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        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
  62struct 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
 120struct nouveau_connector {
 121        struct drm_connector base;
 122        enum dcb_connector_type type;
 123        u8 index;
 124        u8 *dcb;
 125
 126        struct nvif_notify hpd;
 127
 128        struct drm_dp_aux aux;
 129
 130        int dithering_mode;
 131        int scaling_mode;
 132
 133        struct nouveau_encoder *detected_encoder;
 134        struct edid *edid;
 135        struct drm_display_mode *native_mode;
 136#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 137        struct nouveau_backlight *backlight;
 138#endif
 139        /*
 140         * Our connector property code expects a nouveau_conn_atom struct
 141         * even on pre-nv50 where we do not support atomic. This embedded
 142         * version gets used in the non atomic modeset case.
 143         */
 144        struct nouveau_conn_atom properties_state;
 145};
 146
 147static inline struct nouveau_connector *nouveau_connector(
 148                                                struct drm_connector *con)
 149{
 150        return container_of(con, struct nouveau_connector, base);
 151}
 152
 153static inline bool
 154nouveau_connector_is_mst(struct drm_connector *connector)
 155{
 156        const struct nouveau_encoder *nv_encoder;
 157        const struct drm_encoder *encoder;
 158
 159        if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
 160                return false;
 161
 162        nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
 163        if (!nv_encoder)
 164                return false;
 165
 166        encoder = &nv_encoder->base.base;
 167        return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
 168}
 169
 170#define nouveau_for_each_non_mst_connector_iter(connector, iter) \
 171        drm_for_each_connector_iter(connector, iter) \
 172                for_each_if(!nouveau_connector_is_mst(connector))
 173
 174static inline struct nouveau_connector *
 175nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
 176{
 177        struct drm_device *dev = nv_crtc->base.dev;
 178        struct drm_connector *connector;
 179        struct drm_connector_list_iter conn_iter;
 180        struct nouveau_connector *nv_connector = NULL;
 181        struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
 182
 183        drm_connector_list_iter_begin(dev, &conn_iter);
 184        nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 185                if (connector->encoder && connector->encoder->crtc == crtc) {
 186                        nv_connector = nouveau_connector(connector);
 187                        break;
 188                }
 189        }
 190        drm_connector_list_iter_end(&conn_iter);
 191
 192        return nv_connector;
 193}
 194
 195struct drm_connector *
 196nouveau_connector_create(struct drm_device *, const struct dcb_output *);
 197void nouveau_connector_hpd(struct drm_connector *connector);
 198
 199extern int nouveau_tv_disable;
 200extern int nouveau_ignorelid;
 201extern int nouveau_duallink;
 202extern int nouveau_hdmimhz;
 203
 204void nouveau_conn_attach_properties(struct drm_connector *);
 205void nouveau_conn_reset(struct drm_connector *);
 206struct drm_connector_state *
 207nouveau_conn_atomic_duplicate_state(struct drm_connector *);
 208void nouveau_conn_atomic_destroy_state(struct drm_connector *,
 209                                       struct drm_connector_state *);
 210int nouveau_conn_atomic_set_property(struct drm_connector *,
 211                                     struct drm_connector_state *,
 212                                     struct drm_property *, u64);
 213int nouveau_conn_atomic_get_property(struct drm_connector *,
 214                                     const struct drm_connector_state *,
 215                                     struct drm_property *, u64 *);
 216struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
 217enum drm_mode_status
 218nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
 219                              const unsigned min_clock,
 220                              const unsigned max_clock,
 221                              unsigned *clock);
 222
 223#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 224extern int nouveau_backlight_init(struct drm_connector *);
 225extern void nouveau_backlight_fini(struct drm_connector *);
 226extern void nouveau_backlight_ctor(void);
 227extern void nouveau_backlight_dtor(void);
 228#else
 229static inline int
 230nouveau_backlight_init(struct drm_connector *connector)
 231{
 232        return 0;
 233}
 234
 235static inline void
 236nouveau_backlight_fini(struct drm_connector *connector) {
 237}
 238
 239static inline void
 240nouveau_backlight_ctor(void) {
 241}
 242
 243static inline void
 244nouveau_backlight_dtor(void) {
 245}
 246#endif
 247
 248#endif /* __NOUVEAU_CONNECTOR_H__ */
 249