Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/drivers/macintosh/via-cuda.c
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
File MIME type: text/plain
File size: 15871 byte(s)
Tag kernel26-2.6.12-alx-r9
1 | /* |
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> |
12 | #include <linux/config.h> |
13 | #include <linux/types.h> |
14 | #include <linux/errno.h> |
15 | #include <linux/kernel.h> |
16 | #include <linux/delay.h> |
17 | #include <linux/sched.h> |
18 | #include <linux/adb.h> |
19 | #include <linux/cuda.h> |
20 | #include <linux/spinlock.h> |
21 | #include <linux/interrupt.h> |
22 | #ifdef CONFIG_PPC |
23 | #include <asm/prom.h> |
24 | #include <asm/machdep.h> |
25 | #else |
26 | #include <asm/macintosh.h> |
27 | #include <asm/macints.h> |
28 | #include <asm/machw.h> |
29 | #include <asm/mac_via.h> |
30 | #endif |
31 | #include <asm/io.h> |
32 | #include <asm/system.h> |
33 | #include <linux/init.h> |
34 | |
35 | static volatile unsigned char __iomem *via; |
36 | static DEFINE_SPINLOCK(cuda_lock); |
37 | |
38 | #ifdef CONFIG_MAC |
39 | #define CUDA_IRQ IRQ_MAC_ADB |
40 | #define __openfirmware |
41 | #define eieio() |
42 | #else |
43 | #define CUDA_IRQ vias->intrs[0].line |
44 | #endif |
45 | |
46 | /* VIA registers - spaced 0x200 bytes apart */ |
47 | #define RS 0x200 /* skip between registers */ |
48 | #define B 0 /* B-side data */ |
49 | #define A RS /* A-side data */ |
50 | #define DIRB (2*RS) /* B-side direction (1=output) */ |
51 | #define DIRA (3*RS) /* A-side direction (1=output) */ |
52 | #define T1CL (4*RS) /* Timer 1 ctr/latch (low 8 bits) */ |
53 | #define T1CH (5*RS) /* Timer 1 counter (high 8 bits) */ |
54 | #define T1LL (6*RS) /* Timer 1 latch (low 8 bits) */ |
55 | #define T1LH (7*RS) /* Timer 1 latch (high 8 bits) */ |
56 | #define T2CL (8*RS) /* Timer 2 ctr/latch (low 8 bits) */ |
57 | #define T2CH (9*RS) /* Timer 2 counter (high 8 bits) */ |
58 | #define SR (10*RS) /* Shift register */ |
59 | #define ACR (11*RS) /* Auxiliary control register */ |
60 | #define PCR (12*RS) /* Peripheral control register */ |
61 | #define IFR (13*RS) /* Interrupt flag register */ |
62 | #define IER (14*RS) /* Interrupt enable register */ |
63 | #define ANH (15*RS) /* A-side data, no handshake */ |
64 | |
65 | /* Bits in B data register: all active low */ |
66 | #define TREQ 0x08 /* Transfer request (input) */ |
67 | #define TACK 0x10 /* Transfer acknowledge (output) */ |
68 | #define TIP 0x20 /* Transfer in progress (output) */ |
69 | |
70 | /* Bits in ACR */ |
71 | #define SR_CTRL 0x1c /* Shift register control bits */ |
72 | #define SR_EXT 0x0c /* Shift on external clock */ |
73 | #define SR_OUT 0x10 /* Shift out if 1 */ |
74 | |
75 | /* Bits in IFR and IER */ |
76 | #define IER_SET 0x80 /* set bits in IER */ |
77 | #define IER_CLR 0 /* clear bits in IER */ |
78 | #define SR_INT 0x04 /* Shift register full/empty */ |
79 | |
80 | static enum cuda_state { |
81 | idle, |
82 | sent_first_byte, |
83 | sending, |
84 | reading, |
85 | read_done, |
86 | awaiting_reply |
87 | } cuda_state; |
88 | |
89 | static struct adb_request *current_req; |
90 | static struct adb_request *last_req; |
91 | static unsigned char cuda_rbuf[16]; |
92 | static unsigned char *reply_ptr; |
93 | static int reading_reply; |
94 | static int data_index; |
95 | #ifdef CONFIG_PPC |
96 | static struct device_node *vias; |
97 | #endif |
98 | static int cuda_fully_inited = 0; |
99 | |
100 | #ifdef CONFIG_ADB |
101 | static int cuda_probe(void); |
102 | static int cuda_init(void); |
103 | static int cuda_send_request(struct adb_request *req, int sync); |
104 | static int cuda_adb_autopoll(int devs); |
105 | static int cuda_reset_adb_bus(void); |
106 | #endif /* CONFIG_ADB */ |
107 | |
108 | static int cuda_init_via(void); |
109 | static void cuda_start(void); |
110 | static irqreturn_t cuda_interrupt(int irq, void *arg, struct pt_regs *regs); |
111 | static void cuda_input(unsigned char *buf, int nb, struct pt_regs *regs); |
112 | void cuda_poll(void); |
113 | static int cuda_write(struct adb_request *req); |
114 | |
115 | int cuda_request(struct adb_request *req, |
116 | void (*done)(struct adb_request *), int nbytes, ...); |
117 | |
118 | #ifdef CONFIG_ADB |
119 | struct adb_driver via_cuda_driver = { |
120 | "CUDA", |
121 | cuda_probe, |
122 | cuda_init, |
123 | cuda_send_request, |
124 | cuda_adb_autopoll, |
125 | cuda_poll, |
126 | cuda_reset_adb_bus |
127 | }; |
128 | #endif /* CONFIG_ADB */ |
129 | |
130 | #ifdef CONFIG_PPC |
131 | int __init |
132 | find_via_cuda(void) |
133 | { |
134 | int err; |
135 | struct adb_request req; |
136 | |
137 | if (vias != 0) |
138 | return 1; |
139 | vias = find_devices("via-cuda"); |
140 | if (vias == 0) |
141 | return 0; |
142 | if (vias->next != 0) |
143 | printk(KERN_WARNING "Warning: only using 1st via-cuda\n"); |
144 | |
145 | #if 0 |
146 | { int i; |
147 | |
148 | printk("find_via_cuda: node = %p, addrs =", vias->node); |
149 | for (i = 0; i < vias->n_addrs; ++i) |
150 | printk(" %x(%x)", vias->addrs[i].address, vias->addrs[i].size); |
151 | printk(", intrs ="); |
152 | for (i = 0; i < vias->n_intrs; ++i) |
153 | printk(" %x", vias->intrs[i].line); |
154 | printk("\n"); } |
155 | #endif |
156 | |
157 | if (vias->n_addrs != 1 || vias->n_intrs != 1) { |
158 | printk(KERN_ERR "via-cuda: expecting 1 address (%d) and 1 interrupt (%d)\n", |
159 | vias->n_addrs, vias->n_intrs); |
160 | if (vias->n_addrs < 1 || vias->n_intrs < 1) |
161 | return 0; |
162 | } |
163 | via = ioremap(vias->addrs->address, 0x2000); |
164 | |
165 | cuda_state = idle; |
166 | sys_ctrler = SYS_CTRLER_CUDA; |
167 | |
168 | err = cuda_init_via(); |
169 | if (err) { |
170 | printk(KERN_ERR "cuda_init_via() failed\n"); |
171 | via = NULL; |
172 | return 0; |
173 | } |
174 | |
175 | /* Clear and enable interrupts, but only on PPC. On 68K it's done */ |
176 | /* for us by the main VIA driver in arch/m68k/mac/via.c */ |
177 | |
178 | #ifndef CONFIG_MAC |
179 | out_8(&via[IFR], 0x7f); /* clear interrupts by writing 1s */ |
180 | out_8(&via[IER], IER_SET|SR_INT); /* enable interrupt from SR */ |
181 | #endif |
182 | |
183 | /* enable autopoll */ |
184 | cuda_request(&req, NULL, 3, CUDA_PACKET, CUDA_AUTOPOLL, 1); |
185 | while (!req.complete) |
186 | cuda_poll(); |
187 | |
188 | return 1; |
189 | } |
190 | #endif /* CONFIG_PPC */ |
191 | |
192 | static int __init via_cuda_start(void) |
193 | { |
194 | if (via == NULL) |
195 | return -ENODEV; |
196 | |
197 | #ifdef CONFIG_PPC |
198 | request_OF_resource(vias, 0, NULL); |
199 | #endif |
200 | |
201 | if (request_irq(CUDA_IRQ, cuda_interrupt, 0, "ADB", cuda_interrupt)) { |
202 | printk(KERN_ERR "cuda_init: can't get irq %d\n", CUDA_IRQ); |
203 | return -EAGAIN; |
204 | } |
205 | |
206 | printk("Macintosh CUDA driver v0.5 for Unified ADB.\n"); |
207 | |
208 | cuda_fully_inited = 1; |
209 | return 0; |
210 | } |
211 | |
212 | device_initcall(via_cuda_start); |
213 | |
214 | #ifdef CONFIG_ADB |
215 | static int |
216 | cuda_probe(void) |
217 | { |
218 | #ifdef CONFIG_PPC |
219 | if (sys_ctrler != SYS_CTRLER_CUDA) |
220 | return -ENODEV; |
221 | #else |
222 | if (macintosh_config->adb_type != MAC_ADB_CUDA) |
223 | return -ENODEV; |
224 | via = via1; |
225 | #endif |
226 | return 0; |
227 | } |
228 | |
229 | static int __init |
230 | cuda_init(void) |
231 | { |
232 | #ifdef CONFIG_PPC |
233 | if (via == NULL) |
234 | return -ENODEV; |
235 | return 0; |
236 | #else |
237 | int err = cuda_init_via(); |
238 | if (err) { |
239 | printk(KERN_ERR "cuda_init_via() failed\n"); |
240 | return -ENODEV; |
241 | } |
242 | |
243 | return via_cuda_start(); |
244 | #endif |
245 | } |
246 | #endif /* CONFIG_ADB */ |
247 | |
248 | #define WAIT_FOR(cond, what) \ |
249 | do { \ |
250 | int x; \ |
251 | for (x = 1000; !(cond); --x) { \ |
252 | if (x == 0) { \ |
253 | printk("Timeout waiting for " what "\n"); \ |
254 | return -ENXIO; \ |
255 | } \ |
256 | udelay(100); \ |
257 | } \ |
258 | } while (0) |
259 | |
260 | static int |
261 | cuda_init_via(void) |
262 | { |
263 | out_8(&via[DIRB], (in_8(&via[DIRB]) | TACK | TIP) & ~TREQ); /* TACK & TIP out */ |
264 | out_8(&via[B], in_8(&via[B]) | TACK | TIP); /* negate them */ |
265 | out_8(&via[ACR] ,(in_8(&via[ACR]) & ~SR_CTRL) | SR_EXT); /* SR data in */ |
266 | (void)in_8(&via[SR]); /* clear any left-over data */ |
267 | #ifndef CONFIG_MAC |
268 | out_8(&via[IER], 0x7f); /* disable interrupts from VIA */ |
269 | (void)in_8(&via[IER]); |
270 | #endif |
271 | |
272 | /* delay 4ms and then clear any pending interrupt */ |
273 | mdelay(4); |
274 | (void)in_8(&via[SR]); |
275 | out_8(&via[IFR], in_8(&via[IFR]) & 0x7f); |
276 | |
277 | /* sync with the CUDA - assert TACK without TIP */ |
278 | out_8(&via[B], in_8(&via[B]) & ~TACK); |
279 | |
280 | /* wait for the CUDA to assert TREQ in response */ |
281 | WAIT_FOR((in_8(&via[B]) & TREQ) == 0, "CUDA response to sync"); |
282 | |
283 | /* wait for the interrupt and then clear it */ |
284 | WAIT_FOR(in_8(&via[IFR]) & SR_INT, "CUDA response to sync (2)"); |
285 | (void)in_8(&via[SR]); |
286 | out_8(&via[IFR], in_8(&via[IFR]) & 0x7f); |
287 | |
288 | /* finish the sync by negating TACK */ |
289 | out_8(&via[B], in_8(&via[B]) | TACK); |
290 | |
291 | /* wait for the CUDA to negate TREQ and the corresponding interrupt */ |
292 | WAIT_FOR(in_8(&via[B]) & TREQ, "CUDA response to sync (3)"); |
293 | WAIT_FOR(in_8(&via[IFR]) & SR_INT, "CUDA response to sync (4)"); |
294 | (void)in_8(&via[SR]); |
295 | out_8(&via[IFR], in_8(&via[IFR]) & 0x7f); |
296 | out_8(&via[B], in_8(&via[B]) | TIP); /* should be unnecessary */ |
297 | |
298 | return 0; |
299 | } |
300 | |
301 | #ifdef CONFIG_ADB |
302 | /* Send an ADB command */ |
303 | static int |
304 | cuda_send_request(struct adb_request *req, int sync) |
305 | { |
306 | int i; |
307 | |
308 | if ((via == NULL) || !cuda_fully_inited) { |
309 | req->complete = 1; |
310 | return -ENXIO; |
311 | } |
312 | |
313 | req->reply_expected = 1; |
314 | |
315 | i = cuda_write(req); |
316 | if (i) |
317 | return i; |
318 | |
319 | if (sync) { |
320 | while (!req->complete) |
321 | cuda_poll(); |
322 | } |
323 | return 0; |
324 | } |
325 | |
326 | |
327 | /* Enable/disable autopolling */ |
328 | static int |
329 | cuda_adb_autopoll(int devs) |
330 | { |
331 | struct adb_request req; |
332 | |
333 | if ((via == NULL) || !cuda_fully_inited) |
334 | return -ENXIO; |
335 | |
336 | cuda_request(&req, NULL, 3, CUDA_PACKET, CUDA_AUTOPOLL, (devs? 1: 0)); |
337 | while (!req.complete) |
338 | cuda_poll(); |
339 | return 0; |
340 | } |
341 | |
342 | /* Reset adb bus - how do we do this?? */ |
343 | static int |
344 | cuda_reset_adb_bus(void) |
345 | { |
346 | struct adb_request req; |
347 | |
348 | if ((via == NULL) || !cuda_fully_inited) |
349 | return -ENXIO; |
350 | |
351 | cuda_request(&req, NULL, 2, ADB_PACKET, 0); /* maybe? */ |
352 | while (!req.complete) |
353 | cuda_poll(); |
354 | return 0; |
355 | } |
356 | #endif /* CONFIG_ADB */ |
357 | /* Construct and send a cuda request */ |
358 | int |
359 | cuda_request(struct adb_request *req, void (*done)(struct adb_request *), |
360 | int nbytes, ...) |
361 | { |
362 | va_list list; |
363 | int i; |
364 | |
365 | if (via == NULL) { |
366 | req->complete = 1; |
367 | return -ENXIO; |
368 | } |
369 | |
370 | req->nbytes = nbytes; |
371 | req->done = done; |
372 | va_start(list, nbytes); |
373 | for (i = 0; i < nbytes; ++i) |
374 | req->data[i] = va_arg(list, int); |
375 | va_end(list); |
376 | req->reply_expected = 1; |
377 | return cuda_write(req); |
378 | } |
379 | |
380 | static int |
381 | cuda_write(struct adb_request *req) |
382 | { |
383 | unsigned long flags; |
384 | |
385 | if (req->nbytes < 2 || req->data[0] > CUDA_PACKET) { |
386 | req->complete = 1; |
387 | return -EINVAL; |
388 | } |
389 | req->next = NULL; |
390 | req->sent = 0; |
391 | req->complete = 0; |
392 | req->reply_len = 0; |
393 | |
394 | spin_lock_irqsave(&cuda_lock, flags); |
395 | if (current_req != 0) { |
396 | last_req->next = req; |
397 | last_req = req; |
398 | } else { |
399 | current_req = req; |
400 | last_req = req; |
401 | if (cuda_state == idle) |
402 | cuda_start(); |
403 | } |
404 | spin_unlock_irqrestore(&cuda_lock, flags); |
405 | |
406 | return 0; |
407 | } |
408 | |
409 | static void |
410 | cuda_start(void) |
411 | { |
412 | struct adb_request *req; |
413 | |
414 | /* assert cuda_state == idle */ |
415 | /* get the packet to send */ |
416 | req = current_req; |
417 | if (req == 0) |
418 | return; |
419 | if ((in_8(&via[B]) & TREQ) == 0) |
420 | return; /* a byte is coming in from the CUDA */ |
421 | |
422 | /* set the shift register to shift out and send a byte */ |
423 | out_8(&via[ACR], in_8(&via[ACR]) | SR_OUT); |
424 | out_8(&via[SR], req->data[0]); |
425 | out_8(&via[B], in_8(&via[B]) & ~TIP); |
426 | cuda_state = sent_first_byte; |
427 | } |
428 | |
429 | void |
430 | cuda_poll(void) |
431 | { |
432 | unsigned long flags; |
433 | |
434 | /* cuda_interrupt only takes a normal lock, we disable |
435 | * interrupts here to avoid re-entering and thus deadlocking. |
436 | * An option would be to disable only the IRQ source with |
437 | * disable_irq(), would that work on m68k ? --BenH |
438 | */ |
439 | local_irq_save(flags); |
440 | cuda_interrupt(0, NULL, NULL); |
441 | local_irq_restore(flags); |
442 | } |
443 | |
444 | static irqreturn_t |
445 | cuda_interrupt(int irq, void *arg, struct pt_regs *regs) |
446 | { |
447 | int status; |
448 | struct adb_request *req = NULL; |
449 | unsigned char ibuf[16]; |
450 | int ibuf_len = 0; |
451 | int complete = 0; |
452 | unsigned char virq; |
453 | |
454 | spin_lock(&cuda_lock); |
455 | |
456 | virq = in_8(&via[IFR]) & 0x7f; |
457 | out_8(&via[IFR], virq); |
458 | if ((virq & SR_INT) == 0) { |
459 | spin_unlock(&cuda_lock); |
460 | return IRQ_NONE; |
461 | } |
462 | |
463 | status = (~in_8(&via[B]) & (TIP|TREQ)) | (in_8(&via[ACR]) & SR_OUT); |
464 | /* printk("cuda_interrupt: state=%d status=%x\n", cuda_state, status); */ |
465 | switch (cuda_state) { |
466 | case idle: |
467 | /* CUDA has sent us the first byte of data - unsolicited */ |
468 | if (status != TREQ) |
469 | printk("cuda: state=idle, status=%x\n", status); |
470 | (void)in_8(&via[SR]); |
471 | out_8(&via[B], in_8(&via[B]) & ~TIP); |
472 | cuda_state = reading; |
473 | reply_ptr = cuda_rbuf; |
474 | reading_reply = 0; |
475 | break; |
476 | |
477 | case awaiting_reply: |
478 | /* CUDA has sent us the first byte of data of a reply */ |
479 | if (status != TREQ) |
480 | printk("cuda: state=awaiting_reply, status=%x\n", status); |
481 | (void)in_8(&via[SR]); |
482 | out_8(&via[B], in_8(&via[B]) & ~TIP); |
483 | cuda_state = reading; |
484 | reply_ptr = current_req->reply; |
485 | reading_reply = 1; |
486 | break; |
487 | |
488 | case sent_first_byte: |
489 | if (status == TREQ + TIP + SR_OUT) { |
490 | /* collision */ |
491 | out_8(&via[ACR], in_8(&via[ACR]) & ~SR_OUT); |
492 | (void)in_8(&via[SR]); |
493 | out_8(&via[B], in_8(&via[B]) | TIP | TACK); |
494 | cuda_state = idle; |
495 | } else { |
496 | /* assert status == TIP + SR_OUT */ |
497 | if (status != TIP + SR_OUT) |
498 | printk("cuda: state=sent_first_byte status=%x\n", status); |
499 | out_8(&via[SR], current_req->data[1]); |
500 | out_8(&via[B], in_8(&via[B]) ^ TACK); |
501 | data_index = 2; |
502 | cuda_state = sending; |
503 | } |
504 | break; |
505 | |
506 | case sending: |
507 | req = current_req; |
508 | if (data_index >= req->nbytes) { |
509 | out_8(&via[ACR], in_8(&via[ACR]) & ~SR_OUT); |
510 | (void)in_8(&via[SR]); |
511 | out_8(&via[B], in_8(&via[B]) | TACK | TIP); |
512 | req->sent = 1; |
513 | if (req->reply_expected) { |
514 | cuda_state = awaiting_reply; |
515 | } else { |
516 | current_req = req->next; |
517 | complete = 1; |
518 | /* not sure about this */ |
519 | cuda_state = idle; |
520 | cuda_start(); |
521 | } |
522 | } else { |
523 | out_8(&via[SR], req->data[data_index++]); |
524 | out_8(&via[B], in_8(&via[B]) ^ TACK); |
525 | } |
526 | break; |
527 | |
528 | case reading: |
529 | *reply_ptr++ = in_8(&via[SR]); |
530 | if (status == TIP) { |
531 | /* that's all folks */ |
532 | out_8(&via[B], in_8(&via[B]) | TACK | TIP); |
533 | cuda_state = read_done; |
534 | } else { |
535 | /* assert status == TIP | TREQ */ |
536 | if (status != TIP + TREQ) |
537 | printk("cuda: state=reading status=%x\n", status); |
538 | out_8(&via[B], in_8(&via[B]) ^ TACK); |
539 | } |
540 | break; |
541 | |
542 | case read_done: |
543 | (void)in_8(&via[SR]); |
544 | if (reading_reply) { |
545 | req = current_req; |
546 | req->reply_len = reply_ptr - req->reply; |
547 | if (req->data[0] == ADB_PACKET) { |
548 | /* Have to adjust the reply from ADB commands */ |
549 | if (req->reply_len <= 2 || (req->reply[1] & 2) != 0) { |
550 | /* the 0x2 bit indicates no response */ |
551 | req->reply_len = 0; |
552 | } else { |
553 | /* leave just the command and result bytes in the reply */ |
554 | req->reply_len -= 2; |
555 | memmove(req->reply, req->reply + 2, req->reply_len); |
556 | } |
557 | } |
558 | current_req = req->next; |
559 | complete = 1; |
560 | } else { |
561 | /* This is tricky. We must break the spinlock to call |
562 | * cuda_input. However, doing so means we might get |
563 | * re-entered from another CPU getting an interrupt |
564 | * or calling cuda_poll(). I ended up using the stack |
565 | * (it's only for 16 bytes) and moving the actual |
566 | * call to cuda_input to outside of the lock. |
567 | */ |
568 | ibuf_len = reply_ptr - cuda_rbuf; |
569 | memcpy(ibuf, cuda_rbuf, ibuf_len); |
570 | } |
571 | if (status == TREQ) { |
572 | out_8(&via[B], in_8(&via[B]) & ~TIP); |
573 | cuda_state = reading; |
574 | reply_ptr = cuda_rbuf; |
575 | reading_reply = 0; |
576 | } else { |
577 | cuda_state = idle; |
578 | cuda_start(); |
579 | } |
580 | break; |
581 | |
582 | default: |
583 | printk("cuda_interrupt: unknown cuda_state %d?\n", cuda_state); |
584 | } |
585 | spin_unlock(&cuda_lock); |
586 | if (complete && req) { |
587 | void (*done)(struct adb_request *) = req->done; |
588 | mb(); |
589 | req->complete = 1; |
590 | /* Here, we assume that if the request has a done member, the |
591 | * struct request will survive to setting req->complete to 1 |
592 | */ |
593 | if (done) |
594 | (*done)(req); |
595 | } |
596 | if (ibuf_len) |
597 | cuda_input(ibuf, ibuf_len, regs); |
598 | return IRQ_HANDLED; |
599 | } |
600 | |
601 | static void |
602 | cuda_input(unsigned char *buf, int nb, struct pt_regs *regs) |
603 | { |
604 | int i; |
605 | |
606 | switch (buf[0]) { |
607 | case ADB_PACKET: |
608 | #ifdef CONFIG_XMON |
609 | if (nb == 5 && buf[2] == 0x2c) { |
610 | extern int xmon_wants_key, xmon_adb_keycode; |
611 | if (xmon_wants_key) { |
612 | xmon_adb_keycode = buf[3]; |
613 | return; |
614 | } |
615 | } |
616 | #endif /* CONFIG_XMON */ |
617 | #ifdef CONFIG_ADB |
618 | adb_input(buf+2, nb-2, regs, buf[1] & 0x40); |
619 | #endif /* CONFIG_ADB */ |
620 | break; |
621 | |
622 | default: |
623 | printk("data from cuda (%d bytes):", nb); |
624 | for (i = 0; i < nb; ++i) |
625 | printk(" %.2x", buf[i]); |
626 | printk("\n"); |
627 | } |
628 | } |