151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/* videoinfo.c - command to list video modes. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2007,2008,2009,2010 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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#include <grub/video.h>
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#include <grub/dl.h>
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#include <grub/env.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/command.h>
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#include <grub/i18n.h>
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static int
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hook (const struct grub_video_mode_info *info)
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{
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if (info->mode_number == GRUB_VIDEO_MODE_NUMBER_INVALID)
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grub_printf (" ");
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else
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grub_printf (" 0x%03x ", info->mode_number);
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grub_printf ("%4d x %4d x %2d ", info->width, info->height, info->bpp);
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
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grub_printf ("Text-only ");
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/* Show mask and position details for direct color modes. */
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_RGB)
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grub_printf ("Direct, mask: %d/%d/%d/%d pos: %d/%d/%d/%d",
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info->red_mask_size,
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info->green_mask_size,
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info->blue_mask_size,
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info->reserved_mask_size,
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info->red_field_pos,
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info->green_field_pos,
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info->blue_field_pos,
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info->reserved_field_pos);
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
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grub_printf ("Packed ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_YUV)
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grub_printf ("YUV ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PLANAR)
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grub_printf ("Planar ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_HERCULES)
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grub_printf ("Hercules ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_CGA)
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grub_printf ("CGA ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_NONCHAIN4)
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grub_printf ("Non-chain 4 ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP)
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grub_printf ("Monochrome ");
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_UNKNOWN)
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grub_printf ("Unknown ");
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grub_printf ("\n");
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return 0;
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}
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static grub_err_t
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grub_cmd_videoinfo (grub_command_t cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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char **args __attribute__ ((unused)))
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{
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grub_video_adapter_t adapter;
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grub_video_driver_id_t id;
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#ifdef GRUB_MACHINE_PCBIOS
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if (grub_strcmp (cmd->name, "vbeinfo") == 0)
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grub_dl_load ("vbe");
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#endif
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id = grub_video_get_driver_id ();
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grub_printf ("List of supported video modes:\n");
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grub_printf ("Legend: P=Packed pixel, D=Direct color, "
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"mask/pos=R/G/B/reserved\n");
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FOR_VIDEO_ADAPTERS (adapter)
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{
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grub_printf ("Adapter '%s':\n", adapter->name);
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if (!adapter->iterate)
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{
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grub_printf (" No info available\n");
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continue;
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}
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if (adapter->id != id)
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{
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if (adapter->init ())
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{
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grub_printf (" Failed\n");
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grub_errno = GRUB_ERR_NONE;
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continue;
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}
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}
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if (adapter->print_adapter_specific_info)
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adapter->print_adapter_specific_info ();
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adapter->iterate (hook);
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if (adapter->id != id)
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{
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if (adapter->fini ())
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{
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grub_errno = GRUB_ERR_NONE;
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continue;
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}
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}
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}
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return GRUB_ERR_NONE;
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}
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static grub_command_t cmd;
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#ifdef GRUB_MACHINE_PCBIOS
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static grub_command_t cmd_vbe;
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#endif
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GRUB_MOD_INIT(videoinfo)
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{
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cmd = grub_register_command ("videoinfo", grub_cmd_videoinfo, 0,
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N_("List available video modes."));
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#ifdef GRUB_MACHINE_PCBIOS
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cmd_vbe = grub_register_command ("vbeinfo", grub_cmd_videoinfo, 0,
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N_("List available video modes."));
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#endif
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}
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GRUB_MOD_FINI(videoinfo)
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{
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grub_unregister_command (cmd);
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#ifdef GRUB_MACHINE_PCBIOS
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grub_unregister_command (cmd_vbe);
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#endif
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}
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