Updates to STM32 OTG FS device driver

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4553 42af7a65-404d-4744-a932-0658087f49c3

arch/arm/src/stm32/chip/stm32_usbotgfs.h

@@ -447,6 +447,8 @@
 /* Core interrupt and Interrupt mask registers */
 
 #define OTGFS_GINTSTS_CMOD              (1 << 0)  /* Bit 0:  Current mode of operation */
+#  define OTGFS_GINTSTS_DEVMODE         (0)
+#  define OTGFS_GINTSTS_HOSTMODE        (OTGFS_GINTSTS_CMOD)
 #define OTGFS_GINT_MMIS                 (1 << 1)  /* Bit 1:  Mode mismatch interrupt */
 #define OTGFS_GINT_OTG                  (1 << 2)  /* Bit 2:  OTG interrupt */
 #define OTGFS_GINT_SOF                  (1 << 3)  /* Bit 3:  Start of frame */
@@ -785,8 +787,12 @@
                                                   /* Bits 5-31: Reserved, must be kept at reset value */
 /* Device all endpoints interrupt and All endpoints interrupt mask registers */
 
-#define OTGFS_DAINT_IEP(n)              (1 << (n))      /* Bits 0-15: IN endpoint interrupt bits */
-#define OTGFS_DAINT_OEP(n)              (1 << ((n)+16)) /* Bits 16-31: OUT endpoint interrupt bits */
+#define OTGFS_DAINT_IEP_SHIFT           (0)      /* Bits 0-15: IN endpoint interrupt bits */
+#define OTGFS_DAINT_IEP_MASK            (0xffff << OTGFS_DAINT_IEP_SHIFT)
+#  define OTGFS_DAINT_IEP(n)            (1 << (n))
+#define OTGFS_DAINT_OEP_SHIFT           (16)      /* Bits 16-31: OUT endpoint interrupt bits */
+#define OTGFS_DAINT_OEP_MASK            (0xffff << OTGFS_DAINT_OEP_SHIFT)
+#  define OTGFS_DAINT_OEP(n)            (1 << ((n)+16))
 
 /* Device VBUS discharge time register */
 

lib/stdlib/Make.defs

@@ -1,8 +1,8 @@
 ############################################################################
 # lib/stdlib/Make.defs
 #
-#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions

lib/stdlib/lib_abort.c

@@ -1,8 +1,8 @@
 /************************************************************************
- * lib/stdlib/abort.c
+ * lib/stdlib/lib_abort.c
  *
- *   Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *   Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -37,10 +37,13 @@
  * Included Files
  ************************************************************************/
 
+#include <nuttx/config.h>
+
 #include <stdlib.h>
+#include <pthread.h>
 
 /************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ************************************************************************/
 
 /************************************************************************
@@ -60,7 +63,7 @@
  ************************************************************************/
 
 /************************************************************************
- * Private Functionss
+ * Private Functions
  ************************************************************************/
 
 /************************************************************************
@@ -68,14 +71,51 @@
  ************************************************************************/
 
 /************************************************************************
- * Function: abort
+ * Name: Abort
  *
  * Description:
- *   The abort() function causes abnormal program termination.
- *   All open streams are closed and flushed.
+ *   The abort() first unblocks the SIGABRT signal, and then raises that
+ *   signal for the calling process. This results in the abnormal
+ *   termination of the process unless the SIGABRT signal is caught and
+ *   the signal handler does not return.
+ *
+ *   If the abort() function causes process termination, all open
+ *   streams are closed and flushed.
+ *
+ *   If the SIGABRT signal is ignored, or caught by a handler that
+ *   returns, the abort() function will still terminate the process.
+ *   It does this by restoring the default disposition for SIGABRT and
+ *   then raising the signal for a second time.
+ *
+ * Input parameters:
+ *   None
+ *
+ * Returned Value:
+ *  This function does not return,
+ *
  ************************************************************************/
 
 void abort(void)
 {
+  /* NuttX does not support standard signal functionality (like the
+   * behavior of the SIGABRT signal).  So no attempt is made to provide
+   * a conformant version of abort() at this time.  This version does not
+   * signal the calling thread all.
+   *
+   * Note that pthread_exit() is called instead of exit().  That is because
+   * we do no know if abort was called from a pthread or a normal thread
+   * (we could find out, of course).  If abort() is called from a non-pthread,
+   * then pthread_exit() should fail and fall back to call exit() anyway.
+   *
+   * If exit() is called (either below or via pthread_exit()), then exit()
+   * will flush and close all open files and terminate the thread.  If this
+   * function was called from a pthread, then pthread_exit() will complete
+   * any joins, but will not flush or close any streams.
+   */
+
+#ifdef CONFIG_DISABLE_PTHREAD
   exit(EXIT_FAILURE);
+#else
+  pthread_exit(NULL);
+#endif
 }