For upcoming implementation of HDCP2.2 in I915, important variable required for HDCP2.2 are defined.
HDCP_shim is extended to support encoder specific HDCP2.2 flows.
v2: 1.4 shim is extended to support hdcp2.2. [Sean Paul] platform's/panel's hdcp ver capability is removed. [Sean Paul] mei references in i915_private are moved to later patches. [Chris Wilson] v3: mei_cl_device ref is moved into intel_hdcp v4: Extra * in comment is removed [Uma] v5: No Change.
Signed-off-by: Ramalingam C ramalingam.c@intel.com --- drivers/gpu/drm/i915/intel_drv.h | 61 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index eb480574a92e..b615ea4a44c3 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -29,6 +29,7 @@ #include <linux/i2c.h> #include <linux/hdmi.h> #include <linux/sched/clock.h> +#include <linux/mei_hdcp.h> #include <drm/i915_drm.h> #include "i915_drv.h" #include <drm/drm_crtc.h> @@ -375,6 +376,32 @@ struct intel_hdcp_shim { /* Detects panel's hdcp capability. This is optional for HDMI. */ int (*hdcp_capable)(struct intel_digital_port *intel_dig_port, bool *hdcp_capable); + + /* Write HDCP2.2 messages */ + int (*write_2_2_msg)(struct intel_digital_port *intel_dig_port, + void *buf, size_t size); + + /* Read HDCP2.2 messages */ + int (*read_2_2_msg)(struct intel_digital_port *intel_dig_port, + uint8_t msg_id, void *buf, size_t size); + + /* + * Implementation of DP HDCP2.2 Errata for the communication of stream + * type to Receivers. In DP HDCP2.2 Stream type is one of the input to + * the HDCP2.2 Chiper for En/De-Cryption. Not applicable for HDMI. + */ + int (*config_stream_type)(struct intel_digital_port *intel_dig_port, + void *buf, size_t size); + + /* HDCP2.2 Link Integrity Check */ + int (*check_2_2_link)(struct intel_digital_port *intel_dig_port); + + /* Detects whether Panel is HDCP2.2 capable */ + int (*hdcp_2_2_capable)(struct intel_digital_port *intel_dig_port, + bool *capable); + + /* Detects the HDCP protocol(DP/HDMI) required on the port */ + enum hdcp_protocol (*hdcp_protocol)(void); };
struct intel_hdcp { @@ -384,6 +411,40 @@ struct intel_hdcp { uint64_t hdcp_value; struct delayed_work hdcp_check_work; struct work_struct hdcp_prop_work; + + /* HDCP2.2 related definitions */ + bool hdcp2_supported; + + /* + * Content Stream Type defined by content owner. TYPE0(0x0) content can + * flow in the link protected by HDCP2.2 or HDCP1.4, where as TYPE1(0x1) + * content can flow only through a link protected by HDCP2.2. + */ + u8 content_type; + + bool is_paired; + bool is_repeater; + + /* + * Count of ReceiverID_List received. Initialized to 0 at AKE_INIT. + * Incremented after processing the RepeaterAuth_Send_ReceiverID_List. + * When it rolls over re-auth has to be triggered. + */ + uint32_t seq_num_v; + + /* + * Count of RepeaterAuth_Stream_Manage msg propagated. + * Initialized to 0 on AKE_INIT. Incremented after every successful + * transmission of RepeaterAuth_Stream_Manage message. When it rolls + * over re-Auth has to be triggered. + */ + uint32_t seq_num_m; + + /* mei interface related information */ + struct mei_cl_device *cldev; + struct mei_hdcp_data mei_data; + + struct delayed_work hdcp2_check_work; };
struct intel_connector {