Squash commits for public release

utils/compilers/DevTreeCompiler/ABI/Structs.py

@@ -0,0 +1,39 @@
+from construct import *
+
+DEVTREE_HEADER_SIGNATURE = "odtr3"
+
+DEVTREE_HEADER = Struct(
+    "signature" / PaddedString(8, "ascii"),
+    "revision" / Int32ul,
+    "flags" / Int32ul,
+    "entries_count" / Int32ul,
+    "name_list_offset" / Int32ul
+)
+
+DEVTREE_ENTRY_FLAGS_MMIO = (1 << 0)
+DEVTREE_ENTRY_TYPE_IO = 0
+DEVTREE_ENTRY_TYPE_FB = 1
+DEVTREE_ENTRY_TYPE_UART = 2
+DEVTREE_ENTRY_TYPE_RAM = 3
+DEVTREE_ENTRY_TYPE_STORAGE = 4
+DEVTREE_ENTRY_TYPE_BUS_CONTROLLER = 5
+DEVTREE_ENTRY_TYPE_RTC = 6
+
+# Currently flags maps to irq_flags_t in the kernel.
+# Later we might need to enhance irq_flags_from_devtree() to use as translator.
+DEVTREE_IRQ_FLAGS_EDGE_TRIGGER = (1 << 0)
+
+DEVTREE_ENTRY = Struct(
+    "type" / Int32ul,
+    "flags" / Int32ul,
+    "region_base" / Int64ul,
+    "region_size" / Int64ul,
+    "irq_lane" / Int32ul,
+    "irq_flags" / Int32ul,
+    "irq_priority" / Int32ul,
+    "rel_name_offset" / Int32ul,
+    "aux1" / Int64ul,
+    "aux2" / Int64ul,
+    "aux3" / Int64ul,
+    "aux4" / Int64ul,
+)

utils/compilers/DevTreeCompiler/ABI/Translation.py

@@ -0,0 +1,47 @@
+from ABI.Structs import *
+
+
+class Translator():
+
+    @staticmethod
+    def entry_flag_translator(s):
+        translation = {
+            "MMIO": DEVTREE_ENTRY_FLAGS_MMIO,
+        }
+        return translation.get(s, 0)
+
+    @staticmethod
+    def irq_flag_translator(s):
+        translation = {
+            "EDGE_TRIGGER": DEVTREE_IRQ_FLAGS_EDGE_TRIGGER,
+        }
+        return translation.get(s, 0)
+
+    @staticmethod
+    def entry_type(s):
+        translation = {
+            "IO": DEVTREE_ENTRY_TYPE_IO,
+            "FB": DEVTREE_ENTRY_TYPE_FB,
+            "UART": DEVTREE_ENTRY_TYPE_UART,
+            "RAM": DEVTREE_ENTRY_TYPE_RAM,
+            "STORAGE": DEVTREE_ENTRY_TYPE_STORAGE,
+            "BUS_CONTROLLER": DEVTREE_ENTRY_TYPE_BUS_CONTROLLER,
+            "RTC": DEVTREE_ENTRY_TYPE_RTC
+        }
+        return translation.get(s, DEVTREE_ENTRY_TYPE_IO)
+
+    @staticmethod
+    def number(s):
+        return int(s, base=0)
+
+    @staticmethod
+    def flags(s, flagcb):
+        flags = 0x0
+        ents = s.split(" ")
+
+        for ent in ents:
+            t = flagcb(s)
+            if t != None:
+                flags |= t
+
+        return flags