-----Original Message----- From: C, Ramalingam Sent: Saturday, July 14, 2018 8:45 AM To: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; daniel@ffwll.ch; seanpaul@chromium.org; Winkler, Tomas tomas.winkler@intel.com; Usyskin, Alexander alexander.usyskin@intel.com; Shankar, Uma uma.shankar@intel.com Cc: Sharma, Shashank shashank.sharma@intel.com; C, Ramalingam ramalingam.c@intel.com Subject: [PATCH v6 02/35] 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]
Signed-off-by: Ramalingam C ramalingam.c@intel.com Reviewed-by: Sean Paul seanpaul@chromium.org
include/drm/drm_dp_helper.h | 51 +++++++++++++++++++++++++++++++++++++++++++++ include/drm/drm_hdcp.h | 30 ++++++++++++++++++++++++++ 2 files changed, 81 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index c01564991a9f..17e0889d6aaa 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -904,6 +904,57 @@ #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_OFFSET 0x692A0
It would be good to append WRITE since we have a READ counterpart to be explicit.
+#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_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 diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index a2a4a159fcde..2b4cfb0b7324 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -222,4 +222,34 @@ struct hdcp2_dp_errata_stream_type { uint8_t 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
Is this a ballpark figure ? I couldn't get a specific timeout value from spec.
+#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_RXCAPS_VERSION_VAL 0x2
+#define HDCP_2_2_RX_CAPS_VERSION_VAL 0x02
The above 2 names are confusing. Both say RXCAPS_VERSION. Please rename them for clarity or drop one of them since they reflect same value, in case intention was to define some other field here.
+#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
2.7.4