drm/dp_helper: add defines for DP 1.2 and MST support. (v2)

This just adds the defines from the DP 1.2 spec, which we
will use later.

fix some DP MST to 1.2 MST

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index cfcacec5b89d..c8857e6159a5 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -37,6 +37,7 @@
  * eDP: Embedded DisplayPort version 1
  * DPI: DisplayPort Interoperability Guideline v1.1a
  * 1.2: DisplayPort 1.2
+ * MST: Multistream Transport - part of DP 1.2a
  *
  * 1.2 formally includes both eDP and DPI definitions.
  */
@@ -103,9 +104,14 @@
 #define DP_TRAINING_AUX_RD_INTERVAL         0x00e   /* XXX 1.2? */
 
 /* Multiple stream transport */
+#define DP_FAUX_CAP                         0x020   /* 1.2 */
+# define DP_FAUX_CAP_1                      (1 << 0)
+
 #define DP_MSTM_CAP                         0x021   /* 1.2 */
 # define DP_MST_CAP                         (1 << 0)
 
+#define DP_GUID                             0x030   /* 1.2 */
+
 #define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */
 # define DP_PSR_IS_SUPPORTED                1
 #define DP_PSR_CAPS                         0x071   /* XXX 1.2? */
@@ -221,6 +227,16 @@
 # define DP_PSR_CRC_VERIFICATION            (1 << 2)
 # define DP_PSR_FRAME_CAPTURE               (1 << 3)
 
+#define DP_ADAPTER_CTRL                     0x1a0
+# define DP_ADAPTER_CTRL_FORCE_LOAD_SENSE   (1 << 0)
+
+#define DP_BRANCH_DEVICE_CTRL               0x1a1
+# define DP_BRANCH_DEVICE_IRQ_HPD           (1 << 0)
+
+#define DP_PAYLOAD_ALLOCATE_SET             0x1c0
+#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT 0x1c1
+#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT 0x1c2
+
 #define DP_SINK_COUNT                       0x200
 /* prior to 1.2 bit 7 was reserved mbz */
 # define DP_GET_SINK_COUNT(x)               ((((x) & 0x80) >> 1) | ((x) & 0x3f))
@@ -230,6 +246,9 @@
 # define DP_REMOTE_CONTROL_COMMAND_PENDING  (1 << 0)
 # define DP_AUTOMATED_TEST_REQUEST          (1 << 1)
 # define DP_CP_IRQ                          (1 << 2)
+# define DP_MCCS_IRQ                        (1 << 3)
+# define DP_DOWN_REP_MSG_RDY                (1 << 4) /* 1.2 MST */
+# define DP_UP_REQ_MSG_RDY                  (1 << 5) /* 1.2 MST */
 # define DP_SINK_SPECIFIC_IRQ               (1 << 6)
 
 #define DP_LANE0_1_STATUS                   0x202
@@ -294,6 +313,13 @@
 #define DP_TEST_SINK                        0x270
 #define DP_TEST_SINK_START          (1 << 0)
 
+#define DP_PAYLOAD_TABLE_UPDATE_STATUS      0x2c0   /* 1.2 MST */
+# define DP_PAYLOAD_TABLE_UPDATED           (1 << 0)
+# define DP_PAYLOAD_ACT_HANDLED             (1 << 1)
+
+#define DP_VC_PAYLOAD_ID_SLOT_1             0x2c1   /* 1.2 MST */
+/* up to ID_SLOT_63 at 0x2ff */
+
 #define DP_SOURCE_OUI                       0x300
 #define DP_SINK_OUI                         0x400
 #define DP_BRANCH_OUI                       0x500
@@ -303,6 +329,21 @@
 # define DP_SET_POWER_D3                    0x2
 # define DP_SET_POWER_MASK                  0x3
 
+#define DP_SIDEBAND_MSG_DOWN_REQ_BASE       0x1000   /* 1.2 MST */
+#define DP_SIDEBAND_MSG_UP_REP_BASE         0x1200   /* 1.2 MST */
+#define DP_SIDEBAND_MSG_DOWN_REP_BASE       0x1400   /* 1.2 MST */
+#define DP_SIDEBAND_MSG_UP_REQ_BASE         0x1600   /* 1.2 MST */
+
+#define DP_SINK_COUNT_ESI                   0x2002   /* 1.2 */
+/* 0-5 sink count */
+# define DP_SINK_COUNT_CP_READY             (1 << 6)
+
+#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0   0x2003   /* 1.2 */
+
+#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI1   0x2004   /* 1.2 */
+
+#define DP_LINK_SERVICE_IRQ_VECTOR_ESI0     0x2005   /* 1.2 */
+
 #define DP_PSR_ERROR_STATUS                 0x2006  /* XXX 1.2? */
 # define DP_PSR_LINK_CRC_ERROR              (1 << 0)
 # define DP_PSR_RFB_STORAGE_ERROR           (1 << 1)
@@ -319,6 +360,43 @@
 # define DP_PSR_SINK_INTERNAL_ERROR         7
 # define DP_PSR_SINK_STATE_MASK             0x07
 
+/* DP 1.2 Sideband message defines */
+/* peer device type - DP 1.2a Table 2-92 */
+#define DP_PEER_DEVICE_NONE             0x0
+#define DP_PEER_DEVICE_SOURCE_OR_SST    0x1
+#define DP_PEER_DEVICE_MST_BRANCHING    0x2
+#define DP_PEER_DEVICE_SST_SINK         0x3
+#define DP_PEER_DEVICE_DP_LEGACY_CONV   0x4
+
+/* DP 1.2 MST sideband request names DP 1.2a Table 2-80 */
+#define DP_LINK_ADDRESS                 0x01
+#define DP_CONNECTION_STATUS_NOTIFY     0x02
+#define DP_ENUM_PATH_RESOURCES          0x10
+#define DP_ALLOCATE_PAYLOAD             0x11
+#define DP_QUERY_PAYLOAD                0x12
+#define DP_RESOURCE_STATUS_NOTIFY       0x13
+#define DP_CLEAR_PAYLOAD_ID_TABLE       0x14
+#define DP_REMOTE_DPCD_READ             0x20
+#define DP_REMOTE_DPCD_WRITE            0x21
+#define DP_REMOTE_I2C_READ              0x22
+#define DP_REMOTE_I2C_WRITE             0x23
+#define DP_POWER_UP_PHY                 0x24
+#define DP_POWER_DOWN_PHY               0x25
+#define DP_SINK_EVENT_NOTIFY            0x30
+#define DP_QUERY_STREAM_ENC_STATUS      0x38
+
+/* DP 1.2 MST sideband nak reasons - table 2.84 */
+#define DP_NAK_WRITE_FAILURE            0x01
+#define DP_NAK_INVALID_READ             0x02
+#define DP_NAK_CRC_FAILURE              0x03
+#define DP_NAK_BAD_PARAM                0x04
+#define DP_NAK_DEFER                    0x05
+#define DP_NAK_LINK_FAILURE             0x06
+#define DP_NAK_NO_RESOURCES             0x07
+#define DP_NAK_DPCD_FAIL                0x08
+#define DP_NAK_I2C_NAK                  0x09
+#define DP_NAK_ALLOCATE_FAIL            0x0a
+
 #define MODE_I2C_START  1
 #define MODE_I2C_WRITE  2
 #define MODE_I2C_READ   4