drivers/media/dvb/pluto2/pluto2.c - kernel/msm-4.19 - Gitiles

 /*
  * 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_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_writereg(pluto, REG_TSCR, val);
 	}
 	if (reenable) {
 		val |= TSCR_RSTN;
 		pluto_writereg(pluto, REG_TSCR, 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.
 	 */
 	if ((nbpackets == 0) || (nbpackets > TS_DMA_PACKETS)) {
 		unsigned int i = 0;
 		while (pluto->dma_buf[i] == 0x47)
 			i += 188;
 		nbpackets = i / 188;
 	}

 	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 pt_regs *regs)
 {
 	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_writereg(pluto, REG_TSCR, tscr | TSCR_IACK);

 	return IRQ_HANDLED;
 }

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

 	/* set the number of packets */
 	val &= ~TSCR_ADEF;
 	val |= TS_DMA_PACKETS / 2;
 	/* 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_writereg(pluto, REG_TSCR, 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_writereg(pluto, REG_TSCR, 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, SA_SHIRQ, 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_bit_del_bus;

 	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_bit_del_bus:
 	i2c_bit_del_bus(&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_bit_del_bus(&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");
	/*
	* 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_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_writereg(pluto, REG_TSCR, val);
	}
	if (reenable) {
	val \|= TSCR_RSTN;
	pluto_writereg(pluto, REG_TSCR, 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.
	*/
	if ((nbpackets == 0) \|\| (nbpackets > TS_DMA_PACKETS)) {
	unsigned int i = 0;
	while (pluto->dma_buf[i] == 0x47)
	i += 188;
	nbpackets = i / 188;
	}

	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 pt_regs regs)
	{
	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_writereg(pluto, REG_TSCR, tscr \| TSCR_IACK);

	return IRQ_HANDLED;
	}

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

	/* set the number of packets */
	val &= ~TSCR_ADEF;
	val \|= TS_DMA_PACKETS / 2;
	/* 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_writereg(pluto, REG_TSCR, 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_writereg(pluto, REG_TSCR, 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, SA_SHIRQ, 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_bit_del_bus;

	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_bit_del_bus:
	i2c_bit_del_bus(&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_bit_del_bus(&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");