x2apic, poweroff, nvme driver, mp, powerbutton

1 files changed, 51 insertions, 0 deletions

diff --git a/kernel/src/generic/poweroff.cpp b/kernel/src/generic/poweroff.cpp
new file mode 100644
index 0000000..d81b3df
--- /dev/null
+++ b/kernel/src/generic/poweroff.cpp
@@ -0,0 +1,51 @@
+#include <cstdint>
+#include <generic/poweroff.hpp>
+#include <drivers/nvme.hpp>
+#if defined(__x86_64__)
+#include <uacpi/sleep.h>
+#include <arch/x86_64/cpu/lapic.hpp>
+#include <arch/x86_64/schedule_timer.hpp>
+#endif
+#include <generic/arch.hpp>
+#include <klibc/stdio.hpp>
+#include <generic/time.hpp>
+#include <generic/lock/spinlock.hpp>
+
+void poweroff::prepare_for_shutdown() {
+    drivers::nvme::disable();
+    klibc::printf("Poweroff: NVME is disabled\r\n");
+#if defined(__x86_64__)
+    x86_64::schedule_timer::off();
+#endif
+    locks::is_disabled = true;
+    klibc::printf("Poweroff: Preparing for shutdown is successful\r\n");
+}
+
+void poweroff::off() {
+    arch::disable_interrupts();
+    prepare_for_shutdown();
+    if(time::timer) {
+        klibc::printf("Poweroff: Shutdowning after 3 seconds\r\n");
+        time::timer->sleep(3 * (1000 * 1000));
+    }
+#if defined(__x86_64__) 
+    uacpi_prepare_for_sleep_state(UACPI_SLEEP_STATE_S5);
+    uacpi_enter_sleep_state(UACPI_SLEEP_STATE_S5);
+#endif
+    klibc::printf("uhh its safe to shutdown yk\r\n");
+    arch::hcf();
+}
+
+void poweroff::reboot() {
+    arch::disable_interrupts();
+    prepare_for_shutdown();
+    if(time::timer) {
+        klibc::printf("Poweroff: Rebooting after 3 seconds\r\n");
+        time::timer->sleep(3 * (1000 * 1000));
+    }
+#if defined(__x86_64__) 
+    uacpi_reboot();
+#endif
+    klibc::printf("uhh its safe to reboot yk\r\n");
+    arch::hcf();
+}
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