sim: add "nimble" config, to test nimBLE on top of bthcisock

boards/sim/sim/sim/README.txt

@@ -692,6 +692,39 @@ nettest
      "target" (CONFIG_EXAMPLES_NETTEST_*) or edit up_wpcap.c to select the IP
      address that you want to use.
 
+nimble
+
+  This is similar to bthcisock configuration, which uses the exposes the real
+  BLE stack to NuttX, but disables NuttX's own BLE stack and uses nimBLE stack
+  instead (built in userspace).
+
+  This configuration can be tested by running nimBLE example application "nimble"
+  as follows:
+
+    $ sudo setcap 'cap_net_raw,cap_net_admin=eip' nuttx
+    $ ./nuttx
+    NuttShell (NSH) NuttX-9.1.0
+    nsh> ifup bnep0
+    ifup bnep0...OK
+    nsh> nimble
+    hci init
+    port init
+    gap init
+    gatt init
+    ans init
+    ias init
+    lls init
+    tps init
+    hci_sock task init
+    ble_host task init
+    hci sock task
+    host task
+    advertise
+
+  At this point you should be able to detect a "nimble" BLE device when scanning
+  for BLE devices. You can use nRFConnect Android application from Nordic to connect
+  and inspect exposed GATT services.
+
 nsh
 
   Configures to use the NuttShell at apps/examples/nsh.

boards/sim/sim/sim/configs/nimble/defconfig

@@ -0,0 +1,80 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NET_ETHERNET is not set
+# CONFIG_NET_IPv4 is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_WIRELESS_BLUETOOTH_HOST is not set
+CONFIG_ARCH="sim"
+CONFIG_ARCH_BOARD="sim"
+CONFIG_ARCH_BOARD_SIM=y
+CONFIG_ARCH_CHIP="sim"
+CONFIG_ARCH_SIM=y
+CONFIG_BLUETOOTH_MAX_CONN=2
+CONFIG_BLUETOOTH_MAX_PAIRED=2
+CONFIG_BLUETOOTH_SMP_SELFTEST=y
+CONFIG_BOARDCTL_POWEROFF=y
+CONFIG_BOARD_LOOPSPERMSEC=0
+CONFIG_BOOT_RUNFROMEXTSRAM=y
+CONFIG_BUILTIN=y
+CONFIG_CLOCK_MONOTONIC=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_LOOP=y
+CONFIG_DEV_ZERO=y
+CONFIG_DRIVERS_BLUETOOTH=y
+CONFIG_DRIVERS_WIRELESS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FSUTILS_PASSWD=y
+CONFIG_FSUTILS_PASSWD_READONLY=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_ROMFS=y
+CONFIG_IDLETHREAD_STACKSIZE=4096
+CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LIB_ENVPATH=y
+CONFIG_LIB_HOSTNAME="NuttX-SIM"
+CONFIG_MAX_TASKS=64
+CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_NETDEV_LATEINIT=y
+CONFIG_NETDEV_WIRELESS_IOCTL=y
+CONFIG_NETINIT_NETLOCAL=y
+CONFIG_NET_BLUETOOTH=y
+CONFIG_NET_STATISTICS=y
+CONFIG_NFILE_DESCRIPTORS=32
+CONFIG_NIMBLE=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_ARCHROMFS=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FATDEVNO=2
+CONFIG_NSH_FILE_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_ROMFSDEVNO=1
+CONFIG_NSH_ROMFSETC=y
+CONFIG_PATH_INITIAL="/bin"
+CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=2048
+CONFIG_PREALLOC_MQ_MSGS=64
+CONFIG_PTHREAD_MUTEX_TYPES=y
+CONFIG_READLINE_TABCOMPLETION=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_HAVE_PARENT=y
+CONFIG_SCHED_ONEXIT=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_SIG_DEFAULT=y
+CONFIG_SIG_EVTHREAD=y
+CONFIG_SIG_PIPE=11
+CONFIG_SIM_HCISOCKET=y
+CONFIG_START_DAY=3
+CONFIG_START_MONTH=4
+CONFIG_SYSTEM_NSH=y
+CONFIG_USERMAIN_STACKSIZE=4096
+CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_WIRELESS=y
+CONFIG_WIRELESS_BLUETOOTH=y