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Bootloader: Implement VESA video mode query and pass it to kernel

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Kernel now gets framebuffer from bootloader. Framebuffer dimensions
and bpp are hardcoded in bootloader, but will probably be read from
config file at some point.
This commit is contained in:
Bananymous
2023-11-17 22:45:35 +02:00
parent ac96ea3370
commit c9e9cfd361
6 changed files with 187 additions and 8 deletions
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11
kernel/kernel/BootInfo.cpp
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@@ -71,6 +71,17 @@ namespace Kernel
const char* command_line = reinterpret_cast<const char*>(banan_bootloader_info.command_line_addr);
MUST(g_boot_info.command_line.append(command_line));
const auto& framebuffer = *reinterpret_cast<BananBootFramebufferInfo*>(banan_bootloader_info.framebuffer_addr);
if (framebuffer.type == BANAN_BOOTLOADER_FB_RGB)
{
g_boot_info.framebuffer.address = framebuffer.address;
g_boot_info.framebuffer.width = framebuffer.width;
g_boot_info.framebuffer.height = framebuffer.height;
g_boot_info.framebuffer.pitch = framebuffer.pitch;
g_boot_info.framebuffer.bpp = framebuffer.bpp;
g_boot_info.framebuffer.type = FramebufferType::RGB;
}
const auto& memory_map = *reinterpret_cast<BananBootloaderMemoryMapInfo*>(banan_bootloader_info.memory_map_addr);
MUST(g_boot_info.memory_map_entries.resize(memory_map.entry_count));
for (size_t i = 0; i < memory_map.entry_count; i++)