src/bsv/peripheral_gen.py

   1 class PBase(object):
   2     pass
   3
   4     def axi_reg_def(self, start, name, ifacenum):
   5         name = name.upper()
   6         offs = self.num_axi_regs32()*4
   7         end = start + offs - 1
   8         return ("    `define%(name)s%(ifacenum)dBase 'h%(start)08x'\n" \
   9                 "    `define%(name)s%(ifacenum)dEnd  'h%(end)08x'\n" % locals(),
  10                 offs)
  11
  12
  13 class uart(PBase):
  14     def importfn(self):
  15         return "          import Uart16550         :: *;"
  16
  17     def ifacedecl(self):
  18         return "            interface RS232_PHY_Ifc uart{0}_coe;\n" \
  19                "            method Bit#(1) uart{0}_intr;"
  20
  21     def num_axi_regs32(self):
  22         return 8
  23
  24
  25 class rs232(PBase):
  26     def importfn(self):
  27         return "        import Uart_bs::*;\n" \
  28                "        import RS232_modified::*;"
  29
  30     def ifacedecl(self):
  31         return "            interface RS232 uart{0}_coe;"
  32
  33     def num_axi_regs32(self):
  34         return 2
  35
  36
  37 class twi(PBase):
  38     def importfn(self):
  39         return "        import I2C_top           :: *;"
  40
  41     def ifacedecl(self):
  42         return "            interface I2C_out i2c{0}_out;\n" \
  43                "            method Bit#(1) i2c{0}_isint;"
  44
  45     def num_axi_regs32(self):
  46         return 8
  47
  48
  49 class qspi(PBase):
  50     def importfn(self):
  51         return "        import qspi              :: *;"
  52
  53     def ifacedecl(self):
  54         return "            interface QSPI_out qspi{0}_out;\n" \
  55                "            method Bit#(1) qspi{0}_isint;"
  56
  57     def num_axi_regs32(self):
  58         return 13
  59
  60
  61 class pwm(PBase):
  62     def importfn(self):
  63         return "        import pwm::*;"
  64
  65     def ifacedecl(self):
  66         return "        interface PWMIO pwm_o;"
  67
  68     def num_axi_regs32(self):
  69         return 4
  70
  71
  72 class gpio(PBase):
  73     def importfn(self):
  74         return "     import pinmux::*;\n" \
  75                "     import mux::*;\n" \
  76                "     import gpio::*;\n"
  77
  78     def ifacedecl(self):
  79         return "        interface GPIO_config#({1}) pad_config{0};"
  80
  81     def num_axi_regs32(self):
  82         return 2
  83
  84
  85 class PFactory(object):
  86     def getcls(self, name):
  87         return {'uart': uart,
  88                 'rs232': rs232,
  89                 'twi': twi,
  90                 'qspi': qspi,
  91                 'pwm': pwm,
  92                 'gpio': gpio
  93                 }.get(name, None)