probe: hook up reset functionality to DAP commands

include/DAP_config.h

diff --git a/include/DAP_config.h b/include/DAP_config.h
index 4e2e155..f95a2a7 100755
--- a/include/DAP_config.h
+++ b/include/DAP_config.h
@@ -460,7 +460,11 @@
 \return Current status of the nRESET DAP hardware I/O pin.
 */
 __STATIC_FORCEINLINE uint32_t PIN_nRESET_IN  (void) {
+#ifdef PROBE_PIN_RESET
+  return probe_reset_level();
+#else
   return (0U);
+#endif
 }
 
 /** nRESET I/O pin: Set Output.
@@ -469,7 +473,11 @@
            - 1: release device hardware reset.
 */
 __STATIC_FORCEINLINE void     PIN_nRESET_OUT (uint32_t bit) {
-  ;
+#ifdef PROBE_PIN_RESET
+  probe_assert_reset(!!bit);
+#else
+  (void) bit;
+#endif
 }
 
 ///@}

include/board_example_config.h

diff --git a/include/board_example_config.h b/include/board_example_config.h
index 0e10ad9..74c8535 100644
--- a/include/board_example_config.h
+++ b/include/board_example_config.h
@@ -38,7 +38,7 @@
 /* Include CDC interface to bridge to target UART. Omit if not used. */
 #define PROBE_CDC_UART
 /* Target reset GPIO (active-low). Omit if not used.*/
-#define PROBE_PIN_RESET 0
+#define PROBE_PIN_RESET 1
 
 #define PROBE_SM 0
 #define PROBE_PIN_OFFSET 12

include/board_pico_config.h

diff --git a/include/board_pico_config.h b/include/board_pico_config.h
index 4c90080..dd5f766 100644
--- a/include/board_pico_config.h
+++ b/include/board_pico_config.h
@@ -35,7 +35,9 @@
 #define PROBE_PIN_SWCLK (PROBE_PIN_OFFSET + 0) // 2
 #define PROBE_PIN_SWDIO (PROBE_PIN_OFFSET + 1) // 3
 // Target reset config
+#if false
 #define PROBE_PIN_RESET 1
+#endif
 
 // UART config
 #define PICOPROBE_UART_TX 4

src/probe.c

diff --git a/src/probe.c b/src/probe.c
index 0abf9ca..8e55879 100644
--- a/src/probe.c
+++ b/src/probe.c
@@ -76,6 +76,15 @@
 #endif
 }
 
+int probe_reset_level(void)
+{
+#if defined(PROBE_PIN_RESET)
+    return gpio_get(PROBE_PIN_RESET);
+#else
+    return 0;
+#endif
+}
+
 typedef enum probe_pio_command {
     CMD_WRITE = 0,
     CMD_SKIP,

src/probe.h

diff --git a/src/probe.h b/src/probe.h
index 6b57721..76c12c8 100644
--- a/src/probe.h
+++ b/src/probe.h
@@ -46,5 +46,7 @@
 
 void probe_init(void);
 void probe_deinit(void);
+void probe_assert_reset(bool state);
+int probe_reset_level(void);
 
 #endif