1 # Defines basic Tcl procs for OpenOCD target module
3 proc new_target_name { } {
4 return [target number [expr {[target count] - 1}]]
7 global in_process_reset
10 # Catch reset recursion
11 proc ocd_process_reset { MODE } {
12 global in_process_reset
13 if {$in_process_reset} {
14 set in_process_reset 0
15 return -code error "'reset' can not be invoked recursively"
18 set in_process_reset 1
19 set success [expr {[catch {ocd_process_reset_inner $MODE} result] == 0}]
20 set in_process_reset 0
25 return -code error $result
29 proc ocd_process_reset_inner { MODE } {
30 set targets [target names]
32 # If this target must be halted...
42 return -code error "Invalid mode: $MODE, must be one of: halt, init, or run";
46 # Target event handlers *might* change which TAPs are enabled
47 # or disabled, so we fire all of them. But don't issue any
48 # target "arp_*" commands, which may issue JTAG transactions,
49 # unless we know the underlying TAP is active.
51 # NOTE: ARP == "Advanced Reset Process" ... "advanced" is
52 # relative to a previous restrictive scheme
56 $t invoke-event reset-start
59 # Use TRST or TMS/TCK operations to reset all the tap controllers.
60 # TAP reset events get reported; they might enable some taps.
63 # Examine all targets on enabled taps.
65 if {![using_jtag] || [jtag tapisenabled [$t cget -chain-position]]} {
66 $t invoke-event examine-start
67 set err [catch "$t arp_examine allow-defer"]
69 $t invoke-event examine-fail
71 $t invoke-event examine-end
76 # Assert SRST, and report the pre/post events.
77 # Note: no target sees SRST before "pre" or after "post".
79 $t invoke-event reset-assert-pre
82 # C code needs to know if we expect to 'halt'
83 if {![using_jtag] || [jtag tapisenabled [$t cget -chain-position]]} {
84 $t arp_reset assert $halt
88 $t invoke-event reset-assert-post
91 # Now de-assert SRST, and report the pre/post events.
92 # Note: no target sees !SRST before "pre" or after "post".
94 $t invoke-event reset-deassert-pre
97 # Again, de-assert code needs to know if we 'halt'
98 if {![using_jtag] || [jtag tapisenabled [$t cget -chain-position]]} {
99 $t arp_reset deassert $halt
103 $t invoke-event reset-deassert-post
106 # Pass 1 - Now wait for any halt (requested as part of reset
107 # assert/deassert) to happen. Ideally it takes effect without
108 # first executing any instructions.
111 if {[using_jtag] && ![jtag tapisenabled [$t cget -chain-position]]} {
115 # don't wait for targets where examination is deferred
116 # they can not be halted anyway at this point
117 if { ![$t was_examined] && [$t examine_deferred] } {
121 # Wait up to 1 second for target to halt. Why 1sec? Cause
122 # the JTAG tap reset signal might be hooked to a slow
123 # resistor/capacitor circuit - and it might take a while
126 # Catch, but ignore any errors.
127 catch { $t arp_waitstate halted 1000 }
132 if { $s != "halted" } {
133 return -code error [format "TARGET: %s - Not halted" $t]
138 #Pass 2 - if needed "init"
139 if { $MODE == "init" } {
141 if {[using_jtag] && ![jtag tapisenabled [$t cget -chain-position]]} {
145 # don't wait for targets where examination is deferred
146 # they can not be halted anyway at this point
147 if { ![$t was_examined] && [$t examine_deferred] } {
151 set err [catch "$t arp_waitstate halted 5000"]
154 $t invoke-event reset-init
160 $t invoke-event reset-end
165 set _TRANSPORT [ transport select ]
166 expr { [ string first "jtag" $_TRANSPORT ] != -1 }
170 set _TRANSPORT [ transport select ]
171 expr { [ string first "swd" $_TRANSPORT ] != -1 }
175 set _TRANSPORT [ transport select ]
176 expr { [ string first "hla" $_TRANSPORT ] != -1 }
181 # Target/chain configuration scripts can either execute commands directly
182 # or define a procedure which is executed once all configuration
183 # scripts have completed.
185 # By default(classic) the config scripts will set up the target configuration
186 proc init_targets {} {
189 proc set_default_target_event {t e s} {
190 if {[$t cget -event $e] == ""} {
191 $t configure -event $e $s
195 proc init_target_events {} {
196 set targets [target names]
199 set_default_target_event $t gdb-flash-erase-start "reset init"
200 set_default_target_event $t gdb-flash-write-end "reset halt"
201 set_default_target_event $t gdb-attach "halt 1000"
205 # Additionally board config scripts can define a procedure init_board that will be executed after init and init_targets
209 # smp_on/smp_off were already DEPRECATED in v0.11.0 through http://openocd.zylin.com/4615
210 lappend _telnet_autocomplete_skip "aarch64 smp_on"
211 proc "aarch64 smp_on" {args} {
212 echo "DEPRECATED! use 'aarch64 smp on' not 'aarch64 smp_on'"
213 eval aarch64 smp on $args
216 lappend _telnet_autocomplete_skip "aarch64 smp_off"
217 proc "aarch64 smp_off" {args} {
218 echo "DEPRECATED! use 'aarch64 smp off' not 'aarch64 smp_off'"
219 eval aarch64 smp off $args
222 lappend _telnet_autocomplete_skip "cortex_a smp_on"
223 proc "cortex_a smp_on" {args} {
224 echo "DEPRECATED! use 'cortex_a smp on' not 'cortex_a smp_on'"
225 eval cortex_a smp on $args
228 lappend _telnet_autocomplete_skip "cortex_a smp_off"
229 proc "cortex_a smp_off" {args} {
230 echo "DEPRECATED! use 'cortex_a smp off' not 'cortex_a smp_off'"
231 eval cortex_a smp off $args
234 lappend _telnet_autocomplete_skip "mips_m4k smp_on"
235 proc "mips_m4k smp_on" {args} {
236 echo "DEPRECATED! use 'mips_m4k smp on' not 'mips_m4k smp_on'"
237 eval mips_m4k smp on $args
240 lappend _telnet_autocomplete_skip "mips_m4k smp_off"
241 proc "mips_m4k smp_off" {args} {
242 echo "DEPRECATED! use 'mips_m4k smp off' not 'mips_m4k smp_off'"
243 eval mips_m4k smp off $args