summaryrefslogtreecommitdiff
path: root/recipes/linux/linux-rp-2.6.23/sharpsl-rc-r1.patch
blob: 08f1f2e721de128731e326a923a14947d9c8c1b2 (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
515
516
517
518
519
Index: linux-2.6.23/arch/arm/mach-pxa/spitz.c
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/spitz.c
+++ linux-2.6.23/arch/arm/mach-pxa/spitz.c
@@ -245,6 +245,13 @@ static struct platform_device spitzkbd_d
 	.id		= -1,
 };
 
+/*
+ * Spitz Remote Control Device
+ */
+static struct platform_device sharpsl_rc_device = {
+	.name		= "sharpsl-remote-control",
+	.id		= -1,
+};
 
 /*
  * Spitz LEDs
@@ -477,6 +484,7 @@ static struct platform_device *devices[]
 	&spitzscoop_device,
 	&spitzssp_device,
 	&spitzkbd_device,
+	&sharpsl_rc_device,
 	&spitzts_device,
 	&spitzbl_device,
 	&spitzled_device,
Index: linux-2.6.23/drivers/input/keyboard/Kconfig
===================================================================
--- linux-2.6.23.orig/drivers/input/keyboard/Kconfig
+++ linux-2.6.23/drivers/input/keyboard/Kconfig
@@ -154,6 +154,17 @@ config KEYBOARD_SPITZ
 	  To compile this driver as a module, choose M here: the
 	  module will be called spitzkbd.
 
+config SHARPSL_RC
+	tristate "Sharp SL-Cxx00 Remote Control"
+	depends on PXA_SHARPSL
+	default y
+	help
+	  Say Y here to enable the remote on the Sharp Zaurus SL-Cxx00,
+	  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 sharpsl_rc.
+
 config KEYBOARD_AMIGA
 	tristate "Amiga keyboard"
 	depends on AMIGA
Index: linux-2.6.23/drivers/input/keyboard/Makefile
===================================================================
--- linux-2.6.23.orig/drivers/input/keyboard/Makefile
+++ linux-2.6.23/drivers/input/keyboard/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_KEYBOARD_NEWTON)		+= newton
 obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
 obj-$(CONFIG_KEYBOARD_CORGI)		+= corgikbd.o
 obj-$(CONFIG_KEYBOARD_SPITZ)		+= spitzkbd.o
+obj-$(CONFIG_SHARPSL_RC)			+= sharpsl_rc.o
 obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)		+= hilkbd.o
 obj-$(CONFIG_KEYBOARD_OMAP)		+= omap-keypad.o
Index: linux-2.6.23/drivers/input/keyboard/sharpsl_rc.c
===================================================================
--- /dev/null
+++ linux-2.6.23/drivers/input/keyboard/sharpsl_rc.c
@@ -0,0 +1,291 @@
+/*
+ *  Keyboard driver for Sharp Clamshell Models (SL-Cxx00)
+ *
+ *  Copyright (c) 2004-2005 Richard Purdie
+ *
+ *  Based on corgikbd.c and Sharp's RC driver
+ *
+ *  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.
+ *
+ */
+
+#define DEBUG 1
+#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>
+
+#ifdef CONFIG_MACH_SPITZ
+#include <asm/arch/spitz.h>
+#endif
+#ifdef CONFIG_MACH_CORGI
+#include <asm/arch/corgi.h>
+#endif
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/hardware/scoop.h>
+#include <asm/arch/sharpsl.h>
+#include <asm/hardware/sharpsl_pm.h>
+
+#define DPRINTK(fmt, args...) dev_dbg(data->dev, fmt "\n", ##args)
+
+struct remote_control_key {
+	unsigned char min;
+	unsigned char max;
+	unsigned char key;
+};
+
+#ifdef CONFIG_MACH_SPITZ
+#define REMOTE_AKIN_PULLUP SPITZ_SCP2_AKIN_PULLUP
+#define REMOTE_SCOOP_DEVICE spitzscoop2_device
+#define REMOTE_GPIO_INT SPITZ_GPIO_AK_INT
+#define REMOTE_IRQ_INT SPITZ_IRQ_GPIO_AK_INT
+static struct remote_control_key remote_keys[] = {
+	{ 25, 35, KEY_STOPCD},
+	{ 55, 65, KEY_PLAYPAUSE},
+	{ 85, 95, KEY_NEXTSONG},
+	{ 115, 125, KEY_VOLUMEUP},
+	{ 145, 155, KEY_PREVIOUSSONG},
+	{ 180, 190, KEY_MUTE},
+	{ 215, 225, KEY_VOLUMEDOWN},
+};
+#endif
+#ifdef CONFIG_MACH_CORGI
+#define REMOTE_AKIN_PULLUP CORGI_SCP_AKIN_PULLUP
+#define REMOTE_SCOOP_DEVICE corgiscoop_device
+#define REMOTE_GPIO_INT CORGI_GPIO_AK_INT
+#define REMOTE_IRQ_INT CORGI_IRQ_GPIO_AK_INT
+static struct remote_control_key remote_keys[] = {
+    //These need to be fixed for the CE-RH1's values
+	{ 25, 35, KEY_STOPCD},
+	{ 55, 65, KEY_PLAYPAUSE},
+	{ 85, 95, KEY_NEXTSONG},
+	{ 115, 125, KEY_VOLUMEUP},
+	{ 145, 155, KEY_PREVIOUSSONG},
+	{ 180, 190, KEY_MUTE},
+	{ 215, 225, KEY_VOLUMEDOWN},
+};
+#endif
+
+#define RELEASE_HI      230
+#define MAX_EARPHONE    6
+#define RC_POLL_MS      10
+#define RC_FINISH_MS    500
+#define WAIT_STATE      3
+#define NOISE_THRESHOLD 100
+
+struct sharpsl_rc {
+	struct input_dev *input;
+	struct device *dev;
+
+	spinlock_t lock;
+	struct timer_list rctimer;
+	struct timer_list rctimer_finish;
+
+	unsigned int handling_press;
+	unsigned int noise;
+	unsigned int state;
+	unsigned int last_key;
+};
+
+static int get_remocon_raw(void)
+{
+	int i, val;
+
+	val = sharpsl_pm_pxa_read_max1111(MAX1111_REMCOM);
+	for (i = 0; i < ARRAY_SIZE(remote_keys); ++i) {
+		if (val >= remote_keys[i].min
+			&& val <= remote_keys[i].max) {
+			printk("get_remocon_raw: VAL=%i, KEY=%i\n", val, remote_keys[i].key);
+			return remote_keys[i].key;
+		}
+	}
+	return 0;
+}
+
+static irqreturn_t sharpsl_rc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct sharpsl_rc *data = dev_id;
+	DPRINTK("sharpsl_rc_interrupt %d\n", irq);
+	if (!data->handling_press) {
+		DPRINTK("handling interrupt");
+		data->handling_press = 1;
+		data->noise = 0;
+		data->state = 0;
+		data->last_key = 0;
+
+		reset_scoop_gpio(&REMOTE_SCOOP_DEVICE.dev, REMOTE_AKIN_PULLUP);
+
+		mod_timer(&data->rctimer, jiffies + msecs_to_jiffies(RC_POLL_MS));
+	}
+	return IRQ_HANDLED;
+}
+
+static void sharpsl_rc_timer_callback(unsigned long dataPtr)
+{
+	struct sharpsl_rc *data = (struct sharpsl_rc *) dataPtr;
+	int timer = 1;
+	int key = get_remocon_raw();
+	DPRINTK("timer callback, key: %d", key);
+
+	//wait for value to stabilize
+	if (data->state < WAIT_STATE) {
+		if (data->last_key != key) {
+			++data->noise;
+			if (data->noise > NOISE_THRESHOLD) {
+				DPRINTK("too much noise, bailing");
+				timer = 0;
+			}
+			data->state = 0;
+		} else {
+			++data->state;
+		}
+		data->last_key = key;
+
+	//stable value, send event
+	} else if (data->state == WAIT_STATE) {
+		data->noise = 0;
+		//non-key returned, skip the rest of the states and bail now
+		if (data->last_key == 0) {
+			DPRINTK("non-key detected %d, noise: %d", data->last_key, data->noise);
+			timer = 0;
+		//send button press
+		} else {
+			DPRINTK("key press detected %d, noise %d", data->last_key, data->noise);
+			input_report_key(data->input, data->last_key, 1);
+		}
+		++data->state;
+
+	//wait until key is released
+	} else if (data->state < WAIT_STATE * 2) {
+		if (key == data->last_key
+			&& data->noise < NOISE_THRESHOLD) {
+			data->state = WAIT_STATE + 1;
+			++data->noise;
+		} else {
+			++data->state;
+		}
+	//key is released, send event
+	} else {
+		//send button release
+		DPRINTK("release key %d", data->last_key);
+		input_report_key(data->input, data->last_key, 0);
+		timer = 0;
+	}
+	if (timer) {
+		mod_timer(&data->rctimer, jiffies + msecs_to_jiffies(RC_POLL_MS));
+	} else {
+		set_scoop_gpio(&REMOTE_SCOOP_DEVICE.dev, REMOTE_AKIN_PULLUP);
+		data->handling_press = 0;
+	}
+}
+
+static int __init sharpsl_rc_probe(struct platform_device *pdev)
+{
+	struct sharpsl_rc *sharpsl_rc;
+	struct input_dev *input_dev;
+	int i, ret;
+
+	dev_dbg(&pdev->dev, "sharpsl_rc_probe\n");
+
+	sharpsl_rc = kzalloc(sizeof(struct sharpsl_rc), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!sharpsl_rc || !input_dev) {
+		kfree(sharpsl_rc);
+		input_free_device(input_dev);
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, sharpsl_rc);
+
+	sharpsl_rc->dev = &pdev->dev;
+	sharpsl_rc->input = input_dev;
+	spin_lock_init(&sharpsl_rc->lock);
+
+	/* Init Remote Control Timer */
+	init_timer(&sharpsl_rc->rctimer);
+	sharpsl_rc->rctimer.function = sharpsl_rc_timer_callback;
+	sharpsl_rc->rctimer.data = (unsigned long) sharpsl_rc;
+
+	input_dev->name = "Sharp Remote Control CE-RHX";
+	input_dev->phys = "sharpsl_rc/input0";
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->id.vendor = 0x0001;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->cdev.dev = &pdev->dev;
+	input_dev->private = sharpsl_rc;
+
+	input_dev->evbit[0] = BIT(EV_KEY);
+
+	for (i = 0; i <= ARRAY_SIZE(remote_keys); i++)
+	  set_bit(remote_keys[i].key, input_dev->keybit);
+
+	input_register_device(sharpsl_rc->input);
+
+	pxa_gpio_mode(REMOTE_GPIO_INT | GPIO_IN);
+	ret = request_irq(REMOTE_IRQ_INT,
+					  sharpsl_rc_interrupt,
+					  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_SHARED,
+					  "sharpsl_rc",
+					  sharpsl_rc);
+	if (ret < 0) {
+		dev_dbg(&pdev->dev, "Can't get IRQ: %d!\n", i);
+		kfree(sharpsl_rc);
+		input_free_device(input_dev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int sharpsl_rc_remove(struct platform_device *pdev)
+{
+	struct sharpsl_rc *sharpsl_rc = platform_get_drvdata(pdev);
+
+	dev_dbg(&pdev->dev, "sharpsl_rc_remove\n");
+
+	free_irq(REMOTE_IRQ_INT, sharpsl_rc);
+	del_timer_sync(&sharpsl_rc->rctimer);
+	input_unregister_device(sharpsl_rc->input);
+	kfree(sharpsl_rc);
+
+	return 0;
+}
+
+static struct platform_driver sharpsl_rc_driver = {
+	.probe		= sharpsl_rc_probe,
+	.remove		= sharpsl_rc_remove,
+	.suspend	= NULL,
+	.resume		= NULL,
+	.driver		= {
+		.name	= "sharpsl-remote-control",
+	},
+};
+
+static int __devinit sharpsl_rc_init(void)
+{
+	printk("sharpsl_rc_init\n");
+	return platform_driver_register(&sharpsl_rc_driver);
+}
+
+static void __exit sharpsl_rc_exit(void)
+{
+	printk("sharpsl_rc_exit\n");
+	platform_driver_unregister(&sharpsl_rc_driver);
+}
+
+module_init(sharpsl_rc_init);
+module_exit(sharpsl_rc_exit);
+
+MODULE_AUTHOR("Justin Patrin <papercrane@reversefold.com>");
+MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
+MODULE_DESCRIPTION("SharpSL Remote Control Driver");
+MODULE_LICENSE("GPL");
Index: linux-2.6.23/drivers/input/keyboard/spitzkbd.c
===================================================================
--- linux-2.6.23.orig/drivers/input/keyboard/spitzkbd.c
+++ linux-2.6.23/drivers/input/keyboard/spitzkbd.c
@@ -19,6 +19,7 @@
 #include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/kmod.h>
 
 #include <asm/arch/spitz.h>
 #include <asm/arch/hardware.h>
@@ -279,13 +280,21 @@ static irqreturn_t spitzkbd_hinge_isr(in
 static int sharpsl_hinge_state;
 static int hinge_count;
 
+void spitzkbd_handle_sharpsl_rc(void *arg) {
+	request_module("sharpsl_rc");
+}
+
+DECLARE_WORK(spitzkbd_work, spitzkbd_handle_sharpsl_rc);
+
 static void spitzkbd_hinge_timer(unsigned long data)
 {
 	struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
 	unsigned long state;
 	unsigned long flags;
+	unsigned int headphone, remote;
 
 	state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB));
+	state |= (GPLR(SPITZ_GPIO_HP_IN) & GPIO_bit(SPITZ_GPIO_HP_IN));
 	state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT));
 	if (state != sharpsl_hinge_state) {
 		hinge_count = 0;
@@ -299,9 +308,18 @@ static void spitzkbd_hinge_timer(unsigne
 
 		input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0));
 		input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0));
-		input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0));
+
+		headphone = ((GPLR(SPITZ_GPIO_HP_IN) & GPIO_bit(SPITZ_GPIO_HP_IN)) != 0);
+		input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, headphone);
+
+		remote = headphone && ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) == 0);
+		input_report_switch(spitzkbd_data->input, SW_REMOTE_INSERT, remote);
 		input_sync(spitzkbd_data->input);
 
+		if (remote) {
+			schedule_work(&spitzkbd_work);
+		}
+
 		spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
 	} else {
 		mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
@@ -393,6 +411,7 @@ static int __init spitzkbd_probe(struct 
 	set_bit(SW_LID, input_dev->swbit);
 	set_bit(SW_TABLET_MODE, input_dev->swbit);
 	set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
+	set_bit(SW_REMOTE_INSERT, input_dev->swbit);
 
 	err = input_register_device(input_dev);
 	if (err)
@@ -430,9 +449,12 @@ static int __init spitzkbd_probe(struct 
 	request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr,
 		    IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 		    "Spitzkbd SWB", spitzkbd);
-	request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr,
+	request_irq(SPITZ_IRQ_GPIO_HP_IN, spitzkbd_hinge_isr,
 		    IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 		    "Spitzkbd HP", spitzkbd);
+  	request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr,
+ 		    IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_SHARED,
+            "Spitzkbd HP Type", spitzkbd);
 
 	return 0;
 
@@ -453,6 +475,7 @@ static int spitzkbd_remove(struct platfo
 	free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd);
 	free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd);
 	free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd);
+	free_irq(SPITZ_IRQ_GPIO_HP_IN, spitzkbd);
 	free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd);
 
 	del_timer_sync(&spitzkbd->htimer);
Index: linux-2.6.23/arch/arm/mach-pxa/sharpsl.h
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/sharpsl.h
+++ linux-2.6.23/arch/arm/mach-pxa/sharpsl.h
@@ -50,15 +50,10 @@ void spitz_wait_hsync(void);
 
 #define READ_GPIO_BIT(x)    (GPLR(x) & GPIO_bit(x))
 
-/* MAX1111 Channel Definitions */
-#define MAX1111_BATT_VOLT   4u
-#define MAX1111_BATT_TEMP   2u
-#define MAX1111_ACIN_VOLT   6u
-
 extern struct battery_thresh spitz_battery_levels_acin[];
 extern struct battery_thresh spitz_battery_levels_noac[];
 void sharpsl_pm_pxa_init(void);
 void sharpsl_pm_pxa_remove(void);
-int sharpsl_pm_pxa_read_max1111(int channel);
+
 
 
Index: linux-2.6.23/arch/arm/mach-pxa/sharpsl_pm.c
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/sharpsl_pm.c
+++ linux-2.6.23/arch/arm/mach-pxa/sharpsl_pm.c
@@ -135,6 +135,8 @@ int sharpsl_pm_pxa_read_max1111(int chan
 			| MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR);
 }
 
+EXPORT_SYMBOL(sharpsl_pm_pxa_read_max1111);
+
 void sharpsl_pm_pxa_init(void)
 {
 	pxa_gpio_mode(sharpsl_pm.machinfo->gpio_acin | GPIO_IN);
Index: linux-2.6.23/include/asm-arm/hardware/sharpsl_pm.h
===================================================================
--- linux-2.6.23.orig/include/asm-arm/hardware/sharpsl_pm.h
+++ linux-2.6.23/include/asm-arm/hardware/sharpsl_pm.h
@@ -104,3 +104,10 @@ irqreturn_t sharpsl_ac_isr(int irq, void
 irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id);
 irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id);
 
+/* MAX1111 Channel Definitions */
+#define MAX1111_REMCOM      0u
+#define MAX1111_BATT_VOLT   4u
+#define MAX1111_BATT_TEMP   2u
+#define MAX1111_ACIN_VOLT   6u
+
+int sharpsl_pm_pxa_read_max1111(int channel);
Index: linux-2.6.23/include/linux/input.h
===================================================================
--- linux-2.6.23.orig/include/linux/input.h
+++ linux-2.6.23/include/linux/input.h
@@ -621,6 +621,7 @@ struct input_absinfo {
 #define SW_TABLET_MODE		0x01  /* set = tablet mode */
 #define SW_HEADPHONE_INSERT	0x02  /* set = inserted */
 #define SW_RADIO		0x03  /* set = radio enabled */
+#define SW_REMOTE_INSERT	0x04  /* set = remote */
 #define SW_MAX			0x0f
 
 /*
Index: linux-2.6.23/arch/arm/mach-pxa/spitz_pm.c
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/spitz_pm.c
+++ linux-2.6.23/arch/arm/mach-pxa/spitz_pm.c
@@ -162,6 +162,13 @@ static int spitz_should_wakeup(unsigned 
 	if (resume_on_alarm && (PEDR & PWER_RTC))
 		is_resume |= PWER_RTC;
 
+	printk("wakeup: PEDR: %x, PKSR: %x, HP_IN: %x, AK_INT: %x\n", PEDR, PKSR, GPIO_bit(SPITZ_GPIO_HP_IN), GPIO_bit(SPITZ_GPIO_AK_INT));
+
+	//remote/headphone interrupt, wakeup
+	if (PEDR == 0 && (PKSR & 0xc0d01) != 0) {
+		is_resume |= PWER_RTC;
+	}
+
 	dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
 	return is_resume;
 }