Chloe M.
126 lines
2.3 KiB
C
126 lines
2.3 KiB
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: Bootvid driver
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* Author: Chloe M.
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*/
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#include <drivers/bootvid/fbio.h>
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#include <ke/bpal.h>
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#include <ex/trace.h>
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#include <stdef.h>
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#include "flanterm.h"
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#include "flanterm_backends/fb.h"
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#define DTRACE(Fmt, ...) \
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TRACE("[ BOOTVID ]: " Fmt, ##__VA_ARGS__)
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/* Bootcons attributes */
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#define DEFAULT_BG 0x000000
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#define DEFAULT_FG 0xFFB000
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static BPAL_FRAMEBUFFER Framebuffer;
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static struct flanterm_context *FtCtx = NULL;
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static BOOLEAN BootConsEnabled = false;
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static BOOTCONS_ATTR DefaultConsAttr = {
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.Foreground = DEFAULT_FG,
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.Background = DEFAULT_BG
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};
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VOID
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BootVidInitCons(BOOTCONS_ATTR *Attr)
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{
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if (BootConsEnabled) {
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BootVidDeInitCons();
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}
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if (Attr == NULL) {
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Attr = &DefaultConsAttr;
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}
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FtCtx = flanterm_fb_init(
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NULL,
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NULL,
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Framebuffer.Address,
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Framebuffer.Width,
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Framebuffer.Height,
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Framebuffer.Pitch,
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Framebuffer.RedMaskSize,
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Framebuffer.RedMaskShift,
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Framebuffer.GreenMaskSize,
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Framebuffer.GreenMaskShift,
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Framebuffer.BlueMaskSize,
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Framebuffer.BlueMaskShift,
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NULL,
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NULL,
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NULL,
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&Attr->Background,
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&Attr->Foreground,
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NULL,
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NULL,
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NULL,
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0, 0, 0,
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0, 0, 0, 0
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);
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BootConsEnabled = true;
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DTRACE("bootcons enabled\n");
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}
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VOID
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BootVidInit(VOID)
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{
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BPAL_HANDLE BpalHandle;
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KeBpalGetHandle(&BpalHandle);
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Framebuffer = BpalHandle.Framebuffer;
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DTRACE("framebuffer width: %d\n", Framebuffer.Width);
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DTRACE("framebuffer height: %d\n", Framebuffer.Height);
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}
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VOID
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BootVidConsWrite(const CHAR *String, USIZE Length)
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{
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if (String == NULL || Length == 0) {
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return;
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}
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if (!BootConsEnabled) {
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return;
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}
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flanterm_write(FtCtx, String, Length);
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}
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VOID
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BootVidDeInitCons(VOID)
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{
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if (!BootConsEnabled) {
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return;
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}
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flanterm_deinit(FtCtx, NULL);
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FtCtx = NULL;
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BootConsEnabled = false;
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}
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VOID
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BootVidClear(ULONG Color)
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{
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ULONG *Ptr;
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Ptr = Framebuffer.Address;
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for (USIZE Idx = 0; Idx < Framebuffer.Height * Framebuffer.Pitch; ++Idx) {
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Ptr[Idx] = Color;
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}
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}
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BOOLEAN
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BootVidConsEn(VOID)
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{
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return BootConsEnabled;
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}
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