root/drivers/media/pci/ttpci/budget-av.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * budget-av.ko: driver for the SAA7146 based Budget DVB cards
 *               with analog video input (and optionally with CI)
 *
 * Compiled from various sources by Michael Hunold <michael@mihu.de>
 *
 * CI interface support (c) 2004 Olivier Gournet <ogournet@anevia.com> &
 *                               Andrew de Quincey <adq_dvb@lidskialf.net>
 *
 * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
 *
 * Copyright (C) 1999-2002 Ralph  Metzler
 *                       & Marcus Metzler for convergence integrated media GmbH
 *
 * the project's page is at https://linuxtv.org
 */


#include "budget.h"
#include "stv0299.h"
#include "stb0899_drv.h"
#include "stb0899_reg.h"
#include "stb0899_cfg.h"
#include "tda8261.h"
#include "tda8261_cfg.h"
#include "tda1002x.h"
#include "tda1004x.h"
#include "tua6100.h"
#include "dvb-pll.h"
#include <media/drv-intf/saa7146_vv.h>
#include <linux/module.h>
#include <linux/etherdevice.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>

#include <media/dvb_ca_en50221.h>

#define DEBICICAM               0x02420000

#define SLOTSTATUS_NONE         1
#define SLOTSTATUS_PRESENT      2
#define SLOTSTATUS_RESET        4
#define SLOTSTATUS_READY        8
#define SLOTSTATUS_OCCUPIED     (SLOTSTATUS_PRESENT|SLOTSTATUS_RESET|SLOTSTATUS_READY)

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

struct budget_av {
        struct budget budget;
        struct video_device vd;
        int cur_input;
        int has_saa7113;
        struct work_struct ciintf_irq_bh_work;
        int slot_status;
        struct dvb_ca_en50221 ca;
        u8 reinitialise_demod:1;
};

static int ciintf_slot_shutdown(struct dvb_ca_en50221 *ca, int slot);

/*
 * GPIO Connections:
 * 0 - Vcc/Reset (Reset is controlled by capacitor). Resets the frontend *AS WELL*!
 * 1 - CI memory select 0=>IO memory, 1=>Attribute Memory
 * 2 - CI Card Enable (Active Low)
 * 3 - CI Card Detect
 */

/****************************************************************************
 * INITIALIZATION
 ****************************************************************************/

static u8 i2c_readreg(struct i2c_adapter *i2c, u8 id, u8 reg)
{
        u8 mm1[] = { 0x00 };
        u8 mm2[] = { 0x00 };
        struct i2c_msg msgs[2];

        msgs[0].flags = 0;
        msgs[1].flags = I2C_M_RD;
        msgs[0].addr = msgs[1].addr = id / 2;
        mm1[0] = reg;
        msgs[0].len = 1;
        msgs[1].len = 1;
        msgs[0].buf = mm1;
        msgs[1].buf = mm2;

        i2c_transfer(i2c, msgs, 2);

        return mm2[0];
}

static int i2c_readregs(struct i2c_adapter *i2c, u8 id, u8 reg, u8 *buf, u8 len)
{
        u8 mm1[] = { reg };
        struct i2c_msg msgs[2] = {
                {.addr = id / 2, .flags = 0, .buf = mm1, .len = 1},
                {.addr = id / 2, .flags = I2C_M_RD, .buf = buf, .len = len}
        };

        if (i2c_transfer(i2c, msgs, 2) != 2)
                return -EIO;

        return 0;
}

static int i2c_writereg(struct i2c_adapter *i2c, u8 id, u8 reg, u8 val)
{
        u8 msg[2] = { reg, val };
        struct i2c_msg msgs;

        msgs.flags = 0;
        msgs.addr = id / 2;
        msgs.len = 2;
        msgs.buf = msg;
        return i2c_transfer(i2c, &msgs, 1);
}

static int ciintf_read_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address)
{
        struct budget_av *budget_av = ca->data;
        int result;

        if (slot != 0)
                return -EINVAL;

        saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTHI);
        udelay(1);

        result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, address & 0xfff, 1, 0, 1);
        if (result == -ETIMEDOUT) {
                ciintf_slot_shutdown(ca, slot);
                pr_info("cam ejected 1\n");
        }
        return result;
}

static int ciintf_write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, int address, u8 value)
{
        struct budget_av *budget_av = ca->data;
        int result;

        if (slot != 0)
                return -EINVAL;

        saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTHI);
        udelay(1);

        result = ttpci_budget_debiwrite(&budget_av->budget, DEBICICAM, address & 0xfff, 1, value, 0, 1);
        if (result == -ETIMEDOUT) {
                ciintf_slot_shutdown(ca, slot);
                pr_info("cam ejected 2\n");
        }
        return result;
}

static int ciintf_read_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address)
{
        struct budget_av *budget_av = ca->data;
        int result;

        if (slot != 0)
                return -EINVAL;

        saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);
        udelay(1);

        result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, address & 3, 1, 0, 0);
        if (result == -ETIMEDOUT) {
                ciintf_slot_shutdown(ca, slot);
                pr_info("cam ejected 3\n");
                return -ETIMEDOUT;
        }
        return result;
}

static int ciintf_write_cam_control(struct dvb_ca_en50221 *ca, int slot, u8 address, u8 value)
{
        struct budget_av *budget_av = ca->data;
        int result;

        if (slot != 0)
                return -EINVAL;

        saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);
        udelay(1);

        result = ttpci_budget_debiwrite(&budget_av->budget, DEBICICAM, address & 3, 1, value, 0, 0);
        if (result == -ETIMEDOUT) {
                ciintf_slot_shutdown(ca, slot);
                pr_info("cam ejected 5\n");
        }
        return result;
}

static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot)
{
        struct budget_av *budget_av = ca->data;
        struct saa7146_dev *saa = budget_av->budget.dev;

        if (slot != 0)
                return -EINVAL;

        dprintk(1, "ci slot reset\n");
        budget_av->slot_status = SLOTSTATUS_RESET;

        saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTHI); /* disable card */

        saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTHI); /* Vcc off */
        msleep(2);
        saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO); /* Vcc on */
        msleep(20); /* 20 ms Vcc settling time */

        saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTLO); /* enable card */
        ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
        msleep(20);

        /* reinitialise the frontend if necessary */
        if (budget_av->reinitialise_demod)
                dvb_frontend_reinitialise(budget_av->budget.dvb_frontend);

        return 0;
}

static int ciintf_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
{
        struct budget_av *budget_av = ca->data;
        struct saa7146_dev *saa = budget_av->budget.dev;

        if (slot != 0)
                return -EINVAL;

        dprintk(1, "ci slot shutdown\n");

        ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTB);
        budget_av->slot_status = SLOTSTATUS_NONE;

        return 0;
}

static int ciintf_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
{
        struct budget_av *budget_av = ca->data;
        struct saa7146_dev *saa = budget_av->budget.dev;

        if (slot != 0)
                return -EINVAL;

        dprintk(1, "ci slot status: %d\n", budget_av->slot_status);

        ttpci_budget_set_video_port(saa, BUDGET_VIDEO_PORTA);

        return 0;
}

static int ciintf_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
{
        struct budget_av *budget_av = ca->data;
        struct saa7146_dev *saa = budget_av->budget.dev;
        int result;

        if (slot != 0)
                return -EINVAL;

        /*
         * test the card detect line - needs to be done carefully
         * since it never goes high for some CAMs on this interface (e.g. topuptv)
         */
        if (budget_av->slot_status == SLOTSTATUS_NONE) {
                saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);
                udelay(1);
                if (saa7146_read(saa, PSR) & MASK_06) {
                        if (budget_av->slot_status == SLOTSTATUS_NONE) {
                                budget_av->slot_status = SLOTSTATUS_PRESENT;
                                pr_info("cam inserted A\n");
                        }
                }
                saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);
        }

        /*
         * We also try and read from IO memory to work round the above detection bug. If
         * there is no CAM, we will get a timeout. Only done if there is no cam
         * present, since this test actually breaks some cams :(
         *
         * if the CI interface is not open, we also do the above test since we
         * don't care if the cam has problems - we'll be resetting it on open() anyway
         */
        if ((budget_av->slot_status == SLOTSTATUS_NONE) || (!open)) {
                saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);
                result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, 0, 1, 0, 1);
                if ((result >= 0) && (budget_av->slot_status == SLOTSTATUS_NONE)) {
                        budget_av->slot_status = SLOTSTATUS_PRESENT;
                        pr_info("cam inserted B\n");
                } else if (result < 0) {
                        if (budget_av->slot_status != SLOTSTATUS_NONE) {
                                ciintf_slot_shutdown(ca, slot);
                                pr_info("cam ejected 5\n");
                                return 0;
                        }
                }
        }

        /* read from attribute memory in reset/ready state to know when the CAM is ready */
        if (budget_av->slot_status == SLOTSTATUS_RESET) {
                result = ciintf_read_attribute_mem(ca, slot, 0);
                if (result == 0x1d)
                        budget_av->slot_status = SLOTSTATUS_READY;
        }

        /* work out correct return code */
        if (budget_av->slot_status != SLOTSTATUS_NONE) {
                if (budget_av->slot_status & SLOTSTATUS_READY)
                        return DVB_CA_EN50221_POLL_CAM_PRESENT | DVB_CA_EN50221_POLL_CAM_READY;
                return DVB_CA_EN50221_POLL_CAM_PRESENT;
        }
        return 0;
}

static int ciintf_init(struct budget_av *budget_av)
{
        struct saa7146_dev *saa = budget_av->budget.dev;
        int result;

        memset(&budget_av->ca, 0, sizeof(struct dvb_ca_en50221));

        saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO);
        saa7146_setgpio(saa, 1, SAA7146_GPIO_OUTLO);
        saa7146_setgpio(saa, 2, SAA7146_GPIO_OUTLO);
        saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);

        /* Enable DEBI pins */
        saa7146_write(saa, MC1, MASK_27 | MASK_11);

        /* register CI interface */
        budget_av->ca.owner = THIS_MODULE;
        budget_av->ca.read_attribute_mem = ciintf_read_attribute_mem;
        budget_av->ca.write_attribute_mem = ciintf_write_attribute_mem;
        budget_av->ca.read_cam_control = ciintf_read_cam_control;
        budget_av->ca.write_cam_control = ciintf_write_cam_control;
        budget_av->ca.slot_reset = ciintf_slot_reset;
        budget_av->ca.slot_shutdown = ciintf_slot_shutdown;
        budget_av->ca.slot_ts_enable = ciintf_slot_ts_enable;
        budget_av->ca.poll_slot_status = ciintf_poll_slot_status;
        budget_av->ca.data = budget_av;
        budget_av->budget.ci_present = 1;
        budget_av->slot_status = SLOTSTATUS_NONE;

        result = dvb_ca_en50221_init(&budget_av->budget.dvb_adapter,
                                     &budget_av->ca, 0, 1);
        if (result != 0) {
                pr_err("ci initialisation failed\n");
                goto error;
        }

        pr_info("ci interface initialised\n");
        return 0;

error:
        saa7146_write(saa, MC1, MASK_27);
        return result;
}

static void ciintf_deinit(struct budget_av *budget_av)
{
        struct saa7146_dev *saa = budget_av->budget.dev;

        saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT);
        saa7146_setgpio(saa, 1, SAA7146_GPIO_INPUT);
        saa7146_setgpio(saa, 2, SAA7146_GPIO_INPUT);
        saa7146_setgpio(saa, 3, SAA7146_GPIO_INPUT);

        /* release the CA device */
        dvb_ca_en50221_release(&budget_av->ca);

        /* disable DEBI pins */
        saa7146_write(saa, MC1, MASK_27);
}


static const u8 saa7113_tab[] = {
        0x01, 0x08,
        0x02, 0xc0,
        0x03, 0x33,
        0x04, 0x00,
        0x05, 0x00,
        0x06, 0xeb,
        0x07, 0xe0,
        0x08, 0x28,
        0x09, 0x00,
        0x0a, 0x80,
        0x0b, 0x47,
        0x0c, 0x40,
        0x0d, 0x00,
        0x0e, 0x01,
        0x0f, 0x44,

        0x10, 0x08,
        0x11, 0x0c,
        0x12, 0x7b,
        0x13, 0x00,
        0x15, 0x00, 0x16, 0x00, 0x17, 0x00,

        0x57, 0xff,
        0x40, 0x82, 0x58, 0x00, 0x59, 0x54, 0x5a, 0x07,
        0x5b, 0x83, 0x5e, 0x00,
        0xff
};

static int saa7113_init(struct budget_av *budget_av)
{
        struct budget *budget = &budget_av->budget;
        struct saa7146_dev *saa = budget->dev;
        const u8 *data = saa7113_tab;

        saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTHI);
        msleep(200);

        if (i2c_writereg(&budget->i2c_adap, 0x4a, 0x01, 0x08) != 1) {
                dprintk(1, "saa7113 not found on KNC card\n");
                return -ENODEV;
        }

        dprintk(1, "saa7113 detected and initializing\n");

        while (*data != 0xff) {
                i2c_writereg(&budget->i2c_adap, 0x4a, *data, *(data + 1));
                data += 2;
        }

        dprintk(1, "saa7113  status=%02x\n", i2c_readreg(&budget->i2c_adap, 0x4a, 0x1f));

        return 0;
}

static int saa7113_setinput(struct budget_av *budget_av, int input)
{
        struct budget *budget = &budget_av->budget;

        if (budget_av->has_saa7113 != 1)
                return -ENODEV;

        if (input == 1) {
                i2c_writereg(&budget->i2c_adap, 0x4a, 0x02, 0xc7);
                i2c_writereg(&budget->i2c_adap, 0x4a, 0x09, 0x80);
        } else if (input == 0) {
                i2c_writereg(&budget->i2c_adap, 0x4a, 0x02, 0xc0);
                i2c_writereg(&budget->i2c_adap, 0x4a, 0x09, 0x00);
        } else {
                return -EINVAL;
        }

        budget_av->cur_input = input;
        return 0;
}


static int philips_su1278_ty_ci_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio)
{
        u8 aclk = 0;
        u8 bclk = 0;
        u8 m1;

        aclk = 0xb5;
        if (srate < 2000000)
                bclk = 0x86;
        else if (srate < 5000000)
                bclk = 0x89;
        else if (srate < 15000000)
                bclk = 0x8f;
        else if (srate < 45000000)
                bclk = 0x95;

        m1 = 0x14;
        if (srate < 4000000)
                m1 = 0x10;

        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);
        stv0299_writereg(fe, 0x0f, 0x80 | m1);

        return 0;
}

static int philips_su1278_ty_ci_tuner_set_params(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        u32 div;
        u8 buf[4];
        struct budget *budget = fe->dvb->priv;
        struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };

        if ((c->frequency < 950000) || (c->frequency > 2150000))
                return -EINVAL;

        div = (c->frequency + (125 - 1)) / 125; /* round correctly */
        buf[0] = (div >> 8) & 0x7f;
        buf[1] = div & 0xff;
        buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
        buf[3] = 0x20;

        if (c->symbol_rate < 4000000)
                buf[3] |= 1;

        if (c->frequency < 1250000)
                buf[3] |= 0;
        else if (c->frequency < 1550000)
                buf[3] |= 0x40;
        else if (c->frequency < 2050000)
                buf[3] |= 0x80;
        else if (c->frequency < 2150000)
                buf[3] |= 0xC0;

        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&budget->i2c_adap, &msg, 1) != 1)
                return -EIO;
        return 0;
}

static u8 typhoon_cinergy1200s_inittab[] = {
        0x01, 0x15,
        0x02, 0x30,
        0x03, 0x00,
        0x04, 0x7d,             /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
        0x05, 0x35,             /* I2CT = 0, SCLT = 1, SDAT = 1 */
        0x06, 0x40,             /* DAC not used, set to high impendance mode */
        0x07, 0x00,             /* DAC LSB */
        0x08, 0x40,             /* DiSEqC off */
        0x09, 0x00,             /* FIFO */
        0x0c, 0x51,             /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
        0x0d, 0x82,             /* DC offset compensation = ON, beta_agc1 = 2 */
        0x0e, 0x23,             /* alpha_tmg = 2, beta_tmg = 3 */
        0x10, 0x3f,             // AGC2  0x3d
        0x11, 0x84,
        0x12, 0xb9,
        0x15, 0xc9,             // lock detector threshold
        0x16, 0x00,
        0x17, 0x00,
        0x18, 0x00,
        0x19, 0x00,
        0x1a, 0x00,
        0x1f, 0x50,
        0x20, 0x00,
        0x21, 0x00,
        0x22, 0x00,
        0x23, 0x00,
        0x28, 0x00,             // out imp: normal  out type: parallel FEC mode:0
        0x29, 0x1e,             // 1/2 threshold
        0x2a, 0x14,             // 2/3 threshold
        0x2b, 0x0f,             // 3/4 threshold
        0x2c, 0x09,             // 5/6 threshold
        0x2d, 0x05,             // 7/8 threshold
        0x2e, 0x01,
        0x31, 0x1f,             // test all FECs
        0x32, 0x19,             // viterbi and synchro search
        0x33, 0xfc,             // rs control
        0x34, 0x93,             // error control
        0x0f, 0x92,
        0xff, 0xff
};

static const struct stv0299_config typhoon_config = {
        .demod_address = 0x68,
        .inittab = typhoon_cinergy1200s_inittab,
        .mclk = 88000000UL,
        .invert = 0,
        .skip_reinit = 0,
        .lock_output = STV0299_LOCKOUTPUT_1,
        .volt13_op0_op1 = STV0299_VOLT13_OP0,
        .min_delay_ms = 100,
        .set_symbol_rate = philips_su1278_ty_ci_set_symbol_rate,
};


static const struct stv0299_config cinergy_1200s_config = {
        .demod_address = 0x68,
        .inittab = typhoon_cinergy1200s_inittab,
        .mclk = 88000000UL,
        .invert = 0,
        .skip_reinit = 0,
        .lock_output = STV0299_LOCKOUTPUT_0,
        .volt13_op0_op1 = STV0299_VOLT13_OP0,
        .min_delay_ms = 100,
        .set_symbol_rate = philips_su1278_ty_ci_set_symbol_rate,
};

static const struct stv0299_config cinergy_1200s_1894_0010_config = {
        .demod_address = 0x68,
        .inittab = typhoon_cinergy1200s_inittab,
        .mclk = 88000000UL,
        .invert = 1,
        .skip_reinit = 0,
        .lock_output = STV0299_LOCKOUTPUT_1,
        .volt13_op0_op1 = STV0299_VOLT13_OP0,
        .min_delay_ms = 100,
        .set_symbol_rate = philips_su1278_ty_ci_set_symbol_rate,
};

static int philips_cu1216_tuner_set_params(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        struct budget *budget = fe->dvb->priv;
        u8 buf[6];
        struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };
        int i;

#define CU1216_IF 36125000
#define TUNER_MUL 62500

        u32 div = (c->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL;

        buf[0] = (div >> 8) & 0x7f;
        buf[1] = div & 0xff;
        buf[2] = 0xce;
        buf[3] = (c->frequency < 150000000 ? 0x01 :
                  c->frequency < 445000000 ? 0x02 : 0x04);
        buf[4] = 0xde;
        buf[5] = 0x20;

        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&budget->i2c_adap, &msg, 1) != 1)
                return -EIO;

        /* wait for the pll lock */
        msg.flags = I2C_M_RD;
        msg.len = 1;
        for (i = 0; i < 20; i++) {
                if (fe->ops.i2c_gate_ctrl)
                        fe->ops.i2c_gate_ctrl(fe, 1);
                if (i2c_transfer(&budget->i2c_adap, &msg, 1) == 1 && (buf[0] & 0x40))
                        break;
                msleep(10);
        }

        /* switch the charge pump to the lower current */
        msg.flags = 0;
        msg.len = 2;
        msg.buf = &buf[2];
        buf[2] &= ~0x40;
        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&budget->i2c_adap, &msg, 1) != 1)
                return -EIO;

        return 0;
}

static struct tda1002x_config philips_cu1216_config = {
        .demod_address = 0x0c,
        .invert = 1,
};

static struct tda1002x_config philips_cu1216_config_altaddress = {
        .demod_address = 0x0d,
        .invert = 0,
};

static struct tda10023_config philips_cu1216_tda10023_config = {
        .demod_address = 0x0c,
        .invert = 1,
};

static int philips_tu1216_tuner_init(struct dvb_frontend *fe)
{
        struct budget *budget = fe->dvb->priv;
        static u8 tu1216_init[] = { 0x0b, 0xf5, 0x85, 0xab };
        struct i2c_msg tuner_msg = {.addr = 0x60, .flags = 0, .buf = tu1216_init, .len = sizeof(tu1216_init) };

        // setup PLL configuration
        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&budget->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;
        msleep(1);

        return 0;
}

static int philips_tu1216_tuner_set_params(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        struct budget *budget = fe->dvb->priv;
        u8 tuner_buf[4];
        struct i2c_msg tuner_msg = {.addr = 0x60, .flags = 0, .buf = tuner_buf, .len =
                        sizeof(tuner_buf) };
        int tuner_frequency = 0;
        u8 band, cp, filter;

        // determine charge pump
        tuner_frequency = c->frequency + 36166000;
        if (tuner_frequency < 87000000)
                return -EINVAL;
        else if (tuner_frequency < 130000000)
                cp = 3;
        else if (tuner_frequency < 160000000)
                cp = 5;
        else if (tuner_frequency < 200000000)
                cp = 6;
        else if (tuner_frequency < 290000000)
                cp = 3;
        else if (tuner_frequency < 420000000)
                cp = 5;
        else if (tuner_frequency < 480000000)
                cp = 6;
        else if (tuner_frequency < 620000000)
                cp = 3;
        else if (tuner_frequency < 830000000)
                cp = 5;
        else if (tuner_frequency < 895000000)
                cp = 7;
        else
                return -EINVAL;

        // determine band
        if (c->frequency < 49000000)
                return -EINVAL;
        else if (c->frequency < 161000000)
                band = 1;
        else if (c->frequency < 444000000)
                band = 2;
        else if (c->frequency < 861000000)
                band = 4;
        else
                return -EINVAL;

        // setup PLL filter
        switch (c->bandwidth_hz) {
        case 6000000:
                filter = 0;
                break;

        case 7000000:
                filter = 0;
                break;

        case 8000000:
                filter = 1;
                break;

        default:
                return -EINVAL;
        }

        // calculate divisor
        // ((36166000+((1000000/6)/2)) + Finput)/(1000000/6)
        tuner_frequency = (((c->frequency / 1000) * 6) + 217496) / 1000;

        // setup tuner buffer
        tuner_buf[0] = (tuner_frequency >> 8) & 0x7f;
        tuner_buf[1] = tuner_frequency & 0xff;
        tuner_buf[2] = 0xca;
        tuner_buf[3] = (cp << 5) | (filter << 3) | band;

        if (fe->ops.i2c_gate_ctrl)
                fe->ops.i2c_gate_ctrl(fe, 1);
        if (i2c_transfer(&budget->i2c_adap, &tuner_msg, 1) != 1)
                return -EIO;

        msleep(1);
        return 0;
}

static int philips_tu1216_request_firmware(struct dvb_frontend *fe,
                                           const struct firmware **fw, char *name)
{
        struct budget *budget = fe->dvb->priv;

        return request_firmware(fw, name, &budget->dev->pci->dev);
}

static struct tda1004x_config philips_tu1216_config = {

        .demod_address = 0x8,
        .invert = 1,
        .invert_oclk = 1,
        .xtal_freq = TDA10046_XTAL_4M,
        .agc_config = TDA10046_AGC_DEFAULT,
        .if_freq = TDA10046_FREQ_3617,
        .request_firmware = philips_tu1216_request_firmware,
};

static u8 philips_sd1878_inittab[] = {
        0x01, 0x15,
        0x02, 0x30,
        0x03, 0x00,
        0x04, 0x7d,
        0x05, 0x35,
        0x06, 0x40,
        0x07, 0x00,
        0x08, 0x43,
        0x09, 0x02,
        0x0C, 0x51,
        0x0D, 0x82,
        0x0E, 0x23,
        0x10, 0x3f,
        0x11, 0x84,
        0x12, 0xb9,
        0x15, 0xc9,
        0x16, 0x19,
        0x17, 0x8c,
        0x18, 0x59,
        0x19, 0xf8,
        0x1a, 0xfe,
        0x1c, 0x7f,
        0x1d, 0x00,
        0x1e, 0x00,
        0x1f, 0x50,
        0x20, 0x00,
        0x21, 0x00,
        0x22, 0x00,
        0x23, 0x00,
        0x28, 0x00,
        0x29, 0x28,
        0x2a, 0x14,
        0x2b, 0x0f,
        0x2c, 0x09,
        0x2d, 0x09,
        0x31, 0x1f,
        0x32, 0x19,
        0x33, 0xfc,
        0x34, 0x93,
        0xff, 0xff
};

static int philips_sd1878_ci_set_symbol_rate(struct dvb_frontend *fe,
                u32 srate, u32 ratio)
{
        u8 aclk = 0;
        u8 bclk = 0;
        u8 m1;

        aclk = 0xb5;
        if (srate < 2000000)
                bclk = 0x86;
        else if (srate < 5000000)
                bclk = 0x89;
        else if (srate < 15000000)
                bclk = 0x8f;
        else if (srate < 45000000)
                bclk = 0x95;

        m1 = 0x14;
        if (srate < 4000000)
                m1 = 0x10;

        stv0299_writereg(fe, 0x0e, 0x23);
        stv0299_writereg(fe, 0x0f, 0x94);
        stv0299_writereg(fe, 0x10, 0x39);
        stv0299_writereg(fe, 0x13, aclk);
        stv0299_writereg(fe, 0x14, bclk);
        stv0299_writereg(fe, 0x15, 0xc9);
        stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
        stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
        stv0299_writereg(fe, 0x21, (ratio) & 0xf0);
        stv0299_writereg(fe, 0x0f, 0x80 | m1);

        return 0;
}

static const struct stv0299_config philips_sd1878_config = {
        .demod_address = 0x68,
        .inittab = philips_sd1878_inittab,
        .mclk = 88000000UL,
        .invert = 0,
        .skip_reinit = 0,
        .lock_output = STV0299_LOCKOUTPUT_1,
        .volt13_op0_op1 = STV0299_VOLT13_OP0,
        .min_delay_ms = 100,
        .set_symbol_rate = philips_sd1878_ci_set_symbol_rate,
};

/* KNC1 DVB-S (STB0899) Inittab */
static const struct stb0899_s1_reg knc1_stb0899_s1_init_1[] = {

        { STB0899_DEV_ID,               0x81 },
        { STB0899_DISCNTRL1,            0x32 },
        { STB0899_DISCNTRL2,            0x80 },
        { STB0899_DISRX_ST0,            0x04 },
        { STB0899_DISRX_ST1,            0x00 },
        { STB0899_DISPARITY,            0x00 },
        { STB0899_DISSTATUS,            0x20 },
        { STB0899_DISF22,               0x8c },
        { STB0899_DISF22RX,             0x9a },
        { STB0899_SYSREG,               0x0b },
        { STB0899_ACRPRESC,             0x11 },
        { STB0899_ACRDIV1,              0x0a },
        { STB0899_ACRDIV2,              0x05 },
        { STB0899_DACR1,                0x00 },
        { STB0899_DACR2,                0x00 },
        { STB0899_OUTCFG,               0x00 },
        { STB0899_MODECFG,              0x00 },
        { STB0899_IRQSTATUS_3,          0x30 },
        { STB0899_IRQSTATUS_2,          0x00 },
        { STB0899_IRQSTATUS_1,          0x00 },
        { STB0899_IRQSTATUS_0,          0x00 },
        { STB0899_IRQMSK_3,             0xf3 },
        { STB0899_IRQMSK_2,             0xfc },
        { STB0899_IRQMSK_1,             0xff },
        { STB0899_IRQMSK_0,             0xff },
        { STB0899_IRQCFG,               0x00 },
        { STB0899_I2CCFG,               0x88 },
        { STB0899_I2CRPT,               0x58 }, /* Repeater=8, Stop=disabled */
        { STB0899_IOPVALUE5,            0x00 },
        { STB0899_IOPVALUE4,            0x20 },
        { STB0899_IOPVALUE3,            0xc9 },
        { STB0899_IOPVALUE2,            0x90 },
        { STB0899_IOPVALUE1,            0x40 },
        { STB0899_IOPVALUE0,            0x00 },
        { STB0899_GPIO00CFG,            0x82 },
        { STB0899_GPIO01CFG,            0x82 },
        { 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,             0x08 }, /* 0x1c */
        { STB0899_GPIO22,               0x82 }, /* AGCBB2CFG */
        { STB0899_GPIO21,               0x91 }, /* AGCBB1CFG */
        { STB0899_DIRCLKCFG,            0x82 },
        { STB0899_CLKOUT27CFG,          0x7e },
        { STB0899_STDBYCFG,             0x82 },
        { STB0899_CS0CFG,               0x82 },
        { STB0899_CS1CFG,               0x82 },
        { STB0899_DISEQCOCFG,           0x20 },
        { STB0899_GPIO32CFG,            0x82 },
        { STB0899_GPIO33CFG,            0x82 },
        { STB0899_GPIO34CFG,            0x82 },
        { STB0899_GPIO35CFG,            0x82 },
        { STB0899_GPIO36CFG,            0x82 },
        { STB0899_GPIO37CFG,            0x82 },
        { STB0899_GPIO38CFG,            0x82 },
        { STB0899_GPIO39CFG,            0x82 },
        { STB0899_NCOARSE,              0x15 }, /* 0x15 = 27 Mhz Clock, F/3 = 198MHz, F/6 = 99MHz */
        { STB0899_SYNTCTRL,             0x02 }, /* 0x00 = CLK from CLKI, 0x02 = CLK from XTALI */
        { STB0899_FILTCTRL,             0x00 },
        { STB0899_SYSCTRL,              0x00 },
        { STB0899_STOPCLK1,             0x20 },
        { STB0899_STOPCLK2,             0x00 },
        { STB0899_INTBUFSTATUS,         0x00 },
        { STB0899_INTBUFCTRL,           0x0a },
        { 0xffff,                       0xff },
};

static const struct stb0899_s1_reg knc1_stb0899_s1_init_3[] = {
        { STB0899_DEMOD,                0x00 },
        { STB0899_RCOMPC,               0xc9 },
        { STB0899_AGC1CN,               0x41 },
        { STB0899_AGC1REF,              0x08 },
        { STB0899_RTC,                  0x7a },
        { STB0899_TMGCFG,               0x4e },
        { STB0899_AGC2REF,              0x33 },
        { STB0899_TLSR,                 0x84 },
        { STB0899_CFD,                  0xee },
        { STB0899_ACLC,                 0x87 },
        { STB0899_BCLC,                 0x94 },
        { STB0899_EQON,                 0x41 },
        { STB0899_LDT,                  0xdd },
        { STB0899_LDT2,                 0xc9 },
        { STB0899_EQUALREF,             0xb4 },
        { STB0899_TMGRAMP,              0x10 },
        { STB0899_TMGTHD,               0x30 },
        { STB0899_IDCCOMP,              0xfb },
        { STB0899_QDCCOMP,              0x03 },
        { STB0899_POWERI,               0x3b },
        { STB0899_POWERQ,               0x3d },
        { STB0899_RCOMP,                0x81 },
        { STB0899_AGCIQIN,              0x80 },
        { STB0899_AGC2I1,               0x04 },
        { STB0899_AGC2I2,               0xf5 },
        { STB0899_TLIR,                 0x25 },
        { STB0899_RTF,                  0x80 },
        { STB0899_DSTATUS,              0x00 },
        { STB0899_LDI,                  0xca },
        { STB0899_CFRM,                 0xf1 },
        { STB0899_CFRL,                 0xf3 },
        { STB0899_NIRM,                 0x2a },
        { STB0899_NIRL,                 0x05 },
        { STB0899_ISYMB,                0x17 },
        { STB0899_QSYMB,                0xfa },
        { STB0899_SFRH,                 0x2f },
        { STB0899_SFRM,                 0x68 },
        { STB0899_SFRL,                 0x40 },
        { STB0899_SFRUPH,               0x2f },
        { STB0899_SFRUPM,               0x68 },
        { STB0899_SFRUPL,               0x40 },
        { STB0899_EQUAI1,               0xfd },
        { STB0899_EQUAQ1,               0x04 },
        { STB0899_EQUAI2,               0x0f },
        { STB0899_EQUAQ2,               0xff },
        { STB0899_EQUAI3,               0xdf },
        { STB0899_EQUAQ3,               0xfa },
        { STB0899_EQUAI4,               0x37 },
        { STB0899_EQUAQ4,               0x0d },
        { STB0899_EQUAI5,               0xbd },
        { STB0899_EQUAQ5,               0xf7 },
        { STB0899_DSTATUS2,             0x00 },
        { STB0899_VSTATUS,              0x00 },
        { STB0899_VERROR,               0xff },
        { STB0899_IQSWAP,               0x2a },
        { STB0899_ECNT1M,               0x00 },
        { STB0899_ECNT1L,               0x00 },
        { STB0899_ECNT2M,               0x00 },
        { STB0899_ECNT2L,               0x00 },
        { STB0899_ECNT3M,               0x00 },
        { STB0899_ECNT3L,               0x00 },
        { STB0899_FECAUTO1,             0x06 },
        { STB0899_FECM,                 0x01 },
        { STB0899_VTH12,                0xf0 },
        { STB0899_VTH23,                0xa0 },
        { STB0899_VTH34,                0x78 },
        { STB0899_VTH56,                0x4e },
        { STB0899_VTH67,                0x48 },
        { STB0899_VTH78,                0x38 },
        { STB0899_PRVIT,                0xff },
        { STB0899_VITSYNC,              0x19 },
        { STB0899_RSULC,                0xb1 }, /* DVB = 0xb1, DSS = 0xa1 */
        { STB0899_TSULC,                0x42 },
        { STB0899_RSLLC,                0x40 },
        { STB0899_TSLPL,                0x12 },
        { STB0899_TSCFGH,               0x0c },
        { STB0899_TSCFGM,               0x00 },
        { STB0899_TSCFGL,               0x0c },
        { STB0899_TSOUT,                0x4d }, /* 0x0d for CAM */
        { STB0899_RSSYNCDEL,            0x00 },
        { STB0899_TSINHDELH,            0x02 },
        { STB0899_TSINHDELM,            0x00 },
        { STB0899_TSINHDELL,            0x00 },
        { STB0899_TSLLSTKM,             0x00 },
        { STB0899_TSLLSTKL,             0x00 },
        { STB0899_TSULSTKM,             0x00 },
        { STB0899_TSULSTKL,             0xab },
        { STB0899_PCKLENUL,             0x00 },
        { STB0899_PCKLENLL,             0xcc },
        { STB0899_RSPCKLEN,             0xcc },
        { STB0899_TSSTATUS,             0x80 },
        { STB0899_ERRCTRL1,             0xb6 },
        { STB0899_ERRCTRL2,             0x96 },
        { STB0899_ERRCTRL3,             0x89 },
        { STB0899_DMONMSK1,             0x27 },
        { STB0899_DMONMSK0,             0x03 },
        { STB0899_DEMAPVIT,             0x5c },
        { STB0899_PLPARM,               0x1f },
        { 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,              0x00 },
        { STB0899_MATSTRL,              0x00 },
        { STB0899_UPLSTRM,              0x00 },
        { STB0899_UPLSTRL,              0x00 },
        { STB0899_DFLSTRM,              0x00 },
        { STB0899_DFLSTRL,              0x00 },
        { STB0899_SYNCSTR,              0x00 },
        { STB0899_SYNCDSTRM,            0x00 },
        { STB0899_SYNCDSTRL,            0x00 },
        { STB0899_CFGPDELSTATUS1,       0x10 },
        { STB0899_CFGPDELSTATUS2,       0x00 },
        { STB0899_BBFERRORM,            0x00 },
        { STB0899_BBFERRORL,            0x00 },
        { STB0899_UPKTERRORM,           0x00 },
        { STB0899_UPKTERRORL,           0x00 },
        { 0xffff,                       0xff },
};

/* STB0899 demodulator config for the KNC1 and clones */
static struct stb0899_config knc1_dvbs2_config = {
        .init_dev               = knc1_stb0899_s1_init_1,
        .init_s2_demod          = stb0899_s2_init_2,
        .init_s1_demod          = knc1_stb0899_s1_init_3,
        .init_s2_fec            = stb0899_s2_init_4,
        .init_tst               = stb0899_s1_init_5,

        .postproc               = NULL,

        .demod_address          = 0x68,
//      .ts_output_mode         = STB0899_OUT_PARALLEL, /* types = SERIAL/PARALLEL      */
        .block_sync_mode        = STB0899_SYNC_FORCED,  /* DSS, SYNC_FORCED/UNSYNCED    */
//      .ts_pfbit_toggle        = STB0899_MPEG_NORMAL,  /* DirecTV, MPEG toggling seq   */

        .xtal_freq              = 27000000,
        .inversion              = IQ_SWAP_OFF,

        .lo_clk                 = 76500000,
        .hi_clk                 = 90000000,

        .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    = tda8261_get_frequency,
        .tuner_set_frequency    = tda8261_set_frequency,
        .tuner_set_bandwidth    = NULL,
        .tuner_get_bandwidth    = tda8261_get_bandwidth,
        .tuner_set_rfsiggain    = NULL
};

/*
 * SD1878/SHA tuner config
 * 1F, Single I/P, Horizontal mount, High Sensitivity
 */
static const struct tda8261_config sd1878c_config = {
//      .name           = "SD1878/SHA",
        .addr           = 0x60,
        .step_size      = TDA8261_STEP_1000 /* kHz */
};

static u8 read_pwm(struct budget_av *budget_av)
{
        u8 b = 0xff;
        u8 pwm;
        struct i2c_msg msg[] = { {.addr = 0x50, .flags = 0, .buf = &b, .len = 1},
        {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1}
        };

        if ((i2c_transfer(&budget_av->budget.i2c_adap, msg, 2) != 2)
            || (pwm == 0xff))
                pwm = 0x48;

        return pwm;
}

#define SUBID_DVBS_KNC1                 0x0010
#define SUBID_DVBS_KNC1_PLUS            0x0011
#define SUBID_DVBS_TYPHOON              0x4f56
#define SUBID_DVBS_CINERGY1200          0x1154
#define SUBID_DVBS_CYNERGY1200N         0x1155
#define SUBID_DVBS_TV_STAR              0x0014
#define SUBID_DVBS_TV_STAR_PLUS_X4      0x0015
#define SUBID_DVBS_TV_STAR_CI           0x0016
#define SUBID_DVBS2_KNC1                0x0018
#define SUBID_DVBS2_KNC1_OEM            0x0019
#define SUBID_DVBS_EASYWATCH_1          0x001a
#define SUBID_DVBS_EASYWATCH_2          0x001b
#define SUBID_DVBS2_EASYWATCH           0x001d
#define SUBID_DVBS_EASYWATCH            0x001e

#define SUBID_DVBC_EASYWATCH            0x002a
#define SUBID_DVBC_EASYWATCH_MK3        0x002c
#define SUBID_DVBC_KNC1                 0x0020
#define SUBID_DVBC_KNC1_PLUS            0x0021
#define SUBID_DVBC_KNC1_MK3             0x0022
#define SUBID_DVBC_KNC1_TDA10024        0x0028
#define SUBID_DVBC_KNC1_PLUS_MK3        0x0023
#define SUBID_DVBC_CINERGY1200          0x1156
#define SUBID_DVBC_CINERGY1200_MK3      0x1176

#define SUBID_DVBT_EASYWATCH            0x003a
#define SUBID_DVBT_KNC1_PLUS            0x0031
#define SUBID_DVBT_KNC1                 0x0030
#define SUBID_DVBT_CINERGY1200          0x1157

static void frontend_init(struct budget_av *budget_av)
{
        struct saa7146_dev *saa = budget_av->budget.dev;
        struct dvb_frontend *fe = NULL;

        /* Enable / PowerON Frontend */
        saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO);

        /* Wait for PowerON */
        msleep(100);

        /* additional setup necessary for the PLUS cards */
        switch (saa->pci->subsystem_device) {
        case SUBID_DVBS_KNC1_PLUS:
        case SUBID_DVBC_KNC1_PLUS:
        case SUBID_DVBT_KNC1_PLUS:
        case SUBID_DVBC_EASYWATCH:
        case SUBID_DVBC_KNC1_PLUS_MK3:
        case SUBID_DVBS2_KNC1:
        case SUBID_DVBS2_KNC1_OEM:
        case SUBID_DVBS2_EASYWATCH:
                saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTHI);
                break;
        }

        switch (saa->pci->subsystem_device) {

        case SUBID_DVBS_KNC1:
                /*
                 * maybe that setting is needed for other dvb-s cards as well,
                 * but so far it has been only confirmed for this type
                 */
                budget_av->reinitialise_demod = 1;
                fallthrough;
        case SUBID_DVBS_KNC1_PLUS:
        case SUBID_DVBS_EASYWATCH_1:
                if (saa->pci->subsystem_vendor == 0x1894) {
                        fe = dvb_attach(stv0299_attach, &cinergy_1200s_1894_0010_config,
                                             &budget_av->budget.i2c_adap);
                        if (fe)
                                dvb_attach(tua6100_attach, fe, 0x60, &budget_av->budget.i2c_adap);
                } else {
                        fe = dvb_attach(stv0299_attach, &typhoon_config,
                                             &budget_av->budget.i2c_adap);
                        if (fe)
                                fe->ops.tuner_ops.set_params = philips_su1278_ty_ci_tuner_set_params;
                }
                break;

        case SUBID_DVBS_TV_STAR:
        case SUBID_DVBS_TV_STAR_PLUS_X4:
        case SUBID_DVBS_TV_STAR_CI:
        case SUBID_DVBS_CYNERGY1200N:
        case SUBID_DVBS_EASYWATCH:
        case SUBID_DVBS_EASYWATCH_2:
                fe = dvb_attach(stv0299_attach, &philips_sd1878_config,
                                &budget_av->budget.i2c_adap);
                if (fe)
                        dvb_attach(dvb_pll_attach, fe, 0x60,
                                   &budget_av->budget.i2c_adap,
                                   DVB_PLL_PHILIPS_SD1878_TDA8261);
                break;

        case SUBID_DVBS_TYPHOON:
                fe = dvb_attach(stv0299_attach, &typhoon_config,
                                    &budget_av->budget.i2c_adap);
                if (fe)
                        fe->ops.tuner_ops.set_params = philips_su1278_ty_ci_tuner_set_params;
                break;
        case SUBID_DVBS2_KNC1:
        case SUBID_DVBS2_KNC1_OEM:
        case SUBID_DVBS2_EASYWATCH:
                budget_av->reinitialise_demod = 1;
                fe = dvb_attach(stb0899_attach, &knc1_dvbs2_config, &budget_av->budget.i2c_adap);
                if (fe)
                        dvb_attach(tda8261_attach, fe, &sd1878c_config, &budget_av->budget.i2c_adap);

                break;
        case SUBID_DVBS_CINERGY1200:
                fe = dvb_attach(stv0299_attach, &cinergy_1200s_config,
                                    &budget_av->budget.i2c_adap);
                if (fe)
                        fe->ops.tuner_ops.set_params = philips_su1278_ty_ci_tuner_set_params;
                break;

        case SUBID_DVBC_KNC1:
        case SUBID_DVBC_KNC1_PLUS:
        case SUBID_DVBC_CINERGY1200:
        case SUBID_DVBC_EASYWATCH:
                budget_av->reinitialise_demod = 1;
                budget_av->budget.dev->i2c_bitrate = SAA7146_I2C_BUS_BIT_RATE_240;
                fe = dvb_attach(tda10021_attach, &philips_cu1216_config,
                                     &budget_av->budget.i2c_adap,
                                     read_pwm(budget_av));
                if (fe == NULL)
                        fe = dvb_attach(tda10021_attach, &philips_cu1216_config_altaddress,
                                             &budget_av->budget.i2c_adap,
                                             read_pwm(budget_av));
                if (fe)
                        fe->ops.tuner_ops.set_params = philips_cu1216_tuner_set_params;
                break;

        case SUBID_DVBC_EASYWATCH_MK3:
        case SUBID_DVBC_CINERGY1200_MK3:
        case SUBID_DVBC_KNC1_MK3:
        case SUBID_DVBC_KNC1_TDA10024:
        case SUBID_DVBC_KNC1_PLUS_MK3:
                budget_av->reinitialise_demod = 1;
                budget_av->budget.dev->i2c_bitrate = SAA7146_I2C_BUS_BIT_RATE_240;
                fe = dvb_attach(tda10023_attach,
                        &philips_cu1216_tda10023_config,
                        &budget_av->budget.i2c_adap,
                        read_pwm(budget_av));
                if (fe)
                        fe->ops.tuner_ops.set_params = philips_cu1216_tuner_set_params;
                break;

        case SUBID_DVBT_EASYWATCH:
        case SUBID_DVBT_KNC1:
        case SUBID_DVBT_KNC1_PLUS:
        case SUBID_DVBT_CINERGY1200:
                budget_av->reinitialise_demod = 1;
                fe = dvb_attach(tda10046_attach, &philips_tu1216_config,
                                     &budget_av->budget.i2c_adap);
                if (fe) {
                        fe->ops.tuner_ops.init = philips_tu1216_tuner_init;
                        fe->ops.tuner_ops.set_params = philips_tu1216_tuner_set_params;
                }
                break;
        }

        if (fe == NULL) {
                pr_err("A frontend driver was not found for device [%04x:%04x] subsystem [%04x:%04x]\n",
                       saa->pci->vendor,
                       saa->pci->device,
                       saa->pci->subsystem_vendor,
                       saa->pci->subsystem_device);
                return;
        }

        budget_av->budget.dvb_frontend = fe;

        if (dvb_register_frontend(&budget_av->budget.dvb_adapter,
                                  budget_av->budget.dvb_frontend)) {
                pr_err("Frontend registration failed!\n");
                dvb_frontend_detach(budget_av->budget.dvb_frontend);
                budget_av->budget.dvb_frontend = NULL;
        }
}


static void budget_av_irq(struct saa7146_dev *dev, u32 *isr)
{
        struct budget_av *budget_av = dev->ext_priv;

        dprintk(8, "dev: %p, budget_av: %p\n", dev, budget_av);

        if (*isr & MASK_10)
                ttpci_budget_irq10_handler(dev, isr);
}

static int budget_av_detach(struct saa7146_dev *dev)
{
        struct budget_av *budget_av = dev->ext_priv;
        int err;

        dprintk(2, "dev: %p\n", dev);

        if (budget_av->has_saa7113 == 1) {
                saa7146_setgpio(dev, 0, SAA7146_GPIO_OUTLO);

                msleep(200);

                saa7146_unregister_device(&budget_av->vd, dev);

                saa7146_vv_release(dev);
        }

        if (budget_av->budget.ci_present)
                ciintf_deinit(budget_av);

        if (budget_av->budget.dvb_frontend != NULL) {
                dvb_unregister_frontend(budget_av->budget.dvb_frontend);
                dvb_frontend_detach(budget_av->budget.dvb_frontend);
        }
        err = ttpci_budget_deinit(&budget_av->budget);

        kfree(budget_av);

        return err;
}

#define KNC1_INPUTS 2
static struct v4l2_input knc1_inputs[KNC1_INPUTS] = {
        { 0, "Composite", V4L2_INPUT_TYPE_TUNER, 1, 0,
                V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
        { 1, "S-Video", V4L2_INPUT_TYPE_CAMERA, 2, 0,
                V4L2_STD_PAL_BG | V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
};

static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
{
        dprintk(1, "VIDIOC_ENUMINPUT %d\n", i->index);
        if (i->index >= KNC1_INPUTS)
                return -EINVAL;
        memcpy(i, &knc1_inputs[i->index], sizeof(struct v4l2_input));
        return 0;
}

static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
{
        struct saa7146_dev *dev = video_drvdata(file);
        struct budget_av *budget_av = dev->ext_priv;

        *i = budget_av->cur_input;

        dprintk(1, "VIDIOC_G_INPUT %d\n", *i);
        return 0;
}

static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
{
        struct saa7146_dev *dev = video_drvdata(file);
        struct budget_av *budget_av = dev->ext_priv;

        dprintk(1, "VIDIOC_S_INPUT %d\n", input);
        return saa7113_setinput(budget_av, input);
}

static struct saa7146_ext_vv vv_data;

static int budget_av_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
{
        struct budget_av *budget_av;
        u8 *mac;
        int err;

        dprintk(2, "dev: %p\n", dev);

        budget_av = kzalloc_obj(struct budget_av);
        if (!budget_av)
                return -ENOMEM;

        budget_av->has_saa7113 = 0;
        budget_av->budget.ci_present = 0;

        dev->ext_priv = budget_av;

        err = ttpci_budget_init(&budget_av->budget, dev, info, THIS_MODULE,
                                adapter_nr);
        if (err) {
                kfree(budget_av);
                return err;
        }

        /* knc1 initialization */
        saa7146_write(dev, DD1_STREAM_B, 0x04000000);
        saa7146_write(dev, DD1_INIT, 0x07000600);
        saa7146_write(dev, MC2, MASK_09 | MASK_25 | MASK_10 | MASK_26);

        if (saa7113_init(budget_av) == 0) {
                budget_av->has_saa7113 = 1;
                err = saa7146_vv_init(dev, &vv_data);
                if (err != 0) {
                        ttpci_budget_deinit(&budget_av->budget);
                        kfree(budget_av);
                        pr_err("cannot init vv subsystem\n");
                        return err;
                }
                vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
                vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
                vv_data.vid_ops.vidioc_s_input = vidioc_s_input;

                err = saa7146_register_device(&budget_av->vd, dev, "knc1", VFL_TYPE_VIDEO);
                if (err) {
                        saa7146_vv_release(dev);
                        ttpci_budget_deinit(&budget_av->budget);
                        kfree(budget_av);
                        pr_err("cannot register capture v4l2 device\n");
                        return err;
                }

                /* beware: this modifies dev->vv ... */
                saa7146_set_hps_source_and_sync(dev, SAA7146_HPS_SOURCE_PORT_A,
                                                SAA7146_HPS_SYNC_PORT_A);

                saa7113_setinput(budget_av, 0);
        }

        /* fixme: find some sane values here... */
        saa7146_write(dev, PCI_BT_V1, 0x1c00101f);

        mac = budget_av->budget.dvb_adapter.proposed_mac;
        if (i2c_readregs(&budget_av->budget.i2c_adap, 0xa0, 0x30, mac, 6)) {
                pr_err("KNC1-%d: Could not read MAC from KNC1 card\n",
                       budget_av->budget.dvb_adapter.num);
                eth_zero_addr(mac);
        } else {
                pr_info("KNC1-%d: MAC addr = %pM\n",
                        budget_av->budget.dvb_adapter.num, mac);
        }

        budget_av->budget.dvb_adapter.priv = budget_av;
        frontend_init(budget_av);
        ciintf_init(budget_av);

        ttpci_budget_init_hooks(&budget_av->budget);

        return 0;
}

static struct saa7146_standard standard[] = {
        {.name = "PAL", .id = V4L2_STD_PAL,
         .v_offset = 0x17, .v_field = 288,
         .h_offset = 0x14, .h_pixels = 680,
         .v_max_out = 576, .h_max_out = 768 },

        {.name = "NTSC", .id = V4L2_STD_NTSC,
         .v_offset = 0x16, .v_field = 240,
         .h_offset = 0x06, .h_pixels = 708,
         .v_max_out = 480, .h_max_out = 640, },
};

static struct saa7146_ext_vv vv_data = {
        .inputs = 2,
        .capabilities = 0,      // perhaps later: V4L2_CAP_VBI_CAPTURE, but that need tweaking with the saa7113
        .flags = 0,
        .stds = &standard[0],
        .num_stds = ARRAY_SIZE(standard),
};

static struct saa7146_extension budget_extension;

MAKE_BUDGET_INFO(knc1s, "KNC1 DVB-S", BUDGET_KNC1S);
MAKE_BUDGET_INFO(knc1s2, "KNC1 DVB-S2", BUDGET_KNC1S2);
MAKE_BUDGET_INFO(sates2, "Satelco EasyWatch DVB-S2", BUDGET_KNC1S2);
MAKE_BUDGET_INFO(knc1c, "KNC1 DVB-C", BUDGET_KNC1C);
MAKE_BUDGET_INFO(knc1t, "KNC1 DVB-T", BUDGET_KNC1T);
MAKE_BUDGET_INFO(kncxs, "KNC TV STAR DVB-S", BUDGET_TVSTAR);
MAKE_BUDGET_INFO(satewpls, "Satelco EasyWatch DVB-S light", BUDGET_TVSTAR);
MAKE_BUDGET_INFO(satewpls1, "Satelco EasyWatch DVB-S light", BUDGET_KNC1S);
MAKE_BUDGET_INFO(satewps, "Satelco EasyWatch DVB-S", BUDGET_KNC1S);
MAKE_BUDGET_INFO(satewplc, "Satelco EasyWatch DVB-C", BUDGET_KNC1CP);
MAKE_BUDGET_INFO(satewcmk3, "Satelco EasyWatch DVB-C MK3", BUDGET_KNC1C_MK3);
MAKE_BUDGET_INFO(satewt, "Satelco EasyWatch DVB-T", BUDGET_KNC1T);
MAKE_BUDGET_INFO(knc1sp, "KNC1 DVB-S Plus", BUDGET_KNC1SP);
MAKE_BUDGET_INFO(knc1spx4, "KNC1 DVB-S Plus X4", BUDGET_KNC1SP);
MAKE_BUDGET_INFO(knc1cp, "KNC1 DVB-C Plus", BUDGET_KNC1CP);
MAKE_BUDGET_INFO(knc1cmk3, "KNC1 DVB-C MK3", BUDGET_KNC1C_MK3);
MAKE_BUDGET_INFO(knc1ctda10024, "KNC1 DVB-C TDA10024", BUDGET_KNC1C_TDA10024);
MAKE_BUDGET_INFO(knc1cpmk3, "KNC1 DVB-C Plus MK3", BUDGET_KNC1CP_MK3);
MAKE_BUDGET_INFO(knc1tp, "KNC1 DVB-T Plus", BUDGET_KNC1TP);
MAKE_BUDGET_INFO(cin1200s, "TerraTec Cinergy 1200 DVB-S", BUDGET_CIN1200S);
MAKE_BUDGET_INFO(cin1200sn, "TerraTec Cinergy 1200 DVB-S", BUDGET_CIN1200S);
MAKE_BUDGET_INFO(cin1200c, "Terratec Cinergy 1200 DVB-C", BUDGET_CIN1200C);
MAKE_BUDGET_INFO(cin1200cmk3, "Terratec Cinergy 1200 DVB-C MK3", BUDGET_CIN1200C_MK3);
MAKE_BUDGET_INFO(cin1200t, "Terratec Cinergy 1200 DVB-T", BUDGET_CIN1200T);

static const struct pci_device_id pci_tbl[] = {
        MAKE_EXTENSION_PCI(knc1s, 0x1131, 0x4f56),
        MAKE_EXTENSION_PCI(knc1s, 0x1131, 0x0010),
        MAKE_EXTENSION_PCI(knc1s, 0x1894, 0x0010),
        MAKE_EXTENSION_PCI(knc1sp, 0x1131, 0x0011),
        MAKE_EXTENSION_PCI(knc1sp, 0x1894, 0x0011),
        MAKE_EXTENSION_PCI(kncxs, 0x1894, 0x0014),
        MAKE_EXTENSION_PCI(knc1spx4, 0x1894, 0x0015),
        MAKE_EXTENSION_PCI(kncxs, 0x1894, 0x0016),
        MAKE_EXTENSION_PCI(knc1s2, 0x1894, 0x0018),
        MAKE_EXTENSION_PCI(knc1s2, 0x1894, 0x0019),
        MAKE_EXTENSION_PCI(sates2, 0x1894, 0x001d),
        MAKE_EXTENSION_PCI(satewpls, 0x1894, 0x001e),
        MAKE_EXTENSION_PCI(satewpls1, 0x1894, 0x001a),
        MAKE_EXTENSION_PCI(satewps, 0x1894, 0x001b),
        MAKE_EXTENSION_PCI(satewplc, 0x1894, 0x002a),
        MAKE_EXTENSION_PCI(satewcmk3, 0x1894, 0x002c),
        MAKE_EXTENSION_PCI(satewt, 0x1894, 0x003a),
        MAKE_EXTENSION_PCI(knc1c, 0x1894, 0x0020),
        MAKE_EXTENSION_PCI(knc1cp, 0x1894, 0x0021),
        MAKE_EXTENSION_PCI(knc1cmk3, 0x1894, 0x0022),
        MAKE_EXTENSION_PCI(knc1ctda10024, 0x1894, 0x0028),
        MAKE_EXTENSION_PCI(knc1cpmk3, 0x1894, 0x0023),
        MAKE_EXTENSION_PCI(knc1t, 0x1894, 0x0030),
        MAKE_EXTENSION_PCI(knc1tp, 0x1894, 0x0031),
        MAKE_EXTENSION_PCI(cin1200s, 0x153b, 0x1154),
        MAKE_EXTENSION_PCI(cin1200sn, 0x153b, 0x1155),
        MAKE_EXTENSION_PCI(cin1200c, 0x153b, 0x1156),
        MAKE_EXTENSION_PCI(cin1200cmk3, 0x153b, 0x1176),
        MAKE_EXTENSION_PCI(cin1200t, 0x153b, 0x1157),
        {
         .vendor = 0,
        }
};

MODULE_DEVICE_TABLE(pci, pci_tbl);

static struct saa7146_extension budget_extension = {
        .name = "budget_av",
        .flags = SAA7146_USE_I2C_IRQ,

        .pci_tbl = pci_tbl,

        .module = THIS_MODULE,
        .attach = budget_av_attach,
        .detach = budget_av_detach,

        .irq_mask = MASK_10,
        .irq_func = budget_av_irq,
};

static int __init budget_av_init(void)
{
        return saa7146_register_extension(&budget_extension);
}

static void __exit budget_av_exit(void)
{
        saa7146_unregister_extension(&budget_extension);
}

module_init(budget_av_init);
module_exit(budget_av_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ralph Metzler, Marcus Metzler, Michael Hunold, others");
MODULE_DESCRIPTION("driver for the SAA7146 based so-called budget PCI DVB w/ analog input and CI-module (e.g. the KNC cards)");