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 36 #define NV_DPMS_CLEARED 0x80 37 38 struct nvkm_i2c_port; 39 40 struct nouveau_encoder { 41 struct drm_encoder_slave base; 42 43 struct dcb_output *dcb; 44 int or; 45 46 struct i2c_adapter *i2c; 47 struct nvkm_i2c_aux *aux; 48 49 /* different to drm_encoder.crtc, this reflects what's 50 * actually programmed on the hw, not the proposed crtc */ 51 struct drm_crtc *crtc; 52 u32 ctrl; 53 54 struct drm_display_mode mode; 55 int last_dpms; 56 57 struct nv04_output_reg restore; 58 59 union { 60 struct { 61 struct nv50_mstm *mstm; 62 int link_nr; 63 int link_bw; 64 } dp; 65 }; 66 67 void (*enc_save)(struct drm_encoder *encoder); 68 void (*enc_restore)(struct drm_encoder *encoder); 69 void (*update)(struct nouveau_encoder *, u8 head, 70 struct drm_display_mode *, u8 proto, u8 depth); 71 }; 72 73 struct nouveau_encoder * 74 find_encoder(struct drm_connector *connector, int type); 75 76 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc) 77 { 78 struct drm_encoder_slave *slave = to_encoder_slave(enc); 79 80 return container_of(slave, struct nouveau_encoder, base); 81 } 82 83 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc) 84 { 85 return &enc->base.base; 86 } 87 88 static inline const struct drm_encoder_slave_funcs * 89 get_slave_funcs(struct drm_encoder *enc) 90 { 91 return to_encoder_slave(enc)->slave_funcs; 92 } 93 94 /* nouveau_dp.c */ 95 enum nouveau_dp_status { 96 NOUVEAU_DP_SST, 97 NOUVEAU_DP_MST, 98 }; 99 100 int nouveau_dp_detect(struct nouveau_encoder *); 101 102 struct nouveau_connector * 103 nouveau_encoder_connector_get(struct nouveau_encoder *encoder); 104 105 int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow); 106 void nv50_mstm_remove(struct nv50_mstm *); 107 void nv50_mstm_service(struct nv50_mstm *); 108 #endif /* __NOUVEAU_ENCODER_H__ */ 109