stos: bootvid: Add boot console support

Signed-off-by: Chloe M. <chloe@mensia.org>
2026-06-22 03:40:34 +00:00
parent b2e4f35e9f
commit 26139ff1ab
5 changed files with 129 additions and 0 deletions
@@ -9,11 +9,64 @@
 #include <drivers/bootvid/fbio.h>
 #include <ke/bpal.h>
 #include <ex/trace.h>
+#include <stdef.h>
+#include "flanterm.h"
+#include "flanterm_backends/fb.h"

 #define DTRACE(Fmt, ...) \
    TRACE("[ BOOTVID ]: " Fmt, ##__VA_ARGS__)

+/* Bootcons attributes */
+#define DEFAULT_BG 0x000000
+#define DEFAULT_FG 0xFFB000
+
 static BPAL_FRAMEBUFFER Framebuffer;
+static struct flanterm_context *FtCtx = NULL;
+static BOOLEAN BootConsEnabled = false;
+static BOOTCONS_ATTR DefaultConsAttr = {
+    .Foreground = DEFAULT_FG,
+    .Background = DEFAULT_BG
+};
+
+VOID
+BootVidInitCons(BOOTCONS_ATTR *Attr)
+{
+    if (BootConsEnabled) {
+        BootVidDeInitCons();
+    }
+
+    if (Attr == NULL) {
+        Attr = &DefaultConsAttr;
+    }
+
+    FtCtx = flanterm_fb_init(
+        NULL,
+        NULL,
+        Framebuffer.Address,
+        Framebuffer.Width,
+        Framebuffer.Height,
+        Framebuffer.Pitch,
+        Framebuffer.RedMaskSize,
+        Framebuffer.RedMaskShift,
+        Framebuffer.GreenMaskSize,
+        Framebuffer.GreenMaskShift,
+        Framebuffer.BlueMaskSize,
+        Framebuffer.BlueMaskShift,
+        NULL,
+        NULL,
+        NULL,
+        &Attr->Background,
+        &Attr->Foreground,
+        NULL,
+        NULL,
+        NULL,
+        0, 0, 0,
+        0, 0, 0, 0
+    );
+
+    BootConsEnabled = true;
+    DTRACE("bootcons enabled\n");
+}

 VOID
 BootVidInit(VOID)
@@ -26,3 +79,35 @@ BootVidInit(VOID)
    DTRACE("framebuffer width: %d\n", Framebuffer.Width);
    DTRACE("framebuffer height: %d\n", Framebuffer.Height);
 }
+
+VOID
+BootVidConsWrite(const CHAR *String, USIZE Length)
+{
+    if (String == NULL || Length == 0) {
+        return;
+    }
+
+    if (!BootConsEnabled) {
+        return;
+    }
+
+    flanterm_write(FtCtx, String, Length);
+}
+
+VOID
+BootVidDeInitCons(VOID)
+{
+    if (!BootConsEnabled) {
+        return;
+    }
+
+    flanterm_deinit(FtCtx, NULL);
+    FtCtx = NULL;
+    BootConsEnabled = false;
+}
+
+BOOLEAN
+BootVidConsEn(VOID)
+{
+    return BootConsEnabled;
+}