1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
|
/* plugctl.c
* A program to get or set any MPR or PCR register value.
* Copyright 2002-2004 Dan Dennedy
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* standard system includes */
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <errno.h>
/* linux1394 includes */
#include <libraw1394/raw1394.h>
#include "../src/iec61883.h"
/************ DECLARE PRIVATE INTERFACE BITS OF LIBIEC61883!! **************/
/* standard CSR offsets for plugs */
#define CSR_O_MPR 0x900
#define CSR_O_PCR_0 0x904
#define CSR_O_PCR_1 0x908
#define CSR_O_PCR_2 0x90C
#define CSR_O_PCR_3 0x910
#define CSR_I_MPR 0x980
#define CSR_I_PCR_0 0x984
#define CSR_I_PCR_1 0x988
#define CSR_I_PCR_2 0x98C
#define CSR_I_PCR_3 0x990
#if ( __BYTE_ORDER == __BIG_ENDIAN )
struct iec61883_oMPR {
unsigned int data_rate:2;
unsigned int bcast_channel:6;
unsigned int non_persist_ext:8;
unsigned int persist_ext:8;
unsigned int reserved:3;
unsigned int n_plugs:5;
};
struct iec61883_iMPR {
unsigned int data_rate:2;
unsigned int reserved:6;
unsigned int non_persist_ext:8;
unsigned int persist_ext:8;
unsigned int reserved2:3;
unsigned int n_plugs:5;
};
struct iec61883_oPCR {
unsigned int online:1;
unsigned int bcast_connection:1;
unsigned int n_p2p_connections:6;
unsigned int reserved:2;
unsigned int channel:6;
unsigned int data_rate:2;
unsigned int overhead_id:4;
unsigned int payload:10;
};
struct iec61883_iPCR {
unsigned int online:1;
unsigned int bcast_connection:1;
unsigned int n_p2p_connections:6;
unsigned int reserved:2;
unsigned int channel:6;
unsigned int reserved2:16;
};
#else
struct iec61883_oMPR {
unsigned int n_plugs:5;
unsigned int reserved:3;
unsigned int persist_ext:8;
unsigned int non_persist_ext:8;
unsigned int bcast_channel:6;
unsigned int data_rate:2;
};
struct iec61883_iMPR {
unsigned int n_plugs:5;
unsigned int reserved2:3;
unsigned int persist_ext:8;
unsigned int non_persist_ext:8;
unsigned int reserved:6;
unsigned int data_rate:2;
};
struct iec61883_oPCR {
unsigned int payload:10;
unsigned int overhead_id:4;
unsigned int data_rate:2;
unsigned int channel:6;
unsigned int reserved:2;
unsigned int n_p2p_connections:6;
unsigned int bcast_connection:1;
unsigned int online:1;
};
struct iec61883_iPCR {
unsigned int reserved2:16;
unsigned int channel:6;
unsigned int reserved:2;
unsigned int n_p2p_connections:6;
unsigned int bcast_connection:1;
unsigned int online:1;
};
#endif
/**
* iec61883_plug_get - Read a node's plug register.
* @h: A raw1394 handle.
* @n: The node id of the node to read
* @a: The CSR offset address (relative to base) of the register to read.
* @value: A pointer to a quadlet where the plug register's value will be stored.
*
* This function handles bus to host endian conversion. It returns 0 for
* suceess or -1 for error (errno available).
**/
extern int
iec61883_plug_get(raw1394handle_t h, nodeid_t n, nodeaddr_t a, quadlet_t *value);
/**
* iec61883_plug_set - Write a node's plug register.
* @h: A raw1394 handle.
* @n: The node id of the node to read
* @a: The CSR offset address (relative to CSR base) of the register to write.
* @value: A quadlet containing the new register value.
*
* This uses a compare/swap lock operation to safely write the
* new register value, as required by IEC 61883-1.
* This function handles host to bus endian conversion. It returns 0 for success
* or -1 for error (errno available).
**/
extern int
iec61883_plug_set(raw1394handle_t h, nodeid_t n, nodeaddr_t a, quadlet_t value);
/**
* High level plug access macros
*/
#define iec61883_get_oMPR(h,n,v) iec61883_plug_get((h), (n), CSR_O_MPR, (quadlet_t *)(v))
#define iec61883_set_oMPR(h,n,v) iec61883_plug_set((h), (n), CSR_O_MPR, *((quadlet_t *)&(v)))
#define iec61883_get_oPCR0(h,n,v) iec61883_plug_get((h), (n), CSR_O_PCR_0, (quadlet_t *)(v))
#define iec61883_set_oPCR0(h,n,v) iec61883_plug_set((h), (n), CSR_O_PCR_0, *((quadlet_t *)&(v)))
#define iec61883_get_oPCRX(h,n,v,x) iec61883_plug_get((h), (n), CSR_O_PCR_0+(4*(x)), (quadlet_t *)(v))
#define iec61883_set_oPCRX(h,n,v,x) iec61883_plug_set((h), (n), CSR_O_PCR_0+(4*(x)), *((quadlet_t *)&(v)))
#define iec61883_get_iMPR(h,n,v) iec61883_plug_get((h), (n), CSR_I_MPR, (quadlet_t *)(v))
#define iec61883_set_iMPR(h,n,v) iec61883_plug_set((h), (n), CSR_I_MPR, *((quadlet_t *)&(v)))
#define iec61883_get_iPCR0(h,n,v) iec61883_plug_get((h), (n), CSR_I_PCR_0, (quadlet_t *)(v))
#define iec61883_set_iPCR0(h,n,v) iec61883_plug_set((h), (n), CSR_I_PCR_0, *((quadlet_t *)&(v)))
#define iec61883_get_iPCRX(h,n,v,x) iec61883_plug_get((h), (n), CSR_I_PCR_0+(4*(x)), (quadlet_t *)(v))
#define iec61883_set_iPCRX(h,n,v,x) iec61883_plug_set((h), (n), CSR_I_PCR_0+(4*(x)), *((quadlet_t *)&(v)))
/************ END PRIVATE INTERFACE **************/
#define FAIL(s) {fprintf(stderr, "libiec61883 error: %s\n", s);}
static void usage()
{
printf("plugctl: [-p port}] [-n node] <plug>.<attribute>[=<value>]\n");
printf("The equal sign determines whether you want to get or set the value\n");
printf("of a plug's attribute.\n");
printf("<plug> is one of oMPR, iMPR, oPCR[n], or iPCR[n] (case insensitive).\n");
printf("Please supply a numerical index for [n]!\n");
}
int main(int argc, const char** argv)
{
raw1394handle_t handle;
struct iec61883_oMPR o_mpr;
struct iec61883_oPCR o_pcr;
struct iec61883_iMPR i_mpr;
struct iec61883_iPCR i_pcr;
int result = 0;
int port = 0;
int node = 0xffc0;
int is_got_ompr = 0, is_got_opcr[32], is_got_impr = 0, is_got_ipcr[32];
int is_set_ompr = 0, is_set_opcr[32], is_set_impr = 0, is_set_ipcr[32];
int i;
if (argc == 1) {
usage();
return 0;
}
for (i = 0; i < 32; i++) {
is_got_opcr[i] = is_got_ipcr[i] = 0;
is_set_opcr[i] = is_set_ipcr[i] = 0;
}
for (i = 1; i < argc; i++)
{
if (strcmp (argv[i], "-p") == 0)
port = atoi (argv[++i]);
}
if (!(handle = raw1394_new_handle_on_port(port))) {
perror("raw1394 - couldn't get handle");
printf("This error usually means that the raw1394 driver is not loaded or that /dev/raw1394 does not exist.\n");
return EFAULT;
}
for (i = 1; i < argc && result == 0; i++)
{
if (strcmp (argv[i], "-n") == 0) {
node |= atoi (argv[++i]);
} else if (strncmp (argv[i], "-h", 2) == 0) {
usage();
return 0;
} else {
char *plug = strdup (argv[i]);
char *attribute = strchr (plug, '.');
if (attribute != NULL) {
char *valuestr = strchr (attribute, '=');
*attribute++ = '\0';
if (valuestr != NULL) {
/* set */
int value;
*valuestr++ = '\0';
value = atoi (valuestr);
if (strcasecmp (plug, "ompr") == 0) {
if (!is_got_ompr) {
result = iec61883_get_oMPR (handle, node, &o_mpr);
if (result < 0)
continue;
is_got_ompr = 1;
}
is_set_ompr = 1;
if (strcasecmp (attribute, "data_rate") == 0) {
o_mpr.data_rate = value;
} else if (strcasecmp (attribute, "bcast_channel") == 0) {
o_mpr.bcast_channel = value;
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
o_mpr.non_persist_ext = value;
} else if (strcasecmp (attribute, "persist_ext") == 0) {
o_mpr.persist_ext = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
o_mpr.reserved = value;
} else if (strcasecmp (attribute, "n_plugs") == 0) {
o_mpr.n_plugs = value;
} else {
result = EINVAL;
continue;
}
} else if (strcasecmp (plug, "impr") == 0) {
if (!is_got_impr) {
result = iec61883_get_iMPR (handle, node, &i_mpr);
if (result < 0)
continue;
is_got_impr = 1;
}
is_set_impr = 1;
if (strcasecmp (attribute, "data_rate") == 0) {
i_mpr.data_rate = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
i_mpr.reserved = value;
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
i_mpr.non_persist_ext = value;
} else if (strcasecmp (attribute, "persist_ext") == 0) {
i_mpr.persist_ext = value;
} else if (strcasecmp (attribute, "reserved2") == 0) {
i_mpr.reserved2 = value;
} else if (strcasecmp (attribute, "n_plugs") == 0) {
i_mpr.n_plugs = value;
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "opcr[", 5) == 0) {
int idx = atoi (plug + 5);
if (!is_got_opcr[idx]) {
result = iec61883_get_oPCRX (handle, node, &o_pcr, idx);
if (result < 0)
continue;
is_got_opcr[idx] = 1;
}
is_set_opcr[idx] = 1;
if (strcasecmp (attribute, "online") == 0) {
o_pcr.online = value;
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
o_pcr.bcast_connection = value;
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
o_pcr.n_p2p_connections = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
o_pcr.reserved = value;
} else if (strcasecmp (attribute, "channel") == 0) {
o_pcr.channel = value;
} else if (strcasecmp (attribute, "data_rate") == 0) {
o_pcr.data_rate = value;
} else if (strcasecmp (attribute, "overhead_id") == 0) {
o_pcr.overhead_id = value;
} else if (strcasecmp (attribute, "payload") == 0) {
o_pcr.payload = value;
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "ipcr[", 5) == 0) {
int idx = atoi (plug + 5);
if (!is_got_ipcr[idx]) {
result = iec61883_get_iPCRX (handle, node, &i_pcr, idx);
if (result < 0)
continue;
is_got_ipcr[idx] = 1;
}
is_set_ipcr[idx] = 1;
if (strcasecmp (attribute, "online") == 0) {
i_pcr.online = value;
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
i_pcr.bcast_connection = value;
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
i_pcr.n_p2p_connections = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
i_pcr.reserved = value;
} else if (strcasecmp (attribute, "channel") == 0) {
i_pcr.channel = value;
} else if (strcasecmp (attribute, "reserved2") == 0) {
i_pcr.reserved2 = value;
} else {
result = EINVAL;
continue;
}
} else {
result = EINVAL;
continue;
}
} else {
/* get */
if (strcasecmp (plug, "ompr") == 0) {
result = iec61883_get_oMPR (handle, node, &o_mpr);
if (result < 0)
continue;
if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", o_mpr.data_rate);
} else if (strcasecmp (attribute, "bcast_channel") == 0) {
printf ("%d\n", o_mpr.bcast_channel);
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
printf ("%d\n", o_mpr.non_persist_ext);
} else if (strcasecmp (attribute, "persist_ext") == 0) {
printf ("%d\n", o_mpr.persist_ext);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", o_mpr.reserved);
} else if (strcasecmp (attribute, "n_plugs") == 0) {
printf ("%d\n", o_mpr.n_plugs);
} else {
result = EINVAL;
continue;
}
} else if (strcasecmp (plug, "impr") == 0) {
result = iec61883_get_iMPR (handle, node, &i_mpr);
if (result < 0)
continue;
if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", i_mpr.data_rate);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", i_mpr.reserved);
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
printf ("%d\n", i_mpr.non_persist_ext);
} else if (strcasecmp (attribute, "persist_ext") == 0) {
printf ("%d\n", i_mpr.persist_ext);
} else if (strcasecmp (attribute, "reserved2") == 0) {
printf ("%d\n", i_mpr.reserved2);
} else if (strcasecmp (attribute, "n_plugs") == 0) {
printf ("%d\n", i_mpr.n_plugs);
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "opcr[", 5) == 0) {
int idx = atoi (plug + 5);
result = iec61883_get_oPCRX (handle, node, &o_pcr, idx);
if (result < 0)
continue;
if (strcasecmp (attribute, "online") == 0) {
printf ("%d\n", o_pcr.online);
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
printf ("%d\n", o_pcr.bcast_connection);
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
printf ("%d\n", o_pcr.n_p2p_connections);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", o_pcr.reserved);
} else if (strcasecmp (attribute, "channel") == 0) {
printf ("%d\n", o_pcr.channel);
} else if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", o_pcr.data_rate);
} else if (strcasecmp (attribute, "overhead_id") == 0) {
printf ("%d\n", o_pcr.overhead_id);
} else if (strcasecmp (attribute, "payload") == 0) {
printf ("%d\n", o_pcr.payload);
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "ipcr[", 5) == 0) {
int idx = atoi (plug + 5);
result = iec61883_get_iPCRX (handle, node, &i_pcr, idx);
if (result < 0)
continue;
if (strcasecmp (attribute, "online") == 0) {
printf ("%d\n", i_pcr.online);
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
printf ("%d\n", i_pcr.bcast_connection);
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
printf ("%d\n", i_pcr.n_p2p_connections);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", i_pcr.reserved);
} else if (strcasecmp (attribute, "channel") == 0) {
printf ("%d\n", i_pcr.channel);
} else if (strcasecmp (attribute, "reserved2") == 0) {
printf ("%d\n", i_pcr.reserved2);
} else {
result = EINVAL;
continue;
}
} else {
result = EINVAL;
continue;
}
}
}
free (plug);
}
}
if (result == 0 && is_set_ompr)
result = iec61883_set_oMPR (handle, node, o_mpr);
if (result == 0 && is_set_impr)
result = iec61883_set_iMPR (handle, node, i_mpr);
for (i = 0; result == 0 && i < 32; i++) {
if (is_set_opcr[i])
result = iec61883_set_oPCRX (handle, node, o_pcr, i);
if (is_set_ipcr[i])
result = iec61883_set_iPCRX (handle, node, i_pcr, i);
}
raw1394_destroy_handle(handle);
return result;
}
|
