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/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 38 struct nv50_head_atom; 39 struct nouveau_connector; 40 41 #define NV_DPMS_CLEARED 0x80 42 43 struct nvkm_i2c_port; 44 45 struct nouveau_encoder { 46 struct drm_encoder_slave base; 47 48 struct dcb_output *dcb; 49 int or; 50 int link; 51 52 struct i2c_adapter *i2c; 53 struct nvkm_i2c_aux *aux; 54 55 /* different to drm_encoder.crtc, this reflects what's 56 * actually programmed on the hw, not the proposed crtc */ 57 struct drm_crtc *crtc; 58 u32 ctrl; 59 60 /* Protected by nouveau_drm.audio.lock */ 61 struct { 62 bool enabled; 63 struct drm_connector *connector; 64 } audio; 65 66 struct drm_display_mode mode; 67 int last_dpms; 68 69 struct nv04_output_reg restore; 70 71 union { 72 struct { 73 struct nv50_mstm *mstm; 74 int link_nr; 75 int link_bw; 76 77 /* Protects DP state that needs to be accessed outside 78 * connector reprobing contexts 79 */ 80 struct mutex hpd_irq_lock; 81 82 u8 dpcd[DP_RECEIVER_CAP_SIZE]; 83 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS]; 84 struct drm_dp_desc desc; 85 86 u8 sink_count; 87 } dp; 88 }; 89 90 struct { 91 bool dp_interlace : 1; 92 } caps; 93 94 void (*enc_save)(struct drm_encoder *encoder); 95 void (*enc_restore)(struct drm_encoder *encoder); 96 void (*update)(struct nouveau_encoder *, u8 head, 97 struct nv50_head_atom *, u8 proto, u8 depth); 98 }; 99 100 struct nv50_mstm { 101 struct nouveau_encoder *outp; 102 103 struct drm_dp_mst_topology_mgr mgr; 104 105 /* Protected under nouveau_encoder->dp.hpd_irq_lock */ 106 bool can_mst; 107 bool is_mst; 108 bool suspended; 109 110 bool modified; 111 bool disabled; 112 int links; 113 }; 114 115 struct nouveau_encoder * 116 find_encoder(struct drm_connector *connector, int type); 117 118 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc) 119 { 120 struct drm_encoder_slave *slave = to_encoder_slave(enc); 121 122 return container_of(slave, struct nouveau_encoder, base); 123 } 124 125 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc) 126 { 127 return &enc->base.base; 128 } 129 130 static inline const struct drm_encoder_slave_funcs * 131 get_slave_funcs(struct drm_encoder *enc) 132 { 133 return to_encoder_slave(enc)->slave_funcs; 134 } 135 136 /* nouveau_dp.c */ 137 enum nouveau_dp_status { 138 NOUVEAU_DP_NONE, 139 NOUVEAU_DP_SST, 140 NOUVEAU_DP_MST, 141 }; 142 143 int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *); 144 void nouveau_dp_irq(struct nouveau_drm *drm, 145 struct nouveau_connector *nv_connector); 146 enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *, 147 struct nouveau_encoder *, 148 const struct drm_display_mode *, 149 unsigned *clock); 150 151 struct nouveau_connector * 152 nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 153 struct nouveau_connector * 154 nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 155 156 int nv50_mstm_detect(struct nouveau_encoder *encoder); 157 void nv50_mstm_remove(struct nv50_mstm *mstm); 158 bool nv50_mstm_service(struct nouveau_drm *drm, 159 struct nouveau_connector *nv_connector, 160 struct nv50_mstm *mstm); 161 #endif /* __NOUVEAU_ENCODER_H__ */ 162