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USB: Further Implement USB Structures

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These are the actual structures that allow USB to work (i.e the ones
actually defined in the specification). This should provide us enough
of a baseline implementation that we can build on to support
different types of USB device.
This commit is contained in:
Jesse Buhagiar 2021-02-27 15:10:37 +11:00 • committed by Ali Mohammad Pur
parent e044a3e428
commit 06f1edb516
16 changed files with 1037 additions and 89 deletions
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10
Kernel/Devices/USB/UHCIController.h
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@ -11,6 +11,8 @@
#include <AK/NonnullOwnPtr.h>
#include <Kernel/Devices/USB/UHCIDescriptorTypes.h>
#include <Kernel/Devices/USB/USBDevice.h>
#include <Kernel/Devices/USB/USBTransfer.h>
#include <Kernel/IO.h>
#include <Kernel/PCI/Device.h>
#include <Kernel/Process.h>
@ -33,6 +35,8 @@ public:
void do_debug_transfer();
KResultOr<size_t> submit_control_transfer(Transfer& transfer);
private:
UHCIController(PCI::Address, PCI::ID);
@ -58,6 +62,11 @@ private:
void create_structures();
void setup_schedule();
size_t poll_transfer_queue(QueueHead& transfer_queue);
TransferDescriptor* create_transfer_descriptor(Pipe& pipe, PacketID direction, size_t data_len);
KResult create_chain(Pipe& pipe, PacketID direction, Ptr32<u8>& buffer_address, size_t max_size, size_t transfer_size, TransferDescriptor** td_chain, TransferDescriptor** last_td);
void free_descriptor_chain(TransferDescriptor* first_descriptor);
QueueHead* allocate_queue_head() const;
TransferDescriptor* allocate_transfer_descriptor() const;
@ -78,7 +87,6 @@ private:
OwnPtr<Region> m_framelist;
OwnPtr<Region> m_qh_pool;
OwnPtr<Region> m_td_pool;
OwnPtr<Region> m_td_buffer_region;
};
}