justin/jsix_import
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[fb] Output klog to fb if video exists

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If there's no video, do as we did before, otherwise route logs to the fb
driver instead. (Need to clean this up to just have a log consumer
general interface?) Also added a "scrollback" class to fb driver and
updated the system_get_log syscall.
This commit is contained in:
Justin C. Miller
2021-01-03 18:13:41 -08:00
parent dccb136c99
commit e477dea5c7
12 changed files with 181 additions and 29 deletions
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11
src/boot/console.cpp
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@@ -83,9 +83,14 @@ console::pick_mode(uefi::boot_services *bs)
uefi::protos::graphics_output *gfx_out_proto;
uefi::guid guid = uefi::protos::graphics_output::guid;
try_or_raise(
bs->locate_protocol(&guid, nullptr, (void **)&gfx_out_proto),
L"Failed to find a Graphics Output Protocol handle");
m_fb.type = kernel::args::fb_type::none;
uefi::status has_gop = bs->locate_protocol(&guid, nullptr,
(void **)&gfx_out_proto);
if (has_gop != uefi::status::success)
// No video output found, skip it
return;
const uint32_t modes = gfx_out_proto->mode->max_mode;
uint32_t best = gfx_out_proto->mode->mode;