static int parse_afs_partitions(struct mtd_info *mtd,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
{
struct mtd_partition *parts;
u_int mask, off, idx, sz;
int ret = 0;
char *str;
/*
* This is the address mask; we use this to mask off out of
* range address bits.
*/
mask = mtd->size - 1;
/*
* First, calculate the size of the array we need for the
* partition information. We include in this the size of
* the strings.
*/
for (idx = off = sz = 0; off < mtd->size; off += mtd->erasesize) {
struct image_info_struct iis;
u_int iis_ptr, img_ptr;
ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
if (ret < 0)
break;
if (ret == 0)
continue;
ret = afs_read_iis(mtd, &iis, iis_ptr);
if (ret < 0)
break;
if (ret == 0)
continue;
sz += sizeof(struct mtd_partition);
sz += strlen(iis.name) + 1;
idx += 1;
}
if (!sz)
return ret;
parts = kzalloc(sz, GFP_KERNEL);
if (!parts)
return -ENOMEM;
str = (char *)(parts + idx);
/*
* Identify the partitions
*/
for (idx = off = 0; off < mtd->size; off += mtd->erasesize) {
struct image_info_struct iis;
u_int iis_ptr, img_ptr;
/* Read the footer. */
ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
if (ret < 0)
break;
if (ret == 0)
continue;
/* Read the image info block */
ret = afs_read_iis(mtd, &iis, iis_ptr);
if (ret < 0)
break;
if (ret == 0)
continue;
strcpy(str, iis.name);
parts[idx].name = str;
parts[idx].size = (iis.length + mtd->erasesize - 1) & ~(mtd->erasesize - 1);
parts[idx].offset = img_ptr;
parts[idx].mask_flags = 0;
printk(" mtd%d: at 0x%08x, %5lluKiB, %8u, %s\n",
idx, img_ptr, parts[idx].size / 1024,
iis.imageNumber, str);
idx += 1;
str = str + strlen(iis.name) + 1;
}
if (!idx) {
kfree(parts);
parts = NULL;
}
*pparts = parts;
return idx ? idx : ret;
}
int parse_afs_partitions(struct mtd_info *mtd, struct mtd_partition **pparts)
{
struct mtd_partition *parts;
u_int mask, off, idx, sz;
int ret = 0;
char *str;
/*
* This is the address mask; we use this to mask off out of
* range address bits.
*/
mask = mtd->size - 1;
/*
* First, calculate the size of the array we need for the
* partition information. We include in this the size of
* the strings.
*/
for (idx = off = sz = 0; off < mtd->size; off += mtd->erasesize) {
struct image_info_struct iis;
u_int iis_ptr, img_ptr;
ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
if (ret < 0)
break;
if (ret == 1)
continue;
ret = afs_read_iis(mtd, &iis, iis_ptr);
if (ret < 0)
break;
sz += sizeof(struct mtd_partition);
sz += strlen(iis.name) + 1;
idx += 1;
}
if (!sz)
return ret;
parts = kmalloc(sz, GFP_KERNEL);
if (!parts)
return -ENOMEM;
str = (char *)(parts + idx);
/*
* Identify the partitions
*/
for (idx = off = 0; off < mtd->size; off += mtd->erasesize) {
struct image_info_struct iis;
u_int iis_ptr, img_ptr, size;
/* Read the footer. */
ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
if (ret < 0)
break;
if (ret == 1)
continue;
/* Read the image info block */
ret = afs_read_iis(mtd, &iis, iis_ptr);
if (ret < 0)
break;
strcpy(str, iis.name);
size = mtd->erasesize + off - img_ptr;
/*
* In order to support JFFS2 partitions on this layout,
* we must lie to MTD about the real size of JFFS2
* partitions; this ensures that the AFS flash footer
* won't be erased by JFFS2. Please ensure that your
* JFFS2 partitions are given image numbers between
* 1000 and 2000 inclusive.
*/
if (iis.imageNumber >= 1000 && iis.imageNumber < 2000)
size -= mtd->erasesize;
parts[idx].name = str;
parts[idx].size = size;
parts[idx].offset = img_ptr;
parts[idx].mask_flags = 0;
printk(" mtd%d: at 0x%08x, %5dKB, %8u, %s\n",
idx, img_ptr, parts[idx].size / 1024,
iis.imageNumber, str);
idx += 1;
str = str + strlen(iis.name) + 1;
}
if (!idx) {
kfree(parts);
parts = NULL;
}
*pparts = parts;
return idx ? idx : ret;
}
