drm: HDMI and DP specific HDCP2.2 defines

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 as HDCP2.2 register offsets in DPCD offsets are defined at
drm_dp_helper.h.

v2:
  bit_field definitions are replaced by macros. [Tomas and Jani]
v3:
  No Changes.
v4:
  Comments style and typos are fixed [Uma]
v5:
  Fix for macros.
v6:
  Adds _MS to the timeouts to represent units [Sean Paul]
v7:
  Macro DP_HDCP_2_2_REG_EKH_KM_OFFSET renamed [Uma]
  Redundant macro is removed [Uma]
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Sean Paul <seanpaul@chromium.org> (for merging through drm-intel)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1540806351-7137-6-git-send-email-ramalingam.c@intel.com

include/drm/drm_dp_helper.h

@@ -905,6 +905,57 @@
 #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_WR_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_WR_OFFSET
+#define DP_HDCP_2_2_AKE_SEND_HPRIME_OFFSET	DP_HDCP_2_2_REG_HPRIME_OFFSET
+#define DP_HDCP_2_2_AKE_SEND_PAIRING_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
+
+#define HDCP_2_2_DP_RXSTATUS_LEN		1
+#define HDCP_2_2_DP_RXSTATUS_READY(x)		((x) & BIT(0))
+#define HDCP_2_2_DP_RXSTATUS_H_PRIME(x)		((x) & BIT(1))
+#define HDCP_2_2_DP_RXSTATUS_PAIRING(x)		((x) & BIT(2))
+#define HDCP_2_2_DP_RXSTATUS_REAUTH_REQ(x)	((x) & BIT(3))
+#define HDCP_2_2_DP_RXSTATUS_LINK_FAILED(x)	((x) & BIT(4))
+
 /* DP 1.2 Sideband message defines */
 /* peer device type - DP 1.2a Table 2-92 */
 #define DP_PEER_DEVICE_NONE		0x0

include/drm/drm_hdcp.h

@@ -222,4 +222,32 @@ struct hdcp2_dp_errata_stream_type {
 	u8	stream_type;
 } __packed;
 
+/* HDCP2.2 TIMEOUTs in mSec */
+#define HDCP_2_2_CERT_TIMEOUT_MS		100
+#define HDCP_2_2_HPRIME_NO_PAIRED_TIMEOUT_MS	1000
+#define HDCP_2_2_HPRIME_PAIRED_TIMEOUT_MS	200
+#define HDCP_2_2_PAIRING_TIMEOUT_MS		200
+#define	HDCP_2_2_HDMI_LPRIME_TIMEOUT_MS		20
+#define HDCP_2_2_DP_LPRIME_TIMEOUT_MS		7
+#define HDCP_2_2_RECVID_LIST_TIMEOUT_MS		3000
+#define HDCP_2_2_STREAM_READY_TIMEOUT_MS	100
+
+/* HDMI HDCP2.2 Register Offsets */
+#define HDCP_2_2_HDMI_REG_VER_OFFSET		0x50
+#define HDCP_2_2_HDMI_REG_WR_MSG_OFFSET		0x60
+#define HDCP_2_2_HDMI_REG_RXSTATUS_OFFSET	0x70
+#define HDCP_2_2_HDMI_REG_RD_MSG_OFFSET		0x80
+#define HDCP_2_2_HDMI_REG_DBG_OFFSET		0xC0
+
+#define HDCP_2_2_HDMI_SUPPORT_MASK		BIT(2)
+#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
+
+/* Below macros take a byte at a time and mask the bit(s) */
+#define HDCP_2_2_HDMI_RXSTATUS_LEN		2
+#define HDCP_2_2_HDMI_RXSTATUS_MSG_SZ_HI(x)	((x) & 0x3)
+#define HDCP_2_2_HDMI_RXSTATUS_READY(x)		((x) & BIT(2))
+#define HDCP_2_2_HDMI_RXSTATUS_REAUTH_REQ(x)	((x) & BIT(3))
+
 #endif