Re: [PATCH v3 07/40] linux/mei: Header for mei_hdcp driver interface

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>-----Original Message-----
>From: dri-devel [mailto:dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of
>Ramalingam C
>Sent: Tuesday, April 3, 2018 7:27 PM
>To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx;
>seanpaul@xxxxxxxxxxxx; daniel@xxxxxxxx; chris@xxxxxxxxxxxxxxxxxx;
>jani.nikula@xxxxxxxxxxxxxxx; Winkler, Tomas <tomas.winkler@xxxxxxxxx>;
>Usyskin, Alexander <alexander.usyskin@xxxxxxxxx>
>Cc: Vivi, Rodrigo <rodrigo.vivi@xxxxxxxxx>
>Subject: [PATCH v3 07/40] linux/mei: Header for mei_hdcp driver interface
>
>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]
>
>Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
>---
> 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
>3b46bebde718..634c1a5bdf1e 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 */

Why A is made as 0x7. In I915, enum port defines A as 0. Any special reason to
deviate from that ?

>+	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,
>+};
>+
>+/**

Drop an extra *

>+ * wired_protocol: Supported integrated wired HDCP protocol.
>+ * Based on this value, Minor differenceneeded between wired

"Add space after differences"

>+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;
>+};
>+
> #ifdef 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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