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[/] [openrisc/] [trunk/] [or_debug_proxy/] [src/] [or_debug_proxy.c] - Blame information for rev 438

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/*$$HEADER*/
/******************************************************************************/
/*                                                                            */
/*                    H E A D E R   I N F O R M A T I O N                     */
/*                                                                            */
/******************************************************************************/
 
// Project Name                   : OpenRISC Debug Proxy
// File Name                      : or_debug_proxy.c
// Prepared By                    : jb
// Project Start                  : 2008-10-01
 
/*$$COPYRIGHT NOTICE*/
/******************************************************************************/
/*                                                                            */
/*                      C O P Y R I G H T   N O T I C E                       */
/*                                                                            */
/******************************************************************************/
/*
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation;
  version 2.1 of the License, a copy of which is available from
  http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
 
/*$$DESCRIPTION*/
/******************************************************************************/
/*                                                                            */
/*                           D E S C R I P T I O N                            */
/*                                                                            */
/******************************************************************************/
//
// The entry point for the OpenRISC debug proxy console application. Is 
// compilable under both Linux/Unix systems and Cygwin Windows.
//
 
#include <assert.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
 
// Windows includes
#ifdef CYGWIN_COMPILE
#include <windows.h>
#include "win_FTCJTAG.h"
#include "win_FTCJTAG_ptrs.h"
#else
#include <signal.h>
void catch_sigint(int sig_num); // First param must be "int"
#endif
 
#include "gdb.h"
 
#ifdef USB_ENDPOINT_ENABLED
#include "usb_functions.h"
#endif
 
#include "or_debug_proxy.h"
 
// Defines of endpoint numbers
#define ENDPOINT_TARGET_NONE 0
#define ENDPOINT_TARGET_USB 1
#define ENDPOINT_TARGET_OTHER 2
 
static int endpoint_target; // Value to hold targeted endpoint
 
#define GDB_PROTOCOL_JTAG  1
#define GDB_PROTOCOL_RSP   2
#define GDB_PROTOCOL_NONE  3
 
int err; // Global error value
 
/* Currently selected scan chain - just to prevent unnecessary transfers. */
int current_chain = -1;
 
/* The chain that should be currently selected. */
int dbg_chain = -1;
 
int main(int argc,  char *argv[]) {
 
  char *s;
  int gdb_protocol = GDB_PROTOCOL_NONE;
  endpoint_target = ENDPOINT_TARGET_NONE;
  int inp_arg = 1;
 
  // Check we were compiled with at least one endpoint enabled
#ifndef USB_ENDPOINT_ENABLED
  printf("No endpoints enabled.\nRecompile the proxy with at least one endpoint enabled\n");
  exit(0);
#endif
 
  // init our global error number
  err = DBG_ERR_OK;
 
  // Parse input options
  if (argc < 3)
    {
      print_usage();
      exit(1);
    }
 
  err = DBG_ERR_OK;
  srand(getpid());
 
  // Parse through the input, check what we've been given
 
  while ( argv[inp_arg] != NULL )
    {
      if(strcmp(argv[inp_arg], "-r") == 0)
        {
          gdb_protocol = GDB_PROTOCOL_RSP;
          endpoint_target = ENDPOINT_TARGET_USB;
        }
      else if(strcmp(argv[inp_arg], "-o") == 0)
        {
          gdb_protocol = GDB_PROTOCOL_RSP;
          endpoint_target = ENDPOINT_TARGET_OTHER;
        }
      else
        {
          serverPort = strtol(argv[2],&s,10);
        }
 
      inp_arg++;
    }
 
  if(endpoint_target == ENDPOINT_TARGET_NONE || gdb_protocol == GDB_PROTOCOL_NONE || serverPort > 65535 || *s != '\0')
    {
      print_usage();
      exit(1);
    }
 
#ifdef CYGWIN_COMPILE
  // Load the FTCJTAG DLL function pointers
  if (getFTDIJTAGFunctions() < 0){
    exit(-1);
  }
#endif
 
#ifndef CYGWIN_COMPILE
  // Install a signal handler to exit gracefully
  // when we receive a sigint
  signal(SIGINT, catch_sigint);
#endif
 
  /* Initialise connection to our OR1k system */
  current_chain = -1;
#ifdef USB_ENDPOINT_ENABLED
  /* USB Endpoint */
  if (endpoint_target == ENDPOINT_TARGET_USB)
    {
      printf("\nConnecting to OR1k via USB debug cable\n\n");
      if ((err = usb_dbg_reset())) goto JtagIfError;
      dbg_test(); // Perform some tests
    }
#endif
 
  /* We have a connection to the target system.  Now establish server connection. */
  if(gdb_protocol == GDB_PROTOCOL_RSP)
    { // Connect to RSP server
      /* RSP always starts stalled as though we have just reset the processor. */
      // rsp_exception (EXCEPT_TRAP);
      handle_rsp ();
    // if((server_fd = GetServerSocket("or1ksim","tcp", serverPort))) {
    }else {
    fprintf(stderr,"Cannot start RSP Proxy server on port %d\n", serverPort);
    exit(-1);
  }
 
 
JtagIfError:
  fprintf(stderr,"Connection via USB debug cable failed (err = %d).\nPlease ensure the device is attached and correctly installed\n\n", err);
  exit(-1);
  return 0;
}
 
 
int dbg_reset()
{
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_reset();
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
void dbg_test() {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) usb_dbg_test();
#endif
}
 
/* Set TAP instruction register */
int dbg_set_tap_ir(uint32_t ir) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) usb_set_tap_ir(ir);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* Sets scan chain.  */
int dbg_set_chain(uint32_t chain) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_set_chain(chain);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* sends out a command with 32bit address and 16bit length, if len >= 0 */
int dbg_command(uint32_t type, uint32_t adr, uint32_t len) {
  // This is never called by any of the VPI functions, so only USB endpoint
#ifdef USB_ENDPOINT_ENABLED
 if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_command(type,adr,len);
#endif
 return DBG_ERR_INVALID_ENDPOINT;
}
 
/* writes a ctrl reg */
int dbg_ctrl(uint32_t reset, uint32_t stall) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl(reset, stall);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* reads control register */
int dbg_ctrl_read(uint32_t *reset, uint32_t *stall) {
#ifdef USB_ENDPOINT_ENABLED
    if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl_read(reset, stall);
#endif
    return DBG_ERR_INVALID_ENDPOINT;
}
 
/* issues a burst read/write */
int dbg_go(unsigned char *data, uint16_t len, uint32_t read) {
  // Only USB endpouint32_t option here
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_go(data, len, read);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* read a byte from wishbone */
int dbg_wb_read8(uint32_t adr, uint8_t *data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read8(adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
 
/* read a word from wishbone */
int dbg_wb_read32(uint32_t adr, uint32_t *data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read32(adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* write a word to wishbone */
int dbg_wb_write8(uint32_t adr, uint8_t data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write8( adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* write a word to wishbone */
int dbg_wb_write32(uint32_t adr, uint32_t data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write32( adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* read a block from wishbone */
int dbg_wb_read_block32(uint32_t adr, uint32_t *data, uint32_t len) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read_block32( adr, data, len);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* write a block to wishbone */
int dbg_wb_write_block32(uint32_t adr, uint32_t *data, uint32_t len) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write_block32( adr, data, len);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* read a register from cpu */
int dbg_cpu0_read(uint32_t adr, uint32_t *data, uint32_t length) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read( adr, data, length);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* write a cpu register */
int dbg_cpu0_write(uint32_t adr, uint32_t *data, uint32_t length) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write( adr, data, length);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
/* write a cpu module register */
int dbg_cpu0_write_ctrl(uint32_t adr, unsigned char data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write_ctrl( adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
 
/* read a register from cpu module */
int dbg_cpu0_read_ctrl(uint32_t adr, unsigned char *data) {
#ifdef USB_ENDPOINT_ENABLED
  if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read_ctrl( adr, data);
#endif
  return DBG_ERR_INVALID_ENDPOINT;
}
 
 
void test_sdram(void) {
        return;
}
 
// Close down gracefully when we receive any kill signals
void catch_sigint(int sig_num)
{
  // Close down any potentially open sockets and USB handles
  if (server_fd) close(server_fd);
  gdb_close();
#ifdef USB_ENDPOINT_ENABLED
  usb_close_device_handle();
#endif
  printf("\nInterrupt signal received. Closing down connections and exiting\n\n");
  exit(0);
}
 
void print_usage()
{
  printf("Invalid or insufficient arguments\n");
  printf("\n");
  printf("OpenRISC GDB proxy server usage: or_debug_proxy -server_type port\n");
  printf("\n");
  printf("server_type:\n");
#ifdef USB_ENDPOINT_ENABLED
  printf("\t-r Start a server using RSP, connection to hadware target via\n\t   USB\n");
  printf("\t-j Start a server using legacy OR remote JTAG protocol, to\n\t   hardware target via USB\n");
#endif
  printf("\n");
  printf("port:\n");
  printf("\tAny free port within the usable range of 0 - 65535\n");
  printf("\n");
  printf("Example:\n");
#ifdef USB_ENDPOINT_ENABLED
  printf("\tStart a GDB server on port 5555, using RSP, connecting to\n\thardware target via USB\n");
  printf("\tor_debug_proxy -r 5555\n");
  printf("\n");
#endif
  fflush (stdout);
}

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[/] [openrisc/] [trunk/] [or_debug_proxy/] [src/] [or_debug_proxy.c] - Blame information for rev 438

Line No.	Rev	Author	Line
1	39	julius	`/$$HEADER/`
2			`/******************************************************************************/`
3			`/* */`
4			`/* H E A D E R I N F O R M A T I O N */`
5			`/* */`
6			`/******************************************************************************/`
7
8			`// Project Name : OpenRISC Debug Proxy`
9			`// File Name : or_debug_proxy.c`
10			`// Prepared By : jb`
11			`// Project Start : 2008-10-01`
12
13			`/$$COPYRIGHT NOTICE/`
14			`/******************************************************************************/`
15			`/* */`
16			`/* C O P Y R I G H T N O T I C E */`
17			`/* */`
18			`/******************************************************************************/`
19			`/*`
20			`This library is free software; you can redistribute it and/or`
21			`modify it under the terms of the GNU Lesser General Public`
22			`License as published by the Free Software Foundation;`
23			`version 2.1 of the License, a copy of which is available from`
24			`http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt.`
25
26			`This library is distributed in the hope that it will be useful,`
27			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
28			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
29			`Lesser General Public License for more details.`
30
31			`You should have received a copy of the GNU Lesser General Public`
32			`License along with this library; if not, write to the Free Software`
33			`Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA`
34			`*/`
35
36			`/$$DESCRIPTION/`
37			`/******************************************************************************/`
38			`/* */`
39			`/* D E S C R I P T I O N */`
40			`/* */`
41			`/******************************************************************************/`
42			`//`
43			`// The entry point for the OpenRISC debug proxy console application. Is`
44			`// compilable under both Linux/Unix systems and Cygwin Windows.`
45			`//`
46
47			`#include <assert.h>`
48			`#include <stdio.h>`
49			`#include <ctype.h>`
50			`#include <string.h>`
51			`#include <stdlib.h>`
52			`#include <unistd.h>`
53			`#include <stdarg.h>`
54			`#include <sys/stat.h>`
55			`#include <sys/types.h>`
56
57			`// Windows includes`
58			`#ifdef CYGWIN_COMPILE`
59			`#include <windows.h>`
60			`#include "win_FTCJTAG.h"`
61			`#include "win_FTCJTAG_ptrs.h"`
62			`#else`
63			`#include <signal.h>`
64			`void catch_sigint(int sig_num); // First param must be "int"`
65			`#endif`
66
67			`#include "gdb.h"`
68
69			`#ifdef USB_ENDPOINT_ENABLED`
70			`#include "usb_functions.h"`
71			`#endif`
72
73			`#include "or_debug_proxy.h"`
74
75			`// Defines of endpoint numbers`
76			`#define ENDPOINT_TARGET_NONE 0`
77			`#define ENDPOINT_TARGET_USB 1`
78	376	julius	`#define ENDPOINT_TARGET_OTHER 2`
79	39	julius
80	376	julius	`static int endpoint_target; // Value to hold targeted endpoint`
81	39	julius
82			`#define GDB_PROTOCOL_JTAG 1`
83			`#define GDB_PROTOCOL_RSP 2`
84			`#define GDB_PROTOCOL_NONE 3`
85
86			`int err; // Global error value`
87
88			`/* Currently selected scan chain - just to prevent unnecessary transfers. */`
89			`int current_chain = -1;`
90
91			`/* The chain that should be currently selected. */`
92			`int dbg_chain = -1;`
93
94			`int main(int argc, char *argv[]) {`
95
96			`char *s;`
97			`int gdb_protocol = GDB_PROTOCOL_NONE;`
98			`endpoint_target = ENDPOINT_TARGET_NONE;`
99			`int inp_arg = 1;`
100
101			`// Check we were compiled with at least one endpoint enabled`
102			`#ifndef USB_ENDPOINT_ENABLED`
103			`printf("No endpoints enabled.\nRecompile the proxy with at least one endpoint enabled\n");`
104			`exit(0);`
105			`#endif`
106
107			`// init our global error number`
108			`err = DBG_ERR_OK;`
109
110			`// Parse input options`
111			`if (argc < 3)`
112			`{`
113			`print_usage();`
114			`exit(1);`
115			`}`
116
117			`err = DBG_ERR_OK;`
118			`srand(getpid());`
119
120			`// Parse through the input, check what we've been given`
121
122			`while ( argv[inp_arg] != NULL )`
123			`{`
124	46	julius	`if(strcmp(argv[inp_arg], "-r") == 0)`
125	39	julius	`{`
126			`gdb_protocol = GDB_PROTOCOL_RSP;`
127			`endpoint_target = ENDPOINT_TARGET_USB;`
128			`}`
129	376	julius	`else if(strcmp(argv[inp_arg], "-o") == 0)`
130	39	julius	`{`
131			`gdb_protocol = GDB_PROTOCOL_RSP;`
132	376	julius	`endpoint_target = ENDPOINT_TARGET_OTHER;`
133	39	julius	`}`
134			`else`
135			`{`
136			`serverPort = strtol(argv[2],&s,10);`
137			`}`
138
139			`inp_arg++;`
140			`}`
141
142			`if(endpoint_target == ENDPOINT_TARGET_NONE \|\| gdb_protocol == GDB_PROTOCOL_NONE \|\| serverPort > 65535 \|\| *s != '\0')`
143			`{`
144			`print_usage();`
145			`exit(1);`
146			`}`
147
148			`#ifdef CYGWIN_COMPILE`
149			`// Load the FTCJTAG DLL function pointers`
150			`if (getFTDIJTAGFunctions() < 0){`
151			`exit(-1);`
152			`}`
153			`#endif`
154
155			`#ifndef CYGWIN_COMPILE`
156			`// Install a signal handler to exit gracefully`
157			`// when we receive a sigint`
158			`signal(SIGINT, catch_sigint);`
159			`#endif`
160
161			`/* Initialise connection to our OR1k system */`
162			`current_chain = -1;`
163			`#ifdef USB_ENDPOINT_ENABLED`
164			`/* USB Endpoint */`
165			`if (endpoint_target == ENDPOINT_TARGET_USB)`
166			`{`
167			`printf("\nConnecting to OR1k via USB debug cable\n\n");`
168			`if ((err = usb_dbg_reset())) goto JtagIfError;`
169			`dbg_test(); // Perform some tests`
170			`}`
171			`#endif`
172
173			`/* We have a connection to the target system. Now establish server connection. */`
174	46	julius	`if(gdb_protocol == GDB_PROTOCOL_RSP)`
175			`{ // Connect to RSP server`
176			`/* RSP always starts stalled as though we have just reset the processor. */`
177			`// rsp_exception (EXCEPT_TRAP);`
178			`handle_rsp ();`
179	39	julius	`// if((server_fd = GetServerSocket("or1ksim","tcp", serverPort))) {`
180	46	julius	`}else {`
181	39	julius	`fprintf(stderr,"Cannot start RSP Proxy server on port %d\n", serverPort);`
182			`exit(-1);`
183			`}`
184
185
186			`JtagIfError:`
187			`fprintf(stderr,"Connection via USB debug cable failed (err = %d).\nPlease ensure the device is attached and correctly installed\n\n", err);`
188			`exit(-1);`
189			`return 0;`
190			`}`
191
192
193			`int dbg_reset()`
194			`{`
195			`#ifdef USB_ENDPOINT_ENABLED`
196			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_reset();`
197			`#endif`
198			`return DBG_ERR_INVALID_ENDPOINT;`
199			`}`
200
201			`void dbg_test() {`
202			`#ifdef USB_ENDPOINT_ENABLED`
203			`if (endpoint_target == ENDPOINT_TARGET_USB) usb_dbg_test();`
204			`#endif`
205			`}`
206
207			`/* Set TAP instruction register */`
208			`int dbg_set_tap_ir(uint32_t ir) {`
209			`#ifdef USB_ENDPOINT_ENABLED`
210			`if (endpoint_target == ENDPOINT_TARGET_USB) usb_set_tap_ir(ir);`
211			`#endif`
212			`return DBG_ERR_INVALID_ENDPOINT;`
213			`}`
214
215			`/* Sets scan chain. */`
216			`int dbg_set_chain(uint32_t chain) {`
217			`#ifdef USB_ENDPOINT_ENABLED`
218			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_set_chain(chain);`
219			`#endif`
220			`return DBG_ERR_INVALID_ENDPOINT;`
221			`}`
222
223			`/* sends out a command with 32bit address and 16bit length, if len >= 0 */`
224			`int dbg_command(uint32_t type, uint32_t adr, uint32_t len) {`
225			`// This is never called by any of the VPI functions, so only USB endpoint`
226			`#ifdef USB_ENDPOINT_ENABLED`
227			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_command(type,adr,len);`
228			`#endif`
229			`return DBG_ERR_INVALID_ENDPOINT;`
230			`}`
231
232			`/* writes a ctrl reg */`
233			`int dbg_ctrl(uint32_t reset, uint32_t stall) {`
234			`#ifdef USB_ENDPOINT_ENABLED`
235			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl(reset, stall);`
236			`#endif`
237			`return DBG_ERR_INVALID_ENDPOINT;`
238			`}`
239
240			`/* reads control register */`
241			`int dbg_ctrl_read(uint32_t reset, uint32_t stall) {`
242			`#ifdef USB_ENDPOINT_ENABLED`
243			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_ctrl_read(reset, stall);`
244			`#endif`
245			`return DBG_ERR_INVALID_ENDPOINT;`
246			`}`
247
248			`/* issues a burst read/write */`
249			`int dbg_go(unsigned char *data, uint16_t len, uint32_t read) {`
250			`// Only USB endpouint32_t option here`
251			`#ifdef USB_ENDPOINT_ENABLED`
252			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_go(data, len, read);`
253			`#endif`
254			`return DBG_ERR_INVALID_ENDPOINT;`
255			`}`
256
257	94	julius	`/* read a byte from wishbone */`
258			`int dbg_wb_read8(uint32_t adr, uint8_t *data) {`
259			`#ifdef USB_ENDPOINT_ENABLED`
260			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read8(adr, data);`
261			`#endif`
262			`return DBG_ERR_INVALID_ENDPOINT;`
263			`}`
264
265
266	39	julius	`/* read a word from wishbone */`
267			`int dbg_wb_read32(uint32_t adr, uint32_t *data) {`
268			`#ifdef USB_ENDPOINT_ENABLED`
269			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read32(adr, data);`
270			`#endif`
271			`return DBG_ERR_INVALID_ENDPOINT;`
272			`}`
273
274	46	julius	`/* write a word to wishbone */`
275			`int dbg_wb_write8(uint32_t adr, uint8_t data) {`
276			`#ifdef USB_ENDPOINT_ENABLED`
277			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write8( adr, data);`
278			`#endif`
279			`return DBG_ERR_INVALID_ENDPOINT;`
280			`}`
281	39	julius
282			`/* write a word to wishbone */`
283			`int dbg_wb_write32(uint32_t adr, uint32_t data) {`
284			`#ifdef USB_ENDPOINT_ENABLED`
285			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write32( adr, data);`
286			`#endif`
287			`return DBG_ERR_INVALID_ENDPOINT;`
288			`}`
289
290			`/* read a block from wishbone */`
291			`int dbg_wb_read_block32(uint32_t adr, uint32_t *data, uint32_t len) {`
292			`#ifdef USB_ENDPOINT_ENABLED`
293			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_read_block32( adr, data, len);`
294			`#endif`
295			`return DBG_ERR_INVALID_ENDPOINT;`
296			`}`
297
298			`/* write a block to wishbone */`
299			`int dbg_wb_write_block32(uint32_t adr, uint32_t *data, uint32_t len) {`
300			`#ifdef USB_ENDPOINT_ENABLED`
301			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_wb_write_block32( adr, data, len);`
302			`#endif`
303			`return DBG_ERR_INVALID_ENDPOINT;`
304			`}`
305
306			`/* read a register from cpu */`
307	47	julius	`int dbg_cpu0_read(uint32_t adr, uint32_t *data, uint32_t length) {`
308	39	julius	`#ifdef USB_ENDPOINT_ENABLED`
309	47	julius	`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read( adr, data, length);`
310	39	julius	`#endif`
311			`return DBG_ERR_INVALID_ENDPOINT;`
312			`}`
313
314			`/* write a cpu register */`
315	47	julius	`int dbg_cpu0_write(uint32_t adr, uint32_t *data, uint32_t length) {`
316	39	julius	`#ifdef USB_ENDPOINT_ENABLED`
317	47	julius	`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write( adr, data, length);`
318	39	julius	`#endif`
319			`return DBG_ERR_INVALID_ENDPOINT;`
320			`}`
321
322			`/* write a cpu module register */`
323			`int dbg_cpu0_write_ctrl(uint32_t adr, unsigned char data) {`
324			`#ifdef USB_ENDPOINT_ENABLED`
325			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_write_ctrl( adr, data);`
326			`#endif`
327			`return DBG_ERR_INVALID_ENDPOINT;`
328			`}`
329
330
331			`/* read a register from cpu module */`
332			`int dbg_cpu0_read_ctrl(uint32_t adr, unsigned char *data) {`
333			`#ifdef USB_ENDPOINT_ENABLED`
334			`if (endpoint_target == ENDPOINT_TARGET_USB) return usb_dbg_cpu0_read_ctrl( adr, data);`
335			`#endif`
336			`return DBG_ERR_INVALID_ENDPOINT;`
337			`}`
338
339
340			`void test_sdram(void) {`
341			`return;`
342			`}`
343
344			`// Close down gracefully when we receive any kill signals`
345			`void catch_sigint(int sig_num)`
346			`{`
347			`// Close down any potentially open sockets and USB handles`
348			`if (server_fd) close(server_fd);`
349			`gdb_close();`
350			`#ifdef USB_ENDPOINT_ENABLED`
351			`usb_close_device_handle();`
352			`#endif`
353			`printf("\nInterrupt signal received. Closing down connections and exiting\n\n");`
354			`exit(0);`
355			`}`
356
357			`void print_usage()`
358			`{`
359			`printf("Invalid or insufficient arguments\n");`
360			`printf("\n");`
361			`printf("OpenRISC GDB proxy server usage: or_debug_proxy -server_type port\n");`
362			`printf("\n");`
363			`printf("server_type:\n");`
364			`#ifdef USB_ENDPOINT_ENABLED`
365			`printf("\t-r Start a server using RSP, connection to hadware target via\n\t USB\n");`
366			`printf("\t-j Start a server using legacy OR remote JTAG protocol, to\n\t hardware target via USB\n");`
367			`#endif`
368			`printf("\n");`
369			`printf("port:\n");`
370			`printf("\tAny free port within the usable range of 0 - 65535\n");`
371			`printf("\n");`
372			`printf("Example:\n");`
373			`#ifdef USB_ENDPOINT_ENABLED`
374			`printf("\tStart a GDB server on port 5555, using RSP, connecting to\n\thardware target via USB\n");`
375			`printf("\tor_debug_proxy -r 5555\n");`
376			`printf("\n");`
377			`#endif`
378			`fflush (stdout);`
379			`}`