drivers/gpu/drm/nouveau/nouveau_encoder.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_ENCODER_H__
  28 #define __NOUVEAU_ENCODER_H__
  29
  30 #include <subdev/bios/dcb.h>
  31
  32 #include <drm/drm_encoder_slave.h>
  33 #include "dispnv04/disp.h"
  34
  35 #define NV_DPMS_CLEARED 0x80
  36
  37 struct nvkm_i2c_port;
  38
  39 struct nouveau_encoder {
  40         struct drm_encoder_slave base;
  41
  42         struct dcb_output *dcb;
  43         int or;
  44
  45         struct i2c_adapter *i2c;
  46         struct nvkm_i2c_aux *aux;
  47
  48         /* different to drm_encoder.crtc, this reflects what's
  49          * actually programmed on the hw, not the proposed crtc */
  50         struct drm_crtc *crtc;
  51         u32 ctrl;
  52
  53         struct drm_display_mode mode;
  54         int last_dpms;
  55
  56         struct nv04_output_reg restore;
  57
  58         union {
  59                 struct {
  60                         u8  dpcd[8];
  61                         int link_nr;
  62                         int link_bw;
  63                         u32 datarate;
  64                 } dp;
  65         };
  66
  67         void (*enc_save)(struct drm_encoder *encoder);
  68         void (*enc_restore)(struct drm_encoder *encoder);
  69 };
  70
  71 struct nouveau_encoder *
  72 find_encoder(struct drm_connector *connector, int type);
  73
  74 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
  75 {
  76         struct drm_encoder_slave *slave = to_encoder_slave(enc);
  77
  78         return container_of(slave, struct nouveau_encoder, base);
  79 }
  80
  81 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
  82 {
  83         return &enc->base.base;
  84 }
  85
  86 static inline const struct drm_encoder_slave_funcs *
  87 get_slave_funcs(struct drm_encoder *enc)
  88 {
  89         return to_encoder_slave(enc)->slave_funcs;
  90 }
  91
  92 /* nouveau_dp.c */
  93 int nouveau_dp_detect(struct nouveau_encoder *);
  94
  95 struct nouveau_connector *
  96 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
  97
  98 #endif /* __NOUVEAU_ENCODER_H__ */