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-rw-r--r--doc/openocd.texi5
-rw-r--r--src/jtag/drivers/cmsis_dap_usb.c41
-rw-r--r--tcl/interface/cmsis-dap.cfg3
3 files changed, 48 insertions, 1 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi
index 925eebed..88d89284 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -2585,6 +2585,11 @@ cmsis_dap_vid_pid 0xc251 0xf001 0x0d28 0x0204
@end example
@end deffn
+@deffn {Config Command} {cmsis_dap_serial} [serial]
+Specifies the @var{serial} of the CMSIS-DAP device to use.
+If not specified, serial numbers are not considered.
+@end deffn
+
@deffn {Command} {cmsis-dap info}
Display various device information, like hardware version, firmware version, current bus status.
@end deffn
diff --git a/src/jtag/drivers/cmsis_dap_usb.c b/src/jtag/drivers/cmsis_dap_usb.c
index fd8c82e0..95f553b6 100644
--- a/src/jtag/drivers/cmsis_dap_usb.c
+++ b/src/jtag/drivers/cmsis_dap_usb.c
@@ -60,6 +60,7 @@
/* vid = pid = 0 marks the end of the list */
static uint16_t cmsis_dap_vid[MAX_USB_IDS + 1] = { 0 };
static uint16_t cmsis_dap_pid[MAX_USB_IDS + 1] = { 0 };
+static wchar_t *cmsis_dap_serial;
static bool swd_mode;
#define PACKET_SIZE (64 + 1) /* 64 bytes plus report id */
@@ -201,7 +202,12 @@ static int cmsis_dap_usb_open(void)
if (found) {
/* we have found an adapter, so exit further checks */
- break;
+ /* check serial number matches if given */
+ if (cmsis_dap_serial != NULL) {
+ if (wcscmp(cmsis_dap_serial, cur_dev->serial_number) == 0)
+ break;
+ } else
+ break;
}
cur_dev = cur_dev->next;
@@ -278,6 +284,11 @@ static void cmsis_dap_usb_close(struct cmsis_dap *dap)
cmsis_dap_handle = NULL;
}
+ if (cmsis_dap_serial) {
+ free(cmsis_dap_serial);
+ cmsis_dap_serial = NULL;
+ }
+
return;
}
@@ -1006,6 +1017,27 @@ COMMAND_HANDLER(cmsis_dap_handle_vid_pid_command)
return ERROR_OK;
}
+COMMAND_HANDLER(cmsis_dap_handle_serial_command)
+{
+ if (CMD_ARGC == 1) {
+ size_t len = mbstowcs(NULL, CMD_ARGV[0], 0);
+ cmsis_dap_serial = calloc(len + 1, sizeof(wchar_t));
+ if (cmsis_dap_serial == NULL) {
+ LOG_ERROR("unable to allocate memory");
+ return ERROR_OK;
+ }
+ if (mbstowcs(cmsis_dap_serial, CMD_ARGV[0], len + 1) == (size_t)-1) {
+ free(cmsis_dap_serial);
+ cmsis_dap_serial = NULL;
+ LOG_ERROR("unable to convert serial");
+ }
+ } else {
+ LOG_ERROR("expected exactly one argument to cmsis_dap_serial <serial-number>");
+ }
+
+ return ERROR_OK;
+}
+
static const struct command_registration cmsis_dap_subcommand_handlers[] = {
{
.name = "info",
@@ -1032,6 +1064,13 @@ static const struct command_registration cmsis_dap_command_handlers[] = {
.help = "the vendor ID and product ID of the CMSIS-DAP device",
.usage = "(vid pid)* ",
},
+ {
+ .name = "cmsis_dap_serial",
+ .handler = &cmsis_dap_handle_serial_command,
+ .mode = COMMAND_CONFIG,
+ .help = "set the serial number of the adapter",
+ .usage = "serial_string",
+ },
COMMAND_REGISTRATION_DONE
};
diff --git a/tcl/interface/cmsis-dap.cfg b/tcl/interface/cmsis-dap.cfg
index a8ea92ec..ab5c187e 100644
--- a/tcl/interface/cmsis-dap.cfg
+++ b/tcl/interface/cmsis-dap.cfg
@@ -5,3 +5,6 @@
#
interface cmsis-dap
+
+# Optionally specify the serial number of CMSIS-DAP usb device.
+#cmsis_dap_serial 02200201E6661E601B98E3B9