// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * device driver for Conexant 2388x based TV cards
 * MPEG Transport Stream (DVB) routines
 *
 * (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 */

#include "cx88.h"
#include "dvb-pll.h"

#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 <media/v4l2-common.h>

#include "mt352.h"
#include "mt352_priv.h"
#include "cx88-vp3054-i2c.h"
#include "zl10353.h"
#include "cx22702.h"
#include "or51132.h"
#include "lgdt330x.h"
#include "s5h1409.h"
#include "xc4000.h"
#include "xc5000.h"
#include "nxt200x.h"
#include "cx24123.h"
#include "isl6421.h"
#include "tuner-simple.h"
#include "tda9887.h"
#include "s5h1411.h"
#include "stv0299.h"
#include "z0194a.h"
#include "stv0288.h"
#include "stb6000.h"
#include "cx24116.h"
#include "stv0900.h"
#include "stb6100.h"
#include "stb6100_proc.h"
#include "mb86a16.h"
#include "ts2020.h"
#include "ds3000.h"

MODULE_DESCRIPTION("driver for cx2388x based DVB cards");
MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
MODULE_LICENSE("GPL");
MODULE_VERSION(CX88_VERSION);

static unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages [dvb]");

static unsigned int dvb_buf_tscnt = 32;
module_param(dvb_buf_tscnt, int, 0644);
MODULE_PARM_DESC(dvb_buf_tscnt, "DVB Buffer TS count [dvb]");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define dprintk(level, fmt, arg...) do {                                \
        if (debug >= level)                                             \
                printk(KERN_DEBUG pr_fmt("%s: dvb:" fmt),               \
                        __func__, ##arg);                               \
} while (0)

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

static int queue_setup(struct vb2_queue *q,
                       unsigned int *num_buffers, unsigned int *num_planes,
                       unsigned int sizes[], struct device *alloc_devs[])
{
        struct cx8802_dev *dev = q->drv_priv;

        *num_planes = 1;
        dev->ts_packet_size  = 188 * 4;
        dev->ts_packet_count = dvb_buf_tscnt;
        sizes[0] = dev->ts_packet_size * dev->ts_packet_count;
        *num_buffers = dvb_buf_tscnt;
        return 0;
}

static int buffer_prepare(struct vb2_buffer *vb)
{
        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
        struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
        struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);

        return cx8802_buf_prepare(vb->vb2_queue, dev, buf);
}

static void buffer_finish(struct vb2_buffer *vb)
{
        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
        struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
        struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
        struct cx88_riscmem *risc = &buf->risc;

        if (risc->cpu)
                dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
                                  risc->dma);
        memset(risc, 0, sizeof(*risc));
}

static void buffer_queue(struct vb2_buffer *vb)
{
        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
        struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
        struct cx88_buffer    *buf = container_of(vbuf, struct cx88_buffer, vb);

        cx8802_buf_queue(dev, buf);
}

static int start_streaming(struct vb2_queue *q, unsigned int count)
{
        struct cx8802_dev *dev = q->drv_priv;
        struct cx88_dmaqueue *dmaq = &dev->mpegq;
        struct cx88_buffer *buf;

        buf = list_entry(dmaq->active.next, struct cx88_buffer, list);
        cx8802_start_dma(dev, dmaq, buf);
        return 0;
}

static void stop_streaming(struct vb2_queue *q)
{
        struct cx8802_dev *dev = q->drv_priv;
        struct cx88_dmaqueue *dmaq = &dev->mpegq;
        unsigned long flags;

        cx8802_cancel_buffers(dev);

        spin_lock_irqsave(&dev->slock, flags);
        while (!list_empty(&dmaq->active)) {
                struct cx88_buffer *buf = list_entry(dmaq->active.next,
                        struct cx88_buffer, list);

                list_del(&buf->list);
                vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
        }
        spin_unlock_irqrestore(&dev->slock, flags);
}

static const struct vb2_ops dvb_qops = {
        .queue_setup    = queue_setup,
        .buf_prepare  = buffer_prepare,
        .buf_finish = buffer_finish,
        .buf_queue    = buffer_queue,
        .start_streaming = start_streaming,
        .stop_streaming = stop_streaming,
};

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

static int cx88_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx8802_driver *drv = NULL;
        int ret = 0;
        int fe_id;

        fe_id = vb2_dvb_find_frontend(&dev->frontends, fe);
        if (!fe_id) {
                pr_err("%s() No frontend found\n", __func__);
                return -EINVAL;
        }

        mutex_lock(&dev->core->lock);
        drv = cx8802_get_driver(dev, CX88_MPEG_DVB);
        if (drv) {
                if (acquire) {
                        dev->frontends.active_fe_id = fe_id;
                        ret = drv->request_acquire(drv);
                } else {
                        ret = drv->request_release(drv);
                        dev->frontends.active_fe_id = 0;
                }
        }
        mutex_unlock(&dev->core->lock);

        return ret;
}

static void cx88_dvb_gate_ctrl(struct cx88_core  *core, int open)
{
        struct vb2_dvb_frontends *f;
        struct vb2_dvb_frontend *fe;

        if (!core->dvbdev)
                return;

        f = &core->dvbdev->frontends;

        if (!f)
                return;

        if (f->gate <= 1) /* undefined or fe0 */
                fe = vb2_dvb_get_frontend(f, 1);
        else
                fe = vb2_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 int dvico_fusionhdtv_demod_init(struct dvb_frontend *fe)
{
        static const u8 clock_config[]  = { CLOCK_CTL,  0x38, 0x39 };
        static const u8 reset[]         = { RESET,      0x80 };
        static const u8 adc_ctl_1_cfg[] = { ADC_CTL_1,  0x40 };
        static const u8 agc_cfg[]       = { AGC_TARGET, 0x24, 0x20 };
        static const u8 gpp_ctl_cfg[]   = { GPP_CTL,    0x33 };
        static const u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };

        mt352_write(fe, clock_config,   sizeof(clock_config));
        udelay(200);
        mt352_write(fe, reset,          sizeof(reset));
        mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));

        mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
        mt352_write(fe, gpp_ctl_cfg,    sizeof(gpp_ctl_cfg));
        mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
        return 0;
}

static int dvico_dual_demod_init(struct dvb_frontend *fe)
{
        static const u8 clock_config[]  = { CLOCK_CTL,  0x38, 0x38 };
        static const u8 reset[]         = { RESET,      0x80 };
        static const u8 adc_ctl_1_cfg[] = { ADC_CTL_1,  0x40 };
        static const u8 agc_cfg[]       = { AGC_TARGET, 0x28, 0x20 };
        static const u8 gpp_ctl_cfg[]   = { GPP_CTL,    0x33 };
        static const u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };

        mt352_write(fe, clock_config,   sizeof(clock_config));
        udelay(200);
        mt352_write(fe, reset,          sizeof(reset));
        mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));

        mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
        mt352_write(fe, gpp_ctl_cfg,    sizeof(gpp_ctl_cfg));
        mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));

        return 0;
}

static int dntv_live_dvbt_demod_init(struct dvb_frontend *fe)
{
        static const u8 clock_config[]  = { 0x89, 0x38, 0x39 };
        static const u8 reset[]         = { 0x50, 0x80 };
        static const u8 adc_ctl_1_cfg[] = { 0x8E, 0x40 };
        static const u8 agc_cfg[]       = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
                                       0x00, 0xFF, 0x00, 0x40, 0x40 };
        static const u8 dntv_extra[]     = { 0xB5, 0x7A };
        static const u8 capt_range_cfg[] = { 0x75, 0x32 };

        mt352_write(fe, clock_config,   sizeof(clock_config));
        udelay(2000);
        mt352_write(fe, reset,          sizeof(reset));
        mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));

        mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
        udelay(2000);
        mt352_write(fe, dntv_extra,     sizeof(dntv_extra));
        mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));

        return 0;
}

static const struct mt352_config dvico_fusionhdtv = {
        .demod_address = 0x0f,
        .demod_init    = dvico_fusionhdtv_demod_init,
};

static const struct mt352_config dntv_live_dvbt_config = {
        .demod_address = 0x0f,
        .demod_init    = dntv_live_dvbt_demod_init,
};

static const struct mt352_config dvico_fusionhdtv_dual = {
        .demod_address = 0x0f,
        .demod_init    = dvico_dual_demod_init,
};

static const struct zl10353_config cx88_terratec_cinergy_ht_pci_mkii_config = {
        .demod_address = (0x1e >> 1),
        .no_tuner      = 1,
        .if2           = 45600,
};

static const struct mb86a16_config twinhan_vp1027 = {
        .demod_address  = 0x08,
};

#if IS_ENABLED(CONFIG_VIDEO_CX88_VP3054)
static int dntv_live_dvbt_pro_demod_init(struct dvb_frontend *fe)
{
        static const u8 clock_config[]  = { 0x89, 0x38, 0x38 };
        static const u8 reset[]         = { 0x50, 0x80 };
        static const u8 adc_ctl_1_cfg[] = { 0x8E, 0x40 };
        static const u8 agc_cfg[]       = { 0x67, 0x10, 0x20, 0x00, 0xFF, 0xFF,
                                       0x00, 0xFF, 0x00, 0x40, 0x40 };
        static const u8 dntv_extra[]     = { 0xB5, 0x7A };
        static const u8 capt_range_cfg[] = { 0x75, 0x32 };

        mt352_write(fe, clock_config,   sizeof(clock_config));
        udelay(2000);
        mt352_write(fe, reset,          sizeof(reset));
        mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));

        mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
        udelay(2000);
        mt352_write(fe, dntv_extra,     sizeof(dntv_extra));
        mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));

        return 0;
}

static const struct mt352_config dntv_live_dvbt_pro_config = {
        .demod_address = 0x0f,
        .no_tuner      = 1,
        .demod_init    = dntv_live_dvbt_pro_demod_init,
};
#endif

static const struct zl10353_config dvico_fusionhdtv_hybrid = {
        .demod_address = 0x0f,
        .no_tuner      = 1,
};

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

static const struct mt352_config dvico_fusionhdtv_mt352_xc3028 = {
        .demod_address = 0x0f,
        .if2 = 4560,
        .no_tuner = 1,
        .demod_init = dvico_fusionhdtv_demod_init,
};

static const struct zl10353_config dvico_fusionhdtv_plus_v1_1 = {
        .demod_address = 0x0f,
};

static const struct cx22702_config connexant_refboard_config = {
        .demod_address = 0x43,
        .output_mode   = CX22702_SERIAL_OUTPUT,
};

static const struct cx22702_config hauppauge_hvr_config = {
        .demod_address = 0x63,
        .output_mode   = CX22702_SERIAL_OUTPUT,
};

static int or51132_set_ts_param(struct dvb_frontend *fe, int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = is_punctured ? 0x04 : 0x00;
        return 0;
}

static const struct or51132_config pchdtv_hd3000 = {
        .demod_address = 0x15,
        .set_ts_params = or51132_set_ts_param,
};

static int lgdt330x_pll_rf_set(struct dvb_frontend *fe, int index)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        dprintk(1, "%s: index = %d\n", __func__, index);
        if (index == 0)
                cx_clear(MO_GP0_IO, 8);
        else
                cx_set(MO_GP0_IO, 8);
        return 0;
}

static int lgdt330x_set_ts_param(struct dvb_frontend *fe, int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        if (is_punctured)
                dev->ts_gen_cntrl |= 0x04;
        else
                dev->ts_gen_cntrl &= ~0x04;
        return 0;
}

static struct lgdt330x_config fusionhdtv_3_gold = {
        .demod_chip    = LGDT3302,
        .serial_mpeg   = 0x04, /* TPSERIAL for 3302 in TOP_CONTROL */
        .set_ts_params = lgdt330x_set_ts_param,
};

static const struct lgdt330x_config fusionhdtv_5_gold = {
        .demod_chip    = LGDT3303,
        .serial_mpeg   = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
        .set_ts_params = lgdt330x_set_ts_param,
};

static const struct lgdt330x_config pchdtv_hd5500 = {
        .demod_chip    = LGDT3303,
        .serial_mpeg   = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
        .set_ts_params = lgdt330x_set_ts_param,
};

static int nxt200x_set_ts_param(struct dvb_frontend *fe, int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = is_punctured ? 0x04 : 0x00;
        return 0;
}

static const struct nxt200x_config ati_hdtvwonder = {
        .demod_address = 0x0a,
        .set_ts_params = nxt200x_set_ts_param,
};

static int cx24123_set_ts_param(struct dvb_frontend *fe,
                                int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = 0x02;
        return 0;
}

static int kworld_dvbs_100_set_voltage(struct dvb_frontend *fe,
                                       enum fe_sec_voltage voltage)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        if (voltage == SEC_VOLTAGE_OFF)
                cx_write(MO_GP0_IO, 0x000006fb);
        else
                cx_write(MO_GP0_IO, 0x000006f9);

        if (core->prev_set_voltage)
                return core->prev_set_voltage(fe, voltage);
        return 0;
}

static int geniatech_dvbs_set_voltage(struct dvb_frontend *fe,
                                      enum fe_sec_voltage voltage)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        if (voltage == SEC_VOLTAGE_OFF) {
                dprintk(1, "LNB Voltage OFF\n");
                cx_write(MO_GP0_IO, 0x0000efff);
        }

        if (core->prev_set_voltage)
                return core->prev_set_voltage(fe, voltage);
        return 0;
}

static int tevii_dvbs_set_voltage(struct dvb_frontend *fe,
                                  enum fe_sec_voltage voltage)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        cx_set(MO_GP0_IO, 0x6040);
        switch (voltage) {
        case SEC_VOLTAGE_13:
                cx_clear(MO_GP0_IO, 0x20);
                break;
        case SEC_VOLTAGE_18:
                cx_set(MO_GP0_IO, 0x20);
                break;
        case SEC_VOLTAGE_OFF:
                cx_clear(MO_GP0_IO, 0x20);
                break;
        }

        if (core->prev_set_voltage)
                return core->prev_set_voltage(fe, voltage);
        return 0;
}

static int vp1027_set_voltage(struct dvb_frontend *fe,
                              enum fe_sec_voltage voltage)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        switch (voltage) {
        case SEC_VOLTAGE_13:
                dprintk(1, "LNB SEC Voltage=13\n");
                cx_write(MO_GP0_IO, 0x00001220);
                break;
        case SEC_VOLTAGE_18:
                dprintk(1, "LNB SEC Voltage=18\n");
                cx_write(MO_GP0_IO, 0x00001222);
                break;
        case SEC_VOLTAGE_OFF:
                dprintk(1, "LNB Voltage OFF\n");
                cx_write(MO_GP0_IO, 0x00001230);
                break;
        }

        if (core->prev_set_voltage)
                return core->prev_set_voltage(fe, voltage);
        return 0;
}

static const struct cx24123_config geniatech_dvbs_config = {
        .demod_address = 0x55,
        .set_ts_params = cx24123_set_ts_param,
};

static const struct cx24123_config hauppauge_novas_config = {
        .demod_address = 0x55,
        .set_ts_params = cx24123_set_ts_param,
};

static const struct cx24123_config kworld_dvbs_100_config = {
        .demod_address = 0x15,
        .set_ts_params = cx24123_set_ts_param,
        .lnb_polarity  = 1,
};

static const struct s5h1409_config pinnacle_pctv_hd_800i_config = {
        .demod_address = 0x32 >> 1,
        .output_mode   = S5H1409_PARALLEL_OUTPUT,
        .gpio          = S5H1409_GPIO_ON,
        .qam_if        = 44000,
        .inversion     = S5H1409_INVERSION_OFF,
        .status_mode   = S5H1409_DEMODLOCKING,
        .mpeg_timing   = S5H1409_MPEGTIMING_NONCONTINUOUS_NONINVERTING_CLOCK,
};

static const struct s5h1409_config dvico_hdtv5_pci_nano_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_CONTINUOUS_NONINVERTING_CLOCK,
};

static const struct s5h1409_config kworld_atsc_120_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_CONTINUOUS_NONINVERTING_CLOCK,
};

static const struct xc5000_config pinnacle_pctv_hd_800i_tuner_config = {
        .i2c_address    = 0x64,
        .if_khz         = 5380,
};

static const struct zl10353_config cx88_pinnacle_hybrid_pctv = {
        .demod_address = (0x1e >> 1),
        .no_tuner      = 1,
        .if2           = 45600,
};

static const struct zl10353_config cx88_geniatech_x8000_mt = {
        .demod_address = (0x1e >> 1),
        .no_tuner = 1,
        .disable_i2c_gate_ctrl = 1,
};

static const struct s5h1411_config dvico_fusionhdtv7_config = {
        .output_mode   = S5H1411_SERIAL_OUTPUT,
        .gpio          = S5H1411_GPIO_ON,
        .mpeg_timing   = S5H1411_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
        .qam_if        = S5H1411_IF_44000,
        .vsb_if        = S5H1411_IF_44000,
        .inversion     = S5H1411_INVERSION_OFF,
        .status_mode   = S5H1411_DEMODLOCKING
};

static const struct xc5000_config dvico_fusionhdtv7_tuner_config = {
        .i2c_address    = 0xc2 >> 1,
        .if_khz         = 5380,
};

static int attach_xc3028(u8 addr, struct cx8802_dev *dev)
{
        struct dvb_frontend *fe;
        struct vb2_dvb_frontend *fe0 = NULL;
        struct xc2028_ctrl ctl;
        struct xc2028_config cfg = {
                .i2c_adap  = &dev->core->i2c_adap,
                .i2c_addr  = addr,
                .ctrl      = &ctl,
        };

        /* Get the first frontend */
        fe0 = vb2_dvb_get_frontend(&dev->frontends, 1);
        if (!fe0)
                return -EINVAL;

        if (!fe0->dvb.frontend) {
                pr_err("dvb frontend not attached. Can't attach xc3028\n");
                return -EINVAL;
        }

        /*
         * Some xc3028 devices may be hidden by an I2C gate. This is known
         * to happen with some s5h1409-based devices.
         * Now that I2C gate is open, sets up xc3028 configuration
         */
        cx88_setup_xc3028(dev->core, &ctl);

        fe = dvb_attach(xc2028_attach, fe0->dvb.frontend, &cfg);
        if (!fe) {
                pr_err("xc3028 attach failed\n");
                dvb_frontend_detach(fe0->dvb.frontend);
                dvb_unregister_frontend(fe0->dvb.frontend);
                fe0->dvb.frontend = NULL;
                return -EINVAL;
        }

        pr_info("xc3028 attached\n");

        return 0;
}

static int attach_xc4000(struct cx8802_dev *dev, struct xc4000_config *cfg)
{
        struct dvb_frontend *fe;
        struct vb2_dvb_frontend *fe0 = NULL;

        /* Get the first frontend */
        fe0 = vb2_dvb_get_frontend(&dev->frontends, 1);
        if (!fe0)
                return -EINVAL;

        if (!fe0->dvb.frontend) {
                pr_err("dvb frontend not attached. Can't attach xc4000\n");
                return -EINVAL;
        }

        fe = dvb_attach(xc4000_attach, fe0->dvb.frontend, &dev->core->i2c_adap,
                        cfg);
        if (!fe) {
                pr_err("xc4000 attach failed\n");
                dvb_frontend_detach(fe0->dvb.frontend);
                dvb_unregister_frontend(fe0->dvb.frontend);
                fe0->dvb.frontend = NULL;
                return -EINVAL;
        }

        pr_info("xc4000 attached\n");

        return 0;
}

static int cx24116_set_ts_param(struct dvb_frontend *fe,
                                int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = 0x2;

        return 0;
}

static int stv0900_set_ts_param(struct dvb_frontend *fe,
                                int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = 0;

        return 0;
}

static int cx24116_reset_device(struct dvb_frontend *fe)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        /* Reset the part */
        /* Put the cx24116 into reset */
        cx_write(MO_SRST_IO, 0);
        usleep_range(10000, 20000);
        /* Take the cx24116 out of reset */
        cx_write(MO_SRST_IO, 1);
        usleep_range(10000, 20000);

        return 0;
}

static const struct cx24116_config hauppauge_hvr4000_config = {
        .demod_address          = 0x05,
        .set_ts_params          = cx24116_set_ts_param,
        .reset_device           = cx24116_reset_device,
};

static const struct cx24116_config tevii_s460_config = {
        .demod_address = 0x55,
        .set_ts_params = cx24116_set_ts_param,
        .reset_device  = cx24116_reset_device,
};

static int ds3000_set_ts_param(struct dvb_frontend *fe,
                               int is_punctured)
{
        struct cx8802_dev *dev = fe->dvb->priv;

        dev->ts_gen_cntrl = 4;

        return 0;
}

static struct ds3000_config tevii_ds3000_config = {
        .demod_address = 0x68,
        .set_ts_params = ds3000_set_ts_param,
};

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

static const struct stv0900_config prof_7301_stv0900_config = {
        .demod_address = 0x6a,
/*      demod_mode = 0,*/
        .xtal = 27000000,
        .clkmode = 3,/* 0-CLKI, 2-XTALI, else AUTO */
        .diseqc_mode = 2,/* 2/3 PWM */
        .tun1_maddress = 0,/* 0x60 */
        .tun1_adc = 0,/* 2 Vpp */
        .path1_mode = 3,
        .set_ts_params = stv0900_set_ts_param,
};

static const struct stb6100_config prof_7301_stb6100_config = {
        .tuner_address = 0x60,
        .refclock = 27000000,
};

static const struct stv0299_config tevii_tuner_sharp_config = {
        .demod_address = 0x68,
        .inittab = sharp_z0194a_inittab,
        .mclk = 88000000UL,
        .invert = 1,
        .skip_reinit = 0,
        .lock_output = 1,
        .volt13_op0_op1 = STV0299_VOLT13_OP1,
        .min_delay_ms = 100,
        .set_symbol_rate = sharp_z0194a_set_symbol_rate,
        .set_ts_params = cx24116_set_ts_param,
};

static const struct stv0288_config tevii_tuner_earda_config = {
        .demod_address = 0x68,
        .min_delay_ms = 100,
        .set_ts_params = cx24116_set_ts_param,
};

static int cx8802_alloc_frontends(struct cx8802_dev *dev)
{
        struct cx88_core *core = dev->core;
        struct vb2_dvb_frontend *fe = NULL;
        int i;

        mutex_init(&dev->frontends.lock);
        INIT_LIST_HEAD(&dev->frontends.felist);

        if (!core->board.num_frontends)
                return -ENODEV;

        pr_info("%s: allocating %d frontend(s)\n", __func__,
                core->board.num_frontends);
        for (i = 1; i <= core->board.num_frontends; i++) {
                fe = vb2_dvb_alloc_frontend(&dev->frontends, i);
                if (!fe) {
                        pr_err("%s() failed to alloc\n", __func__);
                        vb2_dvb_dealloc_frontends(&dev->frontends);
                        return -ENOMEM;
                }
        }
        return 0;
}

static const u8 samsung_smt_7020_inittab[] = {
             0x01, 0x15,
             0x02, 0x00,
             0x03, 0x00,
             0x04, 0x7D,
             0x05, 0x0F,
             0x06, 0x02,
             0x07, 0x00,
             0x08, 0x60,

             0x0A, 0xC2,
             0x0B, 0x00,
             0x0C, 0x01,
             0x0D, 0x81,
             0x0E, 0x44,
             0x0F, 0x09,
             0x10, 0x3C,
             0x11, 0x84,
             0x12, 0xDA,
             0x13, 0x99,
             0x14, 0x8D,
             0x15, 0xCE,
             0x16, 0xE8,
             0x17, 0x43,
             0x18, 0x1C,
             0x19, 0x1B,
             0x1A, 0x1D,

             0x1C, 0x12,
             0x1D, 0x00,
             0x1E, 0x00,
             0x1F, 0x00,
             0x20, 0x00,
             0x21, 0x00,
             0x22, 0x00,
             0x23, 0x00,

             0x28, 0x02,
             0x29, 0x28,
             0x2A, 0x14,
             0x2B, 0x0F,
             0x2C, 0x09,
             0x2D, 0x05,

             0x31, 0x1F,
             0x32, 0x19,
             0x33, 0xFC,
             0x34, 0x13,
             0xff, 0xff,
};

static int samsung_smt_7020_tuner_set_params(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        struct cx8802_dev *dev = fe->dvb->priv;
        u8 buf[4];
        u32 div;
        struct i2c_msg msg = {
                .addr = 0x61,
                .flags = 0,
                .buf = buf,
                .len = sizeof(buf) };

        div = c->frequency / 125;

        buf[0] = (div >> 8) & 0x7f;
        buf[1] = div & 0xff;
        buf[2] = 0x84;  /* 0xC4 */
        buf[3] = 0x00;

        if (c->frequency < 1500000)
                buf[3] |= 0x10;

        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);

        if (i2c_transfer(&dev->core->i2c_adap, &msg, 1) != 1)
                return -EIO;

        return 0;
}

static int samsung_smt_7020_set_tone(struct dvb_frontend *fe,
                                     enum fe_sec_tone_mode tone)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        cx_set(MO_GP0_IO, 0x0800);

        switch (tone) {
        case SEC_TONE_ON:
                cx_set(MO_GP0_IO, 0x08);
                break;
        case SEC_TONE_OFF:
                cx_clear(MO_GP0_IO, 0x08);
                break;
        default:
                return -EINVAL;
        }

        return 0;
}

static int samsung_smt_7020_set_voltage(struct dvb_frontend *fe,
                                        enum fe_sec_voltage voltage)
{
        struct cx8802_dev *dev = fe->dvb->priv;
        struct cx88_core *core = dev->core;

        u8 data;
        struct i2c_msg msg = {
                .addr = 8,
                .flags = 0,
                .buf = &data,
                .len = sizeof(data) };

        cx_set(MO_GP0_IO, 0x8000);

        switch (voltage) {
        case SEC_VOLTAGE_OFF:
                break;
        case SEC_VOLTAGE_13:
                data = ISL6421_EN1 | ISL6421_LLC1;
                cx_clear(MO_GP0_IO, 0x80);
                break;
        case SEC_VOLTAGE_18:
                data = ISL6421_EN1 | ISL6421_LLC1 | ISL6421_VSEL1;
                cx_clear(MO_GP0_IO, 0x80);
                break;
        default:
                return -EINVAL;
        }

        return (i2c_transfer(&dev->core->i2c_adap, &msg, 1) == 1) ? 0 : -EIO;
}

static int samsung_smt_7020_stv0299_set_symbol_rate(struct dvb_frontend *fe,
                                                    u32 srate, u32 ratio)
{
        u8 aclk = 0;
        u8 bclk = 0;

        if (srate < 1500000) {
                aclk = 0xb7;
                bclk = 0x47;
        } else if (srate < 3000000) {
                aclk = 0xb7;
                bclk = 0x4b;
        } else if (srate < 7000000) {
                aclk = 0xb7;
                bclk = 0x4f;
        } else if (srate < 14000000) {
                aclk = 0xb7;
                bclk = 0x53;
        } else if (srate < 30000000) {
                aclk = 0xb6;
                bclk = 0x53;
        } else if (srate < 45000000) {
                aclk = 0xb4;
                bclk = 0x51;
        }

        stv0299_writereg(fe, 0x13, aclk);
        stv0299_writereg(fe, 0x14, bclk);
        stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
        stv0299_writereg(fe, 0x20, (ratio >>  8) & 0xff);
        stv0299_writereg(fe, 0x21, ratio & 0xf0);

        return 0;
}

static const struct stv0299_config samsung_stv0299_config = {
        .demod_address = 0x68,
        .inittab = samsung_smt_7020_inittab,
        .mclk = 88000000UL,
        .invert = 0,
        .skip_reinit = 0,
        .lock_output = STV0299_LOCKOUTPUT_LK,
        .volt13_op0_op1 = STV0299_VOLT13_OP1,
        .min_delay_ms = 100,
        .set_symbol_rate = samsung_smt_7020_stv0299_set_symbol_rate,
};

static int dvb_register(struct cx8802_dev *dev)
{
        struct cx88_core *core = dev->core;
        struct vb2_dvb_frontend *fe0, *fe1 = NULL;
        int mfe_shared = 0; /* bus not shared by default */
        int res = -EINVAL;

        if (core->i2c_rc != 0) {
                pr_err("no i2c-bus available, cannot attach dvb drivers\n");
                goto frontend_detach;
        }

        /* Get the first frontend */
        fe0 = vb2_dvb_get_frontend(&dev->frontends, 1);
        if (!fe0)
                goto frontend_detach;

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

        /* Sets the gate control callback to be used by i2c command calls */
        core->gate_ctrl = cx88_dvb_gate_ctrl;

        /* init frontend(s) */
        switch (core->boardnr) {
        case CX88_BOARD_HAUPPAUGE_DVB_T1:
                fe0->dvb.frontend = dvb_attach(cx22702_attach,
                                               &connexant_refboard_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x61, &core->i2c_adap,
                                        DVB_PLL_THOMSON_DTT759X))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
        case CX88_BOARD_CONEXANT_DVB_T1:
        case CX88_BOARD_KWORLD_DVB_T_CX22702:
        case CX88_BOARD_WINFAST_DTV1000:
                fe0->dvb.frontend = dvb_attach(cx22702_attach,
                                               &connexant_refboard_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x60, &core->i2c_adap,
                                        DVB_PLL_THOMSON_DTT7579))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_WINFAST_DTV2000H:
        case CX88_BOARD_HAUPPAUGE_HVR1100:
        case CX88_BOARD_HAUPPAUGE_HVR1100LP:
        case CX88_BOARD_HAUPPAUGE_HVR1300:
                fe0->dvb.frontend = dvb_attach(cx22702_attach,
                                               &hauppauge_hvr_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_PHILIPS_FMD1216ME_MK3))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_WINFAST_DTV2000H_J:
                fe0->dvb.frontend = dvb_attach(cx22702_attach,
                                               &hauppauge_hvr_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_PHILIPS_FMD1216MEX_MK3))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_HAUPPAUGE_HVR3000:
                /* MFE frontend 1 */
                mfe_shared = 1;
                dev->frontends.gate = 2;
                /* DVB-S init */
                fe0->dvb.frontend = dvb_attach(cx24123_attach,
                                               &hauppauge_novas_config,
                                               &dev->core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(isl6421_attach,
                                        fe0->dvb.frontend,
                                        &dev->core->i2c_adap,
                                        0x08, ISL6421_DCL, 0x00, false))
                                goto frontend_detach;
                }
                /* MFE frontend 2 */
                fe1 = vb2_dvb_get_frontend(&dev->frontends, 2);
                if (!fe1)
                        goto frontend_detach;
                /* DVB-T init */
                fe1->dvb.frontend = dvb_attach(cx22702_attach,
                                               &hauppauge_hvr_config,
                                               &dev->core->i2c_adap);
                if (fe1->dvb.frontend) {
                        fe1->dvb.frontend->id = 1;
                        if (!dvb_attach(simple_tuner_attach,
                                        fe1->dvb.frontend,
                                        &dev->core->i2c_adap,
                                        0x61, TUNER_PHILIPS_FMD1216ME_MK3))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS:
                fe0->dvb.frontend = dvb_attach(mt352_attach,
                                               &dvico_fusionhdtv,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x60, NULL, DVB_PLL_THOMSON_DTT7579))
                                goto frontend_detach;
                        break;
                }
                /* ZL10353 replaces MT352 on later cards */
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_plus_v1_1,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x60, NULL, DVB_PLL_THOMSON_DTT7579))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL:
                /*
                 * The tin box says DEE1601, but it seems to be DTT7579
                 * compatible, with a slightly different MT352 AGC gain.
                 */
                fe0->dvb.frontend = dvb_attach(mt352_attach,
                                               &dvico_fusionhdtv_dual,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x61, NULL, DVB_PLL_THOMSON_DTT7579))
                                goto frontend_detach;
                        break;
                }
                /* ZL10353 replaces MT352 on later cards */
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_plus_v1_1,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x61, NULL, DVB_PLL_THOMSON_DTT7579))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1:
                fe0->dvb.frontend = dvb_attach(mt352_attach,
                                               &dvico_fusionhdtv,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x61, NULL, DVB_PLL_LG_Z201))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_KWORLD_DVB_T:
        case CX88_BOARD_DNTV_LIVE_DVB_T:
        case CX88_BOARD_ADSTECH_DVB_T_PCI:
                fe0->dvb.frontend = dvb_attach(mt352_attach,
                                               &dntv_live_dvbt_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend,
                                        0x61, NULL, DVB_PLL_UNKNOWN_1))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
#if IS_ENABLED(CONFIG_VIDEO_CX88_VP3054)
                /* MT352 is on a secondary I2C bus made from some GPIO lines */
                fe0->dvb.frontend = dvb_attach(mt352_attach,
                                               &dntv_live_dvbt_pro_config,
                                               &dev->vp3054->adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_PHILIPS_FMD1216ME_MK3))
                                goto frontend_detach;
                }
#else
                pr_err("built without vp3054 support\n");
#endif
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_HYBRID:
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_hybrid,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_THOMSON_FE6600))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PRO:
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &dvico_fusionhdtv_xc3028,
                                               &core->i2c_adap);
                if (!fe0->dvb.frontend)
                        fe0->dvb.frontend = dvb_attach(mt352_attach,
                                                &dvico_fusionhdtv_mt352_xc3028,
                                                &core->i2c_adap);
                /*
                 * On this board, the demod provides the I2C bus pullup.
                 * We must not permit gate_ctrl to be performed, or
                 * the xc3028 cannot communicate on the bus.
                 */
                if (fe0->dvb.frontend)
                        fe0->dvb.frontend->ops.i2c_gate_ctrl = NULL;
                if (attach_xc3028(0x61, dev) < 0)
                        goto frontend_detach;
                break;
        case CX88_BOARD_PCHDTV_HD3000:
                fe0->dvb.frontend = dvb_attach(or51132_attach, &pchdtv_hd3000,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_THOMSON_DTT761X))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q:
                dev->ts_gen_cntrl = 0x08;

                /* Do a hardware reset of chip before using it. */
                cx_clear(MO_GP0_IO, 1);
                msleep(100);
                cx_set(MO_GP0_IO, 1);
                msleep(200);

                /* Select RF connector callback */
                fusionhdtv_3_gold.pll_rf_set = lgdt330x_pll_rf_set;
                fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
                                               &fusionhdtv_3_gold,
                                               0x0e,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_MICROTUNE_4042FI5))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T:
                dev->ts_gen_cntrl = 0x08;

                /* Do a hardware reset of chip before using it. */
                cx_clear(MO_GP0_IO, 1);
                msleep(100);
                cx_set(MO_GP0_IO, 9);
                msleep(200);
                fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
                                               &fusionhdtv_3_gold,
                                               0x0e,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_THOMSON_DTT761X))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
                dev->ts_gen_cntrl = 0x08;

                /* Do a hardware reset of chip before using it. */
                cx_clear(MO_GP0_IO, 1);
                msleep(100);
                cx_set(MO_GP0_IO, 1);
                msleep(200);
                fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
                                               &fusionhdtv_5_gold,
                                               0x0e,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_LG_TDVS_H06XF))
                                goto frontend_detach;
                        if (!dvb_attach(tda9887_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x43))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_PCHDTV_HD5500:
                dev->ts_gen_cntrl = 0x08;

                /* Do a hardware reset of chip before using it. */
                cx_clear(MO_GP0_IO, 1);
                msleep(100);
                cx_set(MO_GP0_IO, 1);
                msleep(200);
                fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
                                               &pchdtv_hd5500,
                                               0x59,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_LG_TDVS_H06XF))
                                goto frontend_detach;
                        if (!dvb_attach(tda9887_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x43))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_ATI_HDTVWONDER:
                fe0->dvb.frontend = dvb_attach(nxt200x_attach,
                                               &ati_hdtvwonder,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x61,
                                        TUNER_PHILIPS_TUV1236D))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
        case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
                fe0->dvb.frontend = dvb_attach(cx24123_attach,
                                               &hauppauge_novas_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        bool override_tone;

                        if (core->model == 92001)
                                override_tone = true;
                        else
                                override_tone = false;

                        if (!dvb_attach(isl6421_attach, fe0->dvb.frontend,
                                        &core->i2c_adap, 0x08, ISL6421_DCL,
                                        0x00, override_tone))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_KWORLD_DVBS_100:
                fe0->dvb.frontend = dvb_attach(cx24123_attach,
                                               &kworld_dvbs_100_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        core->prev_set_voltage = fe0->dvb.frontend->ops.set_voltage;
                        fe0->dvb.frontend->ops.set_voltage = kworld_dvbs_100_set_voltage;
                }
                break;
        case CX88_BOARD_GENIATECH_DVBS:
                fe0->dvb.frontend = dvb_attach(cx24123_attach,
                                               &geniatech_dvbs_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        core->prev_set_voltage = fe0->dvb.frontend->ops.set_voltage;
                        fe0->dvb.frontend->ops.set_voltage = geniatech_dvbs_set_voltage;
                }
                break;
        case CX88_BOARD_PINNACLE_PCTV_HD_800i:
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                               &pinnacle_pctv_hd_800i_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(xc5000_attach, fe0->dvb.frontend,
                                        &core->i2c_adap,
                                        &pinnacle_pctv_hd_800i_tuner_config))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO:
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                               &dvico_hdtv5_pci_nano_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        struct dvb_frontend *fe;
                        struct xc2028_config cfg = {
                                .i2c_adap  = &core->i2c_adap,
                                .i2c_addr  = 0x61,
                        };
                        static struct xc2028_ctrl ctl = {
                                .fname       = XC2028_DEFAULT_FIRMWARE,
                                .max_len     = 64,
                                .scode_table = XC3028_FE_OREN538,
                        };

                        fe = dvb_attach(xc2028_attach,
                                        fe0->dvb.frontend, &cfg);
                        if (fe && fe->ops.tuner_ops.set_config)
                                fe->ops.tuner_ops.set_config(fe, &ctl);
                }
                break;
        case CX88_BOARD_NOTONLYTV_LV3H:
        case CX88_BOARD_PINNACLE_HYBRID_PCTV:
        case CX88_BOARD_WINFAST_DTV1800H:
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &cx88_pinnacle_hybrid_pctv,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        fe0->dvb.frontend->ops.i2c_gate_ctrl = NULL;
                        if (attach_xc3028(0x61, dev) < 0)
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_WINFAST_DTV1800H_XC4000:
        case CX88_BOARD_WINFAST_DTV2000H_PLUS:
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &cx88_pinnacle_hybrid_pctv,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        struct xc4000_config cfg = {
                                .i2c_address      = 0x61,
                                .default_pm       = 0,
                                .dvb_amplitude    = 134,
                                .set_smoothedcvbs = 1,
                                .if_khz           = 4560
                        };
                        fe0->dvb.frontend->ops.i2c_gate_ctrl = NULL;
                        if (attach_xc4000(dev, &cfg) < 0)
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_GENIATECH_X8000_MT:
                dev->ts_gen_cntrl = 0x00;

                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &cx88_geniatech_x8000_mt,
                                               &core->i2c_adap);
                if (attach_xc3028(0x61, dev) < 0)
                        goto frontend_detach;
                break;
        case CX88_BOARD_KWORLD_ATSC_120:
                fe0->dvb.frontend = dvb_attach(s5h1409_attach,
                                               &kworld_atsc_120_config,
                                               &core->i2c_adap);
                if (attach_xc3028(0x61, dev) < 0)
                        goto frontend_detach;
                break;
        case CX88_BOARD_DVICO_FUSIONHDTV_7_GOLD:
                fe0->dvb.frontend = dvb_attach(s5h1411_attach,
                                               &dvico_fusionhdtv7_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(xc5000_attach, fe0->dvb.frontend,
                                        &core->i2c_adap,
                                        &dvico_fusionhdtv7_tuner_config))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_HAUPPAUGE_HVR4000:
                /* MFE frontend 1 */
                mfe_shared = 1;
                dev->frontends.gate = 2;
                /* DVB-S/S2 Init */
                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                                               &hauppauge_hvr4000_config,
                                               &dev->core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(isl6421_attach,
                                        fe0->dvb.frontend,
                                        &dev->core->i2c_adap,
                                        0x08, ISL6421_DCL, 0x00, false))
                                goto frontend_detach;
                }
                /* MFE frontend 2 */
                fe1 = vb2_dvb_get_frontend(&dev->frontends, 2);
                if (!fe1)
                        goto frontend_detach;
                /* DVB-T Init */
                fe1->dvb.frontend = dvb_attach(cx22702_attach,
                                               &hauppauge_hvr_config,
                                               &dev->core->i2c_adap);
                if (fe1->dvb.frontend) {
                        fe1->dvb.frontend->id = 1;
                        if (!dvb_attach(simple_tuner_attach,
                                        fe1->dvb.frontend,
                                        &dev->core->i2c_adap,
                                        0x61, TUNER_PHILIPS_FMD1216ME_MK3))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                                               &hauppauge_hvr4000_config,
                                               &dev->core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(isl6421_attach,
                                        fe0->dvb.frontend,
                                        &dev->core->i2c_adap,
                                        0x08, ISL6421_DCL, 0x00, false))
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_PROF_6200:
        case CX88_BOARD_TBS_8910:
        case CX88_BOARD_TEVII_S420:
                fe0->dvb.frontend = dvb_attach(stv0299_attach,
                                                &tevii_tuner_sharp_config,
                                                &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(dvb_pll_attach, fe0->dvb.frontend, 0x60,
                                        &core->i2c_adap, DVB_PLL_OPERA1))
                                goto frontend_detach;
                        core->prev_set_voltage = fe0->dvb.frontend->ops.set_voltage;
                        fe0->dvb.frontend->ops.set_voltage = tevii_dvbs_set_voltage;

                } else {
                        fe0->dvb.frontend = dvb_attach(stv0288_attach,
                                                            &tevii_tuner_earda_config,
                                                            &core->i2c_adap);
                        if (fe0->dvb.frontend) {
                                if (!dvb_attach(stb6000_attach,
                                                fe0->dvb.frontend, 0x61,
                                                &core->i2c_adap))
                                        goto frontend_detach;
                                core->prev_set_voltage = fe0->dvb.frontend->ops.set_voltage;
                                fe0->dvb.frontend->ops.set_voltage = tevii_dvbs_set_voltage;
                        }
                }
                break;
        case CX88_BOARD_TEVII_S460:
                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                                               &tevii_s460_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend)
                        fe0->dvb.frontend->ops.set_voltage = tevii_dvbs_set_voltage;
                break;
        case CX88_BOARD_TEVII_S464:
                fe0->dvb.frontend = dvb_attach(ds3000_attach,
                                                &tevii_ds3000_config,
                                                &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        dvb_attach(ts2020_attach, fe0->dvb.frontend,
                                   &tevii_ts2020_config, &core->i2c_adap);
                        fe0->dvb.frontend->ops.set_voltage =
                                                        tevii_dvbs_set_voltage;
                }
                break;
        case CX88_BOARD_OMICOM_SS4_PCI:
        case CX88_BOARD_TBS_8920:
        case CX88_BOARD_PROF_7300:
        case CX88_BOARD_SATTRADE_ST4200:
                fe0->dvb.frontend = dvb_attach(cx24116_attach,
                                               &hauppauge_hvr4000_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend)
                        fe0->dvb.frontend->ops.set_voltage = tevii_dvbs_set_voltage;
                break;
        case CX88_BOARD_TERRATEC_CINERGY_HT_PCI_MKII:
                fe0->dvb.frontend = dvb_attach(zl10353_attach,
                                               &cx88_terratec_cinergy_ht_pci_mkii_config,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        fe0->dvb.frontend->ops.i2c_gate_ctrl = NULL;
                        if (attach_xc3028(0x61, dev) < 0)
                                goto frontend_detach;
                }
                break;
        case CX88_BOARD_PROF_7301:{
                struct dvb_tuner_ops *tuner_ops = NULL;

                fe0->dvb.frontend = dvb_attach(stv0900_attach,
                                               &prof_7301_stv0900_config,
                                               &core->i2c_adap, 0);
                if (fe0->dvb.frontend) {
                        if (!dvb_attach(stb6100_attach, fe0->dvb.frontend,
                                        &prof_7301_stb6100_config,
                                        &core->i2c_adap))
                                goto frontend_detach;

                        tuner_ops = &fe0->dvb.frontend->ops.tuner_ops;
                        tuner_ops->set_frequency = stb6100_set_freq;
                        tuner_ops->get_frequency = stb6100_get_freq;
                        tuner_ops->set_bandwidth = stb6100_set_bandw;
                        tuner_ops->get_bandwidth = stb6100_get_bandw;

                        core->prev_set_voltage =
                                        fe0->dvb.frontend->ops.set_voltage;
                        fe0->dvb.frontend->ops.set_voltage =
                                        tevii_dvbs_set_voltage;
                }
                break;
                }
        case CX88_BOARD_SAMSUNG_SMT_7020:
                dev->ts_gen_cntrl = 0x08;

                cx_set(MO_GP0_IO, 0x0101);

                cx_clear(MO_GP0_IO, 0x01);
                msleep(100);
                cx_set(MO_GP0_IO, 0x01);
                msleep(200);

                fe0->dvb.frontend = dvb_attach(stv0299_attach,
                                               &samsung_stv0299_config,
                                               &dev->core->i2c_adap);
                if (fe0->dvb.frontend) {
                        fe0->dvb.frontend->ops.tuner_ops.set_params =
                                samsung_smt_7020_tuner_set_params;
                        fe0->dvb.frontend->tuner_priv =
                                &dev->core->i2c_adap;
                        fe0->dvb.frontend->ops.set_voltage =
                                samsung_smt_7020_set_voltage;
                        fe0->dvb.frontend->ops.set_tone =
                                samsung_smt_7020_set_tone;
                }

                break;
        case CX88_BOARD_TWINHAN_VP1027_DVBS:
                dev->ts_gen_cntrl = 0x00;
                fe0->dvb.frontend = dvb_attach(mb86a16_attach,
                                               &twinhan_vp1027,
                                               &core->i2c_adap);
                if (fe0->dvb.frontend) {
                        core->prev_set_voltage =
                                        fe0->dvb.frontend->ops.set_voltage;
                        fe0->dvb.frontend->ops.set_voltage =
                                        vp1027_set_voltage;
                }
                break;

        default:
                pr_err("The frontend of your DVB/ATSC card isn't supported yet\n");
                break;
        }

        if ((NULL == fe0->dvb.frontend) || (fe1 && NULL == fe1->dvb.frontend)) {
                pr_err("frontend initialization failed\n");
                goto frontend_detach;
        }
        /* define general-purpose callback pointer */
        fe0->dvb.frontend->callback = cx88_tuner_callback;

        /* Ensure all frontends negotiate bus access */
        fe0->dvb.frontend->ops.ts_bus_ctrl = cx88_dvb_bus_ctrl;
        if (fe1)
                fe1->dvb.frontend->ops.ts_bus_ctrl = cx88_dvb_bus_ctrl;

        /* Put the tuner in standby to keep it quiet */
        call_all(core, tuner, standby);

        /* register everything */
        res = vb2_dvb_register_bus(&dev->frontends, THIS_MODULE, dev,
                                   &dev->pci->dev, NULL, adapter_nr,
                                   mfe_shared);
        if (res)
                goto frontend_detach;
        return res;

frontend_detach:
        core->gate_ctrl = NULL;
        vb2_dvb_dealloc_frontends(&dev->frontends);
        return res;
}

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

/* CX8802 MPEG -> mini driver - We have been given the hardware */
static int cx8802_dvb_advise_acquire(struct cx8802_driver *drv)
{
        struct cx88_core *core = drv->core;
        int err = 0;

        dprintk(1, "%s\n", __func__);

        switch (core->boardnr) {
        case CX88_BOARD_HAUPPAUGE_HVR1300:
                /* We arrive here with either the cx23416 or the cx22702
                 * on the bus. Take the bus from the cx23416 and enable the
                 * cx22702 demod
                 */
                /* Toggle reset on cx22702 leaving i2c active */
                cx_set(MO_GP0_IO, 0x00000080);
                udelay(1000);
                cx_clear(MO_GP0_IO, 0x00000080);
                udelay(50);
                cx_set(MO_GP0_IO, 0x00000080);
                udelay(1000);
                /* enable the cx22702 pins */
                cx_clear(MO_GP0_IO, 0x00000004);
                udelay(1000);
                break;

        case CX88_BOARD_HAUPPAUGE_HVR3000:
        case CX88_BOARD_HAUPPAUGE_HVR4000:
                /* Toggle reset on cx22702 leaving i2c active */
                cx_set(MO_GP0_IO, 0x00000080);
                udelay(1000);
                cx_clear(MO_GP0_IO, 0x00000080);
                udelay(50);
                cx_set(MO_GP0_IO, 0x00000080);
                udelay(1000);
                switch (core->dvbdev->frontends.active_fe_id) {
                case 1: /* DVB-S/S2 Enabled */
                        /* tri-state the cx22702 pins */
                        cx_set(MO_GP0_IO, 0x00000004);
                        /* Take the cx24116/cx24123 out of reset */
                        cx_write(MO_SRST_IO, 1);
                        core->dvbdev->ts_gen_cntrl = 0x02; /* Parallel IO */
                        break;
                case 2: /* DVB-T Enabled */
                        /* Put the cx24116/cx24123 into reset */
                        cx_write(MO_SRST_IO, 0);
                        /* enable the cx22702 pins */
                        cx_clear(MO_GP0_IO, 0x00000004);
                        core->dvbdev->ts_gen_cntrl = 0x0c; /* Serial IO */
                        break;
                }
                udelay(1000);
                break;

        case CX88_BOARD_WINFAST_DTV2000H_PLUS:
                /* set RF input to AIR for DVB-T (GPIO 16) */
                cx_write(MO_GP2_IO, 0x0101);
                break;

        default:
                err = -ENODEV;
        }
        return err;
}

/* CX8802 MPEG -> mini driver - We no longer have the hardware */
static int cx8802_dvb_advise_release(struct cx8802_driver *drv)
{
        struct cx88_core *core = drv->core;
        int err = 0;

        dprintk(1, "%s\n", __func__);

        switch (core->boardnr) {
        case CX88_BOARD_HAUPPAUGE_HVR1300:
                /* Do Nothing, leave the cx22702 on the bus. */
                break;
        case CX88_BOARD_HAUPPAUGE_HVR3000:
        case CX88_BOARD_HAUPPAUGE_HVR4000:
                break;
        default:
                err = -ENODEV;
        }
        return err;
}

static int cx8802_dvb_probe(struct cx8802_driver *drv)
{
        struct cx88_core *core = drv->core;
        struct cx8802_dev *dev = drv->core->dvbdev;
        int err;
        struct vb2_dvb_frontend *fe;
        int i;

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

        err = -ENODEV;
        if (!(core->board.mpeg & CX88_MPEG_DVB))
                goto fail_core;

        /* If vp3054 isn't enabled, a stub will just return 0 */
        err = vp3054_i2c_probe(dev);
        if (err != 0)
                goto fail_core;

        /* dvb stuff */
        pr_info("cx2388x based DVB/ATSC card\n");
        dev->ts_gen_cntrl = 0x0c;

        err = cx8802_alloc_frontends(dev);
        if (err)
                goto fail_core;

        for (i = 1; i <= core->board.num_frontends; i++) {
                struct vb2_queue *q;

                fe = vb2_dvb_get_frontend(&core->dvbdev->frontends, i);
                if (!fe) {
                        pr_err("%s() failed to get frontend(%d)\n",
                               __func__, i);
                        err = -ENODEV;
                        goto fail_probe;
                }
                q = &fe->dvb.dvbq;
                q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
                q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
                q->gfp_flags = GFP_DMA32;
                q->min_queued_buffers = 2;
                q->drv_priv = dev;
                q->buf_struct_size = sizeof(struct cx88_buffer);
                q->ops = &dvb_qops;
                q->mem_ops = &vb2_dma_sg_memops;
                q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
                q->lock = &core->lock;
                q->dev = &dev->pci->dev;

                err = vb2_queue_init(q);
                if (err < 0)
                        goto fail_probe;

                /* init struct vb2_dvb */
                fe->dvb.name = dev->core->name;
        }

        err = dvb_register(dev);
        if (err)
                /* frontends/adapter de-allocated in dvb_register */
                pr_err("dvb_register failed (err = %d)\n", err);
        return err;
fail_probe:
        vb2_dvb_dealloc_frontends(&core->dvbdev->frontends);
fail_core:
        return err;
}

static int cx8802_dvb_remove(struct cx8802_driver *drv)
{
        struct cx88_core *core = drv->core;
        struct cx8802_dev *dev = drv->core->dvbdev;

        dprintk(1, "%s\n", __func__);

        vb2_dvb_unregister_bus(&dev->frontends);

        vp3054_i2c_remove(dev);

        core->gate_ctrl = NULL;

        return 0;
}

static struct cx8802_driver cx8802_dvb_driver = {
        .type_id        = CX88_MPEG_DVB,
        .hw_access      = CX8802_DRVCTL_SHARED,
        .probe          = cx8802_dvb_probe,
        .remove         = cx8802_dvb_remove,
        .advise_acquire = cx8802_dvb_advise_acquire,
        .advise_release = cx8802_dvb_advise_release,
};

static int __init dvb_init(void)
{
        pr_info("cx2388x dvb driver version %s loaded\n", CX88_VERSION);
        return cx8802_register_driver(&cx8802_dvb_driver);
}

static void __exit dvb_fini(void)
{
        cx8802_unregister_driver(&cx8802_dvb_driver);
}

module_init(dvb_init);
module_exit(dvb_fini);