70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
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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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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "anlogic.hpp"
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#include "jtag.hpp"
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#include "device.hpp"
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#define IDCODE 6
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#define IRLENGTH 8
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Anlogic::Anlogic(Jtag *jtag, const std::string &filename, bool verbose):
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Device(jtag, filename, verbose), _svf(_jtag, _verbose)
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{
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if (_filename != "") {
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if (_file_extension == "svf")
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_mode = Device::MEM_MODE;
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else
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throw std::exception();
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}
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}
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Anlogic::~Anlogic()
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{}
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void Anlogic::reset()
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{
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}
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void Anlogic::program(unsigned int offset)
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{
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if (_mode == Device::NONE_MODE)
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return;
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/* in all case we consider svf is mandatory
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* MEM_MODE : svf file provided for constructor
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* is the bitstream to use
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* SPI_MODE : svf file provided is bridge to have
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* access to the SPI flash
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*/
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/* mem mode -> svf */
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if (_mode == Device::MEM_MODE) {
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_svf.parse(_filename);
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}
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}
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int Anlogic::idCode()
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{
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unsigned char tx_data[4] = {IDCODE};
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unsigned char rx_data[4];
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_jtag->go_test_logic_reset();
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_jtag->shiftIR(tx_data, NULL, IRLENGTH);
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memset(tx_data, 0, 4);
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_jtag->shiftDR(tx_data, rx_data, 32);
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return ((rx_data[0] & 0x000000ff) |
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((rx_data[1] << 8) & 0x0000ff00) |
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((rx_data[2] << 16) & 0x00ff0000) |
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((rx_data[3] << 24) & 0xff000000));
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}
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