From 39b7190334d7d19b0d19dd9299dc4a5ff94b2129 Mon Sep 17 00:00:00 2001 From: Sebastien Bourdeauducq Date: Fri, 16 Dec 2011 16:02:55 +0100 Subject: [PATCH] Pay a bit more attention to PEP8 --- examples/corelogic_conv.py | 4 +- examples/lm32_inst.py | 6 +-- examples/simple_gpio.py | 4 +- examples/wb_intercon/intercon_conv.py | 2 +- migen/bank/csrgen.py | 14 +++---- migen/bank/description.py | 6 +-- migen/bus/csr.py | 4 +- migen/bus/simple.py | 4 +- migen/bus/wishbone.py | 27 +++++++------ migen/bus/wishbone2csr.py | 8 ++-- migen/corelogic/divider.py | 9 +++-- migen/corelogic/multimux.py | 4 +- migen/corelogic/roundrobin.py | 10 ++--- migen/corelogic/timeline.py | 8 ++-- migen/fhdl/autofragment.py | 9 +++-- migen/fhdl/convtools.py | 58 +++++++++++++-------------- migen/fhdl/structure.py | 6 +-- migen/fhdl/verilog.py | 29 +++++++------- 18 files changed, 107 insertions(+), 105 deletions(-) diff --git a/examples/corelogic_conv.py b/examples/corelogic_conv.py index cd141cce..be3602c4 100644 --- a/examples/corelogic_conv.py +++ b/examples/corelogic_conv.py @@ -4,6 +4,6 @@ from migen.corelogic import roundrobin, divider r = roundrobin.Inst(5) d = divider.Inst(16) -frag = r.GetFragment() + d.GetFragment() +frag = r.get_fragment() + d.get_fragment() o = verilog.Convert(frag, {r.request, r.grant, d.ready_o, d.quotient_o, d.remainder_o, d.start_i, d.dividend_i, d.divisor_i}) -print(o) \ No newline at end of file +print(o) diff --git a/examples/lm32_inst.py b/examples/lm32_inst.py index 1af1751f..c6e043ce 100644 --- a/examples/lm32_inst.py +++ b/examples/lm32_inst.py @@ -37,11 +37,11 @@ class LM32: "rst_i", "lm32") - def GetFragment(self): + def get_fragment(self): return f.Fragment(instances=[self.inst]) cpus = [LM32() for i in range(4)] frag = f.Fragment() for cpu in cpus: - frag += cpu.GetFragment() -print(verilog.Convert(frag, set([cpus[0].inst.ins["interrupt"], cpus[0].inst.outs["I_WE_O"]]))) \ No newline at end of file + frag += cpu.get_fragment() +print(verilog.Convert(frag, set([cpus[0].inst.ins["interrupt"], cpus[0].inst.outs["I_WE_O"]]))) diff --git a/examples/simple_gpio.py b/examples/simple_gpio.py index 29e75ebd..b6d0943c 100644 --- a/examples/simple_gpio.py +++ b/examples/simple_gpio.py @@ -18,8 +18,8 @@ insync = [f.Assign(gpio_in_s, gpio_in), f.Assign(ifield.dev_w, gpio_in_s)] inf = f.Fragment(incomb, insync) bank = csrgen.Bank([oreg, ireg]) -f = bank.GetFragment() + inf +f = bank.get_fragment() + inf i = bank.interface ofield.dev_r.name = "gpio_out" v = verilog.Convert(f, {i.d_o, ofield.dev_r, i.a_i, i.we_i, i.d_i, gpio_in}) -print(v) \ No newline at end of file +print(v) diff --git a/examples/wb_intercon/intercon_conv.py b/examples/wb_intercon/intercon_conv.py index 06b046a8..2bd788ff 100644 --- a/examples/wb_intercon/intercon_conv.py +++ b/examples/wb_intercon/intercon_conv.py @@ -12,7 +12,7 @@ wishbonecon0 = wishbone.InterconnectShared( register=True, offset=1) -frag = wishbonecon0.GetFragment() +frag = wishbonecon0.get_fragment() v = verilog.Convert(frag, name="intercon", ios={m1.cyc_o, m1.stb_o, m1.we_o, m1.adr_o, m1.sel_o, m1.dat_o, m1.dat_i, m1.ack_i, m2.cyc_o, m2.stb_o, m2.we_o, m2.adr_o, m2.sel_o, m2.dat_o, m2.dat_i, m2.ack_i, s1.cyc_i, s1.stb_i, s1.we_i, s1.adr_i, s1.sel_i, s1.dat_i, s1.dat_o, s1.ack_o, diff --git a/migen/bank/csrgen.py b/migen/bank/csrgen.py index 460966b4..2a538a07 100644 --- a/migen/bank/csrgen.py +++ b/migen/bank/csrgen.py @@ -1,17 +1,15 @@ -from ..fhdl import structure as f -from ..bus.csr import * -from .description import * -from functools import partial +from migen.fhdl import structure as f +from migen.bus.csr import * +from migen.bank.description import * class Bank: def __init__(self, description, address=0): self.description = description self.address = address self.interface = Slave() - d = partial(f.Declare, self) - d("_sel") + f.declare_signal(self, "_sel") - def GetFragment(self): + def get_fragment(self): a = f.Assign comb = [] sync = [] @@ -19,7 +17,7 @@ class Bank: comb.append(a(self._sel, self.interface.a_i[10:] == f.Constant(self.address, f.BV(4)))) nregs = len(self.description) - nbits = f.BitsFor(nregs-1) + nbits = f.bits_for(nregs-1) # Bus writes bwcases = [] diff --git a/migen/bank/description.py b/migen/bank/description.py index accb1823..ec405d23 100644 --- a/migen/bank/description.py +++ b/migen/bank/description.py @@ -1,11 +1,11 @@ -from ..fhdl import structure as f +from migen.fhdl import structure as f class Register: def __init__(self, name): self.name = name self.fields = [] - def AddField(self, f): + def add_field(self, f): self.fields.append(f) (READ_ONLY, WRITE_ONLY, READ_WRITE) = range(3) @@ -25,4 +25,4 @@ class Field: if self.access_dev == WRITE_ONLY or self.access_dev == READ_WRITE: self.dev_w = f.Signal(f.BV(self.size), fullname + "_w") self.dev_we = f.Signal(name=fullname + "_we") - self.parent.AddField(self) \ No newline at end of file + self.parent.add_field(self) \ No newline at end of file diff --git a/migen/bus/csr.py b/migen/bus/csr.py index c62f4faf..74fc4273 100644 --- a/migen/bus/csr.py +++ b/migen/bus/csr.py @@ -1,5 +1,5 @@ from migen.fhdl import structure as f -from .simple import Simple +from migen.bus.simple import Simple _desc = [ (True, "a", 14), @@ -21,7 +21,7 @@ class Interconnect: self.master = master self.slaves = slaves - def GetFragment(self): + def get_fragment(self): a = f.Assign comb = [] rb = f.Constant(0, f.BV(32)) diff --git a/migen/bus/simple.py b/migen/bus/simple.py index 5b578f97..83fee1d1 100644 --- a/migen/bus/simple.py +++ b/migen/bus/simple.py @@ -1,6 +1,6 @@ from migen.fhdl import structure as f -def GetSigName(signal, slave): +def get_sig_name(signal, slave): if signal[0] ^ slave: suffix = "_o" else: @@ -18,5 +18,5 @@ class Simple(): busname = modules[len(modules)-1] if name: busname += "_" + name - signame = GetSigName(signal, slave) + signame = get_sig_name(signal, slave) setattr(self, signame, f.Signal(f.BV(signal[2]), busname + "_" + signame)) diff --git a/migen/bus/wishbone.py b/migen/bus/wishbone.py index b464adea..140f1ba7 100644 --- a/migen/bus/wishbone.py +++ b/migen/bus/wishbone.py @@ -1,7 +1,8 @@ +from functools import partial + from migen.fhdl import structure as f from migen.corelogic import roundrobin, multimux -from .simple import Simple, GetSigName -from functools import partial +from migen.bus.simple import Simple, get_sig_name _desc = [ (True, "adr", 32), @@ -31,17 +32,17 @@ class Arbiter: self.target = target self.rr = roundrobin.Inst(len(self.masters)) - def GetFragment(self): + def get_fragment(self): comb = [] # mux master->slave signals - m2s_names = [GetSigName(x, False) for x in _desc if x[0]] + m2s_names = [get_sig_name(x, False) for x in _desc if x[0]] m2s_masters = [[getattr(m, name) for name in m2s_names] for m in self.masters] m2s_target = [getattr(self.target, name) for name in m2s_names] - comb += multimux.MultiMux(self.rr.grant, m2s_masters, m2s_target) + comb += multimux.multimux(self.rr.grant, m2s_masters, m2s_target) # connect slave->master signals - s2m_names = [GetSigName(x, False) for x in _desc if not x[0]] + s2m_names = [get_sig_name(x, False) for x in _desc if not x[0]] for name in s2m_names: source = getattr(self.target, name) i = 0 @@ -57,7 +58,7 @@ class Arbiter: reqs = [m.cyc_o for m in self.masters] comb.append(f.Assign(self.rr.request, f.Cat(*reqs))) - return f.Fragment(comb) + self.rr.GetFragment() + return f.Fragment(comb) + self.rr.get_fragment() class Decoder: # slaves is a list of pairs: @@ -75,7 +76,7 @@ class Decoder: self.register = register addresses = [slave[0] for slave in self.slaves] - maxbits = max([f.BitsFor(addr) for addr in addresses]) + maxbits = max([f.bits_for(addr) for addr in addresses]) def mkconst(x): if isinstance(x, int): return f.Constant(x, f.BV(maxbits)) @@ -84,11 +85,11 @@ class Decoder: self.addresses = list(map(mkconst, addresses)) ns = len(self.slaves) - d = partial(f.Declare, self) + d = partial(f.declare_signal, self) d("_slave_sel", f.BV(ns)) d("_slave_sel_r", f.BV(ns)) - def GetFragment(self): + def get_fragment(self): comb = [] sync = [] @@ -105,7 +106,7 @@ class Decoder: comb.append(f.Assign(self._slave_sel_r, self._slave_sel)) # connect master->slaves signals except cyc - m2s_names = [(GetSigName(x, False), GetSigName(x, True)) + m2s_names = [(get_sig_name(x, False), get_sig_name(x, True)) for x in _desc if x[0] and x[1] != "cyc"] comb += [f.Assign(getattr(slave[1], name[1]), getattr(self.master, name[0])) for name in m2s_names for slave in self.slaves] @@ -142,5 +143,5 @@ class InterconnectShared: self._decoder = Decoder(self._shared, slaves, offset, register) self.addresses = self._decoder.addresses - def GetFragment(self): - return self._arbiter.GetFragment() + self._decoder.GetFragment() + def get_fragment(self): + return self._arbiter.get_fragment() + self._decoder.get_fragment() diff --git a/migen/bus/wishbone2csr.py b/migen/bus/wishbone2csr.py index 3244dd05..c7ea78fa 100644 --- a/migen/bus/wishbone2csr.py +++ b/migen/bus/wishbone2csr.py @@ -1,7 +1,7 @@ +from migen.bus import wishbone +from migen.bus import csr from migen.fhdl import structure as f from migen.corelogic import timeline -from . import wishbone -from . import csr class Inst(): def __init__(self): @@ -12,11 +12,11 @@ class Inst(): (2, [f.Assign(self.wishbone.ack_o, 1)]), (3, [f.Assign(self.wishbone.ack_o, 0)])]) - def GetFragment(self): + def get_fragment(self): sync = [ f.Assign(self.csr.we_o, 0), f.Assign(self.csr.d_o, self.wishbone.dat_i), f.Assign(self.csr.a_o, self.wishbone.adr_i[2:16]), f.Assign(self.wishbone.dat_o, self.csr.d_i) ] - return f.Fragment(sync=sync) + self.timeline.GetFragment() + return f.Fragment(sync=sync) + self.timeline.get_fragment() diff --git a/migen/corelogic/divider.py b/migen/corelogic/divider.py index 4fffda08..9c82ad6c 100644 --- a/migen/corelogic/divider.py +++ b/migen/corelogic/divider.py @@ -1,11 +1,12 @@ -from migen.fhdl import structure as f from functools import partial +from migen.fhdl import structure as f + class Inst: def __init__(self, w): self.w = w - d = partial(f.Declare, self) + d = partial(f.declare_signal, self) d("start_i") d("dividend_i", f.BV(w)) @@ -15,11 +16,11 @@ class Inst: d("remainder_o", f.BV(w)) d("_qr", f.BV(2*w)) - d("_counter", f.BV(f.BitsFor(w))) + d("_counter", f.BV(f.bits_for(w))) d("_divisor_r", f.BV(w)) d("_diff", f.BV(w+1)) - def GetFragment(self): + def get_fragment(self): a = f.Assign comb = [ a(self.quotient_o, self._qr[:self.w]), diff --git a/migen/corelogic/multimux.py b/migen/corelogic/multimux.py index 9db49b7b..db8e24b5 100644 --- a/migen/corelogic/multimux.py +++ b/migen/corelogic/multimux.py @@ -1,6 +1,6 @@ from migen.fhdl import structure as f -def MultiMux(sel, inputs, output): +def multimux(sel, inputs, output): n = len(inputs) i = 0 comb = [] @@ -10,4 +10,4 @@ def MultiMux(sel, inputs, output): default = cases.pop()[1] comb.append(f.Case(sel, cases, default)) i += 1 - return comb \ No newline at end of file + return comb diff --git a/migen/corelogic/roundrobin.py b/migen/corelogic/roundrobin.py index 834cfae5..e079b004 100644 --- a/migen/corelogic/roundrobin.py +++ b/migen/corelogic/roundrobin.py @@ -3,11 +3,11 @@ from migen.fhdl import structure as f class Inst: def __init__(self, n): self.n = n - self.bn = f.BitsFor(self.n-1) - f.Declare(self, "request", f.BV(self.n)) - f.Declare(self, "grant", f.BV(self.bn)) + self.bn = f.bits_for(self.n-1) + f.declare_signal(self, "request", f.BV(self.n)) + f.declare_signal(self, "grant", f.BV(self.bn)) - def GetFragment(self): + def get_fragment(self): cases = [] for i in range(self.n): switch = [] @@ -19,4 +19,4 @@ class Inst: case = f.If(~self.request[i], switch) cases.append((f.Constant(i, f.BV(self.bn)), case)) statement = f.Case(self.grant, cases) - return f.Fragment(sync=[statement]) \ No newline at end of file + return f.Fragment(sync=[statement]) diff --git a/migen/corelogic/timeline.py b/migen/corelogic/timeline.py index 1515c6ec..aed5727a 100644 --- a/migen/corelogic/timeline.py +++ b/migen/corelogic/timeline.py @@ -5,9 +5,9 @@ class Inst: self.trigger = trigger self.events = events self.lastevent = max([e[0] for e in events]) - f.Declare(self, "_counter", f.BV(f.BitsFor(self.lastevent))) + f.declare_signal(self, "_counter", f.BV(f.bits_for(self.lastevent))) - def GetFragment(self): + def get_fragment(self): counterlogic = f.If(self._counter != f.Constant(0, self._counter.bv), [f.Assign(self._counter, self._counter + f.Constant(1, self._counter.bv))], [f.If(self.trigger, [f.Assign(self._counter, f.Constant(1, self._counter.bv))])]) @@ -17,11 +17,11 @@ class Inst: counterlogic = f.If(self._counter == self.lastevent, [f.Assign(self._counter, f.Constant(0, self._counter.bv))], [counterlogic]) - def getcond(e): + def get_cond(e): if e[0] == 0: return self.trigger & (self._counter == f.Constant(0, self._counter.bv)) else: return self._counter == f.Constant(e[0], self._counter.bv) - sync = [f.If(getcond(e), e[1]) for e in self.events] + sync = [f.If(get_cond(e), e[1]) for e in self.events] sync.append(counterlogic) return f.Fragment(sync=sync) diff --git a/migen/fhdl/autofragment.py b/migen/fhdl/autofragment.py index 29002597..554db1a8 100644 --- a/migen/fhdl/autofragment.py +++ b/migen/fhdl/autofragment.py @@ -1,12 +1,13 @@ -from .structure import * import inspect -def FromLocal(): +from migen.fhdl.structure import * + +def from_local(): f = Fragment() frame = inspect.currentframe().f_back ns = frame.f_locals for x in ns: obj = ns[x] - if hasattr(obj, "GetFragment"): - f += obj.GetFragment() + if hasattr(obj, "get_fragment"): + f += obj.get_fragment() return f diff --git a/migen/fhdl/convtools.py b/migen/fhdl/convtools.py index a8f30361..b236ff1b 100644 --- a/migen/fhdl/convtools.py +++ b/migen/fhdl/convtools.py @@ -5,7 +5,7 @@ class Namespace: self.counts = {} self.sigs = {} - def GetName(self, sig): + def get_name(self, sig): try: n = self.sigs[sig] if n: @@ -24,77 +24,77 @@ class Namespace: else: return sig.name -def ListSignals(node): +def list_signals(node): if isinstance(node, Constant): return set() elif isinstance(node, Signal): return {node} elif isinstance(node, Operator): - l = list(map(ListSignals, node.operands)) + l = list(map(list_signals, node.operands)) return set().union(*l) elif isinstance(node, Slice): - return ListSignals(node.value) + return list_signals(node.value) elif isinstance(node, Cat): - l = list(map(ListSignals, node.l)) + l = list(map(list_signals, node.l)) return set().union(*l) elif isinstance(node, Replicate): - return ListSignals(node.v) + return list_signals(node.v) elif isinstance(node, Assign): - return ListSignals(node.l) | ListSignals(node.r) + return list_signals(node.l) | list_signals(node.r) elif isinstance(node, StatementList): - l = list(map(ListSignals, node.l)) + l = list(map(list_signals, node.l)) return set().union(*l) elif isinstance(node, If): - return ListSignals(node.cond) | ListSignals(node.t) | ListSignals(node.f) + return list_signals(node.cond) | list_signals(node.t) | list_signals(node.f) elif isinstance(node, Case): - l = list(map(lambda x: ListSignals(x[1]), node.cases)) - return ListSignals(node.test).union(*l).union(ListSignals(node.default)) + l = list(map(lambda x: list_signals(x[1]), node.cases)) + return list_signals(node.test).union(*l).union(list_signals(node.default)) elif isinstance(node, Fragment): - return ListSignals(node.comb) | ListSignals(node.sync) + return list_signals(node.comb) | list_signals(node.sync) else: raise TypeError -def ListTargets(node): +def list_targets(node): if isinstance(node, Signal): return {node} elif isinstance(node, Slice): - return ListTargets(node.value) + return list_targets(node.value) elif isinstance(node, Cat): - l = list(map(ListTargets, node.l)) + l = list(map(list_targets, node.l)) return set().union(*l) elif isinstance(node, Replicate): - return ListTargets(node.v) + return list_targets(node.v) elif isinstance(node, Assign): - return ListTargets(node.l) + return list_targets(node.l) elif isinstance(node, StatementList): - l = list(map(ListTargets, node.l)) + l = list(map(list_targets, node.l)) return set().union(*l) elif isinstance(node, If): - return ListTargets(node.t) | ListTargets(node.f) + return list_targets(node.t) | list_targets(node.f) elif isinstance(node, Case): - l = list(map(lambda x: ListTargets(x[1]), node.cases)) - return ListTargets(node.default).union(*l) + l = list(map(lambda x: list_targets(x[1]), node.cases)) + return list_targets(node.default).union(*l) elif isinstance(node, Fragment): - return ListTargets(node.comb) | ListTargets(node.sync) + return list_targets(node.comb) | list_targets(node.sync) else: raise TypeError -def ListInstOuts(i): +def list_inst_outs(i): if isinstance(i, Fragment): - return ListInstOuts(i.instances) + return list_inst_outs(i.instances) else: l = [] for x in i: l += list(map(lambda x: x[1], list(x.outs.items()))) return set(l) -def IsVariable(node): +def is_variable(node): if isinstance(node, Signal): return node.variable elif isinstance(node, Slice): - return IsVariable(node.value) + return is_variable(node.value) elif isinstance(node, Cat): - arevars = list(map(IsVariable, node.l)) + arevars = list(map(is_variable, node.l)) r = arevars[0] for x in arevars: if x != r: @@ -103,8 +103,8 @@ def IsVariable(node): else: raise TypeError -def InsertReset(rst, sl): - targets = ListTargets(sl) +def insert_reset(rst, sl): + targets = list_targets(sl) resetcode = [] for t in targets: resetcode.append(Assign(t, t.reset)) diff --git a/migen/fhdl/structure.py b/migen/fhdl/structure.py index b5a87f2c..009930e6 100644 --- a/migen/fhdl/structure.py +++ b/migen/fhdl/structure.py @@ -1,6 +1,6 @@ import math -def BitsFor(n): +def bits_for(n): if isinstance(n, Constant): return n.bv.width else: @@ -108,7 +108,7 @@ class Replicate(Value): class Constant(Value): def __init__(self, n, bv=None): - self.bv = bv or BV(BitsFor(n)) + self.bv = bv or BV(bits_for(n)) self.n = n def __repr__(self): @@ -130,7 +130,7 @@ class Signal(Value): def __hash__(self): return id(self) -def Declare(parent, name, bv=BV(), variable=False, reset=0): +def declare_signal(parent, name, bv=BV(), variable=False, reset=0): # try to find a meaningful prefix if parent.__module__ == "__main__": prefix = parent.__class__.__name__ diff --git a/migen/fhdl/verilog.py b/migen/fhdl/verilog.py index 6b680801..4ec02eb4 100644 --- a/migen/fhdl/verilog.py +++ b/migen/fhdl/verilog.py @@ -1,7 +1,8 @@ -from .structure import * -from .convtools import * from functools import partial +from migen.fhdl.structure import * +from migen.fhdl.convtools import * + def _printsig(ns, s): if s.bv.signed: n = "signed " @@ -9,7 +10,7 @@ def _printsig(ns, s): n = "" if s.bv.width > 1: n += "[" + str(s.bv.width-1) + ":0] " - n += ns.GetName(s) + n += ns.get_name(s) return n def _printexpr(ns, node): @@ -19,7 +20,7 @@ def _printexpr(ns, node): else: return "-" + str(node.bv) + str(-self.n) elif isinstance(node, Signal): - return ns.GetName(node) + return ns.get_name(node) elif isinstance(node, Operator): arity = len(node.operands) if arity == 1: @@ -46,7 +47,7 @@ def _printexpr(ns, node): def _printnode(ns, level, node): if isinstance(node, Assign): - if IsVariable(node.l): + if is_variable(node.l): assignment = " = " else: assignment = " <= " @@ -96,7 +97,7 @@ def _printinstances(ns, i, clk, rst): raise TypeError r += ")" r += "\n) " - r += ns.GetName(x) + r += ns.get_name(x) if x.parameters: r += " " r += "(\n" ports = list(x.ins.items()) + list(x.outs.items()) @@ -109,7 +110,7 @@ def _printinstances(ns, i, clk, rst): if not firstp: r += ",\n" firstp = False - r += "\t." + p[0] + "(" + ns.GetName(p[1]) + ")" + r += "\t." + p[0] + "(" + ns.get_name(p[1]) + ")" if not firstp: r += "\n" r += ");\n\n" @@ -123,14 +124,14 @@ def Convert(f, ios=set(), name="top", clkname="sys_clk", rstname="sys_rst", ns=N ios |= f.pads - sigs = ListSignals(f) - targets = ListTargets(f) - instouts = ListInstOuts(f) + sigs = list_signals(f) + targets = list_targets(f) + instouts = list_inst_outs(f) r = "/* Machine-generated using Migen */\n" r += "module " + name + "(\n" - r += "\tinput " + ns.GetName(clks) + ",\n" - r += "\tinput " + ns.GetName(rsts) + r += "\tinput " + ns.get_name(clks) + ",\n" + r += "\tinput " + ns.get_name(rsts) for sig in ios: if sig in targets: r += ",\n\toutput reg " + _printsig(ns, sig) @@ -151,8 +152,8 @@ def Convert(f, ios=set(), name="top", clkname="sys_clk", rstname="sys_rst", ns=N r += _printnode(ns, 1, f.comb) r += "end\n\n" if f.sync.l: - r += "always @(posedge " + ns.GetName(clks) + ") begin\n" - r += _printnode(ns, 1, InsertReset(rsts, f.sync)) + r += "always @(posedge " + ns.get_name(clks) + ") begin\n" + r += _printnode(ns, 1, insert_reset(rsts, f.sync)) r += "end\n\n" r += _printinstances(ns, f.instances, clks, rsts) -- 2.30.2