1 /* 2 * (C) Copyright 2001 3 * Denis Peter, MPL AG Switzerland 4 * 5 * Part of this source has been derived from the Linux USB 6 * project. 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 #include <common.h> 11 #include <console.h> 12 #include <dm.h> 13 #include <errno.h> 14 #include <malloc.h> 15 #include <memalign.h> 16 #include <stdio_dev.h> 17 #include <asm/byteorder.h> 18 19 #include <usb.h> 20 21 /* 22 * If overwrite_console returns 1, the stdin, stderr and stdout 23 * are switched to the serial port, else the settings in the 24 * environment are used 25 */ 26 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 27 extern int overwrite_console(void); 28 #else 29 int overwrite_console(void) 30 { 31 return 0; 32 } 33 #endif 34 35 /* Keyboard sampling rate */ 36 #define REPEAT_RATE 40 /* 40msec -> 25cps */ 37 #define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */ 38 39 #define NUM_LOCK 0x53 40 #define CAPS_LOCK 0x39 41 #define SCROLL_LOCK 0x47 42 43 /* Modifier bits */ 44 #define LEFT_CNTR (1 << 0) 45 #define LEFT_SHIFT (1 << 1) 46 #define LEFT_ALT (1 << 2) 47 #define LEFT_GUI (1 << 3) 48 #define RIGHT_CNTR (1 << 4) 49 #define RIGHT_SHIFT (1 << 5) 50 #define RIGHT_ALT (1 << 6) 51 #define RIGHT_GUI (1 << 7) 52 53 /* Size of the keyboard buffer */ 54 #define USB_KBD_BUFFER_LEN 0x20 55 56 /* Device name */ 57 #define DEVNAME "usbkbd" 58 59 /* Keyboard maps */ 60 static const unsigned char usb_kbd_numkey[] = { 61 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 62 '\r', 0x1b, '\b', '\t', ' ', '-', '=', '[', ']', 63 '\\', '#', ';', '\'', '`', ',', '.', '/' 64 }; 65 static const unsigned char usb_kbd_numkey_shifted[] = { 66 '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', 67 '\r', 0x1b, '\b', '\t', ' ', '_', '+', '{', '}', 68 '|', '~', ':', '"', '~', '<', '>', '?' 69 }; 70 71 static const unsigned char usb_kbd_num_keypad[] = { 72 '/', '*', '-', '+', '\r', 73 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 74 '.', 0, 0, 0, '=' 75 }; 76 77 static const u8 usb_special_keys[] = { 78 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS 79 '2', 'H', '5', '3', 'F', '6', 'C', 'D', 'B', 'A' 80 #else 81 'C', 'D', 'B', 'A' 82 #endif 83 }; 84 85 /* 86 * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this 87 * order. See usb_kbd_setled() function! 88 */ 89 #define USB_KBD_NUMLOCK (1 << 0) 90 #define USB_KBD_CAPSLOCK (1 << 1) 91 #define USB_KBD_SCROLLLOCK (1 << 2) 92 #define USB_KBD_CTRL (1 << 3) 93 94 #define USB_KBD_LEDMASK \ 95 (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK) 96 97 /* 98 * USB Keyboard reports are 8 bytes in boot protocol. 99 * Appendix B of HID Device Class Definition 1.11 100 */ 101 #define USB_KBD_BOOT_REPORT_SIZE 8 102 103 struct usb_kbd_pdata { 104 unsigned long intpipe; 105 int intpktsize; 106 int intinterval; 107 unsigned long last_report; 108 struct int_queue *intq; 109 110 uint32_t repeat_delay; 111 112 uint32_t usb_in_pointer; 113 uint32_t usb_out_pointer; 114 uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN]; 115 116 uint8_t *new; 117 uint8_t old[USB_KBD_BOOT_REPORT_SIZE]; 118 119 uint8_t flags; 120 }; 121 122 extern int __maybe_unused net_busy_flag; 123 124 /* The period of time between two calls of usb_kbd_testc(). */ 125 static unsigned long __maybe_unused kbd_testc_tms; 126 127 /* Puts character in the queue and sets up the in and out pointer. */ 128 static void usb_kbd_put_queue(struct usb_kbd_pdata *data, u8 c) 129 { 130 if (data->usb_in_pointer == USB_KBD_BUFFER_LEN - 1) { 131 /* Check for buffer full. */ 132 if (data->usb_out_pointer == 0) 133 return; 134 135 data->usb_in_pointer = 0; 136 } else { 137 /* Check for buffer full. */ 138 if (data->usb_in_pointer == data->usb_out_pointer - 1) 139 return; 140 141 data->usb_in_pointer++; 142 } 143 144 data->usb_kbd_buffer[data->usb_in_pointer] = c; 145 } 146 147 /* 148 * Set the LEDs. Since this is used in the irq routine, the control job is 149 * issued with a timeout of 0. This means, that the job is queued without 150 * waiting for job completion. 151 */ 152 static void usb_kbd_setled(struct usb_device *dev) 153 { 154 struct usb_interface *iface = &dev->config.if_desc[0]; 155 struct usb_kbd_pdata *data = dev->privptr; 156 ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN); 157 158 *leds = data->flags & USB_KBD_LEDMASK; 159 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 160 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, 161 0x200, iface->desc.bInterfaceNumber, leds, 1, 0); 162 } 163 164 #define CAPITAL_MASK 0x20 165 /* Translate the scancode in ASCII */ 166 static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode, 167 unsigned char modifier, int pressed) 168 { 169 uint8_t keycode = 0; 170 171 /* Key released */ 172 if (pressed == 0) { 173 data->repeat_delay = 0; 174 return 0; 175 } 176 177 if (pressed == 2) { 178 data->repeat_delay++; 179 if (data->repeat_delay < REPEAT_DELAY) 180 return 0; 181 182 data->repeat_delay = REPEAT_DELAY; 183 } 184 185 /* Alphanumeric values */ 186 if ((scancode > 3) && (scancode <= 0x1d)) { 187 keycode = scancode - 4 + 'a'; 188 189 if (data->flags & USB_KBD_CAPSLOCK) 190 keycode &= ~CAPITAL_MASK; 191 192 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) { 193 /* Handle CAPSLock + Shift pressed simultaneously */ 194 if (keycode & CAPITAL_MASK) 195 keycode &= ~CAPITAL_MASK; 196 else 197 keycode |= CAPITAL_MASK; 198 } 199 } 200 201 if ((scancode > 0x1d) && (scancode < 0x39)) { 202 /* Shift pressed */ 203 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) 204 keycode = usb_kbd_numkey_shifted[scancode - 0x1e]; 205 else 206 keycode = usb_kbd_numkey[scancode - 0x1e]; 207 } 208 209 /* Numeric keypad */ 210 if ((scancode >= 0x54) && (scancode <= 0x67)) 211 keycode = usb_kbd_num_keypad[scancode - 0x54]; 212 213 if (data->flags & USB_KBD_CTRL) 214 keycode = scancode - 0x3; 215 216 if (pressed == 1) { 217 if (scancode == NUM_LOCK) { 218 data->flags ^= USB_KBD_NUMLOCK; 219 return 1; 220 } 221 222 if (scancode == CAPS_LOCK) { 223 data->flags ^= USB_KBD_CAPSLOCK; 224 return 1; 225 } 226 if (scancode == SCROLL_LOCK) { 227 data->flags ^= USB_KBD_SCROLLLOCK; 228 return 1; 229 } 230 } 231 232 /* Report keycode if any */ 233 if (keycode) { 234 debug("%c", keycode); 235 usb_kbd_put_queue(data, keycode); 236 return 0; 237 } 238 239 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS 240 if (scancode < 0x3a || scancode > 0x52 || 241 scancode == 0x46 || scancode == 0x47) 242 return 1; 243 244 usb_kbd_put_queue(data, 0x1b); 245 if (scancode < 0x3e) { 246 /* F1 - F4 */ 247 usb_kbd_put_queue(data, 0x4f); 248 usb_kbd_put_queue(data, scancode - 0x3a + 'P'); 249 return 0; 250 } 251 usb_kbd_put_queue(data, '['); 252 if (scancode < 0x42) { 253 /* F5 - F8 */ 254 usb_kbd_put_queue(data, '1'); 255 if (scancode == 0x3e) 256 --scancode; 257 keycode = scancode - 0x3f + '7'; 258 } else if (scancode < 0x49) { 259 /* F9 - F12 */ 260 usb_kbd_put_queue(data, '2'); 261 if (scancode > 0x43) 262 ++scancode; 263 keycode = scancode - 0x42 + '0'; 264 } else { 265 /* 266 * INSERT, HOME, PAGE UP, DELETE, END, PAGE DOWN, 267 * RIGHT, LEFT, DOWN, UP 268 */ 269 keycode = usb_special_keys[scancode - 0x49]; 270 } 271 usb_kbd_put_queue(data, keycode); 272 if (scancode < 0x4f && scancode != 0x4a && scancode != 0x4d) 273 usb_kbd_put_queue(data, '~'); 274 return 0; 275 #else 276 /* Left, Right, Up, Down */ 277 if (scancode > 0x4e && scancode < 0x53) { 278 usb_kbd_put_queue(data, 0x1b); 279 usb_kbd_put_queue(data, '['); 280 usb_kbd_put_queue(data, usb_special_keys[scancode - 0x4f]); 281 return 0; 282 } 283 return 1; 284 #endif /* CONFIG_USB_KEYBOARD_FN_KEYS */ 285 } 286 287 static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up) 288 { 289 uint32_t res = 0; 290 struct usb_kbd_pdata *data = dev->privptr; 291 uint8_t *new; 292 uint8_t *old; 293 294 if (up) { 295 new = data->old; 296 old = data->new; 297 } else { 298 new = data->new; 299 old = data->old; 300 } 301 302 if ((old[i] > 3) && 303 (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) == 304 new + USB_KBD_BOOT_REPORT_SIZE)) { 305 res |= usb_kbd_translate(data, old[i], data->new[0], up); 306 } 307 308 return res; 309 } 310 311 /* Interrupt service routine */ 312 static int usb_kbd_irq_worker(struct usb_device *dev) 313 { 314 struct usb_kbd_pdata *data = dev->privptr; 315 int i, res = 0; 316 317 /* No combo key pressed */ 318 if (data->new[0] == 0x00) 319 data->flags &= ~USB_KBD_CTRL; 320 /* Left or Right Ctrl pressed */ 321 else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR)) 322 data->flags |= USB_KBD_CTRL; 323 324 for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) { 325 res |= usb_kbd_service_key(dev, i, 0); 326 res |= usb_kbd_service_key(dev, i, 1); 327 } 328 329 /* Key is still pressed */ 330 if ((data->new[2] > 3) && (data->old[2] == data->new[2])) 331 res |= usb_kbd_translate(data, data->new[2], data->new[0], 2); 332 333 if (res == 1) 334 usb_kbd_setled(dev); 335 336 memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE); 337 338 return 1; 339 } 340 341 /* Keyboard interrupt handler */ 342 static int usb_kbd_irq(struct usb_device *dev) 343 { 344 if ((dev->irq_status != 0) || 345 (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) { 346 debug("USB KBD: Error %lX, len %d\n", 347 dev->irq_status, dev->irq_act_len); 348 return 1; 349 } 350 351 return usb_kbd_irq_worker(dev); 352 } 353 354 /* Interrupt polling */ 355 static inline void usb_kbd_poll_for_event(struct usb_device *dev) 356 { 357 #if defined(CONFIG_SYS_USB_EVENT_POLL) 358 struct usb_kbd_pdata *data = dev->privptr; 359 360 /* Submit an interrupt transfer request */ 361 if (usb_int_msg(dev, data->intpipe, &data->new[0], 362 data->intpktsize, data->intinterval, true) >= 0) 363 usb_kbd_irq_worker(dev); 364 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) || \ 365 defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE) 366 #if defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) 367 struct usb_interface *iface; 368 struct usb_kbd_pdata *data = dev->privptr; 369 iface = &dev->config.if_desc[0]; 370 usb_get_report(dev, iface->desc.bInterfaceNumber, 371 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE); 372 if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) { 373 usb_kbd_irq_worker(dev); 374 #else 375 struct usb_kbd_pdata *data = dev->privptr; 376 if (poll_int_queue(dev, data->intq)) { 377 usb_kbd_irq_worker(dev); 378 /* We've consumed all queued int packets, create new */ 379 destroy_int_queue(dev, data->intq); 380 data->intq = create_int_queue(dev, data->intpipe, 1, 381 USB_KBD_BOOT_REPORT_SIZE, data->new, 382 data->intinterval); 383 #endif 384 data->last_report = get_timer(0); 385 /* Repeat last usb hid report every REPEAT_RATE ms for keyrepeat */ 386 } else if (data->last_report != -1 && 387 get_timer(data->last_report) > REPEAT_RATE) { 388 usb_kbd_irq_worker(dev); 389 data->last_report = get_timer(0); 390 } 391 #endif 392 } 393 394 /* test if a character is in the queue */ 395 static int usb_kbd_testc(struct stdio_dev *sdev) 396 { 397 struct stdio_dev *dev; 398 struct usb_device *usb_kbd_dev; 399 struct usb_kbd_pdata *data; 400 401 #ifdef CONFIG_CMD_NET 402 /* 403 * If net_busy_flag is 1, NET transfer is running, 404 * then we check key-pressed every second (first check may be 405 * less than 1 second) to improve TFTP booting performance. 406 */ 407 if (net_busy_flag && (get_timer(kbd_testc_tms) < CONFIG_SYS_HZ)) 408 return 0; 409 kbd_testc_tms = get_timer(0); 410 #endif 411 dev = stdio_get_by_name(DEVNAME); 412 usb_kbd_dev = (struct usb_device *)dev->priv; 413 data = usb_kbd_dev->privptr; 414 415 usb_kbd_poll_for_event(usb_kbd_dev); 416 417 return !(data->usb_in_pointer == data->usb_out_pointer); 418 } 419 420 /* gets the character from the queue */ 421 static int usb_kbd_getc(struct stdio_dev *sdev) 422 { 423 struct stdio_dev *dev; 424 struct usb_device *usb_kbd_dev; 425 struct usb_kbd_pdata *data; 426 427 dev = stdio_get_by_name(DEVNAME); 428 usb_kbd_dev = (struct usb_device *)dev->priv; 429 data = usb_kbd_dev->privptr; 430 431 while (data->usb_in_pointer == data->usb_out_pointer) 432 usb_kbd_poll_for_event(usb_kbd_dev); 433 434 if (data->usb_out_pointer == USB_KBD_BUFFER_LEN - 1) 435 data->usb_out_pointer = 0; 436 else 437 data->usb_out_pointer++; 438 439 return data->usb_kbd_buffer[data->usb_out_pointer]; 440 } 441 442 /* probes the USB device dev for keyboard type. */ 443 static int usb_kbd_probe_dev(struct usb_device *dev, unsigned int ifnum) 444 { 445 struct usb_interface *iface; 446 struct usb_endpoint_descriptor *ep; 447 struct usb_kbd_pdata *data; 448 449 if (dev->descriptor.bNumConfigurations != 1) 450 return 0; 451 452 iface = &dev->config.if_desc[ifnum]; 453 454 if (iface->desc.bInterfaceClass != USB_CLASS_HID) 455 return 0; 456 457 if (iface->desc.bInterfaceSubClass != USB_SUB_HID_BOOT) 458 return 0; 459 460 if (iface->desc.bInterfaceProtocol != USB_PROT_HID_KEYBOARD) 461 return 0; 462 463 if (iface->desc.bNumEndpoints != 1) 464 return 0; 465 466 ep = &iface->ep_desc[0]; 467 468 /* Check if endpoint 1 is interrupt endpoint */ 469 if (!(ep->bEndpointAddress & 0x80)) 470 return 0; 471 472 if ((ep->bmAttributes & 3) != 3) 473 return 0; 474 475 debug("USB KBD: found set protocol...\n"); 476 477 data = malloc(sizeof(struct usb_kbd_pdata)); 478 if (!data) { 479 printf("USB KBD: Error allocating private data\n"); 480 return 0; 481 } 482 483 /* Clear private data */ 484 memset(data, 0, sizeof(struct usb_kbd_pdata)); 485 486 /* allocate input buffer aligned and sized to USB DMA alignment */ 487 data->new = memalign(USB_DMA_MINALIGN, 488 roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN)); 489 490 /* Insert private data into USB device structure */ 491 dev->privptr = data; 492 493 /* Set IRQ handler */ 494 dev->irq_handle = usb_kbd_irq; 495 496 data->intpipe = usb_rcvintpipe(dev, ep->bEndpointAddress); 497 data->intpktsize = min(usb_maxpacket(dev, data->intpipe), 498 USB_KBD_BOOT_REPORT_SIZE); 499 data->intinterval = ep->bInterval; 500 data->last_report = -1; 501 502 /* We found a USB Keyboard, install it. */ 503 usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0); 504 505 debug("USB KBD: found set idle...\n"); 506 #if !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) && \ 507 !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE) 508 usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE / 4, 0); 509 #else 510 usb_set_idle(dev, iface->desc.bInterfaceNumber, 0, 0); 511 #endif 512 513 debug("USB KBD: enable interrupt pipe...\n"); 514 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE 515 data->intq = create_int_queue(dev, data->intpipe, 1, 516 USB_KBD_BOOT_REPORT_SIZE, data->new, 517 data->intinterval); 518 if (!data->intq) { 519 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) 520 if (usb_get_report(dev, iface->desc.bInterfaceNumber, 521 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE) < 0) { 522 #else 523 if (usb_int_msg(dev, data->intpipe, data->new, data->intpktsize, 524 data->intinterval, false) < 0) { 525 #endif 526 printf("Failed to get keyboard state from device %04x:%04x\n", 527 dev->descriptor.idVendor, dev->descriptor.idProduct); 528 /* Abort, we don't want to use that non-functional keyboard. */ 529 return 0; 530 } 531 532 /* Success. */ 533 return 1; 534 } 535 536 static int probe_usb_keyboard(struct usb_device *dev) 537 { 538 char *stdinname; 539 struct stdio_dev usb_kbd_dev; 540 int error; 541 542 /* Try probing the keyboard */ 543 if (usb_kbd_probe_dev(dev, 0) != 1) 544 return -ENOENT; 545 546 /* Register the keyboard */ 547 debug("USB KBD: register.\n"); 548 memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev)); 549 strcpy(usb_kbd_dev.name, DEVNAME); 550 usb_kbd_dev.flags = DEV_FLAGS_INPUT; 551 usb_kbd_dev.getc = usb_kbd_getc; 552 usb_kbd_dev.tstc = usb_kbd_testc; 553 usb_kbd_dev.priv = (void *)dev; 554 error = stdio_register(&usb_kbd_dev); 555 if (error) 556 return error; 557 558 stdinname = env_get("stdin"); 559 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 560 error = iomux_doenv(stdin, stdinname); 561 if (error) 562 return error; 563 #else 564 /* Check if this is the standard input device. */ 565 if (strcmp(stdinname, DEVNAME)) 566 return 1; 567 568 /* Reassign the console */ 569 if (overwrite_console()) 570 return 1; 571 572 error = console_assign(stdin, DEVNAME); 573 if (error) 574 return error; 575 #endif 576 577 return 0; 578 } 579 580 #if !CONFIG_IS_ENABLED(DM_USB) 581 /* Search for keyboard and register it if found. */ 582 int drv_usb_kbd_init(void) 583 { 584 int error, i; 585 586 debug("%s: Probing for keyboard\n", __func__); 587 /* Scan all USB Devices */ 588 for (i = 0; i < USB_MAX_DEVICE; i++) { 589 struct usb_device *dev; 590 591 /* Get USB device. */ 592 dev = usb_get_dev_index(i); 593 if (!dev) 594 break; 595 596 if (dev->devnum == -1) 597 continue; 598 599 error = probe_usb_keyboard(dev); 600 if (!error) 601 return 1; 602 if (error && error != -ENOENT) 603 return error; 604 } 605 606 /* No USB Keyboard found */ 607 return -1; 608 } 609 610 /* Deregister the keyboard. */ 611 int usb_kbd_deregister(int force) 612 { 613 #if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) 614 struct stdio_dev *dev; 615 struct usb_device *usb_kbd_dev; 616 struct usb_kbd_pdata *data; 617 618 dev = stdio_get_by_name(DEVNAME); 619 if (dev) { 620 usb_kbd_dev = (struct usb_device *)dev->priv; 621 data = usb_kbd_dev->privptr; 622 if (stdio_deregister_dev(dev, force) != 0) 623 return 1; 624 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 625 if (iomux_doenv(stdin, env_get("stdin")) != 0) 626 return 1; 627 #endif 628 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE 629 destroy_int_queue(usb_kbd_dev, data->intq); 630 #endif 631 free(data->new); 632 free(data); 633 } 634 635 return 0; 636 #else 637 return 1; 638 #endif 639 } 640 641 #endif 642 643 #if CONFIG_IS_ENABLED(DM_USB) 644 645 static int usb_kbd_probe(struct udevice *dev) 646 { 647 struct usb_device *udev = dev_get_parent_priv(dev); 648 649 return probe_usb_keyboard(udev); 650 } 651 652 static int usb_kbd_remove(struct udevice *dev) 653 { 654 struct usb_device *udev = dev_get_parent_priv(dev); 655 struct usb_kbd_pdata *data; 656 struct stdio_dev *sdev; 657 int ret; 658 659 sdev = stdio_get_by_name(DEVNAME); 660 if (!sdev) { 661 ret = -ENXIO; 662 goto err; 663 } 664 data = udev->privptr; 665 if (stdio_deregister_dev(sdev, true)) { 666 ret = -EPERM; 667 goto err; 668 } 669 #if CONFIG_IS_ENABLED(CONSOLE_MUX) 670 if (iomux_doenv(stdin, env_get("stdin"))) { 671 ret = -ENOLINK; 672 goto err; 673 } 674 #endif 675 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE 676 destroy_int_queue(udev, data->intq); 677 #endif 678 free(data->new); 679 free(data); 680 681 return 0; 682 err: 683 printf("%s: warning, ret=%d", __func__, ret); 684 return ret; 685 } 686 687 static const struct udevice_id usb_kbd_ids[] = { 688 { .compatible = "usb-keyboard" }, 689 { } 690 }; 691 692 U_BOOT_DRIVER(usb_kbd) = { 693 .name = "usb_kbd", 694 .id = UCLASS_KEYBOARD, 695 .of_match = usb_kbd_ids, 696 .probe = usb_kbd_probe, 697 .remove = usb_kbd_remove, 698 }; 699 700 static const struct usb_device_id kbd_id_table[] = { 701 { 702 .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS | 703 USB_DEVICE_ID_MATCH_INT_SUBCLASS | 704 USB_DEVICE_ID_MATCH_INT_PROTOCOL, 705 .bInterfaceClass = USB_CLASS_HID, 706 .bInterfaceSubClass = USB_SUB_HID_BOOT, 707 .bInterfaceProtocol = USB_PROT_HID_KEYBOARD, 708 }, 709 { } /* Terminating entry */ 710 }; 711 712 U_BOOT_USB_DEVICE(usb_kbd, kbd_id_table); 713 714 #endif 715