LXR linux/drivers/ide/rapide.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (c) 1996-2002 Russell King.
   4 */
   5
   6#include <linux/module.h>
   7#include <linux/blkdev.h>
   8#include <linux/errno.h>
   9#include <linux/ide.h>
  10#include <linux/init.h>
  11
  12#include <asm/ecard.h>
  13
  14static const struct ide_port_info rapide_port_info = {
  15        .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
  16        .chipset                = ide_generic,
  17};
  18
  19static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base,
  20                               void __iomem *ctrl, unsigned int sz, int irq)
  21{
  22        unsigned long port = (unsigned long)base;
  23        int i;
  24
  25        for (i = 0; i <= 7; i++) {
  26                hw->io_ports_array[i] = port;
  27                port += sz;
  28        }
  29        hw->io_ports.ctl_addr = (unsigned long)ctrl;
  30        hw->irq = irq;
  31}
  32
  33static int rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
  34{
  35        void __iomem *base;
  36        struct ide_host *host;
  37        int ret;
  38        struct ide_hw hw, *hws[] = { &hw };
  39
  40        ret = ecard_request_resources(ec);
  41        if (ret)
  42                goto out;
  43
  44        base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
  45        if (!base) {
  46                ret = -ENOMEM;
  47                goto release;
  48        }
  49
  50        memset(&hw, 0, sizeof(hw));
  51        rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
  52        hw.dev = &ec->dev;
  53
  54        ret = ide_host_add(&rapide_port_info, hws, 1, &host);
  55        if (ret)
  56                goto release;
  57
  58        ecard_set_drvdata(ec, host);
  59        goto out;
  60
  61 release:
  62        ecard_release_resources(ec);
  63 out:
  64        return ret;
  65}
  66
  67static void rapide_remove(struct expansion_card *ec)
  68{
  69        struct ide_host *host = ecard_get_drvdata(ec);
  70
  71        ecard_set_drvdata(ec, NULL);
  72
  73        ide_host_remove(host);
  74
  75        ecard_release_resources(ec);
  76}
  77
  78static struct ecard_id rapide_ids[] = {
  79        { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  80        { 0xffff, 0xffff }
  81};
  82
  83static struct ecard_driver rapide_driver = {
  84        .probe          = rapide_probe,
  85        .remove         = rapide_remove,
  86        .id_table       = rapide_ids,
  87        .drv = {
  88                .name   = "rapide",
  89        },
  90};
  91
  92static int __init rapide_init(void)
  93{
  94        return ecard_register_driver(&rapide_driver);
  95}
  96
  97static void __exit rapide_exit(void)
  98{
  99        ecard_remove_driver(&rapide_driver);
 100}
 101
 102MODULE_LICENSE("GPL");
 103MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
 104
 105module_init(rapide_init);
 106module_exit(rapide_exit);
 107