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 "drm_encoder_slave.h"
  31 #include "nouveau_drv.h"
  32
  33 #define NV_DPMS_CLEARED 0x80
  34
  35 struct dp_train_func {
  36         void (*link_set)(struct drm_device *, struct dcb_entry *, int crtc,
  37                          int nr, u32 bw, bool enhframe);
  38         void (*train_set)(struct drm_device *, struct dcb_entry *, u8 pattern);
  39         void (*train_adj)(struct drm_device *, struct dcb_entry *,
  40                           u8 lane, u8 swing, u8 preem);
  41 };
  42
  43 struct nouveau_encoder {
  44         struct drm_encoder_slave base;
  45
  46         struct dcb_entry *dcb;
  47         int or;
  48
  49         /* different to drm_encoder.crtc, this reflects what's
  50          * actually programmed on the hw, not the proposed crtc */
  51         struct drm_crtc *crtc;
  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
  68 struct nouveau_encoder *
  69 find_encoder(struct drm_connector *connector, int type);
  70
  71 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
  72 {
  73         struct drm_encoder_slave *slave = to_encoder_slave(enc);
  74
  75         return container_of(slave, struct nouveau_encoder, base);
  76 }
  77
  78 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
  79 {
  80         return &enc->base.base;
  81 }
  82
  83 static inline struct drm_encoder_slave_funcs *
  84 get_slave_funcs(struct drm_encoder *enc)
  85 {
  86         return to_encoder_slave(enc)->slave_funcs;
  87 }
  88
  89 /* nouveau_dp.c */
  90 int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
  91                      uint8_t *data, int data_nr);
  92 bool nouveau_dp_detect(struct drm_encoder *);
  93 void nouveau_dp_dpms(struct drm_encoder *, int mode, u32 datarate,
  94                      struct dp_train_func *);
  95 u8 *nouveau_dp_bios_data(struct drm_device *, struct dcb_entry *, u8 **);
  96
  97 struct nouveau_connector *
  98 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
  99 int nv50_sor_create(struct drm_connector *, struct dcb_entry *);
 100 void nv50_sor_dp_calc_tu(struct drm_device *, int, int, u32, u32);
 101 int nv50_dac_create(struct drm_connector *, struct dcb_entry *);
 102
 103
 104 #endif /* __NOUVEAU_ENCODER_H__ */