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Kernel: Use macros instead of hard-coded magic values

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Gunnar Beutner 2021-04-26 18:34:49 +02:00 • committed by Andreas Kling
parent addddb4880
commit fa434305a7
1 changed files with 8 additions and 6 deletions
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14
Kernel/Net/E1000NetworkAdapter.cpp
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@ -117,6 +117,8 @@ namespace Kernel {
#define INTERRUPT_TXD_LOW (1 << 15)
#define INTERRUPT_SRPD (1 << 16)
#define PCI_VENDOR_INTEL 0x8086
// https://www.intel.com/content/dam/doc/manual/pci-pci-x-family-gbe-controllers-software-dev-manual.pdf Section 5.2
static bool is_valid_device_id(u16 device_id)
{
@ -160,7 +162,7 @@ UNMAP_AFTER_INIT void E1000NetworkAdapter::detect()
PCI::enumerate([&](const PCI::Address& address, PCI::ID id) {
if (address.is_null())
return;
if (id.vendor_id != 0x8086)
if (id.vendor_id != PCI_VENDOR_INTEL)
return;
if (!is_valid_device_id(id.device_id))
return;
@ -223,16 +225,16 @@ void E1000NetworkAdapter::handle_irq(const RegisterState&)
m_entropy_source.add_random_event(status);
if (status & 4) {
if (status & INTERRUPT_LSC) {
u32 flags = in32(REG_CTRL);
out32(REG_CTRL, flags | ECTRL_SLU);
}
if (status & 0x80) {
receive();
}
if (status & 0x10) {
if (status & INTERRUPT_RXDMT0) {
// Threshold OK?
}
if (status & INTERRUPT_RXT0) {
receive();
}
m_wait_queue.wake_all();