[stm32] Get timer signalToChannel() information from device data

Author: chris-durand

src/modm/platform/gpio/stm32/module.lb

@@ -3,7 +3,7 @@
 #
 # Copyright (c) 2016-2018, Niklas Hauser
 # Copyright (c) 2017, Fabian Greif
-# Copyright (c) 2020, Christopher Durand
+# Copyright (c) 2020-2023, Christopher Durand
 #
 # This file is part of the modm project.
 #
@@ -164,6 +164,9 @@ def prepare(module, options):
         ":cmsis:device",
         ":math:utils",
         ":platform:rcc")
+
+    module.add_query(EnvironmentQuery(name="all_signals", factory=lambda env: bprops["all_signals"]))
+
     return True
 
 def validate(env):

src/modm/platform/timer/stm32/general_purpose_base.hpp.in

@@ -2,7 +2,7 @@
  * Copyright (c) 2013, Kevin Läufer
  * Copyright (c) 2014, Fabian Greif
  * Copyright (c) 2014-2017, Niklas Hauser
- * Copyright (c) 2022, Christopher Durand
+ * Copyright (c) 2022-2023, Christopher Durand
  *
  * This file is part of the modm project.
  *
@@ -275,28 +275,15 @@ protected:
 	signalToChannel()
 	{
 		modm::platform::detail::SignalConnection<Signal, p>{};
-		if constexpr (Signal::Signal == Gpio::Signal::Ch1) {
-			return 1;
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch2) {
-			return 2;
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch3) {
-			return 3;
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch4) {
-			return 4;
-%% if target.family not in ["l0","l1"]
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch1n) {
-			return 1;
-%% if target.family not in ["f3"]
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch2n) {
-			return 2;
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch3n) {
-			return 3;
-%% if target.family in ["g4","u5","h5"]
-		} else if constexpr (Signal::Signal == Gpio::Signal::Ch4n) {
-			return 4;
-%% endif
-%% endif
+%% for signal, number in signals
+%% if loop.first
+		if constexpr (Signal::Signal == Gpio::Signal::{{ signal }}) {
+			return {{ number }};
+%% else
+		} else if constexpr (Signal::Signal == Gpio::Signal::{{ signal }}) {
+			return {{ number }};
 %% endif
+%% endfor
 		} else {
 			// assert is always false, static_assert(false) would not compile
 			static_assert(!sizeof(Signal), "Invalid timer channel");

src/modm/platform/timer/stm32/module.lb

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (c) 2016-2018, Niklas Hauser
+# Copyright (c) 2023, Christopher Durand
 #
 # This file is part of the modm project.
 #
@@ -11,22 +12,9 @@
 # -----------------------------------------------------------------------------
 
 from collections import defaultdict
-props = {}
+import re
 
-def get_connectors(instance):
-    if instance in [1, 8]:
-        return ["Channel1", "Channel1N", "Channel2", "Channel2N",
-                "Channel3", "Channel3N", "Channel4", "Channel4N",
-                "ExternalTrigger", "BreakIn"]
-    elif instance in [2, 3, 4, 5, 19]:
-        return ["Channel1", "Channel2", "Channel3", "Channel4", "ExternalTrigger"]
-    elif instance in [9, 12]:
-        return ["Channel1", "Channel2"]
-    elif instance in [10, 11, 13, 14]:
-        return ["Channel1"]
-    elif instance in [15, 16, 17]:
-        return ["Channel1", "Channel1N", "Channel2", "BreakIn"]
-    return []
+props = {}
 
 class Instance(Module):
     def __init__(self, driver, instance):
@@ -73,7 +61,6 @@ class Instance(Module):
     def build(self, env):
         global props
         props["id"] = self.instance
-        props["connectors"] = get_connectors(self.instance)
         props["vectors"] = self.vectors
         props["types"].add(self.type)
 
@@ -129,6 +116,10 @@ def build(env):
     env.substitutions = props
     env.outbasepath = "modm/src/modm/platform/timer"
 
+    pattern = re.compile("^(Ch([1-6])n{0,1})$")
+    all_signals = env.query(":platform:gpio:all_signals")
+    props["signals"] = [pattern.match(s).groups() for s in all_signals if pattern.match(s)]
+
     # Only generate the base types for timers that were generated
     types = props["types"]
     if "advanced" in types: