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2009-06-04 Vladimir Serbinenko <phcoder@gmail.com>

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gfxpayload support

	* commands/videotest.c (grub_cmd_videotest): use grub_video_set_mode
	* include/grub/video.h (GRUB_VIDEO_MODE_TYPE_PURE_TEXT): new definition
	(grub_video_setup): remove
	(grub_video_set_mode): new prototype
	* loader/i386/linux.c (DEFAULT_VIDEO_MODE): new definition
	(vid_mode): remove
	(linux_vesafb_res): compile only on PCBIOS
	(grub_linux_boot): support gfxpayload
	* loader/i386/pc/xnu.c (video_hook): new function
	(grub_xnu_set_video): support gfxpayload
	* term/gfxterm.c (DEFAULT_VIDEO_WIDTH): removed
	(DEFAULT_VIDEO_HEIGHT): likewise
	(DEFAULT_VIDEO_FLAGS): likewise
	(DEFAULT_VIDEO_MODE): new definition
	(video_hook): new function
	(grub_gfxterm_init): use grub_video_set_mode
	* util/grub.d/30_os-prober.in: remove explicit modesetting before 
	loading xnu
	* video/video.c (grub_video_setup): removed
	(grub_video_set_mode): new function based on grub_gfxterm_init and 
	grub_video_setup
This commit is contained in:
phcoder 2009-06-04 18:22:45 +00:00
parent fd8c967c29
commit 3eb5ed4ec0
8 changed files with 480 additions and 338 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
ChangeLog
View file

@ -1,3 +1,29 @@
2009-06-04 Vladimir Serbinenko <phcoder@gmail.com>
gfxpayload support
* commands/videotest.c (grub_cmd_videotest): use grub_video_set_mode
* include/grub/video.h (GRUB_VIDEO_MODE_TYPE_PURE_TEXT): new definition
(grub_video_setup): remove
(grub_video_set_mode): new prototype
* loader/i386/linux.c (DEFAULT_VIDEO_MODE): new definition
(vid_mode): remove
(linux_vesafb_res): compile only on PCBIOS
(grub_linux_boot): support gfxpayload
* loader/i386/pc/xnu.c (video_hook): new function
(grub_xnu_set_video): support gfxpayload
* term/gfxterm.c (DEFAULT_VIDEO_WIDTH): removed
(DEFAULT_VIDEO_HEIGHT): likewise
(DEFAULT_VIDEO_FLAGS): likewise
(DEFAULT_VIDEO_MODE): new definition
(video_hook): new function
(grub_gfxterm_init): use grub_video_set_mode
* util/grub.d/30_os-prober.in: remove explicit modesetting before
loading xnu
* video/video.c (grub_video_setup): removed
(grub_video_set_mode): new function based on grub_gfxterm_init and
grub_video_setup
2009-06-04 Vladimir Serbinenko <phcoder@gmail.com>
Avoid calling biosdisk in drivemap

3
commands/videotest.c
View file

@ -30,8 +30,7 @@ grub_cmd_videotest (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
if (grub_video_setup (1024, 768,
GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) != GRUB_ERR_NONE)
if (grub_video_set_mode ("1024x768;800x600;640x480", 0) != GRUB_ERR_NONE)
return grub_errno;
grub_video_color_t color;

8
include/grub/video.h
View file

@ -34,6 +34,7 @@ struct grub_video_render_target;
struct grub_video_bitmap;
/* Defines used to describe video mode or rendering target. */
#define GRUB_VIDEO_MODE_TYPE_PURE_TEXT 0x00000040
#define GRUB_VIDEO_MODE_TYPE_ALPHA 0x00000020
#define GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED 0x00000010
#define GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP 0x00000004
@ -236,9 +237,6 @@ void grub_video_register (grub_video_adapter_t adapter);
void grub_video_unregister (grub_video_adapter_t adapter);
void grub_video_iterate (int (*hook) (grub_video_adapter_t adapter));
grub_err_t grub_video_setup (unsigned int width, unsigned int height,
unsigned int mode_type);
grub_err_t grub_video_restore (void);
grub_err_t grub_video_get_info (struct grub_video_mode_info *mode_info);
@ -299,4 +297,8 @@ grub_err_t grub_video_set_active_render_target (struct grub_video_render_target
grub_err_t grub_video_get_active_render_target (struct grub_video_render_target **target);
grub_err_t grub_video_set_mode (char *modestring,
int NESTED_FUNC_ATTR (*hook) (grub_video_adapter_t p,
struct grub_video_mode_info *mode_info));
#endif /* ! GRUB_VIDEO_HEADER */

115
loader/i386/linux.c
View file

@ -43,8 +43,10 @@
into Linux, and therefore can benefit from seamless mode transition between
GRUB and Linux (saving boot time and visual glitches). Official GRUB, OTOH,
needs to be conservative. */
#ifndef GRUB_ASSUME_LINUX_HAS_FB_SUPPORT
#define GRUB_ASSUME_LINUX_HAS_FB_SUPPORT 0
#ifdef GRUB_ASSUME_LINUX_HAS_FB_SUPPORT
#define DEFAULT_VIDEO_MODE "keep,1024x768,800x600,640x480"
#else
#define DEFAULT_VIDEO_MODE "text"
#endif
static grub_dl_t my_mod;
@ -94,8 +96,7 @@ static struct idt_descriptor idt_desc =
0
};
static grub_uint16_t vid_mode;
#ifdef GRUB_MACHINE_PCBIOS
struct linux_vesafb_res
{
grub_uint16_t width;
@ -262,6 +263,7 @@ struct linux_vesafb_mode linux_vesafb_modes[] =
{ VGA_800_500, 24 }, /* 0x372 */
{ VGA_800_500, 32 }, /* 0x373 */
};
#endif
static inline grub_size_t
page_align (grub_size_t size)
@ -442,49 +444,37 @@ grub_linux_boot (void)
{
struct linux_kernel_params *params;
int e820_num;
grub_err_t err;
char *modevar, *tmp;
params = real_mode_mem;
if (vid_mode == GRUB_LINUX_VID_MODE_NORMAL || vid_mode == GRUB_LINUX_VID_MODE_EXTENDED)
grub_video_restore ();
else if (vid_mode)
modevar = grub_env_get ("gfxpayload");
/* Now all graphical modes are acceptable.
May change in future if we have modes without framebuffer. */
if (modevar && *modevar != 0)
{
struct linux_vesafb_mode *linux_mode;
int depth, flags;
flags = 0;
linux_mode = &linux_vesafb_modes[vid_mode - GRUB_LINUX_VID_MODE_VESA_START];
depth = linux_mode->depth;
/* If we have 8 or less bits, then assume that it is indexed color mode. */
if ((depth <= 8) && (depth != -1))
flags |= GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
/* We have more than 8 bits, then assume that it is RGB color mode. */
if (depth > 8)
flags |= GRUB_VIDEO_MODE_TYPE_RGB;
/* If user requested specific depth, forward that information to driver. */
if (depth != -1)
flags |= (depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
/* Try to initialize requested mode. */
if (grub_video_setup (linux_vesafb_res[linux_mode->res_index].width,
linux_vesafb_res[linux_mode->res_index].height,
flags) != GRUB_ERR_NONE)
{
grub_printf ("Unable to initialize requested video mode (vga=0x%x)\n", vid_mode);
tmp = grub_malloc (grub_strlen (modevar)
+ sizeof (DEFAULT_VIDEO_MODE) + 1);
if (! tmp)
return grub_errno;
grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
err = grub_video_set_mode (tmp, 0);
grub_free (tmp);
}
}
#if ! GRUB_ASSUME_LINUX_HAS_FB_SUPPORT
#ifndef GRUB_ASSUME_LINUX_HAS_FB_SUPPORT
else
/* If user didn't request a video mode, and we can't assume Linux supports FB,
then we go back to text mode. */
grub_video_restore ();
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0);
#endif
if (err)
{
grub_print_error ();
grub_printf ("Booting however\n");
grub_errno = GRUB_ERR_NONE;
}
if (! grub_linux_setup_video (params))
params->have_vga = GRUB_VIDEO_TYPE_VLFB;
else
@ -708,7 +698,6 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
(unsigned) real_size, (unsigned) prot_size);
/* Look for memory size and video mode specified on the command line. */
vid_mode = 0;
linux_mem_size = 0;
for (i = 1; i < argc; i++)
#ifdef GRUB_MACHINE_PCBIOS
@ -716,6 +705,10 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
{
/* Video mode selection support. */
char *val = argv[i] + 4;
unsigned vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
struct linux_vesafb_mode *linux_mode;
grub_err_t err;
char *buf;
if (grub_strcmp (val, "normal") == 0)
vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
@ -737,21 +730,57 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
switch (vid_mode)
{
case 0:
vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
case GRUB_LINUX_VID_MODE_NORMAL:
grub_env_set ("gfxpayload", "text");
grub_printf ("%s is deprecated. "
"Use set gfxpayload=text before "
"linux command instead.\n",
argv[i]);
break;
case 1:
vid_mode = GRUB_LINUX_VID_MODE_EXTENDED;
case GRUB_LINUX_VID_MODE_EXTENDED:
/* FIXME: support 80x50 text. */
grub_env_set ("gfxpayload", "text");
grub_printf ("%s is deprecated. "
"Use set gfxpayload=text before "
"linux command instead.\n",
argv[i]);
break;
default:
/* Ignore invalid values. */
if (vid_mode < GRUB_LINUX_VID_MODE_VESA_START ||
vid_mode >= GRUB_LINUX_VID_MODE_VESA_START +
ARRAY_SIZE (linux_vesafb_modes))
vid_mode = 0;
{
grub_env_set ("gfxpayload", "text");
grub_printf ("%s is deprecated. Mode %d isn't recognized. "
"Use set gfxpayload=WIDTHxHEIGHT[xDEPTH] before "
"linux command instead.\n",
argv[i], vid_mode);
break;
}
if (grub_errno)
buf = grub_malloc (20);
if (! buf)
goto fail;
linux_mode
= &linux_vesafb_modes[vid_mode - GRUB_LINUX_VID_MODE_VESA_START];
grub_sprintf (buf, "%dx%dx%d",
linux_vesafb_res[linux_mode->res_index].width,
linux_vesafb_res[linux_mode->res_index].height,
linux_mode->depth);
grub_printf ("%s is deprecated. "
"Use set gfxpayload=%s before "
"linux command instead.\n",
argv[i], buf);
err = grub_env_set ("gfxpayload", buf);
grub_free (buf);
if (err)
goto fail;
}
}
else
#endif /* GRUB_MACHINE_PCBIOS */

31
loader/i386/pc/xnu.c
View file

@ -19,6 +19,7 @@
#include <grub/env.h>
#include <grub/misc.h>
#include <grub/xnu.h>
#include <grub/mm.h>
#include <grub/cpu/xnu.h>
#include <grub/machine/vbe.h>
#include <grub/machine/vga.h>
@ -26,6 +27,17 @@
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define DEFAULT_VIDEO_MODE "1024x768x32,800x600x32,640x480x32"
static int NESTED_FUNC_ATTR video_hook (grub_video_adapter_t p __attribute__ ((unused)),
struct grub_video_mode_info *info)
{
if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
return 0;
return 1;
}
/* Setup video for xnu. */
grub_err_t
grub_xnu_set_video (struct grub_xnu_boot_params *params)
@ -34,8 +46,27 @@ grub_xnu_set_video (struct grub_xnu_boot_params *params)
struct grub_video_render_target *render_target;
int ret;
int x,y;
char *tmp, *modevar;
grub_err_t err;
modevar = grub_env_get ("gfxpayload");
if (! modevar || *modevar == 0)
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, video_hook);
else
{
tmp = grub_malloc (grub_strlen (modevar)
+ sizeof (DEFAULT_VIDEO_MODE) + 1);
if (! tmp)
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"couldn't allocate temporary storag");
grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
err = grub_video_set_mode (tmp, video_hook);
grub_free (tmp);
}
if (err)
return err;
ret = grub_video_get_info (&mode_info);
if (ret)
return grub_error (GRUB_ERR_IO, "couldn't retrieve video parameters");

250
term/gfxterm.c
View file

@ -27,10 +27,7 @@
#include <grub/bitmap.h>
#include <grub/command.h>
#define DEFAULT_VIDEO_WIDTH 640
#define DEFAULT_VIDEO_HEIGHT 480
#define DEFAULT_VIDEO_FLAGS 0
#define DEFAULT_VIDEO_MODE "1024x768,800x600,640x480"
#define DEFAULT_BORDER_WIDTH 10
#define DEFAULT_STANDARD_COLOR 0x07
@ -231,16 +228,22 @@ grub_virtual_screen_setup (unsigned int x, unsigned int y,
return grub_errno;
}
static int NESTED_FUNC_ATTR video_hook (grub_video_adapter_t p __attribute__ ((unused)),
struct grub_video_mode_info *info)
{
return ! (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT);
}
static grub_err_t
grub_gfxterm_init (void)
{
char *font_name;
char *modevar;
int width = DEFAULT_VIDEO_WIDTH;
int height = DEFAULT_VIDEO_HEIGHT;
int depth = -1;
int flags = DEFAULT_VIDEO_FLAGS;
char *tmp;
grub_video_color_t color;
int width;
int height;
grub_err_t err;
/* Select the font to use. */
font_name = grub_env_get ("gfxterm_font");
@ -249,231 +252,24 @@ grub_gfxterm_init (void)
/* Parse gfxmode environment variable if set. */
modevar = grub_env_get ("gfxmode");
if (modevar)
{
char *tmp;
char *next_mode;
char *current_mode;
char *param;
char *value;
int mode_found = 0;
/* Take copy of env.var. as we don't want to modify that. */
tmp = grub_strdup (modevar);
modevar = tmp;
if (grub_errno != GRUB_ERR_NONE)
return grub_errno;
/* Initialize next mode. */
next_mode = modevar;
/* Loop until all modes has been tested out. */
while (next_mode != NULL)
{
/* Use last next_mode as current mode. */
tmp = next_mode;
/* Reset video mode settings. */
width = DEFAULT_VIDEO_WIDTH;
height = DEFAULT_VIDEO_HEIGHT;
depth = -1;
flags = DEFAULT_VIDEO_FLAGS;
/* Save position of next mode and separate modes. */
next_mode = grub_strchr(next_mode, ';');
if (next_mode)
{
*next_mode = 0;
next_mode++;
}
/* Skip whitespace. */
while (grub_isspace (*tmp))
tmp++;
/* Initialize token holders. */
current_mode = tmp;
param = tmp;
value = NULL;
/* Parse <width>x<height>[x<depth>]*/
/* Find width value. */
value = param;
param = grub_strchr(param, 'x');
if (param == NULL)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
*param = 0;
param++;
width = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
/* Find height value. */
value = param;
param = grub_strchr(param, 'x');
if (param == NULL)
{
height = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
}
if (! modevar || *modevar == 0)
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, video_hook);
else
{
/* We have optional color depth value. */
*param = 0;
param++;
height = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
tmp = grub_malloc (grub_strlen (modevar)
+ sizeof (DEFAULT_VIDEO_MODE) + 1);
grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
err = grub_video_set_mode (tmp, video_hook);
grub_free (tmp);
}
/* Convert color depth value. */
value = param;
depth = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
}
/* Try out video mode. */
/* If we have 8 or less bits, then assume that it is indexed color mode. */
if ((depth <= 8) && (depth != -1))
flags |= GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
/* We have more than 8 bits, then assume that it is RGB color mode. */
if (depth > 8)
flags |= GRUB_VIDEO_MODE_TYPE_RGB;
/* If user requested specific depth, forward that information to driver. */
if (depth != -1)
flags |= (depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
/* Try to initialize requested mode. Ignore any errors. */
grub_error_push ();
if (grub_video_setup (width, height, flags) != GRUB_ERR_NONE)
{
grub_error_pop ();
continue;
}
if (err)
return err;
err = grub_video_get_info (&mode_info);
/* Figure out what mode we ended up. */
if (grub_video_get_info (&mode_info) != GRUB_ERR_NONE)
{
/* Couldn't get video mode info, restore old mode and continue to next one. */
grub_error_pop ();
grub_video_restore ();
continue;
}
/* Restore state of error stack. */
grub_error_pop ();
/* Mode found! Exit loop. */
mode_found = 1;
break;
}
/* Free memory. */
grub_free (modevar);
if (!mode_found)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"No suitable mode found.");
}
else
{
/* No gfxmode variable set, use defaults. */
/* If we have 8 or less bits, then assume that it is indexed color mode. */
if ((depth <= 8) && (depth != -1))
flags |= GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
/* We have more than 8 bits, then assume that it is RGB color mode. */
if (depth > 8)
flags |= GRUB_VIDEO_MODE_TYPE_RGB;
/* If user requested specific depth, forward that information to driver. */
if (depth != -1)
flags |= (depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
/* Initialize user requested mode. */
if (grub_video_setup (width, height, flags) != GRUB_ERR_NONE)
return grub_errno;
/* Figure out what mode we ended up. */
if (grub_video_get_info (&mode_info) != GRUB_ERR_NONE)
{
grub_video_restore ();
return grub_errno;
}
}
if (err)
return err;
/* Make sure screen is black. */
color = grub_video_map_rgb (0, 0, 0);

3
util/grub.d/30_os-prober.in
View file

@ -90,9 +90,6 @@ EOF
menuentry "${LONGNAME} (on ${DEVICE})" {
set root=${OSXROOT}
insmod vbe
insmod gfxterm
gfxmode="1024x768x32;800x600x32"
terminal_output gfxterm
do_resume=0
if [ /var/vm/sleepimage -nt10 / ]; then
if xnu_resume /var/vm/sleepimage; then

368
video/video.c
View file

@ -19,6 +19,8 @@
#include <grub/video.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
/* The list of video adapters registered to system. */
static grub_video_adapter_t grub_video_adapter_list;
@ -59,59 +61,6 @@ grub_video_iterate (int (*hook) (grub_video_adapter_t adapter))
break;
}
/* Setup specified video mode. */
grub_err_t
grub_video_setup (unsigned int width, unsigned int height,
unsigned int mode_type)
{
grub_video_adapter_t p;
/* De-activate last set video adapter. */
if (grub_video_adapter_active)
{
/* Finalize adapter. */
grub_video_adapter_active->fini ();
if (grub_errno != GRUB_ERR_NONE)
return grub_errno;
/* Mark active adapter as not set. */
grub_video_adapter_active = 0;
}
/* Loop thru all possible video adapter trying to find requested mode. */
for (p = grub_video_adapter_list; p; p = p->next)
{
/* Try to initialize adapter, if it fails, skip to next adapter. */
p->init ();
if (grub_errno != GRUB_ERR_NONE)
{
grub_errno = GRUB_ERR_NONE;
continue;
}
/* Try to initialize video mode. */
p->setup (width, height, mode_type);
if (grub_errno == GRUB_ERR_NONE)
{
/* Valid mode found from adapter, and it has been activated.
Specify it as active adapter. */
grub_video_adapter_active = p;
return GRUB_ERR_NONE;
}
else
grub_errno = GRUB_ERR_NONE;
/* No valid mode found in this adapter, finalize adapter. */
p->fini ();
if (grub_errno != GRUB_ERR_NONE)
return grub_errno;
}
/* We couldn't find suitable adapter for specified mode. */
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
"Can't locate valid adapter for mode");
}
/* Restore back to initial mode (where applicable). */
grub_err_t
grub_video_restore (void)
@ -430,6 +379,319 @@ grub_video_get_active_render_target (struct grub_video_render_target **target)
return grub_video_adapter_active->get_active_render_target (target);
}
grub_err_t
grub_video_set_mode (char *modestring,
int NESTED_FUNC_ATTR (*hook) (grub_video_adapter_t p,
struct grub_video_mode_info *mode_info))
{
char *tmp;
char *next_mode;
char *current_mode;
char *param;
char *value;
char *modevar;
int width = -1;
int height = -1;
int depth = -1;
int flags = 0;
/* Take copy of env.var. as we don't want to modify that. */
modevar = grub_strdup (modestring);
/* Initialize next mode. */
next_mode = modevar;
if (! modevar)
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"couldn't allocate space for local modevar copy");
if (grub_memcmp (next_mode, "keep", sizeof ("keep")) == 0
|| grub_memcmp (next_mode, "keep,", sizeof ("keep,") - 1) == 0
|| grub_memcmp (next_mode, "keep;", sizeof ("keep;") - 1) == 0)
{
struct grub_video_mode_info mode_info;
int suitable = 1;
grub_err_t err;
grub_memset (&mode_info, 0, sizeof (mode_info));
if (grub_video_adapter_active)
{
err = grub_video_get_info (&mode_info);
if (err)
{
suitable = 0;
grub_errno = GRUB_ERR_NONE;
}
}
else
mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_PURE_TEXT;
if (suitable && hook)
suitable = hook (grub_video_adapter_active, &mode_info);
if (suitable)
{
grub_free (modevar);
return GRUB_ERR_NONE;
}
next_mode += sizeof ("keep") - 1;
if (! *next_mode)
{
grub_free (modevar);
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"No suitable mode found.");
}
/* Skip separator. */
next_mode++;
}
/* De-activate last set video adapter. */
if (grub_video_adapter_active)
{
/* Finalize adapter. */
grub_video_adapter_active->fini ();
if (grub_errno != GRUB_ERR_NONE)
grub_errno = GRUB_ERR_NONE;
/* Mark active adapter as not set. */
grub_video_adapter_active = 0;
}
/* Loop until all modes has been tested out. */
while (next_mode != NULL)
{
/* Use last next_mode as current mode. */
tmp = next_mode;
/* Reset video mode settings. */
width = -1;
height = -1;
depth = -1;
flags = 0;
/* Save position of next mode and separate modes. */
for (; *next_mode; next_mode++)
if (*next_mode == ',' || *next_mode == ';')
break;
if (*next_mode)
{
*next_mode = 0;
next_mode++;
}
else
next_mode = 0;
/* Skip whitespace. */
while (grub_isspace (*tmp))
tmp++;
/* Initialize token holders. */
current_mode = tmp;
param = tmp;
value = NULL;
/* XXX: we assume that we're in pure text mode if
no video mode is initialized. Is it always true? */
if (grub_strcmp (param, "text") == 0)
{
struct grub_video_mode_info mode_info;
grub_memset (&mode_info, 0, sizeof (mode_info));
mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_PURE_TEXT;
if (! hook || hook (0, &mode_info))
{
/* Valid mode found from adapter, and it has been activated.
Specify it as active adapter. */
grub_video_adapter_active = NULL;
/* Free memory. */
grub_free (modevar);
return GRUB_ERR_NONE;
}
}
/* Parse <width>x<height>[x<depth>]*/
/* Find width value. */
value = param;
param = grub_strchr(param, 'x');
if (param == NULL)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
*param = 0;
param++;
width = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
/* Find height value. */
value = param;
param = grub_strchr(param, 'x');
if (param == NULL)
{
height = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
}
else
{
/* We have optional color depth value. */
*param = 0;
param++;
height = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
/* Convert color depth value. */
value = param;
depth = grub_strtoul (value, 0, 0);
if (grub_errno != GRUB_ERR_NONE)
{
grub_err_t rc;
/* First setup error message. */
rc = grub_error (GRUB_ERR_BAD_ARGUMENT,
"Invalid mode: %s\n",
current_mode);
/* Free memory before returning. */
grub_free (modevar);
return rc;
}
}
/* Try out video mode. */
/* If we have 8 or less bits, then assume that it is indexed color mode. */
if ((depth <= 8) && (depth != -1))
flags |= GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
/* We have more than 8 bits, then assume that it is RGB color mode. */
if (depth > 8)
flags |= GRUB_VIDEO_MODE_TYPE_RGB;
/* If user requested specific depth, forward that information to driver. */
if (depth != -1)
flags |= (depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
/* Try to initialize requested mode. Ignore any errors. */
grub_video_adapter_t p;
/* Loop thru all possible video adapter trying to find requested mode. */
for (p = grub_video_adapter_list; p; p = p->next)
{
grub_err_t err;
struct grub_video_mode_info mode_info;
grub_memset (&mode_info, 0, sizeof (mode_info));
/* Try to initialize adapter, if it fails, skip to next adapter. */
err = p->init ();
if (err != GRUB_ERR_NONE)
{
grub_errno = GRUB_ERR_NONE;
continue;
}
/* Try to initialize video mode. */
err = p->setup (width, height, flags);
if (err != GRUB_ERR_NONE)
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
err = p->get_info (&mode_info);
if (err != GRUB_ERR_NONE)
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
if (hook && ! hook (p, &mode_info))
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
/* Valid mode found from adapter, and it has been activated.
Specify it as active adapter. */
grub_video_adapter_active = p;
/* Free memory. */
grub_free (modevar);
return GRUB_ERR_NONE;
}
}
/* Free memory. */
grub_free (modevar);
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"No suitable mode found.");
}
/* Initialize Video API module. */
GRUB_MOD_INIT(video_video)
{