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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2006 Martin Decky |
2 | * Copyright (c) 2006 Martin Decky |
| 3 | * Copyright (c) 2007 Jakub Jermar |
3 | * Copyright (c) 2007 Jakub Jermar |
| 4 | * All rights reserved. |
4 | * All rights reserved. |
| 5 | * |
5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
8 | * are met: |
| 9 | * |
9 | * |
| 10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
| 15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
| 16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
| 17 | * |
17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
28 | */ |
| 29 | 29 | ||
| 30 | /** @addtogroup fs |
30 | /** @addtogroup fs |
| 31 | * @{ |
31 | * @{ |
| 32 | */ |
32 | */ |
| 33 | 33 | ||
| 34 | /** |
34 | /** |
| 35 | * @file fat.c |
35 | * @file fat.c |
| 36 | * @brief FAT file system driver for HelenOS. |
36 | * @brief FAT file system driver for HelenOS. |
| 37 | */ |
37 | */ |
| 38 | 38 | ||
| 39 | #include <ipc/ipc.h> |
39 | #include <ipc/ipc.h> |
| 40 | #include <ipc/services.h> |
40 | #include <ipc/services.h> |
| - | 41 | #include <async.h> |
|
| 41 | #include <errno.h> |
42 | #include <errno.h> |
| 42 | #include <unistd.h> |
43 | #include <unistd.h> |
| 43 | #include "../../vfs/vfs.h" |
44 | #include "../../vfs/vfs.h" |
| 44 | 45 | ||
| 45 | vfs_info_t fat_vfs_info = { |
46 | vfs_info_t fat_vfs_info = { |
| 46 | .name = "fat", |
47 | .name = "fat", |
| 47 | .ops = { |
48 | .ops = { |
| 48 | [IPC_METHOD_TO_VFS_OP(VFS_REGISTER)] = VFS_OP_DEFINED, |
49 | [IPC_METHOD_TO_VFS_OP(VFS_REGISTER)] = VFS_OP_DEFINED, |
| 49 | [IPC_METHOD_TO_VFS_OP(VFS_MOUNT)] = VFS_OP_DEFINED, |
50 | [IPC_METHOD_TO_VFS_OP(VFS_MOUNT)] = VFS_OP_DEFINED, |
| 50 | [IPC_METHOD_TO_VFS_OP(VFS_UNMOUNT)] = VFS_OP_DEFINED, |
51 | [IPC_METHOD_TO_VFS_OP(VFS_UNMOUNT)] = VFS_OP_DEFINED, |
| 51 | [IPC_METHOD_TO_VFS_OP(VFS_LOOKUP)] = VFS_OP_DEFINED, |
52 | [IPC_METHOD_TO_VFS_OP(VFS_LOOKUP)] = VFS_OP_DEFINED, |
| 52 | [IPC_METHOD_TO_VFS_OP(VFS_OPEN)] = VFS_OP_DEFINED, |
53 | [IPC_METHOD_TO_VFS_OP(VFS_OPEN)] = VFS_OP_DEFINED, |
| 53 | [IPC_METHOD_TO_VFS_OP(VFS_CREATE)] = VFS_OP_DEFINED, |
54 | [IPC_METHOD_TO_VFS_OP(VFS_CREATE)] = VFS_OP_DEFINED, |
| 54 | [IPC_METHOD_TO_VFS_OP(VFS_CLOSE)] = VFS_OP_DEFINED, |
55 | [IPC_METHOD_TO_VFS_OP(VFS_CLOSE)] = VFS_OP_DEFINED, |
| 55 | [IPC_METHOD_TO_VFS_OP(VFS_READ)] = VFS_OP_DEFINED, |
56 | [IPC_METHOD_TO_VFS_OP(VFS_READ)] = VFS_OP_DEFINED, |
| 56 | [IPC_METHOD_TO_VFS_OP(VFS_WRITE)] = VFS_OP_NULL, |
57 | [IPC_METHOD_TO_VFS_OP(VFS_WRITE)] = VFS_OP_NULL, |
| 57 | [IPC_METHOD_TO_VFS_OP(VFS_SEEK)] = VFS_OP_DEFAULT |
58 | [IPC_METHOD_TO_VFS_OP(VFS_SEEK)] = VFS_OP_DEFAULT |
| 58 | } |
59 | } |
| 59 | }; |
60 | }; |
| 60 | 61 | ||
| - | 62 | /* |
|
| - | 63 | * This fibril processes request from the VFS server. |
|
| - | 64 | */ |
|
| - | 65 | void fat_connection(ipc_callid_t iid, ipc_call_t *icall) |
|
| - | 66 | { |
|
| - | 67 | while (1) { |
|
| - | 68 | ipc_callid_t callid; |
|
| - | 69 | ipc_call_t call; |
|
| - | 70 | ||
| - | 71 | callid = async_get_call(&call); |
|
| - | 72 | ipc_answer_fast(callid, ENOTSUP, 0, 0); |
|
| - | 73 | } |
|
| - | 74 | } |
|
| - | 75 | ||
| 61 | int main(int argc, char **argv) |
76 | int main(int argc, char **argv) |
| 62 | { |
77 | { |
| 63 | ipcarg_t vfs_phone; |
78 | ipcarg_t vfs_phone; |
| 64 | 79 | ||
| 65 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0); |
80 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0); |
| 66 | while (vfs_phone != EOK) { |
81 | while (vfs_phone != EOK) { |
| 67 | usleep(10000); |
82 | usleep(10000); |
| 68 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0); |
83 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0); |
| 69 | } |
84 | } |
| 70 | 85 | ||
| - | 86 | /* |
|
| 71 | /* TODO: start making calls according to the VFS protocol */ |
87 | * Tell VFS that we are here and want to get registered. |
| - | 88 | * We use the async framework because VFS will answer the request |
|
| - | 89 | * out-of-order, when it knows that the operation succeeded or failed. |
|
| - | 90 | */ |
|
| - | 91 | ipc_call_t answer; |
|
| - | 92 | aid_t req = async_send_2(vfs_phone, VFS_REGISTER, 0, 0, &answer); |
|
| - | 93 | ||
| - | 94 | /* |
|
| - | 95 | * Send our VFS info structure to VFS. |
|
| - | 96 | */ |
|
| - | 97 | int rc = ipc_data_send(vfs_phone, &fat_vfs_info, sizeof(fat_vfs_info)); |
|
| - | 98 | if (rc != EOK) { |
|
| - | 99 | async_wait_for(req, NULL); |
|
| - | 100 | return rc; |
|
| - | 101 | } |
|
| - | 102 | ||
| - | 103 | /* |
|
| - | 104 | * Ask VFS for callback connection. |
|
| - | 105 | */ |
|
| - | 106 | ipcarg_t phonehash; |
|
| - | 107 | ipc_connect_to_me(vfs_phone, 0, 0, &phonehash); |
|
| 72 | 108 | ||
| - | 109 | async_new_connection(phonehash, 0, NULL, fat_connection); |
|
| 73 | return 0; |
110 | return 0; |
| 74 | } |
111 | } |
| 75 | 112 | ||
| 76 | /** |
113 | /** |
| 77 | * @} |
114 | * @} |
| 78 | */ |
115 | */ |
| 79 | 116 | ||