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os: add IoRegion

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This commit is contained in:
Michael Scire 2021-09-30 11:43:17 -07:00
parent 2d214f5e1e
commit d9b4009f82
1 changed files with 58 additions and 1 deletions
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59
libraries/libstratosphere/include/stratosphere/os/os_io_region.hpp
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@ -21,6 +21,63 @@
namespace ams::os {
/* TODO: class IoRegion ? */
class IoRegion {
NON_COPYABLE(IoRegion);
NON_MOVEABLE(IoRegion);
private:
IoRegionType m_io_region;
public:
constexpr IoRegion() : m_io_region{ .state = IoRegionType::State_NotInitialized } {
/* ... */
}
IoRegion(Handle io_pool_handle, uintptr_t address, size_t size, MemoryMapping mapping, MemoryPermission permission) {
R_ABORT_UNLESS(CreateIoRegion(std::addressof(m_io_region), io_pool_handle, address, size, mapping, permission));
}
IoRegion(size_t size, Handle handle, bool managed) {
this->Attach(size, handle, managed);
}
~IoRegion() {
if (m_io_region.state == IoRegionType::State_NotInitialized) {
return;
}
if (m_io_region.state == IoRegionType::State_Mapped) {
this->Unmap();
}
DestroyIoRegion(std::addressof(m_io_region));
}
void Attach(size_t size, Handle handle, bool managed) {
AttachIoRegion(std::addressof(m_io_region), size, handle, managed);
}
Handle GetHandle() const {
return GetIoRegionHandle(std::addressof(m_io_region));
}
Result Map(void **out, MemoryPermission perm) {
return MapIoRegion(out, std::addressof(m_io_region), perm);
}
void Unmap() {
UnmapIoRegion(std::addressof(m_io_region));
}
operator IoRegionType &() {
return m_io_region;
}
operator const IoRegionType &() const {
return m_io_region;
}
IoRegionType *GetBase() {
return std::addressof(m_io_region);
}
};
}