src/bsv/peripheral_gen.py

   1 class PBase(object):
   2     pass
   3
   4     def axibase(self, name, ifacenum):
   5         name = name.upper()
   6         return "%(name)s%(ifacenum)dBase" % locals()
   7
   8     def axiend(self, name, ifacenum):
   9         name = name.upper()
  10         return "%(name)s%(ifacenum)dEnd" % locals()
  11
  12     def axi_reg_def(self, start, name, ifacenum):
  13         name=name.upper()
  14         offs=self.num_axi_regs32() * 4 * 16
  15         end=start + offs - 1
  16         bname=self.axibase(name, ifacenum)
  17         bend=self.axiend(name, ifacenum)
  18         comment = "%d 32-bit regs" % self.num_axi_regs32()
  19         return ("    `define%(bname)s 'h%(start)08X\n"
  20                 "    `define%(bend)s  'h%(end)08X // %(comment)s" % locals(),
  21                 offs)
  22
  23
  24 class uart(PBase):
  25     def importfn(self):
  26         return "          import Uart16550         :: *;"
  27
  28     def ifacedecl(self):
  29         return "            interface RS232_PHY_Ifc uart{0}_coe;\n" + \
  30                "            method Bit#(1) uart{0}_intr;"
  31
  32     def num_axi_regs32(self):
  33         return 8
  34
  35
  36 class rs232(PBase):
  37     def importfn(self):
  38         return "        import Uart_bs::*;\n" + \
  39                "        import RS232_modified::*;"
  40
  41     def ifacedecl(self):
  42         return "            interface RS232 uart{0}_coe;"
  43
  44     def num_axi_regs32(self):
  45         return 2
  46
  47
  48 class twi(PBase):
  49     def importfn(self):
  50         return "        import I2C_top           :: *;"
  51
  52     def ifacedecl(self):
  53         return "            interface I2C_out i2c{0}_out;\n" + \
  54                "            method Bit#(1) i2c{0}_isint;"
  55
  56     def num_axi_regs32(self):
  57         return 8
  58
  59
  60 class qspi(PBase):
  61     def importfn(self):
  62         return "        import qspi              :: *;"
  63
  64     def ifacedecl(self):
  65         return "            interface QSPI_out qspi{0}_out;\n" + \
  66                "            method Bit#(1) qspi{0}_isint;"
  67
  68     def num_axi_regs32(self):
  69         return 13
  70
  71
  72 class pwm(PBase):
  73     def importfn(self):
  74         return "        import pwm::*;"
  75
  76     def ifacedecl(self):
  77         return "        interface PWMIO pwm_o;"
  78
  79     def num_axi_regs32(self):
  80         return 4
  81
  82
  83 class gpio(PBase):
  84     def importfn(self):
  85         return "     import pinmux::*;\n" + \
  86                "     import mux::*;\n" + \
  87                "     import gpio::*;\n"
  88
  89     def ifacedecl(self):
  90         return "        interface GPIO_config#({1}) pad_config{0};"
  91
  92     def num_axi_regs32(self):
  93         return 2
  94
  95
  96 class PFactory(object):
  97     def getcls(self, name):
  98         return {'uart': uart,
  99                 'rs232': rs232,
 100                 'twi': twi,
 101                 'qspi': qspi,
 102                 'pwm': pwm,
 103                 'gpio': gpio
 104                 }.get(name, None)