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# $Id: test_regs.tcl 516 2013-05-05 21:24:52Z mueller $

#

# Copyright 2011-2013 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>

#

# This program is free software; you may redistribute and/or modify it under

# the terms of the GNU General Public License as published by the Free

# Software Foundation, either version 2, or at your option any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY

# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

# for complete details.

#

#  Revision History:

# Date         Rev Version  Comment

# 2011-12-18   440   1.0.1  increase npoll in "CNTL.clr->0" test

# 2011-04-02   375   1.0    Initial version

#

package provide rbemon 1.0

package require rutiltpp

package require rutil

package require rlink

namespace eval rbemon {

  #

  # Basic tests with rbd_eyemon registers

  #

  proc test_regs {} {

    set esdval 0x00

    set esdmsk [regbld rlink::STAT {stat -1}]

    #

    set errcnt 0

    rlc errcnt -clear

    #

    rlc log "rbemon::test_regs - start"

    #

    #-------------------------------------------------------------------------

    rlc log "  test 1a: write/read cntl"

    # ensure that last value 0x0 -> go=0

    foreach val [list [regbld rbemon::CNTL ena01] [regbld rbemon::CNTL ena10] \

                      [regbld rbemon::CNTL go] 0x0 ] {

      rlc exec -estatdef $esdval $esdmsk \

        -wreg em.cntl $val \

        -rreg em.cntl -edata $val

    }

    #

    #-------------------------------------------------------------------------

    rlc log "  test 1b: write/read rdiv"

    foreach val [list [regbld rbemon::RDIV {rdiv -1}] 0x0 ] {

      rlc exec -estatdef $esdval $esdmsk \

        -wreg em.rdiv $val \

        -rreg em.rdiv -edata $val

    }

    #

    #-------------------------------------------------------------------------

    rlc log "  test 1c: write/read addr"

    set amax [regget rbemon::ADDR(addr) -1]

    foreach addr [list 0x1 $amax 0x0] {

      rlc exec -estatdef $esdval $esdmsk \

        -wreg em.addr $addr \

        -rreg em.addr -edata $addr

    }

    #

    #-------------------------------------------------------------------------

    rlc log "  test 2: verify addr increments on data reads"

    foreach addr [list 0x0 0x011 [expr {$amax - 1}]] {

      rlc exec -estatdef $esdval $esdmsk \

        -wreg em.addr $addr \

        -rreg em.data \

        -rreg em.addr -edata [expr {( $addr + 1 ) & $amax}] \

        -rreg em.data \

        -rreg em.addr -edata [expr {( $addr + 2 ) & $amax}]

    }

    #

    #-------------------------------------------------------------------------

    rlc log "  test 3: verify rberr on DATA write and DATE read if in go state"

    rlc exec \

      -wreg em.data 0x0000 -estat [regbld rlink::STAT rberr] $esdmsk \

      -wreg em.cntl [regbld rbemon::CNTL go] -estat $esdval $esdmsk \

      -rreg em.data  -estat [regbld rlink::STAT rberr] $esdmsk

    #

    #-------------------------------------------------------------------------

    rlc log "  test 4: verify that CNTL.clr returns to 0"

    set npoll 48

    set edat {}

    set emsk {}

    for {set i 0} {$i < $npoll} {incr i} { lappend edat 0x0000 }

    for {set i 1} {$i < $npoll} {incr i} { lappend emsk 0xffff }

    rlc exec -estatdef $esdval $esdmsk \

      -wreg em.cntl [regbld rbemon::CNTL clr] \

      -rblk em.cntl $npoll -edata $edat $emsk

    #

    incr errcnt [rlc errcnt -clear]

    return $errcnt

  }

}