root/drivers/media/usb/dvb-usb/pctv452e.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * PCTV 452e DVB driver
 *
 * Copyright (c) 2006-2008 Dominik Kuhlen <dkuhlen@gmx.net>
 *
 * TT connect S2-3650-CI Common Interface support, MAC readout
 * Copyright (C) 2008 Michael H. Schimek <mschimek@gmx.at>
 */

/* dvb usb framework */
#define DVB_USB_LOG_PREFIX "pctv452e"
#include "dvb-usb.h"

/* Demodulator */
#include "stb0899_drv.h"
#include "stb0899_reg.h"
#include "stb0899_cfg.h"
/* Tuner */
#include "stb6100.h"
#include "stb6100_cfg.h"
/* FE Power */
#include "isl6423.h"
#include "lnbp22.h"

#include <media/dvb_ca_en50221.h>
#include "ttpci-eeprom.h"

#include <linux/etherdevice.h>

static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define ISOC_INTERFACE_ALTERNATIVE 3

#define SYNC_BYTE_OUT 0xaa
#define SYNC_BYTE_IN  0x55

/* guessed: (copied from ttusb-budget) */
#define PCTV_CMD_RESET 0x15
/* command to poll IR receiver */
#define PCTV_CMD_IR    0x1b
/* command to send I2C  */
#define PCTV_CMD_I2C   0x31

#define I2C_ADDR_STB0899 (0xd0 >> 1)
#define I2C_ADDR_STB6100 (0xc0 >> 1)
#define I2C_ADDR_LNBP22  (0x10 >> 1)
#define I2C_ADDR_24C16   (0xa0 >> 1)
#define I2C_ADDR_24C64   (0xa2 >> 1)


/* pctv452e sends us this amount of data for each issued usb-command */
#define PCTV_ANSWER_LEN 64
/* Wait up to 1000ms for device  */
#define PCTV_TIMEOUT 1000


#define PCTV_LED_GPIO   STB0899_GPIO01
#define PCTV_LED_GREEN  0x82
#define PCTV_LED_ORANGE 0x02

#define ci_dbg(format, arg...)                          \
do {                                                    \
        if (0)                                          \
                printk(KERN_DEBUG DVB_USB_LOG_PREFIX    \
                        ": " format "\n" , ## arg);     \
} while (0)

enum {
        TT3650_CMD_CI_TEST = 0x40,
        TT3650_CMD_CI_RD_CTRL,
        TT3650_CMD_CI_WR_CTRL,
        TT3650_CMD_CI_RD_ATTR,
        TT3650_CMD_CI_WR_ATTR,
        TT3650_CMD_CI_RESET,
        TT3650_CMD_CI_SET_VIDEO_PORT
};


static struct stb0899_postproc pctv45e_postproc[] = {
        { PCTV_LED_GPIO, STB0899_GPIOPULLUP },
        { 0, 0 }
};

static struct isl6423_config pctv452e_isl6423_config = {
        .current_max            = SEC_CURRENT_515m,
        .curlim                 = SEC_CURRENT_LIM_ON,
        .mod_extern             = 1,
        .addr                   = 0x08,
};

/*
 * stores all private variables for communication with the PCTV452e DVB-S2
 */
struct pctv452e_state {
        struct dvb_ca_en50221 ca;
        struct mutex ca_mutex;

        u8 c;      /* transaction counter, wraps around...  */
        u8 initialized; /* set to 1 if 0x15 has been sent */
        u16 last_rc_key;
};

static int tt3650_ci_msg(struct dvb_usb_device *d, u8 cmd, u8 *data,
                         unsigned int write_len, unsigned int read_len)
{
        struct pctv452e_state *state = d->priv;
        u8 *buf;
        u8 id;
        unsigned int rlen;
        int ret;

        if (!data || (write_len > 64 - 4) || (read_len > 64 - 4)) {
                err("%s: transfer data invalid", __func__);
                return -EIO;
        }

        buf = kmalloc(64, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        id = state->c++;

        buf[0] = SYNC_BYTE_OUT;
        buf[1] = id;
        buf[2] = cmd;
        buf[3] = write_len;

        memcpy(buf + 4, data, write_len);

        rlen = (read_len > 0) ? 64 : 0;
        ret = dvb_usb_generic_rw(d, buf, 4 + write_len,
                                  buf, rlen, /* delay_ms */ 0);
        if (0 != ret)
                goto failed;

        ret = -EIO;
        if (SYNC_BYTE_IN != buf[0] || id != buf[1])
                goto failed;

        memcpy(data, buf + 4, read_len);

        kfree(buf);
        return 0;

failed:
        err("CI error %d; %02X %02X %02X -> %*ph.",
             ret, SYNC_BYTE_OUT, id, cmd, 3, buf);

        kfree(buf);
        return ret;
}

static int tt3650_ci_msg_locked(struct dvb_ca_en50221 *ca,
                                u8 cmd, u8 *data, unsigned int write_len,
                                unsigned int read_len)
{
        struct dvb_usb_device *d = ca->data;
        struct pctv452e_state *state = d->priv;
        int ret;

        mutex_lock(&state->ca_mutex);
        ret = tt3650_ci_msg(d, cmd, data, write_len, read_len);
        mutex_unlock(&state->ca_mutex);

        return ret;
}

static int tt3650_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
                                 int slot, int address)
{
        u8 buf[3];
        int ret;

        if (0 != slot)
                return -EINVAL;

        buf[0] = (address >> 8) & 0x0F;
        buf[1] = address;

        ret = tt3650_ci_msg_locked(ca, TT3650_CMD_CI_RD_ATTR, buf, 2, 3);

        ci_dbg("%s %04x -> %d 0x%02x",
                __func__, address, ret, buf[2]);

        if (ret < 0)
                return ret;

        return buf[2];
}

static int tt3650_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
                                 int slot, int address, u8 value)
{
        u8 buf[3];

        ci_dbg("%s %d 0x%04x 0x%02x",
                __func__, slot, address, value);

        if (0 != slot)
                return -EINVAL;

        buf[0] = (address >> 8) & 0x0F;
        buf[1] = address;
        buf[2] = value;

        return tt3650_ci_msg_locked(ca, TT3650_CMD_CI_WR_ATTR, buf, 3, 3);
}

static int tt3650_ci_read_cam_control(struct dvb_ca_en50221 *ca,
                                 int                    slot,
                                 u8                     address)
{
        u8 buf[2];
        int ret;

        if (0 != slot)
                return -EINVAL;

        buf[0] = address & 3;

        ret = tt3650_ci_msg_locked(ca, TT3650_CMD_CI_RD_CTRL, buf, 1, 2);

        ci_dbg("%s 0x%02x -> %d 0x%02x",
                __func__, address, ret, buf[1]);

        if (ret < 0)
                return ret;

        return buf[1];
}

static int tt3650_ci_write_cam_control(struct dvb_ca_en50221 *ca,
                                 int                    slot,
                                 u8                     address,
                                 u8                     value)
{
        u8 buf[2];

        ci_dbg("%s %d 0x%02x 0x%02x",
                __func__, slot, address, value);

        if (0 != slot)
                return -EINVAL;

        buf[0] = address;
        buf[1] = value;

        return tt3650_ci_msg_locked(ca, TT3650_CMD_CI_WR_CTRL, buf, 2, 2);
}

static int tt3650_ci_set_video_port(struct dvb_ca_en50221 *ca,
                                 int                    slot,
                                 int                    enable)
{
        u8 buf[1];
        int ret;

        ci_dbg("%s %d %d", __func__, slot, enable);

        if (0 != slot)
                return -EINVAL;

        enable = !!enable;
        buf[0] = enable;

        ret = tt3650_ci_msg_locked(ca, TT3650_CMD_CI_SET_VIDEO_PORT, buf, 1, 1);
        if (ret < 0)
                return ret;

        if (enable != buf[0]) {
                err("CI not %sabled.", enable ? "en" : "dis");
                return -EIO;
        }

        return 0;
}

static int tt3650_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
{
        return tt3650_ci_set_video_port(ca, slot, /* enable */ 0);
}

static int tt3650_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
{
        return tt3650_ci_set_video_port(ca, slot, /* enable */ 1);
}

static int tt3650_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
{
        struct dvb_usb_device *d = ca->data;
        struct pctv452e_state *state = d->priv;
        u8 buf[1];
        int ret;

        ci_dbg("%s %d", __func__, slot);

        if (0 != slot)
                return -EINVAL;

        buf[0] = 0;

        mutex_lock(&state->ca_mutex);

        ret = tt3650_ci_msg(d, TT3650_CMD_CI_RESET, buf, 1, 1);
        if (0 != ret)
                goto failed;

        msleep(500);

        buf[0] = 1;

        ret = tt3650_ci_msg(d, TT3650_CMD_CI_RESET, buf, 1, 1);
        if (0 != ret)
                goto failed;

        msleep(500);

        buf[0] = 0; /* FTA */

        ret = tt3650_ci_msg(d, TT3650_CMD_CI_SET_VIDEO_PORT, buf, 1, 1);

 failed:
        mutex_unlock(&state->ca_mutex);

        return ret;
}

static int tt3650_ci_poll_slot_status(struct dvb_ca_en50221 *ca,
                                 int                    slot,
                                 int                    open)
{
        u8 buf[1];
        int ret;

        if (0 != slot)
                return -EINVAL;

        ret = tt3650_ci_msg_locked(ca, TT3650_CMD_CI_TEST, buf, 0, 1);
        if (0 != ret)
                return ret;

        if (1 == buf[0])
                return DVB_CA_EN50221_POLL_CAM_PRESENT |
                        DVB_CA_EN50221_POLL_CAM_READY;

        return 0;

}

static void tt3650_ci_uninit(struct dvb_usb_device *d)
{
        struct pctv452e_state *state;

        ci_dbg("%s", __func__);

        if (NULL == d)
                return;

        state = d->priv;
        if (NULL == state)
                return;

        if (NULL == state->ca.data)
                return;

        /* Error ignored. */
        tt3650_ci_set_video_port(&state->ca, /* slot */ 0, /* enable */ 0);

        dvb_ca_en50221_release(&state->ca);

        memset(&state->ca, 0, sizeof(state->ca));
}

static int tt3650_ci_init(struct dvb_usb_adapter *a)
{
        struct dvb_usb_device *d = a->dev;
        struct pctv452e_state *state = d->priv;
        int ret;

        ci_dbg("%s", __func__);

        mutex_init(&state->ca_mutex);

        state->ca.owner = THIS_MODULE;
        state->ca.read_attribute_mem = tt3650_ci_read_attribute_mem;
        state->ca.write_attribute_mem = tt3650_ci_write_attribute_mem;
        state->ca.read_cam_control = tt3650_ci_read_cam_control;
        state->ca.write_cam_control = tt3650_ci_write_cam_control;
        state->ca.slot_reset = tt3650_ci_slot_reset;
        state->ca.slot_shutdown = tt3650_ci_slot_shutdown;
        state->ca.slot_ts_enable = tt3650_ci_slot_ts_enable;
        state->ca.poll_slot_status = tt3650_ci_poll_slot_status;
        state->ca.data = d;

        ret = dvb_ca_en50221_init(&a->dvb_adap,
                                   &state->ca,
                                   /* flags */ 0,
                                   /* n_slots */ 1);
        if (0 != ret) {
                err("Cannot initialize CI: Error %d.", ret);
                memset(&state->ca, 0, sizeof(state->ca));
                return ret;
        }

        info("CI initialized.");

        return 0;
}

#define CMD_BUFFER_SIZE 0x28
static int pctv452e_i2c_msg(struct dvb_usb_device *d, u8 addr,
                                const u8 *snd_buf, u8 snd_len,
                                u8 *rcv_buf, u8 rcv_len)
{
        struct pctv452e_state *state = d->priv;
        u8 *buf;
        u8 id;
        int ret;

        if (snd_len > 64 - 7 || rcv_len > 64 - 7)
                return -EINVAL;

        buf = kmalloc(64, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        id = state->c++;

        buf[0] = SYNC_BYTE_OUT;
        buf[1] = id;
        buf[2] = PCTV_CMD_I2C;
        buf[3] = snd_len + 3;
        buf[4] = addr << 1;
        buf[5] = snd_len;
        buf[6] = rcv_len;

        memcpy(buf + 7, snd_buf, snd_len);

        ret = dvb_usb_generic_rw(d, buf, 7 + snd_len,
                                  buf, /* rcv_len */ 64,
                                  /* delay_ms */ 0);
        if (ret < 0)
                goto failed;

        /* TT USB protocol error. */
        ret = -EIO;
        if (SYNC_BYTE_IN != buf[0] || id != buf[1])
                goto failed;

        /* I2C device didn't respond as expected. */
        ret = -EREMOTEIO;
        if (buf[5] < snd_len || buf[6] < rcv_len)
                goto failed;

        memcpy(rcv_buf, buf + 7, rcv_len);

        kfree(buf);
        return rcv_len;

failed:
        err("I2C error %d; %02X %02X  %02X %02X %02X -> %*ph",
             ret, SYNC_BYTE_OUT, id, addr << 1, snd_len, rcv_len,
             7, buf);

        kfree(buf);
        return ret;
}

static int pctv452e_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msg,
                                int num)
{
        struct dvb_usb_device *d = i2c_get_adapdata(adapter);
        int i;

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

        for (i = 0; i < num; i++) {
                u8 addr, snd_len, rcv_len, *snd_buf, *rcv_buf;
                int ret;

                if (msg[i].flags & I2C_M_RD) {
                        addr = msg[i].addr;
                        snd_buf = NULL;
                        snd_len = 0;
                        rcv_buf = msg[i].buf;
                        rcv_len = msg[i].len;
                } else {
                        addr = msg[i].addr;
                        snd_buf = msg[i].buf;
                        snd_len = msg[i].len;
                        rcv_buf = NULL;
                        rcv_len = 0;
                }

                ret = pctv452e_i2c_msg(d, addr, snd_buf, snd_len, rcv_buf,
                                        rcv_len);
                if (ret < rcv_len)
                        break;
        }

        mutex_unlock(&d->i2c_mutex);
        return i;
}

static u32 pctv452e_i2c_func(struct i2c_adapter *adapter)
{
        return I2C_FUNC_I2C;
}

static int pctv452e_power_ctrl(struct dvb_usb_device *d, int i)
{
        struct pctv452e_state *state = d->priv;
        u8 *b0, *rx;
        int ret;

        info("%s: %d\n", __func__, i);

        if (!i)
                return 0;

        if (state->initialized)
                return 0;

        b0 = kmalloc(5 + PCTV_ANSWER_LEN, GFP_KERNEL);
        if (!b0)
                return -ENOMEM;

        rx = b0 + 5;

        /* hmm where should this should go? */
        ret = usb_set_interface(d->udev, 0, ISOC_INTERFACE_ALTERNATIVE);
        if (ret != 0)
                info("%s: Warning set interface returned: %d\n",
                        __func__, ret);

        /* this is a one-time initialization, don't know where to put */
        b0[0] = 0xaa;
        b0[1] = state->c++;
        b0[2] = PCTV_CMD_RESET;
        b0[3] = 1;
        b0[4] = 0;
        /* reset board */
        ret = dvb_usb_generic_rw(d, b0, 5, rx, PCTV_ANSWER_LEN, 0);
        if (ret)
                goto ret;

        b0[1] = state->c++;
        b0[4] = 1;
        /* reset board (again?) */
        ret = dvb_usb_generic_rw(d, b0, 5, rx, PCTV_ANSWER_LEN, 0);
        if (ret)
                goto ret;

        state->initialized = 1;

ret:
        kfree(b0);
        return ret;
}

static int pctv452e_rc_query(struct dvb_usb_device *d)
{
        struct pctv452e_state *state = d->priv;
        u8 *b, *rx;
        int ret, i;
        u8 id;

        b = kmalloc(CMD_BUFFER_SIZE + PCTV_ANSWER_LEN, GFP_KERNEL);
        if (!b)
                return -ENOMEM;

        rx = b + CMD_BUFFER_SIZE;

        id = state->c++;

        /* prepare command header  */
        b[0] = SYNC_BYTE_OUT;
        b[1] = id;
        b[2] = PCTV_CMD_IR;
        b[3] = 0;

        /* send ir request */
        ret = dvb_usb_generic_rw(d, b, 4, rx, PCTV_ANSWER_LEN, 0);
        if (ret != 0)
                goto ret;

        if (debug > 3) {
                info("%s: read: %2d: %*ph: ", __func__, ret, 3, rx);
                for (i = 0; (i < rx[3]) && ((i+3) < PCTV_ANSWER_LEN); i++)
                        info(" %02x", rx[i+3]);

                info("\n");
        }

        if ((rx[3] == 9) &&  (rx[12] & 0x01)) {
                /* got a "press" event */
                state->last_rc_key = RC_SCANCODE_RC5(rx[7], rx[6]);
                if (debug > 2)
                        info("%s: cmd=0x%02x sys=0x%02x\n",
                                __func__, rx[6], rx[7]);

                rc_keydown(d->rc_dev, RC_PROTO_RC5, state->last_rc_key, 0);
        } else if (state->last_rc_key) {
                rc_keyup(d->rc_dev);
                state->last_rc_key = 0;
        }
ret:
        kfree(b);
        return ret;
}

static int pctv452e_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
{
        const u8 mem_addr[] = { 0x1f, 0xcc };
        u8 encoded_mac[20];
        int ret;

        ret = -EAGAIN;
        if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
                goto failed;

        ret = pctv452e_i2c_msg(d, I2C_ADDR_24C16,
                                mem_addr + 1, /* snd_len */ 1,
                                encoded_mac, /* rcv_len */ 20);
        if (-EREMOTEIO == ret)
                /* Caution! A 24C16 interprets 0xA2 0x1F 0xCC as a
                   byte write if /WC is low. */
                ret = pctv452e_i2c_msg(d, I2C_ADDR_24C64,
                                        mem_addr, 2,
                                        encoded_mac, 20);

        mutex_unlock(&d->i2c_mutex);

        if (20 != ret)
                goto failed;

        ret = ttpci_eeprom_decode_mac(mac, encoded_mac);
        if (0 != ret)
                goto failed;

        return 0;

failed:
        eth_zero_addr(mac);

        return ret;
}

static const struct stb0899_s1_reg pctv452e_init_dev[] = {
        { STB0899_DISCNTRL1,    0x26 },
        { STB0899_DISCNTRL2,    0x80 },
        { STB0899_DISRX_ST0,    0x04 },
        { STB0899_DISRX_ST1,    0x20 },
        { STB0899_DISPARITY,    0x00 },
        { STB0899_DISFIFO,      0x00 },
        { STB0899_DISF22,       0x99 },
        { STB0899_DISF22RX,     0x85 }, /* 0xa8 */
        { STB0899_ACRPRESC,     0x11 },
        { STB0899_ACRDIV1,      0x0a },
        { STB0899_ACRDIV2,      0x05 },
        { STB0899_DACR1 ,       0x00 },
        { STB0899_DACR2 ,       0x00 },
        { STB0899_OUTCFG,       0x00 },
        { STB0899_MODECFG,      0x00 }, /* Inversion */
        { STB0899_IRQMSK_3,     0xf3 },
        { STB0899_IRQMSK_2,     0xfc },
        { STB0899_IRQMSK_1,     0xff },
        { STB0899_IRQMSK_0,     0xff },
        { STB0899_I2CCFG,       0x88 },
        { STB0899_I2CRPT,       0x58 },
        { STB0899_GPIO00CFG,    0x82 },
        { STB0899_GPIO01CFG,    0x82 }, /* LED: 0x02 green, 0x82 orange */
        { STB0899_GPIO02CFG,    0x82 },
        { STB0899_GPIO03CFG,    0x82 },
        { STB0899_GPIO04CFG,    0x82 },
        { STB0899_GPIO05CFG,    0x82 },
        { STB0899_GPIO06CFG,    0x82 },
        { STB0899_GPIO07CFG,    0x82 },
        { STB0899_GPIO08CFG,    0x82 },
        { STB0899_GPIO09CFG,    0x82 },
        { STB0899_GPIO10CFG,    0x82 },
        { STB0899_GPIO11CFG,    0x82 },
        { STB0899_GPIO12CFG,    0x82 },
        { STB0899_GPIO13CFG,    0x82 },
        { STB0899_GPIO14CFG,    0x82 },
        { STB0899_GPIO15CFG,    0x82 },
        { STB0899_GPIO16CFG,    0x82 },
        { STB0899_GPIO17CFG,    0x82 },
        { STB0899_GPIO18CFG,    0x82 },
        { STB0899_GPIO19CFG,    0x82 },
        { STB0899_GPIO20CFG,    0x82 },
        { STB0899_SDATCFG,      0xb8 },
        { STB0899_SCLTCFG,      0xba },
        { STB0899_AGCRFCFG,     0x1c }, /* 0x11 DVB-S; 0x1c DVB-S2 (1c, rjkm) */
        { STB0899_GPIO22,       0x82 },
        { STB0899_GPIO21,       0x91 },
        { STB0899_DIRCLKCFG,    0x82 },
        { STB0899_CLKOUT27CFG,  0x7e },
        { STB0899_STDBYCFG,     0x82 },
        { STB0899_CS0CFG,       0x82 },
        { STB0899_CS1CFG,       0x82 },
        { STB0899_DISEQCOCFG,   0x20 },
        { STB0899_NCOARSE,      0x15 }, /* 0x15 27Mhz, F/3 198MHz, F/6 108MHz */
        { STB0899_SYNTCTRL,     0x00 }, /* 0x00 CLKI, 0x02 XTALI */
        { STB0899_FILTCTRL,     0x00 },
        { STB0899_SYSCTRL,      0x00 },
        { STB0899_STOPCLK1,     0x20 }, /* orig: 0x00 budget-ci: 0x20 */
        { STB0899_STOPCLK2,     0x00 },
        { STB0899_INTBUFCTRL,   0x0a },
        { STB0899_AGC2I1,       0x00 },
        { STB0899_AGC2I2,       0x00 },
        { STB0899_AGCIQIN,      0x00 },
        { STB0899_TSTRES,       0x40 }, /* rjkm */
        { 0xffff,               0xff },
};

static const struct stb0899_s1_reg pctv452e_init_s1_demod[] = {
        { STB0899_DEMOD,        0x00 },
        { STB0899_RCOMPC,       0xc9 },
        { STB0899_AGC1CN,       0x01 },
        { STB0899_AGC1REF,      0x10 },
        { STB0899_RTC,          0x23 },
        { STB0899_TMGCFG,       0x4e },
        { STB0899_AGC2REF,      0x34 },
        { STB0899_TLSR,         0x84 },
        { STB0899_CFD,          0xf7 },
        { STB0899_ACLC,         0x87 },
        { STB0899_BCLC,         0x94 },
        { STB0899_EQON,         0x41 },
        { STB0899_LDT,          0xf1 },
        { STB0899_LDT2,         0xe3 },
        { STB0899_EQUALREF,     0xb4 },
        { STB0899_TMGRAMP,      0x10 },
        { STB0899_TMGTHD,       0x30 },
        { STB0899_IDCCOMP,      0xfd },
        { STB0899_QDCCOMP,      0xff },
        { STB0899_POWERI,       0x0c },
        { STB0899_POWERQ,       0x0f },
        { STB0899_RCOMP,        0x6c },
        { STB0899_AGCIQIN,      0x80 },
        { STB0899_AGC2I1,       0x06 },
        { STB0899_AGC2I2,       0x00 },
        { STB0899_TLIR,         0x30 },
        { STB0899_RTF,          0x7f },
        { STB0899_DSTATUS,      0x00 },
        { STB0899_LDI,          0xbc },
        { STB0899_CFRM,         0xea },
        { STB0899_CFRL,         0x31 },
        { STB0899_NIRM,         0x2b },
        { STB0899_NIRL,         0x80 },
        { STB0899_ISYMB,        0x1d },
        { STB0899_QSYMB,        0xa6 },
        { STB0899_SFRH,         0x2f },
        { STB0899_SFRM,         0x68 },
        { STB0899_SFRL,         0x40 },
        { STB0899_SFRUPH,       0x2f },
        { STB0899_SFRUPM,       0x68 },
        { STB0899_SFRUPL,       0x40 },
        { STB0899_EQUAI1,       0x02 },
        { STB0899_EQUAQ1,       0xff },
        { STB0899_EQUAI2,       0x04 },
        { STB0899_EQUAQ2,       0x05 },
        { STB0899_EQUAI3,       0x02 },
        { STB0899_EQUAQ3,       0xfd },
        { STB0899_EQUAI4,       0x03 },
        { STB0899_EQUAQ4,       0x07 },
        { STB0899_EQUAI5,       0x08 },
        { STB0899_EQUAQ5,       0xf5 },
        { STB0899_DSTATUS2,     0x00 },
        { STB0899_VSTATUS,      0x00 },
        { STB0899_VERROR,       0x86 },
        { STB0899_IQSWAP,       0x2a },
        { STB0899_ECNT1M,       0x00 },
        { STB0899_ECNT1L,       0x00 },
        { STB0899_ECNT2M,       0x00 },
        { STB0899_ECNT2L,       0x00 },
        { STB0899_ECNT3M,       0x0a },
        { STB0899_ECNT3L,       0xad },
        { STB0899_FECAUTO1,     0x06 },
        { STB0899_FECM,         0x01 },
        { STB0899_VTH12,        0xb0 },
        { STB0899_VTH23,        0x7a },
        { STB0899_VTH34,        0x58 },
        { STB0899_VTH56,        0x38 },
        { STB0899_VTH67,        0x34 },
        { STB0899_VTH78,        0x24 },
        { STB0899_PRVIT,        0xff },
        { STB0899_VITSYNC,      0x19 },
        { STB0899_RSULC,        0xb1 }, /* DVB = 0xb1, DSS = 0xa1 */
        { STB0899_TSULC,        0x42 },
        { STB0899_RSLLC,        0x41 },
        { STB0899_TSLPL,        0x12 },
        { STB0899_TSCFGH,       0x0c },
        { STB0899_TSCFGM,       0x00 },
        { STB0899_TSCFGL,       0x00 },
        { STB0899_TSOUT,        0x69 }, /* 0x0d for CAM */
        { STB0899_RSSYNCDEL,    0x00 },
        { STB0899_TSINHDELH,    0x02 },
        { STB0899_TSINHDELM,    0x00 },
        { STB0899_TSINHDELL,    0x00 },
        { STB0899_TSLLSTKM,     0x1b },
        { STB0899_TSLLSTKL,     0xb3 },
        { STB0899_TSULSTKM,     0x00 },
        { STB0899_TSULSTKL,     0x00 },
        { STB0899_PCKLENUL,     0xbc },
        { STB0899_PCKLENLL,     0xcc },
        { STB0899_RSPCKLEN,     0xbd },
        { STB0899_TSSTATUS,     0x90 },
        { STB0899_ERRCTRL1,     0xb6 },
        { STB0899_ERRCTRL2,     0x95 },
        { STB0899_ERRCTRL3,     0x8d },
        { STB0899_DMONMSK1,     0x27 },
        { STB0899_DMONMSK0,     0x03 },
        { STB0899_DEMAPVIT,     0x5c },
        { STB0899_PLPARM,       0x19 },
        { STB0899_PDELCTRL,     0x48 },
        { STB0899_PDELCTRL2,    0x00 },
        { STB0899_BBHCTRL1,     0x00 },
        { STB0899_BBHCTRL2,     0x00 },
        { STB0899_HYSTTHRESH,   0x77 },
        { STB0899_MATCSTM,      0x00 },
        { STB0899_MATCSTL,      0x00 },
        { STB0899_UPLCSTM,      0x00 },
        { STB0899_UPLCSTL,      0x00 },
        { STB0899_DFLCSTM,      0x00 },
        { STB0899_DFLCSTL,      0x00 },
        { STB0899_SYNCCST,      0x00 },
        { STB0899_SYNCDCSTM,    0x00 },
        { STB0899_SYNCDCSTL,    0x00 },
        { STB0899_ISI_ENTRY,    0x00 },
        { STB0899_ISI_BIT_EN,   0x00 },
        { STB0899_MATSTRM,      0xf0 },
        { STB0899_MATSTRL,      0x02 },
        { STB0899_UPLSTRM,      0x45 },
        { STB0899_UPLSTRL,      0x60 },
        { STB0899_DFLSTRM,      0xe3 },
        { STB0899_DFLSTRL,      0x00 },
        { STB0899_SYNCSTR,      0x47 },
        { STB0899_SYNCDSTRM,    0x05 },
        { STB0899_SYNCDSTRL,    0x18 },
        { STB0899_CFGPDELSTATUS1, 0x19 },
        { STB0899_CFGPDELSTATUS2, 0x2b },
        { STB0899_BBFERRORM,    0x00 },
        { STB0899_BBFERRORL,    0x01 },
        { STB0899_UPKTERRORM,   0x00 },
        { STB0899_UPKTERRORL,   0x00 },
        { 0xffff,               0xff },
};

static struct stb0899_config stb0899_config = {
        .init_dev       = pctv452e_init_dev,
        .init_s2_demod  = stb0899_s2_init_2,
        .init_s1_demod  = pctv452e_init_s1_demod,
        .init_s2_fec    = stb0899_s2_init_4,
        .init_tst       = stb0899_s1_init_5,

        .demod_address   = I2C_ADDR_STB0899, /* I2C Address */
        .block_sync_mode = STB0899_SYNC_FORCED, /* ? */

        .xtal_freq       = 27000000,     /* Assume Hz ? */
        .inversion       = IQ_SWAP_ON,

        .lo_clk   = 76500000,
        .hi_clk   = 99000000,

        .ts_output_mode  = 0,   /* Use parallel mode */
        .clock_polarity  = 0,
        .data_clk_parity = 0,
        .fec_mode       = 0,

        .esno_ave           = STB0899_DVBS2_ESNO_AVE,
        .esno_quant       = STB0899_DVBS2_ESNO_QUANT,
        .avframes_coarse     = STB0899_DVBS2_AVFRAMES_COARSE,
        .avframes_fine       = STB0899_DVBS2_AVFRAMES_FINE,
        .miss_threshold      = STB0899_DVBS2_MISS_THRESHOLD,
        .uwp_threshold_acq   = STB0899_DVBS2_UWP_THRESHOLD_ACQ,
        .uwp_threshold_track = STB0899_DVBS2_UWP_THRESHOLD_TRACK,
        .uwp_threshold_sof   = STB0899_DVBS2_UWP_THRESHOLD_SOF,
        .sof_search_timeout  = STB0899_DVBS2_SOF_SEARCH_TIMEOUT,

        .btr_nco_bits     = STB0899_DVBS2_BTR_NCO_BITS,
        .btr_gain_shift_offset = STB0899_DVBS2_BTR_GAIN_SHIFT_OFFSET,
        .crl_nco_bits     = STB0899_DVBS2_CRL_NCO_BITS,
        .ldpc_max_iter   = STB0899_DVBS2_LDPC_MAX_ITER,

        .tuner_get_frequency    = stb6100_get_frequency,
        .tuner_set_frequency    = stb6100_set_frequency,
        .tuner_set_bandwidth    = stb6100_set_bandwidth,
        .tuner_get_bandwidth    = stb6100_get_bandwidth,
        .tuner_set_rfsiggain    = NULL,

        /* helper for switching LED green/orange */
        .postproc = pctv45e_postproc
};

static struct stb6100_config stb6100_config = {
        .tuner_address = I2C_ADDR_STB6100,
        .refclock      = 27000000
};


static const struct i2c_algorithm pctv452e_i2c_algo = {
        .master_xfer   = pctv452e_i2c_xfer,
        .functionality = pctv452e_i2c_func
};

static int pctv452e_frontend_attach(struct dvb_usb_adapter *a)
{
        const struct usb_device_id *id;

        a->fe_adap[0].fe = dvb_attach(stb0899_attach, &stb0899_config,
                                                &a->dev->i2c_adap);
        if (!a->fe_adap[0].fe)
                return -ENODEV;

        id = a->dev->desc->warm_ids[0];
        if (id->idVendor == USB_VID_TECHNOTREND &&
            id->idProduct == USB_PID_TECHNOTREND_CONNECT_S2_3650_CI) {
                if (dvb_attach(lnbp22_attach,
                               a->fe_adap[0].fe,
                               &a->dev->i2c_adap) == NULL) {
                        err("Cannot attach lnbp22\n");
                }
                /* Error ignored. */
                tt3650_ci_init(a);
        } else if (dvb_attach(isl6423_attach,
                              a->fe_adap[0].fe,
                              &a->dev->i2c_adap,
                              &pctv452e_isl6423_config) == NULL) {
                err("Cannot attach isl6423\n");
        }

        return 0;
}

static int pctv452e_tuner_attach(struct dvb_usb_adapter *a)
{
        if (!a->fe_adap[0].fe)
                return -ENODEV;
        if (dvb_attach(stb6100_attach, a->fe_adap[0].fe, &stb6100_config,
                                        &a->dev->i2c_adap) == NULL) {
                err("%s failed\n", __func__);
                return -ENODEV;
        }

        return 0;
}

enum {
        PINNACLE_PCTV_452E,
        TECHNOTREND_CONNECT_S2_3600,
        TECHNOTREND_CONNECT_S2_3650_CI,
};

static const struct usb_device_id pctv452e_usb_table[] = {
        DVB_USB_DEV(PINNACLE, PINNACLE_PCTV_452E),
        DVB_USB_DEV(TECHNOTREND, TECHNOTREND_CONNECT_S2_3600),
        DVB_USB_DEV(TECHNOTREND, TECHNOTREND_CONNECT_S2_3650_CI),
        { }
};

MODULE_DEVICE_TABLE(usb, pctv452e_usb_table);

static struct dvb_usb_device_properties pctv452e_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER, /* more ? */
        .usb_ctrl = DEVICE_SPECIFIC,

        .size_of_priv     = sizeof(struct pctv452e_state),

        .power_ctrl       = pctv452e_power_ctrl,

        .rc.core = {
                .rc_codes       = RC_MAP_DIB0700_RC5_TABLE,
                .allowed_protos = RC_PROTO_BIT_RC5,
                .rc_query       = pctv452e_rc_query,
                .rc_interval    = 100,
        },

        .num_adapters     = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{
                        .frontend_attach  = pctv452e_frontend_attach,
                        .tuner_attach     = pctv452e_tuner_attach,

                        /* parameter for the MPEG2-data transfer */
                        .stream = {
                                .type     = USB_ISOC,
                                .count    = 4,
                                .endpoint = 0x02,
                                .u = {
                                        .isoc = {
                                                .framesperurb = 4,
                                                .framesize    = 940,
                                                .interval     = 1
                                        }
                                }
                        },
                } },
        } },

        .i2c_algo = &pctv452e_i2c_algo,

        .generic_bulk_ctrl_endpoint = 1, /* allow generice rw function */

        .num_device_descs = 1,
        .devices = {
                { .name = "PCTV HDTV USB",
                  .cold_ids = { NULL, NULL }, /* this is a warm only device */
                  .warm_ids = { &pctv452e_usb_table[PINNACLE_PCTV_452E], NULL }
                },
                { NULL },
        }
};

static struct dvb_usb_device_properties tt_connect_s2_3600_properties = {
        .caps = DVB_USB_IS_AN_I2C_ADAPTER, /* more ? */
        .usb_ctrl = DEVICE_SPECIFIC,

        .size_of_priv           = sizeof(struct pctv452e_state),

        .power_ctrl             = pctv452e_power_ctrl,
        .read_mac_address       = pctv452e_read_mac_address,

        .rc.core = {
                .rc_codes       = RC_MAP_TT_1500,
                .allowed_protos = RC_PROTO_BIT_RC5,
                .rc_query       = pctv452e_rc_query,
                .rc_interval    = 100,
        },

        .num_adapters           = 1,
        .adapter = {{
                .num_frontends = 1,
                .fe = {{
                        .frontend_attach = pctv452e_frontend_attach,
                        .tuner_attach = pctv452e_tuner_attach,

                        /* parameter for the MPEG2-data transfer */
                        .stream = {
                                .type = USB_ISOC,
                                .count = 4,
                                .endpoint = 0x02,
                                .u = {
                                        .isoc = {
                                                .framesperurb = 64,
                                                .framesize = 940,
                                                .interval = 1
                                        }
                                }
                        },

                } },
        } },

        .i2c_algo = &pctv452e_i2c_algo,

        .generic_bulk_ctrl_endpoint = 1, /* allow generic rw function*/

        .num_device_descs = 2,
        .devices = {
                { .name = "Technotrend TT Connect S2-3600",
                  .cold_ids = { NULL, NULL }, /* this is a warm only device */
                  .warm_ids = { &pctv452e_usb_table[TECHNOTREND_CONNECT_S2_3600], NULL }
                },
                { .name = "Technotrend TT Connect S2-3650-CI",
                  .cold_ids = { NULL, NULL },
                  .warm_ids = { &pctv452e_usb_table[TECHNOTREND_CONNECT_S2_3650_CI], NULL }
                },
                { NULL },
        }
};

static void pctv452e_usb_disconnect(struct usb_interface *intf)
{
        struct dvb_usb_device *d = usb_get_intfdata(intf);

        tt3650_ci_uninit(d);
        dvb_usb_device_exit(intf);
}

static int pctv452e_usb_probe(struct usb_interface *intf,
                                const struct usb_device_id *id)
{
        if (0 == dvb_usb_device_init(intf, &pctv452e_properties,
                                        THIS_MODULE, NULL, adapter_nr) ||
            0 == dvb_usb_device_init(intf, &tt_connect_s2_3600_properties,
                                        THIS_MODULE, NULL, adapter_nr))
                return 0;

        return -ENODEV;
}

static struct usb_driver pctv452e_usb_driver = {
        .name       = "pctv452e",
        .probe      = pctv452e_usb_probe,
        .disconnect = pctv452e_usb_disconnect,
        .id_table   = pctv452e_usb_table,
};

module_usb_driver(pctv452e_usb_driver);

MODULE_AUTHOR("Dominik Kuhlen <dkuhlen@gmx.net>");
MODULE_AUTHOR("Andre Weidemann <Andre.Weidemann@web.de>");
MODULE_AUTHOR("Michael H. Schimek <mschimek@gmx.at>");
MODULE_DESCRIPTION("Pinnacle PCTV HDTV USB DVB / TT connect S2-3600 Driver");
MODULE_LICENSE("GPL");