grub_err_t
grub_set_datetime (struct grub_datetime *datetime)
{
grub_efi_status_t status;
struct grub_efi_time efi_time;
status = efi_call_2 (grub_efi_system_table->runtime_services->get_time,
&efi_time, 0);
if (status)
return grub_error (GRUB_ERR_INVALID_COMMAND,
"can\'t get datetime using efi");
efi_time.year = datetime->year;
efi_time.month = datetime->month;
efi_time.day = datetime->day;
efi_time.hour = datetime->hour;
efi_time.minute = datetime->minute;
efi_time.second = datetime->second;
status = efi_call_1 (grub_efi_system_table->runtime_services->set_time,
&efi_time);
if (status)
return grub_error (GRUB_ERR_INVALID_COMMAND,
"can\'t set datetime using efi");
return 0;
}
/* Free pages starting from ADDRESS. */
void
grub_efi_free_pages (grub_efi_physical_address_t address,
grub_efi_uintn_t pages)
{
grub_efi_boot_services_t *b;
b = grub_efi_system_table->boot_services;
efi_call_2 (b->free_pages, address, pages);
}
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 ();
}
int
grub_efi_exit_boot_services (grub_efi_uintn_t map_key)
{
grub_efi_boot_services_t *b;
grub_efi_status_t status;
b = grub_efi_system_table->boot_services;
status = efi_call_2 (b->exit_boot_services, grub_efi_image_handle, map_key);
return status == GRUB_EFI_SUCCESS;
}
static grub_efi_boolean_t grub_tpm2_present(grub_efi_tpm2_protocol_t *tpm)
{
grub_efi_status_t status;
EFI_TCG2_BOOT_SERVICE_CAPABILITY caps;
caps.Size = (grub_uint8_t)sizeof(caps);
status = efi_call_2(tpm->get_capability, tpm, &caps);
if (status != GRUB_EFI_SUCCESS || !caps.TPMPresentFlag)
return 0;
return 1;
}
grub_uint32_t
grub_get_rtc (void)
{
grub_efi_time_t time;
grub_efi_runtime_services_t *r;
r = grub_efi_system_table->runtime_services;
if (efi_call_2 (r->get_time, &time, 0) != GRUB_EFI_SUCCESS)
/* What is possible in this case? */
return 0;
return (((time.minute * 60 + time.second) * 1000
+ time.nanosecond / 1000000)
* GRUB_TICKS_PER_SECOND / 1000);
}
int
grub_efi_set_text_mode (int on)
{
grub_efi_console_control_protocol_t *c;
grub_efi_screen_mode_t mode, new_mode;
c = grub_efi_locate_protocol (&console_control_guid, 0);
if (! c)
/* No console control protocol instance available, assume it is
already in text mode. */
return 1;
if (efi_call_4 (c->get_mode, c, &mode, 0, 0) != GRUB_EFI_SUCCESS)
return 0;
new_mode = on ? GRUB_EFI_SCREEN_TEXT : GRUB_EFI_SCREEN_GRAPHICS;
if (mode != new_mode)
if (efi_call_2 (c->set_mode, c, new_mode) != GRUB_EFI_SUCCESS)
return 0;
return 1;
}
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;
continue;
}
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 (gop->mode->mode, 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;
}