File: /usr/src/linux/drivers/sbus/char/sunkbd.c
1 /* keyboard.c: Sun keyboard driver.
2 *
3 * Copyright (C) 1995, 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
4 *
5 * Added vuid event generation and /dev/kbd device for SunOS
6 * compatibility - Miguel (miguel@nuclecu.unam.mx)
7 *
8 * Added PCI 8042 controller support -DaveM
9 * Added Magic SysRq support -MJ
10 */
11
12 #include <linux/config.h>
13 #include <linux/kernel.h>
14 #include <linux/sched.h>
15 #include <linux/tty.h>
16 #include <linux/tty_flip.h>
17 #include <linux/mm.h>
18 #include <linux/ptrace.h>
19 #include <linux/signal.h>
20 #include <linux/string.h>
21 #include <linux/fcntl.h>
22 #include <linux/poll.h>
23 #include <linux/random.h>
24 #include <linux/delay.h>
25 #include <linux/init.h>
26 #include <linux/sysrq.h>
27 #include <linux/spinlock.h>
28 #include <linux/smp_lock.h>
29 #include <linux/devfs_fs_kernel.h>
30
31 #include <asm/kbio.h>
32 #include <asm/vuid_event.h>
33 #include <asm/bitops.h>
34 #include <asm/oplib.h>
35 #include <asm/uaccess.h>
36
37 #include <linux/kbd_kern.h>
38 #include <linux/kbd_diacr.h>
39 #include <linux/vt_kern.h>
40
41 #ifdef CONFIG_PCI
42 #include <linux/pci.h>
43 #include <asm/pbm.h>
44 #include <asm/ebus.h>
45 #endif
46
47 #include "sunkbd.h"
48
49 #define SIZE(x) (sizeof(x)/sizeof((x)[0]))
50
51 /* Define this one if you are making a new frame buffer driver */
52 /* it will not block the keyboard */
53 /* #define CODING_NEW_DRIVER */
54
55 /* KBD device number, temporal */
56 #define KBD_MAJOR 11
57
58 #define KBD_REPORT_ERR
59 #define KBD_REPORT_UNKN
60
61 #ifndef KBD_DEFMODE
62 #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
63 #endif
64
65 #ifndef KBD_DEFLEDS
66 /*
67 * Some laptops take the 789uiojklm,. keys as number pad when NumLock
68 * is on. This seems a good reason to start with NumLock off.
69 */
70 #define KBD_DEFLEDS 0
71 #endif
72
73 #ifndef KBD_DEFLOCK
74 #define KBD_DEFLOCK 0
75 #endif
76
77 extern void poke_blanked_console(void);
78 extern void ctrl_alt_del(void);
79 extern void reset_vc(unsigned int new_console);
80 extern void scrollback(int);
81 extern void scrollfront(int);
82
83 struct l1a_kbd_state l1a_state;
84
85 #ifndef CONFIG_PCI
86 DECLARE_WAIT_QUEUE_HEAD(keypress_wait);
87 #endif
88
89 int keyboard_wait_for_keypress(struct console *co)
90 {
91 sleep_on(&keypress_wait);
92 return 0;
93 }
94
95 static spinlock_t sunkbd_lock = SPIN_LOCK_UNLOCKED;
96
97 /*
98 * global state includes the following, and various static variables
99 * in this module: prev_scancode, shift_state, diacr, npadch, dead_key_next.
100 * (last_console is now a global variable)
101 */
102
103 /* shift state counters.. */
104 static unsigned char k_down[NR_SHIFT];
105 /* keyboard key bitmap */
106 static unsigned long key_down[256/BITS_PER_LONG];
107
108 void push_kbd (int scan);
109 int kbd_redirected;
110
111 static int dead_key_next;
112 /*
113 * In order to retrieve the shift_state (for the mouse server), either
114 * the variable must be global, or a new procedure must be created to
115 * return the value. I chose the former way.
116 */
117 #ifndef CONFIG_PCI
118 int shift_state;
119 struct kbd_struct kbd_table[MAX_NR_CONSOLES];
120 #endif
121 static int npadch = -1; /* -1 or number assembled on pad */
122 static unsigned char diacr;
123 static char rep; /* flag telling character repeat */
124 static struct tty_struct **ttytab;
125 static struct kbd_struct * kbd = kbd_table;
126 static struct tty_struct * tty;
127 static int compose_led_on;
128 static int kbd_delay_ticks = HZ / 5;
129 static int kbd_rate_ticks = HZ / 20;
130
131 void sun_compute_shiftstate(void);
132
133 typedef void (*k_hand)(unsigned char value, char up_flag);
134 typedef void (k_handfn)(unsigned char value, char up_flag);
135
136 static k_handfn
137 do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
138 do_meta, do_ascii, do_lock, do_lowercase, do_ignore;
139
140 static k_hand key_handler[16] = {
141 do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
142 do_meta, do_ascii, do_lock, do_lowercase,
143 do_ignore, do_ignore, do_ignore, do_ignore
144 };
145
146 typedef void (*void_fnp)(void);
147 typedef void (void_fn)(void);
148
149 static void_fn do_null, enter, show_ptregs, send_intr, lastcons, caps_toggle,
150 num, hold, scroll_forw, scroll_back, boot_it, caps_on, compose,
151 SAK, decr_console, incr_console, spawn_console, bare_num;
152
153 static void_fnp spec_fn_table[] = {
154 do_null, enter, show_ptregs, show_mem,
155 show_state, send_intr, lastcons, caps_toggle,
156 num, hold, scroll_forw, scroll_back,
157 boot_it, caps_on, compose, SAK,
158 decr_console, incr_console, spawn_console, bare_num
159 };
160
161 /* maximum values each key_handler can handle */
162 #ifndef CONFIG_PCI
163 const int max_vals[] = {
164 255, SIZE(func_table) - 1, SIZE(spec_fn_table) - 1, NR_PAD - 1,
165 NR_DEAD - 1, 255, 3, NR_SHIFT - 1,
166 255, NR_ASCII - 1, NR_LOCK - 1, 255,
167 NR_LOCK - 1
168 };
169
170 const int NR_TYPES = SIZE(max_vals);
171 #endif
172
173 static void put_queue(int);
174 static unsigned char handle_diacr(unsigned char);
175
176 /* pt_regs - set by keyboard_interrupt(), used by show_ptregs() */
177 static struct pt_regs * pt_regs;
178
179 #ifdef CONFIG_MAGIC_SYSRQ
180 unsigned char sun_sysrq_xlate[128] =
181 "\0\0\0\0\0\201\202\212\203\213\204\214\205\0\206\0" /* 0x00 - 0x0f */
182 "\207\210\211\0\0\0\0\0\0\0\0\0\0\03312" /* 0x10 - 0x1f */
183 "34567890-=`\177\0=/*" /* 0x20 - 0x2f */
184 "\0\0.\0\0\011qwertyuiop" /* 0x30 - 0x3f */
185 "[]\177\000789-\0\0\0\0\0asd" /* 0x40 - 0x4f */
186 "fghjkl;'\\\015\0154560\0" /* 0x50 - 0x5f */
187 "\0\0\0\0zxcvbnm,./\0\012" /* 0x60 - 0x6f */
188 "123\0\0\0\0\0\0 \0\0\0\0\0\0"; /* 0x70 - 0x7f */
189 #endif
190
191 volatile unsigned char sunkbd_layout;
192 volatile unsigned char sunkbd_type;
193 #define SUNKBD_TYPE2 0x02
194 #define SUNKBD_TYPE3 0x03
195 #define SUNKBD_TYPE4 0x04
196
197 #define SUNKBD_LOUT_TYP4 0x00
198 #define SUNKBD_LOUT_TYP5_MASK 0x20
199
200 volatile int kbd_reset_pending;
201 volatile int kbd_layout_pending;
202
203 /* commands */
204 #define SKBDCMD_RESET 0x1
205 #define SKBDCMD_GLAYOUT 0xf
206 #define SKBDCMD_BELLON 0x2
207 #define SKBDCMD_BELLOFF 0x3
208 #define SKBDCMD_SETLED 0xe
209 #define SKBDCMD_NOCLICK 0xb
210 #define SKBDCMD_CLICK 0xa
211
212 static unsigned char sunkbd_clickp;
213
214 /* The led set commands require sending the SETLED byte then
215 * a byte encoding which led's to have set. Here are the bit
216 * values, a bit set = led-on.
217 */
218 #define LED_NLOCK 0x1 /* Num-lock */
219 #define LED_CMPOSE 0x2 /* Compose */
220 #define LED_SCRLCK 0x4 /* Scroll-lock */
221 #define LED_CLOCK 0x8 /* Caps-lock */
222
223 /* Special state characters */
224 #define SKBD_RESET 0xff
225 #define SKBD_ALLUP 0x7f
226 #define SKBD_LYOUT 0xfe
227
228 /* On the Sparc the keyboard could be one of two things.
229 * It could be a real keyboard speaking over one of the
230 * channels of the second zs8530 chip (other channel is
231 * used by the Sun mouse). Else we have serial console
232 * going, and thus the other zs8530 chip is who we speak
233 * to. Either way, we communicate through the zs8530
234 * driver for all our I/O.
235 */
236
237 #define SUNKBD_UBIT 0x80 /* If set, key went up */
238 #define SUNKBD_KMASK 0x7f /* Other bits are the keycode */
239
240 #define KEY_LSHIFT 0x81
241 #define KEY_RSHIFT 0x82
242 #define KEY_CONTROL 0x83
243 #define KEY_NILL 0x84
244 #define KEY_CAPSLOCK 0x85
245 #define KEY_ALT 0x86
246 #define KEY_L1 0x87
247
248 /* Due to sun_kbd_init() being called before rs_init(), and sun_kbd_init() doing:
249 *
250 * tasklet_enable(&keyboard_tasklet);
251 * tasklet_schedule(&keyboard_tasklet);
252 *
253 * this might well be called before some driver has claimed interest in
254 * handling the keyboard input/output. So we need to assign an initial nop.
255 */
256 static void nop_kbd_put_char(unsigned char c) { }
257 static void (*kbd_put_char)(unsigned char) = nop_kbd_put_char;
258
259 /* Must be invoked under sunkbd_lock. */
260 static inline void send_cmd(unsigned char c)
261 {
262 kbd_put_char(c);
263 }
264
265 /* kbd_bh() calls this to send the SKBDCMD_SETLED to the sun keyboard
266 * with the proper bit pattern for the leds to be set. It basically
267 * converts the kbd->ledflagstate values to corresponding sun kbd led
268 * bit value.
269 */
270 static inline unsigned char vcleds_to_sunkbd(unsigned char vcleds)
271 {
272 unsigned char retval = 0;
273
274 if(vcleds & (1<<VC_SCROLLOCK))
275 retval |= LED_SCRLCK;
276 if(vcleds & (1<<VC_NUMLOCK))
277 retval |= LED_NLOCK;
278 if(vcleds & (1<<VC_CAPSLOCK))
279 retval |= LED_CLOCK;
280 if(compose_led_on)
281 retval |= LED_CMPOSE;
282 return retval;
283 }
284
285 /*
286 * Translation of escaped scancodes to keycodes.
287 * This is now user-settable.
288 * The keycodes 1-88,96-111,119 are fairly standard, and
289 * should probably not be changed - changing might confuse X.
290 * X also interprets scancode 0x5d (KEY_Begin).
291 *
292 * For 1-88 keycode equals scancode.
293 */
294
295 #define E0_KPENTER 96
296 #define E0_RCTRL 97
297 #define E0_KPSLASH 98
298 #define E0_PRSCR 99
299 #define E0_RALT 100
300 #define E0_BREAK 101 /* (control-pause) */
301 #define E0_HOME 102
302 #define E0_UP 103
303 #define E0_PGUP 104
304 #define E0_LEFT 105
305 #define E0_RIGHT 106
306 #define E0_END 107
307 #define E0_DOWN 108
308 #define E0_PGDN 109
309 #define E0_INS 110
310 #define E0_DEL 111
311
312 #define E1_PAUSE 119
313
314 /*
315 * The keycodes below are randomly located in 89-95,112-118,120-127.
316 * They could be thrown away (and all occurrences below replaced by 0),
317 * but that would force many users to use the `setkeycodes' utility, where
318 * they needed not before. It does not matter that there are duplicates, as
319 * long as no duplication occurs for any single keyboard.
320 */
321 #define SC_LIM 89
322
323 #define FOCUS_PF1 85 /* actual code! */
324 #define FOCUS_PF2 89
325 #define FOCUS_PF3 90
326 #define FOCUS_PF4 91
327 #define FOCUS_PF5 92
328 #define FOCUS_PF6 93
329 #define FOCUS_PF7 94
330 #define FOCUS_PF8 95
331 #define FOCUS_PF9 120
332 #define FOCUS_PF10 121
333 #define FOCUS_PF11 122
334 #define FOCUS_PF12 123
335
336 #define JAP_86 124
337 /* tfj@olivia.ping.dk:
338 * The four keys are located over the numeric keypad, and are
339 * labelled A1-A4. It's an rc930 keyboard, from
340 * Regnecentralen/RC International, Now ICL.
341 * Scancodes: 59, 5a, 5b, 5c.
342 */
343 #define RGN1 124
344 #define RGN2 125
345 #define RGN3 126
346 #define RGN4 127
347
348 static unsigned char high_keys[128 - SC_LIM] = {
349 RGN1, RGN2, RGN3, RGN4, 0, 0, 0, /* 0x59-0x5f */
350 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
351 0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12, /* 0x68-0x6f */
352 0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3, /* 0x70-0x77 */
353 FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7, /* 0x78-0x7b */
354 FOCUS_PF8, JAP_86, FOCUS_PF10, 0 /* 0x7c-0x7f */
355 };
356
357 /* BTC */
358 #define E0_MACRO 112
359 /* LK450 */
360 #define E0_F13 113
361 #define E0_F14 114
362 #define E0_HELP 115
363 #define E0_DO 116
364 #define E0_F17 117
365 #define E0_KPMINPLUS 118
366 /*
367 * My OmniKey generates e0 4c for the "OMNI" key and the
368 * right alt key does nada. [kkoller@nyx10.cs.du.edu]
369 */
370 #define E0_OK 124
371 /*
372 * New microsoft keyboard is rumoured to have
373 * e0 5b (left window button), e0 5c (right window button),
374 * e0 5d (menu button). [or: LBANNER, RBANNER, RMENU]
375 * [or: Windows_L, Windows_R, TaskMan]
376 */
377 #define E0_MSLW 125
378 #define E0_MSRW 126
379 #define E0_MSTM 127
380
381 static unsigned char e0_keys[128] = {
382 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */
383 0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */
384 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */
385 0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */
386 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x27 */
387 0, 0, 0, 0, 0, 0, 0, 0, /* 0x28-0x2f */
388 0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR, /* 0x30-0x37 */
389 E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP, /* 0x38-0x3f */
390 E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME, /* 0x40-0x47 */
391 E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END,/* 0x48-0x4f */
392 E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0, /* 0x50-0x57 */
393 0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0, /* 0x58-0x5f */
394 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
395 0, 0, 0, 0, 0, 0, 0, E0_MACRO, /* 0x68-0x6f */
396 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70-0x77 */
397 0, 0, 0, 0, 0, 0, 0, 0 /* 0x78-0x7f */
398 };
399
400 /* we use this map to determine if a particular key should not be
401 autorepeated. We don't autorepeat CONTROL, LSHIFT, CAPS,
402 ALT, LMETA, RSHIFT, RMETA, ALTG and COMPOSE */
403 static unsigned char norepeat_keys[128] = {
404 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, /* 0x00-0x0f */
405 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x1f */
406 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x2f */
407 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30-0x3f */
408 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, /* 0x40-0x4f */
409 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50-0x5f */
410 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, /* 0x60-0x6f */
411 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, /* 0x70-0x7f */
412 };
413
414
415 int sun_setkeycode(unsigned int scancode, unsigned int keycode)
416 {
417 if (scancode < SC_LIM || scancode > 255 || keycode > 127)
418 return -EINVAL;
419 if (scancode < 128)
420 high_keys[scancode - SC_LIM] = keycode;
421 else
422 e0_keys[scancode - 128] = keycode;
423 return 0;
424 }
425
426 int sun_getkeycode(unsigned int scancode)
427 {
428 return
429 (scancode < SC_LIM || scancode > 255) ? -EINVAL :
430 (scancode < 128) ? high_keys[scancode - SC_LIM] :
431 e0_keys[scancode - 128];
432 }
433
434 static void __sunkbd_inchar(unsigned char ch, struct pt_regs *regs);
435 void sunkbd_inchar(unsigned char ch, struct pt_regs *regs);
436 static void keyboard_timer (unsigned long ignored);
437
438 static struct timer_list
439 auto_repeat_timer = { function: keyboard_timer };
440
441 /* Keeps track of the last pressed key */
442 static unsigned char last_keycode;
443
444 static void
445 keyboard_timer (unsigned long ignored)
446 {
447 unsigned long flags;
448
449 spin_lock_irqsave(&sunkbd_lock, flags);
450
451 /* Auto repeat: send regs = 0 to indicate autorepeat */
452 __sunkbd_inchar (last_keycode, 0);
453 del_timer (&auto_repeat_timer);
454 if (kbd_rate_ticks) {
455 auto_repeat_timer.expires = jiffies + kbd_rate_ticks;
456 add_timer (&auto_repeat_timer);
457 }
458
459 spin_unlock_irqrestore(&sunkbd_lock, flags);
460 }
461
462 #ifndef CONFIG_PCI
463 DECLARE_TASKLET_DISABLED(keyboard_tasklet, sun_kbd_bh, 0);
464 #endif
465
466 /* #define SKBD_DEBUG */
467 /* This is our keyboard 'interrupt' routine.
468 * Must run under sunkbd_lock.
469 */
470 static void __sunkbd_inchar(unsigned char ch, struct pt_regs *regs)
471 {
472 unsigned char keycode;
473 char up_flag; /* 0 or SUNKBD_UBIT */
474 char raw_mode;
475
476 if(ch == SKBD_RESET) {
477 kbd_reset_pending = 1;
478 goto out;
479 }
480 if(ch == SKBD_LYOUT) {
481 kbd_layout_pending = 1;
482 goto out;
483 }
484 if(kbd_reset_pending) {
485 sunkbd_type = ch;
486 kbd_reset_pending = 0;
487 if(ch == SUNKBD_TYPE4)
488 send_cmd(SKBDCMD_GLAYOUT);
489 goto out;
490 } else if(kbd_layout_pending) {
491 sunkbd_layout = ch;
492 kbd_layout_pending = 0;
493 goto out;
494 } else if(ch == SKBD_ALLUP) {
495 del_timer (&auto_repeat_timer);
496 memset(key_down, 0, sizeof(key_down));
497 sun_compute_shiftstate();
498 goto out;
499 }
500 #ifdef SKBD_DEBUG
501 if(ch == 0x7f)
502 printk("KBD<ALL KEYS UP>");
503 else
504 printk("KBD<%x %s>", ch,
505 ((ch&0x80) ? "UP" : "DOWN"));
506 #endif
507
508 /* Whee, a real character. */
509 if(regs) {
510 pt_regs = regs;
511 last_keycode = keycode = ch;
512 } else {
513 keycode = ch;
514 }
515
516 do_poke_blanked_console = 1;
517 schedule_console_callback();
518 add_keyboard_randomness(keycode);
519
520 tty = ttytab? ttytab[fg_console]: NULL;
521 if (tty && (!tty->driver_data)) {
522 /* This is to workaround ugly bug in tty_io.c, which
523 does not do locking when it should */
524 tty = NULL;
525 }
526 kbd = kbd_table + fg_console;
527 if((raw_mode = (kbd->kbdmode == VC_RAW))) {
528 if (kbd_redirected == fg_console+1)
529 push_kbd (keycode);
530 else
531 put_queue(keycode);
532 /* we do not return yet, because we want to maintain
533 * the key_down array, so that we have the correct
534 * values when finishing RAW mode or when changing VT's.
535 */
536 }
537 up_flag = (keycode & SUNKBD_UBIT); /* The 'up' bit */
538 keycode &= SUNKBD_KMASK; /* all the rest */
539 del_timer (&auto_repeat_timer);
540 if(up_flag) {
541 rep = 0;
542 clear_bit(keycode, key_down);
543 } else {
544 if (!norepeat_keys[keycode]) {
545 if (kbd_rate_ticks) {
546 auto_repeat_timer.expires =
547 jiffies + kbd_delay_ticks;
548 add_timer (&auto_repeat_timer);
549 }
550 }
551 rep = test_and_set_bit(keycode, key_down);
552 }
553
554 #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq hack */
555 if (l1a_state.l1_down) {
556 if (!up_flag)
557 handle_sysrq(sun_sysrq_xlate[keycode], pt_regs, kbd, tty);
558 goto out;
559 }
560 #endif
561
562 if(raw_mode)
563 goto out;
564
565 if(kbd->kbdmode == VC_MEDIUMRAW) {
566 put_queue(keycode + up_flag);
567 goto out;
568 }
569
570 /*
571 * Small change in philosophy: earlier we defined repetition by
572 * rep = keycode == prev_keycode;
573 * prev_keycode = keycode;
574 * but now by the fact that the depressed key was down already.
575 * Does this ever make a difference? Yes.
576 */
577
578 /*
579 * Repeat a key only if the input buffers are empty or the
580 * characters get echoed locally. This makes key repeat usable
581 * with slow applications and under heavy loads.
582 */
583 if (!rep ||
584 (vc_kbd_mode(kbd,VC_REPEAT) && tty &&
585 (L_ECHO(tty) || (tty->driver.chars_in_buffer(tty) == 0)))) {
586 u_short keysym;
587 u_char type;
588
589 /* the XOR below used to be an OR */
590 int shift_final = shift_state ^ kbd->lockstate ^ kbd->slockstate;
591 ushort *key_map = key_maps[shift_final];
592
593 if (key_map != NULL) {
594 keysym = key_map[keycode];
595 type = KTYP(keysym);
596
597 if (type >= 0xf0) {
598 type -= 0xf0;
599 if (type == KT_LETTER) {
600 type = KT_LATIN;
601 if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
602 key_map = key_maps[shift_final ^ (1<<KG_SHIFT)];
603 if (key_map)
604 keysym = key_map[keycode];
605 }
606 }
607 (*key_handler[type])(keysym & 0xff, up_flag);
608 if (type != KT_SLOCK)
609 kbd->slockstate = 0;
610 }
611 } else {
612 /* maybe beep? */
613 /* we have at least to update shift_state */
614 sun_compute_shiftstate();
615 }
616 }
617 out:
618 tasklet_schedule(&keyboard_tasklet);
619 }
620
621 void sunkbd_inchar(unsigned char ch, struct pt_regs *regs)
622 {
623 unsigned long flags;
624
625 spin_lock_irqsave(&sunkbd_lock, flags);
626 __sunkbd_inchar(ch, regs);
627 spin_unlock_irqrestore(&sunkbd_lock, flags);
628 }
629
630 static void put_queue(int ch)
631 {
632 wake_up(&keypress_wait);
633 if (tty) {
634 tty_insert_flip_char(tty, ch, 0);
635 con_schedule_flip(tty);
636 }
637 }
638
639 static void puts_queue(char *cp)
640 {
641 wake_up(&keypress_wait);
642 if (!tty)
643 return;
644
645 while (*cp) {
646 tty_insert_flip_char(tty, *cp, 0);
647 cp++;
648 }
649 con_schedule_flip(tty);
650 }
651
652 static void applkey(int key, char mode)
653 {
654 static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
655
656 buf[1] = (mode ? 'O' : '[');
657 buf[2] = key;
658 puts_queue(buf);
659 }
660
661 static void enter(void)
662 {
663 put_queue(13);
664 if (vc_kbd_mode(kbd,VC_CRLF))
665 put_queue(10);
666 }
667
668 static void caps_toggle(void)
669 {
670 if (rep)
671 return;
672 chg_vc_kbd_led(kbd, VC_CAPSLOCK);
673 }
674
675 static void caps_on(void)
676 {
677 if (rep)
678 return;
679 set_vc_kbd_led(kbd, VC_CAPSLOCK);
680 }
681
682 static void show_ptregs(void)
683 {
684 if (pt_regs)
685 show_regs(pt_regs);
686 }
687
688 static void hold(void)
689 {
690 if (rep || !tty)
691 return;
692
693 /*
694 * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
695 * these routines are also activated by ^S/^Q.
696 * (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
697 */
698 if (tty->stopped)
699 start_tty(tty);
700 else
701 stop_tty(tty);
702 }
703
704 static void num(void)
705 {
706 if (vc_kbd_mode(kbd,VC_APPLIC))
707 applkey('P', 1);
708 else
709 bare_num();
710 }
711
712 /*
713 * Bind this to Shift-NumLock if you work in application keypad mode
714 * but want to be able to change the NumLock flag.
715 * Bind this to NumLock if you prefer that the NumLock key always
716 * changes the NumLock flag.
717 */
718 static void bare_num(void)
719 {
720 if (!rep)
721 chg_vc_kbd_led(kbd,VC_NUMLOCK);
722 }
723
724 static void lastcons(void)
725 {
726 /* switch to the last used console, ChN */
727 set_console(last_console);
728 }
729
730 static void decr_console(void)
731 {
732 int i;
733
734 for (i = fg_console-1; i != fg_console; i--) {
735 if (i == -1)
736 i = MAX_NR_CONSOLES-1;
737 if (vc_cons_allocated(i))
738 break;
739 }
740 set_console(i);
741 }
742
743 static void incr_console(void)
744 {
745 int i;
746
747 for (i = fg_console+1; i != fg_console; i++) {
748 if (i == MAX_NR_CONSOLES)
749 i = 0;
750 if (vc_cons_allocated(i))
751 break;
752 }
753 set_console(i);
754 }
755
756 static void send_intr(void)
757 {
758 if (!tty)
759 return;
760 tty_insert_flip_char(tty, 0, TTY_BREAK);
761 con_schedule_flip(tty);
762 }
763
764 static void scroll_forw(void)
765 {
766 scrollfront(0);
767 }
768
769 static void scroll_back(void)
770 {
771 scrollback(0);
772 }
773
774 static void boot_it(void)
775 {
776 extern int obp_system_intr(void);
777
778 if (!obp_system_intr())
779 ctrl_alt_del();
780 /* sigh.. attempt to prevent multiple entry */
781 last_keycode=1;
782 rep = 0;
783 }
784
785 static void compose(void)
786 {
787 dead_key_next = 1;
788 compose_led_on = 1;
789 set_leds();
790 }
791
792 #ifdef CONFIG_PCI
793 extern int spawnpid, spawnsig;
794 #else
795 int spawnpid, spawnsig;
796 #endif
797
798
799 static void spawn_console(void)
800 {
801 if (spawnpid)
802 if(kill_proc(spawnpid, spawnsig, 1))
803 spawnpid = 0;
804 }
805
806 static void SAK(void)
807 {
808 do_SAK(tty);
809 #if 0
810 /*
811 * Need to fix SAK handling to fix up RAW/MEDIUM_RAW and
812 * vt_cons modes before we can enable RAW/MEDIUM_RAW SAK
813 * handling.
814 *
815 * We should do this some day --- the whole point of a secure
816 * attention key is that it should be guaranteed to always
817 * work.
818 */
819 reset_vc(fg_console);
820 do_unblank_screen(); /* not in interrupt routine? */
821 #endif
822 }
823
824 static void do_ignore(unsigned char value, char up_flag)
825 {
826 }
827
828 static void do_null()
829 {
830 sun_compute_shiftstate();
831 }
832
833 static void do_spec(unsigned char value, char up_flag)
834 {
835 if (up_flag)
836 return;
837 if (value >= SIZE(spec_fn_table))
838 return;
839 spec_fn_table[value]();
840 }
841
842 static void do_lowercase(unsigned char value, char up_flag)
843 {
844 printk("keyboard.c: do_lowercase was called - impossible\n");
845 }
846
847 static void do_self(unsigned char value, char up_flag)
848 {
849 if (up_flag)
850 return; /* no action, if this is a key release */
851
852 if (diacr) {
853 value = handle_diacr(value);
854 compose_led_on = 0;
855 set_leds();
856 }
857
858 if (dead_key_next) {
859 dead_key_next = 0;
860 diacr = value;
861 return;
862 }
863
864 put_queue(value);
865 }
866
867 #define A_GRAVE '`'
868 #define A_ACUTE '\''
869 #define A_CFLEX '^'
870 #define A_TILDE '~'
871 #define A_DIAER '"'
872 #define A_CEDIL ','
873 static unsigned char ret_diacr[NR_DEAD] =
874 {A_GRAVE, A_ACUTE, A_CFLEX, A_TILDE, A_DIAER, A_CEDIL };
875
876 /* If a dead key pressed twice, output a character corresponding to it, */
877 /* otherwise just remember the dead key. */
878
879 static void do_dead(unsigned char value, char up_flag)
880 {
881 if (up_flag)
882 return;
883
884 value = ret_diacr[value];
885 if (diacr == value) { /* pressed twice */
886 diacr = 0;
887 put_queue(value);
888 return;
889 }
890 diacr = value;
891 }
892
893
894 /* If space is pressed, return the character corresponding the pending */
895 /* dead key, otherwise try to combine the two. */
896
897 unsigned char handle_diacr(unsigned char ch)
898 {
899 int d = diacr;
900 int i;
901
902 diacr = 0;
903 if (ch == ' ')
904 return d;
905
906 for (i = 0; i < accent_table_size; i++) {
907 if (accent_table[i].diacr == d && accent_table[i].base == ch)
908 return accent_table[i].result;
909 }
910
911 put_queue(d);
912 return ch;
913 }
914
915 static void do_cons(unsigned char value, char up_flag)
916 {
917 if (up_flag)
918 return;
919 set_console(value);
920 }
921
922 static void do_fn(unsigned char value, char up_flag)
923 {
924 if (up_flag)
925 return;
926 if (value < SIZE(func_table)) {
927 if (func_table[value])
928 puts_queue(func_table[value]);
929 } else
930 printk("do_fn called with value=%d\n", value);
931 }
932
933 static void do_pad(unsigned char value, char up_flag)
934 {
935 static const char *pad_chars = "0123456789+-*/\015,.?";
936 static const char *app_map = "pqrstuvwxylSRQMnn?";
937
938 if (up_flag)
939 return; /* no action, if this is a key release */
940
941 /* kludge... shift forces cursor/number keys */
942 if (vc_kbd_mode(kbd,VC_APPLIC) && !k_down[KG_SHIFT]) {
943 applkey(app_map[value], 1);
944 return;
945 }
946
947 if (!vc_kbd_led(kbd,VC_NUMLOCK))
948 switch (value) {
949 case KVAL(K_PCOMMA):
950 case KVAL(K_PDOT):
951 do_fn(KVAL(K_REMOVE), 0);
952 return;
953 case KVAL(K_P0):
954 do_fn(KVAL(K_INSERT), 0);
955 return;
956 case KVAL(K_P1):
957 do_fn(KVAL(K_SELECT), 0);
958 return;
959 case KVAL(K_P2):
960 do_cur(KVAL(K_DOWN), 0);
961 return;
962 case KVAL(K_P3):
963 do_fn(KVAL(K_PGDN), 0);
964 return;
965 case KVAL(K_P4):
966 do_cur(KVAL(K_LEFT), 0);
967 return;
968 case KVAL(K_P6):
969 do_cur(KVAL(K_RIGHT), 0);
970 return;
971 case KVAL(K_P7):
972 do_fn(KVAL(K_FIND), 0);
973 return;
974 case KVAL(K_P8):
975 do_cur(KVAL(K_UP), 0);
976 return;
977 case KVAL(K_P9):
978 do_fn(KVAL(K_PGUP), 0);
979 return;
980 case KVAL(K_P5):
981 applkey('G', vc_kbd_mode(kbd, VC_APPLIC));
982 return;
983 }
984
985 put_queue(pad_chars[value]);
986 if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
987 put_queue(10);
988 }
989
990 static void do_cur(unsigned char value, char up_flag)
991 {
992 static const char *cur_chars = "BDCA";
993 if (up_flag)
994 return;
995
996 applkey(cur_chars[value], vc_kbd_mode(kbd,VC_CKMODE));
997 }
998
999 static void do_shift(unsigned char value, char up_flag)
1000 {
1001 int old_state = shift_state;
1002
1003 if (rep)
1004 return;
1005
1006 /* Mimic typewriter:
1007 a CapsShift key acts like Shift but undoes CapsLock */
1008 if (value == KVAL(K_CAPSSHIFT)) {
1009 value = KVAL(K_SHIFT);
1010 if (!up_flag)
1011 clr_vc_kbd_led(kbd, VC_CAPSLOCK);
1012 }
1013
1014 if (up_flag) {
1015 /* handle the case that two shift or control
1016 keys are depressed simultaneously */
1017 if (k_down[value])
1018 k_down[value]--;
1019 } else
1020 k_down[value]++;
1021
1022 if (k_down[value])
1023 shift_state |= (1 << value);
1024 else
1025 shift_state &= ~ (1 << value);
1026
1027 /* kludge, no joke... */
1028 if (up_flag && shift_state != old_state && npadch != -1) {
1029 put_queue(npadch & 0xff);
1030 npadch = -1;
1031 }
1032 }
1033
1034 /* called after returning from RAW mode or when changing consoles -
1035 recompute k_down[] and shift_state from key_down[] */
1036 /* maybe called when keymap is undefined, so that shiftkey release is seen */
1037 void sun_compute_shiftstate(void)
1038 {
1039 int i, j, k, sym, val;
1040
1041 shift_state = 0;
1042 for(i=0; i < SIZE(k_down); i++)
1043 k_down[i] = 0;
1044
1045 for(i=0; i < SIZE(key_down); i++)
1046 if(key_down[i]) { /* skip this word if not a single bit on */
1047 k = i*BITS_PER_LONG;
1048 for(j=0; j<BITS_PER_LONG; j++,k++)
1049 if(test_bit(k, key_down)) {
1050 sym = U(plain_map[k]);
1051 if(KTYP(sym) == KT_SHIFT) {
1052 val = KVAL(sym);
1053 if (val == KVAL(K_CAPSSHIFT))
1054 val = KVAL(K_SHIFT);
1055 k_down[val]++;
1056 shift_state |= (1<<val);
1057 }
1058 }
1059 }
1060 }
1061
1062 static void do_meta(unsigned char value, char up_flag)
1063 {
1064 if (up_flag)
1065 return;
1066
1067 if (vc_kbd_mode(kbd, VC_META)) {
1068 put_queue('\033');
1069 put_queue(value);
1070 } else
1071 put_queue(value | 0x80);
1072 }
1073
1074 static void do_ascii(unsigned char value, char up_flag)
1075 {
1076 int base;
1077
1078 if (up_flag)
1079 return;
1080
1081 if (value < 10) /* decimal input of code, while Alt depressed */
1082 base = 10;
1083 else { /* hexadecimal input of code, while AltGr depressed */
1084 value -= 10;
1085 base = 16;
1086 }
1087
1088 if (npadch == -1)
1089 npadch = value;
1090 else
1091 npadch = npadch * base + value;
1092 }
1093
1094 static void do_lock(unsigned char value, char up_flag)
1095 {
1096 if (up_flag || rep)
1097 return;
1098 chg_vc_kbd_lock(kbd, value);
1099 }
1100
1101 /*
1102 * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
1103 * or (ii) whatever pattern of lights people want to show using KDSETLED,
1104 * or (iii) specified bits of specified words in kernel memory.
1105 */
1106
1107 static unsigned char ledstate = 0xff; /* undefined */
1108 static unsigned char ledioctl;
1109
1110 unsigned char sun_getledstate(void) {
1111 return ledstate;
1112 }
1113
1114 void sun_setledstate(struct kbd_struct *kbd, unsigned int led) {
1115 if (!(led & ~7)) {
1116 ledioctl = led;
1117 kbd->ledmode = LED_SHOW_IOCTL;
1118 } else
1119 kbd->ledmode = LED_SHOW_FLAGS;
1120 set_leds();
1121 }
1122
1123 static struct ledptr {
1124 unsigned int *addr;
1125 unsigned int mask;
1126 unsigned char valid:1;
1127 } ledptrs[3];
1128
1129 void register_leds(int console, unsigned int led,
1130 unsigned int *addr, unsigned int mask) {
1131 struct kbd_struct *kbd = kbd_table + console;
1132 if (led < 3) {
1133 ledptrs[led].addr = addr;
1134 ledptrs[led].mask = mask;
1135 ledptrs[led].valid = 1;
1136 kbd->ledmode = LED_SHOW_MEM;
1137 } else
1138 kbd->ledmode = LED_SHOW_FLAGS;
1139 }
1140
1141 static inline unsigned char getleds(void){
1142 struct kbd_struct *kbd = kbd_table + fg_console;
1143 unsigned char leds;
1144
1145 if (kbd->ledmode == LED_SHOW_IOCTL)
1146 return ledioctl;
1147 leds = kbd->ledflagstate;
1148 if (kbd->ledmode == LED_SHOW_MEM) {
1149 if (ledptrs[0].valid) {
1150 if (*ledptrs[0].addr & ledptrs[0].mask)
1151 leds |= 1;
1152 else
1153 leds &= ~1;
1154 }
1155 if (ledptrs[1].valid) {
1156 if (*ledptrs[1].addr & ledptrs[1].mask)
1157 leds |= 2;
1158 else
1159 leds &= ~2;
1160 }
1161 if (ledptrs[2].valid) {
1162 if (*ledptrs[2].addr & ledptrs[2].mask)
1163 leds |= 4;
1164 else
1165 leds &= ~4;
1166 }
1167 }
1168 return leds;
1169 }
1170
1171 /*
1172 * This routine is the bottom half of the keyboard interrupt
1173 * routine, and runs with all interrupts enabled. It does
1174 * console changing, led setting and copy_to_cooked, which can
1175 * take a reasonably long time.
1176 *
1177 * Aside from timing (which isn't really that important for
1178 * keyboard interrupts as they happen often), using the software
1179 * interrupt routines for this thing allows us to easily mask
1180 * this when we don't want any of the above to happen. Not yet
1181 * used, but this allows for easy and efficient race-condition
1182 * prevention later on.
1183 */
1184 static unsigned char sunkbd_ledstate = 0xff; /* undefined */
1185 void sun_kbd_bh(unsigned long dummy)
1186 {
1187 unsigned long flags;
1188 unsigned char leds, kbd_leds;
1189
1190 spin_lock_irqsave(&sunkbd_lock, flags);
1191
1192 leds = getleds();
1193 kbd_leds = vcleds_to_sunkbd(leds);
1194 if (kbd_leds != sunkbd_ledstate) {
1195 ledstate = leds;
1196 sunkbd_ledstate = kbd_leds;
1197 send_cmd(SKBDCMD_SETLED);
1198 send_cmd(kbd_leds);
1199 }
1200
1201 spin_unlock_irqrestore(&sunkbd_lock, flags);
1202 }
1203
1204 /* Support for keyboard "beeps". */
1205
1206 /* Timer routine to turn off the beep after the interval expires. */
1207 static void sunkbd_kd_nosound(unsigned long __unused)
1208 {
1209 unsigned long flags;
1210
1211 spin_lock_irqsave(&sunkbd_lock, flags);
1212 send_cmd(SKBDCMD_BELLOFF);
1213 spin_unlock_irqrestore(&sunkbd_lock, flags);
1214 }
1215
1216 /*
1217 * Initiate a keyboard beep. If the frequency is zero, then we stop
1218 * the beep. Any other frequency will start a monotone beep. The beep
1219 * will be stopped by a timer after "ticks" jiffies. If ticks is 0,
1220 * then we do not start a timer.
1221 */
1222 static void sunkbd_kd_mksound(unsigned int hz, unsigned int ticks)
1223 {
1224 unsigned long flags;
1225 static struct timer_list sound_timer = { function: sunkbd_kd_nosound };
1226
1227 spin_lock_irqsave(&sunkbd_lock, flags);
1228
1229 del_timer(&sound_timer);
1230
1231 if (hz) {
1232 send_cmd(SKBDCMD_BELLON);
1233 if (ticks) {
1234 sound_timer.expires = jiffies + ticks;
1235 add_timer(&sound_timer);
1236 }
1237 } else
1238 send_cmd(SKBDCMD_BELLOFF);
1239
1240 spin_unlock_irqrestore(&sunkbd_lock, flags);
1241 }
1242
1243 extern void (*kd_mksound)(unsigned int hz, unsigned int ticks);
1244
1245 int __init sun_kbd_init(void)
1246 {
1247 int i, opt_node;
1248 struct kbd_struct kbd0;
1249 extern struct tty_driver console_driver;
1250
1251 kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
1252 kbd0.ledmode = LED_SHOW_FLAGS;
1253 kbd0.lockstate = KBD_DEFLOCK;
1254 kbd0.slockstate = 0;
1255 kbd0.modeflags = KBD_DEFMODE;
1256 kbd0.kbdmode = VC_XLATE;
1257
1258 for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
1259 kbd_table[i] = kbd0;
1260
1261 ttytab = console_driver.table;
1262
1263 kd_mksound = sunkbd_kd_mksound;
1264
1265 /* XXX Check keyboard-click? property in 'options' PROM node XXX */
1266 if(sparc_cpu_model != sun4) {
1267 opt_node = prom_getchild(prom_root_node);
1268 opt_node = prom_searchsiblings(opt_node, "options");
1269 i = prom_getintdefault(opt_node, "keyboard-click?", -1);
1270 if(i != -1)
1271 sunkbd_clickp = 1;
1272 else
1273 sunkbd_clickp = 0;
1274 } else {
1275 sunkbd_clickp = 0;
1276 }
1277
1278 keyboard_tasklet.func = sun_kbd_bh;
1279
1280 tasklet_enable(&keyboard_tasklet);
1281 tasklet_schedule(&keyboard_tasklet);
1282
1283 return 0;
1284 }
1285
1286 /* /dev/kbd support */
1287
1288 #define KBD_QSIZE 32
1289 static Firm_event kbd_queue [KBD_QSIZE];
1290 static int kbd_head, kbd_tail;
1291 static spinlock_t kbd_queue_lock = SPIN_LOCK_UNLOCKED;
1292 char kbd_opened;
1293 static int kbd_active = 0;
1294 static DECLARE_WAIT_QUEUE_HEAD(kbd_wait);
1295 static struct fasync_struct *kb_fasync;
1296
1297 void
1298 push_kbd (int scan)
1299 {
1300 unsigned long flags;
1301 int next;
1302
1303 if (scan == KBD_IDLE)
1304 return;
1305
1306 spin_lock_irqsave(&kbd_queue_lock, flags);
1307 next = (kbd_head + 1) % KBD_QSIZE;
1308 if (next != kbd_tail){
1309 kbd_queue [kbd_head].id = scan & KBD_KEYMASK;
1310 kbd_queue [kbd_head].value=scan & KBD_UP ? VKEY_UP : VKEY_DOWN;
1311 kbd_queue [kbd_head].time = xtime;
1312 kbd_head = next;
1313 }
1314 spin_unlock_irqrestore(&kbd_queue_lock, flags);
1315
1316 kill_fasync (&kb_fasync, SIGIO, POLL_IN);
1317 wake_up_interruptible (&kbd_wait);
1318 }
1319
1320 static ssize_t
1321 kbd_read (struct file *f, char *buffer, size_t count, loff_t *ppos)
1322 {
1323 DECLARE_WAITQUEUE(wait, current);
1324 unsigned long flags;
1325 char *end, *p;
1326
1327 /* Return EWOULDBLOCK, because this is what the X server expects */
1328 if (kbd_head == kbd_tail){
1329 if (f->f_flags & O_NONBLOCK)
1330 return -EWOULDBLOCK;
1331 add_wait_queue (&kbd_wait, &wait);
1332 repeat:
1333 set_current_state(TASK_INTERRUPTIBLE);
1334 if (kbd_head == kbd_tail && !signal_pending(current)) {
1335 schedule();
1336 goto repeat;
1337 }
1338 current->state = TASK_RUNNING;
1339 remove_wait_queue (&kbd_wait, &wait);
1340 }
1341 /* There is data in the keyboard, fill the user buffer */
1342 end = buffer+count;
1343 p = buffer;
1344 spin_lock_irqsave(&kbd_queue_lock, flags);
1345 for (; p < end && kbd_head != kbd_tail;){
1346 Firm_event this_event = kbd_queue[kbd_tail];
1347
1348 kbd_tail = (kbd_tail + 1) % KBD_QSIZE;
1349
1350 spin_unlock_irqrestore(&kbd_queue_lock, flags);
1351
1352 #ifdef CONFIG_SPARC32_COMPAT
1353 if (current->thread.flags & SPARC_FLAG_32BIT) {
1354 if (copy_to_user((Firm_event *)p, &this_event,
1355 sizeof(Firm_event)-sizeof(struct timeval)))
1356 return -EFAULT;
1357 p += sizeof(Firm_event)-sizeof(struct timeval);
1358 if (__put_user(this_event.time.tv_sec, (u32 *)p))
1359 return -EFAULT;
1360 p += sizeof(u32);
1361 if (__put_user(this_event.time.tv_usec, (u32 *)p))
1362 return -EFAULT;
1363 p += sizeof(u32);
1364 } else
1365 #endif
1366 {
1367 if (copy_to_user((Firm_event *)p, &this_event,
1368 sizeof(Firm_event)))
1369 return -EFAULT;
1370 p += sizeof (Firm_event);
1371 }
1372 #ifdef KBD_DEBUG
1373 printk ("[%s]", this_event.value == VKEY_UP ? "UP" : "DOWN");
1374 #endif
1375
1376 spin_lock_irqsave(&kbd_queue_lock, flags);
1377 }
1378
1379 spin_unlock_irqrestore(&kbd_queue_lock, flags);
1380
1381 return p-buffer;
1382 }
1383
1384 /* Needed by X */
1385 static int kbd_fasync (int fd, struct file *filp, int on)
1386 {
1387 int retval;
1388
1389 retval = fasync_helper (fd, filp, on, &kb_fasync);
1390 if (retval < 0)
1391 return retval;
1392 return 0;
1393 }
1394
1395 static unsigned int kbd_poll (struct file *f, poll_table *wait)
1396 {
1397 poll_wait(f, &kbd_wait, wait);
1398 if (kbd_head != kbd_tail)
1399 return POLLIN | POLLRDNORM;
1400 return 0;
1401 }
1402
1403 static int
1404 kbd_ioctl (struct inode *i, struct file *f, unsigned int cmd, unsigned long arg)
1405 {
1406 unsigned char c;
1407 unsigned char leds = 0;
1408 int value;
1409
1410 switch (cmd){
1411 case KIOCTYPE: /* return keyboard type */
1412 if (put_user(sunkbd_type, (int *) arg))
1413 return -EFAULT;
1414 break;
1415 case KIOCGTRANS:
1416 if (put_user(TR_UNTRANS_EVENT, (int *) arg))
1417 return -EFAULT;
1418 break;
1419 case KIOCTRANS:
1420 if (get_user(value, (int *) arg))
1421 return -EFAULT;
1422 if (value != TR_UNTRANS_EVENT)
1423 return -EINVAL;
1424 break;
1425 case KIOCLAYOUT:
1426 if (put_user(sunkbd_layout, (int *) arg))
1427 return -EFAULT;
1428 break;
1429 case KIOCSDIRECT:
1430 #ifndef CODING_NEW_DRIVER
1431 if (get_user(value, (int *) arg))
1432 return -EFAULT;
1433 if(value)
1434 kbd_redirected = fg_console + 1;
1435 else
1436 kbd_redirected = 0;
1437 kbd_table [fg_console].kbdmode = kbd_redirected ? VC_RAW : VC_XLATE;
1438 #endif
1439 break;
1440 case KIOCCMD:
1441 if (get_user(value, (int *) arg))
1442 return -EFAULT;
1443 c = (unsigned char) value;
1444 switch (c) {
1445 case SKBDCMD_CLICK:
1446 case SKBDCMD_NOCLICK:
1447 spin_lock_irq(&sunkbd_lock);
1448 send_cmd(c);
1449 spin_unlock_irq(&sunkbd_lock);
1450 return 0;
1451 case SKBDCMD_BELLON:
1452 kd_mksound(1,0);
1453 return 0;
1454 case SKBDCMD_BELLOFF:
1455 kd_mksound(0,0);
1456 return 0;
1457 default:
1458 return -EINVAL;
1459 }
1460 case KIOCSLED:
1461 if (get_user(c, (unsigned char *) arg))
1462 return -EFAULT;
1463
1464 if (c & LED_SCRLCK) leds |= (1 << VC_SCROLLOCK);
1465 if (c & LED_NLOCK) leds |= (1 << VC_NUMLOCK);
1466 if (c & LED_CLOCK) leds |= (1 << VC_CAPSLOCK);
1467 compose_led_on = !!(c & LED_CMPOSE);
1468 sun_setledstate(kbd_table + fg_console, leds);
1469 break;
1470 case KIOCGLED:
1471 if (put_user(vcleds_to_sunkbd(getleds()), (unsigned char *) arg))
1472 return -EFAULT;
1473 break;
1474 case KIOCGRATE:
1475 {
1476 struct kbd_rate rate;
1477
1478 rate.delay = kbd_delay_ticks;
1479 if (kbd_rate_ticks)
1480 rate.rate = HZ / kbd_rate_ticks;
1481 else
1482 rate.rate = 0;
1483
1484 if (copy_to_user((struct kbd_rate *)arg, &rate,
1485 sizeof(struct kbd_rate)))
1486 return -EFAULT;
1487
1488 return 0;
1489 }
1490 case KIOCSRATE:
1491 {
1492 struct kbd_rate rate;
1493
1494 if (verify_area(VERIFY_READ, (void *)arg,
1495 sizeof(struct kbd_rate)))
1496 return -EFAULT;
1497 copy_from_user(&rate, (struct kbd_rate *)arg,
1498 sizeof(struct kbd_rate));
1499
1500 if (rate.rate > 50)
1501 return -EINVAL;
1502 if (rate.rate == 0)
1503 kbd_rate_ticks = 0;
1504 else
1505 kbd_rate_ticks = HZ / rate.rate;
1506 kbd_delay_ticks = rate.delay;
1507
1508 return 0;
1509 }
1510 case FIONREAD: /* return number of bytes in kbd queue */
1511 {
1512 int count;
1513
1514 count = kbd_head - kbd_tail;
1515 if (put_user((count < 0) ? KBD_QSIZE - count : count, (int *) arg))
1516 return -EFAULT;
1517 return 0;
1518 }
1519 default:
1520 printk ("Unknown Keyboard ioctl: %8.8x\n", cmd);
1521 return -EINVAL;
1522 }
1523 return 0;
1524 }
1525
1526 static int
1527 kbd_open (struct inode *i, struct file *f)
1528 {
1529 spin_lock_irq(&kbd_queue_lock);
1530 kbd_active++;
1531
1532 if (kbd_opened)
1533 goto out;
1534
1535 kbd_opened = fg_console + 1;
1536
1537 kbd_head = kbd_tail = 0;
1538
1539 out:
1540 spin_unlock_irq(&kbd_queue_lock);
1541
1542 return 0;
1543 }
1544
1545 static int
1546 kbd_close (struct inode *i, struct file *f)
1547 {
1548 spin_lock_irq(&kbd_queue_lock);
1549 if (!--kbd_active) {
1550 if (kbd_redirected)
1551 kbd_table [kbd_redirected-1].kbdmode = VC_XLATE;
1552 kbd_redirected = 0;
1553 kbd_opened = 0;
1554 kbd_fasync (-1, f, 0);
1555 }
1556 spin_unlock_irq(&kbd_queue_lock);
1557
1558 return 0;
1559 }
1560
1561 static struct file_operations kbd_fops =
1562 {
1563 read: kbd_read,
1564 poll: kbd_poll,
1565 ioctl: kbd_ioctl,
1566 open: kbd_open,
1567 release: kbd_close,
1568 fasync: kbd_fasync,
1569 };
1570
1571 void __init keyboard_zsinit(void (*put_char)(unsigned char))
1572 {
1573 int timeout = 0;
1574
1575 kbd_put_char = put_char;
1576 if (!kbd_put_char)
1577 panic("keyboard_zsinit: no put_char parameter");
1578
1579 /* Test out the leds */
1580 sunkbd_type = 255;
1581 sunkbd_layout = 0;
1582
1583 send_cmd(SKBDCMD_RESET);
1584 send_cmd(SKBDCMD_RESET);
1585 while((sunkbd_type==255) && timeout++ < 25000) {
1586 udelay(100);
1587 barrier();
1588 }
1589
1590 if(timeout>=25000) {
1591 printk("keyboard: not present\n");
1592 return;
1593 }
1594
1595 if(sunkbd_type != SUNKBD_TYPE4) {
1596 printk("Sun TYPE %d keyboard detected ", sunkbd_type);
1597 } else {
1598 timeout=0;
1599 while((sunkbd_layout==0) && timeout++ < 10000) {
1600 udelay(100);
1601 barrier();
1602 }
1603 printk("Sun TYPE %d keyboard detected ",
1604 ((sunkbd_layout & SUNKBD_LOUT_TYP5_MASK) ? 5 : 4));
1605 }
1606 if(sunkbd_type == SUNKBD_TYPE2)
1607 sunkbd_clickp = 0;
1608
1609 spin_lock_irq(&sunkbd_lock);
1610
1611 if(sunkbd_clickp) {
1612 send_cmd(SKBDCMD_CLICK);
1613 printk("with keyclick\n");
1614 } else {
1615 send_cmd(SKBDCMD_NOCLICK);
1616 printk("without keyclick\n");
1617 }
1618
1619 /* Dork with led lights, then turn them all off */
1620 send_cmd(SKBDCMD_SETLED); send_cmd(0xf); /* All on */
1621 send_cmd(SKBDCMD_SETLED); send_cmd(0x0); /* All off */
1622
1623 spin_unlock_irq(&sunkbd_lock);
1624
1625 /* Register the /dev/kbd interface */
1626 devfs_register (NULL, "kbd", DEVFS_FL_DEFAULT,
1627 KBD_MAJOR, 0,
1628 S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH,
1629 &kbd_fops, NULL);
1630 if (devfs_register_chrdev (KBD_MAJOR, "kbd", &kbd_fops)){
1631 printk ("Could not register /dev/kbd device\n");
1632 return;
1633 }
1634 return;
1635 }
1636