xref: /openbmc/u-boot/test/dm/mailbox.c (revision 8797b2ca)
1 /*
2  * Copyright (c) 2016, NVIDIA CORPORATION.
3  *
4  * SPDX-License-Identifier: GPL-2.0
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <dm/test.h>
10 #include <asm/mbox.h>
11 #include <test/ut.h>
12 
13 static int dm_test_mailbox(struct unit_test_state *uts)
14 {
15 	struct udevice *dev;
16 	uint32_t msg;
17 
18 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "mbox-test", &dev));
19 	ut_assertok(sandbox_mbox_test_get(dev));
20 
21 	ut_asserteq(-ETIMEDOUT, sandbox_mbox_test_recv(dev, &msg));
22 	ut_assertok(sandbox_mbox_test_send(dev, 0xaaff9955UL));
23 	ut_assertok(sandbox_mbox_test_recv(dev, &msg));
24 	ut_asserteq(msg, 0xaaff9955UL ^ SANDBOX_MBOX_PING_XOR);
25 	ut_asserteq(-ETIMEDOUT, sandbox_mbox_test_recv(dev, &msg));
26 
27 	ut_assertok(sandbox_mbox_test_free(dev));
28 
29 	return 0;
30 }
31 DM_TEST(dm_test_mailbox, DM_TESTF_SCAN_FDT);
32