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dvb-bt8xx.c

/*
 * Bt8xx based DVB adapter driver
 *
 * Copyright (C) 2002,2003 Florian Schirmer <jolt@tuxbox.org>
 *
 * 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/bitops.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/i2c.h>

#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb-bt8xx.h"
#include "bt878.h"

static int debug;

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

#define dprintk( args... ) \
      do \
            if (debug) printk(KERN_DEBUG args); \
      while (0)

#define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */

static void dvb_bt8xx_task(unsigned long data)
{
      struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *)data;

      //printk("%d ", card->bt->finished_block);

      while (card->bt->last_block != card->bt->finished_block) {
            (card->bt->TS_Size ? dvb_dmx_swfilter_204 : dvb_dmx_swfilter)
                  (&card->demux,
                   &card->bt->buf_cpu[card->bt->last_block *
                                  card->bt->block_bytes],
                   card->bt->block_bytes);
            card->bt->last_block = (card->bt->last_block + 1) %
                              card->bt->block_count;
      }
}

static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
      struct dvb_demux*dvbdmx = dvbdmxfeed->demux;
      struct dvb_bt8xx_card *card = dvbdmx->priv;
      int rc;

      dprintk("dvb_bt8xx: start_feed\n");

      if (!dvbdmx->dmx.frontend)
            return -EINVAL;

      mutex_lock(&card->lock);
      card->nfeeds++;
      rc = card->nfeeds;
      if (card->nfeeds == 1)
            bt878_start(card->bt, card->gpio_mode,
                      card->op_sync_orin, card->irq_err_ignore);
      mutex_unlock(&card->lock);
      return rc;
}

static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
      struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
      struct dvb_bt8xx_card *card = dvbdmx->priv;

      dprintk("dvb_bt8xx: stop_feed\n");

      if (!dvbdmx->dmx.frontend)
            return -EINVAL;

      mutex_lock(&card->lock);
      card->nfeeds--;
      if (card->nfeeds == 0)
            bt878_stop(card->bt);
      mutex_unlock(&card->lock);

      return 0;
}

static int is_pci_slot_eq(struct pci_dev* adev, struct pci_dev* bdev)
{
      if ((adev->subsystem_vendor == bdev->subsystem_vendor) &&
            (adev->subsystem_device == bdev->subsystem_device) &&
            (adev->bus->number == bdev->bus->number) &&
            (PCI_SLOT(adev->devfn) == PCI_SLOT(bdev->devfn)))
            return 1;
      return 0;
}

static struct bt878 __devinit *dvb_bt8xx_878_match(unsigned int bttv_nr, struct pci_dev* bttv_pci_dev)
{
      unsigned int card_nr;

      /* Hmm, n squared. Hope n is small */
      for (card_nr = 0; card_nr < bt878_num; card_nr++)
            if (is_pci_slot_eq(bt878[card_nr].dev, bttv_pci_dev))
                  return &bt878[card_nr];
      return NULL;
}

static int thomson_dtt7579_demod_init(struct dvb_frontend* fe)
{
      static u8 mt352_clock_config [] = { 0x89, 0x38, 0x38 };
      static u8 mt352_reset [] = { 0x50, 0x80 };
      static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
      static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0x20 };
      static u8 mt352_gpp_ctl_cfg [] = { 0x8C, 0x33 };
      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_gpp_ctl_cfg, sizeof(mt352_gpp_ctl_cfg));
      mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));

      return 0;
}

static int thomson_dtt7579_tuner_calc_regs(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf, int buf_len)
{
      u32 div;
      unsigned char bs = 0;
      unsigned char cp = 0;

      if (buf_len < 5)
            return -EINVAL;

      div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

      if (params->frequency < 542000000)
            cp = 0xb4;
      else if (params->frequency < 771000000)
            cp = 0xbc;
      else
            cp = 0xf4;

      if (params->frequency == 0)
            bs = 0x03;
      else if (params->frequency < 443250000)
            bs = 0x02;
      else
            bs = 0x08;

      pllbuf[0] = 0x60;
      pllbuf[1] = div >> 8;
      pllbuf[2] = div & 0xff;
      pllbuf[3] = cp;
      pllbuf[4] = bs;

      return 5;
}

static struct mt352_config thomson_dtt7579_config = {
      .demod_address = 0x0f,
      .demod_init = thomson_dtt7579_demod_init,
};

static struct zl10353_config thomson_dtt7579_zl10353_config = {
      .demod_address = 0x0f,
};

static int cx24108_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
      u32 freq = params->frequency;

      int i, a, n, pump;
      u32 band, pll;

      u32 osci[]={950000,1019000,1075000,1178000,1296000,1432000,
            1576000,1718000,1856000,2036000,2150000};
      u32 bandsel[]={0,0x00020000,0x00040000,0x00100800,0x00101000,
            0x00102000,0x00104000,0x00108000,0x00110000,
            0x00120000,0x00140000};

      #define XTAL 1011100 /* Hz, really 1.0111 MHz and a /10 prescaler */
      printk("cx24108 debug: entering SetTunerFreq, freq=%d\n",freq);

      /* This is really the bit driving the tuner chip cx24108 */

      if (freq<950000)
            freq = 950000; /* kHz */
      else if (freq>2150000)
            freq = 2150000; /* satellite IF is 950..2150MHz */

      /* decide which VCO to use for the input frequency */
      for(i = 1; (i < ARRAY_SIZE(osci)) && (osci[i] < freq); i++);
      printk("cx24108 debug: select vco #%d (f=%d)\n",i,freq);
      band=bandsel[i];
      /* the gain values must be set by SetSymbolrate */
      /* compute the pll divider needed, from Conexant data sheet,
         resolved for (n*32+a), remember f(vco) is f(receive) *2 or *4,
         depending on the divider bit. It is set to /4 on the 2 lowest
         bands  */
      n=((i<=2?2:1)*freq*10L)/(XTAL/100);
      a=n%32; n/=32; if(a==0) n--;
      pump=(freq<(osci[i-1]+osci[i])/2);
      pll=0xf8000000|
          ((pump?1:2)<<(14+11))|
          ((n&0x1ff)<<(5+11))|
          ((a&0x1f)<<11);
      /* everything is shifted left 11 bits to left-align the bits in the
         32bit word. Output to the tuner goes MSB-aligned, after all */
      printk("cx24108 debug: pump=%d, n=%d, a=%d\n",pump,n,a);
      cx24110_pll_write(fe,band);
      /* set vga and vca to their widest-band settings, as a precaution.
         SetSymbolrate might not be called to set this up */
      cx24110_pll_write(fe,0x500c0000);
      cx24110_pll_write(fe,0x83f1f800);
      cx24110_pll_write(fe,pll);
      //writereg(client,0x56,0x7f);

      return 0;
}

static int pinnsat_tuner_init(struct dvb_frontend* fe)
{
      struct dvb_bt8xx_card *card = fe->dvb->priv;

      bttv_gpio_enable(card->bttv_nr, 1, 1);  /* output */
      bttv_write_gpio(card->bttv_nr, 1, 1);   /* relay on */

      return 0;
}

static int pinnsat_tuner_sleep(struct dvb_frontend* fe)
{
      struct dvb_bt8xx_card *card = fe->dvb->priv;

      bttv_write_gpio(card->bttv_nr, 1, 0);   /* relay off */

      return 0;
}

static struct cx24110_config pctvsat_config = {
      .demod_address = 0x55,
};

static int microtune_mt7202dtf_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
      struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
      u8 cfg, cpump, band_select;
      u8 data[4];
      u32 div;
      struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = data, .len = sizeof(data) };

      div = (36000000 + params->frequency + 83333) / 166666;
      cfg = 0x88;

      if (params->frequency < 175000000)
            cpump = 2;
      else if (params->frequency < 390000000)
            cpump = 1;
      else if (params->frequency < 470000000)
            cpump = 2;
      else if (params->frequency < 750000000)
            cpump = 2;
      else
            cpump = 3;

      if (params->frequency < 175000000)
            band_select = 0x0e;
      else if (params->frequency < 470000000)
            band_select = 0x05;
      else
            band_select = 0x03;

      data[0] = (div >> 8) & 0x7f;
      data[1] = div & 0xff;
      data[2] = ((div >> 10) & 0x60) | cfg;
      data[3] = (cpump << 6) | band_select;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      i2c_transfer(card->i2c_adapter, &msg, 1);
      return (div * 166666 - 36000000);
}

static int microtune_mt7202dtf_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
{
      struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;

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

static struct sp887x_config microtune_mt7202dtf_config = {
      .demod_address = 0x70,
      .request_firmware = microtune_mt7202dtf_request_firmware,
};

static int advbt771_samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
{
      static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
      static u8 mt352_reset [] = { 0x50, 0x80 };
      static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
      static u8 mt352_agc_cfg [] = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
                               0x00, 0xFF, 0x00, 0x40, 0x40 };
      static u8 mt352_av771_extra[] = { 0xB5, 0x7A };
      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));
      udelay(2000);
      mt352_write(fe, mt352_av771_extra,sizeof(mt352_av771_extra));
      mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));

      return 0;
}

static int advbt771_samsung_tdtc9251dh0_tuner_calc_regs(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf, int buf_len)
{
      u32 div;
      unsigned char bs = 0;
      unsigned char cp = 0;

      if (buf_len < 5) return -EINVAL;

      div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

      if (params->frequency < 150000000)
            cp = 0xB4;
      else if (params->frequency < 173000000)
            cp = 0xBC;
      else if (params->frequency < 250000000)
            cp = 0xB4;
      else if (params->frequency < 400000000)
            cp = 0xBC;
      else if (params->frequency < 420000000)
            cp = 0xF4;
      else if (params->frequency < 470000000)
            cp = 0xFC;
      else if (params->frequency < 600000000)
            cp = 0xBC;
      else if (params->frequency < 730000000)
            cp = 0xF4;
      else
            cp = 0xFC;

      if (params->frequency < 150000000)
            bs = 0x01;
      else if (params->frequency < 173000000)
            bs = 0x01;
      else if (params->frequency < 250000000)
            bs = 0x02;
      else if (params->frequency < 400000000)
            bs = 0x02;
      else if (params->frequency < 420000000)
            bs = 0x02;
      else if (params->frequency < 470000000)
            bs = 0x02;
      else if (params->frequency < 600000000)
            bs = 0x08;
      else if (params->frequency < 730000000)
            bs = 0x08;
      else
            bs = 0x08;

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

      return 5;
}

static struct mt352_config advbt771_samsung_tdtc9251dh0_config = {
      .demod_address = 0x0f,
      .demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
};

static struct dst_config dst_config = {
      .demod_address = 0x55,
};

static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
{
      struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;

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

static void or51211_setmode(struct dvb_frontend * fe, int mode)
{
      struct dvb_bt8xx_card *bt = fe->dvb->priv;
      bttv_write_gpio(bt->bttv_nr, 0x0002, mode);   /* Reset */
      msleep(20);
}

static void or51211_reset(struct dvb_frontend * fe)
{
      struct dvb_bt8xx_card *bt = fe->dvb->priv;

      /* RESET DEVICE
       * reset is controled by GPIO-0
       * when set to 0 causes reset and when to 1 for normal op
       * must remain reset for 128 clock cycles on a 50Mhz clock
       * also PRM1 PRM2 & PRM4 are controled by GPIO-1,GPIO-2 & GPIO-4
       * We assume that the reset has be held low long enough or we
       * have been reset by a power on.  When the driver is unloaded
       * reset set to 0 so if reloaded we have been reset.
       */
      /* reset & PRM1,2&4 are outputs */
      int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
      if (ret != 0)
            printk(KERN_WARNING "or51211: Init Error - Can't Reset DVR (%i)\n", ret);
      bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000);   /* Reset */
      msleep(20);
      /* Now set for normal operation */
      bttv_write_gpio(bt->bttv_nr, 0x0001F, 0x0001);
      /* wait for operation to begin */
      msleep(500);
}

static void or51211_sleep(struct dvb_frontend * fe)
{
      struct dvb_bt8xx_card *bt = fe->dvb->priv;
      bttv_write_gpio(bt->bttv_nr, 0x0001, 0x0000);
}

static struct or51211_config or51211_config = {
      .demod_address = 0x15,
      .request_firmware = or51211_request_firmware,
      .setmode = or51211_setmode,
      .reset = or51211_reset,
      .sleep = or51211_sleep,
};

static int vp3021_alps_tded4_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
      struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
      u8 buf[4];
      u32 div;
      struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };

      div = (params->frequency + 36166667) / 166667;

      buf[0] = (div >> 8) & 0x7F;
      buf[1] = div & 0xFF;
      buf[2] = 0x85;
      if ((params->frequency >= 47000000) && (params->frequency < 153000000))
            buf[3] = 0x01;
      else if ((params->frequency >= 153000000) && (params->frequency < 430000000))
            buf[3] = 0x02;
      else if ((params->frequency >= 430000000) && (params->frequency < 824000000))
            buf[3] = 0x0C;
      else if ((params->frequency >= 824000000) && (params->frequency < 863000000))
            buf[3] = 0x8C;
      else
            return -EINVAL;

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      i2c_transfer(card->i2c_adapter, &msg, 1);
      return 0;
}

static struct nxt6000_config vp3021_alps_tded4_config = {
      .demod_address = 0x0a,
      .clock_inversion = 1,
};

static int digitv_alps_tded4_demod_init(struct dvb_frontend* fe)
{
      static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
      static u8 mt352_reset [] = { 0x50, 0x80 };
      static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
      static u8 mt352_agc_cfg [] = { 0x67, 0x20, 0xa0 };
      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 digitv_alps_tded4_tuner_calc_regs(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf, int buf_len)
{
      u32 div;
      struct dvb_ofdm_parameters *op = &params->u.ofdm;

      if (buf_len < 5)
            return -EINVAL;

      div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;

      pllbuf[0] = 0x61;
      pllbuf[1] = (div >> 8) & 0x7F;
      pllbuf[2] = div & 0xFF;
      pllbuf[3] = 0x85;

      dprintk("frequency %u, div %u\n", params->frequency, div);

      if (params->frequency < 470000000)
            pllbuf[4] = 0x02;
      else if (params->frequency > 823000000)
            pllbuf[4] = 0x88;
      else
            pllbuf[4] = 0x08;

      if (op->bandwidth == 8)
            pllbuf[4] |= 0x04;

      return 5;
}

static void digitv_alps_tded4_reset(struct dvb_bt8xx_card *bt)
{
      /*
       * Reset the frontend, must be called before trying
       * to initialise the MT352 or mt352_attach
       * will fail. Same goes for the nxt6000 frontend.
       *
       */

      int ret = bttv_gpio_enable(bt->bttv_nr, 0x08, 0x08);
      if (ret != 0)
            printk(KERN_WARNING "digitv_alps_tded4: Init Error - Can't Reset DVR (%i)\n", ret);

      /* Pulse the reset line */
      bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
      bttv_write_gpio(bt->bttv_nr, 0x08, 0x00); /* Low  */
      msleep(100);

      bttv_write_gpio(bt->bttv_nr, 0x08, 0x08); /* High */
}

static struct mt352_config digitv_alps_tded4_config = {
      .demod_address = 0x0a,
      .demod_init = digitv_alps_tded4_demod_init,
};

static struct lgdt330x_config tdvs_tua6034_config = {
      .demod_address    = 0x0e,
      .demod_chip       = LGDT3303,
      .serial_mpeg      = 0x40, /* TPSERIAL for 3303 in TOP_CONTROL */
};

static void lgdt330x_reset(struct dvb_bt8xx_card *bt)
{
      /* Set pin 27 of the lgdt3303 chip high to reset the frontend */

      /* Pulse the reset line */
      bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
      bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000000); /* Low  */
      msleep(100);

      bttv_write_gpio(bt->bttv_nr, 0x00e00007, 0x00000001); /* High */
      msleep(100);
}

static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
{
      struct dst_state* state = NULL;

      switch(type) {
      case BTTV_BOARD_DVICO_DVBT_LITE:
            card->fe = dvb_attach(mt352_attach, &thomson_dtt7579_config, card->i2c_adapter);

            if (card->fe == NULL)
                  card->fe = dvb_attach(zl10353_attach, &thomson_dtt7579_zl10353_config,
                                      card->i2c_adapter);

            if (card->fe != NULL) {
                  card->fe->ops.tuner_ops.calc_regs = thomson_dtt7579_tuner_calc_regs;
                  card->fe->ops.info.frequency_min = 174000000;
                  card->fe->ops.info.frequency_max = 862000000;
            }
            break;

      case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
            lgdt330x_reset(card);
            card->fe = dvb_attach(lgdt330x_attach, &tdvs_tua6034_config, card->i2c_adapter);
            if (card->fe != NULL) {
                  dvb_attach(dvb_pll_attach, card->fe, 0x61,
                           card->i2c_adapter, DVB_PLL_LG_TDVS_H06XF);
                  dprintk ("dvb_bt8xx: lgdt330x detected\n");
            }
            break;

      case BTTV_BOARD_NEBULA_DIGITV:
            /*
             * It is possible to determine the correct frontend using the I2C bus (see the Nebula SDK);
             * this would be a cleaner solution than trying each frontend in turn.
             */

            /* Old Nebula (marked (c)2003 on high profile pci card) has nxt6000 demod */
            digitv_alps_tded4_reset(card);
            card->fe = dvb_attach(nxt6000_attach, &vp3021_alps_tded4_config, card->i2c_adapter);
            if (card->fe != NULL) {
                  card->fe->ops.tuner_ops.set_params = vp3021_alps_tded4_tuner_set_params;
                  dprintk ("dvb_bt8xx: an nxt6000 was detected on your digitv card\n");
                  break;
            }

            /* New Nebula (marked (c)2005 on low profile pci card) has mt352 demod */
            digitv_alps_tded4_reset(card);
            card->fe = dvb_attach(mt352_attach, &digitv_alps_tded4_config, card->i2c_adapter);

            if (card->fe != NULL) {
                  card->fe->ops.tuner_ops.calc_regs = digitv_alps_tded4_tuner_calc_regs;
                  dprintk ("dvb_bt8xx: an mt352 was detected on your digitv card\n");
            }
            break;

      case BTTV_BOARD_AVDVBT_761:
            card->fe = dvb_attach(sp887x_attach, &microtune_mt7202dtf_config, card->i2c_adapter);
            if (card->fe) {
                  card->fe->ops.tuner_ops.set_params = microtune_mt7202dtf_tuner_set_params;
            }
            break;

      case BTTV_BOARD_AVDVBT_771:
            card->fe = dvb_attach(mt352_attach, &advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
            if (card->fe != NULL) {
                  card->fe->ops.tuner_ops.calc_regs = advbt771_samsung_tdtc9251dh0_tuner_calc_regs;
                  card->fe->ops.info.frequency_min = 174000000;
                  card->fe->ops.info.frequency_max = 862000000;
            }
            break;

      case BTTV_BOARD_TWINHAN_DST:
            /*    DST is not a frontend driver !!!          */
            state = kmalloc(sizeof (struct dst_state), GFP_KERNEL);
            if (!state) {
                  printk("dvb_bt8xx: No memory\n");
                  break;
            }
            /*    Setup the Card                            */
            state->config = &dst_config;
            state->i2c = card->i2c_adapter;
            state->bt = card->bt;
            state->dst_ca = NULL;
            /*    DST is not a frontend, attaching the ASIC */
            if (dvb_attach(dst_attach, state, &card->dvb_adapter) == NULL) {
                  printk("%s: Could not find a Twinhan DST.\n", __FUNCTION__);
                  break;
            }
            /*    Attach other DST peripherals if any       */
            /*    Conditional Access device                 */
            card->fe = &state->frontend;
            if (state->dst_hw_cap & DST_TYPE_HAS_CA)
                  dvb_attach(dst_ca_attach, state, &card->dvb_adapter);
            break;

      case BTTV_BOARD_PINNACLESAT:
            card->fe = dvb_attach(cx24110_attach, &pctvsat_config, card->i2c_adapter);
            if (card->fe) {
                  card->fe->ops.tuner_ops.init = pinnsat_tuner_init;
                  card->fe->ops.tuner_ops.sleep = pinnsat_tuner_sleep;
                  card->fe->ops.tuner_ops.set_params = cx24108_tuner_set_params;
            }
            break;

      case BTTV_BOARD_PC_HDTV:
            card->fe = dvb_attach(or51211_attach, &or51211_config, card->i2c_adapter);
            if (card->fe != NULL)
                  dvb_attach(dvb_pll_attach, card->fe, 0x61,
                           card->i2c_adapter, DVB_PLL_FCV1236D);
            break;
      }

      if (card->fe == NULL)
            printk("dvb-bt8xx: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
                   card->bt->dev->vendor,
                   card->bt->dev->device,
                   card->bt->dev->subsystem_vendor,
                   card->bt->dev->subsystem_device);
      else
            if (dvb_register_frontend(&card->dvb_adapter, card->fe)) {
                  printk("dvb-bt8xx: Frontend registration failed!\n");
                  dvb_frontend_detach(card->fe);
                  card->fe = NULL;
            }
}

static int __devinit dvb_bt8xx_load_card(struct dvb_bt8xx_card *card, u32 type)
{
      int result;

      if ((result = dvb_register_adapter(&card->dvb_adapter, card->card_name, THIS_MODULE, &card->bt->dev->dev)) < 0) {
            printk("dvb_bt8xx: dvb_register_adapter failed (errno = %d)\n", result);
            return result;
      }
      card->dvb_adapter.priv = card;

      card->bt->adapter = card->i2c_adapter;

      memset(&card->demux, 0, sizeof(struct dvb_demux));

      card->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;

      card->demux.priv = card;
      card->demux.filternum = 256;
      card->demux.feednum = 256;
      card->demux.start_feed = dvb_bt8xx_start_feed;
      card->demux.stop_feed = dvb_bt8xx_stop_feed;
      card->demux.write_to_decoder = NULL;

      if ((result = dvb_dmx_init(&card->demux)) < 0) {
            printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);

            dvb_unregister_adapter(&card->dvb_adapter);
            return result;
      }

      card->dmxdev.filternum = 256;
      card->dmxdev.demux = &card->demux.dmx;
      card->dmxdev.capabilities = 0;

      if ((result = dvb_dmxdev_init(&card->dmxdev, &card->dvb_adapter)) < 0) {
            printk("dvb_bt8xx: dvb_dmxdev_init failed (errno = %d)\n", result);

            dvb_dmx_release(&card->demux);
            dvb_unregister_adapter(&card->dvb_adapter);
            return result;
      }

      card->fe_hw.source = DMX_FRONTEND_0;

      if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
            printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);

            dvb_dmxdev_release(&card->dmxdev);
            dvb_dmx_release(&card->demux);
            dvb_unregister_adapter(&card->dvb_adapter);
            return result;
      }

      card->fe_mem.source = DMX_MEMORY_FE;

      if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_mem)) < 0) {
            printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);

            card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
            dvb_dmxdev_release(&card->dmxdev);
            dvb_dmx_release(&card->demux);
            dvb_unregister_adapter(&card->dvb_adapter);
            return result;
      }

      if ((result = card->demux.dmx.connect_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
            printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);

            card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
            card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
            dvb_dmxdev_release(&card->dmxdev);
            dvb_dmx_release(&card->demux);
            dvb_unregister_adapter(&card->dvb_adapter);
            return result;
      }

      dvb_net_init(&card->dvb_adapter, &card->dvbnet, &card->demux.dmx);

      tasklet_init(&card->bt->tasklet, dvb_bt8xx_task, (unsigned long) card);

      frontend_init(card, type);

      return 0;
}

static int __devinit dvb_bt8xx_probe(struct bttv_sub_device *sub)
{
      struct dvb_bt8xx_card *card;
      struct pci_dev* bttv_pci_dev;
      int ret;

      if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
            return -ENOMEM;

      mutex_init(&card->lock);
      card->bttv_nr = sub->core->nr;
      strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));
      card->i2c_adapter = &sub->core->i2c_adap;

      switch(sub->core->type) {
      case BTTV_BOARD_PINNACLESAT:
            card->gpio_mode = 0x0400c060;
            /* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
                        BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            break;

      case BTTV_BOARD_DVICO_DVBT_LITE:
            card->gpio_mode = 0x0400C060;
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            /* 26, 15, 14, 6, 5
             * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
             * DA_APP(parallel) */
            break;

      case BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE:
            card->gpio_mode = 0x0400c060;
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            break;

      case BTTV_BOARD_NEBULA_DIGITV:
      case BTTV_BOARD_AVDVBT_761:
            card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            /* A_PWRDN DA_SBR DA_APP (high speed serial) */
            break;

      case BTTV_BOARD_AVDVBT_771: //case 0x07711461:
            card->gpio_mode = 0x0400402B;
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            /* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
            break;

      case BTTV_BOARD_TWINHAN_DST:
            card->gpio_mode = 0x2204f2c;
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
                               BT878_APPERR | BT878_AFBUS;
            /* 25,21,14,11,10,9,8,3,2 then
             * 0x33 = 5,4,1,0
             * A_SEL=SML, DA_MLB, DA_SBR,
             * DA_SDR=f, fifo trigger = 32 DWORDS
             * IOM = 0 == audio A/D
             * DPM = 0 == digital audio mode
             * == async data parallel port
             * then 0x33 (13 is set by start_capture)
             * DA_APP = async data parallel port,
             * ACAP_EN = 1,
             * RISC+FIFO ENABLE */
            break;

      case BTTV_BOARD_PC_HDTV:
            card->gpio_mode = 0x0100EC7B;
            card->op_sync_orin = BT878_RISC_SYNC_MASK;
            card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
            break;

      default:
            printk(KERN_WARNING "dvb_bt8xx: Unknown bttv card type: %d.\n",
                        sub->core->type);
            kfree(card);
            return -ENODEV;
      }

      dprintk("dvb_bt8xx: identified card%d as %s\n", card->bttv_nr, card->card_name);

      if (!(bttv_pci_dev = bttv_get_pcidev(card->bttv_nr))) {
            printk("dvb_bt8xx: no pci device for card %d\n", card->bttv_nr);
            kfree(card);
            return -EFAULT;
      }

      if (!(card->bt = dvb_bt8xx_878_match(card->bttv_nr, bttv_pci_dev))) {
            printk("dvb_bt8xx: unable to determine DMA core of card %d,\n",
                   card->bttv_nr);
            printk("dvb_bt8xx: if you have the ALSA bt87x audio driver "
                   "installed, try removing it.\n");

            kfree(card);
            return -EFAULT;
      }

      mutex_init(&card->bt->gpio_lock);
      card->bt->bttv_nr = sub->core->nr;

      if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
            kfree(card);
            return ret;
      }

      dev_set_drvdata(&sub->dev, card);
      return 0;
}

static void dvb_bt8xx_remove(struct bttv_sub_device *sub)
{
      struct dvb_bt8xx_card *card = dev_get_drvdata(&sub->dev);

      dprintk("dvb_bt8xx: unloading card%d\n", card->bttv_nr);

      bt878_stop(card->bt);
      tasklet_kill(&card->bt->tasklet);
      dvb_net_release(&card->dvbnet);
      card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
      card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
      dvb_dmxdev_release(&card->dmxdev);
      dvb_dmx_release(&card->demux);
      if (card->fe) {
            dvb_unregister_frontend(card->fe);
            dvb_frontend_detach(card->fe);
      }
      dvb_unregister_adapter(&card->dvb_adapter);

      kfree(card);
}

static struct bttv_sub_driver driver = {
      .drv = {
            .name       = "dvb-bt8xx",
      },
      .probe            = dvb_bt8xx_probe,
      .remove           = dvb_bt8xx_remove,
      /* FIXME:
       * .shutdown      = dvb_bt8xx_shutdown,
       * .suspend = dvb_bt8xx_suspend,
       * .resume  = dvb_bt8xx_resume,
       */
};

static int __init dvb_bt8xx_init(void)
{
      return bttv_sub_register(&driver, "dvb");
}

static void __exit dvb_bt8xx_exit(void)
{
      bttv_sub_unregister(&driver);
}

module_init(dvb_bt8xx_init);
module_exit(dvb_bt8xx_exit);

MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
MODULE_LICENSE("GPL");

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