android_kernel_samsung_rubenslte/drivers/adsp_factory/mpu6515_accel.c

/*
*  Copyright (C) 2012, Samsung Electronics Co. Ltd. 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 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.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include "adsp.h"
#define VENDOR		"INVENSENSE"
#define CHIP_ID		"MPU6515"

#define RAWDATA_TIMER_MS	200
#define RAWDATA_TIMER_MARGIN_MS	20
#define ACCEL_SELFTEST_TRY_CNT 7

static struct work_struct timer_stop_data_work;
extern unsigned int raw_data_stream;
extern struct mutex raw_stream_lock;

static ssize_t accel_vendor_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	return sprintf(buf, "%s\n", VENDOR);
}

static ssize_t accel_name_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	return sprintf(buf, "%s\n", CHIP_ID);
}

static ssize_t sensor_type_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	return sprintf(buf, "%s\n", "ADSP");
}

static ssize_t accel_calibration_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	struct adsp_data *data = dev_get_drvdata(dev);
	int iCount = 0;

	struct msg_data message;
	message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
	adsp_unicast(message, NETLINK_MESSAGE_GET_CALIB_DATA, 0, 0);

	while (!(data->calib_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL))
		msleep(20);

	data->calib_ready_flag &= 0 << ADSP_FACTORY_MODE_ACCEL;

	pr_info("[FACTORY] %s: %d,%d,%d,%d\n", __func__,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].result,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].x,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].y,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].z);

	iCount = snprintf(buf, PAGE_SIZE, "%d,%d,%d,%d\n",
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].result,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].x,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].y,
		data->sensor_calib_data[ADSP_FACTORY_MODE_ACCEL].z);
	return iCount;
}

static ssize_t accel_calibration_store(struct device *dev,
	struct device_attribute *attr, const char *buf, size_t size)
{
#ifdef CONFIG_ARCH_MSM8974PRO
	struct msg_data message;
	unsigned long enable = 0;
	struct adsp_data *data = dev_get_drvdata(dev);
	if (strict_strtoul(buf, 10, &enable)) {
		pr_err("[FACTORY] %s: strict_strtoul fail\n", __func__);
		return -EINVAL;
	}
	if (enable > 0)
		enable = 1;

	message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
	message.param1 = enable;
	msleep(RAWDATA_TIMER_MS + RAWDATA_TIMER_MARGIN_MS);
	adsp_unicast(message, NETLINK_MESSAGE_CALIB_STORE_DATA, 0, 0);

	while (!(data->calib_store_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL))
		msleep(20);

	if (data->sensor_calib_result[ADSP_FACTORY_MODE_ACCEL].nCalibstoreresult < 0)
		pr_err("[FACTORY] %s: accel_do_calibrate() failed\n", __func__);

	data->calib_store_ready_flag |= 0 << ADSP_FACTORY_MODE_ACCEL;

	pr_info("[FACTORY] %s: result(%d)\n", __func__,
		data->sensor_calib_result[ADSP_FACTORY_MODE_ACCEL].nCalibstoreresult);
#else
	struct adsp_data *data = dev_get_drvdata(dev);
	struct msg_data message;
	message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
	adsp_unicast(message, NETLINK_MESSAGE_CALIB_STORE_DATA, 0, 0);

	while (!(data->calib_store_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL))
		msleep(20);

	if (data->sensor_calib_result[ADSP_FACTORY_MODE_ACCEL].nCalibstoreresult < 0)
		pr_err("[FACTORY] %s: accel_do_calibrate() failed\n", __func__);

	data->calib_store_ready_flag |= 0 << ADSP_FACTORY_MODE_ACCEL;

	pr_info("[FACTORY] %s: result(%d)\n", __func__,
		data->sensor_calib_result[ADSP_FACTORY_MODE_ACCEL].nCalibstoreresult);
#endif
	return size;
}

static ssize_t accel_selftest_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	struct adsp_data *data = dev_get_drvdata(dev);
	int result1 = 0;
	int result2 = 0;
	unsigned long timeout;
	struct msg_data message;
	int retry = 0;

retry_accel_selftest:
	message.sensor_type = ADSP_FACTORY_MODE_ACCEL;

	msleep(RAWDATA_TIMER_MS + RAWDATA_TIMER_MARGIN_MS);

	adsp_unicast(message, NETLINK_MESSAGE_SELFTEST_SHOW_DATA, 0, 0);

	timeout = jiffies + (20 * HZ);

	while (!(data->selftest_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL)) {
		msleep(20);
		if (time_after(jiffies, timeout)) {
			pr_info("[FACTORY] %s: Timeout!!!\n", __func__);
			return sprintf(buf, "%d,%d.%01d,%d.%01d,%d.%01d\n",
				1, 0, 0, 0, 0, 0, 0);
		}
	}

	if (data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].nSelftestresult1 < 0)
		pr_err("[FACTORY] %s: accel_do_calibrate() failed\n", __func__);

	data->selftest_ready_flag &= 0 << ADSP_FACTORY_MODE_ACCEL;
	result1 = data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].nSelftestresult1 + 1;
	result2 = data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].nSelftestresult2 + 1;

	pr_info("[FACTORY] %s : result = %d\n", __func__, result1);
	pr_info("[FACTORY] %d.%03d,%d.%03d,%d.%03d\n",
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_x),
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_x_dec),
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_y),
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_y_dec),
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_z),
		(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_z_dec));

	if (result1 != 1) {
		if (retry < ACCEL_SELFTEST_TRY_CNT && data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_x_dec == 0) {
			retry++;
			msleep(RAWDATA_TIMER_MS * 2);
			goto retry_accel_selftest;
		}
	}

	return sprintf(buf, "%d,%d.%03d,%d.%03d,%d.%03d\n", result1,
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_x),
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_x_dec),
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_y),
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_y_dec),
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_z),
			(int)abs(data->sensor_selftest_result[ADSP_FACTORY_MODE_ACCEL].ratio_z_dec));
}

static ssize_t accel_raw_data_read(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	struct msg_data message;
	unsigned long timeout = jiffies + (2 * HZ);
	struct adsp_data *data = dev_get_drvdata(dev);
	if (!(raw_data_stream & ADSP_RAW_ACCEL)) {
		pr_info("[FACTORY] %s: Start\n", __func__);
		mutex_lock(&raw_stream_lock);
		raw_data_stream |= ADSP_RAW_ACCEL;
		message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
		adsp_unicast(message, NETLINK_MESSAGE_GET_RAW_DATA, 0, 0);
		mutex_unlock(&raw_stream_lock);
	}

	while (!(data->data_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL)) {
		msleep(20);
		if (time_after(jiffies, timeout)) {
			pr_info("[FACTORY] %s: Timeout!!!\n", __func__);
			return snprintf(buf, PAGE_SIZE, "%d,%d,%d\n",0, 0, 0);
		}
	}
	adsp_factory_start_timer(RAWDATA_TIMER_MS);

	return snprintf(buf, PAGE_SIZE, "%d,%d,%d\n",
		data->sensor_data[ADSP_FACTORY_MODE_ACCEL].x,
		data->sensor_data[ADSP_FACTORY_MODE_ACCEL].y,
		data->sensor_data[ADSP_FACTORY_MODE_ACCEL].z);
}

static ssize_t accel_reactive_show(struct device *dev,
	struct device_attribute *attr, char *buf)
{
	int alert_val = 0;
	struct adsp_data *data = dev_get_drvdata(dev);

	data->alert_ready_flag &= 0 << ADSP_FACTORY_MODE_ACCEL;
	if (data->reactive_alert == 2) {
		struct msg_data message;
		alert_val = 1;
		message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
		message.param1 = 0;
		adsp_unicast(message, NETLINK_MESSAGE_REACTIVE_ALERT_DATA, 0, 0);
	} else if (data->reactive_alert == 1) {
		alert_val = 0;
	} else if (data->reactive_alert == 3) {
		struct msg_data message;
		alert_val = 1;
		message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
		message.param1 = 3;
		adsp_unicast(message, NETLINK_MESSAGE_REACTIVE_ALERT_DATA, 0, 0);
	}

	pr_info("[FACTORY] %s: data->alert_ready_flag = %u, data->reactive_alert = %d, return %d\n",
		__func__, data->alert_ready_flag, data->reactive_alert, alert_val);

	return snprintf(buf, PAGE_SIZE, "%d\n", alert_val);
}


static ssize_t accel_reactive_store(struct device *dev,
	struct device_attribute *attr, const char *buf, size_t size)
{
	unsigned long enable = 0;
	struct adsp_data *data = dev_get_drvdata(dev);
	if (strict_strtoul(buf, 10, &enable)) {
		pr_err("[FACTORY] %s: strict_strtoul fail\n", __func__);
		return -EINVAL;
	}

	pr_info("[FACTORY] %s: enable = %ld, data->alert_ready_flag = %u\n",
		__func__, enable, data->alert_ready_flag);

	if (!(data->alert_ready_flag & 1 << ADSP_FACTORY_MODE_ACCEL)) {
		struct msg_data message;
		message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
		message.param1 = enable;
		adsp_unicast(message, NETLINK_MESSAGE_REACTIVE_ALERT_DATA, 0, 0);
	}
	return size;
}

static void accel_stop_raw_data_worker(struct work_struct *work)
{
	struct msg_data message;

	if ((raw_data_stream & ADSP_RAW_ACCEL)) {
		mutex_lock(&raw_stream_lock);
		raw_data_stream &= ~ADSP_RAW_ACCEL;
		message.sensor_type = ADSP_FACTORY_MODE_ACCEL;
		adsp_unicast(message, NETLINK_MESSAGE_STOP_RAW_DATA, 0, 0);
		mutex_unlock(&raw_stream_lock);
		pr_info("[FACTORY] %s: raw_data_stream flag = %d\n",
			__func__, raw_data_stream);
	}
	return;
}

static DEVICE_ATTR(name, S_IRUGO, accel_name_show, NULL);
static DEVICE_ATTR(vendor, S_IRUGO, accel_vendor_show, NULL);
static DEVICE_ATTR(type, S_IRUGO, sensor_type_show, NULL);
static DEVICE_ATTR(calibration, S_IRUGO | S_IWUSR | S_IWGRP,
	accel_calibration_show, accel_calibration_store);
static DEVICE_ATTR(selftest, S_IRUSR | S_IRGRP,
	accel_selftest_show, NULL);
static DEVICE_ATTR(raw_data, S_IRUGO, accel_raw_data_read, NULL);
static DEVICE_ATTR(reactive_alert, S_IRUGO | S_IWUSR | S_IWGRP,
		accel_reactive_show, accel_reactive_store);

static struct device_attribute *acc_attrs[] = {
	&dev_attr_name,
	&dev_attr_vendor,
	&dev_attr_type,
	&dev_attr_calibration,
	&dev_attr_selftest,
	&dev_attr_raw_data,
	&dev_attr_reactive_alert,
	NULL,
};

int accel_factory_init(struct adsp_data *data)
{
	return 0;
}

int accel_factory_exit(struct adsp_data *data)
{
	return 0;
}

int accel_factory_receive_data(struct adsp_data *data, int cmd )
{
	switch (cmd) {
		case CALLBACK_REGISTER_SUCCESS:
			pr_info("[FACTORY] %s: mpu6515 registration success \n",
				__func__);
			break;
		case CALLBACK_TIMER_EXPIRED:
			pr_info("[FACTORY] %s: raw_data_stream flag = %d\n",
				__func__, raw_data_stream);
			schedule_work(&timer_stop_data_work);
			break;
		default:
			break;
	}
	return 0;
}

static struct adsp_fac_ctl adsp_fact_cb = {
	.init_fnc = accel_factory_init,
	.exit_fnc = accel_factory_exit,
	.receive_data_fnc = accel_factory_receive_data
};

static int __devinit mpu6515accel_factory_init(void)
{
	adsp_factory_register("accelerometer_sensor",
		ADSP_FACTORY_MODE_ACCEL, acc_attrs, &adsp_fact_cb);
	INIT_WORK(&timer_stop_data_work, accel_stop_raw_data_worker);

	pr_err("[FACTORY] %s\n", __func__);

	return 0;
}
static void __devexit mpu6515accel_factory_exit(void)
{
	pr_err("[FACTORY] %s\n", __func__);
}
module_init(mpu6515accel_factory_init);
module_exit(mpu6515accel_factory_exit);