1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "los_debug.h"
33 #include "fs_config.h"
34 #include "fatfs.h"
35 #include "ff_gen_drv.h"
36
37 DiskDrvTypeDef g_diskDrv = { { 0 }, { 0 }, { 0 }, { 0 } };
38
39 #if (LOSCFG_SUPPORT_FATFS == 1)
40 #include "cfiflash.h"
41 /*
42 note: Physical drive 0 for cfiFlash can not be used, may be conflicted with kernel img,
43 so we must assign index=1 when use -drive if=pflash in qemu_run.sh
44 */
45 PARTITION VolToPart[FF_VOLUMES] = { { 0 }, { 0 }, { 0 }, { 0 } };
46
SetupVolToPartTable(int index,PARTITION vptable,DiskioDrvTypeDef * cfiDrv)47 int SetupVolToPartTable(int index, PARTITION vptable, DiskioDrvTypeDef *cfiDrv)
48 {
49 if (index < 0 || index >= FF_VOLUMES) {
50 PRINT_ERR("[%s]the volum index is out of range\n", __func__);
51 return RES_ERROR;
52 }
53 VolToPart[index].di = vptable.di; /* Physics disk id */
54 VolToPart[index].pd = vptable.pd; /* Physical drive number */
55 VolToPart[index].pt = vptable.pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
56 VolToPart[index].ps = vptable.ps; /* Partition start sector */
57 VolToPart[index].pc = vptable.pc; /* Partition sector count */
58
59 g_diskDrv.initialized[index] = 0;
60 g_diskDrv.drv[index] = cfiDrv;
61 g_diskDrv.lun[index] = VolToPart[index].pd;
62 return RES_OK;
63 }
64
SetupDefaultVolToPartTable()65 void SetupDefaultVolToPartTable()
66 {
67 int i = 0;
68 PARTITION defaultVToP[FF_VOLUMES] = {
69 {0, 1, 1}, /* "0:" ==> Physical drive 1, 1st partition */
70 {1, 1, 2}, /* "1:" ==> Physical drive 1, 2nd partition */
71 {2, 1, 3}, /* "2:" ==> Physical drive 1, 3rd partition */
72 {3, 1, 4} /* "3:" ==> Physical drive 1, 4th partition */
73 };
74
75 for (i = 0; i < FF_VOLUMES; i++) {
76 SetupVolToPartTable(i, defaultVToP[i], GetCfiBlkOps());
77 }
78 }
79 #endif
80
DiscDrvInit(void)81 int DiscDrvInit(void)
82 {
83
84 #if (LOSCFG_SUPPORT_FATFS == 1)
85 SetupDefaultVolToPartTable();
86 #endif
87
88 return RES_OK;
89 }
90
91