src/bsv/peripheral_gen/twi.py

   1 from bsv.peripheral_gen.base import PBase
   2
   3
   4 class twi(PBase):
   5
   6     def slowimport(self):
   7         return "    import I2C_top           :: *;"
   8
   9     def slowifdecl(self):
  10         return "            interface I2C_out twi{0}_out;\n" + \
  11                "            method Bit#(1) twi{0}_isint;"
  12
  13     def num_axi_regs32(self):
  14         return 8
  15
  16     def mkslow_peripheral(self, size=0):
  17         return "        I2C_IFC twi{0} <- mkI2CController();"
  18
  19     def _mk_connection(self, name=None, count=0):
  20         return "twi{0}.slave_i2c_axi"
  21
  22     def pinname_out(self, pname):
  23         return {'sda': 'out.sda_out',
  24                 'scl': 'out.scl_out'}.get(pname, '')
  25
  26     def pinname_in(self, pname):
  27         return {'sda': 'out.sda_in',
  28                 'scl': 'out.scl_in'}.get(pname, '')
  29
  30     def pinname_outen(self, pname):
  31         return {'sda': 'out.sda_out_en',
  32                 'scl': 'out.scl_out_en'}.get(pname, '')
  33
  34     def num_irqs(self):
  35         return 3
  36
  37     def plic_object(self, pname, idx):
  38         return ["{0}.isint()",
  39                 "{0}.timerint()",
  40                 "{0}.isber()"
  41                 ][idx].format(pname)
  42
  43     def mk_ext_ifacedef(self, iname, inum):
  44         name = self.get_iname(inum)
  45         return "        method {0}_isint = {0}.isint;".format(name)
  46
  47     def slowifdeclmux(self):
  48         return "        method Bit#(1) {1}{0}_isint;"