diff options
Diffstat (limited to 'c/src/exec/libfs/src/imfs/deviceio.c')
| -rw-r--r-- | c/src/exec/libfs/src/imfs/deviceio.c | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/c/src/exec/libfs/src/imfs/deviceio.c b/c/src/exec/libfs/src/imfs/deviceio.c deleted file mode 100644 index eafc48ec4e..0000000000 --- a/c/src/exec/libfs/src/imfs/deviceio.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * IMFS Device Node Handlers - * - * This file contains the set of handlers used to map operations on - * IMFS device nodes onto calls to the RTEMS Classic API IO Manager. - * - * COPYRIGHT (c) 1989-1999. - * 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.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <rtems.h> -#include <rtems/libio.h> -#include <rtems/assoc.h> /* assoc.h not included by rtems.h */ -#include <errno.h> - -#include "imfs.h" - -/* - * Convert RTEMS status to a UNIX errno - */ - -rtems_assoc_t errno_assoc[] = { - { "OK", RTEMS_SUCCESSFUL, 0 }, - { "BUSY", RTEMS_RESOURCE_IN_USE, EBUSY }, - { "INVALID NAME", RTEMS_INVALID_NAME, EINVAL }, - { "NOT IMPLEMENTED", RTEMS_NOT_IMPLEMENTED, ENOSYS }, - { "TIMEOUT", RTEMS_TIMEOUT, ETIMEDOUT }, - { "NO MEMORY", RTEMS_NO_MEMORY, ENOMEM }, - { "NO DEVICE", RTEMS_UNSATISFIED, ENODEV }, - { "INVALID NUMBER", RTEMS_INVALID_NUMBER, EBADF}, - { "NOT RESOURCE OWNER", RTEMS_NOT_OWNER_OF_RESOURCE, EPERM}, - { "IO ERROR", RTEMS_IO_ERROR, EIO}, - { 0, 0, 0 }, -}; - -static unsigned32 -rtems_deviceio_errno(rtems_status_code code) -{ - int rc; - - if ((rc = rtems_assoc_remote_by_local(errno_assoc, (unsigned32) code))) - { - errno = rc; - return -1; - } - return -1; -} - -/* - * device_open - * - * This handler maps an open() operation onto rtems_io_open(). - */ - -int device_open( - rtems_libio_t *iop, - const char *pathname, - unsigned32 flag, - unsigned32 mode -) -{ - rtems_libio_open_close_args_t args; - rtems_status_code status; - IMFS_jnode_t *the_jnode; - - the_jnode = iop->file_info; - - args.iop = iop; - args.flags = iop->flags; - args.mode = mode; - - status = rtems_io_open( - the_jnode->info.device.major, - the_jnode->info.device.minor, - (void *) &args - ); - if ( status ) { - rtems_deviceio_errno(status); - return RTEMS_UNSATISFIED; - } - - return 0; -} - -/* - * device_close - * - * This handler maps a close() operation onto rtems_io_close(). - */ - -int device_close( - rtems_libio_t *iop -) -{ - rtems_libio_open_close_args_t args; - rtems_status_code status; - IMFS_jnode_t *the_jnode; - - the_jnode = iop->file_info; - - args.iop = iop; - args.flags = 0; - args.mode = 0; - - status = rtems_io_close( - the_jnode->info.device.major, - the_jnode->info.device.minor, - (void *) &args - ); - if ( status ) { - rtems_deviceio_errno(status); - return RTEMS_UNSATISFIED; - } - return 0; -} - -/* - * device_read - * - * This handler maps a read() operation onto rtems_io_read(). - */ - -int device_read( - rtems_libio_t *iop, - void *buffer, - unsigned32 count -) -{ - rtems_libio_rw_args_t args; - rtems_status_code status; - IMFS_jnode_t *the_jnode; - - the_jnode = iop->file_info; - - args.iop = iop; - args.offset = iop->offset; - args.buffer = buffer; - args.count = count; - args.flags = iop->flags; - args.bytes_moved = 0; - - status = rtems_io_read( - the_jnode->info.device.major, - the_jnode->info.device.minor, - (void *) &args - ); - - if ( status ) - return rtems_deviceio_errno(status); - - return args.bytes_moved; -} - -/* - * device_write - * - * This handler maps a write() operation onto rtems_io_write(). - */ - -int device_write( - rtems_libio_t *iop, - const void *buffer, - unsigned32 count -) -{ - rtems_libio_rw_args_t args; - rtems_status_code status; - IMFS_jnode_t *the_jnode; - - the_jnode = iop->file_info; - - args.iop = iop; - args.offset = iop->offset; - args.buffer = (void *) buffer; - args.count = count; - args.flags = iop->flags; - args.bytes_moved = 0; - - status = rtems_io_write( - the_jnode->info.device.major, - the_jnode->info.device.minor, - (void *) &args - ); - - if ( status ) - return rtems_deviceio_errno(status); - - return args.bytes_moved; -} - -/* - * device_ioctl - * - * This handler maps an ioctl() operation onto rtems_io_ioctl(). - */ - -int device_ioctl( - rtems_libio_t *iop, - unsigned32 command, - void *buffer -) -{ - rtems_libio_ioctl_args_t args; - rtems_status_code status; - IMFS_jnode_t *the_jnode; - - args.iop = iop; - args.command = command; - args.buffer = buffer; - - the_jnode = iop->file_info; - - status = rtems_io_control( - the_jnode->info.device.major, - the_jnode->info.device.minor, - (void *) &args - ); - - if ( status ) - return rtems_deviceio_errno(status); - - return args.ioctl_return; -} - -/* - * device_lseek - * - * This handler eats all lseek() operations. - */ - -int device_lseek( - rtems_libio_t *iop, - off_t offset, - int whence -) -{ - return 0; -} - -/* - * device_stat - * - * The IMFS_stat() is used. - */ - -/* - * device_rmnod - * - * The IMFS_rmnod() is used. - */ |