65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
#include "altera.hpp"
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#include "ftdijtag.hpp"
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#include "device.hpp"
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#include "epcq.hpp"
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#define IDCODE 6
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#define IRLENGTH 10
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#define BIT_FOR_FLASH "/usr/local/share/cycloader/test_sfl.svf"
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Altera::Altera(FtdiJtag *jtag, std::string filename):Device(jtag, filename),
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_svf(_jtag)
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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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_mode = Device::SPI_MODE;
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}
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}
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Altera::~Altera()
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{}
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void Altera::reset()
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{
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/* PULSE_NCONFIG */
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unsigned char tx_buff[2] = {0x01, 0x00};
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_jtag->set_state(FtdiJtag::TEST_LOGIC_RESET);
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_jtag->shiftIR(tx_buff, NULL, IRLENGTH);
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_jtag->toggleClk(1);
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_jtag->set_state(FtdiJtag::TEST_LOGIC_RESET);
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}
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void Altera::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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} else if (_mode == Device::SPI_MODE) {
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/* GGM: TODO: fix this issue */
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EPCQ epcq(_jtag->vid(), _jtag->pid(), 2, 6000000);
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_svf.parse(BIT_FOR_FLASH);
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epcq.program(offset, _filename, (_file_extension == "rpd")? true:false);
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reset();
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}
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}
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int Altera::idCode()
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{
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unsigned char tx_data = 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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_jtag->shiftDR(NULL, 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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