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u-boot/test/dm/usb.c
Heinrich Schuchardt 12f1e7908a dm: test: usb: rework keyboard test 
Allow the unit test to pass full 8 byte scan code sequences to the USB
keyboard emulation driver and to parse multi-byte escape sequences.

The following features are not yet tested:

* LED status
* caps-lock
* num-lock
* numerical pad keys

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

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-11-25 13:28:53 +01:00

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