- change OSAL_TASK_FUNCTION to have void* parameter (to be consistent with most popular RTOS)

- add new error enum TUSB_ERROR_OSAL_TASK_CREATE_FAILED
- move usbh_enumeration_task prototype to usbh.h
- change OSAL_SUBTASK_INVOKED_AND_WAIT behavior, will not "return" in calling task when subtask got error status.
calling task need to do that after the call
- osal_queue_receive signature from uint32_t* to void*

- implement osal_freertos.h for FreeRTOS 7.3 --> able to compile & build host_freertos
+ OSAL_TASK_FUNCTION
+ turn on FPU for M4 in both host_os_none & host_freertos (freertos requires FPU to be on to compile)
+ osal_task_create
+ OSAL_SUBTASK_INVOKED_AND_WAIT
+ SUBTASK_ASSERT
+ osal_semaphore_reset
+ osal_queue_flush
+ adding heap_1.c for memory management

demos/host/src/keyboard_app.c

@@ -97,7 +97,7 @@ void keyboard_app_init(void)
 }
 
 //------------- main task -------------//
-OSAL_TASK_FUNCTION( keyboard_app_task )
+OSAL_TASK_FUNCTION( keyboard_app_task ) (void* p_task_para)
 {
   tusb_error_t error;
   tusb_keyboard_report_t kbd_report;

demos/host/src/keyboard_app.h

@@ -63,7 +63,7 @@
 
 
 void keyboard_app_init(void);
-OSAL_TASK_FUNCTION( keyboard_app_task );
+OSAL_TASK_FUNCTION( keyboard_app_task ) (void* p_task_para);
 
 #ifdef __cplusplus
  }

demos/host/src/main.c

@@ -33,9 +33,12 @@ int main(void)
 
   while (1)
   {
+
+#if TUSB_CFG_OS == TUSB_OS_NONE
     tusb_task_runner();
-    keyboard_app_task();
-    mouse_app_task();
+    keyboard_app_task(NULL);
+    mouse_app_task(NULL);
+#endif
 
     if (current_tick + CFG_TICKS_PER_SECOND < system_ticks)
     {

demos/host/src/mouse_app.c

@@ -96,7 +96,7 @@ void mouse_app_init(void)
 }
 
 //------------- main task -------------//
-OSAL_TASK_FUNCTION( mouse_app_task )
+OSAL_TASK_FUNCTION( mouse_app_task ) (void* p_task_para)
 {
   tusb_error_t error;
   tusb_mouse_report_t mouse_report;

demos/host/src/mouse_app.h

@@ -62,7 +62,7 @@
 #endif
 
 void mouse_app_init(void);
-OSAL_TASK_FUNCTION( mouse_app_task );
+OSAL_TASK_FUNCTION( mouse_app_task ) (void* p_task_para);
 
 #ifdef __cplusplus
  }