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flexcop-fe-tuner.c

/*
 * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
 *
 * flexcop-fe-tuner.c - methods for attaching a frontend and controlling DiSEqC.
 *
 * see flexcop.c for copyright information.
 */
#include "flexcop.h"

#include "stv0299.h"
#include "mt352.h"
#include "nxt200x.h"
#include "bcm3510.h"
#include "stv0297.h"
#include "mt312.h"
#include "lgdt330x.h"
#include "dvb-pll.h"

/* lnb control */

static int flexcop_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
{
      struct flexcop_device *fc = fe->dvb->priv;
      flexcop_ibi_value v;
      deb_tuner("polarity/voltage = %u\n", voltage);

      v = fc->read_ibi_reg(fc, misc_204);
      switch (voltage) {
            case SEC_VOLTAGE_OFF:
                  v.misc_204.ACPI1_sig = 1;
                  break;
            case SEC_VOLTAGE_13:
                  v.misc_204.ACPI1_sig = 0;
                  v.misc_204.LNB_L_H_sig = 0;
                  break;
            case SEC_VOLTAGE_18:
                  v.misc_204.ACPI1_sig = 0;
                  v.misc_204.LNB_L_H_sig = 1;
                  break;
            default:
                  err("unknown SEC_VOLTAGE value");
                  return -EINVAL;
      }
      return fc->write_ibi_reg(fc, misc_204, v);
}

static int flexcop_sleep(struct dvb_frontend* fe)
{
      struct flexcop_device *fc = fe->dvb->priv;
/*    flexcop_ibi_value v = fc->read_ibi_reg(fc,misc_204); */

      if (fc->fe_sleep)
            return fc->fe_sleep(fe);

/*    v.misc_204.ACPI3_sig = 1;
      fc->write_ibi_reg(fc,misc_204,v);*/

      return 0;
}

static int flexcop_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
{
      /* u16 wz_half_period_for_45_mhz[] = { 0x01ff, 0x0154, 0x00ff, 0x00cc }; */
      struct flexcop_device *fc = fe->dvb->priv;
      flexcop_ibi_value v;
      u16 ax;
      v.raw = 0;

      deb_tuner("tone = %u\n",tone);

      switch (tone) {
            case SEC_TONE_ON:
                  ax = 0x01ff;
                  break;
            case SEC_TONE_OFF:
                  ax = 0;
                  break;
            default:
                  err("unknown SEC_TONE value");
                  return -EINVAL;
      }

      v.lnb_switch_freq_200.LNB_CTLPrescaler_sig = 1; /* divide by 2 */

      v.lnb_switch_freq_200.LNB_CTLHighCount_sig = ax;
      v.lnb_switch_freq_200.LNB_CTLLowCount_sig  = ax == 0 ? 0x1ff : ax;

      return fc->write_ibi_reg(fc,lnb_switch_freq_200,v);
}

static void flexcop_diseqc_send_bit(struct dvb_frontend* fe, int data)
{
      flexcop_set_tone(fe, SEC_TONE_ON);
      udelay(data ? 500 : 1000);
      flexcop_set_tone(fe, SEC_TONE_OFF);
      udelay(data ? 1000 : 500);
}

static void flexcop_diseqc_send_byte(struct dvb_frontend* fe, int data)
{
      int i, par = 1, d;

      for (i = 7; i >= 0; i--) {
            d = (data >> i) & 1;
            par ^= d;
            flexcop_diseqc_send_bit(fe, d);
      }

      flexcop_diseqc_send_bit(fe, par);
}

static int flexcop_send_diseqc_msg(struct dvb_frontend* fe, int len, u8 *msg, unsigned long burst)
{
      int i;

      flexcop_set_tone(fe, SEC_TONE_OFF);
      mdelay(16);

      for (i = 0; i < len; i++)
            flexcop_diseqc_send_byte(fe,msg[i]);

      mdelay(16);

      if (burst != -1) {
            if (burst)
                  flexcop_diseqc_send_byte(fe, 0xff);
            else {
                  flexcop_set_tone(fe, SEC_TONE_ON);
                  udelay(12500);
                  flexcop_set_tone(fe, SEC_TONE_OFF);
            }
            msleep(20);
      }
      return 0;
}

static int flexcop_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
      return flexcop_send_diseqc_msg(fe, cmd->msg_len, cmd->msg, 0);
}

static int flexcop_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
{
      return flexcop_send_diseqc_msg(fe, 0, NULL, minicmd);
}

/* dvb-s stv0299 */
static int samsung_tbmu24112_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;
}

static int samsung_tbmu24112_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters *params)
{
      u8 buf[4];
      u32 div;
      struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
      struct flexcop_device *fc = fe->dvb->priv;

      div = params->frequency / 125;

      buf[0] = (div >> 8) & 0x7f;
      buf[1] = div & 0xff;
      buf[2] = 0x84;  /* 0xC4 */
      buf[3] = 0x08;

      if (params->frequency < 1500000) buf[3] |= 0x10;

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

static u8 samsung_tbmu24112_inittab[] = {
           0x01, 0x15,
           0x02, 0x30,
           0x03, 0x00,
           0x04, 0x7D,
           0x05, 0x35,
           0x06, 0x02,
           0x07, 0x00,
           0x08, 0xC3,
           0x0C, 0x00,
           0x0D, 0x81,
           0x0E, 0x23,
           0x0F, 0x12,
           0x10, 0x7E,
           0x11, 0x84,
           0x12, 0xB9,
           0x13, 0x88,
           0x14, 0x89,
           0x15, 0xC9,
           0x16, 0x00,
           0x17, 0x5C,
           0x18, 0x00,
           0x19, 0x00,
           0x1A, 0x00,
           0x1C, 0x00,
           0x1D, 0x00,
           0x1E, 0x00,
           0x1F, 0x3A,
           0x20, 0x2E,
           0x21, 0x80,
           0x22, 0xFF,
           0x23, 0xC1,
           0x28, 0x00,
           0x29, 0x1E,
           0x2A, 0x14,
           0x2B, 0x0F,
           0x2C, 0x09,
           0x2D, 0x05,
           0x31, 0x1F,
           0x32, 0x19,
           0x33, 0xFE,
           0x34, 0x93,
           0xff, 0xff,
};

static struct stv0299_config samsung_tbmu24112_config = {
      .demod_address = 0x68,
      .inittab = samsung_tbmu24112_inittab,
      .mclk = 88000000UL,
      .invert = 0,
      .skip_reinit = 0,
      .lock_output = STV0229_LOCKOUTPUT_LK,
      .volt13_op0_op1 = STV0299_VOLT13_OP1,
      .min_delay_ms = 100,
      .set_symbol_rate = samsung_tbmu24112_set_symbol_rate,
};

/* dvb-t mt352 */
static int samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
{
      static u8 mt352_clock_config [] = { 0x89, 0x18, 0x2d };
      static u8 mt352_reset [] = { 0x50, 0x80 };
      static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
      static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0xa1 };
      static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };

      mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
      udelay(2000);
      mt352_write(fe, mt352_reset, sizeof(mt352_reset));
      mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));

      mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
      mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));

      return 0;
}

static int samsung_tdtc9251dh0_calc_regs(struct dvb_frontend* fe, struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len)
{
      u32 div;
      unsigned char bs = 0;

      if (buf_len < 5)
            return -EINVAL;

      #define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
      div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

      if (params->frequency >= 48000000 && params->frequency <= 154000000) bs = 0x09;
      if (params->frequency >= 161000000 && params->frequency <= 439000000) bs = 0x0a;
      if (params->frequency >= 447000000 && params->frequency <= 863000000) bs = 0x08;

      pllbuf[0] = 0x61;
      pllbuf[1] = div >> 8;
      pllbuf[2] = div & 0xff;
      pllbuf[3] = 0xcc;
      pllbuf[4] = bs;

      return 5;
}

static struct mt352_config samsung_tdtc9251dh0_config = {
      .demod_address = 0x0f,
      .demod_init    = samsung_tdtc9251dh0_demod_init,
};

static int flexcop_fe_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
{
      struct flexcop_device *fc = fe->dvb->priv;
      return request_firmware(fw, name, fc->dev);
}

static struct lgdt330x_config air2pc_atsc_hd5000_config = {
      .demod_address       = 0x59,
      .demod_chip          = LGDT3303,
      .serial_mpeg         = 0x04,
      .clock_polarity_flip = 1,
};

static struct nxt200x_config samsung_tbmv_config = {
      .demod_address    = 0x0a,
};

static struct bcm3510_config air2pc_atsc_first_gen_config = {
      .demod_address    = 0x0f,
      .request_firmware = flexcop_fe_request_firmware,
};

static int skystar23_samsung_tbdu18132_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters *params)
{
      u8 buf[4];
      u32 div;
      struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
      struct flexcop_device *fc = fe->dvb->priv;

      div = (params->frequency + (125/2)) / 125;

      buf[0] = (div >> 8) & 0x7f;
      buf[1] = (div >> 0) & 0xff;
      buf[2] = 0x84 | ((div >> 10) & 0x60);
      buf[3] = 0x80;

      if (params->frequency < 1550000)
            buf[3] |= 0x02;

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

static struct mt312_config skystar23_samsung_tbdu18132_config = {

      .demod_address = 0x0e,
};

static int alps_tdee4_stv0297_tuner_set_params(struct dvb_frontend* fe,
                                     struct dvb_frontend_parameters *fep)
{
      struct flexcop_device *fc = fe->dvb->priv;
      u8 buf[4];
      u16 div;
      int ret;

/*  62.5 kHz * 10 */
#define REF_FREQ    625
#define FREQ_OFFSET 36125

      div = ((fep->frequency/1000 + FREQ_OFFSET ) * 10)  / REF_FREQ; // 4 MHz = 4000 KHz

      buf[0] = (u8)( div >> 8) & 0x7f;
      buf[1] = (u8)        div & 0xff;

/* F(osc) = N * Reference Freq. (62.5 kHz)
 * byte 2 :  0 N14 N13 N12 N11 N10 N9  N8
 * byte 3 : N7 N6  N5  N4  N3  N2  N1  N0
 * byte 4 : 1  *   *   AGD R3  R2  R1  R0
 * byte 5 : C1 *   RE  RTS BS4 BS3 BS2 BS1
 * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95 */
      buf[2] = 0x95;

// Range(MHz)  C1 *  RE RTS BS4 BS3 BS2 BS1  Byte 5
//  47 - 153   0  *  0   0   0   0   0   1   0x01
// 153 - 430   0  *  0   0   0   0   1   0   0x02
// 430 - 822   0  *  0   0   1   0   0   0   0x08
// 822 - 862   1  *  0   0   1   0   0   0   0x88

           if (fep->frequency <= 153000000) buf[3] = 0x01;
      else if (fep->frequency <= 430000000) buf[3] = 0x02;
      else if (fep->frequency <= 822000000) buf[3] = 0x08;
      else buf[3] = 0x88;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 0);
      deb_tuner("tuner buffer for %d Hz: %x %x %x %x\n",fep->frequency, buf[0],buf[1],buf[2],buf[3]);
      ret = fc->i2c_request(fc, FC_WRITE, FC_I2C_PORT_TUNER, 0x61, buf[0], &buf[1], 3);
      deb_tuner("tuner write returned: %d\n",ret);

      return 0;
}

static u8 alps_tdee4_stv0297_inittab[] = {
      0x80, 0x01,
      0x80, 0x00,
      0x81, 0x01,
      0x81, 0x00,
      0x00, 0x48,
      0x01, 0x58,
      0x03, 0x00,
      0x04, 0x00,
      0x07, 0x00,
      0x08, 0x00,
      0x30, 0xff,
      0x31, 0x9d,
      0x32, 0xff,
      0x33, 0x00,
      0x34, 0x29,
      0x35, 0x55,
      0x36, 0x80,
      0x37, 0x6e,
      0x38, 0x9c,
      0x40, 0x1a,
      0x41, 0xfe,
      0x42, 0x33,
      0x43, 0x00,
      0x44, 0xff,
      0x45, 0x00,
      0x46, 0x00,
      0x49, 0x04,
      0x4a, 0x51,
      0x4b, 0xf8,
      0x52, 0x30,
      0x53, 0x06,
      0x59, 0x06,
      0x5a, 0x5e,
      0x5b, 0x04,
      0x61, 0x49,
      0x62, 0x0a,
      0x70, 0xff,
      0x71, 0x04,
      0x72, 0x00,
      0x73, 0x00,
      0x74, 0x0c,
      0x80, 0x20,
      0x81, 0x00,
      0x82, 0x30,
      0x83, 0x00,
      0x84, 0x04,
      0x85, 0x22,
      0x86, 0x08,
      0x87, 0x1b,
      0x88, 0x00,
      0x89, 0x00,
      0x90, 0x00,
      0x91, 0x04,
      0xa0, 0x86,
      0xa1, 0x00,
      0xa2, 0x00,
      0xb0, 0x91,
      0xb1, 0x0b,
      0xc0, 0x5b,
      0xc1, 0x10,
      0xc2, 0x12,
      0xd0, 0x02,
      0xd1, 0x00,
      0xd2, 0x00,
      0xd3, 0x00,
      0xd4, 0x02,
      0xd5, 0x00,
      0xde, 0x00,
      0xdf, 0x01,
      0xff, 0xff,
};

static struct stv0297_config alps_tdee4_stv0297_config = {
      .demod_address = 0x1c,
      .inittab = alps_tdee4_stv0297_inittab,
//    .invert = 1,
//    .pll_set = alps_tdee4_stv0297_pll_set,
};

/* try to figure out the frontend, each card/box can have on of the following list */
int flexcop_frontend_init(struct flexcop_device *fc)
{
      struct dvb_frontend_ops *ops;

      /* try the sky v2.6 (stv0299/Samsung tbmu24112(sl1935)) */
      if ((fc->fe = dvb_attach(stv0299_attach, &samsung_tbmu24112_config, &fc->i2c_adap)) != NULL) {
            ops = &fc->fe->ops;

            ops->tuner_ops.set_params = samsung_tbmu24112_tuner_set_params;

            ops->set_voltage = flexcop_set_voltage;

            fc->fe_sleep             = ops->sleep;
            ops->sleep               = flexcop_sleep;

            fc->dev_type          = FC_SKY;
            info("found the stv0299 at i2c address: 0x%02x",samsung_tbmu24112_config.demod_address);
      } else
      /* try the air dvb-t (mt352/Samsung tdtc9251dh0(??)) */
      if ((fc->fe = dvb_attach(mt352_attach, &samsung_tdtc9251dh0_config, &fc->i2c_adap)) != NULL ) {
            fc->dev_type          = FC_AIR_DVB;
            fc->fe->ops.tuner_ops.calc_regs = samsung_tdtc9251dh0_calc_regs;
            info("found the mt352 at i2c address: 0x%02x",samsung_tdtc9251dh0_config.demod_address);
      } else
      /* try the air atsc 2nd generation (nxt2002) */
      if ((fc->fe = dvb_attach(nxt200x_attach, &samsung_tbmv_config, &fc->i2c_adap)) != NULL) {
            fc->dev_type          = FC_AIR_ATSC2;
            dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL, DVB_PLL_SAMSUNG_TBMV);
            info("found the nxt2002 at i2c address: 0x%02x",samsung_tbmv_config.demod_address);
      } else
      /* try the air atsc 3nd generation (lgdt3303) */
      if ((fc->fe = dvb_attach(lgdt330x_attach, &air2pc_atsc_hd5000_config, &fc->i2c_adap)) != NULL) {
            fc->dev_type          = FC_AIR_ATSC3;
            dvb_attach(dvb_pll_attach, fc->fe, 0x61, &fc->i2c_adap, DVB_PLL_LG_TDVS_H06XF);
            info("found the lgdt3303 at i2c address: 0x%02x",air2pc_atsc_hd5000_config.demod_address);
      } else
      /* try the air atsc 1nd generation (bcm3510)/panasonic ct10s */
      if ((fc->fe = dvb_attach(bcm3510_attach, &air2pc_atsc_first_gen_config, &fc->i2c_adap)) != NULL) {
            fc->dev_type          = FC_AIR_ATSC1;
            info("found the bcm3510 at i2c address: 0x%02x",air2pc_atsc_first_gen_config.demod_address);
      } else
      /* try the cable dvb (stv0297) */
      if ((fc->fe = dvb_attach(stv0297_attach, &alps_tdee4_stv0297_config, &fc->i2c_adap)) != NULL) {
            fc->dev_type                        = FC_CABLE;
            fc->fe->ops.tuner_ops.set_params = alps_tdee4_stv0297_tuner_set_params;
            info("found the stv0297 at i2c address: 0x%02x",alps_tdee4_stv0297_config.demod_address);
      } else
      /* try the sky v2.3 (vp310/Samsung tbdu18132(tsa5059)) */
      if ((fc->fe = dvb_attach(vp310_mt312_attach, &skystar23_samsung_tbdu18132_config, &fc->i2c_adap)) != NULL) {
            ops = &fc->fe->ops;

            ops->tuner_ops.set_params = skystar23_samsung_tbdu18132_tuner_set_params;

            ops->diseqc_send_master_cmd = flexcop_diseqc_send_master_cmd;
            ops->diseqc_send_burst      = flexcop_diseqc_send_burst;
            ops->set_tone               = flexcop_set_tone;
            ops->set_voltage            = flexcop_set_voltage;

            fc->fe_sleep                = ops->sleep;
            ops->sleep                  = flexcop_sleep;

            fc->dev_type                = FC_SKY_OLD;
            info("found the vp310 (aka mt312) at i2c address: 0x%02x",skystar23_samsung_tbdu18132_config.demod_address);
      }

      if (fc->fe == NULL) {
            err("no frontend driver found for this B2C2/FlexCop adapter");
            return -ENODEV;
      } else {
            if (dvb_register_frontend(&fc->dvb_adapter, fc->fe)) {
                  err("frontend registration failed!");
                  dvb_frontend_detach(fc->fe);
                  fc->fe = NULL;
                  return -EINVAL;
            }
      }
      fc->init_state |= FC_STATE_FE_INIT;
      return 0;
}

void flexcop_frontend_exit(struct flexcop_device *fc)
{
      if (fc->init_state & FC_STATE_FE_INIT) {
            dvb_unregister_frontend(fc->fe);
            dvb_frontend_detach(fc->fe);
      }

      fc->init_state &= ~FC_STATE_FE_INIT;
}

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