coreboot: Split parts that are platform-independent.
We currently assume that coreboot is always i386, it's no longer the case, so split i386-coreboot parts from generic coreboot code.
This commit is contained in:
Vladimir Serbinenko
parent
d08c968514
commit
461bfab7b7
10 changed files with 99 additions and 55 deletions
190
grub-core/video/coreboot/cbfb.c
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190
grub-core/video/coreboot/cbfb.c
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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,
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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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#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/coreboot/lbio.h>
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#include <grub/machine/console.h>
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struct grub_linuxbios_table_framebuffer *grub_video_coreboot_fbtable;
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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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grub_uint8_t *ptr;
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} framebuffer;
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static grub_err_t
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grub_video_cbfb_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_cbfb_fill_mode_info (struct grub_video_mode_info *out)
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{
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grub_memset (out, 0, sizeof (*out));
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out->width = grub_video_coreboot_fbtable->width;
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out->height = grub_video_coreboot_fbtable->height;
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out->pitch = grub_video_coreboot_fbtable->pitch;
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out->red_field_pos = grub_video_coreboot_fbtable->red_field_pos;
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out->red_mask_size = grub_video_coreboot_fbtable->red_mask_size;
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out->green_field_pos = grub_video_coreboot_fbtable->green_field_pos;
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out->green_mask_size = grub_video_coreboot_fbtable->green_mask_size;
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out->blue_field_pos = grub_video_coreboot_fbtable->blue_field_pos;
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out->blue_mask_size = grub_video_coreboot_fbtable->blue_mask_size;
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out->reserved_field_pos = grub_video_coreboot_fbtable->reserved_field_pos;
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out->reserved_mask_size = grub_video_coreboot_fbtable->reserved_mask_size;
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out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
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out->bpp = grub_video_coreboot_fbtable->bpp;
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out->bytes_per_pixel = (grub_video_coreboot_fbtable->bpp + 7) / 8;
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out->number_of_colors = 256;
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out->blit_format = grub_video_get_blit_format (out);
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return GRUB_ERR_NONE;
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}
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static grub_err_t
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grub_video_cbfb_setup (unsigned int width, unsigned int height,
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unsigned int mode_type __attribute__ ((unused)),
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unsigned int mode_mask __attribute__ ((unused)))
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{
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grub_err_t err;
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if (!grub_video_coreboot_fbtable)
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return grub_error (GRUB_ERR_IO, "Couldn't find display device.");
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if (!((width == grub_video_coreboot_fbtable->width && height == grub_video_coreboot_fbtable->height)
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|| (width == 0 && height == 0)))
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return grub_error (GRUB_ERR_IO, "can't set mode %dx%d", width, height);
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err = grub_video_cbfb_fill_mode_info (&framebuffer.mode_info);
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if (err)
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{
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grub_dprintf ("video", "CBFB: couldn't fill mode info\n");
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return err;
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}
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framebuffer.ptr = (void *) (grub_addr_t) grub_video_coreboot_fbtable->lfb;
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grub_dprintf ("video", "CBFB: initialising FB @ %p %dx%dx%d\n",
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framebuffer.ptr, framebuffer.mode_info.width,
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framebuffer.mode_info.height, framebuffer.mode_info.bpp);
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err = grub_video_fb_setup (mode_type, mode_mask,
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&framebuffer.mode_info,
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framebuffer.ptr, NULL, NULL);
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if (err)
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return err;
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grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,
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grub_video_fbstd_colors);
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return err;
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}
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static grub_err_t
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grub_video_cbfb_get_info_and_fini (struct grub_video_mode_info *mode_info,
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void **framebuf)
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{
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grub_memcpy (mode_info, &(framebuffer.mode_info), sizeof (*mode_info));
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*framebuf = (char *) framebuffer.ptr;
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grub_video_fb_fini ();
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return GRUB_ERR_NONE;
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}
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static struct grub_video_adapter grub_video_cbfb_adapter =
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{
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.name = "Coreboot video driver",
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.prio = GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE_DIRTY,
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.id = GRUB_VIDEO_DRIVER_COREBOOT,
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.init = grub_video_cbfb_init,
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.fini = grub_video_fb_fini,
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.setup = grub_video_cbfb_setup,
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.get_info = grub_video_fb_get_info,
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.get_info_and_fini = grub_video_cbfb_get_info_and_fini,
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.set_palette = grub_video_fb_set_palette,
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.get_palette = grub_video_fb_get_palette,
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.set_viewport = grub_video_fb_set_viewport,
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.get_viewport = grub_video_fb_get_viewport,
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.set_region = grub_video_fb_set_region,
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.get_region = grub_video_fb_get_region,
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.set_area_status = grub_video_fb_set_area_status,
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.get_area_status = grub_video_fb_get_area_status,
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.map_color = grub_video_fb_map_color,
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.map_rgb = grub_video_fb_map_rgb,
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.map_rgba = grub_video_fb_map_rgba,
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.unmap_color = grub_video_fb_unmap_color,
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.fill_rect = grub_video_fb_fill_rect,
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.blit_bitmap = grub_video_fb_blit_bitmap,
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.blit_render_target = grub_video_fb_blit_render_target,
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.scroll = grub_video_fb_scroll,
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.swap_buffers = grub_video_fb_swap_buffers,
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.create_render_target = grub_video_fb_create_render_target,
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.delete_render_target = grub_video_fb_delete_render_target,
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.set_active_render_target = grub_video_fb_set_active_render_target,
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.get_active_render_target = grub_video_fb_get_active_render_target,
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.next = 0
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};
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static int
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iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
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void *data __attribute__ ((unused)))
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{
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if (table_item->tag != GRUB_LINUXBIOS_MEMBER_FRAMEBUFFER)
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return 0;
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grub_video_coreboot_fbtable = (struct grub_linuxbios_table_framebuffer *) (table_item + 1);
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return 1;
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}
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void
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grub_video_coreboot_fb_early_init (void)
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{
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grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
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}
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void
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grub_video_coreboot_fb_late_init (void)
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{
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if (grub_video_coreboot_fbtable)
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grub_video_register (&grub_video_cbfb_adapter);
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}
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void
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grub_video_coreboot_fb_fini (void)
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{
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if (grub_video_coreboot_fbtable)
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grub_video_unregister (&grub_video_cbfb_adapter);
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}
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