drivers/ide/pci/aec62xx.c - kernel/panda - Git at Google

 /*
  * linux/drivers/ide/pci/aec62xx.c		Version 0.11	March 27, 2002
  *
  * Copyright (C) 1999-2002	Andre Hedrick <andre@linux-ide.org>
  *
  */

 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/hdreg.h>
 #include <linux/ide.h>
 #include <linux/init.h>

 #include <asm/io.h>

 struct chipset_bus_clock_list_entry {
 	u8 xfer_speed;
 	u8 chipset_settings;
 	u8 ultra_settings;
 };

 static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
 	{	XFER_UDMA_6,	0x31,	0x07	},
 	{	XFER_UDMA_5,	0x31,	0x06	},
 	{	XFER_UDMA_4,	0x31,	0x05	},
 	{	XFER_UDMA_3,	0x31,	0x04	},
 	{	XFER_UDMA_2,	0x31,	0x03	},
 	{	XFER_UDMA_1,	0x31,	0x02	},
 	{	XFER_UDMA_0,	0x31,	0x01	},

 	{	XFER_MW_DMA_2,	0x31,	0x00	},
 	{	XFER_MW_DMA_1,	0x31,	0x00	},
 	{	XFER_MW_DMA_0,	0x0a,	0x00	},
 	{	XFER_PIO_4,	0x31,	0x00	},
 	{	XFER_PIO_3,	0x33,	0x00	},
 	{	XFER_PIO_2,	0x08,	0x00	},
 	{	XFER_PIO_1,	0x0a,	0x00	},
 	{	XFER_PIO_0,	0x00,	0x00	},
 	{	0,		0x00,	0x00	}
 };

 static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
 	{	XFER_UDMA_6,	0x41,	0x06	},
 	{	XFER_UDMA_5,	0x41,	0x05	},
 	{	XFER_UDMA_4,	0x41,	0x04	},
 	{	XFER_UDMA_3,	0x41,	0x03	},
 	{	XFER_UDMA_2,	0x41,	0x02	},
 	{	XFER_UDMA_1,	0x41,	0x01	},
 	{	XFER_UDMA_0,	0x41,	0x01	},

 	{	XFER_MW_DMA_2,	0x41,	0x00	},
 	{	XFER_MW_DMA_1,	0x42,	0x00	},
 	{	XFER_MW_DMA_0,	0x7a,	0x00	},
 	{	XFER_PIO_4,	0x41,	0x00	},
 	{	XFER_PIO_3,	0x43,	0x00	},
 	{	XFER_PIO_2,	0x78,	0x00	},
 	{	XFER_PIO_1,	0x7a,	0x00	},
 	{	XFER_PIO_0,	0x70,	0x00	},
 	{	0,		0x00,	0x00	}
 };

 #define BUSCLOCK(D)	\
 	((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))


 /*
  * TO DO: active tuning and correction of cards without a bios.
  */
 static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
 {
 	for ( ; chipset_table->xfer_speed ; chipset_table++)
 		if (chipset_table->xfer_speed == speed) {
 			return chipset_table->chipset_settings;
 		}
 	return chipset_table->chipset_settings;
 }

 static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
 {
 	for ( ; chipset_table->xfer_speed ; chipset_table++)
 		if (chipset_table->xfer_speed == speed) {
 			return chipset_table->ultra_settings;
 		}
 	return chipset_table->ultra_settings;
 }

 static u8 aec62xx_ratemask (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	u8 mode;

 	switch(hwif->pci_dev->device) {
 		case PCI_DEVICE_ID_ARTOP_ATP865:
 		case PCI_DEVICE_ID_ARTOP_ATP865R:
 			mode = (hwif->INB(((hwif->channel) ?
 					hwif->mate->dma_status :
 					hwif->dma_status)) & 0x10) ? 4 : 3;
 			break;
 		case PCI_DEVICE_ID_ARTOP_ATP860:
 		case PCI_DEVICE_ID_ARTOP_ATP860R:
 			mode = 2;
 			break;
 		case PCI_DEVICE_ID_ARTOP_ATP850UF:
 		default:
 			return 1;
 	}

 	if (!eighty_ninty_three(drive))
 		mode = min(mode, (u8)1);
 	return mode;
 }

 static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct pci_dev *dev	= hwif->pci_dev;
 	u16 d_conf		= 0;
 	u8 speed	= ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
 	u8 ultra = 0, ultra_conf = 0;
 	u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
 	unsigned long flags;

 	local_irq_save(flags);
 	/* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
 	pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
 	tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
 	d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
 	pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);

 	tmp1 = 0x00;
 	tmp2 = 0x00;
 	pci_read_config_byte(dev, 0x54, &ultra);
 	tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
 	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
 	tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
 	pci_write_config_byte(dev, 0x54, tmp2);
 	local_irq_restore(flags);
 	return(ide_config_drive_speed(drive, speed));
 }

 static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct pci_dev *dev	= hwif->pci_dev;
 	u8 speed	= ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
 	u8 unit		= (drive->select.b.unit & 0x01);
 	u8 tmp1 = 0, tmp2 = 0;
 	u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
 	unsigned long flags;

 	local_irq_save(flags);
 	/* high 4-bits: Active, low 4-bits: Recovery */
 	pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
 	drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
 	pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);

 	pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
 	tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
 	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
 	tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
 	pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
 	local_irq_restore(flags);
 	return(ide_config_drive_speed(drive, speed));
 }

 static int aec62xx_tune_chipset (ide_drive_t *drive, u8 speed)
 {
 	switch (HWIF(drive)->pci_dev->device) {
 		case PCI_DEVICE_ID_ARTOP_ATP865:
 		case PCI_DEVICE_ID_ARTOP_ATP865R:
 		case PCI_DEVICE_ID_ARTOP_ATP860:
 		case PCI_DEVICE_ID_ARTOP_ATP860R:
 			return ((int) aec6260_tune_chipset(drive, speed));
 		case PCI_DEVICE_ID_ARTOP_ATP850UF:
 			return ((int) aec6210_tune_chipset(drive, speed));
 		default:
 			return -1;
 	}
 }

 static int config_chipset_for_dma (ide_drive_t *drive)
 {
 	u8 speed = ide_dma_speed(drive, aec62xx_ratemask(drive));

 	if (!(speed))
 		return 0;

 	(void) aec62xx_tune_chipset(drive, speed);
 	return ide_dma_enable(drive);
 }

 static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
 {
 	u8 speed = 0;
 	u8 new_pio = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);

 	switch(pio) {
 		case 5:		speed = new_pio; break;
 		case 4:		speed = XFER_PIO_4; break;
 		case 3:		speed = XFER_PIO_3; break;
 		case 2:		speed = XFER_PIO_2; break;
 		case 1:		speed = XFER_PIO_1; break;
 		default:	speed = XFER_PIO_0; break;
 	}
 	(void) aec62xx_tune_chipset(drive, speed);
 }

 static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct hd_driveid *id	= drive->id;

 	if ((id->capability & 1) && drive->autodma) {

 		if (ide_use_dma(drive)) {
 			if (config_chipset_for_dma(drive))
 				return hwif->ide_dma_on(drive);
 		}

 		goto fast_ata_pio;

 	} else if ((id->capability & 8) || (id->field_valid & 2)) {
 fast_ata_pio:
 		aec62xx_tune_drive(drive, 5);
 		return hwif->ide_dma_off_quietly(drive);
 	}
 	/* IORDY not supported */
 	return 0;
 }

 static int aec62xx_irq_timeout (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct pci_dev *dev	= hwif->pci_dev;

 	switch(dev->device) {
 		case PCI_DEVICE_ID_ARTOP_ATP860:
 		case PCI_DEVICE_ID_ARTOP_ATP860R:
 		case PCI_DEVICE_ID_ARTOP_ATP865:
 		case PCI_DEVICE_ID_ARTOP_ATP865R:
 			printk(" AEC62XX time out ");
 		default:
 			break;
 	}
 	return 0;
 }

 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
 {
 	int bus_speed = system_bus_clock();

 	if (dev->resource[PCI_ROM_RESOURCE].start) {
 		pci_write_config_dword(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 		printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
 			(unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
 	}

 	if (bus_speed <= 33)
 		pci_set_drvdata(dev, (void *) aec6xxx_33_base);
 	else
 		pci_set_drvdata(dev, (void *) aec6xxx_34_base);

 	/* These are necessary to get AEC6280 Macintosh cards to work */
 	if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
 	    (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
 		u8 reg49h = 0, reg4ah = 0;
 		/* Clear reset and test bits.  */
 		pci_read_config_byte(dev, 0x49, &reg49h);
 		pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
 		/* Enable chip interrupt output.  */
 		pci_read_config_byte(dev, 0x4a, &reg4ah);
 		pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
 		/* Enable burst mode. */
 		pci_read_config_byte(dev, 0x4a, &reg4ah);
 		pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
 	}

 	return dev->irq;
 }

 static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
 {
 	hwif->autodma = 0;
 	hwif->tuneproc = &aec62xx_tune_drive;
 	hwif->speedproc = &aec62xx_tune_chipset;

 	if (hwif->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
 		hwif->serialized = hwif->channel;
 		hwif->no_dsc = 1;
 	}

 	if (hwif->mate)
 		hwif->mate->serialized = hwif->serialized;

 	if (!hwif->dma_base) {
 		hwif->drives[0].autotune = 1;
 		hwif->drives[1].autotune = 1;
 		return;
 	}

 	hwif->ultra_mask = 0x7f;
 	hwif->mwdma_mask = 0x07;
 	hwif->swdma_mask = 0x07;

 	hwif->ide_dma_check	= &aec62xx_config_drive_xfer_rate;
 	hwif->ide_dma_lostirq	= &aec62xx_irq_timeout;
 	hwif->ide_dma_timeout	= &aec62xx_irq_timeout;
 	if (!noautodma)
 		hwif->autodma = 1;
 	hwif->drives[0].autodma = hwif->autodma;
 	hwif->drives[1].autodma = hwif->autodma;
 }

 static void __devinit init_dma_aec62xx(ide_hwif_t *hwif, unsigned long dmabase)
 {
 	struct pci_dev *dev	= hwif->pci_dev;

 	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
 		u8 reg54h = 0;
 		unsigned long flags;

 		spin_lock_irqsave(&ide_lock, flags);
 		pci_read_config_byte(dev, 0x54, &reg54h);
 		pci_write_config_byte(dev, 0x54, reg54h & ~(hwif->channel ? 0xF0 : 0x0F));
 		spin_unlock_irqrestore(&ide_lock, flags);
 	} else {
 		u8 ata66	= 0;
 		pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
 	        if (!(hwif->udma_four))
 			hwif->udma_four = (ata66&(hwif->channel?0x02:0x01))?0:1;
 	}

 	ide_setup_dma(hwif, dmabase, 8);
 }

 static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d)
 {
 	return ide_setup_pci_device(dev, d);
 }

 static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d)
 {
 	unsigned long bar4reg = pci_resource_start(dev, 4);

 	if (inb(bar4reg+2) & 0x10) {
 		strcpy(d->name, "AEC6880");
 		if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
 			strcpy(d->name, "AEC6880R");
 	} else {
 		strcpy(d->name, "AEC6280");
 		if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
 			strcpy(d->name, "AEC6280R");
 	}

 	return ide_setup_pci_device(dev, d);
 }

 static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
 	{	/* 0 */
 		.name		= "AEC6210",
 		.init_setup	= init_setup_aec62xx,
 		.init_chipset	= init_chipset_aec62xx,
 		.init_hwif	= init_hwif_aec62xx,
 		.init_dma	= init_dma_aec62xx,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
 		.bootable	= OFF_BOARD,
 	},{	/* 1 */
 		.name		= "AEC6260",
 		.init_setup	= init_setup_aec62xx,
 		.init_chipset	= init_chipset_aec62xx,
 		.init_hwif	= init_hwif_aec62xx,
 		.init_dma	= init_dma_aec62xx,
 		.channels	= 2,
 		.autodma	= NOAUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 2 */
 		.name		= "AEC6260R",
 		.init_setup	= init_setup_aec62xx,
 		.init_chipset	= init_chipset_aec62xx,
 		.init_hwif	= init_hwif_aec62xx,
 		.init_dma	= init_dma_aec62xx,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
 		.bootable	= NEVER_BOARD,
 	},{	/* 3 */
 		.name		= "AEC6X80",
 		.init_setup	= init_setup_aec6x80,
 		.init_chipset	= init_chipset_aec62xx,
 		.init_hwif	= init_hwif_aec62xx,
 		.init_dma	= init_dma_aec62xx,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 4 */
 		.name		= "AEC6X80R",
 		.init_setup	= init_setup_aec6x80,
 		.init_chipset	= init_chipset_aec62xx,
 		.init_hwif	= init_hwif_aec62xx,
 		.init_dma	= init_dma_aec62xx,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
 		.bootable	= OFF_BOARD,
 	}
 };

 /**
  *	aec62xx_init_one	-	called when a AEC is found
  *	@dev: the aec62xx device
  *	@id: the matching pci id
  *
  *	Called when the PCI registration layer (or the IDE initialization)
  *	finds a device matching our IDE device tables.
  */

 static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	ide_pci_device_t *d = &aec62xx_chipsets[id->driver_data];

 	return d->init_setup(dev, d);
 }

 static const struct pci_device_id aec62xx_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
 	{ 0, },
 };
 MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);

 static struct pci_driver driver = {
 	.name		= "AEC62xx_IDE",
 	.id_table	= aec62xx_pci_tbl,
 	.probe		= aec62xx_init_one,
 };

 static int aec62xx_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }

 module_init(aec62xx_ide_init);

 MODULE_AUTHOR("Andre Hedrick");
 MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
 MODULE_LICENSE("GPL");
	/*
	* linux/drivers/ide/pci/aec62xx.c Version 0.11 March 27, 2002
	*
	* Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
	*
	*/

	#include <linux/module.h>
	#include <linux/types.h>
	#include <linux/pci.h>
	#include <linux/delay.h>
	#include <linux/hdreg.h>
	#include <linux/ide.h>
	#include <linux/init.h>

	#include <asm/io.h>

	struct chipset_bus_clock_list_entry {
	u8 xfer_speed;
	u8 chipset_settings;
	u8 ultra_settings;
	};

	static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
	{ XFER_UDMA_6, 0x31, 0x07 },
	{ XFER_UDMA_5, 0x31, 0x06 },
	{ XFER_UDMA_4, 0x31, 0x05 },
	{ XFER_UDMA_3, 0x31, 0x04 },
	{ XFER_UDMA_2, 0x31, 0x03 },
	{ XFER_UDMA_1, 0x31, 0x02 },
	{ XFER_UDMA_0, 0x31, 0x01 },

	{ XFER_MW_DMA_2, 0x31, 0x00 },
	{ XFER_MW_DMA_1, 0x31, 0x00 },
	{ XFER_MW_DMA_0, 0x0a, 0x00 },
	{ XFER_PIO_4, 0x31, 0x00 },
	{ XFER_PIO_3, 0x33, 0x00 },
	{ XFER_PIO_2, 0x08, 0x00 },
	{ XFER_PIO_1, 0x0a, 0x00 },
	{ XFER_PIO_0, 0x00, 0x00 },
	{ 0, 0x00, 0x00 }
	};

	static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
	{ XFER_UDMA_6, 0x41, 0x06 },
	{ XFER_UDMA_5, 0x41, 0x05 },
	{ XFER_UDMA_4, 0x41, 0x04 },
	{ XFER_UDMA_3, 0x41, 0x03 },
	{ XFER_UDMA_2, 0x41, 0x02 },
	{ XFER_UDMA_1, 0x41, 0x01 },
	{ XFER_UDMA_0, 0x41, 0x01 },

	{ XFER_MW_DMA_2, 0x41, 0x00 },
	{ XFER_MW_DMA_1, 0x42, 0x00 },
	{ XFER_MW_DMA_0, 0x7a, 0x00 },
	{ XFER_PIO_4, 0x41, 0x00 },
	{ XFER_PIO_3, 0x43, 0x00 },
	{ XFER_PIO_2, 0x78, 0x00 },
	{ XFER_PIO_1, 0x7a, 0x00 },
	{ XFER_PIO_0, 0x70, 0x00 },
	{ 0, 0x00, 0x00 }
	};

	#define BUSCLOCK(D) \
	((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))


	/*
	* TO DO: active tuning and correction of cards without a bios.
	*/
	static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
	{
	for ( ; chipset_table->xfer_speed ; chipset_table++)
	if (chipset_table->xfer_speed == speed) {
	return chipset_table->chipset_settings;
	}
	return chipset_table->chipset_settings;
	}

	static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
	{
	for ( ; chipset_table->xfer_speed ; chipset_table++)
	if (chipset_table->xfer_speed == speed) {
	return chipset_table->ultra_settings;
	}
	return chipset_table->ultra_settings;
	}

	static u8 aec62xx_ratemask (ide_drive_t *drive)
	{
	ide_hwif_t *hwif = HWIF(drive);
	u8 mode;

	switch(hwif->pci_dev->device) {
	case PCI_DEVICE_ID_ARTOP_ATP865:
	case PCI_DEVICE_ID_ARTOP_ATP865R:
	mode = (hwif->INB(((hwif->channel) ?
	hwif->mate->dma_status :
	hwif->dma_status)) & 0x10) ? 4 : 3;
	break;
	case PCI_DEVICE_ID_ARTOP_ATP860:
	case PCI_DEVICE_ID_ARTOP_ATP860R:
	mode = 2;
	break;
	case PCI_DEVICE_ID_ARTOP_ATP850UF:
	default:
	return 1;
	}

	if (!eighty_ninty_three(drive))
	mode = min(mode, (u8)1);
	return mode;
	}

	static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
	{
	ide_hwif_t *hwif = HWIF(drive);
	struct pci_dev *dev = hwif->pci_dev;
	u16 d_conf = 0;
	u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
	u8 ultra = 0, ultra_conf = 0;
	u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
	unsigned long flags;

	local_irq_save(flags);
	/* 0x40\|(2drive->dn): Active, 0x41\|(2drive->dn): Recovery */
	pci_read_config_word(dev, 0x40\|(2*drive->dn), &d_conf);
	tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
	d_conf = ((tmp0 & 0xf0) << 4) \| (tmp0 & 0xf);
	pci_write_config_word(dev, 0x40\|(2*drive->dn), d_conf);

	tmp1 = 0x00;
	tmp2 = 0x00;
	pci_read_config_byte(dev, 0x54, &ultra);
	tmp1 = ((0x00 << (2drive->dn)) \| (ultra & ~(3 << (2drive->dn))));
	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
	tmp2 = ((ultra_conf << (2drive->dn)) \| (tmp1 & ~(3 << (2drive->dn))));
	pci_write_config_byte(dev, 0x54, tmp2);
	local_irq_restore(flags);
	return(ide_config_drive_speed(drive, speed));
	}

	static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
	{
	ide_hwif_t *hwif = HWIF(drive);
	struct pci_dev *dev = hwif->pci_dev;
	u8 speed = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
	u8 unit = (drive->select.b.unit & 0x01);
	u8 tmp1 = 0, tmp2 = 0;
	u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
	unsigned long flags;

	local_irq_save(flags);
	/* high 4-bits: Active, low 4-bits: Recovery */
	pci_read_config_byte(dev, 0x40\|drive->dn, &drive_conf);
	drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
	pci_write_config_byte(dev, 0x40\|drive->dn, drive_conf);

	pci_read_config_byte(dev, (0x44\|hwif->channel), &ultra);
	tmp1 = ((0x00 << (4unit)) \| (ultra & ~(7 << (4unit))));
	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
	tmp2 = ((ultra_conf << (4unit)) \| (tmp1 & ~(7 << (4unit))));
	pci_write_config_byte(dev, (0x44\|hwif->channel), tmp2);
	local_irq_restore(flags);
	return(ide_config_drive_speed(drive, speed));
	}

	static int aec62xx_tune_chipset (ide_drive_t *drive, u8 speed)
	{
	switch (HWIF(drive)->pci_dev->device) {
	case PCI_DEVICE_ID_ARTOP_ATP865:
	case PCI_DEVICE_ID_ARTOP_ATP865R:
	case PCI_DEVICE_ID_ARTOP_ATP860:
	case PCI_DEVICE_ID_ARTOP_ATP860R:
	return ((int) aec6260_tune_chipset(drive, speed));
	case PCI_DEVICE_ID_ARTOP_ATP850UF:
	return ((int) aec6210_tune_chipset(drive, speed));
	default:
	return -1;
	}
	}

	static int config_chipset_for_dma (ide_drive_t *drive)
	{
	u8 speed = ide_dma_speed(drive, aec62xx_ratemask(drive));

	if (!(speed))
	return 0;

	(void) aec62xx_tune_chipset(drive, speed);
	return ide_dma_enable(drive);
	}

	static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
	{
	u8 speed = 0;
	u8 new_pio = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);

	switch(pio) {
	case 5: speed = new_pio; break;
	case 4: speed = XFER_PIO_4; break;
	case 3: speed = XFER_PIO_3; break;
	case 2: speed = XFER_PIO_2; break;
	case 1: speed = XFER_PIO_1; break;
	default: speed = XFER_PIO_0; break;
	}
	(void) aec62xx_tune_chipset(drive, speed);
	}

	static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
	{
	ide_hwif_t *hwif = HWIF(drive);
	struct hd_driveid *id = drive->id;

	if ((id->capability & 1) && drive->autodma) {

	if (ide_use_dma(drive)) {
	if (config_chipset_for_dma(drive))
	return hwif->ide_dma_on(drive);
	}

	goto fast_ata_pio;

	} else if ((id->capability & 8) \|\| (id->field_valid & 2)) {
	fast_ata_pio:
	aec62xx_tune_drive(drive, 5);
	return hwif->ide_dma_off_quietly(drive);
	}
	/* IORDY not supported */
	return 0;
	}

	static int aec62xx_irq_timeout (ide_drive_t *drive)
	{
	ide_hwif_t *hwif = HWIF(drive);
	struct pci_dev *dev = hwif->pci_dev;

	switch(dev->device) {
	case PCI_DEVICE_ID_ARTOP_ATP860:
	case PCI_DEVICE_ID_ARTOP_ATP860R:
	case PCI_DEVICE_ID_ARTOP_ATP865:
	case PCI_DEVICE_ID_ARTOP_ATP865R:
	printk(" AEC62XX time out ");
	default:
	break;
	}
	return 0;
	}

	static unsigned int __devinit init_chipset_aec62xx(struct pci_dev dev, const char name)
	{
	int bus_speed = system_bus_clock();

	if (dev->resource[PCI_ROM_RESOURCE].start) {
	pci_write_config_dword(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start \| PCI_ROM_ADDRESS_ENABLE);
	printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
	(unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
	}

	if (bus_speed <= 33)
	pci_set_drvdata(dev, (void *) aec6xxx_33_base);
	else
	pci_set_drvdata(dev, (void *) aec6xxx_34_base);

	/* These are necessary to get AEC6280 Macintosh cards to work */
	if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) \|\|
	(dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
	u8 reg49h = 0, reg4ah = 0;
	/* Clear reset and test bits. */
	pci_read_config_byte(dev, 0x49, &reg49h);
	pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
	/* Enable chip interrupt output. */
	pci_read_config_byte(dev, 0x4a, &reg4ah);
	pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
	/* Enable burst mode. */
	pci_read_config_byte(dev, 0x4a, &reg4ah);
	pci_write_config_byte(dev, 0x4a, reg4ah \| 0x80);
	}

	return dev->irq;
	}

	static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
	{
	hwif->autodma = 0;
	hwif->tuneproc = &aec62xx_tune_drive;
	hwif->speedproc = &aec62xx_tune_chipset;

	if (hwif->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
	hwif->serialized = hwif->channel;
	hwif->no_dsc = 1;
	}

	if (hwif->mate)
	hwif->mate->serialized = hwif->serialized;

	if (!hwif->dma_base) {
	hwif->drives[0].autotune = 1;
	hwif->drives[1].autotune = 1;
	return;
	}

	hwif->ultra_mask = 0x7f;
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;

	hwif->ide_dma_check = &aec62xx_config_drive_xfer_rate;
	hwif->ide_dma_lostirq = &aec62xx_irq_timeout;
	hwif->ide_dma_timeout = &aec62xx_irq_timeout;
	if (!noautodma)
	hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->autodma;
	hwif->drives[1].autodma = hwif->autodma;
	}

	static void __devinit init_dma_aec62xx(ide_hwif_t *hwif, unsigned long dmabase)
	{
	struct pci_dev *dev = hwif->pci_dev;

	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
	u8 reg54h = 0;
	unsigned long flags;

	spin_lock_irqsave(&ide_lock, flags);
	pci_read_config_byte(dev, 0x54, &reg54h);
	pci_write_config_byte(dev, 0x54, reg54h & ~(hwif->channel ? 0xF0 : 0x0F));
	spin_unlock_irqrestore(&ide_lock, flags);
	} else {
	u8 ata66 = 0;
	pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
	if (!(hwif->udma_four))
	hwif->udma_four = (ata66&(hwif->channel?0x02:0x01))?0:1;
	}

	ide_setup_dma(hwif, dmabase, 8);
	}

	static int __devinit init_setup_aec62xx(struct pci_dev dev, ide_pci_device_t d)
	{
	return ide_setup_pci_device(dev, d);
	}

	static int __devinit init_setup_aec6x80(struct pci_dev dev, ide_pci_device_t d)
	{
	unsigned long bar4reg = pci_resource_start(dev, 4);

	if (inb(bar4reg+2) & 0x10) {
	strcpy(d->name, "AEC6880");
	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
	strcpy(d->name, "AEC6880R");
	} else {
	strcpy(d->name, "AEC6280");
	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)
	strcpy(d->name, "AEC6280R");
	}

	return ide_setup_pci_device(dev, d);
	}

	static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
	{ /* 0 */
	.name = "AEC6210",
	.init_setup = init_setup_aec62xx,
	.init_chipset = init_chipset_aec62xx,
	.init_hwif = init_hwif_aec62xx,
	.init_dma = init_dma_aec62xx,
	.channels = 2,
	.autodma = AUTODMA,
	.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
	.bootable = OFF_BOARD,
	},{ /* 1 */
	.name = "AEC6260",
	.init_setup = init_setup_aec62xx,
	.init_chipset = init_chipset_aec62xx,
	.init_hwif = init_hwif_aec62xx,
	.init_dma = init_dma_aec62xx,
	.channels = 2,
	.autodma = NOAUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 2 */
	.name = "AEC6260R",
	.init_setup = init_setup_aec62xx,
	.init_chipset = init_chipset_aec62xx,
	.init_hwif = init_hwif_aec62xx,
	.init_dma = init_dma_aec62xx,
	.channels = 2,
	.autodma = AUTODMA,
	.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
	.bootable = NEVER_BOARD,
	},{ /* 3 */
	.name = "AEC6X80",
	.init_setup = init_setup_aec6x80,
	.init_chipset = init_chipset_aec62xx,
	.init_hwif = init_hwif_aec62xx,
	.init_dma = init_dma_aec62xx,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 4 */
	.name = "AEC6X80R",
	.init_setup = init_setup_aec6x80,
	.init_chipset = init_chipset_aec62xx,
	.init_hwif = init_hwif_aec62xx,
	.init_dma = init_dma_aec62xx,
	.channels = 2,
	.autodma = AUTODMA,
	.enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
	.bootable = OFF_BOARD,
	}
	};

	/**
	* aec62xx_init_one - called when a AEC is found
	* @dev: the aec62xx device
	* @id: the matching pci id
	*
	* Called when the PCI registration layer (or the IDE initialization)
	* finds a device matching our IDE device tables.
	*/

	static int __devinit aec62xx_init_one(struct pci_dev dev, const struct pci_device_id id)
	{
	ide_pci_device_t *d = &aec62xx_chipsets[id->driver_data];

	return d->init_setup(dev, d);
	}

	static const struct pci_device_id aec62xx_pci_tbl[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
	{ 0, },
	};
	MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);

	static struct pci_driver driver = {
	.name = "AEC62xx_IDE",
	.id_table = aec62xx_pci_tbl,
	.probe = aec62xx_init_one,
	};

	static int aec62xx_ide_init(void)
	{
	return ide_pci_register_driver(&driver);
	}

	module_init(aec62xx_ide_init);

	MODULE_AUTHOR("Andre Hedrick");
	MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
	MODULE_LICENSE("GPL");