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wdenkaffae2b2002-08-17 09:36:01 +00001/*
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 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02008 * SPDX-License-Identifier: GPL-2.0+
wdenkaffae2b2002-08-17 09:36:01 +00009 */
10#include <common.h>
Hans de Goede0ea09df2014-09-20 16:54:34 +020011#include <errno.h>
Marek Vasut9a8c72a2011-10-10 16:34:26 +010012#include <malloc.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020013#include <stdio_dev.h>
Christian Eggersc9182612008-05-21 22:12:00 +020014#include <asm/byteorder.h>
wdenkaffae2b2002-08-17 09:36:01 +000015
wdenkaffae2b2002-08-17 09:36:01 +000016#include <usb.h>
17
wdenkaffae2b2002-08-17 09:36:01 +000018/*
Marek Vasut00b7d6e2011-10-10 05:34:25 +000019 * If overwrite_console returns 1, the stdin, stderr and stdout
wdenkaffae2b2002-08-17 09:36:01 +000020 * are switched to the serial port, else the settings in the
21 * environment are used
22 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020023#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
Marek Vasut00b7d6e2011-10-10 05:34:25 +000024extern int overwrite_console(void);
wdenkaffae2b2002-08-17 09:36:01 +000025#else
Marek Vasut00b7d6e2011-10-10 05:34:25 +000026int overwrite_console(void)
wdenkaffae2b2002-08-17 09:36:01 +000027{
Marek Vasut00b7d6e2011-10-10 05:34:25 +000028 return 0;
wdenkaffae2b2002-08-17 09:36:01 +000029}
30#endif
31
Marek Vasut9a8c72a2011-10-10 16:34:26 +010032/* Keyboard sampling rate */
33#define REPEAT_RATE (40 / 4) /* 40msec -> 25cps */
34#define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */
wdenkaffae2b2002-08-17 09:36:01 +000035
36#define NUM_LOCK 0x53
Marek Vasut00b7d6e2011-10-10 05:34:25 +000037#define CAPS_LOCK 0x39
38#define SCROLL_LOCK 0x47
wdenkaffae2b2002-08-17 09:36:01 +000039
wdenkaffae2b2002-08-17 09:36:01 +000040/* Modifier bits */
Marek Vasut9a8c72a2011-10-10 16:34:26 +010041#define LEFT_CNTR (1 << 0)
42#define LEFT_SHIFT (1 << 1)
43#define LEFT_ALT (1 << 2)
44#define LEFT_GUI (1 << 3)
45#define RIGHT_CNTR (1 << 4)
46#define RIGHT_SHIFT (1 << 5)
47#define RIGHT_ALT (1 << 6)
48#define RIGHT_GUI (1 << 7)
wdenkaffae2b2002-08-17 09:36:01 +000049
Marek Vasut9a8c72a2011-10-10 16:34:26 +010050/* Size of the keyboard buffer */
51#define USB_KBD_BUFFER_LEN 0x20
wdenkaffae2b2002-08-17 09:36:01 +000052
Marek Vasut9a8c72a2011-10-10 16:34:26 +010053/* Device name */
Marek Vasut00b7d6e2011-10-10 05:34:25 +000054#define DEVNAME "usbkbd"
wdenkaffae2b2002-08-17 09:36:01 +000055
Marek Vasut9a8c72a2011-10-10 16:34:26 +010056/* Keyboard maps */
57static const unsigned char usb_kbd_numkey[] = {
Marek Vasut00b7d6e2011-10-10 05:34:25 +000058 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
59 '\r', 0x1b, '\b', '\t', ' ', '-', '=', '[', ']',
60 '\\', '#', ';', '\'', '`', ',', '.', '/'
wdenkaffae2b2002-08-17 09:36:01 +000061};
Marek Vasut9a8c72a2011-10-10 16:34:26 +010062static const unsigned char usb_kbd_numkey_shifted[] = {
Marek Vasut00b7d6e2011-10-10 05:34:25 +000063 '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
64 '\r', 0x1b, '\b', '\t', ' ', '_', '+', '{', '}',
65 '|', '~', ':', '"', '~', '<', '>', '?'
wdenkaffae2b2002-08-17 09:36:01 +000066};
67
Vincent Palatind53da842012-01-09 12:59:36 +000068static const unsigned char usb_kbd_num_keypad[] = {
69 '/', '*', '-', '+', '\r',
70 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
71 '.', 0, 0, 0, '='
72};
73
Marek Vasut9a8c72a2011-10-10 16:34:26 +010074/*
Allen Martin4151a402012-11-06 13:26:03 -080075 * map arrow keys to ^F/^B ^N/^P, can't really use the proper
76 * ANSI sequence for arrow keys because the queuing code breaks
77 * when a single keypress expands to 3 queue elements
78 */
79static const unsigned char usb_kbd_arrow[] = {
80 0x6, 0x2, 0xe, 0x10
81};
82
83/*
Marek Vasut9a8c72a2011-10-10 16:34:26 +010084 * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this
85 * order. See usb_kbd_setled() function!
86 */
87#define USB_KBD_NUMLOCK (1 << 0)
88#define USB_KBD_CAPSLOCK (1 << 1)
89#define USB_KBD_SCROLLLOCK (1 << 2)
90#define USB_KBD_CTRL (1 << 3)
Marek Vasut48c80732011-09-25 20:00:37 +010091
Marek Vasut9a8c72a2011-10-10 16:34:26 +010092#define USB_KBD_LEDMASK \
93 (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK)
94
Adrian Cox08a98b82014-04-10 14:02:44 +010095/*
96 * USB Keyboard reports are 8 bytes in boot protocol.
97 * Appendix B of HID Device Class Definition 1.11
98 */
99#define USB_KBD_BOOT_REPORT_SIZE 8
100
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100101struct usb_kbd_pdata {
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200102 unsigned long intpipe;
103 int intpktsize;
104 int intinterval;
Hans de Goede8e553112014-09-24 14:06:11 +0200105 struct int_queue *intq;
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200106
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100107 uint32_t repeat_delay;
108
109 uint32_t usb_in_pointer;
110 uint32_t usb_out_pointer;
111 uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN];
112
Allen Martind7475382012-10-24 08:32:04 +0000113 uint8_t *new;
Adrian Cox08a98b82014-04-10 14:02:44 +0100114 uint8_t old[USB_KBD_BOOT_REPORT_SIZE];
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100115
116 uint8_t flags;
117};
118
Jim Lin07551f22013-08-13 19:04:22 +0800119extern int __maybe_unused net_busy_flag;
120
121/* The period of time between two calls of usb_kbd_testc(). */
122static unsigned long __maybe_unused kbd_testc_tms;
123
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100124/* Puts character in the queue and sets up the in and out pointer. */
125static void usb_kbd_put_queue(struct usb_kbd_pdata *data, char c)
126{
127 if (data->usb_in_pointer == USB_KBD_BUFFER_LEN - 1) {
128 /* Check for buffer full. */
129 if (data->usb_out_pointer == 0)
130 return;
131
132 data->usb_in_pointer = 0;
133 } else {
134 /* Check for buffer full. */
135 if (data->usb_in_pointer == data->usb_out_pointer - 1)
136 return;
137
138 data->usb_in_pointer++;
139 }
140
141 data->usb_kbd_buffer[data->usb_in_pointer] = c;
142}
143
144/*
145 * Set the LEDs. Since this is used in the irq routine, the control job is
146 * issued with a timeout of 0. This means, that the job is queued without
147 * waiting for job completion.
148 */
149static void usb_kbd_setled(struct usb_device *dev)
150{
151 struct usb_interface *iface = &dev->config.if_desc[0];
152 struct usb_kbd_pdata *data = dev->privptr;
Hans de Goede9b239382014-09-20 16:51:26 +0200153 ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN);
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100154
Hans de Goede9b239382014-09-20 16:51:26 +0200155 *leds = data->flags & USB_KBD_LEDMASK;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100156 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
157 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
Hans de Goede9b239382014-09-20 16:51:26 +0200158 0x200, iface->desc.bInterfaceNumber, leds, 1, 0);
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100159}
160
161#define CAPITAL_MASK 0x20
162/* Translate the scancode in ASCII */
163static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode,
164 unsigned char modifier, int pressed)
165{
166 uint8_t keycode = 0;
167
168 /* Key released */
169 if (pressed == 0) {
170 data->repeat_delay = 0;
171 return 0;
172 }
173
174 if (pressed == 2) {
175 data->repeat_delay++;
176 if (data->repeat_delay < REPEAT_DELAY)
177 return 0;
178
179 data->repeat_delay = REPEAT_DELAY;
180 }
181
182 /* Alphanumeric values */
183 if ((scancode > 3) && (scancode <= 0x1d)) {
184 keycode = scancode - 4 + 'a';
185
186 if (data->flags & USB_KBD_CAPSLOCK)
187 keycode &= ~CAPITAL_MASK;
188
189 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) {
190 /* Handle CAPSLock + Shift pressed simultaneously */
191 if (keycode & CAPITAL_MASK)
192 keycode &= ~CAPITAL_MASK;
193 else
194 keycode |= CAPITAL_MASK;
195 }
196 }
197
198 if ((scancode > 0x1d) && (scancode < 0x3a)) {
199 /* Shift pressed */
200 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT))
201 keycode = usb_kbd_numkey_shifted[scancode - 0x1e];
202 else
203 keycode = usb_kbd_numkey[scancode - 0x1e];
204 }
205
Allen Martin4151a402012-11-06 13:26:03 -0800206 /* Arrow keys */
207 if ((scancode >= 0x4f) && (scancode <= 0x52))
208 keycode = usb_kbd_arrow[scancode - 0x4f];
209
Vincent Palatind53da842012-01-09 12:59:36 +0000210 /* Numeric keypad */
211 if ((scancode >= 0x54) && (scancode <= 0x67))
212 keycode = usb_kbd_num_keypad[scancode - 0x54];
213
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100214 if (data->flags & USB_KBD_CTRL)
215 keycode = scancode - 0x3;
216
217 if (pressed == 1) {
218 if (scancode == NUM_LOCK) {
219 data->flags ^= USB_KBD_NUMLOCK;
220 return 1;
221 }
222
223 if (scancode == CAPS_LOCK) {
224 data->flags ^= USB_KBD_CAPSLOCK;
225 return 1;
226 }
227 if (scancode == SCROLL_LOCK) {
228 data->flags ^= USB_KBD_SCROLLLOCK;
229 return 1;
230 }
231 }
232
233 /* Report keycode if any */
234 if (keycode) {
Vivek Gautamceb49722013-04-12 16:34:33 +0530235 debug("%c", keycode);
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100236 usb_kbd_put_queue(data, keycode);
237 }
238
239 return 0;
240}
241
242static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up)
243{
244 uint32_t res = 0;
245 struct usb_kbd_pdata *data = dev->privptr;
246 uint8_t *new;
247 uint8_t *old;
248
249 if (up) {
250 new = data->old;
251 old = data->new;
252 } else {
253 new = data->new;
254 old = data->old;
255 }
256
Adrian Cox08a98b82014-04-10 14:02:44 +0100257 if ((old[i] > 3) &&
258 (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) ==
259 new + USB_KBD_BOOT_REPORT_SIZE)) {
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100260 res |= usb_kbd_translate(data, old[i], data->new[0], up);
Adrian Cox08a98b82014-04-10 14:02:44 +0100261 }
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100262
263 return res;
264}
265
266/* Interrupt service routine */
267static int usb_kbd_irq_worker(struct usb_device *dev)
268{
269 struct usb_kbd_pdata *data = dev->privptr;
270 int i, res = 0;
271
272 /* No combo key pressed */
273 if (data->new[0] == 0x00)
274 data->flags &= ~USB_KBD_CTRL;
275 /* Left or Right Ctrl pressed */
276 else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR))
277 data->flags |= USB_KBD_CTRL;
278
Adrian Cox08a98b82014-04-10 14:02:44 +0100279 for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) {
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100280 res |= usb_kbd_service_key(dev, i, 0);
281 res |= usb_kbd_service_key(dev, i, 1);
282 }
283
284 /* Key is still pressed */
285 if ((data->new[2] > 3) && (data->old[2] == data->new[2]))
286 res |= usb_kbd_translate(data, data->new[2], data->new[0], 2);
287
288 if (res == 1)
289 usb_kbd_setled(dev);
290
Adrian Cox08a98b82014-04-10 14:02:44 +0100291 memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE);
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100292
293 return 1;
294}
295
296/* Keyboard interrupt handler */
297static int usb_kbd_irq(struct usb_device *dev)
298{
Adrian Cox08a98b82014-04-10 14:02:44 +0100299 if ((dev->irq_status != 0) ||
300 (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) {
Vivek Gautamceb49722013-04-12 16:34:33 +0530301 debug("USB KBD: Error %lX, len %d\n",
302 dev->irq_status, dev->irq_act_len);
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100303 return 1;
304 }
305
306 return usb_kbd_irq_worker(dev);
307}
308
309/* Interrupt polling */
Marek Vasut48c80732011-09-25 20:00:37 +0100310static inline void usb_kbd_poll_for_event(struct usb_device *dev)
311{
312#if defined(CONFIG_SYS_USB_EVENT_POLL)
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200313 struct usb_kbd_pdata *data = dev->privptr;
amartin@nvidia.comf9636e82011-12-20 14:56:16 +0000314
315 /* Submit a interrupt transfer request */
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200316 usb_submit_int_msg(dev, data->intpipe, &data->new[0], data->intpktsize,
317 data->intinterval);
amartin@nvidia.comf9636e82011-12-20 14:56:16 +0000318
Marek Vasut48c80732011-09-25 20:00:37 +0100319 usb_kbd_irq_worker(dev);
320#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
321 struct usb_interface *iface;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100322 struct usb_kbd_pdata *data = dev->privptr;
Marek Vasut48c80732011-09-25 20:00:37 +0100323 iface = &dev->config.if_desc[0];
324 usb_get_report(dev, iface->desc.bInterfaceNumber,
Adrian Cox08a98b82014-04-10 14:02:44 +0100325 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE);
326 if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE))
Marek Vasut48c80732011-09-25 20:00:37 +0100327 usb_kbd_irq_worker(dev);
Hans de Goede8e553112014-09-24 14:06:11 +0200328#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
329 struct usb_kbd_pdata *data = dev->privptr;
330 if (poll_int_queue(dev, data->intq)) {
331 usb_kbd_irq_worker(dev);
332 /* We've consumed all queued int packets, create new */
333 destroy_int_queue(dev, data->intq);
334 data->intq = create_int_queue(dev, data->intpipe, 1,
335 USB_KBD_BOOT_REPORT_SIZE, data->new);
336 }
Marek Vasut48c80732011-09-25 20:00:37 +0100337#endif
338}
339
wdenkaffae2b2002-08-17 09:36:01 +0000340/* test if a character is in the queue */
Simon Glass709ea542014-07-23 06:54:59 -0600341static int usb_kbd_testc(struct stdio_dev *sdev)
wdenkaffae2b2002-08-17 09:36:01 +0000342{
Marek Vasut48c80732011-09-25 20:00:37 +0100343 struct stdio_dev *dev;
344 struct usb_device *usb_kbd_dev;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100345 struct usb_kbd_pdata *data;
Marek Vasut48c80732011-09-25 20:00:37 +0100346
Jim Linc95e2b92013-08-26 20:21:09 +0800347#ifdef CONFIG_CMD_NET
348 /*
349 * If net_busy_flag is 1, NET transfer is running,
350 * then we check key-pressed every second (first check may be
351 * less than 1 second) to improve TFTP booting performance.
352 */
353 if (net_busy_flag && (get_timer(kbd_testc_tms) < CONFIG_SYS_HZ))
354 return 0;
355 kbd_testc_tms = get_timer(0);
356#endif
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100357 dev = stdio_get_by_name(DEVNAME);
Marek Vasut48c80732011-09-25 20:00:37 +0100358 usb_kbd_dev = (struct usb_device *)dev->priv;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100359 data = usb_kbd_dev->privptr;
Marek Vasut48c80732011-09-25 20:00:37 +0100360
361 usb_kbd_poll_for_event(usb_kbd_dev);
362
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100363 return !(data->usb_in_pointer == data->usb_out_pointer);
wdenkaffae2b2002-08-17 09:36:01 +0000364}
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100365
wdenkaffae2b2002-08-17 09:36:01 +0000366/* gets the character from the queue */
Simon Glass709ea542014-07-23 06:54:59 -0600367static int usb_kbd_getc(struct stdio_dev *sdev)
wdenkaffae2b2002-08-17 09:36:01 +0000368{
Marek Vasut48c80732011-09-25 20:00:37 +0100369 struct stdio_dev *dev;
370 struct usb_device *usb_kbd_dev;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100371 struct usb_kbd_pdata *data;
Marek Vasut48c80732011-09-25 20:00:37 +0100372
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100373 dev = stdio_get_by_name(DEVNAME);
Marek Vasut48c80732011-09-25 20:00:37 +0100374 usb_kbd_dev = (struct usb_device *)dev->priv;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100375 data = usb_kbd_dev->privptr;
Marek Vasut48c80732011-09-25 20:00:37 +0100376
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100377 while (data->usb_in_pointer == data->usb_out_pointer)
Marek Vasut48c80732011-09-25 20:00:37 +0100378 usb_kbd_poll_for_event(usb_kbd_dev);
379
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100380 if (data->usb_out_pointer == USB_KBD_BUFFER_LEN - 1)
381 data->usb_out_pointer = 0;
wdenkaffae2b2002-08-17 09:36:01 +0000382 else
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100383 data->usb_out_pointer++;
wdenkaffae2b2002-08-17 09:36:01 +0000384
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100385 return data->usb_kbd_buffer[data->usb_out_pointer];
wdenkaffae2b2002-08-17 09:36:01 +0000386}
387
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100388/* probes the USB device dev for keyboard type. */
389static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
390{
391 struct usb_interface *iface;
392 struct usb_endpoint_descriptor *ep;
393 struct usb_kbd_pdata *data;
wdenkaffae2b2002-08-17 09:36:01 +0000394
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100395 if (dev->descriptor.bNumConfigurations != 1)
396 return 0;
397
398 iface = &dev->config.if_desc[ifnum];
399
400 if (iface->desc.bInterfaceClass != 3)
401 return 0;
402
403 if (iface->desc.bInterfaceSubClass != 1)
404 return 0;
405
406 if (iface->desc.bInterfaceProtocol != 1)
407 return 0;
408
409 if (iface->desc.bNumEndpoints != 1)
410 return 0;
411
412 ep = &iface->ep_desc[0];
413
414 /* Check if endpoint 1 is interrupt endpoint */
415 if (!(ep->bEndpointAddress & 0x80))
416 return 0;
417
418 if ((ep->bmAttributes & 3) != 3)
419 return 0;
420
Vivek Gautamceb49722013-04-12 16:34:33 +0530421 debug("USB KBD: found set protocol...\n");
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100422
423 data = malloc(sizeof(struct usb_kbd_pdata));
424 if (!data) {
425 printf("USB KBD: Error allocating private data\n");
426 return 0;
427 }
428
429 /* Clear private data */
430 memset(data, 0, sizeof(struct usb_kbd_pdata));
431
Allen Martind7475382012-10-24 08:32:04 +0000432 /* allocate input buffer aligned and sized to USB DMA alignment */
Adrian Cox08a98b82014-04-10 14:02:44 +0100433 data->new = memalign(USB_DMA_MINALIGN,
434 roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN));
Allen Martind7475382012-10-24 08:32:04 +0000435
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100436 /* Insert private data into USB device structure */
437 dev->privptr = data;
438
439 /* Set IRQ handler */
440 dev->irq_handle = usb_kbd_irq;
441
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200442 data->intpipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
443 data->intpktsize = min(usb_maxpacket(dev, data->intpipe),
444 USB_KBD_BOOT_REPORT_SIZE);
445 data->intinterval = ep->bInterval;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100446
447 /* We found a USB Keyboard, install it. */
448 usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0);
449
Vivek Gautamceb49722013-04-12 16:34:33 +0530450 debug("USB KBD: found set idle...\n");
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100451 usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0);
452
Vivek Gautamceb49722013-04-12 16:34:33 +0530453 debug("USB KBD: enable interrupt pipe...\n");
Hans de Goede8e553112014-09-24 14:06:11 +0200454#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
455 data->intq = create_int_queue(dev, data->intpipe, 1,
456 USB_KBD_BOOT_REPORT_SIZE, data->new);
457 if (!data->intq) {
458#else
Hans de Goede8f8d7d22014-09-24 14:06:10 +0200459 if (usb_submit_int_msg(dev, data->intpipe, data->new, data->intpktsize,
460 data->intinterval) < 0) {
Hans de Goede8e553112014-09-24 14:06:11 +0200461#endif
Vincent Palatin5da2dc92013-05-10 19:48:59 -0700462 printf("Failed to get keyboard state from device %04x:%04x\n",
463 dev->descriptor.idVendor, dev->descriptor.idProduct);
464 /* Abort, we don't want to use that non-functional keyboard. */
465 return 0;
466 }
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100467
468 /* Success. */
469 return 1;
470}
471
472/* Search for keyboard and register it if found. */
wdenkaffae2b2002-08-17 09:36:01 +0000473int drv_usb_kbd_init(void)
474{
Hans de Goede3f78a282014-09-20 16:54:36 +0200475 struct stdio_dev usb_kbd_dev;
wdenkaffae2b2002-08-17 09:36:01 +0000476 struct usb_device *dev;
Marek Vasut00b7d6e2011-10-10 05:34:25 +0000477 char *stdinname = getenv("stdin");
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100478 int error, i;
wdenkaffae2b2002-08-17 09:36:01 +0000479
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100480 /* Scan all USB Devices */
481 for (i = 0; i < USB_MAX_DEVICE; i++) {
482 /* Get USB device. */
483 dev = usb_get_dev_index(i);
484 if (!dev)
Ryan CHEN3b20fd82008-08-20 13:00:17 -0400485 return -1;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100486
487 if (dev->devnum == -1)
488 continue;
489
490 /* Try probing the keyboard */
491 if (usb_kbd_probe(dev, 0) != 1)
492 continue;
493
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100494 /* Register the keyboard */
Vivek Gautamceb49722013-04-12 16:34:33 +0530495 debug("USB KBD: register.\n");
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100496 memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev));
497 strcpy(usb_kbd_dev.name, DEVNAME);
498 usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100499 usb_kbd_dev.getc = usb_kbd_getc;
500 usb_kbd_dev.tstc = usb_kbd_testc;
501 usb_kbd_dev.priv = (void *)dev;
502 error = stdio_register(&usb_kbd_dev);
503 if (error)
504 return error;
505
amartin@nvidia.comfb3ef642011-12-23 10:29:48 +0000506#ifdef CONFIG_CONSOLE_MUX
507 error = iomux_doenv(stdin, stdinname);
508 if (error)
509 return error;
510#else
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100511 /* Check if this is the standard input device. */
512 if (strcmp(stdinname, DEVNAME))
513 return 1;
514
515 /* Reassign the console */
516 if (overwrite_console())
517 return 1;
518
519 error = console_assign(stdin, DEVNAME);
520 if (error)
521 return error;
amartin@nvidia.comfb3ef642011-12-23 10:29:48 +0000522#endif
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100523
524 return 1;
wdenkaffae2b2002-08-17 09:36:01 +0000525 }
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100526
527 /* No USB Keyboard found */
wdenkaffae2b2002-08-17 09:36:01 +0000528 return -1;
529}
530
Marek Vasut9a8c72a2011-10-10 16:34:26 +0100531/* Deregister the keyboard. */
Hans de Goede8a8a2252014-09-20 16:54:38 +0200532int usb_kbd_deregister(int force)
wdenkaffae2b2002-08-17 09:36:01 +0000533{
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200534#ifdef CONFIG_SYS_STDIO_DEREGISTER
Hans de Goededfe5b1c2014-09-24 14:06:08 +0200535 struct stdio_dev *dev;
536 struct usb_device *usb_kbd_dev;
537 struct usb_kbd_pdata *data;
538
539 dev = stdio_get_by_name(DEVNAME);
540 if (dev) {
541 usb_kbd_dev = (struct usb_device *)dev->priv;
542 data = usb_kbd_dev->privptr;
543 if (stdio_deregister_dev(dev, force) != 0)
544 return 1;
Hans de Goede8e553112014-09-24 14:06:11 +0200545#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
546 destroy_int_queue(usb_kbd_dev, data->intq);
547#endif
Hans de Goededfe5b1c2014-09-24 14:06:08 +0200548 free(data->new);
549 free(data);
550 }
Hans de Goede0ea09df2014-09-20 16:54:34 +0200551
552 return 0;
Jean-Christophe PLAGNIOL-VILLARDfea91ed2008-12-02 21:58:04 +0100553#else
554 return 1;
555#endif
wdenkaffae2b2002-08-17 09:36:01 +0000556}