[PATCH 02/43] drm: HDMI and DP specific HDCP2.2 defines

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

In preparation for implementing HDCP2.2 in I915, this patch adds
HDCP register definitions for HDMI and DP HDCP adaptations.

HDMI specific HDCP2.2 register definitions are added into drm_hdcp.h,
where are HDCP2.2 register offsets in DPCD offsets are defined at
drm_dp_helper.h.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
 include/drm/drm_dp_helper.h | 59 +++++++++++++++++++++++++++++++++++++++++++++
 include/drm/drm_hdcp.h      | 37 ++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c239e6e24a10..28a4dfbc2613 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -857,6 +857,65 @@
 #define DP_AUX_HDCP_KSV_FIFO		0x6802C
 #define DP_AUX_HDCP_AINFO		0x6803B
 
+/**
+ * DP HDCP2.2 parameter offsets in DPCD address space
+ */
+#define DP_HDCP_2_2_REG_RTX_OFFSET		0x69000
+#define DP_HDCP_2_2_REG_TXCAPS_OFFSET		0x69008
+#define DP_HDCP_2_2_REG_CERT_RX_OFFSET		0x6900B
+#define DP_HDCP_2_2_REG_RRX_OFFSET		0x69215
+#define DP_HDCP_2_2_REG_RX_CAPS_OFFSET		0x6921D
+#define DP_HDCP_2_2_REG_EKPUB_KM_OFFSET		0x69220
+#define DP_HDCP_2_2_REG_EKH_KM_OFFSET		0x692A0
+#define DP_HDCP_2_2_REG_M_OFFSET		0x692B0
+#define DP_HDCP_2_2_REG_HPRIME_OFFSET		0x692C0
+#define DP_HDCP_2_2_REG_EKH_KM_RD_OFFSET	0x692E0
+#define DP_HDCP_2_2_REG_RN_OFFSET		0x692F0
+#define DP_HDCP_2_2_REG_LPRIME_OFFSET		0x692F8
+#define DP_HDCP_2_2_REG_EDKEY_KS_OFFSET		0x69318
+#define	DP_HDCP_2_2_REG_RIV_OFFSET		0x69328
+#define DP_HDCP_2_2_REG_RXINFO_OFFSET		0x69330
+#define DP_HDCP_2_2_REG_SEQ_NUM_V_OFFSET	0x69332
+#define DP_HDCP_2_2_REG_VPRIME_OFFSET		0x69335
+#define DP_HDCP_2_2_REG_RECV_ID_LIST_OFFSET	0x69345
+#define DP_HDCP_2_2_REG_V_OFFSET		0x693E0
+#define DP_HDCP_2_2_REG_SEQ_NUM_M_OFFSET	0x693F0
+#define DP_HDCP_2_2_REG_K_OFFSET		0x693F3
+#define DP_HDCP_2_2_REG_STREAM_ID_TYPE_OFFSET	0x693F5
+#define DP_HDCP_2_2_REG_MPRIME_OFFSET		0x69473
+#define DP_HDCP_2_2_REG_RXSTATUS_OFFSET		0x69493
+#define DP_HDCP_2_2_REG_STREAM_TYPE_OFFSET	0x69494
+#define DP_HDCP_2_2_REG_DBG_OFFSET		0x69518
+
+/**
+ * DP HDCP message start offsets in DPCD address space
+ */
+#define DP_HDCP_2_2_AKE_INIT_OFFSET		DP_HDCP_2_2_REG_RTX_OFFSET
+#define DP_HDCP_2_2_AKE_SEND_CERT_OFFSET	DP_HDCP_2_2_REG_CERT_RX_OFFSET
+#define DP_HDCP_2_2_AKE_NO_STORED_KM_OFFSET	DP_HDCP_2_2_REG_EKPUB_KM_OFFSET
+#define DP_HDCP_2_2_AKE_STORED_KM_OFFSET	DP_HDCP_2_2_REG_EKH_KM_OFFSET
+#define DP_HDCP_2_2_AKE_SEND_HPRIME_OFFSET	DP_HDCP_2_2_REG_HPRIME_OFFSET
+#define DP_HDCP_2_2_AKE_SEND_PARING_INFO_OFFSET	DP_HDCP_2_2_REG_EKH_KM_RD_OFFSET
+#define DP_HDCP_2_2_LC_INIT_OFFSET		DP_HDCP_2_2_REG_RN_OFFSET
+#define DP_HDCP_2_2_LC_SEND_LPRIME_OFFSET	DP_HDCP_2_2_REG_LPRIME_OFFSET
+#define DP_HDCP_2_2_SKE_SEND_EKS_OFFSET		DP_HDCP_2_2_REG_EDKEY_KS_OFFSET
+#define DP_HDCP_2_2_REP_SEND_RECVID_LIST_OFFSET	DP_HDCP_2_2_REG_RXINFO_OFFSET
+#define DP_HDCP_2_2_REP_SEND_ACK_OFFSET		DP_HDCP_2_2_REG_V_OFFSET
+#define DP_HDCP_2_2_REP_STREAM_MANAGE_OFFSET	DP_HDCP_2_2_REG_SEQ_NUM_M_OFFSET
+#define DP_HDCP_2_2_REP_STREAM_READY_OFFSET	DP_HDCP_2_2_REG_MPRIME_OFFSET
+
+union hdcp2_dp_rx_status {
+	struct {
+		uint8_t ready:1;
+		uint8_t hprime_available:1;
+		uint8_t paring_available:1;
+		uint8_t reauth_req:1;
+		uint8_t Link_integrity_failure:1;
+		uint8_t rsvd:3;
+	} fields;
+	uint8_t val;
+} __packed;
+
 /* DP 1.2 Sideband message defines */
 /* peer device type - DP 1.2a Table 2-92 */
 #define DP_PEER_DEVICE_NONE		0x0
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index 9661c700cebb..c5f36b1a004b 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -264,4 +264,41 @@ struct hdcp2_dp_errata_stream_type {
 	uint8_t		stream_type;
 } __packed;
 
+/* HDCP2.2 TIMEOUTs in mSec */
+#define HDCP_2_2_CERT_TIMEOUT			100
+#define HDCP_2_2_HPRIME_NO_PAIRED_TIMEOUT	1000
+#define HDCP_2_2_HPRIME_PAIRED_TIMEOUT		200
+#define HDCP_2_2_PAIRING_TIMEOUT		200
+#define	HDCP_2_2_HDMI_LPRIME_TIMEOUT		20
+#define HDCP_2_2_DP_LPRIME_TIMEOUT		7
+#define HDCP_2_2_RECVID_LIST_TIMEOUT		3000
+#define HDCP_2_2_STREAM_READY_TIMEOUT		100
+
+/* HDMI HDCP2.2 Register Offsets */
+#define HDMI_HDCP_2_2_REG_VER_OFFSET		0x50
+#define HDMI_HDCP_2_2_REG_WR_MSG_OFFSET		0x60
+#define HDMI_HDCP_2_2_REG_RXSTATUS_OFFSET	0x70
+#define HDMI_HDCP_2_2_REG_RD_MSG_OFFSET		0x80
+#define HDMI_HDCP_2_2_REG_DBG_OFFSET		0xC0
+
+#define HDMI_HDCP_2_2_SUPPORT_MASK		(1<<2)
+#define HDCP_RXCAPS_VERSION_HDCP_2_2_VAL	0x2
+
+#define DRM_HDCP_MAX_AUX_LEN			16
+
+#define HDCP_2_2_RX_CAPS_VERSION_VAL		0x02
+#define HDCP_2_2_SEQ_NUM_MAX			0xFFFFFF
+#define	HDCP_2_2_DELAY_BEFORE_ENCRYPTION_EN	200
+
+union hdcp2_hdmi_rx_status {
+	struct {
+		uint8_t msg_sz_hi:2;
+		uint8_t ready:1;
+		uint8_t reauth_req:1;
+		uint8_t reserved:4;
+		uint8_t msg_sz_lo;
+	} fields;
+	uint16_t val;
+} __packed;
+
 #endif
-- 
2.7.4

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