// SPDX-License-Identifier: GPL-2.0-only

  /*

   * 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 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 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		= 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);