aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/s3c24xx/patches-2.6.26/0043-s3c2410-qt2410-buttons.patch.patch
blob: 28886f4a217b1fed6377d9294d9a919c20c2e5e4 (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
From a63a227ece28df06d4c8f04eec51c7649ef28aea Mon Sep 17 00:00:00 2001
From: mokopatches <mokopatches@openmoko.org>
Date: Fri, 25 Jul 2008 22:21:22 +0100
Subject: [PATCH] s3c2410-qt2410-buttons.patch

---
 arch/arm/mach-s3c2410/mach-qt2410.c |   18 +++
 drivers/input/keyboard/Kconfig      |    5 +
 drivers/input/keyboard/Makefile     |    1 +
 drivers/input/keyboard/qt2410kbd.c  |  233 +++++++++++++++++++++++++++++++++++
 4 files changed, 257 insertions(+), 0 deletions(-)
 create mode 100644 drivers/input/keyboard/qt2410kbd.c

diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
index 6f7b56d..daf94cd 100644
--- a/arch/arm/mach-s3c2410/mach-qt2410.c
+++ b/arch/arm/mach-s3c2410/mach-qt2410.c
@@ -321,6 +321,24 @@ static int __init qt2410_tft_setup(char *str)
 
 __setup("tft=", qt2410_tft_setup);
 
+static struct resource qt2410_button_resources[] = {
+	[0] = {
+		.start = S3C2410_GPF0,
+		.end   = S3C2410_GPF0,
+	},
+	[1] = {
+		.start = S3C2410_GPF2,
+		.end   = S3C2410_GPF2,
+	},
+};
+
+struct platform_device qt2410_button_dev = {
+	.name		="qt2410-button",
+	.num_resources	= ARRAY_SIZE(qt2410_button_resources),
+	.resource	= qt2410_button_resources,
+};
+
+
 static void __init qt2410_map_io(void)
 {
 	s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc));
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index b8ecca9..bc7aac3 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -334,5 +334,10 @@ config KEYBOARD_NEO1973
 	  To compile this driver as a module, choose M here: the
 	  module will be called neo1973kbd.
 
+config KEYBOARD_QT2410
+	tristate "QT2410 buttons"
+	depends on MACH_QT2410
+	default y
+
 
 endif
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index b3aa339..63a8972 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_KEYBOARD_NEWTON)		+= newtonkbd.o
 obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
 obj-$(CONFIG_KEYBOARD_CORGI)		+= corgikbd.o
 obj-$(CONFIG_KEYBOARD_NEO1973)		+= neo1973kbd.o
+obj-$(CONFIG_KEYBOARD_QT2410)		+= qt2410kbd.o
 obj-$(CONFIG_KEYBOARD_SPITZ)		+= spitzkbd.o
 obj-$(CONFIG_KEYBOARD_TOSA)		+= tosakbd.o
 obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
diff --git a/drivers/input/keyboard/qt2410kbd.c b/drivers/input/keyboard/qt2410kbd.c
new file mode 100644
index 0000000..4d497a3
--- /dev/null
+++ b/drivers/input/keyboard/qt2410kbd.c
@@ -0,0 +1,233 @@
+/*
+ * Keyboard driver for Armzone QT2410
+ *
+ * (C) 2006 by OpenMoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * All rights reserved.
+ *
+ * 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/hardware.h>
+#include <asm/arch/gta01.h>
+
+struct gta01kbd {
+	struct input_dev *input;
+	unsigned int suspended;
+	unsigned long suspend_jiffies;
+};
+
+static irqreturn_t gta01kbd_interrupt(int irq, void *dev_id)
+{
+	struct gta01kbd *gta01kbd_data = dev_id;
+
+	/* FIXME: use GPIO from platform_dev resources */
+	if (s3c2410_gpio_getpin(S3C2410_GPF0))
+		input_report_key(gta01kbd_data->input, KEY_PHONE, 1);
+	else
+		input_report_key(gta01kbd_data->input, KEY_PHONE, 0);
+
+	input_sync(gta01kbd_data->input);
+
+	return IRQ_HANDLED;
+}
+
+
+#ifdef CONFIG_PM
+static int gta01kbd_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
+
+	gta01kbd->suspended = 1;
+
+	return 0;
+}
+
+static int gta01kbd_resume(struct platform_device *dev)
+{
+	struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
+
+	gta01kbd->suspended = 0;
+
+	return 0;
+}
+#else
+#define gta01kbd_suspend	NULL
+#define gta01kbd_resume		NULL
+#endif
+
+static int gta01kbd_probe(struct platform_device *pdev)
+{
+	struct gta01kbd *gta01kbd;
+	struct input_dev *input_dev;
+	int irq_911;
+	int rc = 0;
+
+	gta01kbd = kzalloc(sizeof(struct gta01kbd), GFP_KERNEL);
+	if (!gta01kbd) {
+		rc = -ENOMEM;
+		goto bail;
+	}
+	input_dev = input_allocate_device();
+	if (!gta01kbd || !input_dev) {
+		rc = -ENOMEM;
+		goto bail_free;
+	}
+
+	if (pdev->resource[0].flags != 0) {\
+		rc = -EINVAL;
+		goto bail_free_dev;
+	}
+
+	irq_911 = s3c2410_gpio_getirq(pdev->resource[0].start);
+	if (irq_911 < 0) {
+		rc = -EINVAL;
+		goto bail_free_dev;
+	}
+
+	platform_set_drvdata(pdev, gta01kbd);
+
+	gta01kbd->input = input_dev;
+
+#if 0
+	spin_lock_init(&gta01kbd->lock);
+	/* Init Keyboard rescan timer */
+	init_timer(&corgikbd->timer);
+	corgikbd->timer.function = corgikbd_timer_callback;
+	corgikbd->timer.data = (unsigned long) corgikbd;
+
+	/* Init Hinge Timer */
+	init_timer(&corgikbd->htimer);
+	corgikbd->htimer.function = corgikbd_hinge_timer;
+	corgikbd->htimer.data = (unsigned long) corgikbd;
+
+	corgikbd->suspend_jiffies=jiffies;
+
+	memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode));
+#endif
+
+	input_dev->name = "QT2410 Buttons";
+	input_dev->phys = "qt2410kbd/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 = gta01kbd;
+
+	input_dev->evbit[0] = BIT(EV_KEY);
+#if 0
+	input_dev->keycode = gta01kbd->keycode;
+	input_dev->keycodesize = sizeof(unsigned char);
+	input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode);
+
+	for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++)
+		set_bit(corgikbd->keycode[i], input_dev->keybit);
+	clear_bit(0, input_dev->keybit);
+	set_bit(SW_LID, input_dev->swbit);
+	set_bit(SW_TABLET_MODE, input_dev->swbit);
+	set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
+#endif
+
+	rc = input_register_device(gta01kbd->input);
+	if (rc)
+		goto bail_free_dev;
+
+	s3c2410_gpio_cfgpin(S3C2410_GPF0, S3C2410_GPF0_EINT0);
+	if (request_irq(irq_911, gta01kbd_interrupt,
+			IRQF_DISABLED | IRQF_TRIGGER_RISING |
+			IRQF_TRIGGER_FALLING, "qt2410kbd_eint0", gta01kbd))
+		printk(KERN_WARNING "gta01kbd: Can't get IRQ\n");
+	enable_irq_wake(irq_911);
+
+	/* FIXME: headphone insert */
+
+#if 0
+	mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
+
+	/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
+	for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) {
+		pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN);
+		if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt,
+				SA_INTERRUPT | SA_TRIGGER_RISING,
+				"corgikbd", corgikbd))
+			printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i);
+	}
+
+	/* Set Strobe lines as outputs - set high */
+	for (i = 0; i < CORGI_KEY_STROBE_NUM; i++)
+		pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
+
+	/* Setup the headphone jack as an input */
+	pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN);
+#endif
+
+	return 0;
+
+bail_free_dev:
+	input_free_device(input_dev);
+bail_free:
+	kfree(gta01kbd);
+bail:
+	return rc;
+}
+
+static int gta01kbd_remove(struct platform_device *pdev)
+{
+	struct gta01kbd *gta01kbd = platform_get_drvdata(pdev);
+
+	free_irq(s3c2410_gpio_getirq(pdev->resource[0].start), gta01kbd);
+#if 0
+	int i;
+
+	for (i = 0; i < CORGI_KEY_SENSE_NUM; i++)
+		free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd);
+
+	del_timer_sync(&corgikbd->htimer);
+	del_timer_sync(&corgikbd->timer);
+#endif
+	input_unregister_device(gta01kbd->input);
+
+	kfree(gta01kbd);
+
+	return 0;
+}
+
+static struct platform_driver gta01kbd_driver = {
+	.probe		= gta01kbd_probe,
+	.remove		= gta01kbd_remove,
+	.suspend	= gta01kbd_suspend,
+	.resume		= gta01kbd_resume,
+	.driver		= {
+		.name	= "qt2410-button",
+	},
+};
+
+static int __devinit gta01kbd_init(void)
+{
+	return platform_driver_register(&gta01kbd_driver);
+}
+
+static void __exit gta01kbd_exit(void)
+{
+	platform_driver_unregister(&gta01kbd_driver);
+}
+
+module_init(gta01kbd_init);
+module_exit(gta01kbd_exit);
+
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
+MODULE_DESCRIPTION("Armzone QT2410 Buttons Driver");
+MODULE_LICENSE("GPL");
-- 
1.5.6.3