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22#include <common.h>
23#include <malloc.h>
24#include <errno.h>
25#include <div64.h>
26#include <dfu.h>
27
28enum dfu_mmc_op {
29 DFU_OP_READ = 1,
30 DFU_OP_WRITE,
31};
32
33static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
34 dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE];
35static long dfu_file_buf_len;
36
37static int mmc_block_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
38 u64 offset, void *buf, long *len)
39{
40 char cmd_buf[DFU_CMD_BUF_SIZE];
41 u32 blk_start, blk_count;
42
43
44
45
46
47 *len = ALIGN(*len, dfu->data.mmc.lba_blk_size);
48
49 blk_start = dfu->data.mmc.lba_start +
50 (u32)lldiv(offset, dfu->data.mmc.lba_blk_size);
51 blk_count = *len / dfu->data.mmc.lba_blk_size;
52 if (blk_start + blk_count >
53 dfu->data.mmc.lba_start + dfu->data.mmc.lba_size) {
54 puts("Request would exceed designated area!\n");
55 return -EINVAL;
56 }
57
58 sprintf(cmd_buf, "mmc %s %p %x %x",
59 op == DFU_OP_READ ? "read" : "write",
60 buf, blk_start, blk_count);
61
62 debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
63 return run_command(cmd_buf, 0);
64}
65
66static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len)
67{
68 if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE) {
69 dfu_file_buf_len = 0;
70 return -EINVAL;
71 }
72
73
74 memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len);
75 dfu_file_buf_len += *len;
76
77 return 0;
78}
79
80static int mmc_file_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
81 void *buf, long *len)
82{
83 char cmd_buf[DFU_CMD_BUF_SIZE];
84 char *str_env;
85 int ret;
86
87 switch (dfu->layout) {
88 case DFU_FS_FAT:
89 sprintf(cmd_buf, "fat%s mmc %d:%d 0x%x %s",
90 op == DFU_OP_READ ? "load" : "write",
91 dfu->data.mmc.dev, dfu->data.mmc.part,
92 (unsigned int) buf, dfu->name);
93 if (op == DFU_OP_WRITE)
94 sprintf(cmd_buf + strlen(cmd_buf), " %lx", *len);
95 break;
96 case DFU_FS_EXT4:
97 sprintf(cmd_buf, "ext4%s mmc %d:%d 0x%x /%s",
98 op == DFU_OP_READ ? "load" : "write",
99 dfu->data.mmc.dev, dfu->data.mmc.part,
100 (unsigned int) buf, dfu->name);
101 if (op == DFU_OP_WRITE)
102 sprintf(cmd_buf + strlen(cmd_buf), " %ld", *len);
103 break;
104 default:
105 printf("%s: Layout (%s) not (yet) supported!\n", __func__,
106 dfu_get_layout(dfu->layout));
107 return -1;
108 }
109
110 debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
111
112 ret = run_command(cmd_buf, 0);
113 if (ret) {
114 puts("dfu: Read error!\n");
115 return ret;
116 }
117
118 if (dfu->layout != DFU_RAW_ADDR && op == DFU_OP_READ) {
119 str_env = getenv("filesize");
120 if (str_env == NULL) {
121 puts("dfu: Wrong file size!\n");
122 return -1;
123 }
124 *len = simple_strtoul(str_env, NULL, 16);
125 }
126
127 return ret;
128}
129
130int dfu_write_medium_mmc(struct dfu_entity *dfu,
131 u64 offset, void *buf, long *len)
132{
133 int ret = -1;
134
135 switch (dfu->layout) {
136 case DFU_RAW_ADDR:
137 ret = mmc_block_op(DFU_OP_WRITE, dfu, offset, buf, len);
138 break;
139 case DFU_FS_FAT:
140 case DFU_FS_EXT4:
141 ret = mmc_file_buffer(dfu, buf, len);
142 break;
143 default:
144 printf("%s: Layout (%s) not (yet) supported!\n", __func__,
145 dfu_get_layout(dfu->layout));
146 }
147
148 return ret;
149}
150
151int dfu_flush_medium_mmc(struct dfu_entity *dfu)
152{
153 int ret = 0;
154
155 if (dfu->layout != DFU_RAW_ADDR) {
156
157 ret = mmc_file_op(DFU_OP_WRITE, dfu, &dfu_file_buf,
158 &dfu_file_buf_len);
159
160
161 dfu_file_buf_len = 0;
162 }
163
164 return ret;
165}
166
167int dfu_read_medium_mmc(struct dfu_entity *dfu, u64 offset, void *buf,
168 long *len)
169{
170 int ret = -1;
171
172 switch (dfu->layout) {
173 case DFU_RAW_ADDR:
174 ret = mmc_block_op(DFU_OP_READ, dfu, offset, buf, len);
175 break;
176 case DFU_FS_FAT:
177 case DFU_FS_EXT4:
178 ret = mmc_file_op(DFU_OP_READ, dfu, buf, len);
179 break;
180 default:
181 printf("%s: Layout (%s) not (yet) supported!\n", __func__,
182 dfu_get_layout(dfu->layout));
183 }
184
185 return ret;
186}
187
188int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
189{
190 int dev, part;
191 struct mmc *mmc;
192 block_dev_desc_t *blk_dev;
193 disk_partition_t partinfo;
194 char *st;
195
196 dfu->dev_type = DFU_DEV_MMC;
197 st = strsep(&s, " ");
198 if (!strcmp(st, "mmc")) {
199 dfu->layout = DFU_RAW_ADDR;
200 dfu->data.mmc.lba_start = simple_strtoul(s, &s, 16);
201 dfu->data.mmc.lba_size = simple_strtoul(++s, &s, 16);
202 dfu->data.mmc.lba_blk_size = get_mmc_blk_size(dfu->dev_num);
203 } else if (!strcmp(st, "fat")) {
204 dfu->layout = DFU_FS_FAT;
205 } else if (!strcmp(st, "ext4")) {
206 dfu->layout = DFU_FS_EXT4;
207 } else if (!strcmp(st, "part")) {
208
209 dfu->layout = DFU_RAW_ADDR;
210
211 dev = simple_strtoul(s, &s, 10);
212 s++;
213 part = simple_strtoul(s, &s, 10);
214
215 mmc = find_mmc_device(dev);
216 if (mmc == NULL || mmc_init(mmc)) {
217 printf("%s: could not find mmc device #%d!\n",
218 __func__, dev);
219 return -ENODEV;
220 }
221
222 blk_dev = &mmc->block_dev;
223 if (get_partition_info(blk_dev, part, &partinfo) != 0) {
224 printf("%s: could not find partition #%d on mmc device #%d!\n",
225 __func__, part, dev);
226 return -ENODEV;
227 }
228
229 dfu->data.mmc.lba_start = partinfo.start;
230 dfu->data.mmc.lba_size = partinfo.size;
231 dfu->data.mmc.lba_blk_size = partinfo.blksz;
232
233 } else {
234 printf("%s: Memory layout (%s) not supported!\n", __func__, st);
235 return -ENODEV;
236 }
237
238 if (dfu->layout == DFU_FS_EXT4 || dfu->layout == DFU_FS_FAT) {
239 dfu->data.mmc.dev = simple_strtoul(s, &s, 10);
240 dfu->data.mmc.part = simple_strtoul(++s, &s, 10);
241 }
242
243 dfu->read_medium = dfu_read_medium_mmc;
244 dfu->write_medium = dfu_write_medium_mmc;
245 dfu->flush_medium = dfu_flush_medium_mmc;
246
247
248 dfu->inited = 0;
249
250 return 0;
251}
252
