rapide.c

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/*
 * Copyright (c) 1996-2002 Russell King.
 */

#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/errno.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/ecard.h>

static const struct ide_port_info rapide_port_info = {
    .host_flags     = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
    .chipset        = ide_generic,
};

static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base,
                   void __iomem *ctrl, unsigned int sz, int irq)
{
    unsigned long port = (unsigned long)base;
    int i;

    for (i = 0; i <= 7; i++) {
        hw->io_ports_array[i] = port;
        port += sz;
    }
    hw->io_ports.ctl_addr = (unsigned long)ctrl;
    hw->irq = irq;
}

static int __devinit
rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
{
    void __iomem *base;
    struct ide_host *host;
    int ret;
    struct ide_hw hw, *hws[] = { &hw };

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

    base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
    if (!base) {
        ret = -ENOMEM;
        goto release;
    }

    memset(&hw, 0, sizeof(hw));
    rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
    hw.dev = &ec->dev;

    ret = ide_host_add(&rapide_port_info, hws, 1, &host);
    if (ret)
        goto release;

    ecard_set_drvdata(ec, host);
    goto out;

 release:
    ecard_release_resources(ec);
 out:
    return ret;
}

static void __devexit rapide_remove(struct expansion_card *ec)
{
    struct ide_host *host = ecard_get_drvdata(ec);

    ecard_set_drvdata(ec, NULL);

    ide_host_remove(host);

    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);
}

static void __exit rapide_exit(void)
{
    ecard_remove_driver(&rapide_driver);
}

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Yellowstone RAPIDE driver");

module_init(rapide_init);
module_exit(rapide_exit);