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/*
* Copyright (C) 2006-2017 Oracle Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "vbox_drv.h"
#include "vbox_err.h"
#include "vboxvideo_guest.h"
#include "vboxvideo_vbe.h"
#include "hgsmi_channels.h"
/**
* Set a video mode via an HGSMI request. The views must have been
* initialised first using @a VBoxHGSMISendViewInfo and if the mode is being
* set on the first display then it must be set first using registers.
* @param ctx The context containing the heap to use
* @param display The screen number
* @param origin_x The horizontal displacement relative to the first scrn
* @param origin_y The vertical displacement relative to the first screen
* @param start_offset The offset of the visible area of the framebuffer
* relative to the framebuffer start
* @param pitch The offset in bytes between the starts of two adjecent
* scan lines in video RAM
* @param width The mode width
* @param height The mode height
* @param bpp The colour depth of the mode
* @param flags Flags
*/
void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
s32 origin_x, s32 origin_y, u32 start_offset,
u32 pitch, u32 width, u32 height,
u16 bpp, u16 flags)
{
struct vbva_infoscreen *p;
p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
VBVA_INFO_SCREEN);
if (!p)
return;
p->view_index = display;
p->origin_x = origin_x;
p->origin_y = origin_y;
p->start_offset = start_offset;
p->line_size = pitch;
p->width = width;
p->height = height;
p->bits_per_pixel = bpp;
p->flags = flags;
hgsmi_buffer_submit(ctx, p);
hgsmi_buffer_free(ctx, p);
}
/**
* Report the rectangle relative to which absolute pointer events should be
* expressed. This information remains valid until the next VBVA resize event
* for any screen, at which time it is reset to the bounding rectangle of all
* virtual screens.
* @param ctx The context containing the heap to use.
* @param origin_x Upper left X co-ordinate relative to the first screen.
* @param origin_y Upper left Y co-ordinate relative to the first screen.
* @param width Rectangle width.
* @param height Rectangle height.
* @returns 0 on success, -errno on failure
*/
int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
u32 width, u32 height)
{
struct vbva_report_input_mapping *p;
p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
VBVA_REPORT_INPUT_MAPPING);
if (!p)
return -ENOMEM;
p->x = origin_x;
p->y = origin_y;
p->cx = width;
p->cy = height;
hgsmi_buffer_submit(ctx, p);
hgsmi_buffer_free(ctx, p);
return 0;
}
/**
* Get most recent video mode hints.
* @param ctx The context containing the heap to use.
* @param screens The number of screens to query hints for, starting at 0.
* @param hints Array of vbva_modehint structures for receiving the hints.
* @returns 0 on success, -errno on failure
*/
int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
struct vbva_modehint *hints)
{
struct vbva_query_mode_hints *p;
size_t size;
if (WARN_ON(!hints))
return -EINVAL;
size = screens * sizeof(struct vbva_modehint);
p = hgsmi_buffer_alloc(ctx, sizeof(*p) + size, HGSMI_CH_VBVA,
VBVA_QUERY_MODE_HINTS);
if (!p)
return -ENOMEM;
p->hints_queried_count = screens;
p->hint_structure_guest_size = sizeof(struct vbva_modehint);
p->rc = VERR_NOT_SUPPORTED;
hgsmi_buffer_submit(ctx, p);
if (RT_FAILURE(p->rc)) {
hgsmi_buffer_free(ctx, p);
return -EIO;
}
memcpy(hints, ((u8 *)p) + sizeof(struct vbva_query_mode_hints), size);
hgsmi_buffer_free(ctx, p);
return 0;
}
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