1/* $NetBSD: nouveau_encoder.h,v 1.3 2021/12/18 23:45:32 riastradh Exp $ */ 2 3/* 4 * Copyright (C) 2008 Maarten Maathuis. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 */ 28 29#ifndef __NOUVEAU_ENCODER_H__ 30#define __NOUVEAU_ENCODER_H__ 31 32#include <subdev/bios/dcb.h> 33 34#include <drm/drm_encoder_slave.h> 35#include <drm/drm_dp_mst_helper.h> 36#include "dispnv04/disp.h" 37struct nv50_head_atom; 38 39#define NV_DPMS_CLEARED 0x80 40 41struct nvkm_i2c_port; 42 43struct nouveau_encoder { 44 struct drm_encoder_slave base; 45 46 struct dcb_output *dcb; 47 int or; 48 int link; 49 50 struct i2c_adapter *i2c; 51 struct nvkm_i2c_aux *aux; 52 53 /* different to drm_encoder.crtc, this reflects what's 54 * actually programmed on the hw, not the proposed crtc */ 55 struct drm_crtc *crtc; 56 u32 ctrl; 57 58 struct drm_display_mode mode; 59 int last_dpms; 60 61 struct nv04_output_reg restore; 62 63 union { 64 struct { 65 struct nv50_mstm *mstm; 66 int link_nr; 67 int link_bw; 68 } dp; 69 }; 70 71 void (*enc_save)(struct drm_encoder *encoder); 72 void (*enc_restore)(struct drm_encoder *encoder); 73 void (*update)(struct nouveau_encoder *, u8 head, 74 struct nv50_head_atom *, u8 proto, u8 depth); 75}; 76 77struct nouveau_encoder * 78find_encoder(struct drm_connector *connector, int type); 79 80static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc) 81{ 82 struct drm_encoder_slave *slave = to_encoder_slave(enc); 83 84 return container_of(slave, struct nouveau_encoder, base); 85} 86 87static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc) 88{ 89 return &enc->base.base; 90} 91 92static inline const struct drm_encoder_slave_funcs * 93get_slave_funcs(struct drm_encoder *enc) 94{ 95 return to_encoder_slave(enc)->slave_funcs; 96} 97 98/* nouveau_dp.c */ 99enum nouveau_dp_status { 100 NOUVEAU_DP_SST, 101 NOUVEAU_DP_MST, 102}; 103 104int nouveau_dp_detect(struct nouveau_encoder *); 105 106struct nouveau_connector * 107nouveau_encoder_connector_get(struct nouveau_encoder *encoder); 108 109int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow); 110void nv50_mstm_remove(struct nv50_mstm *); 111void nv50_mstm_service(struct nv50_mstm *); 112#endif /* __NOUVEAU_ENCODER_H__ */ 113