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authorDavid Woodhouse <dwmw2@infradead.org>2008-06-26 13:55:30 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-10 14:47:42 +0100
commit59890f74e51abffd0dd017785d89f8a8475d489d (patch)
treedcbb789ceaa239e5fd818a7018ad20aa79395b05 /firmware
parent8bd6b2229bf98761465020467ec33547d05bff46 (diff)
downloadconfigs-59890f74e51abffd0dd017785d89f8a8475d489d.tar.gz
ihex: Add support for long records to ihex2fw.c
Some drivers could do with using records like Intel HEX, but with each record being larger than 256 bytes. This has been possible in the binary representation (struct ihex_binrec) in the kernel since the beginning -- at least of the the current version of history. But we haven't been able to represent that in the .HEX files which get converted to .fw files. This adds a '-w' option to ihex2fw to make it interpret the first _two_ bytes of each line as the record length, instead of only one byte. And adds makefile rules for %.H16->%.fw which use that. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'firmware')
-rw-r--r--firmware/Makefile7
-rw-r--r--firmware/ihex2fw.c59
2 files changed, 47 insertions, 19 deletions
diff --git a/firmware/Makefile b/firmware/Makefile
index 9e780a331e1..40881a96be0 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -35,6 +35,9 @@ quiet_cmd_ihex = IHEX $@
quiet_cmd_ihex2fw = IHEX2FW $@
cmd_ihex2fw = $(objtree)/$(obj)/ihex2fw $< $@
+quiet_cmd_h16tofw = H16TOFW $@
+ cmd_h16tofw = $(objtree)/$(obj)/ihex2fw -w $< $@
+
quiet_cmd_fwbin = MK_FW $@
cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)"; \
FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst \
@@ -99,6 +102,10 @@ $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %)
$(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
$(call cmd,ihex2fw)
+# .H16 is our own modified form of Intel HEX, with 16-bit length for records.
+$(obj)/%.fw: $(obj)/%.H16 $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
+ $(call cmd,h16tofw)
+
$(firmware-dirs):
$(call cmd,mkdir)
diff --git a/firmware/ihex2fw.c b/firmware/ihex2fw.c
index 9e77cd2f715..660b191ed75 100644
--- a/firmware/ihex2fw.c
+++ b/firmware/ihex2fw.c
@@ -20,6 +20,9 @@
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+
struct ihex_binrec {
struct ihex_binrec *next; /* not part of the real data structure */
@@ -51,34 +54,49 @@ static void file_record(struct ihex_binrec *record);
static int output_records(int outfd);
static int sort_records = 0;
+static int wide_records = 0;
+
+int usage(void)
+{
+ fprintf(stderr, "ihex2fw: Convert ihex files into binary "
+ "representation for use by Linux kernel\n");
+ fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n");
+ fprintf(stderr, " -w: wide records (16-bit length)\n");
+ fprintf(stderr, " -s: sort records by address\n");
+ return 1;
+}
int main(int argc, char **argv)
{
int infd, outfd;
struct stat st;
uint8_t *data;
+ int opt;
- if (argc == 4 && !strcmp(argv[1], "-s")) {
- sort_records = 1;
- argc--;
- argv++;
- }
- if (argc != 3) {
- usage:
- fprintf(stderr, "ihex2fw: Convert ihex files into binary "
- "representation for use by Linux kernel\n");
- fprintf(stderr, "usage: ihex2fw [-s] <src.HEX> <dst.fw>\n");
- fprintf(stderr, " -s: sort records by address\n");
- return 1;
+ while ((opt = getopt(argc, argv, "ws")) != -1) {
+ switch (opt) {
+ case 'w':
+ wide_records = 1;
+ break;
+ case 's':
+ sort_records = 1;
+ break;
+ default:
+ return usage();
+ }
}
- if (!strcmp(argv[1], "-"))
+
+ if (optind + 2 != argc)
+ return usage();
+
+ if (!strcmp(argv[optind], "-"))
infd = 0;
else
- infd = open(argv[1], O_RDONLY);
+ infd = open(argv[optind], O_RDONLY);
if (infd == -1) {
fprintf(stderr, "Failed to open source file: %s",
strerror(errno));
- goto usage;
+ return usage();
}
if (fstat(infd, &st)) {
perror("stat");
@@ -90,14 +108,14 @@ int main(int argc, char **argv)
return 1;
}
- if (!strcmp(argv[2], "-"))
+ if (!strcmp(argv[optind+1], "-"))
outfd = 1;
else
- outfd = open(argv[2], O_TRUNC|O_CREAT|O_WRONLY, 0644);
+ outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644);
if (outfd == -1) {
fprintf(stderr, "Failed to open destination file: %s",
strerror(errno));
- goto usage;
+ return usage();
}
if (process_ihex(data, st.st_size))
return 1;
@@ -130,7 +148,10 @@ next_record:
}
len = hex(data + i, &crc); i += 2;
-
+ if (wide_records) {
+ len <<= 8;
+ len += hex(data + i, &crc); i += 2;
+ }
record = malloc((sizeof (*record) + len + 3) & ~3);
if (!record) {
fprintf(stderr, "out of memory for records\n");