1 files changed, 0 insertions, 146 deletions
diff --git a/src/kernel/arch/i386/driver/fsroot.c b/src/kernel/arch/i386/driver/fsroot.c
deleted file mode 100644
index 8b1b307..0000000
--- a/src/kernel/arch/i386/driver/fsroot.c
+++ /dev/null
@@ -1,146 +0,0 @@
-#include <kernel/arch/i386/ata.h>
-#include <kernel/mem/virt.h>
-#include <kernel/panic.h>
-#include <kernel/proc.h>
-#include <kernel/util.h>
-#include <kernel/arch/i386/driver/fsroot.h>
-#include <shared/mem.h>
-#include <stdbool.h>
-
-enum {
-	HANDLE_ROOT,
-	HANDLE_VGA,
-	HANDLE_ATA_ROOT,
-	HANDLE_ATA,
-	_SKIP = HANDLE_ATA + 4,
-};
-
-static bool exacteq(struct vfs_request *req, const char *str) {
-	size_t len = strlen(str);
-	assert(req->input.kern);
-	return req->input.len == len && !memcmp(req->input.buf_kern, str, len);
-}
-
-/* truncates the length */
-static void req_preprocess(struct vfs_request *req, size_t max_len) {
-	if (req->offset < 0) {
-		// TODO negative offsets
-		req->offset = 0;
-	}
-
-	if (req->offset >= capped_cast32(max_len)) {
-		req->input.len = 0;
-		req->output.len = 0;
-		req->offset = max_len;
-		return;
-	}
-
-	req->input.len  = min(req->input.len,  max_len - req->offset);
-	req->output.len = min(req->output.len, max_len - req->offset);
-
-	assert(req->input.len + req->offset <= max_len);
-	assert(req->input.len + req->offset <= max_len);
-}
-
-
-static int handle(struct vfs_request *req) {
-	assert(req->caller);
-	int id = (int)req->id;
-	switch (req->type) {
-		case VFSOP_OPEN:
-			if (exacteq(req, "/"))		return HANDLE_ROOT;
-			if (exacteq(req, "/vga"))	return HANDLE_VGA;
-
-			if (exacteq(req, "/ata/"))	return HANDLE_ATA_ROOT;
-			if (exacteq(req, "/ata/0"))
-				return ata_available(0) ? HANDLE_ATA+0 : -1;
-			if (exacteq(req, "/ata/1"))
-				return ata_available(1) ? HANDLE_ATA+1 : -1;
-			if (exacteq(req, "/ata/2"))
-				return ata_available(2) ? HANDLE_ATA+2 : -1;
-			if (exacteq(req, "/ata/3"))
-				return ata_available(3) ? HANDLE_ATA+3 : -1;
-
-			return -1;
-
-		case VFSOP_READ:
-			switch (id) {
-				case HANDLE_ROOT: {
-					// TODO document directory read format
-					const char src[] =
-						"vga\0"
-						"com1\0"
-						"ps2\0"
-						"ata/";
-					req_preprocess(req, sizeof src);
-					virt_cpy_to(req->caller->pages, req->output.buf,
-							src + req->offset, req->output.len);
-					return req->output.len;
-				}
-				case HANDLE_VGA: {
-					char *vga = (void*)0xB8000;
-					req_preprocess(req, 80*25*2);
-					virt_cpy_to(req->caller->pages, req->output.buf,
-							vga + req->offset, req->output.len);
-					return req->output.len;
-				}
-				case HANDLE_ATA_ROOT: {
-					char list[8] = {};
-					size_t len = 0;
-					for (int i = 0; i < 4; i++) {
-						if (ata_available(i)) {
-							list[len] = '0' + i;
-							len += 2;
-						}
-					}
-					req_preprocess(req, len);
-					virt_cpy_to(req->caller->pages, req->output.buf,
-							list + req->offset, req->output.len);
-					return req->output.len;
-				}
-				case HANDLE_ATA:   case HANDLE_ATA+1:
-				case HANDLE_ATA+2: case HANDLE_ATA+3: {
-					if (req->offset < 0) return 0;
-					char buf[512];
-					uint32_t sector = req->offset / 512;
-					size_t len = min(req->output.len, 512 - ((size_t)req->offset & 511));
-					ata_read(id - HANDLE_ATA, sector, buf);
-					virt_cpy_to(req->caller->pages, req->output.buf, buf, len);
-					return len;
-				}
-				default: panic_invalid_state();
-			}
-
-		case VFSOP_WRITE:
-			switch (id) {
-				case HANDLE_VGA: {
-					void *vga = (void*)0xB8000;
-					req_preprocess(req, 80*25*2);
-					virt_cpy_from(req->caller->pages, vga + req->offset,
-							req->input.buf, req->input.len);
-					return req->input.len;
-				}
-				default: return -1;
-			}
-
-		case VFSOP_CLOSE:
-			return 0;
-
-		default: panic_invalid_state();
-	}
-}
-
-static void accept(struct vfs_request *req) {
-	if (req->caller) {
-		vfsreq_finish_short(req, handle(req));
-	} else {
-		vfsreq_finish_short(req, -1);
-	}
-}
-
-static bool is_ready(struct vfs_backend __attribute__((unused)) *self) {
-	return true;
-}
-
-static struct vfs_backend backend = BACKEND_KERN(is_ready, accept);
-void vfs_root_init(void) { vfs_mount_root_register("", &backend); }