1 #include <errno.h>
2 #include <fcntl.h>
3 #include <poll.h>
4 #include <stdio.h>
5 #include <string.h>
6 #include <stdlib.h>
7 #include <unistd.h>
8 #include <sndio.h>
9 #include "tools.h"
10
11 struct sio_par par;
12 struct sio_cap cap;
13
14 void
pr_enc(struct sio_enc * enc)15 pr_enc(struct sio_enc *enc)
16 {
17 fprintf(stderr, "%s%d", enc->sig ? "s" : "u", enc->bits);
18 if (enc->bps > 1)
19 fprintf(stderr, "%s", enc->le ? "le" : "be");
20 if (enc->bps != SIO_BPS(enc->bits))
21 fprintf(stderr, "%d%s", enc->bps, enc->msb ? "msb" : "lsb");
22 }
23
24 void
cap_pr(struct sio_cap * cap)25 cap_pr(struct sio_cap *cap)
26 {
27 unsigned n, i;
28
29 for (n = 0; n < cap->nconf; n++) {
30 fprintf(stderr, "config %d\n", n);
31 fprintf(stderr, "\tenc:");
32 for (i = 0; i < SIO_NENC; i++) {
33 if (cap->confs[n].enc & (1 << i)) {
34 fprintf(stderr, " ");
35 pr_enc(&cap->enc[i]);
36 }
37 }
38 fprintf(stderr, "\n\tpchan:");
39 for (i = 0; i < SIO_NCHAN; i++) {
40 if (cap->confs[n].pchan & (1 << i))
41 fprintf(stderr, " %d", cap->pchan[i]);
42 }
43 fprintf(stderr, "\n\trchan:");
44 for (i = 0; i < SIO_NCHAN; i++) {
45 if (cap->confs[n].rchan & (1 << i))
46 fprintf(stderr, " %d", cap->rchan[i]);
47 }
48 fprintf(stderr, "\n\trate:");
49 for (i = 0; i < SIO_NRATE; i++) {
50 if (cap->confs[n].rate & (1 << i))
51 fprintf(stderr, " %d", cap->rate[i]);
52 }
53 fprintf(stderr, "\n");
54 }
55 }
56
57 void
usage(void)58 usage(void) {
59 fprintf(stderr, "usage: cap [-pr]\n");
60 }
61
62 int
main(int argc,char ** argv)63 main(int argc, char **argv) {
64 int ch;
65 unsigned mode = SIO_PLAY | SIO_REC;
66 struct sio_hdl *hdl;
67
68 while ((ch = getopt(argc, argv, "pr")) != -1) {
69 switch(ch) {
70 case 'p':
71 mode &= ~SIO_REC;
72 break;
73 case 'r':
74 mode &= ~SIO_PLAY;
75 break;
76 default:
77 usage();
78 exit(1);
79 break;
80 }
81 }
82 if (mode == 0) {
83 fprintf(stderr, "-p and -r flags are mutually exclusive\n");
84 exit(1);
85 }
86 hdl = sio_open(NULL, mode, 0);
87 if (hdl == NULL) {
88 fprintf(stderr, "sio_open() failed\n");
89 exit(1);
90 }
91 if (!sio_getcap(hdl, &cap)) {
92 fprintf(stderr, "sio_getcap() failed\n");
93 exit(1);
94 }
95 cap_pr(&cap);
96 sio_close(hdl);
97 return 0;
98 }
99