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Duane Ellis: target_process_reset is now implemented in tcl. This allows better control from target configuration scripts. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@984 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-09-12 06:56:00 +00:00
parent 2ccb9ed44c
commit 0ae7f962f8
3 changed files with 243 additions and 16 deletions
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87
src/helper/startup.tcl
View File

@ -193,3 +193,90 @@ proc jtag_rclk {fallback_speed_khz} {
}
add_help_text jtag_rclk "fallback_speed_khz - set JTAG speed to RCLK or use fallback speed"
proc ocd_process_reset { MODE } {
# 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";
}
foreach t [ target names ] {
# For compatiblity with 'old scripts'
$t invoke-event old-pre_reset
# New event script.
$t invoke-event reset-start
}
# Init the tap controller.
jtag arp_init-reset
# Examine all targets.
foreach t [ target names ] {
$t arp_examine
}
# Let the C code know we are asserting reset.
foreach t [ target names ] {
$t invoke-event reset-assert-pre
# C code needs to know if we expect to 'halt'
$t arp_reset assert $halt
$t invoke-event reset-assert-post
}
# Now de-assert reset.
foreach t [ target names ] {
$t invoke-event reset-deassert-pre
# Again, de-assert code needs to know..
$t arp_reset deassert $halt
$t invoke-event reset-deassert-post
}
# Pass 1 - Now try to halt.
if { $halt } {
foreach t [target names] {
# 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 $MODE] } {
foreach t [target names] {
set err [catch "$t arp_waitstate halted 5000"]
# Did it halt?
if { $err == 0 } {
$t invoke-event old-post_reset
}
}
}
foreach t [ target names ] {
$t invoke-event reset-end
}
}

74
src/jtag/jtag.c
View File

@ -252,7 +252,7 @@ void jtag_add_runtest(int num_cycles, enum tap_state endstate);
void jtag_add_end_state(enum tap_state endstate);
void jtag_add_sleep(u32 us);
int jtag_execute_queue(void);
int jtag_cancel_queue(void);
/* jtag commands */
int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
@ -811,7 +811,7 @@ int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *f
return ERROR_OK;
}
void jtag_add_tlr()
void jtag_add_tlr(void)
{
jtag_prelude(TAP_TLR);
@ -1491,8 +1491,69 @@ int jtag_validate_chain(void)
return ERROR_OK;
}
static int
jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
{
Jim_GetOptInfo goi;
int e;
Jim_Nvp *n;
struct command_context_s *context;
enum {
JTAG_CMD_INTERFACE,
JTAG_CMD_INIT_RESET,
};
const Jim_Nvp jtag_cmds[] = {
{ .name = "interface" , .value = JTAG_CMD_INTERFACE },
{ .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
{ .name = NULL, .value = -1 },
};
context = Jim_GetAssocData(interp, "context");
// go past the command
Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
if( e != JIM_OK ){
Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
return e;
}
Jim_SetEmptyResult( goi.interp );
switch( n->value ){
case JTAG_CMD_INTERFACE:
// return the name of the interface
// TCL code might need to know the exact type...
// FUTURE: we allow this as a means to "set" the interface.
if( goi.argc != 0 ){
Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
return JIM_ERR;
}
Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
return JIM_OK;
case JTAG_CMD_INIT_RESET:
if( goi.argc != 0 ){
Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
return JIM_ERR;
}
e = jtag_init_reset(context);
if( e != ERROR_OK ){
Jim_SetResult_sprintf( goi.interp, "error: %d", e);
return JIM_ERR;
}
return JIM_OK;
}
return JIM_ERR;
}
int jtag_register_commands(struct command_context_s *cmd_ctx)
{
register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
register_command(cmd_ctx, NULL, "interface", handle_interface_command,
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
@ -2163,3 +2224,12 @@ int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd
return ERROR_OK;
}
/*
* Local Variables: ***
* c-basic-offset: 4 ***
* tab-width: 4 ***
* End: ***
*/

98
src/target/target.c
View File

@ -53,6 +53,8 @@
#include <fileio.h>
#include <image.h>
static int USE_OLD_RESET = 0; // temp
int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
@ -64,6 +66,7 @@ int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args
int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_NEWreset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
@ -414,8 +417,24 @@ int target_resume(struct target_s *target, int current, u32 address, int handle_
return retval;
}
static int NEW_target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
{
char buf[100];
Jim_Nvp *n;
n = Jim_Nvp_value2name_simple( nvp_reset_modes, reset_mode );
if( n->name == NULL ){
LOG_ERROR("invalid reset mode");
return ERROR_FAIL;
}
sprintf( buf, "ocd_process_reset %s", n->name );
Jim_Eval( interp, buf );
return ERROR_OK;
}
// Next patch - this turns into TCL...
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
static int OLD_target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
{
int retval = ERROR_OK;
target_t *target;
@ -510,6 +529,16 @@ int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mo
return retval;
}
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
{
if( USE_OLD_RESET ){
return OLD_target_process_reset( cmd_ctx, reset_mode );
} else {
return NEW_target_process_reset( cmd_ctx, reset_mode );
}
}
static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
{
*physical = virtual;
@ -1356,7 +1385,8 @@ int target_register_user_commands(struct command_context_s *cmd_ctx)
register_command(cmd_ctx, NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
register_command(cmd_ctx, NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
register_command(cmd_ctx, NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
register_command(cmd_ctx, NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init] - default is run");
register_command(cmd_ctx, NULL, "NEWreset", handle_NEWreset_command, COMMAND_EXEC, "reset target [run|halt|init] - default is run");
register_command(cmd_ctx, NULL, "reset", handle_reset_command, COMMAND_EXEC, "OLDreset target [run|halt|init] - default is run");
register_command(cmd_ctx, NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
register_command(cmd_ctx, NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
@ -1750,6 +1780,25 @@ int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **ar
return target_process_reset(cmd_ctx, reset_mode);
}
int handle_NEWreset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int x;
char *cp;
if (argc >= 1){
x = strtol( args[0], &cp, 0 );
if( *cp != 0 ){
command_print( cmd_ctx, "Not numeric: %s\n", args[0] );
return ERROR_COMMAND_SYNTAX_ERROR;
}
USE_OLD_RESET = !!x;
}
command_print( cmd_ctx, "reset method: %d (%s)\n",
USE_OLD_RESET,
USE_OLD_RESET ? "old-method" : "new-method" );
return ERROR_OK;
}
int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval;
@ -3000,7 +3049,6 @@ target_handle_event( target_t *target, enum target_event e )
enum target_cfg_param {
TCFG_TYPE,
TCFG_EVENT,
TCFG_RESET,
TCFG_WORK_AREA_VIRT,
TCFG_WORK_AREA_PHYS,
TCFG_WORK_AREA_SIZE,
@ -3014,7 +3062,6 @@ enum target_cfg_param {
static Jim_Nvp nvp_config_opts[] = {
{ .name = "-type", .value = TCFG_TYPE },
{ .name = "-event", .value = TCFG_EVENT },
{ .name = "-reset", .value = TCFG_RESET },
{ .name = "-work-area-virt", .value = TCFG_WORK_AREA_VIRT },
{ .name = "-work-area-phys", .value = TCFG_WORK_AREA_PHYS },
{ .name = "-work-area-size", .value = TCFG_WORK_AREA_SIZE },
@ -3039,7 +3086,7 @@ target_configure( Jim_GetOptInfo *goi,
/* parse config or cget options ... */
while( goi->argc ){
while( goi->argc > 0 ){
Jim_SetEmptyResult( goi->interp );
//Jim_GetOpt_Debug( goi );
@ -3284,8 +3331,8 @@ target_configure( Jim_GetOptInfo *goi,
/* loop for more e*/
break;
}
}
/* done - we return */
} /* while( goi->argc ) */
/* done - we return */
return JIM_OK;
}
@ -3321,6 +3368,7 @@ tcl_target_func( Jim_Interp *interp,
TS_CMD_WAITSTATE,
TS_CMD_EVENTLIST,
TS_CMD_CURSTATE,
TS_CMD_INVOKE_EVENT,
};
static const Jim_Nvp target_options[] = {
@ -3342,6 +3390,7 @@ tcl_target_func( Jim_Interp *interp,
{ .name = "arp_reset", .value = TS_CMD_RESET },
{ .name = "arp_halt", .value = TS_CMD_HALT },
{ .name = "arp_waitstate", .value = TS_CMD_WAITSTATE },
{ .name = "invoke-event", .value = TS_CMD_INVOKE_EVENT },
{ .name = NULL, .value = -1 },
};
@ -3554,7 +3603,7 @@ tcl_target_func( Jim_Interp *interp,
break;
case TS_CMD_EXAMINE:
if( goi.argc ){
Jim_WrongNumArgs( goi.interp, 0, argv, "[no parameters]");
Jim_WrongNumArgs( goi.interp, 2, argv, "[no parameters]");
return JIM_ERR;
}
e = target->type->examine( target );
@ -3565,7 +3614,7 @@ tcl_target_func( Jim_Interp *interp,
return JIM_OK;
case TS_CMD_POLL:
if( goi.argc ){
Jim_WrongNumArgs( goi.interp, 0, argv, "[no parameters]");
Jim_WrongNumArgs( goi.interp, 2, argv, "[no parameters]");
return JIM_ERR;
}
if( !(target->type->examined) ){
@ -3581,8 +3630,8 @@ tcl_target_func( Jim_Interp *interp,
}
break;
case TS_CMD_RESET:
if( goi.argc != 1 ){
Jim_WrongNumArgs( interp, 1, argv, "reset t|f|assert|deassert");
if( goi.argc != 2 ){
Jim_WrongNumArgs( interp, 2, argv, "t|f|assert|deassert BOOL");
return JIM_ERR;
}
e = Jim_GetOpt_Nvp( &goi, nvp_assert, &n );
@ -3590,6 +3639,13 @@ tcl_target_func( Jim_Interp *interp,
Jim_GetOpt_NvpUnknown( &goi, nvp_assert, 1 );
return e;
}
// the halt or not param
e = Jim_GetOpt_Wide( &goi, &a);
if( e != JIM_OK ){
return e;
}
// determine if we should halt or not.
target->reset_halt = !!a;
// When this happens - all workareas are invalid.
target_free_all_working_areas_restore(target, 0);
@ -3623,12 +3679,12 @@ tcl_target_func( Jim_Interp *interp,
return e;
}
e = target_wait_state( target, n->value, a );
if( e == ERROR_OK ){
if( e != ERROR_OK ){
Jim_SetResult_sprintf( goi.interp,
"target: %s wait %s fails %d",
"target: %s wait %s fails (%d) %s",
target->cmd_name,
n->name,
target_strerror_safe(e) );
e, target_strerror_safe(e) );
return JIM_ERR;
} else {
return JIM_OK;
@ -3663,6 +3719,18 @@ tcl_target_func( Jim_Interp *interp,
Jim_SetResultString( goi.interp,
Jim_Nvp_value2name_simple(nvp_target_state,target->state)->name,-1);
return JIM_OK;
case TS_CMD_INVOKE_EVENT:
if( goi.argc != 1 ){
Jim_SetResult_sprintf( goi.interp, "%s ?EVENTNAME?",n->name);
return JIM_ERR;
}
e = Jim_GetOpt_Nvp( &goi, nvp_target_event, &n );
if( e != JIM_OK ){
Jim_GetOpt_NvpUnknown( &goi, nvp_target_event, 1 );
return e;
}
target_handle_event( target, n->value );
return JIM_OK;
}
return JIM_ERR;
}
@ -4006,6 +4074,8 @@ jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
Jim_NewIntObj( goi.interp, max_target_number()));
return JIM_OK;
}
return JIM_ERR;
}