// SPDX-License-Identifier: GPL-2.0-only
/* Common methods for dibusb-based-receivers.
 *
 * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
 *
 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
 */

#include "dibusb.h"

MODULE_DESCRIPTION("Common methods for DIB3000MC");
MODULE_LICENSE("GPL");

/* 3000MC/P stuff */
// Config Adjacent channels  Perf -cal22
static struct dibx000_agc_config dib3000p_mt2060_agc_config = {
        .band_caps = BAND_VHF | BAND_UHF,
        .setup     = (1 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (0 << 2) | (2 << 0),

        .agc1_max = 48497,
        .agc1_min = 23593,
        .agc2_max = 46531,
        .agc2_min = 24904,

        .agc1_pt1 = 0x65,
        .agc1_pt2 = 0x69,

        .agc1_slope1 = 0x51,
        .agc1_slope2 = 0x27,

        .agc2_pt1 = 0,
        .agc2_pt2 = 0x33,

        .agc2_slope1 = 0x35,
        .agc2_slope2 = 0x37,
};

static struct dib3000mc_config stk3000p_dib3000p_config = {
        &dib3000p_mt2060_agc_config,

        .max_time     = 0x196,
        .ln_adc_level = 0x1cc7,

        .output_mpeg2_in_188_bytes = 1,

        .agc_command1 = 1,
        .agc_command2 = 1,
};

static struct dibx000_agc_config dib3000p_panasonic_agc_config = {
        .band_caps = BAND_VHF | BAND_UHF,
        .setup     = (1 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (0 << 2) | (2 << 0),

        .agc1_max = 56361,
        .agc1_min = 22282,
        .agc2_max = 47841,
        .agc2_min = 36045,

        .agc1_pt1 = 0x3b,
        .agc1_pt2 = 0x6b,

        .agc1_slope1 = 0x55,
        .agc1_slope2 = 0x1d,

        .agc2_pt1 = 0,
        .agc2_pt2 = 0x0a,

        .agc2_slope1 = 0x95,
        .agc2_slope2 = 0x1e,
};

static struct dib3000mc_config mod3000p_dib3000p_config = {
        &dib3000p_panasonic_agc_config,

        .max_time     = 0x51,
        .ln_adc_level = 0x1cc7,

        .output_mpeg2_in_188_bytes = 1,

        .agc_command1 = 1,
        .agc_command2 = 1,
};

int dibusb_dib3000mc_frontend_attach(struct dvb_usb_adapter *adap)
{
        if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_LITEON &&
            le16_to_cpu(adap->dev->udev->descriptor.idProduct) ==
                        USB_PID_LITEON_DVB_T_WARM) {
                msleep(1000);
        }

        adap->fe_adap[0].fe = dvb_attach(dib3000mc_attach,
                                         &adap->dev->i2c_adap,
                                         DEFAULT_DIB3000P_I2C_ADDRESS,
                                         &mod3000p_dib3000p_config);
        if ((adap->fe_adap[0].fe) == NULL)
                adap->fe_adap[0].fe = dvb_attach(dib3000mc_attach,
                                                 &adap->dev->i2c_adap,
                                                 DEFAULT_DIB3000MC_I2C_ADDRESS,
                                                 &mod3000p_dib3000p_config);
        if ((adap->fe_adap[0].fe) != NULL) {
                if (adap->priv != NULL) {
                        struct dibusb_state *st = adap->priv;
                        st->ops.pid_parse = dib3000mc_pid_parse;
                        st->ops.pid_ctrl  = dib3000mc_pid_control;
                }
                return 0;
        }
        return -ENODEV;
}
EXPORT_SYMBOL(dibusb_dib3000mc_frontend_attach);

static struct mt2060_config stk3000p_mt2060_config = {
        0x60
};

int dibusb_dib3000mc_tuner_attach(struct dvb_usb_adapter *adap)
{
        struct dibusb_state *st = adap->priv;
        u8 a,b;
        u16 if1 = 1220;
        struct i2c_adapter *tun_i2c;

        // First IF calibration for Liteon Sticks
        if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_LITEON &&
            le16_to_cpu(adap->dev->udev->descriptor.idProduct) == USB_PID_LITEON_DVB_T_WARM) {

                dibusb_read_eeprom_byte(adap->dev,0x7E,&a);
                dibusb_read_eeprom_byte(adap->dev,0x7F,&b);

                if (a == 0x00)
                        if1 += b;
                else if (a == 0x80)
                        if1 -= b;
                else
                        warn("LITE-ON DVB-T: Strange IF1 calibration :%2X %2X\n", a, b);

        } else if (le16_to_cpu(adap->dev->udev->descriptor.idVendor) == USB_VID_DIBCOM &&
                   le16_to_cpu(adap->dev->udev->descriptor.idProduct) == USB_PID_DIBCOM_MOD3001_WARM) {
                u8 desc;
                dibusb_read_eeprom_byte(adap->dev, 7, &desc);
                if (desc == 2) {
                        a = 127;
                        do {
                                dibusb_read_eeprom_byte(adap->dev, a, &desc);
                                a--;
                        } while (a > 7 && (desc == 0xff || desc == 0x00));
                        if (desc & 0x80)
                                if1 -= (0xff - desc);
                        else
                                if1 += desc;
                }
        }

        tun_i2c = dib3000mc_get_tuner_i2c_master(adap->fe_adap[0].fe, 1);
        if (dvb_attach(mt2060_attach, adap->fe_adap[0].fe, tun_i2c, &stk3000p_mt2060_config, if1) == NULL) {
                /* not found - use panasonic pll parameters */
                if (dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, tun_i2c, DVB_PLL_ENV57H1XD5) == NULL)
                        return -ENOMEM;
        } else {
                st->mt2060_present = 1;
                /* set the correct parameters for the dib3000p */
                dib3000mc_set_config(adap->fe_adap[0].fe, &stk3000p_dib3000p_config);
        }
        return 0;
}
EXPORT_SYMBOL(dibusb_dib3000mc_tuner_attach);