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m1n1.fw.aop: Move bootargs helpers to new class AOPBase

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The new class can possibly be shared between the m1n1 AOP tracer and
AOP client.

Signed-off-by: Martin Povišer <povik@protonmail.com>
This commit is contained in:
Martin Povišer 2022-10-20 23:44:46 +02:00 committed by Hector Martin
parent 6ad59beb0c
commit 2bacc044e8
2 changed files with 31 additions and 27 deletions
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29
proxyclient/experiments/aop.py
View file

@ -36,7 +36,8 @@ class AOPOSLogEndpoint(ASCBaseEndpoint):
self.started = True
return True
class AOPClient(StandardASC):
class AOPClient(StandardASC, AOPBase):
ENDPOINTS = {
8: AOPOSLogEndpoint,
@ -54,34 +55,10 @@ class AOPClient(StandardASC):
def __init__(self, u, adtpath, dart=None):
node = u.adt[adtpath]
self.base = node.get_reg(0)[0]
self.fw_base, self.fw_len = node.get_reg(2)
if u.adt["arm-io"].compatible[0] == "arm-io,t6000":
# argh
self.fw_base -= 0x2_0000_0000
AOPBase.__init__(self, u, node)
super().__init__(u, self.base, dart)
@property
def _bootargs_span(self):
base = self.fw_base + self.p.read32(self.fw_base + 0x224)
length = self.p.read32(self.fw_base + 0x228)
return (base, length)
def read_bootargs(self):
blob = self.iface.readmem(*self._bootargs_span)
return ASCArgumentSection(blob)
def write_bootargs(self, args):
base, _ = self._bootargs_span
self.iface.writemem(base, args.to_bytes())
def update_bootargs(self, keyvals):
args = self.read_bootargs()
args.update(keyvals)
self.write_bootargs(args)
p.dapf_init_all()
dart = DART.from_adt(u, "/arm-io/dart-aop")

29
proxyclient/m1n1/fw/aop/__init__.py
View file

@ -1,4 +1,31 @@
# SPDX-License-Identifier: MIT
from .bootargs import ASCArgumentSection
__all__ = ["ASCArgumentSection"]
class AOPBase:
def __init__(self, u, adtnode):
self.fw_base, self.fw_len = adtnode.get_reg(2)
if u.adt["arm-io"].compatible[0] == "arm-io,t6000":
# argh
self.fw_base -= 0x2_0000_0000
@property
def _bootargs_span(self):
base = self.fw_base + self.p.read32(self.fw_base + 0x224)
length = self.p.read32(self.fw_base + 0x228)
return (base, length)
def read_bootargs(self):
blob = self.iface.readmem(*self._bootargs_span)
return ASCArgumentSection(blob)
def write_bootargs(self, args):
base, _ = self._bootargs_span
self.iface.writemem(base, args.to_bytes())
def update_bootargs(self, keyvals):
args = self.read_bootargs()
args.update(keyvals)
self.write_bootargs(args)
__all__ = ["ASCArgumentSection", "AOPBase"]