forked from Minki/linux
6c22ea3747
These exist to give NVKM information on the set of display paths that the DD needs to be active at any given time. Previously, the supervisor attempted to determine this solely from OR state, but there's a few configurations where this information on its own isn't enough to determine the specific display paths in question: - ANX9805, where the PIOR protocol for both DP and TMDS is TMDS. - On a device using DCB Switched Outputs. - On GM20x and newer, with a crossbar between the SOR and macro links. After this commit, the DD tells NVKM *exactly* which display path it's attempting a modeset on. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/*
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* Copyright (C) 2008 Maarten Maathuis.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef __NOUVEAU_ENCODER_H__
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#define __NOUVEAU_ENCODER_H__
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#include <subdev/bios/dcb.h>
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#include <drm/drm_encoder_slave.h>
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#include <drm/drm_dp_mst_helper.h>
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#include "dispnv04/disp.h"
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#define NV_DPMS_CLEARED 0x80
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struct nvkm_i2c_port;
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struct nouveau_encoder {
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struct drm_encoder_slave base;
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struct dcb_output *dcb;
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int or;
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int link;
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struct i2c_adapter *i2c;
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struct nvkm_i2c_aux *aux;
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/* different to drm_encoder.crtc, this reflects what's
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* actually programmed on the hw, not the proposed crtc */
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struct drm_crtc *crtc;
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u32 ctrl;
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struct drm_display_mode mode;
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int last_dpms;
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struct nv04_output_reg restore;
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union {
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struct {
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struct nv50_mstm *mstm;
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int link_nr;
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int link_bw;
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} dp;
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};
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void (*enc_save)(struct drm_encoder *encoder);
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void (*enc_restore)(struct drm_encoder *encoder);
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void (*update)(struct nouveau_encoder *, u8 head,
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struct drm_display_mode *, u8 proto, u8 depth);
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};
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struct nouveau_encoder *
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find_encoder(struct drm_connector *connector, int type);
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static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
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{
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struct drm_encoder_slave *slave = to_encoder_slave(enc);
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return container_of(slave, struct nouveau_encoder, base);
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}
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static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
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{
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return &enc->base.base;
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}
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static inline const struct drm_encoder_slave_funcs *
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get_slave_funcs(struct drm_encoder *enc)
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{
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return to_encoder_slave(enc)->slave_funcs;
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}
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/* nouveau_dp.c */
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enum nouveau_dp_status {
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NOUVEAU_DP_SST,
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NOUVEAU_DP_MST,
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};
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int nouveau_dp_detect(struct nouveau_encoder *);
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struct nouveau_connector *
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nouveau_encoder_connector_get(struct nouveau_encoder *encoder);
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int nv50_mstm_detect(struct nv50_mstm *, u8 dpcd[8], int allow);
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void nv50_mstm_remove(struct nv50_mstm *);
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void nv50_mstm_service(struct nv50_mstm *);
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#endif /* __NOUVEAU_ENCODER_H__ */
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