fs/squashfs: fix board hang-up when calling .exists()

[pandora-u-boot.git] / fs / fs.c

diff --git a/fs/fs.c b/fs/fs.c
index 5591c65..fb27c91 100644 (file)
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -3,12 +3,15 @@
  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
  */
 
+#define LOG_CATEGORY LOGC_CORE
+
 #include <command.h>
 #include <config.h>
 #include <errno.h>
 #include <common.h>
 #include <env.h>
 #include <lmb.h>
+#include <log.h>
 #include <mapmem.h>
 #include <part.h>
 #include <ext4fs.h>
@@ -21,6 +24,7 @@
 #include <div64.h>
 #include <linux/math64.h>
 #include <efi_loader.h>
+#include <squashfs.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -32,7 +36,7 @@ static int fs_type = FS_TYPE_ANY;
 static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
                                      struct disk_partition *fs_partition)
 {
-       printf("** Unrecognized filesystem type **\n");
+       log_err("** Unrecognized filesystem type **\n");
        return -1;
 }
 
@@ -57,6 +61,9 @@ static int fs_ls_generic(const char *dirname)
                if (dent->type == FS_DT_DIR) {
                        printf("            %s/\n", dent->name);
                        ndirs++;
+               } else if (dent->type == FS_DT_LNK) {
+                       printf("    <SYM>   %s\n", dent->name);
+                       nfiles++;
                } else {
                        printf(" %8lld   %s\n", dent->size, dent->name);
                        nfiles++;
@@ -275,6 +282,27 @@ static struct fstype_info fstypes[] = {
                .mkdir = fs_mkdir_unsupported,
                .ln = fs_ln_unsupported,
        },
+#endif
+#if IS_ENABLED(CONFIG_FS_SQUASHFS)
+       {
+               .fstype = FS_TYPE_SQUASHFS,
+               .name = "squashfs",
+               .null_dev_desc_ok = false,
+               .probe = sqfs_probe,
+               .opendir = sqfs_opendir,
+               .readdir = sqfs_readdir,
+               .ls = fs_ls_generic,
+               .read = sqfs_read,
+               .size = sqfs_size,
+               .close = sqfs_close,
+               .closedir = sqfs_closedir,
+               .exists = fs_exists_unsupported,
+               .uuid = fs_uuid_unsupported,
+               .write = fs_write_unsupported,
+               .ln = fs_ln_unsupported,
+               .unlink = fs_unlink_unsupported,
+               .mkdir = fs_mkdir_unsupported,
+       },
 #endif
        {
                .fstype = FS_TYPE_ANY,
@@ -489,7 +517,7 @@ static int fs_read_lmb_check(const char *filename, ulong addr, loff_t offset,
        if (lmb_alloc_addr(&lmb, addr, read_len) == addr)
                return 0;
 
-       printf("** Reading file would overwrite reserved memory **\n");
+       log_err("** Reading file would overwrite reserved memory **\n");
        return -ENOSPC;
 }
 #endif
@@ -519,7 +547,7 @@ static int _fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
 
        /* If we requested a specific number of bytes, check we got it */
        if (ret == 0 && len && *actread != len)
-               debug("** %s shorter than offset + len **\n", filename);
+               log_debug("** %s shorter than offset + len **\n", filename);
        fs_close();
 
        return ret;
@@ -543,7 +571,7 @@ int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
        unmap_sysmem(buf);
 
        if (ret < 0 && len != *actwrite) {
-               printf("** Unable to write file %s **\n", filename);
+               log_err("** Unable to write file %s **\n", filename);
                ret = -1;
        }
        fs_close();
@@ -637,7 +665,7 @@ int fs_ln(const char *fname, const char *target)
        ret = info->ln(fname, target);
 
        if (ret < 0) {
-               printf("** Unable to create link %s -> %s **\n", fname, target);
+               log_err("** Unable to create link %s -> %s **\n", fname, target);
                ret = -1;
        }
        fs_close();
@@ -714,15 +742,17 @@ int do_load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
        else
                pos = 0;
 
-#ifdef CONFIG_CMD_BOOTEFI
-       efi_set_bootdev(argv[1], (argc > 2) ? argv[2] : "",
-                       (argc > 4) ? argv[4] : "");
-#endif
        time = get_timer(0);
        ret = _fs_read(filename, addr, pos, bytes, 1, &len_read);
        time = get_timer(time);
-       if (ret < 0)
+       if (ret < 0) {
+               log_err("Failed to load '%s'\n", filename);
                return 1;
+       }
+
+       if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
+               efi_set_bootdev(argv[1], (argc > 2) ? argv[2] : "",
+                               (argc > 4) ? argv[4] : "");
 
        printf("%llu bytes read in %lu ms", len_read, time);
        if (time > 0) {
@@ -881,7 +911,7 @@ int do_mkdir(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 
        ret = fs_mkdir(argv[3]);
        if (ret) {
-               printf("** Unable to create a directory \"%s\" **\n", argv[3]);
+               log_err("** Unable to create a directory \"%s\" **\n", argv[3]);
                return 1;
        }
 
@@ -902,3 +932,23 @@ int do_ln(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 
        return 0;
 }
+
+int do_fs_types(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
+{
+       struct fstype_info *drv = fstypes;
+       const int n_ents = ARRAY_SIZE(fstypes);
+       struct fstype_info *entry;
+       int i = 0;
+
+       puts("Supported filesystems");
+       for (entry = drv; entry != drv + n_ents; entry++) {
+               if (entry->fstype != FS_TYPE_ANY) {
+                       printf("%c %s", i ? ',' : ':', entry->name);
+                       i++;
+               }
+       }
+       if (!i)
+               puts(": <none>");
+       puts("\n");
+       return CMD_RET_SUCCESS;
+}