allow specifying supported peripherals

1 files changed, 31 insertions, 16 deletions

diff --git a/src/satmkboot.c b/src/satmkboot.c
index 7faaf4c..d3b5958 100644
--- a/src/satmkboot.c
+++ b/src/satmkboot.c
@@ -14,7 +14,7 @@ static struct systemid sysid = {
 	.reldate      = "20000101",
 	.device       = "CD-1/1  ",
 	.regions      = "          ",
-	.peripherals  = "J               ",
+	.peripherals  = "                ",
 	.bootsize     = 0xe00,
 	.stack_master = 0,
 	.stack_slave  = 0,
@@ -130,19 +130,22 @@ static void usage(const char *progname)
 	const int width = 20;
 
 	fprintf(stderr, "usage: %s -h\n", progname);
-	fprintf(stderr, "       %s -io[r]\n\n", progname);
+	fprintf(stderr, "       %s -io[pr]\n\n", progname);
 	fprintf(stderr, "\t%-*s%s\n", width, "-h",              "Show this help text");
 	fprintf(stderr, "\t%-*s%s\n", width, "-i ip.bin",       "Initial program code file");
 	fprintf(stderr, "\t%-*s%s\n", width, "-o output",       "Output file");
-	fprintf(stderr, "\t%-*s%s\n", width, "-r regions",      "Geographical regions (default all):");
+	fprintf(stderr, "\t%-*s%s\n", width, "-p peripherals",  "Supported peripherals (default: control pad):");
+	print_symbols(stderr, width, peripheraldefs);
+	fprintf(stderr, "\t%-*s%s\n", width, "-r regions",      "Geographical regions (default: all):");
 	print_symbols(stderr, width, regiondefs);
 }
 
-#define ERR_UNKNOWN_OPTION   0
-#define ERR_MISSING_OPTION   1
-#define ERR_DUPLICATE_INPUT  2
-#define ERR_DUPLICATE_OUTPUT 3
-#define ERR_REGION_OVERFLOW  4
+#define ERR_UNKNOWN_OPTION      0
+#define ERR_MISSING_OPTION      1
+#define ERR_DUPLICATE_INPUT     2
+#define ERR_DUPLICATE_OUTPUT    3
+#define ERR_REGION_OVERFLOW     4
+#define ERR_PERIPHERAL_OVERFLOW 5
 
 static const char *errmsgs[] = {
 	"Unknown extra argument",
@@ -150,6 +153,7 @@ static const char *errmsgs[] = {
 	"Duplicate -i parameter",
 	"Duplicate -o parameter",
 	"Too many regions specified (max 10)",
+	"Too many peripherals specified (max 16)",
 };
 
 static int show_arg_error(const char *progname, int prev_errors, int error)
@@ -159,6 +163,16 @@ static int show_arg_error(const char *progname, int prev_errors, int error)
 	return prev_errors | 1 << error;
 }
 
+static void process_symbols(const char *progname, char *list, size_t size, const char *arg, int *errors, int overflow)
+{
+	for (; *arg; arg++) {
+		if (append_symbol(list, size, *arg)) {
+			*errors = show_arg_error(progname, *errors, overflow);
+			return;
+		}
+	}
+}
+
 static int process_args(int argc, char **argv)
 {
 	int errors = 0, fail = 0, help = 0;
@@ -166,7 +180,7 @@ static int process_args(int argc, char **argv)
 
 	extern char *optarg;
 	extern int optind, optopt;
-	while ((opt = getopt(argc, argv, "hi:o:r:")) != -1) {
+	while ((opt = getopt(argc, argv, "hi:o:r:p:")) != -1) {
 		switch (opt) {
 		case 'h':
 			help = 1;
@@ -186,13 +200,12 @@ static int process_args(int argc, char **argv)
 				outfile = optarg;
 			break;
 
+		case 'p':
+			process_symbols(argv[0], sysid.peripherals, sizeof sysid.peripherals, optarg, &errors, ERR_PERIPHERAL_OVERFLOW);
+			break;
+
 		case 'r':
-			for (; *optarg; optarg++) {
-				if (append_symbol(sysid.regions, sizeof sysid.regions, *optarg)) {
-					errors = show_arg_error(argv[0], errors, ERR_REGION_OVERFLOW);
-					break;
-				}
-			}
+			process_symbols(argv[0], sysid.regions, sizeof sysid.regions, optarg, &errors, ERR_REGION_OVERFLOW);
 			break;
 
 		default:
@@ -227,7 +240,9 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	if (sysid.regions[0] == ' ') strcpy(sysid.regions, "JTUBKAEL");
+	if (sysid.regions[0]     == ' ') strcpy(sysid.regions, "JTUBKAEL");
+	if (sysid.peripherals[0] == ' ') sysid.peripherals[0] = 'J';
+
 	for (int i = 0; i < 10 && sysid.regions[i] != ' '; i++) {
 		const struct symbolname *region = find_symbol(regiondefs, sysid.regions[i]);
 		if (region) ipout = serialize_region_code(ipout, region);