[PATCH v4 07/41] linux/mei: Header for mei_hdcp driver interface

[Ramalingam C <ramalingam.c@intel.com>]

Data structures and Enum for the I915-MEI_HDCP interface are defined
at <linux/mei_hdcp.h>

v2:
  Rebased.
v3:
  mei_cl_device is removed from mei_hdcp_data [Tomas]
v4:
  Comment style and typo fixed [Uma]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
 include/linux/mei_hdcp.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/include/linux/mei_hdcp.h b/include/linux/mei_hdcp.h
index 9c8f140f5344..c8a8c12782d2 100644
--- a/include/linux/mei_hdcp.h
+++ b/include/linux/mei_hdcp.h
@@ -27,11 +27,81 @@
 #ifndef _LINUX_MEI_HDCP_H
 #define _LINUX_MEI_HDCP_H
 
+#include <linux/mei_cl_bus.h>
+
 enum mei_cldev_state {
 	MEI_CLDEV_DISABLED,
 	MEI_CLDEV_ENABLED
 };
 
+/*
+ * Enumeration of the physical DDI available on the platform
+ */
+enum hdcp_physical_port {
+	INVALID_PORT = 0x00,	/* Not a valid port */
+
+	DDI_RANGE_BEGIN = 0x01,	/* Beginning of the valid DDI port range */
+	DDI_B		= 0x01,		/* Port DDI B */
+	DDI_C		= 0x02,		/* Port DDI C */
+	DDI_D		= 0x03,		/* Port DDI D */
+	DDI_E		= 0x04,		/* Port DDI E */
+	DDI_F		= 0x05,		/* Port DDI F */
+	DDI_A		= 0x07,		/* Port DDI A */
+	DDI_RANGE_END	= DDI_A,/* End of the valid DDI port range */
+};
+
+/* The types of HDCP 2.2 ports supported */
+enum hdcp_integrated_port_type {
+	HDCP_INVALID_TYPE	= 0x00,
+
+	/* HDCP 2.x ports that are integrated into Intel HW */
+	INTEGRATED		= 0x01,
+
+	/* HDCP2.2 discrete wired Tx port with LSPCON (HDMI 2.0) solution */
+	LSPCON			= 0x02,
+
+	/* HDCP2.2 discrete wired Tx port using the CPDP (DP 1.3) solution */
+	CPDP			= 0x03,
+};
+
+/*
+ * wired_protocol: Supported integrated wired HDCP protocol.
+ * Based on this value, Minor difference needed between wired specifications
+ * are handled.
+ */
+enum hdcp_protocol {
+	HDCP_PROTOCOL_INVALID,
+	HDCP_PROTOCOL_HDMI,
+	HDCP_PROTOCOL_DP
+};
+
+/*
+ * mei_hdcp_data: Input data to the mei_hdcp APIs.
+ */
+struct mei_hdcp_data {
+	enum hdcp_physical_port port;
+	enum hdcp_integrated_port_type port_type;
+	enum hdcp_protocol protocol;
+
+	/*
+	 * No of streams transmitted on a port.
+	 * In case of HDMI & DP SST, single stream will be
+	 * transmitted on a port.
+	 */
+	uint16_t k;
+
+	/*
+	 * 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;
+
+	/* k(No of Streams per port) x structure of wired_streamid_type */
+	struct hdcp2_streamid_type *streams;
+};
+
 #if IS_ENABLED(CONFIG_INTEL_MEI_HDCP)
 int mei_cldev_register_notify(struct notifier_block *nb);
 int mei_cldev_unregister_notify(struct notifier_block *nb);
-- 
2.7.4

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