test/dm/usb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <console.h>
   8 #include <dm.h>
   9 #include <part.h>
  10 #include <usb.h>
  11 #include <asm/io.h>
  12 #include <asm/state.h>
  13 #include <asm/test.h>
  14 #include <dm/device-internal.h>
  15 #include <dm/test.h>
  16 #include <dm/uclass-internal.h>
  17 #include <test/ut.h>
  18
  19 struct keyboard_test_data {
  20         const char modifiers;
  21         const char scancode;
  22         const char result[6];
  23 };
  24
  25 /* Test that sandbox USB works correctly */
  26 static int dm_test_usb_base(struct unit_test_state *uts)
  27 {
  28         struct udevice *bus;
  29
  30         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 0, &bus));
  31         ut_assertok(uclass_get_device(UCLASS_USB, 0, &bus));
  32         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 2, &bus));
  33
  34         return 0;
  35 }
  36 DM_TEST(dm_test_usb_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  37
  38 /*
  39  * Test that we can use the flash stick. This is more of a functional test. It
  40  * covers scanning the bug, setting up a hub and a flash stick and reading
  41  * data from the flash stick.
  42  */
  43 static int dm_test_usb_flash(struct unit_test_state *uts)
  44 {
  45         struct udevice *dev;
  46         struct blk_desc *dev_desc;
  47         char cmp[1024];
  48
  49         state_set_skip_delays(true);
  50         ut_assertok(usb_init());
  51         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
  52         ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc));
  53
  54         /* Read a few blocks and look for the string we expect */
  55         ut_asserteq(512, dev_desc->blksz);
  56         memset(cmp, '\0', sizeof(cmp));
  57         ut_asserteq(2, blk_dread(dev_desc, 0, 2, cmp));
  58         ut_assertok(strcmp(cmp, "this is a test"));
  59         ut_assertok(usb_stop());
  60
  61         return 0;
  62 }
  63 DM_TEST(dm_test_usb_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  64
  65 /* test that we can handle multiple storage devices */
  66 static int dm_test_usb_multi(struct unit_test_state *uts)
  67 {
  68         struct udevice *dev;
  69
  70         state_set_skip_delays(true);
  71         ut_assertok(usb_init());
  72         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
  73         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
  74         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
  75         ut_assertok(usb_stop());
  76
  77         return 0;
  78 }
  79 DM_TEST(dm_test_usb_multi, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  80
  81 static int count_usb_devices(void)
  82 {
  83         struct udevice *hub;
  84         struct uclass *uc;
  85         int count = 0;
  86         int ret;
  87
  88         ret = uclass_get(UCLASS_USB_HUB, &uc);
  89         if (ret)
  90                 return ret;
  91
  92         uclass_foreach_dev(hub, uc) {
  93                 struct udevice *dev;
  94
  95                 count++;
  96                 for (device_find_first_child(hub, &dev);
  97                      dev;
  98                      device_find_next_child(&dev)) {
  99                         count++;
 100                 }
 101         }
 102
 103         return count;
 104 }
 105
 106 /* test that no USB devices are found after we stop the stack */
 107 static int dm_test_usb_stop(struct unit_test_state *uts)
 108 {
 109         struct udevice *dev;
 110
 111         /* Scan and check that all devices are present */
 112         state_set_skip_delays(true);
 113         ut_assertok(usb_init());
 114         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev));
 115         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev));
 116         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev));
 117         ut_asserteq(6, count_usb_devices());
 118         ut_assertok(usb_stop());
 119         ut_asserteq(0, count_usb_devices());
 120
 121         return 0;
 122 }
 123 DM_TEST(dm_test_usb_stop, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 124
 125 /**
 126  * dm_test_usb_keyb() - test USB keyboard driver
 127  *
 128  * This test copies USB keyboard scan codes into the key buffer of the USB
 129  * keyboard emulation driver. These are picked up during emulated interrupts
 130  * by the USB keyboard driver and converted to characters and escape sequences.
 131  * The test then reads and verifies these characters and escape sequences from
 132  * the standard input.
 133  *
 134  * TODO: The following features are not yet tested:
 135  *
 136  * * LED status
 137  * * caps-lock
 138  * * num-lock
 139  * * numerical pad keys
 140  *
 141  * TODO: The following features are not yet implemented by the USB keyboard
 142  * driver and therefore not tested:
 143  *
 144  * * modifiers for non-alpha-numeric keys, e.g. <SHIFT><TAB> and <ALT><F4>
 145  * * some special keys, e.g. <PRINT>
 146  * * some modifiers, e.g. <ALT> and <META>
 147  * * alternative keyboard layouts
 148  *
 149  * @uts:        unit test state
 150  * Return:      0 on success
 151  */
 152 static int dm_test_usb_keyb(struct unit_test_state *uts)
 153 {
 154         struct udevice *dev;
 155         const struct keyboard_test_data *pos;
 156         const struct keyboard_test_data kbd_test_data[] = {
 157                 /* <A> */
 158                 {0x00, 0x04, "a"},
 159                 /* <B> */
 160                 {0x00, 0x05, "b"},
 161                 /* <C> */
 162                 {0x00, 0x06, "c"},
 163                 /* <D> */
 164                 {0x00, 0x07, "d"},
 165                 /* <E> */
 166                 {0x00, 0x08, "e"},
 167                 /* <F> */
 168                 {0x00, 0x09, "f"},
 169                 /* <G> */
 170                 {0x00, 0x0a, "g"},
 171                 /* <H> */
 172                 {0x00, 0x0b, "h"},
 173                 /* <I> */
 174                 {0x00, 0x0c, "i"},
 175                 /* <J> */
 176                 {0x00, 0x0d, "j"},
 177                 /* <K> */
 178                 {0x00, 0x0e, "k"},
 179                 /* <L> */
 180                 {0x00, 0x0f, "l"},
 181                 /* <M> */
 182                 {0x00, 0x10, "m"},
 183                 /* <N> */
 184                 {0x00, 0x11, "n"},
 185                 /* <O> */
 186                 {0x00, 0x12, "o"},
 187                 /* <P> */
 188                 {0x00, 0x13, "p"},
 189                 /* <Q> */
 190                 {0x00, 0x14, "q"},
 191                 /* <R> */
 192                 {0x00, 0x15, "r"},
 193                 /* <S> */
 194                 {0x00, 0x16, "s"},
 195                 /* <T> */
 196                 {0x00, 0x17, "t"},
 197                 /* <U> */
 198                 {0x00, 0x18, "u"},
 199                 /* <V> */
 200                 {0x00, 0x19, "v"},
 201                 /* <W> */
 202                 {0x00, 0x1a, "w"},
 203                 /* <X> */
 204                 {0x00, 0x1b, "x"},
 205                 /* <Y> */
 206                 {0x00, 0x1c, "y"},
 207                 /* <Z> */
 208                 {0x00, 0x1d, "z"},
 209
 210                 /* <LEFT-SHIFT><A> */
 211                 {0x02, 0x04, "A"},
 212                 /* <RIGHT-SHIFT><Z> */
 213                 {0x20, 0x1d, "Z"},
 214
 215                 /* <LEFT-CONTROL><A> */
 216                 {0x01, 0x04, "\x01"},
 217                 /* <RIGHT-CONTROL><Z> */
 218                 {0x10, 0x1d, "\x1a"},
 219
 220                 /* <1> */
 221                 {0x00, 0x1e, "1"},
 222                 /* <2> */
 223                 {0x00, 0x1f, "2"},
 224                 /* <3> */
 225                 {0x00, 0x20, "3"},
 226                 /* <4> */
 227                 {0x00, 0x21, "4"},
 228                 /* <5> */
 229                 {0x00, 0x22, "5"},
 230                 /* <6> */
 231                 {0x00, 0x23, "6"},
 232                 /* <7> */
 233                 {0x00, 0x24, "7"},
 234                 /* <8> */
 235                 {0x00, 0x25, "8"},
 236                 /* <9> */
 237                 {0x00, 0x26, "9"},
 238                 /* <0> */
 239                 {0x00, 0x27, "0"},
 240
 241                 /* <LEFT-SHIFT><1> */
 242                 {0x02, 0x1e, "!"},
 243                 /* <RIGHT-SHIFT><2> */
 244                 {0x20, 0x1f, "@"},
 245                 /* <LEFT-SHIFT><3> */
 246                 {0x02, 0x20, "#"},
 247                 /* <RIGHT-SHIFT><4> */
 248                 {0x20, 0x21, "$"},
 249                 /* <LEFT-SHIFT><5> */
 250                 {0x02, 0x22, "%"},
 251                 /* <RIGHT-SHIFT><6> */
 252                 {0x20, 0x23, "^"},
 253                 /* <LEFT-SHIFT><7> */
 254                 {0x02, 0x24, "&"},
 255                 /* <RIGHT-SHIFT><8> */
 256                 {0x20, 0x25, "*"},
 257                 /* <LEFT-SHIFT><9> */
 258                 {0x02, 0x26, "("},
 259                 /* <RIGHT-SHIFT><0> */
 260                 {0x20, 0x27, ")"},
 261
 262                 /* <ENTER> */
 263                 {0x00, 0x28, "\r"},
 264                 /* <ESCAPE> */
 265                 {0x00, 0x29, "\x1b"},
 266                 /* <BACKSPACE> */
 267                 {0x00, 0x2a, "\x08"},
 268                 /* <TAB> */
 269                 {0x00, 0x2b, "\x09"},
 270                 /* <SPACE> */
 271                 {0x00, 0x2c, " "},
 272                 /* <MINUS> */
 273                 {0x00, 0x2d, "-"},
 274                 /* <EQUAL> */
 275                 {0x00, 0x2e, "="},
 276                 /* <LEFT BRACE> */
 277                 {0x00, 0x2f, "["},
 278                 /* <RIGHT BRACE> */
 279                 {0x00, 0x30, "]"},
 280                 /* <BACKSLASH> */
 281                 {0x00, 0x31, "\\"},
 282                 /* <HASH-TILDE> */
 283                 {0x00, 0x32, "#"},
 284                 /* <SEMICOLON> */
 285                 {0x00, 0x33, ";"},
 286                 /* <APOSTROPHE> */
 287                 {0x00, 0x34, "'"},
 288                 /* <GRAVE> */
 289                 {0x00, 0x35, "`"},
 290                 /* <COMMA> */
 291                 {0x00, 0x36, ","},
 292                 /* <DOT> */
 293                 {0x00, 0x37, "."},
 294                 /* <SLASH> */
 295                 {0x00, 0x38, "/"},
 296
 297                 /* <LEFT-SHIFT><ENTER> */
 298                 {0x02, 0x28, "\r"},
 299                 /* <RIGHT-SHIFT><ESCAPE> */
 300                 {0x20, 0x29, "\x1b"},
 301                 /* <LEFT-SHIFT><BACKSPACE> */
 302                 {0x02, 0x2a, "\x08"},
 303                 /* <RIGHT-SHIFT><TAB> */
 304                 {0x20, 0x2b, "\x09"},
 305                 /* <LEFT-SHIFT><SPACE> */
 306                 {0x02, 0x2c, " "},
 307                 /* <MINUS> */
 308                 {0x20, 0x2d, "_"},
 309                 /* <LEFT-SHIFT><EQUAL> */
 310                 {0x02, 0x2e, "+"},
 311                 /* <RIGHT-SHIFT><LEFT BRACE> */
 312                 {0x20, 0x2f, "{"},
 313                 /* <LEFT-SHIFT><RIGHT BRACE> */
 314                 {0x02, 0x30, "}"},
 315                 /* <RIGHT-SHIFT><BACKSLASH> */
 316                 {0x20, 0x31, "|"},
 317                 /* <LEFT-SHIFT><HASH-TILDE> */
 318                 {0x02, 0x32, "~"},
 319                 /* <RIGHT-SHIFT><SEMICOLON> */
 320                 {0x20, 0x33, ":"},
 321                 /* <LEFT-SHIFT><APOSTROPHE> */
 322                 {0x02, 0x34, "\""},
 323                 /* <RIGHT-SHIFT><GRAVE> */
 324                 {0x20, 0x35, "~"},
 325                 /* <LEFT-SHIFT><COMMA> */
 326                 {0x02, 0x36, "<"},
 327                 /* <RIGHT-SHIFT><DOT> */
 328                 {0x20, 0x37, ">"},
 329                 /* <LEFT-SHIFT><SLASH> */
 330                 {0x02, 0x38, "?"},
 331 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS
 332                 /* <F1> */
 333                 {0x00, 0x3a, "\x1bOP"},
 334                 /* <F2> */
 335                 {0x00, 0x3b, "\x1bOQ"},
 336                 /* <F3> */
 337                 {0x00, 0x3c, "\x1bOR"},
 338                 /* <F4> */
 339                 {0x00, 0x3d, "\x1bOS"},
 340                 /* <F5> */
 341                 {0x00, 0x3e, "\x1b[15~"},
 342                 /* <F6> */
 343                 {0x00, 0x3f, "\x1b[17~"},
 344                 /* <F7> */
 345                 {0x00, 0x40, "\x1b[18~"},
 346                 /* <F8> */
 347                 {0x00, 0x41, "\x1b[19~"},
 348                 /* <F9> */
 349                 {0x00, 0x42, "\x1b[20~"},
 350                 /* <F10> */
 351                 {0x00, 0x43, "\x1b[21~"},
 352                 /* <F11> */
 353                 {0x00, 0x44, "\x1b[23~"},
 354                 /* <F12> */
 355                 {0x00, 0x45, "\x1b[24~"},
 356                 /* <INSERT> */
 357                 {0x00, 0x49, "\x1b[2~"},
 358                 /* <HOME> */
 359                 {0x00, 0x4a, "\x1b[H"},
 360                 /* <PAGE UP> */
 361                 {0x00, 0x4b, "\x1b[5~"},
 362                 /* <DELETE> */
 363                 {0x00, 0x4c, "\x1b[3~"},
 364                 /* <END> */
 365                 {0x00, 0x4d, "\x1b[F"},
 366                 /* <PAGE DOWN> */
 367                 {0x00, 0x4e, "\x1b[6~"},
 368                 /* <RIGHT> */
 369                 {0x00, 0x4f, "\x1b[C"},
 370                 /* <LEFT> */
 371                 {0x00, 0x50, "\x1b[D"},
 372                 /* <DOWN> */
 373                 {0x00, 0x51, "\x1b[B"},
 374                 /* <UP> */
 375                 {0x00, 0x52, "\x1b[A"},
 376 #endif /* CONFIG_USB_KEYBOARD_FN_KEYS */
 377
 378                 /* End of list */
 379                 {0x00, 0x00, "\0"}
 380         };
 381
 382
 383         state_set_skip_delays(true);
 384         ut_assertok(usb_init());
 385
 386         /* Initially there should be no characters */
 387         ut_asserteq(0, tstc());
 388
 389         ut_assertok(uclass_get_device_by_name(UCLASS_USB_EMUL, "keyb@3",
 390                                               &dev));
 391
 392         /*
 393          * Add scan codes to the USB keyboard buffer. They should appear as
 394          * corresponding characters and escape sequences in stdin.
 395          */
 396         for (pos = kbd_test_data; pos->scancode; ++pos) {
 397                 const char *c;
 398                 char scancodes[USB_KBD_BOOT_REPORT_SIZE] = {0};
 399
 400                 scancodes[0] = pos->modifiers;
 401                 scancodes[2] = pos->scancode;
 402
 403                 ut_assertok(sandbox_usb_keyb_add_string(dev, scancodes));
 404
 405                 for (c = pos->result; *c; ++c) {
 406                         ut_asserteq(1, tstc());
 407                         ut_asserteq(*c, getc());
 408                 }
 409                 ut_asserteq(0, tstc());
 410         }
 411         ut_assertok(usb_stop());
 412
 413         return 0;
 414 }
 415 DM_TEST(dm_test_usb_keyb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);