Move software timer defs to lib-superloop

Consolidate software-timer definitions into lib-superloop: remove lib-hal/include/softwaretimers.h, add kSoftwareTimersMax and kTimerIdNone to lib-superloop/include/superloop/softwaretimers.h, and update function declarations. Adjust lib-superloop/src/softwaretimers.cpp to use kSoftwareTimersMax (and drop the hal:: namespace) for the timer pool and bounds check. Also update common/make/gd32/Includes.mk to include the lib-superloop/superloop header path.

Author: vanvught

common/make/gd32/Includes.mk

@@ -27,7 +27,7 @@ $(call set_if_present,CONFIG_USB_DEVICE_HID,USB_DEVICE_HID)
 ifdef FREE_RTOS
 	INCLUDES+=-I../FreeRTOS/FreeRTOS-Kernel/include
 else
-	INCLUDES+=-I../lib-superloop/include
+	INCLUDES+=-I../lib-superloop/include/superloop
 endif
 
 ifdef USB_HOST

lib-hal/include/softwaretimers.h

@@ -28,9 +28,18 @@
 
 #include <cstdint>
 
+static constexpr uint32_t kSoftwareTimersMax =
+#if defined(CONFIG_HAL_TIMERS_COUNT)
+    CONFIG_HAL_TIMERS_COUNT;
+#else
+    12;
+#endif
+
 typedef int32_t TimerHandle_t;
 typedef void (*TimerCallbackFunction_t)(TimerHandle_t);
 
+inline constexpr TimerHandle_t kTimerIdNone = -1;
+
 TimerHandle_t SoftwareTimerAdd(uint32_t interval_millis, const TimerCallbackFunction_t kCallback);
 bool SoftwareTimerDelete(TimerHandle_t& id);
 bool SoftwareTimerChange(TimerHandle_t id, uint32_t interval_millis);

lib-superloop/include/superloop/softwaretimers.h

@@ -52,7 +52,7 @@ struct Timer {
     TimerCallbackFunction_t callback_function; ///< Callback invoked on expiry; must be non-null.
 };
 
-static Timer s_timers[hal::kSoftwareTimersMax]; ///< Timer storage pool.
+static Timer s_timers[kSoftwareTimersMax]; ///< Timer storage pool.
 static uint32_t s_timers_count = 0;             ///< Number of active timers (0..hal::SOFTWARE_TIMERS_MAX).
 static int32_t s_next_id = 0;                   ///< Monotonically increasing ID source (may wrap, see notes).
 static uint32_t s_timer_current = 0;            ///< bRound-robin cursor for SoftwareTimerRun().
@@ -72,7 +72,7 @@ TimerHandle_t SoftwareTimerAdd(uint32_t interval_millis, const TimerCallbackFunc
     DEBUG_ENTRY();
     DEBUG_PRINTF("s_timers_count=%u", s_timers_count);
 
-    if (s_timers_count >= hal::kSoftwareTimersMax) {
+    if (s_timers_count >= kSoftwareTimersMax) {
         Error(__func__, "Max timer limit reached");
         return -1;
     }