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Commit | Line | Data |
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affae2bf WD |
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 | * | |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
affae2bf WD |
9 | */ |
10 | #include <common.h> | |
0ea09dfe | 11 | #include <errno.h> |
9a8c72a6 | 12 | #include <malloc.h> |
52cb4d4f | 13 | #include <stdio_dev.h> |
c918261c | 14 | #include <asm/byteorder.h> |
affae2bf | 15 | |
affae2bf WD |
16 | #include <usb.h> |
17 | ||
affae2bf | 18 | /* |
00b7d6ec | 19 | * If overwrite_console returns 1, the stdin, stderr and stdout |
affae2bf WD |
20 | * are switched to the serial port, else the settings in the |
21 | * environment are used | |
22 | */ | |
6d0f6bcf | 23 | #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE |
00b7d6ec | 24 | extern int overwrite_console(void); |
affae2bf | 25 | #else |
00b7d6ec | 26 | int overwrite_console(void) |
affae2bf | 27 | { |
00b7d6ec | 28 | return 0; |
affae2bf WD |
29 | } |
30 | #endif | |
31 | ||
9a8c72a6 MV |
32 | /* Keyboard sampling rate */ |
33 | #define REPEAT_RATE (40 / 4) /* 40msec -> 25cps */ | |
34 | #define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */ | |
affae2bf WD |
35 | |
36 | #define NUM_LOCK 0x53 | |
00b7d6ec MV |
37 | #define CAPS_LOCK 0x39 |
38 | #define SCROLL_LOCK 0x47 | |
affae2bf | 39 | |
affae2bf | 40 | /* Modifier bits */ |
9a8c72a6 MV |
41 | #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) | |
49 | ||
50 | /* Size of the keyboard buffer */ | |
51 | #define USB_KBD_BUFFER_LEN 0x20 | |
52 | ||
53 | /* Device name */ | |
00b7d6ec | 54 | #define DEVNAME "usbkbd" |
affae2bf | 55 | |
9a8c72a6 MV |
56 | /* Keyboard maps */ |
57 | static const unsigned char usb_kbd_numkey[] = { | |
00b7d6ec MV |
58 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', |
59 | '\r', 0x1b, '\b', '\t', ' ', '-', '=', '[', ']', | |
60 | '\\', '#', ';', '\'', '`', ',', '.', '/' | |
affae2bf | 61 | }; |
9a8c72a6 | 62 | static const unsigned char usb_kbd_numkey_shifted[] = { |
00b7d6ec MV |
63 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', |
64 | '\r', 0x1b, '\b', '\t', ' ', '_', '+', '{', '}', | |
65 | '|', '~', ':', '"', '~', '<', '>', '?' | |
affae2bf WD |
66 | }; |
67 | ||
d53da847 VP |
68 | static 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 | ||
4151a400 AM |
74 | /* |
75 | * 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 | */ | |
79 | static const unsigned char usb_kbd_arrow[] = { | |
80 | 0x6, 0x2, 0xe, 0x10 | |
81 | }; | |
82 | ||
9a8c72a6 MV |
83 | /* |
84 | * 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) | |
48c8073e | 91 | |
9a8c72a6 MV |
92 | #define USB_KBD_LEDMASK \ |
93 | (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK) | |
48c8073e | 94 | |
08a98b89 AC |
95 | /* |
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 | ||
9a8c72a6 MV |
101 | struct usb_kbd_pdata { |
102 | uint32_t repeat_delay; | |
affae2bf | 103 | |
9a8c72a6 MV |
104 | uint32_t usb_in_pointer; |
105 | uint32_t usb_out_pointer; | |
106 | uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN]; | |
48c8073e | 107 | |
d7475386 | 108 | uint8_t *new; |
08a98b89 | 109 | uint8_t old[USB_KBD_BOOT_REPORT_SIZE]; |
48c8073e | 110 | |
9a8c72a6 MV |
111 | uint8_t flags; |
112 | }; | |
48c8073e | 113 | |
07551f23 JL |
114 | extern int __maybe_unused net_busy_flag; |
115 | ||
116 | /* The period of time between two calls of usb_kbd_testc(). */ | |
117 | static unsigned long __maybe_unused kbd_testc_tms; | |
118 | ||
9a8c72a6 MV |
119 | /* Generic keyboard event polling. */ |
120 | void usb_kbd_generic_poll(void) | |
affae2bf | 121 | { |
48c8073e MV |
122 | struct stdio_dev *dev; |
123 | struct usb_device *usb_kbd_dev; | |
9a8c72a6 MV |
124 | struct usb_kbd_pdata *data; |
125 | struct usb_interface *iface; | |
126 | struct usb_endpoint_descriptor *ep; | |
127 | int pipe; | |
128 | int maxp; | |
48c8073e | 129 | |
9a8c72a6 MV |
130 | /* Get the pointer to USB Keyboard device pointer */ |
131 | dev = stdio_get_by_name(DEVNAME); | |
48c8073e | 132 | usb_kbd_dev = (struct usb_device *)dev->priv; |
9a8c72a6 MV |
133 | data = usb_kbd_dev->privptr; |
134 | iface = &usb_kbd_dev->config.if_desc[0]; | |
135 | ep = &iface->ep_desc[0]; | |
136 | pipe = usb_rcvintpipe(usb_kbd_dev, ep->bEndpointAddress); | |
48c8073e | 137 | |
9a8c72a6 MV |
138 | /* Submit a interrupt transfer request */ |
139 | maxp = usb_maxpacket(usb_kbd_dev, pipe); | |
140 | usb_submit_int_msg(usb_kbd_dev, pipe, data->new, | |
08a98b89 AC |
141 | min(maxp, USB_KBD_BOOT_REPORT_SIZE), |
142 | ep->bInterval); | |
affae2bf WD |
143 | } |
144 | ||
9a8c72a6 MV |
145 | /* Puts character in the queue and sets up the in and out pointer. */ |
146 | static void usb_kbd_put_queue(struct usb_kbd_pdata *data, char c) | |
affae2bf | 147 | { |
9a8c72a6 MV |
148 | if (data->usb_in_pointer == USB_KBD_BUFFER_LEN - 1) { |
149 | /* Check for buffer full. */ | |
150 | if (data->usb_out_pointer == 0) | |
151 | return; | |
affae2bf | 152 | |
9a8c72a6 MV |
153 | data->usb_in_pointer = 0; |
154 | } else { | |
155 | /* Check for buffer full. */ | |
156 | if (data->usb_in_pointer == data->usb_out_pointer - 1) | |
157 | return; | |
affae2bf | 158 | |
9a8c72a6 MV |
159 | data->usb_in_pointer++; |
160 | } | |
affae2bf | 161 | |
9a8c72a6 | 162 | data->usb_kbd_buffer[data->usb_in_pointer] = c; |
affae2bf WD |
163 | } |
164 | ||
9a8c72a6 MV |
165 | /* |
166 | * Set the LEDs. Since this is used in the irq routine, the control job is | |
167 | * issued with a timeout of 0. This means, that the job is queued without | |
168 | * waiting for job completion. | |
affae2bf | 169 | */ |
affae2bf WD |
170 | static void usb_kbd_setled(struct usb_device *dev) |
171 | { | |
9a8c72a6 MV |
172 | struct usb_interface *iface = &dev->config.if_desc[0]; |
173 | struct usb_kbd_pdata *data = dev->privptr; | |
9b239381 | 174 | ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN); |
9a8c72a6 | 175 | |
9b239381 | 176 | *leds = data->flags & USB_KBD_LEDMASK; |
affae2bf WD |
177 | usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
178 | USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
9b239381 | 179 | 0x200, iface->desc.bInterfaceNumber, leds, 1, 0); |
affae2bf WD |
180 | } |
181 | ||
9a8c72a6 | 182 | #define CAPITAL_MASK 0x20 |
affae2bf | 183 | /* Translate the scancode in ASCII */ |
9a8c72a6 MV |
184 | static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode, |
185 | unsigned char modifier, int pressed) | |
affae2bf | 186 | { |
9a8c72a6 | 187 | uint8_t keycode = 0; |
affae2bf | 188 | |
9a8c72a6 | 189 | /* Key released */ |
00b7d6ec | 190 | if (pressed == 0) { |
9a8c72a6 | 191 | data->repeat_delay = 0; |
affae2bf WD |
192 | return 0; |
193 | } | |
9a8c72a6 | 194 | |
00b7d6ec | 195 | if (pressed == 2) { |
9a8c72a6 MV |
196 | data->repeat_delay++; |
197 | if (data->repeat_delay < REPEAT_DELAY) | |
affae2bf | 198 | return 0; |
9a8c72a6 MV |
199 | |
200 | data->repeat_delay = REPEAT_DELAY; | |
affae2bf | 201 | } |
9a8c72a6 MV |
202 | |
203 | /* Alphanumeric values */ | |
204 | if ((scancode > 3) && (scancode <= 0x1d)) { | |
205 | keycode = scancode - 4 + 'a'; | |
206 | ||
207 | if (data->flags & USB_KBD_CAPSLOCK) | |
00b7d6ec | 208 | keycode &= ~CAPITAL_MASK; |
9a8c72a6 MV |
209 | |
210 | if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) { | |
211 | /* Handle CAPSLock + Shift pressed simultaneously */ | |
00b7d6ec | 212 | if (keycode & CAPITAL_MASK) |
00b7d6ec | 213 | keycode &= ~CAPITAL_MASK; |
affae2bf | 214 | else |
00b7d6ec | 215 | keycode |= CAPITAL_MASK; |
affae2bf WD |
216 | } |
217 | } | |
9a8c72a6 MV |
218 | |
219 | if ((scancode > 0x1d) && (scancode < 0x3a)) { | |
220 | /* Shift pressed */ | |
221 | if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) | |
222 | keycode = usb_kbd_numkey_shifted[scancode - 0x1e]; | |
223 | else | |
224 | keycode = usb_kbd_numkey[scancode - 0x1e]; | |
affae2bf | 225 | } |
4785a694 | 226 | |
4151a400 AM |
227 | /* Arrow keys */ |
228 | if ((scancode >= 0x4f) && (scancode <= 0x52)) | |
229 | keycode = usb_kbd_arrow[scancode - 0x4f]; | |
230 | ||
d53da847 VP |
231 | /* Numeric keypad */ |
232 | if ((scancode >= 0x54) && (scancode <= 0x67)) | |
233 | keycode = usb_kbd_num_keypad[scancode - 0x54]; | |
234 | ||
9a8c72a6 | 235 | if (data->flags & USB_KBD_CTRL) |
4785a694 ZW |
236 | keycode = scancode - 0x3; |
237 | ||
00b7d6ec MV |
238 | if (pressed == 1) { |
239 | if (scancode == NUM_LOCK) { | |
9a8c72a6 | 240 | data->flags ^= USB_KBD_NUMLOCK; |
affae2bf WD |
241 | return 1; |
242 | } | |
9a8c72a6 | 243 | |
00b7d6ec | 244 | if (scancode == CAPS_LOCK) { |
9a8c72a6 | 245 | data->flags ^= USB_KBD_CAPSLOCK; |
affae2bf WD |
246 | return 1; |
247 | } | |
00b7d6ec | 248 | if (scancode == SCROLL_LOCK) { |
9a8c72a6 | 249 | data->flags ^= USB_KBD_SCROLLLOCK; |
affae2bf WD |
250 | return 1; |
251 | } | |
252 | } | |
9a8c72a6 MV |
253 | |
254 | /* Report keycode if any */ | |
255 | if (keycode) { | |
ceb4972a | 256 | debug("%c", keycode); |
9a8c72a6 | 257 | usb_kbd_put_queue(data, keycode); |
affae2bf | 258 | } |
9a8c72a6 | 259 | |
affae2bf WD |
260 | return 0; |
261 | } | |
262 | ||
9a8c72a6 MV |
263 | static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up) |
264 | { | |
265 | uint32_t res = 0; | |
266 | struct usb_kbd_pdata *data = dev->privptr; | |
267 | uint8_t *new; | |
268 | uint8_t *old; | |
269 | ||
270 | if (up) { | |
271 | new = data->old; | |
272 | old = data->new; | |
273 | } else { | |
274 | new = data->new; | |
275 | old = data->old; | |
276 | } | |
277 | ||
08a98b89 AC |
278 | if ((old[i] > 3) && |
279 | (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) == | |
280 | new + USB_KBD_BOOT_REPORT_SIZE)) { | |
9a8c72a6 | 281 | res |= usb_kbd_translate(data, old[i], data->new[0], up); |
08a98b89 | 282 | } |
9a8c72a6 MV |
283 | |
284 | return res; | |
285 | } | |
286 | ||
affae2bf | 287 | /* Interrupt service routine */ |
48c8073e | 288 | static int usb_kbd_irq_worker(struct usb_device *dev) |
affae2bf | 289 | { |
9a8c72a6 MV |
290 | struct usb_kbd_pdata *data = dev->privptr; |
291 | int i, res = 0; | |
4785a694 | 292 | |
9a8c72a6 MV |
293 | /* No combo key pressed */ |
294 | if (data->new[0] == 0x00) | |
295 | data->flags &= ~USB_KBD_CTRL; | |
296 | /* Left or Right Ctrl pressed */ | |
297 | else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR)) | |
298 | data->flags |= USB_KBD_CTRL; | |
00b7d6ec | 299 | |
08a98b89 | 300 | for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) { |
9a8c72a6 MV |
301 | res |= usb_kbd_service_key(dev, i, 0); |
302 | res |= usb_kbd_service_key(dev, i, 1); | |
affae2bf | 303 | } |
00b7d6ec | 304 | |
9a8c72a6 MV |
305 | /* Key is still pressed */ |
306 | if ((data->new[2] > 3) && (data->old[2] == data->new[2])) | |
307 | res |= usb_kbd_translate(data, data->new[2], data->new[0], 2); | |
308 | ||
00b7d6ec | 309 | if (res == 1) |
affae2bf | 310 | usb_kbd_setled(dev); |
00b7d6ec | 311 | |
08a98b89 | 312 | memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE); |
00b7d6ec | 313 | |
9a8c72a6 | 314 | return 1; |
affae2bf WD |
315 | } |
316 | ||
9a8c72a6 | 317 | /* Keyboard interrupt handler */ |
48c8073e MV |
318 | static int usb_kbd_irq(struct usb_device *dev) |
319 | { | |
08a98b89 AC |
320 | if ((dev->irq_status != 0) || |
321 | (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) { | |
ceb4972a VG |
322 | debug("USB KBD: Error %lX, len %d\n", |
323 | dev->irq_status, dev->irq_act_len); | |
48c8073e MV |
324 | return 1; |
325 | } | |
326 | ||
327 | return usb_kbd_irq_worker(dev); | |
328 | } | |
329 | ||
9a8c72a6 MV |
330 | /* Interrupt polling */ |
331 | static inline void usb_kbd_poll_for_event(struct usb_device *dev) | |
332 | { | |
333 | #if defined(CONFIG_SYS_USB_EVENT_POLL) | |
f9636e8d AM |
334 | struct usb_interface *iface; |
335 | struct usb_endpoint_descriptor *ep; | |
336 | struct usb_kbd_pdata *data; | |
337 | int pipe; | |
338 | int maxp; | |
339 | ||
340 | /* Get the pointer to USB Keyboard device pointer */ | |
341 | data = dev->privptr; | |
342 | iface = &dev->config.if_desc[0]; | |
343 | ep = &iface->ep_desc[0]; | |
344 | pipe = usb_rcvintpipe(dev, ep->bEndpointAddress); | |
345 | ||
346 | /* Submit a interrupt transfer request */ | |
347 | maxp = usb_maxpacket(dev, pipe); | |
348 | usb_submit_int_msg(dev, pipe, &data->new[0], | |
08a98b89 AC |
349 | min(maxp, USB_KBD_BOOT_REPORT_SIZE), |
350 | ep->bInterval); | |
f9636e8d | 351 | |
9a8c72a6 MV |
352 | usb_kbd_irq_worker(dev); |
353 | #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) | |
354 | struct usb_interface *iface; | |
355 | struct usb_kbd_pdata *data = dev->privptr; | |
356 | iface = &dev->config.if_desc[0]; | |
357 | usb_get_report(dev, iface->desc.bInterfaceNumber, | |
08a98b89 AC |
358 | 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE); |
359 | if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) | |
9a8c72a6 MV |
360 | usb_kbd_irq_worker(dev); |
361 | #endif | |
362 | } | |
363 | ||
364 | /* test if a character is in the queue */ | |
709ea543 | 365 | static int usb_kbd_testc(struct stdio_dev *sdev) |
9a8c72a6 MV |
366 | { |
367 | struct stdio_dev *dev; | |
368 | struct usb_device *usb_kbd_dev; | |
369 | struct usb_kbd_pdata *data; | |
370 | ||
c95e2b9e JL |
371 | #ifdef CONFIG_CMD_NET |
372 | /* | |
373 | * If net_busy_flag is 1, NET transfer is running, | |
374 | * then we check key-pressed every second (first check may be | |
375 | * less than 1 second) to improve TFTP booting performance. | |
376 | */ | |
377 | if (net_busy_flag && (get_timer(kbd_testc_tms) < CONFIG_SYS_HZ)) | |
378 | return 0; | |
379 | kbd_testc_tms = get_timer(0); | |
380 | #endif | |
9a8c72a6 MV |
381 | dev = stdio_get_by_name(DEVNAME); |
382 | usb_kbd_dev = (struct usb_device *)dev->priv; | |
383 | data = usb_kbd_dev->privptr; | |
384 | ||
385 | usb_kbd_poll_for_event(usb_kbd_dev); | |
386 | ||
387 | return !(data->usb_in_pointer == data->usb_out_pointer); | |
388 | } | |
389 | ||
390 | /* gets the character from the queue */ | |
709ea543 | 391 | static int usb_kbd_getc(struct stdio_dev *sdev) |
9a8c72a6 MV |
392 | { |
393 | struct stdio_dev *dev; | |
394 | struct usb_device *usb_kbd_dev; | |
395 | struct usb_kbd_pdata *data; | |
396 | ||
397 | dev = stdio_get_by_name(DEVNAME); | |
398 | usb_kbd_dev = (struct usb_device *)dev->priv; | |
399 | data = usb_kbd_dev->privptr; | |
400 | ||
401 | while (data->usb_in_pointer == data->usb_out_pointer) | |
402 | usb_kbd_poll_for_event(usb_kbd_dev); | |
403 | ||
404 | if (data->usb_out_pointer == USB_KBD_BUFFER_LEN - 1) | |
405 | data->usb_out_pointer = 0; | |
406 | else | |
407 | data->usb_out_pointer++; | |
408 | ||
409 | return data->usb_kbd_buffer[data->usb_out_pointer]; | |
410 | } | |
411 | ||
412 | /* probes the USB device dev for keyboard type. */ | |
affae2bf WD |
413 | static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) |
414 | { | |
8f8bd565 | 415 | struct usb_interface *iface; |
affae2bf | 416 | struct usb_endpoint_descriptor *ep; |
9a8c72a6 | 417 | struct usb_kbd_pdata *data; |
00b7d6ec | 418 | int pipe, maxp; |
affae2bf | 419 | |
00b7d6ec MV |
420 | if (dev->descriptor.bNumConfigurations != 1) |
421 | return 0; | |
9a8c72a6 | 422 | |
affae2bf WD |
423 | iface = &dev->config.if_desc[ifnum]; |
424 | ||
8f8bd565 TR |
425 | if (iface->desc.bInterfaceClass != 3) |
426 | return 0; | |
9a8c72a6 | 427 | |
8f8bd565 TR |
428 | if (iface->desc.bInterfaceSubClass != 1) |
429 | return 0; | |
9a8c72a6 | 430 | |
8f8bd565 TR |
431 | if (iface->desc.bInterfaceProtocol != 1) |
432 | return 0; | |
9a8c72a6 | 433 | |
8f8bd565 TR |
434 | if (iface->desc.bNumEndpoints != 1) |
435 | return 0; | |
affae2bf WD |
436 | |
437 | ep = &iface->ep_desc[0]; | |
438 | ||
9a8c72a6 | 439 | /* Check if endpoint 1 is interrupt endpoint */ |
00b7d6ec MV |
440 | if (!(ep->bEndpointAddress & 0x80)) |
441 | return 0; | |
9a8c72a6 | 442 | |
00b7d6ec MV |
443 | if ((ep->bmAttributes & 3) != 3) |
444 | return 0; | |
9a8c72a6 | 445 | |
ceb4972a | 446 | debug("USB KBD: found set protocol...\n"); |
9a8c72a6 MV |
447 | |
448 | data = malloc(sizeof(struct usb_kbd_pdata)); | |
449 | if (!data) { | |
450 | printf("USB KBD: Error allocating private data\n"); | |
451 | return 0; | |
452 | } | |
453 | ||
454 | /* Clear private data */ | |
455 | memset(data, 0, sizeof(struct usb_kbd_pdata)); | |
456 | ||
d7475386 | 457 | /* allocate input buffer aligned and sized to USB DMA alignment */ |
08a98b89 AC |
458 | data->new = memalign(USB_DMA_MINALIGN, |
459 | roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN)); | |
d7475386 | 460 | |
9a8c72a6 MV |
461 | /* Insert private data into USB device structure */ |
462 | dev->privptr = data; | |
463 | ||
464 | /* Set IRQ handler */ | |
465 | dev->irq_handle = usb_kbd_irq; | |
466 | ||
affae2bf WD |
467 | pipe = usb_rcvintpipe(dev, ep->bEndpointAddress); |
468 | maxp = usb_maxpacket(dev, pipe); | |
9a8c72a6 MV |
469 | |
470 | /* We found a USB Keyboard, install it. */ | |
471 | usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0); | |
472 | ||
ceb4972a | 473 | debug("USB KBD: found set idle...\n"); |
9a8c72a6 MV |
474 | usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0); |
475 | ||
ceb4972a | 476 | debug("USB KBD: enable interrupt pipe...\n"); |
08a98b89 AC |
477 | if (usb_submit_int_msg(dev, pipe, data->new, |
478 | min(maxp, USB_KBD_BOOT_REPORT_SIZE), | |
5da2dc97 VP |
479 | ep->bInterval) < 0) { |
480 | printf("Failed to get keyboard state from device %04x:%04x\n", | |
481 | dev->descriptor.idVendor, dev->descriptor.idProduct); | |
482 | /* Abort, we don't want to use that non-functional keyboard. */ | |
483 | return 0; | |
484 | } | |
9a8c72a6 MV |
485 | |
486 | /* Success. */ | |
affae2bf WD |
487 | return 1; |
488 | } | |
489 | ||
9a8c72a6 MV |
490 | /* Search for keyboard and register it if found. */ |
491 | int drv_usb_kbd_init(void) | |
492 | { | |
3f78a280 | 493 | struct stdio_dev usb_kbd_dev; |
9a8c72a6 MV |
494 | struct usb_device *dev; |
495 | char *stdinname = getenv("stdin"); | |
496 | int error, i; | |
497 | ||
498 | /* Scan all USB Devices */ | |
499 | for (i = 0; i < USB_MAX_DEVICE; i++) { | |
500 | /* Get USB device. */ | |
501 | dev = usb_get_dev_index(i); | |
502 | if (!dev) | |
503 | return -1; | |
504 | ||
505 | if (dev->devnum == -1) | |
506 | continue; | |
507 | ||
508 | /* Try probing the keyboard */ | |
509 | if (usb_kbd_probe(dev, 0) != 1) | |
510 | continue; | |
511 | ||
9a8c72a6 | 512 | /* Register the keyboard */ |
ceb4972a | 513 | debug("USB KBD: register.\n"); |
9a8c72a6 MV |
514 | memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev)); |
515 | strcpy(usb_kbd_dev.name, DEVNAME); | |
516 | usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; | |
9a8c72a6 MV |
517 | usb_kbd_dev.getc = usb_kbd_getc; |
518 | usb_kbd_dev.tstc = usb_kbd_testc; | |
519 | usb_kbd_dev.priv = (void *)dev; | |
520 | error = stdio_register(&usb_kbd_dev); | |
521 | if (error) | |
522 | return error; | |
523 | ||
fb3ef649 AM |
524 | #ifdef CONFIG_CONSOLE_MUX |
525 | error = iomux_doenv(stdin, stdinname); | |
526 | if (error) | |
527 | return error; | |
528 | #else | |
9a8c72a6 MV |
529 | /* Check if this is the standard input device. */ |
530 | if (strcmp(stdinname, DEVNAME)) | |
531 | return 1; | |
532 | ||
533 | /* Reassign the console */ | |
534 | if (overwrite_console()) | |
535 | return 1; | |
536 | ||
537 | error = console_assign(stdin, DEVNAME); | |
538 | if (error) | |
539 | return error; | |
fb3ef649 | 540 | #endif |
9a8c72a6 MV |
541 | |
542 | return 1; | |
543 | } | |
544 | ||
545 | /* No USB Keyboard found */ | |
546 | return -1; | |
547 | } | |
548 | ||
549 | /* Deregister the keyboard. */ | |
550 | int usb_kbd_deregister(void) | |
551 | { | |
552 | #ifdef CONFIG_SYS_STDIO_DEREGISTER | |
32d01926 | 553 | int ret = stdio_deregister(DEVNAME, 0); |
0ea09dfe HG |
554 | if (ret && ret != -ENODEV) |
555 | return ret; | |
556 | ||
557 | return 0; | |
9a8c72a6 MV |
558 | #else |
559 | return 1; | |
560 | #endif | |
561 | } |