bl00mbox: migration

bl00mbox and radspa have grown up. It is time for them to
gain independence in their very own repositories.

Check out gitlab.com/moon2embeddedaudio for future updates
or contributing.

We will continue to push updates to the flow3r project and
add hardware-specific features.

We see no reason to submodule it right away, but if it is
preferable for the flow3r firmware repo we're open to it.

Thanks for all the support and kind words, we'll try our
best to polish all the rough spots and add a ton of plugins
and features :D!

components/bl00mbox/CMakeLists.txt

@@ -30,6 +30,4 @@ idf_component_register(
         plugins/bl00mbox
         radspa
         extern
-    REQUIRES
-        st3m
 )

components/bl00mbox/README.md

+Hi! bl00mbox/radspa is an external project. To find out more or contribute check out https://gitlab.com/moon2embeddedaudio

components/bl00mbox/bl00mbox.c

@@ -2,10 +2,8 @@
 #include "bl00mbox.h"
 #include "bl00mbox_plugin_registry.h"
 #include "bl00mbox_audio.h"
-#include "st3m_audio.h"
 
 void bl00mbox_init(){
     bl00mbox_plugin_registry_init();
-    st3m_audio_set_player_function(bl00mbox_audio_render);
     bl00mbox_channels_init();
 }

components/bl00mbox/bl00mbox_audio.c

@@ -246,14 +246,7 @@ void bl00mbox_audio_render(int16_t * rx, int16_t * tx, uint16_t len){
 #endif
 
     for(uint16_t i = 0; i < mono_len; i++){
-        st3m_scope_write((acc[i])>>4);
-
         tx[2*i] = acc[i];
         tx[2*i+1] = acc[i];
     }
 }
-
-// TEMP
-void bl00mbox_player_function(int16_t * rx, int16_t * tx, uint16_t len){
-    bl00mbox_audio_render(rx, tx, len);
-}

components/bl00mbox/include/bl00mbox_audio.h

 //SPDX-License-Identifier: CC0-1.0
 #pragma once
 
-//TODO: move this to kconfig someday
-#define BL00MBOX_MAX_BUFFER_LEN 256
-#define BL00MBOX_DEFAULT_CHANNEL_VOLUME 3000
+//TODO: move this to kconfig someday?
+#define BL00MBOX_MAX_BUFFER_LEN 128
+#define BL00MBOX_DEFAULT_CHANNEL_VOLUME 8000
 #define BL00MBOX_CHANNELS 32
 #define BL00MBOX_BACKGROUND_MUTE_OVERRIDE_ENABLE
 
-//TODO: remove st3m scope dependency
-#include "st3m_audio.h"
-#include "st3m_scope.h"
-
 #include <stdio.h>
 #include <math.h>
 #include <string.h>

components/st3m/st3m_audio.c

 #include "st3m_audio.h"
+#include "st3m_scope.h"
 
 #include <math.h>
 #include <stdio.h>
@@ -320,6 +321,9 @@ static void _audio_player_task(void *data) {
         UNLOCK;
 
         (*function)(buffer_rx, buffer_tx, FLOW3R_BSP_AUDIO_DMA_BUFFER_SIZE * 2);
+        for (uint16_t i = 0; i < FLOW3R_BSP_AUDIO_DMA_BUFFER_SIZE; i++) {
+            st3m_scope_write(buffer_tx[2 * i] >> 2);
+        }
 
         if (!hwmute && software_mute) {
             // Software muting needed. Only used on P1.

main/main.c

@@ -131,6 +131,7 @@ void flow3r_startup(void) {
     st3m_scope_init();
     st3m_audio_init();
     bl00mbox_init();
+    st3m_audio_set_player_function(bl00mbox_audio_render);
     st3m_badgenet_init();
 
     st3m_mode_set(st3m_mode_kind_starting, "micropython");