1/*
2 * This is an example of a mixer program for Linux
3 *
4 * updated 1/1/93 to add stereo, level query, broken
5 * devmask kludge - cmetz@thor.tjhsst.edu
6 *
7 * (C) Craig Metz and Hannu Savolainen 1993.
8 *
9 * You may do anything you wish with this program.
| 1/*
2 * This is an example of a mixer program for Linux
3 *
4 * updated 1/1/93 to add stereo, level query, broken
5 * devmask kludge - cmetz@thor.tjhsst.edu
6 *
7 * (C) Craig Metz and Hannu Savolainen 1993.
8 *
9 * You may do anything you wish with this program.
|
| 10 *
11 * ditto for my modifications (John-Mark Gurney, 1997)
|
10 */
11
12#include <stdio.h>
13#include <fcntl.h>
14#include <string.h>
| 12 */
13
14#include <stdio.h>
15#include <fcntl.h>
16#include <string.h>
|
| 17#include <stdlib.h>
18#include <unistd.h>
|
15#ifdef __FreeBSD__
16#include <machine/soundcard.h>
17#else
18#include <sys/soundcard.h>
19#endif
20
21char *names[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
22
| 19#ifdef __FreeBSD__
20#include <machine/soundcard.h>
21#else
22#include <sys/soundcard.h>
23#endif
24
25char *names[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
26
|
23int devmask = 0, recmask = 0, recsrc = 0;
| 27void usage(int devmask, int recmask);
28int res_name(const char *name, int mask);
29void print_recsrc(int recsrc);
|
24
| 30
|
25void usage(void)
| 31void
32usage(int devmask, int recmask)
|
26{
| 33{
|
27 int i, n = 0;
28 printf("Usage: mixer { ");
| 34 int i, n;
|
29
| 35
|
30 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
| 36 printf("usage:\tmixer [[dev [voll[:volr]] | recsrc | {^|+|-|=}rec recdev] ... ]\n");
37 printf(" devices:\t");
38 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++)
|
31 if ((1 << i) & devmask) {
32 if (n)
| 39 if ((1 << i) & devmask) {
40 if (n)
|
33 putchar('|');
| 41 printf(", ");
|
34 printf(names[i]);
35 n = 1;
36 }
| 42 printf(names[i]);
43 n = 1;
44 }
|
37 printf(" } <value>\n or mixer { +rec|-rec } <devicename>\n");
| 45 printf("\n rec devices:\t");
46 for (i = 0, n = 0; i < SOUND_MIXER_NRDEVICES; i++)
47 if ((1 << i) & recmask) {
48 if (n)
49 printf(", ");
50 printf(names[i]);
51 n = 1;
52 }
53 printf("\n");
|
38 exit(1);
39}
40
| 54 exit(1);
55}
56
|
41void print_recsrc(void)
| 57int
58res_name(const char *name, int mask)
|
42{
| 59{
|
| 60 int foo;
61
62 for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++)
63 if ((1 << foo) & mask && !strcmp(names[foo], name))
64 break;
65
66 return foo == SOUND_MIXER_NRDEVICES ? -1 : foo;
67}
68
69void
70print_recsrc(int recsrc)
71{
|
43 int i, n = 0;
44 fprintf(stderr, "Recording source: ");
45
46 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
47 if ((1 << i) & recsrc) {
48 if (n)
49 fprintf(stderr, ", ");
50 fprintf(stderr, names[i]);
51 n = 1;
52 }
53 fprintf(stderr, "\n");
54}
55
56int
57main(int argc, char *argv[])
58{
59 int foo, bar, baz, dev;
| 72 int i, n = 0;
73 fprintf(stderr, "Recording source: ");
74
75 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
76 if ((1 << i) & recsrc) {
77 if (n)
78 fprintf(stderr, ", ");
79 fprintf(stderr, names[i]);
80 n = 1;
81 }
82 fprintf(stderr, "\n");
83}
84
85int
86main(int argc, char *argv[])
87{
88 int foo, bar, baz, dev;
|
| 89 int devmask = 0, recmask = 0, recsrc = 0, orecsrc;
90 int dusage = 0, drecsrc = 0;
91 int l, r;
|
60
| 92
|
61 char name[30] = "/dev/mixer";
| 93 char *name;
|
62
| 94
|
| 95 name = strdup("/dev/mixer");
96
|
63 if (!strcmp(argv[0], "mixer2"))
| 97 if (!strcmp(argv[0], "mixer2"))
|
64 strcpy(name, "/dev/mixer1");
65 else
66 if (!strcmp(argv[0], "mixer3"))
67 strcpy(name, "/dev/mixer2");
| 98 name = strdup("/dev/mixer1");
99 else if (!strcmp(argv[0], "mixer3"))
100 name = strdup("/dev/mixer2");
|
68
| 101
|
| 102 if (argc > 1 && !strcmp(argv[1], "-f")) {
103 name = strdup(argv[2]);
104 argc -= 2; argv += 2;
105 }
106
|
69 if ((baz = open(name, O_RDWR)) < 0) {
70 perror(name);
71 exit(1);
72 }
| 107 if ((baz = open(name, O_RDWR)) < 0) {
108 perror(name);
109 exit(1);
110 }
|
| 111 free(name);
|
73 if (ioctl(baz, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
74 perror("SOUND_MIXER_READ_DEVMASK");
75 exit(-1);
76 }
77 if (ioctl(baz, SOUND_MIXER_READ_RECMASK, &recmask) == -1) {
78 perror("SOUND_MIXER_READ_RECMASK");
79 exit(-1);
80 }
81 if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1) {
82 perror("SOUND_MIXER_READ_RECSRC");
83 exit(-1);
84 }
| 112 if (ioctl(baz, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
113 perror("SOUND_MIXER_READ_DEVMASK");
114 exit(-1);
115 }
116 if (ioctl(baz, SOUND_MIXER_READ_RECMASK, &recmask) == -1) {
117 perror("SOUND_MIXER_READ_RECMASK");
118 exit(-1);
119 }
120 if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1) {
121 perror("SOUND_MIXER_READ_RECSRC");
122 exit(-1);
123 }
|
| 124 orecsrc = recsrc;
|
85
| 125
|
86 switch (argc) {
87 case 3:
88 bar = 1;
89 break;
90 case 2:
91 bar = 0;
92 break;
93 case 1:
94 bar = -1;
95 break;
96 default:
97 usage();
98 }
99
100 if (bar < 0) {
| 126 if (argc == 1) {
|
101 for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++) {
102 if (!((1 << foo) & devmask))
103 continue;
104 if (ioctl(baz, MIXER_READ(foo),&bar)== -1) {
105 perror("MIXER_READ");
106 continue;
107 }
108 printf("Mixer %-8s is currently set to %3d:%d\n", names[foo], bar & 0x7f, (bar >> 8) & 0x7f);
109 }
110 return(0);
111 }
112
| 127 for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++) {
128 if (!((1 << foo) & devmask))
129 continue;
130 if (ioctl(baz, MIXER_READ(foo),&bar)== -1) {
131 perror("MIXER_READ");
132 continue;
133 }
134 printf("Mixer %-8s is currently set to %3d:%d\n", names[foo], bar & 0x7f, (bar >> 8) & 0x7f);
135 }
136 return(0);
137 }
138
|
113 for (foo = 0; foo < SOUND_MIXER_NRDEVICES && strcmp(names[foo], argv[1]); foo++);
| 139 argc--; argv++;
|
114
| 140
|
115 if (foo >= SOUND_MIXER_NRDEVICES) {
116
117 if (!strcmp("+rec", argv[1]) || !strcmp("-rec", argv[1])) {
118 if (argc != 3) {
119 usage();
120 /* NOTREACHED */
| 141 while (argc) {
142 if (!strcmp("recsrc", *argv)) {
143 drecsrc = 1;
144 argc--; argv++;
145 continue;
146 } else if (argc > 1 && !strcmp("rec", *argv + 1)) {
147 if (**argv != '+' && **argv != '-' &&
148 **argv != '=' && **argv != '^') {
149 dusage = 1;
150 argc -= 1; argv += 1;
151 continue;
|
121 }
| 152 }
|
122 for (dev = 0; dev < SOUND_MIXER_NRDEVICES && strcmp(names[dev], argv[2]); dev++);
123 if (dev >= SOUND_MIXER_NRDEVICES)
124 usage();
125
126 if (!((1 << dev) & recmask)) {
127 fprintf(stderr, "Invalid recording source %s\n", argv[2]);
128 exit(-1);
| 153 if ((dev = res_name(argv[1], recmask)) == -1) {
154 dusage = 1;
155 argc -= 1; argv += 1;
156 continue;
|
129 }
| 157 }
|
130 if (argv[1][0] == '+')
| 158 switch(**argv) {
159 case '+':
|
131 recsrc |= (1 << dev);
| 160 recsrc |= (1 << dev);
|
132 else
| 161 break;
162 case '-':
|
133 recsrc &= ~(1 << dev);
| 163 recsrc &= ~(1 << dev);
|
134
135 if (ioctl(baz, SOUND_MIXER_WRITE_RECSRC, &recsrc) == -1) {
136 perror("SOUND_MIXER_WRITE_RECSRC");
137 exit(-1);
| 164 break;
165 case '=':
166 recsrc = (1 << dev);
167 break;
168 case '^':
169 recsrc ^= (1 << dev);
170 break;
|
138 }
| 171 }
|
139 print_recsrc();
| 172 drecsrc = 1;
173 argc -= 2; argv += 2;
174 continue;
175 }
|
140
| 176
|
141 } else
142 usage();
143 } else {
144 if (bar) {
145 if (strchr(argv[2], ':') == NULL) {
146 sscanf(argv[2], "%d", &bar);
147 dev = bar;
148 } else
149 sscanf(argv[2], "%d:%d", &bar, &dev);
| 177 if ((dev = res_name(*argv, devmask)) == -1) {
178 dusage = 1;
179 argc--; argv++;
180 continue;
181 }
|
150
| 182
|
151 if (bar < 0)
152 bar = 0;
153 if (dev < 0)
154 dev = 0;
155 if (bar > 100)
156 bar = 100;
157 if (dev > 100)
158 dev = 100;
| 183 switch(argc > 1 ? sscanf(argv[1], "%d:%d", &l, &r) : 0) {
184 case 0:
185 if (ioctl(baz, MIXER_READ(dev),&bar)== -1) {
186 perror("MIXER_READ");
187 argc--; argv++;
188 continue;
189 }
190 printf("Mixer %-8s is currently set to %3d:%d\n",
191 names[dev], bar & 0x7f, (bar >> 8) & 0x7f);
|
159
| 192
|
160 printf("Setting the mixer %s to %d:%d.\n", names[foo], bar, dev);
| 193 argc--; argv++;
194 break;
195 case 1:
196 r = l;
197 case 2:
198 if (l < 0)
199 l = 0;
200 else if (l > 100)
201 l = 100;
202 if (r < 0)
203 r = 0;
204 else if (r > 100)
205 r = 100;
|
161
| 206
|
162 bar |= dev << 8;
163 if (ioctl(baz, MIXER_WRITE(foo), &bar) == -1)
| 207 printf("Setting the mixer %s to %d:%d.\n", names[dev],
208 l, r);
209
210 l |= r << 8;
211 if (ioctl(baz, MIXER_WRITE(dev), &l) == -1)
|
164 perror("WRITE_MIXER");
| 212 perror("WRITE_MIXER");
|
165 return (0);
166 } else {
167 if (ioctl(baz, MIXER_READ(foo),&bar)== -1)
168 perror("MIXER_READ");
169 printf("The mixer %s is currently set to %d:%d.\n", names[foo], bar & 0x7f, (bar >> 8) & 0x7f);
| 213
214 argc -= 2; argv += 2;
215 break;
|
170 }
171 }
172
| 216 }
217 }
218
|
| 219 if (orecsrc != recsrc)
220 if (ioctl(baz, SOUND_MIXER_WRITE_RECSRC, &recsrc) == -1) {
221 perror("SOUND_MIXER_WRITE_RECSRC");
222 exit(-1);
223 }
224
225 if (drecsrc) {
226 if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1) {
227 perror("SOUND_MIXER_READ_RECSRC");
228 exit(-1);
229 }
230 print_recsrc(recsrc);
231 }
232
|
173 close(baz);
| 233 close(baz);
|
| 234
235 if (dusage)
236 usage(devmask, recmask);
237
238 exit(0);
|
174}
| 239}
|