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 #include <nvif/conn.h>
30 #include <nvif/event.h>
31
32 #include <nvhw/class/cl507d.h>
33 #include <nvhw/class/cl907d.h>
34 #include <nvhw/drf.h>
35
36 #include <drm/display/drm_dp_helper.h>
37 #include <drm/drm_crtc.h>
38 #include <drm/drm_encoder.h>
39 #include <drm/drm_util.h>
40
41 #include "nouveau_crtc.h"
42 #include "nouveau_encoder.h"
43
44 struct nvkm_i2c_port;
45 struct dcb_output;
46 struct edid;
47
48 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
49 struct nouveau_backlight {
50 struct backlight_device *dev;
51
52 struct drm_edp_backlight_info edp_info;
53 bool uses_dpcd : 1;
54
55 int id;
56 };
57 #endif
58
59 #define nouveau_conn_atom(p) \
60 container_of((p), struct nouveau_conn_atom, state)
61
62 struct nouveau_conn_atom {
63 struct drm_connector_state state;
64
65 struct {
66 /* The enum values specifically defined here match nv50/gf119
67 * hw values, and the code relies on this.
68 */
69 enum {
70 DITHERING_MODE_OFF =
71 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, DISABLE),
72 DITHERING_MODE_ON =
73 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, ENABLE),
74 DITHERING_MODE_DYNAMIC2X2 = DITHERING_MODE_ON |
75 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, DYNAMIC_2X2),
76 DITHERING_MODE_STATIC2X2 = DITHERING_MODE_ON |
77 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, MODE, STATIC_2X2),
78 DITHERING_MODE_TEMPORAL = DITHERING_MODE_ON |
79 NVDEF(NV907D, HEAD_SET_DITHER_CONTROL, MODE, TEMPORAL),
80 DITHERING_MODE_AUTO
81 } mode;
82 enum {
83 DITHERING_DEPTH_6BPC =
84 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_6_BITS),
85 DITHERING_DEPTH_8BPC =
86 NVDEF(NV507D, HEAD_SET_DITHER_CONTROL, BITS, DITHER_TO_8_BITS),
87 DITHERING_DEPTH_AUTO
88 } depth;
89 } dither;
90
91 struct {
92 int mode; /* DRM_MODE_SCALE_* */
93 struct {
94 enum {
95 UNDERSCAN_OFF,
96 UNDERSCAN_ON,
97 UNDERSCAN_AUTO,
98 } mode;
99 u32 hborder;
100 u32 vborder;
101 } underscan;
102 bool full;
103 } scaler;
104
105 struct {
106 int color_vibrance;
107 int vibrant_hue;
108 } procamp;
109
110 union {
111 struct {
112 bool dither:1;
113 bool scaler:1;
114 bool procamp:1;
115 };
116 u8 mask;
117 } set;
118 };
119
120 struct nouveau_connector {
121 struct drm_connector base;
122 enum dcb_connector_type type;
123 u8 index;
124
125 struct nvif_conn conn;
126 u64 hpd_pending;
127 struct nvif_event hpd;
128 struct nvif_event irq;
129 struct work_struct irq_work;
130
131 struct drm_dp_aux aux;
132
133 /* The fixed DP encoder for this connector, if there is one */
134 struct nouveau_encoder *dp_encoder;
135
136 int dithering_mode;
137 int scaling_mode;
138
139 struct nouveau_encoder *detected_encoder;
140 struct edid *edid;
141 struct drm_display_mode *native_mode;
142 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
143 struct nouveau_backlight *backlight;
144 #endif
145 /*
146 * Our connector property code expects a nouveau_conn_atom struct
147 * even on pre-nv50 where we do not support atomic. This embedded
148 * version gets used in the non atomic modeset case.
149 */
150 struct nouveau_conn_atom properties_state;
151 };
152
nouveau_connector(struct drm_connector * con)153 static inline struct nouveau_connector *nouveau_connector(
154 struct drm_connector *con)
155 {
156 return container_of(con, struct nouveau_connector, base);
157 }
158
159 static inline bool
nouveau_connector_is_mst(struct drm_connector * connector)160 nouveau_connector_is_mst(struct drm_connector *connector)
161 {
162 const struct nouveau_encoder *nv_encoder;
163 const struct drm_encoder *encoder;
164
165 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
166 return false;
167
168 nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
169 if (!nv_encoder)
170 return false;
171
172 encoder = &nv_encoder->base.base;
173 return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
174 }
175
176 #define nouveau_for_each_non_mst_connector_iter(connector, iter) \
177 drm_for_each_connector_iter(connector, iter) \
178 for_each_if(!nouveau_connector_is_mst(connector))
179
180 static inline struct nouveau_connector *
nouveau_crtc_connector_get(struct nouveau_crtc * nv_crtc)181 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
182 {
183 struct drm_device *dev = nv_crtc->base.dev;
184 struct drm_connector *connector;
185 struct drm_connector_list_iter conn_iter;
186 struct nouveau_connector *nv_connector = NULL;
187 struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
188
189 drm_connector_list_iter_begin(dev, &conn_iter);
190 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
191 if (connector->encoder && connector->encoder->crtc == crtc) {
192 nv_connector = nouveau_connector(connector);
193 break;
194 }
195 }
196 drm_connector_list_iter_end(&conn_iter);
197
198 return nv_connector;
199 }
200
201 struct drm_connector *
202 nouveau_connector_create(struct drm_device *, int id);
203 void nouveau_connector_hpd(struct nouveau_connector *, u64 bits);
204
205 extern int nouveau_tv_disable;
206 extern int nouveau_ignorelid;
207 extern int nouveau_duallink;
208 extern int nouveau_hdmimhz;
209
210 void nouveau_conn_attach_properties(struct drm_connector *);
211 void nouveau_conn_reset(struct drm_connector *);
212 struct drm_connector_state *
213 nouveau_conn_atomic_duplicate_state(struct drm_connector *);
214 void nouveau_conn_atomic_destroy_state(struct drm_connector *,
215 struct drm_connector_state *);
216 int nouveau_conn_atomic_set_property(struct drm_connector *,
217 struct drm_connector_state *,
218 struct drm_property *, u64);
219 int nouveau_conn_atomic_get_property(struct drm_connector *,
220 const struct drm_connector_state *,
221 struct drm_property *, u64 *);
222 struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
223 enum drm_mode_status
224 nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
225 const unsigned min_clock,
226 const unsigned max_clock,
227 unsigned *clock);
228
229 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
230 extern int nouveau_backlight_init(struct drm_connector *);
231 extern void nouveau_backlight_fini(struct drm_connector *);
232 extern void nouveau_backlight_ctor(void);
233 extern void nouveau_backlight_dtor(void);
234 #else
235 static inline int
nouveau_backlight_init(struct drm_connector * connector)236 nouveau_backlight_init(struct drm_connector *connector)
237 {
238 return 0;
239 }
240
241 static inline void
nouveau_backlight_fini(struct drm_connector * connector)242 nouveau_backlight_fini(struct drm_connector *connector) {
243 }
244
245 static inline void
nouveau_backlight_ctor(void)246 nouveau_backlight_ctor(void) {
247 }
248
249 static inline void
nouveau_backlight_dtor(void)250 nouveau_backlight_dtor(void) {
251 }
252 #endif
253
254 #endif /* __NOUVEAU_CONNECTOR_H__ */
255