Integrate west manifest to facilitate Zephyr build

Add west manifest contributed by edgetriggered to allow automated
cloning of the correst Zephyr revision.
Now codec2 dependency is enabled also for T-TWR build, enabling to build
it from scratch without first building a Miosix target.
Enabled non-cross build to use codec2 compiled sources.

meson.build

@@ -121,13 +121,14 @@ minmea_inc = ['lib/minmea/include']
 # QDEC, a very simple, header only, quadrature decoding library
 qdec_inc = ['lib/qdec/include']
 
-# CODEC2, open source speech codec
+# CODEC2, open source speech codec, compile from source
-# Compile from sources only when targeting a platform different from x86/x64
+codec2_proj = subproject('codec2')
-if meson.is_cross_build()
+codec2_dep  = codec2_proj.get_variable('codec2_dep')
-  codec2_proj = subproject('codec2')
+
-  codec2_dep  = codec2_proj.get_variable('codec2_dep')
+# For linux we link against system library
-else
+if not meson.is_cross_build()
-  codec2_dep  = dependency('codec2')
+  cpp = meson.get_compiler('cpp')
+  codec2_shared_dep = cpp.find_library('codec2')
 endif
 
 # XPowersLib, Arduino,CircuitPython,Micropython, esp-idf library for x-powers power management series
@@ -303,10 +304,10 @@ linux_inc  = inc + ['platform/targets/linux',
                     'platform/targets/linux/emulator']
 
 if not meson.is_cross_build()
-  sdl_dep = dependency('SDL2')
+  sdl_dep = dependency('SDL2', required: false)
-  threads_dep = dependency('threads')
+  threads_dep = dependency('threads', required: false)
-  pulse_dep = dependency('libpulse')
+  pulse_dep = dependency('libpulse', required: false)
-  linux_dep = [sdl_dep, threads_dep, pulse_dep, codec2_dep]
+  linux_dep = [sdl_dep, threads_dep, pulse_dep, codec2_shared_dep]
 else
   linux_dep = [ ]
 endif

openrtx/src/core/audio_codec.c

@@ -22,7 +22,12 @@
 #include <audio_codec.h>
 #include <pthread.h>
 #include <threads.h>
+// codec2 system library has a weird include prefix
+#if defined(PLATFORM_LINUX)
+#include <codec2/codec2.h>
+#else
 #include <codec2.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>

subprojects/codec2.wrap

@@ -2,3 +2,6 @@
 url = https://github.com/drowe67/codec2-dev
 revision = a298f3789d7ef9e829049ebe14da8845d97ba8c1
 patch_directory = codec2
+
+[provide]
+dependency_names = codec2

west.yml

@@ -0,0 +1,28 @@
+manifest:
+  self:
+    path: OpenRTX
+
+  defaults:
+    remote: zephyr
+
+  remotes:
+    - name: zephyr
+      url-base: https://github.com/zephyrproject-rtos
+
+  projects:
+    - name: zephyr
+      revision: a4de2eb3d1756c445d2e2ecb72e6d562674c118b
+      path: zephyr
+      west-commands: scripts/west-commands.yml
+      import: submanifests
+
+    - name: mcuboot
+      revision: 9bf7ce8c5fe8152836a6e00bd4444153bd950342
+      path: bootloader/mcuboot
+
+    - name: hal_espressif
+      revision: 80d910ca89eab9bce03f59a4ade33f1fc30ce0ad
+      path: modules/hal/espressif
+      west-commands: west/west-commands.yml
+      groups:
+        - hal