introduce DirtyJTAG cable
This commit is contained in:
Gwenhael Goavec-Merou
parent
ace902cb98
commit
27b0c8a664
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@ -45,6 +45,7 @@ check_cxx_source_compiles("
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argp_parse(NULL, argc, argv, 0, 0, NULL);}" HAVE_ARGP)
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set(OPENFPGALOADER_SOURCE
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src/dirtyJtag.cpp
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src/spiFlash.cpp
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src/epcq.cpp
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src/svf_jtag.cpp
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@ -71,6 +72,7 @@ set(OPENFPGALOADER_SOURCE
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set(OPENFPGALOADER_HEADERS
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src/altera.hpp
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src/dirtyJtag.hpp
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src/progressBar.hpp
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src/bitparser.hpp
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src/ftdiJtagBitbang.hpp
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@ -29,6 +29,7 @@ __Supported (tested) FPGA:__
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__Supported cables:__
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* [digilent_hs2](https://store.digilentinc.com/jtag-hs2-programming-cable/): jtag programmer cable from digilent
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* [DirtyJTAG](https://github.com/jeanthom/DirtyJTAG): JTAG probe firmware for STM32F1
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* JTAG-HS3: jtag programmer cable from digilent
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* FT2232: generic programmer cable based on Ftdi FT2232
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* Tang Nano USB-JTAG interface: FT2232C clone based on CH552 microcontroler
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@ -11,7 +11,8 @@
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*/
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enum {
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MODE_FTDI_BITBANG = 0, /*! used with ft232RL/ft231x */
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MODE_FTDI_SERIAL = 1 /*! ft2232, ft232H */
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MODE_FTDI_SERIAL = 1, /*! ft2232, ft232H */
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MODE_DIRTYJTAG = 2 /*! JTAG probe firmware for STM32F1 */
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} communication_type_t;
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typedef struct {
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@ -27,6 +28,7 @@ static std::map <std::string, cable_t> cable_list = {
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{"digilent", {MODE_FTDI_SERIAL, {0x0403, 0x6010, INTERFACE_A, 0xe8, 0xeb, 0x00, 0x60}}},
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{"digilent_hs2", {MODE_FTDI_SERIAL, {0x0403, 0x6014, INTERFACE_A, 0xe8, 0xeb, 0x00, 0x60}}},
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{"digilent_hs3", {MODE_FTDI_SERIAL, {0x0403, 0x6014, INTERFACE_A, 0x88, 0x8B, 0x20, 0x30}}},
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{"dirtyJtag", {MODE_DIRTYJTAG, {}}},
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{"ft2232", {MODE_FTDI_SERIAL, {0x0403, 0x6010, INTERFACE_A, 0x08, 0x0B, 0x08, 0x0B}}},
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{"ft231X", {MODE_FTDI_BITBANG, {0x0403, 0x6015, INTERFACE_A, 0x00, 0x00, 0x00, 0x00}}},
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{"ft232", {MODE_FTDI_SERIAL, {0x0403, 0x6014, INTERFACE_A, 0x08, 0x0B, 0x08, 0x0B}}},
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@ -0,0 +1,280 @@
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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 <libusb.h>
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#include <stdio.h>
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#include <string.h>
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#include <iostream>
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#include <map>
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#include <vector>
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#include <string>
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#include "dirtyJtag.hpp"
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#include "display.hpp"
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using namespace std;
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#define DIRTYJTAG_VID 0x1209
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#define DIRTYJTAG_PID 0xC0CA
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#define DIRTYJTAG_WRITE_EP 0x01
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#define DIRTYJTAG_READ_EP 0x82
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enum dirtyJtagCmd {
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CMD_STOP = 0x00,
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CMD_INFO = 0x01,
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CMD_FREQ = 0x02,
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CMD_XFER = 0x03,
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CMD_SETSIG = 0x04,
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CMD_GETSIG = 0x05,
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CMD_CLK = 0x06
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};
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enum dirtyJtagSig {
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SIG_TCK = (1 << 1),
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SIG_TDI = (1 << 2),
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SIG_TDO = (1 << 3),
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SIG_TMS = (1 << 4)
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};
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DirtyJtag::DirtyJtag(uint32_t clkHZ, bool verbose):
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_verbose(verbose),
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dev_handle(NULL), usb_ctx(NULL), _tdi(0), _tms(0)
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{
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int ret;
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if (libusb_init(&usb_ctx) < 0) {
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cerr << "libusb init failed" << endl;
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throw std::exception();
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}
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dev_handle = libusb_open_device_with_vid_pid(usb_ctx,
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DIRTYJTAG_VID, DIRTYJTAG_PID);
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if (!dev_handle) {
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cerr << "fails to open device" << endl;
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libusb_exit(usb_ctx);
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throw std::exception();
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}
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ret = libusb_claim_interface(dev_handle, 0);
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if (ret) {
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cerr << "libusb error while claiming DirtyJTAG interface #0" << endl;
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libusb_close(dev_handle);
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libusb_exit(usb_ctx);
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throw std::exception();
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}
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if (clkHZ > 600000) {
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printInfo("DirtyJTAG probe limited to 600kHz");
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clkHZ = 600000;
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}
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if (setClkFreq(clkHZ) < 0) {
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cerr << "Fail to set frequency" << endl;
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throw std::exception();
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}
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}
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DirtyJtag::~DirtyJtag()
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{
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if (dev_handle)
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libusb_close(dev_handle);
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if (usb_ctx)
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libusb_exit(usb_ctx);
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}
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int DirtyJtag::setClkFreq(uint32_t clkHZ)
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{
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int actual_length;
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int ret;
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uint8_t buf[] = {CMD_FREQ,
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static_cast<uint8_t>(0xff & ((clkHZ / 1000) >> 8)),
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static_cast<uint8_t>(0xff & ((clkHZ / 1000) )),
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CMD_STOP};
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ret = libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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buf, 4, &actual_length, 1000);
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if (ret < 0) {
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cerr << "setClkFreq: usb bulk write failed " << ret << endl;
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return -EXIT_FAILURE;
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}
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return clkHZ;
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}
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int DirtyJtag::writeTMS(uint8_t *tms, int len, bool flush_buffer)
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{
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(void) flush_buffer;
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if (len == 0)
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return 0;
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for (int i = 0; i < len; i++) {
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bool val = (tms[i >> 3] & (1 << (i & 0x07)));
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sendBitBang(SIG_TMS, ((val)?SIG_TMS : 0), NULL, (i == len-1));
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}
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return len;
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}
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int DirtyJtag::toggleClk(uint8_t tms, uint8_t tdi, uint32_t clk_len)
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{
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int actual_length;
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uint8_t buf[] = {CMD_CLK,
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static_cast<uint8_t>(((tms) ? SIG_TMS : 0) | ((tdi) ? SIG_TDI : 0)),
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0,
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CMD_STOP};
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while (clk_len > 0) {
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buf[2] = (clk_len > 100) ? 100 : (uint8_t)clk_len;
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int ret = libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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buf, 4, &actual_length, 1000);
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if (ret < 0) {
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cerr << "toggleClk: usb bulk write failed " << ret << endl;
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return -EXIT_FAILURE;
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}
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clk_len -= buf[2];
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}
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return EXIT_SUCCESS;
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}
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int DirtyJtag::flush()
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{
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return 0;
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}
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int DirtyJtag::writeTDI(uint8_t *tx, uint8_t *rx, uint32_t len, bool end)
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{
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int actual_length;
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uint32_t real_bit_len = len - (end ? 1 : 0);
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uint32_t real_byte_len = (len + 7) / 8;
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uint8_t tx_cpy[real_byte_len];
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uint8_t tx_buf[33], rx_buf[32];
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uint8_t *tx_ptr = tx, *rx_ptr = rx;
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if (tx)
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memcpy(tx_cpy, tx, real_byte_len);
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else
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bzero(tx_cpy, real_byte_len);
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tx_ptr = tx_cpy;
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/* first send 30 x 8 bits */
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tx_buf[0] = CMD_XFER;
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while (real_bit_len != 0) {
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uint8_t bit_to_send = (real_bit_len > 240) ? 240 : real_bit_len;
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uint8_t byte_to_send = (bit_to_send + 7) / 8;
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tx_buf[1] = bit_to_send;
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bzero(tx_buf + 2, 30);
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for (int i = 0; i < bit_to_send; i++)
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if (tx_ptr[i >> 3] & (1 << (i & 0x07)))
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tx_buf[2 + (i >> 3)] |= (0x80 >> (i & 0x07));
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tx_buf[2 + byte_to_send] = CMD_STOP;
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int ret = libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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(unsigned char *)tx_buf, 33, &actual_length, 1000);
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if (ret < 0) {
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cerr << "writeTDI: fill: usb bulk write failed " << ret << endl;
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return EXIT_FAILURE;
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}
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ret = libusb_bulk_transfer(dev_handle, DIRTYJTAG_READ_EP,
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rx_buf, 32, &actual_length, 1000);
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if (ret < 0) {
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cerr << "writeTDI: read: usb bulk write failed " << ret << endl;
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return EXIT_FAILURE;
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}
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if (rx) {
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for (int i = 0; i < bit_to_send; i++)
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rx_ptr[i >> 3] = (rx_ptr[i >> 3] >> 1) |
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(((rx_buf[i >> 3] << (i&0x07)) & 0x80));
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rx_ptr += byte_to_send;
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}
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real_bit_len -= bit_to_send;
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tx_ptr += byte_to_send;
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}
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/* this step exist only with [D|I]R_SHIFT */
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if (end) {
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int pos = len-1;
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uint8_t sig;
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unsigned char last_bit =
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(tx_buf[pos >> 3] & (1 << pos & 0x07)) ? SIG_TDI: 0;
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if (sendBitBang(SIG_TMS | SIG_TDI,
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SIG_TMS | (last_bit), &sig, true) != 0) {
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cerr << "writeTDI: last bit error" << endl;
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return -EXIT_FAILURE;
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}
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if (rx) {
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rx[pos >> 3] >>= 1;
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if (sig & SIG_TDO) {
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rx[pos >> 3] |= (1 << (pos & 0x07));;
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}
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}
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}
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return EXIT_SUCCESS;
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}
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int DirtyJtag::sendBitBang(uint8_t mask, uint8_t val, uint8_t *read, bool last)
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{
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int actual_length;
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mask |= SIG_TCK;
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uint8_t buf[] = { CMD_SETSIG,
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static_cast<uint8_t>(mask),
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static_cast<uint8_t>(val),
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CMD_SETSIG,
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static_cast<uint8_t>(mask),
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static_cast<uint8_t>(val | SIG_TCK),
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CMD_STOP};
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if (libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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buf, 7, &actual_length, 1000) < 0) {
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cerr << "sendBitBang: usb bulk write failed 1" << endl;
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return -EXIT_FAILURE;
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}
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if (read) {
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uint8_t rd_buf[] = {CMD_GETSIG, CMD_STOP};
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if (libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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rd_buf, 2, &actual_length, 1000) < 0) {
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cerr << "sendBitBang: usb bulk write failed 3" << endl;
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return -EXIT_FAILURE;
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}
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if (libusb_bulk_transfer(dev_handle, DIRTYJTAG_READ_EP,
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read, 1, &actual_length, 1000) < 0) {
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cerr << "sendBitBang: usb bulk write failed 4" << endl;
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return -EXIT_FAILURE;
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}
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}
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if (last) {
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buf[2] &= ~SIG_TCK;
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buf[3] = CMD_STOP;
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if (libusb_bulk_transfer(dev_handle, DIRTYJTAG_WRITE_EP,
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buf, 4, &actual_length, 1000) < 0) {
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cerr << "sendBitBang usb bulk write failed" << endl;
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return -EXIT_FAILURE;
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}
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}
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return EXIT_SUCCESS;
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}
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@ -0,0 +1,69 @@
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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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#ifndef SRC_DIRTYJTAG_HPP_
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#define SRC_DIRTYJTAG_HPP_
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#include <libusb.h>
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#include "jtagInterface.hpp"
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/*!
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* \file DirtyJtag.hpp
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* \class DirtyJtag
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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 DirtyJtag : public JtagInterface {
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public:
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DirtyJtag(uint32_t clkHZ, bool verbose);
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virtual ~DirtyJtag();
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int setClkFreq(uint32_t clkHZ) override;
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int setClkFreq(uint32_t clkHZ, char use_divide_by_5) override {
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(void)use_divide_by_5; return setClkFreq(clkHZ);}
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/* TMS */
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int writeTMS(uint8_t *tms, int len, bool flush_buffer) 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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/* clk */
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int toggleClk(uint8_t tms, uint8_t tdo, uint32_t clk_len) override;
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/*!
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* \brief return internal buffer size (in byte).
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* \return _buffer_size divided by 2 (two byte for clk) and divided by 8 (one
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* state == one byte)
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*/
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int get_buffer_size() override { return 0;}
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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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bool _verbose;
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int sendBitBang(uint8_t mask, uint8_t val, uint8_t *read, bool last);
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libusb_device_handle *dev_handle;
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libusb_context *usb_ctx;
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uint8_t _tdi;
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uint8_t _tms;
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};
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#endif // SRC_DIRTYJTAG_HPP_
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14
src/jtag.cpp
14
src/jtag.cpp
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@ -29,6 +29,7 @@
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#include "ftdipp_mpsse.hpp"
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#include "ftdiJtagBitbang.hpp"
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#include "ftdiJtagMPSSE.hpp"
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#include "dirtyJtag.hpp"
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using namespace std;
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@ -92,12 +93,21 @@ Jtag::~Jtag()
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void Jtag::init_internal(cable_t &cable, const string &dev,
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const jtag_pins_conf_t *pin_conf, uint32_t clkHZ)
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{
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if (cable.type == MODE_FTDI_BITBANG) {
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switch (cable.type) {
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case MODE_FTDI_BITBANG:
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if (pin_conf == NULL)
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throw std::exception();
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_jtag = new FtdiJtagBitBang(cable.config, pin_conf, dev, clkHZ, _verbose);
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} else {
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break;
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case MODE_FTDI_SERIAL:
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_jtag = new FtdiJtagMPSSE(cable.config, dev, clkHZ, _verbose);
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break;
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case MODE_DIRTYJTAG:
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_jtag = new DirtyJtag(clkHZ, _verbose);
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break;
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default:
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std::cerr << "Jtag: unknown cable type" << std::endl;
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throw std::exception();
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}
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_tms_buffer = (unsigned char *)malloc(sizeof(unsigned char) * _tms_buffer_size);
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