262 lines
7.2 KiB
C
262 lines
7.2 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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GRUB_MOD_LICENSE ("GPLv3+");
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struct hook_ctx
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{
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unsigned height, width, depth;
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struct grub_video_mode_info *current_mode;
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};
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static int
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hook (const struct grub_video_mode_info *info, void *hook_arg)
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{
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struct hook_ctx *ctx = hook_arg;
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if (ctx->height && ctx->width && (info->width != ctx->width || info->height != ctx->height))
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return 0;
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if (ctx->depth && info->bpp != ctx->depth)
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return 0;
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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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{
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if (ctx->current_mode && info->mode_number == ctx->current_mode->mode_number)
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grub_printf ("*");
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else
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grub_printf (" ");
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grub_printf (" 0x%03x ", info->mode_number);
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}
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grub_printf ("%4d x %4d x %2d (%4d) ", info->width, info->height, info->bpp,
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info->pitch);
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
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grub_xputs (_("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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/* TRANSLATORS: "Direct color" is a mode when the color components
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are written dirrectly into memory. */
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grub_printf_ (N_("Direct color, 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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/* TRANSLATORS: In "paletted color" mode you write the index of the color
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in the palette. Synonyms include "packed pixel". */
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grub_xputs (_("Paletted "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_YUV)
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grub_xputs (_("YUV "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PLANAR)
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/* TRANSLATORS: "Planar" is the video memory where you have to write
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in several different banks "plans" to control the different color
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components of the same pixel. */
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grub_xputs (_("Planar "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_HERCULES)
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grub_xputs (_("Hercules "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_CGA)
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grub_xputs (_("CGA "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_NONCHAIN4)
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/* TRANSLATORS: Non-chain 4 is a 256-color planar
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(unchained) video memory mode. */
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grub_xputs (_("Non-chain 4 "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP)
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grub_xputs (_("Monochrome "));
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if (info->mode_type & GRUB_VIDEO_MODE_TYPE_UNKNOWN)
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grub_xputs (_("Unknown video mode "));
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grub_xputs ("\n");
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return 0;
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}
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static void
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print_edid (struct grub_video_edid_info *edid_info)
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{
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unsigned int edid_width, edid_height;
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if (grub_video_edid_checksum (edid_info))
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{
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grub_puts_ (N_(" EDID checksum invalid"));
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grub_errno = GRUB_ERR_NONE;
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return;
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}
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grub_printf_ (N_(" EDID version: %u.%u\n"),
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edid_info->version, edid_info->revision);
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if (grub_video_edid_preferred_mode (edid_info, &edid_width, &edid_height)
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== GRUB_ERR_NONE)
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grub_printf_ (N_(" Preferred mode: %ux%u\n"), edid_width, edid_height);
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else
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{
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grub_printf_ (N_(" No preferred mode available\n"));
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grub_errno = GRUB_ERR_NONE;
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}
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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, char **args)
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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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struct hook_ctx ctx;
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ctx.height = ctx.width = ctx.depth = 0;
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if (argc)
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{
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char *ptr;
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ptr = args[0];
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ctx.width = grub_strtoul (ptr, &ptr, 0);
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if (grub_errno)
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return grub_errno;
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if (*ptr != 'x')
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return grub_error (GRUB_ERR_BAD_ARGUMENT,
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N_("invalid video mode specification `%s'"),
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args[0]);
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ptr++;
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ctx.height = grub_strtoul (ptr, &ptr, 0);
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if (grub_errno)
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return grub_errno;
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if (*ptr == 'x')
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{
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ptr++;
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ctx.depth = grub_strtoul (ptr, &ptr, 0);
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if (grub_errno)
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return grub_errno;
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}
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}
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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_puts_ (N_("List of supported video modes:"));
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grub_puts_ (N_("Legend: mask/position=red/green/blue/reserved"));
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FOR_VIDEO_ADAPTERS (adapter)
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{
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struct grub_video_mode_info info;
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struct grub_video_edid_info edid_info;
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grub_printf_ (N_("Adapter `%s':\n"), adapter->name);
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if (!adapter->iterate)
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{
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grub_puts_ (N_(" No info available"));
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continue;
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}
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ctx.current_mode = NULL;
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if (adapter->id == id)
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{
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if (grub_video_get_info (&info) == GRUB_ERR_NONE)
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ctx.current_mode = &info;
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else
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/* Don't worry about errors. */
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grub_errno = GRUB_ERR_NONE;
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}
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else
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{
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if (adapter->init ())
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{
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grub_puts_ (N_(" Failed to initialize video adapter"));
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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, &ctx);
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if (adapter->get_edid && adapter->get_edid (&edid_info) == GRUB_ERR_NONE)
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print_edid (&edid_info);
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else
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grub_errno = GRUB_ERR_NONE;
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ctx.current_mode = NULL;
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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,
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/* TRANSLATORS: "x" has to be entered in,
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like an identifier, so please don't
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use better Unicode codepoints. */
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N_("[WxH[xD]]"),
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N_("List available video modes. If "
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"resolution is given show only modes"
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" matching it."));
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#ifdef GRUB_MACHINE_PCBIOS
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cmd_vbe = grub_register_command ("vbeinfo", grub_cmd_videoinfo,
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/* TRANSLATORS: "x" has to be entered in,
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like an identifier, so please don't
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use better Unicode codepoints. */
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N_("[WxH[xD]]"),
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N_("List available video modes. If "
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"resolution is given show only modes"
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" matching it."));
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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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