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"
35struct nv50_head_atom;
36struct nouveau_connector;
37
38#define NV_DPMS_CLEARED 0x80
39
40struct nvkm_i2c_port;
41
42struct 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
92struct 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
107struct nouveau_encoder *
108find_encoder(struct drm_connector *connector, int type);
109
110static 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
117static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
118{
119	return &enc->base.base;
120}
121
122static inline const struct drm_encoder_slave_funcs *
123get_slave_funcs(struct drm_encoder *enc)
124{
125	return to_encoder_slave(enc)->slave_funcs;
126}
127
128/* nouveau_dp.c */
129enum nouveau_dp_status {
130	NOUVEAU_DP_NONE,
131	NOUVEAU_DP_SST,
132	NOUVEAU_DP_MST,
133};
134
135int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
136void nouveau_dp_irq(struct nouveau_drm *drm,
137		    struct nouveau_connector *nv_connector);
138enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
139					struct nouveau_encoder *,
140					const struct drm_display_mode *,
141					unsigned *clock);
142
143struct nouveau_connector *
144nv50_outp_get_new_connector(struct nouveau_encoder *outp,
145			    struct drm_atomic_state *state);
146struct nouveau_connector *
147nv50_outp_get_old_connector(struct nouveau_encoder *outp,
148			    struct drm_atomic_state *state);
149
150int nv50_mstm_detect(struct nouveau_encoder *encoder);
151void nv50_mstm_remove(struct nv50_mstm *mstm);
152bool nv50_mstm_service(struct nouveau_drm *drm,
153		       struct nouveau_connector *nv_connector,
154		       struct nv50_mstm *mstm);
155#endif /* __NOUVEAU_ENCODER_H__ */
156