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.

1 files changed, 4 insertions, 292 deletions

diff --git a/cpukit/sapi/src/io.c b/cpukit/sapi/src/io.c
index f200a514ac..bd5cd4f0ec 100644
--- a/cpukit/sapi/src/io.c
+++ b/cpukit/sapi/src/io.c
@@ -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;
-}