STM32 GPIO fix; Fixes for PIC32 USB term example

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4241 42af7a65-404d-4744-a932-0658087f49c3

examples/README.txt

@@ -1116,6 +1116,11 @@ examples/usbterm
     built-in command.  NOTE:  This is not fully functional as of this
     writing.. It should work, but there is no mechanism in place yet
     to exit the USB terminal program and return to NSH.
+  CONFIG_EXAMPLES_USBTERM_DEVINIT - If defined, then the example will
+    call a user provided function as part of its initialization:
+       int usbterm_devinit(void);
+    And another user provided function at termination:
+       void usbterm_devuninit(void);
   CONFIG_EXAMPLES_USBTERM_BUFLEN - The size of the input and output
     buffers used for receiving data. Default 256 bytes.
 

examples/usbterm/usbterm.h

@@ -144,5 +144,30 @@ extern struct usbterm_globals_s g_usbterm;
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/
+/****************************************************************************
+ * Name:
+ *
+ * Description:
+ *   If CONFIG_EXAMPLES_USBTERM_DEVINIT is defined, then the example will
+ *   call this user provided function as part of its initialization.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
+int usbterm_devinit(void);
+#endif
+
+/****************************************************************************
+ * Name:
+ *
+ * Description:
+ *   If CONFIG_EXAMPLES_USBTERM_DEVINIT is defined, then the example will
+ *   call this user provided function as part of its termination sequeunce.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
+void usbterm_devuninit(void);
+#endif
 
 #endif /* __APPS_EXAMPLES_USBTERM_USBTERM_H */

examples/usbterm/usbterm_main.c

@@ -2,7 +2,7 @@
  * examples/usbterm/usbterm_main.c
  *
  *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *   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
@@ -167,7 +167,7 @@ FAR void *usbterm_listener(FAR void *parameter)
  ****************************************************************************/
 
 #ifdef CONFIG_EXAMPLES_USBTERM_BUILTIN
-#  define MAIN_NAME term_main
+#  define MAIN_NAME usbterm_main
 #  define MAIN_STRING "usbterm_main: "
 #else
 #  define MAIN_NAME user_start
@@ -179,6 +179,20 @@ int MAIN_NAME(int argc, char *argv[])
   pthread_attr_t attr;
   int ret;
 
+  /* Initialization of the USB hardware may be performed by logic external to
+   * this test.
+   */
+
+#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
+  message(MAIN_STRING "Performing external device initialization\n");
+  ret = usbterm_devinit();
+  if (ret != OK)
+    {
+      message(MAIN_STRING "usbterm_devinit failed: %d\n", ret);
+      goto errout;
+    }
+#endif
+
   /* Initialize the USB serial driver */
 
   message(MAIN_STRING "Registering USB serial driver\n");
@@ -190,7 +204,7 @@ int MAIN_NAME(int argc, char *argv[])
   if (ret < 0)
     {
       message(MAIN_STRING "ERROR: Failed to create the USB serial device: %d\n", -ret);
-      goto errout;
+      goto errout_with_devinit;
     }
   message(MAIN_STRING "Successfully registered the serial driver\n");
 
@@ -231,7 +245,7 @@ int MAIN_NAME(int argc, char *argv[])
             {
               /* Give up on other errors */
 
-              goto errout;
+              goto errout_with_devinit;
             }
         }
 
@@ -308,7 +322,11 @@ errout_with_streams:
   fclose(g_usbterm.instream);
 errout_with_outstream:
   fclose(g_usbterm.outstream);
+errout_with_devinit:
+#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
+  usbterm_devuninit();
 errout:
+#endif
   message(MAIN_STRING "       Aborting\n");
   return 1;
 }