drivers/gpu/drm/nouveau/nouveau_connector.h

   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 <drm/drm_crtc.h>
  33 #include <drm/drm_edid.h>
  34 #include <drm/drm_encoder.h>
  35 #include <drm/drm_dp_helper.h>
  36 #include <drm/drm_util.h>
  37
  38 #include "nouveau_crtc.h"
  39 #include "nouveau_encoder.h"
  40
  41 struct nvkm_i2c_port;
  42 struct dcb_output;
  43
  44 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
  45 struct nouveau_backlight;
  46 #endif
  47
  48 #define nouveau_conn_atom(p)                                                   \
  49         container_of((p), struct nouveau_conn_atom, state)
  50
  51 struct nouveau_conn_atom {
  52         struct drm_connector_state state;
  53
  54         struct {
  55                 /* The enum values specifically defined here match nv50/gf119
  56                  * hw values, and the code relies on this.
  57                  */
  58                 enum {
  59                         DITHERING_MODE_OFF = 0x00,
  60                         DITHERING_MODE_ON = 0x01,
  61                         DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
  62                         DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
  63                         DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
  64                         DITHERING_MODE_AUTO
  65                 } mode;
  66                 enum {
  67                         DITHERING_DEPTH_6BPC = 0x00,
  68                         DITHERING_DEPTH_8BPC = 0x02,
  69                         DITHERING_DEPTH_AUTO
  70                 } depth;
  71         } dither;
  72
  73         struct {
  74                 int mode;       /* DRM_MODE_SCALE_* */
  75                 struct {
  76                         enum {
  77                                 UNDERSCAN_OFF,
  78                                 UNDERSCAN_ON,
  79                                 UNDERSCAN_AUTO,
  80                         } mode;
  81                         u32 hborder;
  82                         u32 vborder;
  83                 } underscan;
  84                 bool full;
  85         } scaler;
  86
  87         struct {
  88                 int color_vibrance;
  89                 int vibrant_hue;
  90         } procamp;
  91
  92         union {
  93                 struct {
  94                         bool dither:1;
  95                         bool scaler:1;
  96                         bool procamp:1;
  97                 };
  98                 u8 mask;
  99         } set;
 100 };
 101
 102 struct nouveau_connector {
 103         struct drm_connector base;
 104         enum dcb_connector_type type;
 105         u8 index;
 106         u8 *dcb;
 107
 108         struct nvif_notify hpd;
 109
 110         struct drm_dp_aux aux;
 111
 112         int dithering_mode;
 113         int scaling_mode;
 114
 115         struct nouveau_encoder *detected_encoder;
 116         struct edid *edid;
 117         struct drm_display_mode *native_mode;
 118 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 119         struct nouveau_backlight *backlight;
 120 #endif
 121         /*
 122          * Our connector property code expects a nouveau_conn_atom struct
 123          * even on pre-nv50 where we do not support atomic. This embedded
 124          * version gets used in the non atomic modeset case.
 125          */
 126         struct nouveau_conn_atom properties_state;
 127 };
 128
 129 static inline struct nouveau_connector *nouveau_connector(
 130                                                 struct drm_connector *con)
 131 {
 132         return container_of(con, struct nouveau_connector, base);
 133 }
 134
 135 static inline bool
 136 nouveau_connector_is_mst(struct drm_connector *connector)
 137 {
 138         const struct nouveau_encoder *nv_encoder;
 139         const struct drm_encoder *encoder;
 140
 141         if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
 142                 return false;
 143
 144         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
 145         if (!nv_encoder)
 146                 return false;
 147
 148         encoder = &nv_encoder->base.base;
 149         return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
 150 }
 151
 152 #define nouveau_for_each_non_mst_connector_iter(connector, iter) \
 153         drm_for_each_connector_iter(connector, iter) \
 154                 for_each_if(!nouveau_connector_is_mst(connector))
 155
 156 static inline struct nouveau_connector *
 157 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
 158 {
 159         struct drm_device *dev = nv_crtc->base.dev;
 160         struct drm_connector *connector;
 161         struct drm_connector_list_iter conn_iter;
 162         struct nouveau_connector *nv_connector = NULL;
 163         struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
 164
 165         drm_connector_list_iter_begin(dev, &conn_iter);
 166         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 167                 if (connector->encoder && connector->encoder->crtc == crtc) {
 168                         nv_connector = nouveau_connector(connector);
 169                         break;
 170                 }
 171         }
 172         drm_connector_list_iter_end(&conn_iter);
 173
 174         return nv_connector;
 175 }
 176
 177 struct drm_connector *
 178 nouveau_connector_create(struct drm_device *, const struct dcb_output *);
 179
 180 extern int nouveau_tv_disable;
 181 extern int nouveau_ignorelid;
 182 extern int nouveau_duallink;
 183 extern int nouveau_hdmimhz;
 184
 185 void nouveau_conn_attach_properties(struct drm_connector *);
 186 void nouveau_conn_reset(struct drm_connector *);
 187 struct drm_connector_state *
 188 nouveau_conn_atomic_duplicate_state(struct drm_connector *);
 189 void nouveau_conn_atomic_destroy_state(struct drm_connector *,
 190                                        struct drm_connector_state *);
 191 int nouveau_conn_atomic_set_property(struct drm_connector *,
 192                                      struct drm_connector_state *,
 193                                      struct drm_property *, u64);
 194 int nouveau_conn_atomic_get_property(struct drm_connector *,
 195                                      const struct drm_connector_state *,
 196                                      struct drm_property *, u64 *);
 197 struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
 198
 199 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 200 extern int nouveau_backlight_init(struct drm_connector *);
 201 extern void nouveau_backlight_fini(struct drm_connector *);
 202 extern void nouveau_backlight_ctor(void);
 203 extern void nouveau_backlight_dtor(void);
 204 #else
 205 static inline int
 206 nouveau_backlight_init(struct drm_connector *connector)
 207 {
 208         return 0;
 209 }
 210
 211 static inline void
 212 nouveau_backlight_fini(struct drm_connector *connector) {
 213 }
 214
 215 static inline void
 216 nouveau_backlight_ctor(void) {
 217 }
 218
 219 static inline void
 220 nouveau_backlight_dtor(void) {
 221 }
 222 #endif
 223
 224 #endif /* __NOUVEAU_CONNECTOR_H__ */