u-boot/test/dm/usb.c
Bin Meng f4d4f7d41c test: dm: usb: Update test cases for USB
Now that we have changed to remove all devices under the root hub in
usb_stop(), and corrected the USB emulator select logic, it makes no
sense to do various tests based on 'usb tree' output since the order
of devices is no longer fixed. Remove these USB test cases related
to 'usb tree'.

For the USB remove test, ideally we should remove an emulator device
node from the device tree, but this is so far not working. Change to
test the 'usb stop' only.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-10-01 16:32:51 +02:00

150 lines
3.7 KiB
C

/*
* Copyright (C) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <console.h>
#include <dm.h>
#include <usb.h>
#include <asm/io.h>
#include <asm/state.h>
#include <asm/test.h>
#include <dm/device-internal.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Test that sandbox USB works correctly */
static int dm_test_usb_base(struct unit_test_state *uts)
{
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 unit_test_state *uts)
{
struct udevice *dev;
struct blk_desc *dev_desc;
char cmp[1024];
state_set_skip_delays(true);
ut_assertok(usb_init());
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
ut_assertok(blk_get_device_by_str("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, blk_dread(dev_desc, 0, 2, cmp));
ut_assertok(strcmp(cmp, "this is a test"));
ut_assertok(usb_stop());
return 0;
}
DM_TEST(dm_test_usb_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* test that we can handle multiple storage devices */
static int dm_test_usb_multi(struct unit_test_state *uts)
{
struct udevice *dev;
state_set_skip_delays(true);
ut_assertok(usb_init());
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
ut_assertok(usb_stop());
return 0;
}
DM_TEST(dm_test_usb_multi, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
static int count_usb_devices(void)
{
struct udevice *hub;
struct uclass *uc;
int count = 0;
int ret;
ret = uclass_get(UCLASS_USB_HUB, &uc);
if (ret)
return ret;
uclass_foreach_dev(hub, uc) {
struct udevice *dev;
count++;
for (device_find_first_child(hub, &dev);
dev;
device_find_next_child(&dev)) {
count++;
}
}
return count;
}
/* test that no USB devices are found after we stop the stack */
static int dm_test_usb_stop(struct unit_test_state *uts)
{
struct udevice *dev;
/* Scan and check that all devices are present */
state_set_skip_delays(true);
ut_assertok(usb_init());
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
ut_asserteq(6, count_usb_devices());
ut_assertok(usb_stop());
ut_asserteq(0, count_usb_devices());
return 0;
}
DM_TEST(dm_test_usb_stop, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
static int dm_test_usb_keyb(struct unit_test_state *uts)
{
struct udevice *dev;
state_set_skip_delays(true);
ut_assertok(usb_init());
/* Initially there should be no characters */
ut_asserteq(0, tstc());
ut_assertok(uclass_get_device_by_name(UCLASS_USB_EMUL, "keyb",
&dev));
/*
* Add a string to the USB keyboard buffer - it should appear in
* stdin
*/
ut_assertok(sandbox_usb_keyb_add_string(dev, "ab"));
ut_asserteq(1, tstc());
ut_asserteq('a', getc());
ut_asserteq(1, tstc());
ut_asserteq('b', getc());
ut_asserteq(0, tstc());
ut_assertok(usb_stop());
return 0;
}
DM_TEST(dm_test_usb_keyb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);