wasp: simulator: First steps towards a simulator

Currently this just traces SPI activity from the ST7789 driver but its
a good baseline to start building up test functions from.

1 files changed, 54 insertions, 0 deletions

diff --git a/wasp/boards/simulator/machine.py b/wasp/boards/simulator/machine.py
new file mode 100644
index 0000000..2c93770
--- /dev/null
+++ b/wasp/boards/simulator/machine.py
@@ -0,0 +1,54 @@
+class Tracer(object):
+    def __init__(self, *args, **kwargs):
+        print(f'{self.__class__.__name__}.__init__{args} {kwargs}')
+
+    def __getattr__(self, name):
+        if name.upper() == name:
+            return name
+        return lambda *args, **kwargs: print(f'{self.__class__.__name__}.{name}{args} {kwargs}')
+
+class ADC(Tracer):
+    pass
+
+class Pin(object):
+    IN = 'IN'
+    OUT = 'OUT'
+
+    def __init__(self, id, direction, value=1):
+        self._id = id
+        self._value = 0
+
+    def init(self, d, value):
+        self.value(value)
+
+    def on(self):
+        self.value(1)
+
+    def off(self):
+        self.value(0)
+
+    def value(self, v=None):
+        if v is None:
+            return self._value
+        if v:
+            print(self._id + ": on")
+            self._value = False
+        else:
+            print(self._id + ": off")
+            self._value = True
+
+    def __call__(self, v=None):
+        self.value(v)
+
+class PWM(Tracer):
+    FREQ_16MHZ = 'FREQ_16MHZ'
+
+class SPI(object):
+    def __init__(self, id):
+        self._id = id
+
+    def init(self, baudrate=1000000,  polarity=0, phase=0, bits=8, sck=None, mosi=None, miso=None):
+        pass
+
+    def write(self, buf):
+        print("Sending data: " + str(buf))