Move the result variable into the struct also, so that it can be used when BSS is not available. Add a function to read it.
Note that all functions sill use the BSS version of the data.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
Changes in v2: None
cmd/cbfs.c | 4 ++-- fs/cbfs/cbfs.c | 48 ++++++++++++++++++++++++++++-------------------- include/cbfs.h | 7 +++++++ 3 files changed, 37 insertions(+), 22 deletions(-)
diff --git a/cmd/cbfs.c b/cmd/cbfs.c index 3d1fc95972..98e652a4e7 100644 --- a/cmd/cbfs.c +++ b/cmd/cbfs.c @@ -29,7 +29,7 @@ static int do_cbfs_init(cmd_tbl_t *cmdtp, int flag, int argc, } } file_cbfs_init(end_of_rom); - if (file_cbfs_result != CBFS_SUCCESS) { + if (cbfs_get_result() != CBFS_SUCCESS) { printf("%s.\n", file_cbfs_error()); return 1; } @@ -67,7 +67,7 @@ static int do_cbfs_fsload(cmd_tbl_t *cmdtp, int flag, int argc,
file = file_cbfs_find(argv[2]); if (!file) { - if (file_cbfs_result == CBFS_FILE_NOT_FOUND) + if (cbfs_get_result() == CBFS_FILE_NOT_FOUND) printf("%s: %s\n", file_cbfs_error(), argv[2]); else printf("%s.\n", file_cbfs_error()); diff --git a/fs/cbfs/cbfs.c b/fs/cbfs/cbfs.c index daae716297..d9a8562e5c 100644 --- a/fs/cbfs/cbfs.c +++ b/fs/cbfs/cbfs.c @@ -8,7 +8,6 @@ #include <malloc.h> #include <asm/byteorder.h>
-enum cbfs_result file_cbfs_result; static const u32 good_magic = 0x4f524243; static const u8 good_file_magic[] = "LARCHIVE";
@@ -16,13 +15,14 @@ struct cbfs_priv { int initialized; struct cbfs_header header; struct cbfs_cachenode *file_cache; + enum cbfs_result result; };
static struct cbfs_priv cbfs_s;
const char *file_cbfs_error(void) { - switch (file_cbfs_result) { + switch (cbfs_s.result) { case CBFS_SUCCESS: return "Success"; case CBFS_NOT_INITIALIZED: @@ -38,6 +38,11 @@ const char *file_cbfs_error(void) } }
+enum cbfs_result cbfs_get_result(void) +{ + return cbfs_s.result; +} + /* Do endian conversion on the CBFS header structure. */ static void swap_header(struct cbfs_header *dest, struct cbfs_header *src) { @@ -99,7 +104,7 @@ static int file_cbfs_next_file(struct cbfs_priv *priv, u8 *start, u32 size,
swap_file_header(&header, fileHeader); if (header.offset < sizeof(struct cbfs_fileheader)) { - file_cbfs_result = CBFS_BAD_FILE; + priv->result = CBFS_BAD_FILE; return -1; } newNode->next = NULL; @@ -161,7 +166,7 @@ static void file_cbfs_fill_cache(struct cbfs_priv *priv, u8 *start, u32 size, size -= used; start += used; } - file_cbfs_result = CBFS_SUCCESS; + priv->result = CBFS_SUCCESS; }
/* Get the CBFS header out of the ROM and do endian conversion. */ @@ -176,7 +181,7 @@ static int file_cbfs_load_header(uintptr_t end_of_rom,
if (header->magic != good_magic || header->offset > header->rom_size - header->boot_block_size) { - file_cbfs_result = CBFS_BAD_HEADER; + cbfs_s.result = CBFS_BAD_HEADER; return 1; } return 0; @@ -195,7 +200,7 @@ static void cbfs_init(struct cbfs_priv *priv, uintptr_t end_of_rom)
file_cbfs_fill_cache(priv, start_of_rom, priv->header.rom_size, priv->header.align); - if (file_cbfs_result == CBFS_SUCCESS) + if (priv->result == CBFS_SUCCESS) priv->initialized = 1; }
@@ -209,10 +214,10 @@ const struct cbfs_header *file_cbfs_get_header(void) struct cbfs_priv *priv = &cbfs_s;
if (priv->initialized) { - file_cbfs_result = CBFS_SUCCESS; + priv->result = CBFS_SUCCESS; return &priv->header; } else { - file_cbfs_result = CBFS_NOT_INITIALIZED; + priv->result = CBFS_NOT_INITIALIZED; return NULL; } } @@ -222,10 +227,10 @@ const struct cbfs_cachenode *file_cbfs_get_first(void) struct cbfs_priv *priv = &cbfs_s;
if (!priv->initialized) { - file_cbfs_result = CBFS_NOT_INITIALIZED; + priv->result = CBFS_NOT_INITIALIZED; return NULL; } else { - file_cbfs_result = CBFS_SUCCESS; + priv->result = CBFS_SUCCESS; return priv->file_cache; } } @@ -235,14 +240,14 @@ void file_cbfs_get_next(const struct cbfs_cachenode **file) struct cbfs_priv *priv = &cbfs_s;
if (!priv->initialized) { - file_cbfs_result = CBFS_NOT_INITIALIZED; + priv->result = CBFS_NOT_INITIALIZED; *file = NULL; return; }
if (*file) *file = (*file)->next; - file_cbfs_result = CBFS_SUCCESS; + priv->result = CBFS_SUCCESS; }
const struct cbfs_cachenode *cbfs_find_file(struct cbfs_priv *priv, @@ -251,7 +256,7 @@ const struct cbfs_cachenode *cbfs_find_file(struct cbfs_priv *priv, struct cbfs_cachenode *cache_node = priv->file_cache;
if (!priv->initialized) { - file_cbfs_result = CBFS_NOT_INITIALIZED; + priv->result = CBFS_NOT_INITIALIZED; return NULL; }
@@ -261,9 +266,9 @@ const struct cbfs_cachenode *cbfs_find_file(struct cbfs_priv *priv, cache_node = cache_node->next; } if (!cache_node) - file_cbfs_result = CBFS_FILE_NOT_FOUND; + priv->result = CBFS_FILE_NOT_FOUND; else - file_cbfs_result = CBFS_SUCCESS; + priv->result = CBFS_SUCCESS;
return cache_node; } @@ -307,25 +312,28 @@ const struct cbfs_cachenode *file_cbfs_find_uncached(uintptr_t end_of_rom, size -= used; start += used; } - file_cbfs_result = CBFS_FILE_NOT_FOUND; + cbfs_s.result = CBFS_FILE_NOT_FOUND; return NULL; }
const char *file_cbfs_name(const struct cbfs_cachenode *file) { - file_cbfs_result = CBFS_SUCCESS; + cbfs_s.result = CBFS_SUCCESS; + return file->name; }
u32 file_cbfs_size(const struct cbfs_cachenode *file) { - file_cbfs_result = CBFS_SUCCESS; + cbfs_s.result = CBFS_SUCCESS; + return file->data_length; }
u32 file_cbfs_type(const struct cbfs_cachenode *file) { - file_cbfs_result = CBFS_SUCCESS; + cbfs_s.result = CBFS_SUCCESS; + return file->type; }
@@ -339,7 +347,7 @@ long file_cbfs_read(const struct cbfs_cachenode *file, void *buffer, size = maxsize;
memcpy(buffer, file->data, size); + cbfs_s.result = CBFS_SUCCESS;
- file_cbfs_result = CBFS_SUCCESS; return size; } diff --git a/include/cbfs.h b/include/cbfs.h index b8d1dabbf6..742e34e24f 100644 --- a/include/cbfs.h +++ b/include/cbfs.h @@ -90,6 +90,13 @@ extern enum cbfs_result file_cbfs_result; */ const char *file_cbfs_error(void);
+/** + * cbfs_get_result() - Get the result of the last CBFS operation + * + *@return last result + */ +enum cbfs_result cbfs_get_result(void); + /** * file_cbfs_init() - Initialize the CBFS driver and load metadata into RAM. *