xref: /openbmc/u-boot/test/dm/blk.c (revision b616d9b0)
1 /*
2  * Copyright (C) 2015 Google, Inc
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <usb.h>
10 #include <asm/state.h>
11 #include <dm/test.h>
12 #include <test/ut.h>
13 
14 DECLARE_GLOBAL_DATA_PTR;
15 
16 /* Test that block devices can be created */
17 static int dm_test_blk_base(struct unit_test_state *uts)
18 {
19 	struct udevice *blk, *usb_blk, *dev;
20 
21 	/* Make sure there are no block devices */
22 	ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_BLK, 0, &blk));
23 
24 	/* Create two, one the parent of the other */
25 	ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
26 				      IF_TYPE_HOST, 1, 512, 1024, &blk));
27 	ut_assertok(blk_create_device(blk, "usb_storage_blk", "test",
28 				      IF_TYPE_USB, 3, 512, 1024, &usb_blk));
29 
30 	/* Check we can find them */
31 	ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_HOST, 0, &dev));
32 	ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
33 	ut_asserteq_ptr(blk, dev);
34 
35 	ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_USB, 0, &dev));
36 	ut_assertok(blk_get_device(IF_TYPE_USB, 3, &dev));
37 	ut_asserteq_ptr(usb_blk, dev);
38 
39 	/* Check we can iterate */
40 	ut_assertok(blk_first_device(IF_TYPE_HOST, &dev));
41 	ut_asserteq_ptr(blk, dev);
42 	ut_asserteq(-ENODEV, blk_next_device(&dev));
43 
44 	ut_assertok(blk_first_device(IF_TYPE_USB, &dev));
45 	ut_asserteq_ptr(usb_blk, dev);
46 	ut_asserteq(-ENODEV, blk_next_device(&dev));
47 
48 	return 0;
49 }
50 DM_TEST(dm_test_blk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
51 
52 static int count_blk_devices(void)
53 {
54 	struct udevice *blk;
55 	struct uclass *uc;
56 	int count = 0;
57 	int ret;
58 
59 	ret = uclass_get(UCLASS_BLK, &uc);
60 	if (ret)
61 		return ret;
62 
63 	uclass_foreach_dev(blk, uc)
64 		count++;
65 
66 	return count;
67 }
68 
69 /* Test that block devices work correctly with USB */
70 static int dm_test_blk_usb(struct unit_test_state *uts)
71 {
72 	struct udevice *usb_dev, *dev;
73 	struct blk_desc *dev_desc;
74 
75 	/* Get a flash device */
76 	state_set_skip_delays(true);
77 	ut_assertok(usb_init());
78 	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &usb_dev));
79 	ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc));
80 
81 	/* The parent should be a block device */
82 	ut_assertok(blk_get_device(IF_TYPE_USB, 0, &dev));
83 	ut_asserteq_ptr(usb_dev, dev_get_parent(dev));
84 
85 	/* Check we have one block device for each mass storage device */
86 	ut_asserteq(4, count_blk_devices());
87 
88 	/* Now go around again, making sure the old devices were unbound */
89 	ut_assertok(usb_stop());
90 	ut_assertok(usb_init());
91 	ut_asserteq(4, count_blk_devices());
92 	ut_assertok(usb_stop());
93 
94 	return 0;
95 }
96 DM_TEST(dm_test_blk_usb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
97