126 lines
2.6 KiB
C
126 lines
2.6 KiB
C
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/*
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* linux/drivers/ide/arm/rapide.c
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*
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* Copyright (c) 1996-2002 Russell King.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/blkdev.h>
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#include <linux/errno.h>
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#include <linux/ide.h>
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#include <linux/init.h>
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#include <asm/ecard.h>
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/*
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* Something like this really should be in generic code, but isn't.
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*/
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static ide_hwif_t *
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rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq)
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{
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unsigned long port = (unsigned long)base;
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ide_hwif_t *hwif;
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int index, i;
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for (index = 0; index < MAX_HWIFS; ++index) {
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hwif = ide_hwifs + index;
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if (hwif->io_ports[IDE_DATA_OFFSET] == port)
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goto found;
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}
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for (index = 0; index < MAX_HWIFS; ++index) {
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hwif = ide_hwifs + index;
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if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
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goto found;
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}
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return NULL;
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found:
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for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
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hwif->hw.io_ports[i] = port;
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hwif->io_ports[i] = port;
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port += sz;
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}
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hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
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hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
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hwif->hw.irq = hwif->irq = irq;
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hwif->mmio = 2;
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default_hwif_mmiops(hwif);
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return hwif;
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}
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static int __devinit
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rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
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{
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ide_hwif_t *hwif;
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void __iomem *base;
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int ret;
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ret = ecard_request_resources(ec);
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if (ret)
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goto out;
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base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
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ecard_resource_len(ec, ECARD_RES_MEMC));
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if (!base) {
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ret = -ENOMEM;
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goto release;
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}
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hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq);
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if (hwif) {
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hwif->hwif_data = base;
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hwif->gendev.parent = &ec->dev;
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hwif->noprobe = 0;
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probe_hwif_init(hwif);
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create_proc_ide_interfaces();
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ecard_set_drvdata(ec, hwif);
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goto out;
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}
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iounmap(base);
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release:
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ecard_release_resources(ec);
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out:
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return ret;
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}
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static void __devexit rapide_remove(struct expansion_card *ec)
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{
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ide_hwif_t *hwif = ecard_get_drvdata(ec);
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ecard_set_drvdata(ec, NULL);
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/* there must be a better way */
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ide_unregister(hwif - ide_hwifs);
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iounmap(hwif->hwif_data);
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ecard_release_resources(ec);
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}
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static struct ecard_id rapide_ids[] = {
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{ MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
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{ 0xffff, 0xffff }
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};
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static struct ecard_driver rapide_driver = {
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.probe = rapide_probe,
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.remove = __devexit_p(rapide_remove),
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.id_table = rapide_ids,
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.drv = {
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.name = "rapide",
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},
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};
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static int __init rapide_init(void)
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{
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return ecard_register_driver(&rapide_driver);
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}
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
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module_init(rapide_init);
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