-# == Parameters == #
-N_MUX = 1 # number of selection lines for the mux per io
-N_IO = 0
-N_MUX_IO = 0
-N_UART = 4
-N_SPI = 1
-N_TWI = 2
-N_SD = 2
-# ================ #
+import math
+import os.path
def missing_numbers(num_list):
return (list(num_list ^ set(original_list)))
-# == capture the number of IO cells required == #
-pinmapfile = open('pinmap.txt', 'r')
-max_io = 0
-muxed_cells = []
-dedicated_cells = []
-pinnumbers = []
-for lineno, line in enumerate(pinmapfile):
- line1 = line.split()
- if(len(line1) > 1):
- pinnumbers.append(int(line1[0]))
- if(len(line1) == 2): # dedicated
- dedicated_cells.append(line1)
- if(len(line1) > 2):
- muxed_cells.append(line1)
-pinnumbers = sorted(pinnumbers)
-# ============================================= #
-# ======= Multiple checks to see if the user has not screwed ======#
-missing_pins = missing_numbers(pinnumbers)
-
-# Check-1: ensure that no pin is present in both muxed and dedicated pins
-for muxcell in muxed_cells:
- for dedcel in dedicated_cells:
- if(dedcel[1] in muxcell):
- print("ERROR: " + str(dedcel[1]) + " present \
- in dedicated & muxed lists")
+class Parse(object):
+ # == Parameters == #
+ N_MUX = 1 # number of selection lines for the mux per io
+ N_IO = 0
+ N_MUX_IO = 0
+ ADDR_WIDTH = 64 # TODO parameterise
+ PADDR_WIDTH = 32 # TODO parameterise
+ DATA_WIDTH = 64 # TODO parameterise
+ # ================ #
+
+ def __init__(self, pth=None, verify=True):
+
+ max_io = 0
+ self.muxed_cells = []
+ self.dedicated_cells = []
+ self.pinnumbers = []
+ self.bankwidths = {}
+
+ fname = 'bankwidths.txt'
+ if pth:
+ fname = os.path.join(pth, fname)
+ with open(fname) as bankwidths:
+ for lineno, line in enumerate(bankwidths):
+ line1 = line[:-1].split('\t')
+ self.bankwidths[line1[0]] = int(line1[1])
+
+ # == capture the number of IO cells required == #
+ fname = 'pinmap.txt'
+ if pth:
+ fname = os.path.join(pth, fname)
+ with open(fname) as pinmapfile:
+ for lineno, line in enumerate(pinmapfile):
+ line1 = line[:-1].split('\t')
+ if len(line1) <= 2:
+ continue
+ self.pinnumbers.append(int(line1[0]))
+ # XXX TODO: dedicated pins in separate file
+ #if len(line1) == 2: # dedicated
+ # self.dedicated_cells.append(line1)
+ #else:
+ for i in range(1, len(line1)):
+ # XXX HORRIBLE HACK!!
+ if line1[i].startswith('pwm'):
+ line1[i] = 'pwm%s_out' % line1[i][4:]
+ self.muxed_cells.append(line1)
+
+ self.pinnumbers = sorted(self.pinnumbers)
+
+ if verify:
+ self.do_checks()
+
+ #self.cell_bitwidth = self.get_cell_bit_widths()
+
+ # == user info after parsing ================= #
+ self.N_IO = len(self.dedicated_cells) + len(self.muxed_cells)
+ print("Max number of IO: " + str(self.N_IO))
+ #print("Muxer bit width: " + str(self.cell_bitwidth))
+ print("Muxed IOs: " + str(len(self.muxed_cells)))
+ print("Dedicated IOs: " + str(len(self.dedicated_cells)))
+ #sys.exit(0)
+
+ def do_checks(self):
+ """ Multiple checks to see if the user has not screwed up
+ """
+ missing_pins = missing_numbers(self.pinnumbers)
+
+ # Check-1: ensure no pin is present in both muxed and dedicated pins
+ for muxcell in self.muxed_cells:
+ for dedcel in self.dedicated_cells:
+ if dedcel[1] in muxcell:
+ print("ERROR: " + str(dedcel[1]) + " present \
+ in dedicated & muxed lists")
+ exit(1)
+
+ # Check-2: if pin numbering is consistent:
+ if missing_pins:
+ print("ERROR: Following pins have no assignment: " +
+ str(missing_numbers(self.pinnumbers)))
exit(1)
+ unique = set(self.pinnumbers)
+ duplicate = False
+ for each in unique:
+ count = self.pinnumbers.count(each)
+ if count > 1:
+ print("ERROR: Multiple assignment for pin: " + str(each))
+ duplicate = True
+ if duplicate:
+ exit(1)
+
+ # Check-3: confirm if N_* matches the instances in the pinmap
+ # ============================================================== #
+
+ # TODO
+
+ def get_cell_bit_widths(self, banks):
+ max_num_cells = 0
+ for cell in self.muxed_cells:
+ print cell
+ max_num_cells = max(len(cell) - 1, max_num_cells)
+ return int(math.log(max_num_cells + 1, 2))
+
-# Check-2: if pin numbering is consistent:
-if missing_pins:
- print("ERROR: Following pins have no assignment: " +
- str(missing_numbers(pinnumbers)))
- exit(1)
-unique = set(pinnumbers)
-duplicate = False
-for each in unique:
- count = pinnumbers.count(each)
- if(count > 1):
- print("ERROR: Multiple assignment for pin: " + str(each))
- duplicate = True
-if(duplicate):
- exit(1)
-
-# Check-2: confirm if N_* matches the instances in the pinmap
-# ============================================================== #
-
-# == user info after parsin ================= #
-N_IO = len(dedicated_cells) + len(muxed_cells)
-print("Max number of IO: " + str(N_IO))
-print("Muxed IOs: " + str(len(muxed_cells)))
-print("Dedicated IOs: " + str(len(dedicated_cells)))
-# ============================================ #
+if __name__ == '__main__':
+ p = Parse()
+ print (p.N_IO)
projects / pinmux.git / blobdiff