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path: root/include/drm/drm_dp_mst_helper.h
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Diffstat (limited to 'include/drm/drm_dp_mst_helper.h')
-rw-r--r--include/drm/drm_dp_mst_helper.h72
1 files changed, 34 insertions, 38 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 3cde42b333c3..2d7c26592c05 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -157,9 +157,38 @@ struct drm_dp_mst_port {
*/
bool has_audio;
+ /**
+ * @fec_capable: bool indicating if FEC can be supported up to that
+ * point in the MST topology.
+ */
bool fec_capable;
};
+/* sideband msg header - not bit struct */
+struct drm_dp_sideband_msg_hdr {
+ u8 lct;
+ u8 lcr;
+ u8 rad[8];
+ bool broadcast;
+ bool path_msg;
+ u8 msg_len;
+ bool somt;
+ bool eomt;
+ bool seqno;
+};
+
+struct drm_dp_sideband_msg_rx {
+ u8 chunk[48];
+ u8 msg[256];
+ u8 curchunk_len;
+ u8 curchunk_idx; /* chunk we are parsing now */
+ u8 curchunk_hdrlen;
+ u8 curlen; /* total length of the msg */
+ bool have_somt;
+ bool have_eomt;
+ struct drm_dp_sideband_msg_hdr initial_hdr;
+};
+
/**
* struct drm_dp_mst_branch - MST branch device.
* @rad: Relative Address to talk to this branch device.
@@ -232,24 +261,16 @@ struct drm_dp_mst_branch {
int last_seqno;
bool link_address_sent;
+ /**
+ * @down_rep_recv: Message receiver state for down replies.
+ */
+ struct drm_dp_sideband_msg_rx down_rep_recv[2];
+
/* global unique identifier to identify branch devices */
u8 guid[16];
};
-/* sideband msg header - not bit struct */
-struct drm_dp_sideband_msg_hdr {
- u8 lct;
- u8 lcr;
- u8 rad[8];
- bool broadcast;
- bool path_msg;
- u8 msg_len;
- bool somt;
- bool eomt;
- bool seqno;
-};
-
struct drm_dp_nak_reply {
u8 guid[16];
u8 reason;
@@ -306,18 +327,6 @@ struct drm_dp_remote_i2c_write_ack_reply {
};
-struct drm_dp_sideband_msg_rx {
- u8 chunk[48];
- u8 msg[256];
- u8 curchunk_len;
- u8 curchunk_idx; /* chunk we are parsing now */
- u8 curchunk_hdrlen;
- u8 curlen; /* total length of the msg */
- bool have_somt;
- bool have_eomt;
- struct drm_dp_sideband_msg_hdr initial_hdr;
-};
-
#define DRM_DP_MAX_SDP_STREAMS 16
struct drm_dp_allocate_payload {
u8 port_number;
@@ -479,8 +488,6 @@ struct drm_dp_mst_topology_mgr;
struct drm_dp_mst_topology_cbs {
/* create a connector for a port */
struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
- void (*destroy_connector)(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_connector *connector);
};
#define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
@@ -556,10 +563,6 @@ struct drm_dp_mst_topology_mgr {
int conn_base_id;
/**
- * @down_rep_recv: Message receiver state for down replies.
- */
- struct drm_dp_sideband_msg_rx down_rep_recv;
- /**
* @up_req_recv: Message receiver state for up requests.
*/
struct drm_dp_sideband_msg_rx up_req_recv;
@@ -590,11 +593,6 @@ struct drm_dp_mst_topology_mgr {
bool payload_id_table_cleared : 1;
/**
- * @is_waiting_for_dwn_reply: whether we're waiting for a down reply.
- */
- bool is_waiting_for_dwn_reply : 1;
-
- /**
* @mst_primary: Pointer to the primary/first branch device.
*/
struct drm_dp_mst_branch *mst_primary;
@@ -734,8 +732,6 @@ drm_dp_mst_detect_port(struct drm_connector *connector,
struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_port *port);
-bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
- struct drm_dp_mst_port *port);
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);