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# Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, 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 more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:
# DejaGnu@cygnus.com

# This file was originally written by Rob Savoye. (rob@cygnus.com)
# and modified by Bob Manson (manson@cygnus.com)

# When using the simulator (-n iss) and running nice'd, things can naturally
# take a little longer, so increase the timeout.

#
# udi_load -- load the program and execute it
#
# See default.exp for explanation of arguments and results.
#

proc udi_load { dest prog args } {
    set shell_prompt [board_info $dest shell_prompt];
    set output "";

    if ![file exists $prog] then {
        perror "$prog does not exist."
        verbose -log "$prog does not exist." 3
        return [list "untested" ""];
    }

    # Load the program.
    if ![board_info $dest exists fileid] then {
        remote_open $dest;
        if ![board_info $dest exists fileid] then {
            verbose -log "$prog not executed, couldn't connect to $dest." 3
            return "untested"
        }
    }

    if { [remote_ld $dest $prog] == "" } {
        verbose -log "$prog not executed, load failed." 3
        return [list "unresolved" ""];
    }

    # Execute it.
    set result -1
    set output "";
    set noappend 0;

    verbose "Executing $prog." 2
    remote_send $dest "g\n"
    # FIXME: The value 300 below should be a parameter.
    remote_expect $dest 300 {
        -re "(.*)Process exited with 0x0\[^\r\n\]*\[\r\n\]" {
            append output $expect_out(1,string);
            verbose "$prog executed successfully" 2
            set noappend 1;
            set result 0;
            exp_continue;
        }
        -re "(.*)Halt instruction encountered" {
            append output $expect_out(1,string);
            verbose "$prog got a HALT instruction" 2
            set result 1;
            set noappend 1;
            exp_continue;
        }
        -re "(^|\[\r\n\])$shell_prompt" {
            if { $result == -1 } {
                exp_continue;
            }
        }
        -re "(^|\[\r\n\]+)g\[\r\n\]+" {
            exp_continue;
        }
        -re "\[\r\n\]+" {
            if { ! $noappend } { 
                append output $expect_out(buffer);
                if { [string length $output] < 512000 } {
                    exp_continue;
                } else {
                    set result 1;
                }
            } else {
                exp_continue;
            }
        }
        timeout {
            warning "$prog timed out."
        }
    }

    # See what happened.
    switch -- $result {
        0 {
            set status [check_for_board_status output];
            if { $status < 0 } {
                blammo
            }
            if { $status > 0 } {
                set result "fail";
            } else {
                set result "pass"
            }
        }
        1 - -1 {
            warning "Resetting $dest."
            remote_send $dest "r\n"
            remote_expect $dest 5 {
                -re "r.*$shell_prompt.*" { 
                    verbose "Target reset." 2
                }
                timeout {
                    # Get nastier.  We want to leave the system in a state
                    # ready to run the next testcase.
                    remote_send $dest "q\n"
                    remote_close $dest;
                    set udi_shell_id [remote_open $dest]
                    if { $udi_shell_id < 0 } {
                        perror "Couldn't reset $dest."
                    }
                }
            }
            if { $result == 1 } {
                set result "fail"
            } else {
                set result "unresolved"
            }
        }
        default {
            set result "unresolved"
        }
    }
    return [list $result $output];
}

#
# udi_exit -- shutdown the connection (or simulator)
#

proc udi_exit {} {
    remote_close target;
}

set_board_info protocol "udi";
set_board_info connect "mondfe";
set_board_info shell_prompt "mondfe>";