static int __devinit piix4_setup_sb800(struct pci_dev *PIIX4_dev,
				const struct pci_device_id *id)
{
	unsigned short smba_idx = 0xcd6;
	u8 smba_en_lo, smba_en_hi, i2ccfg, i2ccfg_offset = 0x10, smb_en = 0x2c;

	/* SB800 and later SMBus does not support forcing address */
	if (force || force_addr) {
		dev_err(&PIIX4_dev->dev, "SMBus does not support "
			"forcing address!\n");
		return -EINVAL;
	}

	/* Determine the address of the SMBus areas */
	if (!request_region(smba_idx, 2, "smba_idx")) {
		dev_err(&PIIX4_dev->dev, "SMBus base address index region "
			"0x%x already in use!\n", smba_idx);
		return -EBUSY;
	}
	outb_p(smb_en, smba_idx);
	smba_en_lo = inb_p(smba_idx + 1);
	outb_p(smb_en + 1, smba_idx);
	smba_en_hi = inb_p(smba_idx + 1);
	release_region(smba_idx, 2);

	if ((smba_en_lo & 1) == 0) {
		dev_err(&PIIX4_dev->dev,
			"Host SMBus controller not enabled!\n");
		return -ENODEV;
	}

	piix4_smba = ((smba_en_hi << 8) | smba_en_lo) & 0xffe0;
	if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
		return -ENODEV;

	if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) {
		dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",
			piix4_smba);
		return -EBUSY;
	}

	/* Request the SMBus I2C bus config region */
	if (!request_region(piix4_smba + i2ccfg_offset, 1, "i2ccfg")) {
		dev_err(&PIIX4_dev->dev, "SMBus I2C bus config region "
			"0x%x already in use!\n", piix4_smba + i2ccfg_offset);
		release_region(piix4_smba, SMBIOSIZE);
		piix4_smba = 0;
		return -EBUSY;
	}
	i2ccfg = inb_p(piix4_smba + i2ccfg_offset);
	release_region(piix4_smba + i2ccfg_offset, 1);

	if (i2ccfg & 1)
		dev_dbg(&PIIX4_dev->dev, "Using IRQ for SMBus.\n");
	else
		dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus.\n");

	dev_info(&PIIX4_dev->dev,
		 "SMBus Host Controller at 0x%x, revision %d\n",
		 piix4_smba, i2ccfg >> 4);

	return 0;
}

static int __devinit
cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id)
{
    struct Scsi_Host *host;
    int ret;

    ret = ecard_request_resources(ec);
    if (ret)
        goto out;

    host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
    if (!host) {
        ret = -ENOMEM;
        goto out_release;
    }

    priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW),
                               ecard_resource_len(ec, ECARD_RES_IOCSLOW));
    priv(host)->dma = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
                              ecard_resource_len(ec, ECARD_RES_MEMC));
    if (!priv(host)->base || !priv(host)->dma) {
        ret = -ENOMEM;
        goto out_unmap;
    }

    host->irq = ec->irq;

    NCR5380_init(host, 0);

    priv(host)->ctrl = 0;
    writeb(0, priv(host)->base + CTRL);

    host->n_io_port = 255;
    if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) {
        ret = -EBUSY;
        goto out_unmap;
    }

    ret = request_irq(host->irq, cumanascsi_intr, IRQF_DISABLED,
                      "CumanaSCSI-1", host);
    if (ret) {
//		printk("scsi%d: IRQ%d not free: %d\n",
        ;
        goto out_unmap;
    }

//	printk("scsi%d: at port 0x%08lx irq %d",
    ;
//	printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
    ;
    ;
    NCR5380_print_options(host);
    ;

    ret = scsi_add_host(host, &ec->dev);
    if (ret)
        goto out_free_irq;

    scsi_scan_host(host);
    goto out;

out_free_irq:
    free_irq(host->irq, host);
out_unmap:
    iounmap(priv(host)->base);
    iounmap(priv(host)->dma);
    scsi_host_put(host);
out_release:
    ecard_release_resources(ec);
out:
    return ret;
}

int snd_gus_create(struct snd_card *card,
		   unsigned long port,
		   int irq, int dma1, int dma2,
		   int timer_dev,
		   int voices,
		   int pcm_channels,
		   int effect,
		   struct snd_gus_card **rgus)
{
	struct snd_gus_card *gus;
	int err;
	static struct snd_device_ops ops = {
		.dev_free =	snd_gus_dev_free,
	};

	*rgus = NULL;
	gus = kzalloc(sizeof(*gus), GFP_KERNEL);
	if (gus == NULL)
		return -ENOMEM;
	gus->gf1.irq = -1;
	gus->gf1.dma1 = -1;
	gus->gf1.dma2 = -1;
	gus->card = card;
	gus->gf1.port = port;
	/* fill register variables for speedup */
	gus->gf1.reg_page = GUSP(gus, GF1PAGE);
	gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
	gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
	gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
	gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
	gus->gf1.reg_dram = GUSP(gus, DRAM);
	gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
	gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
	/* allocate resources */
	if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
		snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
		snd_gus_free(gus);
		return -EBUSY;
	}
	if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
		snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
		snd_gus_free(gus);
		return -EBUSY;
	}
	if (irq >= 0 && request_irq(irq, snd_gus_interrupt, SA_INTERRUPT, "GUS GF1", (void *) gus)) {
		snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
		snd_gus_free(gus);
		return -EBUSY;
	}
	gus->gf1.irq = irq;
	if (request_dma(dma1, "GUS - 1")) {
		snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
		snd_gus_free(gus);
		return -EBUSY;
	}
	gus->gf1.dma1 = dma1;
	if (dma2 >= 0 && dma1 != dma2) {
		if (request_dma(dma2, "GUS - 2")) {
			snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
			snd_gus_free(gus);
			return -EBUSY;
		}
		gus->gf1.dma2 = dma2;
	} else {
		gus->gf1.dma2 = gus->gf1.dma1;
		gus->equal_dma = 1;
	}
	gus->timer_dev = timer_dev;
	if (voices < 14)
		voices = 14;
	if (voices > 32)
		voices = 32;
	if (pcm_channels < 0)
		pcm_channels = 0;
	if (pcm_channels > 8)
		pcm_channels = 8;
	pcm_channels++;
	pcm_channels &= ~1;
	gus->gf1.effect = effect ? 1 : 0;
	gus->gf1.active_voices = voices;
	gus->gf1.pcm_channels = pcm_channels;
	gus->gf1.volume_ramp = 25;
	gus->gf1.smooth_pan = 1;
	spin_lock_init(&gus->reg_lock);
	spin_lock_init(&gus->voice_alloc);
	spin_lock_init(&gus->active_voice_lock);
	spin_lock_init(&gus->event_lock);
	spin_lock_init(&gus->dma_lock);
	spin_lock_init(&gus->pcm_volume_level_lock);
	spin_lock_init(&gus->uart_cmd_lock);
	mutex_init(&gus->dma_mutex);
	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
		snd_gus_free(gus);
		return err;
	}
	*rgus = gus;
	return 0;
}

static int t1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
{
	avmcard *card;
	avmctrl_info *cinfo;
	int retval;

	MOD_INC_USE_COUNT;

	card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);

	if (!card) {
		printk(KERN_WARNING "%s: no memory.\n", driver->name);
	        MOD_DEC_USE_COUNT;
		return -ENOMEM;
	}
	memset(card, 0, sizeof(avmcard));
	card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
	if (!card->dma) {
		printk(KERN_WARNING "%s: no memory.\n", driver->name);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -ENOMEM;
	}
	memset(card->dma, 0, sizeof(avmcard_dmainfo));
        cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
	if (!cinfo) {
		printk(KERN_WARNING "%s: no memory.\n", driver->name);
		kfree(card->dma);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -ENOMEM;
	}
	memset(cinfo, 0, sizeof(avmctrl_info));
	card->ctrlinfo = cinfo;
	cinfo->card = card;
	sprintf(card->name, "t1pci-%x", p->port);
	card->port = p->port;
	card->irq = p->irq;
	card->membase = p->membase;
	card->cardtype = avm_t1pci;

	if (check_region(card->port, AVMB1_PORTLEN)) {
		printk(KERN_WARNING
		       "%s: ports 0x%03x-0x%03x in use.\n",
		       driver->name, card->port, card->port + AVMB1_PORTLEN);
	        kfree(card->ctrlinfo);
		kfree(card->dma);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -EBUSY;
	}

	card->mbase = ioremap_nocache(card->membase, 64);
	if (!card->mbase) {
		printk(KERN_NOTICE "%s: can't remap memory at 0x%lx\n",
					driver->name, card->membase);
	        kfree(card->ctrlinfo);
		kfree(card->dma);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -EIO;
	}

	b1dma_reset(card);

	if ((retval = t1pci_detect(card)) != 0) {
		if (retval < 6)
			printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
					driver->name, card->port, retval);
		else
			printk(KERN_NOTICE "%s: card at 0x%x, but cabel not connected or T1 has no power (%d)\n",
					driver->name, card->port, retval);
                iounmap(card->mbase);
	        kfree(card->ctrlinfo);
		kfree(card->dma);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -EIO;
	}
	b1dma_reset(card);

	request_region(p->port, AVMB1_PORTLEN, card->name);

	retval = request_irq(card->irq, b1dma_interrupt, SA_SHIRQ, card->name, card);
	if (retval) {
		printk(KERN_ERR "%s: unable to get IRQ %d.\n",
				driver->name, card->irq);
                iounmap(card->mbase);
		release_region(card->port, AVMB1_PORTLEN);
	        kfree(card->ctrlinfo);
		kfree(card->dma);
		kfree(card);
	        MOD_DEC_USE_COUNT;
		return -EBUSY;
	}

	cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
	if (!cinfo->capi_ctrl) {
		printk(KERN_ERR "%s: attach controller failed.\n", driver->name);
                iounmap(card->mbase);
//.........这里部分代码省略.........

static int init_mediavision(void)
{
	int id;
	int idec, decst;
	int i;
		
	unsigned char i2c_defs[]={
		0x4C,0x30,0x00,0xE8,
		0xB6,0xE2,0x00,0x00,
		0xFF,0xFF,0x00,0x00,
		0x00,0x00,0x78,0x98,
		0x00,0x00,0x00,0x00,
		0x34,0x0A,0xF4,0xCE,
		0xE4
	};

	mem = ioremap(mem_base, 0x800);
	if (!mem)
		return -ENOMEM;
	
	if (!request_region(0x9A01, 1, "Mediavision PMS config"))
	{
		printk(KERN_WARNING "mediavision: unable to detect: 0x9A01 in use.\n");
		iounmap(mem);
		return -EBUSY;
	}
	if (!request_region(io_port, 3, "Mediavision PMS"))
	{
		printk(KERN_WARNING "mediavision: I/O port %d in use.\n", io_port);
		release_region(0x9A01, 1);
		iounmap(mem);
		return -EBUSY;
	}
	outb(0xB8, 0x9A01);		/* Unlock */
	outb(io_port>>4, 0x9A01);	/* Set IO port */
	
	
	id=mvv_read(3);
	decst=pms_i2c_stat(0x43);
	
	if(decst!=-1)
		idec=2;
	else if(pms_i2c_stat(0xb9)!=-1)
		idec=3;
	else if(pms_i2c_stat(0x8b)!=-1)
		idec=1;
	else 
		idec=0;

	printk(KERN_INFO "PMS type is %d\n", idec);
	if(idec == 0) {
		release_region(io_port, 3);
		release_region(0x9A01, 1);
		iounmap(mem);
		return -ENODEV;
	}

	/*
	 *	Ok we have a PMS of some sort
	 */
	
	mvv_write(0x04, mem_base>>12);	/* Set the memory area */
	
	/* Ok now load the defaults */
	
	for(i=0;i<0x19;i++)
	{
		if(i2c_defs[i]==0xFF)
			pms_i2c_andor(0x8A, i, 0x07,0x00);
		else
			pms_i2c_write(0x8A, i, i2c_defs[i]);
	}
	
	pms_i2c_write(0xB8,0x00,0x12);
	pms_i2c_write(0xB8,0x04,0x00);
	pms_i2c_write(0xB8,0x07,0x00);
	pms_i2c_write(0xB8,0x08,0x00);
	pms_i2c_write(0xB8,0x09,0xFF);
	pms_i2c_write(0xB8,0x0A,0x00);
	pms_i2c_write(0xB8,0x0B,0x10);
	pms_i2c_write(0xB8,0x10,0x03);
	
	mvv_write(0x01, 0x00);
	mvv_write(0x05, 0xA0);
	mvv_write(0x08, 0x25);
	mvv_write(0x09, 0x00);
	mvv_write(0x0A, 0x20|MVVMEMORYWIDTH);	
	
	mvv_write(0x10, 0x02);
	mvv_write(0x1E, 0x0C);
	mvv_write(0x1F, 0x03);
	mvv_write(0x26, 0x06);
	
	mvv_write(0x2B, 0x00);
	mvv_write(0x2C, 0x20);
	mvv_write(0x2D, 0x00);
	mvv_write(0x2F, 0x70);
	mvv_write(0x32, 0x00);
	mvv_write(0x33, MVVMEMORYWIDTH);
	mvv_write(0x34, 0x00);
//.........这里部分代码省略.........

static int __init ultra32_probe1(struct net_device *dev, int ioaddr)
{
	int i, edge, media, retval;
	int checksum = 0;
	const char *model_name;
	static unsigned version_printed;
	/* Values from various config regs. */
	unsigned char idreg;
	unsigned char reg4;
	const char *ifmap[] = {"UTP No Link", "", "UTP/AUI", "UTP/BNC"};

	if (!request_region(ioaddr, ULTRA32_IO_EXTENT, DRV_NAME))
		return -EBUSY;

	if (inb(ioaddr + ULTRA32_IDPORT) == 0xff ||
	    inl(ioaddr + ULTRA32_IDPORT) != ULTRA32_ID) {
		retval = -ENODEV;
		goto out;
	}

	media = inb(ioaddr + ULTRA32_CFG7) & 0x03;
	edge = inb(ioaddr + ULTRA32_CFG5) & 0x08;
	printk("SMC Ultra32 in EISA Slot %d, Media: %s, %s IRQs.\n",
		ioaddr >> 12, ifmap[media],
		(edge ? "Edge Triggered" : "Level Sensitive"));

	idreg = inb(ioaddr + 7);
	reg4 = inb(ioaddr + 4) & 0x7f;

	/* Check the ID nibble. */
	if ((idreg & 0xf0) != 0x20) {			/* SMC Ultra */
		retval = -ENODEV;
		goto out;
	}

	/* Select the station address register set. */
	outb(reg4, ioaddr + 4);

	for (i = 0; i < 8; i++)
		checksum += inb(ioaddr + 8 + i);
	if ((checksum & 0xff) != 0xff) {
		retval = -ENODEV;
		goto out;
	}

	if (ei_debug  &&  version_printed++ == 0)
		printk(version);

	model_name = "SMC Ultra32";

	for (i = 0; i < 6; i++)
		dev->dev_addr[i] = inb(ioaddr + 8 + i);

	printk("%s: %s at 0x%X, %pM",
	       dev->name, model_name, ioaddr, dev->dev_addr);

	/* Switch from the station address to the alternate register set and
	   read the useful registers there. */
	outb(0x80 | reg4, ioaddr + 4);

	/* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
	outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);

	/* Reset RAM addr. */
	outb(0x00, ioaddr + 0x0b);

	/* Switch back to the station address register set so that the
	   MS-DOS driver can find the card after a warm boot. */
	outb(reg4, ioaddr + 4);

	if ((inb(ioaddr + ULTRA32_CFG5) & 0x40) == 0) {
		printk("\nsmc-ultra32: Card RAM is disabled!  "
		       "Run EISA config utility.\n");
		retval = -ENODEV;
		goto out;
	}
	if ((inb(ioaddr + ULTRA32_CFG2) & 0x04) == 0)
		printk("\nsmc-ultra32: Ignoring Bus-Master enable bit.  "
		       "Run EISA config utility.\n");

	if (dev->irq < 2) {
		unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
		int irq = irqmap[inb(ioaddr + ULTRA32_CFG5) & 0x07];
		if (irq == 0) {
			printk(", failed to detect IRQ line.\n");
			retval = -EAGAIN;
			goto out;
		}
		dev->irq = irq;
	}

	/* The 8390 isn't at the base address, so fake the offset */
	dev->base_addr = ioaddr + ULTRA32_NIC_OFFSET;

	/* Save RAM address in the unused reg0 to avoid excess inb's. */
	ei_status.reg0 = inb(ioaddr + ULTRA32_CFG3) & 0xfc;

	dev->mem_start =  0xc0000 + ((ei_status.reg0 & 0x7c) << 11);

	ei_status.name = model_name;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        PFDIR |= PF_CSA1;
 
        /* Make sure that interrupt line (irq3) is enabled too */
        PDSEL  &= ~PD_IRQ3;
        PDDIR  &= ~PD_IRQ3;
        PDKBEN |= PD_IRQ3;                                                       
#endif

	/* Initialize the device structure. */
	if (dev->priv == NULL) {
		dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL);
                memset(dev->priv, 0, sizeof(struct net_local));
        }
	dev->base_addr = ioaddr;
	lp = (struct net_local *)dev->priv;

	if (readreg(dev, PP_ChipID) != CHIP_EISA_ID_SIG) {
	  printk("cs89x0.c: No CrystalLan device found.\n");
		return ENODEV;
	}

	/* get the chip type */
	rev_type = readreg(dev, PRODUCT_ID_ADD);
	lp->chip_type = rev_type &~ REVISON_BITS;
	lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';

	/* Check the chip type and revision in order to set the correct send command
	CS8920 revision C and CS8900 revision F can use the faster send. */
	lp->send_cmd = TX_AFTER_ALL;
#if 0
	if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
		lp->send_cmd = TX_NOW;
	if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
		lp->send_cmd = TX_NOW;
#endif
	if (net_debug  &&  version_printed++ == 0)
		printk(version);

	printk("%s: cs89%c0%s rev %c found at 0x%.8lx %s",
	       dev->name,
	       lp->chip_type==CS8900?'0':'2',
	       lp->chip_type==CS8920M?"M":"",
	       lp->chip_revision,
	       dev->base_addr,
	       readreg(dev, PP_SelfST) & ACTIVE_33V ? "3.3Volts" : "5Volts");

	reset_chip(dev);

	/* Fill this in, we don't have an EEPROM */
	lp->adapter_cnf = A_CNF_10B_T | A_CNF_MEDIA_10B_T;
	lp->auto_neg_cnf = EE_AUTO_NEG_ENABLE | IMM_BIT;

	printk(" media %s%s%s",
	       (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
	       (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
	       (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");

	lp->irq_map = 0xffff;

	/* dev->dev_addr[0] through dev->dev_addr[6] holds the mac address
	 * of this ethernet device.  This can be set to anything we want it
	 * to be.  But care should be taken to make this number unique... */

#if   defined(CONFIG_UCSIMM) || defined(CONFIG_EB40LS) || \
      defined(CONFIG_BLIP)   || defined(CONFIG_UCLINKII)
	{
 		extern unsigned char *cs8900a_hwaddr;
 		memcpy(dev->dev_addr, cs8900a_hwaddr, 6);
	}
	
#elif defined (CONFIG_BOARD_UCLINKII) || \
      defined (CONFIG_BOARD_EVS3C4530LII) || \
      defined (CONFIG_BOARD_EVS3C4530HEI)
      memcpy(dev->dev_addr, get_MAC_address("dev1"), 6);
#else
#error	    MAC address is not defined
#endif

	/* print the ethernet address. */
	for (i = 0; i < ETH_ALEN; i++)
		printk(" %2.2x", dev->dev_addr[i]);

#ifdef FIXME
	/* Grab the region so we can find another board if autoIRQ fails. */
	request_region(ioaddr, NETCARD_IO_EXTENT,"cs89x0");
#endif

	dev->open		= net_open;
	dev->stop		= net_close;
	dev->hard_start_xmit 	= net_send_packet;
	dev->get_stats		= net_get_stats;
	dev->set_multicast_list = &set_multicast_list;
	dev->set_mac_address 	= &set_mac_address;

	/* Fill in the fields of the device structure with ethernet values. */
	ether_setup(dev);

	printk("\n");
	return 0;
}

static int b1isa_probe(struct pci_dev *pdev)
{
	avmctrl_info *cinfo;
	avmcard *card;
	int retval;

	card = b1_alloc_card(1);
	if (!card) {
		printk(KERN_WARNING "b1isa: no memory.\n");
		retval = -ENOMEM;
		goto err;
	}

	cinfo = card->ctrlinfo;

	card->port = pci_resource_start(pdev, 0);
	card->irq = pdev->irq;
	card->cardtype = avm_b1isa;
	sprintf(card->name, "b1isa-%x", card->port);

	if (   card->port != 0x150 && card->port != 0x250
	    && card->port != 0x300 && card->port != 0x340) {
		printk(KERN_WARNING "b1isa: invalid port 0x%x.\n", card->port);
		retval = -EINVAL;
		goto err_free;
	}
	if (b1_irq_table[card->irq & 0xf] == 0) {
		printk(KERN_WARNING "b1isa: irq %d not valid.\n", card->irq);
		retval = -EINVAL;
		goto err_free;
	}
	if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
		printk(KERN_WARNING "b1isa: ports 0x%03x-0x%03x in use.\n",
		       card->port, card->port + AVMB1_PORTLEN);
		retval = -EBUSY;
		goto err_free;
	}
	retval = request_irq(card->irq, b1_interrupt, 0, card->name, card);
	if (retval) {
		printk(KERN_ERR "b1isa: unable to get IRQ %d.\n", card->irq);
		goto err_release_region;
	}
	b1_reset(card->port);
	if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
		printk(KERN_NOTICE "b1isa: NO card at 0x%x (%d)\n",
		       card->port, retval);
		retval = -ENODEV;
		goto err_free_irq;
	}
	b1_reset(card->port);
	b1_getrevision(card);

	cinfo->capi_ctrl.owner = THIS_MODULE;
	cinfo->capi_ctrl.driver_name   = "b1isa";
	cinfo->capi_ctrl.driverdata    = cinfo;
	cinfo->capi_ctrl.register_appl = b1_register_appl;
	cinfo->capi_ctrl.release_appl  = b1_release_appl;
	cinfo->capi_ctrl.send_message  = b1_send_message;
	cinfo->capi_ctrl.load_firmware = b1_load_firmware;
	cinfo->capi_ctrl.reset_ctr     = b1_reset_ctr;
	cinfo->capi_ctrl.procinfo      = b1isa_procinfo;
	cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
	strcpy(cinfo->capi_ctrl.name, card->name);

	retval = attach_capi_ctr(&cinfo->capi_ctrl);
	if (retval) {
		printk(KERN_ERR "b1isa: attach controller failed.\n");
		goto err_free_irq;
	}

	printk(KERN_INFO "b1isa: AVM B1 ISA at i/o %#x, irq %d, revision %d\n",
	       card->port, card->irq, card->revision);

	pci_set_drvdata(pdev, cinfo);
	return 0;

 err_free_irq:
	free_irq(card->irq, card);
 err_release_region:
	release_region(card->port, AVMB1_PORTLEN);
 err_free:
	b1_free_card(card);
 err:
	return retval;
}

static int b1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
{
    avmcard *card;
    avmctrl_info *cinfo;
    int retval;

    MOD_INC_USE_COUNT;

    card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);

    if (!card) {
        printk(KERN_WARNING "%s: no memory.\n", driver->name);
        MOD_DEC_USE_COUNT;
        return -ENOMEM;
    }
    memset(card, 0, sizeof(avmcard));
    cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
    if (!cinfo) {
        printk(KERN_WARNING "%s: no memory.\n", driver->name);
        kfree(card);
        MOD_DEC_USE_COUNT;
        return -ENOMEM;
    }
    memset(cinfo, 0, sizeof(avmctrl_info));
    card->ctrlinfo = cinfo;
    cinfo->card = card;
    sprintf(card->name, "b1pci-%x", p->port);
    card->port = p->port;
    card->irq = p->irq;
    card->cardtype = avm_b1pci;

    if (check_region(card->port, AVMB1_PORTLEN)) {
        printk(KERN_WARNING
               "%s: ports 0x%03x-0x%03x in use.\n",
               driver->name, card->port, card->port + AVMB1_PORTLEN);
        kfree(card->ctrlinfo);
        kfree(card);
        MOD_DEC_USE_COUNT;
        return -EBUSY;
    }
    b1_reset(card->port);
    if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
        printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
               driver->name, card->port, retval);
        kfree(card->ctrlinfo);
        kfree(card);
        MOD_DEC_USE_COUNT;
        return -EIO;
    }
    b1_reset(card->port);
    b1_getrevision(card);

    request_region(p->port, AVMB1_PORTLEN, card->name);

    retval = request_irq(card->irq, b1pci_interrupt, SA_SHIRQ, card->name, card);
    if (retval) {
        printk(KERN_ERR "%s: unable to get IRQ %d.\n",
               driver->name, card->irq);
        release_region(card->port, AVMB1_PORTLEN);
        kfree(card->ctrlinfo);
        kfree(card);
        MOD_DEC_USE_COUNT;
        return -EBUSY;
    }

    cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
    if (!cinfo->capi_ctrl) {
        printk(KERN_ERR "%s: attach controller failed.\n",
               driver->name);
        free_irq(card->irq, card);
        release_region(card->port, AVMB1_PORTLEN);
        kfree(card->ctrlinfo);
        kfree(card);
        MOD_DEC_USE_COUNT;
        return -EBUSY;
    }

    if (card->revision >= 4) {
        printk(KERN_INFO
               "%s: AVM B1 PCI V4 at i/o %#x, irq %d, revision %d (no dma)\n",
               driver->name, card->port, card->irq, card->revision);
    } else {
        printk(KERN_INFO
               "%s: AVM B1 PCI at i/o %#x, irq %d, revision %d\n",
               driver->name, card->port, card->irq, card->revision);
    }

    return 0;
}

static int __init n2_run(unsigned long io, unsigned long irq,
                         unsigned long winbase, long valid0, long valid1)
{
    card_t *card;
    u8 cnt, pcr;
    int i;

    if (io < 0x200 || io > 0x3FF || (io % N2_IOPORTS) != 0) {
        printk(KERN_ERR "n2: invalid I/O port value\n");
        return -ENODEV;
    }

    if (irq < 3 || irq > 15 || irq == 6) { /* FIXME */
        printk(KERN_ERR "n2: invalid IRQ value\n");
        return -ENODEV;
    }

    if (winbase < 0xA0000 || winbase > 0xFFFFF || (winbase & 0xFFF) != 0) {
        printk(KERN_ERR "n2: invalid RAM value\n");
        return -ENODEV;
    }

    card = kzalloc(sizeof(card_t), GFP_KERNEL);
    if (card == NULL) {
        printk(KERN_ERR "n2: unable to allocate memory\n");
        return -ENOBUFS;
    }

    card->ports[0].dev = alloc_hdlcdev(&card->ports[0]);
    card->ports[1].dev = alloc_hdlcdev(&card->ports[1]);
    if (!card->ports[0].dev || !card->ports[1].dev) {
        printk(KERN_ERR "n2: unable to allocate memory\n");
        n2_destroy_card(card);
        return -ENOMEM;
    }

    if (!request_region(io, N2_IOPORTS, devname)) {
        printk(KERN_ERR "n2: I/O port region in use\n");
        n2_destroy_card(card);
        return -EBUSY;
    }
    card->io = io;

    if (request_irq(irq, &sca_intr, 0, devname, card)) {
        printk(KERN_ERR "n2: could not allocate IRQ\n");
        n2_destroy_card(card);
        return(-EBUSY);
    }
    card->irq = irq;

    if (!request_mem_region(winbase, USE_WINDOWSIZE, devname)) {
        printk(KERN_ERR "n2: could not request RAM window\n");
        n2_destroy_card(card);
        return(-EBUSY);
    }
    card->phy_winbase = winbase;
    card->winbase = ioremap(winbase, USE_WINDOWSIZE);
    if (!card->winbase) {
        printk(KERN_ERR "n2: ioremap() failed\n");
        n2_destroy_card(card);
        return -EFAULT;
    }

    outb(0, io + N2_PCR);
    outb(winbase >> 12, io + N2_BAR);

    switch (USE_WINDOWSIZE) {
    case 16384:
        outb(WIN16K, io + N2_PSR);
        break;

    case 32768:
        outb(WIN32K, io + N2_PSR);
        break;

    case 65536:
        outb(WIN64K, io + N2_PSR);
        break;

    default:
        printk(KERN_ERR "n2: invalid window size\n");
        n2_destroy_card(card);
        return -ENODEV;
    }

    pcr = PCR_ENWIN | PCR_VPM | (USE_BUS16BITS ? PCR_BUS16 : 0);
    outb(pcr, io + N2_PCR);

    card->ram_size = sca_detect_ram(card, card->winbase, MAX_RAM_SIZE);

    /* number of TX + RX buffers for one port */
    i = card->ram_size / ((valid0 + valid1) * (sizeof(pkt_desc) +
                          HDLC_MAX_MRU));

    card->tx_ring_buffers = min(i / 2, MAX_TX_BUFFERS);
    card->rx_ring_buffers = i - card->tx_ring_buffers;

    card->buff_offset = (valid0 + valid1) * sizeof(pkt_desc) *
                        (card->tx_ring_buffers + card->rx_ring_buffers);

//.........这里部分代码省略.........

//.........这里部分代码省略.........
	}
}

static int acq_open(struct inode *inode, struct file *file)
{
	if (test_and_set_bit(0, &acq_is_open))
		return -EBUSY;

	if (nowayout)
		__module_get(THIS_MODULE);

	/* Activate */
	acq_keepalive();
	return nonseekable_open(inode, file);
}

static int acq_close(struct inode *inode, struct file *file)
{
	if (expect_close == 42) {
		acq_stop();
	} else {
		printk(KERN_CRIT PFX
			"Unexpected close, not stopping watchdog!\n");
		acq_keepalive();
	}
	clear_bit(0, &acq_is_open);
	expect_close = 0;
	return 0;
}

/*
 *	Kernel Interfaces
 */

static const struct file_operations acq_fops = {
	.owner		= THIS_MODULE,
	.llseek		= no_llseek,
	.write		= acq_write,
	.unlocked_ioctl	= acq_ioctl,
	.open		= acq_open,
	.release	= acq_close,
};

static struct miscdevice acq_miscdev = {
	.minor	= WATCHDOG_MINOR,
	.name	= "watchdog",
	.fops	= &acq_fops,
};

/*
 *	Init & exit routines
 */

static int __devinit acq_probe(struct platform_device *dev)
{
	int ret;

	if (wdt_stop != wdt_start) {
		if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
			printk(KERN_ERR PFX
			    "I/O address 0x%04x already in use\n", wdt_stop);
			ret = -EIO;
			goto out;
		}
	}

	if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
			wdt_start);
		ret = -EIO;
		goto unreg_stop;
	}
	ret = misc_register(&acq_miscdev);
	if (ret != 0) {
		printk(KERN_ERR PFX
			"cannot register miscdev on minor=%d (err=%d)\n",
							WATCHDOG_MINOR, ret);
		goto unreg_regions;
	}
	printk(KERN_INFO PFX "initialized. (nowayout=%d)\n", nowayout);

	return 0;
unreg_regions:
	release_region(wdt_start, 1);
unreg_stop:
	if (wdt_stop != wdt_start)
		release_region(wdt_stop, 1);
out:
	return ret;
}

static int __devexit acq_remove(struct platform_device *dev)
{
	misc_deregister(&acq_miscdev);
	release_region(wdt_start, 1);
	if (wdt_stop != wdt_start)
		release_region(wdt_stop, 1);

	return 0;
}

static int __init rtc_init(void)
{
	struct proc_dir_entry *ent;
#if defined(__alpha__) || defined(__mips__)
	unsigned int year, ctrl;
	char *guess = NULL;
#endif
#ifdef __sparc__
	struct linux_ebus *ebus;
	struct linux_ebus_device *edev;
#ifdef __sparc_v9__
	struct sparc_isa_bridge *isa_br;
	struct sparc_isa_device *isa_dev;
#endif
#endif

#ifdef __sparc__
	for_each_ebus(ebus) {
		for_each_ebusdev(edev, ebus) {
			if(strcmp(edev->prom_name, "rtc") == 0) {
				rtc_port = edev->resource[0].start;
				rtc_irq = edev->irqs[0];
				goto found;
			}
		}
	}
#ifdef __sparc_v9__
	for_each_isa(isa_br) {
		for_each_isadev(isa_dev, isa_br) {
			if (strcmp(isa_dev->prom_name, "rtc") == 0) {
				rtc_port = isa_dev->resource.start;
				rtc_irq = isa_dev->irq;
				goto found;
			}
		}
	}
#endif
	printk(KERN_ERR "rtc_init: no PC rtc found\n");
	return -EIO;

found:
	if (rtc_irq == PCI_IRQ_NONE) {
		rtc_has_irq = 0;
		goto no_irq;
	}

	/*
	 * XXX Interrupt pin #7 in Espresso is shared between RTC and
	 * PCI Slot 2 INTA# (and some INTx# in Slot 1).
	 */
	if (request_irq(rtc_irq, rtc_interrupt, SA_SHIRQ, "rtc", (void *)&rtc_port)) {
		/*
		 * Standard way for sparc to print irq's is to use
		 * __irq_itoa(). I think for EBus it's ok to use %d.
		 */
		printk(KERN_ERR "rtc: cannot register IRQ %d\n", rtc_irq);
		return -EIO;
	}
no_irq:
#else
	if (!request_region(RTC_PORT(0), RTC_IO_EXTENT, "rtc")) {
		printk(KERN_ERR "rtc: I/O port %d is not free.\n", RTC_PORT (0));
		return -EIO;
	}

#ifdef RTC_IRQ
	if (is_hpet_enabled()) {
		rtc_int_handler_ptr = hpet_rtc_interrupt;
	} else {
		rtc_int_handler_ptr = rtc_interrupt;
	}

	if(request_irq(RTC_IRQ, rtc_int_handler_ptr, SA_INTERRUPT, "rtc", NULL)) {
		/* Yeah right, seeing as irq 8 doesn't even hit the bus. */
		printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ);
		release_region(RTC_PORT(0), RTC_IO_EXTENT);
		return -EIO;
	}
	hpet_rtc_timer_init();

#endif

#endif /* __sparc__ vs. others */

	if (misc_register(&rtc_dev)) {
#ifdef RTC_IRQ
		free_irq(RTC_IRQ, NULL);
#endif
		release_region(RTC_PORT(0), RTC_IO_EXTENT);
		return -ENODEV;
	}

	ent = create_proc_entry("driver/rtc", 0, NULL);
	if (!ent) {
#ifdef RTC_IRQ
		free_irq(RTC_IRQ, NULL);
#endif
		release_region(RTC_PORT(0), RTC_IO_EXTENT);
		misc_deregister(&rtc_dev);
		return -ENOMEM;
//.........这里部分代码省略.........

static int ni52_probe1(struct device *dev,int ioaddr)
{
  long memaddrs[] = { 0xd0000,0xd2000,0xc8000,0xca000,0xd4000,0xd6000,0xd8000, 0 };
  int i,size;

  for(i=0;i<ETH_ALEN;i++)
    dev->dev_addr[i] = inb(dev->base_addr+i);

  if(dev->dev_addr[0] != NI52_ADDR0 || dev->dev_addr[1] != NI52_ADDR1
                                    || dev->dev_addr[2] != NI52_ADDR2)
    return ENODEV;

  printk("%s: Ni52 found at %#3lx, ",dev->name,dev->base_addr);

  request_region(ioaddr,NI52_TOTAL_SIZE,"ni52");

  dev->priv = (void *) kmalloc(sizeof(struct priv),GFP_KERNEL); 
                                  /* warning: we don't free it on errors */
  if (dev->priv == NULL)
     return -ENOMEM;
  memset((char *) dev->priv,0,sizeof(struct priv));

  /* 
   * check (or search) IO-Memory, 8K and 16K
   */
  if(dev->mem_start != 0) /* no auto-mem-probe */
  {
    size = 0x4000; /* check for 16K mem */
    if(!check586(dev,(char *) dev->mem_start,size)) {
      size = 0x2000; /* check for 8K mem */
      if(!check586(dev,(char *) dev->mem_start,size)) {
        printk("?memprobe, Can't find memory at 0x%lx!\n",dev->mem_start);
        return ENODEV;
      }
    }
  }
  else  
  {
    for(i=0;;i++)
    {
      if(!memaddrs[i]) {
        printk("?memprobe, Can't find io-memory!\n");
        return ENODEV;
      }
      dev->mem_start = memaddrs[i];
      size = 0x2000; /* check for 8K mem */
      if(check586(dev,(char *)dev->mem_start,size)) /* 8K-check */
        break;
      size = 0x4000; /* check for 16K mem */
      if(check586(dev,(char *)dev->mem_start,size)) /* 16K-check */
        break;
    }
  }
  dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */
  
  ((struct priv *) (dev->priv))->base =  dev->mem_start + size - 0x01000000;
  alloc586(dev);

  /* set number of receive-buffs according to memsize */
  if(size == 0x2000)
    ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_8;
  else
    ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_16;

  printk("Memaddr: 0x%lx, Memsize: %d, ",dev->mem_start,size);

  if(dev->irq < 2)
  {
    autoirq_setup(0);
    ni_reset586();
    ni_attn586();
    if(!(dev->irq = autoirq_report(2)))
    {
      printk("?autoirq, Failed to detect IRQ line!\n"); 
      return 1;
    }
  }
  else if(dev->irq == 2) 
    dev->irq = 9;

  printk("IRQ %d.\n",dev->irq);

  dev->open            = &ni52_open;
  dev->stop            = &ni52_close;
  dev->get_stats       = &ni52_get_stats;
  dev->hard_start_xmit = &ni52_send_packet;
  dev->set_multicast_list = &set_multicast_list;

  dev->if_port 	       = 0;

  ether_setup(dev);

  dev->tbusy = 0;
  dev->interrupt = 0;
  dev->start = 0;
  
  return 0;
}

/* initialise HIL */
static int __init
hil_keyb_init(void)
{
	unsigned char c;
	unsigned int i, kbid;
	wait_queue_head_t hil_wait;
	int err;

	if (hil_dev.dev) {
		return -ENODEV; /* already initialized */
	}

	spin_lock_init(&hil_dev.lock);
	hil_dev.dev = input_allocate_device();
	if (!hil_dev.dev)
		return -ENOMEM;

#if defined(CONFIG_HP300)
	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
		printk(KERN_ERR "HIL: hardware register was not found\n");
		err = -ENODEV;
		goto err1;
	}
	if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
		printk(KERN_ERR "HIL: IOPORT region already used\n");
		err = -EIO;
		goto err1;
	}
#endif

	err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
	if (err) {
		printk(KERN_ERR "HIL: Can't get IRQ\n");
		goto err2;
	}

	/* Turn on interrupts */
	hil_do(HIL_INTON, NULL, 0);

	/* Look for keyboards */
	hil_dev.valid = 0;	/* clear any pending data */
	hil_do(HIL_READKBDSADR, NULL, 0);

	init_waitqueue_head(&hil_wait);
	wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
	if (!hil_dev.valid) {
		printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
	}

	c = hil_dev.c;
	hil_dev.valid = 0;
	if (c == 0) {
		kbid = -1;
		printk(KERN_WARNING "HIL: no keyboard present\n");
	} else {
		kbid = ffz(~c);
		printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid);
	}

	/* set it to raw mode */
	c = 0;
	hil_do(HIL_WRITEKBDSADR, &c, 1);

	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
		if (hphilkeyb_keycode[i] != KEY_RESERVED)
			set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);

	hil_dev.dev->evbit[0]	= BIT(EV_KEY) | BIT(EV_REP);
	hil_dev.dev->ledbit[0]	= BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
	hil_dev.dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
	hil_dev.dev->keycodesize= sizeof(hphilkeyb_keycode[0]);
	hil_dev.dev->keycode	= hphilkeyb_keycode;
	hil_dev.dev->name	= "HIL keyboard";
	hil_dev.dev->phys	= "hpkbd/input0";

	hil_dev.dev->id.bustype	= BUS_HIL;
	hil_dev.dev->id.vendor	= PCI_VENDOR_ID_HP;
	hil_dev.dev->id.product	= 0x0001;
	hil_dev.dev->id.version	= 0x0010;

	err = input_register_device(hil_dev.dev);
	if (err) {
		printk(KERN_ERR "HIL: Can't register device\n");
		goto err3;
	}
	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
	       hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);

	return 0;

err3:
	hil_do(HIL_INTOFF, NULL, 0);
	disable_irq(HIL_IRQ);
	free_irq(HIL_IRQ, hil_dev.dev_id);
err2:
#if defined(CONFIG_HP300)
	release_region(HILBASE + HIL_DATA, 2);
err1:
#endif
//.........这里部分代码省略.........

static int __init pc8736x_gpio_init(void)
{
	int rc;
	dev_t devid;

	pdev = platform_device_alloc(DEVNAME, 0);
	if (!pdev)
		return -ENOMEM;

	rc = platform_device_add(pdev);
	if (rc) {
		rc = -ENODEV;
		goto undo_platform_dev_alloc;
	}
	dev_info(&pdev->dev, "NatSemi pc8736x GPIO Driver Initializing\n");

	if (!pc8736x_superio_present()) {
		rc = -ENODEV;
		dev_err(&pdev->dev, "no device found\n");
		goto undo_platform_dev_add;
	}
	pc8736x_gpio_ops.dev = &pdev->dev;

	/* Verify that chip and it's GPIO unit are both enabled.
	   My BIOS does this, so I take minimum action here
	 */
	rc = superio_inb(SIO_CF1);
	if (!(rc & 0x01)) {
		rc = -ENODEV;
		dev_err(&pdev->dev, "device not enabled\n");
		goto undo_platform_dev_add;
	}
	device_select(SIO_GPIO_UNIT);
	if (!superio_inb(SIO_UNIT_ACT)) {
		rc = -ENODEV;
		dev_err(&pdev->dev, "GPIO unit not enabled\n");
		goto undo_platform_dev_add;
	}

	/* read the GPIO unit base addr that chip responds to */
	pc8736x_gpio_base = (superio_inb(SIO_BASE_HADDR) << 8
			     | superio_inb(SIO_BASE_LADDR));

	if (!request_region(pc8736x_gpio_base, PC8736X_GPIO_RANGE, DEVNAME)) {
		rc = -ENODEV;
		dev_err(&pdev->dev, "GPIO ioport %x busy\n",
			pc8736x_gpio_base);
		goto undo_platform_dev_add;
	}
	dev_info(&pdev->dev, "GPIO ioport %x reserved\n", pc8736x_gpio_base);

	if (major) {
		devid = MKDEV(major, 0);
		rc = register_chrdev_region(devid, PC8736X_GPIO_CT, DEVNAME);
	} else {
		rc = alloc_chrdev_region(&devid, 0, PC8736X_GPIO_CT, DEVNAME);
		major = MAJOR(devid);
	}

	if (rc < 0) {
		dev_err(&pdev->dev, "register-chrdev failed: %d\n", rc);
		goto undo_request_region;
	}
	if (!major) {
		major = rc;
		dev_dbg(&pdev->dev, "got dynamic major %d\n", major);
	}

	pc8736x_init_shadow();

	/* ignore minor errs, and succeed */
	cdev_init(&pc8736x_gpio_cdev, &pc8736x_gpio_fileops);
	cdev_add(&pc8736x_gpio_cdev, devid, PC8736X_GPIO_CT);

	return 0;

undo_request_region:
	release_region(pc8736x_gpio_base, PC8736X_GPIO_RANGE);
undo_platform_dev_add:
	platform_device_del(pdev);
undo_platform_dev_alloc:
	platform_device_put(pdev);

	return rc;
}

//.........这里部分代码省略.........
	clear_bit(0, &wdt_is_open);
	return 0;
}

/*
 *	Notifier for system down
 */

static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
	void *unused)
{
	if (code == SYS_DOWN || code == SYS_HALT)
		wdt_disable();	/* Turn the WDT off */

	return NOTIFY_DONE;
}

/*
 *	Kernel Interfaces
 */

static const struct file_operations wdt_fops = {
	.owner		= THIS_MODULE,
	.llseek		= no_llseek,
	.write		= wdt_write,
	.unlocked_ioctl	= wdt_ioctl,
	.open		= wdt_open,
	.release	= wdt_close,
};

static struct miscdevice wdt_miscdev = {
	.minor = WATCHDOG_MINOR,
	.name = "watchdog",
	.fops = &wdt_fops,
};

/*
 *	The WDT needs to learn about soft shutdowns in order to
 *	turn the timebomb registers off.
 */

static struct notifier_block wdt_notifier = {
	.notifier_call = wdt_notify_sys,
};

static int __init wdt_init(void)
{
	int ret;

	printk(KERN_INFO "WDT driver for the Winbond(TM) W83697UG/UF Super I/O chip initialising.\n");

	if (wdt_set_heartbeat(timeout)) {
		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
		printk(KERN_INFO PFX
			"timeout value must be 1<=timeout<=255, using %d\n",
			WATCHDOG_TIMEOUT);
	}

	if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
		printk(KERN_ERR PFX "I/O address 0x%04x already in use\n",
			wdt_io);
		ret = -EIO;
		goto out;
	}

	w83697ug_init();

	ret = register_reboot_notifier(&wdt_notifier);
	if (ret != 0) {
		printk(KERN_ERR PFX
			"cannot register reboot notifier (err=%d)\n", ret);
		goto unreg_regions;
	}

	ret = misc_register(&wdt_miscdev);
	if (ret != 0) {
		printk(KERN_ERR PFX
			"cannot register miscdev on minor=%d (err=%d)\n",
			WATCHDOG_MINOR, ret);
		goto unreg_reboot;
	}

	printk(KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n",
		timeout, nowayout);

out:
	return ret;
unreg_reboot:
	unregister_reboot_notifier(&wdt_notifier);
unreg_regions:
	release_region(wdt_io, 1);
	goto out;
}

static void __exit wdt_exit(void)
{
	misc_deregister(&wdt_miscdev);
	unregister_reboot_notifier