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Commit 05eeae84 authored by patacongo's avatar patacongo
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Remove unused header files; eliminate warnings 

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3731 42af7a65-404d-4744-a932-0658087f49c3
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Documentation/NuttX.html
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......@@ -1627,6 +1627,30 @@
<td><br></td>
<td><hr></td>
</tr>
<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>
......
configs/vsn/src/vsn.h
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......@@ -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 */
......
include/nuttx/event.h deleted 100755 → 0
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/****************************************************************************
* 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 */
include/nuttx/resource.h deleted 100644 → 0
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/****************************************************************************
* 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 */
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