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pluto2.c

/*
 * pluto2.c - Satelco Easywatch Mobile Terrestrial Receiver [DVB-T]
 *
 * Copyright (C) 2005 Andreas Oberritter <obi@linuxtv.org>
 *
 * based on pluto2.c 1.10 - http://instinct-wp8.no-ip.org/pluto/
 *    by Dany Salman <salmandany@yahoo.fr>
 *    Copyright (c) 2004 TDF
 *
 * 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/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>

#include "demux.h"
#include "dmxdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"
#include "dvbdev.h"
#include "tda1004x.h"

#define DRIVER_NAME           "pluto2"

#define REG_PIDn(n)           ((n) << 2)  /* PID n pattern registers */
#define REG_PCAR        0x0020            /* PC address register */
#define REG_TSCR        0x0024            /* TS ctrl & status */
#define REG_MISC        0x0028            /* miscellaneous */
#define REG_MMAC        0x002c            /* MSB MAC address */
#define REG_IMAC        0x0030            /* ISB MAC address */
#define REG_LMAC        0x0034            /* LSB MAC address */
#define REG_SPID        0x0038            /* SPI data */
#define REG_SLCS        0x003c            /* serial links ctrl/status */

#define PID0_NOFIL            (0x0001 << 16)
#define PIDn_ENP        (0x0001 << 15)
#define PID0_END        (0x0001 << 14)
#define PID0_AFIL       (0x0001 << 13)
#define PIDn_PID        (0x1fff <<  0)

#define TSCR_NBPACKETS        (0x00ff << 24)
#define TSCR_DEM        (0x0001 << 17)
#define TSCR_DE               (0x0001 << 16)
#define TSCR_RSTN       (0x0001 << 15)
#define TSCR_MSKO       (0x0001 << 14)
#define TSCR_MSKA       (0x0001 << 13)
#define TSCR_MSKL       (0x0001 << 12)
#define TSCR_OVR        (0x0001 << 11)
#define TSCR_AFUL       (0x0001 << 10)
#define TSCR_LOCK       (0x0001 <<  9)
#define TSCR_IACK       (0x0001 <<  8)
#define TSCR_ADEF       (0x007f <<  0)

#define MISC_DVR        (0x0fff <<  4)
#define MISC_ALED       (0x0001 <<  3)
#define MISC_FRST       (0x0001 <<  2)
#define MISC_LED1       (0x0001 <<  1)
#define MISC_LED0       (0x0001 <<  0)

#define SPID_SPIDR            (0x00ff <<  0)

#define SLCS_SCL        (0x0001 <<  7)
#define SLCS_SDA        (0x0001 <<  6)
#define SLCS_CSN        (0x0001 <<  2)
#define SLCS_OVR        (0x0001 <<  1)
#define SLCS_SWC        (0x0001 <<  0)

#define TS_DMA_PACKETS        (8)
#define TS_DMA_BYTES          (188 * TS_DMA_PACKETS)

#define I2C_ADDR_TDA10046     0x10
#define I2C_ADDR_TUA6034      0xc2
#define NHWFILTERS            8

struct pluto {
      /* pci */
      struct pci_dev *pdev;
      u8 __iomem *io_mem;

      /* dvb */
      struct dmx_frontend hw_frontend;
      struct dmx_frontend mem_frontend;
      struct dmxdev dmxdev;
      struct dvb_adapter dvb_adapter;
      struct dvb_demux demux;
      struct dvb_frontend *fe;
      struct dvb_net dvbnet;
      unsigned int full_ts_users;
      unsigned int users;

      /* i2c */
      struct i2c_algo_bit_data i2c_bit;
      struct i2c_adapter i2c_adap;
      unsigned int i2cbug;

      /* irq */
      unsigned int overflow;

      /* dma */
      dma_addr_t dma_addr;
      u8 dma_buf[TS_DMA_BYTES];
      u8 dummy[4096];
};

static inline struct pluto *feed_to_pluto(struct dvb_demux_feed *feed)
{
      return container_of(feed->demux, struct pluto, demux);
}

static inline struct pluto *frontend_to_pluto(struct dvb_frontend *fe)
{
      return container_of(fe->dvb, struct pluto, dvb_adapter);
}

static inline u32 pluto_readreg(struct pluto *pluto, u32 reg)
{
      return readl(&pluto->io_mem[reg]);
}

static inline void pluto_writereg(struct pluto *pluto, u32 reg, u32 val)
{
      writel(val, &pluto->io_mem[reg]);
}

static inline void pluto_rw(struct pluto *pluto, u32 reg, u32 mask, u32 bits)
{
      u32 val = readl(&pluto->io_mem[reg]);
      val &= ~mask;
      val |= bits;
      writel(val, &pluto->io_mem[reg]);
}

static void pluto_write_tscr(struct pluto *pluto, u32 val)
{
      /* set the number of packets */
      val &= ~TSCR_ADEF;
      val |= TS_DMA_PACKETS / 2;

      pluto_writereg(pluto, REG_TSCR, val);
}

static void pluto_setsda(void *data, int state)
{
      struct pluto *pluto = data;

      if (state)
            pluto_rw(pluto, REG_SLCS, SLCS_SDA, SLCS_SDA);
      else
            pluto_rw(pluto, REG_SLCS, SLCS_SDA, 0);
}

static void pluto_setscl(void *data, int state)
{
      struct pluto *pluto = data;

      if (state)
            pluto_rw(pluto, REG_SLCS, SLCS_SCL, SLCS_SCL);
      else
            pluto_rw(pluto, REG_SLCS, SLCS_SCL, 0);

      /* try to detect i2c_inb() to workaround hardware bug:
       * reset SDA to high after SCL has been set to low */
      if ((state) && (pluto->i2cbug == 0)) {
            pluto->i2cbug = 1;
      } else {
            if ((!state) && (pluto->i2cbug == 1))
                  pluto_setsda(pluto, 1);
            pluto->i2cbug = 0;
      }
}

static int pluto_getsda(void *data)
{
      struct pluto *pluto = data;

      return pluto_readreg(pluto, REG_SLCS) & SLCS_SDA;
}

static int pluto_getscl(void *data)
{
      struct pluto *pluto = data;

      return pluto_readreg(pluto, REG_SLCS) & SLCS_SCL;
}

static void pluto_reset_frontend(struct pluto *pluto, int reenable)
{
      u32 val = pluto_readreg(pluto, REG_MISC);

      if (val & MISC_FRST) {
            val &= ~MISC_FRST;
            pluto_writereg(pluto, REG_MISC, val);
      }
      if (reenable) {
            val |= MISC_FRST;
            pluto_writereg(pluto, REG_MISC, val);
      }
}

static void pluto_reset_ts(struct pluto *pluto, int reenable)
{
      u32 val = pluto_readreg(pluto, REG_TSCR);

      if (val & TSCR_RSTN) {
            val &= ~TSCR_RSTN;
            pluto_write_tscr(pluto, val);
      }
      if (reenable) {
            val |= TSCR_RSTN;
            pluto_write_tscr(pluto, val);
      }
}

static void pluto_set_dma_addr(struct pluto *pluto)
{
      pluto_writereg(pluto, REG_PCAR, cpu_to_le32(pluto->dma_addr));
}

static int __devinit pluto_dma_map(struct pluto *pluto)
{
      pluto->dma_addr = pci_map_single(pluto->pdev, pluto->dma_buf,
                  TS_DMA_BYTES, PCI_DMA_FROMDEVICE);

      return pci_dma_mapping_error(pluto->dma_addr);
}

static void pluto_dma_unmap(struct pluto *pluto)
{
      pci_unmap_single(pluto->pdev, pluto->dma_addr,
                  TS_DMA_BYTES, PCI_DMA_FROMDEVICE);
}

static int pluto_start_feed(struct dvb_demux_feed *f)
{
      struct pluto *pluto = feed_to_pluto(f);

      /* enable PID filtering */
      if (pluto->users++ == 0)
            pluto_rw(pluto, REG_PIDn(0), PID0_AFIL | PID0_NOFIL, 0);

      if ((f->pid < 0x2000) && (f->index < NHWFILTERS))
            pluto_rw(pluto, REG_PIDn(f->index), PIDn_ENP | PIDn_PID, PIDn_ENP | f->pid);
      else if (pluto->full_ts_users++ == 0)
            pluto_rw(pluto, REG_PIDn(0), PID0_NOFIL, PID0_NOFIL);

      return 0;
}

static int pluto_stop_feed(struct dvb_demux_feed *f)
{
      struct pluto *pluto = feed_to_pluto(f);

      /* disable PID filtering */
      if (--pluto->users == 0)
            pluto_rw(pluto, REG_PIDn(0), PID0_AFIL, PID0_AFIL);

      if ((f->pid < 0x2000) && (f->index < NHWFILTERS))
            pluto_rw(pluto, REG_PIDn(f->index), PIDn_ENP | PIDn_PID, 0x1fff);
      else if (--pluto->full_ts_users == 0)
            pluto_rw(pluto, REG_PIDn(0), PID0_NOFIL, 0);

      return 0;
}

static void pluto_dma_end(struct pluto *pluto, unsigned int nbpackets)
{
      /* synchronize the DMA transfer with the CPU
       * first so that we see updated contents. */
      pci_dma_sync_single_for_cpu(pluto->pdev, pluto->dma_addr,
                  TS_DMA_BYTES, PCI_DMA_FROMDEVICE);

      /* Workaround for broken hardware:
       * [1] On startup NBPACKETS seems to contain an uninitialized value,
       *     but no packets have been transfered.
       * [2] Sometimes (actually very often) NBPACKETS stays at zero
       *     although one packet has been transfered.
       * [3] Sometimes (actually rarely), the card gets into an erroneous
       *     mode where it continuously generates interrupts, claiming it
       *     has recieved nbpackets>TS_DMA_PACKETS packets, but no packet
       *     has been transfered. Only a reset seems to solve this
       */
      if ((nbpackets == 0) || (nbpackets > TS_DMA_PACKETS)) {
            unsigned int i = 0;
            while (pluto->dma_buf[i] == 0x47)
                  i += 188;
            nbpackets = i / 188;
            if (i == 0) {
                  pluto_reset_ts(pluto, 1);
                  dev_printk(KERN_DEBUG, &pluto->pdev->dev, "resetting TS because of invalid packet counter\n");
            }
      }

      dvb_dmx_swfilter_packets(&pluto->demux, pluto->dma_buf, nbpackets);

      /* clear the dma buffer. this is needed to be able to identify
       * new valid ts packets above */
      memset(pluto->dma_buf, 0, nbpackets * 188);

      /* reset the dma address */
      pluto_set_dma_addr(pluto);

      /* sync the buffer and give it back to the card */
      pci_dma_sync_single_for_device(pluto->pdev, pluto->dma_addr,
                  TS_DMA_BYTES, PCI_DMA_FROMDEVICE);
}

static irqreturn_t pluto_irq(int irq, void *dev_id)
{
      struct pluto *pluto = dev_id;
      u32 tscr;

      /* check whether an interrupt occured on this device */
      tscr = pluto_readreg(pluto, REG_TSCR);
      if (!(tscr & (TSCR_DE | TSCR_OVR)))
            return IRQ_NONE;

      if (tscr == 0xffffffff) {
            // FIXME: maybe recover somehow
            dev_err(&pluto->pdev->dev, "card hung up :(\n");
            return IRQ_HANDLED;
      }

      /* dma end interrupt */
      if (tscr & TSCR_DE) {
            pluto_dma_end(pluto, (tscr & TSCR_NBPACKETS) >> 24);
            /* overflow interrupt */
            if (tscr & TSCR_OVR)
                  pluto->overflow++;
            if (pluto->overflow) {
                  dev_err(&pluto->pdev->dev, "overflow irq (%d)\n",
                              pluto->overflow);
                  pluto_reset_ts(pluto, 1);
                  pluto->overflow = 0;
            }
      } else if (tscr & TSCR_OVR) {
            pluto->overflow++;
      }

      /* ACK the interrupt */
      pluto_write_tscr(pluto, tscr | TSCR_IACK);

      return IRQ_HANDLED;
}

static void __devinit pluto_enable_irqs(struct pluto *pluto)
{
      u32 val = pluto_readreg(pluto, REG_TSCR);

      /* disable AFUL and LOCK interrupts */
      val |= (TSCR_MSKA | TSCR_MSKL);
      /* enable DMA and OVERFLOW interrupts */
      val &= ~(TSCR_DEM | TSCR_MSKO);
      /* clear pending interrupts */
      val |= TSCR_IACK;

      pluto_write_tscr(pluto, val);
}

static void pluto_disable_irqs(struct pluto *pluto)
{
      u32 val = pluto_readreg(pluto, REG_TSCR);

      /* disable all interrupts */
      val |= (TSCR_DEM | TSCR_MSKO | TSCR_MSKA | TSCR_MSKL);
      /* clear pending interrupts */
      val |= TSCR_IACK;

      pluto_write_tscr(pluto, val);
}

static int __devinit pluto_hw_init(struct pluto *pluto)
{
      pluto_reset_frontend(pluto, 1);

      /* set automatic LED control by FPGA */
      pluto_rw(pluto, REG_MISC, MISC_ALED, MISC_ALED);

      /* set data endianess */
#ifdef __LITTLE_ENDIAN
      pluto_rw(pluto, REG_PIDn(0), PID0_END, PID0_END);
#else
      pluto_rw(pluto, REG_PIDn(0), PID0_END, 0);
#endif
      /* map DMA and set address */
      pluto_dma_map(pluto);
      pluto_set_dma_addr(pluto);

      /* enable interrupts */
      pluto_enable_irqs(pluto);

      /* reset TS logic */
      pluto_reset_ts(pluto, 1);

      return 0;
}

static void pluto_hw_exit(struct pluto *pluto)
{
      /* disable interrupts */
      pluto_disable_irqs(pluto);

      pluto_reset_ts(pluto, 0);

      /* LED: disable automatic control, enable yellow, disable green */
      pluto_rw(pluto, REG_MISC, MISC_ALED | MISC_LED1 | MISC_LED0, MISC_LED1);

      /* unmap DMA */
      pluto_dma_unmap(pluto);

      pluto_reset_frontend(pluto, 0);
}

static inline u32 divide(u32 numerator, u32 denominator)
{
      if (denominator == 0)
            return ~0;

      return (numerator + denominator / 2) / denominator;
}

/* LG Innotek TDTE-E001P (Infineon TUA6034) */
static int lg_tdtpe001p_tuner_set_params(struct dvb_frontend *fe,
                               struct dvb_frontend_parameters *p)
{
      struct pluto *pluto = frontend_to_pluto(fe);
      struct i2c_msg msg;
      int ret;
      u8 buf[4];
      u32 div;

      // Fref = 166.667 Hz
      // Fref * 3 = 500.000 Hz
      // IF = 36166667
      // IF / Fref = 217
      //div = divide(p->frequency + 36166667, 166667);
      div = divide(p->frequency * 3, 500000) + 217;
      buf[0] = (div >> 8) & 0x7f;
      buf[1] = (div >> 0) & 0xff;

      if (p->frequency < 611000000)
            buf[2] = 0xb4;
      else if (p->frequency < 811000000)
            buf[2] = 0xbc;
      else
            buf[2] = 0xf4;

      // VHF: 174-230 MHz
      // center: 350 MHz
      // UHF: 470-862 MHz
      if (p->frequency < 350000000)
            buf[3] = 0x02;
      else
            buf[3] = 0x04;

      if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
            buf[3] |= 0x08;

      if (sizeof(buf) == 6) {
            buf[4] = buf[2];
            buf[4] &= ~0x1c;
            buf[4] |=  0x18;

            buf[5] = (0 << 7) | (2 << 4);
      }

      msg.addr = I2C_ADDR_TUA6034 >> 1;
      msg.flags = 0;
      msg.buf = buf;
      msg.len = sizeof(buf);

      if (fe->ops.i2c_gate_ctrl)
            fe->ops.i2c_gate_ctrl(fe, 1);
      ret = i2c_transfer(&pluto->i2c_adap, &msg, 1);
      if (ret < 0)
            return ret;
      else if (ret == 0)
            return -EREMOTEIO;

      return 0;
}

static int pluto2_request_firmware(struct dvb_frontend *fe,
                           const struct firmware **fw, char *name)
{
      struct pluto *pluto = frontend_to_pluto(fe);

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

static struct tda1004x_config pluto2_fe_config __devinitdata = {
      .demod_address = I2C_ADDR_TDA10046 >> 1,
      .invert = 1,
      .invert_oclk = 0,
      .xtal_freq = TDA10046_XTAL_16M,
      .agc_config = TDA10046_AGC_DEFAULT,
      .if_freq = TDA10046_FREQ_3617,
      .request_firmware = pluto2_request_firmware,
};

static int __devinit frontend_init(struct pluto *pluto)
{
      int ret;

      pluto->fe = tda10046_attach(&pluto2_fe_config, &pluto->i2c_adap);
      if (!pluto->fe) {
            dev_err(&pluto->pdev->dev, "could not attach frontend\n");
            return -ENODEV;
      }
      pluto->fe->ops.tuner_ops.set_params = lg_tdtpe001p_tuner_set_params;

      ret = dvb_register_frontend(&pluto->dvb_adapter, pluto->fe);
      if (ret < 0) {
            if (pluto->fe->ops.release)
                  pluto->fe->ops.release(pluto->fe);
            return ret;
      }

      return 0;
}

static void __devinit pluto_read_rev(struct pluto *pluto)
{
      u32 val = pluto_readreg(pluto, REG_MISC) & MISC_DVR;
      dev_info(&pluto->pdev->dev, "board revision %d.%d\n",
                  (val >> 12) & 0x0f, (val >> 4) & 0xff);
}

static void __devinit pluto_read_mac(struct pluto *pluto, u8 *mac)
{
      u32 val = pluto_readreg(pluto, REG_MMAC);
      mac[0] = (val >> 8) & 0xff;
      mac[1] = (val >> 0) & 0xff;

      val = pluto_readreg(pluto, REG_IMAC);
      mac[2] = (val >> 8) & 0xff;
      mac[3] = (val >> 0) & 0xff;

      val = pluto_readreg(pluto, REG_LMAC);
      mac[4] = (val >> 8) & 0xff;
      mac[5] = (val >> 0) & 0xff;

      dev_info(&pluto->pdev->dev, "MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
                  mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
}

static int __devinit pluto_read_serial(struct pluto *pluto)
{
      struct pci_dev *pdev = pluto->pdev;
      unsigned int i, j;
      u8 __iomem *cis;

      cis = pci_iomap(pdev, 1, 0);
      if (!cis)
            return -EIO;

      dev_info(&pdev->dev, "S/N ");

      for (i = 0xe0; i < 0x100; i += 4) {
            u32 val = readl(&cis[i]);
            for (j = 0; j < 32; j += 8) {
                  if ((val & 0xff) == 0xff)
                        goto out;
                  printk("%c", val & 0xff);
                  val >>= 8;
            }
      }
out:
      printk("\n");
      pci_iounmap(pdev, cis);

      return 0;
}

static int __devinit pluto2_probe(struct pci_dev *pdev,
                          const struct pci_device_id *ent)
{
      struct pluto *pluto;
      struct dvb_adapter *dvb_adapter;
      struct dvb_demux *dvbdemux;
      struct dmx_demux *dmx;
      int ret = -ENOMEM;

      pluto = kzalloc(sizeof(struct pluto), GFP_KERNEL);
      if (!pluto)
            goto out;

      pluto->pdev = pdev;

      ret = pci_enable_device(pdev);
      if (ret < 0)
            goto err_kfree;

      /* enable interrupts */
      pci_write_config_dword(pdev, 0x6c, 0x8000);

      ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
      if (ret < 0)
            goto err_pci_disable_device;

      pci_set_master(pdev);

      ret = pci_request_regions(pdev, DRIVER_NAME);
      if (ret < 0)
            goto err_pci_disable_device;

      pluto->io_mem = pci_iomap(pdev, 0, 0x40);
      if (!pluto->io_mem) {
            ret = -EIO;
            goto err_pci_release_regions;
      }

      pci_set_drvdata(pdev, pluto);

      ret = request_irq(pdev->irq, pluto_irq, IRQF_SHARED, DRIVER_NAME, pluto);
      if (ret < 0)
            goto err_pci_iounmap;

      ret = pluto_hw_init(pluto);
      if (ret < 0)
            goto err_free_irq;

      /* i2c */
      i2c_set_adapdata(&pluto->i2c_adap, pluto);
      strcpy(pluto->i2c_adap.name, DRIVER_NAME);
      pluto->i2c_adap.owner = THIS_MODULE;
      pluto->i2c_adap.class = I2C_CLASS_TV_DIGITAL;
      pluto->i2c_adap.dev.parent = &pdev->dev;
      pluto->i2c_adap.algo_data = &pluto->i2c_bit;
      pluto->i2c_bit.data = pluto;
      pluto->i2c_bit.setsda = pluto_setsda;
      pluto->i2c_bit.setscl = pluto_setscl;
      pluto->i2c_bit.getsda = pluto_getsda;
      pluto->i2c_bit.getscl = pluto_getscl;
      pluto->i2c_bit.udelay = 10;
      pluto->i2c_bit.timeout = 10;

      /* Raise SCL and SDA */
      pluto_setsda(pluto, 1);
      pluto_setscl(pluto, 1);

      ret = i2c_bit_add_bus(&pluto->i2c_adap);
      if (ret < 0)
            goto err_pluto_hw_exit;

      /* dvb */
      ret = dvb_register_adapter(&pluto->dvb_adapter, DRIVER_NAME, THIS_MODULE, &pdev->dev);
      if (ret < 0)
            goto err_i2c_del_adapter;

      dvb_adapter = &pluto->dvb_adapter;

      pluto_read_rev(pluto);
      pluto_read_serial(pluto);
      pluto_read_mac(pluto, dvb_adapter->proposed_mac);

      dvbdemux = &pluto->demux;
      dvbdemux->filternum = 256;
      dvbdemux->feednum = 256;
      dvbdemux->start_feed = pluto_start_feed;
      dvbdemux->stop_feed = pluto_stop_feed;
      dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
                  DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
      ret = dvb_dmx_init(dvbdemux);
      if (ret < 0)
            goto err_dvb_unregister_adapter;

      dmx = &dvbdemux->dmx;

      pluto->hw_frontend.source = DMX_FRONTEND_0;
      pluto->mem_frontend.source = DMX_MEMORY_FE;
      pluto->dmxdev.filternum = NHWFILTERS;
      pluto->dmxdev.demux = dmx;

      ret = dvb_dmxdev_init(&pluto->dmxdev, dvb_adapter);
      if (ret < 0)
            goto err_dvb_dmx_release;

      ret = dmx->add_frontend(dmx, &pluto->hw_frontend);
      if (ret < 0)
            goto err_dvb_dmxdev_release;

      ret = dmx->add_frontend(dmx, &pluto->mem_frontend);
      if (ret < 0)
            goto err_remove_hw_frontend;

      ret = dmx->connect_frontend(dmx, &pluto->hw_frontend);
      if (ret < 0)
            goto err_remove_mem_frontend;

      ret = frontend_init(pluto);
      if (ret < 0)
            goto err_disconnect_frontend;

      dvb_net_init(dvb_adapter, &pluto->dvbnet, dmx);
out:
      return ret;

err_disconnect_frontend:
      dmx->disconnect_frontend(dmx);
err_remove_mem_frontend:
      dmx->remove_frontend(dmx, &pluto->mem_frontend);
err_remove_hw_frontend:
      dmx->remove_frontend(dmx, &pluto->hw_frontend);
err_dvb_dmxdev_release:
      dvb_dmxdev_release(&pluto->dmxdev);
err_dvb_dmx_release:
      dvb_dmx_release(dvbdemux);
err_dvb_unregister_adapter:
      dvb_unregister_adapter(dvb_adapter);
err_i2c_del_adapter:
      i2c_del_adapter(&pluto->i2c_adap);
err_pluto_hw_exit:
      pluto_hw_exit(pluto);
err_free_irq:
      free_irq(pdev->irq, pluto);
err_pci_iounmap:
      pci_iounmap(pdev, pluto->io_mem);
err_pci_release_regions:
      pci_release_regions(pdev);
err_pci_disable_device:
      pci_disable_device(pdev);
err_kfree:
      pci_set_drvdata(pdev, NULL);
      kfree(pluto);
      goto out;
}

static void __devexit pluto2_remove(struct pci_dev *pdev)
{
      struct pluto *pluto = pci_get_drvdata(pdev);
      struct dvb_adapter *dvb_adapter = &pluto->dvb_adapter;
      struct dvb_demux *dvbdemux = &pluto->demux;
      struct dmx_demux *dmx = &dvbdemux->dmx;

      dmx->close(dmx);
      dvb_net_release(&pluto->dvbnet);
      if (pluto->fe)
            dvb_unregister_frontend(pluto->fe);

      dmx->disconnect_frontend(dmx);
      dmx->remove_frontend(dmx, &pluto->mem_frontend);
      dmx->remove_frontend(dmx, &pluto->hw_frontend);
      dvb_dmxdev_release(&pluto->dmxdev);
      dvb_dmx_release(dvbdemux);
      dvb_unregister_adapter(dvb_adapter);
      i2c_del_adapter(&pluto->i2c_adap);
      pluto_hw_exit(pluto);
      free_irq(pdev->irq, pluto);
      pci_iounmap(pdev, pluto->io_mem);
      pci_release_regions(pdev);
      pci_disable_device(pdev);
      pci_set_drvdata(pdev, NULL);
      kfree(pluto);
}

#ifndef PCI_VENDOR_ID_SCM
#define PCI_VENDOR_ID_SCM     0x0432
#endif
#ifndef PCI_DEVICE_ID_PLUTO2
#define PCI_DEVICE_ID_PLUTO2  0x0001
#endif

static struct pci_device_id pluto2_id_table[] __devinitdata = {
      {
            .vendor = PCI_VENDOR_ID_SCM,
            .device = PCI_DEVICE_ID_PLUTO2,
            .subvendor = PCI_ANY_ID,
            .subdevice = PCI_ANY_ID,
      }, {
            /* empty */
      },
};

MODULE_DEVICE_TABLE(pci, pluto2_id_table);

static struct pci_driver pluto2_driver = {
      .name = DRIVER_NAME,
      .id_table = pluto2_id_table,
      .probe = pluto2_probe,
      .remove = __devexit_p(pluto2_remove),
};

static int __init pluto2_init(void)
{
      return pci_register_driver(&pluto2_driver);
}

static void __exit pluto2_exit(void)
{
      pci_unregister_driver(&pluto2_driver);
}

module_init(pluto2_init);
module_exit(pluto2_exit);

MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
MODULE_DESCRIPTION("Pluto2 driver");
MODULE_LICENSE("GPL");

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