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julius |
/*$$HEADER*/
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/******************************************************************************/
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/* */
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/* H E A D E R I N F O R M A T I O N */
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/* */
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/******************************************************************************/
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// Project Name : OpenRISC Debug Proxy
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// File Name : or_debug_proxy.c
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// Prepared By : jb
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// Project Start : 2008-10-01
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/*$$COPYRIGHT NOTICE*/
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/******************************************************************************/
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/* */
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/* C O P Y R I G H T N O T I C E */
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/* */
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/******************************************************************************/
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/*
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation;
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version 2.1 of the License, a copy of which is available from
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http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*$$DESCRIPTION*/
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/******************************************************************************/
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/* */
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/* D E S C R I P T I O N */
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/* */
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/******************************************************************************/
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//
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// The entry point for the OpenRISC debug proxy console application. Is
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// compilable under both Linux/Unix systems and Cygwin Windows.
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//
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#include <assert.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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// Windows includes
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#ifdef CYGWIN_COMPILE
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#include <windows.h>
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#include "win_FTCJTAG.h"
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#include "win_FTCJTAG_ptrs.h"
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#else
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#include <signal.h>
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void catch_sigint(int sig_num); // First param must be "int"
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#endif
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#include "gdb.h"
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#ifdef USB_ENDPOINT_ENABLED
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#include "usb_functions.h"
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#endif
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#ifdef VPI_ENDPOINT_ENABLED
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#include "vpi_functions.h"
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#endif
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#include "or_debug_proxy.h"
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// Defines of endpoint numbers
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#define ENDPOINT_TARGET_NONE 0
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#define ENDPOINT_TARGET_USB 1
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#define ENDPOINT_TARGET_VPI 2
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static int endpoint_target; // Either VPI interface via sockets, or the USB device
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#define GDB_PROTOCOL_JTAG 1
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#define GDB_PROTOCOL_RSP 2
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#define GDB_PROTOCOL_NONE 3
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int err; // Global error value
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/* Currently selected scan chain - just to prevent unnecessary transfers. */
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int current_chain = -1;
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/* The chain that should be currently selected. */
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int dbg_chain = -1;
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int main(int argc, char *argv[]) {
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char *s;
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int gdb_protocol = GDB_PROTOCOL_NONE;
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endpoint_target = ENDPOINT_TARGET_NONE;
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int inp_arg = 1;
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// Check we were compiled with at least one endpoint enabled
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#ifndef USB_ENDPOINT_ENABLED
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#ifndef VPI_ENDPOINT_ENABLED
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printf("No endpoints enabled.\nRecompile the proxy with at least one endpoint enabled\n");
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exit(0);
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#endif
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#endif
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// init our global error number
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err = DBG_ERR_OK;
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// Parse input options
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if (argc < 3)
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{
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print_usage();
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exit(1);
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}
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err = DBG_ERR_OK;
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srand(getpid());
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// Parse through the input, check what we've been given
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while ( argv[inp_arg] != NULL )
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{
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46 |
julius |
if(strcmp(argv[inp_arg], "-r") == 0)
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julius |
{
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gdb_protocol = GDB_PROTOCOL_RSP;
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endpoint_target = ENDPOINT_TARGET_USB;
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}
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else if(strcmp(argv[inp_arg], "-v") == 0)
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{
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gdb_protocol = GDB_PROTOCOL_RSP;
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endpoint_target = ENDPOINT_TARGET_VPI;
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}
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else
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{
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serverPort = strtol(argv[2],&s,10);
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}
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inp_arg++;
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}
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if(endpoint_target == ENDPOINT_TARGET_NONE || gdb_protocol == GDB_PROTOCOL_NONE || serverPort > 65535 || *s != '\0')
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{
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print_usage();
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exit(1);
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}
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#ifdef CYGWIN_COMPILE
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// Load the FTCJTAG DLL function pointers
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if (getFTDIJTAGFunctions() < 0){
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exit(-1);
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}
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#endif
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#ifndef CYGWIN_COMPILE
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// Install a signal handler to exit gracefully
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// when we receive a sigint
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signal(SIGINT, catch_sigint);
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#endif
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/* Initialise connection to our OR1k system */
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current_chain = -1;
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#ifdef USB_ENDPOINT_ENABLED
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/* USB Endpoint */
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if (endpoint_target == ENDPOINT_TARGET_USB)
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{
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printf("\nConnecting to OR1k via USB debug cable\n\n");
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if ((err = usb_dbg_reset())) goto JtagIfError;
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dbg_test(); // Perform some tests
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}
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#endif
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#ifdef VPI_ENDPOINT_ENABLED
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/* RTL simulation endpoint */
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if (endpoint_target == ENDPOINT_TARGET_VPI){
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printf("\nConnecting to OR1k RTL simulation\n\n");
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// Connect to the (hopefully) already running RTL simulation server running via VPI
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vpi_fd = vpi_connect();
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if ((err = vpi_dbg_reset())) goto JtagIfError;
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vpi_dbg_test(); // Perform some tests
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}
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#endif
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/* We have a connection to the target system. Now establish server connection. */
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46 |
julius |
if(gdb_protocol == GDB_PROTOCOL_RSP)
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{ // Connect to RSP server
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/* RSP always starts stalled as though we have just reset the processor. */
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// rsp_exception (EXCEPT_TRAP);
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handle_rsp ();
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julius |
// if((server_fd = GetServerSocket("or1ksim","tcp", serverPort))) {
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julius |
}else {
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julius |
fprintf(stderr,"Cannot start RSP Proxy server on port %d\n", serverPort);
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exit(-1);
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}
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JtagIfError:
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fprintf(stderr,"Connection via USB debug cable failed (err = %d).\nPlease ensure the device is attached and correctly installed\n\n", err);
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exit(-1);
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return 0;
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}
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int dbg_reset()
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{
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#ifdef USB_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_reset();
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#endif
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#ifdef VPI_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_reset();
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#endif
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return DBG_ERR_INVALID_ENDPOINT;
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}
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void dbg_test() {
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#ifdef USB_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_USB) usb_dbg_test();
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#endif
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#ifdef VPI_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_VPI) vpi_dbg_test();
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#endif
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}
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/* Set TAP instruction register */
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int dbg_set_tap_ir(uint32_t ir) {
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#ifdef USB_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_USB) usb_set_tap_ir(ir);
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#endif
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return DBG_ERR_INVALID_ENDPOINT;
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}
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/* Sets scan chain. */
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int dbg_set_chain(uint32_t chain) {
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#ifdef USB_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_set_chain(chain);
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#endif
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#ifdef VPI_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_set_chain(chain);
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#endif
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return DBG_ERR_INVALID_ENDPOINT;
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}
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| 249 |
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| 250 |
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/* sends out a command with 32bit address and 16bit length, if len >= 0 */
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int dbg_command(uint32_t type, uint32_t adr, uint32_t len) {
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// This is never called by any of the VPI functions, so only USB endpoint
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#ifdef USB_ENDPOINT_ENABLED
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_command(type,adr,len);
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#endif
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return DBG_ERR_INVALID_ENDPOINT;
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}
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| 259 |
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/* writes a ctrl reg */
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| 260 |
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int dbg_ctrl(uint32_t reset, uint32_t stall) {
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| 261 |
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#ifdef USB_ENDPOINT_ENABLED
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| 262 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl(reset, stall);
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#endif
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| 264 |
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#ifdef VPI_ENDPOINT_ENABLED
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| 265 |
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_ctrl(reset, stall);
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| 266 |
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#endif
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| 267 |
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return DBG_ERR_INVALID_ENDPOINT;
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| 268 |
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}
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| 269 |
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| 270 |
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/* reads control register */
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| 271 |
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int dbg_ctrl_read(uint32_t *reset, uint32_t *stall) {
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| 272 |
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#ifdef USB_ENDPOINT_ENABLED
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| 273 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl_read(reset, stall);
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| 274 |
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#endif
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| 275 |
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#ifdef VPI_ENDPOINT_ENABLED
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| 276 |
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_ctrl_read(reset, stall);
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| 277 |
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#endif
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| 278 |
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return DBG_ERR_INVALID_ENDPOINT;
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| 279 |
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}
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| 280 |
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|
| 281 |
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/* issues a burst read/write */
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| 282 |
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int dbg_go(unsigned char *data, uint16_t len, uint32_t read) {
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| 283 |
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// Only USB endpouint32_t option here
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| 284 |
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#ifdef USB_ENDPOINT_ENABLED
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| 285 |
|
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_go(data, len, read);
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| 286 |
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#endif
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| 287 |
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return DBG_ERR_INVALID_ENDPOINT;
|
| 288 |
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}
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| 289 |
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| 290 |
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/* read a word from wishbone */
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| 291 |
|
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int dbg_wb_read32(uint32_t adr, uint32_t *data) {
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| 292 |
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#ifdef USB_ENDPOINT_ENABLED
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| 293 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read32(adr, data);
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| 294 |
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#endif
|
| 295 |
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#ifdef VPI_ENDPOINT_ENABLED
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| 296 |
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_wb_read32(adr, data);
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| 297 |
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#endif
|
| 298 |
|
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return DBG_ERR_INVALID_ENDPOINT;
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| 299 |
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}
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| 300 |
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| 301 |
46 |
julius |
/* write a word to wishbone */
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| 302 |
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int dbg_wb_write8(uint32_t adr, uint8_t data) {
|
| 303 |
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#ifdef USB_ENDPOINT_ENABLED
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| 304 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write8( adr, data);
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| 305 |
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#endif
|
| 306 |
|
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return DBG_ERR_INVALID_ENDPOINT;
|
| 307 |
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}
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| 308 |
39 |
julius |
|
| 309 |
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/* write a word to wishbone */
|
| 310 |
|
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int dbg_wb_write32(uint32_t adr, uint32_t data) {
|
| 311 |
|
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#ifdef USB_ENDPOINT_ENABLED
|
| 312 |
|
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write32( adr, data);
|
| 313 |
|
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#endif
|
| 314 |
|
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#ifdef VPI_ENDPOINT_ENABLED
|
| 315 |
|
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_wb_write32( adr, data);
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| 316 |
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#endif
|
| 317 |
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return DBG_ERR_INVALID_ENDPOINT;
|
| 318 |
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}
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| 319 |
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| 320 |
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/* read a block from wishbone */
|
| 321 |
|
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int dbg_wb_read_block32(uint32_t adr, uint32_t *data, uint32_t len) {
|
| 322 |
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#ifdef USB_ENDPOINT_ENABLED
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| 323 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read_block32( adr, data, len);
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| 324 |
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#endif
|
| 325 |
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#ifdef VPI_ENDPOINT_ENABLED
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| 326 |
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if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_wb_read_block32( adr, data, len);
|
| 327 |
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#endif
|
| 328 |
|
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return DBG_ERR_INVALID_ENDPOINT;
|
| 329 |
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}
|
| 330 |
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| 331 |
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| 332 |
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/* write a block to wishbone */
|
| 333 |
|
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int dbg_wb_write_block32(uint32_t adr, uint32_t *data, uint32_t len) {
|
| 334 |
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#ifdef USB_ENDPOINT_ENABLED
|
| 335 |
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if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write_block32( adr, data, len);
|
| 336 |
|
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#endif
|
| 337 |
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#ifdef VPI_ENDPOINT_ENABLED
|
| 338 |
|
|
if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_wb_write_block32( adr, data, len);
|
| 339 |
|
|
#endif
|
| 340 |
|
|
return DBG_ERR_INVALID_ENDPOINT;
|
| 341 |
|
|
}
|
| 342 |
|
|
|
| 343 |
|
|
/* read a register from cpu */
|
| 344 |
|
|
int dbg_cpu0_read(uint32_t adr, uint32_t *data) {
|
| 345 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 346 |
|
|
if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read( adr, data);
|
| 347 |
|
|
#endif
|
| 348 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 349 |
|
|
if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_cpu0_read( adr, data);
|
| 350 |
|
|
#endif
|
| 351 |
|
|
return DBG_ERR_INVALID_ENDPOINT;
|
| 352 |
|
|
}
|
| 353 |
|
|
|
| 354 |
|
|
/* write a cpu register */
|
| 355 |
|
|
int dbg_cpu0_write(uint32_t adr, uint32_t data) {
|
| 356 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 357 |
|
|
if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write( adr, data);
|
| 358 |
|
|
#endif
|
| 359 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 360 |
|
|
if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_cpu0_write( adr, data);
|
| 361 |
|
|
#endif
|
| 362 |
|
|
return DBG_ERR_INVALID_ENDPOINT;
|
| 363 |
|
|
}
|
| 364 |
|
|
|
| 365 |
|
|
/* write a cpu module register */
|
| 366 |
|
|
int dbg_cpu0_write_ctrl(uint32_t adr, unsigned char data) {
|
| 367 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 368 |
|
|
if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write_ctrl( adr, data);
|
| 369 |
|
|
#endif
|
| 370 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 371 |
|
|
if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_cpu0_write_ctrl( adr, data);
|
| 372 |
|
|
#endif
|
| 373 |
|
|
return DBG_ERR_INVALID_ENDPOINT;
|
| 374 |
|
|
}
|
| 375 |
|
|
|
| 376 |
|
|
|
| 377 |
|
|
/* read a register from cpu module */
|
| 378 |
|
|
int dbg_cpu0_read_ctrl(uint32_t adr, unsigned char *data) {
|
| 379 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 380 |
|
|
if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read_ctrl( adr, data);
|
| 381 |
|
|
#endif
|
| 382 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 383 |
|
|
if (endpoint_target == ENDPOINT_TARGET_VPI) return vpi_dbg_cpu0_read_ctrl( adr, data);
|
| 384 |
|
|
#endif
|
| 385 |
|
|
return DBG_ERR_INVALID_ENDPOINT;
|
| 386 |
|
|
}
|
| 387 |
|
|
|
| 388 |
|
|
|
| 389 |
|
|
void test_sdram(void) {
|
| 390 |
|
|
return;
|
| 391 |
|
|
}
|
| 392 |
|
|
|
| 393 |
|
|
// Close down gracefully when we receive any kill signals
|
| 394 |
|
|
void catch_sigint(int sig_num)
|
| 395 |
|
|
{
|
| 396 |
|
|
// Close down any potentially open sockets and USB handles
|
| 397 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 398 |
|
|
if (vpi_fd) close(vpi_fd);
|
| 399 |
|
|
#endif
|
| 400 |
|
|
if (server_fd) close(server_fd);
|
| 401 |
|
|
gdb_close();
|
| 402 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 403 |
|
|
usb_close_device_handle();
|
| 404 |
|
|
#endif
|
| 405 |
|
|
printf("\nInterrupt signal received. Closing down connections and exiting\n\n");
|
| 406 |
|
|
exit(0);
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
void print_usage()
|
| 410 |
|
|
{
|
| 411 |
|
|
printf("Invalid or insufficient arguments\n");
|
| 412 |
|
|
printf("\n");
|
| 413 |
|
|
printf("OpenRISC GDB proxy server usage: or_debug_proxy -server_type port\n");
|
| 414 |
|
|
printf("\n");
|
| 415 |
|
|
printf("server_type:\n");
|
| 416 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 417 |
|
|
printf("\t-r Start a server using RSP, connection to hadware target via\n\t USB\n");
|
| 418 |
|
|
printf("\t-j Start a server using legacy OR remote JTAG protocol, to\n\t hardware target via USB\n");
|
| 419 |
|
|
#endif
|
| 420 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 421 |
|
|
printf("\t-v Start a server using RSP, connection to RTL sim. VPI server\n\t target via sockets\n");
|
| 422 |
|
|
#endif
|
| 423 |
|
|
printf("\n");
|
| 424 |
|
|
printf("port:\n");
|
| 425 |
|
|
printf("\tAny free port within the usable range of 0 - 65535\n");
|
| 426 |
|
|
printf("\n");
|
| 427 |
|
|
printf("Example:\n");
|
| 428 |
|
|
#ifdef USB_ENDPOINT_ENABLED
|
| 429 |
|
|
printf("\tStart a GDB server on port 5555, using RSP, connecting to\n\thardware target via USB\n");
|
| 430 |
|
|
printf("\tor_debug_proxy -r 5555\n");
|
| 431 |
|
|
printf("\n");
|
| 432 |
|
|
#endif
|
| 433 |
|
|
#ifdef VPI_ENDPOINT_ENABLED
|
| 434 |
|
|
printf("\tStart a GDB server on port 5555, using RSP, connecting to\n\trtl target via VPI\n");
|
| 435 |
|
|
printf("\tor_debug_proxy -v 5555\n");
|
| 436 |
|
|
printf("\n");
|
| 437 |
|
|
#endif
|
| 438 |
|
|
fflush (stdout);
|
| 439 |
|
|
}
|
