct xc5000_config dvico_xc5000_tunerconfig = {
        .i2c_address      = 0x64,
        .if_khz           = 5380,
};

static struct tda829x_config tda829x_no_probe = {
        .probe_tuner = TDA829X_DONT_PROBE,
};

static struct tda18271_std_map hauppauge_tda18271_std_map = {
        .atsc_6   = { .if_freq = 5380, .agc_mode = 3, .std = 3,
                      .if_lvl = 6, .rfagc_top = 0x37 },
        .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
                      .if_lvl = 6, .rfagc_top = 0x37 },
};

static struct tda18271_std_map hauppauge_hvr1200_tda18271_std_map = {
        .dvbt_6   = { .if_freq = 3300, .agc_mode = 3, .std = 4,
                      .if_lvl = 1, .rfagc_top = 0x37, },
        .dvbt_7   = { .if_freq = 3800, .agc_mode = 3, .std = 5,
                      .if_lvl = 1, .rfagc_top = 0x37, },
        .dvbt_8   = { .if_freq = 4300, .agc_mode = 3, .std = 6,
                      .if_lvl = 1, .rfagc_top = 0x37, },
};

static struct tda18271_config hauppauge_tda18271_config = {
        .std_map = &hauppauge_tda18271_std_map,
        .gate    = TDA18271_GATE_ANALOG,
        .output_opt = TDA18271_OUTPUT_LT_OFF,
};

static struct tda18271_config hauppauge_hvr1200_tuner_config = {
        .std_map = &hauppauge_hvr1200_tda18271_std_map,
        .gate    = TDA18271_GATE_ANALOG,
        .output_opt = TDA18271_OUTPUT_LT_OFF,
};

static struct tda18271_config hauppauge_hvr1210_tuner_config = {
        .gate    = TDA18271_GATE_DIGITAL,
        .output_opt = TDA18271_OUTPUT_LT_OFF,
};

static struct tda18271_std_map hauppauge_hvr127x_std_map = {
        .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
                      .if_lvl = 1, .rfagc_top = 0x58 },
        .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
                      .if_lvl = 1, .rfagc_top = 0x58 },
};

static struct tda18271_config hauppauge_hvr127x_config = {
        .std_map = &hauppauge_hvr127x_std_map,
        .output_opt = TDA18271_OUTPUT_LT_OFF,
};

static struct lgdt3305_config hauppauge_lgdt3305_config = {
        .i2c_addr           = 0x0e,
        .mpeg_mode          = LGDT3305_MPEG_SERIAL,
        .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
        .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
        .deny_i2c_rptr      = 1,
        .spectral_inversion = 1,
        .qam_if_khz         = 4000,
        .vsb_if_khz         = 3250,
};

static struct dibx000_agc_config xc3028_agc_config = {
        BAND_VHF | BAND_UHF,    /* band_caps */

        /* P_agc_use_sd_mod1=0, P_agc_use_sd_mod2=0, P_agc_freq_pwm_div=0,
         * P_agc_inv_pwm1=0, P_agc_inv_pwm2=0,
         * P_agc_inh_dc_rv_est=0, P_agc_time_est=3, P_agc_freeze=0,
         * P_agc_nb_est=2, P_agc_write=0
         */
        (0 << 15) | (0 << 14) | (0 << 11) | (0 << 10) | (0 << 9) | (0 << 8) |
                (3 << 5) | (0 << 4) | (2 << 1) | (0 << 0), /* setup */

        712,    /* inv_gain */
        21,     /* time_stabiliz */

        0,      /* alpha_level */
        118,    /* thlock */

        0,      /* wbd_inv */
        2867,   /* wbd_ref */
        0,      /* wbd_sel */
        2,      /* wbd_alpha */

        0,      /* agc1_max */
        0,      /* agc1_min */
        39718,  /* agc2_max */
        9930,   /* agc2_min */
        0,      /* agc1_pt1 */
        0,      /* agc1_pt2 */
        0,      /* agc1_pt3 */
        0,      /* agc1_slope1 */
        0,      /* agc1_slope2 */
        0,      /* agc2_pt1 */
        128,    /* agc2_pt2 */
        29,     /* agc2_slope1 */
        29,     /* agc2_slope2 */

        17,     /* alpha_mant */
        27,     /* alpha_exp */
        23,     /* beta_mant */
        51,     /* beta_exp */

        1,      /* perform_agc_softsplit */
};

/* PLL Configuration for COFDM BW_MHz = 8.000000
 * With external clock = 30.000000 */
static struct dibx000_bandwidth_config xc3028_bw_config = {
        60000,  /* internal */
        30000,  /* sampling */
        1,      /* pll_cfg: prediv */
        8,      /* pll_cfg: ratio */
        3,      /* pll_cfg: range */
        1,      /* pll_cfg: reset */
        0,      /* pll_cfg: bypass */
        0,      /* misc: refdiv */
        0,      /* misc: bypclk_div */
        1,      /* misc: IO_CLK_en_core */
        1,      /* misc: ADClkSrc */
        0,      /* misc: modulo */
        (3 << 14) | (1 << 12) | (524 << 0), /* sad_cfg: refsel, sel, freq_15k */
        (1 << 25) | 5816102, /* ifreq = 5.200000 MHz */
        20452225, /* timf */
        30000000  /* xtal_hz */
};

static struct dib7000p_config hauppauge_hvr1400_dib7000_config = {
        .output_mpeg2_in_188_bytes = 1,
        .hostbus_diversity = 1,
        .tuner_is_baseband = 0,
        .update_lna  = NULL,

        .agc_config_count = 1,
        .agc = &xc3028_agc_config,
        .bw  = &xc3028_bw_config,

        .gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
        .gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,
        .gpio_pwm_pos = DIB7000P_GPIO_DEFAULT_PWM_POS,

        .pwm_freq_div = 0,
        .agc_control  = NULL,
        .spur_protect = 0,

        .output_mode = OUTMODE_MPEG2_SERIAL,
};

static struct zl10353_config dvico_fusionhdtv_xc3028 = {
        .demod_address = 0x0f,
        .if2           = 45600,
        .no_tuner      = 1,
        .disable_i2c_gate_ctrl = 1,
};

static struct stv0900_reg stv0900_ts_regs[] = {
        { R0900_TSGENERAL, 0x00 },
        { R0900_P1_TSSPEED, 0x40 },
        { R0900_P2_TSSPEED, 0x40 },
        { R0900_P1_TSCFGM, 0xc0 },
        { R0900_P2_TSCFGM, 0xc0 },
        { R0900_P1_TSCFGH, 0xe0 },
        { R0900_P2_TSCFGH, 0xe0 },
        { R0900_P1_TSCFGL, 0x20 },
        { R0900_P2_TSCFGL, 0x20 },
        { 0xffff, 0xff }, /* terminate */
};

static struct stv0900_config netup_stv0900_config = {
        .demod_address = 0x68,
        .demod_mode = 1, /* dual */
        .xtal = 8000000,
        .clkmode = 3,/* 0-CLKI, 2-XTALI, else AUTO */
        .diseqc_mode = 2,/* 2/3 PWM */
        .ts_config_regs = stv0900_ts_regs,
        .tun1_maddress = 0,/* 0x60 */
        .tun2_maddress = 3,/* 0x63 */
        .tun1_adc = 1,/* 1 Vpp */
        .tun2_adc = 1,/* 1 Vpp */
};

static struct stv6110_config netup_stv6110_tunerconfig_a = {
        .i2c_address = 0x60,
        .mclk = 16000000,
        .clk_div = 1,
        .gain = 8, /* +16 dB  - maximum gain */
};

static struct stv6110_config netup_stv6110_tunerconfig_b = {
        .i2c_address = 0x63,
        .mclk = 16000000,
        .clk_div = 1,
        .gain = 8, /* +16 dB  - maximum gain */
};

static struct cx24116_config tbs_cx24116_config = {
        .demod_address = 0x55,
};

static struct ds3000_config tevii_ds3000_config = {
        .demod_address = 0x68,
};

static struct ts2020_config tevii_ts2020_config  = {
        .tuner_address = 0x60,
        .clk_out_div = 1,
};

static struct cx24116_config dvbworld_cx24116_config = {
        .demod_address = 0x05,
};

static struct lgs8gxx_config mygica_x8506_lgs8gl5_config = {
        .prod = LGS8GXX_PROD_LGS8GL5,
        .demod_address = 0x19,
        .serial_ts = 0,
        .ts_clk_pol = 1,
        .ts_clk_gated = 1,
        .if_clk_freq = 30400, /* 30.4 MHz */
        .if_freq = 5380, /* 5.38 MHz */
        .if_neg_center = 1,
        .ext_adc = 0,
        .adc_signed = 0,
        .if_neg_edge = 0,
};

static struct xc5000_config mygica_x8506_xc5000_config = {
        .i2c_address = 0x61,
        .if_khz = 5380,
};

static struct mb86a20s_config mygica_x8507_mb86a20s_config = {
        .demod_address = 0x10,
};

static struct xc5000_config mygica_x8507_xc5000_config = {
        .i2c_address = 0x61,
        .if_khz = 4000,
};

static struct stv090x_config prof_8000_stv090x_config = {
        .device                 = STV0903,
        .demod_mode             = STV090x_SINGLE,
        .clk_mode               = STV090x_CLK_EXT,
        .xtal                   = 27000000,
        .address                = 0x6A,
        .ts1_mode               = STV090x_TSMODE_PARALLEL_PUNCTURED,
        .repeater_level         = STV090x_RPTLEVEL_64,
        .adc1_range             = STV090x_ADC_2Vpp,
        .diseqc_envelope_mode   = false,

        .tuner_get_frequency    = stb6100_get_frequency,
        .tuner_set_frequency    = stb6100_set_frequency,
        .tuner_set_bandwidth    = stb6100_set_bandwidth,
        .tuner_get_bandwidth    = stb6100_get_bandwidth,
};

static struct stb6100_config prof_8000_stb6100_config = {
        .tuner_address = 0x60,
        .refclock = 27000000,
};

static int p8000_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
{
        struct cx23885_tsport *port = fe->dvb->priv;
        struct cx23885_dev *dev = port->dev;

        if (voltage == SEC_VOLTAGE_18)
                cx_write(MC417_RWD, 0x00001e00);
        else if (voltage == SEC_VOLTAGE_13)
                cx_write(MC417_RWD, 0x00001a00);
        else
                cx_write(MC417_RWD, 0x00001800);
        return 0;
}

static int cx23885_dvb_set_frontend(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
        struct cx23885_tsport *port = fe->dvb->priv;
        struct cx23885_dev *dev = port->dev;

        switch (dev->board) {
        case CX23885_BOARD_HAUPPAUGE_HVR1275:
                switch (p->modulation) {
                case VSB_8:
                        cx23885_gpio_clear(dev, GPIO_5);
                        break;
                case QAM_64:
                case QAM_256:
                default:
                        cx23885_gpio_set(dev, GPIO_5);
                        break;
                }
                break;
        case CX23885_BOARD_MYGICA_X8506:
        case CX23885_BOARD_MYGICA_X8507:
        case CX23885_BOARD_MAGICPRO_PROHDTVE2:
                /* Select Digital TV */
                cx23885_gpio_set(dev, GPIO_0);
                break;
        }

        /* Call the real set_frontend */
        if (port->set_frontend)
                return port->set_frontend(fe);

        return 0;
}

static void cx23885_set_frontend_hook(struct cx23885_tsport *port,
                                     struct dvb_frontend *fe)
{
        port->set_frontend = fe->ops.set_frontend;
        fe->ops.set_frontend = cx23885_dvb_set_frontend;
}

static struct lgs8gxx_config magicpro_prohdtve2_lgs8g75_config = {
        .prod = LGS8GXX_PROD_LGS8G75,
        .demod_address = 0x19,
        .serial_ts = 0,
        .ts_clk_pol = 1,
        .ts_clk_gated = 1,
        .if_clk_freq = 30400, /* 30.4 MHz */
        .if_freq = 6500, /* 6.50 MHz */
        .if_neg_center = 1,
        .ext_adc = 0,
        .adc_signed = 1,
        .adc_vpp = 2, /* 1.6 Vpp */
        .if_neg_edge = 1,
};

static struct xc5000_config magicpro_prohdtve2_xc5000_config = {
        .i2c_address = 0x61,
        .if_khz = 6500,
};

static struct atbm8830_config mygica_x8558pro_atbm8830_cfg1 = {
        .prod = ATBM8830_PROD_8830,
        .demod_address = 0x44,
        .serial_ts = 0,
        .ts_sampling_edge = 1,
        .ts_clk_gated = 0,
        .osc_clk_freq = 30400, /* in kHz */
        .if_freq = 0, /* zero IF */
        .zif_swap_iq = 1,
        .agc_min = 0x2E,
        .agc_max = 0xFF,
        .agc_hold_loop = 0,
};

static struct max2165_config mygic_x8558pro_max2165_cfg1 = {
        .i2c_address = 0x60,
        .osc_clk = 20
};

static struct atbm8830_config mygica_x8558pro_atbm8830_cfg2 = {
        .prod = ATBM8830_PROD_8830,
        .demod_address = 0x44,
        .serial_ts = 1,
        .ts_sampling_edge = 1,
        .ts_clk_gated = 0,
        .osc_clk_freq = 30400, /* in kHz */
        .if_freq = 0, /* zero IF */
        .zif_swap_iq = 1,
        .agc_min = 0x2E,
        .agc_max = 0xFF,
        .agc_hold_loop = 0,
};

static struct max2165_config mygic_x8558pro_max2165_cfg2 = {
        .i2c_address = 0x60,
        .osc_clk = 20
};
static struct stv0367_config netup_stv0367_config[] = {
        {
                .demod_address = 0x1c,
                .xtal = 27000000,
                .if_khz = 4500,
                .if_iq_mode = 0,
                .ts_mode = 1,
                .clk_pol = 0,
        }, {
                .demod_address = 0x1d,
                .xtal = 27000000,
                .if_khz = 4500,
                .if_iq_mode = 0,
                .ts_mode = 1,
                .clk_pol = 0,
        },
};

static struct xc5000_config netup_xc5000_config[] = {
        {
                .i2c_address = 0x61,
                .if_khz = 4500,
        }, {
                .i2c_address = 0x64,
                .if_khz = 4500,
        },
};

static struct drxk_config terratec_drxk_config[] = {
        {
                .adr = 0x29,
                .no_i2c_bridge = 1,
        }, {
                .adr = 0x2a,
                .no_i2c_bridge = 1,
        },
};

static struct mt2063_config terratec_mt2063_config[] = {
        {
                .tuner_address = 0x60,
        }, {
                .tuner_address = 0x67,
        },
};

static const struct tda10071_config hauppauge_tda10071_config = {
        .demod_i2c_addr = 0x05,
        .tuner_i2c_addr = 0x54,
        .i2c_wr_max = 64,
        .ts_mode = TDA10071_TS_SERIAL,
        .spec_inv = 0,
        .xtal = 40444000, /* 40.444 MHz */
        .pll_multiplier = 20,
};

static const struct a8293_config hauppauge_a8293_config = {
        .i2c_addr = 0x0b,
};

static int netup_altera_fpga_rw(void *device, int flag, int data, int read)
{
        struct cx23885_dev *dev = (struct cx23885_dev *)device;
        unsigned long timeout = jiffies + msecs_to_jiffies(1);
        uint32_t mem = 0;

        mem = cx_read(MC417_RWD);
        if (read)
                cx_set(MC417_OEN, ALT_DATA);
        else {
                cx_clear(MC417_OEN, ALT_DATA);/* D0-D7 out */
                mem &= ~ALT_DATA;
                mem |= (data & ALT_DATA);
        }

        if (flag)
                mem |= ALT_AD_RG;
        else
                mem &= ~ALT_AD_RG;

        mem &= ~ALT_CS;
        if (read)
                mem = (mem & ~ALT_RD) | ALT_WR;
        else
                mem = (mem & ~ALT_WR) | ALT_RD;

        cx_write(MC417_RWD, mem);  /* start RW cycle */

        for (;;) {
                mem = cx_read(MC417_RWD);
                if ((mem & ALT_RDY) == 0)
                        break;
                if (time_after(jiffies, timeout))
                        break;
                udelay(1);
        }

        cx_set(MC417_RWD, ALT_RD | ALT_WR | ALT_CS);
        if (read)
                return mem & ALT_DATA;

        return 0;
};

static int dvb_register(struct cx23885_tsport *port)
{
        struct cx23885_dev *dev = port->dev;
        struct cx23885_i2c *i2c_bus = NULL, *i2c_bus2 = NULL;
        struct videobuf_dvb_frontend *fe0, *fe1 = NULL;
        int mfe_shared = 0; /* bus not shared by default */
        int ret;

        /* Get the first frontend */
        fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
        if (!fe0)
                return -EINVAL;

        /* init struct videobuf_dvb */
        fe0->dvb.name = dev->name;

        /* multi-frontend gate control is undefined or defaults to fe0 */
        port->frontends.gate = 0;

        /* Sets the gate control callback to be used by i2c command calls */
        port->gate_ctrl = cx23885_dvb_gate_ctrl;

        /* init frontend */
        switch (dev->board) {
        case CX23885_BOARD_HAUPPAUGE_HVR1250:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                                &hauppauge_generic_config,
                                                &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(mt2131_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap,
                                   &hauppauge_generic_tunerconfig, 0);
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1270:
        case CX23885_BOARD_HAUPPAUGE_HVR1275:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(lgdt3305_attach,
                                               &hauppauge_lgdt3305_config,
                                               &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                   0x60, &dev->i2c_bus[1].i2c_adap,
                                   &hauppauge_hvr127x_config);
                }
                if (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1275)
                        cx23885_set_frontend_hook(port, fe0->dvb.frontend);
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1255:
        case CX23885_BOARD_HAUPPAUGE_HVR1255_22111:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(s5h1411_attach,
                                               &hcw_s5h1411_config,
                                               &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                   0x60, &dev->i2c_bus[1].i2c_adap,
                                   &hauppauge_tda18271_config);
                }

                tda18271_attach(&dev->ts1.analog_fe,
                        0x60, &dev->i2c_bus[1].i2c_adap,
                        &hauppauge_tda18271_config);

                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1800:
                i2c_bus = &dev->i2c_bus[0];
                switch (alt_tuner) {
                case 1:
                        fe0->dvb.frontend =
                                dvb_attach(s5h1409_attach,
                                           &hauppauge_ezqam_config,
                                           &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL) {
                                dvb_attach(tda829x_attach, fe0->dvb.frontend,
                                           &dev->i2c_bus[1].i2c_adap, 0x42,
                                           &tda829x_no_probe);
                                dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                           0x60, &dev->i2c_bus[1].i2c_adap,
                                           &hauppauge_tda18271_config);
                        }
                        break;
                case 0:
                default:
                        fe0->dvb.frontend =
                                dvb_attach(s5h1409_attach,
                                           &hauppauge_generic_config,
                                           &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL)
                                dvb_attach(mt2131_attach, fe0->dvb.frontend,
                                           &i2c_bus->i2c_adap,
                                           &hauppauge_generic_tunerconfig, 0);
                        break;
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                                &hauppauge_hvr1800lp_config,
                                                &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(mt2131_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap,
                                   &hauppauge_generic_tunerconfig, 0);
                }
                break;
        case CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
                                                &fusionhdtv_5_express,
                                                &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap, 0x61,
                                   TUNER_LG_TDVS_H06XF);
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
                i2c_bus = &dev->i2c_bus[1];
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                                &hauppauge_hvr1500q_config,
                                                &dev->i2c_bus[0].i2c_adap);
                if (fe0->dvb.frontend != NULL)
                        dvb_attach(xc5000_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap,
                                   &hauppauge_hvr1500q_tunerconfig);
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1500:
                i2c_bus = &dev->i2c_bus[1];
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                                &hauppauge_hvr1500_config,
                                                &dev->i2c_bus[0].i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        struct dvb_frontend *fe;
                        struct xc2028_config cfg = {
                                .i2c_adap  = &i2c_bus->i2c_adap,
                                .i2c_addr  = 0x61,
                        };
                        static struct xc2028_ctrl ctl = {
                                .fname       = XC2028_DEFAULT_FIRMWARE,
                                .max_len     = 64,
                                .demod       = XC3028_FE_OREN538,
                        };

                        fe = dvb_attach(xc2028_attach,
                                        fe0->dvb.frontend, &cfg);
                        if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
                                fe->ops.tuner_ops.set_config(fe, &ctl);
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1200:
        case CX23885_BOARD_HAUPPAUGE_HVR1700:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(tda10048_attach,
                        &hauppauge_hvr1200_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(tda829x_attach, fe0->dvb.frontend,
                                &dev->i2c_bus[1].i2c_adap, 0x42,
                                &tda829x_no_probe);
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                0x60, &dev->i2c_bus[1].i2c_adap,
                                &hauppauge_hvr1200_tuner_config);
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1210:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(tda10048_attach,
                        &hauppauge_hvr1210_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                0x60, &dev->i2c_bus[1].i2c_adap,
                                &hauppauge_hvr1210_tuner_config);
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1400:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(dib7000p_attach,
                        &i2c_bus->i2c_adap,
                        0x12, &hauppauge_hvr1400_dib7000_config);
                if (fe0->dvb.frontend != NULL) {
                        struct dvb_frontend *fe;
                        struct xc2028_config cfg = {
                                .i2c_adap  = &dev->i2c_bus[1].i2c_adap,
                                .i2c_addr  = 0x64,
                        };
                        static struct xc2028_ctrl ctl = {
                                .fname   = XC3028L_DEFAULT_FIRMWARE,
                                .max_len = 64,
                                .demod   = XC3028_FE_DIBCOM52,
                                /* This is true for all demods with
                                        v36 firmware? */
                                .type    = XC2028_D2633,
                        };

                        fe = dvb_attach(xc2028_attach,
                                        fe0->dvb.frontend, &cfg);
                        if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
                                fe->ops.tuner_ops.set_config(fe, &ctl);
                }
                break;
        case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
                i2c_bus = &dev->i2c_bus[port->nr - 1];

                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                                &dvico_s5h1409_config,
                                                &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend == NULL)
                        fe0->dvb.frontend = dvb_attach(s5h1411_attach,
                                                        &dvico_s5h1411_config,
                                                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL)
                        dvb_attach(xc5000_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap,
                                   &dvico_xc5000_tunerconfig);
                break;
        case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP: {
                i2c_bus = &dev->i2c_bus[port->nr - 1];

                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_xc3028,
                                               &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        struct dvb_frontend      *fe;
                        struct xc2028_config      cfg = {
                                .i2c_adap  = &i2c_bus->i2c_adap,
                                .i2c_addr  = 0x61,
                        };
                        static struct xc2028_ctrl ctl = {
                                .fname       = XC2028_DEFAULT_FIRMWARE,
                                .max_len     = 64,
                                .demod       = XC3028_FE_ZARLINK456,
                        };

                        fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
                                        &cfg);
                        if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
                                fe->ops.tuner_ops.set_config(fe, &ctl);
                }
                break;
        }
        case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
        case CX23885_BOARD_COMPRO_VIDEOMATE_E650F:
        case CX23885_BOARD_COMPRO_VIDEOMATE_E800:
                i2c_bus = &dev->i2c_bus[0];

                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                        &dvico_fusionhdtv_xc3028,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        struct dvb_frontend      *fe;
                        struct xc2028_config      cfg = {
                                .i2c_adap  = &dev->i2c_bus[1].i2c_adap,
                                .i2c_addr  = 0x61,
                        };
                        static struct xc2028_ctrl ctl = {

                                .fname       = XC2028_DEFAULT_FIRMWARE,
                                .max_len     = 64,
                                .demod       = XC3028_FE_ZARLINK456,
                        };

                        fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
                                &cfg);
                        if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
                                fe->ops.tuner_ops.set_config(fe, &ctl);
                }
                break;
        case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000:
                i2c_bus = &dev->i2c_bus[0];

                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_xc3028,
                                               &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        struct dvb_frontend     *fe;
                        struct xc4000_config    cfg = {
                                .i2c_address      = 0x61,
                                .default_pm       = 0,
                                .dvb_amplitude    = 134,
                                .set_smoothedcvbs = 1,
                                .if_khz           = 4560
                        };

                        fe = dvb_attach(xc4000_attach, fe0->dvb.frontend,
                                        &dev->i2c_bus[1].i2c_adap, &cfg);
                        if (!fe) {
                                printk(KERN_ERR "%s/2: xc4000 attach failed\n",
                                       dev->name);
                                goto frontend_detach;
                        }
                }
                break;
        case CX23885_BOARD_TBS_6920:
                i2c_bus = &dev->i2c_bus[1];

                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                                        &tbs_cx24116_config,
                                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL)
                        fe0->dvb.frontend->ops.set_voltage = f300_set_voltage;

                break;
        case CX23885_BOARD_TEVII_S470:
                i2c_bus = &dev->i2c_bus[1];

                fe0->dvb.frontend = dvb_attach(ds3000_attach,
                                        &tevii_ds3000_config,
                                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(ts2020_attach, fe0->dvb.frontend,
                                &tevii_ts2020_config, &i2c_bus->i2c_adap);
                        fe0->dvb.frontend->ops.set_voltage = f300_set_voltage;
                }

                break;
        case CX23885_BOARD_DVBWORLD_2005:
                i2c_bus = &dev->i2c_bus[1];

                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                        &dvbworld_cx24116_config,
                        &i2c_bus->i2c_adap);
                break;
        case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
                i2c_bus = &dev->i2c_bus[0];
                switch (port->nr) {
                /* port B */
                case 1:
                        fe0->dvb.frontend = dvb_attach(stv0900_attach,
                                                        &netup_stv0900_config,
                                                        &i2c_bus->i2c_adap, 0);
                        if (fe0->dvb.frontend != NULL) {
                                if (dvb_attach(stv6110_attach,
                                                fe0->dvb.frontend,
                                                &netup_stv6110_tunerconfig_a,
                                                &i2c_bus->i2c_adap)) {
                                        if (!dvb_attach(lnbh24_attach,
                                                        fe0->dvb.frontend,
                                                        &i2c_bus->i2c_adap,
                                                        LNBH24_PCL | LNBH24_TTX,
                                                        LNBH24_TEN, 0x09))
                                                printk(KERN_ERR
                                                        "No LNBH24 found!\n");

                                }
                        }
                        break;
                /* port C */
                case 2:
                        fe0->dvb.frontend = dvb_attach(stv0900_attach,
                                                        &netup_stv0900_config,
                                                        &i2c_bus->i2c_adap, 1);
                        if (fe0->dvb.frontend != NULL) {
                                if (dvb_attach(stv6110_attach,
                                                fe0->dvb.frontend,
                                                &netup_stv6110_tunerconfig_b,
                                                &i2c_bus->i2c_adap)) {
                                        if (!dvb_attach(lnbh24_attach,
                                                        fe0->dvb.frontend,
                                                        &i2c_bus->i2c_adap,
                                                        LNBH24_PCL | LNBH24_TTX,
                                                        LNBH24_TEN, 0x0a))
                                                printk(KERN_ERR
                                                        "No LNBH24 found!\n");

                                }
                        }
                        break;
                }
                break;
        case CX23885_BOARD_MYGICA_X8506:
                i2c_bus = &dev->i2c_bus[0];
                i2c_bus2 = &dev->i2c_bus[1];
                fe0->dvb.frontend = dvb_attach(lgs8gxx_attach,
                        &mygica_x8506_lgs8gl5_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(xc5000_attach,
                                fe0->dvb.frontend,
                                &i2c_bus2->i2c_adap,
                                &mygica_x8506_xc5000_config);
                }
                cx23885_set_frontend_hook(port, fe0->dvb.frontend);
                break;
        case CX23885_BOARD_MYGICA_X8507:
                i2c_bus = &dev->i2c_bus[0];
                i2c_bus2 = &dev->i2c_bus[1];
                fe0->dvb.frontend = dvb_attach(mb86a20s_attach,
                        &mygica_x8507_mb86a20s_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(xc5000_attach,
                        fe0->dvb.frontend,
                        &i2c_bus2->i2c_adap,
                        &mygica_x8507_xc5000_config);
                }
                cx23885_set_frontend_hook(port, fe0->dvb.frontend);
                break;
        case CX23885_BOARD_MAGICPRO_PROHDTVE2:
                i2c_bus = &dev->i2c_bus[0];
                i2c_bus2 = &dev->i2c_bus[1];
                fe0->dvb.frontend = dvb_attach(lgs8gxx_attach,
                        &magicpro_prohdtve2_lgs8g75_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(xc5000_attach,
                                fe0->dvb.frontend,
                                &i2c_bus2->i2c_adap,
                                &magicpro_prohdtve2_xc5000_config);
                }
                cx23885_set_frontend_hook(port, fe0->dvb.frontend);
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1850:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(s5h1411_attach,
                        &hcw_s5h1411_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL)
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                0x60, &dev->i2c_bus[0].i2c_adap,
                                &hauppauge_tda18271_config);

                tda18271_attach(&dev->ts1.analog_fe,
                        0x60, &dev->i2c_bus[1].i2c_adap,
                        &hauppauge_tda18271_config);

                break;
        case CX23885_BOARD_HAUPPAUGE_HVR1290:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(s5h1411_attach,
                        &hcw_s5h1411_config,
                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL)
                        dvb_attach(tda18271_attach, fe0->dvb.frontend,
                                0x60, &dev->i2c_bus[0].i2c_adap,
                                &hauppauge_tda18271_config);
                break;
        case CX23885_BOARD_MYGICA_X8558PRO:
                switch (port->nr) {
                /* port B */
                case 1:
                        i2c_bus = &dev->i2c_bus[0];
                        fe0->dvb.frontend = dvb_attach(atbm8830_attach,
                                &mygica_x8558pro_atbm8830_cfg1,
                                &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL) {
                                dvb_attach(max2165_attach,
                                        fe0->dvb.frontend,
                                        &i2c_bus->i2c_adap,
                                        &mygic_x8558pro_max2165_cfg1);
                        }
                        break;
                /* port C */
                case 2:
                        i2c_bus = &dev->i2c_bus[1];
                        fe0->dvb.frontend = dvb_attach(atbm8830_attach,
                                &mygica_x8558pro_atbm8830_cfg2,
                                &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL) {
                                dvb_attach(max2165_attach,
                                        fe0->dvb.frontend,
                                        &i2c_bus->i2c_adap,
                                        &mygic_x8558pro_max2165_cfg2);
                        }
                        break;
                }
                break;
        case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF:
                i2c_bus = &dev->i2c_bus[0];
                mfe_shared = 1;/* MFE */
                port->frontends.gate = 0;/* not clear for me yet */
                /* ports B, C */
                /* MFE frontend 1 DVB-T */
                fe0->dvb.frontend = dvb_attach(stv0367ter_attach,
                                        &netup_stv0367_config[port->nr - 1],
                                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        if (NULL == dvb_attach(xc5000_attach,
                                        fe0->dvb.frontend,
                                        &i2c_bus->i2c_adap,
                                        &netup_xc5000_config[port->nr - 1]))
                                goto frontend_detach;
                        /* load xc5000 firmware */
                        fe0->dvb.frontend->ops.tuner_ops.init(fe0->dvb.frontend);
                }
                /* MFE frontend 2 */
                fe1 = videobuf_dvb_get_frontend(&port->frontends, 2);
                if (fe1 == NULL)
                        goto frontend_detach;
                /* DVB-C init */
                fe1->dvb.frontend = dvb_attach(stv0367cab_attach,
                                        &netup_stv0367_config[port->nr - 1],
                                        &i2c_bus->i2c_adap);
                if (fe1->dvb.frontend != NULL) {
                        fe1->dvb.frontend->id = 1;
                        if (NULL == dvb_attach(xc5000_attach,
                                        fe1->dvb.frontend,
                                        &i2c_bus->i2c_adap,
                                        &netup_xc5000_config[port->nr - 1]))
                                goto frontend_detach;
                }
                break;
        case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL:
                i2c_bus = &dev->i2c_bus[0];
                i2c_bus2 = &dev->i2c_bus[1];

                switch (port->nr) {
                /* port b */
                case 1:
                        fe0->dvb.frontend = dvb_attach(drxk_attach,
                                        &terratec_drxk_config[0],
                                        &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL) {
                                if (!dvb_attach(mt2063_attach,
                                                fe0->dvb.frontend,
                                                &terratec_mt2063_config[0],
                                                &i2c_bus2->i2c_adap))
                                        goto frontend_detach;
                        }
                        break;
                /* port c */
                case 2:
                        fe0->dvb.frontend = dvb_attach(drxk_attach,
                                        &terratec_drxk_config[1],
                                        &i2c_bus->i2c_adap);
                        if (fe0->dvb.frontend != NULL) {
                                if (!dvb_attach(mt2063_attach,
                                                fe0->dvb.frontend,
                                                &terratec_mt2063_config[1],
                                                &i2c_bus2->i2c_adap))
                                        goto frontend_detach;
                        }
                        break;
                }
                break;
        case CX23885_BOARD_TEVII_S471:
                i2c_bus = &dev->i2c_bus[1];

                fe0->dvb.frontend = dvb_attach(ds3000_attach,
                                        &tevii_ds3000_config,
                                        &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(ts2020_attach, fe0->dvb.frontend,
                                &tevii_ts2020_config, &i2c_bus->i2c_adap);
                }
                break;
        case CX23885_BOARD_PROF_8000:
                i2c_bus = &dev->i2c_bus[0];

                fe0->dvb.frontend = dvb_attach(stv090x_attach,
                                                &prof_8000_stv090x_config,
                                                &i2c_bus->i2c_adap,
                                                STV090x_DEMODULATOR_0);
                if (fe0->dvb.frontend != NULL) {
                        if (!dvb_attach(stb6100_attach,
                                        fe0->dvb.frontend,
                                        &prof_8000_stb6100_config,
                                        &i2c_bus->i2c_adap))
                                goto frontend_detach;

                        fe0->dvb.frontend->ops.set_voltage = p8000_set_voltage;
                }
                break;
        case CX23885_BOARD_HAUPPAUGE_HVR4400:
                i2c_bus = &dev->i2c_bus[0];
                fe0->dvb.frontend = dvb_attach(tda10071_attach,
                                                &hauppauge_tda10071_config,
                                                &i2c_bus->i2c_adap);
                if (fe0->dvb.frontend != NULL) {
                        dvb_attach(a8293_attach, fe0->dvb.frontend,
                                   &i2c_bus->i2c_adap,
                                   &hauppauge_a8293_config);
                }
                break;
        default:
                printk(KERN_INFO "%s: The frontend of your DVB/ATSC card "
                        " isn't supported yet\n",
                       dev->name);
                break;
        }

        if ((NULL == fe0->dvb.frontend) || (fe1 && NULL == fe1->dvb.frontend)) {
                printk(KERN_ERR "%s: frontend initialization failed\n",
                       dev->name);
                goto frontend_detach;
        }

        /* define general-purpose callback pointer */
        fe0->dvb.frontend->callback = cx23885_tuner_callback;
        if (fe1)
                fe1->dvb.frontend->callback = cx23885_tuner_callback;
#if 0
        /* Ensure all frontends negotiate bus access */
        fe0->dvb.frontend->ops.ts_bus_ctrl = cx23885_dvb_bus_ctrl;
        if (fe1)
                fe1->dvb.frontend->ops.ts_bus_ctrl = cx23885_dvb_bus_ctrl;
#endif

        /* Put the analog decoder in standby to keep it quiet */
        call_all(dev, core, s_power, 0);

        if (fe0->dvb.frontend->ops.analog_ops.standby)
                fe0->dvb.frontend->ops.analog_ops.standby(fe0->dvb.frontend);

        /* register everything */
        ret = videobuf_dvb_register_bus(&port->frontends, THIS_MODULE, port,
                                        &dev->pci->dev, adapter_nr, mfe_shared);
        if (ret)
                goto frontend_detach;

        /* init CI & MAC */
        switch (dev->board) {
        case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: {
                static struct netup_card_info cinfo;

                netup_get_card_info(&dev->i2c_bus[0].i2c_adap, &cinfo);
                memcpy(port->frontends.adapter.proposed_mac,
                                cinfo.port[port->nr - 1].mac, 6);
                printk(KERN_INFO "NetUP Dual DVB-S2 CI card port%d MAC=%pM\n",
                        port->nr, port->frontends.adapter.proposed_mac);

                netup_ci_init(port);
                break;
                }
        case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF: {
                struct altera_ci_config netup_ci_cfg = {
                        .dev = dev,/* magic number to identify*/
                        .adapter = &port->frontends.adapter,/* for CI */
                        .demux = &fe0->dvb.demux,/* for hw pid filter */
                        .fpga_rw = netup_altera_fpga_rw,
                };

                altera_ci_init(&netup_ci_cfg, port->nr);
                break;
                }
        case CX23885_BOARD_TEVII_S470: {
                u8 eeprom[256]; /* 24C02 i2c eeprom */

                if (port->nr != 1)
                        break;

                /* Read entire EEPROM */
                dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1;
                tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, sizeof(eeprom));
                printk(KERN_INFO "TeVii S470 MAC= %pM\n", eeprom + 0xa0);
                memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xa0, 6);
                break;
                }
        }

        return ret;

frontend_detach:
        port->gate_ctrl = NULL;
        videobuf_dvb_dealloc_frontends(&port->frontends);
        return -EINVAL;
}

int cx23885_dvb_register(struct cx23885_tsport *port)
{

        struct videobuf_dvb_frontend *fe0;
        struct cx23885_dev *dev = port->dev;
        int err, i;

        /* Here we need to allocate the correct number of frontends,
         * as reflected in the cards struct. The reality is that currently
         * no cx23885 boards support this - yet. But, if we don't modify this
         * code then the second frontend would never be allocated (later)
         * and fail with error before the attach in dvb_register().
         * Without these changes we risk an OOPS later. The changes here
         * are for safety, and should provide a good foundation for the
         * future addition of any multi-frontend cx23885 based boards.
         */
        printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__,
                port->num_frontends);

        for (i = 1; i <= port->num_frontends; i++) {
                if (videobuf_dvb_alloc_frontend(
                        &port->frontends, i) == NULL) {
                        printk(KERN_ERR "%s() failed to alloc\n", __func__);
                        return -ENOMEM;
                }

                fe0 = videobuf_dvb_get_frontend(&port->frontends, i);
                if (!fe0)
                        err = -EINVAL;

                dprintk(1, "%s\n", __func__);
                dprintk(1, " ->probed by Card=%d Name=%s, PCI %02x:%02x\n",
                        dev->board,
                        dev->name,
                        dev->pci_bus,
                        dev->pci_slot);

                err = -ENODEV;

                /* dvb stuff */
                /* We have to init the queue for each frontend on a port. */
                printk(KERN_INFO "%s: cx23885 based dvb card\n", dev->name);
                videobuf_queue_sg_init(&fe0->dvb.dvbq, &dvb_qops,
                            &dev->pci->dev, &port->slock,
                            V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_TOP,
                            sizeof(struct cx23885_buffer), port, NULL);
        }
        err = dvb_register(port);
        if (err != 0)
                printk(KERN_ERR "%s() dvb_register failed err = %d\n",
                        __func__, err);

        return err;
}

int cx23885_dvb_unregister(struct cx23885_tsport *port)
{
        struct videobuf_dvb_frontend *fe0;

        /* FIXME: in an error condition where the we have
         * an expected number of frontends (attach problem)
         * then this might not clean up correctly, if 1
         * is invalid.
         * This comment only applies to future boards IF they
         * implement MFE support.
         */
        fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
        if (fe0 && fe0->dvb.frontend)
                videobuf_dvb_unregister_bus(&port->frontends);

        switch (port->dev->board) {
        case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
                netup_ci_exit(port);
                break;
        case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF:
                altera_ci_release(port->dev, port->nr);
                break;
        }

        port->gate_ctrl = NULL;

        return 0;
}