/*
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* Copyright (C) 2006-2017 Oracle Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __VBOXVIDEO_GUEST_H__
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#define __VBOXVIDEO_GUEST_H__
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#include <linux/genalloc.h>
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#include "vboxvideo.h"
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/**
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* Structure grouping the context needed for sending graphics acceleration
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* information to the host via VBVA. Each screen has its own VBVA buffer.
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*/
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struct vbva_buf_ctx {
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/** Offset of the buffer in the VRAM section for the screen */
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u32 buffer_offset;
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/** Length of the buffer in bytes */
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u32 buffer_length;
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/** Set if we wrote to the buffer faster than the host could read it */
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bool buffer_overflow;
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/** VBVA record that we are currently preparing for the host, or NULL */
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struct vbva_record *record;
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/**
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* Pointer to the VBVA buffer mapped into the current address space.
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* Will be NULL if VBVA is not enabled.
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*/
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struct vbva_buffer *vbva;
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};
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/**
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* @name Base HGSMI APIs
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* @{
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*/
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int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location);
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int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps);
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int hgsmi_test_query_conf(struct gen_pool *ctx);
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int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret);
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int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
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u32 hot_x, u32 hot_y, u32 width, u32 height,
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u8 *pixels, u32 len);
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int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
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u32 x, u32 y, u32 *x_host, u32 *y_host);
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/** @} */
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/**
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* @name VBVA APIs
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* @{
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*/
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bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
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struct vbva_buffer *vbva, s32 screen);
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void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
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s32 screen);
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bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
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struct gen_pool *ctx);
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void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx);
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bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
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const void *p, u32 len);
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void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
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u32 buffer_offset, u32 buffer_length);
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/** @} */
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/**
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* @name Modesetting APIs
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* @{
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*/
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void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
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s32 origin_x, s32 origin_y, u32 start_offset,
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u32 pitch, u32 width, u32 height,
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u16 bpp, u16 flags);
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int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
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u32 width, u32 height);
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int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
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struct vbva_modehint *hints);
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/** @} */
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#endif
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