At least bitstreams for FPGAs can consist of a lot of zeros depending on device utilization. These bitstreams can be compressed very effectively. Let the firmware code accept these images and decompress them before handing it to the firmware-manager in question. Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx> --- common/firmware.c | 43 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 5 deletions(-) diff --git a/common/firmware.c b/common/firmware.c index 58509d5da615..c617ecc0f129 100644 --- a/common/firmware.c +++ b/common/firmware.c @@ -14,6 +14,8 @@ #include <linux/list.h> #include <linux/stat.h> #include <linux/err.h> +#include <uncompress.h> +#include <filetype.h> #define BUFSIZ 4096 @@ -211,12 +213,43 @@ int firmwaremgr_register(struct firmware_handler *fh) */ int firmwaremgr_load_file(struct firmware_mgr *mgr, const char *firmware) { - int ret; - char *name = basprintf("/dev/%s", mgr->handler->id); - - ret = copy_file(firmware, name, 0); + char *dst; + enum filetype type; + int ret = -ENOENT; + int srcfd = 0; + int dstfd = 0; + + if (mgr->handler->id) { + dst = basprintf("/dev/%s", mgr->handler->id); + } else { + pr_err("id not defined for handler\n"); + return -ENODEV; + } - free(name); + if (firmware) { + type = file_name_detect_type(firmware); + if (type == filetype_unknown) { + ret = copy_file(firmware, dst, 0); + } else { + srcfd = open(firmware, O_RDONLY); + if (srcfd < 0) + return srcfd; + dstfd = open(dst, O_WRONLY | O_CREAT); + + if (dstfd < 0) { + printf("could not open %s: %s\n", dst, errno_str()); + ret = dstfd; + goto out; + } + + ret = uncompress_fd_to_fd(srcfd, dstfd, uncompress_err_stdout); + + close(dstfd); + } + } +out: + close(srcfd); + free(dst); return ret; } -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox