1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
27 #include "replacements.h"
33 /* -ino: 060521-1036 */
34 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
36 #include <machine/sysarch.h>
37 #include <machine/cpufunc.h>
38 #define ioperm(startport,length,enable)\
39 i386_set_ioperm((startport), (length), (enable))
47 #endif /* __FreeBSD__ */
53 #if PARPORT_USE_PPDEV == 1
54 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
55 #include <dev/ppbus/ppi.h>
56 #include <dev/ppbus/ppbconf.h>
57 #define PPRSTATUS PPIGSTATUS
58 #define PPWDATA PPISDATA
60 #include <linux/parport.h>
61 #include <linux/ppdev.h>
64 #include <sys/ioctl.h>
65 #else /* not PARPORT_USE_PPDEV */
71 #if PARPORT_USE_GIVEIO == 1
80 /* parallel port cable description
82 typedef struct cable_s
85 u8 TDO_MASK
; /* status port bit containing current TDO value */
86 u8 TRST_MASK
; /* data port bit for TRST */
87 u8 TMS_MASK
; /* data port bit for TMS */
88 u8 TCK_MASK
; /* data port bit for TCK */
89 u8 TDI_MASK
; /* data port bit for TDI */
90 u8 SRST_MASK
; /* data port bit for SRST */
91 u8 OUTPUT_INVERT
; /* data port bits that should be inverted */
92 u8 INPUT_INVERT
; /* status port that should be inverted */
93 u8 PORT_INIT
; /* initialize data port with this value */
94 u8 PORT_EXIT
; /* de-initialize data port with this value */
95 u8 LED_MASK
; /* data port bit for LED */
98 static cable_t cables
[] =
100 /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
101 { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
102 { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
103 { "wiggler_ntrst_inverted",
104 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 },
105 { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 },
106 { "arm-jtag", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x01, 0x80, 0x80, 0x80, 0x00 },
107 { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
108 { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 },
109 { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
110 { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 },
111 { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 },
112 /* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows:
113 HARD TCK - Target TCK
114 HARD TMS - Target TMS
115 HARD TDI - Target TDI
116 HARD TDO - Target TDO
117 SOFT TCK - Target TRST
118 SOFT TDI - Target SRST
120 { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 },
121 { NULL
, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
125 static char* parport_cable
= NULL
;
126 static u16 parport_port
;
127 static int parport_exit
= 0;
129 /* interface variables
131 static cable_t
* cable
;
132 static u8 dataport_value
= 0x0;
134 #if PARPORT_USE_PPDEV == 1
135 static int device_handle
;
137 static unsigned long dataport
;
138 static unsigned long statusport
;
141 /* low level command set
143 static int parport_read(void);
144 static void parport_write(int tck
, int tms
, int tdi
);
145 static void parport_reset(int trst
, int srst
);
146 static void parport_led(int on
);
148 static int parport_speed(int speed
);
149 static int parport_register_commands(struct command_context_s
*cmd_ctx
);
150 static int parport_init(void);
151 static int parport_quit(void);
153 /* interface commands */
154 static int parport_handle_parport_port_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
155 static int parport_handle_parport_cable_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
156 static int parport_handle_write_on_exit_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
158 jtag_interface_t parport_interface
=
162 .execute_queue
= bitbang_execute_queue
,
164 .speed
= parport_speed
,
165 .register_commands
= parport_register_commands
,
166 .init
= parport_init
,
167 .quit
= parport_quit
,
170 static bitbang_interface_t parport_bitbang
=
172 .read
= parport_read
,
173 .write
= parport_write
,
174 .reset
= parport_reset
,
178 static int parport_read(void)
182 #if PARPORT_USE_PPDEV == 1
183 ioctl(device_handle
, PPRSTATUS
, & data
);
185 data
= inb(statusport
);
188 if ((data
^ cable
->INPUT_INVERT
) & cable
->TDO_MASK
)
194 static __inline__
void parport_write_data(void)
197 output
= dataport_value
^ cable
->OUTPUT_INVERT
;
199 #if PARPORT_USE_PPDEV == 1
200 ioctl(device_handle
, PPWDATA
, &output
);
202 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
203 outb(dataport
, output
);
205 outb(output
, dataport
);
210 static void parport_write(int tck
, int tms
, int tdi
)
212 int i
= jtag_speed
+ 1;
215 dataport_value
|= cable
->TCK_MASK
;
217 dataport_value
&= ~cable
->TCK_MASK
;
220 dataport_value
|= cable
->TMS_MASK
;
222 dataport_value
&= ~cable
->TMS_MASK
;
225 dataport_value
|= cable
->TDI_MASK
;
227 dataport_value
&= ~cable
->TDI_MASK
;
230 parport_write_data();
233 /* (1) assert or (0) deassert reset lines */
234 static void parport_reset(int trst
, int srst
)
236 LOG_DEBUG("trst: %i, srst: %i", trst
, srst
);
239 dataport_value
|= cable
->TRST_MASK
;
241 dataport_value
&= ~cable
->TRST_MASK
;
244 dataport_value
|= cable
->SRST_MASK
;
246 dataport_value
&= ~cable
->SRST_MASK
;
248 parport_write_data();
251 /* turn LED on parport adapter on (1) or off (0) */
252 static void parport_led(int on
)
255 dataport_value
|= cable
->LED_MASK
;
257 dataport_value
&= ~cable
->LED_MASK
;
259 parport_write_data();
262 static int parport_speed(int speed
)
267 static int parport_register_commands(struct command_context_s
*cmd_ctx
)
269 register_command(cmd_ctx
, NULL
, "parport_port", parport_handle_parport_port_command
,
270 COMMAND_CONFIG
, "either the address of the I/O port or the number of the \91/dev/parport\92 device");
271 register_command(cmd_ctx
, NULL
, "parport_cable", parport_handle_parport_cable_command
,
272 COMMAND_CONFIG
, "the layout of the parallel port cable used to connect to the target");
273 register_command(cmd_ctx
, NULL
, "parport_write_on_exit", parport_handle_write_on_exit_command
,
274 COMMAND_CONFIG
, "configure the parallel driver to write a known value to the parallel interface");
279 #if PARPORT_USE_GIVEIO == 1
280 static int parport_get_giveio_access(void)
283 OSVERSIONINFO version
;
285 version
.dwOSVersionInfoSize
= sizeof version
;
286 if (!GetVersionEx( &version
)) {
290 if (version
.dwPlatformId
!= VER_PLATFORM_WIN32_NT
)
293 h
= CreateFile( "\\\\.\\giveio", GENERIC_READ
, 0, NULL
, OPEN_EXISTING
, FILE_ATTRIBUTE_NORMAL
, NULL
);
294 if (h
== INVALID_HANDLE_VALUE
) {
305 static int parport_init(void)
308 #if PARPORT_USE_PPDEV == 1
315 if ((parport_cable
== NULL
) || (parport_cable
[0] == 0))
317 parport_cable
= "wiggler";
318 LOG_WARNING("No parport cable specified, using default 'wiggler'");
321 while (cur_cable
->name
)
323 if (strcmp(cur_cable
->name
, parport_cable
) == 0)
333 LOG_ERROR("No matching cable found for %s", parport_cable
);
334 return ERROR_JTAG_INIT_FAILED
;
337 dataport_value
= cable
->PORT_INIT
;
339 #if PARPORT_USE_PPDEV == 1
340 if (device_handle
> 0)
342 LOG_ERROR("device is already opened");
343 return ERROR_JTAG_INIT_FAILED
;
346 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
347 LOG_DEBUG("opening /dev/ppi%d...", parport_port
);
349 snprintf(buffer
, 256, "/dev/ppi%d", parport_port
);
350 device_handle
= open(buffer
, O_WRONLY
);
351 #else /* not __FreeBSD__, __FreeBSD_kernel__ */
352 LOG_DEBUG("opening /dev/parport%d...", parport_port
);
354 snprintf(buffer
, 256, "/dev/parport%d", parport_port
);
355 device_handle
= open(buffer
, O_WRONLY
);
356 #endif /* __FreeBSD__, __FreeBSD_kernel__ */
358 if (device_handle
< 0)
360 LOG_ERROR("cannot open device. check it exists and that user read and write rights are set");
361 return ERROR_JTAG_INIT_FAILED
;
364 LOG_DEBUG("...open");
366 #if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
367 i
=ioctl(device_handle
, PPCLAIM
);
370 LOG_ERROR("cannot claim device");
371 return ERROR_JTAG_INIT_FAILED
;
374 i
= PARPORT_MODE_COMPAT
;
375 i
= ioctl(device_handle
, PPSETMODE
, & i
);
378 LOG_ERROR(" cannot set compatible mode to device");
379 return ERROR_JTAG_INIT_FAILED
;
382 i
= IEEE1284_MODE_COMPAT
;
383 i
= ioctl(device_handle
, PPNEGOT
, & i
);
386 LOG_ERROR("cannot set compatible 1284 mode to device");
387 return ERROR_JTAG_INIT_FAILED
;
389 #endif /* not __FreeBSD__, __FreeBSD_kernel__ */
391 #else /* not PARPORT_USE_PPDEV */
392 if (parport_port
== 0)
394 parport_port
= 0x378;
395 LOG_WARNING("No parport port specified, using default '0x378' (LPT1)");
398 dataport
= parport_port
;
399 statusport
= parport_port
+ 1;
401 LOG_DEBUG("requesting privileges for parallel port 0x%lx...", dataport
);
402 #if PARPORT_USE_GIVEIO == 1
403 if (parport_get_giveio_access() != 0)
404 #else /* PARPORT_USE_GIVEIO */
405 if (ioperm(dataport
, 3, 1) != 0)
406 #endif /* PARPORT_USE_GIVEIO */
408 LOG_ERROR("missing privileges for direct i/o");
409 return ERROR_JTAG_INIT_FAILED
;
411 LOG_DEBUG("...privileges granted");
413 /* make sure parallel port is in right mode (clear tristate and interrupt */
414 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
415 outb(parport_port
+ 2, 0x0);
417 outb(0x0, parport_port
+ 2);
420 #endif /* PARPORT_USE_PPDEV */
423 parport_write(0, 0, 0);
426 bitbang_interface
= &parport_bitbang
;
431 static int parport_quit(void)
437 dataport_value
= cable
->PORT_EXIT
;
438 parport_write_data();
444 parport_cable
= NULL
;
450 static int parport_handle_parport_port_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
455 /* only if the port wasn't overwritten by cmdline */
456 if (parport_port
== 0)
457 parport_port
= strtoul(args
[0], NULL
, 0);
462 static int parport_handle_parport_cable_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
467 /* only if the cable name wasn't overwritten by cmdline */
468 if (parport_cable
== 0)
470 parport_cable
= malloc(strlen(args
[0]) + sizeof(char));
471 strcpy(parport_cable
, args
[0]);
477 static int parport_handle_write_on_exit_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
481 command_print(cmd_ctx
, "usage: parport_write_on_exit <on|off>");
485 if (strcmp(args
[0], "on") == 0)
487 else if (strcmp(args
[0], "off") == 0)
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