Source code for labgrid.driver.quartushpsdriver

# pylint: disable=no-member
import subprocess
import re
import attr

from ..factory import target_factory
from ..step import step
from .common import Driver
from .exception import ExecutionError
from ..util.helper import processwrapper
from ..util.managedfile import ManagedFile


[docs]@target_factory.reg_driver @attr.s(eq=False) class QuartusHPSDriver(Driver): bindings = { "interface": {"AlteraUSBBlaster", "NetworkAlteraUSBBlaster"}, } image = attr.ib( default=None, validator=attr.validators.optional(attr.validators.instance_of(str)) )
[docs] def __attrs_post_init__(self): super().__attrs_post_init__() # FIXME make sure we always have an environment or config if self.target.env: self.tool = self.target.env.config.get_tool('quartus_hps') or 'quartus_hps' else: self.tool = 'quartus_hps'
def _get_cable_number(self): """Returns the JTAG cable numer for the USB path of the device""" # FIXME make sure we always have an environment or config if self.target.env: jtagconfig_tool = self.target.env.config.get_tool('jtagconfig') or 'jtagconfig' else: jtagconfig_tool = 'jtagconfig' cmd = self.interface.command_prefix + [jtagconfig_tool] jtagconfig_process = subprocess.Popen( cmd, stdout=subprocess.PIPE ) stdout, _ = jtagconfig_process.communicate() regex = re.compile(r".*(\d+)\) .* \[(.*)\]") for line in stdout.decode("utf-8").split("\n"): jtag_mapping = regex.match(line) if jtag_mapping: cable_number, usb_path = jtag_mapping.groups() if usb_path == self.interface.path: return int(cable_number) raise ExecutionError("Could not get cable number for USB path {}" .format(self.interface.path))
[docs] @Driver.check_active @step(args=['filename', 'address']) def flash(self, filename=None, address=0x0): if filename is None and self.image is not None: filename = self.target.env.config.get_image_path(self.image) mf = ManagedFile(filename, self.interface) mf.sync_to_resource() assert isinstance(address, int) cable_number = self._get_cable_number() cmd = self.interface.command_prefix + [self.tool] cmd += [ "--cable={}".format(cable_number), "--addr=0x{:X}".format(address), "--operation=P {}".format(mf.get_remote_path()), ] processwrapper.check_output(cmd)