[grub2.git] / grub-core / video / efi_gop.c

/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2005,2006,2007,2008,2009  Free Software Foundation, Inc.
 *
 *  GRUB is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  GRUB is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
 */

#define grub_video_render_target grub_video_fbrender_target

#include <grub/err.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/video.h>
#include <grub/video_fb.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
#include <grub/efi/graphics_output.h>

static grub_efi_guid_t graphics_output_guid = GRUB_EFI_GOP_GUID;
static struct grub_efi_gop *gop;
static unsigned old_mode;
static int restore_needed;

static struct
{
  struct grub_video_mode_info mode_info;
  struct grub_video_render_target *render_target;
  grub_uint8_t *ptr;
} framebuffer;


static int
check_protocol (void)
{
  gop = grub_efi_locate_protocol (&graphics_output_guid, 0);
  if (gop)
    return 1;

  return 0;
}

static grub_err_t
grub_video_gop_init (void)
{
  grub_memset (&framebuffer, 0, sizeof(framebuffer));
  return grub_video_fb_init ();
}

static grub_err_t
grub_video_gop_fini (void)
{
  if (restore_needed)
    {
      efi_call_2 (gop->set_mode, gop, old_mode);
      restore_needed = 0;
    }
  return grub_video_fb_fini ();
}

static int
grub_video_gop_get_bpp (struct grub_efi_gop_mode_info *in)
{
  grub_uint32_t total_mask;
  int i;
  switch (in->pixel_format)
    {
    case GRUB_EFI_GOT_BGRA8:
    case GRUB_EFI_GOT_RGBA8:
      return 32;

    case GRUB_EFI_GOT_BITMASK:
      /* Check overlaps.  */
      if ((in->pixel_bitmask.r & in->pixel_bitmask.g)
	  || (in->pixel_bitmask.r & in->pixel_bitmask.b)
	  || (in->pixel_bitmask.g & in->pixel_bitmask.b)
	  || (in->pixel_bitmask.r & in->pixel_bitmask.a)
	  || (in->pixel_bitmask.g & in->pixel_bitmask.a)
	  || (in->pixel_bitmask.b & in->pixel_bitmask.a))
	return 0;

      total_mask = in->pixel_bitmask.r | in->pixel_bitmask.g
	| in->pixel_bitmask.b | in->pixel_bitmask.a;

      for (i = 31; i >= 0; i--)
	if (total_mask & (1 << i))
	  return i + 1;

      /* Fall through.  */
    default:
      return 0;
    }
}

static void
grub_video_gop_get_bitmask (grub_uint32_t mask, unsigned int *mask_size,
			    unsigned int *field_pos)
{
  int i;
  int last_p;
  for (i = 31; i >= 0; i--)
    if (mask & (1 << i))
      break;
  if (i == -1)
    {
      *mask_size = *field_pos = 0;
      return;
    }
  last_p = i;
  for (; i >= 0; i--)
    if (!(mask & (1 << i)))
      break;
  *field_pos = i + 1;
  *mask_size = last_p - *field_pos + 1;
}

static grub_err_t
grub_video_gop_fill_mode_info (struct grub_efi_gop_mode_info *in,
			       struct grub_video_mode_info *out)
{
  out->number_of_colors = 256;
  out->width = in->width;
  out->height = in->height;
  out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
  out->bpp = grub_video_gop_get_bpp (in);
  out->bytes_per_pixel = out->bpp >> 3;
  if (!out->bpp)
    return grub_error (GRUB_ERR_IO, "unsupported video mode");
  out->pitch = in->pixels_per_scanline * out->bytes_per_pixel;

  switch (in->pixel_format)
    {
    case GRUB_EFI_GOT_RGBA8:
      out->red_mask_size = 8;
      out->red_field_pos = 0;
      out->green_mask_size = 8;
      out->green_field_pos = 8;
      out->blue_mask_size = 8;
      out->blue_field_pos = 16;
      out->reserved_mask_size = 8;
      out->reserved_field_pos = 24;
      break;

    case GRUB_EFI_GOT_BGRA8:
      out->red_mask_size = 8;
      out->red_field_pos = 16;
      out->green_mask_size = 8;
      out->green_field_pos = 8;
      out->blue_mask_size = 8;
      out->blue_field_pos = 0;
      out->reserved_mask_size = 8;
      out->reserved_field_pos = 24;
      break;

    case GRUB_EFI_GOT_BITMASK:
      grub_video_gop_get_bitmask (in->pixel_bitmask.r, &out->red_mask_size,
				  &out->red_field_pos);
      grub_video_gop_get_bitmask (in->pixel_bitmask.g, &out->green_mask_size,
				  &out->green_field_pos);
      grub_video_gop_get_bitmask (in->pixel_bitmask.b, &out->blue_mask_size,
				  &out->blue_field_pos);
      grub_video_gop_get_bitmask (in->pixel_bitmask.a, &out->reserved_mask_size,
				  &out->reserved_field_pos);
      break;

    default:
      return grub_error (GRUB_ERR_IO, "unsupported video mode");
    }

  out->blit_format = grub_video_get_blit_format (out);
  return GRUB_ERR_NONE;
}

static grub_err_t
grub_video_gop_setup (unsigned int width, unsigned int height,
		      unsigned int mode_type, unsigned int mode_mask __attribute__ ((unused)))
{
  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 *) (grub_addr_t) 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",
    .id = GRUB_VIDEO_DRIVER_EFI_GOP,

    .prio = GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE,

    .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_gop)
{
  if (check_protocol ())
    grub_video_register (&grub_video_gop_adapter);
}

GRUB_MOD_FINI(efi_gop)
{
  if (restore_needed)
    {
      efi_call_2 (gop->set_mode, gop, old_mode);
      restore_needed = 0;
    }
  if (gop)
    grub_video_unregister (&grub_video_gop_adapter);
}
Commit	Line	Data
1708050b VS	1	/*
	2	* GRUB -- GRand Unified Bootloader
	3	* Copyright (C) 2005,2006,2007,2008,2009 Free Software Foundation, Inc.
	4	*
	5	* GRUB is free software: you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation, either version 3 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* GRUB is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
	17	*/
	18
	19	#define grub_video_render_target grub_video_fbrender_target
	20
	21	#include <grub/err.h>
	22	#include <grub/types.h>
	23	#include <grub/dl.h>
	24	#include <grub/misc.h>
	25	#include <grub/mm.h>
	26	#include <grub/video.h>
	27	#include <grub/video_fb.h>
	28	#include <grub/efi/api.h>
	29	#include <grub/efi/efi.h>
	30	#include <grub/efi/graphics_output.h>
	31
	32	static grub_efi_guid_t graphics_output_guid = GRUB_EFI_GOP_GUID;
	33	static struct grub_efi_gop *gop;
	34	static unsigned old_mode;
	35	static int restore_needed;
	36
	37	static struct
	38	{
	39	struct grub_video_mode_info mode_info;
	40	struct grub_video_render_target *render_target;
	41	grub_uint8_t *ptr;
	42	} framebuffer;
	43
	44
	45	static int
	46	check_protocol (void)
	47	{
	48	gop = grub_efi_locate_protocol (&graphics_output_guid, 0);
	49	if (gop)
	50	return 1;
	51
	52	return 0;
	53	}
	54
	55	static grub_err_t
	56	grub_video_gop_init (void)
	57	{
	58	grub_memset (&framebuffer, 0, sizeof(framebuffer));
	59	return grub_video_fb_init ();
	60	}
	61
	62	static grub_err_t
	63	grub_video_gop_fini (void)
	64	{
65	if (restore_needed)
66	{
67	efi_call_2 (gop->set_mode, gop, old_mode);
68	restore_needed = 0;
69	}
70	return grub_video_fb_fini ();
71	}
72
73	static int
74	grub_video_gop_get_bpp (struct grub_efi_gop_mode_info *in)
75	{
76	grub_uint32_t total_mask;
77	int i;
78	switch (in->pixel_format)
79	{
80	case GRUB_EFI_GOT_BGRA8:
81	case GRUB_EFI_GOT_RGBA8:
82	return 32;
83
84	case GRUB_EFI_GOT_BITMASK:
85	/* Check overlaps. */
86	if ((in->pixel_bitmask.r & in->pixel_bitmask.g)
87	\|\| (in->pixel_bitmask.r & in->pixel_bitmask.b)
88	\|\| (in->pixel_bitmask.g & in->pixel_bitmask.b)
89	\|\| (in->pixel_bitmask.r & in->pixel_bitmask.a)
90	\|\| (in->pixel_bitmask.g & in->pixel_bitmask.a)
91	\|\| (in->pixel_bitmask.b & in->pixel_bitmask.a))
92	return 0;
93
94	total_mask = in->pixel_bitmask.r \| in->pixel_bitmask.g
95	\| in->pixel_bitmask.b \| in->pixel_bitmask.a;
a2c1332b	96
1708050b VS	97	for (i = 31; i >= 0; i--)
	98	if (total_mask & (1 << i))
	99	return i + 1;
	100
	101	/* Fall through. */
	102	default:
	103	return 0;
	104	}
	105	}
	106
	107	static void
	108	grub_video_gop_get_bitmask (grub_uint32_t mask, unsigned int *mask_size,
	109	unsigned int *field_pos)
	110	{
	111	int i;
	112	int last_p;
	113	for (i = 31; i >= 0; i--)
	114	if (mask & (1 << i))
	115	break;
	116	if (i == -1)
	117	{
	118	mask_size = field_pos = 0;
	119	return;
	120	}
	121	last_p = i;
	122	for (; i >= 0; i--)
	123	if (!(mask & (1 << i)))
	124	break;
	125	*field_pos = i + 1;
009ec743	126	mask_size = last_p - field_pos + 1;
1708050b VS	127	}
	128
	129	static grub_err_t
	130	grub_video_gop_fill_mode_info (struct grub_efi_gop_mode_info *in,
	131	struct grub_video_mode_info *out)
	132	{
	133	out->number_of_colors = 256;
	134	out->width = in->width;
	135	out->height = in->height;
	136	out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
	137	out->bpp = grub_video_gop_get_bpp (in);
	138	out->bytes_per_pixel = out->bpp >> 3;
	139	if (!out->bpp)
7fd0baee	140	return grub_error (GRUB_ERR_IO, "unsupported video mode");
1708050b VS	141	out->pitch = in->pixels_per_scanline * out->bytes_per_pixel;
	142
	143	switch (in->pixel_format)
	144	{
	145	case GRUB_EFI_GOT_RGBA8:
	146	out->red_mask_size = 8;
	147	out->red_field_pos = 0;
	148	out->green_mask_size = 8;
	149	out->green_field_pos = 8;
	150	out->blue_mask_size = 8;
	151	out->blue_field_pos = 16;
	152	out->reserved_mask_size = 8;
	153	out->reserved_field_pos = 24;
	154	break;
	155
	156	case GRUB_EFI_GOT_BGRA8:
	157	out->red_mask_size = 8;
	158	out->red_field_pos = 16;
	159	out->green_mask_size = 8;
	160	out->green_field_pos = 8;
	161	out->blue_mask_size = 8;
	162	out->blue_field_pos = 0;
	163	out->reserved_mask_size = 8;
	164	out->reserved_field_pos = 24;
	165	break;
	166
	167	case GRUB_EFI_GOT_BITMASK:
	168	grub_video_gop_get_bitmask (in->pixel_bitmask.r, &out->red_mask_size,
	169	&out->red_field_pos);
	170	grub_video_gop_get_bitmask (in->pixel_bitmask.g, &out->green_mask_size,
	171	&out->green_field_pos);
	172	grub_video_gop_get_bitmask (in->pixel_bitmask.b, &out->blue_mask_size,
	173	&out->blue_field_pos);
	174	grub_video_gop_get_bitmask (in->pixel_bitmask.a, &out->reserved_mask_size,
	175	&out->reserved_field_pos);
	176	break;
	177
	178	default:
7fd0baee	179	return grub_error (GRUB_ERR_IO, "unsupported video mode");
1708050b VS	180	}
	181
	182	out->blit_format = grub_video_get_blit_format (out);
	183	return GRUB_ERR_NONE;
	184	}
	185
	186	static grub_err_t
	187	grub_video_gop_setup (unsigned int width, unsigned int height,
e6d8d32a	188	unsigned int mode_type, unsigned int mode_mask __attribute__ ((unused)))
1708050b VS	189	{
	190	unsigned int depth;
	191	struct grub_efi_gop_mode_info *info = NULL;
	192	unsigned best_mode = 0;
	193	grub_err_t err;
	194	unsigned bpp;
	195	int found = 0;
	196	unsigned long long best_volume = 0;
	197
	198	depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
	199	>> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
	200
	201	/* Keep current mode if possible. */
	202	if (gop->mode->info)
	203	{
	204	bpp = grub_video_gop_get_bpp (gop->mode->info);
	205	if (bpp && ((width == gop->mode->info->width
	206	&& height == gop->mode->info->height)
	207	\|\| (width == 0 && height == 0))
	208	&& (depth == bpp \|\| depth == 0))
	209	{
	210	grub_dprintf ("video", "GOP: keeping mode %d\n", gop->mode->mode);
	211	best_mode = gop->mode->mode;
	212	found = 1;
	213	}
	214	}
a2c1332b	215
1708050b VS	216	if (!found)
	217	{
	218	unsigned mode;
	219	grub_dprintf ("video", "GOP: %d modes detected\n", gop->mode->max_mode);
	220	for (mode = 0; mode < gop->mode->max_mode; mode++)
	221	{
	222	grub_efi_uintn_t size;
	223	grub_efi_status_t status;
a2c1332b	224
1708050b VS	225	status = efi_call_4 (gop->query_mode, gop, mode, &size, &info);
	226	if (status)
	227	{
	228	info = 0;
	229	break;
	230	}
	231
	232	grub_dprintf ("video", "GOP: mode %d: %dx%d\n", mode, info->width,
	233	info->height);
	234
	235	bpp = grub_video_gop_get_bpp (info);
	236	if (!bpp)
	237	{
	238	grub_dprintf ("video", "GOP: mode %d: incompatible pixel mode\n",
	239	mode);
	240	continue;
	241	}
	242
	243	grub_dprintf ("video", "GOP: mode %d: depth %d\n", mode, bpp);
	244
	245	if (!(((info->width == width && info->height == height)
	246	\|\| (width == 0 && height == 0))
	247	&& (bpp == depth \|\| depth == 0)))
	248	{
	249	grub_dprintf ("video", "GOP: mode %d: rejected\n", mode);
	250	continue;
	251	}
	252
	253	if (best_volume < ((unsigned long long) info->width)
	254	* ((unsigned long long) info->height)
	255	* ((unsigned long long) bpp))
	256	{
	257	best_volume = ((unsigned long long) info->width)
a2c1332b	258	* ((unsigned long long) info->height)
1708050b VS	259	* ((unsigned long long) bpp);
	260	best_mode = mode;
	261	}
	262	found = 1;
	263	}
	264	}
	265
	266	if (!found)
	267	{
	268	grub_dprintf ("video", "GOP: no mode found\n");
7fd0baee	269	return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "no matching mode found");
1708050b VS	270	}
	271
	272	if (best_mode != gop->mode->mode)
	273	{
	274	if (!restore_needed)
	275	{
	276	old_mode = gop->mode->mode;
	277	restore_needed = 1;
	278	}
	279	efi_call_2 (gop->set_mode, gop, best_mode);
	280	}
	281
	282	info = gop->mode->info;
	283
	284	err = grub_video_gop_fill_mode_info (info, &framebuffer.mode_info);
	285	if (err)
	286	{
	287	grub_dprintf ("video", "GOP: couldn't fill mode info\n");
	288	return err;
	289	}
	290
f704cae3	291	framebuffer.ptr = (void *) (grub_addr_t) gop->mode->fb_base;
1708050b VS	292
	293	grub_dprintf ("video", "GOP: initialising FB @ %p %dx%dx%d\n",
	294	framebuffer.ptr, framebuffer.mode_info.width,
	295	framebuffer.mode_info.height, framebuffer.mode_info.bpp);
a2c1332b FZ	296
a2c1332b FZ	297	err = grub_video_fb_create_render_target_from_pointer
1708050b VS	298	(&framebuffer.render_target, &framebuffer.mode_info, framebuffer.ptr);
	299
	300	if (err)
	301	{
	302	grub_dprintf ("video", "GOP: Couldn't create FB target\n");
	303	return err;
	304	}
a2c1332b	305
1708050b	306	err = grub_video_fb_set_active_render_target (framebuffer.render_target);
a2c1332b	307
1708050b VS	308	if (err)
	309	{
	310	grub_dprintf ("video", "GOP: Couldn't set FB target\n");
	311	return err;
	312	}
a2c1332b	313
1708050b VS	314	err = grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,
	315	grub_video_fbstd_colors);
	316
	317	if (err)
	318	grub_dprintf ("video", "GOP: Couldn't set palette\n");
	319	else
	320	grub_dprintf ("video", "GOP: Success\n");
a2c1332b	321
1708050b VS	322	return err;
	323	}
	324
	325	static grub_err_t
	326	grub_video_gop_swap_buffers (void)
	327	{
	328	/* TODO: Implement buffer swapping. */
	329	return GRUB_ERR_NONE;
	330	}
	331
	332	static grub_err_t
	333	grub_video_gop_set_active_render_target (struct grub_video_render_target *target)
	334	{
	335	if (target == GRUB_VIDEO_RENDER_TARGET_DISPLAY)
	336	target = framebuffer.render_target;
	337
	338	return grub_video_fb_set_active_render_target (target);
	339	}
	340
	341	static grub_err_t
	342	grub_video_gop_get_info_and_fini (struct grub_video_mode_info *mode_info,
	343	void **framebuf)
	344	{
	345	grub_memcpy (mode_info, &(framebuffer.mode_info), sizeof (*mode_info));
	346	framebuf = (char ) framebuffer.ptr;
	347
	348	grub_video_fb_fini ();
	349
	350	return GRUB_ERR_NONE;
	351	}
	352
	353	static struct grub_video_adapter grub_video_gop_adapter =
	354	{
	355	.name = "EFI GOP driver",
0d90e8a6	356	.id = GRUB_VIDEO_DRIVER_EFI_GOP,
1708050b	357
d49703d1 VS	358	.prio = GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE,
d49703d1 VS	359
1708050b VS	360	.init = grub_video_gop_init,
	361	.fini = grub_video_gop_fini,
	362	.setup = grub_video_gop_setup,
	363	.get_info = grub_video_fb_get_info,
	364	.get_info_and_fini = grub_video_gop_get_info_and_fini,
	365	.set_palette = grub_video_fb_set_palette,
	366	.get_palette = grub_video_fb_get_palette,
	367	.set_viewport = grub_video_fb_set_viewport,
	368	.get_viewport = grub_video_fb_get_viewport,
	369	.map_color = grub_video_fb_map_color,
	370	.map_rgb = grub_video_fb_map_rgb,
	371	.map_rgba = grub_video_fb_map_rgba,
	372	.unmap_color = grub_video_fb_unmap_color,
	373	.fill_rect = grub_video_fb_fill_rect,
	374	.blit_bitmap = grub_video_fb_blit_bitmap,
	375	.blit_render_target = grub_video_fb_blit_render_target,
	376	.scroll = grub_video_fb_scroll,
	377	.swap_buffers = grub_video_gop_swap_buffers,
	378	.create_render_target = grub_video_fb_create_render_target,
	379	.delete_render_target = grub_video_fb_delete_render_target,
	380	.set_active_render_target = grub_video_gop_set_active_render_target,
	381	.get_active_render_target = grub_video_fb_get_active_render_target,
	382
	383	.next = 0
	384	};
	385
2f857f98	386	GRUB_MOD_INIT(efi_gop)
1708050b VS	387	{
	388	if (check_protocol ())
	389	grub_video_register (&grub_video_gop_adapter);
	390	}
	391
2f857f98	392	GRUB_MOD_FINI(efi_gop)
1708050b VS	393	{
	394	if (restore_needed)
	395	{
	396	efi_call_2 (gop->set_mode, gop, old_mode);
	397	restore_needed = 0;
	398	}
	399	if (gop)
	400	grub_video_unregister (&grub_video_gop_adapter);
	401	}