vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

2009-04-10 Bean <bean123ch@gnail.com>

Browse source 
* include/grub/efi/api.h (grub_efi_configuration_table): Add packed
	attribute, otherwise the size would be wrong for i386 platform.

	* include/grub/pci.h (grub_pci_read_word): New inline function.
	(grub_pci_read_byte): Likewise.
	(grub_pci_write): Likewise.
	(grub_pci_write_word): Likewise.
	(grub_pci_write_byte): Likewise.

	* include/grub/pci.h (grub_pci_iteratefunc_t): Add NESTED_FUNC_ATTR.

	* loader/i386/efi/linux.c (fake_bios_data): Moved to loadbios module.
	(find_framebuf): Scan pci to locate the frame buffer address.

	* commands/efi/fixvideo.c: New file.

	* commands/efi/loadbios.c: Likewise.

	* commands/memrw.c: Likewise.

	* util/grub-dumpbios.in: Likewise.

	* conf/common.rmk (grub-dumpbios): New utility.
	(pkglib_MODULES): New module memrw.mod.
	(memrw_mod_SOURCE): New macro.
	(memrw_mod_CFLAGS): Likewise.
	(memrw_mod_LDFLAGS): Likewise.

	* conf/i386-efi.rmk (pkglig_MODULES): New module loadbios.mod and
	fixvideo.mod.
	(loadbios_mod_SOURCE): New macro.
	(loadbios_mod_CFLAGS): Likewise.
	(loadbios_mod_LDFLAGS): Likewise.
	(fixvideo_mod_SOURCE): Likewise.
	(fixvideo_mod_CFLAGS): Likewise.
	(fixvideo_mod_LDFLAGS): Likewise.

	* conf/x86_64.rmk (pkglig_MODULES): New module loadbios.mod and
	fixvideo.mod.
	(loadbios_mod_SOURCE): New macro.
	(loadbios_mod_CFLAGS): Likewise.
	(loadbios_mod_LDFLAGS): Likewise.
	(fixvideo_mod_SOURCE): Likewise.
	(fixvideo_mod_CFLAGS): Likewise.
	(fixvideo_mod_LDFLAGS): Likewise.
This commit is contained in:
bean 2009-04-10 15:33:34 +00:00
parent af63ada2bd
commit e7e6862a4c
16 changed files with 1062 additions and 162 deletions
Download patch file Download diff file Expand all files Collapse all files

110
commands/efi/fixvideo.c Normal file
View file

@ -0,0 +1,110 @@
/* fixvideo.c - fix video problem in efi */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 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/dl.h>
#include <grub/misc.h>
#include <grub/file.h>
#include <grub/pci.h>
#include <grub/command.h>
static struct grub_video_patch
{
const char *name;
grub_uint32_t pci_id;
grub_uint32_t mmio_bar;
grub_uint32_t mmio_reg;
grub_uint32_t mmio_old;
} video_patches[] =
{
{"Intel 945GM", 0x27a28086, 0, 0x71184, 0x1000000}, /* DSPBBASE */
{"Intel 965GM", 0x2a028086, 0, 0x7119C, 0x1000000}, /* DSPBSURF */
{0, 0, 0, 0, 0}
};
static int NESTED_FUNC_ATTR
scan_card (int bus, int dev, int func, grub_pci_id_t pciid)
{
grub_pci_address_t addr;
addr = grub_pci_make_address (bus, dev, func, 2);
if (grub_pci_read_byte (addr + 3) == 0x3)
{
struct grub_video_patch *p = video_patches;
while (p->name)
{
if (p->pci_id == pciid)
{
grub_target_addr_t base;
grub_printf ("Found graphic card: %s\n", p->name);
addr += 8 + p->mmio_bar * 4;
base = grub_pci_read (addr);
if ((! base) || (base & GRUB_PCI_ADDR_SPACE_IO) ||
(base & GRUB_PCI_ADDR_MEM_PREFETCH))
grub_printf ("Invalid MMIO bar %d\n", p->mmio_bar);
else
{
base &= GRUB_PCI_ADDR_MEM_MASK;
base += p->mmio_reg;
if (*((volatile grub_uint32_t *) base) != p->mmio_old)
grub_printf ("Old value don't match\n");
else
{
*((volatile grub_uint32_t *) base) = 0;
if (*((volatile grub_uint32_t *) base))
grub_printf ("Set MMIO fails\n");
}
}
return 1;
}
p++;
}
grub_printf ("Unknown graphic card: %x\n", pciid);
}
return 0;
}
static grub_err_t
grub_cmd_fixvideo (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
grub_pci_iterate (scan_card);
return 0;
}
static grub_command_t cmd_fixvideo;
GRUB_MOD_INIT(fixvideo)
{
(void) mod; /* To stop warning. */
cmd_fixvideo = grub_register_command ("fix_video", grub_cmd_fixvideo,
0, "Fix video problem.");
}
GRUB_MOD_FINI(fixvideo)
{
grub_unregister_command (cmd_fixvideo);
}