static bool drm_hdcp_isSupported()
{
int fd = drm_get_dev_fd();
if (fd <= 0) {
ALOGE("Invalid DRM file descriptor.");
return false;
}
unsigned int caps = 0;
int ret = drmCommandRead(fd, DRM_PSB_QUERY_HDCP, &caps, sizeof(caps));
if (ret != 0) {
ALOGE("Failed to query HDCP capability.");
return false;
}
return caps != 0;
}
uint32
vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
{
struct drm_vmw_context_arg c_arg;
int ret;
VMW_FUNC;
ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
&c_arg, sizeof(c_arg));
if (ret)
return -1;
vmw_printf("Context id is %d\n", c_arg.cid);
return c_arg.cid;
}
static bool drm_hdcp_isAuthenticated()
{
int fd = drm_get_dev_fd();
if (fd <= 0) {
ALOGE("Invalid DRM file descriptor.");
return false;
}
unsigned int match = 0;
int ret = drmCommandRead(fd, DRM_PSB_GET_HDCP_LINK_STATUS, &match, sizeof(match));
if (ret != 0) {
ALOGE("Failed to check hdcp link status.");
return false;
}
if (match) {
ALOGV("HDCP is authenticated.");
return true;
} else {
ALOGE("HDCP is not authenticated.");
return false;
}
}
bool Drm::readIoctl(unsigned long cmd, void *data,
unsigned long size)
{
int err;
if (mDrmFd <= 0) {
ELOGTRACE("drm is not initialized");
return false;
}
if (!data || !size) {
ELOGTRACE("invalid parameters");
return false;
}
err = drmCommandRead(mDrmFd, cmd, data, size);
if (err) {
WLOGTRACE("failed to call %ld ioctl with failure %d", cmd, err);
return false;
}
return true;
}
