mirror of
https://github.com/UpsilonNumworks/Upsilon.git
synced 2026-01-19 00:37:25 +01:00
53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
#include <bootloader/boot.h>
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#include <bootloader/slot.h>
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#include <ion.h>
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#include <bootloader/interface.h>
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#include <assert.h>
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namespace Bootloader {
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BootMode Boot::mode() {
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// We use the exam mode driver as storage for the boot mode
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uint8_t mode = Ion::ExamMode::FetchExamMode();
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if (mode > 3)
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return Unknown;
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return (BootMode) mode;
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}
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void Boot::setMode(BootMode mode) {
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BootMode currentMode = Boot::mode();
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if (currentMode == mode)
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return;
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assert(mode != BootMode::Unknown);
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int8_t deltaMode = (int8_t)mode - (int8_t)currentMode;
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deltaMode = deltaMode < 0 ? deltaMode + 4 : deltaMode;
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assert(deltaMode > 0);
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Ion::ExamMode::IncrementExamMode(deltaMode);
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}
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[[ noreturn ]] void Boot::boot() {
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assert(mode() != BootMode::Unknown);
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if (mode() == BootMode::SlotA)
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Slot::A().boot();
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else if (mode() == BootMode::SlotB)
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Slot::B().boot();
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for(;;);
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}
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[[ noreturn ]] void Boot::bootloader() {
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Bootloader::Interface::draw();
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for(;;) {
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Ion::USB::enable();
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while (!Ion::USB::isEnumerated());
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Ion::USB::DFU(false);
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}
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}
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}
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