// SPDX-License-Identifier: GPL-2.0-only
/* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
 *
 * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
 *
 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
 */

#include "m920x.h"

#include "mt352.h"
#include "mt352_priv.h"
#include "qt1010.h"
#include "tda1004x.h"
#include "tda827x.h"
#include "mt2060.h"

#include <media/tuner.h>
#include "tuner-simple.h"
#include <linux/unaligned.h>

/* debug */
static int dvb_usb_m920x_debug;
module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static int m920x_set_filter(struct dvb_usb_device *d, int type, int idx, int pid);

static inline int m920x_read(struct usb_device *udev, u8 request, u16 value,
                             u16 index, void *data, int size)
{
        int ret;

        ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
                              request, USB_TYPE_VENDOR | USB_DIR_IN,
                              value, index, data, size, 2000);
        if (ret < 0) {
                printk(KERN_INFO "m920x_read = error: %d\n", ret);
                return ret;
        }

        if (ret != size) {
                deb("m920x_read = no data\n");
                return -EIO;
        }

        return 0;
}

static inline int m920x_write(struct usb_device *udev, u8 request,
                              u16 value, u16 index)
{
        return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), request,
                               USB_TYPE_VENDOR | USB_DIR_OUT, value, index,
                               NULL, 0, 2000);
}

static inline int m920x_write_seq(struct usb_device *udev, u8 request,
                                  struct m920x_inits *seq)
{
        int ret;
        do {
                ret = m920x_write(udev, request, seq->data, seq->address);
                if (ret != 0)
                        return ret;

                seq++;
        } while (seq->address);

        return 0;
}

static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq)
{
        int ret, i, epi, flags = 0;
        int adap_enabled[M9206_MAX_ADAPTERS] = { 0 };

        /* Remote controller init. */
        if (d->props.rc.legacy.rc_query || d->props.rc.core.rc_query) {
                deb("Initialising remote control\n");
                ret = m920x_write_seq(d->udev, M9206_CORE, rc_seq);
                if (ret != 0) {
                        deb("Initialising remote control failed\n");
                        return ret;
                }

                deb("Initialising remote control success\n");
        }

        for (i = 0; i < d->props.num_adapters; i++)
                flags |= d->adapter[i].props.fe[0].caps;

        /* Some devices(Dposh) might crash if we attempt touch at all. */
        if (flags & DVB_USB_ADAP_HAS_PID_FILTER) {
                for (i = 0; i < d->props.num_adapters; i++) {
                        epi = d->adapter[i].props.fe[0].stream.endpoint - 0x81;

                        if (epi < 0 || epi >= M9206_MAX_ADAPTERS) {
                                printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n");
                                return -EINVAL;
                        }

                        adap_enabled[epi] = 1;
                }

                for (i = 0; i < M9206_MAX_ADAPTERS; i++) {
                        if (adap_enabled[i])
                                continue;

                        if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0)
                                return ret;

                        if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0)
                                return ret;
                }
        }

        return 0;
}

static int m920x_init_ep(struct usb_interface *intf)
{
        struct usb_device *udev = interface_to_usbdev(intf);
        struct usb_host_interface *alt;

        if ((alt = usb_altnum_to_altsetting(intf, 1)) == NULL) {
                deb("No alt found!\n");
                return -ENODEV;
        }

        return usb_set_interface(udev, alt->desc.bInterfaceNumber,
                                 alt->desc.bAlternateSetting);
}

static inline void m920x_parse_rc_state(struct dvb_usb_device *d, u8 rc_state,
                                        int *state)
{
        struct m920x_state *m = d->priv;

        switch (rc_state) {
        case 0x80:
                *state = REMOTE_NO_KEY_PRESSED;
                break;

        case 0x88: /* framing error or "invalid code" */
        case 0x99:
        case 0xc0:
        case 0xd8:
                *state = REMOTE_NO_KEY_PRESSED;
                m->rep_count = 0;
                break;

        case 0x93:
        case 0x92:
        case 0x83: /* pinnacle PCTV310e */
        case 0x82:
                m->rep_count = 0;
                *state = REMOTE_KEY_PRESSED;
                break;

        case 0x91:
        case 0x81: /* pinnacle PCTV310e */
                /* prevent immediate auto-repeat */
                if (++m->rep_count > 2)
                        *state = REMOTE_KEY_REPEAT;
                else
                        *state = REMOTE_NO_KEY_PRESSED;
                break;

        default:
                deb("Unexpected rc state %02x\n", rc_state);
                *state = REMOTE_NO_KEY_PRESSED;
                break;
        }
}

static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
        int i, ret = 0;
        u8 *rc_state;

        rc_state = kmalloc(2, GFP_KERNEL);
        if (!rc_state)
                return -ENOMEM;

        ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE,
                         rc_state, 1);
        if (ret != 0)
                goto out;

        ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY,
                         rc_state + 1, 1);
        if (ret != 0)
                goto out;

        m920x_parse_rc_state(d, rc_state[0], state);

        for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
                if (rc5_data(&d->props.rc.legacy.rc_map_table[i]) == rc_state[1]) {
                        *event = d->props.rc.legacy.rc_map_table[i].keycode;
                        goto out;
                }

        if (rc_state[1] != 0)
                deb("Unknown rc key %02x\n", rc_state[1]);

        *state = REMOTE_NO_KEY_PRESSED;

 out:
        kfree(rc_state);
        return ret;
}

static int m920x_rc_core_query(struct dvb_usb_device *d)
{
        int ret = 0;
        u8 *rc_state;
        int state;

        rc_state = kmalloc(2, GFP_KERNEL);
        if (!rc_state)
                return -ENOMEM;

        if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, &rc_state[0], 1)) != 0)
                goto out;

        if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, &rc_state[1], 1)) != 0)
                goto out;

        deb("state=0x%02x keycode=0x%02x\n", rc_state[0], rc_state[1]);

        m920x_parse_rc_state(d, rc_state[0], &state);

        if (state == REMOTE_NO_KEY_PRESSED)
                rc_keyup(d->rc_dev);
        else if (state == REMOTE_KEY_REPEAT)
                rc_repeat(d->rc_dev);
        else
                rc_keydown(d->rc_dev, RC_PROTO_UNKNOWN, rc_state[1], 0);

out:
        kfree(rc_state);
        return ret;
}

/* I2C */
static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
        struct dvb_usb_device *d = i2c_get_adapdata(adap);
        int i, j;
        int ret = 0;

        if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
                return -EAGAIN;

        for (i = 0; i < num; i++) {
                if (msg[i].flags & (I2C_M_NO_RD_ACK | I2C_M_IGNORE_NAK | I2C_M_TEN) || msg[i].len == 0) {
                        /* For a 0 byte message, I think sending the address
                         * to index 0x80|0x40 would be the correct thing to
                         * do.  However, zero byte messages are only used for
                         * probing, and since we don't know how to get the
                         * slave's ack, we can't probe. */
                        ret = -ENOTSUPP;
                        goto unlock;
                }
                /* Send START & address/RW bit */
                if (!(msg[i].flags & I2C_M_NOSTART)) {
                        if ((ret = m920x_write(d->udev, M9206_I2C,
                                        (msg[i].addr << 1) |
                                        (msg[i].flags & I2C_M_RD ? 0x01 : 0), 0x80)) != 0)
                                goto unlock;
                        /* Should check for ack here, if we knew how. */
                }
                if (msg[i].flags & I2C_M_RD) {
                        char *read = kmalloc(1, GFP_KERNEL);
                        if (!read) {
                                ret = -ENOMEM;
                                goto unlock;
                        }

                        for (j = 0; j < msg[i].len; j++) {
                                /* Last byte of transaction?
                                 * Send STOP, otherwise send ACK. */
                                int stop = (i+1 == num && j+1 == msg[i].len) ? 0x40 : 0x01;

                                if ((ret = m920x_read(d->udev, M9206_I2C, 0x0,
                                                      0x20 | stop,
                                                      read, 1)) != 0) {
                                        kfree(read);
                                        goto unlock;
                                }
                                msg[i].buf[j] = read[0];
                        }

                        kfree(read);
                } else {
                        for (j = 0; j < msg[i].len; j++) {
                                /* Last byte of transaction? Then send STOP. */
                                int stop = (i+1 == num && j+1 == msg[i].len) ? 0x40 : 0x00;

                                if ((ret = m920x_write(d->udev, M9206_I2C, msg[i].buf[j], stop)) != 0)
                                        goto unlock;
                                /* Should check for ack here too. */
                        }
                }
        }
        ret = num;

 unlock:
        mutex_unlock(&d->i2c_mutex);

        return ret;
}

static u32 m920x_i2c_func(struct i2c_adapter *adapter)
{
        return I2C_FUNC_I2C;
}

static const struct i2c_algorithm m920x_i2c_algo = {
        .master_xfer   = m920x_i2c_xfer,
        .functionality = m920x_i2c_func,
};

/* pid filter */
static int m920x_set_filter(struct dvb_usb_device *d, int type, int idx, int pid)
{
        int ret = 0;

        if (pid >= 0x8000)
                return -EINVAL;

        pid |= 0x8000;

        if ((ret = m920x_write(d->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
                return ret;

        if ((ret = m920x_write(d->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
                return ret;

        return ret;
}

static int m920x_update_filters(struct dvb_usb_adapter *adap)
{
        struct m920x_state *m = adap->dev->priv;
        int enabled = m->filtering_enabled[adap->id];
        int i, ret = 0, filter = 0;
        int ep = adap->props.fe[0].stream.endpoint;

        for (i = 0; i < M9206_MAX_FILTERS; i++)
                if (m->filters[adap->id][i] == 8192)
                        enabled = 0;

        /* Disable all filters */
        if ((ret = m920x_set_filter(adap->dev, ep, 1, enabled)) != 0)
                return ret;

        for (i = 0; i < M9206_MAX_FILTERS; i++)
                if ((ret = m920x_set_filter(adap->dev, ep, i + 2, 0)) != 0)
                        return ret;

        /* Set */
        if (enabled) {
                for (i = 0; i < M9206_MAX_FILTERS; i++) {
                        if (m->filters[adap->id][i] == 0)
                                continue;

                        if ((ret = m920x_set_filter(adap->dev, ep, filter + 2, m->filters[adap->id][i])) != 0)
                                return ret;

                        filter++;
                }
        }

        return ret;
}

static int m920x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
        struct m920x_state *m = adap->dev->priv;

        m->filtering_enabled[adap->id] = onoff ? 1 : 0;

        return m920x_update_filters(adap);
}

static int m920x_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
{
        struct m920x_state *m = adap->dev->priv;

        m->filters[adap->id][index] = onoff ? pid : 0;

        return m920x_update_filters(adap);
}

static int m920x_firmware_download(struct usb_device *udev, const struct firmware *fw)
{
        u16 value, index, size;
        u8 *read, *buff;
        int i, pass, ret = 0;

        buff = kmalloc(65536, GFP_KERNEL);
        if (buff == NULL)
                return -ENOMEM;

        read = kmalloc(4, GFP_KERNEL);
        if (!read) {
                kfree(buff);
                return -ENOMEM;
        }

        if ((ret = m920x_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
                goto done;
        deb("%*ph\n", 4, read);

        if ((ret = m920x_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
                goto done;
        deb("%x\n", read[0]);

        for (pass = 0; pass < 2; pass++) {
                for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
                        value = get_unaligned_le16(fw->data + i);
                        i += sizeof(u16);

                        index = get_unaligned_le16(fw->data + i);
                        i += sizeof(u16);

                        size = get_unaligned_le16(fw->data + i);
                        i += sizeof(u16);

                        if (pass == 1) {
                                /* Will stall if using fw->data ... */
                                memcpy(buff, fw->data + i, size);

                                ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
                                                      M9206_FW,
                                                      USB_TYPE_VENDOR | USB_DIR_OUT,
                                                      value, index, buff, size, 20);
                                if (ret != size) {
                                        deb("error while uploading fw!\n");
                                        ret = -EIO;
                                        goto done;
                                }
                                msleep(3);
                        }
                        i += size;
                }
                if (i != fw->size) {
                        deb("bad firmware file!\n");
                        ret = -EINVAL;
                        goto done;
                }
        }

        msleep(36);

        /* m920x will disconnect itself from the bus after this. */
        (void) m920x_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
        deb("firmware uploaded!\n");

 done:
        kfree(read);
        kfree(buff);

        return ret;
}

/* Callbacks for DVB USB */
static int m920x_identify_state(struct usb_device *udev,
                                const struct dvb_usb_device_properties *props,
                                const struct dvb_usb_device_description **desc,
                                int *cold)
{
        struct usb_host_interface *alt;

        alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
        *cold = (alt == NULL) ? 1 : 0;

        return 0;
}

/* demod configurations */
static int m920x_mt352_demod_init(struct dvb_frontend *fe)
{
        int ret;
        static const u8 config[] = { CONFIG, 0x3d };
        static const u8 clock[] = { CLOCK_CTL, 0x30 };
        static const u8 reset[] = { RESET, 0x80 };
        static const u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
        static const u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
        static const u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
        static const u8 unk1[] = { 0x93, 0x1a };
        static const u8 unk2[] = { 0xb5, 0x7a };

        deb("Demod init!\n");

        if ((ret = mt352_write(fe, config, ARRAY_SIZE(config))) != 0)
                return ret;
        if ((ret = mt352_write(fe, clock, ARRAY_SIZE(clock))) != 0)
                return ret;
        if ((ret = mt352_write(fe, reset, ARRAY_SIZE(reset))) != 0)
                return ret;
        if ((ret = mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl))) != 0)
                return ret;
        if ((ret = mt352_write(fe, agc, ARRAY_SIZE(agc))) != 0)
                return ret;
        if ((ret = mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc))) != 0)
                return ret;
        if ((ret = mt352_write(fe, unk1, ARRAY_SIZE(unk1))) != 0)
                return ret;
        if ((ret = mt352_write(fe, unk2, ARRAY_SIZE(unk2))) != 0)
                return ret;

        return 0;
}

static struct mt352_config m920x_mt352_config = {
        .demod_address = 0x0f,
        .no_tuner = 1,
        .demod_init = m920x_mt352_demod_init,
};

static struct tda1004x_config m920x_tda10046_08_config = {
        .demod_address = 0x08,
        .invert = 0,
        .invert_oclk = 0,
        .ts_mode = TDA10046_TS_SERIAL,
        .xtal_freq = TDA10046_XTAL_16M,
        .if_freq = TDA10046_FREQ_045,
        .agc_config = TDA10046_AGC_TDA827X,
        .gpio_config = TDA10046_GPTRI,
        .request_firmware = NULL,
};

static struct tda1004x_config m920x_tda10046_0b_config = {
        .demod_address = 0x0b,
        .invert = 0,
        .invert_oclk = 0,
        .ts_mode = TDA10046_TS_SERIAL,
        .xtal_freq = TDA10046_XTAL_16M,
        .if_freq = TDA10046_FREQ_045,
        .agc_config = TDA10046_AGC_TDA827X,
        .gpio_config = TDA10046_GPTRI,
        .request_firmware = NULL, /* uses firmware EEPROM */
};

/* tuner configurations */
static struct qt1010_config m920x_qt1010_config = {
        .i2c_address = 0x62
};

static struct mt2060_config m920x_mt2060_config = {
        .i2c_address = 0x60, /* 0xc0 */
        .clock_out = 0,
};


/* Callbacks for DVB USB */
static int m920x_mt352_frontend_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        adap->fe_adap[0].fe = dvb_attach(mt352_attach,
                                         &m920x_mt352_config,
                                         &adap->dev->i2c_adap);
        if ((adap->fe_adap[0].fe) == NULL)
                return -EIO;

        return 0;
}

static int m920x_mt352_frontend_attach_vp7049(struct dvb_usb_adapter *adap)
{
        struct m920x_inits vp7049_fe_init_seq[] = {
                /* XXX without these commands the frontend cannot be detected,
                 * they must be sent BEFORE the frontend is attached */
                { 0xff28,         0x00 },
                { 0xff23,         0x00 },
                { 0xff28,         0x00 },
                { 0xff23,         0x00 },
                { 0xff21,         0x20 },
                { 0xff21,         0x60 },
                { 0xff28,         0x00 },
                { 0xff22,         0x00 },
                { 0xff20,         0x30 },
                { 0xff20,         0x20 },
                { 0xff20,         0x30 },
                { } /* terminating entry */
        };
        int ret;

        deb("%s\n", __func__);

        ret = m920x_write_seq(adap->dev->udev, M9206_CORE, vp7049_fe_init_seq);
        if (ret != 0) {
                deb("Initialization of vp7049 frontend failed.");
                return ret;
        }

        return m920x_mt352_frontend_attach(adap);
}

static int m920x_tda10046_08_frontend_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
                                         &m920x_tda10046_08_config,
                                         &adap->dev->i2c_adap);
        if ((adap->fe_adap[0].fe) == NULL)
                return -EIO;

        return 0;
}

static int m920x_tda10046_0b_frontend_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
                                         &m920x_tda10046_0b_config,
                                         &adap->dev->i2c_adap);
        if ((adap->fe_adap[0].fe) == NULL)
                return -EIO;

        return 0;
}

static int m920x_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        if (dvb_attach(qt1010_attach, adap->fe_adap[0].fe, &adap->dev->i2c_adap, &m920x_qt1010_config) == NULL)
                return -ENODEV;

        return 0;
}

static int m920x_tda8275_60_tuner_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        if (dvb_attach(tda827x_attach, adap->fe_adap[0].fe, 0x60, &adap->dev->i2c_adap, NULL) == NULL)
                return -ENODEV;

        return 0;
}

static int m920x_tda8275_61_tuner_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n",__func__);

        if (dvb_attach(tda827x_attach, adap->fe_adap[0].fe, 0x61, &adap->dev->i2c_adap, NULL) == NULL)
                return -ENODEV;

        return 0;
}

static int m920x_fmd1216me_tuner_attach(struct dvb_usb_adapter *adap)
{
        dvb_attach(simple_tuner_attach, adap->fe_adap[0].fe,
                   &adap->dev->i2c_adap, 0x61,
                   TUNER_PHILIPS_FMD1216ME_MK3);
        return 0;
}

static int m920x_mt2060_tuner_attach(struct dvb_usb_adapter *adap)
{
        deb("%s\n", __func__);

        if (dvb_attach(mt2060_attach, adap->fe_adap[0].fe, &adap->dev->i2c_adap,
                       &m920x_mt2060_config, 1220) == NULL)
                return -ENODEV;

        return 0;
}


/* device-specific initialization */
static struct m920x_inits megasky_rc_init [] = {
        { M9206_RC_INIT2, 0xa8 },
        { M9206_RC_INIT1, 0x51 },
        { } /* terminating entry */
};

static struct m920x_inits tvwalkertwin_rc_init [] = {
        { M9206_RC_INIT2, 0x00 },
        { M9206_RC_INIT1, 0xef },
        { 0xff28,         0x00 },
        { 0xff23,         0x00 },
        { 0xff21,         0x30 },
        { } /* terminating entry */
};

static struct m920x_inits pinnacle310e_init[] = {
        /* without these the tuner doesn't work */
        { 0xff20,         0x9b },
        { 0xff22,         0x70 },

        /* rc settings */
        { 0xff50,         0x80 },
        { M9206_RC_INIT1, 0x00 },
        { M9206_RC_INIT2, 0xff },
        { } /* terminating entry */
};

static struct m920x_inits vp7049_rc_init[] = {
        { 0xff28,         0x00 },
        { 0xff23,         0x00 },
        { 0xff21,         0x70 },
        { M9206_RC_INIT2, 0x00 },
        { M9206_RC_INIT1, 0xff },
        { } /* terminating entry */
};

/* ir keymaps */
static struct rc_map_table rc_map_megasky_table[] = {
        { 0x0012, KEY_POWER },
        { 0x001e, KEY_CYCLEWINDOWS }, /* min/max */
        { 0x0002, KEY_CHANNELUP },
        { 0x0005, KEY_CHANNELDOWN },
        { 0x0003, KEY_VOLUMEUP },
        { 0x0006, KEY_VOLUMEDOWN },
        { 0x0004, KEY_MUTE },
        { 0x0007, KEY_OK }, /* TS */
        { 0x0008, KEY_STOP },
        { 0x0009, KEY_MENU }, /* swap */
        { 0x000a, KEY_REWIND },
        { 0x001b, KEY_PAUSE },
        { 0x001f, KEY_FASTFORWARD },
        { 0x000c, KEY_RECORD },
        { 0x000d, KEY_CAMERA }, /* screenshot */
        { 0x000e, KEY_COFFEE }, /* "MTS" */
};

static struct rc_map_table rc_map_tvwalkertwin_table[] = {
        { 0x0001, KEY_ZOOM }, /* Full Screen */
        { 0x0002, KEY_CAMERA }, /* snapshot */
        { 0x0003, KEY_MUTE },
        { 0x0004, KEY_REWIND },
        { 0x0005, KEY_PLAYPAUSE }, /* Play/Pause */
        { 0x0006, KEY_FASTFORWARD },
        { 0x0007, KEY_RECORD },
        { 0x0008, KEY_STOP },
        { 0x0009, KEY_TIME }, /* Timeshift */
        { 0x000c, KEY_COFFEE }, /* Recall */
        { 0x000e, KEY_CHANNELUP },
        { 0x0012, KEY_POWER },
        { 0x0015, KEY_MENU }, /* source */
        { 0x0018, KEY_CYCLEWINDOWS }, /* TWIN PIP */
        { 0x001a, KEY_CHANNELDOWN },
        { 0x001b, KEY_VOLUMEDOWN },
        { 0x001e, KEY_VOLUMEUP },
};

static struct rc_map_table rc_map_pinnacle310e_table[] = {
        { 0x16, KEY_POWER },
        { 0x17, KEY_FAVORITES },
        { 0x0f, KEY_TEXT },
        { 0x48, KEY_PROGRAM },          /* preview */
        { 0x1c, KEY_EPG },
        { 0x04, KEY_LIST },             /* record list */
        { 0x03, KEY_1 },
        { 0x01, KEY_2 },
        { 0x06, KEY_3 },
        { 0x09, KEY_4 },
        { 0x1d, KEY_5 },
        { 0x1f, KEY_6 },
        { 0x0d, KEY_7 },
        { 0x19, KEY_8 },
        { 0x1b, KEY_9 },
        { 0x15, KEY_0 },
        { 0x0c, KEY_CANCEL },
        { 0x4a, KEY_CLEAR },
        { 0x13, KEY_BACK },
        { 0x00, KEY_TAB },
        { 0x4b, KEY_UP },
        { 0x4e, KEY_LEFT },
        { 0x52, KEY_RIGHT },
        { 0x51, KEY_DOWN },
        { 0x4f, KEY_ENTER },            /* could also be KEY_OK */
        { 0x1e, KEY_VOLUMEUP },
        { 0x0a, KEY_VOLUMEDOWN },
        { 0x05, KEY_CHANNELUP },
        { 0x02, KEY_CHANNELDOWN },
        { 0x11, KEY_RECORD },
        { 0x14, KEY_PLAY },
        { 0x4c, KEY_PAUSE },
        { 0x1a, KEY_STOP },
        { 0x40, KEY_REWIND },
        { 0x12, KEY_FASTFORWARD },
        { 0x41, KEY_PREVIOUSSONG },     /* Replay */
        { 0x42, KEY_NEXTSONG },         /* Skip */
        { 0x54, KEY_CAMERA },           /* Capture */
/*      { 0x50, KEY_SAP },      */              /* Sap */
        { 0x47, KEY_CYCLEWINDOWS },     /* Pip */
        { 0x4d, KEY_SCREEN },           /* FullScreen */
        { 0x08, KEY_SUBTITLE },
        { 0x0e, KEY_MUTE },
/*      { 0x49, KEY_LR },       */              /* L/R */
        { 0x07, KEY_SLEEP },            /* Hibernate */
        { 0x08, KEY_VIDEO },            /* A/V */
        { 0x0e, KEY_MENU },             /* Recall */
        { 0x45, KEY_ZOOMIN },
        { 0x46, KEY_ZOOMOUT },
        { 0x18, KEY_RED },              /* Red */
        { 0x53, KEY_GREEN },            /* Green */
        { 0x5e, KEY_YELLOW },           /* Yellow */
        { 0x5f, KEY_BLUE },             /* Blue */
};

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties megasky_properties;
static struct dvb_usb_device_properties digivox_mini_ii_properties;
static struct dvb_usb_device_properties tvwalkertwin_properties;
static struct dvb_usb_device_properties dposh_properties;
static struct dvb_usb_device_properties pinnacle_pctv310e_properties;
static struct dvb_usb_device_properties vp7049_properties;

static int m920x_probe(struct usb_interface *intf,
                       const struct usb_device_id *id)
{
        struct dvb_usb_device *d = NULL;
        int ret;
        struct m920x_inits *rc_init_seq = NULL;
        int bInterfaceNumber = intf->cur_altsetting->desc.bInterfaceNumber;

        deb("Probing for m920x device at interface %d\n", bInterfaceNumber);

        if (bInterfaceNumber == 0) {
                /* Single-tuner device, or first interface on
                 * multi-tuner device
                 */

                ret = dvb_usb_device_init(intf, &megasky_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        rc_init_seq = megasky_rc_init;
                        goto found;
                }

                ret = dvb_usb_device_init(intf, &digivox_mini_ii_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        /* No remote control, so no rc_init_seq */
                        goto found;
                }

                /* This configures both tuners on the TV Walker Twin */
                ret = dvb_usb_device_init(intf, &tvwalkertwin_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        rc_init_seq = tvwalkertwin_rc_init;
                        goto found;
                }

                ret = dvb_usb_device_init(intf, &dposh_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        /* Remote controller not supported yet. */
                        goto found;
                }

                ret = dvb_usb_device_init(intf, &pinnacle_pctv310e_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        rc_init_seq = pinnacle310e_init;
                        goto found;
                }

                ret = dvb_usb_device_init(intf, &vp7049_properties,
                                          THIS_MODULE, &d, adapter_nr);
                if (ret == 0) {
                        rc_init_seq = vp7049_rc_init;
                        goto found;
                }

                return ret;
        } else {
                /* Another interface on a multi-tuner device */

                /* The LifeView TV Walker Twin gets here, but struct
                 * tvwalkertwin_properties already configured both
                 * tuners, so there is nothing for us to do here
                 */
        }

 found:
        if ((ret = m920x_init_ep(intf)) < 0)
                return ret;

        if (d && (ret = m920x_init(d, rc_init_seq)) != 0)
                return ret;

        return ret;
}

enum {
        MSI_MEGASKY580,
        ANUBIS_MSI_DIGI_VOX_MINI_II,
        ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD,
        ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM,
        DPOSH_M9206_COLD,
        DPOSH_M9206_WARM,
        VISIONPLUS_PINNACLE_PCTV310E,
        AZUREWAVE_TWINHAN_VP7049,
};

static const struct usb_device_id m920x_table[] = {
        DVB_USB_DEV(MSI, MSI_MEGASKY580),
        DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_MSI_DIGI_VOX_MINI_II),
        DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD),
        DVB_USB_DEV(ANUBIS_ELECTRONIC, ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM),
        DVB_USB_DEV(DPOSH, DPOSH_M9206_COLD),
        DVB_USB_DEV(DPOSH, DPOSH_M9206_WARM),
        DVB_USB_DEV(VISIONPLUS, VISIONPLUS_PINNACLE_PCTV310E),
        DVB_USB_DEV(AZUREWAVE, AZUREWAVE_TWINHAN_VP7049),
        { }
};

MODULE_DEVICE_TABLE (usb, m920x_table);

static struct dvb_usb_device_properties megasky_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .firmware = "dvb-usb-megasky-02.fw",
        .download_firmware = m920x_firmware_download,

        .rc.legacy = {
                .rc_interval      = 100,
                .rc_map_table     = rc_map_megasky_table,
                .rc_map_size      = ARRAY_SIZE(rc_map_megasky_table),
                .rc_query         = m920x_rc_query,
        },

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_mt352_frontend_attach,
                .tuner_attach     = m920x_qt1010_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x81,
                        .u = {
                                .bulk = {
                                        .buffersize = 512,
                                }
                        }
                },
                }},
        }},
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                {   "MSI Mega Sky 580 DVB-T USB2.0",
                        { &m920x_table[MSI_MEGASKY580], NULL },
                        { NULL },
                }
        }
};

static struct dvb_usb_device_properties digivox_mini_ii_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .firmware = "dvb-usb-digivox-02.fw",
        .download_firmware = m920x_firmware_download,

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_tda10046_08_frontend_attach,
                .tuner_attach     = m920x_tda8275_60_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x81,
                        .u = {
                                .bulk = {
                                        .buffersize = 0x4000,
                                }
                        }
                },
                }},
        }},
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                {   "MSI DIGI VOX mini II DVB-T USB2.0",
                        { &m920x_table[ANUBIS_MSI_DIGI_VOX_MINI_II], NULL },
                        { NULL },
                },
        }
};

/* LifeView TV Walker Twin support by Nick Andrew <nick@nick-andrew.net>
 *
 * LifeView TV Walker Twin has 1 x M9206, 2 x TDA10046, 2 x TDA8275A
 * TDA10046 #0 is located at i2c address 0x08
 * TDA10046 #1 is located at i2c address 0x0b
 * TDA8275A #0 is located at i2c address 0x60
 * TDA8275A #1 is located at i2c address 0x61
 */
static struct dvb_usb_device_properties tvwalkertwin_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .firmware = "dvb-usb-tvwalkert.fw",
        .download_firmware = m920x_firmware_download,

        .rc.legacy = {
                .rc_interval      = 100,
                .rc_map_table     = rc_map_tvwalkertwin_table,
                .rc_map_size      = ARRAY_SIZE(rc_map_tvwalkertwin_table),
                .rc_query         = m920x_rc_query,
        },

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 2,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_tda10046_08_frontend_attach,
                .tuner_attach     = m920x_tda8275_60_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x81,
                        .u = {
                                 .bulk = {
                                         .buffersize = 512,
                                 }
                        }
                }},
                }},{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_tda10046_0b_frontend_attach,
                .tuner_attach     = m920x_tda8275_61_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x82,
                        .u = {
                                 .bulk = {
                                         .buffersize = 512,
                                 }
                        }
                }},
                },
        }},
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                {   .name = "LifeView TV Walker Twin DVB-T USB2.0",
                    .cold_ids = { &m920x_table[ANUBIS_LIFEVIEW_TV_WALKER_TWIN_COLD], NULL },
                    .warm_ids = { &m920x_table[ANUBIS_LIFEVIEW_TV_WALKER_TWIN_WARM], NULL },
                },
        }
};

static struct dvb_usb_device_properties dposh_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .firmware = "dvb-usb-dposh-01.fw",
        .download_firmware = m920x_firmware_download,

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{
                /* Hardware pid filters don't work with this device/firmware */

                .frontend_attach  = m920x_mt352_frontend_attach,
                .tuner_attach     = m920x_qt1010_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x81,
                        .u = {
                                 .bulk = {
                                         .buffersize = 512,
                                 }
                        }
                },
                }},
        }},
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                 {   .name = "Dposh DVB-T USB2.0",
                     .cold_ids = { &m920x_table[DPOSH_M9206_COLD], NULL },
                     .warm_ids = { &m920x_table[DPOSH_M9206_WARM], NULL },
                 },
         }
};

static struct dvb_usb_device_properties pinnacle_pctv310e_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .download_firmware = NULL,

        .rc.legacy = {
                .rc_interval      = 100,
                .rc_map_table     = rc_map_pinnacle310e_table,
                .rc_map_size      = ARRAY_SIZE(rc_map_pinnacle310e_table),
                .rc_query         = m920x_rc_query,
        },

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_mt352_frontend_attach,
                .tuner_attach     = m920x_fmd1216me_tuner_attach,

                .stream = {
                        .type = USB_ISOC,
                        .count = 5,
                        .endpoint = 0x84,
                        .u = {
                                .isoc = {
                                        .framesperurb = 128,
                                        .framesize = 564,
                                        .interval = 1,
                                }
                        }
                },
                }},
        } },
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                {   "Pinnacle PCTV 310e",
                        { &m920x_table[VISIONPLUS_PINNACLE_PCTV310E], NULL },
                        { NULL },
                }
        }
};

static struct dvb_usb_device_properties vp7049_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER,

        .usb_ctrl = DEVICE_SPECIFIC,
        .firmware = "dvb-usb-vp7049-0.95.fw",
        .download_firmware = m920x_firmware_download,

        .rc.core = {
                .rc_interval    = 150,
                .rc_codes       = RC_MAP_TWINHAN_VP1027_DVBS,
                .rc_query       = m920x_rc_core_query,
                .allowed_protos = RC_PROTO_BIT_UNKNOWN,
        },

        .size_of_priv     = sizeof(struct m920x_state),

        .identify_state   = m920x_identify_state,
        .num_adapters = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{

                .caps = DVB_USB_ADAP_HAS_PID_FILTER |
                        DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,

                .pid_filter_count = 8,
                .pid_filter       = m920x_pid_filter,
                .pid_filter_ctrl  = m920x_pid_filter_ctrl,

                .frontend_attach  = m920x_mt352_frontend_attach_vp7049,
                .tuner_attach     = m920x_mt2060_tuner_attach,

                .stream = {
                        .type = USB_BULK,
                        .count = 8,
                        .endpoint = 0x81,
                        .u = {
                                 .bulk = {
                                         .buffersize = 512,
                                 }
                        }
                },
                } },
        } },
        .i2c_algo         = &m920x_i2c_algo,

        .num_device_descs = 1,
        .devices = {
                {   "DTV-DVB UDTT7049",
                        { &m920x_table[AZUREWAVE_TWINHAN_VP7049], NULL },
                        { NULL },
                }
         }
};

static struct usb_driver m920x_driver = {
        .name           = "dvb_usb_m920x",
        .probe          = m920x_probe,
        .disconnect     = dvb_usb_device_exit,
        .id_table       = m920x_table,
};

module_usb_driver(m920x_driver);

MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
MODULE_DESCRIPTION("DVB Driver for ULI M920x");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");