drm/display/drm_dp_mst_helper.h

60  * struct drm_dp_mst_port - MST port
64  * @mcs: message capability status - DP 1.2 spec. Protected by
66  * @ddps: DisplayPort Device Plug Status - DP 1.2. Protected by
81  * @aux: i2c aux transport to talk to device connected to this port, protected
83  * @passthrough_aux: parent aux to which DSC pass-through requests should be
84  * sent, only set if DSC pass-through is possible.
97 	 * only the DP MST helpers should need to touch this
138 	struct drm_dp_aux aux; /* i2c bus for this port? */  member
146 	 * @cached_edid: for DP logical ports - make tiling work by ensuring
158 /* sideband msg header - not bit struct */
184  * struct drm_dp_mst_branch - MST branch device.
191  * @guid: guid for DP 1.2 branch device. port under this branch can be
201 	 * topology, only the DP MST helpers should need to touch this
221 	 * @destroy_next: linked-list entry used by
308 	/* Bit[23:16]- Stream Id */
311 	/* Bit[15]- Signed */
314 	/* Bit[10:8]- Stream Output Sink Type */
319 	/* Bit[12:11]- Stream Output CP Type */
323 	/* Bit[4]- Stream Authentication */
326 	/* Bit[3]- Stream Encryption */
329 	/* Bit[2]- Stream Repeater Function Present */
332 	/* Bit[1:0]- Stream State */
398 	u8 client_id[7];	/* 56-bit nonce */
484 /* msg has started transmitting on a slot - still on msgq */
486 /* msg has finished transmitting on a slot - removed from msgq only in slot */
488 /* msg has received a response - removed from slot */
513 	 * If provided MST core calls this callback from a poll-waiting loop
524  * struct drm_dp_mst_atomic_payload - Atomic state struct for an MST payload
549 	 * * Acquire the MST modesetting lock, and then wait for any pending MST-related commits to
563 	 * The number of timeslots allocated to this payload from the source DP Tx to
564 	 * the immediate downstream DP Rx
583  * struct drm_dp_mst_topology_state - DisplayPort MST topology atomic state
627  * struct drm_dp_mst_topology_mgr - DisplayPort MST manager
630  * There should be one instance of this for every MST capable DP connector
653 	 * @aux: AUX channel for the DP MST connector this topolgy mgr is
656 	struct drm_dp_aux *aux;  member
815 				 struct drm_device *dev, struct drm_dp_aux *aux,
821 bool drm_dp_read_mst_cap(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
874 ssize_t drm_dp_mst_dpcd_read(struct drm_dp_aux *aux,
876 ssize_t drm_dp_mst_dpcd_write(struct drm_dp_aux *aux,
942  * __drm_dp_mst_state_iter_get - private atomic state iterator function for
943  * macro-internal use
950  * @i: int iteration cursor, for macro-internal use
967 	struct __drm_private_objs_state *objs_state = &state->private_objs[i];  in __drm_dp_mst_state_iter_get()
969 	if (objs_state->ptr->funcs != &drm_dp_mst_topology_state_funcs)  in __drm_dp_mst_state_iter_get()
972 	*mgr = to_dp_mst_topology_mgr(objs_state->ptr);  in __drm_dp_mst_state_iter_get()
974 		*old_state = to_dp_mst_topology_state(objs_state->old_state);  in __drm_dp_mst_state_iter_get()
976 		*new_state = to_dp_mst_topology_state(objs_state->new_state);  in __drm_dp_mst_state_iter_get()
982  * for_each_oldnew_mst_mgr_in_state - iterate over all DP MST topology
990  * @__i: int iteration cursor, for macro-internal use
992  * This iterates over all DRM DP MST topology managers in an atomic update,
997 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
1001  * for_each_old_mst_mgr_in_state - iterate over all DP MST topology managers
1007  * @__i: int iteration cursor, for macro-internal use
1009  * This iterates over all DRM DP MST topology managers in an atomic update,
1014 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
1018  * for_each_new_mst_mgr_in_state - iterate over all DP MST topology managers
1024  * @__i: int iteration cursor, for macro-internal use
1026  * This iterates over all DRM DP MST topology managers in an atomic update,
1032 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \