remove "done" folders, label "bs/droneenter, bs/dronelook, and bs/dronevanish files and functions"

src/core1/io/sprawdma.c

@@ -0,0 +1,16 @@
+#include <os_internal.h>
+#include <rcp.h>
+#include "osint.h"
+
+s32 __osSpRawStartDma(s32 direction, u32 devAddr, void *dramAddr, u32 size)
+{
+    if (__osSpDeviceBusy())
+        return -1;
+    IO_WRITE(SP_MEM_ADDR_REG, devAddr);
+    IO_WRITE(SP_DRAM_ADDR_REG, osVirtualToPhysical(dramAddr));
+    if (direction == OS_READ)
+        IO_WRITE(SP_WR_LEN_REG, size - 1);
+    else
+        IO_WRITE(SP_RD_LEN_REG, size - 1);
+    return 0;
+}