pluto2.c

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/*
 * pluto2.c - Satelco Easywatch Mobile Terrestrial Receiver [DVB-T]
 *
 * Copyright (C) 2005 Andreas Oberritter <[email protected]>
 *
 * based on pluto2.c 1.10 - http://instinct-wp8.no-ip.org/pluto/
 *  by Dany Salman <[email protected]>
 *  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/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/slab.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"

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#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;
    unsigned int dead;

    /* 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, 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->pdev, 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 transferred.
     * [2] Sometimes (actually very often) NBPACKETS stays at zero
     *     although one packet has been transferred.
     * [3] Sometimes (actually rarely), the card gets into an erroneous
     *     mode where it continuously generates interrupts, claiming it
     *     has received nbpackets>TS_DMA_PACKETS packets, but no packet
     *     has been transferred. 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 occurred on this device */
    tscr = pluto_readreg(pluto, REG_TSCR);
    if (!(tscr & (TSCR_DE | TSCR_OVR)))
        return IRQ_NONE;

    if (tscr == 0xffffffff) {
        if (pluto->dead == 0)
            dev_err(&pluto->pdev->dev, "card has hung or been ejected.\n");
        /* It's dead Jim */
        pluto->dead = 1;
        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 DIV_ROUND_CLOSEST(numerator, denominator);
}

/* LG Innotek TDTE-E001P (Infineon TUA6034) */
static int lg_tdtpe001p_tuner_set_params(struct dvb_frontend *fe)
{
    struct dtv_frontend_properties *p = &fe->dtv_property_cache;
    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->bandwidth_hz == 8000000)
        buf[3] |= 0x08;

    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 %pM\n", mac);
}

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_BIT_MASK(32));
    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.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, adapter_nr);
    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 <[email protected]>");
MODULE_DESCRIPTION("Pluto2 driver");
MODULE_LICENSE("GPL");