gCRU.py

#!/usr/local/bin/python
#
#                               Copyright 2004
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#


__facility__ = "Online"
__abstract__ = "GLAST CRU functional block"
__author__  = "Selim Tuvi <stuvi@slac.stanford.edu> SLAC - GLAST LAT I&T/Online"
__date__     = ("$Date: 2005/03/15 19:42:43 $").split(' ')[1]
__version__ = "$Revision: 2.8 $"
__release__  = "$Name: R04-12-00 $"
__credits__ = "SLAC"

import LATTE.copyright_SLAC

import gDb
import gAttr

class GCRU(gDb.Gdb):
  """\brief CRU node.

  Has GCRU specific registers and dataless commands.

  Valid Registers:
  - \c configuration
  - \c command_enable
  - \c response_enable
  - \c cr_statistics
  - \c acd_startup_clock
  - \c test_io

  Dataless Commands:
  - \c cmd_nop
  - \c cmd_reset

  """
  __attrs = [
    # Registers
    gAttr.GattrRaw('configuration',        0, 4),
    gAttr.GattrRaw('command_enable',       1, 4),
    gAttr.GattrRaw('response_enable',      2, 4),
    gAttr.GattrRaw('cr_statistics',        3, 4),
    gAttr.GattrRaw('acd_startup_clock',    4, 4),
    gAttr.GattrRaw('test_io',              5, 4),
    # Dataless Commands
    gAttr.GattrDlc('cmd_nop',              0, 0),
    gAttr.GattrDlc('cmd_reset',            1, 0),
    ]

  def __init__(self, client, parent):
    """\brief Initialize valid registers as Gattrs.
    """
    flags = { 'EnableInternal1PPS' : 0 }
    gDb.Gdb.__init__(self, client, parent, 0, self.__attrs, None, flags)

  def read(self, reg):
    return self.cmdrsp('CRU_read', reg, '!I')

  def load(self, reg, value):
    return self.cmdrsp('CRU_load', reg, value)

  def send(self, cmd):
    return self.cmdrsp('CRU_cmd', cmd)

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