acrn-hypervisor/devicemodel/core/console.c

92 lines
2.4 KiB
C
Raw Normal View History

/*-
* Copyright (c) 2015 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include "gc.h"
#include "console.h"
static struct {
struct gfx_ctx *gc;
fb_render_func_t fb_render_cb;
void *fb_arg;
kbd_event_func_t kbd_event_cb;
void *kbd_arg;
int kbd_priority;
ptr_event_func_t ptr_event_cb;
void *ptr_arg;
int ptr_priority;
} console;
struct gfx_ctx_image *
console_get_image(void)
{
struct gfx_ctx_image *image;
image = gc_get_image(console.gc);
return image;
}
void
console_kbd_register(kbd_event_func_t event_cb, void *arg, int pri)
{
if (pri > console.kbd_priority) {
console.kbd_event_cb = event_cb;
console.kbd_arg = arg;
console.kbd_priority = pri;
}
}
void
console_kbd_unregister(void)
{
console.kbd_event_cb = NULL;
console.kbd_arg = NULL;
console.kbd_priority = 0;
}
void
console_ptr_register(ptr_event_func_t event_cb, void *arg, int pri)
{
if (pri > console.ptr_priority) {
console.ptr_event_cb = event_cb;
console.ptr_arg = arg;
console.ptr_priority = pri;
}
}
void
console_ptr_unregister()
{
console.ptr_event_cb = NULL;
console.ptr_arg = NULL;
console.ptr_priority = 0;
}