* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <target/armv7m.h>
#include <target/cortex_m.h>
#include <target/armv7m_trace.h>
+#include <jtag/interface.h>
+
+#define TRACE_BUF_SIZE 4096
+
+static int armv7m_poll_trace(void *target)
+{
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ uint8_t buf[TRACE_BUF_SIZE];
+ size_t size = sizeof(buf);
+ int retval;
+
+ retval = adapter_poll_trace(buf, &size);
+ if (retval != ERROR_OK || !size)
+ return retval;
+
+ target_call_trace_callbacks(target, size, buf);
+
+ switch (armv7m->trace_config.internal_channel) {
+ case TRACE_INTERNAL_CHANNEL_FILE:
+ if (armv7m->trace_config.trace_file != NULL) {
+ if (fwrite(buf, 1, size, armv7m->trace_config.trace_file) == size)
+ fflush(armv7m->trace_config.trace_file);
+ else {
+ LOG_ERROR("Error writing to the trace destination file");
+ return ERROR_FAIL;
+ }
+ }
+ break;
+ case TRACE_INTERNAL_CHANNEL_TCP:
+ if (armv7m->trace_config.trace_service != NULL) {
+ /* broadcast to all service connections */
+ struct connection *connection = armv7m->trace_config.trace_service->connections;
+ retval = ERROR_OK;
+ while (connection) {
+ if (connection_write(connection, buf, size) != (int) size)
+ retval = ERROR_FAIL;
+
+ connection = connection->next;
+ }
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Error streaming the trace to TCP/IP port");
+ return ERROR_FAIL;
+ }
+ }
+ break;
+ case TRACE_INTERNAL_CHANNEL_TCL_ONLY:
+ /* nothing to do :
+ * the trace data is sent to TCL by calling the target_call_trace_callbacks
+ **/
+ break;
+ default:
+ LOG_ERROR("unsupported trace internal channel");
+ return ERROR_FAIL;
+ }
+
+ return ERROR_OK;
+}
int armv7m_trace_tpiu_config(struct target *target)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
struct armv7m_trace_config *trace_config = &armv7m->trace_config;
- int prescaler;
+ uint16_t prescaler;
int retval;
- if (!trace_config->trace_freq) {
- LOG_ERROR("Trace port frequency is 0, can't enable TPIU");
- return ERROR_FAIL;
+ target_unregister_timer_callback(armv7m_poll_trace, target);
+
+ retval = adapter_config_trace(trace_config->config_type == TRACE_CONFIG_TYPE_INTERNAL,
+ trace_config->pin_protocol, trace_config->port_size,
+ &trace_config->trace_freq, trace_config->traceclkin_freq, &prescaler);
+
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (trace_config->config_type == TRACE_CONFIG_TYPE_EXTERNAL) {
+ prescaler = trace_config->traceclkin_freq / trace_config->trace_freq;
+
+ if (trace_config->traceclkin_freq % trace_config->trace_freq) {
+ prescaler++;
+
+ int trace_freq = trace_config->traceclkin_freq / prescaler;
+ LOG_INFO("Can not obtain %u trace port frequency from %u "
+ "TRACECLKIN frequency, using %u instead",
+ trace_config->trace_freq, trace_config->traceclkin_freq,
+ trace_freq);
+
+ trace_config->trace_freq = trace_freq;
+ }
}
- if (trace_config->traceclkin_freq % trace_config->trace_freq) {
- LOG_ERROR("Can not calculate an integer divisor to get %u trace port frequency from %u TRACECLKIN frequency",
- trace_config->trace_freq, trace_config->traceclkin_freq);
+ if (!trace_config->trace_freq) {
+ LOG_ERROR("Trace port frequency is 0, can't enable TPIU");
return ERROR_FAIL;
}
- prescaler = trace_config->traceclkin_freq / trace_config->trace_freq;
-
retval = target_write_u32(target, TPIU_CSPSR, 1 << trace_config->port_size);
if (retval != ERROR_OK)
return retval;
if (retval != ERROR_OK)
return retval;
+ if (trace_config->config_type == TRACE_CONFIG_TYPE_INTERNAL)
+ target_register_timer_callback(armv7m_poll_trace, 1,
+ TARGET_TIMER_TYPE_PERIODIC, target);
+
target_call_event_callbacks(target, TARGET_EVENT_TRACE_CONFIG);
return ERROR_OK;
return ERROR_OK;
}
-static void close_trace_file(struct armv7m_common *armv7m)
+static void close_trace_channel(struct armv7m_common *armv7m)
+{
+ switch (armv7m->trace_config.internal_channel) {
+ case TRACE_INTERNAL_CHANNEL_FILE:
+ if (armv7m->trace_config.trace_file)
+ fclose(armv7m->trace_config.trace_file);
+ armv7m->trace_config.trace_file = NULL;
+ break;
+ case TRACE_INTERNAL_CHANNEL_TCP:
+ if (armv7m->trace_config.trace_service)
+ remove_service(armv7m->trace_config.trace_service->name, armv7m->trace_config.trace_service->port);
+ armv7m->trace_config.trace_service = NULL;
+ break;
+ case TRACE_INTERNAL_CHANNEL_TCL_ONLY:
+ /* nothing to do:
+ * the trace polling is disabled in the beginning of armv7m_trace_tpiu_config
+ **/
+ break;
+ default:
+ LOG_ERROR("unsupported trace internal channel");
+ }
+}
+
+static int trace_new_connection(struct connection *connection)
{
- if (armv7m->trace_config.trace_file)
- fclose(armv7m->trace_config.trace_file);
- armv7m->trace_config.trace_file = NULL;
+ /* nothing to do */
+ return ERROR_OK;
+}
+
+static int trace_input(struct connection *connection)
+{
+ /* create a dummy buffer to check if the connection is still active */
+ const int buf_len = 100;
+ unsigned char buf[buf_len];
+ int bytes_read = connection_read(connection, buf, buf_len);
+
+ if (bytes_read == 0)
+ return ERROR_SERVER_REMOTE_CLOSED;
+ else if (bytes_read == -1) {
+ LOG_ERROR("error during read: %s", strerror(errno));
+ return ERROR_SERVER_REMOTE_CLOSED;
+ }
+
+ return ERROR_OK;
+}
+
+static int trace_connection_closed(struct connection *connection)
+{
+ /* nothing to do, no connection->priv to free */
+ return ERROR_OK;
+}
+
+extern struct command_context *global_cmd_ctx;
+
+int armv7m_trace_tpiu_exit(struct target *target)
+{
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+
+ if (global_cmd_ctx->mode == COMMAND_CONFIG ||
+ armv7m->trace_config.config_type == TRACE_CONFIG_TYPE_DISABLED)
+ return ERROR_OK;
+
+ close_trace_channel(armv7m);
+ armv7m->trace_config.config_type = TRACE_CONFIG_TYPE_DISABLED;
+ return armv7m_trace_tpiu_config(target);
}
COMMAND_HANDLER(handle_tpiu_config_command)
return ERROR_COMMAND_SYNTAX_ERROR;
if (!strcmp(CMD_ARGV[cmd_idx], "disable")) {
if (CMD_ARGC == cmd_idx + 1) {
- close_trace_file(armv7m);
+ close_trace_channel(armv7m);
- armv7m->trace_config.config_type = DISABLED;
+ armv7m->trace_config.config_type = TRACE_CONFIG_TYPE_DISABLED;
if (CMD_CTX->mode == COMMAND_EXEC)
return armv7m_trace_tpiu_config(target);
else
}
} else if (!strcmp(CMD_ARGV[cmd_idx], "external") ||
!strcmp(CMD_ARGV[cmd_idx], "internal")) {
- close_trace_file(armv7m);
+ close_trace_channel(armv7m);
- armv7m->trace_config.config_type = EXTERNAL;
+ armv7m->trace_config.config_type = TRACE_CONFIG_TYPE_EXTERNAL;
if (!strcmp(CMD_ARGV[cmd_idx], "internal")) {
cmd_idx++;
if (CMD_ARGC == cmd_idx)
return ERROR_COMMAND_SYNTAX_ERROR;
- armv7m->trace_config.config_type = INTERNAL;
- armv7m->trace_config.trace_file = fopen(CMD_ARGV[cmd_idx], "ab");
- if (!armv7m->trace_config.trace_file) {
- LOG_ERROR("Can't open trace destination file");
- return ERROR_FAIL;
+ armv7m->trace_config.config_type = TRACE_CONFIG_TYPE_INTERNAL;
+ armv7m->trace_config.internal_channel = TRACE_INTERNAL_CHANNEL_TCL_ONLY;
+
+ if (strcmp(CMD_ARGV[cmd_idx], "-") != 0) {
+ if (CMD_ARGV[cmd_idx][0] == ':') {
+ armv7m->trace_config.internal_channel = TRACE_INTERNAL_CHANNEL_TCP;
+
+ int ret = add_service("armv7m_trace", &(CMD_ARGV[cmd_idx][1]),
+ CONNECTION_LIMIT_UNLIMITED, trace_new_connection, trace_input,
+ trace_connection_closed, NULL, &armv7m->trace_config.trace_service);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Can't configure trace TCP port");
+ return ERROR_FAIL;
+ }
+ } else {
+ armv7m->trace_config.internal_channel = TRACE_INTERNAL_CHANNEL_FILE;
+ armv7m->trace_config.trace_file = fopen(CMD_ARGV[cmd_idx], "ab");
+ if (!armv7m->trace_config.trace_file) {
+ LOG_ERROR("Can't open trace destination file");
+ return ERROR_FAIL;
+ }
+ }
}
}
cmd_idx++;
return ERROR_COMMAND_SYNTAX_ERROR;
if (!strcmp(CMD_ARGV[cmd_idx], "sync")) {
- armv7m->trace_config.pin_protocol = SYNC;
+ armv7m->trace_config.pin_protocol = TPIU_PIN_PROTOCOL_SYNC;
cmd_idx++;
if (CMD_ARGC == cmd_idx)
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[cmd_idx], armv7m->trace_config.port_size);
} else {
if (!strcmp(CMD_ARGV[cmd_idx], "manchester"))
- armv7m->trace_config.pin_protocol = ASYNC_MANCHESTER;
+ armv7m->trace_config.pin_protocol = TPIU_PIN_PROTOCOL_ASYNC_MANCHESTER;
else if (!strcmp(CMD_ARGV[cmd_idx], "uart"))
- armv7m->trace_config.pin_protocol = ASYNC_UART;
+ armv7m->trace_config.pin_protocol = TPIU_PIN_PROTOCOL_ASYNC_UART;
else
return ERROR_COMMAND_SYNTAX_ERROR;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[cmd_idx], armv7m->trace_config.trace_freq);
cmd_idx++;
} else {
- if (armv7m->trace_config.config_type != INTERNAL) {
+ if (armv7m->trace_config.config_type != TRACE_CONFIG_TYPE_INTERNAL) {
LOG_ERROR("Trace port frequency can't be omitted in external capture mode");
return ERROR_COMMAND_SYNTAX_ERROR;
}
.mode = COMMAND_ANY,
.help = "Configure TPIU features",
.usage = "(disable | "
- "((external | internal <filename>) "
+ "((external | internal (<filename> | <:port> | -)) "
"(sync <port width> | ((manchester | uart) <formatter enable>)) "
"<TRACECLKIN freq> [<trace freq>]))",
},
projects / fw / openocd / blobdiff