1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * comedi/drivers/tests/ni_routes_test.c
4 * Unit tests for NI routes (ni_routes.c module).
5 *
6 * COMEDI - Linux Control and Measurement Device Interface
7 * Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
19
20#include <linux/module.h>
21
22#include "../ni_stc.h"
23#include "../ni_routes.h"
24#include "unittest.h"
25
26#define RVI(table, src, dest) ((table)[(dest) * NI_NUM_NAMES + (src)])
27#define O(x) ((x) + NI_NAMES_BASE)
28#define B(x) ((x) - NI_NAMES_BASE)
29#define V(x) ((x) | 0x80)
30
31/* *** BEGIN fake board data *** */
32static const char *pci_6070e = "pci-6070e";
33static const char *pci_6220 = "pci-6220";
34static const char *pci_fake = "pci-fake";
35
36static const char *ni_eseries = "ni_eseries";
37static const char *ni_mseries = "ni_mseries";
38
39static struct ni_board_struct board = {
40 .name = NULL,
41};
42
43static struct ni_private private = {
44 .is_m_series = 0,
45};
46
47static const int bad_dest = O(8), dest0 = O(0), desti = O(5);
48static const int ith_dest_index = 2;
49static const int no_val_dest = O(7), no_val_index = 4;
50
51/* These have to be defs to be used in init code below */
52#define rgout0_src0 (O(100))
53#define rgout0_src1 (O(101))
54#define brd0_src0 (O(110))
55#define brd0_src1 (O(111))
56#define brd1_src0 (O(120))
57#define brd1_src1 (O(121))
58#define brd2_src0 (O(130))
59#define brd2_src1 (O(131))
60#define brd3_src0 (O(140))
61#define brd3_src1 (O(141))
62
63/* I1 and I2 should not call O(...). Mostly here to shut checkpatch.pl up */
64#define I1(x1) \
65 ((int[]){ \
66 (x1), 0 \
67 })
68#define I2(x1, x2) \
69 ((int[]){ \
70 (x1), (x2), 0 \
71 })
72#define I3(x1, x2, x3) \
73 ((int[]){ \
74 (x1), (x2), (x3), 0 \
75 })
76
77/* O9 is build to call O(...) for each arg */
78#define O9(x1, x2, x3, x4, x5, x6, x7, x8, x9) \
79 ((int[]){ \
80 O(x1), O(x2), O(x3), O(x4), O(x5), O(x6), O(x7), O(x8), O(x9), \
81 0 \
82 })
83
84static struct ni_device_routes DR = {
85 .device = "testdev",
86 .routes = (struct ni_route_set[]){
87 {.dest = O(0), .src = O9(/**/1, 2, 3, 4, 5, 6, 7, 8, 9)},
88 {.dest = O(1), .src = O9(0, /**/2, 3, 4, 5, 6, 7, 8, 9)},
89 /* ith route_set */
90 {.dest = O(5), .src = O9(0, 1, 2, 3, 4,/**/ 6, 7, 8, 9)},
91 {.dest = O(6), .src = O9(0, 1, 2, 3, 4, 5,/**/ 7, 8, 9)},
92 /* next one will not have valid reg values */
93 {.dest = O(7), .src = O9(0, 1, 2, 3, 4, 5, 6,/**/ 8, 9)},
94 {.dest = O(9), .src = O9(0, 1, 2, 3, 4, 5, 6, 7, 8/**/)},
95
96 /* indirect routes done through muxes */
97 {.dest = TRIGGER_LINE(0), .src = I1(rgout0_src0)},
98 {.dest = TRIGGER_LINE(1), .src = I3(rgout0_src0,
99 brd3_src0,
100 brd3_src1)},
101 {.dest = TRIGGER_LINE(2), .src = I3(rgout0_src1,
102 brd2_src0,
103 brd2_src1)},
104 {.dest = TRIGGER_LINE(3), .src = I3(rgout0_src1,
105 brd1_src0,
106 brd1_src1)},
107 {.dest = TRIGGER_LINE(4), .src = I2(brd0_src0,
108 brd0_src1)},
109 {.dest = 0},
110 },
111};
112
113#undef I1
114#undef I2
115#undef O9
116
117#define RV9(x1, x2, x3, x4, x5, x6, x7, x8, x9) \
118 [x1] = V(x1), [x2] = V(x2), [x3] = V(x3), [x4] = V(x4), \
119 [x5] = V(x5), [x6] = V(x6), [x7] = V(x7), [x8] = V(x8), \
120 [x9] = V(x9),
121
122/* This table is indexed as RV[destination][source] */
123static const u8 RV[NI_NUM_NAMES][NI_NUM_NAMES] = {
124 [0] = {RV9(/**/1, 2, 3, 4, 5, 6, 7, 8, 9)},
125 [1] = {RV9(0,/**/ 2, 3, 4, 5, 6, 7, 8, 9)},
126 [2] = {RV9(0, 1,/**/3, 4, 5, 6, 7, 8, 9)},
127 [3] = {RV9(0, 1, 2,/**/4, 5, 6, 7, 8, 9)},
128 [4] = {RV9(0, 1, 2, 3,/**/5, 6, 7, 8, 9)},
129 [5] = {RV9(0, 1, 2, 3, 4,/**/6, 7, 8, 9)},
130 [6] = {RV9(0, 1, 2, 3, 4, 5,/**/7, 8, 9)},
131 /* [7] is intentionaly left absent to test invalid routes */
132 [8] = {RV9(0, 1, 2, 3, 4, 5, 6, 7,/**/9)},
133 [9] = {RV9(0, 1, 2, 3, 4, 5, 6, 7, 8/**/)},
134 /* some tests for needing extra muxes */
135 [B(NI_RGOUT0)] = {[B(rgout0_src0)] = V(0),
136 [B(rgout0_src1)] = V(1)},
137 [B(NI_RTSI_BRD(0))] = {[B(brd0_src0)] = V(0),
138 [B(brd0_src1)] = V(1)},
139 [B(NI_RTSI_BRD(1))] = {[B(brd1_src0)] = V(0),
140 [B(brd1_src1)] = V(1)},
141 [B(NI_RTSI_BRD(2))] = {[B(brd2_src0)] = V(0),
142 [B(brd2_src1)] = V(1)},
143 [B(NI_RTSI_BRD(3))] = {[B(brd3_src0)] = V(0),
144 [B(brd3_src1)] = V(1)},
145};
146
147#undef RV9
148
149/* *** END fake board data *** */
150
151/* *** BEGIN board data initializers *** */
152static void init_private(void)
153{
154 memset(&private, 0, sizeof(struct ni_private));
155}
156
157static void init_pci_6070e(void)
158{
159 board.name = pci_6070e;
160 init_private();
161 private.is_m_series = 0;
162}
163
164static void init_pci_6220(void)
165{
166 board.name = pci_6220;
167 init_private();
168 private.is_m_series = 1;
169}
170
171static void init_pci_fake(void)
172{
173 board.name = pci_fake;
174 init_private();
175 private.routing_tables.route_values = &RV[0][0];
176 private.routing_tables.valid_routes = &DR;
177}
178
179/* *** END board data initializers *** */
180
181/* Tests that route_sets are in order of the signal destination. */
182static bool route_set_dests_in_order(const struct ni_device_routes *devroutes)
183{
184 int i;
185 int last = NI_NAMES_BASE - 1;
186
187 for (i = 0; i < devroutes->n_route_sets; ++i) {
188 if (last >= devroutes->routes[i].dest)
189 return false;
190 last = devroutes->routes[i].dest;
191 }
192 return true;
193}
194
195/* Tests that all route_set->src are in order of the signal source. */
196static bool route_set_sources_in_order(const struct ni_device_routes *devroutes)
197{
198 int i;
199
200 for (i = 0; i < devroutes->n_route_sets; ++i) {
201 int j;
202 int last = NI_NAMES_BASE - 1;
203
204 for (j = 0; j < devroutes->routes[i].n_src; ++j) {
205 if (last >= devroutes->routes[i].src[j])
206 return false;
207 last = devroutes->routes[i].src[j];
208 }
209 }
210 return true;
211}
212
213static void test_ni_assign_device_routes(void)
214{
215 const struct ni_device_routes *devroutes;
216 const u8 *table, *oldtable;
217
218 init_pci_6070e();
219 ni_assign_device_routes(device_family: ni_eseries, board_name: pci_6070e, NULL,
220 tables: &private.routing_tables);
221 devroutes = private.routing_tables.valid_routes;
222 table = private.routing_tables.route_values;
223
224 unittest(strncmp(devroutes->device, pci_6070e, 10) == 0,
225 "find device pci-6070e\n");
226 unittest(devroutes->n_route_sets == 37,
227 "number of pci-6070e route_sets == 37\n");
228 unittest(devroutes->routes->dest == NI_PFI(0),
229 "first pci-6070e route_set is for NI_PFI(0)\n");
230 unittest(devroutes->routes->n_src == 1,
231 "first pci-6070e route_set length == 1\n");
232 unittest(devroutes->routes->src[0] == NI_AI_StartTrigger,
233 "first pci-6070e route_set src. == NI_AI_StartTrigger\n");
234 unittest(devroutes->routes[10].dest == TRIGGER_LINE(0),
235 "10th pci-6070e route_set is for TRIGGER_LINE(0)\n");
236 unittest(devroutes->routes[10].n_src == 10,
237 "10th pci-6070e route_set length == 10\n");
238 unittest(devroutes->routes[10].src[0] == NI_CtrSource(0),
239 "10th pci-6070e route_set src. == NI_CtrSource(0)\n");
240 unittest(route_set_dests_in_order(devroutes),
241 "all pci-6070e route_sets in order of signal destination\n");
242 unittest(route_set_sources_in_order(devroutes),
243 "all pci-6070e route_set->src's in order of signal source\n");
244
245 unittest(RVI(table, B(PXI_Star), B(NI_AI_SampleClock)) == V(17) &&
246 RVI(table, B(NI_10MHzRefClock), B(TRIGGER_LINE(0))) == 0 &&
247 RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(0))) == 0 &&
248 RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(2))) == V(NI_PFI_OUTPUT_AI_CONVERT),
249 "pci-6070e finds e-series route_values table\n");
250
251 oldtable = table;
252 init_pci_6220();
253 ni_assign_device_routes(device_family: ni_mseries, board_name: pci_6220, NULL,
254 tables: &private.routing_tables);
255 devroutes = private.routing_tables.valid_routes;
256 table = private.routing_tables.route_values;
257
258 unittest(strncmp(devroutes->device, pci_6220, 10) == 0,
259 "find device pci-6220\n");
260 unittest(oldtable != table, "pci-6220 find other route_values table\n");
261
262 unittest(RVI(table, B(PXI_Star), B(NI_AI_SampleClock)) == V(20) &&
263 RVI(table, B(NI_10MHzRefClock), B(TRIGGER_LINE(0))) == V(12) &&
264 RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(0))) == V(3) &&
265 RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(2))) == V(3),
266 "pci-6220 finds m-series route_values table\n");
267}
268
269static void test_ni_sort_device_routes(void)
270{
271 /* We begin by sorting the device routes for use in later tests */
272 ni_sort_device_routes(valid_routes: &DR);
273 /* now we test that sorting. */
274 unittest(route_set_dests_in_order(&DR),
275 "all route_sets of fake data in order of sig. destination\n");
276 unittest(route_set_sources_in_order(&DR),
277 "all route_set->src's of fake data in order of sig. source\n");
278}
279
280static void test_ni_find_route_set(void)
281{
282 unittest(!ni_find_route_set(bad_dest, &DR),
283 "check for nonexistent route_set\n");
284 unittest(ni_find_route_set(dest0, &DR) == &DR.routes[0],
285 "find first route_set\n");
286 unittest(ni_find_route_set(desti, &DR) == &DR.routes[ith_dest_index],
287 "find ith route_set\n");
288 unittest(ni_find_route_set(no_val_dest, &DR) ==
289 &DR.routes[no_val_index],
290 "find no_val route_set in spite of missing values\n");
291 unittest(ni_find_route_set(DR.routes[DR.n_route_sets - 1].dest, &DR) ==
292 &DR.routes[DR.n_route_sets - 1],
293 "find last route_set\n");
294}
295
296static void test_ni_route_set_has_source(void)
297{
298 unittest(!ni_route_set_has_source(&DR.routes[0], O(0)),
299 "check for bad source\n");
300 unittest(ni_route_set_has_source(&DR.routes[0], O(1)),
301 "find first source\n");
302 unittest(ni_route_set_has_source(&DR.routes[0], O(5)),
303 "find fifth source\n");
304 unittest(ni_route_set_has_source(&DR.routes[0], O(9)),
305 "find last source\n");
306}
307
308static void test_ni_route_to_register(void)
309{
310 const struct ni_route_tables *T = &private.routing_tables;
311
312 init_pci_fake();
313 unittest(ni_route_to_register(O(0), O(0), T) < 0,
314 "check for bad route 0-->0\n");
315 unittest(ni_route_to_register(O(1), O(0), T) == 1,
316 "validate first destination\n");
317 unittest(ni_route_to_register(O(6), O(5), T) == 6,
318 "validate middle destination\n");
319 unittest(ni_route_to_register(O(8), O(9), T) == 8,
320 "validate last destination\n");
321
322 /* choice of trigger line in the following is somewhat random */
323 unittest(ni_route_to_register(rgout0_src0, TRIGGER_LINE(0), T) == 0,
324 "validate indirect route through rgout0 to TRIGGER_LINE(0)\n");
325 unittest(ni_route_to_register(rgout0_src0, TRIGGER_LINE(1), T) == 0,
326 "validate indirect route through rgout0 to TRIGGER_LINE(1)\n");
327 unittest(ni_route_to_register(rgout0_src1, TRIGGER_LINE(2), T) == 1,
328 "validate indirect route through rgout0 to TRIGGER_LINE(2)\n");
329 unittest(ni_route_to_register(rgout0_src1, TRIGGER_LINE(3), T) == 1,
330 "validate indirect route through rgout0 to TRIGGER_LINE(3)\n");
331
332 unittest(ni_route_to_register(brd0_src0, TRIGGER_LINE(4), T) ==
333 BIT(6),
334 "validate indirect route through brd0 to TRIGGER_LINE(4)\n");
335 unittest(ni_route_to_register(brd0_src1, TRIGGER_LINE(4), T) ==
336 BIT(6),
337 "validate indirect route through brd0 to TRIGGER_LINE(4)\n");
338 unittest(ni_route_to_register(brd1_src0, TRIGGER_LINE(3), T) ==
339 BIT(6),
340 "validate indirect route through brd1 to TRIGGER_LINE(3)\n");
341 unittest(ni_route_to_register(brd1_src1, TRIGGER_LINE(3), T) ==
342 BIT(6),
343 "validate indirect route through brd1 to TRIGGER_LINE(3)\n");
344 unittest(ni_route_to_register(brd2_src0, TRIGGER_LINE(2), T) ==
345 BIT(6),
346 "validate indirect route through brd2 to TRIGGER_LINE(2)\n");
347 unittest(ni_route_to_register(brd2_src1, TRIGGER_LINE(2), T) ==
348 BIT(6),
349 "validate indirect route through brd2 to TRIGGER_LINE(2)\n");
350 unittest(ni_route_to_register(brd3_src0, TRIGGER_LINE(1), T) ==
351 BIT(6),
352 "validate indirect route through brd3 to TRIGGER_LINE(1)\n");
353 unittest(ni_route_to_register(brd3_src1, TRIGGER_LINE(1), T) ==
354 BIT(6),
355 "validate indirect route through brd3 to TRIGGER_LINE(1)\n");
356}
357
358static void test_ni_lookup_route_register(void)
359{
360 const struct ni_route_tables *T = &private.routing_tables;
361
362 init_pci_fake();
363 unittest(ni_lookup_route_register(O(0), O(0), T) == -EINVAL,
364 "check for bad route 0-->0\n");
365 unittest(ni_lookup_route_register(O(1), O(0), T) == 1,
366 "validate first destination\n");
367 unittest(ni_lookup_route_register(O(6), O(5), T) == 6,
368 "validate middle destination\n");
369 unittest(ni_lookup_route_register(O(8), O(9), T) == 8,
370 "validate last destination\n");
371 unittest(ni_lookup_route_register(O(10), O(9), T) == -EINVAL,
372 "lookup invalid destination\n");
373
374 unittest(ni_lookup_route_register(rgout0_src0, TRIGGER_LINE(0), T) ==
375 -EINVAL,
376 "rgout0_src0: no direct lookup of indirect route\n");
377 unittest(ni_lookup_route_register(rgout0_src0, NI_RGOUT0, T) == 0,
378 "rgout0_src0: lookup indirect route register\n");
379 unittest(ni_lookup_route_register(rgout0_src1, TRIGGER_LINE(2), T) ==
380 -EINVAL,
381 "rgout0_src1: no direct lookup of indirect route\n");
382 unittest(ni_lookup_route_register(rgout0_src1, NI_RGOUT0, T) == 1,
383 "rgout0_src1: lookup indirect route register\n");
384
385 unittest(ni_lookup_route_register(brd0_src0, TRIGGER_LINE(4), T) ==
386 -EINVAL,
387 "brd0_src0: no direct lookup of indirect route\n");
388 unittest(ni_lookup_route_register(brd0_src0, NI_RTSI_BRD(0), T) == 0,
389 "brd0_src0: lookup indirect route register\n");
390 unittest(ni_lookup_route_register(brd0_src1, TRIGGER_LINE(4), T) ==
391 -EINVAL,
392 "brd0_src1: no direct lookup of indirect route\n");
393 unittest(ni_lookup_route_register(brd0_src1, NI_RTSI_BRD(0), T) == 1,
394 "brd0_src1: lookup indirect route register\n");
395}
396
397static void test_route_is_valid(void)
398{
399 const struct ni_route_tables *T = &private.routing_tables;
400
401 init_pci_fake();
402 unittest(!route_is_valid(O(0), O(0), T),
403 "check for bad route 0-->0\n");
404 unittest(route_is_valid(O(0), O(1), T),
405 "validate first destination\n");
406 unittest(route_is_valid(O(5), O(6), T),
407 "validate middle destination\n");
408 unittest(route_is_valid(O(8), O(9), T),
409 "validate last destination\n");
410}
411
412static void test_ni_is_cmd_dest(void)
413{
414 init_pci_fake();
415 unittest(ni_is_cmd_dest(NI_AI_SampleClock),
416 "check that AI/SampleClock is cmd destination\n");
417 unittest(ni_is_cmd_dest(NI_AI_StartTrigger),
418 "check that AI/StartTrigger is cmd destination\n");
419 unittest(ni_is_cmd_dest(NI_AI_ConvertClock),
420 "check that AI/ConvertClock is cmd destination\n");
421 unittest(ni_is_cmd_dest(NI_AO_SampleClock),
422 "check that AO/SampleClock is cmd destination\n");
423 unittest(ni_is_cmd_dest(NI_DO_SampleClock),
424 "check that DO/SampleClock is cmd destination\n");
425 unittest(!ni_is_cmd_dest(NI_AO_SampleClockTimebase),
426 "check that AO/SampleClockTimebase _not_ cmd destination\n");
427}
428
429static void test_channel_is_pfi(void)
430{
431 init_pci_fake();
432 unittest(channel_is_pfi(NI_PFI(0)), "check First pfi channel\n");
433 unittest(channel_is_pfi(NI_PFI(10)), "check 10th pfi channel\n");
434 unittest(channel_is_pfi(NI_PFI(-1)), "check last pfi channel\n");
435 unittest(!channel_is_pfi(NI_PFI(-1) + 1),
436 "check first non pfi channel\n");
437}
438
439static void test_channel_is_rtsi(void)
440{
441 init_pci_fake();
442 unittest(channel_is_rtsi(TRIGGER_LINE(0)),
443 "check First rtsi channel\n");
444 unittest(channel_is_rtsi(TRIGGER_LINE(3)),
445 "check 3rd rtsi channel\n");
446 unittest(channel_is_rtsi(TRIGGER_LINE(-1)),
447 "check last rtsi channel\n");
448 unittest(!channel_is_rtsi(TRIGGER_LINE(-1) + 1),
449 "check first non rtsi channel\n");
450}
451
452static void test_ni_count_valid_routes(void)
453{
454 const struct ni_route_tables *T = &private.routing_tables;
455
456 init_pci_fake();
457 unittest(ni_count_valid_routes(T) == 57, "count all valid routes\n");
458}
459
460static void test_ni_get_valid_routes(void)
461{
462 const struct ni_route_tables *T = &private.routing_tables;
463 unsigned int pair_data[2];
464
465 init_pci_fake();
466 unittest(ni_get_valid_routes(T, 0, NULL) == 57,
467 "count all valid routes through ni_get_valid_routes\n");
468
469 unittest(ni_get_valid_routes(T, 1, pair_data) == 1,
470 "copied first valid route from ni_get_valid_routes\n");
471 unittest(pair_data[0] == O(1),
472 "source of first valid pair from ni_get_valid_routes\n");
473 unittest(pair_data[1] == O(0),
474 "destination of first valid pair from ni_get_valid_routes\n");
475}
476
477static void test_ni_find_route_source(void)
478{
479 const struct ni_route_tables *T = &private.routing_tables;
480
481 init_pci_fake();
482 unittest(ni_find_route_source(4, O(4), T) == -EINVAL,
483 "check for bad source 4-->4\n");
484 unittest(ni_find_route_source(0, O(1), T) == O(0),
485 "find first source\n");
486 unittest(ni_find_route_source(4, O(6), T) == O(4),
487 "find middle source\n");
488 unittest(ni_find_route_source(9, O(8), T) == O(9),
489 "find last source");
490 unittest(ni_find_route_source(8, O(9), T) == O(8),
491 "find invalid source (without checking device routes)\n");
492}
493
494static void test_route_register_is_valid(void)
495{
496 const struct ni_route_tables *T = &private.routing_tables;
497
498 init_pci_fake();
499 unittest(!route_register_is_valid(4, O(4), T),
500 "check for bad source 4-->4\n");
501 unittest(route_register_is_valid(0, O(1), T),
502 "find first source\n");
503 unittest(route_register_is_valid(4, O(6), T),
504 "find middle source\n");
505 unittest(route_register_is_valid(9, O(8), T),
506 "find last source");
507}
508
509static void test_ni_check_trigger_arg(void)
510{
511 const struct ni_route_tables *T = &private.routing_tables;
512
513 init_pci_fake();
514 unittest(ni_check_trigger_arg(0, O(0), T) == -EINVAL,
515 "check bad direct trigger arg for first reg->dest\n");
516 unittest(ni_check_trigger_arg(0, O(1), T) == 0,
517 "check direct trigger arg for first reg->dest\n");
518 unittest(ni_check_trigger_arg(4, O(6), T) == 0,
519 "check direct trigger arg for middle reg->dest\n");
520 unittest(ni_check_trigger_arg(9, O(8), T) == 0,
521 "check direct trigger arg for last reg->dest\n");
522
523 unittest(ni_check_trigger_arg_roffs(-1, O(0), T, 1) == -EINVAL,
524 "check bad direct trigger arg for first reg->dest w/offs\n");
525 unittest(ni_check_trigger_arg_roffs(0, O(1), T, 0) == 0,
526 "check direct trigger arg for first reg->dest w/offs\n");
527 unittest(ni_check_trigger_arg_roffs(3, O(6), T, 1) == 0,
528 "check direct trigger arg for middle reg->dest w/offs\n");
529 unittest(ni_check_trigger_arg_roffs(7, O(8), T, 2) == 0,
530 "check direct trigger arg for last reg->dest w/offs\n");
531
532 unittest(ni_check_trigger_arg(O(0), O(0), T) == -EINVAL,
533 "check bad trigger arg for first src->dest\n");
534 unittest(ni_check_trigger_arg(O(0), O(1), T) == 0,
535 "check trigger arg for first src->dest\n");
536 unittest(ni_check_trigger_arg(O(5), O(6), T) == 0,
537 "check trigger arg for middle src->dest\n");
538 unittest(ni_check_trigger_arg(O(8), O(9), T) == 0,
539 "check trigger arg for last src->dest\n");
540}
541
542static void test_ni_get_reg_value(void)
543{
544 const struct ni_route_tables *T = &private.routing_tables;
545
546 init_pci_fake();
547 unittest(ni_get_reg_value(0, O(0), T) == -1,
548 "check bad direct trigger arg for first reg->dest\n");
549 unittest(ni_get_reg_value(0, O(1), T) == 0,
550 "check direct trigger arg for first reg->dest\n");
551 unittest(ni_get_reg_value(4, O(6), T) == 4,
552 "check direct trigger arg for middle reg->dest\n");
553 unittest(ni_get_reg_value(9, O(8), T) == 9,
554 "check direct trigger arg for last reg->dest\n");
555
556 unittest(ni_get_reg_value_roffs(-1, O(0), T, 1) == -1,
557 "check bad direct trigger arg for first reg->dest w/offs\n");
558 unittest(ni_get_reg_value_roffs(0, O(1), T, 0) == 0,
559 "check direct trigger arg for first reg->dest w/offs\n");
560 unittest(ni_get_reg_value_roffs(3, O(6), T, 1) == 4,
561 "check direct trigger arg for middle reg->dest w/offs\n");
562 unittest(ni_get_reg_value_roffs(7, O(8), T, 2) == 9,
563 "check direct trigger arg for last reg->dest w/offs\n");
564
565 unittest(ni_get_reg_value(O(0), O(0), T) == -1,
566 "check bad trigger arg for first src->dest\n");
567 unittest(ni_get_reg_value(O(0), O(1), T) == 0,
568 "check trigger arg for first src->dest\n");
569 unittest(ni_get_reg_value(O(5), O(6), T) == 5,
570 "check trigger arg for middle src->dest\n");
571 unittest(ni_get_reg_value(O(8), O(9), T) == 8,
572 "check trigger arg for last src->dest\n");
573}
574
575/* **** BEGIN simple module entry/exit functions **** */
576static int __init ni_routes_unittest(void)
577{
578 static const unittest_fptr unit_tests[] = {
579 test_ni_assign_device_routes,
580 test_ni_sort_device_routes,
581 test_ni_find_route_set,
582 test_ni_route_set_has_source,
583 test_ni_route_to_register,
584 test_ni_lookup_route_register,
585 test_route_is_valid,
586 test_ni_is_cmd_dest,
587 test_channel_is_pfi,
588 test_channel_is_rtsi,
589 test_ni_count_valid_routes,
590 test_ni_get_valid_routes,
591 test_ni_find_route_source,
592 test_route_register_is_valid,
593 test_ni_check_trigger_arg,
594 test_ni_get_reg_value,
595 NULL,
596 };
597
598 exec_unittests(name: "ni_routes", unit_tests);
599 return 0;
600}
601
602static void __exit ni_routes_unittest_exit(void) { }
603
604module_init(ni_routes_unittest);
605module_exit(ni_routes_unittest_exit);
606
607MODULE_AUTHOR("Comedi https://www.comedi.org");
608MODULE_DESCRIPTION("Comedi unit-tests for ni_routes module");
609MODULE_LICENSE("GPL");
610/* **** END simple module entry/exit functions **** */
611

source code of linux/drivers/comedi/drivers/tests/ni_routes_test.c