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 <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
  41struct nvkm_i2c_port;
  42struct dcb_output;
  43
  44#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
  45struct nouveau_backlight;
  46#endif
  47
  48#define nouveau_conn_atom(p)                                                   \
  49        container_of((p), struct nouveau_conn_atom, state)
  50
  51struct 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
 102struct 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
 129static inline struct nouveau_connector *nouveau_connector(
 130                                                struct drm_connector *con)
 131{
 132        return container_of(con, struct nouveau_connector, base);
 133}
 134
 135static inline bool
 136nouveau_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
 156static inline struct nouveau_connector *
 157nouveau_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
 177struct drm_connector *
 178nouveau_connector_create(struct drm_device *, const struct dcb_output *);
 179
 180extern int nouveau_tv_disable;
 181extern int nouveau_ignorelid;
 182extern int nouveau_duallink;
 183extern int nouveau_hdmimhz;
 184
 185void nouveau_conn_attach_properties(struct drm_connector *);
 186void nouveau_conn_reset(struct drm_connector *);
 187struct drm_connector_state *
 188nouveau_conn_atomic_duplicate_state(struct drm_connector *);
 189void nouveau_conn_atomic_destroy_state(struct drm_connector *,
 190                                       struct drm_connector_state *);
 191int nouveau_conn_atomic_set_property(struct drm_connector *,
 192                                     struct drm_connector_state *,
 193                                     struct drm_property *, u64);
 194int nouveau_conn_atomic_get_property(struct drm_connector *,
 195                                     const struct drm_connector_state *,
 196                                     struct drm_property *, u64 *);
 197struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
 198enum drm_mode_status
 199nouveau_conn_mode_clock_valid(const struct drm_display_mode *,
 200                              const unsigned min_clock,
 201                              const unsigned max_clock,
 202                              unsigned *clock);
 203
 204#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 205extern int nouveau_backlight_init(struct drm_connector *);
 206extern void nouveau_backlight_fini(struct drm_connector *);
 207extern void nouveau_backlight_ctor(void);
 208extern void nouveau_backlight_dtor(void);
 209#else
 210static inline int
 211nouveau_backlight_init(struct drm_connector *connector)
 212{
 213        return 0;
 214}
 215
 216static inline void
 217nouveau_backlight_fini(struct drm_connector *connector) {
 218}
 219
 220static inline void
 221nouveau_backlight_ctor(void) {
 222}
 223
 224static inline void
 225nouveau_backlight_dtor(void) {
 226}
 227#endif
 228
 229#endif /* __NOUVEAU_CONNECTOR_H__ */
 230