drivers/gpu/drm/nouveau/include/nvkm/subdev/vga.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NOUVEAU_VGA_H__
   3 #define __NOUVEAU_VGA_H__
   4 #include <core/subdev.h>
   5
   6 /* access to various legacy io ports */
   7 u8   nvkm_rdport(struct nvkm_device *, int head, u16 port);
   8 void nvkm_wrport(struct nvkm_device *, int head, u16 port, u8 value);
   9
  10 /* VGA Sequencer */
  11 u8   nvkm_rdvgas(struct nvkm_device *, int head, u8 index);
  12 void nvkm_wrvgas(struct nvkm_device *, int head, u8 index, u8 value);
  13
  14 /* VGA Graphics */
  15 u8   nvkm_rdvgag(struct nvkm_device *, int head, u8 index);
  16 void nvkm_wrvgag(struct nvkm_device *, int head, u8 index, u8 value);
  17
  18 /* VGA CRTC */
  19 u8   nvkm_rdvgac(struct nvkm_device *, int head, u8 index);
  20 void nvkm_wrvgac(struct nvkm_device *, int head, u8 index, u8 value);
  21
  22 /* VGA indexed port access dispatcher */
  23 u8   nvkm_rdvgai(struct nvkm_device *, int head, u16 port, u8 index);
  24 void nvkm_wrvgai(struct nvkm_device *, int head, u16 port, u8 index, u8 value);
  25
  26 bool nvkm_lockvgac(struct nvkm_device *, bool lock);
  27 u8   nvkm_rdvgaowner(struct nvkm_device *);
  28 void nvkm_wrvgaowner(struct nvkm_device *, u8);
  29 #endif