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#
# Defines basic Tcl procs that must be there for
# OpenOCD to work.
#
# Embedded into OpenOCD executable
#
# Help text list. A list of command + help text pairs.
#
# Commands can be more than one word and they are stored
# as "flash banks" "help text x x x"
proc add_help_text {cmd cmd_help} {
global ocd_helptext
lappend ocd_helptext [list $cmd $cmd_help]
}
proc get_help_text {} {
global ocd_helptext
return $ocd_helptext
}
# Production command
# FIX!!! need to figure out how to feed back relevant output
# from e.g. "flash banks" command...
proc board_produce {filename serialnumber} {
openocd "reset init"
openocd "flash write_image erase $filename [flash] bin"]]
openocd "verify_image $filename [flash] bin"]]
echo "Successfully ran production procedure"
}
proc board_test {} {
echo "Production test not implemented"
}
# Show flash in human readable form
# This is an example of a human readable form of a low level fn
proc flash_banks {} {
set i 0
set result ""
foreach {a} [ocd_flash_banks] {
if {$i > 0} {
set result "$result\n"
}
set result [format "$result#%d: %s at 0x%08x, size 0x%08x, buswidth %d, chipwidth %d" $i $a(name) $a(base) $a(size) $a(bus_width) $a(chip_width)]
set i [expr $i+1]
}
return $result
}
# We need to explicitly redirect this to the OpenOCD command
# as Tcl defines the exit proc
proc exit {} {
ocd_throw exit
}
#Print help text for a command. Word wrap
#help text that is too wide inside column.
proc help {args} {
global ocd_helptext
set cmd $args
foreach a [lsort $ocd_helptext] {
if {[string length $cmd]==0||[string first $cmd $a]!=-1||[string first $cmd [lindex $a 1]]!=-1} {
set w 50
set cmdname [lindex $a 0]
set h [lindex $a 1]
set n 0
while 1 {
if {$n > [string length $h]} {break}
set next_a [expr $n+$w]
if {[string length $h]>$n+$w} {
set xxxx [string range $h $n [expr $n+$w]]
for {set lastpos [expr [string length $xxxx]-1]} {$lastpos>=0&&[string compare [string range $xxxx $lastpos $lastpos] " "]!=0} {set lastpos [expr $lastpos-1]} {
}
#set next_a -1
if {$lastpos!=-1} {
set next_a [expr $lastpos+$n+1]
}
}
puts [format "%-25s %s" $cmdname [string range $h $n [expr $next_a-1]] ]
set cmdname ""
set n [expr $next_a]
}
}
}
}
add_help_text help "Tcl implementation of help command"
# If a fn is unknown to Tcl, we try to execute it as an OpenOCD command
#
# We also support two level commands. "flash banks" is translated to
# flash_banks
proc unknown {args} {
# do the name mangling from "flash banks" to "flash_banks"
if {[llength $args]>=2} {
set cmd_name "[lindex $args 0]_[lindex $args 1]"
# Fix?? add a check here if this is a command?
# we'll strip away args until we fail anyway...
return [eval "$cmd_name [lrange $args 2 end]"]
}
# This really is an unknown command.
return -code error "Unknown command: $args"
}
proc target_script {target_num eventname scriptname} {
if {[string compare $eventname reset]==0} {
set eventname post_reset
}
# This is the script we invoke
proc "target_[set target_num]_[set eventname]" {} "script $scriptname"
}
add_help_text target_script "<target#> <event=reset/pre_reset/post_halt/pre_resume/gdb_program_config> <script_file>"
# Try flipping / and \ to find file if the filename does not
# match the precise spelling
proc find {filename} {
if {[catch {ocd_find $filename} t]==0} {
return $t
}
if {[catch {ocd_find [string map {\ /} $filename} t]==0} {
return $t
}
if {[catch {ocd_find [string map {/ \\} $filename} t]==0} {
return $t
}
# make sure error message matches original input string
return -code error "Can't find $filename"
}
add_help_text find "<file> - print full path to file according to OpenOCD search rules"
# Run script
proc script {filename} {
source [find $filename]
}
#proc daemon_reset {} {
# puts "Daemon reset is obsolete. Use -c init -c \"reset halt\" at end of openocd command line instead");
#}
add_help_text script "<filename> - filename of OpenOCD script (tcl) to run"
# Handle GDB 'R' packet. Can be overriden by configuration script,
# but it's not something one would expect target scripts to do
# normally
proc ocd_gdb_restart {target_num} {
# Fix!!! we're resetting all targets here! Really we should reset only
# one target
reset halt
}
# If RCLK is not supported, use fallback_speed_khz
proc jtag_rclk {fallback_speed_khz} {
if {[catch {jtag_khz 0}]!=0} {
jtag_khz $fallback_speed_khz
}
}
add_help_text jtag_rclk "fallback_speed_khz - set JTAG speed to RCLK or use fallback speed"
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