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#ifndef DMASEQUENCER_H
#define DMASEQUENCER_H
#include <ostream>
#include "mem/ruby/common/DataBlock.hh"
#include "mem/ruby/system/RubyPort.hh"
struct DMARequest {
uint64_t start_paddr;
int len;
bool write;
int bytes_completed;
int bytes_issued;
uint8* data;
int64_t id;
};
class MessageBuffer;
class AbstractController;
class DMASequencer :public RubyPort {
public:
DMASequencer(const string & name);
void init(const vector<string> & argv);
/* external interface */
int64_t makeRequest(const RubyRequest & request);
// void issueRequest(uint64_t paddr, uint8* data, int len, bool rw);
bool busy() { return m_is_busy;}
/* SLICC callback */
void dataCallback(const DataBlock & dblk);
void ackCallback();
void printConfig(std::ostream & out);
private:
void issueNext();
private:
int m_version;
AbstractController* m_controller;
bool m_is_busy;
uint64_t m_data_block_mask;
DMARequest active_request;
int num_active_requests;
MessageBuffer* m_mandatory_q_ptr;
};
#endif // DMACONTROLLER_H
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