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2007-05-29 Joel Sherrill <joel.sherrill@OARcorp.com>

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* sapi/Makefile.am, sapi/include/rtems/io.h, sapi/src/io.c: Split into
	one function per file execpt io.c which contains required
	initialization methods.
	* sapi/src/ioclose.c, sapi/src/iocontrol.c, sapi/src/iodata.c,
	sapi/src/ioinitialize.c, sapi/src/ioopen.c, sapi/src/ioread.c,
	sapi/src/ioregisterdriver.c, sapi/src/iounregisterdriver.c,
	sapi/src/iowrite.c: New files.
This commit is contained in:
Joel Sherrill
2007-05-29 19:56:35 +00:00
parent 6829e03632
commit 9c556023f0
13 changed files with 476 additions and 296 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
cpukit/ChangeLog
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@@ -1,3 +1,13 @@
2007-05-29 Joel Sherrill <joel.sherrill@OARcorp.com>
* sapi/Makefile.am, sapi/include/rtems/io.h, sapi/src/io.c: Split into
one function per file execpt io.c which contains required
initialization methods.
* sapi/src/ioclose.c, sapi/src/iocontrol.c, sapi/src/iodata.c,
sapi/src/ioinitialize.c, sapi/src/ioopen.c, sapi/src/ioread.c,
sapi/src/ioregisterdriver.c, sapi/src/iounregisterdriver.c,
sapi/src/iowrite.c: New files.
2007-05-29 Joel Sherrill <joel.sherrill@OARcorp.com>
* sapi/include/confdefs.h, sapi/src/io.c: Readded code to copy driver

6
cpukit/sapi/Makefile.am
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@@ -22,8 +22,10 @@ AM_CPPFLAGS += -D__RTEMS_INSIDE__
noinst_LIBRARIES = libsapi.a
libsapi_a_SOURCES = src/debug.c src/extension.c src/extensioncreate.c \
src/extensiondelete.c src/extensionident.c src/fatal.c src/exinit.c \
src/exshutdown.c src/io.c src/itronapi.c src/posixapi.c src/rtemsapi.c \
src/extensiondata.c
src/exshutdown.c src/io.c src/ioclose.c src/iocontrol.c src/iodata.c \
src/ioinitialize.c src/ioopen.c src/ioread.c src/ioregisterdriver.c \
src/iounregisterdriver.c src/iowrite.c src/itronapi.c src/posixapi.c \
src/rtemsapi.c src/extensiondata.c
libsapi_a_CPPFLAGS = $(AM_CPPFLAGS)
include $(srcdir)/preinstall.am

8
cpukit/sapi/include/rtems/io.h
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@@ -30,6 +30,10 @@
#ifndef _RTEMS_IO_H
#define _RTEMS_IO_H
#ifndef SAPI_IO_EXTERN
#define SAPI_IO_EXTERN extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
@@ -88,8 +92,8 @@ typedef struct {
* Address Table and Device Name Table.
*/
SAPI_EXTERN uint32_t _IO_Number_of_drivers;
SAPI_EXTERN rtems_driver_address_table *_IO_Driver_address_table;
SAPI_IO_EXTERN uint32_t _IO_Number_of_drivers;
SAPI_IO_EXTERN rtems_driver_address_table *_IO_Driver_address_table;
/*
* _IO_Manager_initialization

296
cpukit/sapi/src/io.c
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@@ -1,8 +1,7 @@
/*
* Input/Output Manager
* Input/Output Manager - Initialize Device Driver Subsystem
*
*
* COPYRIGHT (c) 1989-1999.
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
@@ -24,8 +23,7 @@
#include <string.h>
/*PAGE
*
/*
* _IO_Manager_initialization
*
* The IO manager has been extended to support runtime driver
@@ -81,8 +79,7 @@ void _IO_Manager_initialization(
number_of_drivers = drivers_in_table;
}
/*PAGE
*
/*
* _IO_Initialize_all_drivers
*
* This routine initializes all device drivers
@@ -99,288 +96,3 @@ void _IO_Initialize_all_drivers( void )
for ( major=0 ; major < _IO_Number_of_drivers ; major ++ )
(void) rtems_io_initialize( major, 0, NULL );
}
/*PAGE
*
* rtems_io_register_driver
*
* Register a driver into the device driver table.
*
* Input Paramters:
* major - device major number (0 means allocate
* a number)
* driver_table - driver callout function table
* registered_major - the major number which is registered
*
* Output Parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_io_register_driver(
rtems_device_major_number major,
rtems_driver_address_table *driver_table,
rtems_device_major_number *registered_major
)
{
/*
* Validate the pointer data and contents passed in
*/
if ( !driver_table )
return RTEMS_INVALID_ADDRESS;
if ( !registered_major )
return RTEMS_INVALID_ADDRESS;
if ( !driver_table->initialization_entry && !driver_table->open_entry )
return RTEMS_INVALID_ADDRESS;
*registered_major = 0;
/*
* The requested major number is higher than what is configured.
*/
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
/*
* Test for initialise/open being present to indicate the driver slot is
* in use.
*/
if ( major == 0 ) {
boolean found = FALSE;
for ( major = _IO_Number_of_drivers - 1 ; major ; major-- ) {
if ( !_IO_Driver_address_table[major].initialization_entry &&
!_IO_Driver_address_table[major].open_entry ) {
found = TRUE;
break;
}
}
if ( !found )
return RTEMS_TOO_MANY;
}
if ( _IO_Driver_address_table[major].initialization_entry ||
_IO_Driver_address_table[major].open_entry )
return RTEMS_RESOURCE_IN_USE;
_IO_Driver_address_table[major] = *driver_table;
*registered_major = major;
rtems_io_initialize( major, 0, NULL );
return RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_unregister_driver
*
* Unregister a driver from the device driver table.
*
* Input Paramters:
* major - device major number
*
* Output Parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_io_unregister_driver(
rtems_device_major_number major
)
{
if ( major < _IO_Number_of_drivers ) {
memset(
&_IO_Driver_address_table[major],
0,
sizeof( rtems_driver_address_table )
);
return RTEMS_SUCCESSFUL;
}
return RTEMS_UNSATISFIED;
}
/*PAGE
*
* rtems_io_initialize
*
* This routine is the initialization directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].initialization_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_open
*
* This routine is the open directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].open_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_close
*
* This routine is the close directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].close_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_read
*
* This routine is the read directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].read_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_write
*
* This routine is the write directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].write_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}
/*PAGE
*
* rtems_io_control
*
* This routine is the control directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].control_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

48
cpukit/sapi/src/ioclose.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager -- Close Device
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_close
*
* This routine is the close directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].close_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

48
cpukit/sapi/src/iocontrol.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Device Control
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_control
*
* This routine is the control directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].control_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

22
cpukit/sapi/src/iodata.c Normal file
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@@ -0,0 +1,22 @@
/*
* RTEMS Task Manager -- Instantiate Data
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
/* instantiate RTEMS IO manager data */
#define SAPI_IO_EXTERN
#include <rtems/system.h>
#include <rtems/io.h>

48
cpukit/sapi/src/ioinitialize.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Initialize Device
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_initialize
*
* This routine is the initialization directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].initialization_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

48
cpukit/sapi/src/ioopen.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Open Device
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_open
*
* This routine is the open directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].open_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

48
cpukit/sapi/src/ioread.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Device Read
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_read
*
* This routine is the read directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].read_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}

94
cpukit/sapi/src/ioregisterdriver.c Normal file
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@@ -0,0 +1,94 @@
/*
* Input/Output Manager - Dynamically Register Device Driver
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_register_driver
*
* Register a driver into the device driver table.
*
* Input Paramters:
* major - device major number (0 means allocate
* a number)
* driver_table - driver callout function table
* registered_major - the major number which is registered
*
* Output Parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_io_register_driver(
rtems_device_major_number major,
rtems_driver_address_table *driver_table,
rtems_device_major_number *registered_major
)
{
/*
* Validate the pointer data and contents passed in
*/
if ( !driver_table )
return RTEMS_INVALID_ADDRESS;
if ( !registered_major )
return RTEMS_INVALID_ADDRESS;
if ( !driver_table->initialization_entry && !driver_table->open_entry )
return RTEMS_INVALID_ADDRESS;
*registered_major = 0;
/*
* The requested major number is higher than what is configured.
*/
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
/*
* Test for initialise/open being present to indicate the driver slot is
* in use.
*/
if ( major == 0 ) {
boolean found = FALSE;
for ( major = _IO_Number_of_drivers - 1 ; major ; major-- ) {
if ( !_IO_Driver_address_table[major].initialization_entry &&
!_IO_Driver_address_table[major].open_entry ) {
found = TRUE;
break;
}
}
if ( !found )
return RTEMS_TOO_MANY;
}
if ( _IO_Driver_address_table[major].initialization_entry ||
_IO_Driver_address_table[major].open_entry )
return RTEMS_RESOURCE_IN_USE;
_IO_Driver_address_table[major] = *driver_table;
*registered_major = major;
rtems_io_initialize( major, 0, NULL );
return RTEMS_SUCCESSFUL;
}

48
cpukit/sapi/src/iounregisterdriver.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Dynamically Unregister Device Driver
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
#include <string.h>
/*
* rtems_io_unregister_driver
*
* Unregister a driver from the device driver table.
*
* Input Paramters:
* major - device major number
*
* Output Parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_io_unregister_driver(
rtems_device_major_number major
)
{
if ( major < _IO_Number_of_drivers ) {
memset(
&_IO_Driver_address_table[major],
0,
sizeof( rtems_driver_address_table )
);
return RTEMS_SUCCESSFUL;
}
return RTEMS_UNSATISFIED;
}

48
cpukit/sapi/src/iowrite.c Normal file
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@@ -0,0 +1,48 @@
/*
* Input/Output Manager - Device Write
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/io.h>
/*
* rtems_io_write
*
* This routine is the write directive of the IO manager.
*
* Input Paramters:
* major - device driver number
* minor - device number
* argument - pointer to argument(s)
*
* Output Parameters:
* returns - return code
*/
rtems_status_code rtems_io_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *argument
)
{
rtems_device_driver_entry callout;
if ( major >= _IO_Number_of_drivers )
return RTEMS_INVALID_NUMBER;
callout = _IO_Driver_address_table[major].write_entry;
return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
}