65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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/*
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* Copyright (C) 2020 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
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*/
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#ifndef FTDIJTAGMPSSE_H
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#define FTDIJTAGMPSSE_H
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#include <ftdi.h>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "jtagInterface.hpp"
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#include "ftdipp_mpsse.hpp"
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/*!
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* \file FtdiJtagMPSSE.hpp
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* \class FtdiJtagMPSSE
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* \brief concrete class between jtag implementation and FTDI capable bitbang mode
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* \author Gwenhael Goavec-Merou
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*/
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class FtdiJtagMPSSE : public JtagInterface, public FTDIpp_MPSSE {
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public:
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FtdiJtagMPSSE(const FTDIpp_MPSSE::mpsse_bit_config &cable, std::string dev,
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const std::string &serial, uint32_t clkHZ, bool invert_read_edge,
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int8_t verbose = 0);
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virtual ~FtdiJtagMPSSE();
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int setClkFreq(uint32_t clkHZ) override;
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uint32_t getClkFreq() override {return FTDIpp_MPSSE::getClkFreq();}
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/* TMS */
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int writeTMS(uint8_t *tms, uint32_t len, bool flush_buffer) override;
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/* clock */
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int toggleClk(uint8_t tms, uint8_t tdi, uint32_t clk_len) override;
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/* TDI */
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int writeTDI(uint8_t *tx, uint8_t *rx, uint32_t len, bool end) override;
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/*!
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* \brief return internal buffer size (in byte).
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* \return _buffer_size -3 for mpsse cmd + size, -1 for potential SEND_IMMEDIATE
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*/
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int get_buffer_size() override { return _buffer_size-3; }
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bool isFull() override { return false;}
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int flush() override;
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private:
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void init_internal(const FTDIpp_MPSSE::mpsse_bit_config &cable);
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/*!
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* \brief configure read and write edge (pos or neg), with freq < 15MHz
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* neg is used for write and pos to sample. with freq >= 15MHz
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* pos is used for write and neg to sample
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*/
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void config_edge();
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bool _ch552WA; /* avoid errors with SiPeed tangNano */
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uint8_t _write_mode; /**< write edge configuration */
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uint8_t _read_mode; /**< read edge configuration */
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bool _invert_read_edge; /**< read edge selection (false: pos, true: neg) */
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};
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#endif
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