From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 20 Jul 2018 11:41:28 +0000 (+0100)
Subject: add pin rules
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a7e9339b01b80317fcd67543b75e846988698fed;p=pinmux.git

add pin rules
---

diff --git a/src/bsv/bsv_lib/slow_peripherals_template.bsv b/src/bsv/bsv_lib/slow_peripherals_template.bsv
index 026449d..871d3ae 100644
--- a/src/bsv/bsv_lib/slow_peripherals_template.bsv
+++ b/src/bsv/bsv_lib/slow_peripherals_template.bsv
@@ -129,6 +129,7 @@ package slow_peripherals;
 
     /*========== pinmux connections ============*/
 {7}
+{8}
     rule connect_i2c0_scl;
       pinmux.peripheral_side.twi_scl_out(i2c0.out.scl_out);
       pinmux.peripheral_side.twi_scl_outen(pack(i2c0.out.scl_out_en));
diff --git a/src/bsv/peripheral_gen.py b/src/bsv/peripheral_gen.py
index 520a5d0..b2e36ac 100644
--- a/src/bsv/peripheral_gen.py
+++ b/src/bsv/peripheral_gen.py
@@ -42,6 +42,22 @@ class PBase(object):
             return tuple2(True,fromInteger(valueOf({2})));
         else""".format(bname, bend, name)
 
+    def mk_pincon(self, name, count):
+        ret = []
+        for p in self.peripheral.pinspecs:
+            typ = p['type']
+            pname = p['name']
+            ret.append("    rule con_%s%d_%s_%s" % (name, count, pname, typ))
+            sname = self.peripheral.pname(pname).format(count)
+            ps = "pinmux.peripheral_side.%s" % sname
+            if typ == 'out':
+                fname = self.pinname_out(pname)
+                n = "{0}{1}".format(name, self.mksuffix(name, count))
+                ret.append("        {0}_out({1}.{2});".format(ps, n, fname))
+            ret.append("        //%s" % str(p))
+            ret.append("    endrule")
+        return '\n'.join(ret)
+
     def mk_cellconn(self, *args):
         return ''
 
@@ -74,6 +90,15 @@ class PBase(object):
     def _mk_connection(self, name=None, count=0):
         return ''
 
+    def pinname_out(self, pname):
+        return ''
+
+    def pinname_in(self, pname):
+        return ''
+
+    def pinname_outen(self, pname):
+        return ''
+
 
 class uart(PBase):
 
@@ -95,6 +120,11 @@ class uart(PBase):
     def _mk_connection(self, name=None, count=0):
         return "uart{0}.slave_axi_uart"
 
+    def pinname_out(self, pname):
+        return {'tx': 'coe_rs232.sout'}.get(pname, '')
+
+    def pinname_in(self, pname):
+        return {'rx': 'coe_rs232.sin'}.get(pname, '')
 
 
 class rs232(PBase):
@@ -274,7 +304,7 @@ class PeripheralIface(object):
             self.slow = slow(ifacename)
             self.slow.peripheral = self
         for fname in ['slowimport', 'slowifdecl', 'mkslow_peripheral',
-                      'mk_connection', 'mk_cellconn']:
+                      'mk_connection', 'mk_cellconn', 'mk_pincon']:
             fn = CallFn(self, fname)
             setattr(self, fname, types.MethodType(fn, self))
 
@@ -388,6 +418,14 @@ class PeripheralInterfaces(object):
         ret = '\n'.join(list(filter(None, ret)))
         return pinmux_cellrule.format(ret)
 
+    def mk_pincon(self):
+        ret = []
+        for (name, count) in self.ifacecount:
+            for i in range(count):
+                txt = self.data[name].mk_pincon(name, i)
+                ret.append(txt)
+        return '\n'.join(list(filter(None, ret)))
+
 class PFactory(object):
     def getcls(self, name):
         for k, v in {'uart': uart,
diff --git a/src/bsv/pinmux_generator.py b/src/bsv/pinmux_generator.py
index 7f91db9..b50a0a0 100644
--- a/src/bsv/pinmux_generator.py
+++ b/src/bsv/pinmux_generator.py
@@ -107,9 +107,11 @@ def write_slow(slow, template, p, ifaces, iocells):
     mkslow = ifaces.mkslow_peripheral()
     mkcon = ifaces.mk_connection()
     mkcellcon = ifaces.mk_cellconn()
+    pincon = ifaces.mk_pincon()
     with open(slow, "w") as bsv_file:
         bsv_file.write(template.format(imports, ifdecl, regdef, slavedecl,
-                                       fnaddrmap, mkslow, mkcon, mkcellcon))
+                                       fnaddrmap, mkslow, mkcon, mkcellcon,
+                                       pincon))
 
 
 def write_bus(bus, p, ifaces):