blob: 741a93a3eb6197eeae387b8445d63f7964d846b9 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Device driver for the via-cuda on Apple Powermacs.
3 *
4 * The VIA (versatile interface adapter) interfaces to the CUDA,
5 * a 6805 microprocessor core which controls the ADB (Apple Desktop
6 * Bus) which connects to the keyboard and mouse. The CUDA also
7 * controls system power and the RTC (real time clock) chip.
8 *
9 * Copyright (C) 1996 Paul Mackerras.
10 */
11#include <stdarg.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/types.h>
13#include <linux/errno.h>
14#include <linux/kernel.h>
15#include <linux/delay.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include <linux/adb.h>
17#include <linux/cuda.h>
18#include <linux/spinlock.h>
19#include <linux/interrupt.h>
20#ifdef CONFIG_PPC
21#include <asm/prom.h>
22#include <asm/machdep.h>
23#else
24#include <asm/macintosh.h>
25#include <asm/macints.h>
26#include <asm/machw.h>
27#include <asm/mac_via.h>
28#endif
29#include <asm/io.h>
30#include <asm/system.h>
31#include <linux/init.h>
32
33static volatile unsigned char __iomem *via;
34static DEFINE_SPINLOCK(cuda_lock);
35
Linus Torvalds1da177e2005-04-16 15:20:36 -070036/* VIA registers - spaced 0x200 bytes apart */
37#define RS 0x200 /* skip between registers */
38#define B 0 /* B-side data */
39#define A RS /* A-side data */
40#define DIRB (2*RS) /* B-side direction (1=output) */
41#define DIRA (3*RS) /* A-side direction (1=output) */
42#define T1CL (4*RS) /* Timer 1 ctr/latch (low 8 bits) */
43#define T1CH (5*RS) /* Timer 1 counter (high 8 bits) */
44#define T1LL (6*RS) /* Timer 1 latch (low 8 bits) */
45#define T1LH (7*RS) /* Timer 1 latch (high 8 bits) */
46#define T2CL (8*RS) /* Timer 2 ctr/latch (low 8 bits) */
47#define T2CH (9*RS) /* Timer 2 counter (high 8 bits) */
48#define SR (10*RS) /* Shift register */
49#define ACR (11*RS) /* Auxiliary control register */
50#define PCR (12*RS) /* Peripheral control register */
51#define IFR (13*RS) /* Interrupt flag register */
52#define IER (14*RS) /* Interrupt enable register */
53#define ANH (15*RS) /* A-side data, no handshake */
54
55/* Bits in B data register: all active low */
56#define TREQ 0x08 /* Transfer request (input) */
57#define TACK 0x10 /* Transfer acknowledge (output) */
58#define TIP 0x20 /* Transfer in progress (output) */
59
60/* Bits in ACR */
61#define SR_CTRL 0x1c /* Shift register control bits */
62#define SR_EXT 0x0c /* Shift on external clock */
63#define SR_OUT 0x10 /* Shift out if 1 */
64
65/* Bits in IFR and IER */
66#define IER_SET 0x80 /* set bits in IER */
67#define IER_CLR 0 /* clear bits in IER */
68#define SR_INT 0x04 /* Shift register full/empty */
69
70static enum cuda_state {
71 idle,
72 sent_first_byte,
73 sending,
74 reading,
75 read_done,
76 awaiting_reply
77} cuda_state;
78
79static struct adb_request *current_req;
80static struct adb_request *last_req;
81static unsigned char cuda_rbuf[16];
82static unsigned char *reply_ptr;
83static int reading_reply;
84static int data_index;
Finn Thain0251c382007-05-01 22:33:00 +020085static int cuda_irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086#ifdef CONFIG_PPC
87static struct device_node *vias;
88#endif
Olaf Hering87275852007-02-10 21:35:12 +010089static int cuda_fully_inited;
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
91#ifdef CONFIG_ADB
92static int cuda_probe(void);
93static int cuda_init(void);
94static int cuda_send_request(struct adb_request *req, int sync);
95static int cuda_adb_autopoll(int devs);
96static int cuda_reset_adb_bus(void);
97#endif /* CONFIG_ADB */
98
99static int cuda_init_via(void);
100static void cuda_start(void);
David Howells7d12e782006-10-05 14:55:46 +0100101static irqreturn_t cuda_interrupt(int irq, void *arg);
102static void cuda_input(unsigned char *buf, int nb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103void cuda_poll(void);
104static int cuda_write(struct adb_request *req);
105
106int cuda_request(struct adb_request *req,
107 void (*done)(struct adb_request *), int nbytes, ...);
108
109#ifdef CONFIG_ADB
110struct adb_driver via_cuda_driver = {
111 "CUDA",
112 cuda_probe,
113 cuda_init,
114 cuda_send_request,
115 cuda_adb_autopoll,
116 cuda_poll,
117 cuda_reset_adb_bus
118};
119#endif /* CONFIG_ADB */
120
121#ifdef CONFIG_PPC
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100122int __init find_via_cuda(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 struct adb_request req;
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100125 phys_addr_t taddr;
Jeremy Kerr018a3d12006-07-12 15:40:29 +1000126 const u32 *reg;
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100127 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
129 if (vias != 0)
130 return 1;
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100131 vias = of_find_node_by_name(NULL, "via-cuda");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 if (vias == 0)
133 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
Stephen Rothwell01b27262007-04-27 13:41:15 +1000135 reg = of_get_property(vias, "reg", NULL);
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100136 if (reg == NULL) {
137 printk(KERN_ERR "via-cuda: No \"reg\" property !\n");
138 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 }
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100140 taddr = of_translate_address(vias, reg);
141 if (taddr == 0) {
142 printk(KERN_ERR "via-cuda: Can't translate address !\n");
143 goto fail;
144 }
145 via = ioremap(taddr, 0x2000);
146 if (via == NULL) {
147 printk(KERN_ERR "via-cuda: Can't map address !\n");
148 goto fail;
149 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
151 cuda_state = idle;
152 sys_ctrler = SYS_CTRLER_CUDA;
153
154 err = cuda_init_via();
155 if (err) {
156 printk(KERN_ERR "cuda_init_via() failed\n");
157 via = NULL;
158 return 0;
159 }
160
161 /* Clear and enable interrupts, but only on PPC. On 68K it's done */
162 /* for us by the main VIA driver in arch/m68k/mac/via.c */
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 out_8(&via[IFR], 0x7f); /* clear interrupts by writing 1s */
165 out_8(&via[IER], IER_SET|SR_INT); /* enable interrupt from SR */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
167 /* enable autopoll */
168 cuda_request(&req, NULL, 3, CUDA_PACKET, CUDA_AUTOPOLL, 1);
169 while (!req.complete)
170 cuda_poll();
171
172 return 1;
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100173
174 fail:
175 of_node_put(vias);
176 vias = NULL;
177 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178}
179#endif /* CONFIG_PPC */
180
181static int __init via_cuda_start(void)
182{
183 if (via == NULL)
184 return -ENODEV;
185
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000186#ifdef CONFIG_MAC
Finn Thain0251c382007-05-01 22:33:00 +0200187 cuda_irq = IRQ_MAC_ADB;
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000188#else /* CONFIG_MAC */
Finn Thain0251c382007-05-01 22:33:00 +0200189 cuda_irq = irq_of_parse_and_map(vias, 0);
190 if (cuda_irq == NO_IRQ) {
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000191 printk(KERN_ERR "via-cuda: can't map interrupts for %s\n",
192 vias->full_name);
193 return -ENODEV;
194 }
Finn Thain0251c382007-05-01 22:33:00 +0200195#endif /* CONFIG_MAC */
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +1000196
Finn Thain0251c382007-05-01 22:33:00 +0200197 if (request_irq(cuda_irq, cuda_interrupt, 0, "ADB", cuda_interrupt)) {
198 printk(KERN_ERR "via-cuda: can't request irq %d\n", cuda_irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 return -EAGAIN;
200 }
201
202 printk("Macintosh CUDA driver v0.5 for Unified ADB.\n");
203
204 cuda_fully_inited = 1;
205 return 0;
206}
207
208device_initcall(via_cuda_start);
209
210#ifdef CONFIG_ADB
211static int
212cuda_probe(void)
213{
214#ifdef CONFIG_PPC
215 if (sys_ctrler != SYS_CTRLER_CUDA)
216 return -ENODEV;
217#else
218 if (macintosh_config->adb_type != MAC_ADB_CUDA)
219 return -ENODEV;
220 via = via1;
221#endif
222 return 0;
223}
224
225static int __init
226cuda_init(void)
227{
228#ifdef CONFIG_PPC
229 if (via == NULL)
230 return -ENODEV;
231 return 0;
232#else
233 int err = cuda_init_via();
234 if (err) {
235 printk(KERN_ERR "cuda_init_via() failed\n");
236 return -ENODEV;
237 }
Finn Thain0251c382007-05-01 22:33:00 +0200238 out_8(&via[IER], IER_SET|SR_INT); /* enable interrupt from SR */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239
240 return via_cuda_start();
241#endif
242}
243#endif /* CONFIG_ADB */
244
245#define WAIT_FOR(cond, what) \
246 do { \
247 int x; \
248 for (x = 1000; !(cond); --x) { \
249 if (x == 0) { \
250 printk("Timeout waiting for " what "\n"); \
251 return -ENXIO; \
252 } \
253 udelay(100); \
254 } \
255 } while (0)
256
257static int
258cuda_init_via(void)
259{
260 out_8(&via[DIRB], (in_8(&via[DIRB]) | TACK | TIP) & ~TREQ); /* TACK & TIP out */
261 out_8(&via[B], in_8(&via[B]) | TACK | TIP); /* negate them */
262 out_8(&via[ACR] ,(in_8(&via[ACR]) & ~SR_CTRL) | SR_EXT); /* SR data in */
263 (void)in_8(&via[SR]); /* clear any left-over data */
Finn Thain0251c382007-05-01 22:33:00 +0200264#ifdef CONFIG_PPC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 out_8(&via[IER], 0x7f); /* disable interrupts from VIA */
266 (void)in_8(&via[IER]);
Finn Thain0251c382007-05-01 22:33:00 +0200267#else
268 out_8(&via[IER], SR_INT); /* disable SR interrupt from VIA */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269#endif
270
271 /* delay 4ms and then clear any pending interrupt */
272 mdelay(4);
273 (void)in_8(&via[SR]);
Finn Thain0251c382007-05-01 22:33:00 +0200274 out_8(&via[IFR], SR_INT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
276 /* sync with the CUDA - assert TACK without TIP */
277 out_8(&via[B], in_8(&via[B]) & ~TACK);
278
279 /* wait for the CUDA to assert TREQ in response */
280 WAIT_FOR((in_8(&via[B]) & TREQ) == 0, "CUDA response to sync");
281
282 /* wait for the interrupt and then clear it */
283 WAIT_FOR(in_8(&via[IFR]) & SR_INT, "CUDA response to sync (2)");
284 (void)in_8(&via[SR]);
Finn Thain0251c382007-05-01 22:33:00 +0200285 out_8(&via[IFR], SR_INT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286
287 /* finish the sync by negating TACK */
288 out_8(&via[B], in_8(&via[B]) | TACK);
289
290 /* wait for the CUDA to negate TREQ and the corresponding interrupt */
291 WAIT_FOR(in_8(&via[B]) & TREQ, "CUDA response to sync (3)");
292 WAIT_FOR(in_8(&via[IFR]) & SR_INT, "CUDA response to sync (4)");
293 (void)in_8(&via[SR]);
Finn Thain0251c382007-05-01 22:33:00 +0200294 out_8(&via[IFR], SR_INT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 out_8(&via[B], in_8(&via[B]) | TIP); /* should be unnecessary */
296
297 return 0;
298}
299
300#ifdef CONFIG_ADB
301/* Send an ADB command */
302static int
303cuda_send_request(struct adb_request *req, int sync)
304{
305 int i;
306
307 if ((via == NULL) || !cuda_fully_inited) {
308 req->complete = 1;
309 return -ENXIO;
310 }
311
312 req->reply_expected = 1;
313
314 i = cuda_write(req);
315 if (i)
316 return i;
317
318 if (sync) {
319 while (!req->complete)
320 cuda_poll();
321 }
322 return 0;
323}
324
325
326/* Enable/disable autopolling */
327static int
328cuda_adb_autopoll(int devs)
329{
330 struct adb_request req;
331
332 if ((via == NULL) || !cuda_fully_inited)
333 return -ENXIO;
334
335 cuda_request(&req, NULL, 3, CUDA_PACKET, CUDA_AUTOPOLL, (devs? 1: 0));
336 while (!req.complete)
337 cuda_poll();
338 return 0;
339}
340
341/* Reset adb bus - how do we do this?? */
342static int
343cuda_reset_adb_bus(void)
344{
345 struct adb_request req;
346
347 if ((via == NULL) || !cuda_fully_inited)
348 return -ENXIO;
349
350 cuda_request(&req, NULL, 2, ADB_PACKET, 0); /* maybe? */
351 while (!req.complete)
352 cuda_poll();
353 return 0;
354}
355#endif /* CONFIG_ADB */
356/* Construct and send a cuda request */
357int
358cuda_request(struct adb_request *req, void (*done)(struct adb_request *),
359 int nbytes, ...)
360{
361 va_list list;
362 int i;
363
364 if (via == NULL) {
365 req->complete = 1;
366 return -ENXIO;
367 }
368
369 req->nbytes = nbytes;
370 req->done = done;
371 va_start(list, nbytes);
372 for (i = 0; i < nbytes; ++i)
373 req->data[i] = va_arg(list, int);
374 va_end(list);
375 req->reply_expected = 1;
376 return cuda_write(req);
377}
378
379static int
380cuda_write(struct adb_request *req)
381{
382 unsigned long flags;
383
384 if (req->nbytes < 2 || req->data[0] > CUDA_PACKET) {
385 req->complete = 1;
386 return -EINVAL;
387 }
388 req->next = NULL;
389 req->sent = 0;
390 req->complete = 0;
391 req->reply_len = 0;
392
393 spin_lock_irqsave(&cuda_lock, flags);
394 if (current_req != 0) {
395 last_req->next = req;
396 last_req = req;
397 } else {
398 current_req = req;
399 last_req = req;
400 if (cuda_state == idle)
401 cuda_start();
402 }
403 spin_unlock_irqrestore(&cuda_lock, flags);
404
405 return 0;
406}
407
408static void
409cuda_start(void)
410{
411 struct adb_request *req;
412
413 /* assert cuda_state == idle */
414 /* get the packet to send */
415 req = current_req;
416 if (req == 0)
417 return;
418 if ((in_8(&via[B]) & TREQ) == 0)
419 return; /* a byte is coming in from the CUDA */
420
421 /* set the shift register to shift out and send a byte */
422 out_8(&via[ACR], in_8(&via[ACR]) | SR_OUT);
423 out_8(&via[SR], req->data[0]);
424 out_8(&via[B], in_8(&via[B]) & ~TIP);
425 cuda_state = sent_first_byte;
426}
427
428void
429cuda_poll(void)
430{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 /* cuda_interrupt only takes a normal lock, we disable
432 * interrupts here to avoid re-entering and thus deadlocking.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 */
Finn Thain0251c382007-05-01 22:33:00 +0200434 disable_irq(cuda_irq);
Olof Johansson49f19ce2006-10-05 20:31:10 -0500435 cuda_interrupt(0, NULL);
Finn Thain0251c382007-05-01 22:33:00 +0200436 enable_irq(cuda_irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437}
438
439static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100440cuda_interrupt(int irq, void *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441{
442 int status;
443 struct adb_request *req = NULL;
444 unsigned char ibuf[16];
445 int ibuf_len = 0;
446 int complete = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
448 spin_lock(&cuda_lock);
449
Finn Thain0251c382007-05-01 22:33:00 +0200450 /* On powermacs, this handler is registered for the VIA IRQ. But it uses
451 * just the shift register IRQ -- other VIA interrupt sources are disabled.
452 * On m68k macs, the VIA IRQ sources are dispatched individually. Unless
453 * we are polling, the shift register IRQ flag has already been cleared.
454 */
455
456#ifdef CONFIG_MAC
457 if (!arg)
458#endif
459 {
460 if ((in_8(&via[IFR]) & SR_INT) == 0) {
461 spin_unlock(&cuda_lock);
462 return IRQ_NONE;
463 } else {
464 out_8(&via[IFR], SR_INT);
465 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 }
467
468 status = (~in_8(&via[B]) & (TIP|TREQ)) | (in_8(&via[ACR]) & SR_OUT);
469 /* printk("cuda_interrupt: state=%d status=%x\n", cuda_state, status); */
470 switch (cuda_state) {
471 case idle:
472 /* CUDA has sent us the first byte of data - unsolicited */
473 if (status != TREQ)
474 printk("cuda: state=idle, status=%x\n", status);
475 (void)in_8(&via[SR]);
476 out_8(&via[B], in_8(&via[B]) & ~TIP);
477 cuda_state = reading;
478 reply_ptr = cuda_rbuf;
479 reading_reply = 0;
480 break;
481
482 case awaiting_reply:
483 /* CUDA has sent us the first byte of data of a reply */
484 if (status != TREQ)
485 printk("cuda: state=awaiting_reply, status=%x\n", status);
486 (void)in_8(&via[SR]);
487 out_8(&via[B], in_8(&via[B]) & ~TIP);
488 cuda_state = reading;
489 reply_ptr = current_req->reply;
490 reading_reply = 1;
491 break;
492
493 case sent_first_byte:
494 if (status == TREQ + TIP + SR_OUT) {
495 /* collision */
496 out_8(&via[ACR], in_8(&via[ACR]) & ~SR_OUT);
497 (void)in_8(&via[SR]);
498 out_8(&via[B], in_8(&via[B]) | TIP | TACK);
499 cuda_state = idle;
500 } else {
501 /* assert status == TIP + SR_OUT */
502 if (status != TIP + SR_OUT)
503 printk("cuda: state=sent_first_byte status=%x\n", status);
504 out_8(&via[SR], current_req->data[1]);
505 out_8(&via[B], in_8(&via[B]) ^ TACK);
506 data_index = 2;
507 cuda_state = sending;
508 }
509 break;
510
511 case sending:
512 req = current_req;
513 if (data_index >= req->nbytes) {
514 out_8(&via[ACR], in_8(&via[ACR]) & ~SR_OUT);
515 (void)in_8(&via[SR]);
516 out_8(&via[B], in_8(&via[B]) | TACK | TIP);
517 req->sent = 1;
518 if (req->reply_expected) {
519 cuda_state = awaiting_reply;
520 } else {
521 current_req = req->next;
522 complete = 1;
523 /* not sure about this */
524 cuda_state = idle;
525 cuda_start();
526 }
527 } else {
528 out_8(&via[SR], req->data[data_index++]);
529 out_8(&via[B], in_8(&via[B]) ^ TACK);
530 }
531 break;
532
533 case reading:
534 *reply_ptr++ = in_8(&via[SR]);
535 if (status == TIP) {
536 /* that's all folks */
537 out_8(&via[B], in_8(&via[B]) | TACK | TIP);
538 cuda_state = read_done;
539 } else {
540 /* assert status == TIP | TREQ */
541 if (status != TIP + TREQ)
542 printk("cuda: state=reading status=%x\n", status);
543 out_8(&via[B], in_8(&via[B]) ^ TACK);
544 }
545 break;
546
547 case read_done:
548 (void)in_8(&via[SR]);
549 if (reading_reply) {
550 req = current_req;
551 req->reply_len = reply_ptr - req->reply;
552 if (req->data[0] == ADB_PACKET) {
553 /* Have to adjust the reply from ADB commands */
554 if (req->reply_len <= 2 || (req->reply[1] & 2) != 0) {
555 /* the 0x2 bit indicates no response */
556 req->reply_len = 0;
557 } else {
558 /* leave just the command and result bytes in the reply */
559 req->reply_len -= 2;
560 memmove(req->reply, req->reply + 2, req->reply_len);
561 }
562 }
563 current_req = req->next;
564 complete = 1;
565 } else {
566 /* This is tricky. We must break the spinlock to call
567 * cuda_input. However, doing so means we might get
568 * re-entered from another CPU getting an interrupt
569 * or calling cuda_poll(). I ended up using the stack
570 * (it's only for 16 bytes) and moving the actual
571 * call to cuda_input to outside of the lock.
572 */
573 ibuf_len = reply_ptr - cuda_rbuf;
574 memcpy(ibuf, cuda_rbuf, ibuf_len);
575 }
576 if (status == TREQ) {
577 out_8(&via[B], in_8(&via[B]) & ~TIP);
578 cuda_state = reading;
579 reply_ptr = cuda_rbuf;
580 reading_reply = 0;
581 } else {
582 cuda_state = idle;
583 cuda_start();
584 }
585 break;
586
587 default:
588 printk("cuda_interrupt: unknown cuda_state %d?\n", cuda_state);
589 }
590 spin_unlock(&cuda_lock);
591 if (complete && req) {
592 void (*done)(struct adb_request *) = req->done;
593 mb();
594 req->complete = 1;
595 /* Here, we assume that if the request has a done member, the
596 * struct request will survive to setting req->complete to 1
597 */
598 if (done)
599 (*done)(req);
600 }
601 if (ibuf_len)
David Howells7d12e782006-10-05 14:55:46 +0100602 cuda_input(ibuf, ibuf_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 return IRQ_HANDLED;
604}
605
606static void
David Howells7d12e782006-10-05 14:55:46 +0100607cuda_input(unsigned char *buf, int nb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608{
609 int i;
610
611 switch (buf[0]) {
612 case ADB_PACKET:
613#ifdef CONFIG_XMON
614 if (nb == 5 && buf[2] == 0x2c) {
615 extern int xmon_wants_key, xmon_adb_keycode;
616 if (xmon_wants_key) {
617 xmon_adb_keycode = buf[3];
618 return;
619 }
620 }
621#endif /* CONFIG_XMON */
622#ifdef CONFIG_ADB
David Howells7d12e782006-10-05 14:55:46 +0100623 adb_input(buf+2, nb-2, buf[1] & 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624#endif /* CONFIG_ADB */
625 break;
626
627 default:
628 printk("data from cuda (%d bytes):", nb);
629 for (i = 0; i < nb; ++i)
630 printk(" %.2x", buf[i]);
631 printk("\n");
632 }
633}