diff options
Diffstat (limited to 'qemu/roms/ipxe/src/core/blockdev.c')
-rw-r--r-- | qemu/roms/ipxe/src/core/blockdev.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/qemu/roms/ipxe/src/core/blockdev.c b/qemu/roms/ipxe/src/core/blockdev.c deleted file mode 100644 index c219d9673..000000000 --- a/qemu/roms/ipxe/src/core/blockdev.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <errno.h> -#include <ipxe/interface.h> -#include <ipxe/blockdev.h> - -/** @file - * - * Block devices - * - */ - -/** - * Read from block device - * - * @v control Control interface - * @v data Data interface - * @v lba Starting logical block address - * @v count Number of logical blocks - * @v buffer Data buffer - * @v len Length of data buffer - * @ret rc Return status code - */ -int block_read ( struct interface *control, struct interface *data, - uint64_t lba, unsigned int count, - userptr_t buffer, size_t len ) { - struct interface *dest; - block_read_TYPE ( void * ) *op = - intf_get_dest_op ( control, block_read, &dest ); - void *object = intf_object ( dest ); - int rc; - - if ( op ) { - rc = op ( object, data, lba, count, buffer, len ); - } else { - /* Default is to fail to issue the command */ - rc = -EOPNOTSUPP; - } - - intf_put ( dest ); - return rc; -} - -/** - * Write to block device - * - * @v control Control interface - * @v data Data interface - * @v lba Starting logical block address - * @v count Number of logical blocks - * @v buffer Data buffer - * @v len Length of data buffer - * @ret rc Return status code - */ -int block_write ( struct interface *control, struct interface *data, - uint64_t lba, unsigned int count, - userptr_t buffer, size_t len ) { - struct interface *dest; - block_write_TYPE ( void * ) *op = - intf_get_dest_op ( control, block_write, &dest ); - void *object = intf_object ( dest ); - int rc; - - if ( op ) { - rc = op ( object, data, lba, count, buffer, len ); - } else { - /* Default is to fail to issue the command */ - rc = -EOPNOTSUPP; - } - - intf_put ( dest ); - return rc; -} - -/** - * Read block device capacity - * - * @v control Control interface - * @v data Data interface - * @ret rc Return status code - */ -int block_read_capacity ( struct interface *control, struct interface *data ) { - struct interface *dest; - block_read_capacity_TYPE ( void * ) *op = - intf_get_dest_op ( control, block_read_capacity, &dest ); - void *object = intf_object ( dest ); - int rc; - - if ( op ) { - rc = op ( object, data ); - } else { - /* Default is to fail to issue the command */ - rc = -EOPNOTSUPP; - } - - intf_put ( dest ); - return rc; -} - -/** - * Report block device capacity - * - * @v intf Interface - * @v capacity Block device capacity - */ -void block_capacity ( struct interface *intf, - struct block_device_capacity *capacity ) { - struct interface *dest; - block_capacity_TYPE ( void * ) *op = - intf_get_dest_op ( intf, block_capacity, &dest ); - void *object = intf_object ( dest ); - - if ( op ) { - op ( object, capacity ); - } else { - /* Default is to do nothing */ - } - - intf_put ( dest ); -} |