mantis_vp1033.c

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/*
    Mantis VP-1033 driver

    Copyright (C) Manu Abraham ([email protected])

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>

#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"

#include "stv0299.h"
#include "mantis_common.h"
#include "mantis_ioc.h"
#include "mantis_dvb.h"
#include "mantis_vp1033.h"
#include "mantis_reg.h"

u8 lgtdqcs001f_inittab[] = {
    0x01, 0x15,
    0x02, 0x30,
    0x03, 0x00,
    0x04, 0x2a,
    0x05, 0x85,
    0x06, 0x02,
    0x07, 0x00,
    0x08, 0x00,
    0x0c, 0x01,
    0x0d, 0x81,
    0x0e, 0x44,
    0x0f, 0x94,
    0x10, 0x3c,
    0x11, 0x84,
    0x12, 0xb9,
    0x13, 0xb5,
    0x14, 0x4f,
    0x15, 0xc9,
    0x16, 0x80,
    0x17, 0x36,
    0x18, 0xfb,
    0x19, 0xcf,
    0x1a, 0xbc,
    0x1c, 0x2b,
    0x1d, 0x27,
    0x1e, 0x00,
    0x1f, 0x0b,
    0x20, 0xa1,
    0x21, 0x60,
    0x22, 0x00,
    0x23, 0x00,
    0x28, 0x00,
    0x29, 0x28,
    0x2a, 0x14,
    0x2b, 0x0f,
    0x2c, 0x09,
    0x2d, 0x05,
    0x31, 0x1f,
    0x32, 0x19,
    0x33, 0xfc,
    0x34, 0x13,
    0xff, 0xff,
};

#define MANTIS_MODEL_NAME   "VP-1033"
#define MANTIS_DEV_TYPE     "DVB-S/DSS"

int lgtdqcs001f_tuner_set(struct dvb_frontend *fe)
{
    struct dtv_frontend_properties *p = &fe->dtv_property_cache;
    struct mantis_pci *mantis   = fe->dvb->priv;
    struct i2c_adapter *adapter = &mantis->adapter;

    u8 buf[4];
    u32 div;


    struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf)};

    div = p->frequency / 250;

    buf[0] = (div >> 8) & 0x7f;
    buf[1] =  div & 0xff;
    buf[2] =  0x83;
    buf[3] =  0xc0;

    if (p->frequency < 1531000)
        buf[3] |= 0x04;
    else
        buf[3] &= ~0x04;
    if (i2c_transfer(adapter, &msg, 1) < 0) {
        dprintk(MANTIS_ERROR, 1, "Write: I2C Transfer failed");
        return -EIO;
    }
    msleep_interruptible(100);

    return 0;
}

int lgtdqcs001f_set_symbol_rate(struct dvb_frontend *fe,
                u32 srate, u32 ratio)
{
    u8 aclk = 0;
    u8 bclk = 0;

    if (srate < 1500000) {
        aclk = 0xb7;
        bclk = 0x47;
    } else if (srate < 3000000) {
        aclk = 0xb7;
        bclk = 0x4b;
    } else if (srate < 7000000) {
        aclk = 0xb7;
        bclk = 0x4f;
    } else if (srate < 14000000) {
        aclk = 0xb7;
        bclk = 0x53;
    } else if (srate < 30000000) {
        aclk = 0xb6;
        bclk = 0x53;
    } else if (srate < 45000000) {
        aclk = 0xb4;
        bclk = 0x51;
    }
    stv0299_writereg(fe, 0x13, aclk);
    stv0299_writereg(fe, 0x14, bclk);

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

    return 0;
}

struct stv0299_config lgtdqcs001f_config = {
    .demod_address      = 0x68,
    .inittab        = lgtdqcs001f_inittab,
    .mclk           = 88000000UL,
    .invert         = 0,
    .skip_reinit        = 0,
    .volt13_op0_op1     = STV0299_VOLT13_OP0,
    .min_delay_ms       = 100,
    .set_symbol_rate    = lgtdqcs001f_set_symbol_rate,
};

static int vp1033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
{
    struct i2c_adapter *adapter = &mantis->adapter;

    int err = 0;

    err = mantis_frontend_power(mantis, POWER_ON);
    if (err == 0) {
        mantis_frontend_soft_reset(mantis);
        msleep(250);

        dprintk(MANTIS_ERROR, 1, "Probing for STV0299 (DVB-S)");
        fe = dvb_attach(stv0299_attach, &lgtdqcs001f_config, adapter);

        if (fe) {
            fe->ops.tuner_ops.set_params = lgtdqcs001f_tuner_set;
            dprintk(MANTIS_ERROR, 1, "found STV0299 DVB-S frontend @ 0x%02x",
                lgtdqcs001f_config.demod_address);

            dprintk(MANTIS_ERROR, 1, "Mantis DVB-S STV0299 frontend attach success");
        } else {
            return -1;
        }
    } else {
        dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
            adapter->name,
            err);

        return -EIO;
    }
    mantis->fe = fe;
    dprintk(MANTIS_ERROR, 1, "Done!");

    return 0;
}

struct mantis_hwconfig vp1033_config = {
    .model_name     = MANTIS_MODEL_NAME,
    .dev_type       = MANTIS_DEV_TYPE,
    .ts_size        = MANTIS_TS_204,

    .baud_rate      = MANTIS_BAUD_9600,
    .parity         = MANTIS_PARITY_NONE,
    .bytes          = 0,

    .frontend_init      = vp1033_frontend_init,
    .power          = GPIF_A12,
    .reset          = GPIF_A13,
};