diff options
| author | Casey Piper <cpiper@codeaurora.org> | 2015-08-29 23:38:47 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:45:21 -0700 |
| commit | 70199126ff3ceb474ddec74c5c0d41b4971bbd51 (patch) | |
| tree | 111473d7fda0b835da262a9eb139ff1ee5cd940a /drivers/video/fbdev | |
| parent | 746fd7db83461d54a340c061a2870ecf3a952a8a (diff) | |
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: Casey Piper <cpiper@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_hdmi_hdcp2p2.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/video/fbdev/msm/mdss_hdmi_hdcp2p2.c b/drivers/video/fbdev/msm/mdss_hdmi_hdcp2p2.c index 7f960c43ee4b..4e571c59b820 100644 --- a/drivers/video/fbdev/msm/mdss_hdmi_hdcp2p2.c +++ b/drivers/video/fbdev/msm/mdss_hdmi_hdcp2p2.c @@ -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, |