test/dm/usb.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Google, Inc
  */

 #include <common.h>
 #include <console.h>
 #include <dm.h>
 #include <part.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/test.h>
 #include <test/ut.h>

 struct keyboard_test_data {
 	const char modifiers;
 	const char scancode;
 	const char result[6];
 };

 /* 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, UT_TESTF_SCAN_PDATA | UT_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 blk_desc *dev_desc, *chk;
 	struct udevice *dev, *blk;
 	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));
 	chk = blk_get_by_device(dev);
 	ut_asserteq_ptr(chk, dev_desc);

 	ut_assertok(device_find_first_child_by_uclass(dev, UCLASS_BLK, &blk));
 	ut_asserteq_ptr(chk, blk_get_by_device(dev));

 	/* 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_read(blk, 0, 2, cmp));
 	ut_asserteq_str("this is a test", cmp);

 	strcpy(cmp, "another test");
 	ut_asserteq(1, blk_write(blk, 1, 1, cmp));

 	memset(cmp, '\0', sizeof(cmp));
 	ut_asserteq(2, blk_read(blk, 0, 2, cmp));
 	ut_asserteq_str("this is a test", cmp);
 	ut_asserteq_str("another test", cmp + 512);

 	memset(cmp, '\0', sizeof(cmp));
 	ut_asserteq(1, blk_write(blk, 1, 1, cmp));

 	memset(cmp, '\0', sizeof(cmp));
 	ut_asserteq(2, blk_read(blk, 0, 2, cmp));
 	ut_asserteq_str("this is a test", cmp);
 	ut_asserteq_str("", cmp + 512);

 	ut_assertok(usb_stop());

 	return 0;
 }
 DM_TEST(dm_test_usb_flash, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);

 /* test that we have an associated ofnode with the usb device */
 static int dm_test_usb_fdt_node(struct unit_test_state *uts)
 {
 	struct udevice *dev;
 	ofnode node;

 	state_set_skip_delays(true);
 	ut_assertok(usb_init());
 	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
 	node = ofnode_path("/usb@1/hub/usbstor@1");
 	ut_asserteq(1, ofnode_equal(node, dev_ofnode(dev)));
 	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
 	ut_asserteq(1, ofnode_equal(ofnode_null(), dev_ofnode(dev)));
 	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
 	node = ofnode_path("/usb@1/hub/usbstor@3");
 	ut_asserteq(1, ofnode_equal(node, dev_ofnode(dev)));
 	ut_assertok(usb_stop());

 	return 0;
 }
 DM_TEST(dm_test_usb_fdt_node, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);

 /**
  * dm_test_usb_keyb() - test USB keyboard driver
  *
  * This test copies USB keyboard scan codes into the key buffer of the USB
  * keyboard emulation driver. These are picked up during emulated interrupts
  * by the USB keyboard driver and converted to characters and escape sequences.
  * The test then reads and verifies these characters and escape sequences from
  * the standard input.
  *
  * TODO: The following features are not yet tested:
  *
  * * LED status
  * * caps-lock
  * * num-lock
  * * numerical pad keys
  *
  * TODO: The following features are not yet implemented by the USB keyboard
  * driver and therefore not tested:
  *
  * * modifiers for non-alpha-numeric keys, e.g. <SHIFT><TAB> and <ALT><F4>
  * * some special keys, e.g. <PRINT>
  * * some modifiers, e.g. <ALT> and <META>
  * * alternative keyboard layouts
  *
  * @uts:	unit test state
  * Return:	0 on success
  */
 static int dm_test_usb_keyb(struct unit_test_state *uts)
 {
 	struct udevice *dev;
 	const struct keyboard_test_data *pos;
 	const struct keyboard_test_data kbd_test_data[] = {
 		/* <A> */
 		{0x00, 0x04, "a"},
 		/* <B> */
 		{0x00, 0x05, "b"},
 		/* <C> */
 		{0x00, 0x06, "c"},
 		/* <D> */
 		{0x00, 0x07, "d"},
 		/* <E> */
 		{0x00, 0x08, "e"},
 		/* <F> */
 		{0x00, 0x09, "f"},
 		/* <G> */
 		{0x00, 0x0a, "g"},
 		/* <H> */
 		{0x00, 0x0b, "h"},
 		/* <I> */
 		{0x00, 0x0c, "i"},
 		/* <J> */
 		{0x00, 0x0d, "j"},
 		/* <K> */
 		{0x00, 0x0e, "k"},
 		/* <L> */
 		{0x00, 0x0f, "l"},
 		/* <M> */
 		{0x00, 0x10, "m"},
 		/* <N> */
 		{0x00, 0x11, "n"},
 		/* <O> */
 		{0x00, 0x12, "o"},
 		/* <P> */
 		{0x00, 0x13, "p"},
 		/* <Q> */
 		{0x00, 0x14, "q"},
 		/* <R> */
 		{0x00, 0x15, "r"},
 		/* <S> */
 		{0x00, 0x16, "s"},
 		/* <T> */
 		{0x00, 0x17, "t"},
 		/* <U> */
 		{0x00, 0x18, "u"},
 		/* <V> */
 		{0x00, 0x19, "v"},
 		/* <W> */
 		{0x00, 0x1a, "w"},
 		/* <X> */
 		{0x00, 0x1b, "x"},
 		/* <Y> */
 		{0x00, 0x1c, "y"},
 		/* <Z> */
 		{0x00, 0x1d, "z"},

 		/* <LEFT-SHIFT><A> */
 		{0x02, 0x04, "A"},
 		/* <RIGHT-SHIFT><Z> */
 		{0x20, 0x1d, "Z"},

 		/* <LEFT-CONTROL><A> */
 		{0x01, 0x04, "\x01"},
 		/* <RIGHT-CONTROL><Z> */
 		{0x10, 0x1d, "\x1a"},

 		/* <1> */
 		{0x00, 0x1e, "1"},
 		/* <2> */
 		{0x00, 0x1f, "2"},
 		/* <3> */
 		{0x00, 0x20, "3"},
 		/* <4> */
 		{0x00, 0x21, "4"},
 		/* <5> */
 		{0x00, 0x22, "5"},
 		/* <6> */
 		{0x00, 0x23, "6"},
 		/* <7> */
 		{0x00, 0x24, "7"},
 		/* <8> */
 		{0x00, 0x25, "8"},
 		/* <9> */
 		{0x00, 0x26, "9"},
 		/* <0> */
 		{0x00, 0x27, "0"},

 		/* <LEFT-SHIFT><1> */
 		{0x02, 0x1e, "!"},
 		/* <RIGHT-SHIFT><2> */
 		{0x20, 0x1f, "@"},
 		/* <LEFT-SHIFT><3> */
 		{0x02, 0x20, "#"},
 		/* <RIGHT-SHIFT><4> */
 		{0x20, 0x21, "$"},
 		/* <LEFT-SHIFT><5> */
 		{0x02, 0x22, "%"},
 		/* <RIGHT-SHIFT><6> */
 		{0x20, 0x23, "^"},
 		/* <LEFT-SHIFT><7> */
 		{0x02, 0x24, "&"},
 		/* <RIGHT-SHIFT><8> */
 		{0x20, 0x25, "*"},
 		/* <LEFT-SHIFT><9> */
 		{0x02, 0x26, "("},
 		/* <RIGHT-SHIFT><0> */
 		{0x20, 0x27, ")"},

 		/* <ENTER> */
 		{0x00, 0x28, "\r"},
 		/* <ESCAPE> */
 		{0x00, 0x29, "\x1b"},
 		/* <BACKSPACE> */
 		{0x00, 0x2a, "\x08"},
 		/* <TAB> */
 		{0x00, 0x2b, "\x09"},
 		/* <SPACE> */
 		{0x00, 0x2c, " "},
 		/* <MINUS> */
 		{0x00, 0x2d, "-"},
 		/* <EQUAL> */
 		{0x00, 0x2e, "="},
 		/* <LEFT BRACE> */
 		{0x00, 0x2f, "["},
 		/* <RIGHT BRACE> */
 		{0x00, 0x30, "]"},
 		/* <BACKSLASH> */
 		{0x00, 0x31, "\\"},
 		/* <HASH-TILDE> */
 		{0x00, 0x32, "#"},
 		/* <SEMICOLON> */
 		{0x00, 0x33, ";"},
 		/* <APOSTROPHE> */
 		{0x00, 0x34, "'"},
 		/* <GRAVE> */
 		{0x00, 0x35, "`"},
 		/* <COMMA> */
 		{0x00, 0x36, ","},
 		/* <DOT> */
 		{0x00, 0x37, "."},
 		/* <SLASH> */
 		{0x00, 0x38, "/"},

 		/* <LEFT-SHIFT><ENTER> */
 		{0x02, 0x28, "\r"},
 		/* <RIGHT-SHIFT><ESCAPE> */
 		{0x20, 0x29, "\x1b"},
 		/* <LEFT-SHIFT><BACKSPACE> */
 		{0x02, 0x2a, "\x08"},
 		/* <RIGHT-SHIFT><TAB> */
 		{0x20, 0x2b, "\x09"},
 		/* <LEFT-SHIFT><SPACE> */
 		{0x02, 0x2c, " "},
 		/* <MINUS> */
 		{0x20, 0x2d, "_"},
 		/* <LEFT-SHIFT><EQUAL> */
 		{0x02, 0x2e, "+"},
 		/* <RIGHT-SHIFT><LEFT BRACE> */
 		{0x20, 0x2f, "{"},
 		/* <LEFT-SHIFT><RIGHT BRACE> */
 		{0x02, 0x30, "}"},
 		/* <RIGHT-SHIFT><BACKSLASH> */
 		{0x20, 0x31, "|"},
 		/* <LEFT-SHIFT><HASH-TILDE> */
 		{0x02, 0x32, "~"},
 		/* <RIGHT-SHIFT><SEMICOLON> */
 		{0x20, 0x33, ":"},
 		/* <LEFT-SHIFT><APOSTROPHE> */
 		{0x02, 0x34, "\""},
 		/* <RIGHT-SHIFT><GRAVE> */
 		{0x20, 0x35, "~"},
 		/* <LEFT-SHIFT><COMMA> */
 		{0x02, 0x36, "<"},
 		/* <RIGHT-SHIFT><DOT> */
 		{0x20, 0x37, ">"},
 		/* <LEFT-SHIFT><SLASH> */
 		{0x02, 0x38, "?"},
 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS
 		/* <F1> */
 		{0x00, 0x3a, "\x1bOP"},
 		/* <F2> */
 		{0x00, 0x3b, "\x1bOQ"},
 		/* <F3> */
 		{0x00, 0x3c, "\x1bOR"},
 		/* <F4> */
 		{0x00, 0x3d, "\x1bOS"},
 		/* <F5> */
 		{0x00, 0x3e, "\x1b[15~"},
 		/* <F6> */
 		{0x00, 0x3f, "\x1b[17~"},
 		/* <F7> */
 		{0x00, 0x40, "\x1b[18~"},
 		/* <F8> */
 		{0x00, 0x41, "\x1b[19~"},
 		/* <F9> */
 		{0x00, 0x42, "\x1b[20~"},
 		/* <F10> */
 		{0x00, 0x43, "\x1b[21~"},
 		/* <F11> */
 		{0x00, 0x44, "\x1b[23~"},
 		/* <F12> */
 		{0x00, 0x45, "\x1b[24~"},
 		/* <INSERT> */
 		{0x00, 0x49, "\x1b[2~"},
 		/* <HOME> */
 		{0x00, 0x4a, "\x1b[H"},
 		/* <PAGE UP> */
 		{0x00, 0x4b, "\x1b[5~"},
 		/* <DELETE> */
 		{0x00, 0x4c, "\x1b[3~"},
 		/* <END> */
 		{0x00, 0x4d, "\x1b[F"},
 		/* <PAGE DOWN> */
 		{0x00, 0x4e, "\x1b[6~"},
 		/* <RIGHT> */
 		{0x00, 0x4f, "\x1b[C"},
 		/* <LEFT> */
 		{0x00, 0x50, "\x1b[D"},
 		/* <DOWN> */
 		{0x00, 0x51, "\x1b[B"},
 		/* <UP> */
 		{0x00, 0x52, "\x1b[A"},
 #endif /* CONFIG_USB_KEYBOARD_FN_KEYS */

 		/* End of list */
 		{0x00, 0x00, "\0"}
 	};


 	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@3",
 					      &dev));

 	/*
 	 * Add scan codes to the USB keyboard buffer. They should appear as
 	 * corresponding characters and escape sequences in stdin.
 	 */
 	for (pos = kbd_test_data; pos->scancode; ++pos) {
 		const char *c;
 		char scancodes[USB_KBD_BOOT_REPORT_SIZE] = {0};

 		scancodes[0] = pos->modifiers;
 		scancodes[2] = pos->scancode;

 		ut_assertok(sandbox_usb_keyb_add_string(dev, scancodes));

 		for (c = pos->result; *c; ++c) {
 			ut_asserteq(1, tstc());
 			ut_asserteq(*c, getchar());
 		}
 		ut_asserteq(0, tstc());
 	}
 	ut_assertok(usb_stop());

 	return 0;
 }
 DM_TEST(dm_test_usb_keyb, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright (C) 2015 Google, Inc
	*/

	#include <common.h>
	#include <console.h>
	#include <dm.h>
	#include <part.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/test.h>
	#include <test/ut.h>

	struct keyboard_test_data {
	const char modifiers;
	const char scancode;
	const char result[6];
	};

	/* 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, UT_TESTF_SCAN_PDATA \| UT_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 blk_desc dev_desc, chk;
	struct udevice dev, blk;
	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));
	chk = blk_get_by_device(dev);
	ut_asserteq_ptr(chk, dev_desc);

	ut_assertok(device_find_first_child_by_uclass(dev, UCLASS_BLK, &blk));
	ut_asserteq_ptr(chk, blk_get_by_device(dev));

	/* 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_read(blk, 0, 2, cmp));
	ut_asserteq_str("this is a test", cmp);

	strcpy(cmp, "another test");
	ut_asserteq(1, blk_write(blk, 1, 1, cmp));

	memset(cmp, '\0', sizeof(cmp));
	ut_asserteq(2, blk_read(blk, 0, 2, cmp));
	ut_asserteq_str("this is a test", cmp);
	ut_asserteq_str("another test", cmp + 512);

	memset(cmp, '\0', sizeof(cmp));
	ut_asserteq(1, blk_write(blk, 1, 1, cmp));

	memset(cmp, '\0', sizeof(cmp));
	ut_asserteq(2, blk_read(blk, 0, 2, cmp));
	ut_asserteq_str("this is a test", cmp);
	ut_asserteq_str("", cmp + 512);

	ut_assertok(usb_stop());

	return 0;
	}
	DM_TEST(dm_test_usb_flash, UT_TESTF_SCAN_PDATA \| UT_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, UT_TESTF_SCAN_PDATA \| UT_TESTF_SCAN_FDT);

	/* test that we have an associated ofnode with the usb device */
	static int dm_test_usb_fdt_node(struct unit_test_state *uts)
	{
	struct udevice *dev;
	ofnode node;

	state_set_skip_delays(true);
	ut_assertok(usb_init());
	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
	node = ofnode_path("/usb@1/hub/usbstor@1");
	ut_asserteq(1, ofnode_equal(node, dev_ofnode(dev)));
	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
	ut_asserteq(1, ofnode_equal(ofnode_null(), dev_ofnode(dev)));
	ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
	node = ofnode_path("/usb@1/hub/usbstor@3");
	ut_asserteq(1, ofnode_equal(node, dev_ofnode(dev)));
	ut_assertok(usb_stop());

	return 0;
	}
	DM_TEST(dm_test_usb_fdt_node, UT_TESTF_SCAN_PDATA \| UT_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, UT_TESTF_SCAN_PDATA \| UT_TESTF_SCAN_FDT);

	/**
	* dm_test_usb_keyb() - test USB keyboard driver
	*
	* This test copies USB keyboard scan codes into the key buffer of the USB
	* keyboard emulation driver. These are picked up during emulated interrupts
	* by the USB keyboard driver and converted to characters and escape sequences.
	* The test then reads and verifies these characters and escape sequences from
	* the standard input.
	*
	* TODO: The following features are not yet tested:
	*
	* * LED status
	* * caps-lock
	* * num-lock
	* * numerical pad keys
	*
	* TODO: The following features are not yet implemented by the USB keyboard
	* driver and therefore not tested:
	*
	* * modifiers for non-alpha-numeric keys, e.g. <SHIFT><TAB> and <ALT><F4>
	* * some special keys, e.g. <PRINT>
	* * some modifiers, e.g. <ALT> and <META>
	* * alternative keyboard layouts
	*
	* @uts: unit test state
	* Return: 0 on success
	*/
	static int dm_test_usb_keyb(struct unit_test_state *uts)
	{
	struct udevice *dev;
	const struct keyboard_test_data *pos;
	const struct keyboard_test_data kbd_test_data[] = {
	/* <A> */
	{0x00, 0x04, "a"},
	/* <B> */
	{0x00, 0x05, "b"},
	/* <C> */
	{0x00, 0x06, "c"},
	/* <D> */
	{0x00, 0x07, "d"},
	/* <E> */
	{0x00, 0x08, "e"},
	/* <F> */
	{0x00, 0x09, "f"},
	/* <G> */
	{0x00, 0x0a, "g"},
	/* <H> */
	{0x00, 0x0b, "h"},
	/* <I> */
	{0x00, 0x0c, "i"},
	/* <J> */
	{0x00, 0x0d, "j"},
	/* <K> */
	{0x00, 0x0e, "k"},
	/* <L> */
	{0x00, 0x0f, "l"},
	/* <M> */
	{0x00, 0x10, "m"},
	/* <N> */
	{0x00, 0x11, "n"},
	/* <O> */
	{0x00, 0x12, "o"},
	/* <P> */
	{0x00, 0x13, "p"},
	/* <Q> */
	{0x00, 0x14, "q"},
	/* <R> */
	{0x00, 0x15, "r"},
	/* <S> */
	{0x00, 0x16, "s"},
	/* <T> */
	{0x00, 0x17, "t"},
	/* <U> */
	{0x00, 0x18, "u"},
	/* <V> */
	{0x00, 0x19, "v"},
	/* <W> */
	{0x00, 0x1a, "w"},
	/* <X> */
	{0x00, 0x1b, "x"},
	/* <Y> */
	{0x00, 0x1c, "y"},
	/* <Z> */
	{0x00, 0x1d, "z"},

	/* <LEFT-SHIFT><A> */
	{0x02, 0x04, "A"},
	/* <RIGHT-SHIFT><Z> */
	{0x20, 0x1d, "Z"},

	/* <LEFT-CONTROL><A> */
	{0x01, 0x04, "\x01"},
	/* <RIGHT-CONTROL><Z> */
	{0x10, 0x1d, "\x1a"},

	/* <1> */
	{0x00, 0x1e, "1"},
	/* <2> */
	{0x00, 0x1f, "2"},
	/* <3> */
	{0x00, 0x20, "3"},
	/* <4> */
	{0x00, 0x21, "4"},
	/* <5> */
	{0x00, 0x22, "5"},
	/* <6> */
	{0x00, 0x23, "6"},
	/* <7> */
	{0x00, 0x24, "7"},
	/* <8> */
	{0x00, 0x25, "8"},
	/* <9> */
	{0x00, 0x26, "9"},
	/* <0> */
	{0x00, 0x27, "0"},

	/* <LEFT-SHIFT><1> */
	{0x02, 0x1e, "!"},
	/* <RIGHT-SHIFT><2> */
	{0x20, 0x1f, "@"},
	/* <LEFT-SHIFT><3> */
	{0x02, 0x20, "#"},
	/* <RIGHT-SHIFT><4> */
	{0x20, 0x21, "$"},
	/* <LEFT-SHIFT><5> */
	{0x02, 0x22, "%"},
	/* <RIGHT-SHIFT><6> */
	{0x20, 0x23, "^"},
	/* <LEFT-SHIFT><7> */
	{0x02, 0x24, "&"},
	/* <RIGHT-SHIFT><8> */
	{0x20, 0x25, "*"},
	/* <LEFT-SHIFT><9> */
	{0x02, 0x26, "("},
	/* <RIGHT-SHIFT><0> */
	{0x20, 0x27, ")"},

	/* <ENTER> */
	{0x00, 0x28, "\r"},
	/* <ESCAPE> */
	{0x00, 0x29, "\x1b"},
	/* <BACKSPACE> */
	{0x00, 0x2a, "\x08"},
	/* <TAB> */
	{0x00, 0x2b, "\x09"},
	/* <SPACE> */
	{0x00, 0x2c, " "},
	/* <MINUS> */
	{0x00, 0x2d, "-"},
	/* <EQUAL> */
	{0x00, 0x2e, "="},
	/* <LEFT BRACE> */
	{0x00, 0x2f, "["},
	/* <RIGHT BRACE> */
	{0x00, 0x30, "]"},
	/* <BACKSLASH> */
	{0x00, 0x31, "\\"},
	/* <HASH-TILDE> */
	{0x00, 0x32, "#"},
	/* <SEMICOLON> */
	{0x00, 0x33, ";"},
	/* <APOSTROPHE> */
	{0x00, 0x34, "'"},
	/* <GRAVE> */
	{0x00, 0x35, "`"},
	/* <COMMA> */
	{0x00, 0x36, ","},
	/* <DOT> */
	{0x00, 0x37, "."},
	/* <SLASH> */
	{0x00, 0x38, "/"},

	/* <LEFT-SHIFT><ENTER> */
	{0x02, 0x28, "\r"},
	/* <RIGHT-SHIFT><ESCAPE> */
	{0x20, 0x29, "\x1b"},
	/* <LEFT-SHIFT><BACKSPACE> */
	{0x02, 0x2a, "\x08"},
	/* <RIGHT-SHIFT><TAB> */
	{0x20, 0x2b, "\x09"},
	/* <LEFT-SHIFT><SPACE> */
	{0x02, 0x2c, " "},
	/* <MINUS> */
	{0x20, 0x2d, "_"},
	/* <LEFT-SHIFT><EQUAL> */
	{0x02, 0x2e, "+"},
	/* <RIGHT-SHIFT><LEFT BRACE> */
	{0x20, 0x2f, "{"},
	/* <LEFT-SHIFT><RIGHT BRACE> */
	{0x02, 0x30, "}"},
	/* <RIGHT-SHIFT><BACKSLASH> */
	{0x20, 0x31, "\|"},
	/* <LEFT-SHIFT><HASH-TILDE> */
	{0x02, 0x32, "~"},
	/* <RIGHT-SHIFT><SEMICOLON> */
	{0x20, 0x33, ":"},
	/* <LEFT-SHIFT><APOSTROPHE> */
	{0x02, 0x34, "\""},
	/* <RIGHT-SHIFT><GRAVE> */
	{0x20, 0x35, "~"},
	/* <LEFT-SHIFT><COMMA> */
	{0x02, 0x36, "<"},
	/* <RIGHT-SHIFT><DOT> */
	{0x20, 0x37, ">"},
	/* <LEFT-SHIFT><SLASH> */
	{0x02, 0x38, "?"},
	#ifdef CONFIG_USB_KEYBOARD_FN_KEYS
	/* <F1> */
	{0x00, 0x3a, "\x1bOP"},
	/* <F2> */
	{0x00, 0x3b, "\x1bOQ"},
	/* <F3> */
	{0x00, 0x3c, "\x1bOR"},
	/* <F4> */
	{0x00, 0x3d, "\x1bOS"},
	/* <F5> */
	{0x00, 0x3e, "\x1b[15~"},
	/* <F6> */
	{0x00, 0x3f, "\x1b[17~"},
	/* <F7> */
	{0x00, 0x40, "\x1b[18~"},
	/* <F8> */
	{0x00, 0x41, "\x1b[19~"},
	/* <F9> */
	{0x00, 0x42, "\x1b[20~"},
	/* <F10> */
	{0x00, 0x43, "\x1b[21~"},
	/* <F11> */
	{0x00, 0x44, "\x1b[23~"},
	/* <F12> */
	{0x00, 0x45, "\x1b[24~"},
	/* <INSERT> */
	{0x00, 0x49, "\x1b[2~"},
	/* <HOME> */
	{0x00, 0x4a, "\x1b[H"},
	/* <PAGE UP> */
	{0x00, 0x4b, "\x1b[5~"},
	/* <DELETE> */
	{0x00, 0x4c, "\x1b[3~"},
	/* <END> */
	{0x00, 0x4d, "\x1b[F"},
	/* <PAGE DOWN> */
	{0x00, 0x4e, "\x1b[6~"},
	/* <RIGHT> */
	{0x00, 0x4f, "\x1b[C"},
	/* <LEFT> */
	{0x00, 0x50, "\x1b[D"},
	/* <DOWN> */
	{0x00, 0x51, "\x1b[B"},
	/* <UP> */
	{0x00, 0x52, "\x1b[A"},
	#endif /* CONFIG_USB_KEYBOARD_FN_KEYS */

	/* End of list */
	{0x00, 0x00, "\0"}
	};


	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@3",
	&dev));

	/*
	* Add scan codes to the USB keyboard buffer. They should appear as
	* corresponding characters and escape sequences in stdin.
	*/
	for (pos = kbd_test_data; pos->scancode; ++pos) {
	const char *c;
	char scancodes[USB_KBD_BOOT_REPORT_SIZE] = {0};

	scancodes[0] = pos->modifiers;
	scancodes[2] = pos->scancode;

	ut_assertok(sandbox_usb_keyb_add_string(dev, scancodes));

	for (c = pos->result; *c; ++c) {
	ut_asserteq(1, tstc());
	ut_asserteq(*c, getchar());
	}
	ut_asserteq(0, tstc());
	}
	ut_assertok(usb_stop());

	return 0;
	}
	DM_TEST(dm_test_usb_keyb, UT_TESTF_SCAN_PDATA \| UT_TESTF_SCAN_FDT);