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Kernel: Replace IRQHandler with the new InterruptHandler class

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System components that need an IRQ handling are now inheriting the
InterruptHandler class.

In addition to that, the initialization process of PATAChannel was
changed to fit the changes.
PATAChannel, E1000NetworkAdapter and RTL8139NetworkAdapter are now
inheriting from PCI::Device instead of InterruptHandler directly.
This commit is contained in:
Liav A 2020-01-21 13:23:03 +02:00 • committed by Andreas Kling
parent 1ee37245cd
commit 6c72736b26
29 changed files with 193 additions and 169 deletions
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34
Kernel/Devices/PATAChannel.cpp
View file

@ -112,18 +112,25 @@ static Lock& s_lock()
return *lock;
};
OwnPtr<PATAChannel> PATAChannel::create(ChannelType type, bool force_pio)
OwnPtr<PATAChannel> PATAChannel::autodetect(ChannelType type, bool force_pio)
{
return make<PATAChannel>(type, force_pio);
PCI::Address found_address;
PCI::enumerate_all([&](const PCI::Address& address, PCI::ID id) {
if (PCI::get_class(address) == PCI_Mass_Storage_Class && PCI::get_subclass(address) == PCI_IDE_Controller_Subclass) {
found_address = address;
kprintf("PATAChannel: PATA Controller found! id=%w:%w\n", id.vendor_id, id.device_id);
}
});
return make<PATAChannel>(found_address, type, force_pio);
}
PATAChannel::PATAChannel(ChannelType type, bool force_pio)
: IRQHandler((type == ChannelType::Primary ? PATA_PRIMARY_IRQ : PATA_SECONDARY_IRQ))
PATAChannel::PATAChannel(PCI::Address pci_address, ChannelType type, bool force_pio)
: PCI::Device(pci_address, (type == ChannelType::Primary ? PATA_PRIMARY_IRQ : PATA_SECONDARY_IRQ))
, m_channel_number((type == ChannelType::Primary ? 0 : 1))
, m_io_base((type == ChannelType::Primary ? 0x1F0 : 0x170))
, m_control_base((type == ChannelType::Primary ? 0x3f6 : 0x376))
{
disable_irq();
disable_interrupts();
m_dma_enabled.resource() = true;
ProcFS::add_sys_bool("ide_dma", m_dma_enabled);
@ -140,14 +147,8 @@ PATAChannel::~PATAChannel()
void PATAChannel::initialize(bool force_pio)
{
PCI::enumerate_all([this](const PCI::Address& address, PCI::ID id) {
if (PCI::get_class(address) == PCI_Mass_Storage_Class && PCI::get_subclass(address) == PCI_IDE_Controller_Subclass) {
m_pci_address = address;
kprintf("PATAChannel: PATA Controller found! id=%w:%w\n", id.vendor_id, id.device_id);
}
});
if (m_pci_address.is_null()) {
if (get_pci_address().is_null()) {
kprintf("PATAChannel: PCI address was null; can not set up DMA\n");
return;
}
@ -158,9 +159,9 @@ void PATAChannel::initialize(bool force_pio)
}
// Let's try to set up DMA transfers.
PCI::enable_bus_mastering(m_pci_address);
PCI::enable_bus_mastering(get_pci_address());
prdt().end_of_table = 0x8000;
m_bus_master_base = PCI::get_BAR4(m_pci_address) & 0xfffc;
m_bus_master_base = PCI::get_BAR4(get_pci_address()) & 0xfffc;
m_dma_buffer_page = MM.allocate_supervisor_physical_page();
kprintf("PATAChannel: Bus master IDE: I/O @ %x\n", m_bus_master_base);
}
@ -181,12 +182,11 @@ static void print_ide_status(u8 status)
void PATAChannel::wait_for_irq()
{
cli();
enable_irq();
InterruptHandler::Enabler enabler(*this);
current->wait_on(m_irq_queue);
disable_irq();
}
void PATAChannel::handle_irq()
void PATAChannel::handle_interrupt()
{
u8 status = IO::in8(m_io_base + ATA_REG_STATUS);
if (status & ATA_SR_ERR) {