1 /* $NetBSD: nouveau_encoder.h,v 1.3 2021/12/18 23:45:32 riastradh Exp $ */
2
3 /*
4 * Copyright (C) 2008 Maarten Maathuis.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 */
28
29 #ifndef __NOUVEAU_ENCODER_H__
30 #define __NOUVEAU_ENCODER_H__
31
32 #include <subdev/bios/dcb.h>
33
34 #include <drm/drm_encoder_slave.h>
35 #include <drm/drm_dp_mst_helper.h>
36 #include "dispnv04/disp.h"
37 struct nv50_head_atom;
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 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 } dp;
69 };
70
71 void (*enc_save)(struct drm_encoder *encoder);
72 void (*enc_restore)(struct drm_encoder *encoder);
73 void (*update)(struct nouveau_encoder *, u8 head,
74 struct nv50_head_atom *, u8 proto, u8 depth);
75 };
76
77 struct nouveau_encoder *
78 find_encoder(struct drm_connector *connector, int type);
79
nouveau_encoder(struct drm_encoder * enc)80 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
81 {
82 struct drm_encoder_slave *slave = to_encoder_slave(enc);
83
84 return container_of(slave, struct nouveau_encoder, base);
85 }
86
to_drm_encoder(struct nouveau_encoder * enc)87 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
88 {
89 return &enc->base.base;
90 }
91
92 static inline const struct drm_encoder_slave_funcs *
get_slave_funcs(struct drm_encoder * enc)93 get_slave_funcs(struct drm_encoder *enc)
94 {
95 return to_encoder_slave(enc)->slave_funcs;
96 }
97
98 /* nouveau_dp.c */
99 enum nouveau_dp_status {
100 NOUVEAU_DP_SST,
101 NOUVEAU_DP_MST,
102 };
103
104 int nouveau_dp_detect(struct nouveau_encoder *);
105
106 struct nouveau_connector *
107 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
108
109 int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow);
110 void nv50_mstm_remove(struct nv50_mstm *);
111 void nv50_mstm_service(struct nv50_mstm *);
112 #endif /* __NOUVEAU_ENCODER_H__ */
113