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-rw-r--r--utils/tinymix.c64
1 files changed, 49 insertions, 15 deletions
diff --git a/utils/tinymix.c b/utils/tinymix.c
index f57238a..fe06243 100644
--- a/utils/tinymix.c
+++ b/utils/tinymix.c
@@ -30,10 +30,14 @@
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
+#include <getopt.h>
#include <ctype.h>
#include <string.h>
#include <limits.h>
-#include <errno.h>
+
+
+/* Flag set by ‘--verbose’. */
+int verbose_flag = 0;
static void tinymix_list_controls(struct mixer *mixer);
static void tinymix_detail_control(struct mixer *mixer, const char *control,
@@ -42,19 +46,50 @@ static void tinymix_set_value(struct mixer *mixer, const char *control,
char **values, unsigned int num_values);
static void tinymix_print_enum(struct mixer_ctl *ctl, int print_all);
+void usage(void)
+{
+ printf("Usage: tinymix [--verbose] [--help] [-D card] [-c control id] [value to set]\n");
+}
+
int main(int argc, char **argv)
{
struct mixer *mixer;
int card = 0;
+ char control_id[32];
+
+ while (1) {
+ static struct option long_options[] = {
+ /* These options set a flag. */
+ // FIXME - need to figure out how to pull in version?
+ // {"version", no_argument, &verbose_flag, 1},
+ {"verbose", no_argument, &verbose_flag, 1},
+ {"help", no_argument, NULL, 'h'},
+ {0, 0, 0, 0}
+ };
- if ((argc > 2) && (strcmp(argv[1], "-D") == 0)) {
- argv++;
- if (argv[1]) {
- card = atoi(argv[1]);
- argv++;
- argc -= 2;
- } else {
- argc -= 1;
+ /* getopt_long stores the option index here. */
+ int option_index = 0;
+ int c = 0;
+
+ c = getopt_long (argc, argv, "c:D:h", long_options, &option_index);
+
+ /* Detect the end of the options. */
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 'c':
+ strncpy(control_id, optarg, sizeof(control_id));
+ break;
+
+ case 'D':
+ card = atoi(optarg);
+ break;
+
+ case 'h':
+ usage();
+ exit(0);
+ break;
}
}
@@ -64,17 +99,16 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
}
-
printf("Mixer name: '%s'\n", mixer_get_name(mixer));
- tinymix_list_controls(mixer);
- if (argc == 1) {
- printf("Usage: tinymix [-D card] [control id] [value to set]\n");
- } else if (argc == 2) {
- tinymix_detail_control(mixer, argv[1], 1);
+ if (argc == 2) {
+ tinymix_detail_control(mixer, control_id, verbose_flag);
} else if (argc >= 3) {
tinymix_set_value(mixer, argv[1], &argv[2], argc - 2);
}
+ if (verbose_flag)
+ tinymix_list_controls(mixer);
+
mixer_close(mixer);
return 0;