dm: Add basic tests
[karo-tx-uboot.git] / test / dm / test-main.c
1 /*
2  * Copyright (c) 2013 Google, Inc
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <errno.h>
10 #include <dm/test.h>
11 #include <dm/root.h>
12 #include <dm/uclass-internal.h>
13 #include <dm/ut.h>
14
15 DECLARE_GLOBAL_DATA_PTR;
16
17 struct dm_test_state global_test_state;
18
19 /* Get ready for testing */
20 static int dm_test_init(struct dm_test_state *dms)
21 {
22         memset(dms, '\0', sizeof(*dms));
23         gd->dm_root = NULL;
24         memset(dm_testdrv_op_count, '\0', sizeof(dm_testdrv_op_count));
25
26         ut_assertok(dm_init());
27         dms->root = dm_root();
28
29         return 0;
30 }
31
32 /* Ensure all the test devices are probed */
33 static int do_autoprobe(struct dm_test_state *dms)
34 {
35         struct device *dev;
36         int ret;
37
38         /* Scanning the uclass is enough to probe all the devices */
39         for (ret = uclass_first_device(UCLASS_TEST, &dev);
40              dev;
41              ret = uclass_next_device(&dev))
42                 ;
43
44         return ret;
45 }
46
47 static int dm_test_destroy(struct dm_test_state *dms)
48 {
49         int id;
50
51         for (id = 0; id < UCLASS_COUNT; id++) {
52                 struct uclass *uc;
53
54                 /*
55                  * If the uclass doesn't exist we don't want to create it. So
56                  * check that here before we call uclass_find_device()/
57                  */
58                 uc = uclass_find(id);
59                 if (!uc)
60                         continue;
61                 ut_assertok(uclass_destroy(uc));
62         }
63
64         return 0;
65 }
66
67 int dm_test_main(void)
68 {
69         struct dm_test *tests = ll_entry_start(struct dm_test, dm_test);
70         const int n_ents = ll_entry_count(struct dm_test, dm_test);
71         struct dm_test_state *dms = &global_test_state;
72         struct dm_test *test;
73
74         /*
75          * If we have no device tree, or it only has a root node, then these
76          * tests clearly aren't going to work...
77          */
78         if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
79                 puts("Please run with test device tree:\n"
80                      "     dtc -I dts -O dtb test/dm/test.dts  -o test/dm/test.dtb\n"
81                      "    ./u-boot -d test/dm/test.dtb\n");
82                 ut_assert(gd->fdt_blob);
83         }
84
85         printf("Running %d driver model tests\n", n_ents);
86
87         for (test = tests; test < tests + n_ents; test++) {
88                 printf("Test: %s\n", test->name);
89                 ut_assertok(dm_test_init(dms));
90
91                 if (test->flags & DM_TESTF_SCAN_PDATA)
92                         ut_assertok(dm_scan_platdata());
93                 if (test->flags & DM_TESTF_PROBE_TEST)
94                         ut_assertok(do_autoprobe(dms));
95                 if (test->flags & DM_TESTF_SCAN_FDT)
96                         ut_assertok(dm_scan_fdt(gd->fdt_blob));
97
98                 if (test->func(dms))
99                         break;
100
101                 ut_assertok(dm_test_destroy(dms));
102         }
103
104         printf("Failures: %d\n", dms->fail_count);
105
106         return 0;
107 }