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/*
comedi/drivers/comedi_pci.h
Various PCI functions for drivers.
Copyright (C) 2007 MEV Ltd. <http://www.mev.co.uk/>
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 2000 David A. Schleef <ds@schleef.org>
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _COMEDI_PCI_H_
#define _COMEDI_PCI_H_
#include <linux/pci.h>
/*
* Enable the PCI device and request the regions.
*/
static inline int comedi_pci_enable(struct pci_dev *pdev, const char *res_name)
{
int rc;
rc = pci_enable_device(pdev);
if (rc < 0)
return rc;
rc = pci_request_regions(pdev, res_name);
if (rc < 0)
pci_disable_device(pdev);
return rc;
}
/*
* Release the regions and disable the PCI device.
*
* This must be matched with a previous successful call to comedi_pci_enable().
*/
static inline void comedi_pci_disable(struct pci_dev *pdev)
{
pci_release_regions(pdev);
pci_disable_device(pdev);
}
#endif
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