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