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495 giacomo 1
/*
2
 * AT and PS/2 keyboard driver
3
 *
4
 * Copyright (c) 1999-2002 Vojtech Pavlik
5
 */
6
 
7
/*
8
 * This program is free software; you can redistribute it and/or modify it
9
 * under the terms of the GNU General Public License version 2 as published by
10
 * the Free Software Foundation.
11
 */
12
 
13
/*
14
 * This driver can handle standard AT keyboards and PS/2 keyboards in
15
 * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
16
 * input-only controllers and AT keyboards connected over a one way RS232
17
 * converter.
18
 */
19
 
20
#include <linuxcomp.h>
21
 
22
#include <linux/delay.h>
23
#include <linux/module.h>
24
#include <linux/slab.h>
25
#include <linux/interrupt.h>
26
#include <linux/init.h>
27
#include <linux/input.h>
28
#include <linux/serio.h>
29
#include <linux/workqueue.h>
30
#include <linux/timer.h>
31
 
32
//#define ATKBD_DEBUG
33
 
34
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
35
MODULE_DESCRIPTION("AT and PS/2 keyboard driver");
36
MODULE_PARM(atkbd_set, "1i");
37
MODULE_PARM(atkbd_reset, "1i");
38
MODULE_PARM(atkbd_softrepeat, "1i");
39
MODULE_LICENSE("GPL");
40
 
41
static int atkbd_set = 2;
42
#if defined(__i386__) || defined (__x86_64__)
43
static int atkbd_reset;
44
#else
45
static int atkbd_reset = 1;
46
#endif
47
static int atkbd_softrepeat;
48
 
49
/*
50
 * Scancode to keycode tables. These are just the default setting, and
51
 * are loadable via an userland utility.
52
 */
53
 
54
static unsigned char atkbd_set2_keycode[512] = {
55
          0, 67, 65, 63, 61, 59, 60, 88,  0, 68, 66, 64, 62, 15, 41, 85,
56
          0, 56, 42,182, 29, 16,  2, 89,  0,  0, 44, 31, 30, 17,  3, 90,
57
          0, 46, 45, 32, 18,  5,  4, 91, 90, 57, 47, 33, 20, 19,  6,  0,
58
         91, 49, 48, 35, 34, 21,  7,  0,  0,  0, 50, 36, 22,  8,  9,  0,
59
          0, 51, 37, 23, 24, 11, 10,  0,  0, 52, 53, 38, 39, 25, 12,  0,
60
        122, 89, 40,120, 26, 13,  0,  0, 58, 54, 28, 27,  0, 43,  0,  0,
61
         85, 86, 90, 91, 92, 93, 14, 94, 95, 79,183, 75, 71,121,  0,123,
62
         82, 83, 80, 76, 77, 72,  1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
63
          0,  0,  0, 65, 99,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
64
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
65
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
66
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
67
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
68
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
69
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
70
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,255,
71
          0,  0, 92, 90, 85,  0,137,  0,  0,  0,  0, 91, 89,144,115,  0,
72
        217,100,255,  0, 97,165,164,  0,156,  0,  0,140,115,  0,  0,125,
73
        173,114,  0,113,152,163,151,126,128,166,  0,140,  0,147,  0,127,
74
        159,167,115,160,164,  0,  0,116,158,  0,150,166,  0,  0,  0,142,
75
        157,  0,114,166,168,  0,  0,213,155,  0, 98,113,  0,163,  0,138,
76
        226,  0,  0,  0,  0,  0,153,140,  0,255, 96,  0,  0,  0,143,  0,
77
        133,  0,116,  0,143,  0,174,133,  0,107,  0,105,102,  0,  0,112,
78
        110,111,108,112,106,103,  0,119,  0,118,109,  0, 99,104,119
79
};
80
 
81
static unsigned char atkbd_set3_keycode[512] = {
82
          0,  0,  0,  0,  0,  0,  0, 59,  1,138,128,129,130, 15, 41, 60,
83
        131, 29, 42, 86, 58, 16,  2, 61,133, 56, 44, 31, 30, 17,  3, 62,
84
        134, 46, 45, 32, 18,  5,  4, 63,135, 57, 47, 33, 20, 19,  6, 64,
85
        136, 49, 48, 35, 34, 21,  7, 65,137,100, 50, 36, 22,  8,  9, 66,
86
        125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
87
        113,114, 40, 84, 26, 13, 87, 99, 97, 54, 28, 27, 43, 84, 88, 70,
88
        108,105,119,103,111,107, 14,110,  0, 79,106, 75, 71,109,102,104,
89
         82, 83, 80, 76, 77, 72, 69, 98,  0, 96, 81,  0, 78, 73, 55, 85,
90
         89, 90, 91, 92, 74,185,184,182,  0,  0,  0,125,126,127,112,  0,
91
          0,139,150,163,165,115,152,150,166,140,160,154,113,114,167,168,
92
        148,149,147,140,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
93
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
94
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
95
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
96
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
97
          0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,255
98
};
99
 
100
static unsigned char atkbd_unxlate_table[128] = {
101
          0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
102
         21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
103
         35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
104
         50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88,  5,  6,  4, 12,  3,
105
         11,  2, 10,  1,  9,119,126,108,117,125,123,107,115,116,121,105,
106
        114,122,112,113,127, 96, 97,120,  7, 15, 23, 31, 39, 47, 55, 63,
107
         71, 79, 86, 94,  8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
108
         19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
109
};
110
 
111
#define ATKBD_CMD_SETLEDS       0x10ed
112
#define ATKBD_CMD_GSCANSET      0x11f0
113
#define ATKBD_CMD_SSCANSET      0x10f0
114
#define ATKBD_CMD_GETID         0x02f2
115
#define ATKBD_CMD_SETREP        0x10f3
116
#define ATKBD_CMD_ENABLE        0x00f4
117
#define ATKBD_CMD_RESET_DIS     0x00f5
118
#define ATKBD_CMD_SETALL_MBR    0x00fa
119
#define ATKBD_CMD_RESET_BAT     0x02ff
120
#define ATKBD_CMD_RESEND        0x00fe
121
#define ATKBD_CMD_EX_ENABLE     0x10ea
122
#define ATKBD_CMD_EX_SETLEDS    0x20eb
123
#define ATKBD_CMD_OK_GETID      0x02e8
124
 
125
#define ATKBD_RET_ACK           0xfa
126
#define ATKBD_RET_NAK           0xfe
127
#define ATKBD_RET_BAT           0xaa
128
#define ATKBD_RET_EMUL0         0xe0
129
#define ATKBD_RET_EMULX         0x80
130
#define ATKBD_RET_EMUL1         0xe1
131
#define ATKBD_RET_RELEASE       0xf0
132
 
133
#define ATKBD_KEY_UNKNOWN         0
134
#define ATKBD_KEY_NULL          255
135
 
136
/*
137
 * The atkbd control structure
138
 */
139
 
140
struct atkbd {
141
        unsigned char keycode[512];
142
        struct input_dev dev;
143
        struct serio *serio;
144
        struct timer_list timer;
145
        char name[64];
146
        char phys[32];
147
        unsigned char cmdbuf[4];
148
        unsigned char cmdcnt;
149
        unsigned char set;
150
        unsigned char release;
151
        int lastkey;
152
        volatile signed char ack;
153
        unsigned char emul;
154
        unsigned short id;
155
        unsigned char write;
156
        unsigned char translated;
157
        unsigned char resend;
158
        unsigned char bat_xl;
159
        unsigned int last;
160
        unsigned long time;
161
};
162
 
163
/*
164
 * atkbd_interrupt(). Here takes place processing of data received from
165
 * the keyboard into events.
166
 */
167
 
168
static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
169
                        unsigned int flags, struct pt_regs *regs)
170
{
171
        struct atkbd *atkbd = serio->private;
172
        unsigned int code = data;
173
        int value;
174
 
175
#ifdef ATKBD_DEBUG
176
        printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
177
#endif
178
 
179
#if !defined(__i386__) && !defined (__x86_64__)
180
        if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
181
                printk("atkbd.c: frame/parity error: %02x\n", flags);
182
                serio_write(serio, ATKBD_CMD_RESEND);
183
                atkbd->resend = 1;
184
                goto out;
185
        }
186
 
187
        if (!flags && data == ATKBD_RET_ACK)
188
                atkbd->resend = 0;
189
#endif
190
 
191
        switch (code) {
192
                case ATKBD_RET_ACK:
193
                        atkbd->ack = 1;
194
                        goto out;
195
                case ATKBD_RET_NAK:
196
                        atkbd->ack = -1;
197
                        goto out;
198
        }
199
 
200
        if (atkbd->translated) do {
201
 
202
                if (atkbd->emul != 1) {
203
                        if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
204
                                break;
205
                        if (code == ATKBD_RET_BAT) {
206
                                if (!atkbd->bat_xl)
207
                                        break;
208
                                atkbd->bat_xl = 0;
209
                        }
210
                        if (code == (ATKBD_RET_BAT & 0x7f))
211
                                atkbd->bat_xl = 1;
212
                }
213
 
214
                if (code < 0x80) {
215
                        code = atkbd_unxlate_table[code];
216
                        break;
217
                }
218
 
219
                if (atkbd->cmdcnt)
220
                        break;
221
 
222
                code = atkbd_unxlate_table[code & 0x7f];
223
                atkbd->release = 1;
224
 
225
        } while (0);
226
 
227
        if (atkbd->cmdcnt) {
228
                atkbd->cmdbuf[--atkbd->cmdcnt] = code;
229
                goto out;
230
        }
231
 
232
        switch (code) {
233
                case ATKBD_RET_BAT:
234
                        serio_rescan(atkbd->serio);
235
                        goto out;
236
                case ATKBD_RET_EMUL0:
237
                        atkbd->emul = 1;
238
                        goto out;
239
                case ATKBD_RET_EMUL1:
240
                        atkbd->emul = 2;
241
                        goto out;
242
                case ATKBD_RET_RELEASE:
243
                        atkbd->release = 1;
244
                        goto out;
245
        }
246
 
247
        if (atkbd->emul) {
248
                if (--atkbd->emul)
249
                        goto out;
250
                code |= 0x100;
251
        }
252
 
253
        switch (atkbd->keycode[code]) {
254
                case ATKBD_KEY_NULL:
255
                        break;
256
                case ATKBD_KEY_UNKNOWN:
257
                        printk(KERN_WARNING "atkbd.c: Unknown key %s (%s set %d, code %#x, data %#x, on %s).\n",
258
                                atkbd->release ? "released" : "pressed",
259
                                atkbd->translated ? "translated" : "raw",
260
                                atkbd->set, code, data, serio->phys);
261
                        break;
262
                default:
263
                        value = atkbd->release ? 0 :
264
                                (1 + (!atkbd_softrepeat && test_bit(atkbd->keycode[code], atkbd->dev.key)));
265
 
266
                        switch (value) {        /* Workaround Toshiba laptop multiple keypress */
267
                                case 0:
268
                                        atkbd->last = 0;
269
                                        break;
270
                                case 1:
271
                                        atkbd->last = code;
272
                                        atkbd->time = jiffies26 + (atkbd->dev.rep[REP_DELAY] * HZ + 500) / 1000 / 2;
273
                                        break;
274
                                case 2:
275
                                        if (!time_after(jiffies26, atkbd->time) && atkbd->last == code)
276
                                                value = 1;
277
                                        break;
278
                        }
279
 
280
                        input_regs(&atkbd->dev, regs);
281
                        input_event(&atkbd->dev, EV_KEY, atkbd->keycode[code], value);
282
                        input_sync(&atkbd->dev);
283
        }
284
 
285
        atkbd->release = 0;
286
out:
287
        return IRQ_HANDLED;
288
}
289
 
290
/*
291
 * atkbd_sendbyte() sends a byte to the keyboard, and waits for
292
 * acknowledge. It doesn't handle resends according to the keyboard
293
 * protocol specs, because if these are needed, the keyboard needs
294
 * replacement anyway, and they only make a mess in the protocol.
295
 */
296
 
297
static int atkbd_sendbyte(struct atkbd *atkbd, unsigned char byte)
298
{
299
        int timeout = 20000; /* 200 msec */
300
        atkbd->ack = 0;
301
 
302
#ifdef ATKBD_DEBUG
303
        printk(KERN_DEBUG "atkbd.c: Sent: %02x\n", byte);
304
#endif
305
        if (serio_write(atkbd->serio, byte))
306
                return -1;
307
 
308
        while (!atkbd->ack && timeout--) udelay(10);
309
 
310
        return -(atkbd->ack <= 0);
311
}
312
 
313
/*
314
 * atkbd_command() sends a command, and its parameters to the keyboard,
315
 * then waits for the response and puts it in the param array.
316
 */
317
 
318
static int atkbd_command(struct atkbd *atkbd, unsigned char *param, int command)
319
{
320
        int timeout = 500000; /* 500 msec */
321
        int send = (command >> 12) & 0xf;
322
        int receive = (command >> 8) & 0xf;
323
        int i;
324
 
325
        atkbd->cmdcnt = receive;
326
 
327
        if (command == ATKBD_CMD_RESET_BAT)
328
                timeout = 2000000; /* 2 sec */
329
 
330
        if (command & 0xff)
331
                if (atkbd_sendbyte(atkbd, command & 0xff))
332
                        return (atkbd->cmdcnt = 0) - 1;
333
 
334
        for (i = 0; i < send; i++)
335
                if (atkbd_sendbyte(atkbd, param[i]))
336
                        return (atkbd->cmdcnt = 0) - 1;
337
 
338
        while (atkbd->cmdcnt && timeout--) {
339
 
340
                if (atkbd->cmdcnt == 1 &&
341
                    command == ATKBD_CMD_RESET_BAT && timeout > 100000)
342
                        timeout = 100000;
343
 
344
                if (atkbd->cmdcnt == 1 && command == ATKBD_CMD_GETID &&
345
                    atkbd->cmdbuf[1] != 0xab && atkbd->cmdbuf[1] != 0xac) {
346
                        atkbd->cmdcnt = 0;
347
                        break;
348
                }
349
 
350
                udelay(1);
351
        }
352
 
353
        if (param)
354
                for (i = 0; i < receive; i++)
355
                        param[i] = atkbd->cmdbuf[(receive - 1) - i];
356
 
357
        if (command == ATKBD_CMD_RESET_BAT && atkbd->cmdcnt == 1)
358
                atkbd->cmdcnt = 0;
359
 
360
        if (atkbd->cmdcnt) {
361
                atkbd->cmdcnt = 0;
362
                return -1;
363
        }
364
 
365
        return 0;
366
}
367
 
368
/*
369
 * Event callback from the input module. Events that change the state of
370
 * the hardware are processed here.
371
 */
372
 
373
static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
374
{
375
        struct atkbd *atkbd = dev->private;
376
        struct { int p; u8 v; } period[] =     
377
                { {30, 0x00}, {25, 0x02}, {20, 0x04}, {15, 0x08}, {10, 0x0c}, {7, 0x10}, {5, 0x14}, {0, 0x14} };
378
        struct { int d; u8 v; } delay[] =
379
                { {1000, 0x60}, {750, 0x40}, {500, 0x20}, {250, 0x00}, {0, 0x00} };
380
        char param[2];
381
        int i, j;
382
 
383
        if (!atkbd->write)
384
                return -1;
385
 
386
        switch (type) {
387
 
388
                case EV_LED:
389
 
390
                        *param = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
391
                               | (test_bit(LED_NUML,    dev->led) ? 2 : 0)
392
                               | (test_bit(LED_CAPSL,   dev->led) ? 4 : 0);
393
                        atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS);
394
 
395
                        if (atkbd->set == 4) {
396
                                param[0] = 0;
397
                                param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
398
                                         | (test_bit(LED_SLEEP,   dev->led) ? 0x02 : 0)
399
                                         | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
400
                                         | (test_bit(LED_MISC,    dev->led) ? 0x10 : 0)
401
                                         | (test_bit(LED_MUTE,    dev->led) ? 0x20 : 0);
402
                                atkbd_command(atkbd, param, ATKBD_CMD_EX_SETLEDS);
403
                        }
404
 
405
                        return 0;
406
 
407
 
408
                case EV_REP:
409
 
410
                        if (atkbd_softrepeat) return 0;
411
 
412
                        i = j = 0;
413
                        while (period[i].p > dev->rep[REP_PERIOD]) i++;
414
                        while (delay[j].d > dev->rep[REP_DELAY]) j++;
415
                        dev->rep[REP_PERIOD] = period[i].p;
416
                        dev->rep[REP_DELAY] = delay[j].d;
417
                        param[0] = period[i].v | delay[j].v;
418
                        atkbd_command(atkbd, param, ATKBD_CMD_SETREP);
419
 
420
                        return 0;
518 mauro 421
 
422
                case EV_PWR:
423
                        if (code) {
424
                                /* Enable the keyboard to receive keystrokes. */
425
                                if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE)) {
426
                                        printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", atkbd->serio->phys);
427
                                        return -1;
428
                                }
429
                        } else {
430
                                /* Disable the keyboard to receive keystrokes. */
431
                                if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_DIS)) {
432
                                        printk(KERN_ERR "atkbd.c: Failed to disable keyboard on %s\n", atkbd->serio->phys);
433
                                        return -1;
434
                                }
435
                        }
436
                        return 0;      
495 giacomo 437
        }
438
 
439
        return -1;
440
}
441
 
442
/*
443
 * atkbd_probe() probes for an AT keyboard on a serio port.
444
 */
445
 
446
static int atkbd_probe(struct atkbd *atkbd)
447
{
448
        unsigned char param[2];
449
 
450
/*
451
 * Some systems, where the bit-twiddling when testing the io-lines of the
452
 * controller may confuse the keyboard need a full reset of the keyboard. On
453
 * these systems the BIOS also usually doesn't do it for us.
454
 */
455
 
456
        if (atkbd_reset)
457
                if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT))
458
                        printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", atkbd->serio->phys);
459
 
460
/*
461
 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
462
 * Some keyboards report different values, but the first byte is always 0xab or
463
 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
464
 * should make sure we don't try to set the LEDs on it.
465
 */
466
 
467
        if (atkbd_command(atkbd, param, ATKBD_CMD_GETID)) {
468
 
469
/*
470
 * If the get ID command failed, we check if we can at least set the LEDs on
471
 * the keyboard. This should work on every keyboard out there. It also turns
472
 * the LEDs off, which we want anyway.
473
 */
474
                param[0] = 0;
475
                if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
476
                        return -1;
477
                atkbd->id = 0xabba;
478
                return 0;
479
        }
480
 
481
        if (param[0] != 0xab && param[0] != 0xac)
482
                return -1;
483
        atkbd->id = (param[0] << 8) | param[1];
484
 
485
 
486
        return 0;
487
}
488
 
489
/*
490
 * atkbd_set_3 checks if a keyboard has a working Set 3 support, and
491
 * sets it into that. Unfortunately there are keyboards that can be switched
492
 * to Set 3, but don't work well in that (BTC Multimedia ...)
493
 */
494
 
495
static int atkbd_set_3(struct atkbd *atkbd)
496
{
497
        unsigned char param[2];
498
 
499
/*
500
 * For known special keyboards we can go ahead and set the correct set.
501
 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
502
 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
503
 */
504
 
505
        if (atkbd->translated)
506
                return 2;
507
 
508
        if (atkbd->id == 0xaca1) {
509
                param[0] = 3;
510
                atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET);
511
                return 3;
512
        }
513
 
514
        if (atkbd_set != 2)
515
                if (!atkbd_command(atkbd, param, ATKBD_CMD_OK_GETID)) {
516
                        atkbd->id = param[0] << 8 | param[1];
517
                        return 2;
518
                }
519
 
520
        if (atkbd_set == 4) {
521
                param[0] = 0x71;
522
                if (!atkbd_command(atkbd, param, ATKBD_CMD_EX_ENABLE))
523
                        return 4;
524
        }
525
 
526
        if (atkbd_set != 3)
527
                return 2;
528
 
529
        param[0] = 3;
530
        if (atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET))
531
                return 2;
532
 
533
        param[0] = 0;
534
        if (atkbd_command(atkbd, param, ATKBD_CMD_GSCANSET))
535
                return 2;
536
 
537
        if (param[0] != 3) {
538
                param[0] = 2;
539
                if (atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET))
540
                return 2;
541
        }
542
 
543
        atkbd_command(atkbd, param, ATKBD_CMD_SETALL_MBR);
544
 
545
        return 3;
546
}
547
 
548
static int atkbd_enable(struct atkbd *atkbd)
549
{
550
        unsigned char param[1];
551
 
552
/*
553
 * Set the LEDs to a defined state.
554
 */
555
 
556
        param[0] = 0;
557
        if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
558
                return -1;
559
 
560
/*
561
 * Set autorepeat to fastest possible.
562
 */
563
 
564
        param[0] = 0;
565
        if (atkbd_command(atkbd, param, ATKBD_CMD_SETREP))
566
                return -1;
567
 
568
/*
569
 * Enable the keyboard to receive keystrokes.
570
 */
571
 
518 mauro 572
        /*if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE)) {
495 giacomo 573
                printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
574
                        atkbd->serio->phys);
575
                return -1;
518 mauro 576
        }*/
495 giacomo 577
 
578
        return 0;
579
}
580
 
581
/*
582
 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
583
 * reboot.
584
 */
585
 
586
static void atkbd_cleanup(struct serio *serio)
587
{
588
        struct atkbd *atkbd = serio->private;
589
        atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT);
590
}
591
 
592
/*
593
 * atkbd_disconnect() closes and frees.
594
 */
595
 
596
static void atkbd_disconnect(struct serio *serio)
597
{
598
        struct atkbd *atkbd = serio->private;
599
        input_unregister_device(&atkbd->dev);
600
        serio_close(serio);
601
        kfree(atkbd);
602
}
603
 
604
/*
605
 * atkbd_connect() is called when the serio module finds and interface
606
 * that isn't handled yet by an appropriate device driver. We check if
607
 * there is an AT keyboard out there and if yes, we register ourselves
608
 * to the input module.
609
 */
610
 
611
static void atkbd_connect(struct serio *serio, struct serio_dev *dev)
612
{
613
        struct atkbd *atkbd;
614
        int i;
615
 
616
        if (!(atkbd = kmalloc(sizeof(struct atkbd), GFP_KERNEL)))
617
                return;
618
        memset(atkbd, 0, sizeof(struct atkbd));
619
 
620
        switch (serio->type & SERIO_TYPE) {
621
 
622
                case SERIO_8042_XL:
623
                        atkbd->translated = 1;
624
                case SERIO_8042:
625
                        if (serio->write)
626
                                atkbd->write = 1;
627
                        break;
628
                case SERIO_RS232:
629
                        if ((serio->type & SERIO_PROTO) == SERIO_PS2SER)
630
                                break;
631
                default:
632
                        kfree(atkbd);
633
                        return;
634
        }
635
 
636
        if (atkbd->write) {
518 mauro 637
                atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP) | BIT(EV_PWR);
495 giacomo 638
                atkbd->dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
639
        } else  atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
640
 
641
        if (!atkbd_softrepeat) {
642
                atkbd->dev.rep[REP_DELAY] = 250;
643
                atkbd->dev.rep[REP_PERIOD] = 33;
644
        }
645
 
646
        atkbd->serio = serio;
647
 
648
        init_input_dev(&atkbd->dev);
649
 
650
        atkbd->dev.keycode = atkbd->keycode;
651
        atkbd->dev.keycodesize = sizeof(unsigned char);
652
        atkbd->dev.keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
653
        atkbd->dev.event = atkbd_event;
654
        atkbd->dev.private = atkbd;
655
 
656
        serio->private = atkbd;
657
 
658
        if (serio_open(serio, dev)) {
659
                kfree(atkbd);
660
                return;
661
        }
662
 
663
        if (atkbd->write) {
664
 
665
                if (atkbd_probe(atkbd)) {
666
                        serio_close(serio);
667
                        kfree(atkbd);
668
                        return;
669
                }
670
 
671
                atkbd->set = atkbd_set_3(atkbd);
672
                atkbd_enable(atkbd);
673
 
674
        } else {
675
                atkbd->set = 2;
676
                atkbd->id = 0xab00;
677
        }
678
 
679
        if (atkbd->set == 4) {
680
                atkbd->dev.ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC);
681
                sprintf26(atkbd->name, "AT Set 2 Extended keyboard");
682
        } else
683
                sprintf26(atkbd->name, "AT %s Set %d keyboard",
684
                        atkbd->translated ? "Translated" : "Raw", atkbd->set);
685
 
686
        sprintf26(atkbd->phys, "%s/input0", serio->phys);
687
 
688
        if (atkbd->set == 3)
689
                memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
690
        else
691
                memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
692
 
693
        atkbd->dev.name = atkbd->name;
694
        atkbd->dev.phys = atkbd->phys;
695
        atkbd->dev.id.bustype = BUS_I8042;
696
        atkbd->dev.id.vendor = 0x0001;
697
        atkbd->dev.id.product = atkbd->set;
698
        atkbd->dev.id.version = atkbd->id;
699
 
700
        for (i = 0; i < 512; i++)
701
                if (atkbd->keycode[i] && atkbd->keycode[i] < 255)
702
                        set_bit(atkbd->keycode[i], atkbd->dev.keybit);
703
 
704
        input_register_device(&atkbd->dev);
705
 
523 mauro 706
        printk(KERN_INFO "input: %s on %s\n", atkbd->name, serio->phys);
495 giacomo 707
}
708
 
709
 
710
static struct serio_dev atkbd_dev = {
711
        .interrupt =    atkbd_interrupt,
712
        .connect =      atkbd_connect,
713
        .disconnect =   atkbd_disconnect,
714
        .cleanup =      atkbd_cleanup,
715
};
716
 
717
#ifndef MODULE
718
static int __init atkbd_setup_set(char *str)
719
{
720
        int ints[4];
721
        str = get_options(str, ARRAY_SIZE(ints), ints);
722
        if (ints[0] > 0) atkbd_set = ints[1];
723
        return 1;
724
}
725
static int __init atkbd_setup_reset(char *str)
726
{
727
        int ints[4];
728
        str = get_options(str, ARRAY_SIZE(ints), ints);
729
        if (ints[0] > 0) atkbd_reset = ints[1];
730
        return 1;
731
}
732
 
733
__setup("atkbd_set=", atkbd_setup_set);
734
__setup("atkbd_reset", atkbd_setup_reset);
735
#endif
736
 
737
int __init atkbd_init(void)
738
{
739
        serio_register_device(&atkbd_dev);
740
        return 0;
741
}
742
 
743
void __exit atkbd_exit(void)
744
{
745
        serio_unregister_device(&atkbd_dev);
746
}
747
 
748
module_init(atkbd_init);
749
module_exit(atkbd_exit);