1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
24 #include "replacements.h"
30 /* -ino: 060521-1036 */
31 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
33 #include <sys/types.h>
34 #include <machine/sysarch.h>
35 #include <machine/cpufunc.h>
36 #define ioperm(startport,length,enable)\
37 i386_set_ioperm((startport), (length), (enable))
45 #endif /* __FreeBSD__ */
51 #if PARPORT_USE_PPDEV == 1
52 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
53 #include <dev/ppbus/ppi.h>
54 #include <dev/ppbus/ppbconf.h>
55 #define PPRSTATUS PPIGSTATUS
56 #define PPWDATA PPISDATA
58 #include <linux/parport.h>
59 #include <linux/ppdev.h>
62 #include <sys/ioctl.h>
63 #else /* not PARPORT_USE_PPDEV */
69 #if PARPORT_USE_GIVEIO == 1
78 /* parallel port cable description
80 typedef struct cable_s
83 u8 TDO_MASK; /* status port bit containing current TDO value */
84 u8 TRST_MASK; /* data port bit for TRST */
85 u8 TMS_MASK; /* data port bit for TMS */
86 u8 TCK_MASK; /* data port bit for TCK */
87 u8 TDI_MASK; /* data port bit for TDI */
88 u8 SRST_MASK; /* data port bit for SRST */
89 u8 OUTPUT_INVERT; /* data port bits that should be inverted */
90 u8 INPUT_INVERT; /* status port that should be inverted */
91 u8 PORT_INIT; /* initialize data port with this value */
92 u8 PORT_EXIT; /* de-initialize data port with this value */
93 u8 LED_MASK; /* data port bit for LED */
98 /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
99 { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
100 { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
101 { "wiggler_ntrst_inverted",
102 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 },
103 { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 },
104 { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
105 { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 },
106 { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
107 { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 },
108 { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 },
109 /* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows:
110 HARD TCK - Target TCK
111 HARD TMS - Target TMS
112 HARD TDI - Target TDI
113 HARD TDO - Target TDO
114 SOFT TCK - Target TRST
115 SOFT TDI - Target SRST
117 { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 },
118 { NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
122 char* parport_cable = NULL;
124 static int parport_exit = 0;
126 /* interface variables
128 static cable_t* cable;
129 static u8 dataport_value = 0x0;
131 #if PARPORT_USE_PPDEV == 1
132 static int device_handle;
134 static unsigned long dataport;
135 static unsigned long statusport;
138 /* low level command set
140 int parport_read(void);
141 void parport_write(int tck, int tms, int tdi);
142 void parport_reset(int trst, int srst);
143 void parport_led(int on);
145 int parport_speed(int speed);
146 int parport_register_commands(struct command_context_s *cmd_ctx);
147 int parport_init(void);
148 int parport_quit(void);
150 /* interface commands */
151 int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
152 int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
153 int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
155 jtag_interface_t parport_interface =
159 .execute_queue = bitbang_execute_queue,
161 .speed = parport_speed,
162 .register_commands = parport_register_commands,
163 .init = parport_init,
164 .quit = parport_quit,
167 bitbang_interface_t parport_bitbang =
169 .read = parport_read,
170 .write = parport_write,
171 .reset = parport_reset,
175 int parport_read(void)
179 #if PARPORT_USE_PPDEV == 1
180 ioctl(device_handle, PPRSTATUS, & data);
182 data = inb(statusport);
185 if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK)
191 static __inline__ void parport_write_data(void)
194 output = dataport_value ^ cable->OUTPUT_INVERT;
196 #if PARPORT_USE_PPDEV == 1
197 ioctl(device_handle, PPWDATA, &output);
199 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
200 outb(dataport, output);
202 outb(output, dataport);
207 void parport_write(int tck, int tms, int tdi)
209 int i = jtag_speed + 1;
212 dataport_value |= cable->TCK_MASK;
214 dataport_value &= ~cable->TCK_MASK;
217 dataport_value |= cable->TMS_MASK;
219 dataport_value &= ~cable->TMS_MASK;
222 dataport_value |= cable->TDI_MASK;
224 dataport_value &= ~cable->TDI_MASK;
227 parport_write_data();
230 /* (1) assert or (0) deassert reset lines */
231 void parport_reset(int trst, int srst)
233 LOG_DEBUG("trst: %i, srst: %i", trst, srst);
236 dataport_value |= cable->TRST_MASK;
238 dataport_value &= ~cable->TRST_MASK;
241 dataport_value |= cable->SRST_MASK;
243 dataport_value &= ~cable->SRST_MASK;
245 parport_write_data();
248 /* turn LED on parport adapter on (1) or off (0) */
249 void parport_led(int on)
252 dataport_value |= cable->LED_MASK;
254 dataport_value &= ~cable->LED_MASK;
256 parport_write_data();
259 int parport_speed(int speed)
264 int parport_register_commands(struct command_context_s *cmd_ctx)
266 register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
267 COMMAND_CONFIG, NULL);
268 register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
269 COMMAND_CONFIG, NULL);
270 register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
271 COMMAND_CONFIG, NULL);
276 #if PARPORT_USE_GIVEIO == 1
277 int parport_get_giveio_access()
280 OSVERSIONINFO version;
282 version.dwOSVersionInfoSize = sizeof version;
283 if (!GetVersionEx( &version )) {
287 if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)
290 h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
291 if (h == INVALID_HANDLE_VALUE) {
302 int parport_init(void)
305 #if PARPORT_USE_PPDEV == 1
312 if ((parport_cable == NULL) || (parport_cable[0] == 0))
314 parport_cable = "wiggler";
315 LOG_WARNING("No parport cable specified, using default 'wiggler'");
318 while (cur_cable->name)
320 if (strcmp(cur_cable->name, parport_cable) == 0)
330 LOG_ERROR("No matching cable found for %s", parport_cable);
331 return ERROR_JTAG_INIT_FAILED;
334 dataport_value = cable->PORT_INIT;
336 #if PARPORT_USE_PPDEV == 1
337 if (device_handle > 0)
339 LOG_ERROR("device is already opened");
340 return ERROR_JTAG_INIT_FAILED;
343 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
344 LOG_DEBUG("opening /dev/ppi%d...", parport_port);
346 snprintf(buffer, 256, "/dev/ppi%d", parport_port);
347 device_handle = open(buffer, O_WRONLY);
348 #else /* not __FreeBSD__, __FreeBSD_kernel__ */
349 LOG_DEBUG("opening /dev/parport%d...", parport_port);
351 snprintf(buffer, 256, "/dev/parport%d", parport_port);
352 device_handle = open(buffer, O_WRONLY);
353 #endif /* __FreeBSD__, __FreeBSD_kernel__ */
355 if (device_handle < 0)
357 LOG_ERROR("cannot open device. check it exists and that user read and write rights are set");
358 return ERROR_JTAG_INIT_FAILED;
361 LOG_DEBUG("...open");
363 #if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
364 i=ioctl(device_handle, PPCLAIM);
367 LOG_ERROR("cannot claim device");
368 return ERROR_JTAG_INIT_FAILED;
371 i = PARPORT_MODE_COMPAT;
372 i= ioctl(device_handle, PPSETMODE, & i);
375 LOG_ERROR(" cannot set compatible mode to device");
376 return ERROR_JTAG_INIT_FAILED;
379 i = IEEE1284_MODE_COMPAT;
380 i = ioctl(device_handle, PPNEGOT, & i);
383 LOG_ERROR("cannot set compatible 1284 mode to device");
384 return ERROR_JTAG_INIT_FAILED;
386 #endif /* not __FreeBSD__, __FreeBSD_kernel__ */
388 #else /* not PARPORT_USE_PPDEV */
389 if (parport_port == 0)
391 parport_port = 0x378;
392 LOG_WARNING("No parport port specified, using default '0x378' (LPT1)");
395 dataport = parport_port;
396 statusport = parport_port + 1;
398 LOG_DEBUG("requesting privileges for parallel port 0x%lx...", dataport);
399 #if PARPORT_USE_GIVEIO == 1
400 if (parport_get_giveio_access() != 0)
401 #else /* PARPORT_USE_GIVEIO */
402 if (ioperm(dataport, 3, 1) != 0)
403 #endif /* PARPORT_USE_GIVEIO */
405 LOG_ERROR("missing privileges for direct i/o");
406 return ERROR_JTAG_INIT_FAILED;
408 LOG_DEBUG("...privileges granted");
410 /* make sure parallel port is in right mode (clear tristate and interrupt */
411 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
412 outb(parport_port + 2, 0x0);
414 outb(0x0, parport_port + 2);
417 #endif /* PARPORT_USE_PPDEV */
420 parport_write(0, 0, 0);
423 bitbang_interface = &parport_bitbang;
428 int parport_quit(void)
434 dataport_value = cable->PORT_EXIT;
435 parport_write_data();
441 parport_cable = NULL;
447 int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
452 /* only if the port wasn't overwritten by cmdline */
453 if (parport_port == 0)
454 parport_port = strtoul(args[0], NULL, 0);
459 int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
464 /* only if the cable name wasn't overwritten by cmdline */
465 if (parport_cable == 0)
467 parport_cable = malloc(strlen(args[0]) + sizeof(char));
468 strcpy(parport_cable, args[0]);
474 int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
478 command_print(cmd_ctx, "usage: parport_write_on_exit <on|off>");
482 if (strcmp(args[0], "on") == 0)
484 else if (strcmp(args[0], "off") == 0)