summaryrefslogtreecommitdiff
path: root/recipes/linux/linux-rp-2.6.23/tosa-keyboard-r19.patch
blob: 948c27fdce0fe08cddaf423f696570f9e316f8f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
 drivers/input/keyboard/Kconfig   |   12 -
 drivers/input/keyboard/Makefile  |    1 
 drivers/input/keyboard/tosakbd.c |  467 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 479 insertions(+), 1 deletion(-)

Index: git/drivers/input/keyboard/Kconfig
===================================================================
--- git.orig/drivers/input/keyboard/Kconfig	2006-10-31 16:08:57.000000000 +0000
+++ git/drivers/input/keyboard/Kconfig	2006-11-07 22:13:10.000000000 +0000
@@ -148,12 +148,22 @@ config KEYBOARD_SPITZ
 	depends on PXA_SHARPSL
 	default y
 	help
-	  Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000,
+    	  Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000,
 	  SL-C3000 and Sl-C3100 series of PDAs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called spitzkbd.
 
+config KEYBOARD_TOSA
+	tristate "Tosa keyboard"
+	depends on PXA_SHARPSL
+	default y
+	help
+	  Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tosakbd.
+
 config KEYBOARD_AMIGA
 	tristate "Amiga keyboard"
 	depends on AMIGA
Index: git/drivers/input/keyboard/Makefile
===================================================================
--- git.orig/drivers/input/keyboard/Makefile	2006-10-31 16:08:57.000000000 +0000
+++ git/drivers/input/keyboard/Makefile	2006-11-07 22:13:10.000000000 +0000
@@ -17,3 +17,4 @@ obj-$(CONFIG_KEYBOARD_SPITZ)		+= spitzkb
 obj-$(CONFIG_KEYBOARD_AAED2000)		+= aaed2000_kbd.o
 obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o
 obj-$(CONFIG_KEYBOARD_ASIC3)		+= asic3_keys.o
+obj-$(CONFIG_KEYBOARD_TOSA)		+= tosakbd.o
Index: git/drivers/input/keyboard/tosakbd.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ git/drivers/input/keyboard/tosakbd.c	2006-11-07 23:27:19.000000000 +0000
@@ -0,0 +1,467 @@
+/*
+ *  Keyboard driver for Sharp Tosa models (SL-6000x)
+ *
+ *  Copyright (c) 2005 Dirk Opfer
+ *
+ *  Based on xtkbd.c/locomkbd.c/corgikbd.c
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <asm/arch/tosa.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+
+
+#define TOSA_KEY_STROBE_NUM	(11)
+#define TOSA_KEY_SENSE_NUM	(7)
+
+#define KEYMASK_ON		(0x1<<0)
+#define KEYMASK_REC		(0x1<<1)
+#define KEYMASK_SYNC		(0x1<<2)
+
+#define KB_ROWS			7
+#define KB_COLS			11
+#define KB_ROWMASK(r)		(1 << (r))
+#define SCANCODE(r,c)		( ((r)<<4) + (c) + 1 )
+#define	NR_SCANCODES		(SCANCODE(KB_ROWS-1,KB_COLS)+1+1) 
+
+#define SCAN_INTERVAL		(HZ/10)
+#define HP_SCAN_INTERVAL	(150) /* ms */
+#define HP_STABLE_COUNT		2
+
+#define TOSA_KEY_CALENDER       KEY_F1
+#define TOSA_KEY_ADDRESS        KEY_F2
+#define TOSA_KEY_FN             KEY_F3
+#define TOSA_KEY_CANCEL        	KEY_F4
+#define TOSA_KEY_OFF            KEY_SUSPEND
+#define TOSA_KEY_CENTER         KEY_F5
+#define TOSA_KEY_REC            KEY_F6
+#define TOSA_KEY_LIGHT          KEY_F7
+#define TOSA_KEY_RECORD         KEY_F8
+#define TOSA_KEY_HOME           KEY_F9
+#define TOSA_KEY_MAIL           KEY_F10
+#define TOSA_KEY_OK             KEY_F11
+#define TOSA_KEY_MENU           KEY_F12
+#define TOSA_KEY_SYNC           KEY_F13
+
+#define GET_ROWS_STATUS(c)	((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT)
+#define KB_DISCHARGE_DELAY	10
+#define KB_ACTIVATE_DELAY	10
+
+
+static unsigned char tosakbd_keycode[NR_SCANCODES] = {
+	0,                                                                                                              	/* 0 */
+	0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P, 0, 0, 0, TOSA_KEY_OFF, 0, 0, 0, 0,					/*1 - 16*/
+	KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA, 0, 0, 0, TOSA_KEY_RECORD, 0, 0, 0, 0,				/*17 - 32*/
+	KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT, 0, 0, 0, TOSA_KEY_SYNC, 0, 0, 0, 0,				/*33 - 48*/
+	KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESS, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK, KEY_LEFTSHIFT, 0 , 0,0 , 0, 0, 0, 0,	/*49 - 64*/
+	KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDER, TOSA_KEY_HOME, TOSA_KEY_REC, TOSA_KEY_LIGHT, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0,	/*65 - 80*/
+	KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0, 0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0,			/*81 - 96*/
+	KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0,  			/*97 - 109*/
+};
+
+struct tosakbd {
+	unsigned char keycode[ARRAY_SIZE(tosakbd_keycode)];
+	struct input_dev *input;
+
+	spinlock_t lock;
+	struct timer_list timer;
+	struct timer_list hptimer;
+
+	int hp_state;
+	int hp_count;
+
+	unsigned int suspended;
+	unsigned long suspend_jiffies;
+};
+
+/* Helper functions for reading the keyboard matrix 
+ * Note: We should really be using pxa_gpio_mode to alter GPDR but it 
+ *       requires a function call per GPIO bit which is excessive
+ *       when we need to access 12 bits at once, multiple times.
+ * These functions must be called within local_irq_save()/local_irq_restore()
+ * or similar. 
+ */
+static inline void tosakbd_discharge_all(void)
+{
+	/* STROBE All HiZ */
+	GPCR1  = TOSA_GPIO_HIGH_STROBE_BIT;
+	GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT;
+	GPCR2  = TOSA_GPIO_LOW_STROBE_BIT;
+	GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT;
+}
+
+static inline void tosakbd_activate_all(void)
+{
+	/* STROBE ALL -> High */
+	GPSR1  = TOSA_GPIO_HIGH_STROBE_BIT;
+	GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT;
+	GPSR2  = TOSA_GPIO_LOW_STROBE_BIT;
+	GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT;
+
+	udelay(KB_DISCHARGE_DELAY);
+
+	/* STATE CLEAR */
+	GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT; 
+}
+
+static inline void tosakbd_activate_col(int col)
+{
+	if (col<=5) {
+		/* STROBE col -> High, not col -> HiZ */
+		GPSR1 = TOSA_GPIO_STROBE_BIT(col);
+	 	GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
+	} else {
+		/* STROBE col -> High, not col -> HiZ */
+		GPSR2 = TOSA_GPIO_STROBE_BIT(col);
+		GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
+	} 
+}
+
+static inline void tosakbd_reset_col(int col)
+{
+	if (col<=5) {
+		/* STROBE col -> Low */
+		GPCR1 = TOSA_GPIO_STROBE_BIT(col);
+		/* STROBE col -> out, not col -> HiZ */
+		GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
+	} else {
+		/* STROBE col -> Low */
+		GPCR2 = TOSA_GPIO_STROBE_BIT(col);
+		/* STROBE col -> out, not col -> HiZ */
+		GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
+	} 
+}
+
+/*
+ * Read the GPIOs for POWER, RECORD and SYNC
+ */
+static int read_port_key_status_raw(void)
+{
+	int val=0;
+
+	/* Power key */
+	if ((GPLR0 & GPIO_bit(TOSA_GPIO_ON_KEY))==0)
+		val |= KEYMASK_ON;
+	/* Record key */
+	if ((GPLR0 & GPIO_bit(TOSA_GPIO_RECORD_BTN))==0)
+		val |= KEYMASK_REC;
+	/* Sync key */
+	if ((GPLR0 & GPIO_bit(TOSA_GPIO_SYNC))==0)
+		val |= KEYMASK_SYNC;
+	return val;
+}
+
+
+/*
+ * The tosa keyboard only generates interrupts when a key is pressed.
+ * So when a key is pressed, we enable a timer.  This timer scans the
+ * keyboard, and this is how we detect when the key is released.
+ */
+
+/* Scan the hardware keyboard and push any changes up through the input layer */
+static void tosakbd_scankeyboard(struct tosakbd *tosakbd_data) 
+{
+	unsigned int row, col, rowd;
+	unsigned long flags;
+	unsigned int num_pressed = 0;
+
+	if (tosakbd_data->suspended)
+		return;
+
+	spin_lock_irqsave(&tosakbd_data->lock, flags);
+
+	for (col = 0; col < KB_COLS; col++) {
+		/*
+		 * Discharge the output driver capacitatance
+		 * in the keyboard matrix. (Yes it is significant..)
+		 */
+		tosakbd_discharge_all();
+		udelay(KB_DISCHARGE_DELAY);
+
+		tosakbd_activate_col( col);
+		udelay(KB_ACTIVATE_DELAY);
+		
+		rowd = GET_ROWS_STATUS(col);
+
+		for (row = 0; row < KB_ROWS; row++) {
+			unsigned int scancode, pressed;
+			scancode = SCANCODE(row, col);
+			pressed = rowd & KB_ROWMASK(row);
+			input_report_key(tosakbd_data->input, tosakbd_data->keycode[scancode], pressed);
+			if (pressed)
+				num_pressed++;
+		}
+
+		tosakbd_reset_col(col);
+	}
+
+	tosakbd_activate_all();
+
+	rowd = read_port_key_status_raw();
+
+	for (row = 0; row < 3; row++ ) {
+		unsigned int scancode, pressed;
+		scancode = SCANCODE(row, KB_COLS);
+		pressed = rowd & KB_ROWMASK(row);
+		input_report_key(tosakbd_data->input, tosakbd_data->keycode[scancode], pressed);
+		if (pressed)
+			num_pressed++;
+
+		if (pressed && (tosakbd_data->keycode[scancode] == TOSA_KEY_OFF)
+								&& time_after(jiffies, tosakbd_data->suspend_jiffies + msecs_to_jiffies(1000))) {
+			input_event(tosakbd_data->input, EV_PWR, TOSA_KEY_OFF, 1);
+			tosakbd_data->suspend_jiffies = jiffies;
+		}
+	}
+	
+	input_sync(tosakbd_data->input);
+
+	/* if any keys are pressed, enable the timer */
+	if (num_pressed)
+		mod_timer(&tosakbd_data->timer, jiffies + SCAN_INTERVAL);
+
+	spin_unlock_irqrestore(&tosakbd_data->lock, flags);
+}
+
+/* 
+ * tosa keyboard interrupt handler.
+ */
+static irqreturn_t tosakbd_interrupt(int irq, void *dev_id)
+{
+	struct tosakbd *tosakbd_data = dev_id;
+
+	if (!timer_pending(&tosakbd_data->timer)) 
+	{
+		/** wait chattering delay **/
+		udelay(20);
+		tosakbd_scankeyboard(tosakbd_data);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * tosa timer checking for released keys
+ */
+static void tosakbd_timer_callback(unsigned long data)
+{
+	struct tosakbd *tosakbd_data = (struct tosakbd *) data;
+	tosakbd_scankeyboard(tosakbd_data);
+}
+
+/*
+ * The headphone generates an interrupt.
+ * We debounce the switche and pass them to the input system.
+ */
+
+static irqreturn_t tosakbd_hp_isr(int irq, void *dev_id)
+{
+	struct tosakbd *tosakbd_data = dev_id;
+
+	if (!timer_pending(&tosakbd_data->hptimer))
+		mod_timer(&tosakbd_data->hptimer, jiffies + msecs_to_jiffies(HP_SCAN_INTERVAL));
+
+	return IRQ_HANDLED;
+}
+
+static void tosakbd_hp_timer(unsigned long data)
+{
+	struct tosakbd *tosakbd_data = (struct tosakbd *) data;
+	unsigned long state;
+	unsigned long flags;
+
+	state = (GPLR(TOSA_GPIO_EAR_IN) & GPIO_bit(TOSA_GPIO_EAR_IN));
+	if (state != tosakbd_data->hp_state) {
+		tosakbd_data->hp_count = 0;
+		tosakbd_data->hp_state = state;
+	} else if (tosakbd_data->hp_count < HP_STABLE_COUNT) {
+		tosakbd_data->hp_count++;
+	}
+
+	if (tosakbd_data->hp_count >= HP_STABLE_COUNT) {
+		spin_lock_irqsave(&tosakbd_data->lock, flags);
+
+		input_report_switch(tosakbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(TOSA_GPIO_EAR_IN) & GPIO_bit(TOSA_GPIO_EAR_IN)) == 0));
+		input_sync(tosakbd_data->input);
+
+		spin_unlock_irqrestore(&tosakbd_data->lock, flags);
+	} else {
+		mod_timer(&tosakbd_data->hptimer, jiffies + msecs_to_jiffies(HP_SCAN_INTERVAL));
+	}
+}
+
+#ifdef CONFIG_PM
+static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct tosakbd *tosakbd = platform_get_drvdata(dev);
+
+	tosakbd->suspended = 1;
+
+	return 0;
+}
+
+static int tosakbd_resume(struct platform_device *dev)
+{
+	struct tosakbd *tosakbd = platform_get_drvdata(dev);
+
+	/* Upon resume, ignore the suspend key for a short while */
+	tosakbd->suspend_jiffies = jiffies;
+	tosakbd->suspended = 0;
+
+	return 0;
+}
+#else
+#define tosakbd_suspend		NULL
+#define tosakbd_resume		NULL
+#endif
+
+static int __init tosakbd_probe(struct platform_device *pdev) {
+
+	int i;
+	struct tosakbd *tosakbd;
+	struct input_dev *input_dev;
+
+	tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL);
+	if (!tosakbd)
+		return -ENOMEM;
+
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		kfree(tosakbd);
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev,tosakbd);
+
+	spin_lock_init(&tosakbd->lock);
+
+	/* Init Keyboard rescan timer */
+	init_timer(&tosakbd->timer);
+	tosakbd->timer.function = tosakbd_timer_callback;
+	tosakbd->timer.data = (unsigned long) tosakbd;
+
+	/* Init Headphone Timer */
+	init_timer(&tosakbd->hptimer);
+	tosakbd->hptimer.function = tosakbd_hp_timer;
+	tosakbd->hptimer.data = (unsigned long) tosakbd;
+
+	tosakbd->suspend_jiffies = jiffies;
+
+	tosakbd->input = input_dev;
+
+	input_dev->private = tosakbd;
+	input_dev->name = "Tosa Keyboard";
+	input_dev->phys = "tosakbd/input0";
+	input_dev->cdev.dev = &pdev->dev;
+
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->id.vendor = 0x0001;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+
+	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_PWR) | BIT(EV_SW);
+	input_dev->keycode = tosakbd->keycode;
+	input_dev->keycodesize = sizeof(unsigned char);
+	input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode);
+
+	memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd->keycode));
+	for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++)
+		set_bit(tosakbd->keycode[i], input_dev->keybit);
+	clear_bit(0, input_dev->keybit);
+	set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
+
+	input_register_device(tosakbd->input);
+
+	/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
+	for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) {
+		pxa_gpio_mode( TOSA_GPIO_KEY_SENSE(i) | GPIO_IN);	
+		if (request_irq(TOSA_IRQ_GPIO_KEY_SENSE(i), tosakbd_interrupt,
+						IRQF_DISABLED | IRQF_TRIGGER_RISING, "tosakbd", tosakbd)) {
+			printk("tosakbd: Can't get IRQ: %d !\n", i);
+		}
+	}
+	
+	/* Set Strobe lines as outputs - set high */
+	for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) {
+		pxa_gpio_mode( TOSA_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);	
+	}
+
+	// Power&Rec Button
+	pxa_gpio_mode( TOSA_GPIO_ON_KEY | GPIO_IN);	
+	pxa_gpio_mode( TOSA_GPIO_RECORD_BTN | GPIO_IN);	
+	pxa_gpio_mode( TOSA_GPIO_SYNC | GPIO_IN);
+	pxa_gpio_mode( TOSA_GPIO_EAR_IN | GPIO_IN);
+
+	if (request_irq(TOSA_IRQ_GPIO_ON_KEY, tosakbd_interrupt, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "On key", tosakbd) ||
+	    request_irq(TOSA_IRQ_GPIO_RECORD_BTN, tosakbd_interrupt, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Record key", tosakbd) ||
+	    request_irq(TOSA_IRQ_GPIO_SYNC, tosakbd_interrupt, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Sync key", tosakbd) ||
+	    request_irq(TOSA_IRQ_GPIO_EAR_IN, tosakbd_hp_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "HP in", tosakbd)) {
+		printk("Could not allocate KEYBD IRQ!\n");
+	}
+
+	printk(KERN_INFO "input: Tosa Keyboard Registered\n");
+
+	return 0;
+}
+
+static int tosakbd_remove(struct platform_device *dev) {
+	
+	int i;
+	struct tosakbd *tosakbd = platform_get_drvdata(dev);
+	
+	for (i = 0; i < TOSA_KEY_SENSE_NUM; i++)
+		free_irq(TOSA_IRQ_GPIO_KEY_SENSE(i),tosakbd); 
+	
+	free_irq(TOSA_IRQ_GPIO_ON_KEY,tosakbd); 
+	free_irq(TOSA_IRQ_GPIO_RECORD_BTN,tosakbd); 
+	free_irq(TOSA_IRQ_GPIO_SYNC,tosakbd); 
+
+	del_timer_sync(&tosakbd->timer);
+
+	input_unregister_device(tosakbd->input);
+	
+	kfree(tosakbd);
+	
+	return 0;
+}
+
+static struct platform_driver tosakbd_driver = {
+	.probe		= tosakbd_probe,
+	.remove		= tosakbd_remove,
+	.suspend	= tosakbd_suspend,
+	.resume		= tosakbd_resume,
+	.driver		= {
+		.name	= "tosa-keyboard",
+	},
+};
+
+static int __devinit tosakbd_init(void)
+{
+	return platform_driver_register(&tosakbd_driver);
+}
+
+static void __exit tosakbd_exit(void)
+{
+ 	platform_driver_unregister(&tosakbd_driver);
+}
+
+module_init(tosakbd_init);
+module_exit(tosakbd_exit);
+
+MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
+MODULE_DESCRIPTION("Tosa Keyboard Driver");
+MODULE_LICENSE("GPLv2");