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.
88  * @mgr: topology manager this port lives under.
91  * in the MST topology.
95 	 * @topology_kref: refcount for this port's lifetime in the topology,
109 	 * @topology_ref_history: A history of each topology
137 	struct drm_dp_aux aux; /* i2c bus for this port? */
145 	 * @cached_edid: for DP logical ports - make tiling work by ensuring
152 	 * point in the MST topology.
157 /* sideband msg header - not bit struct */
183  * struct drm_dp_mst_branch - MST branch device.
188  * @mgr: topology manager for this branch device.
200 	 * topology, only the DP MST helpers should need to touch this
213 	 * @topology_ref_history: A history of each topology
220 	 * @destroy_next: linked-list entry used by
314 	/* Bit[23:16]- Stream Id */
317 	/* Bit[15]- Signed */
320 	/* Bit[10:8]- Stream Output Sink Type */
325 	/* Bit[12:11]- Stream Output CP Type */
329 	/* Bit[4]- Stream Authentication */
332 	/* Bit[3]- Stream Encryption */
335 	/* Bit[2]- Stream Repeater Function Present */
338 	/* Bit[1:0]- Stream State */
404 	u8 client_id[7];	/* 56-bit nonce */
490 /* msg has started transmitting on a slot - still on msgq */
492 /* msg has finished transmitting on a slot - removed from msgq only in slot */
494 /* msg has received a response - removed from slot */
519 	 * If provided MST core calls this callback from a poll-waiting loop
530  * struct drm_dp_mst_atomic_payload - Atomic state struct for an MST payload
546 	 * protected by the MST helpers ensuring that async commits operating on the given topology
555 	 * * Acquire the MST modesetting lock, and then wait for any pending MST-related commits to
589  * struct drm_dp_mst_topology_state - DisplayPort MST topology atomic state
597 	/** @mgr: The topology manager */
601 	 * @pending_crtc_mask: A bitmask of all CRTCs this topology state touches, drivers may
606 	 * @commit_deps: A list of all CRTC commits affecting this topology, this field isn't
618 	/** @total_avail_slots: The total number of slots this topology can handle (63 or 64) */
620 	/** @start_slot: The first usable time slot in this topology (1 or 0) */
624 	 * @pbn_div: The current PBN divisor for this topology. The driver is expected to fill this
633  * struct drm_dp_mst_topology_mgr - DisplayPort MST manager
635  * This struct represents the toplevel displayport MST topology manager.
646 	 * @dev: device pointer for adding i2c devices etc.
693 	 * while they update the topology.
711 	 * receiver state must be reset, after the topology manager got
802 	 * @up_req_list: List of pending up requests from the topology that
812 	 * topology. Needed to avoid blocking hotplug handling and sideband
835  * enum drm_dp_mst_mode - sink's MST mode capability
968 	return port->port_num >= DP_MST_LOGICAL_PORT_0;  in drm_dp_mst_port_is_logical()
983  * __drm_dp_mst_state_iter_get - private atomic state iterator function for
984  * macro-internal use
991  * @i: int iteration cursor, for macro-internal use
1008 	struct __drm_private_objs_state *objs_state = &state->private_objs[i];  in __drm_dp_mst_state_iter_get()
1010 	if (objs_state->ptr->funcs != &drm_dp_mst_topology_state_funcs)  in __drm_dp_mst_state_iter_get()
1013 	*mgr = to_dp_mst_topology_mgr(objs_state->ptr);  in __drm_dp_mst_state_iter_get()
1015 		*old_state = to_dp_mst_topology_state(objs_state->old_state);  in __drm_dp_mst_state_iter_get()
1017 		*new_state = to_dp_mst_topology_state(objs_state->new_state);  in __drm_dp_mst_state_iter_get()
1023  * for_each_oldnew_mst_mgr_in_state - iterate over all DP MST topology
1031  * @__i: int iteration cursor, for macro-internal use
1033  * This iterates over all DRM DP MST topology managers in an atomic update,
1038 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
1042  * for_each_old_mst_mgr_in_state - iterate over all DP MST topology managers
1048  * @__i: int iteration cursor, for macro-internal use
1050  * This iterates over all DRM DP MST topology managers in an atomic update,
1055 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
1059  * for_each_new_mst_mgr_in_state - iterate over all DP MST topology managers
1065  * @__i: int iteration cursor, for macro-internal use
1067  * This iterates over all DRM DP MST topology managers in an atomic update,
1073 	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \