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Kernel: Rework interrupt mechanism

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All interruptrable classes now inherit from Interruptable which
has methdo handle_irq which is called on a interrupt.
This commit is contained in:
Bananymous
2023-10-05 18:53:45 +03:00
parent 68a913c838
commit 27eb5af6f0
23 changed files with 716 additions and 706 deletions
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48
kernel/kernel/Storage/ATABus.cpp
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@@ -11,40 +11,6 @@
namespace Kernel
{
static void bus_irq_handler0();
static void bus_irq_handler1();
struct BusIRQ
{
ATABus* bus { nullptr };
void (*handler)() { nullptr };
uint8_t irq { 0 };
};
static BusIRQ s_bus_irqs[] {
{ nullptr, bus_irq_handler0, 0 },
{ nullptr, bus_irq_handler1, 0 },
};
static void bus_irq_handler0() { ASSERT(s_bus_irqs[0].bus); s_bus_irqs[0].bus->on_irq(); }
static void bus_irq_handler1() { ASSERT(s_bus_irqs[1].bus); s_bus_irqs[1].bus->on_irq(); }
static void register_bus_irq_handler(ATABus* bus, uint8_t irq)
{
for (uint8_t i = 0; i < sizeof(s_bus_irqs) / sizeof(BusIRQ); i++)
{
if (s_bus_irqs[i].bus == nullptr)
{
s_bus_irqs[i].bus = bus;
s_bus_irqs[i].irq = irq;
IDT::register_irq_handler(irq, s_bus_irqs[i].handler);
InterruptController::get().enable_irq(irq);
return;
}
}
ASSERT_NOT_REACHED();
}
ATABus* ATABus::create(ATAController& controller, uint16_t base, uint16_t ctrl, uint8_t irq)
{
ATABus* bus = new ATABus(controller, base, ctrl);
@@ -55,11 +21,11 @@ namespace Kernel
void ATABus::initialize(uint8_t irq)
{
register_bus_irq_handler(this, irq);
set_irq(irq);
enable_interrupt();
uint16_t* identify_buffer = new uint16_t[256];
ASSERT(identify_buffer);
BAN::ScopeGuard _([identify_buffer] { delete[] identify_buffer; });
BAN::Vector<uint16_t> identify_buffer;
MUST(identify_buffer.resize(256));
for (uint8_t i = 0; i < 2; i++)
{
@@ -72,11 +38,11 @@ namespace Kernel
BAN::ScopeGuard guard([this, i] { m_devices[i] = nullptr; });
auto type = identify(device, identify_buffer);
auto type = identify(device, identify_buffer.data());
if (type == DeviceType::None)
continue;
auto res = device.initialize(type, identify_buffer);
auto res = device.initialize(type, identify_buffer.data());
if (res.is_error())
{
dprintln("{}", res.error());
@@ -149,7 +115,7 @@ namespace Kernel
return type;
}
void ATABus::on_irq()
void ATABus::handle_irq()
{
ASSERT(!m_has_got_irq);
if (io_read(ATA_PORT_STATUS) & ATA_STATUS_ERR)