CW integration and minnow bringup

  * create minnow machine type
  * create Android makefile
  * add pre-commit syntax check
  * enable -Werror
  * Add drivers: CPCAP, TPS65xxx, m4sensorhub, atmxt, lm3535,
                 usb gadget, minnow display, TI 12xx wireless

Change-Id: I7962f5e1256715f2452aed5a62a4f2f2383d5046

1 files changed, 415 insertions, 0 deletions

diff --git a/drivers/misc/m4sensorhub_gesture.c b/drivers/misc/m4sensorhub_gesture.c
new file mode 100644
index 00000000000..b067be71d24
--- /dev/null
+++ b/drivers/misc/m4sensorhub_gesture.c
@@ -0,0 +1,415 @@
+/*
+ *  Copyright (C) 2012 Motorola, 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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ *  Adds ability to program periodic interrupts from user space that
+ *  can wake the phone out of low power modes.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/input.h>
+#include <linux/m4sensorhub.h>
+#include <linux/m4sensorhub_client_ioctl.h>
+#include <linux/uaccess.h>
+#include <linux/m4sensorhub/MemMapGesture.h>
+#include <linux/slab.h>
+
+#define GESTURE_CLIENT_DRIVER_NAME	"m4sensorhub_gesture"
+
+struct gesture_client {
+	struct m4sensorhub_data *m4sensorhub;
+	struct input_dev *input_dev;
+	struct memMapGesture gesture_data;
+};
+
+static bool read_gesture_value(struct gesture_client *list,
+				signed char *value,
+				eGestureType gesture)
+{
+	if (list->gesture_data.gesture1 == gesture) {
+		*value = list->gesture_data.value1;
+		return true;
+	} else if (list->gesture_data.gesture2 == gesture) {
+		*value = list->gesture_data.value2;
+		return true;
+	} else if (list->gesture_data.gesture3 == gesture) {
+		*value = list->gesture_data.value3;
+		return true;
+	} else {
+		*value = 0;
+		return false;
+	}
+}
+
+static struct gesture_client *misc_gesture_data;
+
+static int gesture_client_open(struct inode *inode, struct file *file)
+{
+	int err = 0;
+
+	err = nonseekable_open(inode, file);
+	if (err < 0) {
+		KDEBUG(M4SH_ERROR, "%s failed\n", __func__);
+		return err;
+	}
+	file->private_data = misc_gesture_data;
+
+	return 0;
+}
+
+static int gesture_client_close(struct inode *inode, struct file *file)
+{
+	KDEBUG(M4SH_DEBUG, "gesture_client in %s\n", __func__);
+	return 0;
+}
+
+static char m4_read_gesture_data(struct gesture_client *gesture_client_data)
+{
+	int ret;
+	struct memMapGesture *gdata = &(gesture_client_data->gesture_data);
+
+	ret = m4sensorhub_reg_read_n(gesture_client_data->m4sensorhub,
+				M4SH_REG_GESTURE_VERSION,
+				(char *)gdata,
+				sizeof(gesture_client_data->gesture_data));
+
+	if (ret != sizeof(gesture_client_data->gesture_data))
+		goto ERR;
+
+	KDEBUG(M4SH_DEBUG, "Gesture1 = %d, gesture2 = %d, gesture3 = %d\n",
+		gdata->gesture1, gdata->gesture2, gdata->gesture3);
+	KDEBUG(M4SH_DEBUG, "Confidence1 = %d, confidence2 = %d, confidence3 = %d\n",
+		gdata->confidence1, gdata->confidence2, gdata->confidence3);
+	KDEBUG(M4SH_DEBUG, "Value1 = %d, value2 = %d, value3 = %d\n",
+		gdata->value1, gdata->value2, gdata->value3);
+	return 0;
+ERR:
+	KDEBUG(M4SH_ERROR, "Gesture read failed\n");
+	return -1;
+}
+
+static void m4_handle_gesture_irq(enum m4sensorhub_irqs int_event,
+					void *gesture_data)
+{
+	signed char value;
+	/*Trigger broadcast of display gesture intent*/
+	struct gesture_client *gesture_client_data =
+		(struct gesture_client *)gesture_data;
+
+	struct memMapGesture *gdata = &(gesture_client_data->gesture_data);
+
+	if (m4_read_gesture_data(gesture_client_data) < 0) {
+		KDEBUG(M4SH_ERROR, "m4_read_gesture_data returned \
+			error %s\n", __func__);
+		return;
+	}
+
+	if (read_gesture_value(gesture_client_data, &value, GESTURE_TILT_SCROLL)) {
+		input_event(gesture_client_data->input_dev, EV_ABS,
+				ABS_TILTSCROLL, value);
+	} else {
+		if (read_gesture_value(gesture_client_data, &value, GESTURE_WRIST_ROTATE)) {
+			/* send event to stop scrolling for wrist rotate */
+			input_event(gesture_client_data->input_dev, EV_ABS,
+					ABS_TILTSCROLL, 0);
+		}
+	}
+
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE1, gdata->gesture1);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE2, gdata->gesture2);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE3, gdata->gesture3);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_CONFIDENCE1, gdata->confidence1);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_CONFIDENCE2, gdata->confidence2);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_CONFIDENCE3, gdata->confidence3);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_VALUE1, gdata->value1);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_VALUE2, gdata->value2);
+	input_event(gesture_client_data->input_dev, EV_MSC,
+			MSC_GESTURE_VALUE3, gdata->value3);
+
+	input_sync(gesture_client_data->input_dev);
+
+}
+
+/*
+ * Handle commands from user-space.
+ */
+static long gesture_client_ioctl(struct file *filp,
+				 unsigned int cmd, unsigned long arg)
+{
+	int ret = 0;
+	void __user *argp = (void __user *)arg;
+	struct gesture_client *gesture_client_data = filp->private_data;
+	unsigned char byte;
+
+	switch (cmd) {
+	case M4_SENSOR_IOCTL_SET_SCREEN_ON_GESTURE_STATUS:
+		/* TODO
+		Turn on/off the gesture feature on M4 */
+		break;
+	case M4_SENSOR_IOCTL_SET_SCREEN_STATUS:
+		if (copy_from_user(&byte, argp, sizeof(byte))) {
+			KDEBUG(M4SH_ERROR, "Copy frm usr err:screen status\n");
+			ret = -EFAULT;
+			break;
+		}
+		/* validate data */
+		if (byte > 1) {
+			KDEBUG(M4SH_DEBUG, "Invalid screen status=0x%x", byte);
+			ret = -EINVAL;
+			break;
+		}
+		KDEBUG(M4SH_DEBUG, "Screen status set to = 0x%x", byte);
+		ret = m4sensorhub_reg_write_1byte(
+			gesture_client_data->m4sensorhub,
+			M4SH_REG_USERSETTINGS_SCREENSTATUS, byte, 0xFF);
+		if (ret != 1)
+			KDEBUG(M4SH_ERROR, "Error writing screen status\n");
+		break;
+	default:
+		KDEBUG(M4SH_ERROR, "Invalid IOCTL Command in %s\n", __func__);
+		 ret = -EINVAL;
+	}
+	return ret;
+}
+
+static ssize_t m4_gesture_status(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct gesture_client *gesture_client_data = platform_get_drvdata(pdev);
+
+	if (m4_read_gesture_data(gesture_client_data) < 0)
+		KDEBUG(M4SH_ERROR, "%s: Read gesture data failed \n", __func__);
+	KDEBUG(M4SH_DEBUG, "%s:Gesture1,2,3 = %d %d %d conf1,2,3 = %d %d %d value1,2,3 = %d %d %d\n",
+		__func__, gesture_client_data->gesture_data.gesture1,
+			gesture_client_data->gesture_data.gesture2,
+			gesture_client_data->gesture_data.gesture3,
+			gesture_client_data->gesture_data.confidence1,
+			gesture_client_data->gesture_data.confidence2,
+			gesture_client_data->gesture_data.confidence3,
+			gesture_client_data->gesture_data.value1,
+			gesture_client_data->gesture_data.value2,
+			gesture_client_data->gesture_data.value3);
+
+	return sprintf(buf, "gesture1,2,3=%d %d %d,confidence1,2,3=%d %d %d value1,2,3 = %d %d %d\n",
+			gesture_client_data->gesture_data.gesture1,
+			gesture_client_data->gesture_data.gesture2,
+			gesture_client_data->gesture_data.gesture3,
+			gesture_client_data->gesture_data.confidence1,
+			gesture_client_data->gesture_data.confidence2,
+			gesture_client_data->gesture_data.confidence3,
+			gesture_client_data->gesture_data.value1,
+			gesture_client_data->gesture_data.value2,
+			gesture_client_data->gesture_data.value3);
+}
+
+static DEVICE_ATTR(gesture_status, 0444, m4_gesture_status, NULL);
+
+static const struct file_operations gesture_client_fops = {
+	.owner = THIS_MODULE,
+	.unlocked_ioctl = gesture_client_ioctl,
+	.open  = gesture_client_open,
+	.release = gesture_client_close,
+};
+
+static struct miscdevice gesture_client_miscdrv = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name  = GESTURE_CLIENT_DRIVER_NAME,
+	.fops = &gesture_client_fops,
+};
+
+static int gesture_client_probe(struct platform_device *pdev)
+{
+	int ret = -1;
+	struct gesture_client *gesture_client_data;
+	struct m4sensorhub_data *m4sensorhub = m4sensorhub_client_get_drvdata();
+
+	if (!m4sensorhub)
+		return -EFAULT;
+
+	gesture_client_data = kzalloc(sizeof(*gesture_client_data),
+						GFP_KERNEL);
+	if (!gesture_client_data)
+		return -ENOMEM;
+
+	gesture_client_data->m4sensorhub = m4sensorhub;
+	platform_set_drvdata(pdev, gesture_client_data);
+
+	gesture_client_data->input_dev = input_allocate_device();
+	if (!gesture_client_data->input_dev) {
+		ret = -ENOMEM;
+		KDEBUG(M4SH_ERROR, "%s: input device allocate failed: %d\n",
+			__func__, ret);
+		goto free_mem;
+	}
+
+	gesture_client_data->input_dev->name = GESTURE_CLIENT_DRIVER_NAME;
+	set_bit(EV_MSC, gesture_client_data->input_dev->evbit);
+	set_bit(MSC_GESTURE1, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE2, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE3, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_CONFIDENCE1, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_CONFIDENCE2, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_CONFIDENCE3, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_VALUE1, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_VALUE2, gesture_client_data->input_dev->mscbit);
+	set_bit(MSC_GESTURE_VALUE3, gesture_client_data->input_dev->mscbit);
+
+	set_bit(EV_ABS, gesture_client_data->input_dev->evbit);
+	set_bit(ABS_TILTSCROLL, gesture_client_data->input_dev->absbit);
+
+	if (input_register_device(gesture_client_data->input_dev)) {
+		KDEBUG(M4SH_ERROR, "%s: input device register failed\n",
+			__func__);
+		input_free_device(gesture_client_data->input_dev);
+		goto free_mem;
+	}
+
+	ret = misc_register(&gesture_client_miscdrv);
+	if (ret < 0) {
+		KDEBUG(M4SH_ERROR, "Error registering %s driver\n", __func__);
+		goto unregister_input_device;
+	}
+	misc_gesture_data = gesture_client_data;
+	ret = m4sensorhub_irq_register(m4sensorhub, M4SH_IRQ_GESTURE_DETECTED,
+				       m4_handle_gesture_irq,
+				       gesture_client_data);
+	if (ret < 0) {
+		KDEBUG(M4SH_ERROR, "Error registering int %d (%d)\n",
+		M4SH_IRQ_GESTURE_DETECTED, ret);
+		goto unregister_misc_device;
+	}
+	ret = m4sensorhub_irq_enable(m4sensorhub, M4SH_IRQ_GESTURE_DETECTED);
+	if (ret < 0) {
+		KDEBUG(M4SH_ERROR, "Error enabling int %d (%d)\n",
+		M4SH_IRQ_GESTURE_DETECTED, ret);
+		goto unregister_display_gesture_irq;
+	}
+	if (device_create_file(&pdev->dev, &dev_attr_gesture_status)) {
+		KDEBUG(M4SH_ERROR, "Error creating %s sys entry\n", __func__);
+		ret = -1;
+		goto disable_display_gesture_irq;
+	}
+	KDEBUG(M4SH_INFO, "Initialized %s driver\n", __func__);
+	return 0;
+
+disable_display_gesture_irq:
+	m4sensorhub_irq_disable(m4sensorhub, M4SH_IRQ_GESTURE_DETECTED);
+unregister_display_gesture_irq:
+	m4sensorhub_irq_unregister(m4sensorhub, M4SH_IRQ_GESTURE_DETECTED);
+unregister_misc_device:
+	misc_gesture_data = NULL;
+	misc_deregister(&gesture_client_miscdrv);
+unregister_input_device:
+	input_unregister_device(gesture_client_data->input_dev);
+free_mem:
+	platform_set_drvdata(pdev, NULL);
+	gesture_client_data->m4sensorhub = NULL;
+	kfree(gesture_client_data);
+	gesture_client_data = NULL;
+	return ret;
+}
+
+static int __exit gesture_client_remove(struct platform_device *pdev)
+{
+	struct gesture_client *gesture_client_data =
+						platform_get_drvdata(pdev);
+
+	device_remove_file(&pdev->dev, &dev_attr_gesture_status);
+	m4sensorhub_irq_disable(gesture_client_data->m4sensorhub,
+				M4SH_IRQ_GESTURE_DETECTED);
+	m4sensorhub_irq_unregister(gesture_client_data->m4sensorhub,
+				M4SH_IRQ_GESTURE_DETECTED);
+	misc_gesture_data = NULL;
+	misc_deregister(&gesture_client_miscdrv);
+	input_unregister_device(gesture_client_data->input_dev);
+	platform_set_drvdata(pdev, NULL);
+	gesture_client_data->m4sensorhub = NULL;
+	kfree(gesture_client_data);
+	gesture_client_data = NULL;
+	return 0;
+}
+
+static void gesture_client_shutdown(struct platform_device *pdev)
+{
+	return;
+}
+#ifdef CONFIG_PM
+static int gesture_client_suspend(struct platform_device *pdev,
+				pm_message_t message)
+{
+	return 0;
+}
+
+static int gesture_client_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+#else
+#define gesture_client_suspend NULL
+#define gesture_client_resume  NULL
+#endif
+
+static struct of_device_id m4gesture_match_tbl[] = {
+	{ .compatible = "mot,m4gesture" },
+	{},
+};
+
+static struct platform_driver gesture_client_driver = {
+	.probe		= gesture_client_probe,
+	.remove		= __exit_p(gesture_client_remove),
+	.shutdown	= gesture_client_shutdown,
+	.suspend	= gesture_client_suspend,
+	.resume		= gesture_client_resume,
+	.driver		= {
+		.name	= GESTURE_CLIENT_DRIVER_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(m4gesture_match_tbl),
+	},
+};
+
+static int __init gesture_client_init(void)
+{
+	return platform_driver_register(&gesture_client_driver);
+}
+
+static void __exit gesture_client_exit(void)
+{
+	platform_driver_unregister(&gesture_client_driver);
+}
+
+module_init(gesture_client_init);
+module_exit(gesture_client_exit);
+
+MODULE_ALIAS("platform:gesture_client");
+MODULE_DESCRIPTION("M4 Sensor Hub Gesture client driver");
+MODULE_AUTHOR("Motorola");
+MODULE_LICENSE("GPL");
+