[PATCH 10/43] linux/mei: Header for mei_hdcp driver interface

Ramalingam C
2018-02-14T14:20:17Z

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

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
include/linux/mei_hdcp.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)

diff --git a/include/linux/mei_hdcp.h b/include/linux/mei_hdcp.h
index 774b26da0c26..9a869d1cbd5d 100644
--- a/include/linux/mei_hdcp.h
+++ b/include/linux/mei_hdcp.h
@@ -23,6 +23,77 @@
#ifndef _LINUX_MEI_HDCP_H
#define _LINUX_MEI_HDCP_H

+#include <linux/mei_cl_bus.h>
+
+/*
+ * Enumeration of the physical DDI available on the platform
+ */
+enum 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 differenceneeded 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 {
+ struct mei_cl_device *cldev;
+ enum 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;
+};
+
#ifdef CONFIG_INTEL_MEI_HDCP
int mei_hdcp_cldev_get_reference(void *client_data,
struct mei_cl_device **cldev,