diff options
Diffstat (limited to 'include/drm/drm_dp_mst_helper.h')
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 36 |
1 files changed, 16 insertions, 20 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 5340099741ae..fdb47051d549 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -44,8 +44,6 @@ struct drm_dp_vcpi { /** * struct drm_dp_mst_port - MST port * @kref: reference count for this port. - * @guid_valid: for DP 1.2 devices if we have validated the GUID. - * @guid: guid for DP 1.2 device on this port. * @port_num: port number * @input: if this port is an input port. * @mcs: message capability status - DP 1.2 spec. @@ -70,10 +68,6 @@ struct drm_dp_vcpi { struct drm_dp_mst_port { struct kref kref; - /* if dpcd 1.2 device is on this port - its GUID info */ - bool guid_valid; - u8 guid[16]; - u8 port_num; bool input; bool mcs; @@ -94,6 +88,7 @@ struct drm_dp_mst_port { struct drm_dp_mst_topology_mgr *mgr; struct edid *cached_edid; /* for DP logical ports - make tiling work */ + bool has_audio; }; /** @@ -109,10 +104,12 @@ struct drm_dp_mst_port { * @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 #. * * This structure represents an MST branch device, there is one - * primary branch device at the root, along with any others connected - * to downstream ports + * primary branch device at the root, along with any other branches connected + * to downstream port of parent branches. */ struct drm_dp_mst_branch { struct kref kref; @@ -131,6 +128,9 @@ struct drm_dp_mst_branch { struct drm_dp_sideband_msg_tx *tx_slots[2]; int last_seqno; bool link_address_sent; + + /* global unique identifier to identify branch devices */ + u8 guid[16]; }; @@ -215,13 +215,13 @@ struct drm_dp_sideband_msg_rx { struct drm_dp_sideband_msg_hdr initial_hdr; }; - +#define DRM_DP_MAX_SDP_STREAMS 16 struct drm_dp_allocate_payload { u8 port_number; u8 number_sdp_streams; u8 vcpi; u16 pbn; - u8 sdp_stream_sink[8]; + u8 sdp_stream_sink[DRM_DP_MAX_SDP_STREAMS]; }; struct drm_dp_allocate_payload_ack_reply { @@ -405,11 +405,9 @@ struct drm_dp_payload { * @conn_base_id: DRM connector ID this mgr is connected to. * @down_rep_recv: msg receiver state for down replies. * @up_req_recv: msg receiver state for up requests. - * @lock: protects mst state, primary, guid, dpcd. + * @lock: protects mst state, primary, dpcd. * @mst_state: if this manager is enabled for an MST capable port. * @mst_primary: pointer to the primary branch device. - * @guid_valid: GUID valid for the primary branch device. - * @guid: GUID for primary port. * @dpcd: cache of DPCD for primary port. * @pbn_div: PBN to slots divisor. * @@ -420,7 +418,7 @@ struct drm_dp_payload { struct drm_dp_mst_topology_mgr { struct device *dev; - struct drm_dp_mst_topology_cbs *cbs; + const struct drm_dp_mst_topology_cbs *cbs; int max_dpcd_transaction_bytes; struct drm_dp_aux *aux; /* auxch for this topology mgr to use */ int max_payloads; @@ -431,13 +429,11 @@ struct drm_dp_mst_topology_mgr { struct drm_dp_sideband_msg_rx up_req_recv; /* pointer to info about the initial MST device */ - struct mutex lock; /* protects mst_state + primary + guid + dpcd */ + struct mutex lock; /* protects mst_state + primary + dpcd */ bool mst_state; struct drm_dp_mst_branch *mst_primary; - /* primary MST device GUID */ - bool guid_valid; - u8 guid[16]; + u8 dpcd[DP_RECEIVER_CAP_SIZE]; u8 sink_count; int pbn_div; @@ -450,9 +446,7 @@ struct drm_dp_mst_topology_mgr { the mstb tx_slots and txmsg->state once they are queued */ struct mutex qlock; struct list_head tx_msg_downq; - struct list_head tx_msg_upq; bool tx_down_in_progress; - bool tx_up_in_progress; /* payload info + lock for it */ struct mutex payload_lock; @@ -484,6 +478,8 @@ int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handl enum drm_connector_status 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); |
