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 #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 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 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's 57 * 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 outside 99 * connector reprobing contexts 100 */ 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 }; 119 120 struct 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 }; 134 135 struct nouveau_encoder * 136 find_encoder(struct drm_connector *connector, int type); 137 138 static 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 } 144 145 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc) 146 { 147 return &enc->base.base; 148 } 149 150 static inline const struct drm_encoder_slave_funcs * 151 get_slave_funcs(struct drm_encoder *enc) 152 { 153 return to_encoder_slave(enc)->slave_funcs; 154 } 155 156 /* nouveau_dp.c */ 157 enum nouveau_dp_status { 158 NOUVEAU_DP_NONE, 159 NOUVEAU_DP_SST, 160 NOUVEAU_DP_MST, 161 }; 162 163 int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *); 164 bool nouveau_dp_train(struct nouveau_encoder *, bool mst, u32 khz, u8 bpc); 165 void nouveau_dp_power_down(struct nouveau_encoder *); 166 bool nouveau_dp_link_check(struct nouveau_connector *); 167 void nouveau_dp_irq(struct work_struct *); 168 enum drm_mode_status nv50_dp_mode_valid(struct nouveau_encoder *, 169 const struct drm_display_mode *, 170 unsigned *clock); 171 172 struct nouveau_connector * 173 nv50_outp_get_new_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 174 struct nouveau_connector * 175 nv50_outp_get_old_connector(struct drm_atomic_state *state, struct nouveau_encoder *outp); 176 177 int nv50_mstm_detect(struct nouveau_encoder *encoder); 178 void nv50_mstm_remove(struct nv50_mstm *mstm); 179 bool nv50_mstm_service(struct nouveau_drm *drm, 180 struct nouveau_connector *nv_connector, 181 struct nv50_mstm *mstm); 182 #endif /* __NOUVEAU_ENCODER_H__ */ 183