34 lines
988 B
C++
34 lines
988 B
C++
#include "denali_server.h"
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#include <glacier/memory/move.h>
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#include <glacier/status/error.h>
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#include <mammoth/debug.h>
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#include <zcall.h>
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glcr::ErrorOr<glcr::UniquePtr<DenaliServer>> DenaliServer::Create(
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AhciDriver& driver) {
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z_cap_t cap;
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RET_ERR(ZEndpointCreate(&cap));
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return glcr::UniquePtr<DenaliServer>(new DenaliServer(cap, driver));
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}
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glcr::ErrorCode DenaliServer::HandleRead(const ReadRequest& req,
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ReadResponse& resp) {
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ASSIGN_OR_RETURN(AhciDevice * device, driver_.GetDevice(req.device_id()));
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ASSIGN_OR_RETURN(Mutex mutex, Mutex::Create());
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RET_ERR(mutex.Lock());
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DmaReadCommand command(req.lba(), req.size(), mutex);
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device->IssueCommand(&command);
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// Wait for read operation to complete.
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RET_ERR(mutex.Lock());
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RET_ERR(mutex.Release());
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resp.set_device_id(req.device_id());
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resp.set_lba(req.lba());
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resp.set_size(req.size());
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resp.set_memory(command.GetMemoryRegion());
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return glcr::OK;
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}
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