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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-25 22:48:26 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-25 22:48:26 +0300
commit4971f090aa7f6ce5daa094ce4334f6618f93a7eb (patch)
tree45d75782b7dedbec76a3ab82d2769f7707668071 /include/drm/drm_hdcp.h
parentc76cd634eb5bfd497617ea224a54a03b545c8c4d (diff)
parent2a3c83f5fe0770d13bbb71b23674886ff4111f44 (diff)
downloadlinux-4971f090aa7f6ce5daa094ce4334f6618f93a7eb.tar.xz
Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "Core: - shared fencing staging removal - drop transactional atomic helpers and move helpers to new location - DP/MST atomic cleanup - Leasing cleanups and drop EXPORT_SYMBOL - Convert drivers to atomic helpers and generic fbdev. - removed deprecated obj_ref/unref in favour of get/put - Improve dumb callback documentation - MODESET_LOCK_BEGIN/END helpers panels: - CDTech panels, Banana Pi Panel, DLC1010GIG, - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA, - Himax HX8357D, simulated RTSM AEMv8. - GPD Win2 panel - AUO G101EVN010 vgem: - render node support ttm: - move global init out of drivers - fix LRU handling for ghost objects - Support for simultaneous submissions to multiple engines scheduler: - timeout/fault handling changes to help GPU recovery - helpers for hw with preemption support i915: - Scaler/Watermark fixes - DP MST + powerwell fixes - PSR fixes - Break long get/put shmemfs pages - Icelake fixes - Icelake DSI video mode enablement - Engine workaround improvements amdgpu: - freesync support - GPU reset enabled on CI, VI, SOC15 dGPUs - ABM support in DC - KFD support for vega12/polaris12 - SDMA paging queue on vega - More amdkfd code sharing - DCC scanout on GFX9 - DC kerneldoc - Updated SMU firmware for GFX8 chips - XGMI PSP + hive reset support - GPU reset - DC trace support - Powerplay updates for newer Polaris - Cursor plane update fast path - kfd dma-buf support virtio-gpu: - add EDID support vmwgfx: - pageflip with damage support nouveau: - Initial Turing TU104/TU106 modesetting support msm: - a2xx gpu support for apq8060 and imx5 - a2xx gpummu support - mdp4 display support for apq8060 - DPU fixes and cleanups - enhanced profiling support - debug object naming interface - get_iova/page pinning decoupling tegra: - Tegra194 host1x, VIC and display support enabled - Audio over HDMI for Tegra186 and Tegra194 exynos: - DMA/IOMMU refactoring - plane alpha + blend mode support - Color format fixes for mixer driver rcar-du: - R8A7744 and R8A77470 support - R8A77965 LVDS support imx: - fbdev emulation fix - multi-tiled scalling fixes - SPDX identifiers rockchip - dw_hdmi support - dw-mipi-dsi + dual dsi support - mailbox read size fix qxl: - fix cursor pinning vc4: - YUV support (scaling + cursor) v3d: - enable TFU (Texture Formatting Unit) mali-dp: - add support for linear tiled formats sun4i: - Display Engine 3 support - H6 DE3 mixer 0 support - H6 display engine support - dw-hdmi support - H6 HDMI phy support - implicit fence waiting - BGRX8888 support meson: - Overlay plane support - implicit fence waiting - HDMI 1.4 4k modes bridge: - i2c fixes for sii902x" * tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits) drm/amd/display: Add fast path for cursor plane updates drm/amdgpu: Enable GPU recovery by default for CI drm/amd/display: Fix duplicating scaling/underscan connector state drm/amd/display: Fix unintialized max_bpc state values Revert "drm/amd/display: Set RMX_ASPECT as default" drm/amdgpu: Fix stub function name drm/msm/dpu: Fix clock issue after bind failure drm/msm/dpu: Clean up dpu_media_info.h static inline functions drm/msm/dpu: Further cleanups for static inline functions drm/msm/dpu: Cleanup the debugfs functions drm/msm/dpu: Remove dpu_irq and unused functions drm/msm: Make irq_postinstall optional drm/msm/dpu: Cleanup callers of dpu_hw_blk_init drm/msm/dpu: Remove unused functions drm/msm/dpu: Remove dpu_crtc_is_enabled() drm/msm/dpu: Remove dpu_crtc_get_mixer_height drm/msm/dpu: Remove dpu_dbg drm/msm: dpu: Remove crtc_lock drm/msm: dpu: Remove vblank_requested flag from dpu_crtc drm/msm: dpu: Separate crtc assignment from vblank enable ...
Diffstat (limited to 'include/drm/drm_hdcp.h')
-rw-r--r--include/drm/drm_hdcp.h212
1 files changed, 212 insertions, 0 deletions
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index 98e63d870139..a6de09c5e47f 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -38,4 +38,216 @@
#define DRM_HDCP_DDC_BSTATUS 0x41
#define DRM_HDCP_DDC_KSV_FIFO 0x43
+#define DRM_HDCP_1_4_SRM_ID 0x8
+#define DRM_HDCP_1_4_VRL_LENGTH_SIZE 3
+#define DRM_HDCP_1_4_DCP_SIG_SIZE 40
+
+/* Protocol message definition for HDCP2.2 specification */
+/*
+ * Protected content streams are classified into 2 types:
+ * - Type0: Can be transmitted with HDCP 1.4+
+ * - Type1: Can be transmitted with HDCP 2.2+
+ */
+#define HDCP_STREAM_TYPE0 0x00
+#define HDCP_STREAM_TYPE1 0x01
+
+/* HDCP2.2 Msg IDs */
+#define HDCP_2_2_NULL_MSG 1
+#define HDCP_2_2_AKE_INIT 2
+#define HDCP_2_2_AKE_SEND_CERT 3
+#define HDCP_2_2_AKE_NO_STORED_KM 4
+#define HDCP_2_2_AKE_STORED_KM 5
+#define HDCP_2_2_AKE_SEND_HPRIME 7
+#define HDCP_2_2_AKE_SEND_PAIRING_INFO 8
+#define HDCP_2_2_LC_INIT 9
+#define HDCP_2_2_LC_SEND_LPRIME 10
+#define HDCP_2_2_SKE_SEND_EKS 11
+#define HDCP_2_2_REP_SEND_RECVID_LIST 12
+#define HDCP_2_2_REP_SEND_ACK 15
+#define HDCP_2_2_REP_STREAM_MANAGE 16
+#define HDCP_2_2_REP_STREAM_READY 17
+#define HDCP_2_2_ERRATA_DP_STREAM_TYPE 50
+
+#define HDCP_2_2_RTX_LEN 8
+#define HDCP_2_2_RRX_LEN 8
+
+#define HDCP_2_2_K_PUB_RX_MOD_N_LEN 128
+#define HDCP_2_2_K_PUB_RX_EXP_E_LEN 3
+#define HDCP_2_2_K_PUB_RX_LEN (HDCP_2_2_K_PUB_RX_MOD_N_LEN + \
+ HDCP_2_2_K_PUB_RX_EXP_E_LEN)
+
+#define HDCP_2_2_DCP_LLC_SIG_LEN 384
+
+#define HDCP_2_2_E_KPUB_KM_LEN 128
+#define HDCP_2_2_E_KH_KM_M_LEN (16 + 16)
+#define HDCP_2_2_H_PRIME_LEN 32
+#define HDCP_2_2_E_KH_KM_LEN 16
+#define HDCP_2_2_RN_LEN 8
+#define HDCP_2_2_L_PRIME_LEN 32
+#define HDCP_2_2_E_DKEY_KS_LEN 16
+#define HDCP_2_2_RIV_LEN 8
+#define HDCP_2_2_SEQ_NUM_LEN 3
+#define HDCP_2_2_V_PRIME_HALF_LEN (HDCP_2_2_L_PRIME_LEN / 2)
+#define HDCP_2_2_RECEIVER_ID_LEN DRM_HDCP_KSV_LEN
+#define HDCP_2_2_MAX_DEVICE_COUNT 31
+#define HDCP_2_2_RECEIVER_IDS_MAX_LEN (HDCP_2_2_RECEIVER_ID_LEN * \
+ HDCP_2_2_MAX_DEVICE_COUNT)
+#define HDCP_2_2_MPRIME_LEN 32
+
+/* Following Macros take a byte at a time for bit(s) masking */
+/*
+ * TODO: This has to be changed for DP MST, as multiple stream on
+ * same port is possible.
+ * For HDCP2.2 on HDMI and DP SST this value is always 1.
+ */
+#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT 1
+#define HDCP_2_2_TXCAP_MASK_LEN 2
+#define HDCP_2_2_RXCAPS_LEN 3
+#define HDCP_2_2_RX_REPEATER(x) ((x) & BIT(0))
+#define HDCP_2_2_DP_HDCP_CAPABLE(x) ((x) & BIT(1))
+#define HDCP_2_2_RXINFO_LEN 2
+
+/* HDCP1.x compliant device in downstream */
+#define HDCP_2_2_HDCP1_DEVICE_CONNECTED(x) ((x) & BIT(0))
+
+/* HDCP2.0 Compliant repeater in downstream */
+#define HDCP_2_2_HDCP_2_0_REP_CONNECTED(x) ((x) & BIT(1))
+#define HDCP_2_2_MAX_CASCADE_EXCEEDED(x) ((x) & BIT(2))
+#define HDCP_2_2_MAX_DEVS_EXCEEDED(x) ((x) & BIT(3))
+#define HDCP_2_2_DEV_COUNT_LO(x) (((x) & (0xF << 4)) >> 4)
+#define HDCP_2_2_DEV_COUNT_HI(x) ((x) & BIT(0))
+#define HDCP_2_2_DEPTH(x) (((x) & (0x7 << 1)) >> 1)
+
+struct hdcp2_cert_rx {
+ u8 receiver_id[HDCP_2_2_RECEIVER_ID_LEN];
+ u8 kpub_rx[HDCP_2_2_K_PUB_RX_LEN];
+ u8 reserved[2];
+ u8 dcp_signature[HDCP_2_2_DCP_LLC_SIG_LEN];
+} __packed;
+
+struct hdcp2_streamid_type {
+ u8 stream_id;
+ u8 stream_type;
+} __packed;
+
+/*
+ * The TxCaps field specified in the HDCP HDMI, DP specs
+ * This field is big endian as specified in the errata.
+ */
+struct hdcp2_tx_caps {
+ /* Transmitter must set this to 0x2 */
+ u8 version;
+
+ /* Reserved for HDCP and DP Spec. Read as Zero */
+ u8 tx_cap_mask[HDCP_2_2_TXCAP_MASK_LEN];
+} __packed;
+
+/* Main structures for HDCP2.2 protocol communication */
+struct hdcp2_ake_init {
+ u8 msg_id;
+ u8 r_tx[HDCP_2_2_RTX_LEN];
+ struct hdcp2_tx_caps tx_caps;
+} __packed;
+
+struct hdcp2_ake_send_cert {
+ u8 msg_id;
+ struct hdcp2_cert_rx cert_rx;
+ u8 r_rx[HDCP_2_2_RRX_LEN];
+ u8 rx_caps[HDCP_2_2_RXCAPS_LEN];
+} __packed;
+
+struct hdcp2_ake_no_stored_km {
+ u8 msg_id;
+ u8 e_kpub_km[HDCP_2_2_E_KPUB_KM_LEN];
+} __packed;
+
+struct hdcp2_ake_stored_km {
+ u8 msg_id;
+ u8 e_kh_km_m[HDCP_2_2_E_KH_KM_M_LEN];
+} __packed;
+
+struct hdcp2_ake_send_hprime {
+ u8 msg_id;
+ u8 h_prime[HDCP_2_2_H_PRIME_LEN];
+} __packed;
+
+struct hdcp2_ake_send_pairing_info {
+ u8 msg_id;
+ u8 e_kh_km[HDCP_2_2_E_KH_KM_LEN];
+} __packed;
+
+struct hdcp2_lc_init {
+ u8 msg_id;
+ u8 r_n[HDCP_2_2_RN_LEN];
+} __packed;
+
+struct hdcp2_lc_send_lprime {
+ u8 msg_id;
+ u8 l_prime[HDCP_2_2_L_PRIME_LEN];
+} __packed;
+
+struct hdcp2_ske_send_eks {
+ u8 msg_id;
+ u8 e_dkey_ks[HDCP_2_2_E_DKEY_KS_LEN];
+ u8 riv[HDCP_2_2_RIV_LEN];
+} __packed;
+
+struct hdcp2_rep_send_receiverid_list {
+ u8 msg_id;
+ u8 rx_info[HDCP_2_2_RXINFO_LEN];
+ u8 seq_num_v[HDCP_2_2_SEQ_NUM_LEN];
+ u8 v_prime[HDCP_2_2_V_PRIME_HALF_LEN];
+ u8 receiver_ids[HDCP_2_2_RECEIVER_IDS_MAX_LEN];
+} __packed;
+
+struct hdcp2_rep_send_ack {
+ u8 msg_id;
+ u8 v[HDCP_2_2_V_PRIME_HALF_LEN];
+} __packed;
+
+struct hdcp2_rep_stream_manage {
+ u8 msg_id;
+ u8 seq_num_m[HDCP_2_2_SEQ_NUM_LEN];
+ __be16 k;
+ struct hdcp2_streamid_type streams[HDCP_2_2_MAX_CONTENT_STREAMS_CNT];
+} __packed;
+
+struct hdcp2_rep_stream_ready {
+ u8 msg_id;
+ u8 m_prime[HDCP_2_2_MPRIME_LEN];
+} __packed;
+
+struct hdcp2_dp_errata_stream_type {
+ u8 msg_id;
+ 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