| /* |
| * Copyright 2012 Google Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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 (at your option) 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., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __DRIVERS_STORAGE_BLOCKDEV_H__ |
| #define __DRIVERS_STORAGE_BLOCKDEV_H__ |
| |
| #include <stdint.h> |
| |
| #include "base/list.h" |
| #include "drivers/storage/stream.h" |
| |
| typedef uint64_t lba_t; |
| |
| typedef struct BlockDevOps { |
| lba_t (*read)(struct BlockDevOps *me, lba_t start, lba_t count, |
| void *buffer); |
| lba_t (*write)(struct BlockDevOps *me, lba_t start, lba_t count, |
| const void *buffer); |
| StreamOps *(*new_stream)(struct BlockDevOps *me, lba_t start, |
| lba_t count); |
| } BlockDevOps; |
| |
| typedef struct BlockDev { |
| BlockDevOps ops; |
| |
| const char *name; |
| int removable; |
| unsigned block_size; |
| lba_t block_count; |
| |
| ListNode list_node; |
| } BlockDev; |
| |
| extern ListNode fixed_block_devices; |
| extern ListNode removable_block_devices; |
| |
| typedef struct BlockDevCtrlrOps { |
| int (*update)(struct BlockDevCtrlrOps *me); |
| } BlockDevCtrlrOps; |
| |
| typedef struct BlockDevCtrlr { |
| BlockDevCtrlrOps ops; |
| |
| int need_update; |
| ListNode list_node; |
| } BlockDevCtrlr; |
| |
| extern ListNode fixed_block_dev_controllers; |
| extern ListNode removable_block_dev_controllers; |
| |
| StreamOps *new_simple_stream(BlockDevOps *me, lba_t start, lba_t count); |
| |
| #endif /* __DRIVERS_STORAGE_BLOCKDEV_H__ */ |