[mirror_ubuntu-zesty-kernel.git] / arch / frv / mb93090-mb00 / pci-iomap.c

/* pci-iomap.c: description
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#include <linux/pci.h>
#include <linux/module.h>

void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
{
	unsigned long start = pci_resource_start(dev, bar);
	unsigned long len = pci_resource_len(dev, bar);
	unsigned long flags = pci_resource_flags(dev, bar);

	if (!len || !start)
		return NULL;

	if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM))
		return (void __iomem *) start;

	return NULL;
}

EXPORT_SYMBOL(pci_iomap);
Commit	Line	Data
a2a88f88 DH	1	/* pci-iomap.c: description
	2	*
	3	* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
	4	* Written by David Howells (dhowells@redhat.com)
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the License, or (at your option) any later version.
	10	*/
	11	#include <linux/pci.h>
	12	#include <linux/module.h>
	13
	14	void __iomem pci_iomap(struct pci_dev dev, int bar, unsigned long maxlen)
	15	{
	16	unsigned long start = pci_resource_start(dev, bar);
	17	unsigned long len = pci_resource_len(dev, bar);
	18	unsigned long flags = pci_resource_flags(dev, bar);
	19
	20	if (!len \|\| !start)
	21	return NULL;
	22
	23	if ((flags & IORESOURCE_IO) \|\| (flags & IORESOURCE_MEM))
	24	return (void __iomem *) start;
	25
	26	return NULL;
	27	}
	28
	29	EXPORT_SYMBOL(pci_iomap);