X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fparse.py;h=6ab3dd094230c4a3ce66f34f8f0f8228da78342c;hb=8c41066184b2196a45421619d98ba0be890a1c05;hp=d9358779b4cf06fcaed5af18c2d6e7f77b2f8322;hpb=5b1784cb89c6ccadcb20ae6548763052b1fbf993;p=pinmux.git diff --git a/src/parse.py b/src/parse.py index d935877..6ab3dd0 100644 --- a/src/parse.py +++ b/src/parse.py @@ -1,4 +1,5 @@ import math +import os.path def missing_numbers(num_list): @@ -12,80 +13,103 @@ class Parse(object): N_MUX = 1 # number of selection lines for the mux per io 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'): - lower_offset = 0 - elif(Addressing == 'HWORD'): - lower_offset = 1 - elif(Addressing == 'WORD'): - lower_offset = 2 - 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) - - # 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))) - # ============================================ # + 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)) if __name__ == '__main__': p = Parse() - print p.N_IO + print (p.N_IO)