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
37 #define NV_DPMS_CLEARED 0x80
38
39 struct nvkm_i2c_port;
40
41 struct nouveau_encoder {
42 struct drm_encoder_slave base;
43
44 struct dcb_output *dcb;
45 int or;
46 int link;
47
48 struct i2c_adapter *i2c;
49 struct nvkm_i2c_aux *aux;
50
51 /* different to drm_encoder.crtc, this reflects what's
52 * actually programmed on the hw, not the proposed crtc */
53 struct drm_crtc *crtc;
54 u32 ctrl;
55
56 struct drm_display_mode mode;
57 int last_dpms;
58
59 struct nv04_output_reg restore;
60
61 union {
62 struct {
63 struct nv50_mstm *mstm;
64 int link_nr;
65 int link_bw;
66 } dp;
67 };
68
69 void (*enc_save)(struct drm_encoder *encoder);
70 void (*enc_restore)(struct drm_encoder *encoder);
71 void (*update)(struct nouveau_encoder *, u8 head,
72 struct nv50_head_atom *, u8 proto, u8 depth);
73 };
74
75 struct nouveau_encoder *
76 find_encoder(struct drm_connector *connector, int type);
77
nouveau_encoder(struct drm_encoder * enc)78 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
79 {
80 struct drm_encoder_slave *slave = to_encoder_slave(enc);
81
82 return container_of(slave, struct nouveau_encoder, base);
83 }
84
to_drm_encoder(struct nouveau_encoder * enc)85 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
86 {
87 return &enc->base.base;
88 }
89
90 static inline const struct drm_encoder_slave_funcs *
get_slave_funcs(struct drm_encoder * enc)91 get_slave_funcs(struct drm_encoder *enc)
92 {
93 return to_encoder_slave(enc)->slave_funcs;
94 }
95
96 /* nouveau_dp.c */
97 enum nouveau_dp_status {
98 NOUVEAU_DP_SST,
99 NOUVEAU_DP_MST,
100 };
101
102 int nouveau_dp_detect(struct nouveau_encoder *);
103
104 struct nouveau_connector *
105 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
106
107 int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow);
108 void nv50_mstm_remove(struct nv50_mstm *);
109 void nv50_mstm_service(struct nv50_mstm *);
110 #endif /* __NOUVEAU_ENCODER_H__ */
111
