4 from spec
.interfaces
import Pinouts
7 def specgen(of
, pth
, pinouts
, bankspec
, muxwidths
, pinbanks
, fixedpins
,
9 """ generates a specification of pinouts (tsv files)
10 for reading in by pinmux.
13 * interfaces.txt - contains name and number of interfaces
14 * {interfacename}.txt - contains name of pin, type, and bus
16 type may be in, out or inout.
17 if type is "inout" then a THIRD optional parameter of type
18 "bus" indicates whether the bus is ganged together. in
19 future this may be "bus1", "bus2" and so on if an interface
20 contains more than one ganged group.
22 basically if the function needs to control whether a group
23 of pins shall be switched from input to output (as opposed
24 to the *pinmux* via user control deciding that), bus is
25 the way to indicate it.
28 #print bankspec.keys()
29 #print fixedpins.keys()
30 #print pinouts.ganged.items()
31 if not os
.path
.exists(pth
):
33 with
open(os
.path
.join(pth
, 'configs.txt'), 'w') as f
:
34 f
.write("%s\n" % json
.dumps(configs
))
36 with
open(os
.path
.join(pth
, 'interfaces.txt'), 'w') as f
:
37 for k
in pinouts
.fnspec
.keys():
39 line
= [k
.lower(), str(len(s
))]
40 line
= '\t'.join(line
)
41 f
.write("%s\n" % line
)
42 s0
= s
[list(s
.keys())[0]] # hack, take first
43 gangedgroup
= pinouts
.ganged
[k
]
44 with
open(os
.path
.join(pth
, '%s.txt' % k
.lower()), 'w') as g
:
45 if len(s0
.pingroup
) == 1: # only one function, grouped higher
46 for ks
in s
.keys(): # grouped by interface
47 assert False, "TODO, single-function"
48 fntype
= 'inout' # XXX TODO
51 g
.write("%s\t%s\n" % (k_
, fntype
))
53 for pinname
in s0
.pingroup
:
54 fntype
= s0
.fntype
.get(pinname
, 'inout')
56 g
.write("%s\t%s" % (pn
, fntype
))
57 if fntype
== 'inout' and pinname
in gangedgroup
:
61 # work out range of bankspecs
63 for k
, v
in bankspec
.items():
64 bankpins
.append((v
, k
))
70 pks
= sorted(pinouts
.keys())
72 # truly dreadful way to work out the max mux size...
74 for (sz
, bname
) in bankpins
:
75 print "keys", k
, sz
, bname
78 muxentries
[k
] = muxwidths
[bname
]
83 # write out the mux...
84 with
open(os
.path
.join(pth
, 'pinmap.txt'), 'w') as g
:
88 res
= [str(k
), bank
, str(muxsz
)]
90 for midx
in range(muxsz
):
91 if midx
in pinouts
[k
]:
92 fname
= pinouts
[k
][midx
][0]
95 res
.append(fname
.lower())
96 g
.write('\t'.join(res
) + '\n')
98 # ... and the dedicated pins
99 with
open(os
.path
.join(pth
, 'fixedpins.txt'), 'w') as g
:
102 p
= map(str.lower
, p
)
103 g
.write('\t'.join(p
) + '\n')
105 # lists bankspec, shows where the pin-numbers *start*
106 of
.write("# Pin Bank starting points and lengths\n\n")
107 with
open(os
.path
.join(pth
, 'pinspec.txt'), 'w') as g
:
108 keys
= sorted(bankspec
.keys())
110 pinstart
= bankspec
[bank
]
111 wid
= muxwidths
[bank
]
112 of
.write("* %s %d %d %d\n" % (bank
, pinstart
, pinbanks
[bank
], wid
))
113 g
.write("%s\t%d\t%d\t%d\n" % (bank
, pinstart
, pinbanks
[bank
], wid
))