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Kernel/USB: Add UKBuffer variants of certain BulkPipe/Transfer functions
These will be useful for directly accessing the source/destination buffers, without going through a third buffer first.
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4 changed files with 43 additions and 0 deletions
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@ -6,6 +6,7 @@
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#include <Kernel/Bus/USB/USBTransfer.h>
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#include <Kernel/Library/StdLib.h>
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#include <Kernel/Library/UserOrKernelBuffer.h>
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#include <Kernel/Memory/MemoryManager.h>
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namespace Kernel::USB {
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@ -51,6 +52,13 @@ ErrorOr<void> Transfer::write_buffer(u16 len, void* data)
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return {};
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}
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ErrorOr<void> Transfer::write_buffer(u16 len, UserOrKernelBuffer data)
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{
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VERIFY(len <= m_dma_buffer.size());
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m_transfer_data_size = len;
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return data.read(buffer().as_ptr(), len);
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}
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void Transfer::invoke_async_callback()
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{
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if (m_callback)
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