add via modify part source code for wm8880 4.4 kitkat

3 files changed, 329 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/input/physics_key/Kconfig b/ANDROID_3.4.5/drivers/input/physics_key/Kconfig
new file mode 100755
index 00000000..98178500
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/input/physics_key/Kconfig
@@ -0,0 +1,27 @@
+#
+# Input core configuration
+#
+config INPUT_PKEY
+	bool "physics_key" if EMBEDDED || !X86
+	default y
+	depends on INPUT
+	help
+	  Say Y here, and a list of supported remote control devices will 
+	  be displayed. This option doesn't affect the kernel.
+
+	  If unsure, say y.
+
+config PKEY_WonderMedia
+	tristate "WonderMedia physics_key support" if !PC
+	default y
+	depends on INPUT && INPUT_PKEY
+	help
+	  Say Y here if you want remote control support for WonderMedia.
+
+	  If unsure, say Y.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wmt-pkey.
+
+
+
diff --git a/ANDROID_3.4.5/drivers/input/physics_key/Makefile b/ANDROID_3.4.5/drivers/input/physics_key/Makefile
new file mode 100755
index 00000000..f6c7a3f7
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/input/physics_key/Makefile
@@ -0,0 +1,41 @@
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+KERNELDIR=../../../
+#KERNELDIR=/home/hangyan/android8850/kernel/ANDROID_3.0.8
+CROSS = arm_1103_le-
+CC=		$(CROSS)gcc
+LD=		$(CROSS)ld
+STRIP = $(CROSS)strip
+
+DEBUG = n 
+
+# Add your debugging flag (or not) to EXTRA_CFLAGS
+ifeq ($(DEBUG),y)
+#  DEBFLAGS = -O -g -DSCULL_DEBUG # "-O" is needed to expand inlines
+DEBFLAGS = -O0 -g -DSCULL_DEBUG # "-O" is needed to expand inlines
+
+else
+  DEBFLAGS = -O2 -Wall
+endif
+
+EXTRA_CFLAGS += $(DEBFLAGS)
+
+
+MY_MODULE_NAME=wmt-pkey
+
+$(MY_MODULE_NAME)-objs  := pkey.o
+obj-m	:= $(MY_MODULE_NAME).o
+
+
+default:
+	$(MAKE) -C $(KERNELDIR) SUBDIRS=$(PWD) modules
+	$(STRIP) --strip-debug $(MY_MODULE_NAME).ko
+	rm -rf *.o *~ core .depend .*.cmd *.mod.c .tmp_versions
+
+clean:
+	rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions *.order *.symvers
+
diff --git a/ANDROID_3.4.5/drivers/input/physics_key/pkey.c b/ANDROID_3.4.5/drivers/input/physics_key/pkey.c
new file mode 100755
index 00000000..429b57f3
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/input/physics_key/pkey.c
@@ -0,0 +1,261 @@
+/*++ 

+ * 

+ * WonderMedia input remote control driver
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+  
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/version.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <mach/wmt_pmc.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+
+

+#include <linux/delay.h>

+#include <mach/wmt_iomux.h>
+#include <linux/irq.h>

+

+

+static struct pkey_pdata {

+	unsigned int gpio_no;

+	

+	struct input_dev *idev;	

+	struct timer_list *p_key_timer;
+	unsigned long timer_expires;

+};

+

+static int key_codes[2]={KEY_F1,KEY_BACK};

+

+static inline void physics_key_timeout(unsigned long fcontext)

+{

+	struct pkey_pdata *p_key = (struct pkey_pdata *)fcontext;

+	int keycode;

+	

+	keycode = __gpio_get_value(p_key->gpio_no)?key_codes[1]:key_codes[0];

+

+	input_report_key(p_key->idev, keycode, 1); 

+	input_sync(p_key->idev);

+	mdelay(50);

+	input_report_key(p_key->idev, keycode, 0); 

+	input_sync(p_key->idev);

+

+	p_key->timer_expires = 0;

+}

+

+static irqreturn_t physics_key_isr(int irq, void *dev_id)

+{

+	unsigned long expires;

+	struct pkey_pdata *p_key = (struct pkey_pdata *)dev_id;

+	

+	if(gpio_irqstatus(p_key->gpio_no))

+	{

+		

+		wmt_gpio_ack_irq(p_key->gpio_no);

+		expires = jiffies + msecs_to_jiffies(50);

+		if (!expires)

+			expires = 1;

+		

+		if(!(p_key->timer_expires) || time_after(expires, p_key->timer_expires)){

+			mod_timer(p_key->p_key_timer, expires);

+			p_key->timer_expires = expires;

+		}

+

+		return IRQ_HANDLED;

+	}

+

+	return IRQ_NONE;

+}

+

+static int hw_init(struct platform_device *pdev)

+{

+	struct pkey_pdata *p_key = pdev->dev.platform_data;

+

+	

+	int ret = gpio_request(p_key->gpio_no,"physics_key");

+	if(ret < 0) {

+		printk(KERN_ERR"gpio request fail for physics_key\n");

+		return ret;
+	}

+

+	gpio_direction_input(p_key->gpio_no);

+	wmt_gpio_set_irq_type(p_key->gpio_no,IRQ_TYPE_EDGE_BOTH);

+	wmt_gpio_unmask_irq(p_key->gpio_no);

+

+	request_irq(IRQ_GPIO, physics_key_isr, IRQF_SHARED, "physics_key", p_key);

+

+	return 0;

+}

+

+static int physics_key_probe(struct platform_device *pdev)

+{

+	int i;

+	struct pkey_pdata *p_key = pdev->dev.platform_data;

+

+	hw_init(pdev);

+

+	if ((p_key->idev = input_allocate_device()) == NULL)

+		return -ENOMEM;
+
+	set_bit(EV_KEY, p_key->idev->evbit);

+	for (i = 0; i < ARRAY_SIZE(key_codes); i++) {

+		set_bit(key_codes[i], p_key->idev->keybit);

+	}

+

+	p_key->idev->name = "physics_key";

+	p_key->idev->phys = "physics_key";

+	input_register_device(p_key->idev);

+	

+	p_key->p_key_timer = (struct timer_list *)kzalloc(sizeof(struct timer_list), GFP_KERNEL);

+	init_timer(p_key->p_key_timer);

+	p_key->p_key_timer->data = (unsigned long)p_key;

+	p_key->p_key_timer->function = physics_key_timeout;

+

+	

+	return 0;

+}

+

+static int physics_key_remove(struct platform_device *dev)

+{

+	struct pkey_pdata *p_key = dev->dev.platform_data;

+

+	if(p_key->p_key_timer)

+	{

+		del_timer_sync(p_key->p_key_timer);

+		free_irq(IRQ_GPIO, p_key);

+		input_unregister_device(p_key->idev);

+		input_free_device(p_key->idev);

+
+		kfree(p_key);


+	}

+

+	return 0;

+}

+

+void pkey_pdevice_release(struct device *dev)

+{

+	

+}

+

+#ifdef CONFIG_PM

+static int physics_key_suspend(struct platform_device *dev, pm_message_t state)

+{

+	struct pkey_pdata *p_key = dev->dev.platform_data;

+

+	del_timer_sync(p_key->p_key_timer);

+

+	wmt_gpio_mask_irq(p_key->gpio_no);

+	

+	return 0;

+}

+

+static int physics_key_resume(struct platform_device *dev)

+{

+	struct pkey_pdata *p_key = dev->dev.platform_data;

+

+	wmt_gpio_set_irq_type(p_key->gpio_no,IRQ_TYPE_EDGE_BOTH);

+	wmt_gpio_unmask_irq(p_key->gpio_no);

+	

+	return 0;

+}

+#else

+#define physics_key_suspend NULL

+#define physics_key_resume NULL

+#endif

+

+

+

+

+static struct platform_device pkey_pdevice = {

+	.name           = "physics_key",

+	.id             = 0,

+	.dev            = {

+    	.release = pkey_pdevice_release,

+	},

+};

+

+static struct platform_driver pkey_driver = {

+	.probe = physics_key_probe,

+	.remove = physics_key_remove,

+	.suspend = physics_key_suspend,

+	.resume = physics_key_resume,

+	

+	.driver = {

+		   .name = "physics_key",

+		   },

+};

+

+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);

+

+static int __init physics_key_init(void)

+{

+	char buf[128];

+	int ret = 0;
+	int varlen;

+	int ubootvar[1];

+
+	
+	memset(buf ,0, sizeof(buf));
+	varlen = sizeof(buf);
+	if (wmt_getsyspara("wmt.gpo.physics_switch", buf, &varlen)) {

+		printk(KERN_ERR"wmt.gpo.physics_switch isn't set in u-boot env! -> Use default\n");
+		return -1;

+	}

+	ret = sscanf(buf, "%d",

+					   &ubootvar[0]

+				       );
+
+	struct pkey_pdata *p_key = (struct pkey_pdata *)kzalloc(sizeof(struct pkey_pdata), GFP_KERNEL);

+	if (p_key == NULL)
+		return -ENOMEM;
+	
+	p_key->gpio_no = ubootvar[0];

+	

+	pkey_pdevice.dev.platform_data = (void *)p_key;

+	

+	if (platform_device_register(&pkey_pdevice))

+		return -1;

+	

+	ret = platform_driver_register(&pkey_driver);

+

+	return ret;

+}

+

+static void __exit physics_key_exit(void)

+{

+	platform_driver_unregister(&pkey_driver);

+	platform_device_unregister(&pkey_pdevice);

+}

+

+module_init(physics_key_init);

+module_exit(physics_key_exit);

+

+MODULE_LICENSE("GPL");

+MODULE_AUTHOR("WonderMedia Technologies, Inc.");

+MODULE_DESCRIPTION("WMT  driver");

+