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 $filename [flash] bin"]]
- echo "Successfully ran production procedure"
-}
-
-proc board_test {} {
- echo "Production test not implemented"
-}
# Show flash in human readable form
# This is an example of a human readable form of a low level fn
-proc flash_banks {} {
- set i 0
+proc flash_banks {} {
+ set i 0
set result ""
- foreach {a} [openocd_flash_banks] {
+ foreach {a} [ocd_flash_banks] {
if {$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]
- }
+ 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 {} {
- openocd_throw exit
+ ocd_throw exit
}
#Print help text for a command. Word wrap
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} {
+ 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 [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]
+ if {$lastpos != -1} {
+ set next_a [expr $lastpos + $n + 1]
}
}
-
-
- puts [format "%-25s %s" $cmdname [string range $h $n [expr $next_a-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"
-#a bit of backwards compatibility
-proc openocd_throw {cmd} {
- set openocd_output ""
- eval $cmd
- return $openocd_output
-}
-
-#a bit of backwards compatibility
-proc openocd {cmd} {
- set openocd_output ""
- eval $cmd
- return $openocd_output
-}
-
# 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
# 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]"]
+ if {[catch {info body $cmd_name}]==0} {
+ # the command exists, try it...
+ return [eval "$cmd_name [lrange $args 2 end]"]
+ }
}
# This really is an unknown command.
- puts "Unknown command: $args"
+ 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 eventname]_[set target_num]" {} "script $scriptname"
-
+proc new_target_name { } {
+ return [target number [expr [target count] - 1 ]]
}
# Try flipping / and \ to find file if the filename does not
# match the precise spelling
proc find {filename} {
- if {[catch {openocd_find $filename} t]==0} {
+ if {[catch {ocd_find $filename} t]==0} {
return $t
- }
- if {[catch {openocd_find [string map {\ /} $filename} t]==0} {
+ }
+ if {[catch {ocd_find [string map {\ /} $filename} t]==0} {
return $t
- }
- if {[catch {openocd_find [string map {/ \\} $filename} t]==0} {
+ }
+ if {[catch {ocd_find [string map {/ \\} $filename} t]==0} {
return $t
- }
+ }
# make sure error message matches original input string
- return [openocd_find $filename]
+ return -code error "Can't find $filename"
}
add_help_text find "<file> - print full path to file according to OpenOCD search rules"
source [find $filename]
}
-#proc daemon_reset {} {
-# puts "Daemon reset is obsolete. Use -c init -c \"reset halt\" at end of openocd command line instead");
-#}
-
add_help_text script "<filename> - filename of OpenOCD script (tcl) to run"
-add_help_text target_script "<target#> <event=reset/pre_reset/post_halt/pre_resume/gdb_program_config> <script_file>"
+# Handle GDB 'R' packet. Can be overriden by configuration script,
+# but it's not something one would expect target scripts to do
+# normally
+proc ocd_gdb_restart {target_id} {
+ # Fix!!! we're resetting all targets here! Really we should reset only
+ # one target
+ reset halt
+}
+
+
+# This reset logic may be overridden by board/target/... scripts as needed
+# to provide a reset that, if possible, is close to a power-up reset.
+#
+# Exit requirements include: (a) JTAG must be working, (b) the scan
+# chain was validated with "jtag arp_init" (or equivalent), (c) nothing
+# stays in reset. No TAP-specific scans were performed. It's OK if
+# some targets haven't been reset yet; they may need TAP-specific scans.
+#
+# The "mode" values include: halt, init, run (from "reset" command);
+# startup (at OpenOCD server startup, when JTAG may not yet work); and
+# potentially more (for reset types like cold, warm, etc)
+proc init_reset { mode } {
+ jtag arp_init-reset
+}
+
+
+global in_process_reset
+set in_process_reset 0
+
+# Catch reset recursion
+proc ocd_process_reset { MODE } {
+ global in_process_reset
+ if {$in_process_reset} {
+ set in_process_reset 0
+ return -code error "'reset' can not be invoked recursively"
+ }
+
+ set in_process_reset 1
+ set success [expr [catch {ocd_process_reset_inner $MODE} result]==0]
+ set in_process_reset 0
+ if {$success} {
+ return $result
+ } else {
+ return -code error $result
+ }
+}
+
+proc ocd_process_reset_inner { MODE } {
+ set targets [target names]
+
+ # If this target must be halted...
+ set halt -1
+ if { 0 == [string compare $MODE halt] } {
+ set halt 1
+ }
+ if { 0 == [string compare $MODE init] } {
+ set halt 1;
+ }
+ if { 0 == [string compare $MODE run ] } {
+ set halt 0;
+ }
+ if { $halt < 0 } {
+ return -error "Invalid mode: $MODE, must be one of: halt, init, or run";
+ }
+
+ # Target event handlers *might* change which TAPs are enabled
+ # or disabled, so we fire all of them. But don't issue any
+ # target "arp_*" commands, which may issue JTAG transactions,
+ # unless we know the underlying TAP is active.
+ #
+ # NOTE: ARP == "Advanced Reset Process" ... "advanced" is
+ # relative to a previous restrictive scheme
+
+ foreach t $targets {
+ # New event script.
+ $t invoke-event reset-start
+ }
+
+ # Use TRST or TMS/TCK operations to reset all the tap controllers.
+ # TAP reset events get reported; they might enable some taps.
+ init_reset $MODE
+
+ # Examine all targets on enabled taps.
+ foreach t $targets {
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_examine
+ }
+ }
+
+ # Assert SRST, and report the pre/post events.
+ # Note: no target sees SRST before "pre" or after "post".
+ foreach t $targets {
+ $t invoke-event reset-assert-pre
+ }
+ foreach t $targets {
+ # C code needs to know if we expect to 'halt'
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_reset assert $halt
+ }
+ }
+ foreach t $targets {
+ $t invoke-event reset-assert-post
+ }
+
+ # Now de-assert SRST, and report the pre/post events.
+ # Note: no target sees !SRST before "pre" or after "post".
+ foreach t $targets {
+ $t invoke-event reset-deassert-pre
+ }
+ foreach t $targets {
+ # Again, de-assert code needs to know if we 'halt'
+ if {[jtag tapisenabled [$t cget -chain-position]]} {
+ $t arp_reset deassert $halt
+ }
+ }
+ foreach t $targets {
+ $t invoke-event reset-deassert-post
+ }
+
+ # Pass 1 - Now wait for any halt (requested as part of reset
+ # assert/deassert) to happen. Ideally it takes effect without
+ # first executing any instructions.
+ if { $halt } {
+ foreach t $targets {
+ if {[jtag tapisenabled [$t cget -chain-position]] == 0} {
+ continue
+ }
+
+ # Wait upto 1 second for target to halt. Why 1sec? Cause
+ # the JTAG tap reset signal might be hooked to a slow
+ # resistor/capacitor circuit - and it might take a while
+ # to charge
+
+ # Catch, but ignore any errors.
+ catch { $t arp_waitstate halted 1000 }
+
+ # Did we succeed?
+ set s [$t curstate]
+
+ if { 0 != [string compare $s "halted" ] } {
+ return -error [format "TARGET: %s - Not halted" $t]
+ }
+ }
+ }
+
+ #Pass 2 - if needed "init"
+ if { 0 == [string compare init $MODE] } {
+ foreach t $targets {
+ if {[jtag tapisenabled [$t cget -chain-position]] == 0} {
+ continue
+ }
+
+ set err [catch "$t arp_waitstate halted 5000"]
+ # Did it halt?
+ if { $err == 0 } {
+ $t invoke-event reset-init
+ }
+ }
+ }
+
+ foreach t $targets {
+ $t invoke-event reset-end
+ }
+}
+
+#########
+
+# REVISIT power_restore, power_dropout, srst_deasserted, srst_asserted
+# are currently neither documented nor supported except on ZY1000.
+
+proc power_restore {} {
+ puts "Sensed power restore."
+ reset init
+}
+
+add_help_text power_restore "Overridable procedure run when power restore is detected. Runs 'reset init' by default."
+
+proc power_dropout {} {
+ puts "Sensed power dropout."
+}
+
+proc srst_deasserted {} {
+ puts "Sensed nSRST deasserted."
+ reset init
+}
+add_help_text srst_deasserted "Overridable procedure run when srst deassert is detected. Runs 'reset init' by default."
+
+proc srst_asserted {} {
+ puts "Sensed nSRST asserted."
+}
+
+#########
+
+# catch any exceptions, capture output and return output
+proc capture_catch {a} {
+ catch {
+ capture {uplevel $a}
+ } result
+ return $result
+}
+
+
+# Executed during "init". Can be overridden
+# by board/target/... scripts
+proc jtag_init {} {
+ if {[catch {jtag arp_init} err]!=0} {
+ # try resetting additionally
+ init_reset startup
+ }
+}
Code Review / openocd.git / blobdiff