]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - fs/fs.c
mmc: omap_hsmmc: enable 8bit interface for eMMC for AM43xx
[karo-tx-uboot.git] / fs / fs.c
diff --git a/fs/fs.c b/fs/fs.c
index 0cbec9958e7631001138c56fb2f1c20df28aa4ce..ac0897d94a08625de0bca16a913d8fcdb6392884 100644 (file)
--- a/fs/fs.c
+++ b/fs/fs.c
  */
 
 #include <config.h>
+#include <errno.h>
 #include <common.h>
+#include <mapmem.h>
 #include <part.h>
 #include <ext4fs.h>
 #include <fat.h>
 #include <fs.h>
+#include <sandboxfs.h>
 #include <asm/io.h>
+#include <div64.h>
+#include <linux/math64.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -40,154 +45,130 @@ static inline int fs_ls_unsupported(const char *dirname)
        return -1;
 }
 
-static inline int fs_read_unsupported(const char *filename, void *buf,
-                                     int offset, int len)
-{
-       return -1;
-}
-
-static inline void fs_close_unsupported(void)
-{
-}
-
-#ifdef CONFIG_FS_FAT
-static int fs_probe_fat(block_dev_desc_t *fs_dev_desc,
-                       disk_partition_t *fs_partition)
-{
-       return fat_set_blk_dev(fs_dev_desc, fs_partition);
-}
-
-static void fs_close_fat(void)
+static inline int fs_exists_unsupported(const char *filename)
 {
+       return 0;
 }
 
-#define fs_ls_fat file_fat_ls
-
-static int fs_read_fat(const char *filename, void *buf, int offset, int len)
-{
-       int len_read;
-
-       len_read = file_fat_read_at(filename, offset, buf, len);
-       if (len_read == -1) {
-               printf("** Unable to read file %s **\n", filename);
-               return -1;
-       }
-
-       return len_read;
-}
-#else
-static inline int fs_probe_fat(void)
+static inline int fs_size_unsupported(const char *filename, loff_t *size)
 {
        return -1;
 }
 
-static inline void fs_close_fat(void)
+static inline int fs_read_unsupported(const char *filename, void *buf,
+                                     loff_t offset, loff_t len,
+                                     loff_t *actread)
 {
+       return -1;
 }
 
-#define fs_ls_fat fs_ls_unsupported
-#define fs_read_fat fs_read_unsupported
-#endif
-
-#ifdef CONFIG_FS_EXT4
-static int fs_probe_ext(block_dev_desc_t *fs_dev_desc,
-                       disk_partition_t *fs_partition)
+static inline int fs_write_unsupported(const char *filename, void *buf,
+                                     loff_t offset, loff_t len,
+                                     loff_t *actwrite)
 {
-       ext4fs_set_blk_dev(fs_dev_desc, fs_partition);
-
-       if (!ext4fs_mount(fs_partition->size)) {
-               ext4fs_close();
-               return -1;
-       }
-
-       return 0;
+       return -1;
 }
 
-static void fs_close_ext(void)
+static inline void fs_close_unsupported(void)
 {
-       ext4fs_close();
 }
 
-#define fs_ls_ext ext4fs_ls
-
-static int fs_read_ext(const char *filename, void *buf, int offset, int len)
-{
-       int file_len;
-       int len_read;
-
-       if (offset != 0) {
-               printf("** Cannot support non-zero offset **\n");
-               return -1;
-       }
-
-       file_len = ext4fs_open(filename);
-       if (file_len < 0) {
-               printf("** File not found %s **\n", filename);
-               ext4fs_close();
-               return -1;
-       }
-
-       if (len == 0)
-               len = file_len;
-
-       len_read = ext4fs_read(buf, len);
-       ext4fs_close();
-
-       if (len_read != len) {
-               printf("** Unable to read file %s **\n", filename);
-               return -1;
-       }
-
-       return len_read;
-}
-#else
-static inline int fs_probe_ext(void)
+static inline int fs_uuid_unsupported(char *uuid_str)
 {
        return -1;
 }
 
-static inline void fs_close_ext(void)
-{
-}
-
-#define fs_ls_ext fs_ls_unsupported
-#define fs_read_ext fs_read_unsupported
-#endif
-
 struct fstype_info {
        int fstype;
+       char *name;
+       /*
+        * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
+        * should be false in most cases. For "virtual" filesystems which
+        * aren't based on a U-Boot block device (e.g. sandbox), this can be
+        * set to true. This should also be true for the dumm entry at the end
+        * of fstypes[], since that is essentially a "virtual" (non-existent)
+        * filesystem.
+        */
+       bool null_dev_desc_ok;
        int (*probe)(block_dev_desc_t *fs_dev_desc,
                     disk_partition_t *fs_partition);
        int (*ls)(const char *dirname);
-       int (*read)(const char *filename, void *buf, int offset, int len);
+       int (*exists)(const char *filename);
+       int (*size)(const char *filename, loff_t *size);
+       int (*read)(const char *filename, void *buf, loff_t offset,
+                   loff_t len, loff_t *actread);
+       int (*write)(const char *filename, void *buf, loff_t offset,
+                    loff_t len, loff_t *actwrite);
        void (*close)(void);
+       int (*uuid)(char *uuid_str);
 };
 
 static struct fstype_info fstypes[] = {
 #ifdef CONFIG_FS_FAT
        {
                .fstype = FS_TYPE_FAT,
-               .probe = fs_probe_fat,
-               .close = fs_close_fat,
+               .name = "fat",
+               .null_dev_desc_ok = false,
+               .probe = fat_set_blk_dev,
+               .close = fat_close,
                .ls = file_fat_ls,
-               .read = fs_read_fat,
+               .exists = fat_exists,
+               .size = fat_size,
+               .read = fat_read_file,
+#ifdef CONFIG_FAT_WRITE
+               .write = file_fat_write,
+#else
+               .write = fs_write_unsupported,
+#endif
+               .uuid = fs_uuid_unsupported,
        },
 #endif
 #ifdef CONFIG_FS_EXT4
        {
                .fstype = FS_TYPE_EXT,
-               .probe = fs_probe_ext,
-               .close = fs_close_ext,
+               .name = "ext4",
+               .null_dev_desc_ok = false,
+               .probe = ext4fs_probe,
+               .close = ext4fs_close,
                .ls = ext4fs_ls,
-               .read = fs_read_ext,
+               .exists = ext4fs_exists,
+               .size = ext4fs_size,
+               .read = ext4_read_file,
+#ifdef CONFIG_CMD_EXT4_WRITE
+               .write = ext4_write_file,
+#else
+               .write = fs_write_unsupported,
+#endif
+               .uuid = ext4fs_uuid,
+       },
+#endif
+#ifdef CONFIG_SANDBOX
+       {
+               .fstype = FS_TYPE_SANDBOX,
+               .name = "sandbox",
+               .null_dev_desc_ok = true,
+               .probe = sandbox_fs_set_blk_dev,
+               .close = sandbox_fs_close,
+               .ls = sandbox_fs_ls,
+               .exists = sandbox_fs_exists,
+               .size = sandbox_fs_size,
+               .read = fs_read_sandbox,
+               .write = fs_write_sandbox,
+               .uuid = fs_uuid_unsupported,
        },
 #endif
        {
                .fstype = FS_TYPE_ANY,
+               .name = "unsupported",
+               .null_dev_desc_ok = true,
                .probe = fs_probe_unsupported,
                .close = fs_close_unsupported,
                .ls = fs_ls_unsupported,
+               .exists = fs_exists_unsupported,
+               .size = fs_size_unsupported,
                .read = fs_read_unsupported,
+               .write = fs_write_unsupported,
+               .uuid = fs_uuid_unsupported,
        },
 };
 
@@ -215,10 +196,12 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
        if (!relocated) {
                for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
                                i++, info++) {
+                       info->name += gd->reloc_off;
                        info->probe += gd->reloc_off;
                        info->close += gd->reloc_off;
                        info->ls += gd->reloc_off;
                        info->read += gd->reloc_off;
+                       info->write += gd->reloc_off;
                }
                relocated = 1;
        }
@@ -234,6 +217,9 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
                                fstype != info->fstype)
                        continue;
 
+               if (!fs_dev_desc && !info->null_dev_desc_ok)
+                       continue;
+
                if (!info->probe(fs_dev_desc, &fs_partition)) {
                        fs_type = info->fstype;
                        return 0;
@@ -248,9 +234,17 @@ static void fs_close(void)
        struct fstype_info *info = fs_get_info(fs_type);
 
        info->close();
+
        fs_type = FS_TYPE_ANY;
 }
 
+int fs_uuid(char *uuid_str)
+{
+       struct fstype_info *info = fs_get_info(fs_type);
+
+       return info->uuid(uuid_str);
+}
+
 int fs_ls(const char *dirname)
 {
        int ret;
@@ -259,12 +253,40 @@ int fs_ls(const char *dirname)
 
        ret = info->ls(dirname);
 
+       fs_type = FS_TYPE_ANY;
+       fs_close();
+
+       return ret;
+}
+
+int fs_exists(const char *filename)
+{
+       int ret;
+
+       struct fstype_info *info = fs_get_info(fs_type);
+
+       ret = info->exists(filename);
+
+       fs_close();
+
+       return ret;
+}
+
+int fs_size(const char *filename, loff_t *size)
+{
+       int ret;
+
+       struct fstype_info *info = fs_get_info(fs_type);
+
+       ret = info->size(filename, size);
+
        fs_close();
 
        return ret;
 }
 
-int fs_read(const char *filename, ulong addr, int offset, int len)
+int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
+           loff_t *actread)
 {
        struct fstype_info *info = fs_get_info(fs_type);
        void *buf;
@@ -275,11 +297,11 @@ int fs_read(const char *filename, ulong addr, int offset, int len)
         * means read the whole file.
         */
        buf = map_sysmem(addr, len);
-       ret = info->read(filename, buf, offset, len);
+       ret = info->read(filename, buf, offset, len, actread);
        unmap_sysmem(buf);
 
        /* If we requested a specific number of bytes, check we got it */
-       if (ret >= 0 && len && ret != len) {
+       if (ret == 0 && len && *actread != len) {
                printf("** Unable to read file %s **\n", filename);
                ret = -1;
        }
@@ -288,16 +310,57 @@ int fs_read(const char *filename, ulong addr, int offset, int len)
        return ret;
 }
 
+int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
+            loff_t *actwrite)
+{
+       struct fstype_info *info = fs_get_info(fs_type);
+       void *buf;
+       int ret;
+
+       buf = map_sysmem(addr, len);
+       ret = info->write(filename, buf, offset, len, actwrite);
+       unmap_sysmem(buf);
+
+       if (ret < 0 && len != *actwrite) {
+               printf("** Unable to write file %s **\n", filename);
+               ret = -1;
+       }
+       fs_close();
+
+       return ret;
+}
+
+int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+               int fstype)
+{
+       loff_t size;
+
+       if (argc != 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], fstype))
+               return 1;
+
+       if (fs_size(argv[3], &size) < 0)
+               return CMD_RET_FAILURE;
+
+       setenv_hex("filesize", size);
+
+       return 0;
+}
+
 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-               int fstype, int cmdline_base)
+               int fstype)
 {
        unsigned long addr;
        const char *addr_str;
        const char *filename;
-       unsigned long bytes;
-       unsigned long pos;
-       int len_read;
+       loff_t bytes;
+       loff_t pos;
+       loff_t len_read;
+       int ret;
        unsigned long time;
+       char *ep;
 
        if (argc < 2)
                return CMD_RET_USAGE;
@@ -308,7 +371,9 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                return 1;
 
        if (argc >= 4) {
-               addr = simple_strtoul(argv[3], NULL, cmdline_base);
+               addr = simple_strtoul(argv[3], &ep, 16);
+               if (ep == argv[3] || *ep != '\0')
+                       return CMD_RET_USAGE;
        } else {
                addr_str = getenv("loadaddr");
                if (addr_str != NULL)
@@ -326,24 +391,24 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                }
        }
        if (argc >= 6)
-               bytes = simple_strtoul(argv[5], NULL, cmdline_base);
+               bytes = simple_strtoul(argv[5], NULL, 16);
        else
                bytes = 0;
        if (argc >= 7)
-               pos = simple_strtoul(argv[6], NULL, cmdline_base);
+               pos = simple_strtoul(argv[6], NULL, 16);
        else
                pos = 0;
 
        time = get_timer(0);
-       len_read = fs_read(filename, addr, pos, bytes);
+       ret = fs_read(filename, addr, pos, bytes, &len_read);
        time = get_timer(time);
-       if (len_read <= 0)
+       if (ret < 0)
                return 1;
 
-       printf("%d bytes read in %lu ms", len_read, time);
+       printf("%llu bytes read in %lu ms", len_read, time);
        if (time > 0) {
                puts(" (");
-               print_size(len_read / time * 1000, "/s");
+               print_size(div_u64(len_read, time) * 1000, "/s");
                puts(")");
        }
        puts("\n");
@@ -369,3 +434,100 @@ int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 
        return 0;
 }
+
+int file_exists(const char *dev_type, const char *dev_part, const char *file,
+               int fstype)
+{
+       if (fs_set_blk_dev(dev_type, dev_part, fstype))
+               return 0;
+
+       return fs_exists(file);
+}
+
+int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+               int fstype)
+{
+       unsigned long addr;
+       const char *filename;
+       loff_t bytes;
+       loff_t pos;
+       loff_t len;
+       int ret;
+       unsigned long time;
+
+       if (argc < 6 || argc > 7)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], fstype))
+               return 1;
+
+       addr = simple_strtoul(argv[3], NULL, 16);
+       filename = argv[4];
+       bytes = simple_strtoul(argv[5], NULL, 16);
+       if (argc >= 7)
+               pos = simple_strtoul(argv[6], NULL, 16);
+       else
+               pos = 0;
+
+       time = get_timer(0);
+       ret = fs_write(filename, addr, pos, bytes, &len);
+       time = get_timer(time);
+       if (ret < 0)
+               return 1;
+
+       printf("%llu bytes written in %lu ms", len, time);
+       if (time > 0) {
+               puts(" (");
+               print_size(div_u64(len, time) * 1000, "/s");
+               puts(")");
+       }
+       puts("\n");
+
+       return 0;
+}
+
+int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+               int fstype)
+{
+       int ret;
+       char uuid[37];
+       memset(uuid, 0, sizeof(uuid));
+
+       if (argc < 3 || argc > 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], fstype))
+               return 1;
+
+       ret = fs_uuid(uuid);
+       if (ret)
+               return CMD_RET_FAILURE;
+
+       if (argc == 4)
+               setenv(argv[3], uuid);
+       else
+               printf("%s\n", uuid);
+
+       return CMD_RET_SUCCESS;
+}
+
+int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       struct fstype_info *info;
+
+       if (argc < 3 || argc > 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
+               return 1;
+
+       info = fs_get_info(fs_type);
+
+       if (argc == 4)
+               setenv(argv[3], info->name);
+       else
+               printf("%s\n", info->name);
+
+       return CMD_RET_SUCCESS;
+}
+