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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_encoder.h')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_encoder.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
new file mode 100644
index 000000000..b72e5783a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_encoder.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2008 Maarten Maathuis.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __NOUVEAU_ENCODER_H__
+#define __NOUVEAU_ENCODER_H__
+#include <nvif/outp.h>
+#include <subdev/bios/dcb.h>
+
+#include <drm/display/drm_dp_helper.h>
+#include <drm/display/drm_dp_mst_helper.h>
+#include <drm/drm_encoder_slave.h>
+
+#include "dispnv04/disp.h"
+
+struct nv50_head_atom;
+struct nouveau_connector;
+
+#define NV_DPMS_CLEARED 0x80
+
+struct nvkm_i2c_port;
+
+struct nouveau_encoder {
+ struct drm_encoder_slave base;
+
+ struct dcb_output *dcb;
+ struct nvif_outp outp;
+ int or;
+ int link;
+
+ struct i2c_adapter *i2c;
+ struct nvkm_i2c_aux *aux;
+
+ /* different to drm_encoder.crtc, this reflects what's
+ * actually programmed on the hw, not the proposed crtc */
+ struct drm_crtc *crtc;
+ u32 ctrl;
+
+ /* Protected by nouveau_drm.audio.lock */
+ struct {
+ bool enabled;
+ struct drm_connector *connector;
+ } audio;
+
+ struct drm_display_mode mode;
+ int last_dpms;
+
+ struct nv04_output_reg restore;
+
+ union {
+ struct {
+ struct nv50_mstm *mstm;
+ int link_nr;
+ int link_bw;
+
+ /* Protects DP state that needs to be accessed outside
+ * connector reprobing contexts
+ */
+ struct mutex hpd_irq_lock;
+
+ u8 dpcd[DP_RECEIVER_CAP_SIZE];
+ u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
+ struct drm_dp_desc desc;
+
+ u8 sink_count;
+ } dp;
+ };
+
+ struct {
+ bool dp_interlace : 1;
+ } caps;
+
+ void (*enc_save)(struct drm_encoder *encoder);
+ void (*enc_restore)(struct drm_encoder *encoder);
+ void (*update)(struct nouveau_encoder *, u8 head,
+ struct nv50_head_atom *, u8 proto, u8 depth);
+};
+
+struct nv50_mstm {
+ struct nouveau_encoder *outp;
+
+ struct drm_dp_mst_topology_mgr mgr;
+
+ /* Protected under nouveau_encoder->dp.hpd_irq_lock */
+ bool can_mst;
+ bool is_mst;
+ bool suspended;
+
+ bool modified;
+ bool disabled;
+ int links;
+};
+
+struct nouveau_encoder *
+find_encoder(struct drm_connector *connector, int type);
+
+static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
+{
+ struct drm_encoder_slave *slave = to_encoder_slave(enc);
+
+ return container_of(slave, struct nouveau_encoder, base);
+}
+
+static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
+{
+ return &enc->base.base;
+}
+
+static inline const struct drm_encoder_slave_funcs *
+get_slave_funcs(struct drm_encoder *enc)
+{
+ return to_encoder_slave(enc)->slave_funcs;
+}
+
+/* nouveau_dp.c */
+enum nouveau_dp_status {
+ NOUVEAU_DP_NONE,
+ NOUVEAU_DP_SST,
+ NOUVEAU_DP_MST,
+};
+
+int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
+void nouveau_dp_irq(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector);
+enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
+ struct nouveau_encoder *,
+ const struct drm_display_mode *,
+ unsigned *clock);
+
+struct nouveau_connector *
+nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
+struct nouveau_connector *
+nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
+
+int nv50_mstm_detect(struct nouveau_encoder *encoder);
+void nv50_mstm_remove(struct nv50_mstm *mstm);
+bool nv50_mstm_service(struct nouveau_drm *drm,
+ struct nouveau_connector *nv_connector,
+ struct nv50_mstm *mstm);
+#endif /* __NOUVEAU_ENCODER_H__ */