Hi Simon,
On Wed, May 13, 2020 at 10:24 PM Simon Glass <s...@chromium.org> wrote:
>
> Currently we support reading a file from CBFS given the address of the end
> of the ROM. Sometimes we only know the start of the CBFS. Add a function
> to find a file given that.
>
> Signed-off-by: Simon Glass <s...@chromium.org>
> ---
>
> fs/cbfs/cbfs.c | 13 +++++++++++++
> include/cbfs.h | 11 +++++++++++
> 2 files changed, 24 insertions(+)
>
> diff --git a/fs/cbfs/cbfs.c b/fs/cbfs/cbfs.c
> index 76613fa871..1603409a8f 100644
> --- a/fs/cbfs/cbfs.c
> +++ b/fs/cbfs/cbfs.c
> @@ -413,6 +413,19 @@ int file_cbfs_find_uncached(ulong end_of_rom, const char
> *name,
> return find_uncached(&priv, name, start, node);
> }
>
> +int file_cbfs_find_uncached_base(ulong base, const char *name,
> + struct cbfs_cachenode *node)
> +{
> + struct cbfs_priv priv;
> + int ret;
> +
> + ret = cbfs_load_header_ptr(&priv, base);
> + if (ret)
> + return ret;
> +
> + return find_uncached(&priv, name, (u8 *)base, node);
(void *)base
> +}
> +
> const char *file_cbfs_name(const struct cbfs_cachenode *file)
> {
> cbfs_s.result = CBFS_SUCCESS;
> diff --git a/include/cbfs.h b/include/cbfs.h
> index 4dd3c0795d..b1a8d2cad2 100644
> --- a/include/cbfs.h
> +++ b/include/cbfs.h
> @@ -173,6 +173,17 @@ int cbfs_init_mem(ulong base, ulong size, struct
> cbfs_priv **privp);
> int file_cbfs_find_uncached(ulong end_of_rom, const char *name,
> struct cbfs_cachenode *node);
>
> +/**
> + * file_cbfs_find_uncached() - Find a file in CBFS without using the heap
file_cbfs_find_uncached_base(), and the description is wrong
> + *
> + * @base: Points to the base of the CBFS
> + * @name: The name to search for
> + * @node: Returns the node if found
> + * @return 0 on success, -ENOENT if not found, -EFAULT on bad header
> + */
> +int file_cbfs_find_uncached_base(ulong base, const char *name,
> + struct cbfs_cachenode *node);
> +
> /**
> * file_cbfs_name() - Get the name of a file in CBFS.
> *
Regards,
Bin
