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#define JTAG_SC__H
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#define JTAG_SC__H
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#include "systemc"
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#include "systemc"
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#include "TapAction.h"
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#include "TapAction.h"
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//! Default size of the FIFO queuing TAP actions
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//! Default size of the FIFO queuing TAP actions
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#define DEFAULT_TAP_FIFO_SIZE 256
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#define DEFAULT_TAP_FIFO_SIZE 256
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//! The main JTAG interface module
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//! The main JTAG interface module
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//! from the FIFO and processes them, issuing the requisite sequence of
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//! from the FIFO and processes them, issuing the requisite sequence of
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//! changes of the JTAG pins until the action is complete. It then notifies
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//! changes of the JTAG pins until the action is complete. It then notifies
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//! the action owner of completion, through an sc_event, which is part of the
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//! the action owner of completion, through an sc_event, which is part of the
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//! ::TapAction class.
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//! ::TapAction class.
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//!
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//!
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class JtagSC
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class JtagSC:public sc_core::sc_module {
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: public sc_core::sc_module
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{
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public:
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public:
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// The ports. Note that the naming of the low level JTAG ports is reversed,
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// The ports. Note that the naming of the low level JTAG ports is reversed,
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// because we are driving the inputs! */
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// because we are driving the inputs! */
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sc_core::sc_in<bool> sysReset; //!< The system reset (active high)
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sc_core::sc_in<bool> sysReset; //!< The system reset (active high)
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sc_core::sc_in<bool> tdo; //!< JTAG TDO pin
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sc_core::sc_in<bool> tdo; //!< JTAG TDO pin
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sc_core::sc_out<bool> tms; //!< JTAG TMS pin
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sc_core::sc_out<bool> tms; //!< JTAG TMS pin
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sc_core::sc_out<bool> trst; //!< JTAG TRST pin
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sc_core::sc_out<bool> trst; //!< JTAG TRST pin
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//! JTAG action queue
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//! JTAG action queue
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sc_core::sc_fifo<TapAction *> *tapActionQueue;
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sc_core::sc_fifo < TapAction * >*tapActionQueue;
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// Constructor and destructor
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// Constructor and destructor
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JtagSC (sc_core::sc_module_name name,
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JtagSC (sc_core::sc_module_name name,
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int fifo_size = DEFAULT_TAP_FIFO_SIZE);
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int fifo_size = DEFAULT_TAP_FIFO_SIZE);
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~JtagSC ();
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~JtagSC ();
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protected:
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protected:
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// Method to process the actions
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// Method to process the actions
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void processActions();
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void processActions();
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private:
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private:
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//! The TAP state machine
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//! The TAP state machine
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TapStateMachine *stateMachine;
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TapStateMachine *stateMachine;
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