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 <drm/drm_edid.h>
  31 #include "nouveau_crtc.h"
  32
  33 struct nouveau_i2c_port;
  34
  35 enum nouveau_underscan_type {
  36         UNDERSCAN_OFF,
  37         UNDERSCAN_ON,
  38         UNDERSCAN_AUTO,
  39 };
  40
  41 /* the enum values specifically defined here match nv50/nvd0 hw values, and
  42  * the code relies on this
  43  */
  44 enum nouveau_dithering_mode {
  45         DITHERING_MODE_OFF = 0x00,
  46         DITHERING_MODE_ON = 0x01,
  47         DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
  48         DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
  49         DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
  50         DITHERING_MODE_AUTO
  51 };
  52
  53 enum nouveau_dithering_depth {
  54         DITHERING_DEPTH_6BPC = 0x00,
  55         DITHERING_DEPTH_8BPC = 0x02,
  56         DITHERING_DEPTH_AUTO
  57 };
  58
  59 struct nouveau_connector {
  60         struct drm_connector base;
  61         enum dcb_connector_type type;
  62         u8 index;
  63         u8 *dcb;
  64         u8 hpd;
  65
  66         int dithering_mode;
  67         int dithering_depth;
  68         int scaling_mode;
  69         enum nouveau_underscan_type underscan;
  70         u32 underscan_hborder;
  71         u32 underscan_vborder;
  72
  73         struct nouveau_encoder *detected_encoder;
  74         struct edid *edid;
  75         struct drm_display_mode *native_mode;
  76 };
  77
  78 static inline struct nouveau_connector *nouveau_connector(
  79                                                 struct drm_connector *con)
  80 {
  81         return container_of(con, struct nouveau_connector, base);
  82 }
  83
  84 static inline struct nouveau_connector *
  85 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
  86 {
  87         struct drm_device *dev = nv_crtc->base.dev;
  88         struct drm_connector *connector;
  89         struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
  90
  91         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
  92                 if (connector->encoder && connector->encoder->crtc == crtc)
  93                         return nouveau_connector(connector);
  94         }
  95
  96         return NULL;
  97 }
  98
  99 struct drm_connector *
 100 nouveau_connector_create(struct drm_device *, int index);
 101
 102 int
 103 nouveau_connector_bpp(struct drm_connector *);
 104
 105 #endif /* __NOUVEAU_CONNECTOR_H__ */