/* Definitions for pci-specific calls
   Copyright (C) 2017 Free Software Foundation, Inc.

This file is part of the GNU Hurd.

The GNU Hurd 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, or (at your option)
any later version.

The GNU Hurd 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 the GNU Hurd; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

subsystem pci 39000;

#include <hurd/hurd_types.defs>

#ifdef PCI_IMPORTS
PCI_IMPORTS
INTR_INTERFACE
#endif

/*
 * Read 'amount' bytes from offset 'reg' in the
 *  configuration space and store it in 'data'
 */
routine pci_conf_read (
	master: pci_t;
	reg: int;
	out data: data_t, dealloc;
	amount: vm_size_t
);

/* Write 'amount' bytes from 'data' to offset 'reg' in the config space */
routine pci_conf_write(
	master: pci_t;
	reg: int;
	data: data_t;
	out amount: vm_size_t
);

/*
 * Calculate the number of devices that are allowed
 * for the user and return it in 'numdevs'.
 */
routine pci_get_ndevs(
	master: pci_t;
	out ndevs: vm_size_t
);

/*
 * Return the memory regions for a specified device.
 * `data' is an array of 6 struct pci_bar
 */
routine pci_get_dev_regions(
	master: pci_t;
	out data: data_t, dealloc
);

/*
 * Return the expansion ROM bar for a given device.
 * `data' is a struct pci_xrom_bar
 */
routine pci_get_dev_rom(
	master: pci_t;
	out data: data_t, dealloc
);