LXR linux/drivers/gpu/drm/nouveau/nouveau

   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