hosted/jlink: add extra interface strings

From libjaylink

src/platforms/hosted/jlink.c

@@ -256,6 +256,18 @@ static char *jlink_interface_to_string(const uint8_t interface)
  return "JTAG";
  case JLINK_INTERFACE_SWD:
  return "SWD";
+ case JLINK_INTERFACE_BDM3:
+ return "BDM3";
+ case JLINK_INTERFACE_FINE:
+ return "FINE";
+ case JLINK_INTERFACE_2W_JTAG_PIC32:
+ return "PIC32 2-wire JTAG";
+ case JLINK_INTERFACE_SPI:
+ return "SPI";
+ case JLINK_INTERFACE_C2:
+ return "C2";
+ case JLINK_INTERFACE_CJTAG:
+ return "cJTAG";
  default:
  return "Unknown";
  }

src/platforms/hosted/jlink_protocol.h

@@ -290,6 +290,13 @@
 #define JLINK_INTERFACE_MAX 32U
 #define JLINK_INTERFACE_JTAG 0U
 #define JLINK_INTERFACE_SWD 1U
+/* The following interfaces were obtained from libjaylink, with no official documentation to back them up */
+#define JLINK_INTERFACE_BDM3 2U /* Background Debug Mode 3 (BDM3) */
+#define JLINK_INTERFACE_FINE 3U /* Renesas’ single-wire debug interface (FINE) */
+#define JLINK_INTERFACE_2W_JTAG_PIC32 4U /* 2-wire JTAG for PIC32 compliant devices */
+#define JLINK_INTERFACE_SPI 5U /* Serial Peripheral Interface (SPI) */
+#define JLINK_INTERFACE_C2 6U /* Silicon Labs 2-wire interface (C2) */
+#define JLINK_INTERFACE_CJTAG 7U /* Compact JTAG (cJTAG) */
 
 /* Kickstart power - JLINK_CMD_POWER_SET_KICKSTART */
 #define JLINK_POWER_KICKSTART_ENABLE 0x01U /* Set Kickstart power on */