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_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
  37struct nvkm_i2c_port;
  38
  39struct nouveau_encoder {
  40        struct drm_encoder_slave base;
  41
  42        struct dcb_output *dcb;
  43        int or;
  44        struct nvkm_i2c_port *i2c;
  45
  46        /* different to drm_encoder.crtc, this reflects what's
  47         * actually programmed on the hw, not the proposed crtc */
  48        struct drm_crtc *crtc;
  49        u32 ctrl;
  50
  51        struct drm_display_mode mode;
  52        int last_dpms;
  53
  54        struct nv04_output_reg restore;
  55
  56        union {
  57                struct {
  58                        u8  dpcd[8];
  59                        int link_nr;
  60                        int link_bw;
  61                        u32 datarate;
  62                } dp;
  63        };
  64};
  65
  66struct nouveau_encoder *
  67find_encoder(struct drm_connector *connector, int type);
  68
  69static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
  70{
  71        struct drm_encoder_slave *slave = to_encoder_slave(enc);
  72
  73        return container_of(slave, struct nouveau_encoder, base);
  74}
  75
  76static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
  77{
  78        return &enc->base.base;
  79}
  80
  81static inline struct drm_encoder_slave_funcs *
  82get_slave_funcs(struct drm_encoder *enc)
  83{
  84        return to_encoder_slave(enc)->slave_funcs;
  85}
  86
  87/* nouveau_dp.c */
  88int nouveau_dp_detect(struct nouveau_encoder *);
  89
  90struct nouveau_connector *
  91nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
  92
  93#endif /* __NOUVEAU_ENCODER_H__ */
  94