diff options
| author | Jon Mayo <jmayo@nvidia.com> | 2011-01-03 17:26:25 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:36:58 -0800 |
| commit | bb8cc88e13cda40985377c59a92e4a03c6647f9a (patch) | |
| tree | a9a007199ce48df440aa7829ff7bcebf1b8fb2f9 /drivers/video/tegra/dc/hdmi.h | |
| parent | 5b1432a6d8a49aa1fa47f3630f7eed8fd3916910 (diff) | |
[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. Currently only one nvhdcp device may be created. An ioctl
interface is in video/nvhdcp.h
Check for repeaters and store repeater info. userspace application
queries this status to authenticate the connection. When authentication
fails, auto-renegotiate every 1.75 seconds. Give up after 5 failed attempts,
reset after hotplug or policy change.
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. Currently
only TEGRA_DC_OUT_NVHDCP_POLICY_ALWAYS_ON is supported.
Change-Id: I0db66fc86096b98d2604544061721d291523de75
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Phillip Smith <psmith@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Signed-off-by: Erik Gilling <konkers@android.com>
Diffstat (limited to 'drivers/video/tegra/dc/hdmi.h')
| -rw-r--r-- | drivers/video/tegra/dc/hdmi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/hdmi.h b/drivers/video/tegra/dc/hdmi.h index 0189f08719fe..a2fa3482f2b9 100644 --- a/drivers/video/tegra/dc/hdmi.h +++ b/drivers/video/tegra/dc/hdmi.h @@ -180,4 +180,10 @@ struct hdmi_audio_infoframe { #define HDMI_AUDIO_CXT_HE_AAC_V2 0x2 #define HDMI_AUDIO_CXT_MPEG_SURROUND 0x3 +struct tegra_dc_hdmi_data; + +unsigned long tegra_hdmi_readl(struct tegra_dc_hdmi_data *hdmi, + unsigned long reg); +void tegra_hdmi_writel(struct tegra_dc_hdmi_data *hdmi, + unsigned long val, unsigned long reg); #endif |