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#include <kapi/devices/bus.hpp>
#include <kapi/devices.hpp>
#include <kapi/devices/bus_protocol.hpp>
#include <kapi/devices/driver_registry.hpp>
#include <kapi/system.hpp>
#include <kstd/memory.hpp>
#include <kstd/string.hpp>
#include <kstd/vector.hpp>
#include <span>
#include <utility>
namespace kapi::devices
{
bus::bus(kstd::string const & name)
: device{name}
{}
bus::bus(kstd::string const & name, bus_protocol & protocol)
: device{name}
, m_protocol{&protocol}
{}
auto bus::add_child(kstd::shared_ptr<device> child) -> void
{
child->set_parent(kstd::static_pointer_cast<bus>(shared_from_this()));
if (!kapi::devices::device_registry::get().add(child))
{
kapi::system::panic("[OS:DEV] Failed to register child device {}", child->name());
}
auto & attached = m_devices.emplace_back(std::move(child));
attached->set_state(state::present);
driver_registry::get().device_attached(attached);
}
[[nodiscard]] auto bus::children() const -> std::span<kstd::shared_ptr<device> const>
{
return {m_devices.data(), m_devices.size()};
}
auto bus::query_facet(kapi::capabilities::facet_id facet) -> void *
{
if (facet == bus::id)
{
return this;
}
else if (facet == bus_protocol::id)
{
return m_protocol;
}
return device::query_facet(facet);
}
} // namespace kapi::devices
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