xref: /openbmc/u-boot/test/dm/test-main.c (revision 24b852a7a2b8eca71789100983bdb5104cc00696)
1 /*
2  * Copyright (c) 2013 Google, Inc
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <command.h>
9 #include <console.h>
10 #include <dm.h>
11 #include <errno.h>
12 #include <malloc.h>
13 #include <asm/state.h>
14 #include <dm/test.h>
15 #include <dm/root.h>
16 #include <dm/uclass-internal.h>
17 #include <test/ut.h>
18 
19 DECLARE_GLOBAL_DATA_PTR;
20 
21 struct unit_test_state global_dm_test_state;
22 static struct dm_test_state _global_priv_dm_test_state;
23 
24 /* Get ready for testing */
25 static int dm_test_init(struct unit_test_state *uts)
26 {
27 	struct dm_test_state *dms = uts->priv;
28 
29 	memset(dms, '\0', sizeof(*dms));
30 	gd->dm_root = NULL;
31 	memset(dm_testdrv_op_count, '\0', sizeof(dm_testdrv_op_count));
32 
33 	ut_assertok(dm_init());
34 	dms->root = dm_root();
35 
36 	return 0;
37 }
38 
39 /* Ensure all the test devices are probed */
40 static int do_autoprobe(struct unit_test_state *uts)
41 {
42 	struct udevice *dev;
43 	int ret;
44 
45 	/* Scanning the uclass is enough to probe all the devices */
46 	for (ret = uclass_first_device(UCLASS_TEST, &dev);
47 	     dev;
48 	     ret = uclass_next_device(&dev))
49 		;
50 
51 	return ret;
52 }
53 
54 static int dm_test_destroy(struct unit_test_state *uts)
55 {
56 	int id;
57 
58 	for (id = 0; id < UCLASS_COUNT; id++) {
59 		struct uclass *uc;
60 
61 		/*
62 		 * If the uclass doesn't exist we don't want to create it. So
63 		 * check that here before we call uclass_find_device()/
64 		 */
65 		uc = uclass_find(id);
66 		if (!uc)
67 			continue;
68 		ut_assertok(uclass_destroy(uc));
69 	}
70 
71 	return 0;
72 }
73 
74 static int dm_test_main(const char *test_name)
75 {
76 	struct unit_test *tests = ll_entry_start(struct unit_test, dm_test);
77 	const int n_ents = ll_entry_count(struct unit_test, dm_test);
78 	struct unit_test_state *uts = &global_dm_test_state;
79 	uts->priv = &_global_priv_dm_test_state;
80 	struct unit_test *test;
81 	int run_count;
82 
83 	/*
84 	 * If we have no device tree, or it only has a root node, then these
85 	 * tests clearly aren't going to work...
86 	 */
87 	if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
88 		puts("Please run with test device tree:\n"
89 		     "    ./u-boot -d arch/sandbox/dts/test.dtb\n");
90 		ut_assert(gd->fdt_blob);
91 	}
92 
93 	if (!test_name)
94 		printf("Running %d driver model tests\n", n_ents);
95 
96 	run_count = 0;
97 	for (test = tests; test < tests + n_ents; test++) {
98 		const char *name = test->name;
99 
100 		/* All tests have this prefix */
101 		if (!strncmp(name, "dm_test_", 8))
102 			name += 8;
103 		if (test_name && strcmp(test_name, name))
104 			continue;
105 		printf("Test: %s\n", test->name);
106 		run_count++;
107 		ut_assertok(dm_test_init(uts));
108 
109 		uts->start = mallinfo();
110 		if (test->flags & DM_TESTF_SCAN_PDATA)
111 			ut_assertok(dm_scan_platdata(false));
112 		if (test->flags & DM_TESTF_PROBE_TEST)
113 			ut_assertok(do_autoprobe(uts));
114 		if (test->flags & DM_TESTF_SCAN_FDT)
115 			ut_assertok(dm_scan_fdt(gd->fdt_blob, false));
116 
117 		test->func(uts);
118 		state_set_skip_delays(false);
119 
120 		ut_assertok(dm_test_destroy(uts));
121 	}
122 
123 	if (test_name && !run_count)
124 		printf("Test '%s' not found\n", test_name);
125 	else
126 		printf("Failures: %d\n", uts->fail_count);
127 
128 	gd->dm_root = NULL;
129 	ut_assertok(dm_init());
130 	dm_scan_platdata(false);
131 	dm_scan_fdt(gd->fdt_blob, false);
132 
133 	return uts->fail_count ? CMD_RET_FAILURE : 0;
134 }
135 
136 int do_ut_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
137 {
138 	const char *test_name = NULL;
139 
140 	if (argc > 1)
141 		test_name = argv[1];
142 
143 	return dm_test_main(test_name);
144 }
145