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Read out very long file, but not very long name

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This commit is contained in:
Byron Lathi
2023-12-05 08:29:44 -08:00
parent 13738fc0d8
commit 9ae1593957
4 changed files with 59 additions and 3 deletions
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1
sw/kernel/filesystems/fat32.h
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@@ -41,5 +41,6 @@ struct lfn_entry {
int8_t fat32_get_cluster_by_name(char* name, struct fat32_directory_entry* dentry);
int8_t fat32_read_cluster(uint32_t cluster, void* buf);
uint32_t fat32_next_cluster(uint32_t cluster);
#endif

13
sw/kernel/filesystems/fat32_c.c
View File

@@ -12,10 +12,23 @@ int8_t fat32_read_cluster(uint32_t cluster, void* buf) {
return error;
}
uint32_t fat32_next_cluster(uint32_t cluster) {
uint8_t error;
uint32_t addr = fat_start_sector;
uint32_t cluster_val;
SD_readSingleBlock(addr, sd_buf, &error);
cluster_val = ((uint32_t*)sd_buf)[cluster];
return cluster_val;
}
int8_t fat32_get_cluster_by_name(char* name, struct fat32_directory_entry* dentry) {
struct fat32_directory_entry* local_entry;
int i = 0;
uint32_t cluster;
cluster = fat32_next_cluster(root_cluster);
cprintf("Sectors per cluster: %hhx\n", sectors_per_cluster);
fat32_read_cluster(root_cluster, sd_buf);