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nouveau_encoder.h revision 1.2 
      1 /*	$NetBSD: nouveau_encoder.h,v 1.2 2018/08/27 04:58:24 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2008 Maarten Maathuis.
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining
      8  * a copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sublicense, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice (including the
     16  * next paragraph) shall be included in all copies or substantial
     17  * portions of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     22  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     23  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     24  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     25  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     26  *
     27  */
     28 
     29 #ifndef __NOUVEAU_ENCODER_H__
     30 #define __NOUVEAU_ENCODER_H__
     31 
     32 #include <subdev/bios/dcb.h>
     33 
     34 #include <drm/drm_encoder_slave.h>
     35 #include "dispnv04/disp.h"
     36 
     37 #define NV_DPMS_CLEARED 0x80
     38 
     39 struct nvkm_i2c_port;
     40 
     41 struct nouveau_encoder {
     42 	struct drm_encoder_slave base;
     43 
     44 	struct dcb_output *dcb;
     45 	int or;
     46 
     47 	struct i2c_adapter *i2c;
     48 	struct nvkm_i2c_aux *aux;
     49 
     50 	/* different to drm_encoder.crtc, this reflects what's
     51 	 * actually programmed on the hw, not the proposed crtc */
     52 	struct drm_crtc *crtc;
     53 	u32 ctrl;
     54 
     55 	struct drm_display_mode mode;
     56 	int last_dpms;
     57 
     58 	struct nv04_output_reg restore;
     59 
     60 	union {
     61 		struct {
     62 			u8  dpcd[8];
     63 			int link_nr;
     64 			int link_bw;
     65 			u32 datarate;
     66 		} dp;
     67 	};
     68 };
     69 
     70 struct nouveau_encoder *
     71 find_encoder(struct drm_connector *connector, int type);
     72 
     73 static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
     74 {
     75 	struct drm_encoder_slave *slave = to_encoder_slave(enc);
     76 
     77 	return container_of(slave, struct nouveau_encoder, base);
     78 }
     79 
     80 static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
     81 {
     82 	return &enc->base.base;
     83 }
     84 
     85 static inline struct drm_encoder_slave_funcs *
     86 get_slave_funcs(struct drm_encoder *enc)
     87 {
     88 	return to_encoder_slave(enc)->slave_funcs;
     89 }
     90 
     91 /* nouveau_dp.c */
     92 int nouveau_dp_detect(struct nouveau_encoder *);
     93 
     94 struct nouveau_connector *
     95 nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
     96 
     97 #endif /* __NOUVEAU_ENCODER_H__ */
     98