Fix some syntax errors and add binho nova to busio.py for i2c and spi

[Adafruit_Blinka-hackapet.git] / src / adafruit_blinka / microcontroller / nova / spi.py

diff --git a/src/adafruit_blinka/microcontroller/nova/spi.py b/src/adafruit_blinka/microcontroller/nova/spi.py
index 7882f2333d5c97e5c1075cbf849f732c72b3bfd9..345468ce9af314ec044d7cf636bc9c211577e96c 100644 (file)
--- a/src/adafruit_blinka/microcontroller/nova/spi.py
+++ b/src/adafruit_blinka/microcontroller/nova/spi.py
@@ -4,42 +4,56 @@ class SPI:
     MSB = 0
 
     def __init__(self):
     MSB = 0
 
     def __init__(self):

-        from pyftdi.spi import SpiController
-        self._spi = SpiController(cs_count=1)
-        self._spi.configure('ftdi:///1')
-        self._port = self._spi.get_port(0)
-        self._port.set_frequency(100000)
-        self._port._cpol = 0
-        self._port._cpha = 0
-        # Change GPIO controller to SPI
-        Pin.ft232h_gpio = self._spi.get_gpio()
+        from binhoHostAdapter import binhoHostAdapter
+        from binhoHostAdapter import binhoUtilities
+
+        utilities = binhoUtilities.binhoUtilities()
+        devices = utilities.listAvailableDevices()
+
+        if len(devices) > 0:
+
+            self._nova = binhoHostAdapter.binhoHostAdapter(devices[0])
+            self._nova.setOperationMode(0, 'SPI')
+            self._nova.setClockSPI(0, 12000000)
+            self._nova.setModeSPI(0, 0)
+            self._nova.setIOpinMode(0, 'DOUT')
+            self._nova.setIOpinValue(0, 'HIGH')
+            # Cpol and Cpha set by mode
+            # Mode  Cpol Cpha
+            #  0     0    0
+            #  1     0    1
+            #  2     1    0
+            #  3     1    1
+
+        else:
+            raise RuntimeError('No Binho host adapter found!')

 
     def init(self, baudrate=100000, polarity=0, phase=0, bits=8,
                   firstbit=MSB, sck=None, mosi=None, miso=None):
 
     def init(self, baudrate=100000, polarity=0, phase=0, bits=8,
                   firstbit=MSB, sck=None, mosi=None, miso=None):

-        self._port.set_frequency(baudrate)
-        self._port._cpol = polarity
-        self._port._cpha = phase
+        self._nova.setClockSPI(0, baudrate)
+        self._nova.setModeSPI(0, (polarity<<1) | (phase))

 
     @property
     def frequency(self):
 
     @property
     def frequency(self):

-        return self._port.frequency
+        return self._nova.getClockSPI(0)

 
     def write(self, buf, start=0, end=None):
         end = end if end else len(buf)
 
     def write(self, buf, start=0, end=None):
         end = end if end else len(buf)

-        chunks, rest = divmod(end - start, self._spi.PAYLOAD_MAX_LENGTH)
-        for i in range(chunks):
-            chunk_start = start + i * self._spi.PAYLOAD_MAX_LENGTH
-            chunk_end = chunk_start + self._spi.PAYLOAD_MAX_LENGTH
-            self._port.write(buf[chunk_start:chunk_end])
-        if rest:
-            self._port.write(buf[-1*rest:])
+        #chunks, rest = divmod(end - start, self._spi.PAYLOAD_MAX_LENGTH)
+        #for i in range(chunks):
+        #    chunk_start = start + i * self._spi.PAYLOAD_MAX_LENGTH
+        #    chunk_end = chunk_start + self._spi.PAYLOAD_MAX_LENGTH
+        #    self._port.write(buf[chunk_start:chunk_end])
+        #if rest:
+        #    self._port.write(buf[-1*rest:])

 
     def readinto(self, buf, start=0, end=None, write_value=0):
         end = end if end else len(buf)
 
     def readinto(self, buf, start=0, end=None, write_value=0):
         end = end if end else len(buf)

-        result = self._port.read(end-start)
-        for i, b in enumerate(result):
-            buf[start+i] = b
-
+        self._nova.setIOpinValue(0, 'LOW')
+        for i in range(start, end):
+            buf[start+i] = int(getSpiReceivedData(self._nova.transferSPI(0, 0x00)), 16)
+        self._nova.setIOpinValue(0, 'HIGH')
+"""

     def write_readinto(self, buffer_out, buffer_in,  out_start=0, out_end=None, in_start=0, in_end=None):
         out_end = out_end if out_end else len(buffer_out)
         in_end = in_end if in_end else len(buffer_in)
     def write_readinto(self, buffer_out, buffer_in,  out_start=0, out_end=None, in_start=0, in_end=None):
         out_end = out_end if out_end else len(buffer_out)
         in_end = in_end if in_end else len(buffer_in)


@@ -47,3 +61,4 @@ class SPI:
                                      in_end-in_start, duplex=True)
         for i, b in enumerate(result):
             buffer_in[in_start+i] = b
                                      in_end-in_start, duplex=True)
         for i, b in enumerate(result):
             buffer_in[in_start+i] = b

+"""
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