text: /*
   * 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/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 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 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 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 endianness */
  #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 = {
  	.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 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 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 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 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 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:
  	kfree(pluto);
  	goto out;
  }
  
  static void 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);
  	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[] = {
  	{
  		.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 = pluto2_remove,
  };
  
  module_pci_driver(pluto2_driver);
  
  MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
  MODULE_DESCRIPTION("Pluto2 driver");
  MODULE_LICENSE("GPL");
  