84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
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/* Copyright (c) 2009-2010, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __RMT_STORAGE_SERVER_H
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#define __RMT_STORAGE_SERVER_H
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define RMT_STORAGE_OPEN 0
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#define RMT_STORAGE_WRITE 1
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#define RMT_STORAGE_CLOSE 2
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#define RMT_STORAGE_SEND_USER_DATA 3
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#define RMT_STORAGE_READ 4
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#define RMT_STORAGE_NOOP 255
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#define RMT_STORAGE_MAX_IOVEC_XFR_CNT 5
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#define MAX_NUM_CLIENTS 10
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#define MAX_RAMFS_TBL_ENTRIES 3
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#define RAMFS_BLOCK_SIZE 512
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enum {
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RMT_STORAGE_NO_ERROR = 0, /* Success */
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RMT_STORAGE_ERROR_PARAM, /* Invalid parameters */
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RMT_STORAGE_ERROR_PIPE, /* RPC pipe failure */
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RMT_STORAGE_ERROR_UNINIT, /* Server is not initalized */
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RMT_STORAGE_ERROR_BUSY, /* Device busy */
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RMT_STORAGE_ERROR_DEVICE /* Remote storage device */
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} rmt_storage_status;
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struct rmt_storage_iovec_desc {
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uint32_t sector_addr;
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uint32_t data_phy_addr;
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uint32_t num_sector;
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};
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#define MAX_PATH_NAME 32
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struct rmt_storage_event {
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uint32_t id; /* Event ID */
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uint32_t sid; /* Storage ID */
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uint32_t handle; /* Client handle */
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char path[MAX_PATH_NAME];
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struct rmt_storage_iovec_desc xfer_desc[RMT_STORAGE_MAX_IOVEC_XFR_CNT];
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uint32_t xfer_cnt;
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uint32_t usr_data;
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};
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struct rmt_storage_send_sts {
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uint32_t err_code;
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uint32_t data;
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uint32_t handle;
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uint32_t xfer_dir;
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};
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struct rmt_shrd_mem_param {
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uint32_t sid; /* Storage ID */
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uint32_t start; /* Physical memory address */
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uint32_t size; /* Physical memory size */
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void *base; /* Virtual user-space memory address */
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};
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#define RMT_STORAGE_IOCTL_MAGIC (0xC2)
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#define RMT_STORAGE_SHRD_MEM_PARAM \
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_IOWR(RMT_STORAGE_IOCTL_MAGIC, 0, struct rmt_shrd_mem_param)
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#define RMT_STORAGE_WAIT_FOR_REQ \
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_IOR(RMT_STORAGE_IOCTL_MAGIC, 1, struct rmt_storage_event)
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#define RMT_STORAGE_SEND_STATUS \
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_IOW(RMT_STORAGE_IOCTL_MAGIC, 2, struct rmt_storage_send_sts)
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#endif
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