xref: /openbmc/u-boot/test/dm/blk.c (revision 6c6260ec)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2015 Google, Inc
4  */
5 
6 #include <common.h>
7 #include <dm.h>
8 #include <usb.h>
9 #include <asm/state.h>
10 #include <dm/test.h>
11 #include <test/ut.h>
12 
13 DECLARE_GLOBAL_DATA_PTR;
14 
15 /* Test that block devices can be created */
16 static int dm_test_blk_base(struct unit_test_state *uts)
17 {
18 	struct udevice *blk1, *blk3, *dev;
19 
20 	/* Make sure there are no block devices */
21 	ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_BLK, 0, &dev));
22 
23 	/* Create two, one the parent of the other */
24 	ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
25 				      IF_TYPE_HOST, 1, 512, 2, &blk1));
26 	ut_assertok(blk_create_device(blk1, "sandbox_host_blk", "test",
27 				      IF_TYPE_HOST, 3, 512, 2, &blk3));
28 
29 	/* Check we can find them */
30 	ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_HOST, 0, &dev));
31 	ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
32 	ut_asserteq_ptr(blk1, dev);
33 	ut_assertok(blk_get_device(IF_TYPE_HOST, 3, &dev));
34 	ut_asserteq_ptr(blk3, dev);
35 
36 	/* Check we can iterate */
37 	ut_assertok(blk_first_device(IF_TYPE_HOST, &dev));
38 	ut_asserteq_ptr(blk1, dev);
39 	ut_assertok(blk_next_device(&dev));
40 	ut_asserteq_ptr(blk3, dev);
41 
42 	return 0;
43 }
44 DM_TEST(dm_test_blk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
45 
46 static int count_blk_devices(void)
47 {
48 	struct udevice *blk;
49 	struct uclass *uc;
50 	int count = 0;
51 	int ret;
52 
53 	ret = uclass_get(UCLASS_BLK, &uc);
54 	if (ret)
55 		return ret;
56 
57 	uclass_foreach_dev(blk, uc)
58 		count++;
59 
60 	return count;
61 }
62 
63 /* Test that block devices work correctly with USB */
64 static int dm_test_blk_usb(struct unit_test_state *uts)
65 {
66 	struct udevice *usb_dev, *dev;
67 	struct blk_desc *dev_desc;
68 
69 	/* Get a flash device */
70 	state_set_skip_delays(true);
71 	ut_assertok(usb_init());
72 	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &usb_dev));
73 	ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc));
74 
75 	/* The parent should be a block device */
76 	ut_assertok(blk_get_device(IF_TYPE_USB, 0, &dev));
77 	ut_asserteq_ptr(usb_dev, dev_get_parent(dev));
78 
79 	/* Check we have one block device for each mass storage device */
80 	ut_asserteq(6, count_blk_devices());
81 
82 	/* Now go around again, making sure the old devices were unbound */
83 	ut_assertok(usb_stop());
84 	ut_assertok(usb_init());
85 	ut_asserteq(6, count_blk_devices());
86 	ut_assertok(usb_stop());
87 
88 	return 0;
89 }
90 DM_TEST(dm_test_blk_usb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
91 
92 /* Test that we can find block devices without probing them */
93 static int dm_test_blk_find(struct unit_test_state *uts)
94 {
95 	struct udevice *blk, *dev;
96 
97 	ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
98 				      IF_TYPE_HOST, 1, 512, 2, &blk));
99 	ut_asserteq(-ENODEV, blk_find_device(IF_TYPE_HOST, 0, &dev));
100 	ut_assertok(blk_find_device(IF_TYPE_HOST, 1, &dev));
101 	ut_asserteq_ptr(blk, dev);
102 	ut_asserteq(false, device_active(dev));
103 
104 	/* Now activate it */
105 	ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
106 	ut_asserteq_ptr(blk, dev);
107 	ut_asserteq(true, device_active(dev));
108 
109 	return 0;
110 }
111 DM_TEST(dm_test_blk_find, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
112 
113 /* Test that block device numbering works as expected */
114 static int dm_test_blk_devnum(struct unit_test_state *uts)
115 {
116 	struct udevice *dev, *mmc_dev, *parent;
117 	int i;
118 
119 	/*
120 	 * Probe the devices, with the first one being probed last. This is the
121 	 * one with no alias / sequence numnber.
122 	 */
123 	ut_assertok(uclass_get_device(UCLASS_MMC, 1, &dev));
124 	ut_assertok(uclass_get_device(UCLASS_MMC, 2, &dev));
125 	ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
126 	for (i = 0; i < 3; i++) {
127 		struct blk_desc *desc;
128 
129 		/* Check that the bblock device is attached */
130 		ut_assertok(uclass_get_device_by_seq(UCLASS_MMC, i, &mmc_dev));
131 		ut_assertok(blk_find_device(IF_TYPE_MMC, i, &dev));
132 		parent = dev_get_parent(dev);
133 		ut_asserteq_ptr(parent, mmc_dev);
134 		ut_asserteq(trailing_strtol(mmc_dev->name), i);
135 
136 		/*
137 		 * Check that the block device devnum matches its parent's
138 		 * sequence number
139 		 */
140 		desc = dev_get_uclass_platdata(dev);
141 		ut_asserteq(desc->devnum, i);
142 	}
143 
144 	return 0;
145 }
146 DM_TEST(dm_test_blk_devnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
147 
148 /* Test that we can get a block from its parent */
149 static int dm_test_blk_get_from_parent(struct unit_test_state *uts)
150 {
151 	struct udevice *dev, *blk;
152 
153 	ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
154 	ut_assertok(blk_get_from_parent(dev, &blk));
155 
156 	ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
157 	ut_asserteq(-ENOTBLK, blk_get_from_parent(dev, &blk));
158 
159 	ut_assertok(uclass_get_device(UCLASS_GPIO, 0, &dev));
160 	ut_asserteq(-ENODEV, blk_get_from_parent(dev, &blk));
161 
162 	return 0;
163 }
164 DM_TEST(dm_test_blk_get_from_parent, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
165