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-rw-r--r--src/target/cortex_m3.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index d938210a..5816981c 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -44,6 +44,7 @@
/* cli handling */
int cortex_m3_register_commands(struct command_context_s *cmd_ctx);
+int handle_cortex_m3_mask_interrupts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* forward declarations */
void cortex_m3_enable_breakpoints(struct target_s *target);
@@ -1568,8 +1569,46 @@ int cortex_m3_target_create(struct target_s *target, Jim_Interp *interp)
int cortex_m3_register_commands(struct command_context_s *cmd_ctx)
{
int retval;
+ command_t *cortex_m3_cmd;
retval = armv7m_register_commands(cmd_ctx);
+ cortex_m3_cmd = register_command(cmd_ctx, NULL, "cortex_m3", NULL, COMMAND_ANY, "cortex_m3 specific commands");
+ register_command(cmd_ctx, cortex_m3_cmd, "maskisr", handle_cortex_m3_mask_interrupts_command, COMMAND_EXEC, "mask cortex_m3 interrupts ['on'|'off']");
+
return retval;
}
+
+int handle_cortex_m3_mask_interrupts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
+
+ if (target->state != TARGET_HALTED)
+ {
+ command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+ return ERROR_OK;
+ }
+
+ if (argc > 0)
+ {
+ if (!strcmp(args[0], "on"))
+ {
+ cortex_m3_write_debug_halt_mask(target, C_HALT|C_MASKINTS, 0);
+ }
+ else if (!strcmp(args[0], "off"))
+ {
+ cortex_m3_write_debug_halt_mask(target, C_HALT, C_MASKINTS);
+ }
+ else
+ {
+ command_print(cmd_ctx, "usage: cortex_m3 maskisr ['on'|'off']");
+ }
+ }
+
+ command_print(cmd_ctx, "cortex_m3 interrupt mask %s",
+ (cortex_m3->dcb_dhcsr & C_MASKINTS) ? "on" : "off");
+
+ return ERROR_OK;
+}