Make STM compile again and update toolchain. (#2960)

* Make STM compile again and update toolchain. The binary is too big for the flash. WIP

* Making progress with OSFS, still WIP

* more progress, still too big. Adding RAK3172 to the equasion

* Make STM compile again and update toolchain. The binary is too big for the flash. WIP

* Making progress with OSFS, still WIP

* more progress, still too big. Adding RAK3172 to the equasion

* still too big

* minimize build

* trunk fmt

* fix a couple of symbol clashes

* trunk fmt

* down to 101% with a release vs. debug build and omitting the flash strings

* fix compilation

* fix compilation once more

* update protobufs linkage

* - Toolchain updated
- Fixed macro error

* silence compiler warning
note: do something about this assert...

* new toolkit and fix Power.cpp

* STM32WL make it fit (#4330)

* Add option to exclude I2C parts

The I2C hals and related code uses a significant amount of flash space and aren't required for a basic node.

* Add option to disable Admin and NodeInfo modules

Disabled by default in minimal build. This saves a significant amount of flash

* Disable unused hals

These use up significant flash

* Add float support for printf for debugging

Makes serial look nice for debugging

* This breaks my build for some reason

* These build flags can save a bit of flash

* Don't disable NodeInfo and Admin modules in minimal build

They fit in flash

* Don't include printf float support by default

Only useful for debugging

---------

Co-authored-by: Adam Lawson <dev@goshawk22.uk>

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Adam Lawson <dev@goshawk22.uk>

src/main.cpp

@@ -20,7 +20,11 @@
 #include "concurrency/OSThread.h"
 #include "concurrency/Periodic.h"
 #include "detect/ScanI2C.h"
+
+#if !MESHTASTIC_EXCLUDE_I2C
 #include "detect/ScanI2CTwoWire.h"
+#include <Wire.h>
+#endif
 #include "detect/axpDebug.h"
 #include "detect/einkScan.h"
 #include "graphics/RAKled.h"
@@ -31,7 +35,6 @@
 #include "shutdown.h"
 #include "sleep.h"
 #include "target_specific.h"
-#include <Wire.h>
 #include <memory>
 #include <utility>
 // #include <driver/rtc_io.h>
@@ -159,8 +162,10 @@ bool pauseBluetoothLogging = false;
 
 bool pmu_found;
 
+#if !MESHTASTIC_EXCLUDE_I2C
 // Array map of sensor types with i2c address and wire as we'll find in the i2c scan
 std::pair<uint8_t, TwoWire *> nodeTelemetrySensorsMap[_meshtastic_TelemetrySensorType_MAX + 1] = {};
+#endif
 
 Router *router = NULL; // Users of router don't care what sort of subclass implements that API
 
@@ -349,6 +354,7 @@ void setup()
 
 #endif
 
+#if !MESHTASTIC_EXCLUDE_I2C
 #if defined(I2C_SDA1) && defined(ARCH_RP2040)
     Wire1.setSDA(I2C_SDA1);
     Wire1.setSCL(I2C_SCL1);
@@ -373,6 +379,7 @@ void setup()
 #elif HAS_WIRE
     Wire.begin();
 #endif
+#endif
 
 #ifdef PIN_LCD_RESET
     // FIXME - move this someplace better, LCD is at address 0x3F
@@ -405,6 +412,7 @@ void setup()
     powerStatus->observe(&power->newStatus);
     power->setup(); // Must be after status handler is installed, so that handler gets notified of the initial configuration
 
+#if !MESHTASTIC_EXCLUDE_I2C
     // We need to scan here to decide if we have a screen for nodeDB.init() and because power has been applied to
     // accessories
     auto i2cScanner = std::unique_ptr<ScanI2CTwoWire>(new ScanI2CTwoWire());
@@ -560,6 +568,7 @@ void setup()
     SCANNER_TO_SENSORS_MAP(ScanI2C::DeviceType::DFROBOT_LARK, meshtastic_TelemetrySensorType_DFROBOT_LARK)
 
     i2cScanner.reset();
+#endif
 
 #ifdef HAS_SDCARD
     setupSDCard();
@@ -620,6 +629,7 @@ void setup()
     screen_model = meshtastic_Config_DisplayConfig_OledType_OLED_SH1107; // keep dimension of 128x64
 #endif
 
+#if !MESHTASTIC_EXCLUDE_I2C
 #if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
     if (acc_info.type != ScanI2C::DeviceType::NONE) {
         config.display.wake_on_tap_or_motion = true;
@@ -635,6 +645,7 @@ void setup()
         ambientLightingThread = new AmbientLightingThread(rgb_found.type);
     }
 #endif
+#endif
 
 #ifdef T_WATCH_S3
     drv.begin();
@@ -721,6 +732,7 @@ void setup()
         RECORD_CRITICALERROR(meshtastic_CriticalErrorCode_NO_AXP192); // Record a hardware fault for missing hardware
 #endif
 
+#if !MESHTASTIC_EXCLUDE_I2C
 // Don't call screen setup until after nodedb is setup (because we need
 // the current region name)
 #if defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ST7789_CS) || defined(HX8357_CS) ||            \
@@ -733,6 +745,7 @@ void setup()
 #else
     if (screen_found.port != ScanI2C::I2CPort::NO_I2C)
         screen->setup();
+#endif
 #endif
 
     screen->print("Started...\n");