Major restructuring

1 files changed, 0 insertions, 79 deletions

diff --git a/kernel/drivers/fb.c b/kernel/drivers/fb.c
deleted file mode 100644
index 7ef1088..0000000
--- a/kernel/drivers/fb.c
+++ /dev/null
@@ -1,79 +0,0 @@
-// MIT License, Copyright (c) 2021 Marvin Borner
-
-#include <assert.h>
-#include <cpu.h>
-#include <def.h>
-#include <errno.h>
-#include <fb.h>
-#include <io.h>
-#include <mem.h>
-#include <mm.h>
-#include <multiboot.h>
-#include <str.h>
-#include <sys.h>
-
-#define FB_SIZE (vbe->height * vbe->pitch)
-
-struct vbe_basic {
-	u8 stuff1[16];
-	u16 pitch;
-	u16 width;
-	u16 height;
-	u8 stuff2[18];
-	u8 *fb;
-	u8 stuff3[212];
-};
-
-PROTECTED static struct vbe_basic *vbe = NULL;
-
-static u32 fb_map_buffer(struct page_dir *dir)
-{
-	assert(vbe);
-	struct memory_range r =
-		virtual_alloc(dir, memory_range_around((u32)vbe->fb, FB_SIZE), MEMORY_USER);
-	return r.base;
-}
-
-static u32 fb_owner = 0;
-static res fb_ioctl(u32 request, void *arg1, void *arg2, void *arg3)
-{
-	UNUSED(arg3);
-
-	switch (request) {
-	case IOCTL_FB_GET: {
-		if (!vbe)
-			return -ENOENT;
-
-		u32 size = MIN(sizeof(*vbe), (u32)arg2);
-		if (!memory_writable_range(memory_range(arg1, size)))
-			return -EFAULT;
-
-		if (fb_owner != 0 && proc_from_pid(fb_owner))
-			return -EBUSY;
-		fb_owner = proc_current()->pid;
-
-		u32 fb = fb_map_buffer(proc_current()->page_dir);
-
-		stac();
-		memcpy(arg1, vbe, size);
-		((struct vbe_basic *)arg1)->fb = (u8 *)fb;
-		clac();
-
-		return EOK;
-	}
-	default:
-		return -EINVAL;
-	}
-}
-
-CLEAR void fb_install(void)
-{
-	vbe = (void *)multiboot_vbe();
-
-	struct io_dev *dev = zalloc(sizeof(*dev));
-	dev->control = fb_ioctl;
-	io_add(IO_FRAMEBUFFER, dev);
-
-	// Set framebuffer range used to prevent unwanted writing
-	physical_set_used(memory_range_around((u32)vbe->fb, FB_SIZE));
-}