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/*
* linux/drivers/ide/arm/rapide.c
*
* Copyright (c) 1996-2002 Russell King.
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/errno.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <asm/ecard.h>
/*
* Something like this really should be in generic code, but isn't.
*/
static ide_hwif_t *
rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq)
{
unsigned long port = (unsigned long)base;
ide_hwif_t *hwif;
int index, i;
for (index = 0; index < MAX_HWIFS; ++index) {
hwif = ide_hwifs + index;
if (hwif->io_ports[IDE_DATA_OFFSET] == port)
goto found;
}
for (index = 0; index < MAX_HWIFS; ++index) {
hwif = ide_hwifs + index;
if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
goto found;
}
return NULL;
found:
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
hwif->hw.io_ports[i] = port;
hwif->io_ports[i] = port;
port += sz;
}
hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
hwif->hw.irq = hwif->irq = irq;
hwif->mmio = 1;
default_hwif_mmiops(hwif);
return hwif;
}
static int __devinit
rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
{
ide_hwif_t *hwif;
void __iomem *base;
int ret;
ret = ecard_request_resources(ec);
if (ret)
goto out;
base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
ecard_resource_len(ec, ECARD_RES_MEMC));
if (!base) {
ret = -ENOMEM;
goto release;
}
hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq);
if (hwif) {
hwif->hwif_data = base;
hwif->gendev.parent = &ec->dev;
hwif->noprobe = 0;
probe_hwif_init(hwif);
ide_proc_register_port(hwif);
ecard_set_drvdata(ec, hwif);
goto out;
}
iounmap(base);
release:
ecard_release_resources(ec);
out:
return ret;
}
static void __devexit rapide_remove(struct expansion_card *ec)
{
ide_hwif_t *hwif = ecard_get_drvdata(ec);
ecard_set_drvdata(ec, NULL);
/* there must be a better way */
ide_unregister(hwif - ide_hwifs);
iounmap(hwif->hwif_data);
ecard_release_resources(ec);
}
static struct ecard_id rapide_ids[] = {
{ MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
{ 0xffff, 0xffff }
};
static struct ecard_driver rapide_driver = {
.probe = rapide_probe,
.remove = __devexit_p(rapide_remove),
.id_table = rapide_ids,
.drv = {
.name = "rapide",
},
};
static int __init rapide_init(void)
{
return ecard_register_driver(&rapide_driver);
}
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
module_init(rapide_init);
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