Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2a7fd097 authored by Casey Piper's avatar Casey Piper
Browse files

msm: mdss: add HDCP 2.2 driver support for encryption level 



When an application requests a particular minimum
HDCP encryption level, the kernel exposes an API
that informs the HDCP library of this change.
Add support for this API call.

Change-Id: I508a08f946c8d36a2567f3e7fba2e5b01e992e31
Signed-off-by: default avatarCasey Piper <cpiper@codeaurora.org>
parent 42a9e098

drivers/video/msm/mdss/mdss_hdmi_hdcp2p2.c

+23 −0
Original line number Diff line number Diff line
@@ -187,6 +187,26 @@ static ssize_t hdcp2p2_sysfs_wta_trigger(struct device *dev, 
	return count;

}



static ssize_t hdcp2p2_sysfs_wta_min_level_change(struct device *dev,

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

{

	struct hdcp2p2_ctrl *hdcp2p2_ctrl =

		hdmi_get_featuredata_from_sysfs_dev(dev, HDMI_TX_FEAT_HDCP2P2);

	int res;



	if (!hdcp2p2_ctrl) {

		DEV_ERR("%s: invalid input\n", __func__);

		return -EINVAL;

	}



	DEV_DBG("%s: notification of minimum level change received\n",

						__func__);

	res = hdcp2p2_ctrl->txmtr_ops->

		hdcp_txmtr_query_stream_type(hdcp2p2_ctrl->hdcp_lib_handle);



	return  count;

}



static void hdcp2p2_auth_failed(struct hdcp2p2_ctrl *hdcp2p2_ctrl)

{

	mutex_lock(&hdcp2p2_ctrl->mutex);
@@ -470,6 +490,8 @@ static ssize_t hdcp2p2_sysfs_rda_hdcp2_version(struct device *dev, 


static DEVICE_ATTR(trigger, S_IRUGO | S_IWUSR, hdcp2p2_sysfs_rda_trigger,

		hdcp2p2_sysfs_wta_trigger);

static DEVICE_ATTR(min_level_change, S_IWUSR, NULL,

		hdcp2p2_sysfs_wta_min_level_change);

static DEVICE_ATTR(sink_status, S_IRUGO, hdcp2p2_sysfs_rda_sink_status,

		NULL);

static DEVICE_ATTR(hdcp2_version, S_IRUGO,
@@ -479,6 +501,7 @@ static DEVICE_ATTR(hdcp2_version, S_IRUGO, 


static struct attribute *hdcp2p2_fs_attrs[] = {

	&dev_attr_trigger.attr,

	&dev_attr_min_level_change.attr,

	&dev_attr_sink_status.attr,

	&dev_attr_hdcp2_version.attr,

	NULL,