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[bootloader] Boot other slot if a slot is invalid

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This commit is contained in:
M4x1m3
2022-02-28 09:13:29 +01:00
parent 1c04949336
commit 227ca616ca
4 changed files with 38 additions and 13 deletions
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30
bootloader/boot.cpp
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@@ -29,18 +29,34 @@ void Boot::setMode(BootMode mode) {
Ion::ExamMode::IncrementExamMode(deltaMode);
}
[[ noreturn ]] void Boot::boot() {
__attribute__((noreturn)) void Boot::boot() {
assert(mode() != BootMode::Unknown);
if (mode() == BootMode::SlotA)
Slot::A().boot();
else if (mode() == BootMode::SlotB)
if (!Slot::A().kernelHeader()->isValid() && !Slot::B().kernelHeader()->isValid()) {
// Bootloader if both invalid
bootloader();
} else if (!Slot::A().kernelHeader()->isValid()) {
// If slot A is invalid and B valid, boot B
setMode(BootMode::SlotB);
Slot::B().boot();
for(;;);
} else if (!Slot::B().kernelHeader()->isValid()) {
// If slot B is invalid and A valid, boot A
setMode(BootMode::SlotA);
Slot::A().boot();
} else {
// Both valid, boot the selected one
if (mode() == BootMode::SlotA) {
Slot::A().boot();
} else if (mode() == BootMode::SlotB) {
Slot::B().boot();
}
}
// Achivement unlocked: How Did We Get Here?
bootloader();
}
[[ noreturn ]] void Boot::bootloader() {
__attribute__ ((noreturn)) void Boot::bootloader() {
Bootloader::Interface::draw();
for(;;) {
Ion::USB::enable();