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"
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
79 /* parallel port cable description
81 typedef struct cable_s
84 u8 TDO_MASK
; /* status port bit containing current TDO value */
85 u8 TRST_MASK
; /* data port bit for TRST */
86 u8 TMS_MASK
; /* data port bit for TMS */
87 u8 TCK_MASK
; /* data port bit for TCK */
88 u8 TDI_MASK
; /* data port bit for TDI */
89 u8 SRST_MASK
; /* data port bit for SRST */
90 u8 OUTPUT_INVERT
; /* data port bits that should be inverted */
91 u8 INPUT_INVERT
; /* status port that should be inverted */
92 u8 PORT_INIT
; /* initialize data port with this value */
93 u8 PORT_EXIT
; /* de-initialize data port with this value */
94 u8 LED_MASK
; /* data port bit for LED */
99 /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
100 { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
101 { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
102 { "wiggler_ntrst_inverted",
103 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 },
104 { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 },
105 { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
106 { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 },
107 { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
108 { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 },
109 { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 },
110 /* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows:
111 HARD TCK - Target TCK
112 HARD TMS - Target TMS
113 HARD TDI - Target TDI
114 HARD TDO - Target TDO
115 SOFT TCK - Target TRST
116 SOFT TDI - Target SRST
118 { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 },
119 { NULL
, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
124 unsigned long parport_port
;
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
);
154 jtag_interface_t parport_interface
=
158 .execute_queue
= bitbang_execute_queue
,
160 .support_pathmove
= 1,
162 .speed
= parport_speed
,
163 .register_commands
= parport_register_commands
,
164 .init
= parport_init
,
165 .quit
= parport_quit
,
168 bitbang_interface_t parport_bitbang
=
170 .read
= parport_read
,
171 .write
= parport_write
,
172 .reset
= parport_reset
,
176 int parport_read(void)
180 #if PARPORT_USE_PPDEV == 1
181 ioctl(device_handle
, PPRSTATUS
, & data
);
183 data
= inb(statusport
);
186 if ((data
^ cable
->INPUT_INVERT
) & cable
->TDO_MASK
)
192 static inline void parport_write_data(void)
195 output
= dataport_value
^ cable
->OUTPUT_INVERT
;
197 #if PARPORT_USE_PPDEV == 1
198 ioctl(device_handle
, PPWDATA
, &output
);
200 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
201 outb(dataport
, output
);
203 outb(output
, dataport
);
208 void parport_write(int tck
, int tms
, int tdi
)
210 int i
= jtag_speed
+ 1;
213 dataport_value
|= cable
->TCK_MASK
;
215 dataport_value
&= ~cable
->TCK_MASK
;
218 dataport_value
|= cable
->TMS_MASK
;
220 dataport_value
&= ~cable
->TMS_MASK
;
223 dataport_value
|= cable
->TDI_MASK
;
225 dataport_value
&= ~cable
->TDI_MASK
;
228 parport_write_data();
231 /* (1) assert or (0) deassert reset lines */
232 void parport_reset(int trst
, int srst
)
234 DEBUG("trst: %i, srst: %i", trst
, srst
);
237 dataport_value
|= cable
->TRST_MASK
;
239 dataport_value
&= ~cable
->TRST_MASK
;
242 dataport_value
|= cable
->SRST_MASK
;
244 dataport_value
&= ~cable
->SRST_MASK
;
246 parport_write_data();
249 /* turn LED on parport adapter on (1) or off (0) */
250 void parport_led(int on
)
254 dataport_value
|= cable
->LED_MASK
;
256 dataport_value
&= ~cable
->LED_MASK
;
258 parport_write_data();
261 int parport_speed(int speed
)
268 int parport_register_commands(struct command_context_s
*cmd_ctx
)
270 register_command(cmd_ctx
, NULL
, "parport_port", parport_handle_parport_port_command
,
271 COMMAND_CONFIG
, NULL
);
272 register_command(cmd_ctx
, NULL
, "parport_cable", parport_handle_parport_cable_command
,
273 COMMAND_CONFIG
, NULL
);
278 #if PARPORT_USE_GIVEIO == 1
279 int parport_get_giveio_access()
282 OSVERSIONINFO version
;
284 version
.dwOSVersionInfoSize
= sizeof version
;
285 if (!GetVersionEx( &version
)) {
289 if (version
.dwPlatformId
!= VER_PLATFORM_WIN32_NT
)
292 h
= CreateFile( "\\\\.\\giveio", GENERIC_READ
, 0, NULL
, OPEN_EXISTING
, FILE_ATTRIBUTE_NORMAL
, NULL
);
293 if (h
== INVALID_HANDLE_VALUE
) {
304 int parport_init(void)
307 #if PARPORT_USE_PPDEV == 1
314 if ((parport_cable
== NULL
) || (parport_cable
[0] == 0))
316 parport_cable
= "wiggler";
317 WARNING("No parport cable specified, using default 'wiggler'");
320 while (cur_cable
->name
)
322 if (strcmp(cur_cable
->name
, parport_cable
) == 0)
332 ERROR("No matching cable found for %s", parport_cable
);
333 return ERROR_JTAG_INIT_FAILED
;
336 dataport_value
= cable
->PORT_INIT
;
338 #if PARPORT_USE_PPDEV == 1
339 if (device_handle
> 0)
341 ERROR("device is already opened");
342 return ERROR_JTAG_INIT_FAILED
;
345 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
346 DEBUG("opening /dev/ppi%d...", parport_port
);
348 snprintf(buffer
, 256, "/dev/ppi%d", parport_port
);
349 device_handle
= open(buffer
, O_WRONLY
);
350 #else /* not __FreeBSD__, __FreeBSD_kernel__ */
351 DEBUG("opening /dev/parport%d...", parport_port
);
353 snprintf(buffer
, 256, "/dev/parport%d", parport_port
);
354 device_handle
= open(buffer
, O_WRONLY
);
355 #endif /* __FreeBSD__, __FreeBSD_kernel__ */
357 if (device_handle
< 0)
359 ERROR("cannot open device. check it exists and that user read and write rights are set");
360 return ERROR_JTAG_INIT_FAILED
;
365 #if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
366 i
=ioctl(device_handle
, PPCLAIM
);
369 ERROR("cannot claim device");
370 return ERROR_JTAG_INIT_FAILED
;
373 i
= PARPORT_MODE_COMPAT
;
374 i
= ioctl(device_handle
, PPSETMODE
, & i
);
377 ERROR(" cannot set compatible mode to device");
378 return ERROR_JTAG_INIT_FAILED
;
381 i
= IEEE1284_MODE_COMPAT
;
382 i
= ioctl(device_handle
, PPNEGOT
, & i
);
385 ERROR("cannot set compatible 1284 mode to device");
386 return ERROR_JTAG_INIT_FAILED
;
388 #endif /* not __FreeBSD__, __FreeBSD_kernel__ */
390 #else /* not PARPORT_USE_PPDEV */
391 if (parport_port
== 0)
393 parport_port
= 0x378;
394 WARNING("No parport port specified, using default '0x378' (LPT1)");
397 dataport
= parport_port
;
398 statusport
= parport_port
+ 1;
400 DEBUG("requesting privileges for parallel port 0x%lx...", dataport
);
401 #if PARPORT_USE_GIVEIO == 1
402 if (parport_get_giveio_access() != 0)
403 #else /* PARPORT_USE_GIVEIO */
404 if (ioperm(dataport
, 3, 1) != 0)
405 #endif /* PARPORT_USE_GIVEIO */
407 ERROR("missing privileges for direct i/o");
408 return ERROR_JTAG_INIT_FAILED
;
410 DEBUG("...privileges granted");
412 /* make sure parallel port is in right mode (clear tristate and interrupt */
413 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
414 outb(parport_port
+ 2, 0x0);
416 outb(0x0, parport_port
+ 2);
419 #endif /* PARPORT_USE_PPDEV */
422 parport_write(0, 0, 0);
425 bitbang_interface
= &parport_bitbang
;
430 int parport_quit(void)
435 dataport_value
= cable
->PORT_EXIT
;
436 parport_write_data();
440 int parport_handle_parport_port_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
445 /* only if the port wasn't overwritten by cmdline */
446 if (parport_port
== 0)
447 parport_port
= strtoul(args
[0], NULL
, 0);
452 int parport_handle_parport_cable_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
457 /* only if the cable name wasn't overwritten by cmdline */
458 if (parport_cable
== 0)
460 parport_cable
= malloc(strlen(args
[0]) + sizeof(char));
461 strcpy(parport_cable
, args
[0]);
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