X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/f3bc592818f3a69012d99f69d3bbf30b629df012..98f4a4378478d11e514acd7ff22a9c674f3cbca3:/src/adafruit_blinka/microcontroller/nxp_lpc4330/pin.py

diff --git a/src/adafruit_blinka/microcontroller/nxp_lpc4330/pin.py b/src/adafruit_blinka/microcontroller/nxp_lpc4330/pin.py
new file mode 100644
index 0000000..a67032e
--- /dev/null
+++ b/src/adafruit_blinka/microcontroller/nxp_lpc4330/pin.py
@@ -0,0 +1,204 @@
+"""NXP LPC4330 pin names"""
+try:
+    from greatfet import GreatFET
+    from greatfet.interfaces.adc import ADC
+
+    gf = GreatFET()
+except:
+    raise RuntimeError("Unable to create GreatFET object. Make sure library is installed and the device is connected.")
+
+class Pin:
+    """A basic Pin class for the NXP LPC4330 that acts as a wrapper for the GreatFET api."""
+
+    # pin modes
+    OUT = gf.gpio.DIRECTION_OUT
+    IN = gf.gpio.DIRECTION_IN
+    ADC = 2
+    DAC = 3
+
+    # pin values
+    LOW = 0
+    HIGH = 1
+
+    def __init__(self, pin_id=None):
+        self.id = pin_id
+        self._mode = None
+        self._pin = None
+
+    def init(self, mode=IN, pull=None):
+        """Initialize the Pin"""
+        if self.id is None:
+            raise RuntimeError("Can not init a None type pin.")
+        if mode in (Pin.IN, Pin.OUT):
+            if self.id not in gf.GPIO_MAPPINGS:
+                raise ValueError("Pin does not have GPIO capabilities")
+            self._pin = gf.gpio.get_pin(self.id)
+            self._pin.set_direction(mode)
+        elif mode == Pin.ADC:
+            # ADC only available on these pins
+            if self.id not in gf.ADC_MAPPINGS:
+                raise ValueError("Pin does not have ADC capabilities")
+            gf.ADC_MAPPINGS[self.id]
+            # TODO: figure out a way to pass the ADC number without breaking the interface
+            self._pin = ADC(gf, self.id)
+        elif mode == Pin.DAC:
+            # DAC only available on these pins
+            if self.id not in ("J2_P5"):
+                raise ValueError("Pin does not have DAC capabilities")
+            self._pin = gf.apis.dac
+            self._pin.initialize()
+        else:
+            raise ValueError("Incorrect pin mode: {}".format(mode))
+        self._mode = mode
+
+    def value(self, val=None):
+        """Set or return the Pin Value"""
+        # Digital In / Out
+        if self._mode in (Pin.IN, Pin.OUT):
+            # digital read
+            if val is None:
+                return self._pin.get_state()
+            # digital write
+            if val in (Pin.LOW, Pin.HIGH):
+                self._pin.set_state(val)
+                return None
+            # nope
+            raise ValueError("Invalid value for pin.")
+        # Analog In
+        if self._mode == Pin.ADC:
+            if val is None:
+                # Read ADC here
+                return self._pin.read_samples()[0]
+            # read only
+            raise AttributeError("'AnalogIn' object has no attribute 'value'")
+        # Analog Out
+        if self._mode == Pin.DAC:
+            if val is None:
+                # write only
+                raise AttributeError("unreadable attribute")
+            # Set DAC Here
+            self._pin.set_value(int(val))
+            return None
+        raise RuntimeError(
+            "No action for mode {} with value {}".format(self._mode, val)
+        )
+
+# create pin instances for each pin
+# J1 Header Pins
+J1_P3 = Pin("J1_P3")
+J1_P4 = Pin("J1_P4")
+J1_P5 = Pin("J1_P5")
+J1_P6 = Pin("J1_P6")
+J1_P7 = Pin("J1_P7")
+J1_P8 = Pin("J1_P8")
+J1_P9 = Pin("J1_P9")
+J1_P10 = Pin("J1_P10")
+J1_P12 = Pin("J1_P12")
+J1_P13 = Pin("J1_P13")
+J1_P14 = Pin("J1_P14")
+J1_P15 = Pin("J1_P15")
+J1_P16 = Pin("J1_P16")
+J1_P17 = Pin("J1_P17")
+J1_P18 = Pin("J1_P18")
+J1_P19 = Pin("J1_P19")
+J1_P20 = Pin("J1_P20")
+J1_P21 = Pin("J1_P21")
+J1_P22 = Pin("J1_P22")
+J1_P23 = Pin("J1_P23")
+J1_P24 = Pin("J1_P24")
+J1_P25 = Pin("J1_P25")
+J1_P26 = Pin("J1_P26")
+J1_P27 = Pin("J1_P27")
+J1_P28 = Pin("J1_P28")
+J1_P29 = Pin("J1_P29")
+J1_P30 = Pin("J1_P30")
+J1_P31 = Pin("J1_P31")
+J1_P32 = Pin("J1_P32")
+J1_P33 = Pin("J1_P33")
+J1_P34 = Pin("J1_P34")
+J1_P35 = Pin("J1_P35")
+J1_P37 = Pin("J1_P37")
+J1_P39 = Pin("J1_P39")  # MOSI
+J1_P40 = Pin("J1_P40")  # MISO
+
+
+
+# J2 Header Pins
+J2_P3 = Pin("J2_P3")
+J2_P4 = Pin("J2_P4")
+J2_P5 = Pin("J2_P5")    # ADC, ADC, DAC
+J2_P6 = Pin("J2_P6")
+J2_P7 = Pin("J2_P7")
+J2_P8 = Pin("J2_P8")
+J2_P9 = Pin("J2_P9")    # ADC, GPIO
+J2_P10 = Pin("J2_P10")
+J2_P13 = Pin("J2_P13")
+J2_P14 = Pin("J2_P14")
+J2_P15 = Pin("J2_P15")
+J2_P16 = Pin("J2_P16")  # GPIO, ADC
+J2_P18 = Pin("J2_P18")
+J2_P19 = Pin("J2_P19")
+J2_P20 = Pin("J2_P20")
+J2_P22 = Pin("J2_P22")
+J2_P23 = Pin("J2_P23")
+J2_P24 = Pin("J2_P24")
+J2_P25 = Pin("J2_P25")
+J2_P27 = Pin("J2_P27")
+J2_P28 = Pin("J2_P28")
+J2_P29 = Pin("J2_P29")
+J2_P30 = Pin("J2_P30")
+J2_P31 = Pin("J2_P31")
+J2_P33 = Pin("J2_P33")
+J2_P34 = Pin("J2_P34")
+J2_P35 = Pin("J2_P35")
+J2_P36 = Pin("J2_P36")
+J2_P37 = Pin("J2_P37")
+J2_P38 = Pin("J2_P38")
+
+# Bonus Row Pins
+J7_P2 = Pin("J7_P2")
+J7_P3 = Pin("J7_P3")
+J7_P4 = Pin("J7_P4")    # ADC, ADC
+J7_P5 = Pin("J7_P5")    # ADC, ADC
+J7_P6 = Pin("J7_P6")
+J7_P7 = Pin("J7_P7")
+J7_P8 = Pin("J7_P8")
+J7_P13 = Pin("J7_P13")
+J7_P14 = Pin("J7_P14")
+J7_P15 = Pin("J7_P15")
+J7_P16 = Pin("J7_P16")
+J7_P17 = Pin("J7_P17")
+J7_P18 = Pin("J7_P18")
+
+SCL = Pin()
+SDA = Pin()
+
+SCK = Pin()
+MOSI = J1_P39
+MISO = J1_P40
+
+TX = J1_P33
+RX = J1_P34
+
+# ordered as uartId, txId, rxId
+uartPorts = ((0, TX, RX),)
+
+# pwm outputs: pwm channel and pin
+pwmOuts = (
+    (0, J1_P4),
+    (1, J1_P6),
+    (2, J1_P28),
+    (3, J1_P30),
+    (4, J2_P36),
+    (5, J2_P34),
+    (6, J2_P33),
+    (7, J1_P34),
+    (8, J2_P9),
+    (9, J1_P6),
+    (10, J1_P25),
+    (11, J1_P32),
+    (12, J1_P31),
+    (13, J2_P3),
+    (14, J1_P3),
+    (15, J1_P5),
+)