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 <drm/drm_dp_mst_helper.h> 34 #include "dispnv04/disp.h" 35 struct nv50_head_atom; 36 struct nouveau_connector; 37 38 #define NV_DPMS_CLEARED 0x80 39 40 struct nvkm_i2c_port; 41 42 struct nouveau_encoder { 43 struct drm_encoder_slave base; 44 45 struct dcb_output *dcb; 46 int or; 47 int link; 48 49 struct i2c_adapter *i2c; 50 struct nvkm_i2c_aux *aux; 51 52 /* different to drm_encoder.crtc, this reflects what's 53 * actually programmed on the hw, not the proposed crtc */ 54 struct drm_crtc *crtc; 55 u32 ctrl; 56 57 /* Protected by nouveau_drm.audio.lock */ 58 struct { 59 bool enabled; 60 struct drm_connector *connector; 61 } audio; 62 63 struct drm_display_mode mode; 64 int last_dpms; 65 66 struct nv04_output_reg restore; 67 68 union { 69 struct { 70 struct nv50_mstm *mstm; 71 int link_nr; 72 int link_bw; 73 74 /* Protects DP state that needs to be accessed outside 75 * connector reprobing contexts 76 */ 77 struct mutex hpd_irq_lock; 78 79 u8 dpcd[DP_RECEIVER_CAP_SIZE]; 80 u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS]; 81 struct drm_dp_desc desc; 82 83 u8 sink_count; 84 } dp; 85 }; 86 87 struct { 88 bool dp_interlace : 1; 89 } caps; 90 91 void (*enc_save)(struct drm_encoder *encoder); 92 void (*enc_restore)(struct drm_encoder *encoder); 93 void (*update)(struct nouveau_encoder *, u8 head, 94 struct nv50_head_atom *, u8 proto, u8 depth); 95 }; 96 97 struct nv50_mstm { 98 struct nouveau_encoder *outp; 99 100 struct drm_dp_mst_topology_mgr mgr; 101 102 /* Protected under nouveau_encoder->dp.hpd_irq_lock */ 103 bool can_mst; 104 bool is_mst; 105 bool suspended; 106 107 bool modified; 108 bool disabled; 109 int links; 110 }; 111 112 struct nouveau_encoder * 113 find_encoder(struct drm_connector *connector, int type); 114 115 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc) 116 { 117 struct drm_encoder_slave *slave = to_encoder_slave(enc); 118 119 return container_of(slave, struct nouveau_encoder, base); 120 } 121 122 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc) 123 { 124 return &enc->base.base; 125 } 126 127 static inline const struct drm_encoder_slave_funcs * 128 get_slave_funcs(struct drm_encoder *enc) 129 { 130 return to_encoder_slave(enc)->slave_funcs; 131 } 132 133 /* nouveau_dp.c */ 134 enum nouveau_dp_status { 135 NOUVEAU_DP_NONE, 136 NOUVEAU_DP_SST, 137 NOUVEAU_DP_MST, 138 }; 139 140 int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *); 141 void nouveau_dp_irq(struct nouveau_drm *drm, 142 struct nouveau_connector *nv_connector); 143 enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *, 144 struct nouveau_encoder *, 145 const struct drm_display_mode *, 146 unsigned *clock); 147 148 struct nouveau_connector * 149 nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 150 struct nouveau_connector * 151 nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 152 153 int nv50_mstm_detect(struct nouveau_encoder *encoder); 154 void nv50_mstm_remove(struct nv50_mstm *mstm); 155 bool nv50_mstm_service(struct nouveau_drm *drm, 156 struct nouveau_connector *nv_connector, 157 struct nv50_mstm *mstm); 158 #endif /* __NOUVEAU_ENCODER_H__ */ 159