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: head/usr.sbin/mixer/mixer.c 230611 2012-01-27 09:15:55Z mav $
24 #include <sys/soundcard.h>
26 static const char *names[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
28 static void usage(int devmask, int recmask);
29 static int res_name(const char *name, int mask);
30 static void print_recsrc(int recsrc, int recmask, int sflag);
33 usage(int devmask, int recmask)
37 printf("usage: mixer [-f device] [-s | -S] [dev [+|-][voll[:[+|-]volr]] ...\n"
38 " mixer [-f device] [-s | -S] recsrc ...\n"
39 " mixer [-f device] [-s | -S] {^|+|-|=}rec rdev ...\n");
42 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
43 if ((1 << i) & devmask) {
46 printf("%s", names[i]);
52 printf("\n rec devices: ");
53 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
54 if ((1 << i) & recmask) {
57 printf("%s", names[i]);
67 res_name(const char *name, int mask)
71 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
72 if ((1 << i) & mask && strcmp(names[i], name) == 0)
75 if (i == SOUND_MIXER_NRDEVICES)
82 print_recsrc(int recsrc, int recmask, int sflag)
90 printf("Recording source: ");
92 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
93 if ((1 << i) & recsrc) {
95 printf("%srec ", n ? " +" : "=");
98 printf("%s", names[i]);
107 main(int argc, char *argv[])
109 char mixer[PATH_MAX] = "/dev/mixer";
110 char lstr[8], rstr[8];
112 int devmask = 0, recmask = 0, recsrc = 0, orecsrc;
113 int dusage = 0, drecsrc = 0, sflag = 0, Sflag = 0;
114 int l, r, lrel, rrel;
115 int ch, i, bar, baz, dev, m, n, t;
117 if ((name = strdup(basename(argv[0]))) == NULL)
119 if (strncmp(name, "mixer", 5) == 0 && name[5] != '\0') {
120 n = strtol(name + 5, &eptr, 10) - 1;
121 if (n > 0 && *eptr == '\0')
122 snprintf(mixer, PATH_MAX - 1, "/dev/mixer%d", n);
129 if (n >= argc || *argv[n] != '-')
131 if (strlen(argv[n]) != 2) {
132 if (strcmp(argv[n] + 1, "rec") != 0)
137 if (ch == 'f' && n < argc - 1) {
140 } else if (ch == 's') {
143 } else if (ch == 'S') {
157 if ((baz = open(name, O_RDWR)) < 0)
159 if (ioctl(baz, SOUND_MIXER_READ_DEVMASK, &devmask) == -1)
160 err(1, "SOUND_MIXER_READ_DEVMASK");
161 if (ioctl(baz, SOUND_MIXER_READ_RECMASK, &recmask) == -1)
162 err(1, "SOUND_MIXER_READ_RECMASK");
163 if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
164 err(1, "SOUND_MIXER_READ_RECSRC");
167 if (argc == 1 && dusage == 0) {
168 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++) {
169 if (!((1 << i) & devmask))
171 if (ioctl(baz, MIXER_READ(i),&bar) == -1) {
175 if (Sflag || sflag) {
176 printf("%s%s%c%d:%d", n ? " " : "",
177 names[i], Sflag ? ':' : ' ',
178 bar & 0x7f, (bar >> 8) & 0x7f);
181 printf("Mixer %-8s is currently set to "
182 "%3d:%d\n", names[i], bar & 0x7f,
187 print_recsrc(recsrc, recmask, Sflag || sflag);
195 while (argc > 0 && dusage == 0) {
196 if (strcmp("recsrc", *argv) == 0) {
201 } else if (strcmp("rec", *argv + 1) == 0) {
202 if (**argv != '+' && **argv != '-' &&
203 **argv != '=' && **argv != '^') {
204 warnx("unknown modifier: %c", **argv);
209 warnx("no recording device specified");
213 if ((dev = res_name(argv[1], recmask)) == -1) {
214 warnx("unknown recording device: %s", argv[1]);
220 recsrc |= (1 << dev);
223 recsrc &= ~(1 << dev);
229 recsrc ^= (1 << dev);
238 if ((t = sscanf(*argv, "%d:%d", &l, &r)) > 0)
240 else if ((dev = res_name(*argv, devmask)) == -1) {
241 warnx("unknown device: %s", *argv);
248 m = sscanf(argv[1], "%7[^:]:%7s", lstr, rstr);
250 if (*lstr == '+' || *lstr == '-')
252 l = strtol(lstr, NULL, 10);
255 if (*rstr == '+' || *rstr == '-')
257 r = strtol(rstr, NULL, 10);
261 switch (argc > 1 ? m : t) {
263 if (ioctl(baz, MIXER_READ(dev), &bar) == -1) {
269 if (Sflag || sflag) {
270 printf("%s%s%c%d:%d", n ? " " : "",
271 names[dev], Sflag ? ':' : ' ',
272 bar & 0x7f, (bar >> 8) & 0x7f);
275 printf("Mixer %-8s is currently set to "
276 "%3d:%d\n", names[dev], bar & 0x7f,
286 if (ioctl(baz, MIXER_READ(dev), &bar) == -1) {
294 l = (bar & 0x7f) + l;
296 r = ((bar >> 8) & 0x7f) + r;
308 printf("Setting the mixer %s from %d:%d to "
309 "%d:%d.\n", names[dev], bar & 0x7f,
310 (bar >> 8) & 0x7f, l, r);
313 if (ioctl(baz, MIXER_WRITE(dev), &l) == -1)
324 usage(devmask, recmask);
328 if (orecsrc != recsrc) {
329 if (ioctl(baz, SOUND_MIXER_WRITE_RECSRC, &recsrc) == -1)
330 err(1, "SOUND_MIXER_WRITE_RECSRC");
331 if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
332 err(1, "SOUND_MIXER_READ_RECSRC");
336 print_recsrc(recsrc, recmask, Sflag || sflag);