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 #include <nvif/outp.h>
30 #include <subdev/bios/dcb.h>
31
32 #include <drm/display/drm_dp_helper.h>
33 #include <drm/display/drm_dp_mst_helper.h>
34 #include <drm/drm_encoder_slave.h>
35
36 #include "dispnv04/disp.h"
37
38 struct nv50_head_atom;
39 struct nouveau_connector;
40
41 #define NV_DPMS_CLEARED 0x80
42
43 struct nvkm_i2c_port;
44
45 struct nouveau_encoder {
46 struct drm_encoder_slave base;
47
48 struct dcb_output *dcb;
49 struct nvif_outp outp;
50 int or;
51 int link;
52
53 struct i2c_adapter *i2c;
54 struct nvkm_i2c_aux *aux;
55
56 /* different to drm_encoder.crtc, this reflects what's
57 * actually programmed on the hw, not the proposed crtc */
58 struct drm_crtc *crtc;
59 u32 ctrl;
60
61 /* Protected by nouveau_drm.audio.lock */
62 struct {
63 bool enabled;
64 struct drm_connector *connector;
65 } audio;
66
67 struct drm_display_mode mode;
68 int last_dpms;
69
70 struct nv04_output_reg restore;
71
72 union {
73 struct {
74 struct nv50_mstm *mstm;
75 int link_nr;
76 int link_bw;
77
78 /* Protects DP state that needs to be accessed outside
79 * connector reprobing contexts
80 */
81 struct mutex hpd_irq_lock;
82
83 u8 dpcd[DP_RECEIVER_CAP_SIZE];
84 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
85 struct drm_dp_desc desc;
86
87 u8 sink_count;
88 } dp;
89 };
90
91 struct {
92 bool dp_interlace : 1;
93 } caps;
94
95 void (*enc_save)(struct drm_encoder *encoder);
96 void (*enc_restore)(struct drm_encoder *encoder);
97 void (*update)(struct nouveau_encoder *, u8 head,
98 struct nv50_head_atom *, u8 proto, u8 depth);
99 };
100
101 struct nv50_mstm {
102 struct nouveau_encoder *outp;
103
104 struct drm_dp_mst_topology_mgr mgr;
105
106 /* Protected under nouveau_encoder->dp.hpd_irq_lock */
107 bool can_mst;
108 bool is_mst;
109 bool suspended;
110
111 bool modified;
112 bool disabled;
113 int links;
114 };
115
116 struct nouveau_encoder *
117 find_encoder(struct drm_connector *connector, int type);
118
nouveau_encoder(struct drm_encoder * enc)119 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
120 {
121 struct drm_encoder_slave *slave = to_encoder_slave(enc);
122
123 return container_of(slave, struct nouveau_encoder, base);
124 }
125
to_drm_encoder(struct nouveau_encoder * enc)126 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
127 {
128 return &enc->base.base;
129 }
130
131 static inline const struct drm_encoder_slave_funcs *
get_slave_funcs(struct drm_encoder * enc)132 get_slave_funcs(struct drm_encoder *enc)
133 {
134 return to_encoder_slave(enc)->slave_funcs;
135 }
136
137 /* nouveau_dp.c */
138 enum nouveau_dp_status {
139 NOUVEAU_DP_NONE,
140 NOUVEAU_DP_SST,
141 NOUVEAU_DP_MST,
142 };
143
144 int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
145 void nouveau_dp_irq(struct nouveau_drm *drm,
146 struct nouveau_connector *nv_connector);
147 enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
148 struct nouveau_encoder *,
149 const struct drm_display_mode *,
150 unsigned *clock);
151
152 struct nouveau_connector *
153 nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
154 struct nouveau_connector *
155 nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);
156
157 int nv50_mstm_detect(struct nouveau_encoder *encoder);
158 void nv50_mstm_remove(struct nv50_mstm *mstm);
159 bool nv50_mstm_service(struct nouveau_drm *drm,
160 struct nouveau_connector *nv_connector,
161 struct nv50_mstm *mstm);
162 #endif /* __NOUVEAU_ENCODER_H__ */
163