X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/e8e07c13c85ef6f7d68691e93d7f6f5a749cd076..6892349c68d92b78bd1d20c7c936f8df9478c114:/src/adafruit_blinka/microcontroller/raspi_23/spi.py

diff --git a/src/adafruit_blinka/microcontroller/raspi_23/spi.py b/src/adafruit_blinka/microcontroller/raspi_23/spi.py
deleted file mode 100755
index b905873..0000000
--- a/src/adafruit_blinka/microcontroller/raspi_23/spi.py
+++ /dev/null
@@ -1,100 +0,0 @@
-import spidev
-import time
-
-class SPI:
-    MSB = 0
-    LSB = 1
-    CPHA = 1
-    CPOL = 2
-
-    baudrate = 100000
-    mode = 0
-    bits = 8
-
-    def __init__(self, portid):
-        self._port = portid
-        self._spi = spidev.SpiDev()
-
-    def init(self, baudrate=100000, polarity=0, phase=0, bits=8,
-                  firstbit=MSB, sck=None, mosi=None, miso=None):
-        mode = 0
-        if polarity:
-            mode |= self.CPOL
-        if phase:
-            mode |= self.CPHA
-
-        self.clock_pin = sck
-        self.mosi_pin = mosi
-        self.miso_pin = miso
-        self.baudrate = baudrate
-        self.mode = mode
-        self.bits = bits
-
-    def write(self, buf, start=0, end=None):
-        if not buf:
-            return
-        if end is None:
-            end = len(buf)
-        try:
-            self._spi.open(self._port, 0)
-            try:
-              self._spi.no_cs = True  # this doesn't work but try anyways
-            except AttributeError:
-              pass
-            self._spi.max_speed_hz = self.baudrate
-            self._spi.mode = self.mode
-            self._spi.bits_per_word = self.bits
-            self._spi.writebytes([x for x in buf[start:end]])
-            self._spi.close()
-        except FileNotFoundError as not_found:
-            print("Could not open SPI device - check if SPI is enabled in kernel!")
-            raise
-
-    def readinto(self, buf, start=0, end=None):
-        if not buf:
-            return
-        if end is None:
-            end = len(buf)
-        try:
-            self._spi.open(self._port, 0)
-            try:
-              self._spi.no_cs = True  # this doesn't work but try anyways
-            except AttributeError:
-              pass
-            self._spi.max_speed_hz = self.baudrate
-            self._spi.mode = self.mode
-            self._spi.bits_per_word = self.bits
-            data = self._spi.readbytes(end-start)
-            for i in range(end-start):  # 'readinto' the given buffer
-              buf[start+i] = data[i]
-            self._spi.close()
-        except FileNotFoundError as not_found:
-            print("Could not open SPI device - check if SPI is enabled in kernel!")
-            raise
-
-    def write_readinto(self, buffer_out, buffer_in, out_start=0,
-                       out_end=None, in_start=0, in_end=None):
-        if not buffer_out or not buffer_in:
-            return
-        if out_end is None:
-            out_end = len(buffer_out)        
-        if in_end is None:
-            in_end = len(buffer_in)
-        if out_end - out_start != in_end - in_start:
-            raise RuntimeError('Buffer slices must be of equal length.')
-        try:
-            self._spi.open(self._port, 0)
-            try:
-                self._spi.no_cs = True  # this doesn't work but try anyways
-            except AttributeError:
-                pass
-            self._spi.max_speed_hz = self.baudrate
-            self._spi.mode = self.mode
-            self._spi.bits_per_word = self.bits
-            data = self._spi.xfer(list(buffer_out[out_start:out_end+1]))
-            for i in range((in_end - in_start)):
-                buffer_in[i+in_start] = data[i]
-            self._spi.close()
-        except FileNotFoundError as not_found:
-            print("Could not open SPI device - check if SPI is enabled in kernel!")
-            raise