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Kernel/Storage: Add support for IDE controllers in PCI native mode

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Also handle native and compatibility channel modes together, so if only
one IDE channel was set to work on PCI native mode, we need to handle it
separately, so the other channel continue to operate with the legacy IO
ports and interrupt line.
This commit is contained in:
Liav A 2021-03-27 21:44:25 +03:00 • committed by Andreas Kling
parent 627cfe017c
commit 2718d7c74c
6 changed files with 96 additions and 25 deletions
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32
Kernel/Storage/IDEChannel.cpp
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@ -49,6 +49,11 @@ UNMAP_AFTER_INIT NonnullRefPtr<IDEChannel> IDEChannel::create(const IDEControlle
return adopt(*new IDEChannel(controller, io_group, type));
}
UNMAP_AFTER_INIT NonnullRefPtr<IDEChannel> IDEChannel::create(const IDEController& controller, u8 irq, IOAddressGroup io_group, ChannelType type)
{
return adopt(*new IDEChannel(controller, irq, io_group, type));
}
RefPtr<StorageDevice> IDEChannel::master_device() const
{
return m_master;
@ -59,16 +64,9 @@ RefPtr<StorageDevice> IDEChannel::slave_device() const
return m_slave;
}
UNMAP_AFTER_INIT IDEChannel::IDEChannel(const IDEController& controller, IOAddressGroup io_group, ChannelType type)
: IRQHandler(type == ChannelType::Primary ? PATA_PRIMARY_IRQ : PATA_SECONDARY_IRQ)
, m_channel_type(type)
, m_io_group(io_group)
, m_parent_controller(controller)
UNMAP_AFTER_INIT void IDEChannel::initialize()
{
disable_irq();
// FIXME: The device may not be capable of DMA.
dbgln_if(PATA_DEBUG, "IDEChannel: {} IO base: {}", channel_type_string(), m_io_group.io_base());
dbgln_if(PATA_DEBUG, "IDEChannel: {} control base: {}", channel_type_string(), m_io_group.control_base());
if (m_io_group.bus_master_base().has_value())
@ -83,6 +81,24 @@ UNMAP_AFTER_INIT IDEChannel::IDEChannel(const IDEController& controller, IOAddre
clear_pending_interrupts();
}
UNMAP_AFTER_INIT IDEChannel::IDEChannel(const IDEController& controller, u8 irq, IOAddressGroup io_group, ChannelType type)
: IRQHandler(irq)
, m_channel_type(type)
, m_io_group(io_group)
, m_parent_controller(controller)
{
initialize();
}
UNMAP_AFTER_INIT IDEChannel::IDEChannel(const IDEController& controller, IOAddressGroup io_group, ChannelType type)
: IRQHandler(type == ChannelType::Primary ? PATA_PRIMARY_IRQ : PATA_SECONDARY_IRQ)
, m_channel_type(type)
, m_io_group(io_group)
, m_parent_controller(controller)
{
initialize();
}
void IDEChannel::clear_pending_interrupts() const
{
m_io_group.io_base().offset(ATA_REG_STATUS).in<u8>();