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Commit fbf55b97 authored by Shantanu Jain's avatar Shantanu Jain
Browse files

input: it7258_ts_i2c: add force fw and cfg update functionality 



Add force firmware and config update functionality to ITE Tech
touchscreen driver.

Change-Id: I63720092f445700b7ae66e10950d87a4654060aa
Signed-off-by: default avatarShantanu Jain <shjain@codeaurora.org>
parent 9bd1b5c4

drivers/input/touchscreen/it7258_ts_i2c.c

+86 −0
Original line number Diff line number Diff line
@@ -670,6 +670,84 @@ static ssize_t sysfs_cfg_upgrade_show(struct device *dev, 
				gl_ts->cfg_upgrade_result);

}



static ssize_t sysfs_force_fw_upgrade_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	int mode = 0, ret;



	if (gl_ts->suspended) {

		dev_err(dev, "Device is suspended, can't flash fw!!!\n");

		return -EBUSY;

	}



	ret = kstrtoint(buf, 10, &mode);

	if (!ret) {

		dev_err(dev, "failed to read input for sysfs\n");

		return -EINVAL;

	}



	mutex_lock(&gl_ts->fw_cfg_mutex);

	if (mode == 1) {

		gl_ts->fw_cfg_uploading = true;

		ret = IT7260_fw_upload(dev, true);

		if (ret) {

			dev_err(dev, "Failed to force flash fw: %d", ret);

			gl_ts->fw_upgrade_result = false;

		} else {

			gl_ts->fw_upgrade_result = true;

		}

		gl_ts->fw_cfg_uploading = false;

	}

	mutex_unlock(&gl_ts->fw_cfg_mutex);



	return count;

}



static ssize_t sysfs_force_cfg_upgrade_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	int mode = 0, ret;



	if (gl_ts->suspended) {

		dev_err(dev, "Device is suspended, can't flash cfg!!!\n");

		return -EBUSY;

	}



	ret = kstrtoint(buf, 10, &mode);

	if (!ret) {

		dev_err(dev, "failed to read input for sysfs\n");

		return -EINVAL;

	}



	mutex_lock(&gl_ts->fw_cfg_mutex);

	if (mode == 1) {

		gl_ts->fw_cfg_uploading = true;

		ret = IT7260_cfg_upload(dev, true);

		if (ret) {

			dev_err(dev, "Failed to force flash cfg: %d", ret);

			gl_ts->cfg_upgrade_result = false;

		} else {

			gl_ts->cfg_upgrade_result = true;

		}

		gl_ts->fw_cfg_uploading = false;

	}

	mutex_unlock(&gl_ts->fw_cfg_mutex);



	return count;

}



static ssize_t sysfs_force_fw_upgrade_show(struct device *dev,

				struct device_attribute *attr, char *buf)

{

	return snprintf(buf, MAX_BUFFER_SIZE, "%d", gl_ts->fw_upgrade_result);

}



static ssize_t sysfs_force_cfg_upgrade_show(struct device *dev,

				struct device_attribute *attr, char *buf)

{

	return snprintf(buf, MAX_BUFFER_SIZE, "%d", gl_ts->cfg_upgrade_result);

}



static ssize_t sysfs_calibration_show(struct device *dev,

				struct device_attribute *attr, char *buf)

{
@@ -869,6 +947,12 @@ static DEVICE_ATTR(fw_name, S_IRUGO | S_IWUSR, 
			sysfs_fw_name_show, sysfs_fw_name_store);

static DEVICE_ATTR(cfg_name, S_IRUGO | S_IWUSR,

			sysfs_cfg_name_show, sysfs_cfg_name_store);

static DEVICE_ATTR(force_fw_update, S_IRUGO | S_IWUSR,

			sysfs_force_fw_upgrade_show,

			sysfs_force_fw_upgrade_store);

static DEVICE_ATTR(force_cfg_update, S_IRUGO | S_IWUSR,

			sysfs_force_cfg_upgrade_show,

			sysfs_force_cfg_upgrade_store);



static struct attribute *it7260_attributes[] = {

	&dev_attr_version.attr,
@@ -879,6 +963,8 @@ static struct attribute *it7260_attributes[] = { 
	&dev_attr_point.attr,

	&dev_attr_fw_name.attr,

	&dev_attr_cfg_name.attr,

	&dev_attr_force_fw_update.attr,

	&dev_attr_force_cfg_update.attr,

	NULL

};