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f4grx
nuttx-apps
Commits
716ca606
Commit
716ca606
authored
11 years ago
by
Gregory Nutt
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Missing file that I forgot to add in the last commit
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platform/mikroe-stm32f4/mikroe_configdata.c
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platform/mikroe-stm32f4/mikroe_configdata.c
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platform/mikroe-stm32f4/mikroe_configdata.c
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716ca606
/************************************************************************************
* apps/platform/mikroe-stm32f4/mikroe_configdata.c
*
* Copyright (C) 2012-2013 Ken Pettit. All rights reserved.
* Author: Ken Pettit <pettitkd@gmail.com>
*
* 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.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include
<nuttx/config.h>
#include
<stdio.h>
#include
<fcntl.h>
#include
<assert.h>
#include
<errno.h>
#include
<debug.h>
#include
<apps/platform/configdata.h>
#ifdef CONFIG_PLATFORM_CONFIGDATA
/************************************************************************************
* Definitions
************************************************************************************/
/************************************************************************************
* Private Types
************************************************************************************/
/************************************************************************************
* Private Function Prototypes
************************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/****************************************************************************
* Name: platform_setconfig
*
* Description:
* Save platform-specific configuration data
*
* Input Parameter:
* id - Defines the class of configuration data
* instance - Defines which instance of configuration data. For example,
* if a board has two networks, then there would be two MAC
* addresses: instance 0 and instance 1
* configdata - The new configuration data to be saved
* datalen - The size of the configuration data in bytes.
*
* Returned Value:
* This is an end-user function, so it follows the normal convention:
* Returns the OK (zero) on success. On failure, it.returns -1 (ERROR) and
* sets errno appropriately.
*
* Values for the errno would include:
*
* EINVAL - The configdata point is invalid
* ENOSYS - The request ID/instance is not supported on this platform
*
* Other errors may be returned from lower level drivers on failure to
* write to the underlying media (if applicable)
*
****************************************************************************/
int
platform_setconfig
(
enum
config_data_e
id
,
int
instance
,
FAR
const
uint8_t
*
configdata
,
size_t
datalen
)
{
#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS
FILE
*
fd
;
#endif
switch
(
id
)
{
case
CONFIGDATA_TSCALIBRATION
:
#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS
/* Save config data in a file on the filesystem. Try to open
* the file. */
if
((
fd
=
fopen
(
CONFIG_MIKROE_STM32F4_CONFIGDATA_FILENAME
,
"w+"
))
==
NULL
)
{
/* Error opening the file */
set_errno
(
ENOENT
);
return
-
1
;
}
/* Write data to the file. For now, we only support one entry, but
* may / will expand it later.
*/
fwrite
(
&
id
,
sizeof
(
id
),
1
,
fd
);
fwrite
(
&
instance
,
sizeof
(
instance
),
1
,
fd
);
fwrite
(
configdata
,
1
,
datalen
,
fd
);
/* CLose the file and exit */
fclose
(
fd
);
return
OK
;
#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_PART
# error This configuration not supported yet!
#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM
/* We are reading from a read-only system, so nothing to do. */
return
OK
;
#else
break
;
#endif
default:
break
;
}
set_errno
(
ENOSYS
);
return
-
1
;
}
/****************************************************************************
* Name: platform_getconfig
*
* Description:
* Get platform-specific configuration data
*
* Input Parameter:
* id - Defines the class of configuration data
* instance - Defines which instance of configuration data. For example,
* if a board has two networks, then there would be two MAC
* addresses: instance 0 and instance 1
* configdata - The new configuration data to be saved
* datalen - The size of the configuration data in bytes.
*
* Returned Value:
* This is an end-user function, so it follows the normal convention:
* Returns the OK (zero) on success. On failure, it.returns -1 (ERROR) and
* sets errno appropriately.
*
* Values for the errno would include:
*
* EINVAL - The configdata point is invalid
* ENOSYS - The request ID/instance is not supported on this platform
*
* Other errors may be returned from lower level drivers on failure to
* write to the underlying media (if applicable)
*
****************************************************************************/
int
platform_getconfig
(
enum
config_data_e
id
,
int
instance
,
FAR
uint8_t
*
configdata
,
size_t
datalen
)
{
#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS
FILE
*
fd
;
size_t
bytes
;
enum
config_data_e
saved_id
;
int
saved_instance
;
#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM
static
const
uint8_t
touch_cal_data
[]
=
{
0x9a
,
0x2f
,
0x00
,
0x00
,
0x40
,
0xbc
,
0x69
,
0xfe
,
0x70
,
0x2e
,
0x00
,
0x00
,
0xb8
,
0x2d
,
0xdb
,
0xff
};
#endif
switch
(
id
)
{
case
CONFIGDATA_TSCALIBRATION
:
#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS
/* Load config data fram a file on the filesystem. Try to open
* the file. */
if
((
fd
=
fopen
(
CONFIG_MIKROE_STM32F4_CONFIGDATA_FILENAME
,
"r"
))
==
NULL
)
{
/* Error opening the file */
set_errno
(
ENOENT
);
return
-
1
;
}
/* Write data to the file. For now, we only support one entry, but
* may / will expand it later.
*/
bytes
=
fread
(
&
saved_id
,
sizeof
(
saved_id
),
1
,
fd
);
bytes
+=
fread
(
&
saved_instance
,
sizeof
(
saved_instance
),
1
,
fd
);
bytes
+=
fread
(
configdata
,
1
,
datalen
,
fd
);
if
(
bytes
!=
sizeof
(
saved_id
)
+
sizeof
(
saved_instance
)
+
datalen
)
{
/* Error! Not enough data in the file */
set_errno
(
EINVAL
);
fclose
(
fd
);
return
-
1
;
}
/* Close the file and exit */
fclose
(
fd
);
return
OK
;
/* Save config data in a file on the filesystem */
return
OK
;
#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM
memcpy
(
configdata
,
touch_cal_data
,
datalen
);
return
OK
;
#else
break
;
#endif
default:
break
;
}
set_errno
(
ENOSYS
);
return
-
1
;
}
#endif
/* CONFIG_PLATFORM_CONFIGDATA */
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