target/arm_cti: add new 'ack' and 'channel' commands

these commands have been introduced to ease the manipulation of CTI trough
script files, these commands are:
 - $cti_name ack $event : to acknowledge a CTI event
 - $cti_name channel $channel_number $operation: to perform an operation
    on a specific channel, the possible operations are:
    gate, ungate, set, clear and pulse

Change-Id: I35463867a3c85072f3776c3aeb1e5788953ec435
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/5315
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins

diff --git a/doc/openocd.texi b/doc/openocd.texi
index de7fe0ac18db4e1a025dae34320cd31806a92e0d..349998b3599074b47f90b69c3946fdb2a00e7561 100644 (file)
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -8436,6 +8436,15 @@ Write @var{value} to the CTI register with the symbolic name @var{reg_name}.
 Print the value read from the CTI register with the symbolic name @var{reg_name}.
 @end deffn
 
+@deffn Command {$cti_name ack} @var{event}
+Acknowledge a CTI @var{event}.
+@end deffn
+
+@deffn Command {$cti_name channel} @var{channel_number} @var{operation}
+Perform a specific channel operation, the possible operations are:
+gate, ungate, set, clear and pulse
+@end deffn
+
 @deffn Command {$cti_name testmode} @option{on|off}
 Enable (@option{on}) or disable (@option{off}) the integration test mode
 of the CTI.

diff --git a/src/target/arm_cti.c b/src/target/arm_cti.c
index 3f063b8942b127c4573b809c19ab9741b033d38b..d415eb3a8fa658c09242756b392394f1237d2128 100644 (file)
--- a/src/target/arm_cti.c
+++ b/src/target/arm_cti.c
@@ -341,6 +341,59 @@ COMMAND_HANDLER(handle_cti_read)
        return ERROR_OK;
 }
 
+COMMAND_HANDLER(handle_cti_ack)
+{
+       struct arm_cti_object *obj = CMD_DATA;
+       struct arm_cti *cti = &obj->cti;
+       uint32_t event;
+
+       if (CMD_ARGC != 1)
+               return ERROR_COMMAND_SYNTAX_ERROR;
+
+       COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], event);
+
+       int retval = arm_cti_ack_events(cti, 1 << event);
+
+
+       if (retval != ERROR_OK)
+               return retval;
+
+       return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_cti_channel)
+{
+       struct arm_cti_object *obj = CMD_DATA;
+       struct arm_cti *cti = &obj->cti;
+       int retval = ERROR_OK;
+       uint32_t ch_num;
+
+       if (CMD_ARGC != 2)
+               return ERROR_COMMAND_SYNTAX_ERROR;
+
+       COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], ch_num);
+
+       if (!strcmp(CMD_ARGV[1], "gate"))
+               retval = arm_cti_gate_channel(cti, ch_num);
+       else if (!strcmp(CMD_ARGV[1], "ungate"))
+               retval = arm_cti_ungate_channel(cti, ch_num);
+       else if (!strcmp(CMD_ARGV[1], "pulse"))
+               retval = arm_cti_pulse_channel(cti, ch_num);
+       else if (!strcmp(CMD_ARGV[1], "set"))
+               retval = arm_cti_set_channel(cti, ch_num);
+       else if (!strcmp(CMD_ARGV[1], "clear"))
+               retval = arm_cti_clear_channel(cti, ch_num);
+       else {
+               command_print(CMD, "Possible channel operations: gate|ungate|set|clear|pulse");
+               return ERROR_COMMAND_ARGUMENT_INVALID;
+       }
+
+       if (retval != ERROR_OK)
+               return retval;
+
+       return ERROR_OK;
+}
+
 static const struct command_registration cti_instance_command_handlers[] = {
        {
                .name  = "dump",
@@ -377,6 +430,21 @@ static const struct command_registration cti_instance_command_handlers[] = {
                .help = "read a CTI register",
                .usage = "register_name",
        },
+       {
+               .name = "ack",
+               .mode = COMMAND_EXEC,
+               .handler = handle_cti_ack,
+               .help = "acknowledge a CTI event",
+               .usage = "event",
+       },
+       {
+               .name = "channel",
+               .mode = COMMAND_EXEC,
+               .handler = handle_cti_channel,
+               .help = "do an operation on one CTI channel, possible operations: "
+                               "gate, ungate, set, clear and pulse",
+               .usage = "channel_number operation",
+       },
        COMMAND_REGISTRATION_DONE
 };