More apps/ related changes

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3372 7fd9a85b-ad96-42d3-883c-3090e2eb8679

4 files changed, 173 insertions, 54 deletions

diff --git a/nuttx/sched/Makefile b/nuttx/sched/Makefile
index 55dd15547b..50ef997fca 100644
--- a/nuttx/sched/Makefile
+++ b/nuttx/sched/Makefile
@@ -38,7 +38,7 @@
 ASRCS		= 
 AOBJS		= $(ASRCS:.S=$(OBJEXT))
 
-MISC_SRCS	= os_start.c get_errno_ptr.c sched_garbage.c \
+MISC_SRCS	= os_start.c os_bringup.c get_errno_ptr.c sched_garbage.c \
 		  sched_setupstreams.c sched_getfiles.c sched_getsockets.c sched_getstreams.c \
 		  sched_setupidlefiles.c sched_setuptaskfiles.c sched_setuppthreadfiles.c \
 		  sched_releasefiles.c
diff --git a/nuttx/sched/os_bringup.c b/nuttx/sched/os_bringup.c
new file mode 100644
index 0000000000..0436afec7f
--- /dev/null
+++ b/nuttx/sched/os_bringup.c
@@ -0,0 +1,167 @@
+/****************************************************************************
+ * sched/os_bringup.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * With extensions by:
+ *
+ *   Author: Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sched.h>
+#include <debug.h>
+
+#include <nuttx/init.h>
+
+#ifdef CONFIG_PAGING
+# include "pg_internal.h"
+#endif
+#ifdef CONFIG_SCHED_WORKQUEUE
+# include "work_internal.h"
+#endif
+#ifdef CONFIG_BUILTIN_APPS_NUTTX
+# include "nuttx/nuttapp.h"
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifndef CONFIG_CUSTOM_STACK
+#  define START_TASK(n,p,s,e,a) task_create(n,p,s,e,a)
+#else
+#  define START_TASK(n,p,s,e,a) task_create(n,p,e,a)
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: os_bringup
+ *
+ * Description:
+ *   Start all initial system tasks.  This does the "system bring-up" after
+ *   the conclusion of basic OS initialization.  These initial system tasks
+ *   may include:
+ *
+ *   - pg_worker:   The page-fault worker thread (only if CONFIG_PAGING is
+ *                  defined.
+ *   - work_thread: The work thread.  This general thread can be used to
+ *                  perform most any kind of queued work.  Its primary
+ *                  function is to serve as the "bottom half" of device
+ *                  drivers.
+ *
+ *   And the main application entry point.  This may be one of two different
+ *   symbols:
+ *
+ *   - user_start:  This is the default entry point used for all of the
+ *                  examples.
+ *   - CONFIG_BUILTIN_APP_START: The system can also be configured to start
+ *                  custom applications at however CONFIG_BUILTIN_APP_START
+ *                  is defined in the NuttX start-up file.
+ *                 
+ ****************************************************************************/
+
+int os_bringup(void)
+{
+   int init_taskid;
+
+  /* Start the page fill worker thread that will resolve page faults.
+   * This should always be the first thread started because it may
+   * have to resolve page faults in other threads
+   */
+
+#ifdef CONFIG_PAGING
+  svdbg("Starting paging thread\n");
+
+  g_pgworker = START_TASK("pgfill", CONFIG_PAGING_DEFPRIO,
+                          CONFIG_PAGING_STACKSIZE,
+                          (main_t)pg_worker, (const char **)NULL);
+  ASSERT(g_pgworker != ERROR);
+#endif
+
+  /* Start the worker thread that will perform misc garbage clean-up */
+
+#ifdef CONFIG_SCHED_WORKQUEUE
+  svdbg("Starting worker thread\n");
+
+  g_worker = START_TASK("work", CONFIG_SCHED_WORKPRIORITY,
+                        CONFIG_SCHED_WORKSTACKSIZE,
+                        (main_t)work_thread, (const char **)NULL);
+  ASSERT(g_worker != ERROR);
+#endif
+
+  /* Once the operating system has been initialized, the system must be
+   * started by spawning the user init thread of execution.
+   */
+
+  svdbg("Starting init thread\n");
+  
+#if defined(CONFIG_BUILTIN_APPS_NUTTX) && defined(CONFIG_BUILTIN_APP_START)
+  init_taskid = exec_nuttapp(CONFIG_BUILTIN_APP_START, (const char **)NULL);
+#else
+  init_taskid = START_TASK("init", SCHED_PRIORITY_DEFAULT,
+                           CONFIG_USERMAIN_STACKSIZE,
+                           (main_t)user_start, (const char **)NULL);
+#endif
+  ASSERT(init_taskid != ERROR);
+  return OK;
+}
+
+
diff --git a/nuttx/sched/os_internal.h b/nuttx/sched/os_internal.h
index f2cbbf863c..8cd7257b4c 100644
--- a/nuttx/sched/os_internal.h
+++ b/nuttx/sched/os_internal.h
@@ -1,7 +1,7 @@
 /****************************************************************************
  * sched/os_internal.h
  *
- *   Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -248,6 +248,7 @@ extern const tasklist_t g_tasklisttable[NUM_TASK_STATES];
  * Public Function Prototypes
  ****************************************************************************/
 
+extern int  os_bringup(void);
 extern void task_start(void);
 extern int  task_schedsetup(FAR _TCB *tcb, int priority, start_t start,
                             main_t main);
diff --git a/nuttx/sched/os_start.c b/nuttx/sched/os_start.c
index 6ca865fbc3..9b5fd4938d 100644
--- a/nuttx/sched/os_start.c
+++ b/nuttx/sched/os_start.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * sched/os_start.c
  *
- *   Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -62,12 +62,6 @@
 #include  "clock_internal.h"
 #include  "timer_internal.h"
 #include  "irq_internal.h"
-#ifdef CONFIG_PAGING
-# include "pg_internal.h"
-#endif
-#ifdef CONFIG_SCHED_WORKQUEUE
-# include "work_internal.h"
-#endif
 
 /****************************************************************************
  * Pre-processor Definitions
@@ -238,7 +232,6 @@ static FAR char g_idlename[] = "Idle Task";
 
 void os_start(void)
 {
-  int init_taskid;
   int i;
 
   slldbg("Entry\n");
@@ -451,51 +444,9 @@ void os_start(void)
 
   (void)sched_setupidlefiles(&g_idletcb);
 
-  /* Start the page fill worker thread that will resolve page faults.
-   * This should always be the first thread started because it may
-   * have to resolve page faults in other threads
-   */
-
-#ifdef CONFIG_PAGING
-#ifndef CONFIG_CUSTOM_STACK
-  g_pgworker = task_create("pgfill", CONFIG_PAGING_DEFPRIO,
-                           CONFIG_PAGING_STACKSIZE,
-                           (main_t)pg_worker, (const char **)NULL);
-#else
-  g_pgworker = task_create("pgfill", CONFIG_PAGING_DEFPRIO,
-                           (main_t)pg_worker, (const char **)NULL);
-#endif
-  ASSERT(g_pgworker != ERROR);
-#endif
-
-  /* Start the worker thread that will perform misc garbage clean-up */
-
-#ifdef CONFIG_SCHED_WORKQUEUE
-#ifndef CONFIG_CUSTOM_STACK
-  g_worker = task_create("work", CONFIG_SCHED_WORKPRIORITY,
-                         CONFIG_SCHED_WORKSTACKSIZE,
-                         (main_t)work_thread, (const char **)NULL);
-#else
-  g_worker = task_create("work", CONFIG_SCHED_WORKPRIORITY,
-                         (main_t)work_thread, (const char **)NULL);
-#endif
-  ASSERT(g_worker != ERROR);
-#endif
-
-  /* Once the operating system has been initialized, the system must be
-   * started by spawning the user init thread of execution.
-   */
+  /* Create initial tasks and bring-up the system */
 
-  sdbg("Starting init thread\n");
-#ifndef CONFIG_CUSTOM_STACK
-  init_taskid = task_create("init", SCHED_PRIORITY_DEFAULT,
-                            CONFIG_USERMAIN_STACKSIZE,
-                            (main_t)user_start, (const char **)NULL);
-#else
-  init_taskid = task_create("init", SCHED_PRIORITY_DEFAULT,
-                            (main_t)user_start, (const char **)NULL);
-#endif
-  ASSERT(init_taskid != ERROR);
+  (void)os_bringup();
 
   /* When control is return to this point, the system is idle. */