62 lines · c
1/* SPDX-License-Identifier: MIT */2/* Copyright (C) 2006-2016 Oracle Corporation */3 4#ifndef __VBOXVIDEO_GUEST_H__5#define __VBOXVIDEO_GUEST_H__6 7#include <linux/genalloc.h>8#include "vboxvideo.h"9 10/*11 * Structure grouping the context needed for sending graphics acceleration12 * information to the host via VBVA. Each screen has its own VBVA buffer.13 */14struct vbva_buf_ctx {15 /* Offset of the buffer in the VRAM section for the screen */16 u32 buffer_offset;17 /* Length of the buffer in bytes */18 u32 buffer_length;19 /* Set if we wrote to the buffer faster than the host could read it */20 bool buffer_overflow;21 /* VBVA record that we are currently preparing for the host, or NULL */22 struct vbva_record *record;23 /*24 * Pointer to the VBVA buffer mapped into the current address space.25 * Will be NULL if VBVA is not enabled.26 */27 struct vbva_buffer *vbva;28};29 30int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location);31int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps);32int hgsmi_test_query_conf(struct gen_pool *ctx);33int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret);34int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,35 u32 hot_x, u32 hot_y, u32 width, u32 height,36 u8 *pixels, u32 len);37int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,38 u32 x, u32 y, u32 *x_host, u32 *y_host);39 40bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,41 struct vbva_buffer *vbva, s32 screen);42void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,43 s32 screen);44bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,45 struct gen_pool *ctx);46void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx);47bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,48 const void *p, u32 len);49void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,50 u32 buffer_offset, u32 buffer_length);51 52void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,53 s32 origin_x, s32 origin_y, u32 start_offset,54 u32 pitch, u32 width, u32 height,55 u16 bpp, u16 flags);56int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,57 u32 width, u32 height);58int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,59 struct vbva_modehint *hints);60 61#endif62