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 "drm_encoder_slave.h"
31 #include "nouveau_drv.h"
32 
33 #define NV_DPMS_CLEARED 0x80
34 
35 struct dp_train_func {
36 	void (*link_set)(struct drm_device *, struct dcb_entry *, int crtc,
37 			 int nr, u32 bw, bool enhframe);
38 	void (*train_set)(struct drm_device *, struct dcb_entry *, u8 pattern);
39 	void (*train_adj)(struct drm_device *, struct dcb_entry *,
40 			  u8 lane, u8 swing, u8 preem);
41 };
42 
43 struct nouveau_encoder {
44 	struct drm_encoder_slave base;
45 
46 	struct dcb_entry *dcb;
47 	int or;
48 
49 	/* different to drm_encoder.crtc, this reflects what's
50 	 * actually programmed on the hw, not the proposed crtc */
51 	struct drm_crtc *crtc;
52 
53 	struct drm_display_mode mode;
54 	int last_dpms;
55 
56 	struct nv04_output_reg restore;
57 
58 	union {
59 		struct {
60 			u8  dpcd[8];
61 			int link_nr;
62 			int link_bw;
63 			u32 datarate;
64 		} dp;
65 	};
66 };
67 
68 struct nouveau_encoder *
69 find_encoder(struct drm_connector *connector, int type);
70 
71 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
72 {
73 	struct drm_encoder_slave *slave = to_encoder_slave(enc);
74 
75 	return container_of(slave, struct nouveau_encoder, base);
76 }
77 
78 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
79 {
80 	return &enc->base.base;
81 }
82 
83 static inline struct drm_encoder_slave_funcs *
84 get_slave_funcs(struct drm_encoder *enc)
85 {
86 	return to_encoder_slave(enc)->slave_funcs;
87 }
88 
89 /* nouveau_dp.c */
90 int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
91 		     uint8_t *data, int data_nr);
92 bool nouveau_dp_detect(struct drm_encoder *);
93 void nouveau_dp_dpms(struct drm_encoder *, int mode, u32 datarate,
94 		     struct dp_train_func *);
95 u8 *nouveau_dp_bios_data(struct drm_device *, struct dcb_entry *, u8 **);
96 
97 struct nouveau_connector *
98 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
99 int nv50_sor_create(struct drm_connector *, struct dcb_entry *);
100 void nv50_sor_dp_calc_tu(struct drm_device *, int, int, u32, u32);
101 int nv50_dac_create(struct drm_connector *, struct dcb_entry *);
102 
103 
104 #endif /* __NOUVEAU_ENCODER_H__ */
105