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Merge pciaccess branch

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This commit is contained in:
Robert Millan 2009-12-11 21:12:57 +00:00
commit 2a3aa4d570
18 changed files with 354 additions and 53 deletions
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22
ChangeLog
View file

@ -1,3 +1,25 @@
2009-12-11 Vladimir Serbinenko <phcoder@gmail.com>
libpciaccess support.
* Makefile.in (LIBPCIACCESS): New variable.
(enable_grub_emu_pci): Likewise.
* conf/any-emu.rmk (grub_emu_SOURCES) [enable_grub_emu_pci]: Add
util/pci.c and commands/lspci.c.
(grub_emu_LDFLAGS) [enable_grub_emu_pci]: Add $(LIBPCIACCESS).
* configure.ac (grub-emu-pci): New option.
* include/grub/i386/pci.h (grub_pci_device_map_range): New function.
(grub_pci_device_unmap_range): Likewise.
* include/grub/pci.h [GRUB_UTIL]: Include grub/pciutils.h.
(grub_pci_device) [!GRUB_UTIL]: New structure. All users updated.
(grub_pci_address_t) [!GRUB_UTIL]: New type.
(grub_pci_device_t) [!GRUB_UTIL]: Likewise.
(grub_pci_get_bus) [!GRUB_UTIL]: New function.
(grub_pci_get_device) [!GRUB_UTIL]: Likewise.
(grub_pci_get_function) [!GRUB_UTIL]: Likewise.
* include/grub/pciutils.h: New file.
* util/pci.c: Likewise.
2009-12-11 Felix Zielcke <fzielcke@z-51.de>
* util/misc.c: Don't include <errno.h> twice.

2
Makefile.in
View file

@ -109,11 +109,13 @@ endif
AWK = @AWK@
LIBCURSES = @LIBCURSES@
LIBUSB = @LIBUSB@
LIBPCIACCESS = @LIBPCIACCESS@
YACC = @YACC@
FONT_SOURCE = @FONT_SOURCE@
# Options.
enable_grub_emu_usb = @enable_grub_emu_usb@
enable_grub_emu_pci = @enable_grub_emu_pci@
enable_grub_fstest = @enable_grub_fstest@
enable_grub_pe2elf = @enable_grub_pe2elf@
enable_grub_mkfont = @enable_grub_mkfont@

23
bus/pci.c
View file

@ -21,41 +21,40 @@
#include <grub/pci.h>
grub_pci_address_t
grub_pci_make_address (int bus, int device, int function, int reg)
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
return (1 << 31) | (bus << 16) | (device << 11) | (function << 8) | (reg << 2);
return (1 << 31) | (dev.bus << 16) | (dev.device << 11)
| (dev.function << 8) | (reg << 2);
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
int bus;
int dev;
int func;
grub_pci_device_t dev;
grub_pci_address_t addr;
grub_pci_id_t id;
grub_uint32_t hdr;
for (bus = 0; bus < 256; bus++)
for (dev.bus = 0; dev.bus < 256; dev.bus++)
{
for (dev = 0; dev < 32; dev++)
for (dev.device = 0; dev.device < 32; dev.device++)
{
for (func = 0; func < 8; func++)
for (dev.function = 0; dev.function < 8; dev.function++)
{
addr = grub_pci_make_address (bus, dev, func, 0);
addr = grub_pci_make_address (dev, 0);
id = grub_pci_read (addr);
/* Check if there is a device present. */
if (id >> 16 == 0xFFFF)
continue;
if (hook (bus, dev, func, id))
if (hook (dev, id))
return;
/* Probe only func = 0 if the device if not multifunction */
if (func == 0)
if (dev.function == 0)
{
addr = grub_pci_make_address (bus, dev, func, 3);
addr = grub_pci_make_address (dev, 3);
hdr = grub_pci_read (addr);
if (!(hdr & 0x800000))
break;

6
bus/usb/ohci.c
View file

@ -113,7 +113,7 @@ grub_ohci_writereg32 (struct grub_ohci *o,
/* Iterate over all PCI devices. Determine if a device is an OHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_ohci_pci_iter (int bus, int device, int func,
grub_ohci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -126,7 +126,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
grub_uint32_t revision;
grub_uint32_t frame_interval;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -138,7 +138,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 4);
addr = grub_pci_make_address (dev, 4);
base = grub_pci_read (addr);
#if 0

6
bus/usb/uhci.c
View file

@ -138,7 +138,7 @@ grub_uhci_portstatus (grub_usb_controller_t dev,
/* Iterate over all PCI devices. Determine if a device is an UHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_uhci_pci_iter (int bus, int device, int func,
grub_uhci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -151,7 +151,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
struct grub_uhci *u;
int i;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -163,7 +163,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 8);
addr = grub_pci_make_address (dev, 8);
base = grub_pci_read (addr);
/* Stop if there is no IO space base address defined. */
if (! (base & 1))

4
commands/efi/fixvideo.c
View file

@ -38,11 +38,11 @@ static struct grub_video_patch
};
static int NESTED_FUNC_ATTR
scan_card (int bus, int dev, int func, grub_pci_id_t pciid)
scan_card (grub_pci_device_t dev, grub_pci_id_t pciid)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (bus, dev, func, 2);
addr = grub_pci_make_address (dev, 2);
if (grub_pci_read_byte (addr + 3) == 0x3)
{
struct grub_video_patch *p = video_patches;

6
commands/efi/loadbios.c
View file

@ -41,6 +41,7 @@ enable_rom_area (void)
{
grub_pci_address_t addr;
grub_uint32_t *rom_ptr;
grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0};
rom_ptr = (grub_uint32_t *) VBIOS_ADDR;
if (*rom_ptr != BLANK_MEM)
@ -49,7 +50,7 @@ enable_rom_area (void)
return 0;
}
addr = grub_pci_make_address (0, 0, 0, 36);
addr = grub_pci_make_address (dev, 36);
grub_pci_write_byte (addr++, 0x30);
grub_pci_write_byte (addr++, 0x33);
grub_pci_write_byte (addr++, 0x33);
@ -73,8 +74,9 @@ static void
lock_rom_area (void)
{
grub_pci_address_t addr;
grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0};
addr = grub_pci_make_address (0, 0, 0, 36);
addr = grub_pci_make_address (dev, 36);
grub_pci_write_byte (addr++, 0x10);
grub_pci_write_byte (addr++, 0x11);
grub_pci_write_byte (addr++, 0x11);

13
commands/lspci.c
View file

@ -115,15 +115,16 @@ grub_pci_get_class (int class, int subclass)
}
static int NESTED_FUNC_ATTR
grub_lspci_iter (int bus, int dev, int func, grub_pci_id_t pciid)
grub_lspci_iter (grub_pci_device_t dev, grub_pci_id_t pciid)
{
grub_uint32_t class;
const char *sclass;
grub_pci_address_t addr;
grub_printf ("%02x:%02x.%x %04x:%04x", bus, dev, func, pciid & 0xFFFF,
pciid >> 16);
addr = grub_pci_make_address (bus, dev, func, 2);
grub_printf ("%02x:%02x.%x %04x:%04x", grub_pci_get_bus (dev),
grub_pci_get_device (dev), grub_pci_get_function (dev),
pciid & 0xFFFF, pciid >> 16);
addr = grub_pci_make_address (dev, 2);
class = grub_pci_read (addr);
/* Lookup the class name, if there isn't a specific one,
@ -156,13 +157,13 @@ grub_cmd_lspci (grub_command_t cmd __attribute__ ((unused)),
static grub_command_t cmd;
GRUB_MOD_INIT(pci)
GRUB_MOD_INIT(lspci)
{
cmd = grub_register_command ("lspci", grub_cmd_lspci,
0, "List PCI devices");
}
GRUB_MOD_FINI(pci)
GRUB_MOD_FINI(lspci)
{
grub_unregister_command (cmd);
}

5
conf/any-emu.rmk
View file

@ -59,6 +59,11 @@ grub_emu_SOURCES += disk/usbms.c util/usb.c bus/usb/usb.c \
grub_emu_LDFLAGS += $(LIBCURSES) $(LIBUSB)
endif
ifeq ($(enable_grub_emu_pci), yes)
grub_emu_SOURCES += util/pci.c commands/lspci.c
grub_emu_LDFLAGS += $(LIBPCIACCESS)
endif
grub_emu_init.lst: geninit.sh $(filter-out grub_emu_init.c,$(grub_emu_SOURCES))
rm -f $@; grep GRUB_MOD_INIT $(filter %.c,$^) /dev/null > $@
DISTCLEANFILES += grub_emu_init.lst

42
configure.ac
View file

@ -526,6 +526,10 @@ AC_ARG_ENABLE([grub-emu-usb],
[AS_HELP_STRING([--enable-grub-emu-usb],
[build and install the `grub-emu' debugging utility with USB support (default=guessed)])])
AC_ARG_ENABLE([grub-emu-pci],
[AS_HELP_STRING([--enable-grub-emu-pci],
[build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
if test "$platform" = emu; then
missing_ncurses=
[# Check for curses libraries.]
@ -547,6 +551,11 @@ fi
if test x"$enable_grub_emu_usb" = xno ; then
grub_emu_usb_excuse="explicitly disabled"
fi
if test x"$enable_grub_emu_pci" = xyes ; then
grub_emu_usb_excuse="conflicts with PCI support"
fi
[if [ x"$grub_emu_usb_excuse" = x ]; then
# Check for libusb libraries.]
AC_CHECK_LIB([usb], [usb_claim_interface], [LIBUSB="-lusb"],
@ -566,7 +575,35 @@ enable_grub_emu_usb=yes
else
enable_grub_emu_usb=no
fi
if test x"$enable_grub_emu_pci" != xyes ; then
grub_emu_pci_excuse="not enabled"
fi
if test x"$enable_grub_emu_usb" = xyes ; then
grub_emu_pci_excuse="conflicts with USB support"
fi
[if [ x"$grub_emu_pci_excuse" = x ]; then
# Check for libpci libraries.]
AC_CHECK_LIB([pciaccess], [pci_system_init], [LIBPCIACCESS="-lpciaccess"],
[grub_emu_pci_excuse=["need libpciaccess library"]])
AC_SUBST([LIBPCIACCESS])
[fi]
[if [ x"$grub_emu_pci_excuse" = x ]; then
# Check for headers.]
AC_CHECK_HEADERS([pci/pci.h], [],
[grub_emu_pci_excuse=["need libpciaccess headers"]])
[fi]
if test x"$grub_emu_pci_excuse" = x ; then
enable_grub_emu_pci=yes
else
enable_grub_emu_pci=no
fi
AC_SUBST([enable_grub_emu_usb])
AC_SUBST([enable_grub_emu_pci])
fi
AC_ARG_ENABLE([grub-fstest],
@ -641,6 +678,11 @@ echo USB support for grub-emu: Yes
else
echo USB support for grub-emu: No "($grub_emu_usb_excuse)"
fi
if [ x"$grub_emu_pci_excuse" = x ]; then
echo PCI support for grub-emu: Yes
else
echo PCI support for grub-emu: No "($grub_emu_pci_excuse)"
fi
fi
if [ x"$enable_mm_debug" = xyes ]; then
echo With memory debugging: Yes

11
disk/ata.c
View file

@ -388,7 +388,7 @@ grub_ata_device_initialize (int port, int device, int addr, int addr2)
}
static int NESTED_FUNC_ATTR
grub_ata_pciinit (int bus, int device, int func,
grub_ata_pciinit (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
static int compat_use[2] = { 0 };
@ -402,7 +402,7 @@ grub_ata_pciinit (int bus, int device, int func,
static int controller = 0;
/* Read class. */
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class = grub_pci_read (addr);
/* Check if this class ID matches that of a PCI IDE Controller. */
@ -429,9 +429,9 @@ grub_ata_pciinit (int bus, int device, int func,
{
/* Read the BARs, which either contain a mmapped IO address
or the IO port address. */
addr = grub_pci_make_address (bus, device, func, 4 + 2 * i);
addr = grub_pci_make_address (dev, 4 + 2 * i);
bar1 = grub_pci_read (addr);
addr = grub_pci_make_address (bus, device, func, 5 + 2 * i);
addr = grub_pci_make_address (dev, 5 + 2 * i);
bar2 = grub_pci_read (addr);
/* Check if the BARs describe an IO region. */
@ -444,7 +444,8 @@ grub_ata_pciinit (int bus, int device, int func,
grub_dprintf ("ata",
"PCI dev (%d,%d,%d) compat=%d rega=0x%x regb=0x%x\n",
bus, device, func, compat, rega, regb);
grub_pci_get_bus (dev), grub_pci_get_device (dev),
grub_pci_get_function (dev), compat, rega, regb);
if (rega && regb)
{

16
include/grub/i386/pci.h
View file

@ -67,4 +67,20 @@ grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
grub_outb (data, GRUB_PCI_DATA_REG + (addr & 3));
}
static inline void *
grub_pci_device_map_range (grub_pci_device_t dev __attribute__ ((unused)),
grub_addr_t base,
grub_size_t size __attribute__ ((unused)))
{
return (void *) base;
}
static inline void
grub_pci_device_unmap_range (grub_pci_device_t dev __attribute__ ((unused)),
void *mem __attribute__ ((unused)),
grub_size_t size __attribute__ ((unused)))
{
}
#endif /* GRUB_CPU_PCI_H */

45
include/grub/pci.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
* Copyright (C) 2008,2009 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
@ -36,15 +36,44 @@
#define GRUB_PCI_ADDR_IO_MASK ~0x03
typedef grub_uint32_t grub_pci_id_t;
typedef int NESTED_FUNC_ATTR (*grub_pci_iteratefunc_t)
(int bus, int device, int func, grub_pci_id_t pciid);
typedef grub_uint32_t grub_pci_address_t;
grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (int bus, int device,
int function, int reg);
#ifdef GRUB_UTIL
#include <grub/pciutils.h>
#else
typedef grub_uint32_t grub_pci_address_t;
struct grub_pci_device
{
int bus;
int device;
int function;
};
typedef struct grub_pci_device grub_pci_device_t;
static inline int
grub_pci_get_bus (grub_pci_device_t dev)
{
return dev.bus;
}
static inline int
grub_pci_get_device (grub_pci_device_t dev)
{
return dev.device;
}
static inline int
grub_pci_get_function (grub_pci_device_t dev)
{
return dev.function;
}
#include <grub/cpu/pci.h>
#endif
typedef int NESTED_FUNC_ATTR (*grub_pci_iteratefunc_t)
(grub_pci_device_t dev, grub_pci_id_t pciid);
grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (grub_pci_device_t dev,
int reg);
void EXPORT_FUNC(grub_pci_iterate) (grub_pci_iteratefunc_t hook);
#include <grub/cpu/pci.h>
#endif /* GRUB_PCI_H */

103
include/grub/pciutils.h Normal file
View file

@ -0,0 +1,103 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008,2009 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/>.
*/
#ifndef GRUB_PCIUTILS_H
#define GRUB_PCIUTILS_H 1
#include <pciaccess.h>
typedef struct pci_device *grub_pci_device_t;
static inline int
grub_pci_get_bus (grub_pci_device_t dev)
{
return dev->bus;
}
static inline int
grub_pci_get_device (grub_pci_device_t dev)
{
return dev->dev;
}
static inline int
grub_pci_get_function (grub_pci_device_t dev)
{
return dev->func;
}
struct grub_pci_address
{
grub_pci_device_t dev;
int pos;
};
typedef struct grub_pci_address grub_pci_address_t;
static inline grub_uint32_t
grub_pci_read (grub_pci_address_t addr)
{
grub_uint32_t ret;
pci_device_cfg_read_u32 (addr.dev, &ret, addr.pos);
return ret;
}
static inline grub_uint16_t
grub_pci_read_word (grub_pci_address_t addr)
{
grub_uint16_t ret;
pci_device_cfg_read_u16 (addr.dev, &ret, addr.pos);
return ret;
}
static inline grub_uint8_t
grub_pci_read_byte (grub_pci_address_t addr)
{
grub_uint8_t ret;
pci_device_cfg_read_u8 (addr.dev, &ret, addr.pos);
return ret;
}
static inline void
grub_pci_write (grub_pci_address_t addr, grub_uint32_t data)
{
pci_device_cfg_write_u32 (addr.dev, data, addr.pos);
}
static inline void
grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data)
{
pci_device_cfg_write_u16 (addr.dev, data, addr.pos);
}
static inline void
grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
{
pci_device_cfg_write_u8 (addr.dev, data, addr.pos);
}
void *
grub_pci_device_map_range (grub_pci_device_t dev, grub_addr_t base,
grub_size_t size);
void
grub_pci_device_unmap_range (grub_pci_device_t dev, void *mem,
grub_size_t size);
#endif /* GRUB_PCIUTILS_H */

9
loader/i386/efi/linux.c
View file

@ -469,21 +469,22 @@ find_framebuf (grub_uint32_t *fb_base, grub_uint32_t *line_len)
{
int found = 0;
auto int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid);
int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (bus, dev, func, 2);
addr = grub_pci_make_address (dev, 2);
if (grub_pci_read (addr) >> 24 == 0x3)
{
int i;
grub_printf ("Display controller: %d:%d.%d\nDevice id: %x\n",
bus, dev, func, pciid);
grub_pci_get_bus (dev), grub_pci_get_device (dev),
grub_pci_get_function (dev), pciid);
addr += 8;
for (i = 0; i < 6; i++, addr += 4)
{

9
loader/i386/efi/xnu.c
View file

@ -71,21 +71,22 @@ find_framebuf (grub_uint32_t *fb_base, grub_uint32_t *line_len)
{
int found = 0;
auto int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid);
int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (bus, dev, func, 2);
addr = grub_pci_make_address (dev, 2);
if (grub_pci_read (addr) >> 24 == 0x3)
{
int i;
grub_printf ("Display controller: %d:%d.%d\nDevice id: %x\n",
bus, dev, func, pciid);
grub_pci_get_bus (dev), grub_pci_get_device (dev),
grub_pci_get_function (dev), pciid);
addr += 8;
for (i = 0; i < 6; i++, addr += 4)
{

76
util/pci.c Normal file
View file

@ -0,0 +1,76 @@
/* pci.c - Generic PCI interfaces. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007,2009 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/pci.h>
#include <grub/dl.h>
#include <grub/util/misc.h>
grub_pci_address_t
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
grub_pci_address_t ret;
ret.dev = dev;
ret.pos = reg << 2;
return ret;
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
struct pci_device_iterator *iter;
struct pci_slot_match slot;
struct pci_device *dev;
slot.domain = PCI_MATCH_ANY;
slot.bus = PCI_MATCH_ANY;
slot.dev = PCI_MATCH_ANY;
slot.func = PCI_MATCH_ANY;
iter = pci_slot_match_iterator_create (&slot);
while ((dev = pci_device_next (iter)))
hook (dev, dev->vendor_id | (dev->device_id << 16));
pci_iterator_destroy (iter);
}
void *
grub_pci_device_map_range (grub_pci_device_t dev, grub_addr_t base,
grub_size_t size)
{
void *addr;
int err;
err = pci_device_map_range (dev, base, size, PCI_DEV_MAP_FLAG_WRITABLE, &addr);
if (err)
grub_util_error ("mapping 0x%x failed (error %d)\n", base, err);
return addr;
}
void
grub_pci_device_unmap_range (grub_pci_device_t dev, void *mem,
grub_size_t size)
{
pci_device_unmap_range (dev, mem, size);
}
GRUB_MOD_INIT (pci)
{
pci_system_init ();
}
GRUB_MOD_FINI (pci)
{
pci_system_cleanup ();
}

9
video/efi_uga.c
View file

@ -84,21 +84,22 @@ find_framebuf (grub_uint32_t *fb_base, grub_uint32_t *line_len)
{
int found = 0;
auto int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid);
int NESTED_FUNC_ATTR find_card (int bus, int dev, int func,
int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
grub_pci_id_t pciid)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (bus, dev, func, 2);
addr = grub_pci_make_address (dev, 2);
if (grub_pci_read (addr) >> 24 == 0x3)
{
int i;
grub_dprintf ("fb", "Display controller: %d:%d.%d\nDevice id: %x\n",
bus, dev, func, pciid);
grub_pci_get_bus (dev), grub_pci_get_device (dev),
grub_pci_get_function (dev), pciid);
addr += 8;
for (i = 0; i < 6; i++, addr += 4)
{