Initial hatctl state

projects/hatctl/BUILD

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+py_project(
+    name = "lib"
+)
+
+zapp_binary(
+    name = "hatctl",
+    main = "src/python/hatctl/__main__.py",
+    imports = [
+        "src/python",
+    ],
+    deps = [
+        ":lib",
+        py_requirement("click"),
+    ],
+)

projects/hatctl/README.md

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+# hatctl
+
+A fork of [clusterctl](https://github.com/burtyb/clusterhat-image/blob/master/files/usr/sbin/clusterctrl) which serves to fix innumerable packaging problems.
+
+## license
+
+This software is published under the MIT License
+
+Copyright (c) 2018 Chris Burton (8086 consultancy)
+Copyright (c) 2021 Reid McKenzie

projects/hatctl/src/python/hatctl/xra1200.py

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+import smbus
+
+
+# Registers
+# Direction
+IN = 0x00
+OUT = 0x01
+DIR = 0x03
+PUR = 0x04
+
+INPUT = 1
+OUTPUT = 0
+
+
+class Xra1200:
+    bus = -1
+    address = -1
+    port = -1
+
+    def __init__(self, bus=0, address=0x39, port=0, dir="Null"):
+        self.bus = smbus.SMBus(bus)
+        self.address = address
+        self.port = port
+        if dir == 1:
+            self.set_input()
+        elif dir == 0:
+            self.set_output()
+
+    def set_dir(self, dir):
+        self.bus.write_byte_data(self.address, DIR, dir)
+
+    def get_dir(self):
+        return self.bus.read_byte_data(self.address, DIR)
+
+    def set_pur(self, pur):
+        self.bus.write_byte_data(self.address, PUR, pur)
+
+    def get_pur(self):
+        try:
+            reg = self.bus.read_byte_data(self.address, PUR)
+        except IOError as err:
+            return -1
+        return reg
+
+    def set_input(self):
+        state = self.bus.read_byte_data(self.address, DIR)
+        self.bus.write_byte_data(self.address, DIR, state | 1 << self.port)
+
+    def write_byte(self, data):
+        self.bus.write_byte_data(self.address, OUT, data)
+
+    def read_byte(self):
+        return self.bus.read_byte_data(self.address, IN)
+
+    def on(self):
+        state = self.bus.read_byte_data(self.address, OUT)
+        self.bus.write_byte_data(self.address, OUT, state | 1 << self.port)
+
+    def off(self):
+        state = self.bus.read_byte_data(self.address, OUT)
+        self.bus.write_byte_data(self.address, OUT, state & (255 - (1 << self.port)))
+
+    def get(self):
+        state = self.bus.read_byte_data(self.address, IN)
+        return (state >> self.port) & 1