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Line 26... |
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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// $Id$
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// $Id$
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#ifndef TAP_ACTION__H
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#ifndef TAP_ACTION__H
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#define TAP_ACTION__H
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#define TAP_ACTION__H
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#include "TapStateMachine.h"
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#include "TapStateMachine.h"
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namespace sc_core
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namespace sc_core {
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{
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class sc_event;
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class sc_event;
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}
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}
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//! Enumeration of all the TAP actions supported.
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//! Enumeration of all the TAP actions supported.
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enum TapActionType {
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enum TapActionType {
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TAP_ACTION_RESET = 0,
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TAP_ACTION_RESET = 0,
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TAP_ACTION_SHIFT_DR = 1,
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TAP_ACTION_SHIFT_DR = 1,
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TAP_ACTION_SHIFT_IR = 2
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TAP_ACTION_SHIFT_IR = 2
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};
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};
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//! Abstract class to represent a TAP action.
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//! Abstract class to represent a TAP action.
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//! Subclasses implement specific actions: Reset (TapActionReset::), DR-Scan
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//! Subclasses implement specific actions: Reset (TapActionReset::), DR-Scan
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//! (TapActionDRScan::) and IR-Scan (TapActionIRScan::).
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//! (TapActionDRScan::) and IR-Scan (TapActionIRScan::).
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//! We keep a SystemC event, which is used to notify the creator of
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//! We keep a SystemC event, which is used to notify the creator of
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//! completion. Since we are not a SystemC class, we don't do the notification
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//! completion. Since we are not a SystemC class, we don't do the notification
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//! ourselves.
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//! ourselves.
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class TapAction
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class TapAction {
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{
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public:
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public:
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friend class JtagSC;
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friend class JtagSC;
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// Constructor
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// Constructor
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TapAction (sc_core::sc_event *_doneEvent);
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TapAction (sc_core::sc_event *_doneEvent);
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protected:
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protected:
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// Accessor for the SystemC event to notify completion
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// Accessor for the SystemC event to notify completion
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sc_core::sc_event *getDoneEvent ();
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sc_core::sc_event *getDoneEvent ();
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// Process the action. Pure virtual, so must be implemented by subclasses.
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// Process the action. Pure virtual, so must be implemented by subclasses.
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virtual bool process (TapStateMachine *tapStateMachine,
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virtual bool process (TapStateMachine *tapStateMachine,
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bool &tdi,
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bool & tdi, bool tdo, bool & tms) = 0;
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bool tdo,
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bool &tms) = 0;
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// Function to drive the TAP to a consistent state, optionally with a
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// Function to drive the TAP to a consistent state, optionally with a
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// warning.
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// warning.
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bool checkResetDone (TapStateMachine *tapStateMachine,
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bool checkResetDone (TapStateMachine *tapStateMachine,
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bool &tms,
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bool & tms, bool warn = false);
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bool warn = false);
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private:
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private:
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//! The associated SystemC event to mark completion
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//! The associated SystemC event to mark completion
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sc_core::sc_event *doneEvent;
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sc_core::sc_event *doneEvent;
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