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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* dfu.c -- DFU back-end routines
*
* Copyright (C) 2012 Samsung Electronics
* author: Lukasz Majewski <l.majewski@samsung.com>
*
* 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
*/
#include <common.h>
#include <malloc.h>
#include <dfu.h>
enum dfu_mmc_op {
DFU_OP_READ = 1,
DFU_OP_WRITE,
};
static int mmc_block_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
void *buf, long *len)
{
char cmd_buf[DFU_CMD_BUF_SIZE];
sprintf(cmd_buf, "mmc %s 0x%x %x %x",
op == DFU_OP_READ ? "read" : "write",
(unsigned int) buf,
dfu->data.mmc.lba_start,
dfu->data.mmc.lba_size);
if (op == DFU_OP_READ)
*len = dfu->data.mmc.lba_blk_size * dfu->data.mmc.lba_size;
debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
return run_command(cmd_buf, 0);
}
static inline int mmc_block_write(struct dfu_entity *dfu, void *buf, long *len)
{
return mmc_block_op(DFU_OP_WRITE, dfu, buf, len);
}
static inline int mmc_block_read(struct dfu_entity *dfu, void *buf, long *len)
{
return mmc_block_op(DFU_OP_READ, dfu, buf, len);
}
static int mmc_file_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
void *buf, long *len)
{
char cmd_buf[DFU_CMD_BUF_SIZE];
char *str_env;
int ret;
sprintf(cmd_buf, "fat%s mmc %d:%d 0x%x %s %lx",
op == DFU_OP_READ ? "load" : "write",
dfu->data.mmc.dev, dfu->data.mmc.part,
(unsigned int) buf, dfu->name, *len);
debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
ret = run_command(cmd_buf, 0);
if (ret) {
puts("dfu: Read error!\n");
return ret;
}
if (dfu->layout != DFU_RAW_ADDR) {
str_env = getenv("filesize");
if (str_env == NULL) {
puts("dfu: Wrong file size!\n");
return -1;
}
*len = simple_strtoul(str_env, NULL, 16);
}
return ret;
}
static inline int mmc_file_write(struct dfu_entity *dfu, void *buf, long *len)
{
return mmc_file_op(DFU_OP_WRITE, dfu, buf, len);
}
static inline int mmc_file_read(struct dfu_entity *dfu, void *buf, long *len)
{
return mmc_file_op(DFU_OP_READ, dfu, buf, len);
}
int dfu_write_medium_mmc(struct dfu_entity *dfu, void *buf, long *len)
{
int ret = -1;
switch (dfu->layout) {
case DFU_RAW_ADDR:
ret = mmc_block_write(dfu, buf, len);
break;
case DFU_FS_FAT:
ret = mmc_file_write(dfu, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
}
return ret;
}
int dfu_read_medium_mmc(struct dfu_entity *dfu, void *buf, long *len)
{
int ret = -1;
switch (dfu->layout) {
case DFU_RAW_ADDR:
ret = mmc_block_read(dfu, buf, len);
break;
case DFU_FS_FAT:
ret = mmc_file_read(dfu, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
}
return ret;
}
int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
{
char *st;
dfu->dev_type = DFU_DEV_MMC;
st = strsep(&s, " ");
if (!strcmp(st, "mmc")) {
dfu->layout = DFU_RAW_ADDR;
dfu->data.mmc.lba_start = simple_strtoul(s, &s, 16);
dfu->data.mmc.lba_size = simple_strtoul(++s, &s, 16);
dfu->data.mmc.lba_blk_size = get_mmc_blk_size(dfu->dev_num);
} else if (!strcmp(st, "fat")) {
dfu->layout = DFU_FS_FAT;
dfu->data.mmc.dev = simple_strtoul(s, &s, 10);
dfu->data.mmc.part = simple_strtoul(++s, &s, 10);
} else {
printf("%s: Memory layout (%s) not supported!\n", __func__, st);
}
dfu->read_medium = dfu_read_medium_mmc;
dfu->write_medium = dfu_write_medium_mmc;
return 0;
}
|
