import math
+import os.path
def missing_numbers(num_list):
N_IO = 0
N_MUX_IO = 0
Addressing = 'WORD'
- ADDR_WIDTH = 32
- DATA_WIDTH = 32
+ ADDR_WIDTH = 64 # TODO parameterise
+ PADDR_WIDTH = 32 # TODO parameterise
+ DATA_WIDTH = 64 # TODO parameterise
# ================ #
# Generating the number of bits for memory map #
lower_offset = 0
- if(Addressing == 'BYTE'):
+ if Addressing == 'BYTE':
lower_offset = 0
- elif(Addressing == 'HWORD'):
+ elif Addressing == 'HWORD':
lower_offset = 1
- elif(Addressing == 'WORD'):
+ elif Addressing == 'WORD':
lower_offset = 2
- elif(Addressing == 'DWORD'):
+ elif Addressing == 'DWORD':
lower_offset = 3
else:
print('ERROR: Addressing should be one of: BYTE, HWORD, WORD, DWORD')
exit(1)
- # == 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)
-
- upper_offset = lower_offset + int(math.log(len(muxed_cells), 2))
- # ============================================= #
- # ======= 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")
- exit(1)
-
- # 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)
+ def __init__(self, pth=None, verify=True):
+
+ max_io = 0
+ self.muxed_cells = []
+ self.dedicated_cells = []
+ self.pinnumbers = []
+
+ # == 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) <= 1:
+ 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)
+ self.upper_offset = self.lower_offset + \
+ int(math.log(len(self.muxed_cells), 2))
+
+ if verify:
+ self.do_checks()
+
+ self.cell_bitwidth = self.get_cell_bit_width()
+
+ # == 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)))
+
+ 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
+ # ============================================================== #
- # Check-2: confirm if N_* matches the instances in the pinmap
- # ============================================================== #
+ # TODO
- # == 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)))
- # ============================================ #
+ def get_cell_bit_width(self):
+ max_num_cells = 0
+ for cell in self.muxed_cells:
+ max_num_cells = max(len(cell) - 1, max_num_cells)
+ return int(math.log(max_num_cells + 1, 2))
if __name__ == '__main__':
p = Parse()
- print p.N_IO
+ print (p.N_IO)
projects / pinmux.git / blobdiff