From 5673e0b703a1cb5037c8763dc7d9ea8e5c51ced4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 12 Feb 2015 07:23:40 +0000 Subject: [PATCH] kernel: mtdsplit_uimage: add parser for Edimax devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki SVN-Revision: 44413 --- .../drivers/mtd/mtdsplit/mtdsplit_uimage.c | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c index fa89f33ac0..04a0eb47d7 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c @@ -295,10 +295,63 @@ static struct mtd_part_parser uimage_netgear_parser = { .type = MTD_PARSER_TYPE_FIRMWARE, }; +/************************************************** + * Edimax + **************************************************/ + +#define FW_EDIMAX_OFFSET 20 +#define FW_MAGIC_EDIMAX 0x43535953 + +static ssize_t uimage_find_edimax(u_char *buf, size_t len) +{ + struct uimage_header *header; + + if (len < FW_EDIMAX_OFFSET + sizeof(*header)) { + pr_err("Buffer too small for checking Edimax header\n"); + return -ENOSPC; + } + + header = (struct uimage_header *)(buf + FW_EDIMAX_OFFSET); + + switch be32_to_cpu(header->ih_magic) { + case FW_MAGIC_EDIMAX: + break; + default: + return -EINVAL; + } + + if (header->ih_os != IH_OS_LINUX || + header->ih_type != IH_TYPE_FILESYSTEM) + return -EINVAL; + + return FW_EDIMAX_OFFSET; +} + +static int +mtdsplit_uimage_parse_edimax(struct mtd_info *master, + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + return __mtdsplit_parse_uimage(master, pparts, data, + uimage_find_edimax); +} + +static struct mtd_part_parser uimage_edimax_parser = { + .owner = THIS_MODULE, + .name = "edimax-fw", + .parse_fn = mtdsplit_uimage_parse_edimax, + .type = MTD_PARSER_TYPE_FIRMWARE, +}; + +/************************************************** + * Init + **************************************************/ + static int __init mtdsplit_uimage_init(void) { register_mtd_parser(&uimage_generic_parser); register_mtd_parser(&uimage_netgear_parser); + register_mtd_parser(&uimage_edimax_parser); return 0; }