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1/* SPDX-License-Identifier: MIT */2#ifndef __NOUVEAU_VGA_H__3#define __NOUVEAU_VGA_H__4#include <core/subdev.h>5 6/* access to various legacy io ports */7u8 nvkm_rdport(struct nvkm_device *, int head, u16 port);8void nvkm_wrport(struct nvkm_device *, int head, u16 port, u8 value);9 10/* VGA Sequencer */11u8 nvkm_rdvgas(struct nvkm_device *, int head, u8 index);12void nvkm_wrvgas(struct nvkm_device *, int head, u8 index, u8 value);13 14/* VGA Graphics */15u8 nvkm_rdvgag(struct nvkm_device *, int head, u8 index);16void nvkm_wrvgag(struct nvkm_device *, int head, u8 index, u8 value);17 18/* VGA CRTC */19u8 nvkm_rdvgac(struct nvkm_device *, int head, u8 index);20void nvkm_wrvgac(struct nvkm_device *, int head, u8 index, u8 value);21 22/* VGA indexed port access dispatcher */23u8 nvkm_rdvgai(struct nvkm_device *, int head, u16 port, u8 index);24void nvkm_wrvgai(struct nvkm_device *, int head, u16 port, u8 index, u8 value);25 26bool nvkm_lockvgac(struct nvkm_device *, bool lock);27u8 nvkm_rdvgaowner(struct nvkm_device *);28void nvkm_wrvgaowner(struct nvkm_device *, u8);29#endif30