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1/*2 * Copyright (C) 2008 Maarten Maathuis.3 * All Rights Reserved.4 *5 * Permission is hereby granted, free of charge, to any person obtaining6 * a copy of this software and associated documentation files (the7 * "Software"), to deal in the Software without restriction, including8 * without limitation the rights to use, copy, modify, merge, publish,9 * distribute, sublicense, and/or sell copies of the Software, and to10 * permit persons to whom the Software is furnished to do so, subject to11 * the following conditions:12 *13 * The above copyright notice and this permission notice (including the14 * next paragraph) shall be included in all copies or substantial15 * 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 OF19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION23 * 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#include <nvif/outp.h>30#include <subdev/bios/dcb.h>31 32#include <drm/display/drm_dp_helper.h>33#include <drm/display/drm_dp_mst_helper.h>34#include <drm/drm_encoder_slave.h>35 36#include "dispnv04/disp.h"37 38struct nv50_head_atom;39struct nouveau_connector;40 41#define NV_DPMS_CLEARED 0x8042 43struct nvkm_i2c_port;44 45struct nouveau_encoder {46 struct drm_encoder_slave base;47 48 struct dcb_output *dcb;49 struct nvif_outp outp;50 int or;51 52 struct nouveau_connector *conn;53 54 struct i2c_adapter *i2c;55 56 /* different to drm_encoder.crtc, this reflects what's57 * actually programmed on the hw, not the proposed crtc */58 struct drm_crtc *crtc;59 u32 ctrl;60 61 /* Protected by nouveau_drm.audio.lock */62 struct {63 bool enabled;64 } audio;65 66 struct drm_display_mode mode;67 int last_dpms;68 69 struct nv04_output_reg restore;70 71 struct {72 struct {73 bool enabled;74 } hdmi;75 76 struct {77 struct nv50_mstm *mstm;78 79 struct {80 u8 caps[DP_LTTPR_COMMON_CAP_SIZE];81 u8 nr;82 } lttpr;83 84 u8 dpcd[DP_RECEIVER_CAP_SIZE];85 86 struct nvif_outp_dp_rate rate[8];87 int rate_nr;88 89 int link_nr;90 int link_bw;91 92 struct {93 bool mst;94 u8 nr;95 u32 bw;96 } lt;97 98 /* Protects DP state that needs to be accessed outside99 * connector reprobing contexts100 */101 struct mutex hpd_irq_lock;102 103 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];104 struct drm_dp_desc desc;105 106 u8 sink_count;107 } dp;108 };109 110 struct {111 bool dp_interlace : 1;112 } caps;113 114 void (*enc_save)(struct drm_encoder *encoder);115 void (*enc_restore)(struct drm_encoder *encoder);116 void (*update)(struct nouveau_encoder *, u8 head,117 struct nv50_head_atom *, u8 proto, u8 depth);118};119 120struct nv50_mstm {121 struct nouveau_encoder *outp;122 123 struct drm_dp_mst_topology_mgr mgr;124 125 /* Protected under nouveau_encoder->dp.hpd_irq_lock */126 bool can_mst;127 bool is_mst;128 bool suspended;129 130 bool modified;131 bool disabled;132 int links;133};134 135struct nouveau_encoder *136find_encoder(struct drm_connector *connector, int type);137 138static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)139{140 struct drm_encoder_slave *slave = to_encoder_slave(enc);141 142 return container_of(slave, struct nouveau_encoder, base);143}144 145static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)146{147 return &enc->base.base;148}149 150static inline const struct drm_encoder_slave_funcs *151get_slave_funcs(struct drm_encoder *enc)152{153 return to_encoder_slave(enc)->slave_funcs;154}155 156/* nouveau_dp.c */157enum nouveau_dp_status {158 NOUVEAU_DP_NONE,159 NOUVEAU_DP_SST,160 NOUVEAU_DP_MST,161};162 163int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);164bool nouveau_dp_train(struct nouveau_encoder *, bool mst, u32 khz, u8 bpc);165void nouveau_dp_power_down(struct nouveau_encoder *);166bool nouveau_dp_link_check(struct nouveau_connector *);167void nouveau_dp_irq(struct work_struct *);168enum drm_mode_status nv50_dp_mode_valid(struct nouveau_encoder *,169 const struct drm_display_mode *,170 unsigned *clock);171 172struct nouveau_connector *173nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);174struct nouveau_connector *175nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp);176 177int nv50_mstm_detect(struct nouveau_encoder *encoder);178void nv50_mstm_remove(struct nv50_mstm *mstm);179bool nv50_mstm_service(struct nouveau_drm *drm,180 struct nouveau_connector *nv_connector,181 struct nv50_mstm *mstm);182#endif /* __NOUVEAU_ENCODER_H__ */183