Hardware bring up

Author: georgeharker

adafruit_neotrellis/multitrellis.py

@@ -29,70 +29,112 @@
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_neotrellis.git"
 
+from typing import List, Dict, Tuple, Sequence
 from time import sleep
 from micropython import const
+from adafruit_neotrellis.neotrellis import NeoTrellis
 from adafruit_seesaw.keypad import KeyEvent
 
-_NEO_TRELLIS_NUM_KEYS = const(16)
-
-
-def _key(xval):
-    return int(int(xval / 4) * 8 + (xval % 4))
-
-
-def _seesaw_key(xval):
-    return int(int(xval / 8) * 4 + (xval % 8))
-
 
 class MultiTrellis:
     """Driver for multiple connected Adafruit NeoTrellis boards."""
 
+    _trelli: List[List[NeoTrellis]]
+    _rows: int
+    _cols: int
+    _key_pads: List[List[NeoTrellis]]
+
     def __init__(self, neotrellis_array):
         self._trelli = neotrellis_array
         self._rows = len(neotrellis_array)
         self._cols = len(neotrellis_array[0])
+        col_size_sum = [0 for _ in range(self._cols)]
+        row_size_sum = [0 for _ in range(self._rows)]
+        for py in range(self._rows):
+            for px in range(self._cols):
+                assert len(self._trelli[py]) == self._cols
+
+                tr0 = self._trelli[0][px]
+                tc0 = self._trelli[py][0]
+                t = self._trelli[py][px]
+
+                # All columns must have similar shape
+                assert t.height == tc0.height
+                # All rows must have similar shape
+                assert t.width == tr0.width
+
+                y_base = row_size_sum[py - 1] if py > 0 else 0
+                x_base = col_size_sum[px - 1] if px > 0 else 0
+                row_size_sum[py] = t.height + y_base
+                col_size_sum[px] = t.width + x_base
+
+                t.x_base = x_base
+                t.y_base = y_base
+
+        self._width = col_size_sum[self._cols - 1]
+        self._height = row_size_sum[self._rows - 1]
+        self._key_pads : List[List[NeoTrellis]] = [[None for _ in range(self._width)]
+            for _ in range(self._height)]
+
+        for py in range(self._rows):
+            for px in range(self._cols):
+                t = self._trelli[py][px]
+                for ky in range(t.height):
+                    for kx in range(t.width):
+                        x = t.x_base + kx
+                        y = t.y_base + ky
+                        self._key_pads[y][x] = t
+
+    @property
+    def width(self):
+        return self._width
+
+    @property
+    def height(self):
+        return self._height
+
+    @property
+    def rows(self):
+        return self._rowa
+
+    @property
+    def cols(self):
+        return self._cols
+
+    def __len__(self) -> int:
+        return self._rows
+
+    def __getitem__(self, subscript: int) -> Sequence[NeoTrellis]:
+        return self._trelli[subscript]
+
+    def get_key_pad(self, x: int, y: int) -> NeoTrellis:
+        return self._key_pads[y][x]
 
     def activate_key(self, x, y, edge, enable=True):
         """Activate or deactivate a key on the trellis. x and y are the index
         of the key measured from the top lefthand corner. Edge specifies what
         edge to register an event on and can be NeoTrellis.EDGE_FALLING or
         NeoTrellis.EDGE_RISING. enable should be set to True if the event is
         to be enabled, or False if the event is to be disabled."""
-        xkey = x % 4
-        ykey = int(int(y % 4) * 4 / 4)
-        self._trelli[int(y / 4)][int(x / 4)].activate_key(ykey * 4 + xkey, edge, enable)
+        pad = self._key_pads[y][x]
+        pad.activate_key(pad.key_index(x, y), enable)
 
     def set_callback(self, x, y, function):
         """Set a callback function for when an event for the key at index x, y
         (measured from the top lefthand corner) is detected."""
-        xkey = x % 4
-        ykey = int(int(y % 4) * 4 / 4)
-        self._trelli[int(y / 4)][int(x / 4)].callbacks[ykey * 4 + xkey] = function
+        pad = self._key_pads[y][x]
+        pad.callbacks[pad.key_index(x, y)] = function
 
     def color(self, x, y, color):
         """Set the color of the pixel at index x, y measured from the top
         lefthand corner of the matrix"""
-        xkey = x % 4
-        ykey = int(int(y % 4) * 4 / 4)
-        self._trelli[int(y / 4)][int(x / 4)].pixels[ykey * 4 + xkey] = color
+        pad = self._key_pads[y][x]
+        pad.pixels[pad.key_index(x, y)] = color
 
     def sync(self):
         """Read all trellis boards in the matrix and call any callbacks"""
         for _n in range(self._rows):
             for _m in range(self._cols):
 
                 _t = self._trelli[_n][_m]
-                available = _t.count
-                sleep(0.0005)
-                if available > 0:
-                    available = available + 2
-                    buf = _t.read_keypad(available)
-                    for raw in buf:
-                        evt = KeyEvent(_seesaw_key((raw >> 2) & 0x3F), raw & 0x3)
-                        if (
-                            evt.number < _NEO_TRELLIS_NUM_KEYS
-                            and _t.callbacks[evt.number] is not None
-                        ):
-                            y = int(evt.number / 4) + _n * 4
-                            x = int(evt.number % 4) + _m * 4
-                            _t.callbacks[evt.number](x, y, evt.edge)
+                _t.sync()

adafruit_neotrellis/neotrellis.py

@@ -47,8 +47,9 @@
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_neotrellis.git"
 
 from time import sleep
+from typing import List, Callable
 from micropython import const
-from adafruit_seesaw.keypad import Keypad, KeyEvent
+from adafruit_seesaw.keypad import Keypad, KeyEvent, SeesawKeyResponse, ResponseType
 from adafruit_seesaw.neopixel import NeoPixel
 
 _NEO_TRELLIS_ADDR = const(0x2E)
@@ -59,21 +60,27 @@
 _NEO_TRELLIS_NUM_COLS = const(8)
 _NEO_TRELLIS_NUM_KEYS = const(64)
 
-_NEO_TRELLIS_MAX_CALLBACKS = const(64)
-
-
-def _key(xval):
-    return int(int(xval / 8) * 8 + (xval % 8))
-
-
-def _seesaw_key(xval):
-    return int(int(xval / 8) * 8 + (xval % 8))
-
 class NeoTrellis(Keypad):
     """Driver for the Adafruit NeoTrellis."""
 
-    def __init__(self, i2c_bus, interrupt=False, addr=_NEO_TRELLIS_ADDR, drdy=None):
+    width: int
+    height: int
+    x_base: int
+    y_base: int
+    interrupt_enabled: bool
+    callbacks: List[Callable[[KeyEvent], None]]
+    pixels: List[NeoPixel]
+
+    def __init__(self, i2c_bus, interrupt=False,
+                 addr=_NEO_TRELLIS_ADDR, drdy=None,
+                 width=_NEO_TRELLIS_NUM_COLS,
+                 height=_NEO_TRELLIS_NUM_ROWS,
+                 x_base = 0, y_base = 0):
         super().__init__(i2c_bus, addr, drdy)
+        self.width = width
+        self.height = height
+        self.x_base = x_base
+        self.y_base = y_base
         self.interrupt_enabled = interrupt
         self.callbacks = [None] * _NEO_TRELLIS_NUM_KEYS
         self.pixels = NeoPixel(self, _NEO_TRELLIS_NEOPIX_PIN, _NEO_TRELLIS_NUM_KEYS)
@@ -84,23 +91,28 @@ def activate_key(self, key, edge, enable=True):
            NeoTrellis.EDGE_FALLING or NeoTrellis.EDGE_RISING. enable should be set
            to True if the event is to be enabled, or False if the event is to be
            disabled."""
-        self.set_event(_key(key), edge, enable)
+        self.set_event(key, edge, enable)
+
+    def clear(self):
+        self.pixels.fill((0, 0, 0))
 
     def sync(self):
         """read any events from the Trellis hardware and call associated
            callbacks"""
         available = self.count
-        sleep(0.0005)
+        sleep(0.0005)       # FIXME: resolve
         if available > 0:
-            # FIXME: used to read
-            # available = available + 2
-            # why??
-
             buf = self.read_keypad(available)
-            for response in buf:
-                raw = response.data
-                evt = KeyEvent(_seesaw_key((raw >> 2) & 0x3F), raw & 0x3)
-                if (evt.number < _NEO_TRELLIS_NUM_KEYS and
-                        self.callbacks[evt.number] is not None):
-                    self.callbacks[evt.number](evt)
+            for r in buf:
+                if r.response_type == ResponseType.TYPE_KEY:
+                    (e, n) = r.data_edge_num()
+                    evt = KeyEvent(n, e)
+                    if (
+                        evt.number < _NEO_TRELLIS_NUM_KEYS
+                        and self.callbacks[evt.number] is not None
+                    ):
+                        self.callbacks[evt.number](evt)
+
+    def key_index(self, x, y):
+        return int((y - self.y_base) * self.width + (x - self.x_base))