diff options
Diffstat (limited to 'include/drm/drm_dp_mst_helper.h')
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 86 |
1 files changed, 37 insertions, 49 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 3cde42b333c3..9e1ffcd7cb68 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -157,19 +157,45 @@ 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. * @lct: Link count total to talk to this branch device. * @num_ports: number of ports on the branch. - * @msg_slots: one bit per transmitted msg slot. * @port_parent: pointer to the port parent, NULL if toplevel. * @mgr: topology manager for this branch device. - * @tx_slots: transmission slots for this device. - * @last_seqno: last sequence number used to talk to this. * @link_address_sent: if a link address message has been sent to this device yet. * @guid: guid for DP 1.2 branch device. port under this branch can be * identified by port #. @@ -210,7 +236,6 @@ struct drm_dp_mst_branch { u8 lct; int num_ports; - int msg_slots; /** * @ports: the list of ports on this branch device. This should be * considered protected for reading by &drm_dp_mst_topology_mgr.lock. @@ -223,13 +248,9 @@ struct drm_dp_mst_branch { */ struct list_head ports; - /* list of tx ops queue for this port */ struct drm_dp_mst_port *port_parent; struct drm_dp_mst_topology_mgr *mgr; - /* slots are protected by mstb->mgr->qlock */ - struct drm_dp_sideband_msg_tx *tx_slots[2]; - int last_seqno; bool link_address_sent; /* global unique identifier to identify branch devices */ @@ -237,19 +258,6 @@ struct drm_dp_mst_branch { }; -/* 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 +314,6 @@ 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 +475,6 @@ 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) @@ -556,15 +550,17 @@ 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; /** + * @down_rep_recv: Message receiver state for replies to down + * requests. + */ + struct drm_dp_sideband_msg_rx down_rep_recv; + + /** * @lock: protects @mst_state, @mst_primary, @dpcd, and * @payload_id_table_cleared. */ @@ -590,11 +586,6 @@ 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; @@ -618,13 +609,12 @@ struct drm_dp_mst_topology_mgr { const struct drm_private_state_funcs *funcs; /** - * @qlock: protects @tx_msg_downq, the &drm_dp_mst_branch.txslost and - * &drm_dp_sideband_msg_tx.state once they are queued + * @qlock: protects @tx_msg_downq and &drm_dp_sideband_msg_tx.state */ struct mutex qlock; /** - * @tx_msg_downq: List of pending down replies. + * @tx_msg_downq: List of pending down requests */ struct list_head tx_msg_downq; @@ -734,8 +724,6 @@ 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); |