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2008-02-02 Marco Gerards <marco@gnu.org>

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* bus/pci.c: New file.

	* include/grub/pci.h: Likewise.

	* include/grub/i386/pc/pci.h: Likewise.

	* commands/lspci.c: Likewise.

	* conf/i386-pc.rmk (pkglib_MODULES): Add `pci.mod' and
	`lspci.mod'.
	(pci_mod_SOURCES): New variable.
	(pci_mod_CFLAGS): Likewise.
	(pci_mod_LDFLAGS): Likewise.
	(lspci_mod_SOURCES): Likewise.
	(lspci_mod_CFLAGS): Likewise.
	(lspci_mod_LDFLAGS): Likewise.
This commit is contained in:
marco_g 2008-02-02 15:33:05 +00:00
parent c004e1b477
commit 58c6922006
7 changed files with 426 additions and 2 deletions
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56
bus/pci.c Normal file
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/* pci.c - Generic PCI interfaces. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/dl.h>
#include <grub/pci.h>
grub_pci_address_t
grub_pci_make_address (int bus, int device, int function, int reg)
{
return (1 << 31) | (bus << 16) | (device << 11) | (function << 8) | (reg << 2);
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
int bus;
int dev;
int func;
grub_pci_address_t addr;
grub_pci_id_t id;
for (bus = 0; bus < 256; bus++)
{
for (dev = 0; dev < 32; dev++)
{
for (func = 0; func < 3; func++)
{
addr = grub_pci_make_address (bus, dev, func, 0);
id = grub_pci_read (addr);
/* Check if there is a device present. */
if (id >> 16 == 0xFFFF)
continue;
if (hook (bus, dev, func, id))
return;
}
}
}
}