Aquaris-M10-4G/drivers/misc/mediatek/heart_rate_sensor/heart_rate.c

#include "heart_rate.h"

struct hrm_context *hrm_context_obj = NULL;


static struct hrm_init_info *heart_rate_init_list[MAX_CHOOSE_HRM_NUM] = { 0 };	/* modified */

static void hrm_early_suspend(struct early_suspend *h);
static void hrm_late_resume(struct early_suspend *h);

static void hrm_work_func(struct work_struct *work)
{

	struct hrm_context *cxt = NULL;
	/* int out_size; */
	/* hwm_sensor_data sensor_data; */
	/* u64 data64[6]; //for unify get_data parameter type */
	u32 data32[6];		/* for hwm_sensor_data.values as int */
	/* u64 data[4]; */
	int status;
	int64_t nt;
	struct timespec time;
	int err = 0;

	cxt = hrm_context_obj;

	if (NULL == cxt->hrm_data.get_data)
		HRM_ERR("hrm driver not register data path\n");

	time.tv_sec = time.tv_nsec = 0;
	time = get_monotonic_coarse();
	nt = time.tv_sec * 1000000000LL + time.tv_nsec;

	/* add wake lock to make sure data can be read before system suspend */
	/* initial data */
	/* data[0] = cxt->drv_data.hrm_data.values[0]; */
	/* data[1] = cxt->drv_data.hrm_data.values[1]; */
	/* data[2] = cxt->drv_data.hrm_data.values[2]; */
	/* data[3] = cxt->drv_data.hrm_data.values[3]; */

	err = cxt->hrm_data.get_data(data32, &status);
	HRM_LOG("hrm get_data %d,%d,%d %d\n", data32[0], data32[1], data32[2], data32[3]);

	if (err) {
		HRM_ERR("get hrm data fails!!\n");
		goto hrm_loop;
	} else {
		if ((data32[0] == cxt->drv_data.hrm_data.values[0])
		    && (data32[1] == cxt->drv_data.hrm_data.values[1])
		    && (data32[2] == cxt->drv_data.hrm_data.values[2])
		    && (data32[3] == cxt->drv_data.hrm_data.values[3])) {
			goto hrm_loop;
		} else {
			cxt->drv_data.hrm_data.values[0] = data32[0];
			cxt->drv_data.hrm_data.values[1] = data32[1];
			cxt->drv_data.hrm_data.values[2] = data32[2];
			cxt->drv_data.hrm_data.values[3] = data32[3];
			HRM_LOG("hrm values %d,%d,%d,%d\n",
				cxt->drv_data.hrm_data.values[0],
				cxt->drv_data.hrm_data.values[1],
				cxt->drv_data.hrm_data.values[2], cxt->drv_data.hrm_data.values[3]);
			cxt->drv_data.hrm_data.status = status;
			cxt->drv_data.hrm_data.time = nt;
		}
	}

	if (true == cxt->is_first_data_after_enable) {
		cxt->is_first_data_after_enable = false;
		/* filter -1 value */
		if (HRM_INVALID_VALUE == cxt->drv_data.hrm_data.values[0] ||
		    HRM_INVALID_VALUE == cxt->drv_data.hrm_data.values[1] ||
		    HRM_INVALID_VALUE == cxt->drv_data.hrm_data.values[2] ||
		    HRM_INVALID_VALUE == cxt->drv_data.hrm_data.values[3]) {
			HRM_LOG(" read invalid data\n");
			goto hrm_loop;

		}
	}
	/* report data to input device */
	/* printk("new hrm work run....\n"); */
	HRM_LOG("hrm data %d,%d,%d %d\n", cxt->drv_data.hrm_data.values[0],
		cxt->drv_data.hrm_data.values[1], cxt->drv_data.hrm_data.values[2],
		cxt->drv_data.hrm_data.values[3]);

	hrm_data_report(cxt->drv_data.hrm_data, cxt->drv_data.hrm_data.status);

hrm_loop:
	if (true == cxt->is_polling_run)
		mod_timer(&cxt->timer, jiffies + atomic_read(&cxt->delay) / (1000 / HZ));
}

static void hrm_poll(unsigned long data)
{
	struct hrm_context *obj = (struct hrm_context *)data;

	if (obj != NULL)
		schedule_work(&obj->report);
}

static struct hrm_context *hrm_context_alloc_object(void)
{

	struct hrm_context *obj = kzalloc(sizeof(*obj), GFP_KERNEL);

	HRM_LOG("hrm_context_alloc_object++++\n");
	if (!obj) {
		HRM_ERR("Alloc hrm object error!\n");
		return NULL;
	}
	atomic_set(&obj->delay, 200);	/*5Hz set work queue delay time 200ms */
	atomic_set(&obj->wake, 0);
	INIT_WORK(&obj->report, hrm_work_func);
	init_timer(&obj->timer);
	obj->timer.expires = jiffies + atomic_read(&obj->delay) / (1000 / HZ);
	obj->timer.function = hrm_poll;
	obj->timer.data = (unsigned long)obj;
	obj->is_first_data_after_enable = false;
	obj->is_polling_run = false;
	obj->is_batch_enable = false;
	mutex_init(&obj->hrm_op_mutex);
	HRM_LOG("hrm_context_alloc_object----\n");
	return obj;
}

static int hrm_real_enable(int enable)
{
	int err = 0;
	struct hrm_context *cxt = NULL;

	cxt = hrm_context_obj;
	if (1 == enable) {

		if (true == cxt->is_active_data || true == cxt->is_active_nodata) {
			err = cxt->hrm_ctl.enable_nodata(1);
			if (err) {
				err = cxt->hrm_ctl.enable_nodata(1);
				if (err) {
					err = cxt->hrm_ctl.enable_nodata(1);
					if (err)
						HRM_ERR("hrm enable(%d) err 3 timers = %d\n",
							enable, err);
				}
			}
			HRM_LOG("hrm real enable\n");
		}

	}
	if (0 == enable) {
		if (false == cxt->is_active_data && false == cxt->is_active_nodata) {
			err = cxt->hrm_ctl.enable_nodata(0);
			if (err)
				HRM_ERR("hrm enable(%d) err = %d\n", enable, err);
			HRM_LOG("hrm real disable\n");
		}

	}

	return err;
}

static int hrm_enable_data(int enable)
{
	struct hrm_context *cxt = NULL;

	cxt = hrm_context_obj;
	if (NULL == cxt->hrm_ctl.open_report_data) {
		HRM_ERR("no hrm control path\n");
		return -1;
	}

	if (1 == enable) {
		HRM_LOG("hrm enable data\n");
		cxt->is_active_data = true;
		cxt->is_first_data_after_enable = true;
		cxt->hrm_ctl.open_report_data(1);
		if (false == cxt->is_polling_run && cxt->is_batch_enable == false) {
			if (false == cxt->hrm_ctl.is_report_input_direct) {
				mod_timer(&cxt->timer,
					  jiffies + atomic_read(&cxt->delay) / (1000 / HZ));
				cxt->is_polling_run = true;
			}
		}
	}
	if (0 == enable) {
		HRM_LOG("hrm disable\n");

		cxt->is_active_data = false;
		cxt->hrm_ctl.open_report_data(0);
		if (true == cxt->is_polling_run) {
			if (false == cxt->hrm_ctl.is_report_input_direct) {
				cxt->is_polling_run = false;
				del_timer_sync(&cxt->timer);
				cancel_work_sync(&cxt->report);
				cxt->drv_data.hrm_data.values[0] = HRM_INVALID_VALUE;
				cxt->drv_data.hrm_data.values[1] = HRM_INVALID_VALUE;
				cxt->drv_data.hrm_data.values[2] = HRM_INVALID_VALUE;
				cxt->drv_data.hrm_data.values[3] = HRM_INVALID_VALUE;
			}
		}

	}
	hrm_real_enable(enable);
	return 0;
}



int hrm_enable_nodata(int enable)
{
	struct hrm_context *cxt = NULL;

	cxt = hrm_context_obj;
	if (NULL == cxt->hrm_ctl.enable_nodata) {
		HRM_ERR("hrm_enable_nodata:hrm ctl path is NULL\n");
		return -1;
	}

	if (1 == enable)
		cxt->is_active_nodata = true;

	if (0 == enable)
		cxt->is_active_nodata = false;

	hrm_real_enable(enable);
	return 0;
}


static ssize_t hrm_show_enable_nodata(struct device *dev, struct device_attribute *attr, char *buf)
{
	int len = 0;

	HRM_LOG(" not support now\n");
	return len;
}

static ssize_t hrm_store_enable_nodata(struct device *dev, struct device_attribute *attr,
				       const char *buf, size_t count)
{
	struct hrm_context *cxt = NULL;
	/* int err =0; */
	HRM_LOG("hrm_store_enable nodata buf=%s\n", buf);
	mutex_lock(&hrm_context_obj->hrm_op_mutex);
	cxt = hrm_context_obj;
	if (NULL == cxt->hrm_ctl.enable_nodata) {
		HRM_LOG("hrm_ctl enable nodata NULL\n");
		mutex_unlock(&hrm_context_obj->hrm_op_mutex);
		return count;
	}
	if (!strncmp(buf, "1", 1))
		hrm_enable_nodata(1);
	else if (!strncmp(buf, "0", 1))
		hrm_enable_nodata(0);
	else
		HRM_ERR(" hrm_store enable nodata cmd error !!\n");

	mutex_unlock(&hrm_context_obj->hrm_op_mutex);
	return count;
}

static ssize_t hrm_store_active(struct device *dev, struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct hrm_context *cxt = NULL;

	HRM_LOG("hrm_store_active buf=%s\n", buf);
	mutex_lock(&hrm_context_obj->hrm_op_mutex);
	cxt = hrm_context_obj;
	if (NULL == cxt->hrm_ctl.open_report_data) {
		HRM_LOG("hrm_ctl enable NULL\n");
		mutex_unlock(&hrm_context_obj->hrm_op_mutex);
		return count;
	}
	if (!strncmp(buf, "1", 1))
		hrm_enable_data(1);
	else if (!strncmp(buf, "0", 1))
		hrm_enable_data(0);
	else
		HRM_ERR(" hrm_store_active error !!\n");

	mutex_unlock(&hrm_context_obj->hrm_op_mutex);
	HRM_LOG(" hrm_store_active done\n");
	return count;
}

/*----------------------------------------------------------------------------*/
static ssize_t hrm_show_active(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hrm_context *cxt = NULL;
	int div = 0;

	cxt = hrm_context_obj;
	/* int len = 0; */
	HRM_LOG("hrm show active not support now\n");
	/* div=cxt->hrm_data.vender_div; */
	HRM_LOG("hrm vender_div value: %d\n", div);
	return snprintf(buf, PAGE_SIZE, "%d\n", div);

	/* return len; */
}

static ssize_t hrm_store_delay(struct device *dev, struct device_attribute *attr,
			       const char *buf, size_t count)
{
	/* struct hrm_context *devobj = (struct hrm_context*)dev_get_drvdata(dev); */
	int delay;
	int mdelay = 0;
	struct hrm_context *cxt = NULL;
	int err = 0;

	mutex_lock(&hrm_context_obj->hrm_op_mutex);
	cxt = hrm_context_obj;
	if (NULL == cxt->hrm_ctl.set_delay) {
		HRM_LOG("hrm_ctl set_delay NULL\n");
		mutex_unlock(&hrm_context_obj->hrm_op_mutex);
		return count;
	}

	err = kstrtoint(buf, 10, &delay);
	if (err != 0) {
		HRM_ERR("invalid format!!\n");
		mutex_unlock(&hrm_context_obj->hrm_op_mutex);
		return count;
	}

	if (false == cxt->hrm_ctl.is_report_input_direct) {
		mdelay = (int)delay / 1000 / 1000;
		atomic_set(&hrm_context_obj->delay, mdelay);
	}
	cxt->hrm_ctl.set_delay(delay);
	HRM_LOG(" hrm_delay %d ns\n", delay);
	mutex_unlock(&hrm_context_obj->hrm_op_mutex);
	return count;
}

static ssize_t hrm_show_delay(struct device *dev, struct device_attribute *attr, char *buf)
{
	int len = 0;

	HRM_LOG(" not support now\n");
	return len;
}

static ssize_t hrm_store_batch(struct device *dev, struct device_attribute *attr,
			       const char *buf, size_t count)
{
	struct hrm_context *cxt = NULL;
	/* int err =0; */
	HRM_LOG("hrm_store_batch buf=%s\n", buf);
	mutex_lock(&hrm_context_obj->hrm_op_mutex);
	cxt = hrm_context_obj;
	if (cxt->hrm_ctl.is_support_batch) {
		if (!strncmp(buf, "1", 1))
			cxt->is_batch_enable = true;
		else if (!strncmp(buf, "0", 1))
			cxt->is_batch_enable = false;
		else
			HRM_ERR(" hrm_store_batch error !!\n");
	} else {
		HRM_LOG(" hrm_store_batch not support\n");
	}
	mutex_unlock(&hrm_context_obj->hrm_op_mutex);
	HRM_LOG(" hrm_store_batch done: %d\n", cxt->is_batch_enable);
	return count;

}

static ssize_t hrm_show_batch(struct device *dev, struct device_attribute *attr, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%d\n", 0);
}

static ssize_t hrm_store_flush(struct device *dev, struct device_attribute *attr,
			       const char *buf, size_t count)
{
	/* mutex_lock(&hrm_context_obj->hrm_op_mutex); */
	/* struct hrm_context *devobj = (struct hrm_context*)dev_get_drvdata(dev); */
	/* do read FIFO data function and report data immediately */
	/* mutex_unlock(&hrm_context_obj->hrm_op_mutex); */
	return count;
}

static ssize_t hrm_show_flush(struct device *dev, struct device_attribute *attr, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%d\n", 0);
}

static ssize_t hrm_show_devnum(struct device *dev, struct device_attribute *attr, char *buf)
{
	const char *devname = NULL;

	devname = dev_name(&hrm_context_obj->idev->dev);
	return snprintf(buf, PAGE_SIZE, "%s\n", devname + 5);
}

static int heart_rate_remove(struct platform_device *pdev)
{
	HRM_LOG("heart_rate_remove\n");
	return 0;
}

static int heart_rate_probe(struct platform_device *pdev)
{
	HRM_LOG("heart_rate_probe\n");
	return 0;
}

#ifdef CONFIG_OF
static const struct of_device_id heart_rate_of_match[] = {
	{.compatible = "mediatek,heart_rate",},
	{},
};
#endif

static struct platform_driver heart_rate_driver = {
	.probe = heart_rate_probe,
	.remove = heart_rate_remove,
	.driver = {
		   .name = "heart_rate",
#ifdef CONFIG_OF
		   .of_match_table = heart_rate_of_match,
#endif
		   }
};

static int hrm_real_driver_init(void)
{
	int i = 0;
	int err = 0;

	HRM_LOG(" hrm_real_driver_init +\n");
	for (i = 0; i < MAX_CHOOSE_HRM_NUM; i++) {
		HRM_LOG(" i=%d\n", i);
		if (0 != heart_rate_init_list[i]) {
			HRM_LOG(" hrm try to init driver %s\n", heart_rate_init_list[i]->name);
			err = heart_rate_init_list[i]->init();
			if (0 == err) {
				HRM_LOG(" hrm real driver %s probe ok\n",
					heart_rate_init_list[i]->name);
				break;
			}
		}
	}

	if (i == MAX_CHOOSE_HRM_NUM) {
		HRM_LOG(" hrm_real_driver_init fail\n");
		err = -1;
	}
	return err;
}

int hrm_driver_add(struct hrm_init_info *obj)
{
	int err = 0;
	int i = 0;

	HRM_FUN(f);

	for (i = 0; i < MAX_CHOOSE_HRM_NUM; i++) {
		if (i == 0) {
			HRM_LOG("register hrm driver for the first time\n");
			if (platform_driver_register(&heart_rate_driver))
				HRM_ERR("failed to register hrm driver already exist\n");
		}

		if (NULL == heart_rate_init_list[i]) {
			obj->platform_diver_addr = &heart_rate_driver;
			heart_rate_init_list[i] = obj;
			break;
		}
	}
	if (NULL == heart_rate_init_list[i]) {
		HRM_ERR("hrm driver add err\n");
		err = -1;
	}

	return err;
} EXPORT_SYMBOL_GPL(hrm_driver_add);

static int hrm_misc_init(struct hrm_context *cxt)
{

	int err = 0;

	/* kernel-3.10\include\linux\Miscdevice.h */
	/* use MISC_DYNAMIC_MINOR exceed 64 */
	cxt->mdev.minor = M_HRM_MISC_MINOR;
	cxt->mdev.name = HRM_MISC_DEV_NAME;

	err = misc_register(&cxt->mdev);
	if (err)
		HRM_ERR("unable to register hrm misc device!!\n");

	return err;
}

static void hrm_input_destroy(struct hrm_context *cxt)
{
	struct input_dev *dev = cxt->idev;

	input_unregister_device(dev);
	input_free_device(dev);
}

static int hrm_input_init(struct hrm_context *cxt)
{
	struct input_dev *dev;
	int err = 0;

	dev = input_allocate_device();
	if (NULL == dev)
		return -ENOMEM;

	dev->name = HRM_INPUTDEV_NAME;

	input_set_capability(dev, EV_ABS, EVENT_TYPE_HRM_BPM);
	input_set_capability(dev, EV_ABS, EVENT_TYPE_HRM_STATUS);

	input_set_abs_params(dev, EVENT_TYPE_HRM_BPM, HRM_VALUE_MIN, HRM_VALUE_MAX, 0, 0);
	input_set_abs_params(dev, EVENT_TYPE_HRM_STATUS, HRM_VALUE_MIN, HRM_VALUE_MAX, 0, 0);
	input_set_drvdata(dev, cxt);

	err = input_register_device(dev);
	if (err < 0) {
		input_free_device(dev);
		return err;
	}
	cxt->idev = dev;

	return 0;
}

DEVICE_ATTR(hrmenablenodata, S_IWUSR | S_IRUGO, hrm_show_enable_nodata, hrm_store_enable_nodata);
DEVICE_ATTR(hrmactive, S_IWUSR | S_IRUGO, hrm_show_active, hrm_store_active);
DEVICE_ATTR(hrmdelay, S_IWUSR | S_IRUGO, hrm_show_delay, hrm_store_delay);
DEVICE_ATTR(hrmbatch, S_IWUSR | S_IRUGO, hrm_show_batch, hrm_store_batch);
DEVICE_ATTR(hrmflush, S_IWUSR | S_IRUGO, hrm_show_flush, hrm_store_flush);
DEVICE_ATTR(hrmdevnum, S_IWUSR | S_IRUGO, hrm_show_devnum, NULL);

static struct attribute *hrm_attributes[] = {
	&dev_attr_hrmenablenodata.attr,
	&dev_attr_hrmactive.attr,
	&dev_attr_hrmdelay.attr,
	&dev_attr_hrmbatch.attr,
	&dev_attr_hrmflush.attr,
	&dev_attr_hrmdevnum.attr,
	NULL
};

static struct attribute_group hrm_attribute_group = {
	.attrs = hrm_attributes
};

int hrm_register_data_path(struct hrm_data_path *data)
{
	struct hrm_context *cxt = NULL;
	/* int err =0; */
	cxt = hrm_context_obj;
	cxt->hrm_data.get_data = data->get_data;
	/* cxt->hrm_data.vender_div = data->vender_div; */
	/* cxt->hrm_data.get_raw_data = data->get_raw_data; */
	/* HRM_LOG("hrm register data path vender_div: %d\n", cxt->hrm_data.vender_div); */
	if (NULL == cxt->hrm_data.get_data) {
		HRM_LOG("hrm register data path fail\n");
		return -1;
	}
	return 0;
}

int hrm_register_control_path(struct hrm_control_path *ctl)
{
	struct hrm_context *cxt = NULL;
	int err = 0;

	cxt = hrm_context_obj;
	cxt->hrm_ctl.set_delay = ctl->set_delay;
	cxt->hrm_ctl.open_report_data = ctl->open_report_data;
	cxt->hrm_ctl.enable_nodata = ctl->enable_nodata;
	cxt->hrm_ctl.is_support_batch = ctl->is_support_batch;

	if (NULL == cxt->hrm_ctl.set_delay || NULL == cxt->hrm_ctl.open_report_data
	    || NULL == cxt->hrm_ctl.enable_nodata) {
		HRM_LOG("hrm register control path fail\n");
		return -1;
	}
	/* add misc dev for sensor hal control cmd */
	err = hrm_misc_init(hrm_context_obj);
	if (err) {
		HRM_ERR("unable to register hrm misc device!!\n");
		return -2;
	}
	err = sysfs_create_group(&hrm_context_obj->mdev.this_device->kobj, &hrm_attribute_group);
	if (err < 0) {
		HRM_ERR("unable to create hrm attribute file\n");
		return -3;
	}

	kobject_uevent(&hrm_context_obj->mdev.this_device->kobj, KOBJ_ADD);

	return 0;
}

int hrm_data_report(hwm_sensor_data data, int status)
{
	struct hrm_context *cxt = NULL;
	int err = 0;

	HRM_LOG("+hrm_data_report! %d, %d, %d, %d\n", data.values[0], data.values[1],
		data.values[2], data.values[3]);
	cxt = hrm_context_obj;
	input_report_abs(cxt->idev, EVENT_TYPE_HRM_BPM, data.values[0]);
	input_report_abs(cxt->idev, EVENT_TYPE_HRM_STATUS, data.values[1]);
	input_sync(cxt->idev);
	return err;
}

static int hrm_probe(struct platform_device *pdev)
{

	int err;

	HRM_LOG("+++++++++++++hrm_probe!!\n");
	hrm_context_obj = hrm_context_alloc_object();
	if (!hrm_context_obj) {
		err = -ENOMEM;
		HRM_ERR("unable to allocate devobj!\n");
		goto exit_alloc_data_failed;
	}
	/* init real hrmeleration driver */
	err = hrm_real_driver_init();
	if (err) {
		HRM_ERR("hrm real driver init fail\n");
		goto real_driver_init_fail;
	}
	/* err = hrm_factory_device_init(); */
	/* if(err) */
	/* { */
	/* HRM_ERR("hrm_factory_device_init fail\n"); */
	/* } */

	/* init input dev */
	err = hrm_input_init(hrm_context_obj);
	if (err) {
		HRM_ERR("unable to register hrm input device!\n");
		goto exit_alloc_input_dev_failed;
	}
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(CONFIG_EARLYSUSPEND)
	atomic_set(&(hrm_context_obj->early_suspend), 0);
	hrm_context_obj->early_drv.level = EARLY_SUSPEND_LEVEL_STOP_DRAWING - 1,
	    hrm_context_obj->early_drv.suspend = hrm_early_suspend,
	    hrm_context_obj->early_drv.resume = hrm_late_resume,
	    register_early_suspend(&hrm_context_obj->early_drv);
#endif				/* #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(CONFIG_EARLYSUSPEND) */

	HRM_LOG("----hrm_probe OK !!\n");
	return 0;

	/* exit_hwmsen_create_attr_failed: */
	/* exit_misc_register_failed: */

	/* exit_err_sysfs: */

	if (err) {
		HRM_ERR("sysfs node creation error\n");
		hrm_input_destroy(hrm_context_obj);
	}

real_driver_init_fail:
exit_alloc_input_dev_failed:
	kfree(hrm_context_obj);

exit_alloc_data_failed:


	HRM_LOG("----hrm_probe fail !!!\n");
	return err;
}



static int hrm_remove(struct platform_device *pdev)
{
	int err = 0;

	HRM_FUN(f);
	input_unregister_device(hrm_context_obj->idev);
	sysfs_remove_group(&hrm_context_obj->idev->dev.kobj, &hrm_attribute_group);

	err = misc_deregister(&hrm_context_obj->mdev);
	if (err)
		HRM_ERR("misc_deregister fail: %d\n", err);

	kfree(hrm_context_obj);

	return 0;
}

static void hrm_early_suspend(struct early_suspend *h)
{
	atomic_set(&(hrm_context_obj->early_suspend), 1);
	HRM_LOG(" hrm_early_suspend ok------->hwm_obj->early_suspend=%d\n",
		atomic_read(&(hrm_context_obj->early_suspend)));
}

/*----------------------------------------------------------------------------*/
static void hrm_late_resume(struct early_suspend *h)
{
	atomic_set(&(hrm_context_obj->early_suspend), 0);
	HRM_LOG(" hrm_late_resume ok------->hwm_obj->early_suspend=%d\n",
		atomic_read(&(hrm_context_obj->early_suspend)));
}

static int hrm_suspend(struct platform_device *dev, pm_message_t state)
{
	return 0;
}

/*----------------------------------------------------------------------------*/
static int hrm_resume(struct platform_device *dev)
{
	return 0;
}

#ifdef CONFIG_OF
static const struct of_device_id m_hrm_pl_of_match[] = {
	{.compatible = "mediatek,m_hrm_pl",},
	{},
};
#endif

static struct platform_driver hrm_driver = {
	.probe = hrm_probe,
	.remove = hrm_remove,
	.suspend = hrm_suspend,
	.resume = hrm_resume,
	.driver = {
		   .name = HRM_PL_DEV_NAME,	/* mt_hrm_pl */
#ifdef CONFIG_OF
		   .of_match_table = m_hrm_pl_of_match,
#endif
		   }
};

static int __init hrm_init(void)
{
	HRM_FUN(f);

	if (platform_driver_register(&hrm_driver)) {
		HRM_ERR("failed to register hrm driver\n");
		return -ENODEV;
	}

	return 0;
}

static void __exit hrm_exit(void)
{
	platform_driver_unregister(&hrm_driver);
	platform_driver_unregister(&heart_rate_driver);
}

late_initcall(hrm_init);
/* module_init(hrm_init); */
/* module_exit(hrm_exit); */
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("HEART_RATE device driver");
MODULE_AUTHOR("Mediatek");