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Diffstat (limited to 'cpukit/sapi/src/io.c')
-rw-r--r-- | cpukit/sapi/src/io.c | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/cpukit/sapi/src/io.c b/cpukit/sapi/src/io.c deleted file mode 100644 index b326a96987..0000000000 --- a/cpukit/sapi/src/io.c +++ /dev/null @@ -1,345 +0,0 @@ -/* - * Input/Output Manager - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/io.h> -#include <rtems/score/isr.h> -#include <rtems/score/thread.h> -#include <rtems/score/wkspace.h> - -#include <string.h> - -/*PAGE - * - * _IO_Manager_initialization - * - */ - -void _IO_Manager_initialization( - rtems_driver_address_table *driver_table, - unsigned32 number_of_drivers, - unsigned32 number_of_devices -) -{ - void *tmp; - unsigned32 index; - rtems_driver_name_t *np; - - _IO_Driver_address_table = driver_table; - _IO_Number_of_drivers = number_of_drivers; - _IO_Number_of_devices = number_of_devices; - - tmp = _Workspace_Allocate_or_fatal_error( - sizeof( rtems_driver_name_t ) * ( number_of_devices + 1 ) - ); - - _IO_Driver_name_table = (rtems_driver_name_t *) tmp; - - for( index=0, np = _IO_Driver_name_table ; - index < _IO_Number_of_devices ; - index++, np++ ) { - np->device_name = 0; - np->device_name_length = 0; - np->major = 0; - np->minor = 0; - } -} - -/*PAGE - * - * _IO_Initialize_all_drivers - * - * This routine initializes all device drivers - * - * Input Paramters: NONE - * - * Output Parameters: NONE - */ - -void _IO_Initialize_all_drivers( void ) -{ - rtems_device_major_number major; - - for ( major=0 ; major < _IO_Number_of_drivers ; major ++ ) - (void) rtems_io_initialize( major, 0, NULL); -} - -/*PAGE - * - * rtems_io_register_name - * - * Associate a name with a driver - * - * Input Paramters: - * device_name - pointer to name string to associate with device - * major - device major number to receive name - * minor - device minor number to receive name - * - * Output Parameters: - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_io_register_name( - char *device_name, - rtems_device_major_number major, - rtems_device_minor_number minor - ) -{ - rtems_driver_name_t *np; - unsigned32 level; - unsigned32 index; - - /* find an empty slot */ - for( index=0, np = _IO_Driver_name_table ; - index < _IO_Number_of_devices ; - index++, np++ ) - { - - _ISR_Disable(level); - if (np->device_name == 0) - { - np->device_name = device_name; - np->device_name_length = strlen(device_name); - np->major = major; - np->minor = minor; - _ISR_Enable(level); - - return RTEMS_SUCCESSFUL; - } - _ISR_Enable(level); - } - - return RTEMS_TOO_MANY; -} - -/*PAGE - * - * rtems_io_lookup_name - * - * Find what driver "owns" this name - * - * Input Paramters: - * name - name to lookup the associated device - * - * Output Parameters: - * device_info - device associate with name - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_io_lookup_name( - const char *name, - rtems_driver_name_t **device_info -) -{ - rtems_driver_name_t *np; - unsigned32 index; - - for( index=0, np = _IO_Driver_name_table ; - index < _IO_Number_of_devices ; - index++, np++ ) - if (np->device_name) - if (strncmp(np->device_name, name, np->device_name_length) == 0) - { - *device_info = np; - return RTEMS_SUCCESSFUL; - } - - *device_info = 0; - 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; - 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; - 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; - 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; - 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; - 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; - return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL; -} - |