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#include "systemc"
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#include "systemc"
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#include "JtagSC_includes.h"
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#include "JtagSC_includes.h"
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//! Module providing TAP requests to JTAG
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//! Module providing TAP requests to JTAG
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//! Provides a queue of requests to the JTAG interface. Requests are at the
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//! Provides a queue of requests to the JTAG interface. Requests are at the
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//! level of TAP actions for reset, DR-Scan or IR-Scan.
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//! level of TAP actions for reset, DR-Scan or IR-Scan.
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class JtagDriverSC
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class JtagDriverSC: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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// Constructor
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// Constructor
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JtagDriverSC (sc_core::sc_module_name name,
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JtagDriverSC (sc_core::sc_module_name name,
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sc_core::sc_fifo<TapAction *> *_tapActionQueue);
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sc_core::sc_fifo < TapAction * >*_tapActionQueue);
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private:
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private:
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// JTAG instructions
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// JTAG instructions
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static const uint32_t CHAIN_SELECT_IR = 0x3; //!< Chain Select instruction
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static const uint32_t CHAIN_SELECT_IR = 0x3; //!< Chain Select instruction
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// Bits for the RISCOP register
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// Bits for the RISCOP register
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static const uint32_t RISCOP_STALL = 0x00000001; //!< Stall the CPU
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static const uint32_t RISCOP_STALL = 0x00000001; //!< Stall the CPU
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static const uint32_t RISCOP_RESET = 0x00000002; //!< Reset the CPU
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static const uint32_t RISCOP_RESET = 0x00000002; //!< Reset the CPU
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//! The JTAG fifo we queue on
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//! The JTAG fifo we queue on
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sc_core::sc_fifo<TapAction *> *tapActionQueue;
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sc_core::sc_fifo < TapAction * >*tapActionQueue;
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//! The currently selected scan chain
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//! The currently selected scan chain
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int currentScanChain;
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int currentScanChain;
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// SystemC thread to queue actions
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// SystemC thread to queue actions
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// Or1k JTAG actions
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// Or1k JTAG actions
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void reset ();
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void reset ();
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void selectChain (int chain);
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void selectChain (int chain);
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uint32_t readReg (uint32_t addr);
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uint32_t readReg (uint32_t addr);
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uint32_t readReg1 (uint32_t addr,
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uint32_t readReg1(uint32_t addr, int bitSizeNoCrc);
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int bitSizeNoCrc);
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uint32_t readReg1 (uint64_t *dRegArray,
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uint32_t readReg1 (uint64_t *dRegArray,
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uint32_t addr,
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uint32_t addr, int bitSizeNoCrc);
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int bitSizeNoCrc);
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void writeReg(uint32_t addr, uint32_t data);
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void writeReg (uint32_t addr,
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uint32_t data);
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// Utilities to compute CRC-8 the OpenRISC way. Versions for "big" and
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// Utilities to compute CRC-8 the OpenRISC way. Versions for "big" and
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// "small" numbers.
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// "small" numbers.
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uint8_t crc8 (uint64_t data,
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uint8_t crc8(uint64_t data, int size);
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int size);
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uint8_t crc8(uint64_t * dataArray, int size);
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uint8_t crc8 (uint64_t *dataArray,
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int size);
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// Utilities to insert and extract bit strings from vectors
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// Utilities to insert and extract bit strings from vectors
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void insertBits (uint64_t str,
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void insertBits (uint64_t str,
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int strLen,
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int strLen, uint64_t * array, int startBit);
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uint64_t *array,
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uint64_t extractBits(uint64_t * array, int startBit, int strLen);
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int startBit);
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uint64_t extractBits (uint64_t *array,
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int startBit,
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int strLen);
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}; // JtagDriverSC ()
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}; // JtagDriverSC ()
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#endif // JTAG_DRIVER_SC__H
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#endif // JTAG_DRIVER_SC__H
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