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Further parse AHCI information.

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Send an IDENTIFY command to each drive and set up a hook to handle
interrupts.
This commit is contained in:
Drew Galbraith 2023-06-12 19:20:51 -07:00
parent 4e1888bd24
commit 0f0e39d1e9
25 changed files with 721 additions and 90 deletions
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37
zion/interrupt/interrupt.cpp
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@ -138,11 +138,44 @@ extern "C" void interrupt_timer(InterruptFrame*) {
gScheduler->Preempt();
}
RefPtr<Port> pci1_port;
extern "C" void isr_pci1();
extern "C" void interrupt_pci1(InterruptFrame*) {
dbgln("Interrupt PCI line 1");
pci1_port->Write({});
SignalEOI();
}
extern "C" void isr_pci2();
extern "C" void interrupt_pci2(InterruptFrame*) {
dbgln("Interrupt PCI line 2");
SignalEOI();
}
extern "C" void isr_pci3();
extern "C" void interrupt_pci3(InterruptFrame*) {
dbgln("Interrupt PCI line 3");
SignalEOI();
}
extern "C" void isr_pci4();
extern "C" void interrupt_pci4(InterruptFrame*) {
dbgln("Interrupt PCI line 4");
SignalEOI();
}
void InitIdt() {
gIdt[0] = CreateDescriptor(isr_divide_by_zero);
gIdt[13] = CreateDescriptor(isr_protection_fault);
gIdt[14] = CreateDescriptor(isr_page_fault);
gIdt[32] = CreateDescriptor(isr_timer);
gIdt[0x20] = CreateDescriptor(isr_timer);
gIdt[0x30] = CreateDescriptor(isr_pci1);
gIdt[0x31] = CreateDescriptor(isr_pci2);
gIdt[0x32] = CreateDescriptor(isr_pci3);
gIdt[0x33] = CreateDescriptor(isr_pci4);
InterruptDescriptorTablePointer idtp{
.size = sizeof(gIdt),
.base = reinterpret_cast<uint64_t>(gIdt),
@ -151,3 +184,5 @@ void InitIdt() {
EnableApic();
}
void RegisterPciPort(const RefPtr<Port>& port) { pci1_port = port; }