fix return type of enable/disable interrupt methods... add host versions for completeness (#2310)

Author: kilograham

src/host/hardware_sync/include/hardware/sync.h

@@ -121,6 +121,10 @@ void restore_interrupts(uint32_t status);
 
 void restore_interrupts_from_disabled(uint32_t status);
 
+void disable_interrupts(void);
+
+void enable_interrupts(void);
+
 uint spin_lock_get_num(spin_lock_t *lock);
 
 spin_lock_t *spin_lock_instance(uint lock_num);

src/host/hardware_sync/sync_core0_only.c

@@ -31,6 +31,15 @@ PICO_WEAK_FUNCTION_DEF(restore_interrupts_from_disabled)
 void PICO_WEAK_FUNCTION_IMPL_NAME(restore_interrupts_from_disabled)(uint32_t status) {
 }
 
+PICO_WEAK_FUNCTION_DEF(disable_interrupts)
+
+void PICO_WEAK_FUNCTION_IMPL_NAME(disable_interrupts)(void) {
+}
+
+PICO_WEAK_FUNCTION_DEF(enable_interrupts)
+
+void PICO_WEAK_FUNCTION_IMPL_NAME(enable_interrupts)(void) {
+}
 
 PICO_WEAK_FUNCTION_DEF(spin_lock_instance)
 

src/rp2_common/hardware_sync/include/hardware/sync.h

@@ -201,7 +201,7 @@ __force_inline static void __mem_fence_release(void) {
 /*! \brief Explicitly disable interrupts on the calling core
  *  \ingroup hardware_sync
  */
-__force_inline static uint32_t disable_interrupts(void) {
+__force_inline static void disable_interrupts(void) {
 #ifdef __riscv
     __compiler_memory_barrier();
     riscv_clear_csr(mstatus, 8);
@@ -214,7 +214,7 @@ __force_inline static uint32_t disable_interrupts(void) {
 /*! \brief Explicitly enable interrupts on the calling core
  *  \ingroup hardware_sync
  */
-__force_inline static uint32_t enable_interrupts(void) {
+__force_inline static void enable_interrupts(void) {
 #ifdef __riscv
     __compiler_memory_barrier();
     riscv_set_csr(mstatus, 8);