Initial test

kmk/firmware_slave.py

@@ -0,0 +1,107 @@
+import kmk.matrix  # isort:skip
+
+# Thanks for sticking around. Now let's do real work, starting below
+
+import busio
+import gc
+
+from kmk.internal_state_slave import InternalState
+from kmk.matrix import MatrixScanner
+
+
+class Firmware:
+    debug_enabled = False
+
+    row_pins = None
+    col_pins = None
+    diode_orientation = None
+
+    extra_data_pin = None
+    split_offsets = ()
+    split_flip = False
+    split_side = None
+    split_type = None
+    split_master_left = True
+    is_master = False
+    uart = None
+    uart_flip = True
+    uart_pin = None
+
+    def __init__(self):
+        self._state = InternalState(self)
+
+    def _handle_matrix_report(self, update=None):
+        '''
+        Bulk processing of update code for each cycle
+        :param update:
+        '''
+        if update is not None:
+            self._state.matrix_changed(
+                update[0],
+                update[1],
+                update[2],
+            )
+
+    def _send_to_master(self, update):
+        if self.split_master_left:
+            update[1] += self.split_offsets[update[0]]
+        else:
+            update[1] -= self.split_offsets[update[0]]
+        if self.uart is not None:
+            self.uart.write(update)
+
+    def _send_debug(self, message):
+        '''
+        Prepends DEB and appends a newline to allow debug messages to
+        be detected and handled differently than typical keypresses.
+        :param message: Debug message
+        '''
+        if self.uart is not None:
+            self.uart.write('DEB')
+            self.uart.write(message, '\n')
+
+    def init_uart(self, pin, timeout=20):
+        return busio.UART(tx=pin, rx=None, timeout=timeout)
+
+    def go(self):
+        assert self.row_pins, 'no GPIO pins defined for matrix rows'
+        assert self.col_pins, 'no GPIO pins defined for matrix columns'
+        assert self.diode_orientation is not None, 'diode orientation must be defined'
+
+        if self.split_flip:
+            self.col_pins = list(reversed(self.col_pins))
+
+        # Split keyboard Init
+        if self.split_side == "Left":
+                self.split_master_left = True
+        elif self.split_side == "Right":
+            self.split_master_left = False
+
+        if self.uart_pin is not None:
+            self.uart = self.init_uart(self.uart_pin)
+
+        self.matrix = MatrixScanner(
+            cols=self.col_pins,
+            rows=self.row_pins,
+            diode_orientation=self.diode_orientation,
+            rollover_cols_every_rows=getattr(self, 'rollover_cols_every_rows', None),
+            swap_indicies=getattr(self, 'swap_indicies', None),
+        )
+
+        if self.debug_enabled:
+            print("Firin' lazers. Keyboard is booted.")
+
+        while True:
+            state_changed = False
+
+            update = self.matrix.scan_for_changes()
+
+            if update is not None:
+                # This keyboard is a slave, and needs to send data to master
+                self._send_to_master(update)
+
+
+            if self.debug_enabled and state_changed:
+                print('New State: {}'.format(self._state._to_dict()))
+
+            gc.collect()

kmk/internal_state_slave.py

@@ -0,0 +1,76 @@
+from kmk.util import intify_coordinate
+
+
+class InternalState:
+    keys_pressed = set()
+    coord_keys_pressed = {}
+
+    def __init__(self, config):
+        self.config = config
+
+    def __repr__(self):
+        return 'InternalState({})'.format(self._to_dict())
+
+    def _to_dict(self):
+        ret = {
+            'keys_pressed': self.keys_pressed,
+        }
+
+        return ret
+
+    def _find_key_in_map(self, row, col):
+        # Later-added layers have priority. Sift through the layers
+        # in reverse order until we find a valid keycode object
+        for layer in self.reversed_active_layers:
+            layer_key = self.config.keymap[layer][row][col]
+
+            if self.config.debug_enabled:
+                print('Resolved key: {}'.format(layer_key))
+
+            return layer_key
+
+    def matrix_changed(self, row, col, is_pressed):
+        if self.config.debug_enabled:
+            print('Matrix changed (col, row, pressed?): {}, {}, {}'.format(
+                col, row, is_pressed,
+            ))
+
+        int_coord = intify_coordinate(row, col)
+        kc_changed = self._find_key_in_map(row, col)
+
+        if kc_changed is None:
+            print('No key accessible for col, row: {}, {}'.format(row, col))
+            return self
+
+        return self.process_key(kc_changed, is_pressed, int_coord, (row, col))
+
+    def process_key(self, key, is_pressed, coord_int=None, coord_raw=None):
+        if self.tapping:
+            self._process_tap_dance(key, is_pressed)
+        else:
+            if is_pressed:
+                key._on_press(self, coord_int, coord_raw)
+            else:
+                key._on_release(self, coord_int, coord_raw)
+
+            if self.config.leader_mode % 2 == 1:
+                self._process_leader_mode()
+
+        return self
+
+    def remove_key(self, keycode):
+        self.keys_pressed.discard(keycode)
+        return self.process_key(keycode, False)
+
+    def add_key(self, keycode):
+        self.keys_pressed.add(keycode)
+        return self.process_key(keycode, True)
+
+    def tap_key(self, keycode):
+        self.add_key(keycode)
+        # On the next cycle, we'll remove the key.
+        self.set_timeout(False, lambda: self.remove_key(keycode))
+
+        return self
+
+

kmk/mcus/circuitpython_samd21.py

@@ -0,0 +1,5 @@
+from kmk.firmware_slave import Firmware as _Firmware
+
+
+class Firmware(_Firmware):
+    hid_helper = None

user_keymaps/kdb424/nyquist_converter_slave.py

@@ -0,0 +1,26 @@
+import board
+
+from kmk.consts import DiodeOrientation
+from kmk.mcus.circuitpython_samd21 import Firmware
+from kmk.pins import Pin as P
+
+keyboard = Firmware()
+
+keyboard.col_pins = (P.RX, P.A1, P.A2, P.A3, P.A4, P.A5)
+keyboard.row_pins = (P.D13, P.D11, P.D10, P.D9, P.D7)
+keyboard.diode_orientation = DiodeOrientation.COLUMNS
+
+keyboard.split_type = "UART"
+keyboard.split_flip = True
+keyboard.split_offsets = [6, 6, 6, 6, 6]
+keyboard.uart_pin = board.SDA
+keyboard.extra_data_pin = board.SCL
+
+# ------------------User level config variables ---------------------------------------
+keyboard.debug_enabled = True
+
+# ---------------------- Keymap ---------------------------------------------------------
+
+
+if __name__ == '__main__':
+    keyboard.go()