1 /*
2 * Copyright (C) 2008 Maarten Maathuis.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #ifndef __NOUVEAU_ENCODER_H__
28 #define __NOUVEAU_ENCODER_H__
29
30 #include <subdev/bios/dcb.h>
31
32 #include <drm/drm_encoder_slave.h>
33 #include <drm/drm_dp_mst_helper.h>
34 #include "dispnv04/disp.h"
35 struct nv50_head_atom;
36 struct nouveau_connector;
37
38 #define NV_DPMS_CLEARED 0x80
39
40 struct nvkm_i2c_port;
41
42 struct nouveau_encoder {
43 struct drm_encoder_slave base;
44
45 struct dcb_output *dcb;
46 int or;
47 int link;
48
49 struct i2c_adapter *i2c;
50 struct nvkm_i2c_aux *aux;
51
52 /* different to drm_encoder.crtc, this reflects what's
53 * actually programmed on the hw, not the proposed crtc */
54 struct drm_crtc *crtc;
55 u32 ctrl;
56 bool audio;
57
58 struct drm_display_mode mode;
59 int last_dpms;
60
61 struct nv04_output_reg restore;
62
63 union {
64 struct {
65 struct nv50_mstm *mstm;
66 int link_nr;
67 int link_bw;
68
69 /* Protects DP state that needs to be accessed outside
70 * connector reprobing contexts
71 */
72 struct mutex hpd_irq_lock;
73
74 u8 dpcd[DP_RECEIVER_CAP_SIZE];
75 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
76 struct drm_dp_desc desc;
77
78 u8 sink_count;
79 } dp;
80 };
81
82 struct {
83 bool dp_interlace : 1;
84 } caps;
85
86 void (*enc_save)(struct drm_encoder *encoder);
87 void (*enc_restore)(struct drm_encoder *encoder);
88 void (*update)(struct nouveau_encoder *, u8 head,
89 struct nv50_head_atom *, u8 proto, u8 depth);
90 };
91
92 struct nv50_mstm {
93 struct nouveau_encoder *outp;
94
95 struct drm_dp_mst_topology_mgr mgr;
96
97 /* Protected under nouveau_encoder->dp.hpd_irq_lock */
98 bool can_mst;
99 bool is_mst;
100 bool suspended;
101
102 bool modified;
103 bool disabled;
104 int links;
105 };
106
107 struct nouveau_encoder *
108 find_encoder(struct drm_connector *connector, int type);
109
nouveau_encoder(struct drm_encoder * enc)110 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
111 {
112 struct drm_encoder_slave *slave = to_encoder_slave(enc);
113
114 return container_of(slave, struct nouveau_encoder, base);
115 }
116
to_drm_encoder(struct nouveau_encoder * enc)117 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
118 {
119 return &enc->base.base;
120 }
121
122 static inline const struct drm_encoder_slave_funcs *
get_slave_funcs(struct drm_encoder * enc)123 get_slave_funcs(struct drm_encoder *enc)
124 {
125 return to_encoder_slave(enc)->slave_funcs;
126 }
127
128 /* nouveau_dp.c */
129 enum nouveau_dp_status {
130 NOUVEAU_DP_NONE,
131 NOUVEAU_DP_SST,
132 NOUVEAU_DP_MST,
133 };
134
135 int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
136 void nouveau_dp_irq(struct nouveau_drm *drm,
137 struct nouveau_connector *nv_connector);
138 enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
139 struct nouveau_encoder *,
140 const struct drm_display_mode *,
141 unsigned *clock);
142
143 struct nouveau_connector *
144 nv50_outp_get_new_connector(struct nouveau_encoder *outp,
145 struct drm_atomic_state *state);
146 struct nouveau_connector *
147 nv50_outp_get_old_connector(struct nouveau_encoder *outp,
148 struct drm_atomic_state *state);
149
150 int nv50_mstm_detect(struct nouveau_encoder *encoder);
151 void nv50_mstm_remove(struct nv50_mstm *mstm);
152 bool nv50_mstm_service(struct nouveau_drm *drm,
153 struct nouveau_connector *nv_connector,
154 struct nv50_mstm *mstm);
155 #endif /* __NOUVEAU_ENCODER_H__ */
156