#include <jtag/interface.h>
#include <helper/time_support.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;
- uint16_t prescaler = TPIU_ACPR_MAX_SWOSCALER + 1;
- int retval;
-
- 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->trace_freq) {
- LOG_ERROR("Trace port frequency is 0, can't enable TPIU");
- return ERROR_FAIL;
- }
-
- retval = target_write_u32(target, TPIU_CSPSR, 1 << trace_config->port_size);
- if (retval != ERROR_OK)
- return retval;
-
- retval = target_write_u32(target, TPIU_ACPR, prescaler - 1);
- if (retval != ERROR_OK)
- return retval;
-
- retval = target_write_u32(target, TPIU_SPPR, trace_config->pin_protocol);
- if (retval != ERROR_OK)
- return retval;
-
- uint32_t ffcr;
- retval = target_read_u32(target, TPIU_FFCR, &ffcr);
- if (retval != ERROR_OK)
- return retval;
- if (trace_config->formatter)
- ffcr |= (1 << 1);
- else
- ffcr &= ~(1 << 1);
- retval = target_write_u32(target, TPIU_FFCR, ffcr);
- 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;
-}
-
int armv7m_trace_itm_config(struct target *target)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
return ERROR_OK;
}
-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)
-{
- /* 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)
-{
- struct target *target = get_current_target(CMD_CTX);
- struct armv7m_common *armv7m = target_to_armv7m(target);
-
- unsigned int cmd_idx = 0;
-
- if (CMD_ARGC == cmd_idx)
- return ERROR_COMMAND_SYNTAX_ERROR;
- if (!strcmp(CMD_ARGV[cmd_idx], "disable")) {
- if (CMD_ARGC == cmd_idx + 1) {
- close_trace_channel(armv7m);
-
- armv7m->trace_config.config_type = TRACE_CONFIG_TYPE_DISABLED;
- if (CMD_CTX->mode == COMMAND_EXEC)
- return armv7m_trace_tpiu_config(target);
- else
- return ERROR_OK;
- }
- } else if (!strcmp(CMD_ARGV[cmd_idx], "external") ||
- !strcmp(CMD_ARGV[cmd_idx], "internal")) {
- close_trace_channel(armv7m);
-
- 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 = 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++;
- if (CMD_ARGC == cmd_idx)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (!strcmp(CMD_ARGV[cmd_idx], "sync")) {
- armv7m->trace_config.pin_protocol = TPIU_PIN_PROTOCOL_SYNC;
-
- cmd_idx++;
- if (CMD_ARGC == cmd_idx)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- 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 = TPIU_PIN_PROTOCOL_ASYNC_MANCHESTER;
- else if (!strcmp(CMD_ARGV[cmd_idx], "uart"))
- armv7m->trace_config.pin_protocol = TPIU_PIN_PROTOCOL_ASYNC_UART;
- else
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- cmd_idx++;
- if (CMD_ARGC == cmd_idx)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- COMMAND_PARSE_ON_OFF(CMD_ARGV[cmd_idx], armv7m->trace_config.formatter);
- }
-
- cmd_idx++;
- if (CMD_ARGC == cmd_idx)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[cmd_idx], armv7m->trace_config.traceclkin_freq);
-
- cmd_idx++;
- if (CMD_ARGC != cmd_idx) {
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[cmd_idx], armv7m->trace_config.trace_freq);
- cmd_idx++;
- } else {
- 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;
- }
- armv7m->trace_config.trace_freq = 0;
- }
-
- if (CMD_ARGC == cmd_idx) {
- if (CMD_CTX->mode == COMMAND_EXEC)
- return armv7m_trace_tpiu_config(target);
- else
- return ERROR_OK;
- }
- }
-
- return ERROR_COMMAND_SYNTAX_ERROR;
-}
-
COMMAND_HANDLER(handle_itm_port_command)
{
struct target *target = get_current_target(CMD_CTX);
return ERROR_OK;
}
-static const struct command_registration tpiu_command_handlers[] = {
- {
- .name = "config",
- .handler = handle_tpiu_config_command,
- .mode = COMMAND_ANY,
- .help = "Configure TPIU features",
- .usage = "(disable | "
- "((external | internal (<filename> | <:port> | -)) "
- "(sync <port width> | ((manchester | uart) <formatter enable>)) "
- "<TRACECLKIN freq> [<trace freq>]))",
- },
- COMMAND_REGISTRATION_DONE
-};
-
static const struct command_registration itm_command_handlers[] = {
{
.name = "port",
};
const struct command_registration armv7m_trace_command_handlers[] = {
- {
- .name = "tpiu",
- .mode = COMMAND_ANY,
- .help = "tpiu command group",
- .usage = "",
- .chain = tpiu_command_handlers,
- },
{
.name = "itm",
.mode = COMMAND_ANY,
Code Review / openocd.git / blobdiff