src/bsv/peripheral_gen/jtag.py

   1 from bsv.peripheral_gen.base import PBase
   2
   3
   4 class jtag(PBase):
   5
   6     def slowimport(self):
   7         return "    import jtagtdm::*;\n"
   8
   9     def extfastifinstance(self, name, count):
  10         # YUK!
  11         print "jtag", name, count
  12         return """\
  13             method Action tms_i(Bit#(1) tms);
  14                 {0}.tms_i(tms);
  15             endmethod
  16             method Action tdi_i(Bit#(1) tdi);
  17                 {0}.tdi_i(tdi);
  18             endmethod
  19             method Action bs_chain_i(Bit#(1) bs_chain);
  20                 {0}.bs_chain_i(bs_chain);
  21             endmethod
  22             method Bit#(1) shiftBscan2Edge={0}.shiftBscan2Edge;
  23             method Bit#(1) selectJtagInput={0}.selectJtagInput;
  24             method Bit#(1) selectJtagOutput={0}.selectJtagOutput;
  25             method Bit#(1) updateBscan={0}.updateBscan;
  26             method Bit#(1) bscan_in={0}.bscan_in;
  27             method Bit#(1) scan_shift_en={0}.scan_shift_en;
  28             method Bit#(1) tdo={0}.tdo;
  29             method Bit#(1) tdo_oe={0}.tdo_oe;
  30 """.format(self.name, count)
  31
  32
  33
  34     def fastifdecl(self, name, count):
  35         # YUK!
  36         template = """ \
  37          (*always_ready,always_enabled*) method Action tms_i(Bit#(1) tms);
  38          (*always_ready,always_enabled*) method Action tdi_i(Bit#(1) tdi);
  39          (*always_ready,always_enabled*)
  40                                  method Action bs_chain_i(Bit#(1) bs_chain);
  41          (*always_ready,always_enabled*) method Bit#(1) shiftBscan2Edge;
  42          (*always_ready,always_enabled*) method Bit#(1) selectJtagInput;
  43          (*always_ready,always_enabled*) method Bit#(1) selectJtagOutput;
  44          (*always_ready,always_enabled*) method Bit#(1) updateBscan;
  45          (*always_ready,always_enabled*) method Bit#(1) bscan_in;
  46          (*always_ready,always_enabled*) method Bit#(1) scan_shift_en;
  47          (*always_ready,always_enabled*) method Bit#(1) tdo;
  48          (*always_ready,always_enabled*) method Bit#(1) tdo_oe;
  49 """
  50         return template
  51
  52     def mkfast_peripheral(self):
  53         return """\
  54         Ifc_jtagdtm jtag{0} <-mkjtagdtm(clocked_by tck, reset_by trst);
  55         rule drive_tmp_scan_outs;
  56             jtag{0}.scan_out_1_i(1'b0);
  57             jtag{0}.scan_out_2_i(1'b0);
  58             jtag{0}.scan_out_3_i(1'b0);
  59             jtag{0}.scan_out_4_i(1'b0);
  60             jtag{0}.scan_out_5_i(1'b0);
  61         endrule
  62 """
  63     def axi_slave_name(self, name, ifacenum, typ=''):
  64         return ''
  65
  66     def axi_slave_idx(self, idx, name, ifacenum, typ):
  67         return ('', 0)
  68
  69     def axi_addr_map(self, name, ifacenum):
  70         return ''