diff options
Diffstat (limited to 'nuttx/arch/x86/src/common/up_internal.h')
| -rw-r--r-- | nuttx/arch/x86/src/common/up_internal.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/nuttx/arch/x86/src/common/up_internal.h b/nuttx/arch/x86/src/common/up_internal.h index df43ca1a8..c27717c38 100644 --- a/nuttx/arch/x86/src/common/up_internal.h +++ b/nuttx/arch/x86/src/common/up_internal.h @@ -1,7 +1,7 @@ /**************************************************************************** * arch/x86/src/common/up_internal.h * - * Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. + * Copyright (C) 2011-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -62,7 +62,10 @@ #undef CONFIG_SUPPRESS_UART_CONFIG /* DEFINED: Do not reconfig UART */ #undef CONFIG_DUMP_ON_EXIT /* DEFINED: Dump task state on exit */ -/* Determine which (if any) console driver to use */ +/* Determine which (if any) console driver to use. If a console is enabled + * and no other console device is specified, then a serial console is + * assumed. + */ #if !defined(CONFIG_DEV_CONSOLE) || CONFIG_NFILE_DESCRIPTORS <= 0 # undef USE_SERIALDRIVER @@ -83,6 +86,16 @@ # endif #endif +/* If some other device is used as the console, then the serial driver may + * still be needed. Let's assume that if the upper half serial driver is + * built, then the lower half will also be needed. There is no need for + * the early serial initialization in this case. + */ + +#if !defined(USE_SERIALDRIVER) && defined(CONFIG_STANDARD_SERIAL) +# define USE_SERIALDRIVER 1 +#endif + /* Determine which device to use as the system logging device */ #ifndef CONFIG_SYSLOG |