[ARM] tegra: hdmi nvhdcp driver

Device /dev/nvhdcpX is used to manage NVHDCP on framebuffer /dev/fbX.
These devices are created on hdmi driver initialition when it is
attached to dc. An ioctl interface is in video/nvhdcp.h

Hooks into edid.c and hdmi.c were added to take control of I2C bus.

use TEGRA_DC_OUT_NVHDCP_POLICY_ON_DEMAND in tegra_dc_out.flags in board
panel configuration to select a different default policy at probe.

Change-Id: I0db66fc86096b98d2604544061721d291523de75
Reviewed-on: http://git-master/r/14466
Reviewed-by: Jonathan Mayo <jmayo@nvidia.com>
Tested-by: Jonathan Mayo <jmayo@nvidia.com>
Reviewed-by: Phillip Smith <psmith@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/video/tegra/dc/nvhdcp.h b/drivers/video/tegra/dc/nvhdcp.h
new file mode 100644
index 000000000000..9c8fc00250b1
--- /dev/null
+++ b/drivers/video/tegra/dc/nvhdcp.h
@@ -0,0 +1,28 @@
+/*
+ * drivers/video/tegra/dc/nvhdcp.h
+ *
+ * Copyright (c) 2010-2011, NVIDIA Corporation.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __DRIVERS_VIDEO_TEGRA_DC_NVHDCP_H
+#define __DRIVERS_VIDEO_TEGRA_DC_NVHDCP_H
+#include <video/nvhdcp.h>
+
+struct tegra_nvhdcp;
+void tegra_nvhdcp_set_plug(struct tegra_nvhdcp *nvhdcp, bool hpd);
+int tegra_nvhdcp_set_policy(struct tegra_nvhdcp *nvhdcp, int pol);
+void tegra_nvhdcp_suspend(struct tegra_nvhdcp *nvhdcp);
+struct tegra_nvhdcp *tegra_nvhdcp_create(struct tegra_dc_hdmi_data *hdmi, int id);
+void tegra_nvhdcp_destroy(struct tegra_nvhdcp *nvhdcp);
+
+#endif