30
31#include "opt_kbd.h"
32#include "opt_atkbd.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bus.h>
38#include <sys/eventhandler.h>
39#include <sys/proc.h>
40#include <sys/limits.h>
41#include <sys/malloc.h>
42
43#include <machine/bus.h>
44#include <machine/resource.h>
45
46#ifdef __i386__
47#include <machine/md_var.h>
48#include <machine/psl.h>
49#include <machine/vm86.h>
50#include <machine/pc/bios.h>
51
52#include <vm/vm.h>
53#include <vm/pmap.h>
54#include <vm/vm_param.h>
55
56#include <isa/isareg.h>
57#endif /* __i386__ */
58
59#include <sys/kbio.h>
60#include <dev/kbd/kbdreg.h>
61#include <dev/atkbdc/atkbdreg.h>
62#include <dev/atkbdc/atkbdcreg.h>
63
64static timeout_t atkbd_timeout;
65static void atkbd_shutdown_final(void *v);
66
67int
68atkbd_probe_unit(int unit, int ctlr, int irq, int flags)
69{
70 keyboard_switch_t *sw;
71 int args[2];
72 int error;
73
74 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
75 if (sw == NULL)
76 return ENXIO;
77
78 args[0] = ctlr;
79 args[1] = irq;
80 error = (*sw->probe)(unit, args, flags);
81 if (error)
82 return error;
83 return 0;
84}
85
86int
87atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags)
88{
89 keyboard_switch_t *sw;
90 int args[2];
91 int error;
92
93 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
94 if (sw == NULL)
95 return ENXIO;
96
97 /* reset, initialize and enable the device */
98 args[0] = ctlr;
99 args[1] = irq;
100 *kbd = NULL;
101 error = (*sw->probe)(unit, args, flags);
102 if (error)
103 return error;
104 error = (*sw->init)(unit, kbd, args, flags);
105 if (error)
106 return error;
107 (*sw->enable)(*kbd);
108
109#ifdef KBD_INSTALL_CDEV
110 /* attach a virtual keyboard cdev */
111 error = kbd_attach(*kbd);
112 if (error)
113 return error;
114#endif
115
116 /*
117 * This is a kludge to compensate for lost keyboard interrupts.
118 * A similar code used to be in syscons. See below. XXX
119 */
120 atkbd_timeout(*kbd);
121
122 if (bootverbose)
123 (*sw->diag)(*kbd, bootverbose);
124
125 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd,
126 SHUTDOWN_PRI_DEFAULT);
127
128 return 0;
129}
130
131static void
132atkbd_timeout(void *arg)
133{
134 keyboard_t *kbd;
135 int s;
136
137 /*
138 * The original text of the following comments are extracted
139 * from syscons.c (1.287)
140 *
141 * With release 2.1 of the Xaccel server, the keyboard is left
142 * hanging pretty often. Apparently an interrupt from the
143 * keyboard is lost, and I don't know why (yet).
144 * This ugly hack calls the low-level interrupt routine if input
145 * is ready for the keyboard and conveniently hides the problem. XXX
146 *
147 * Try removing anything stuck in the keyboard controller; whether
148 * it's a keyboard scan code or mouse data. The low-level
149 * interrupt routine doesn't read the mouse data directly,
150 * but the keyboard controller driver will, as a side effect.
151 */
152 /*
153 * And here is bde's original comment about this:
154 *
155 * This is necessary to handle edge triggered interrupts - if we
156 * returned when our IRQ is high due to unserviced input, then there
157 * would be no more keyboard IRQs until the keyboard is reset by
158 * external powers.
159 *
160 * The keyboard apparently unwedges the irq in most cases.
161 */
162 s = spltty();
163 kbd = (keyboard_t *)arg;
164 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) {
165 /*
166 * We have seen the lock flag is not set. Let's reset
167 * the flag early, otherwise the LED update routine fails
168 * which may want the lock during the interrupt routine.
169 */
170 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE);
171 if ((*kbdsw[kbd->kb_index]->check_char)(kbd))
172 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
173 }
174 splx(s);
175 timeout(atkbd_timeout, arg, hz/10);
176}
177
178/* LOW-LEVEL */
179
180#define ATKBD_DEFAULT 0
181
182typedef struct atkbd_state {
183 KBDC kbdc; /* keyboard controller */
184 /* XXX: don't move this field; pcvt
185 * expects `kbdc' to be the first
186 * field in this structure. */
187 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
188 int ks_flags; /* flags */
189#define COMPOSE (1 << 0)
190 int ks_polling;
191 int ks_state; /* shift/lock key state */
192 int ks_accents; /* accent key index (> 0) */
193 u_int ks_composed_char; /* composed char code (> 0) */
194 u_char ks_prefix; /* AT scan code prefix */
195} atkbd_state_t;
196
197/* keyboard driver declaration */
198static int atkbd_configure(int flags);
199static kbd_probe_t atkbd_probe;
200static kbd_init_t atkbd_init;
201static kbd_term_t atkbd_term;
202static kbd_intr_t atkbd_intr;
203static kbd_test_if_t atkbd_test_if;
204static kbd_enable_t atkbd_enable;
205static kbd_disable_t atkbd_disable;
206static kbd_read_t atkbd_read;
207static kbd_check_t atkbd_check;
208static kbd_read_char_t atkbd_read_char;
209static kbd_check_char_t atkbd_check_char;
210static kbd_ioctl_t atkbd_ioctl;
211static kbd_lock_t atkbd_lock;
212static kbd_clear_state_t atkbd_clear_state;
213static kbd_get_state_t atkbd_get_state;
214static kbd_set_state_t atkbd_set_state;
215static kbd_poll_mode_t atkbd_poll;
216
217static keyboard_switch_t atkbdsw = {
218 atkbd_probe,
219 atkbd_init,
220 atkbd_term,
221 atkbd_intr,
222 atkbd_test_if,
223 atkbd_enable,
224 atkbd_disable,
225 atkbd_read,
226 atkbd_check,
227 atkbd_read_char,
228 atkbd_check_char,
229 atkbd_ioctl,
230 atkbd_lock,
231 atkbd_clear_state,
232 atkbd_get_state,
233 atkbd_set_state,
234 genkbd_get_fkeystr,
235 atkbd_poll,
236 genkbd_diag,
237};
238
239KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
240
241/* local functions */
242static int get_typematic(keyboard_t *kbd);
243static int setup_kbd_port(KBDC kbdc, int port, int intr);
244static int get_kbd_echo(KBDC kbdc);
245static int probe_keyboard(KBDC kbdc, int flags);
246static int init_keyboard(KBDC kbdc, int *type, int flags);
247static int write_kbd(KBDC kbdc, int command, int data);
248static int get_kbd_id(KBDC kbdc);
249static int typematic(int delay, int rate);
250static int typematic_delay(int delay);
251static int typematic_rate(int rate);
252
253/* local variables */
254
255/* the initial key map, accent map and fkey strings */
256#ifdef ATKBD_DFLT_KEYMAP
257#define KBD_DFLT_KEYMAP
258#include "atkbdmap.h"
259#endif
260#include <dev/kbd/kbdtables.h>
261
262/* structures for the default keyboard */
263static keyboard_t default_kbd;
264static atkbd_state_t default_kbd_state;
265static keymap_t default_keymap;
266static accentmap_t default_accentmap;
267static fkeytab_t default_fkeytab[NUM_FKEYS];
268
269/*
270 * The back door to the keyboard driver!
271 * This function is called by the console driver, via the kbdio module,
272 * to tickle keyboard drivers when the low-level console is being initialized.
273 * Almost nothing in the kernel has been initialied yet. Try to probe
274 * keyboards if possible.
275 * NOTE: because of the way the low-level console is initialized, this routine
276 * may be called more than once!!
277 */
278static int
279atkbd_configure(int flags)
280{
281 keyboard_t *kbd;
282 int arg[2];
283 int i;
284
| 30
31#include "opt_kbd.h"
32#include "opt_atkbd.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bus.h>
38#include <sys/eventhandler.h>
39#include <sys/proc.h>
40#include <sys/limits.h>
41#include <sys/malloc.h>
42
43#include <machine/bus.h>
44#include <machine/resource.h>
45
46#ifdef __i386__
47#include <machine/md_var.h>
48#include <machine/psl.h>
49#include <machine/vm86.h>
50#include <machine/pc/bios.h>
51
52#include <vm/vm.h>
53#include <vm/pmap.h>
54#include <vm/vm_param.h>
55
56#include <isa/isareg.h>
57#endif /* __i386__ */
58
59#include <sys/kbio.h>
60#include <dev/kbd/kbdreg.h>
61#include <dev/atkbdc/atkbdreg.h>
62#include <dev/atkbdc/atkbdcreg.h>
63
64static timeout_t atkbd_timeout;
65static void atkbd_shutdown_final(void *v);
66
67int
68atkbd_probe_unit(int unit, int ctlr, int irq, int flags)
69{
70 keyboard_switch_t *sw;
71 int args[2];
72 int error;
73
74 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
75 if (sw == NULL)
76 return ENXIO;
77
78 args[0] = ctlr;
79 args[1] = irq;
80 error = (*sw->probe)(unit, args, flags);
81 if (error)
82 return error;
83 return 0;
84}
85
86int
87atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags)
88{
89 keyboard_switch_t *sw;
90 int args[2];
91 int error;
92
93 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
94 if (sw == NULL)
95 return ENXIO;
96
97 /* reset, initialize and enable the device */
98 args[0] = ctlr;
99 args[1] = irq;
100 *kbd = NULL;
101 error = (*sw->probe)(unit, args, flags);
102 if (error)
103 return error;
104 error = (*sw->init)(unit, kbd, args, flags);
105 if (error)
106 return error;
107 (*sw->enable)(*kbd);
108
109#ifdef KBD_INSTALL_CDEV
110 /* attach a virtual keyboard cdev */
111 error = kbd_attach(*kbd);
112 if (error)
113 return error;
114#endif
115
116 /*
117 * This is a kludge to compensate for lost keyboard interrupts.
118 * A similar code used to be in syscons. See below. XXX
119 */
120 atkbd_timeout(*kbd);
121
122 if (bootverbose)
123 (*sw->diag)(*kbd, bootverbose);
124
125 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd,
126 SHUTDOWN_PRI_DEFAULT);
127
128 return 0;
129}
130
131static void
132atkbd_timeout(void *arg)
133{
134 keyboard_t *kbd;
135 int s;
136
137 /*
138 * The original text of the following comments are extracted
139 * from syscons.c (1.287)
140 *
141 * With release 2.1 of the Xaccel server, the keyboard is left
142 * hanging pretty often. Apparently an interrupt from the
143 * keyboard is lost, and I don't know why (yet).
144 * This ugly hack calls the low-level interrupt routine if input
145 * is ready for the keyboard and conveniently hides the problem. XXX
146 *
147 * Try removing anything stuck in the keyboard controller; whether
148 * it's a keyboard scan code or mouse data. The low-level
149 * interrupt routine doesn't read the mouse data directly,
150 * but the keyboard controller driver will, as a side effect.
151 */
152 /*
153 * And here is bde's original comment about this:
154 *
155 * This is necessary to handle edge triggered interrupts - if we
156 * returned when our IRQ is high due to unserviced input, then there
157 * would be no more keyboard IRQs until the keyboard is reset by
158 * external powers.
159 *
160 * The keyboard apparently unwedges the irq in most cases.
161 */
162 s = spltty();
163 kbd = (keyboard_t *)arg;
164 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) {
165 /*
166 * We have seen the lock flag is not set. Let's reset
167 * the flag early, otherwise the LED update routine fails
168 * which may want the lock during the interrupt routine.
169 */
170 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE);
171 if ((*kbdsw[kbd->kb_index]->check_char)(kbd))
172 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
173 }
174 splx(s);
175 timeout(atkbd_timeout, arg, hz/10);
176}
177
178/* LOW-LEVEL */
179
180#define ATKBD_DEFAULT 0
181
182typedef struct atkbd_state {
183 KBDC kbdc; /* keyboard controller */
184 /* XXX: don't move this field; pcvt
185 * expects `kbdc' to be the first
186 * field in this structure. */
187 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
188 int ks_flags; /* flags */
189#define COMPOSE (1 << 0)
190 int ks_polling;
191 int ks_state; /* shift/lock key state */
192 int ks_accents; /* accent key index (> 0) */
193 u_int ks_composed_char; /* composed char code (> 0) */
194 u_char ks_prefix; /* AT scan code prefix */
195} atkbd_state_t;
196
197/* keyboard driver declaration */
198static int atkbd_configure(int flags);
199static kbd_probe_t atkbd_probe;
200static kbd_init_t atkbd_init;
201static kbd_term_t atkbd_term;
202static kbd_intr_t atkbd_intr;
203static kbd_test_if_t atkbd_test_if;
204static kbd_enable_t atkbd_enable;
205static kbd_disable_t atkbd_disable;
206static kbd_read_t atkbd_read;
207static kbd_check_t atkbd_check;
208static kbd_read_char_t atkbd_read_char;
209static kbd_check_char_t atkbd_check_char;
210static kbd_ioctl_t atkbd_ioctl;
211static kbd_lock_t atkbd_lock;
212static kbd_clear_state_t atkbd_clear_state;
213static kbd_get_state_t atkbd_get_state;
214static kbd_set_state_t atkbd_set_state;
215static kbd_poll_mode_t atkbd_poll;
216
217static keyboard_switch_t atkbdsw = {
218 atkbd_probe,
219 atkbd_init,
220 atkbd_term,
221 atkbd_intr,
222 atkbd_test_if,
223 atkbd_enable,
224 atkbd_disable,
225 atkbd_read,
226 atkbd_check,
227 atkbd_read_char,
228 atkbd_check_char,
229 atkbd_ioctl,
230 atkbd_lock,
231 atkbd_clear_state,
232 atkbd_get_state,
233 atkbd_set_state,
234 genkbd_get_fkeystr,
235 atkbd_poll,
236 genkbd_diag,
237};
238
239KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
240
241/* local functions */
242static int get_typematic(keyboard_t *kbd);
243static int setup_kbd_port(KBDC kbdc, int port, int intr);
244static int get_kbd_echo(KBDC kbdc);
245static int probe_keyboard(KBDC kbdc, int flags);
246static int init_keyboard(KBDC kbdc, int *type, int flags);
247static int write_kbd(KBDC kbdc, int command, int data);
248static int get_kbd_id(KBDC kbdc);
249static int typematic(int delay, int rate);
250static int typematic_delay(int delay);
251static int typematic_rate(int rate);
252
253/* local variables */
254
255/* the initial key map, accent map and fkey strings */
256#ifdef ATKBD_DFLT_KEYMAP
257#define KBD_DFLT_KEYMAP
258#include "atkbdmap.h"
259#endif
260#include <dev/kbd/kbdtables.h>
261
262/* structures for the default keyboard */
263static keyboard_t default_kbd;
264static atkbd_state_t default_kbd_state;
265static keymap_t default_keymap;
266static accentmap_t default_accentmap;
267static fkeytab_t default_fkeytab[NUM_FKEYS];
268
269/*
270 * The back door to the keyboard driver!
271 * This function is called by the console driver, via the kbdio module,
272 * to tickle keyboard drivers when the low-level console is being initialized.
273 * Almost nothing in the kernel has been initialied yet. Try to probe
274 * keyboards if possible.
275 * NOTE: because of the way the low-level console is initialized, this routine
276 * may be called more than once!!
277 */
278static int
279atkbd_configure(int flags)
280{
281 keyboard_t *kbd;
282 int arg[2];
283 int i;
284
|
290 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT);
291 if (i >= 0) {
292 kbd = kbd_get_keyboard(i);
293 kbd_unregister(kbd);
294 kbd->kb_flags &= ~KB_REGISTERED;
295 }
296 return 0;
297 }
298
299 /* XXX: a kludge to obtain the device configuration flags */
300 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0)
301 flags |= i;
302
303 /* probe the default keyboard */
304 arg[0] = -1;
305 arg[1] = -1;
306 kbd = NULL;
307 if (atkbd_probe(ATKBD_DEFAULT, arg, flags))
308 return 0;
309 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags))
310 return 0;
311
312 /* return the number of found keyboards */
313 return 1;
314}
315
316/* low-level functions */
317
318/* detect a keyboard */
319static int
320atkbd_probe(int unit, void *arg, int flags)
321{
322 KBDC kbdc;
323 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
324
325 /* XXX */
326 if (unit == ATKBD_DEFAULT) {
327 if (KBD_IS_PROBED(&default_kbd))
328 return 0;
329 }
330
331 kbdc = atkbdc_open(data[0]);
332 if (kbdc == NULL)
333 return ENXIO;
334 if (probe_keyboard(kbdc, flags)) {
335 if (flags & KB_CONF_FAIL_IF_NO_KBD)
336 return ENXIO;
337 }
338 return 0;
339}
340
341/* reset and initialize the device */
342static int
343atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
344{
345 keyboard_t *kbd;
346 atkbd_state_t *state;
347 keymap_t *keymap;
348 accentmap_t *accmap;
349 fkeytab_t *fkeymap;
350 int fkeymap_size;
351 int delay[2];
352 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
353 int error, needfree;
354
355 /* XXX */
356 if (unit == ATKBD_DEFAULT) {
357 *kbdp = kbd = &default_kbd;
358 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd))
359 return 0;
360 state = &default_kbd_state;
361 keymap = &default_keymap;
362 accmap = &default_accentmap;
363 fkeymap = default_fkeytab;
364 fkeymap_size =
365 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]);
366 needfree = 0;
367 } else if (*kbdp == NULL) {
368 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO);
369 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO);
370 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */
371 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT);
372 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT);
373 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT);
374 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]);
375 needfree = 1;
376 if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
377 || (accmap == NULL) || (fkeymap == NULL)) {
378 error = ENOMEM;
379 goto bad;
380 }
381 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) {
382 return 0;
383 } else {
384 kbd = *kbdp;
385 state = (atkbd_state_t *)kbd->kb_data;
386 bzero(state, sizeof(*state));
387 keymap = kbd->kb_keymap;
388 accmap = kbd->kb_accentmap;
389 fkeymap = kbd->kb_fkeytab;
390 fkeymap_size = kbd->kb_fkeytab_size;
391 needfree = 0;
392 }
393
394 if (!KBD_IS_PROBED(kbd)) {
395 state->kbdc = atkbdc_open(data[0]);
396 if (state->kbdc == NULL) {
397 error = ENXIO;
398 goto bad;
399 }
400 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags,
401 0, 0);
402 bcopy(&key_map, keymap, sizeof(key_map));
403 bcopy(&accent_map, accmap, sizeof(accent_map));
404 bcopy(fkey_tab, fkeymap,
405 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab)));
406 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size);
407 kbd->kb_data = (void *)state;
408
409 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */
410 if (flags & KB_CONF_FAIL_IF_NO_KBD) {
411 error = ENXIO;
412 goto bad;
413 }
414 } else {
415 KBD_FOUND_DEVICE(kbd);
416 }
417 atkbd_clear_state(kbd);
418 state->ks_mode = K_XLATE;
419 /*
420 * FIXME: set the initial value for lock keys in ks_state
421 * according to the BIOS data?
422 */
423 KBD_PROBE_DONE(kbd);
424 }
425 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) {
426 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY;
427 if (KBD_HAS_DEVICE(kbd)
428 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config)
429 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) {
430 kbd_unregister(kbd);
431 error = ENXIO;
432 goto bad;
433 }
434 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
435 get_typematic(kbd);
436 delay[0] = kbd->kb_delay1;
437 delay[1] = kbd->kb_delay2;
438 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
439 KBD_INIT_DONE(kbd);
440 }
441 if (!KBD_IS_CONFIGURED(kbd)) {
442 if (kbd_register(kbd) < 0) {
443 error = ENXIO;
444 goto bad;
445 }
446 KBD_CONFIG_DONE(kbd);
447 }
448
449 return 0;
450bad:
451 if (needfree) {
452 if (state != NULL)
453 free(state, M_DEVBUF);
454 if (keymap != NULL)
455 free(keymap, M_DEVBUF);
456 if (accmap != NULL)
457 free(accmap, M_DEVBUF);
458 if (fkeymap != NULL)
459 free(fkeymap, M_DEVBUF);
460 if (kbd != NULL) {
461 free(kbd, M_DEVBUF);
462 *kbdp = NULL; /* insure ref doesn't leak to caller */
463 }
464 }
465 return error;
466}
467
468/* finish using this keyboard */
469static int
470atkbd_term(keyboard_t *kbd)
471{
472 kbd_unregister(kbd);
473 return 0;
474}
475
476/* keyboard interrupt routine */
477static int
478atkbd_intr(keyboard_t *kbd, void *arg)
479{
480 atkbd_state_t *state;
481 int delay[2];
482 int c;
483
484 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
485 /* let the callback function to process the input */
486 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT,
487 kbd->kb_callback.kc_arg);
488 } else {
489 /* read and discard the input; no one is waiting for input */
490 do {
491 c = atkbd_read_char(kbd, FALSE);
492 } while (c != NOKEY);
493
494 if (!KBD_HAS_DEVICE(kbd)) {
495 /*
496 * The keyboard was not detected before;
497 * it must have been reconnected!
498 */
499 state = (atkbd_state_t *)kbd->kb_data;
500 init_keyboard(state->kbdc, &kbd->kb_type,
501 kbd->kb_config);
502 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
503 get_typematic(kbd);
504 delay[0] = kbd->kb_delay1;
505 delay[1] = kbd->kb_delay2;
506 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
507 KBD_FOUND_DEVICE(kbd);
508 }
509 }
510 return 0;
511}
512
513/* test the interface to the device */
514static int
515atkbd_test_if(keyboard_t *kbd)
516{
517 int error;
518 int s;
519
520 error = 0;
521 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10);
522 s = spltty();
523 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc))
524 error = EIO;
525 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0)
526 error = EIO;
527 splx(s);
528
529 return error;
530}
531
532/*
533 * Enable the access to the device; until this function is called,
534 * the client cannot read from the keyboard.
535 */
536static int
537atkbd_enable(keyboard_t *kbd)
538{
539 int s;
540
541 s = spltty();
542 KBD_ACTIVATE(kbd);
543 splx(s);
544 return 0;
545}
546
547/* disallow the access to the device */
548static int
549atkbd_disable(keyboard_t *kbd)
550{
551 int s;
552
553 s = spltty();
554 KBD_DEACTIVATE(kbd);
555 splx(s);
556 return 0;
557}
558
559/* read one byte from the keyboard if it's allowed */
560static int
561atkbd_read(keyboard_t *kbd, int wait)
562{
563 int c;
564
565 if (wait)
566 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc);
567 else
568 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc);
569 if (c != -1)
570 ++kbd->kb_count;
571 return (KBD_IS_ACTIVE(kbd) ? c : -1);
572}
573
574/* check if data is waiting */
575static int
576atkbd_check(keyboard_t *kbd)
577{
578 if (!KBD_IS_ACTIVE(kbd))
579 return FALSE;
580 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc);
581}
582
583/* read char from the keyboard */
584static u_int
585atkbd_read_char(keyboard_t *kbd, int wait)
586{
587 atkbd_state_t *state;
588 u_int action;
589 int scancode;
590 int keycode;
591
592 state = (atkbd_state_t *)kbd->kb_data;
593next_code:
594 /* do we have a composed char to return? */
595 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) {
596 action = state->ks_composed_char;
597 state->ks_composed_char = 0;
598 if (action > UCHAR_MAX)
599 return ERRKEY;
600 return action;
601 }
602
603 /* see if there is something in the keyboard port */
604 if (wait) {
605 do {
606 scancode = read_kbd_data(state->kbdc);
607 } while (scancode == -1);
608 } else {
609 scancode = read_kbd_data_no_wait(state->kbdc);
610 if (scancode == -1)
611 return NOKEY;
612 }
613 ++kbd->kb_count;
614
615#if KBDIO_DEBUG >= 10
616 printf("atkbd_read_char(): scancode:0x%x\n", scancode);
617#endif
618
619 /* return the byte as is for the K_RAW mode */
620 if (state->ks_mode == K_RAW)
621 return scancode;
622
623 /* translate the scan code into a keycode */
624 keycode = scancode & 0x7F;
625 switch (state->ks_prefix) {
626 case 0x00: /* normal scancode */
627 switch(scancode) {
628 case 0xB8: /* left alt (compose key) released */
629 if (state->ks_flags & COMPOSE) {
630 state->ks_flags &= ~COMPOSE;
631 if (state->ks_composed_char > UCHAR_MAX)
632 state->ks_composed_char = 0;
633 }
634 break;
635 case 0x38: /* left alt (compose key) pressed */
636 if (!(state->ks_flags & COMPOSE)) {
637 state->ks_flags |= COMPOSE;
638 state->ks_composed_char = 0;
639 }
640 break;
641 case 0xE0:
642 case 0xE1:
643 state->ks_prefix = scancode;
644 goto next_code;
645 }
646 break;
647 case 0xE0: /* 0xE0 prefix */
648 state->ks_prefix = 0;
649 switch (keycode) {
650 case 0x1C: /* right enter key */
651 keycode = 0x59;
652 break;
653 case 0x1D: /* right ctrl key */
654 keycode = 0x5A;
655 break;
656 case 0x35: /* keypad divide key */
657 keycode = 0x5B;
658 break;
659 case 0x37: /* print scrn key */
660 keycode = 0x5C;
661 break;
662 case 0x38: /* right alt key (alt gr) */
663 keycode = 0x5D;
664 break;
665 case 0x46: /* ctrl-pause/break on AT 101 (see below) */
666 keycode = 0x68;
667 break;
668 case 0x47: /* grey home key */
669 keycode = 0x5E;
670 break;
671 case 0x48: /* grey up arrow key */
672 keycode = 0x5F;
673 break;
674 case 0x49: /* grey page up key */
675 keycode = 0x60;
676 break;
677 case 0x4B: /* grey left arrow key */
678 keycode = 0x61;
679 break;
680 case 0x4D: /* grey right arrow key */
681 keycode = 0x62;
682 break;
683 case 0x4F: /* grey end key */
684 keycode = 0x63;
685 break;
686 case 0x50: /* grey down arrow key */
687 keycode = 0x64;
688 break;
689 case 0x51: /* grey page down key */
690 keycode = 0x65;
691 break;
692 case 0x52: /* grey insert key */
693 keycode = 0x66;
694 break;
695 case 0x53: /* grey delete key */
696 keycode = 0x67;
697 break;
698 /* the following 3 are only used on the MS "Natural" keyboard */
699 case 0x5b: /* left Window key */
700 keycode = 0x69;
701 break;
702 case 0x5c: /* right Window key */
703 keycode = 0x6a;
704 break;
705 case 0x5d: /* menu key */
706 keycode = 0x6b;
707 break;
708 case 0x5e: /* power key */
709 keycode = 0x6d;
710 break;
711 case 0x5f: /* sleep key */
712 keycode = 0x6e;
713 break;
714 case 0x63: /* wake key */
715 keycode = 0x6f;
716 break;
717 default: /* ignore everything else */
718 goto next_code;
719 }
720 break;
721 case 0xE1: /* 0xE1 prefix */
722 /*
723 * The pause/break key on the 101 keyboard produces:
724 * E1-1D-45 E1-9D-C5
725 * Ctrl-pause/break produces:
726 * E0-46 E0-C6 (See above.)
727 */
728 state->ks_prefix = 0;
729 if (keycode == 0x1D)
730 state->ks_prefix = 0x1D;
731 goto next_code;
732 /* NOT REACHED */
733 case 0x1D: /* pause / break */
734 state->ks_prefix = 0;
735 if (keycode != 0x45)
736 goto next_code;
737 keycode = 0x68;
738 break;
739 }
740
741 if (kbd->kb_type == KB_84) {
742 switch (keycode) {
743 case 0x37: /* *(numpad)/print screen */
744 if (state->ks_flags & SHIFTS)
745 keycode = 0x5c; /* print screen */
746 break;
747 case 0x45: /* num lock/pause */
748 if (state->ks_flags & CTLS)
749 keycode = 0x68; /* pause */
750 break;
751 case 0x46: /* scroll lock/break */
752 if (state->ks_flags & CTLS)
753 keycode = 0x6c; /* break */
754 break;
755 }
756 } else if (kbd->kb_type == KB_101) {
757 switch (keycode) {
758 case 0x5c: /* print screen */
759 if (state->ks_flags & ALTS)
760 keycode = 0x54; /* sysrq */
761 break;
762 case 0x68: /* pause/break */
763 if (state->ks_flags & CTLS)
764 keycode = 0x6c; /* break */
765 break;
766 }
767 }
768
769 /* return the key code in the K_CODE mode */
770 if (state->ks_mode == K_CODE)
771 return (keycode | (scancode & 0x80));
772
773 /* compose a character code */
774 if (state->ks_flags & COMPOSE) {
775 switch (keycode | (scancode & 0x80)) {
776 /* key pressed, process it */
777 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */
778 state->ks_composed_char *= 10;
779 state->ks_composed_char += keycode - 0x40;
780 if (state->ks_composed_char > UCHAR_MAX)
781 return ERRKEY;
782 goto next_code;
783 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */
784 state->ks_composed_char *= 10;
785 state->ks_composed_char += keycode - 0x47;
786 if (state->ks_composed_char > UCHAR_MAX)
787 return ERRKEY;
788 goto next_code;
789 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */
790 state->ks_composed_char *= 10;
791 state->ks_composed_char += keycode - 0x4E;
792 if (state->ks_composed_char > UCHAR_MAX)
793 return ERRKEY;
794 goto next_code;
795 case 0x52: /* keypad 0 */
796 state->ks_composed_char *= 10;
797 if (state->ks_composed_char > UCHAR_MAX)
798 return ERRKEY;
799 goto next_code;
800
801 /* key released, no interest here */
802 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */
803 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */
804 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */
805 case 0xD2: /* keypad 0 */
806 goto next_code;
807
808 case 0x38: /* left alt key */
809 break;
810
811 default:
812 if (state->ks_composed_char > 0) {
813 state->ks_flags &= ~COMPOSE;
814 state->ks_composed_char = 0;
815 return ERRKEY;
816 }
817 break;
818 }
819 }
820
821 /* keycode to key action */
822 action = genkbd_keyaction(kbd, keycode, scancode & 0x80,
823 &state->ks_state, &state->ks_accents);
824 if (action == NOKEY)
825 goto next_code;
826 else
827 return action;
828}
829
830/* check if char is waiting */
831static int
832atkbd_check_char(keyboard_t *kbd)
833{
834 atkbd_state_t *state;
835
836 if (!KBD_IS_ACTIVE(kbd))
837 return FALSE;
838 state = (atkbd_state_t *)kbd->kb_data;
839 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0))
840 return TRUE;
841 return kbdc_data_ready(state->kbdc);
842}
843
844/* some useful control functions */
845static int
846atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
847{
848 /* translate LED_XXX bits into the device specific bits */
849 static u_char ledmap[8] = {
850 0, 4, 2, 6, 1, 5, 3, 7,
851 };
852 atkbd_state_t *state = kbd->kb_data;
853 int error;
854 int s;
855 int i;
856
857 s = spltty();
858 switch (cmd) {
859
860 case KDGKBMODE: /* get keyboard mode */
861 *(int *)arg = state->ks_mode;
862 break;
863 case KDSKBMODE: /* set keyboard mode */
864 switch (*(int *)arg) {
865 case K_XLATE:
866 if (state->ks_mode != K_XLATE) {
867 /* make lock key state and LED state match */
868 state->ks_state &= ~LOCK_MASK;
869 state->ks_state |= KBD_LED_VAL(kbd);
870 }
871 /* FALLTHROUGH */
872 case K_RAW:
873 case K_CODE:
874 if (state->ks_mode != *(int *)arg) {
875 atkbd_clear_state(kbd);
876 state->ks_mode = *(int *)arg;
877 }
878 break;
879 default:
880 splx(s);
881 return EINVAL;
882 }
883 break;
884
885 case KDGETLED: /* get keyboard LED */
886 *(int *)arg = KBD_LED_VAL(kbd);
887 break;
888 case KDSETLED: /* set keyboard LED */
889 /* NOTE: lock key state in ks_state won't be changed */
890 if (*(int *)arg & ~LOCK_MASK) {
891 splx(s);
892 return EINVAL;
893 }
894 i = *(int *)arg;
895 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */
896 if (state->ks_mode == K_XLATE &&
897 kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
898 if (i & ALKED)
899 i |= CLKED;
900 else
901 i &= ~CLKED;
902 }
903 if (KBD_HAS_DEVICE(kbd)) {
904 error = write_kbd(state->kbdc, KBDC_SET_LEDS,
905 ledmap[i & LED_MASK]);
906 if (error) {
907 splx(s);
908 return error;
909 }
910 }
911 KBD_LED_VAL(kbd) = *(int *)arg;
912 break;
913
914 case KDGKBSTATE: /* get lock key state */
915 *(int *)arg = state->ks_state & LOCK_MASK;
916 break;
917 case KDSKBSTATE: /* set lock key state */
918 if (*(int *)arg & ~LOCK_MASK) {
919 splx(s);
920 return EINVAL;
921 }
922 state->ks_state &= ~LOCK_MASK;
923 state->ks_state |= *(int *)arg;
924 splx(s);
925 /* set LEDs and quit */
926 return atkbd_ioctl(kbd, KDSETLED, arg);
927
928 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
929 splx(s);
930 if (!KBD_HAS_DEVICE(kbd))
931 return 0;
932 i = typematic(((int *)arg)[0], ((int *)arg)[1]);
933 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i);
934 if (error == 0) {
935 kbd->kb_delay1 = typematic_delay(i);
936 kbd->kb_delay2 = typematic_rate(i);
937 }
938 return error;
939
940 case KDSETRAD: /* set keyboard repeat rate (old interface) */
941 splx(s);
942 if (!KBD_HAS_DEVICE(kbd))
943 return 0;
944 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg);
945 if (error == 0) {
946 kbd->kb_delay1 = typematic_delay(*(int *)arg);
947 kbd->kb_delay2 = typematic_rate(*(int *)arg);
948 }
949 return error;
950
951 case PIO_KEYMAP: /* set keyboard translation table */
952 case PIO_KEYMAPENT: /* set keyboard translation table entry */
953 case PIO_DEADKEYMAP: /* set accent key translation table */
954 state->ks_accents = 0;
955 /* FALLTHROUGH */
956 default:
957 splx(s);
958 return genkbd_commonioctl(kbd, cmd, arg);
959 }
960
961 splx(s);
962 return 0;
963}
964
965/* lock the access to the keyboard */
966static int
967atkbd_lock(keyboard_t *kbd, int lock)
968{
969 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock);
970}
971
972/* clear the internal state of the keyboard */
973static void
974atkbd_clear_state(keyboard_t *kbd)
975{
976 atkbd_state_t *state;
977
978 state = (atkbd_state_t *)kbd->kb_data;
979 state->ks_flags = 0;
980 state->ks_polling = 0;
981 state->ks_state &= LOCK_MASK; /* preserve locking key state */
982 state->ks_accents = 0;
983 state->ks_composed_char = 0;
984#if 0
985 state->ks_prefix = 0; /* XXX */
986#endif
987}
988
989/* save the internal state */
990static int
991atkbd_get_state(keyboard_t *kbd, void *buf, size_t len)
992{
993 if (len == 0)
994 return sizeof(atkbd_state_t);
995 if (len < sizeof(atkbd_state_t))
996 return -1;
997 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t));
998 return 0;
999}
1000
1001/* set the internal state */
1002static int
1003atkbd_set_state(keyboard_t *kbd, void *buf, size_t len)
1004{
1005 if (len < sizeof(atkbd_state_t))
1006 return ENOMEM;
1007 if (((atkbd_state_t *)kbd->kb_data)->kbdc
1008 != ((atkbd_state_t *)buf)->kbdc)
1009 return ENOMEM;
1010 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t));
1011 return 0;
1012}
1013
1014static int
1015atkbd_poll(keyboard_t *kbd, int on)
1016{
1017 atkbd_state_t *state;
1018 int s;
1019
1020 state = (atkbd_state_t *)kbd->kb_data;
1021 s = spltty();
1022 if (on)
1023 ++state->ks_polling;
1024 else
1025 --state->ks_polling;
1026 splx(s);
1027 return 0;
1028}
1029
1030static void
1031atkbd_shutdown_final(void *v)
1032{
1033#ifdef __sparc64__
1034 keyboard_t *kbd = v;
1035 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc;
1036
1037 /*
1038 * Turn off the translation in preparation for handing the keyboard
1039 * over to the OFW as the OBP driver doesn't use translation and
1040 * also doesn't disable it itself resulting in a broken keymap at
1041 * the boot prompt. Also disable the aux port and the interrupts as
1042 * the OBP driver doesn't use them, i.e. polls the keyboard. Not
1043 * disabling the interrupts doesn't cause real problems but the
1044 * responsiveness is a bit better when they are turned off.
1045 */
1046 send_kbd_command(kbdc, KBDC_DISABLE_KBD);
1047 set_controller_command_byte(kbdc,
1048 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION,
1049 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT);
1050 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1051#endif
1052}
1053
1054/* local functions */
1055
1056static int
1057get_typematic(keyboard_t *kbd)
1058{
1059#ifdef __i386__
1060 /*
1061 * Only some systems allow us to retrieve the keyboard repeat
1062 * rate previously set via the BIOS...
1063 */
1064 struct vm86frame vmf;
1065 u_int32_t p;
1066
1067 bzero(&vmf, sizeof(vmf));
1068 vmf.vmf_ax = 0xc000;
1069 vm86_intcall(0x15, &vmf);
1070 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
1071 return ENODEV;
1072 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
1073 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
1074 return ENODEV;
1075 vmf.vmf_ax = 0x0900;
1076 vm86_intcall(0x16, &vmf);
1077 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
1078 return ENODEV;
1079 vmf.vmf_ax = 0x0306;
1080 vm86_intcall(0x16, &vmf);
1081 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
1082 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
1083 return 0;
1084#else
1085 return ENODEV;
1086#endif /* __i386__ */
1087}
1088
1089static int
1090setup_kbd_port(KBDC kbdc, int port, int intr)
1091{
1092 if (!set_controller_command_byte(kbdc,
1093 KBD_KBD_CONTROL_BITS,
1094 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT)
1095 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT)))
1096 return 1;
1097 return 0;
1098}
1099
1100static int
1101get_kbd_echo(KBDC kbdc)
1102{
1103 /* enable the keyboard port, but disable the keyboard intr. */
1104 if (setup_kbd_port(kbdc, TRUE, FALSE))
1105 /* CONTROLLER ERROR: there is very little we can do... */
1106 return ENXIO;
1107
1108 /* see if something is present */
1109 write_kbd_command(kbdc, KBDC_ECHO);
1110 if (read_kbd_data(kbdc) != KBD_ECHO) {
1111 empty_both_buffers(kbdc, 10);
1112 test_controller(kbdc);
1113 test_kbd_port(kbdc);
1114 return ENXIO;
1115 }
1116
1117 /* enable the keyboard port and intr. */
1118 if (setup_kbd_port(kbdc, TRUE, TRUE)) {
1119 /*
1120 * CONTROLLER ERROR
1121 * This is serious; the keyboard intr is left disabled!
1122 */
1123 return ENXIO;
1124 }
1125
1126 return 0;
1127}
1128
1129static int
1130probe_keyboard(KBDC kbdc, int flags)
1131{
1132 /*
1133 * Don't try to print anything in this function. The low-level
1134 * console may not have been initialized yet...
1135 */
1136 int err;
1137 int c;
1138 int m;
1139
1140 if (!kbdc_lock(kbdc, TRUE)) {
1141 /* driver error? */
1142 return ENXIO;
1143 }
1144
1145 /* temporarily block data transmission from the keyboard */
1146 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1147
1148 /* flush any noise in the buffer */
1149 empty_both_buffers(kbdc, 100);
1150
1151 /* save the current keyboard controller command byte */
1152 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS;
1153 c = get_controller_command_byte(kbdc);
1154 if (c == -1) {
1155 /* CONTROLLER ERROR */
1156 kbdc_set_device_mask(kbdc, m);
1157 kbdc_lock(kbdc, FALSE);
1158 return ENXIO;
1159 }
1160
1161 /*
1162 * The keyboard may have been screwed up by the boot block.
1163 * We may just be able to recover from error by testing the controller
1164 * and the keyboard port. The controller command byte needs to be
1165 * saved before this recovery operation, as some controllers seem
1166 * to set the command byte to particular values.
1167 */
1168 test_controller(kbdc);
1169 if (!(flags & KB_CONF_NO_PROBE_TEST))
1170 test_kbd_port(kbdc);
1171
1172 err = get_kbd_echo(kbdc);
1173
1174 /*
1175 * Even if the keyboard doesn't seem to be present (err != 0),
1176 * we shall enable the keyboard port and interrupt so that
1177 * the driver will be operable when the keyboard is attached
1178 * to the system later. It is NOT recommended to hot-plug
1179 * the AT keyboard, but many people do so...
1180 */
1181 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1182 setup_kbd_port(kbdc, TRUE, TRUE);
1183#if 0
1184 if (err == 0) {
1185 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1186 } else {
1187 /* try to restore the command byte as before */
1188 set_controller_command_byte(kbdc, 0xff, c);
1189 kbdc_set_device_mask(kbdc, m);
1190 }
1191#endif
1192
1193 kbdc_lock(kbdc, FALSE);
1194 return err;
1195}
1196
1197static int
1198init_keyboard(KBDC kbdc, int *type, int flags)
1199{
1200 int codeset;
1201 int id;
1202 int c;
1203
1204 if (!kbdc_lock(kbdc, TRUE)) {
1205 /* driver error? */
1206 return EIO;
1207 }
1208
1209 /* temporarily block data transmission from the keyboard */
1210 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1211
1212 /* save the current controller command byte */
1213 empty_both_buffers(kbdc, 200);
1214 c = get_controller_command_byte(kbdc);
1215 if (c == -1) {
1216 /* CONTROLLER ERROR */
1217 kbdc_lock(kbdc, FALSE);
1218 printf("atkbd: unable to get the current command byte value.\n");
1219 return EIO;
1220 }
1221 if (bootverbose)
1222 printf("atkbd: the current kbd controller command byte %04x\n",
1223 c);
1224#if 0
1225 /* override the keyboard lock switch */
1226 c |= KBD_OVERRIDE_KBD_LOCK;
1227#endif
1228
1229 /* enable the keyboard port, but disable the keyboard intr. */
1230 if (setup_kbd_port(kbdc, TRUE, FALSE)) {
1231 /* CONTROLLER ERROR: there is very little we can do... */
1232 printf("atkbd: unable to set the command byte.\n");
1233 kbdc_lock(kbdc, FALSE);
1234 return EIO;
1235 }
1236
1237 /*
1238 * Check if we have an XT keyboard before we attempt to reset it.
1239 * The procedure assumes that the keyboard and the controller have
1240 * been set up properly by BIOS and have not been messed up
1241 * during the boot process.
1242 */
1243 codeset = -1;
1244 if (flags & KB_CONF_ALT_SCANCODESET)
1245 /* the user says there is a XT keyboard */
1246 codeset = 1;
1247#ifdef KBD_DETECT_XT_KEYBOARD
1248 else if ((c & KBD_TRANSLATION) == 0) {
1249 /* SET_SCANCODE_SET is not always supported; ignore error */
1250 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0)
1251 == KBD_ACK)
1252 codeset = read_kbd_data(kbdc);
1253 }
1254 if (bootverbose)
1255 printf("atkbd: scancode set %d\n", codeset);
1256#endif /* KBD_DETECT_XT_KEYBOARD */
1257
1258 *type = KB_OTHER;
1259 id = get_kbd_id(kbdc);
1260 switch(id) {
1261 case 0x41ab: /* 101/102/... Enhanced */
1262 case 0x83ab: /* ditto */
1263 case 0x54ab: /* SpaceSaver */
1264 case 0x84ab: /* ditto */
1265#if 0
1266 case 0x90ab: /* 'G' */
1267 case 0x91ab: /* 'P' */
1268 case 0x92ab: /* 'A' */
1269#endif
1270 *type = KB_101;
1271 break;
1272 case -1: /* AT 84 keyboard doesn't return ID */
1273 *type = KB_84;
1274 break;
1275 default:
1276 break;
1277 }
1278 if (bootverbose)
1279 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);
1280
1281 /* reset keyboard hardware */
1282 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) {
1283 /*
1284 * KEYBOARD ERROR
1285 * Keyboard reset may fail either because the keyboard
1286 * doen't exist, or because the keyboard doesn't pass
1287 * the self-test, or the keyboard controller on the
1288 * motherboard and the keyboard somehow fail to shake hands.
1289 * It is just possible, particularly in the last case,
1290 * that the keyboard controller may be left in a hung state.
1291 * test_controller() and test_kbd_port() appear to bring
1292 * the keyboard controller back (I don't know why and how,
1293 * though.)
1294 */
1295 empty_both_buffers(kbdc, 10);
1296 test_controller(kbdc);
1297 test_kbd_port(kbdc);
1298 /*
1299 * We could disable the keyboard port and interrupt... but,
1300 * the keyboard may still exist (see above).
1301 */
1302 set_controller_command_byte(kbdc, 0xff, c);
1303 kbdc_lock(kbdc, FALSE);
1304 if (bootverbose)
1305 printf("atkbd: failed to reset the keyboard.\n");
1306 return EIO;
1307 }
1308
1309 /*
1310 * Allow us to set the XT_KEYBD flag so that keyboards
1311 * such as those on the IBM ThinkPad laptop computers can be used
1312 * with the standard console driver.
1313 */
1314 if (codeset == 1) {
1315 if (send_kbd_command_and_data(kbdc,
1316 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) {
1317 /* XT kbd doesn't need scan code translation */
1318 c &= ~KBD_TRANSLATION;
1319 } else {
1320 /*
1321 * KEYBOARD ERROR
1322 * The XT kbd isn't usable unless the proper scan
1323 * code set is selected.
1324 */
1325 set_controller_command_byte(kbdc, 0xff, c);
1326 kbdc_lock(kbdc, FALSE);
1327 printf("atkbd: unable to set the XT keyboard mode.\n");
1328 return EIO;
1329 }
1330 }
1331
1332#if defined(__alpha__) || defined(__sparc64__)
1333 if (send_kbd_command_and_data(
1334 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) {
1335 printf("atkbd: can't set translation.\n");
1336 }
1337 c |= KBD_TRANSLATION;
1338#endif
1339
1340 /* enable the keyboard port and intr. */
1341 if (!set_controller_command_byte(kbdc,
1342 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK,
1343 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK))
1344 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) {
1345 /*
1346 * CONTROLLER ERROR
1347 * This is serious; we are left with the disabled
1348 * keyboard intr.
1349 */
1350 set_controller_command_byte(kbdc, 0xff, c);
1351 kbdc_lock(kbdc, FALSE);
1352 printf("atkbd: unable to enable the keyboard port and intr.\n");
1353 return EIO;
1354 }
1355
1356 kbdc_lock(kbdc, FALSE);
1357 return 0;
1358}
1359
1360static int
1361write_kbd(KBDC kbdc, int command, int data)
1362{
1363 int s;
1364
1365 /* prevent the timeout routine from polling the keyboard */
1366 if (!kbdc_lock(kbdc, TRUE))
1367 return EBUSY;
1368
1369 /* disable the keyboard and mouse interrupt */
1370 s = spltty();
1371#if 0
1372 c = get_controller_command_byte(kbdc);
1373 if ((c == -1)
1374 || !set_controller_command_byte(kbdc,
1375 kbdc_get_device_mask(kbdc),
1376 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
1377 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
1378 /* CONTROLLER ERROR */
1379 kbdc_lock(kbdc, FALSE);
1380 splx(s);
1381 return EIO;
1382 }
1383 /*
1384 * Now that the keyboard controller is told not to generate
1385 * the keyboard and mouse interrupts, call `splx()' to allow
1386 * the other tty interrupts. The clock interrupt may also occur,
1387 * but the timeout routine (`scrn_timer()') will be blocked
1388 * by the lock flag set via `kbdc_lock()'
1389 */
1390 splx(s);
1391#endif
1392
1393 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK)
1394 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1395
1396#if 0
1397 /* restore the interrupts */
1398 if (!set_controller_command_byte(kbdc,
1399 kbdc_get_device_mask(kbdc),
1400 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
1401 /* CONTROLLER ERROR */
1402 }
1403#else
1404 splx(s);
1405#endif
1406 kbdc_lock(kbdc, FALSE);
1407
1408 return 0;
1409}
1410
1411static int
1412get_kbd_id(KBDC kbdc)
1413{
1414 int id1, id2;
1415
1416 empty_both_buffers(kbdc, 10);
1417 id1 = id2 = -1;
1418 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK)
1419 return -1;
1420
1421 DELAY(10000); /* 10 msec delay */
1422 id1 = read_kbd_data(kbdc);
1423 if (id1 != -1)
1424 id2 = read_kbd_data(kbdc);
1425
1426 if ((id1 == -1) || (id2 == -1)) {
1427 empty_both_buffers(kbdc, 10);
1428 test_controller(kbdc);
1429 test_kbd_port(kbdc);
1430 return -1;
1431 }
1432 return ((id2 << 8) | id1);
1433}
1434
1435static int delays[] = { 250, 500, 750, 1000 };
1436static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63,
1437 68, 76, 84, 92, 100, 110, 118, 126,
1438 136, 152, 168, 184, 200, 220, 236, 252,
1439 272, 304, 336, 368, 400, 440, 472, 504 };
1440
1441static int
1442typematic_delay(int i)
1443{
1444 return delays[(i >> 5) & 3];
1445}
1446
1447static int
1448typematic_rate(int i)
1449{
1450 return rates[i & 0x1f];
1451}
1452
1453static int
1454typematic(int delay, int rate)
1455{
1456 int value;
1457 int i;
1458
1459 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) {
1460 if (delay >= delays[i])
1461 break;
1462 }
1463 value = i << 5;
1464 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) {
1465 if (rate >= rates[i])
1466 break;
1467 }
1468 value |= i;
1469 return value;
1470}
| 291 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT);
292 if (i >= 0) {
293 kbd = kbd_get_keyboard(i);
294 kbd_unregister(kbd);
295 kbd->kb_flags &= ~KB_REGISTERED;
296 }
297 return 0;
298 }
299
300 /* XXX: a kludge to obtain the device configuration flags */
301 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0)
302 flags |= i;
303
304 /* probe the default keyboard */
305 arg[0] = -1;
306 arg[1] = -1;
307 kbd = NULL;
308 if (atkbd_probe(ATKBD_DEFAULT, arg, flags))
309 return 0;
310 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags))
311 return 0;
312
313 /* return the number of found keyboards */
314 return 1;
315}
316
317/* low-level functions */
318
319/* detect a keyboard */
320static int
321atkbd_probe(int unit, void *arg, int flags)
322{
323 KBDC kbdc;
324 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
325
326 /* XXX */
327 if (unit == ATKBD_DEFAULT) {
328 if (KBD_IS_PROBED(&default_kbd))
329 return 0;
330 }
331
332 kbdc = atkbdc_open(data[0]);
333 if (kbdc == NULL)
334 return ENXIO;
335 if (probe_keyboard(kbdc, flags)) {
336 if (flags & KB_CONF_FAIL_IF_NO_KBD)
337 return ENXIO;
338 }
339 return 0;
340}
341
342/* reset and initialize the device */
343static int
344atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
345{
346 keyboard_t *kbd;
347 atkbd_state_t *state;
348 keymap_t *keymap;
349 accentmap_t *accmap;
350 fkeytab_t *fkeymap;
351 int fkeymap_size;
352 int delay[2];
353 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
354 int error, needfree;
355
356 /* XXX */
357 if (unit == ATKBD_DEFAULT) {
358 *kbdp = kbd = &default_kbd;
359 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd))
360 return 0;
361 state = &default_kbd_state;
362 keymap = &default_keymap;
363 accmap = &default_accentmap;
364 fkeymap = default_fkeytab;
365 fkeymap_size =
366 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]);
367 needfree = 0;
368 } else if (*kbdp == NULL) {
369 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO);
370 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO);
371 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */
372 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT);
373 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT);
374 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT);
375 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]);
376 needfree = 1;
377 if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
378 || (accmap == NULL) || (fkeymap == NULL)) {
379 error = ENOMEM;
380 goto bad;
381 }
382 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) {
383 return 0;
384 } else {
385 kbd = *kbdp;
386 state = (atkbd_state_t *)kbd->kb_data;
387 bzero(state, sizeof(*state));
388 keymap = kbd->kb_keymap;
389 accmap = kbd->kb_accentmap;
390 fkeymap = kbd->kb_fkeytab;
391 fkeymap_size = kbd->kb_fkeytab_size;
392 needfree = 0;
393 }
394
395 if (!KBD_IS_PROBED(kbd)) {
396 state->kbdc = atkbdc_open(data[0]);
397 if (state->kbdc == NULL) {
398 error = ENXIO;
399 goto bad;
400 }
401 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags,
402 0, 0);
403 bcopy(&key_map, keymap, sizeof(key_map));
404 bcopy(&accent_map, accmap, sizeof(accent_map));
405 bcopy(fkey_tab, fkeymap,
406 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab)));
407 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size);
408 kbd->kb_data = (void *)state;
409
410 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */
411 if (flags & KB_CONF_FAIL_IF_NO_KBD) {
412 error = ENXIO;
413 goto bad;
414 }
415 } else {
416 KBD_FOUND_DEVICE(kbd);
417 }
418 atkbd_clear_state(kbd);
419 state->ks_mode = K_XLATE;
420 /*
421 * FIXME: set the initial value for lock keys in ks_state
422 * according to the BIOS data?
423 */
424 KBD_PROBE_DONE(kbd);
425 }
426 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) {
427 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY;
428 if (KBD_HAS_DEVICE(kbd)
429 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config)
430 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) {
431 kbd_unregister(kbd);
432 error = ENXIO;
433 goto bad;
434 }
435 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
436 get_typematic(kbd);
437 delay[0] = kbd->kb_delay1;
438 delay[1] = kbd->kb_delay2;
439 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
440 KBD_INIT_DONE(kbd);
441 }
442 if (!KBD_IS_CONFIGURED(kbd)) {
443 if (kbd_register(kbd) < 0) {
444 error = ENXIO;
445 goto bad;
446 }
447 KBD_CONFIG_DONE(kbd);
448 }
449
450 return 0;
451bad:
452 if (needfree) {
453 if (state != NULL)
454 free(state, M_DEVBUF);
455 if (keymap != NULL)
456 free(keymap, M_DEVBUF);
457 if (accmap != NULL)
458 free(accmap, M_DEVBUF);
459 if (fkeymap != NULL)
460 free(fkeymap, M_DEVBUF);
461 if (kbd != NULL) {
462 free(kbd, M_DEVBUF);
463 *kbdp = NULL; /* insure ref doesn't leak to caller */
464 }
465 }
466 return error;
467}
468
469/* finish using this keyboard */
470static int
471atkbd_term(keyboard_t *kbd)
472{
473 kbd_unregister(kbd);
474 return 0;
475}
476
477/* keyboard interrupt routine */
478static int
479atkbd_intr(keyboard_t *kbd, void *arg)
480{
481 atkbd_state_t *state;
482 int delay[2];
483 int c;
484
485 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
486 /* let the callback function to process the input */
487 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT,
488 kbd->kb_callback.kc_arg);
489 } else {
490 /* read and discard the input; no one is waiting for input */
491 do {
492 c = atkbd_read_char(kbd, FALSE);
493 } while (c != NOKEY);
494
495 if (!KBD_HAS_DEVICE(kbd)) {
496 /*
497 * The keyboard was not detected before;
498 * it must have been reconnected!
499 */
500 state = (atkbd_state_t *)kbd->kb_data;
501 init_keyboard(state->kbdc, &kbd->kb_type,
502 kbd->kb_config);
503 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
504 get_typematic(kbd);
505 delay[0] = kbd->kb_delay1;
506 delay[1] = kbd->kb_delay2;
507 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
508 KBD_FOUND_DEVICE(kbd);
509 }
510 }
511 return 0;
512}
513
514/* test the interface to the device */
515static int
516atkbd_test_if(keyboard_t *kbd)
517{
518 int error;
519 int s;
520
521 error = 0;
522 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10);
523 s = spltty();
524 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc))
525 error = EIO;
526 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0)
527 error = EIO;
528 splx(s);
529
530 return error;
531}
532
533/*
534 * Enable the access to the device; until this function is called,
535 * the client cannot read from the keyboard.
536 */
537static int
538atkbd_enable(keyboard_t *kbd)
539{
540 int s;
541
542 s = spltty();
543 KBD_ACTIVATE(kbd);
544 splx(s);
545 return 0;
546}
547
548/* disallow the access to the device */
549static int
550atkbd_disable(keyboard_t *kbd)
551{
552 int s;
553
554 s = spltty();
555 KBD_DEACTIVATE(kbd);
556 splx(s);
557 return 0;
558}
559
560/* read one byte from the keyboard if it's allowed */
561static int
562atkbd_read(keyboard_t *kbd, int wait)
563{
564 int c;
565
566 if (wait)
567 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc);
568 else
569 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc);
570 if (c != -1)
571 ++kbd->kb_count;
572 return (KBD_IS_ACTIVE(kbd) ? c : -1);
573}
574
575/* check if data is waiting */
576static int
577atkbd_check(keyboard_t *kbd)
578{
579 if (!KBD_IS_ACTIVE(kbd))
580 return FALSE;
581 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc);
582}
583
584/* read char from the keyboard */
585static u_int
586atkbd_read_char(keyboard_t *kbd, int wait)
587{
588 atkbd_state_t *state;
589 u_int action;
590 int scancode;
591 int keycode;
592
593 state = (atkbd_state_t *)kbd->kb_data;
594next_code:
595 /* do we have a composed char to return? */
596 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) {
597 action = state->ks_composed_char;
598 state->ks_composed_char = 0;
599 if (action > UCHAR_MAX)
600 return ERRKEY;
601 return action;
602 }
603
604 /* see if there is something in the keyboard port */
605 if (wait) {
606 do {
607 scancode = read_kbd_data(state->kbdc);
608 } while (scancode == -1);
609 } else {
610 scancode = read_kbd_data_no_wait(state->kbdc);
611 if (scancode == -1)
612 return NOKEY;
613 }
614 ++kbd->kb_count;
615
616#if KBDIO_DEBUG >= 10
617 printf("atkbd_read_char(): scancode:0x%x\n", scancode);
618#endif
619
620 /* return the byte as is for the K_RAW mode */
621 if (state->ks_mode == K_RAW)
622 return scancode;
623
624 /* translate the scan code into a keycode */
625 keycode = scancode & 0x7F;
626 switch (state->ks_prefix) {
627 case 0x00: /* normal scancode */
628 switch(scancode) {
629 case 0xB8: /* left alt (compose key) released */
630 if (state->ks_flags & COMPOSE) {
631 state->ks_flags &= ~COMPOSE;
632 if (state->ks_composed_char > UCHAR_MAX)
633 state->ks_composed_char = 0;
634 }
635 break;
636 case 0x38: /* left alt (compose key) pressed */
637 if (!(state->ks_flags & COMPOSE)) {
638 state->ks_flags |= COMPOSE;
639 state->ks_composed_char = 0;
640 }
641 break;
642 case 0xE0:
643 case 0xE1:
644 state->ks_prefix = scancode;
645 goto next_code;
646 }
647 break;
648 case 0xE0: /* 0xE0 prefix */
649 state->ks_prefix = 0;
650 switch (keycode) {
651 case 0x1C: /* right enter key */
652 keycode = 0x59;
653 break;
654 case 0x1D: /* right ctrl key */
655 keycode = 0x5A;
656 break;
657 case 0x35: /* keypad divide key */
658 keycode = 0x5B;
659 break;
660 case 0x37: /* print scrn key */
661 keycode = 0x5C;
662 break;
663 case 0x38: /* right alt key (alt gr) */
664 keycode = 0x5D;
665 break;
666 case 0x46: /* ctrl-pause/break on AT 101 (see below) */
667 keycode = 0x68;
668 break;
669 case 0x47: /* grey home key */
670 keycode = 0x5E;
671 break;
672 case 0x48: /* grey up arrow key */
673 keycode = 0x5F;
674 break;
675 case 0x49: /* grey page up key */
676 keycode = 0x60;
677 break;
678 case 0x4B: /* grey left arrow key */
679 keycode = 0x61;
680 break;
681 case 0x4D: /* grey right arrow key */
682 keycode = 0x62;
683 break;
684 case 0x4F: /* grey end key */
685 keycode = 0x63;
686 break;
687 case 0x50: /* grey down arrow key */
688 keycode = 0x64;
689 break;
690 case 0x51: /* grey page down key */
691 keycode = 0x65;
692 break;
693 case 0x52: /* grey insert key */
694 keycode = 0x66;
695 break;
696 case 0x53: /* grey delete key */
697 keycode = 0x67;
698 break;
699 /* the following 3 are only used on the MS "Natural" keyboard */
700 case 0x5b: /* left Window key */
701 keycode = 0x69;
702 break;
703 case 0x5c: /* right Window key */
704 keycode = 0x6a;
705 break;
706 case 0x5d: /* menu key */
707 keycode = 0x6b;
708 break;
709 case 0x5e: /* power key */
710 keycode = 0x6d;
711 break;
712 case 0x5f: /* sleep key */
713 keycode = 0x6e;
714 break;
715 case 0x63: /* wake key */
716 keycode = 0x6f;
717 break;
718 default: /* ignore everything else */
719 goto next_code;
720 }
721 break;
722 case 0xE1: /* 0xE1 prefix */
723 /*
724 * The pause/break key on the 101 keyboard produces:
725 * E1-1D-45 E1-9D-C5
726 * Ctrl-pause/break produces:
727 * E0-46 E0-C6 (See above.)
728 */
729 state->ks_prefix = 0;
730 if (keycode == 0x1D)
731 state->ks_prefix = 0x1D;
732 goto next_code;
733 /* NOT REACHED */
734 case 0x1D: /* pause / break */
735 state->ks_prefix = 0;
736 if (keycode != 0x45)
737 goto next_code;
738 keycode = 0x68;
739 break;
740 }
741
742 if (kbd->kb_type == KB_84) {
743 switch (keycode) {
744 case 0x37: /* *(numpad)/print screen */
745 if (state->ks_flags & SHIFTS)
746 keycode = 0x5c; /* print screen */
747 break;
748 case 0x45: /* num lock/pause */
749 if (state->ks_flags & CTLS)
750 keycode = 0x68; /* pause */
751 break;
752 case 0x46: /* scroll lock/break */
753 if (state->ks_flags & CTLS)
754 keycode = 0x6c; /* break */
755 break;
756 }
757 } else if (kbd->kb_type == KB_101) {
758 switch (keycode) {
759 case 0x5c: /* print screen */
760 if (state->ks_flags & ALTS)
761 keycode = 0x54; /* sysrq */
762 break;
763 case 0x68: /* pause/break */
764 if (state->ks_flags & CTLS)
765 keycode = 0x6c; /* break */
766 break;
767 }
768 }
769
770 /* return the key code in the K_CODE mode */
771 if (state->ks_mode == K_CODE)
772 return (keycode | (scancode & 0x80));
773
774 /* compose a character code */
775 if (state->ks_flags & COMPOSE) {
776 switch (keycode | (scancode & 0x80)) {
777 /* key pressed, process it */
778 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */
779 state->ks_composed_char *= 10;
780 state->ks_composed_char += keycode - 0x40;
781 if (state->ks_composed_char > UCHAR_MAX)
782 return ERRKEY;
783 goto next_code;
784 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */
785 state->ks_composed_char *= 10;
786 state->ks_composed_char += keycode - 0x47;
787 if (state->ks_composed_char > UCHAR_MAX)
788 return ERRKEY;
789 goto next_code;
790 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */
791 state->ks_composed_char *= 10;
792 state->ks_composed_char += keycode - 0x4E;
793 if (state->ks_composed_char > UCHAR_MAX)
794 return ERRKEY;
795 goto next_code;
796 case 0x52: /* keypad 0 */
797 state->ks_composed_char *= 10;
798 if (state->ks_composed_char > UCHAR_MAX)
799 return ERRKEY;
800 goto next_code;
801
802 /* key released, no interest here */
803 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */
804 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */
805 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */
806 case 0xD2: /* keypad 0 */
807 goto next_code;
808
809 case 0x38: /* left alt key */
810 break;
811
812 default:
813 if (state->ks_composed_char > 0) {
814 state->ks_flags &= ~COMPOSE;
815 state->ks_composed_char = 0;
816 return ERRKEY;
817 }
818 break;
819 }
820 }
821
822 /* keycode to key action */
823 action = genkbd_keyaction(kbd, keycode, scancode & 0x80,
824 &state->ks_state, &state->ks_accents);
825 if (action == NOKEY)
826 goto next_code;
827 else
828 return action;
829}
830
831/* check if char is waiting */
832static int
833atkbd_check_char(keyboard_t *kbd)
834{
835 atkbd_state_t *state;
836
837 if (!KBD_IS_ACTIVE(kbd))
838 return FALSE;
839 state = (atkbd_state_t *)kbd->kb_data;
840 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0))
841 return TRUE;
842 return kbdc_data_ready(state->kbdc);
843}
844
845/* some useful control functions */
846static int
847atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
848{
849 /* translate LED_XXX bits into the device specific bits */
850 static u_char ledmap[8] = {
851 0, 4, 2, 6, 1, 5, 3, 7,
852 };
853 atkbd_state_t *state = kbd->kb_data;
854 int error;
855 int s;
856 int i;
857
858 s = spltty();
859 switch (cmd) {
860
861 case KDGKBMODE: /* get keyboard mode */
862 *(int *)arg = state->ks_mode;
863 break;
864 case KDSKBMODE: /* set keyboard mode */
865 switch (*(int *)arg) {
866 case K_XLATE:
867 if (state->ks_mode != K_XLATE) {
868 /* make lock key state and LED state match */
869 state->ks_state &= ~LOCK_MASK;
870 state->ks_state |= KBD_LED_VAL(kbd);
871 }
872 /* FALLTHROUGH */
873 case K_RAW:
874 case K_CODE:
875 if (state->ks_mode != *(int *)arg) {
876 atkbd_clear_state(kbd);
877 state->ks_mode = *(int *)arg;
878 }
879 break;
880 default:
881 splx(s);
882 return EINVAL;
883 }
884 break;
885
886 case KDGETLED: /* get keyboard LED */
887 *(int *)arg = KBD_LED_VAL(kbd);
888 break;
889 case KDSETLED: /* set keyboard LED */
890 /* NOTE: lock key state in ks_state won't be changed */
891 if (*(int *)arg & ~LOCK_MASK) {
892 splx(s);
893 return EINVAL;
894 }
895 i = *(int *)arg;
896 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */
897 if (state->ks_mode == K_XLATE &&
898 kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
899 if (i & ALKED)
900 i |= CLKED;
901 else
902 i &= ~CLKED;
903 }
904 if (KBD_HAS_DEVICE(kbd)) {
905 error = write_kbd(state->kbdc, KBDC_SET_LEDS,
906 ledmap[i & LED_MASK]);
907 if (error) {
908 splx(s);
909 return error;
910 }
911 }
912 KBD_LED_VAL(kbd) = *(int *)arg;
913 break;
914
915 case KDGKBSTATE: /* get lock key state */
916 *(int *)arg = state->ks_state & LOCK_MASK;
917 break;
918 case KDSKBSTATE: /* set lock key state */
919 if (*(int *)arg & ~LOCK_MASK) {
920 splx(s);
921 return EINVAL;
922 }
923 state->ks_state &= ~LOCK_MASK;
924 state->ks_state |= *(int *)arg;
925 splx(s);
926 /* set LEDs and quit */
927 return atkbd_ioctl(kbd, KDSETLED, arg);
928
929 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
930 splx(s);
931 if (!KBD_HAS_DEVICE(kbd))
932 return 0;
933 i = typematic(((int *)arg)[0], ((int *)arg)[1]);
934 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i);
935 if (error == 0) {
936 kbd->kb_delay1 = typematic_delay(i);
937 kbd->kb_delay2 = typematic_rate(i);
938 }
939 return error;
940
941 case KDSETRAD: /* set keyboard repeat rate (old interface) */
942 splx(s);
943 if (!KBD_HAS_DEVICE(kbd))
944 return 0;
945 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg);
946 if (error == 0) {
947 kbd->kb_delay1 = typematic_delay(*(int *)arg);
948 kbd->kb_delay2 = typematic_rate(*(int *)arg);
949 }
950 return error;
951
952 case PIO_KEYMAP: /* set keyboard translation table */
953 case PIO_KEYMAPENT: /* set keyboard translation table entry */
954 case PIO_DEADKEYMAP: /* set accent key translation table */
955 state->ks_accents = 0;
956 /* FALLTHROUGH */
957 default:
958 splx(s);
959 return genkbd_commonioctl(kbd, cmd, arg);
960 }
961
962 splx(s);
963 return 0;
964}
965
966/* lock the access to the keyboard */
967static int
968atkbd_lock(keyboard_t *kbd, int lock)
969{
970 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock);
971}
972
973/* clear the internal state of the keyboard */
974static void
975atkbd_clear_state(keyboard_t *kbd)
976{
977 atkbd_state_t *state;
978
979 state = (atkbd_state_t *)kbd->kb_data;
980 state->ks_flags = 0;
981 state->ks_polling = 0;
982 state->ks_state &= LOCK_MASK; /* preserve locking key state */
983 state->ks_accents = 0;
984 state->ks_composed_char = 0;
985#if 0
986 state->ks_prefix = 0; /* XXX */
987#endif
988}
989
990/* save the internal state */
991static int
992atkbd_get_state(keyboard_t *kbd, void *buf, size_t len)
993{
994 if (len == 0)
995 return sizeof(atkbd_state_t);
996 if (len < sizeof(atkbd_state_t))
997 return -1;
998 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t));
999 return 0;
1000}
1001
1002/* set the internal state */
1003static int
1004atkbd_set_state(keyboard_t *kbd, void *buf, size_t len)
1005{
1006 if (len < sizeof(atkbd_state_t))
1007 return ENOMEM;
1008 if (((atkbd_state_t *)kbd->kb_data)->kbdc
1009 != ((atkbd_state_t *)buf)->kbdc)
1010 return ENOMEM;
1011 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t));
1012 return 0;
1013}
1014
1015static int
1016atkbd_poll(keyboard_t *kbd, int on)
1017{
1018 atkbd_state_t *state;
1019 int s;
1020
1021 state = (atkbd_state_t *)kbd->kb_data;
1022 s = spltty();
1023 if (on)
1024 ++state->ks_polling;
1025 else
1026 --state->ks_polling;
1027 splx(s);
1028 return 0;
1029}
1030
1031static void
1032atkbd_shutdown_final(void *v)
1033{
1034#ifdef __sparc64__
1035 keyboard_t *kbd = v;
1036 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc;
1037
1038 /*
1039 * Turn off the translation in preparation for handing the keyboard
1040 * over to the OFW as the OBP driver doesn't use translation and
1041 * also doesn't disable it itself resulting in a broken keymap at
1042 * the boot prompt. Also disable the aux port and the interrupts as
1043 * the OBP driver doesn't use them, i.e. polls the keyboard. Not
1044 * disabling the interrupts doesn't cause real problems but the
1045 * responsiveness is a bit better when they are turned off.
1046 */
1047 send_kbd_command(kbdc, KBDC_DISABLE_KBD);
1048 set_controller_command_byte(kbdc,
1049 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION,
1050 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT);
1051 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1052#endif
1053}
1054
1055/* local functions */
1056
1057static int
1058get_typematic(keyboard_t *kbd)
1059{
1060#ifdef __i386__
1061 /*
1062 * Only some systems allow us to retrieve the keyboard repeat
1063 * rate previously set via the BIOS...
1064 */
1065 struct vm86frame vmf;
1066 u_int32_t p;
1067
1068 bzero(&vmf, sizeof(vmf));
1069 vmf.vmf_ax = 0xc000;
1070 vm86_intcall(0x15, &vmf);
1071 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
1072 return ENODEV;
1073 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
1074 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
1075 return ENODEV;
1076 vmf.vmf_ax = 0x0900;
1077 vm86_intcall(0x16, &vmf);
1078 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
1079 return ENODEV;
1080 vmf.vmf_ax = 0x0306;
1081 vm86_intcall(0x16, &vmf);
1082 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
1083 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
1084 return 0;
1085#else
1086 return ENODEV;
1087#endif /* __i386__ */
1088}
1089
1090static int
1091setup_kbd_port(KBDC kbdc, int port, int intr)
1092{
1093 if (!set_controller_command_byte(kbdc,
1094 KBD_KBD_CONTROL_BITS,
1095 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT)
1096 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT)))
1097 return 1;
1098 return 0;
1099}
1100
1101static int
1102get_kbd_echo(KBDC kbdc)
1103{
1104 /* enable the keyboard port, but disable the keyboard intr. */
1105 if (setup_kbd_port(kbdc, TRUE, FALSE))
1106 /* CONTROLLER ERROR: there is very little we can do... */
1107 return ENXIO;
1108
1109 /* see if something is present */
1110 write_kbd_command(kbdc, KBDC_ECHO);
1111 if (read_kbd_data(kbdc) != KBD_ECHO) {
1112 empty_both_buffers(kbdc, 10);
1113 test_controller(kbdc);
1114 test_kbd_port(kbdc);
1115 return ENXIO;
1116 }
1117
1118 /* enable the keyboard port and intr. */
1119 if (setup_kbd_port(kbdc, TRUE, TRUE)) {
1120 /*
1121 * CONTROLLER ERROR
1122 * This is serious; the keyboard intr is left disabled!
1123 */
1124 return ENXIO;
1125 }
1126
1127 return 0;
1128}
1129
1130static int
1131probe_keyboard(KBDC kbdc, int flags)
1132{
1133 /*
1134 * Don't try to print anything in this function. The low-level
1135 * console may not have been initialized yet...
1136 */
1137 int err;
1138 int c;
1139 int m;
1140
1141 if (!kbdc_lock(kbdc, TRUE)) {
1142 /* driver error? */
1143 return ENXIO;
1144 }
1145
1146 /* temporarily block data transmission from the keyboard */
1147 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1148
1149 /* flush any noise in the buffer */
1150 empty_both_buffers(kbdc, 100);
1151
1152 /* save the current keyboard controller command byte */
1153 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS;
1154 c = get_controller_command_byte(kbdc);
1155 if (c == -1) {
1156 /* CONTROLLER ERROR */
1157 kbdc_set_device_mask(kbdc, m);
1158 kbdc_lock(kbdc, FALSE);
1159 return ENXIO;
1160 }
1161
1162 /*
1163 * The keyboard may have been screwed up by the boot block.
1164 * We may just be able to recover from error by testing the controller
1165 * and the keyboard port. The controller command byte needs to be
1166 * saved before this recovery operation, as some controllers seem
1167 * to set the command byte to particular values.
1168 */
1169 test_controller(kbdc);
1170 if (!(flags & KB_CONF_NO_PROBE_TEST))
1171 test_kbd_port(kbdc);
1172
1173 err = get_kbd_echo(kbdc);
1174
1175 /*
1176 * Even if the keyboard doesn't seem to be present (err != 0),
1177 * we shall enable the keyboard port and interrupt so that
1178 * the driver will be operable when the keyboard is attached
1179 * to the system later. It is NOT recommended to hot-plug
1180 * the AT keyboard, but many people do so...
1181 */
1182 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1183 setup_kbd_port(kbdc, TRUE, TRUE);
1184#if 0
1185 if (err == 0) {
1186 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1187 } else {
1188 /* try to restore the command byte as before */
1189 set_controller_command_byte(kbdc, 0xff, c);
1190 kbdc_set_device_mask(kbdc, m);
1191 }
1192#endif
1193
1194 kbdc_lock(kbdc, FALSE);
1195 return err;
1196}
1197
1198static int
1199init_keyboard(KBDC kbdc, int *type, int flags)
1200{
1201 int codeset;
1202 int id;
1203 int c;
1204
1205 if (!kbdc_lock(kbdc, TRUE)) {
1206 /* driver error? */
1207 return EIO;
1208 }
1209
1210 /* temporarily block data transmission from the keyboard */
1211 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1212
1213 /* save the current controller command byte */
1214 empty_both_buffers(kbdc, 200);
1215 c = get_controller_command_byte(kbdc);
1216 if (c == -1) {
1217 /* CONTROLLER ERROR */
1218 kbdc_lock(kbdc, FALSE);
1219 printf("atkbd: unable to get the current command byte value.\n");
1220 return EIO;
1221 }
1222 if (bootverbose)
1223 printf("atkbd: the current kbd controller command byte %04x\n",
1224 c);
1225#if 0
1226 /* override the keyboard lock switch */
1227 c |= KBD_OVERRIDE_KBD_LOCK;
1228#endif
1229
1230 /* enable the keyboard port, but disable the keyboard intr. */
1231 if (setup_kbd_port(kbdc, TRUE, FALSE)) {
1232 /* CONTROLLER ERROR: there is very little we can do... */
1233 printf("atkbd: unable to set the command byte.\n");
1234 kbdc_lock(kbdc, FALSE);
1235 return EIO;
1236 }
1237
1238 /*
1239 * Check if we have an XT keyboard before we attempt to reset it.
1240 * The procedure assumes that the keyboard and the controller have
1241 * been set up properly by BIOS and have not been messed up
1242 * during the boot process.
1243 */
1244 codeset = -1;
1245 if (flags & KB_CONF_ALT_SCANCODESET)
1246 /* the user says there is a XT keyboard */
1247 codeset = 1;
1248#ifdef KBD_DETECT_XT_KEYBOARD
1249 else if ((c & KBD_TRANSLATION) == 0) {
1250 /* SET_SCANCODE_SET is not always supported; ignore error */
1251 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0)
1252 == KBD_ACK)
1253 codeset = read_kbd_data(kbdc);
1254 }
1255 if (bootverbose)
1256 printf("atkbd: scancode set %d\n", codeset);
1257#endif /* KBD_DETECT_XT_KEYBOARD */
1258
1259 *type = KB_OTHER;
1260 id = get_kbd_id(kbdc);
1261 switch(id) {
1262 case 0x41ab: /* 101/102/... Enhanced */
1263 case 0x83ab: /* ditto */
1264 case 0x54ab: /* SpaceSaver */
1265 case 0x84ab: /* ditto */
1266#if 0
1267 case 0x90ab: /* 'G' */
1268 case 0x91ab: /* 'P' */
1269 case 0x92ab: /* 'A' */
1270#endif
1271 *type = KB_101;
1272 break;
1273 case -1: /* AT 84 keyboard doesn't return ID */
1274 *type = KB_84;
1275 break;
1276 default:
1277 break;
1278 }
1279 if (bootverbose)
1280 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);
1281
1282 /* reset keyboard hardware */
1283 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) {
1284 /*
1285 * KEYBOARD ERROR
1286 * Keyboard reset may fail either because the keyboard
1287 * doen't exist, or because the keyboard doesn't pass
1288 * the self-test, or the keyboard controller on the
1289 * motherboard and the keyboard somehow fail to shake hands.
1290 * It is just possible, particularly in the last case,
1291 * that the keyboard controller may be left in a hung state.
1292 * test_controller() and test_kbd_port() appear to bring
1293 * the keyboard controller back (I don't know why and how,
1294 * though.)
1295 */
1296 empty_both_buffers(kbdc, 10);
1297 test_controller(kbdc);
1298 test_kbd_port(kbdc);
1299 /*
1300 * We could disable the keyboard port and interrupt... but,
1301 * the keyboard may still exist (see above).
1302 */
1303 set_controller_command_byte(kbdc, 0xff, c);
1304 kbdc_lock(kbdc, FALSE);
1305 if (bootverbose)
1306 printf("atkbd: failed to reset the keyboard.\n");
1307 return EIO;
1308 }
1309
1310 /*
1311 * Allow us to set the XT_KEYBD flag so that keyboards
1312 * such as those on the IBM ThinkPad laptop computers can be used
1313 * with the standard console driver.
1314 */
1315 if (codeset == 1) {
1316 if (send_kbd_command_and_data(kbdc,
1317 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) {
1318 /* XT kbd doesn't need scan code translation */
1319 c &= ~KBD_TRANSLATION;
1320 } else {
1321 /*
1322 * KEYBOARD ERROR
1323 * The XT kbd isn't usable unless the proper scan
1324 * code set is selected.
1325 */
1326 set_controller_command_byte(kbdc, 0xff, c);
1327 kbdc_lock(kbdc, FALSE);
1328 printf("atkbd: unable to set the XT keyboard mode.\n");
1329 return EIO;
1330 }
1331 }
1332
1333#if defined(__alpha__) || defined(__sparc64__)
1334 if (send_kbd_command_and_data(
1335 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) {
1336 printf("atkbd: can't set translation.\n");
1337 }
1338 c |= KBD_TRANSLATION;
1339#endif
1340
1341 /* enable the keyboard port and intr. */
1342 if (!set_controller_command_byte(kbdc,
1343 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK,
1344 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK))
1345 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) {
1346 /*
1347 * CONTROLLER ERROR
1348 * This is serious; we are left with the disabled
1349 * keyboard intr.
1350 */
1351 set_controller_command_byte(kbdc, 0xff, c);
1352 kbdc_lock(kbdc, FALSE);
1353 printf("atkbd: unable to enable the keyboard port and intr.\n");
1354 return EIO;
1355 }
1356
1357 kbdc_lock(kbdc, FALSE);
1358 return 0;
1359}
1360
1361static int
1362write_kbd(KBDC kbdc, int command, int data)
1363{
1364 int s;
1365
1366 /* prevent the timeout routine from polling the keyboard */
1367 if (!kbdc_lock(kbdc, TRUE))
1368 return EBUSY;
1369
1370 /* disable the keyboard and mouse interrupt */
1371 s = spltty();
1372#if 0
1373 c = get_controller_command_byte(kbdc);
1374 if ((c == -1)
1375 || !set_controller_command_byte(kbdc,
1376 kbdc_get_device_mask(kbdc),
1377 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
1378 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
1379 /* CONTROLLER ERROR */
1380 kbdc_lock(kbdc, FALSE);
1381 splx(s);
1382 return EIO;
1383 }
1384 /*
1385 * Now that the keyboard controller is told not to generate
1386 * the keyboard and mouse interrupts, call `splx()' to allow
1387 * the other tty interrupts. The clock interrupt may also occur,
1388 * but the timeout routine (`scrn_timer()') will be blocked
1389 * by the lock flag set via `kbdc_lock()'
1390 */
1391 splx(s);
1392#endif
1393
1394 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK)
1395 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1396
1397#if 0
1398 /* restore the interrupts */
1399 if (!set_controller_command_byte(kbdc,
1400 kbdc_get_device_mask(kbdc),
1401 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
1402 /* CONTROLLER ERROR */
1403 }
1404#else
1405 splx(s);
1406#endif
1407 kbdc_lock(kbdc, FALSE);
1408
1409 return 0;
1410}
1411
1412static int
1413get_kbd_id(KBDC kbdc)
1414{
1415 int id1, id2;
1416
1417 empty_both_buffers(kbdc, 10);
1418 id1 = id2 = -1;
1419 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK)
1420 return -1;
1421
1422 DELAY(10000); /* 10 msec delay */
1423 id1 = read_kbd_data(kbdc);
1424 if (id1 != -1)
1425 id2 = read_kbd_data(kbdc);
1426
1427 if ((id1 == -1) || (id2 == -1)) {
1428 empty_both_buffers(kbdc, 10);
1429 test_controller(kbdc);
1430 test_kbd_port(kbdc);
1431 return -1;
1432 }
1433 return ((id2 << 8) | id1);
1434}
1435
1436static int delays[] = { 250, 500, 750, 1000 };
1437static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63,
1438 68, 76, 84, 92, 100, 110, 118, 126,
1439 136, 152, 168, 184, 200, 220, 236, 252,
1440 272, 304, 336, 368, 400, 440, 472, 504 };
1441
1442static int
1443typematic_delay(int i)
1444{
1445 return delays[(i >> 5) & 3];
1446}
1447
1448static int
1449typematic_rate(int i)
1450{
1451 return rates[i & 0x1f];
1452}
1453
1454static int
1455typematic(int delay, int rate)
1456{
1457 int value;
1458 int i;
1459
1460 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) {
1461 if (delay >= delays[i])
1462 break;
1463 }
1464 value = i << 5;
1465 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) {
1466 if (rate >= rates[i])
1467 break;
1468 }
1469 value |= i;
1470 return value;
1471}
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