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target: groundwork for "reset-assert" event

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This defines a "reset-assert" event and a supporting utility
routine, and documents both how targets should implement it
and how config scripts should use it.  Core-specific updates
are needed to make this work.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-11-27 18:50:20 -08:00
parent 4d2750e571
commit 4e56a2303b
3 changed files with 64 additions and 7 deletions
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19
src/target/target.c
View File

@@ -147,6 +147,7 @@ static const Jim_Nvp nvp_target_event[] = {
{ .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
{ .value = TARGET_EVENT_RESET_ASSERT_PRE, .name = "reset-assert-pre" },
{ .value = TARGET_EVENT_RESET_ASSERT, .name = "reset-assert" },
{ .value = TARGET_EVENT_RESET_ASSERT_POST, .name = "reset-assert-post" },
{ .value = TARGET_EVENT_RESET_DEASSERT_PRE, .name = "reset-deassert-pre" },
{ .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
@@ -154,8 +155,8 @@ static const Jim_Nvp nvp_target_event[] = {
{ .value = TARGET_EVENT_RESET_HALT_POST, .name = "reset-halt-post" },
{ .value = TARGET_EVENT_RESET_WAIT_PRE, .name = "reset-wait-pre" },
{ .value = TARGET_EVENT_RESET_WAIT_POST, .name = "reset-wait-post" },
{ .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },
{ .value = TARGET_EVENT_RESET_INIT, .name = "reset-init" },
{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },
{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
{ .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
@@ -3523,6 +3524,20 @@ void target_handle_event(struct target *target, enum target_event e)
}
}
/**
* Returns true only if the target has a handler for the specified event.
*/
bool target_has_event_action(struct target *target, enum target_event event)
{
struct target_event_action *teap;
for (teap = target->event_action; teap != NULL; teap = teap->next) {
if (teap->event == event)
return true;
}
return false;
}
enum target_cfg_param {
TCFG_TYPE,
TCFG_EVENT,

5
src/target/target.h
View File

@@ -196,6 +196,7 @@ enum target_event
TARGET_EVENT_RESET_START,
TARGET_EVENT_RESET_ASSERT_PRE,
TARGET_EVENT_RESET_ASSERT, /* C code uses this instead of SRST */
TARGET_EVENT_RESET_ASSERT_POST,
TARGET_EVENT_RESET_DEASSERT_PRE,
TARGET_EVENT_RESET_DEASSERT_POST,
@@ -226,7 +227,9 @@ struct target_event_action {
struct Jim_Obj *body;
int has_percent;
struct target_event_action *next;
};
};
bool target_has_event_action(struct target *target, enum target_event event);
struct target_event_callback
{