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linux/drivers/ide/pci/aec62xx.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

486 lines
13 KiB
C
Raw Blame History

/*
* 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/config.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 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 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)))
#if 0
if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
(void) pci_read_config_byte(dev, 0x54, &art);
p += sprintf(p, "DMA Mode: %s(%s)",
(c0&0x20)?((art&0x03)?"UDMA":" DMA"):" PIO",
(art&0x02)?"2":(art&0x01)?"1":"0");
p += sprintf(p, " %s(%s)",
(c0&0x40)?((art&0x0c)?"UDMA":" DMA"):" PIO",
(art&0x08)?"2":(art&0x04)?"1":"0");
p += sprintf(p, " %s(%s)",
(c1&0x20)?((art&0x30)?"UDMA":" DMA"):" PIO",
(art&0x20)?"2":(art&0x10)?"1":"0");
p += sprintf(p, " %s(%s)\n",
(c1&0x40)?((art&0xc0)?"UDMA":" DMA"):" PIO",
(art&0x80)?"2":(art&0x40)?"1":"0");
} else {
#endif
/*
* 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:
#if 0
mode = (hwif->INB(hwif->dma_master) & 0x10) ? 4 : 3;
#else
mode = (hwif->INB(((hwif->channel) ?
hwif->mate->dma_status :
hwif->dma_status)) & 0x10) ? 4 : 3;
#endif
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 ");
#if 0
{
int i = 0;
u8 reg49h = 0;
pci_read_config_byte(HWIF(drive)->pci_dev, 0x49, &reg49h);
for (i=0;i<256;i++)
pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h|0x10);
pci_write_config_byte(HWIF(drive)->pci_dev, 0x49, reg49h & ~0x10);
}
return 0;
#endif
default:
break;
}
#if 0
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
u8 tmp1 = 0, tmp2 = 0, mode6 = 0;
pci_read_config_byte(dev, 0x44, &tmp1);
pci_read_config_byte(dev, 0x45, &tmp2);
printk(" AEC6280 r44=%x r45=%x ",tmp1,tmp2);
mode6 = HWIF(drive)->INB(((hwif->channel) ?
hwif->mate->dma_status :
hwif->dma_status));
printk(" AEC6280 133=%x ", (mode6 & 0x10));
}
#endif
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, 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);
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 struct pci_device_id aec62xx_pci_tbl[] = {
{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 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");
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