2009-11-28 Vladimir Serbinenko <phcoder@gmail.com>
GOP support. Based on patch from Bean (http://lists.gnu.org/archive/html/grub-devel/2009-08/msg00384.html) * video/efi_gop.c: New file. * include/grub/efi/graphics_output.h: Likewise. * conf/i386-efi.rmk (pkglib_MODULES): Add `efi_gop.mod'. (efi_fb_mod_SOURCES, efi_fb_mod_CFLAGS, efi_fb_mod_LDFLAGS): New variables. * conf/x86_64-efi.rmk: Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko
commit
c85184ad3d
5 changed files with 516 additions and 0 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2009-11-28 Vladimir Serbinenko <phcoder@gmail.com>
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GOP support. Based on patch from Bean
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(http://lists.gnu.org/archive/html/grub-devel/2009-08/msg00384.html)
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* video/efi_gop.c: New file.
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* include/grub/efi/graphics_output.h: Likewise.
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* conf/i386-efi.rmk (pkglib_MODULES): Add `efi_gop.mod'.
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(efi_fb_mod_SOURCES, efi_fb_mod_CFLAGS, efi_fb_mod_LDFLAGS): New
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variables.
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* conf/x86_64-efi.rmk: Likewise.
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2009-11-28 Vladimir Serbinenko <phcoder@gmail.com>
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Rename efi_fb to efi_uga.
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@ -148,6 +148,11 @@ efi_uga_mod_SOURCES = video/efi_uga.c
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efi_uga_mod_CFLAGS = $(COMMON_CFLAGS)
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efi_uga_mod_LDFLAGS = $(COMMON_LDFLAGS)
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pkglib_MODULES += efi_gop.mod
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efi_gop_mod_SOURCES = video/efi_gop.c
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efi_gop_mod_CFLAGS = $(COMMON_CFLAGS)
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efi_gop_mod_LDFLAGS = $(COMMON_LDFLAGS)
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pkglib_MODULES += xnu.mod
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xnu_mod_SOURCES = loader/xnu_resume.c loader/i386/xnu.c loader/i386/efi/xnu.c\
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loader/macho.c loader/xnu.c loader/i386/xnu_helper.S
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@ -154,6 +154,11 @@ efi_uga_mod_SOURCES = video/efi_uga.c
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efi_uga_mod_CFLAGS = $(COMMON_CFLAGS)
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efi_uga_mod_LDFLAGS = $(COMMON_LDFLAGS)
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pkglib_MODULES += efi_gop.mod
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efi_gop_mod_SOURCES = video/efi_gop.c
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efi_gop_mod_CFLAGS = $(COMMON_CFLAGS)
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efi_gop_mod_LDFLAGS = $(COMMON_LDFLAGS)
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pkglib_MODULES += xnu.mod
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xnu_mod_SOURCES = loader/xnu_resume.c loader/i386/xnu.c loader/i386/efi/xnu.c\
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loader/macho.c loader/xnu.c loader/i386/xnu_helper.S
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96
include/grub/efi/graphics_output.h
Normal file
96
include/grub/efi/graphics_output.h
Normal file
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@ -0,0 +1,96 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_EFI_GOP_HEADER
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#define GRUB_EFI_GOP_HEADER 1
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/* Based on UEFI specification. */
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#define GRUB_EFI_GOP_GUID \
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{ 0x9042a9de, 0x23dc, 0x4a38, { 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a }}
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typedef enum
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{
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GRUB_EFI_GOT_RGBA8,
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GRUB_EFI_GOT_BGRA8,
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GRUB_EFI_GOT_BITMASK
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}
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grub_efi_gop_pixel_format_t;
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struct grub_efi_gop_pixel_bitmask
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{
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grub_uint32_t r;
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grub_uint32_t g;
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grub_uint32_t b;
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grub_uint32_t a;
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};
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struct grub_efi_gop_mode_info
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{
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grub_efi_uint32_t version;
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grub_efi_uint32_t width;
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grub_efi_uint32_t height;
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grub_efi_gop_pixel_format_t pixel_format;
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struct grub_efi_gop_pixel_bitmask pixel_bitmask;
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grub_efi_uint32_t pixels_per_scanline;
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};
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struct grub_efi_gop_mode
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{
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grub_efi_uint32_t max_mode;
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grub_efi_uint32_t mode;
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struct grub_efi_gop_mode_info *info;
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grub_efi_uintn_t info_size;
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grub_efi_physical_address_t fb_base;
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grub_efi_uintn_t fb_size;
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};
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/* Forward declaration. */
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struct grub_efi_gop;
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typedef grub_efi_status_t
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(*grub_efi_gop_query_mode_t) (struct grub_efi_gop *this,
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grub_efi_uint32_t mode_number,
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grub_efi_uintn_t *size_of_info,
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struct grub_efi_gop_mode_info *info);
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typedef grub_efi_status_t
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(*grub_efi_gop_set_mode_t) (struct grub_efi_gop *this,
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grub_efi_uint32_t mode_number);
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typedef grub_efi_status_t
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(*grub_efi_gop_blt_t) (struct grub_efi_gop *this,
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void *buffer,
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grub_efi_uintn_t operation,
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grub_efi_uintn_t sx,
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grub_efi_uintn_t sy,
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grub_efi_uintn_t dx,
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grub_efi_uintn_t dy,
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grub_efi_uintn_t width,
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grub_efi_uintn_t height,
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grub_efi_uintn_t delta);
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struct grub_efi_gop
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{
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grub_efi_gop_query_mode_t query_mode;
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grub_efi_gop_set_mode_t set_mode;
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grub_efi_gop_blt_t blt;
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struct grub_efi_gop_mode *mode;
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};
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#endif
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398
video/efi_gop.c
Normal file
398
video/efi_gop.c
Normal file
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@ -0,0 +1,398 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation, either version 3 of the License, or
|
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* (at your option) any later version.
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*
|
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* GRUB is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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* GNU General Public License for more details.
|
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*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define grub_video_render_target grub_video_fbrender_target
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#include <grub/err.h>
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#include <grub/types.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/video.h>
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#include <grub/video_fb.h>
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#include <grub/efi/api.h>
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#include <grub/efi/efi.h>
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#include <grub/efi/graphics_output.h>
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static grub_efi_guid_t graphics_output_guid = GRUB_EFI_GOP_GUID;
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static struct grub_efi_gop *gop;
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static unsigned old_mode;
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static int restore_needed;
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static struct
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{
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struct grub_video_mode_info mode_info;
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struct grub_video_render_target *render_target;
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grub_uint8_t *ptr;
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} framebuffer;
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static int
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check_protocol (void)
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{
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gop = grub_efi_locate_protocol (&graphics_output_guid, 0);
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if (gop)
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return 1;
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return 0;
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}
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static grub_err_t
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grub_video_gop_init (void)
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{
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grub_memset (&framebuffer, 0, sizeof(framebuffer));
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return grub_video_fb_init ();
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}
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static grub_err_t
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grub_video_gop_fini (void)
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{
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if (restore_needed)
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{
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efi_call_2 (gop->set_mode, gop, old_mode);
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restore_needed = 0;
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}
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return grub_video_fb_fini ();
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}
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static int
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grub_video_gop_get_bpp (struct grub_efi_gop_mode_info *in)
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{
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grub_uint32_t total_mask;
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int i;
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switch (in->pixel_format)
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{
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case GRUB_EFI_GOT_BGRA8:
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case GRUB_EFI_GOT_RGBA8:
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return 32;
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case GRUB_EFI_GOT_BITMASK:
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/* Check overlaps. */
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if ((in->pixel_bitmask.r & in->pixel_bitmask.g)
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|| (in->pixel_bitmask.r & in->pixel_bitmask.b)
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|| (in->pixel_bitmask.g & in->pixel_bitmask.b)
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|| (in->pixel_bitmask.r & in->pixel_bitmask.a)
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|| (in->pixel_bitmask.g & in->pixel_bitmask.a)
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|| (in->pixel_bitmask.b & in->pixel_bitmask.a))
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return 0;
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total_mask = in->pixel_bitmask.r | in->pixel_bitmask.g
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| in->pixel_bitmask.b | in->pixel_bitmask.a;
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for (i = 31; i >= 0; i--)
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if (total_mask & (1 << i))
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return i + 1;
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/* Fall through. */
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default:
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return 0;
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}
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}
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static void
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grub_video_gop_get_bitmask (grub_uint32_t mask, unsigned int *mask_size,
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unsigned int *field_pos)
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{
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int i;
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int last_p;
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for (i = 31; i >= 0; i--)
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if (mask & (1 << i))
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break;
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if (i == -1)
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{
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*mask_size = *field_pos = 0;
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return;
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}
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last_p = i;
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for (; i >= 0; i--)
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if (!(mask & (1 << i)))
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break;
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*field_pos = i + 1;
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*mask_size = last_p - *field_pos;
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}
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static grub_err_t
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grub_video_gop_fill_mode_info (struct grub_efi_gop_mode_info *in,
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struct grub_video_mode_info *out)
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{
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out->number_of_colors = 256;
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out->width = in->width;
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out->height = in->height;
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out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
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out->bpp = grub_video_gop_get_bpp (in);
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out->bytes_per_pixel = out->bpp >> 3;
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if (!out->bpp)
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return grub_error (GRUB_ERR_IO, "Unsupported video mode");
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out->pitch = in->pixels_per_scanline * out->bytes_per_pixel;
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switch (in->pixel_format)
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{
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case GRUB_EFI_GOT_RGBA8:
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out->red_mask_size = 8;
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out->red_field_pos = 0;
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out->green_mask_size = 8;
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out->green_field_pos = 8;
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out->blue_mask_size = 8;
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out->blue_field_pos = 16;
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out->reserved_mask_size = 8;
|
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out->reserved_field_pos = 24;
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break;
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case GRUB_EFI_GOT_BGRA8:
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out->red_mask_size = 8;
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out->red_field_pos = 16;
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out->green_mask_size = 8;
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out->green_field_pos = 8;
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out->blue_mask_size = 8;
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out->blue_field_pos = 0;
|
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out->reserved_mask_size = 8;
|
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out->reserved_field_pos = 24;
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||||
break;
|
||||
|
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case GRUB_EFI_GOT_BITMASK:
|
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grub_video_gop_get_bitmask (in->pixel_bitmask.r, &out->red_mask_size,
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&out->red_field_pos);
|
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grub_video_gop_get_bitmask (in->pixel_bitmask.g, &out->green_mask_size,
|
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&out->green_field_pos);
|
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grub_video_gop_get_bitmask (in->pixel_bitmask.b, &out->blue_mask_size,
|
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&out->blue_field_pos);
|
||||
grub_video_gop_get_bitmask (in->pixel_bitmask.a, &out->reserved_mask_size,
|
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&out->reserved_field_pos);
|
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break;
|
||||
|
||||
default:
|
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return grub_error (GRUB_ERR_IO, "Unsupported video mode");
|
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}
|
||||
|
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out->blit_format = grub_video_get_blit_format (out);
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
static grub_err_t
|
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grub_video_gop_setup (unsigned int width, unsigned int height,
|
||||
unsigned int mode_type)
|
||||
{
|
||||
unsigned int depth;
|
||||
struct grub_efi_gop_mode_info *info = NULL;
|
||||
unsigned best_mode = 0;
|
||||
grub_err_t err;
|
||||
unsigned bpp;
|
||||
int found = 0;
|
||||
unsigned long long best_volume = 0;
|
||||
|
||||
depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
|
||||
>> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
|
||||
|
||||
/* Keep current mode if possible. */
|
||||
if (gop->mode->info)
|
||||
{
|
||||
bpp = grub_video_gop_get_bpp (gop->mode->info);
|
||||
if (bpp && ((width == gop->mode->info->width
|
||||
&& height == gop->mode->info->height)
|
||||
|| (width == 0 && height == 0))
|
||||
&& (depth == bpp || depth == 0))
|
||||
{
|
||||
grub_dprintf ("video", "GOP: keeping mode %d\n", gop->mode->mode);
|
||||
best_mode = gop->mode->mode;
|
||||
found = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (!found)
|
||||
{
|
||||
unsigned mode;
|
||||
grub_dprintf ("video", "GOP: %d modes detected\n", gop->mode->max_mode);
|
||||
for (mode = 0; mode < gop->mode->max_mode; mode++)
|
||||
{
|
||||
grub_efi_uintn_t size;
|
||||
grub_efi_status_t status;
|
||||
|
||||
status = efi_call_4 (gop->query_mode, gop, mode, &size, &info);
|
||||
if (status)
|
||||
{
|
||||
info = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
grub_dprintf ("video", "GOP: mode %d: %dx%d\n", mode, info->width,
|
||||
info->height);
|
||||
|
||||
bpp = grub_video_gop_get_bpp (info);
|
||||
if (!bpp)
|
||||
{
|
||||
grub_dprintf ("video", "GOP: mode %d: incompatible pixel mode\n",
|
||||
mode);
|
||||
continue;
|
||||
}
|
||||
|
||||
grub_dprintf ("video", "GOP: mode %d: depth %d\n", mode, bpp);
|
||||
|
||||
if (!(((info->width == width && info->height == height)
|
||||
|| (width == 0 && height == 0))
|
||||
&& (bpp == depth || depth == 0)))
|
||||
{
|
||||
grub_dprintf ("video", "GOP: mode %d: rejected\n", mode);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (best_volume < ((unsigned long long) info->width)
|
||||
* ((unsigned long long) info->height)
|
||||
* ((unsigned long long) bpp))
|
||||
{
|
||||
best_volume = ((unsigned long long) info->width)
|
||||
* ((unsigned long long) info->height)
|
||||
* ((unsigned long long) bpp);
|
||||
best_mode = mode;
|
||||
}
|
||||
found = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (!found)
|
||||
{
|
||||
grub_dprintf ("video", "GOP: no mode found\n");
|
||||
return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "no matching mode found.");
|
||||
}
|
||||
|
||||
if (best_mode != gop->mode->mode)
|
||||
{
|
||||
if (!restore_needed)
|
||||
{
|
||||
old_mode = gop->mode->mode;
|
||||
restore_needed = 1;
|
||||
}
|
||||
efi_call_2 (gop->set_mode, gop, best_mode);
|
||||
}
|
||||
|
||||
info = gop->mode->info;
|
||||
|
||||
err = grub_video_gop_fill_mode_info (info, &framebuffer.mode_info);
|
||||
if (err)
|
||||
{
|
||||
grub_dprintf ("video", "GOP: couldn't fill mode info\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
framebuffer.ptr = (void *) gop->mode->fb_base;
|
||||
|
||||
grub_dprintf ("video", "GOP: initialising FB @ %p %dx%dx%d\n",
|
||||
framebuffer.ptr, framebuffer.mode_info.width,
|
||||
framebuffer.mode_info.height, framebuffer.mode_info.bpp);
|
||||
|
||||
err = grub_video_fb_create_render_target_from_pointer
|
||||
(&framebuffer.render_target, &framebuffer.mode_info, framebuffer.ptr);
|
||||
|
||||
if (err)
|
||||
{
|
||||
grub_dprintf ("video", "GOP: Couldn't create FB target\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
err = grub_video_fb_set_active_render_target (framebuffer.render_target);
|
||||
|
||||
if (err)
|
||||
{
|
||||
grub_dprintf ("video", "GOP: Couldn't set FB target\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
err = grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,
|
||||
grub_video_fbstd_colors);
|
||||
|
||||
if (err)
|
||||
grub_dprintf ("video", "GOP: Couldn't set palette\n");
|
||||
else
|
||||
grub_dprintf ("video", "GOP: Success\n");
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_gop_swap_buffers (void)
|
||||
{
|
||||
/* TODO: Implement buffer swapping. */
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_gop_set_active_render_target (struct grub_video_render_target *target)
|
||||
{
|
||||
if (target == GRUB_VIDEO_RENDER_TARGET_DISPLAY)
|
||||
target = framebuffer.render_target;
|
||||
|
||||
return grub_video_fb_set_active_render_target (target);
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
grub_video_gop_get_info_and_fini (struct grub_video_mode_info *mode_info,
|
||||
void **framebuf)
|
||||
{
|
||||
grub_memcpy (mode_info, &(framebuffer.mode_info), sizeof (*mode_info));
|
||||
*framebuf = (char *) framebuffer.ptr;
|
||||
|
||||
grub_video_fb_fini ();
|
||||
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
static struct grub_video_adapter grub_video_gop_adapter =
|
||||
{
|
||||
.name = "EFI GOP driver",
|
||||
|
||||
.init = grub_video_gop_init,
|
||||
.fini = grub_video_gop_fini,
|
||||
.setup = grub_video_gop_setup,
|
||||
.get_info = grub_video_fb_get_info,
|
||||
.get_info_and_fini = grub_video_gop_get_info_and_fini,
|
||||
.set_palette = grub_video_fb_set_palette,
|
||||
.get_palette = grub_video_fb_get_palette,
|
||||
.set_viewport = grub_video_fb_set_viewport,
|
||||
.get_viewport = grub_video_fb_get_viewport,
|
||||
.map_color = grub_video_fb_map_color,
|
||||
.map_rgb = grub_video_fb_map_rgb,
|
||||
.map_rgba = grub_video_fb_map_rgba,
|
||||
.unmap_color = grub_video_fb_unmap_color,
|
||||
.fill_rect = grub_video_fb_fill_rect,
|
||||
.blit_bitmap = grub_video_fb_blit_bitmap,
|
||||
.blit_render_target = grub_video_fb_blit_render_target,
|
||||
.scroll = grub_video_fb_scroll,
|
||||
.swap_buffers = grub_video_gop_swap_buffers,
|
||||
.create_render_target = grub_video_fb_create_render_target,
|
||||
.delete_render_target = grub_video_fb_delete_render_target,
|
||||
.set_active_render_target = grub_video_gop_set_active_render_target,
|
||||
.get_active_render_target = grub_video_fb_get_active_render_target,
|
||||
|
||||
.next = 0
|
||||
};
|
||||
|
||||
GRUB_MOD_INIT(efi_fb)
|
||||
{
|
||||
if (check_protocol ())
|
||||
grub_video_register (&grub_video_gop_adapter);
|
||||
}
|
||||
|
||||
GRUB_MOD_FINI(efi_fb)
|
||||
{
|
||||
if (restore_needed)
|
||||
{
|
||||
efi_call_2 (gop->set_mode, gop, old_mode);
|
||||
restore_needed = 0;
|
||||
}
|
||||
if (gop)
|
||||
grub_video_unregister (&grub_video_gop_adapter);
|
||||
}
|
||||
Loading…
Reference in a new issue