2 * This is an example of a mixer program for Linux
4 * updated 1/1/93 to add stereo, level query, broken
5 * devmask kludge - cmetz@thor.tjhsst.edu
7 * (C) Craig Metz and Hannu Savolainen 1993.
9 * You may do anything you wish with this program.
11 * ditto for my modifications (John-Mark Gurney, 1997)
13 * $FreeBSD: src/usr.sbin/mixer/mixer.c,v 1.11.2.6 2001/07/30 10:22:58 dd Exp $
14 * $DragonFly: src/usr.sbin/mixer/mixer.c,v 1.6 2004/04/15 12:58:12 joerg Exp $
23 #include <sys/soundcard.h>
25 #define LEFT(vol) (vol & 0x7f)
26 #define RIGHT(vol) ((vol >> 8) & 0x7f)
28 static const char *names[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
29 static const char *defaultdev = "/dev/mixer";
31 static void usage(int devmask, int recmask);
32 static int res_name(const char *name, int mask);
33 static void print_recsrc(int recsrc);
34 static void print_recsrc_short(int recsrc);
37 usage(int devmask, int recmask)
41 printf("usage: mixer [-f device] [-s] [dev [+|-][voll[:[+|-]volr]] ...\n"
42 " mixer [-f device] [-s] recsrc ...\n"
43 " mixer [-f device] [-s] {^|+|-|=}rec recdev ...\n"
46 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
47 if ((1 << i) & devmask) {
50 printf("%s", names[i]);
54 printf("\n rec devices: ");
55 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
56 if ((1 << i) & recmask) {
59 printf("%s", names[i]);
68 res_name(const char *name, int mask)
72 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
73 if ((1 << i) & mask && !strcmp(names[i], name))
76 if (i == SOUND_MIXER_NRDEVICES)
83 print_recsrc(int recsrc)
86 printf("Recording source: ");
88 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
89 if ((1 << i) & recsrc) {
92 printf("%s", names[i]);
100 print_recsrc_short(int recsrc)
106 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
107 if ((1 << i) & recsrc) {
112 printf("%s ", names[i]);
118 main(int argc, char **argv)
120 int i, mset, fd, dev;
121 int devmask = 0, recmask = 0, recsrc = 0, orecsrc;
122 int dusage = 0, drecsrc = 0, shortflag = 0;
123 int l = 0, r = 0, t = 0;
124 int n = 0, lrel = 0, rrel = 0;
125 char lstr[8], rstr[8];
128 const char *name = defaultdev;
130 while ((ch = getopt(argc, argv, "f:sh")) != -1)
138 case 'h': /* Fall through */
145 if ((fd = open(name, O_RDWR)) < 0)
147 if (ioctl(fd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1)
148 err(1, "SOUND_MIXER_READ_DEVMASK");
149 if (ioctl(fd, SOUND_MIXER_READ_RECMASK, &recmask) == -1)
150 err(1, "SOUND_MIXER_READ_RECMASK");
151 if (ioctl(fd, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
152 err(1, "SOUND_MIXER_READ_RECSRC");
157 usage(devmask, recmask); /* Does not return */
161 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
162 if (!((1 << i) & devmask))
164 if (ioctl(fd, MIXER_READ(i),&mset)== -1) {
169 printf("%s %d:%d ", names[i], LEFT(mset),
172 printf("Mixer %-8s is currently set to %3d:%d\n",
173 names[i], LEFT(mset), RIGHT(mset));
175 if (ioctl(fd, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
176 err(1, "SOUND_MIXER_READ_RECSRC");
178 print_recsrc_short(recsrc);
179 if (isatty(STDOUT_FILENO))
182 print_recsrc(recsrc);
189 if (!strcmp("recsrc", *argv)) {
193 } else if (argc > 1 && !strcmp("rec", *argv + 1)) {
194 if (**argv != '+' && **argv != '-' &&
195 **argv != '=' && **argv != '^') {
196 warnx("unknown modifier: %c", **argv);
200 if ((dev = res_name(argv[1], recmask)) == -1) {
201 warnx("unknown recording device: %s", argv[1]);
207 recsrc |= (1 << dev);
210 recsrc &= ~(1 << dev);
216 recsrc ^= (1 << dev);
220 argc -= 2; argv += 2;
224 if ((t = sscanf(*argv, "%d:%d", &l, &r)) > 0) {
227 else if((dev = res_name(*argv, devmask)) == -1) {
228 warnx("unknown device: %s", *argv);
233 #define issign(c) (((c) == '+') || ((c) == '-'))
236 n = sscanf(argv[1], "%7[^:]:%7s", lstr, rstr);
250 switch(argc > 1 ? n : t) {
252 if (ioctl(fd, MIXER_READ(dev),&mset)== -1) {
258 printf("%s %d:%d ", names[dev], LEFT(mset),
261 printf("Mixer %-8s is currently set to %3d:%d\n",
262 names[dev], LEFT(mset), RIGHT(mset));
269 if (ioctl(fd, MIXER_READ(dev),&mset)== -1) {
289 printf("Setting the mixer %s to %d:%d.\n", names[dev],
293 if (ioctl(fd, MIXER_WRITE(dev), &l) == -1)
296 argc -= 2; argv += 2;
301 if (orecsrc != recsrc)
302 if (ioctl(fd, SOUND_MIXER_WRITE_RECSRC, &recsrc) == -1)
303 err(1, "SOUND_MIXER_WRITE_RECSRC");
306 if (ioctl(fd, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
307 err(1, "SOUND_MIXER_READ_RECSRC");
308 print_recsrc(recsrc);