1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* Copyright (c) 2009-2010, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#ifndef __RMT_STORAGE_SERVER_H
#define __RMT_STORAGE_SERVER_H
#include <linux/types.h>
#include <linux/ioctl.h>
#define RMT_STORAGE_OPEN 0
#define RMT_STORAGE_WRITE 1
#define RMT_STORAGE_CLOSE 2
#define RMT_STORAGE_SEND_USER_DATA 3
#define RMT_STORAGE_READ 4
#define RMT_STORAGE_NOOP 255
#define RMT_STORAGE_MAX_IOVEC_XFR_CNT 5
#define MAX_NUM_CLIENTS 10
#define MAX_RAMFS_TBL_ENTRIES 3
#define RAMFS_BLOCK_SIZE 512
enum {
RMT_STORAGE_NO_ERROR = 0, /* Success */
RMT_STORAGE_ERROR_PARAM, /* Invalid parameters */
RMT_STORAGE_ERROR_PIPE, /* RPC pipe failure */
RMT_STORAGE_ERROR_UNINIT, /* Server is not initalized */
RMT_STORAGE_ERROR_BUSY, /* Device busy */
RMT_STORAGE_ERROR_DEVICE /* Remote storage device */
} rmt_storage_status;
struct rmt_storage_iovec_desc {
uint32_t sector_addr;
uint32_t data_phy_addr;
uint32_t num_sector;
};
#define MAX_PATH_NAME 32
struct rmt_storage_event {
uint32_t id; /* Event ID */
uint32_t sid; /* Storage ID */
uint32_t handle; /* Client handle */
char path[MAX_PATH_NAME];
struct rmt_storage_iovec_desc xfer_desc[RMT_STORAGE_MAX_IOVEC_XFR_CNT];
uint32_t xfer_cnt;
uint32_t usr_data;
};
struct rmt_storage_send_sts {
uint32_t err_code;
uint32_t data;
uint32_t handle;
uint32_t xfer_dir;
};
struct rmt_shrd_mem_param {
uint32_t sid; /* Storage ID */
uint32_t start; /* Physical memory address */
uint32_t size; /* Physical memory size */
void *base; /* Virtual user-space memory address */
};
#define RMT_STORAGE_IOCTL_MAGIC (0xC2)
#define RMT_STORAGE_SHRD_MEM_PARAM \
_IOWR(RMT_STORAGE_IOCTL_MAGIC, 0, struct rmt_shrd_mem_param)
#define RMT_STORAGE_WAIT_FOR_REQ \
_IOR(RMT_STORAGE_IOCTL_MAGIC, 1, struct rmt_storage_event)
#define RMT_STORAGE_SEND_STATUS \
_IOW(RMT_STORAGE_IOCTL_MAGIC, 2, struct rmt_storage_send_sts)
#endif
|
