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_CONNECTOR_H__
28#define __NOUVEAU_CONNECTOR_H__
29
30#include <nvif/notify.h>
31
32#include <nvhw/class/cl507d.h>
33#include <nvhw/class/cl907d.h>
34#include <nvhw/drf.h>
35
36#include <drm/drm_crtc.h>
37#include <drm/drm_edid.h>
38#include <drm/drm_encoder.h>
39#include <drm/drm_dp_helper.h>
40#include <drm/drm_util.h>
41
42#include "nouveau_crtc.h"
43#include "nouveau_encoder.h"
44
45struct nvkm_i2c_port;
46struct dcb_output;
47
48#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
49struct nouveau_backlight;
50#endif
51
52#define nouveau_conn_atom(p)                                                   \
53	container_of((p), struct nouveau_conn_atom, state)
54
55struct nouveau_conn_atom {
56	struct drm_connector_state state;
57
58	struct {
59		/* The enum values specifically defined here match nv50/gf119
60		 * hw values, and the code relies on this.
61		 */
62		enum {
63			DITHERING_MODE_OFF =
64				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, DISABLE),
65			DITHERING_MODE_ON =
66				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, ENABLE),
67			DITHERING_MODE_DYNAMIC2X2 = DITHERING_MODE_ON |
68				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, DYNAMIC_2X2),
69			DITHERING_MODE_STATIC2X2 = DITHERING_MODE_ON |
70				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, STATIC_2X2),
71			DITHERING_MODE_TEMPORAL = DITHERING_MODE_ON |
72				NVDEF(NV907D, HEAD_SET_DITHER_CONTROL, MODE, TEMPORAL),
73			DITHERING_MODE_AUTO
74		} mode;
75		enum {
76			DITHERING_DEPTH_6BPC =
77				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_6_BITS),
78			DITHERING_DEPTH_8BPC =
79				NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_8_BITS),
80			DITHERING_DEPTH_AUTO
81		} depth;
82	} dither;
83
84	struct {
85		int mode;	/* DRM_MODE_SCALE_* */
86		struct {
87			enum {
88				UNDERSCAN_OFF,
89				UNDERSCAN_ON,
90				UNDERSCAN_AUTO,
91			} mode;
92			u32 hborder;
93			u32 vborder;
94		} underscan;
95		bool full;
96	} scaler;
97
98	struct {
99		int color_vibrance;
100		int vibrant_hue;
101	} procamp;
102
103	union {
104		struct {
105			bool dither:1;
106			bool scaler:1;
107			bool procamp:1;
108		};
109		u8 mask;
110	} set;
111};
112
113struct nouveau_connector {
114	struct drm_connector base;
115	enum dcb_connector_type type;
116	u8 index;
117	u8 *dcb;
118
119	struct nvif_notify hpd;
120
121	struct drm_dp_aux aux;
122
123	int dithering_mode;
124	int scaling_mode;
125
126	struct nouveau_encoder *detected_encoder;
127	struct edid *edid;
128	struct drm_display_mode *native_mode;
129#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
130	struct nouveau_backlight *backlight;
131#endif
132	/*
133	 * Our connector property code expects a nouveau_conn_atom struct
134	 * even on pre-nv50 where we do not support atomic. This embedded
135	 * version gets used in the non atomic modeset case.
136	 */
137	struct nouveau_conn_atom properties_state;
138};
139
140static inline struct nouveau_connector *nouveau_connector(
141						struct drm_connector *con)
142{
143	return container_of(con, struct nouveau_connector, base);
144}
145
146static inline bool
147nouveau_connector_is_mst(struct drm_connector *connector)
148{
149	const struct nouveau_encoder *nv_encoder;
150	const struct drm_encoder *encoder;
151
152	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
153		return false;
154
155	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
156	if (!nv_encoder)
157		return false;
158
159	encoder = &nv_encoder->base.base;
160	return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
161}
162
163#define nouveau_for_each_non_mst_connector_iter(connector, iter) \
164	drm_for_each_connector_iter(connector, iter) \
165		for_each_if(!nouveau_connector_is_mst(connector))
166
167static inline struct nouveau_connector *
168nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
169{
170	struct drm_device *dev = nv_crtc->base.dev;
171	struct drm_connector *connector;
172	struct drm_connector_list_iter conn_iter;
173	struct nouveau_connector *nv_connector = NULL;
174	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
175
176	drm_connector_list_iter_begin(dev, &conn_iter);
177	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
178		if (connector->encoder && connector->encoder->crtc == crtc) {
179			nv_connector = nouveau_connector(connector);
180			break;
181		}
182	}
183	drm_connector_list_iter_end(&conn_iter);
184
185	return nv_connector;
186}
187
188struct drm_connector *
189nouveau_connector_create(struct drm_device *, const struct dcb_output *);
190void nouveau_connector_hpd(struct drm_connector *connector);
191
192extern int nouveau_tv_disable;
193extern int nouveau_ignorelid;
194extern int nouveau_duallink;
195extern int nouveau_hdmimhz;
196
197void nouveau_conn_attach_properties(struct drm_connector *);
198void nouveau_conn_reset(struct drm_connector *);
199struct drm_connector_state *
200nouveau_conn_atomic_duplicate_state(struct drm_connector *);
201void nouveau_conn_atomic_destroy_state(struct drm_connector *,
202				       struct drm_connector_state *);
203int nouveau_conn_atomic_set_property(struct drm_connector *,
204				     struct drm_connector_state *,
205				     struct drm_property *, u64);
206int nouveau_conn_atomic_get_property(struct drm_connector *,
207				     const struct drm_connector_state *,
208				     struct drm_property *, u64 *);
209struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
210enum drm_mode_status
211nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
212			      const unsigned min_clock,
213			      const unsigned max_clock,
214			      unsigned *clock);
215
216#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
217extern int nouveau_backlight_init(struct drm_connector *);
218extern void nouveau_backlight_fini(struct drm_connector *);
219extern void nouveau_backlight_ctor(void);
220extern void nouveau_backlight_dtor(void);
221#else
222static inline int
223nouveau_backlight_init(struct drm_connector *connector)
224{
225	return 0;
226}
227
228static inline void
229nouveau_backlight_fini(struct drm_connector *connector) {
230}
231
232static inline void
233nouveau_backlight_ctor(void) {
234}
235
236static inline void
237nouveau_backlight_dtor(void) {
238}
239#endif
240
241#endif /* __NOUVEAU_CONNECTOR_H__ */
242