(Almost done) pin refactoring

[matches/MCTX3420.git] / notes / pin maps / gpio / parseit.py

diff --git a/notes/pin maps/gpio/parseit.py b/notes/pin maps/gpio/parseit.py
new file mode 100644 (file)
index 0000000..e106f07
--- /dev/null
+++ b/notes/pin maps/gpio/parseit.py
@@ -0,0 +1,52 @@
+import sys, re, os
+#lut size of 93 (46 pins/header; 2 headers; padding for 1-indexed)
+
+def doit(x):
+    '''generate the lut from the csv'''
+    lut = {}
+    reverselut = {}
+    
+    with open(x) as f:
+        for line in f:
+            m = re.search("P(\d)_(\d+),(\d+)", line)
+            header = int(m.group(1))
+            pin = int(m.group(2))
+            gpionum = int(m.group(3))
+
+            if header==8:
+                header = 0
+            else:
+                header = 1
+
+            lut[header*46+pin] = gpionum
+            reverselut[gpionum] = header*46+pin
+    lutarr = []
+    reverselutarr =[]
+    
+    for i in range(0, 93):
+        lutarr.append(lut.get(i, 0))
+
+    for i in range(0, 118): #Max safe GPIO is 117
+        reverselutarr.append(reverselut.get(i, 0))
+        
+    return (lutarr, reverselutarr)
+
+def printlut(lut, name="g_gpio_lut"):
+    '''print the lut for C'''
+    rowsize = 14
+    print("const unsigned char %s[%d] = {" % (name, len(lut)))
+    low = 0
+    high = rowsize
+    for i in range(0, len(lut), rowsize):
+        print("\t", end="")
+        print(*("%3d" % g for g in lut[low:high]), sep=', ', end="")
+        low = high
+        high += rowsize
+        if low < len(lut):
+            print(",")
+        else:
+            print("")
+    print("}")
+
+
+