#include <target/cortex_m.h>
+#include <helper/system.h>
+
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+
#include "libusb_helper.h"
#ifdef HAVE_LIBUSB1
struct libusb_transfer *trans;
};
+struct stlink_tcp_priv_s {
+ /** */
+ int fd;
+ /** */
+ bool connected;
+ /** */
+ uint32_t device_id;
+ /** */
+ uint32_t connect_id;
+ /** */
+ uint8_t *send_buf;
+ /** */
+ uint8_t *recv_buf;
+};
+
struct stlink_backend_s {
/** */
int (*open)(void *handle, struct hl_interface_param_s *param);
/** */
union {
struct stlink_usb_priv_s usb_backend_priv;
+ struct stlink_tcp_priv_s tcp_backend_priv;
};
/** */
uint8_t rx_ep;
/** */
uint8_t trace_ep;
/** */
- uint8_t cmdbuf[STLINK_SG_SIZE];
+ uint8_t *cmdbuf;
/** */
uint8_t cmdidx;
/** */
uint8_t direction;
/** */
- uint8_t databuf[STLINK_DATA_SIZE];
+ uint8_t *databuf;
/** */
uint32_t max_mem_packet;
/** */
#define REQUEST_SENSE 0x03
#define REQUEST_SENSE_LENGTH 18
+/* STLINK TCP commands */
+#define STLINK_TCP_CMD_REFRESH_DEVICE_LIST 0x00
+#define STLINK_TCP_CMD_GET_NB_DEV 0x01
+#define STLINK_TCP_CMD_GET_DEV_INFO 0x02
+#define STLINK_TCP_CMD_OPEN_DEV 0x03
+#define STLINK_TCP_CMD_CLOSE_DEV 0x04
+#define STLINK_TCP_CMD_SEND_USB_CMD 0x05
+#define STLINK_TCP_CMD_GET_SERVER_VERSION 0x06
+#define STLINK_TCP_CMD_GET_NB_OF_DEV_CLIENTS 0x07
+
+/* STLINK TCP constants */
+#define OPENOCD_STLINK_TCP_API_VERSION 1
+#define STLINK_TCP_REQUEST_WRITE 0
+#define STLINK_TCP_REQUEST_READ 1
+#define STLINK_TCP_REQUEST_READ_SWO 3
+#define STLINK_TCP_SS_SIZE 4
+#define STLINK_TCP_USB_CMD_SIZE 32
+#define STLINK_TCP_SERIAL_SIZE 32
+#define STLINK_TCP_SEND_BUFFER_SIZE 10240
+#define STLINK_TCP_RECV_BUFFER_SIZE 10240
+
+/* STLINK TCP command status */
+#define STLINK_TCP_SS_OK 0x00000001
+#define STLINK_TCP_SS_MEMORY_PROBLEM 0x00001000
+#define STLINK_TCP_SS_TIMEOUT 0x00001001
+#define STLINK_TCP_SS_BAD_PARAMETER 0x00001002
+#define STLINK_TCP_SS_OPEN_ERR 0x00001003
+#define STLINK_TCP_SS_TRUNCATED_DATA 0x00001052
+#define STLINK_TCP_SS_CMD_NOT_AVAILABLE 0x00001053
+#define STLINK_TCP_SS_TCP_ERROR 0x00002001
+#define STLINK_TCP_SS_TCP_CANT_CONNECT 0x00002002
+#define STLINK_TCP_SS_WIN32_ERROR 0x00010000
+
/*
* Map the relevant features, quirks and workaround for specific firmware
* version of stlink
return ERROR_OK;
}
+
+static int stlink_tcp_send_cmd(void *handle, int send_size, int recv_size, bool check_tcp_status)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ assert(handle != NULL);
+
+ /* send the TCP command */
+ int sent_size = send(h->tcp_backend_priv.fd, (void *)h->tcp_backend_priv.send_buf, send_size, 0);
+ if (sent_size != send_size) {
+ LOG_ERROR("failed to send USB CMD");
+ if (sent_size == -1)
+ LOG_DEBUG("socket send error: %s (errno %d)", strerror(errno), errno);
+ else
+ LOG_DEBUG("sent size %d (expected %d)", sent_size, send_size);
+ return ERROR_FAIL;
+ }
+
+ keep_alive();
+
+ /* read the TCP response */
+ int received_size = recv(h->tcp_backend_priv.fd, (void *)h->tcp_backend_priv.recv_buf, recv_size, 0);
+ if (received_size != recv_size) {
+ LOG_ERROR("failed to receive USB CMD response");
+ if (received_size == -1)
+ LOG_DEBUG("socket recv error: %s (errno %d)", strerror(errno), errno);
+ else
+ LOG_DEBUG("received size %d (expected %d)", received_size, recv_size);
+ return ERROR_FAIL;
+ }
+
+ if (check_tcp_status) {
+ uint32_t tcp_ss = le_to_h_u32(h->tcp_backend_priv.recv_buf);
+ if (tcp_ss != STLINK_TCP_SS_OK) {
+ LOG_ERROR("TCP error status 0x%X", tcp_ss);
+ return ERROR_FAIL;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+/** */
+static int stlink_tcp_xfer_noerrcheck(void *handle, const uint8_t *buf, int size)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ int send_size = STLINK_TCP_USB_CMD_SIZE;
+ int recv_size = STLINK_TCP_SS_SIZE;
+
+ assert(handle != NULL);
+
+ /* prepare the TCP command */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_SEND_USB_CMD;
+ memset(&h->tcp_backend_priv.send_buf[1], 0, 3); /* reserved for alignment and future use, must be zero */
+ h_u32_to_le(&h->tcp_backend_priv.send_buf[4], h->tcp_backend_priv.connect_id);
+ /* tcp_backend_priv.send_buf[8..23] already contains the constructed stlink command */
+ h->tcp_backend_priv.send_buf[24] = h->direction;
+ memset(&h->tcp_backend_priv.send_buf[25], 0, 3); /* reserved for alignment and future use, must be zero */
+
+ h_u32_to_le(&h->tcp_backend_priv.send_buf[28], size);
+
+ /*
+ * if the xfer is a write request (tx_ep)
+ * > then buf content will be copied
+ * into &cmdbuf[32].
+ * else : the xfer is a read or trace read request (rx_ep or trace_ep)
+ * > the buf content will be filled from &databuf[4].
+ *
+ * note : if h->direction is trace_ep, h->cmdbuf is zeros.
+ */
+
+ if (h->direction == h->tx_ep) { /* STLINK_TCP_REQUEST_WRITE */
+ send_size += size;
+ if (send_size > STLINK_TCP_SEND_BUFFER_SIZE) {
+ LOG_ERROR("STLINK_TCP command buffer overflow");
+ return ERROR_FAIL;
+ }
+ memcpy(&h->tcp_backend_priv.send_buf[32], buf, size);
+ } else { /* STLINK_TCP_REQUEST_READ or STLINK_TCP_REQUEST_READ_SWO */
+ recv_size += size;
+ if (recv_size > STLINK_TCP_RECV_BUFFER_SIZE) {
+ LOG_ERROR("STLINK_TCP data buffer overflow");
+ return ERROR_FAIL;
+ }
+ }
+
+ int ret = stlink_tcp_send_cmd(h, send_size, recv_size, true);
+ if (ret != ERROR_OK)
+ return ret;
+
+ if (h->direction != h->tx_ep) {
+ /* the read data is located in tcp_backend_priv.recv_buf[4] */
+ /* most of the case it will be copying the data from tcp_backend_priv.recv_buf[4]
+ * to handle->cmd_buff which are the same, so let's avoid unnecessary copying */
+ if (buf != &h->tcp_backend_priv.recv_buf[4])
+ memcpy((uint8_t *)buf, &h->tcp_backend_priv.recv_buf[4], size);
+ }
+
+ return ERROR_OK;
+}
+
+/** */
+static int stlink_tcp_read_trace(void *handle, const uint8_t *buf, int size)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ stlink_usb_init_buffer(h, h->trace_ep, 0);
+ return stlink_tcp_xfer_noerrcheck(handle, buf, size);
+}
+
/**
Converts an STLINK status code held in the first byte of a response
to an openocd error, logs any error/wait status as debug output.
{
struct stlink_usb_handle_s *h = handle;
- if (h && h->usb_backend_priv.fd) {
+ if (!h)
+ return ERROR_OK;
+
+ if (h->usb_backend_priv.fd) {
stlink_usb_exit_mode(h);
/* do not check return code, it prevent
us from closing jtag_libusb */
jtag_libusb_close(h->usb_backend_priv.fd);
}
+ free(h->cmdbuf);
+ free(h->databuf);
+
return ERROR_OK;
}
+/** */
+static int stlink_tcp_close(void *handle)
+{
+ struct stlink_usb_handle_s *h = handle;
+
+ if (!h)
+ return ERROR_OK;
+
+ int ret = ERROR_OK;
+ if (h->tcp_backend_priv.connected) {
+ if (h->tcp_backend_priv.connect_id) {
+ stlink_usb_exit_mode(h);
+
+ /* close the stlink */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_CLOSE_DEV;
+ memset(&h->tcp_backend_priv.send_buf[1], 0, 4); /* reserved */
+ h_u32_to_le(&h->tcp_backend_priv.send_buf[4], h->tcp_backend_priv.connect_id);
+ ret = stlink_tcp_send_cmd(h, 8, 4, true);
+ if (ret != ERROR_OK)
+ LOG_ERROR("cannot close the STLINK");
+ }
+
+ if (close_socket(h->tcp_backend_priv.fd) != 0)
+ LOG_ERROR("error closing the socket, errno: %s", strerror(errno));
+ }
+
+ free(h->tcp_backend_priv.send_buf);
+ free(h->tcp_backend_priv.recv_buf);
+
+ return ret;
+}
+
/** */
static int stlink_close(void *handle)
{
struct stlink_usb_handle_s *h = handle;
int err, retry_count = 1;
+ h->cmdbuf = malloc(STLINK_SG_SIZE);
+ h->databuf = malloc(STLINK_DATA_SIZE);
+
+ if (h->cmdbuf == NULL || h->databuf == NULL)
+ return ERROR_FAIL;
+
/*
On certain host USB configurations(e.g. MacBook Air)
STLINKv2 dongle seems to have its FW in a funky state if,
return ERROR_OK;
}
+/** */
+static int stlink_tcp_open(void *handle, struct hl_interface_param_s *param)
+{
+ struct stlink_usb_handle_s *h = handle;
+ int ret;
+
+ /* SWIM is not supported using stlink-server */
+ if (h->st_mode == STLINK_MODE_DEBUG_SWIM) {
+ LOG_ERROR("stlink-server does not support SWIM mode");
+ return ERROR_FAIL;
+ }
+
+ h->tcp_backend_priv.send_buf = malloc(STLINK_TCP_SEND_BUFFER_SIZE);
+ h->tcp_backend_priv.recv_buf = malloc(STLINK_TCP_RECV_BUFFER_SIZE);
+
+ if (h->tcp_backend_priv.send_buf == NULL || h->tcp_backend_priv.recv_buf == NULL)
+ return ERROR_FAIL;
+
+ h->cmdbuf = &h->tcp_backend_priv.send_buf[8];
+ h->databuf = &h->tcp_backend_priv.recv_buf[4];
+
+ /* configure directions */
+ h->rx_ep = STLINK_TCP_REQUEST_READ;
+ h->tx_ep = STLINK_TCP_REQUEST_WRITE;
+ h->trace_ep = STLINK_TCP_REQUEST_READ_SWO;
+
+ h->tcp_backend_priv.fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ h->tcp_backend_priv.connected = false;
+ h->tcp_backend_priv.device_id = 0;
+ h->tcp_backend_priv.connect_id = 0;
+
+ if (h->tcp_backend_priv.fd == -1) {
+ LOG_ERROR("error creating the socket, errno: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+
+ struct sockaddr_in serv;
+ memset(&serv, 0, sizeof(struct sockaddr_in));
+ serv.sin_family = AF_INET;
+ serv.sin_port = htons(param->stlink_tcp_port);
+ serv.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+ LOG_DEBUG("socket : %x", h->tcp_backend_priv.fd);
+
+ int optval = 1;
+ if (setsockopt(h->tcp_backend_priv.fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&optval, sizeof(int)) == -1) {
+ LOG_ERROR("cannot set sock option 'TCP_NODELAY', errno: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+
+ optval = STLINK_TCP_RECV_BUFFER_SIZE;
+ if (setsockopt(h->tcp_backend_priv.fd, SOL_SOCKET, SO_RCVBUF, (const void *)&optval, sizeof(int)) == -1) {
+ LOG_ERROR("cannot set sock option 'SO_RCVBUF', errno: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+
+ optval = STLINK_TCP_SEND_BUFFER_SIZE;
+ if (setsockopt(h->tcp_backend_priv.fd, SOL_SOCKET, SO_SNDBUF, (const void *)&optval, sizeof(int)) == -1) {
+ LOG_ERROR("cannot set sock option 'SO_SNDBUF', errno: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+
+ if (connect(h->tcp_backend_priv.fd, (const struct sockaddr *)&serv, sizeof(serv)) == -1) {
+ LOG_ERROR("cannot connect to stlink server, errno: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+
+ h->tcp_backend_priv.connected = true;
+
+ LOG_INFO("connected to stlink-server");
+
+ /* print stlink-server version */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_GET_SERVER_VERSION;
+ h->tcp_backend_priv.send_buf[1] = OPENOCD_STLINK_TCP_API_VERSION;
+ memset(&h->tcp_backend_priv.send_buf[2], 0, 2); /* reserved */
+ ret = stlink_tcp_send_cmd(h, 4, 16, false);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("cannot get the stlink-server version");
+ return ERROR_FAIL;
+ }
+
+ uint32_t api_ver = le_to_h_u32(&h->tcp_backend_priv.recv_buf[0]);
+ uint32_t ver_major = le_to_h_u32(&h->tcp_backend_priv.recv_buf[4]);
+ uint32_t ver_minor = le_to_h_u32(&h->tcp_backend_priv.recv_buf[8]);
+ uint32_t ver_build = le_to_h_u32(&h->tcp_backend_priv.recv_buf[12]);
+ LOG_INFO("stlink-server API v%d, version %d.%d.%d",
+ api_ver, ver_major, ver_minor, ver_build);
+
+ /* in stlink-server API v1 sending more than 1428 bytes will cause stlink-server
+ * to crash in windows: select a safe default value (1K) */
+ if (api_ver < 2)
+ h->max_mem_packet = (1 << 10);
+
+ /* refresh stlink list (re-enumerate) */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_REFRESH_DEVICE_LIST;
+ h->tcp_backend_priv.send_buf[1] = 0; /* don't clear the list, just refresh it */
+ ret = stlink_tcp_send_cmd(h, 2, 4, true);
+ if (ret != ERROR_OK)
+ return ret;
+
+ /* get the number of connected stlinks */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_GET_NB_DEV;
+ ret = stlink_tcp_send_cmd(h, 1, 4, false);
+ if (ret != ERROR_OK)
+ return ret;
+
+ uint32_t connected_stlinks = le_to_h_u32(h->tcp_backend_priv.recv_buf);
+
+ if (connected_stlinks == 0) {
+ LOG_ERROR("no ST-LINK detected");
+ return ERROR_FAIL;
+ }
+
+ LOG_DEBUG("%d ST-LINK detected", connected_stlinks);
+
+ if (connected_stlinks > 255) {
+ LOG_WARNING("STLink server cannot handle more than 255 ST-LINK connected");
+ connected_stlinks = 255;
+ }
+
+ /* list all connected ST-Link and seek for the requested vid:pid and serial */
+ char serial[STLINK_TCP_SERIAL_SIZE + 1] = {0};
+ uint8_t stlink_used;
+ bool stlink_id_matched = false;
+ bool stlink_serial_matched = (param->serial == NULL);
+
+ for (uint32_t stlink_id = 0; stlink_id < connected_stlinks; stlink_id++) {
+ /* get the stlink info */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_GET_DEV_INFO;
+ h->tcp_backend_priv.send_buf[1] = (uint8_t)stlink_id;
+ memset(&h->tcp_backend_priv.send_buf[2], 0, 2); /* reserved */
+ h_u32_to_le(&h->tcp_backend_priv.send_buf[4], 41); /* size of TDeviceInfo2 */
+ ret = stlink_tcp_send_cmd(h, 8, 45, true);
+ if (ret != ERROR_OK)
+ return ret;
+
+ h->tcp_backend_priv.device_id = le_to_h_u32(&h->tcp_backend_priv.recv_buf[4]);
+ memcpy(serial, &h->tcp_backend_priv.recv_buf[8], STLINK_TCP_SERIAL_SIZE);
+ h->vid = le_to_h_u16(&h->tcp_backend_priv.recv_buf[40]);
+ h->pid = le_to_h_u16(&h->tcp_backend_priv.recv_buf[42]);
+ stlink_used = h->tcp_backend_priv.recv_buf[44];
+
+ /* check the vid:pid */
+ for (int i = 0; param->vid[i]; i++) {
+ if (param->vid[i] == h->vid && param->pid[i] == h->pid) {
+ stlink_id_matched = true;
+ break;
+ }
+ }
+
+ if (!stlink_id_matched)
+ continue;
+
+ /* check the serial if specified */
+ if (param->serial) {
+ /* ST-Link server fixes the buggy serial returned by old ST-Link DFU
+ * for further details refer to stlink_usb_get_alternate_serial
+ * so if the user passes the buggy serial, we need to fix it before
+ * comparing with the serial returned by ST-Link server */
+ if (strlen(param->serial) == STLINK_SERIAL_LEN / 2) {
+ char fixed_serial[STLINK_SERIAL_LEN + 1];
+
+ for (unsigned int i = 0; i < STLINK_SERIAL_LEN; i += 2)
+ sprintf(fixed_serial + i, "%02X", param->serial[i / 2]);
+
+ fixed_serial[STLINK_SERIAL_LEN] = '\0';
+
+ stlink_serial_matched = strcmp(fixed_serial, serial) == 0;
+ } else
+ stlink_serial_matched = strcmp(param->serial, serial) == 0;
+ }
+
+ if (!stlink_serial_matched)
+ LOG_DEBUG("Device serial number '%s' doesn't match requested serial '%s'",
+ serial, param->serial);
+ else /* exit the search loop if there is match */
+ break;
+ }
+
+ if (!stlink_id_matched) {
+ LOG_ERROR("ST-LINK open failed (vid/pid mismatch)");
+ return ERROR_FAIL;
+ }
+
+ if (!stlink_serial_matched) {
+ LOG_ERROR("ST-LINK open failed (serial mismatch)");
+ return ERROR_FAIL;
+ }
+
+ /* check if device is 'exclusively' used by another application */
+ if (stlink_used) {
+ LOG_ERROR("the selected device is already used");
+ return ERROR_FAIL;
+ }
+
+ LOG_DEBUG("transport: vid: 0x%04x pid: 0x%04x serial: %s", h->vid, h->pid, serial);
+
+ /* now let's open the stlink */
+ h->tcp_backend_priv.send_buf[0] = STLINK_TCP_CMD_OPEN_DEV;
+ memset(&h->tcp_backend_priv.send_buf[1], 0, 4); /* reserved */
+ h_u32_to_le(&h->tcp_backend_priv.send_buf[4], h->tcp_backend_priv.device_id);
+ ret = stlink_tcp_send_cmd(h, 8, 8, true);
+ if (ret != ERROR_OK)
+ return ret;
+
+ h->tcp_backend_priv.connect_id = le_to_h_u32(&h->tcp_backend_priv.recv_buf[4]);
+
+ /* get stlink version */
+ return stlink_usb_version(h);
+}
+
static struct stlink_backend_s stlink_usb_backend = {
.open = stlink_usb_usb_open,
.close = stlink_usb_usb_close,
.read_trace = stlink_usb_usb_read_trace,
};
+static struct stlink_backend_s stlink_tcp_backend = {
+ .open = stlink_tcp_open,
+ .close = stlink_tcp_close,
+ .xfer_noerrcheck = stlink_tcp_xfer_noerrcheck,
+ .read_trace = stlink_tcp_read_trace,
+};
+
static int stlink_open(struct hl_interface_param_s *param, enum stlink_mode mode, void **fd)
{
struct stlink_usb_handle_s *h;
param->serial ? param->serial : "");
}
- h->backend = &stlink_usb_backend;
+ if (param->use_stlink_tcp)
+ h->backend = &stlink_tcp_backend;
+ else
+ h->backend = &stlink_usb_backend;
if (stlink_usb_open(h, param) != ERROR_OK)
goto error_open;
return ERROR_OK;
}
- /* get cpuid, so we can determine the max page size
- * start with a safe default */
- h->max_mem_packet = (1 << 10);
+ /* set max_mem_packet if it was not set by the low-level interface */
+ if (h->max_mem_packet == 0) {
+ /* get cpuid, so we can determine the max page size
+ * start with a safe default */
+ h->max_mem_packet = (1 << 10);
- uint8_t buffer[4];
- stlink_usb_open_ap(h, 0);
- err = stlink_usb_read_mem32(h, CPUID, 4, buffer);
- if (err == ERROR_OK) {
- uint32_t cpuid = le_to_h_u32(buffer);
- int i = (cpuid >> 4) & 0xf;
- if (i == 4 || i == 3) {
- /* Cortex-M3/M4 has 4096 bytes autoincrement range */
- h->max_mem_packet = (1 << 12);
+ uint8_t buffer[4];
+ stlink_usb_open_ap(h, 0);
+ err = stlink_usb_read_mem32(h, CPUID, 4, buffer);
+ if (err == ERROR_OK) {
+ uint32_t cpuid = le_to_h_u32(buffer);
+ int i = (cpuid >> 4) & 0xf;
+ if (i == 4 || i == 3) {
+ /* Cortex-M3/M4 has 4096 bytes autoincrement range */
+ h->max_mem_packet = (1 << 12);
+ }
}
- }
- LOG_DEBUG("Using TAR autoincrement: %" PRIu32, h->max_mem_packet);
+ LOG_DEBUG("Using TAR autoincrement: %" PRIu32, h->max_mem_packet);
+ }
*fd = h;
return ERROR_OK;
}
+/** */
+COMMAND_HANDLER(stlink_dap_backend_command)
+{
+ /* default values */
+ bool use_stlink_tcp = false;
+ uint16_t stlink_tcp_port = 7184;
+
+ if (CMD_ARGC == 0 || CMD_ARGC > 2)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ else if (strcmp(CMD_ARGV[0], "usb") == 0) {
+ if (CMD_ARGC > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ /* else use_stlink_tcp = false (already the case ) */
+ } else if (strcmp(CMD_ARGV[0], "tcp") == 0) {
+ use_stlink_tcp = true;
+ if (CMD_ARGC == 2)
+ COMMAND_PARSE_NUMBER(u16, CMD_ARGV[1], stlink_tcp_port);
+ } else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ stlink_dap_param.use_stlink_tcp = use_stlink_tcp;
+ stlink_dap_param.stlink_tcp_port = stlink_tcp_port;
+
+ return ERROR_OK;
+}
+
/** */
static const struct command_registration stlink_dap_subcommand_handlers[] = {
{
.help = "USB VID and PID of the adapter",
.usage = "(vid pid)+",
},
+ {
+ .name = "backend",
+ .handler = &stlink_dap_backend_command,
+ .mode = COMMAND_CONFIG,
+ .help = "select which ST-Link backend to use",
+ .usage = "usb | tcp [port]",
+ },
COMMAND_REGISTRATION_DONE
};
projects / fw / openocd / commitdiff