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dm: usb: Add tests for the USB uclass

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This adds a simple test for probing and a functional test using the flash
stick emulator, which tests a large chunk of the USB stack.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass
2015-03-25 12:23:05 -06:00
parent 57f54d55bd
commit e00cb2232b
4 changed files with 95 additions and 0 deletions
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test/dm/usb.c Normal file
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/*
* Copyright (C) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <usb.h>
#include <asm/io.h>
#include <dm/test.h>
#include <dm/ut.h>
/* Test that sandbox USB works correctly */
static int dm_test_usb_base(struct dm_test_state *dms)
{
struct udevice *bus;
ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 0, &bus));
ut_assertok(uclass_get_device(UCLASS_USB, 0, &bus));
ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 2, &bus));
return 0;
}
DM_TEST(dm_test_usb_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/*
* Test that we can use the flash stick. This is more of a functional test. It
* covers scanning the bug, setting up a hub and a flash stick and reading
* data from the flash stick.
*/
static int dm_test_usb_flash(struct dm_test_state *dms)
{
struct udevice *dev;
block_dev_desc_t *dev_desc;
char cmp[1024];
ut_assertok(usb_init());
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
ut_assertok(get_device("usb", "0", &dev_desc));
/* Read a few blocks and look for the string we expect */
ut_asserteq(512, dev_desc->blksz);
memset(cmp, '\0', sizeof(cmp));
ut_asserteq(2, dev_desc->block_read(dev_desc->dev, 0, 2, cmp));
ut_assertok(strcmp(cmp, "this is a test"));
return 0;
}
DM_TEST(dm_test_usb_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);