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145 lines
3.8 KiB
145 lines
3.8 KiB
#!/usr/bin/env python
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import sys
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from collections import defaultdict
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from messages_pb2 import (
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MessageType,
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wire_bootloader,
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wire_debug_in,
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wire_debug_out,
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wire_in,
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wire_no_fsm,
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wire_out,
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)
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fh = open("messages_map.h", "wt")
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fl = open("messages_map_limits.h", "wt")
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# len("MessageType_MessageType_") - len("_fields") == 17
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TEMPLATE = "\t{{ {type} {dir} {msg_id:46} {fields:29} {process_func} }},\n"
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LABELS = {
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wire_in: "in messages",
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wire_out: "out messages",
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wire_debug_in: "debug in messages",
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wire_debug_out: "debug out messages",
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}
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# interface-direction pairs
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IFACE_DIR_PAIRS = {
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wire_in: ("n", "i"),
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wire_out: ("n", "o"),
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wire_debug_in: ("d", "i"),
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wire_debug_out: ("d", "o"),
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}
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SPECIAL_DEBUG_MESSAGES = {"MessageType_LoadDevice"}
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def get_wire_extensions(message):
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extensions = message.GetOptions().Extensions
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return (ext for ext in IFACE_DIR_PAIRS if extensions[ext])
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def handle_message(fh, fl, skipped, message, extension):
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name = message.name
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short_name = name.split("MessageType_", 1).pop()
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assert short_name != name
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interface, direction = IFACE_DIR_PAIRS[extension]
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for s in skipped:
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if short_name.startswith(s):
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return
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options = message.GetOptions()
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bootloader = options.Extensions[wire_bootloader]
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no_fsm = options.Extensions[wire_no_fsm]
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if getattr(options, "deprecated", None):
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fh.write(f"\t// Message {short_name} is deprecated\n")
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return
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if bootloader:
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fh.write(f"\t// Message {short_name} is used in bootloader mode only\n")
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return
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if no_fsm:
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fh.write(f"\t// Message {short_name} is not used in FSM\n")
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return
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if direction == "i":
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process_func = f"(void (*)(const void *))fsm_msg{short_name}"
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else:
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process_func = "0"
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fh.write(
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TEMPLATE.format(
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type=f"'{interface}',",
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dir=f"'{direction}',",
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msg_id=f"MessageType_{name},",
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fields=f"{short_name}_fields,",
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process_func=process_func,
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)
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)
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encoded_size = None
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decoded_size = None
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t = interface + direction
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if t == "ni":
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encoded_size = "MSG_IN_ENCODED_SIZE"
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decoded_size = "MSG_IN_DECODED_SIZE"
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elif t == "no":
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encoded_size = "MSG_OUT_ENCODED_SIZE"
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decoded_size = "MSG_OUT_DECODED_SIZE"
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elif t == "do":
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encoded_size = "MSG_DEBUG_OUT_ENCODED_SIZE"
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decoded_size = "MSG_OUT_DECODED_SIZE"
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if encoded_size:
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fl.write(
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f'_Static_assert({encoded_size} >= {short_name}_size, "msg buffer too small");\n'
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)
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if decoded_size:
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fl.write(
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f'_Static_assert({decoded_size} >= sizeof({short_name}), "msg buffer too small");\n'
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)
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skipped = sys.argv[1:]
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fh.write(
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"\t// This file is automatically generated by messages_map.py -- DO NOT EDIT!\n"
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)
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fl.write(
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"// This file is automatically generated by messages_map.py -- DO NOT EDIT!\n\n"
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)
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messages = defaultdict(list)
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for message in MessageType.DESCRIPTOR.values:
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if message.GetOptions().deprecated:
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continue
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for extension in get_wire_extensions(message):
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messages[extension].append(message)
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for extension in (wire_in, wire_out, wire_debug_in, wire_debug_out):
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if extension == wire_debug_in:
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fh.write("\n#if DEBUG_LINK\n")
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fl.write("\n#if DEBUG_LINK\n")
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fh.write(f"\n\t// {LABELS[extension]}\n\n")
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for message in messages[extension]:
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if message.name in SPECIAL_DEBUG_MESSAGES:
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fh.write("#if DEBUG_LINK\n")
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handle_message(fh, fl, skipped, message, extension)
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if message.name in SPECIAL_DEBUG_MESSAGES:
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fh.write("#endif\n")
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if extension == wire_debug_out:
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fh.write("\n#endif\n")
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fl.write("#endif\n")
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fh.close()
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fl.close()
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