extmod/nimble: Do not set GAP device name after sync.

Instead, configure the default once at compile-time. This means the GAP
name will no longer be set to default after re-initializing Bluetooth.

Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>

Author: DvdGiessen

extmod/nimble/modbluetooth_nimble.c

@@ -53,10 +53,6 @@
 #include "nimble/host/src/ble_hs_hci_priv.h"
 #endif
 
-#ifndef MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME
-#define MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME "MPY NIMBLE"
-#endif
-
 #define DEBUG_printf(...) // printf("nimble: " __VA_ARGS__)
 
 #define ERRNO_BLUETOOTH_NOT_ACTIVE MP_ENODEV
@@ -350,9 +346,6 @@ STATIC void sync_cb(void) {
         assert(rc == 0);
     }
 
-    DEBUG_printf("sync_cb: Setting device name\n");
-    ble_svc_gap_device_name_set(MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME);
-
     mp_bluetooth_nimble_ble_state = MP_BLUETOOTH_NIMBLE_BLE_STATE_ACTIVE;
 }
 

extmod/nimble/syscfg/syscfg.h

@@ -134,7 +134,11 @@ int nimble_sprintf(char *str, const char *fmt, ...);
 #define MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE (0)
 #define MYNEWT_VAL_BLE_SVC_GAP_APPEARANCE_WRITE_PERM (-1)
 #define MYNEWT_VAL_BLE_SVC_GAP_CENTRAL_ADDRESS_RESOLUTION (-1)
-#define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME ("pybd")
+#ifdef MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME
+#define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME (MICROPY_PY_BLUETOOTH_DEFAULT_GAP_NAME)
+#else
+#define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME ("MPY NIMBLE")
+#endif
 #define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH (31)
 #define MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_WRITE_PERM (-1)
 #define MYNEWT_VAL_BLE_SVC_GAP_PPCP_MAX_CONN_INTERVAL (0)

ports/esp32/boards/sdkconfig.ble

@@ -3,6 +3,8 @@ CONFIG_BT_ENABLED=y
 CONFIG_BT_NIMBLE_ENABLED=y
 CONFIG_BT_CONTROLLER_ENABLED=y
 
+CONFIG_BT_NIMBLE_SVC_GAP_DEVICE_NAME="MPY ESP32"
+
 CONFIG_BT_NIMBLE_MAX_CONNECTIONS=4
 
 # Put NimBLE on core 1, and for synchronisation