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cxx_header_generator.py
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cxx_header_generator.py
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import os
import pal.gadget
from pal.generator.abstract_generator import AbstractGenerator
from pal.logger import logger
from pal.filter import filters
from pal.transform import transforms
from pal.exception import PalGeneratorException
from pal.writer.writer_factory import make_writer
class CxxHeaderGenerator(AbstractGenerator):
def generate_registers(self, regs, outpath):
try:
regs = filters["no_access_mechanism"].filter_exclusive(regs)
regs = filters["irregular_size"].filter_exclusive(regs)
regs = transforms["remove_reserved_0"].transform(regs)
regs = transforms["remove_reserved_1"].transform(regs)
regs = transforms["remove_preserved"].transform(regs)
regs = transforms["special_to_underscore"].transform(regs)
regs = transforms["insert_valid_first_character"].transform(regs)
logger.info("Generating C++ header file registers to: " + str(outpath))
peripherals = {}
for reg in regs:
include_guard = "PAL_" + reg.name.upper() + "_H"
self.gadgets["pal.include_guard"].name = include_guard
outfile_path = os.path.join(outpath, reg.name.lower() + ".h")
outfile_path = os.path.abspath(outfile_path)
namespace_name = "pal"
if reg.component:
namespace_name = namespace_name + "::" + reg.component.lower()
self.gadgets["pal.cxx.namespace"].name = namespace_name
with open(outfile_path, "w") as outfile:
self._generate_register(outfile, reg)
if reg.component:
if reg.component not in peripherals:
peripherals[reg.component] = [reg]
else:
peripherals[reg.component].append(reg)
for name, regs in peripherals.items():
include_guard = "PAL_" + regs[0].component.upper() + "_H"
self.gadgets["pal.include_guard"].name = include_guard
self.gadgets["pal.cxx.namespace"].name = "pal::" + regs[0].component.lower()
outfile_path = os.path.join(outpath, regs[0].component.lower() + ".h")
outfile_path = os.path.abspath(outfile_path)
with open(outfile_path, "w") as outfile:
self.__generate_peripheral(outfile, regs)
self.gadgets["pal.cxx.namespace"].indent_contents = False
except Exception as e:
msg = "{g} failed to generate output {out}: {exception}".format(
g=str(type(self).__name__),
out=outpath,
exception=e)
raise PalGeneratorException(msg)
def generate_instructions(self, instructions, outpath):
try:
logger.info("Generating C++ header file instructions to: " + str(outpath))
for inst in instructions:
include_guard = "PAL_EXECUTE_" + inst.name.upper() + "_H"
self.gadgets["pal.include_guard"].name = include_guard
outfile_path = os.path.join(outpath, inst.name.lower() + ".h")
outfile_path = os.path.abspath(outfile_path)
with open(outfile_path, "w") as outfile:
self.gadgets["pal.cxx.namespace"].name = "pal"
self._generate_instruction(outfile, inst)
except Exception as e:
msg = "{g} failed to generate output {out}: {exception}".format(
g=str(type(self).__name__),
out=outpath,
exception=e)
raise PalGeneratorException(msg)
# -------------------------------------------------------------------------
# private
# -------------------------------------------------------------------------
@pal.gadget.license
@pal.gadget.include_guard
def _generate_register(self, outfile, reg):
self.writer.declare_register_dependencies(outfile, reg, self.config)
if self.config.enable_printers == True:
self.writer.declare_print_mechanism_dependencies(outfile, reg)
for am_key, am_list in reg.access_mechanisms.items():
for am in am_list:
self.writer.declare_access_mechanism_dependencies(outfile, reg, am)
self.writer.write_newline(outfile)
self._generate_register_namespace(outfile, reg)
@pal.gadget.cxx.namespace
def _generate_register_namespace(self, outfile, reg):
self._generate_register_comment(outfile, reg)
self.gadgets["pal.cxx.namespace"].name = reg.name.lower()
self.gadgets["pal.cxx.namespace"].indent_contents = True
self._generate_register_accessors(outfile, reg)
@pal.gadget.license
@pal.gadget.include_guard
def _generate_instruction(self, outfile, inst):
self.writer.declare_instruction_dependencies(outfile, inst, self.config)
self.writer.write_newline(outfile)
self._generate_instruction_namespace(outfile, inst)
@pal.gadget.cxx.namespace
def _generate_instruction_namespace(self, outfile, inst):
self.writer.declare_instruction_accessor(outfile, inst)
self.writer.write_newline(outfile)
def _generate_register_comment(self, outfile, reg):
comment = "{name} ({long_name}){separator}{purpose}".format(
name=str(reg.name),
long_name=str(reg.long_name),
separator=" - " if reg.purpose else "",
purpose=str(reg.purpose)
)
self.writer.declare_comment(outfile, comment, 75)
@pal.gadget.cxx.namespace
def _generate_register_accessors(self, outfile, reg):
self.writer.declare_register_accessors(outfile, reg)
fieldsets = reg.fieldsets
for idx, fieldset in enumerate(fieldsets):
if len(fieldsets) > 1:
self.writer.declare_comment(outfile, fieldset.condition, 79)
if fieldset.name:
self.gadgets["pal.cxx.namespace"].name = str(fieldset.name)
else:
self.gadgets["pal.cxx.namespace"].name = "fieldset_" + str(idx + 1)
self._generate_fieldset_in_namespace(outfile, reg, fieldsets[0])
else:
self._generate_fieldset(outfile, reg, fieldsets[0])
@pal.gadget.cxx.namespace
def _generate_fieldset_in_namespace(self, outfile, reg, fieldset):
self._generate_fieldset(outfile, reg, fieldset)
def _generate_fieldset(self, outfile, reg, fieldset):
for idx, field in enumerate(fieldset.fields):
if field.description:
self.writer.declare_comment(outfile, field.description, 71)
self.gadgets["pal.cxx.namespace"].name = field.name.lower()
self._generate_register_field(outfile, reg, field)
self.writer.write_newline(outfile)
if reg.is_readable() and self.config.enable_printers == True:
self.writer.declare_fieldset_printers(outfile, reg, fieldset)
@pal.gadget.cxx.namespace
def _generate_register_field(self, outfile, reg, field):
self.writer.declare_field_accessors(outfile, reg, field)
if self.config.enable_printers == True:
self.writer.declare_field_printers(outfile, reg, field)
@pal.gadget.license
@pal.gadget.include_guard
def __generate_peripheral(self, outfile, regs):
self.writer.declare_peripheral_dependencies(outfile, regs, self.config)
self.__generate_peripheral_namespace(outfile, regs)
@pal.gadget.cxx.namespace
def __generate_peripheral_namespace(self, outfile, regs):
self.writer.declare_peripheral_views(outfile, regs)