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m1n1.fw.mtp: Fix parsing of init messages

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Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2023-04-16 20:26:43 +09:00
parent 36bcc36173
commit 9b7ae1b443
1 changed files with 8 additions and 3 deletions
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11
proxyclient/m1n1/fw/mtp.py
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@ -20,13 +20,13 @@ class GPIOInit(ConstructClass):
class InitBlock(ConstructClass):
subcon = Struct(
"type" / Int16ul,
"subtype" / Int16ul,
"length" / Int16ul,
"payload" / FixedSized(this.length,
Switch(this.type, {
0: HIDDescriptor,
1: GPIOInit,
2: Bytes(0),
2: GreedyBytes, # Unknown 6 bytes terminator
7: GreedyBytes, # Device name
}, default=GreedyBytes))
)
@ -37,6 +37,7 @@ class InitMsg(ConstructClass):
"unk" / Const(0x00, Int8ul),
"device_id" / Int8ul,
"device_name" / PaddedString(16, "ascii"),
"more_packets" / Int16ul,
"msg" / RepeatUntil(lambda obj, lst, ctx: lst[-1].type == 2, InitBlock)
)
@ -254,7 +255,6 @@ class MTPCommInterface(MTPInterface):
self.log(f"Got HID descriptor for {iface}:")
iface.descriptor = blk.payload.descriptor
self.log(hexdump(iface.descriptor))
iface.initialize()
elif isinstance(blk.payload, GPIOInit):
self.log(f"GPIO Init: {blk.payload}")
prop = getattr(self.proto.node[msg.device_name],
@ -263,6 +263,8 @@ class MTPCommInterface(MTPInterface):
val = prop.args[1]
self.log(f"GPIO key: {key}")
self.gpios[(msg.device_id, blk.payload.gpio_id)] = key, val
if not msg.more_packets:
iface.initialize()
elif isinstance(msg, GPIORequestMsg):
self.log(f"GPIO request: {msg}")
smcep = self.proto.smc.epmap[0x20]
@ -275,6 +277,9 @@ class MTPCommInterface(MTPInterface):
ackmsg.unk = 0
ackmsg.msg = msg
self.device_control(ackmsg)
else:
self.log("Unknown message!")
print(msg)
def ack(self, retcode, msg):
msg = DeviceControlAck.parse(msg)