src/spec/gen.py

   1 import os
   2 import os.path
   3 from spec.interfaces import Pinouts
   4
   5
   6 def specgen(pth, pinouts, bankspec, fixedpins):
   7     """ generates a specification of pinouts (tsv files)
   8         for reading in by pinmux
   9     """
  10     pth = pth or ''
  11     #print bankspec.keys()
  12     #print fixedpins.keys()
  13     if not os.path.exists(pth):
  14         os.makedirs(pth)
  15     with open(os.path.join(pth, 'interfaces.txt'), 'w') as f:
  16         for k in pinouts.fnspec.keys():
  17             s = pinouts.fnspec[k]
  18             f.write("%s\t%d\n" % (k.lower(), len(s)))
  19             s0 = s[s.keys()[0]]  # hack, take first
  20             with open(os.path.join(pth, '%s.txt' % k.lower()), 'w') as g:
  21                 if len(s0.pingroup) == 1:  # only one function, grouped higher
  22                     for ks in s.keys():  # grouped by interface
  23                         assert False, "TODO, single-function"
  24                         fntype = 'inout'  # XXX TODO
  25                         k = s[ks].suffix
  26                         k_ = k.lower()
  27                         g.write("%s\t%s\n" % (k_, fntype))
  28                 else:
  29                     for pinname in s0.pingroup:
  30                         fntype = s0.fntype.get(pinname, 'inout')
  31                         pn = pinname.lower()
  32                         g.write("%s\t%s\n" % (pn, fntype))
  33
  34     pks = sorted(pinouts.keys())
  35
  36     # truly dreadful way to work out the max mux size...
  37     muxsz = 0
  38     for k in pks:
  39         for m in pinouts[k].keys():
  40             muxsz = max(muxsz, m + 1)
  41
  42     # write out the mux...
  43     with open(os.path.join(pth, 'pinmap.txt'), 'w') as g:
  44         for k in pks:
  45             res = [str(k)]
  46             # append pin mux
  47             for midx in range(muxsz):
  48                 if midx in pinouts[k]:
  49                     fname = pinouts[k][midx][0]
  50                 else:
  51                     fname = ''
  52                 res.append(fname.lower())
  53             g.write('\t'.join(res) + '\n')
  54
  55     # ... and the dedicated pins
  56     with open(os.path.join(pth, 'fixedpins.txt'), 'w') as g:
  57         for p in fixedpins:
  58             p = map(str, p)
  59             p = map(str.lower, p)
  60             g.write('\t'.join(p) + '\n')