Add W25 FLASH driver; Use attribute definitions in nuttx/compiler.h

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@5161 7fd9a85b-ad96-42d3-883c-3090e2eb8679

nuttx/include/nuttx/analog/adc.h

@@ -47,6 +47,7 @@
  ************************************************************************************/
 
 #include <nuttx/config.h>
+#include <nuttx/compiler.h>
 
 #include <sys/types.h>
 #include <stdint.h>
@@ -78,7 +79,7 @@ struct adc_msg_s
 {
   uint8_t      am_channel;               /* The 8-bit ADC Channel */
   int32_t      am_data;                  /* ADC convert result (4 bytes) */
-} __attribute__((__packed__));
+} packed_struct;
 
 struct adc_fifo_s
 {

nuttx/include/nuttx/compiler.h

@@ -1,7 +1,7 @@
 /****************************************************************************
  * include/nuttx/compiler.h
  *
- *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -92,6 +92,14 @@
 # define reentrant_function
 # define naked_function
 
+/* The inline_function attribute informs GCC that the function should always
+ * be inlined, regardless of the level of optimization.  The noinline_function
+ * indicates that the function should never be inlined.
+ */
+
+# define inline_function __attribute__ ((always_inline))
+# define noinline_function __attribute__ ((noinline))
+
 /* GCC has does not use storage classes to qualify addressing */
 
 # define FAR
@@ -224,10 +232,15 @@
 # define noreturn_function
 # define packed_struct
 
-/* SDCC does support "naked" function s*/
+/* SDCC does support "naked" functions */
 
 # define naked_function __naked
 
+/* SDCC does not support forced inlining. */
+
+# define inline_function
+# define noinline_function
+
 /* The reentrant attribute informs SDCC that the function
  * must be reentrant.  In this case, SDCC will store input
  * arguments on the stack to support reentrancy.
@@ -320,11 +333,13 @@
 # define weak_function
 # define weak_const_function
 
-/* The Zilog compiler does not support the noreturn, packed, or naked attributes */
+/* The Zilog compiler does not support the noreturn, packed, naked attributes */
 
 # define noreturn_function
 # define packed_struct
 # define naked_function
+# define inline_function
+# define noinline_function
 
 /* The Zilog compiler does not support the reentrant attribute */
 
@@ -406,7 +421,8 @@
 # define packed_struct
 # define reentrant_function
 # define naked_function
-
+# define inline_function
+# define noinline_function
 
 # define FAR
 # define NEAR

nuttx/include/nuttx/mtd.h

@@ -220,6 +220,19 @@ EXTERN FAR struct mtd_dev_s *at24c_initialize(FAR struct i2c_dev_s *dev);
 
 EXTERN FAR struct mtd_dev_s *sst25_initialize(FAR struct spi_dev_s *dev);
 
+
+/****************************************************************************
+ * Name: w25_initialize
+ *
+ * Description:
+ *   Create an initialized MTD device instance.  MTD devices are not registered
+ *   in the file system, but are created as instances that can be bound to
+ *   other functions (such as a block or character driver front end).
+ *
+ ****************************************************************************/
+
+EXTERN FAR struct mtd_dev_s *w25_initialize(FAR struct spi_dev_s *dev);
+
 #undef EXTERN
 #ifdef __cplusplus
 }