[PATCH 2/2] drm/dp: add a number of DP 2.0 DPCD definitions
Jani Nikula
jani.nikula at intel.com
Fri Sep 18 11:40:17 UTC 2020
Prepare for future with DP 2.0 DPCD definitions, with a couple of
related drive-by cleanups. No functional changes.
v2: Send the version that actually builds.
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
include/drm/drm_dp_helper.h | 52 ++++++++++++++++++++++++++++++++-----
1 file changed, 45 insertions(+), 7 deletions(-)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 388083b4716b..e144b4b9d79a 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -125,6 +125,7 @@ struct drm_device;
#define DP_MAX_DOWNSPREAD 0x003
# define DP_MAX_DOWNSPREAD_0_5 (1 << 0)
+# define DP_STREAM_REGENERATION_STATUS_CAP (1 << 1) /* 2.0 */
# define DP_NO_AUX_HANDSHAKE_LINK_TRAINING (1 << 6)
# define DP_TPS4_SUPPORTED (1 << 7)
@@ -142,6 +143,7 @@ struct drm_device;
#define DP_MAIN_LINK_CHANNEL_CODING 0x006
# define DP_CAP_ANSI_8B10B (1 << 0)
+# define DP_CAP_ANSI_128B132B (1 << 1) /* 2.0 */
#define DP_DOWN_STREAM_PORT_COUNT 0x007
# define DP_PORT_COUNT_MASK 0x0f
@@ -185,8 +187,14 @@ struct drm_device;
#define DP_FAUX_CAP 0x020 /* 1.2 */
# define DP_FAUX_CAP_1 (1 << 0)
+#define DP_SINK_VIDEO_FALLBACK_FORMATS 0x020 /* 2.0 */
+# define DP_FALLBACK_1024x768_60HZ_24BPP (1 << 0)
+# define DP_FALLBACK_1280x720_60HZ_24BPP (1 << 1)
+# define DP_FALLBACK_1920x1080_60HZ_24BPP (1 << 2)
+
#define DP_MSTM_CAP 0x021 /* 1.2 */
# define DP_MST_CAP (1 << 0)
+# define DP_SINGLE_STREAM_SIDEBAND_MSG (1 << 1) /* 2.0 */
#define DP_NUMBER_OF_AUDIO_ENDPOINTS 0x022 /* 1.2 */
@@ -434,6 +442,9 @@ struct drm_device;
# define DP_LINK_BW_2_7 0x0a
# define DP_LINK_BW_5_4 0x14 /* 1.2 */
# define DP_LINK_BW_8_1 0x1e /* 1.4 */
+# define DP_LINK_BW_10 0x01 /* 2.0 128b/132b Link Layer */
+# define DP_LINK_BW_13_5 0x04 /* 2.0 128b/132b Link Layer */
+# define DP_LINK_BW_20 0x02 /* 2.0 128b/132b Link Layer */
#define DP_LANE_COUNT_SET 0x101
# define DP_LANE_COUNT_MASK 0x0f
@@ -485,12 +496,15 @@ struct drm_device;
# define DP_TRAIN_PRE_EMPHASIS_SHIFT 3
# define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED (1 << 5)
+# define DP_TX_FFE_PRESET_VALUE_MASK (0xf << 0) /* 2.0 128b/132b Link Layer */
+
#define DP_DOWNSPREAD_CTRL 0x107
# define DP_SPREAD_AMP_0_5 (1 << 4)
# define DP_MSA_TIMING_PAR_IGNORE_EN (1 << 7) /* eDP */
#define DP_MAIN_LINK_CHANNEL_CODING_SET 0x108
# define DP_SET_ANSI_8B10B (1 << 0)
+# define DP_SET_ANSI_128B132B (1 << 1)
#define DP_I2C_SPEED_CONTROL_STATUS 0x109 /* DPI */
/* bitmask as for DP_I2C_SPEED_CAP */
@@ -509,8 +523,19 @@ struct drm_device;
# define DP_LINK_QUAL_PATTERN_ERROR_RATE 2
# define DP_LINK_QUAL_PATTERN_PRBS7 3
# define DP_LINK_QUAL_PATTERN_80BIT_CUSTOM 4
-# define DP_LINK_QUAL_PATTERN_HBR2_EYE 5
-# define DP_LINK_QUAL_PATTERN_MASK 7
+# define DP_LINK_QUAL_PATTERN_CP2520_PAT_1 5
+# define DP_LINK_QUAL_PATTERN_CP2520_PAT_2 6
+# define DP_LINK_QUAL_PATTERN_CP2520_PAT_3 7
+/* DP 2.0 UHBR10, UHBR13.5, UHBR20 */
+# define DP_LINK_QUAL_PATTERN_128B132B_TPS1 0x08
+# define DP_LINK_QUAL_PATTERN_128B132B_TPS2 0x10
+# define DP_LINK_QUAL_PATTERN_PRSBS9 0x18
+# define DP_LINK_QUAL_PATTERN_PRSBS11 0x20
+# define DP_LINK_QUAL_PATTERN_PRSBS15 0x28
+# define DP_LINK_QUAL_PATTERN_PRSBS23 0x30
+# define DP_LINK_QUAL_PATTERN_PRSBS31 0x38
+# define DP_LINK_QUAL_PATTERN_CUSTOM 0x40
+# define DP_LINK_QUAL_PATTERN_SQUARE 0x48
#define DP_TRAINING_LANE0_1_SET2 0x10f
#define DP_TRAINING_LANE2_3_SET2 0x110
@@ -613,9 +638,9 @@ struct drm_device;
#define DP_LINK_STATUS_UPDATED (1 << 7)
#define DP_SINK_STATUS 0x205
-
-#define DP_RECEIVE_PORT_0_STATUS (1 << 0)
-#define DP_RECEIVE_PORT_1_STATUS (1 << 1)
+# define DP_RECEIVE_PORT_0_STATUS (1 << 0)
+# define DP_RECEIVE_PORT_1_STATUS (1 << 1)
+# define DP_STREAM_REGENERATION_STATUS (1 << 2) /* 2.0 */
#define DP_ADJUST_REQUEST_LANE0_1 0x206
#define DP_ADJUST_REQUEST_LANE2_3 0x207
@@ -628,6 +653,12 @@ struct drm_device;
# define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK 0xc0
# define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT 6
+/* DP 2.0 128b/132b Link Layer */
+# define DP_ADJUST_TX_FFE_PRESET_LANE0_MASK (0xf << 0)
+# define DP_ADJUST_TX_FFE_PRESET_LANE0_SHIFT 0
+# define DP_ADJUST_TX_FFE_PRESET_LANE1_MASK (0xf << 4)
+# define DP_ADJUST_TX_FFE_PRESET_LANE1_SHIFT 4
+
#define DP_ADJUST_REQUEST_POST_CURSOR2 0x20c
# define DP_ADJUST_POST_CURSOR2_LANE0_MASK 0x03
# define DP_ADJUST_POST_CURSOR2_LANE0_SHIFT 0
@@ -945,9 +976,8 @@ struct drm_device;
#define DP_LANE_ALIGN_STATUS_UPDATED_ESI 0x200e /* status same as 0x204 */
#define DP_SINK_STATUS_ESI 0x200f /* status same as 0x205 */
-/* Extended Receiver Capability */
+/* Extended Receiver Capability: See DP_DPCD_REV for definitions */
#define DP_DP13_DPCD_REV 0x2200
-#define DP_DP13_MAX_LINK_RATE 0x2201
#define DP_DPRX_FEATURE_ENUMERATION_LIST 0x2210 /* DP 1.3 */
# define DP_GTC_CAP (1 << 0) /* DP 1.3 */
@@ -959,6 +989,14 @@ struct drm_device;
# define DP_VSC_EXT_CEA_SDP_SUPPORTED (1 << 6) /* DP 1.4 */
# define DP_VSC_EXT_CEA_SDP_CHAINING_SUPPORTED (1 << 7) /* DP 1.4 */
+#define DP_128B132B_SUPPORTED_LINK_RATES 0x2215 /* 2.0 */
+# define DP_UHBR10 (1 << 0)
+# define DP_UHBR20 (1 << 1)
+# define DP_UHBR13_5 (1 << 2)
+
+#define DP_128B132B_TRAINING_AUX_RD_INTERVAL 0x2216 /* 2.0 */
+# define DP_128B132B_TRAINING_AUX_RD_INTERVAL_MASK 0x7f
+
/* Protocol Converter Extension */
/* HDMI CEC tunneling over AUX DP 1.3 section 5.3.3.3.1 DPCD 1.4+ */
#define DP_CEC_TUNNELING_CAPABILITY 0x3000
--
2.20.1
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