1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2001
4 * Denis Peter, MPL AG Switzerland
5 *
6 * Part of this source has been derived from the Linux USB
7 * project.
8 */
9 #include <common.h>
10 #include <console.h>
11 #include <dm.h>
12 #include <errno.h>
13 #include <malloc.h>
14 #include <memalign.h>
15 #include <stdio_dev.h>
16 #include <watchdog.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
overwrite_console(void)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 /*
78 * map arrow keys to ^F/^B ^N/^P, can't really use the proper
79 * ANSI sequence for arrow keys because the queuing code breaks
80 * when a single keypress expands to 3 queue elements
81 */
82 static const unsigned char usb_kbd_arrow[] = {
83 0x6, 0x2, 0xe, 0x10
84 };
85
86 /*
87 * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this
88 * order. See usb_kbd_setled() function!
89 */
90 #define USB_KBD_NUMLOCK (1 << 0)
91 #define USB_KBD_CAPSLOCK (1 << 1)
92 #define USB_KBD_SCROLLLOCK (1 << 2)
93 #define USB_KBD_CTRL (1 << 3)
94
95 #define USB_KBD_LEDMASK \
96 (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK)
97
98 /*
99 * USB Keyboard reports are 8 bytes in boot protocol.
100 * Appendix B of HID Device Class Definition 1.11
101 */
102 #define USB_KBD_BOOT_REPORT_SIZE 8
103
104 struct usb_kbd_pdata {
105 unsigned long intpipe;
106 int intpktsize;
107 int intinterval;
108 unsigned long last_report;
109 struct int_queue *intq;
110
111 uint32_t repeat_delay;
112
113 uint32_t usb_in_pointer;
114 uint32_t usb_out_pointer;
115 uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN];
116
117 uint8_t *new;
118 uint8_t old[USB_KBD_BOOT_REPORT_SIZE];
119
120 uint8_t flags;
121 };
122
123 extern int __maybe_unused net_busy_flag;
124
125 /* The period of time between two calls of usb_kbd_testc(). */
126 static unsigned long __maybe_unused kbd_testc_tms;
127
128 /* Puts character in the queue and sets up the in and out pointer. */
usb_kbd_put_queue(struct usb_kbd_pdata * data,char c)129 static void usb_kbd_put_queue(struct usb_kbd_pdata *data, char c)
130 {
131 if (data->usb_in_pointer == USB_KBD_BUFFER_LEN - 1) {
132 /* Check for buffer full. */
133 if (data->usb_out_pointer == 0)
134 return;
135
136 data->usb_in_pointer = 0;
137 } else {
138 /* Check for buffer full. */
139 if (data->usb_in_pointer == data->usb_out_pointer - 1)
140 return;
141
142 data->usb_in_pointer++;
143 }
144
145 data->usb_kbd_buffer[data->usb_in_pointer] = c;
146 }
147
148 /*
149 * Set the LEDs. Since this is used in the irq routine, the control job is
150 * issued with a timeout of 0. This means, that the job is queued without
151 * waiting for job completion.
152 */
usb_kbd_setled(struct usb_device * dev)153 static void usb_kbd_setled(struct usb_device *dev)
154 {
155 struct usb_interface *iface = &dev->config.if_desc[0];
156 struct usb_kbd_pdata *data = dev->privptr;
157 ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN);
158
159 *leds = data->flags & USB_KBD_LEDMASK;
160 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
161 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
162 0x200, iface->desc.bInterfaceNumber, leds, 1, 0);
163 }
164
165 #define CAPITAL_MASK 0x20
166 /* Translate the scancode in ASCII */
usb_kbd_translate(struct usb_kbd_pdata * data,unsigned char scancode,unsigned char modifier,int pressed)167 static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode,
168 unsigned char modifier, int pressed)
169 {
170 uint8_t keycode = 0;
171
172 /* Key released */
173 if (pressed == 0) {
174 data->repeat_delay = 0;
175 return 0;
176 }
177
178 if (pressed == 2) {
179 data->repeat_delay++;
180 if (data->repeat_delay < REPEAT_DELAY)
181 return 0;
182
183 data->repeat_delay = REPEAT_DELAY;
184 }
185
186 /* Alphanumeric values */
187 if ((scancode > 3) && (scancode <= 0x1d)) {
188 keycode = scancode - 4 + 'a';
189
190 if (data->flags & USB_KBD_CAPSLOCK)
191 keycode &= ~CAPITAL_MASK;
192
193 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) {
194 /* Handle CAPSLock + Shift pressed simultaneously */
195 if (keycode & CAPITAL_MASK)
196 keycode &= ~CAPITAL_MASK;
197 else
198 keycode |= CAPITAL_MASK;
199 }
200 }
201
202 if ((scancode > 0x1d) && (scancode < 0x39)) {
203 /* Shift pressed */
204 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT))
205 keycode = usb_kbd_numkey_shifted[scancode - 0x1e];
206 else
207 keycode = usb_kbd_numkey[scancode - 0x1e];
208 }
209
210 /* Arrow keys */
211 if ((scancode >= 0x4f) && (scancode <= 0x52))
212 keycode = usb_kbd_arrow[scancode - 0x4f];
213
214 /* Numeric keypad */
215 if ((scancode >= 0x54) && (scancode <= 0x67))
216 keycode = usb_kbd_num_keypad[scancode - 0x54];
217
218 if (data->flags & USB_KBD_CTRL)
219 keycode = scancode - 0x3;
220
221 if (pressed == 1) {
222 if (scancode == NUM_LOCK) {
223 data->flags ^= USB_KBD_NUMLOCK;
224 return 1;
225 }
226
227 if (scancode == CAPS_LOCK) {
228 data->flags ^= USB_KBD_CAPSLOCK;
229 return 1;
230 }
231 if (scancode == SCROLL_LOCK) {
232 data->flags ^= USB_KBD_SCROLLLOCK;
233 return 1;
234 }
235 }
236
237 /* Report keycode if any */
238 if (keycode) {
239 debug("%c", keycode);
240 usb_kbd_put_queue(data, keycode);
241 }
242
243 return 0;
244 }
245
usb_kbd_service_key(struct usb_device * dev,int i,int up)246 static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up)
247 {
248 uint32_t res = 0;
249 struct usb_kbd_pdata *data = dev->privptr;
250 uint8_t *new;
251 uint8_t *old;
252
253 if (up) {
254 new = data->old;
255 old = data->new;
256 } else {
257 new = data->new;
258 old = data->old;
259 }
260
261 if ((old[i] > 3) &&
262 (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) ==
263 new + USB_KBD_BOOT_REPORT_SIZE)) {
264 res |= usb_kbd_translate(data, old[i], data->new[0], up);
265 }
266
267 return res;
268 }
269
270 /* Interrupt service routine */
usb_kbd_irq_worker(struct usb_device * dev)271 static int usb_kbd_irq_worker(struct usb_device *dev)
272 {
273 struct usb_kbd_pdata *data = dev->privptr;
274 int i, res = 0;
275
276 /* No combo key pressed */
277 if (data->new[0] == 0x00)
278 data->flags &= ~USB_KBD_CTRL;
279 /* Left or Right Ctrl pressed */
280 else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR))
281 data->flags |= USB_KBD_CTRL;
282
283 for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) {
284 res |= usb_kbd_service_key(dev, i, 0);
285 res |= usb_kbd_service_key(dev, i, 1);
286 }
287
288 /* Key is still pressed */
289 if ((data->new[2] > 3) && (data->old[2] == data->new[2]))
290 res |= usb_kbd_translate(data, data->new[2], data->new[0], 2);
291
292 if (res == 1)
293 usb_kbd_setled(dev);
294
295 memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE);
296
297 return 1;
298 }
299
300 /* Keyboard interrupt handler */
usb_kbd_irq(struct usb_device * dev)301 static int usb_kbd_irq(struct usb_device *dev)
302 {
303 if ((dev->irq_status != 0) ||
304 (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) {
305 debug("USB KBD: Error %lX, len %d\n",
306 dev->irq_status, dev->irq_act_len);
307 return 1;
308 }
309
310 return usb_kbd_irq_worker(dev);
311 }
312
313 /* Interrupt polling */
usb_kbd_poll_for_event(struct usb_device * dev)314 static inline void usb_kbd_poll_for_event(struct usb_device *dev)
315 {
316 #if defined(CONFIG_SYS_USB_EVENT_POLL)
317 struct usb_kbd_pdata *data = dev->privptr;
318
319 /* Submit a interrupt transfer request */
320 usb_submit_int_msg(dev, data->intpipe, &data->new[0], data->intpktsize,
321 data->intinterval);
322
323 usb_kbd_irq_worker(dev);
324 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) || \
325 defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
326 #if defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
327 struct usb_interface *iface;
328 struct usb_kbd_pdata *data = dev->privptr;
329 iface = &dev->config.if_desc[0];
330 usb_get_report(dev, iface->desc.bInterfaceNumber,
331 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE);
332 if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) {
333 usb_kbd_irq_worker(dev);
334 #else
335 struct usb_kbd_pdata *data = dev->privptr;
336 if (poll_int_queue(dev, data->intq)) {
337 usb_kbd_irq_worker(dev);
338 /* We've consumed all queued int packets, create new */
339 destroy_int_queue(dev, data->intq);
340 data->intq = create_int_queue(dev, data->intpipe, 1,
341 USB_KBD_BOOT_REPORT_SIZE, data->new,
342 data->intinterval);
343 #endif
344 data->last_report = get_timer(0);
345 /* Repeat last usb hid report every REPEAT_RATE ms for keyrepeat */
346 } else if (data->last_report != -1 &&
347 get_timer(data->last_report) > REPEAT_RATE) {
348 usb_kbd_irq_worker(dev);
349 data->last_report = get_timer(0);
350 }
351 #endif
352 }
353
354 /* test if a character is in the queue */
355 static int usb_kbd_testc(struct stdio_dev *sdev)
356 {
357 struct stdio_dev *dev;
358 struct usb_device *usb_kbd_dev;
359 struct usb_kbd_pdata *data;
360
361 #ifdef CONFIG_CMD_NET
362 /*
363 * If net_busy_flag is 1, NET transfer is running,
364 * then we check key-pressed every second (first check may be
365 * less than 1 second) to improve TFTP booting performance.
366 */
367 if (net_busy_flag && (get_timer(kbd_testc_tms) < CONFIG_SYS_HZ))
368 return 0;
369 kbd_testc_tms = get_timer(0);
370 #endif
371 dev = stdio_get_by_name(sdev->name);
372 usb_kbd_dev = (struct usb_device *)dev->priv;
373 data = usb_kbd_dev->privptr;
374
375 usb_kbd_poll_for_event(usb_kbd_dev);
376
377 return !(data->usb_in_pointer == data->usb_out_pointer);
378 }
379
380 /* gets the character from the queue */
381 static int usb_kbd_getc(struct stdio_dev *sdev)
382 {
383 struct stdio_dev *dev;
384 struct usb_device *usb_kbd_dev;
385 struct usb_kbd_pdata *data;
386
387 dev = stdio_get_by_name(sdev->name);
388 usb_kbd_dev = (struct usb_device *)dev->priv;
389 data = usb_kbd_dev->privptr;
390
391 while (data->usb_in_pointer == data->usb_out_pointer) {
392 WATCHDOG_RESET();
393 usb_kbd_poll_for_event(usb_kbd_dev);
394 }
395
396 if (data->usb_out_pointer == USB_KBD_BUFFER_LEN - 1)
397 data->usb_out_pointer = 0;
398 else
399 data->usb_out_pointer++;
400
401 return data->usb_kbd_buffer[data->usb_out_pointer];
402 }
403
404 /* probes the USB device dev for keyboard type. */
405 static int usb_kbd_probe_dev(struct usb_device *dev, unsigned int ifnum)
406 {
407 struct usb_interface *iface;
408 struct usb_endpoint_descriptor *ep;
409 struct usb_kbd_pdata *data;
410
411 if (dev->descriptor.bNumConfigurations != 1)
412 return 0;
413
414 iface = &dev->config.if_desc[ifnum];
415
416 if (iface->desc.bInterfaceClass != USB_CLASS_HID)
417 return 0;
418
419 if (iface->desc.bInterfaceSubClass != USB_SUB_HID_BOOT)
420 return 0;
421
422 if (iface->desc.bInterfaceProtocol != USB_PROT_HID_KEYBOARD)
423 return 0;
424
425 if (iface->desc.bNumEndpoints != 1)
426 return 0;
427
428 ep = &iface->ep_desc[0];
429
430 /* Check if endpoint 1 is interrupt endpoint */
431 if (!(ep->bEndpointAddress & 0x80))
432 return 0;
433
434 if ((ep->bmAttributes & 3) != 3)
435 return 0;
436
437 debug("USB KBD: found set protocol...\n");
438
439 data = malloc(sizeof(struct usb_kbd_pdata));
440 if (!data) {
441 printf("USB KBD: Error allocating private data\n");
442 return 0;
443 }
444
445 /* Clear private data */
446 memset(data, 0, sizeof(struct usb_kbd_pdata));
447
448 /* allocate input buffer aligned and sized to USB DMA alignment */
449 data->new = memalign(USB_DMA_MINALIGN,
450 roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN));
451
452 /* Insert private data into USB device structure */
453 dev->privptr = data;
454
455 /* Set IRQ handler */
456 dev->irq_handle = usb_kbd_irq;
457
458 data->intpipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
459 data->intpktsize = min(usb_maxpacket(dev, data->intpipe),
460 USB_KBD_BOOT_REPORT_SIZE);
461 data->intinterval = ep->bInterval;
462 data->last_report = -1;
463
464 /* We found a USB Keyboard, install it. */
465 usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0);
466
467 debug("USB KBD: found set idle...\n");
468 #if !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) && \
469 !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
470 usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE / 4, 0);
471 #else
472 usb_set_idle(dev, iface->desc.bInterfaceNumber, 0, 0);
473 #endif
474
475 debug("USB KBD: enable interrupt pipe...\n");
476 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
477 data->intq = create_int_queue(dev, data->intpipe, 1,
478 USB_KBD_BOOT_REPORT_SIZE, data->new,
479 data->intinterval);
480 if (!data->intq) {
481 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
482 if (usb_get_report(dev, iface->desc.bInterfaceNumber,
483 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE) < 0) {
484 #else
485 if (usb_submit_int_msg(dev, data->intpipe, data->new, data->intpktsize,
486 data->intinterval) < 0) {
487 #endif
488 printf("Failed to get keyboard state from device %04x:%04x\n",
489 dev->descriptor.idVendor, dev->descriptor.idProduct);
490 /* Abort, we don't want to use that non-functional keyboard. */
491 return 0;
492 }
493
494 /* Success. */
495 return 1;
496 }
497
498 static int probe_usb_keyboard(struct usb_device *dev)
499 {
500 char *stdinname;
501 struct stdio_dev usb_kbd_dev;
502 int error;
503
504 /* Try probing the keyboard */
505 if (usb_kbd_probe_dev(dev, 0) != 1)
506 return -ENOENT;
507
508 /* Register the keyboard */
509 debug("USB KBD: register.\n");
510 memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev));
511 strcpy(usb_kbd_dev.name, DEVNAME);
512 usb_kbd_dev.flags = DEV_FLAGS_INPUT;
513 usb_kbd_dev.getc = usb_kbd_getc;
514 usb_kbd_dev.tstc = usb_kbd_testc;
515 usb_kbd_dev.priv = (void *)dev;
516 error = stdio_register(&usb_kbd_dev);
517 if (error)
518 return error;
519
520 stdinname = env_get("stdin");
521 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
522 error = iomux_doenv(stdin, stdinname);
523 if (error)
524 return error;
525 #else
526 /* Check if this is the standard input device. */
527 if (strcmp(stdinname, DEVNAME))
528 return 1;
529
530 /* Reassign the console */
531 if (overwrite_console())
532 return 1;
533
534 error = console_assign(stdin, DEVNAME);
535 if (error)
536 return error;
537 #endif
538
539 return 0;
540 }
541
542 #if !CONFIG_IS_ENABLED(DM_USB)
543 /* Search for keyboard and register it if found. */
544 int drv_usb_kbd_init(void)
545 {
546 int error, i;
547
548 debug("%s: Probing for keyboard\n", __func__);
549 /* Scan all USB Devices */
550 for (i = 0; i < USB_MAX_DEVICE; i++) {
551 struct usb_device *dev;
552
553 /* Get USB device. */
554 dev = usb_get_dev_index(i);
555 if (!dev)
556 break;
557
558 if (dev->devnum == -1)
559 continue;
560
561 error = probe_usb_keyboard(dev);
562 if (!error)
563 return 1;
564 if (error && error != -ENOENT)
565 return error;
566 }
567
568 /* No USB Keyboard found */
569 return -1;
570 }
571
572 /* Deregister the keyboard. */
573 int usb_kbd_deregister(int force)
574 {
575 #if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
576 struct stdio_dev *dev;
577 struct usb_device *usb_kbd_dev;
578 struct usb_kbd_pdata *data;
579
580 dev = stdio_get_by_name(DEVNAME);
581 if (dev) {
582 usb_kbd_dev = (struct usb_device *)dev->priv;
583 data = usb_kbd_dev->privptr;
584 if (stdio_deregister_dev(dev, force) != 0)
585 return 1;
586 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
587 if (iomux_doenv(stdin, env_get("stdin")) != 0)
588 return 1;
589 #endif
590 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
591 destroy_int_queue(usb_kbd_dev, data->intq);
592 #endif
593 free(data->new);
594 free(data);
595 }
596
597 return 0;
598 #else
599 return 1;
600 #endif
601 }
602
603 #endif
604
605 #if CONFIG_IS_ENABLED(DM_USB)
606
607 static int usb_kbd_probe(struct udevice *dev)
608 {
609 struct usb_device *udev = dev_get_parent_priv(dev);
610
611 return probe_usb_keyboard(udev);
612 }
613
614 static int usb_kbd_remove(struct udevice *dev)
615 {
616 struct usb_device *udev = dev_get_parent_priv(dev);
617 struct usb_kbd_pdata *data;
618 struct stdio_dev *sdev;
619 int ret;
620
621 sdev = stdio_get_by_name(DEVNAME);
622 if (!sdev) {
623 ret = -ENXIO;
624 goto err;
625 }
626 data = udev->privptr;
627 if (stdio_deregister_dev(sdev, true)) {
628 ret = -EPERM;
629 goto err;
630 }
631 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
632 if (iomux_doenv(stdin, env_get("stdin"))) {
633 ret = -ENOLINK;
634 goto err;
635 }
636 #endif
637 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
638 destroy_int_queue(udev, data->intq);
639 #endif
640 free(data->new);
641 free(data);
642
643 return 0;
644 err:
645 printf("%s: warning, ret=%d", __func__, ret);
646 return ret;
647 }
648
649 static const struct udevice_id usb_kbd_ids[] = {
650 { .compatible = "usb-keyboard" },
651 { }
652 };
653
654 U_BOOT_DRIVER(usb_kbd) = {
655 .name = "usb_kbd",
656 .id = UCLASS_KEYBOARD,
657 .of_match = usb_kbd_ids,
658 .probe = usb_kbd_probe,
659 .remove = usb_kbd_remove,
660 };
661
662 static const struct usb_device_id kbd_id_table[] = {
663 {
664 .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
665 USB_DEVICE_ID_MATCH_INT_SUBCLASS |
666 USB_DEVICE_ID_MATCH_INT_PROTOCOL,
667 .bInterfaceClass = USB_CLASS_HID,
668 .bInterfaceSubClass = USB_SUB_HID_BOOT,
669 .bInterfaceProtocol = USB_PROT_HID_KEYBOARD,
670 },
671 { } /* Terminating entry */
672 };
673
674 U_BOOT_USB_DEVICE(usb_kbd, kbd_id_table);
675
676 #endif
677