Remove unused header files; eliminate warnings

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3731 42af7a65-404d-4744-a932-0658087f49c3

8 files changed, 44 insertions, 455 deletions

diff --git a/apps/nshlib/nsh.h b/apps/nshlib/nsh.h
index fb3b35120..6f499a749 100644
--- a/apps/nshlib/nsh.h
+++ b/apps/nshlib/nsh.h
@@ -331,7 +331,7 @@ extern int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline);
 
 #ifdef CONFIG_NSH_BUILTIN_APPS
 extern int nsh_execapp(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd,
-                       FAR char *argv[]);
+                       FAR char **argv);
 #endif
 
 /* Working directory support */
diff --git a/apps/nshlib/nsh_apps.c b/apps/nshlib/nsh_apps.c
index ec3d6ec88..d70c0d10f 100644
--- a/apps/nshlib/nsh_apps.c
+++ b/apps/nshlib/nsh_apps.c
@@ -87,13 +87,13 @@
  ****************************************************************************/
 
 int nsh_execapp(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd,
-                FAR char *argv[])
+                FAR char **argv)
 {
    int ret = OK;
 
    /* Try to find command within pre-built application list. */
 
-   ret = exec_namedapp(cmd, argv);
+   ret = exec_namedapp(cmd, (FAR const char **)argv);
    if (ret < 0)
      {
        return -errno;
diff --git a/apps/vsn/ramtron/ramtron.c b/apps/vsn/ramtron/ramtron.c
index 2f0479e13..0a648cc30 100644
--- a/apps/vsn/ramtron/ramtron.c
+++ b/apps/vsn/ramtron/ramtron.c
@@ -47,6 +47,7 @@
 #include <nuttx/spi.h>
 #include <nuttx/mtd.h>
 
+FAR struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev);
 
 int ramtron_start(int spino)
 {
diff --git a/apps/vsn/sdcard/sdcard.c b/apps/vsn/sdcard/sdcard.c
index 2f6c44f89..47f6c728c 100644
--- a/apps/vsn/sdcard/sdcard.c
+++ b/apps/vsn/sdcard/sdcard.c
@@ -48,6 +48,9 @@
 #  include <nuttx/mmcsd.h>
 #endif
 
+FAR struct sdio_dev_s *sdio_initialize(int slotno);
+void sdio_mediachange(FAR struct sdio_dev_s *dev, bool cardinslot);
+
 // TODO get the structure out from the slot number
 static FAR struct sdio_dev_s *sdio = NULL;
 
@@ -107,12 +110,14 @@ int sdcard_main(int argc, char *argv[])
         }
         else if (!strcmp(argv[1], "insert")) {
             if (sdio) {
-                return sdio_mediachange(sdio, true);
+                sdio_mediachange(sdio, true);
+                return OK;
             }
         }
         else if (!strcmp(argv[1], "eject")) {
             if (sdio) {
-                return sdio_mediachange(sdio, false);
+                sdio_mediachange(sdio, false);
+                return OK;
             }
         }
         else if (!strcmp(argv[1], "status")) {
diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html
index 52bd5b177..01c8937cb 100644
--- a/nuttx/Documentation/NuttX.html
+++ b/nuttx/Documentation/NuttX.html
@@ -1630,6 +1630,30 @@
 <tr>
   <td><br></td>
   <td>
+    <p><b>AVR-Specific Issues</b>.
+      The basic AVR port is solid and biggest issue for using AVR is its tiny SRAM memory and its Harvard architecture.
+      Because of the Harvard architecture, constant data that resides to flash is inaccessible using &quot;normal&quot; memory reads and writes (only SRAM data can be accessed &quot;normally&quot;).
+      Special AVR instructions are available for accessing data in FLASH, but these have not been integrated into the normal, general purpose OS.
+    </p>
+    <p>
+      Most NuttX test applications are console-oriented with lots of strings used for printf and debug output.
+      These strings are all stored in SRAM now due to these data accessing issues and even the smallest console-oriented applications can quickly fill a 4-8Kb memory.
+      So, in order for the AVR port to be useful, one of two things would need to be done:
+    </p>
+    <ol>
+      <li>
+        Don't use console applications that required lots of strings.
+        The basic AVR port is solid and your typical deeply embedded application should work fine.
+        Or,
+      </li>
+      <li>
+        Create a special version of printf that knows how to access strings that reside in FLASH (or EEPROM).
+      </li>
+    </ol>
+</tr>
+<tr>
+  <td><br></td>
+  <td>
       <p>
         <b>Development Environments:</b>
         1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin with Windows native toolchain. 
diff --git a/nuttx/configs/vsn/src/vsn.h b/nuttx/configs/vsn/src/vsn.h
index 6a41b6bc1..0b1d5dbc3 100644
--- a/nuttx/configs/vsn/src/vsn.h
+++ b/nuttx/configs/vsn/src/vsn.h
@@ -210,13 +210,21 @@ extern void weak_function stm32_spiinitialize(void);
 
 extern void weak_function stm32_usbinitialize(void);
 
-
 /************************************************************************************
  * Init Power Module and set board system voltage
  ************************************************************************************/
 
 extern void board_power_init(void);
 
+/************************************************************************************
+ * Name: sysclock_select_hsi
+ *
+ * Description:
+ *   Selects internal HSI Clock, SYSCLK = 36 MHz, HCLK = 36 MHz.
+ *
+ ************************************************************************************/
+
+extern void sysclock_select_hsi(void);
 
 #endif /* __ASSEMBLY__ */
 #endif /* __CONFIGS_VSN_SRC_VSN_INTERNAL_H */
diff --git a/nuttx/include/nuttx/event.h b/nuttx/include/nuttx/event.h
deleted file mode 100755
index 0435f61e3..000000000
--- a/nuttx/include/nuttx/event.h
+++ /dev/null
@@ -1,256 +0,0 @@
-/****************************************************************************
- * include/nuttx/event.h
- *
- *   Copyright(C) 2011 Uros Platise. All rights reserved.
- *   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.
- *
- ****************************************************************************/
-
-/** \file
- *  \author Uros Platise
- *  \brief Events
- * 
- * Event moudle offer real-time signaling and handling of real-time 
- * events at precision of system resolution clock_t.
- * 
- * Events are based on periodic timers, where each started event starts
- * counting at its relative time = 0, and overflows at given period. 
- * Overflow is signalized by posted event that is handled by the 
- * event_eventhandler() called by each thread or task working with 
- * Events. 
- * 
- * Events may be used inside one thread or task only or between tasks 
- * and threads. An event can also be bind to another event i.e.:
- *  - System Clock may issue a notification about Power Failure
- *  - Other threads may connect to this event and when handled, they may
- *    inquiry for pricise time when this event has happend, using the 
- *    event_gettime()
- * 
- * Or system is about to control a process, and instead of looping and 
- * inquiring for time, system timers offer simple and effective 
- * mechanism to control timed actions:
- *  - First event is about to wait 5 seconds, then it must assert some 
- *    switch, triggering another event after 2 seconds, to check the 
- *    state of the system.
- *  - After 2 seconds new event is triggerred, if it is time criticial
- *    it may check for the overrun time and handle further actions,
- *  - ...
- * 
- * Each event is denoted by a callback function event_callback_t, and 
- * an argument. Posted event with the same callback but different 
- * argument is treated as different event, while the same callback with
- * the same argument replaces previously started event.
- **/ 
-
-#ifdef CONFIG_EVENT
-
-#ifndef __INCLUDE_NUTTX_EVENT_H
-#define __INCLUDE_NUTTX_EVENT_H
-
-#include <nuttx/config.h>
-
-#include <time.h>
-#include <stdint.h>
-#include <stdbool.h>
-
-#include <nuttx/clock.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#undef EXTERN
-#if defined(__cplusplus)
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/** Event Callback
- * 
- * \param arg an argument as posted by the event_post(),
- *  event_signal() or event_start() methods.
- * 
- * \return Optional time to increment to retrigger. This time is added
- *   to present actual time, so an event returning with constant value
- *   as return PERIOD would be periodic with long-term absolute precision.
- * 
- * \retval >0 Time to increment to second post of the event.
- * \retval 0  Acknowledge event.
- */
-typedef clock_t (*event_callback_t)(FAR void *arg);
-
-typedef struct event_s event_t;
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
- 
-/** Create new instance of Events (typically per thread) 
- * 
- * \param base Future extension to support multiple base timers. Pass NULL at
- *    the moment.
- * 
- * \return Valid structure or NULL on error with errno set.
- */
-event_t * event_create(void * base);
-
-/** Delete unused instance of Events. A call to this function also destroys
- *  all bindings. 
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \return 0 On success or -1 on error.
- */
-int event_delete(event_t *events);
-
-/** Post an event, equal to period = 0 
- * 
- * In case of connected events, those are called prior calling
- * the given event. Since the event is called last on the list
- * it may serve as an acknowledgement mechanism.
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \return 0 On success or -1 on error.
- */ 
-int event_post(event_t *events, event_callback_t event, void *arg);
-
-/** Trigger an event without calling it but may trigger connected events 
- *
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \return 0 On success or -1 on error.
- */ 
-int event_signal(event_t *events, event_callback_t event, void *arg);
-
-/** Calls all connected events only immediately.
- *
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \return 0 On success or -1 on error.
- */ 
-int event_call(event_t *events, event_callback_t event, void *arg);
-
-/** Are there any connections to given event
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \return 1 When empty otherwise 0
- */
-int event_isempty(event_t *events, event_callback_t event);
-
-/** Start timer with given period 
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \param period  Time to first occurence.
- * \return 0 On success or -1 on error.
- */
-int event_start(event_t *events, event_callback_t event, void *arg, clock_t period);
-
-/** Stop timer, matches only those with equal event and arg.
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \return 0 On success or -1 on error.
- */
-int event_stop(event_t *events, event_callback_t event, void *arg);
-
-/** Stop all timers related to the same event callback 
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \return 0 On success or -1 on error.
- */
-int event_stopall(event_t *events, event_callback_t event);
-
-/** Get present time of given timer 
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param event   Callback to be called
- * \param arg     Optional argument to be passed to the event.
- * \return 0 On success or -1 on error.
- */
-clock_t event_gettime(event_t *events, event_callback_t event, void *arg);
-
-/** Bind two events 
- * 
- * \param source_events Pointer to source event structure.
- * \param source_event   Source event 
- * \param dest_events   Pointer to destination event structure
- * \param dest_event     Destination event to be called, when source fires
- * \return 0 On success or -1 on error.
- */
-int event_connect(event_t *source_events, event_callback_t source_event, 
-                  event_t *dest_events, event_callback_t dest_event);
-    
-/** Unbind two events 
- * 
- * \param source_events Pointer to source event structure.
- * \param source_event   Source event 
- * \param dest_events   Pointer to destination event structure
- * \param dest_event     Destination event to be called, when source fires
- * \return 0 On success or -1 on error.
- */
-int event_disconnect(event_t *source_events, event_callback_t source_event, 
-                     event_t *dest_events, event_callback_t dest_event);
-
-/** Unbind all events related to given destination
- * 
- * \param dest_events   Pointer to destination event structure
- * \param dest_event     Destination event to be called, when source fires
- * \return 0 On success or -1 on error.
- */
-int event_disconnectall(event_t *dest_events, event_callback_t dest_event);
-
-/** Handle callbacks 
- * 
- * \param events Pointer to a structure as returned by event_create()
- * \param timeout Time to wait for a callback to be served.
- * \return Remaining time.
- * */
-clock_t event_handle(event_t *events, clock_t timeout);
-
-
-#undef EXTERN
-#if defined(__cplusplus)
-}
-#endif
-#endif /* __INCLUDE_NUTTX_EVENT_H */
-#endif /* CONFIG_EVENT */
diff --git a/nuttx/include/nuttx/resource.h b/nuttx/include/nuttx/resource.h
deleted file mode 100644
index b8e66446b..000000000
--- a/nuttx/include/nuttx/resource.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/****************************************************************************
- * include/nuttx/resource.h
- *
- *   Copyright(C) 2011 Uros Platise. All rights reserved.
- *   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.
- *
- ****************************************************************************/
-
-/** \file
- *  \author Uros Platise
- *  \brief System Resources
- * 
- * System resource provides interface to device drivers to list possible
- * configurations that can be changed by system to minimize (optimize)
- * energy and power usage, to lock a specific resource, fixing it at
- * desired value and to support multiple power down capabilities by the
- * up_idle().
- * 
- * System resources are provided on the chip or board level, such as:
- *  - clock scaling (chip level)
- *  - voltage scaling (board level)
- * 
- * This interface is to be used by low-level peripherals only and its
- * purpose is to be as fast as possible to do quick power and energy
- * optimizations (including deep power savings).
- * 
- * A separate common device driver interface would be required to allow
- * access from user programs (i.e. to select voltage and similar).
- **/ 
-
-#ifdef CONFIG_RESOURCE
-
-#ifndef __INCLUDE_NUTTX_RESOURCE_H
-#define __INCLUDE_NUTTX_RESOURCE_H
-
-#include <nuttx/config.h>
-#include <nuttx/arch/chip/resource.h>
-#include <nuttx/arch/board/resource.h>
-
-#include <stdint.h>
-
-/****************************************************************************
- * TO BE MOVED UNDER arch/chip/resource.h
- ****************************************************************************/
-
-/** Clocking */
-#define RESOURCE_CLOCK_HCLK
-#define RESOURCE_CLOCK_PCLK1
-#define RESOURCE_CLOCK_PCLK2
-
-
-/****************************************************************************
- * TO BE MOVED UNDER arch/board/resource.h
- ****************************************************************************/
-
-/** Voltage, Vcc Minimum Requirements */
-#define RESOURCE_VOLTAGE_VCC_MIN2_3     0x00
-#define RESOURCE_VOLTAGE_VCC_MIN3_0     0x01    /* A/D converter starts working at this level */
-#define RESOURCE_VOLTAGE_VCC_MIN3_3     0x02
-
-
-/****************************************************************************
- * Available Options to be enabled in the .config
- ****************************************************************************/
-
-#if 0
-
-/** Enable Resources 
- */
-#define CONFIG_RESOURCE
-
-/** Enable resource: clock scaling, allocates an array of options bits
- *  for each peripheral. On STM32 this option adds about 64-128 bytes.
- *  This option is provided by chip: nuttx/arch/board/resource.h
- * 
- * Clock resources are used by low-level driver before they starts a 
- * transaction. System may pick up any of the clock options that suit 
- * all of the drivers. The selected clock option is returned, and is up 
- * to the driver to recalculate and modify i.e. period or additional 
- * prescaler to achieve the desired frequency of operation. After lock() 
- * call, clock will not change, until unlock() is called.
- * 
- * As long there is a single clock lock, system will not be able to 
- * enter low power-down mode in which all of the clocks are disabled.
- * 
- * The isactive() function is called typically by the up_idle() to 
- * decide which power-down mode to select. If none of the clocks are
- * required to run, then ultra low power-down mode can be entered,
- * reducing power as low as downto 35 uA or 25 uA (with LDO in low-power
- * mode).
- * 
- * Note: AD may continue to consume power in stop mode, so it's up 
- *   to AD driver to disable its power when its unused.
- */
-#define CONFIG_RESOURCE_CLOCK_SCALING
-
-/** Enable resource: voltage scaling.
- * 
- *  This option is provided by the board: nuttx/arch/board/resource.h
- */
-#define CONFIG_RESOURCE_VOLTAGE_SCALING
-
-/** Resource Check: check for multiple locks/unlocks conditions and 
- *  report errors.
- * 
- *  For proper operation after lock(resourceN) only one unlock(resourceN)
- *  may follow. Enabling this option adds time consuming checks to detect
- *  errors in low-level drivers.
- */
-#define CONFIG_RESOURCE_CHECK_MULTIPLES
-
-#endif
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#undef EXTERN
-#if defined(__cplusplus)
-#define EXTERN extern "C"
-extern "C" {
-#else
-#define EXTERN extern
-#endif
-
-/****************************************************************************
- * Public Interface
- ****************************************************************************/
- 
-/** Resource Interface */
-
-struct resource_ops_s {
-
-    /** Set possible options for specific domain and peripheral ID */
-    uint32_t (*setopts)(struct resource_dev_t *dev, uint8_t domain_id);
-    
-    /** Get available options */
-    uint32_t (*getopts)(struct resource_dev_t *dev, uint8_t domain);
-
-    /** Lock resource, means, that it cannot be changed meanwhile */
-    uint32_t (*lock)(struct resource_dev_t *dev, uint8_t domain_id);
-    
-    /** Unlock resource, means, allow further changes */
-    uint32_t (*unlock)(struct resource_dev_t *dev, uint8_t domain_id);
-    
-    /** Reports present activity 
-     * \retval >0 activity
-     * \retval =0 Inactivity allowing system entering deep power down modes.
-     * \retval <0 internal error, system cannot resolve requests.
-     */
-    int  (*isactive)(struct resource_dev_t *dev);
-};
-
-#define RESOURCE_SETOPTS(dev, domain_id)    dev->setopts(dev, domain_id)
-#define RESOURCE_GETOPTS(dev, domain)       dev->getopts(dev, domain)
-#define RESOURCE_LOCK(dev, domain_id)       dev->lock(dev, domain_id)
-#define RESOURCE_UNLOCK(dev, domain_id)     dev->unlock(dev, domain_id)
-#define RESOURCE_ISACTIVE(dev)              dev->isactive(dev)
-
-
-#undef EXTERN
-#if defined(__cplusplus)
-}
-#endif
-#endif /* __INCLUDE_NUTTX_EVENT_H */
-#endif /* CONFIG_RESOURCE */