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asc.py
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asc.py
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# SPDX-License-Identifier: MIT
import struct
from enum import IntEnum
from ..hv import TraceMode
from ..utils import *
from . import ADTDevTracer
from ..hw.asc import *
class DIR(IntEnum):
RX = 0
TX = 1
def msg(message, direction=None, regtype=None, name=None):
def f(x):
x.is_message = True
x.direction = direction
x.message = message
x.regtype = regtype
x.name = name
return x
return f
def msg_log(*args, **kwargs):
def x(self, msg):
return False
return msg(*args, **kwargs)(x)
def msg_ign(*args, **kwargs):
def x(self, msg):
return True
return msg(*args, **kwargs)(x)
class EPState(object):
pass
class EP(object):
NAME = None
BASE_MESSAGE = None
def __init__(self, tracer, epid):
self.tracer = tracer
self.epid = epid
self.present = False
self.started = False
self.name = self.NAME or type(self).__name__.lower()
self.state = EPState()
self.hv = self.tracer.hv
self.msgmap = {}
for name in dir(self):
i = getattr(self, name)
if not callable(i) or not getattr(i, "is_message", False):
continue
self.msgmap[i.direction, i.message] = getattr(self, name), name, i.regtype
def log(self, msg):
self.tracer.log(f"[{self.name}] {msg}")
def start(self):
pass
def handle_msg(self, direction, r0, r1):
msgtype = None
if self.BASE_MESSAGE:
r0 = self.BASE_MESSAGE(r0.value)
msgtype = r0.TYPE
handler = None
name = "<unknown>"
regtype = None
msgids = [
(direction, msgtype),
(None, msgtype),
(direction, None),
(None, None),
]
for msgid in msgids:
handler, name, regtype = self.msgmap.get(msgid, (None, None, None))
if handler:
break
if regtype is not None:
r0 = regtype(r0.value)
if handler:
if handler.name is not None:
name = handler.name
if handler(r0):
return True
d = ">" if direction == DIR.TX else "<"
self.log(f"{d}{msgtype:#x}({name}) {r0.value:016x} ({r0.str_fields()})")
return True
class EPContainer(object):
pass
class BaseASCTracer(ADTDevTracer):
DEFAULT_MODE = TraceMode.SYNC
REGMAPS = [ASCRegs, None]
NAMES = ["asc", None]
ENDPOINTS = {}
def w_OUTBOX_CTRL(self, val):
self.log(f"OUTBOX_CTRL = {val!s}")
def w_INBOX1(self, inbox1):
inbox0 = self.asc.cached.INBOX0.reg
if self.verbose >= 2:
self.log(f"SEND: {inbox0.value:016x}:{inbox1.value:016x} " +
f"{inbox0.str_fields()} | {inbox1.str_fields()}")
self.handle_msg(DIR.TX, inbox0, inbox1)
def r_OUTBOX1(self, outbox1):
outbox0 = self.asc.cached.OUTBOX0.reg
if self.verbose >= 2:
self.log(f"RECV: {outbox0.value:016x}:{outbox1.value:016x} " +
f"{outbox0.str_fields()} | {outbox1.str_fields()}")
self.handle_msg(DIR.RX, outbox0, outbox1)
def init_state(self):
self.state.ep = {}
def handle_msg(self, direction, r0, r1):
if r1.EP in self.epmap:
if self.epmap[r1.EP].handle_msg(direction, r0, r1):
return
d = ">" if direction == DIR.TX else "<"
self.log(f"{d}ep:{r1.EP:02x} {r0.value:016x} ({r0.str_fields()})")
def start(self, dart=None):
super().start()
self.dart = dart
self.msgmap = {}
for name in dir(self):
i = getattr(self, name)
if not callable(i) or not getattr(i, "is_message", False):
continue
self.msgmap[i.direction, i.endpoint, i.message] = getattr(self, name), name, i.regtype
self.epmap = {}
self.ep = EPContainer()
for cls in type(self).mro():
eps = getattr(cls, "ENDPOINTS", None)
if eps is None:
break
for k, v in eps.items():
if k in self.epmap:
continue
ep = v(self, k)
ep.dart = dart
self.epmap[k] = ep
if k in self.state.ep:
ep.state.__dict__.update(self.state.ep[k])
self.state.ep[k] = ep.state.__dict__
if getattr(self.ep, ep.name, None):
ep.name = f"{ep.name}{k:02x}"
setattr(self.ep, ep.name, ep)
ep.start()
# System endpoints
## Management endpoint
from ..fw.asc.mgmt import ManagementMessage, Mgmt_EPMap, Mgmt_EPMap_Ack, Mgmt_StartEP, Mgmt_StartSyslog
class Management(EP):
BASE_MESSAGE = ManagementMessage
HELLO = msg_log(1, DIR.RX)
HELLO_ACK = msg_log(2, DIR.TX)
@msg(5, DIR.TX, Mgmt_StartEP)
def StartEP(self, msg):
ep = self.tracer.epmap.get(msg.EP, None)
if ep:
ep.started = True
self.log(f" Starting endpoint #{msg.EP:#02x} ({ep.name})")
else:
self.log(f" Starting endpoint #{msg.EP:#02x}")
#return True
Init = msg_log(6, DIR.TX)
@msg(8, DIR.RX, Mgmt_EPMap)
def EPMap(self, msg):
for i in range(32):
if msg.BITMAP & (1 << i):
epno = 32 * msg.BASE + i
ep = self.tracer.epmap.get(epno, None)
if ep:
ep.present = True
self.log(f" Adding endpoint #{epno:#02x} ({ep.name})")
else:
self.log(f" Adding endpoint #{epno:#02x}")
EPMap_Ack = msg_log(8, DIR.TX, Mgmt_EPMap_Ack)
StartSyslog = msg_log(0x0b, DIR.TX, Mgmt_StartSyslog)
StartSyslog_Ack = msg_log(0x0b, DIR.RX, Mgmt_StartSyslog)
## Syslog endpoint
from ..fw.asc.syslog import SyslogMessage, Syslog_Init, Syslog_GetBuf, Syslog_Log
class Syslog(EP):
BASE_MESSAGE = SyslogMessage
GetBuf = msg_log(1, DIR.RX, Syslog_GetBuf)
@msg(8, DIR.RX, Syslog_Init)
def Init(self, msg):
self.state.count = msg.COUNT
self.state.entrysize = msg.ENTRYSIZE
@msg(1, DIR.TX, Syslog_GetBuf)
def GetBuf_Ack(self, msg):
self.state.syslog_buf = msg.DVA & 0xffffffff
@msg(5, DIR.RX, Syslog_Log)
def Log(self, msg):
if self.tracer.dart is None:
return False
buf = self.state.syslog_buf
stride = 0x20 + self.state.entrysize
log = self.tracer.dart.ioread(0, buf + msg.INDEX * stride, stride)
hdr, unk, context, logmsg = struct.unpack(f"<II24s{self.state.entrysize}s", log)
context = context.split(b"\x00")[0].decode("ascii")
logmsg = logmsg.split(b"\x00")[0].decode("ascii").rstrip("\n")
self.log(f"* [{context}]{logmsg}")
return True
Log_Ack = msg_ign(5, DIR.TX, Syslog_Log)
class ASCTracer(BaseASCTracer):
ENDPOINTS = {
0: Management,
#1: CrashLog,
2: Syslog,
#3: KDebug,
#4: IOReporting,
}