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1.2 ! ratchov 1: /* $OpenBSD: opt.c,v 1.1 2012/11/23 07:03:28 ratchov Exp $ */
1.1 ratchov 2: /*
3: * Copyright (c) 2008-2011 Alexandre Ratchov <alex@caoua.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #include <stdio.h>
18: #include <stdlib.h>
19: #include <string.h>
20:
21: #include "dev.h"
22: #include "opt.h"
23: #include "utils.h"
24:
25: struct opt *opt_list = NULL;
26:
27: /*
28: * create a new audio sub-device "configuration"
29: */
30: struct opt *
31: opt_new(char *name, struct dev *dev,
32: int pmin, int pmax, int rmin, int rmax,
33: int maxweight, int mmc, int dup, unsigned int mode)
34: {
35: struct opt *o, **po;
36: unsigned int len;
37: char c;
38:
39: for (len = 0; name[len] != '\0'; len++) {
40: if (len == OPT_NAMEMAX) {
41: fprintf(stderr, "%s: name too long\n", name);
42: exit(1);
43: }
44: c = name[len];
45: if ((c < 'a' || c > 'z') &&
46: (c < 'A' || c > 'Z')) {
47: fprintf(stderr, "%s: '%c' not allowed\n", name, c);
48: exit(1);
49: }
50: }
51: o = xmalloc(sizeof(struct opt));
52: if (mode & MODE_PLAY) {
53: o->pmin = pmin;
54: o->pmax = pmax;
55: }
56: if (mode & MODE_RECMASK) {
57: o->rmin = rmin;
58: o->rmax = rmax;
59: }
60: o->maxweight = maxweight;
61: o->mmc = mmc;
62: o->dup = dup;
63: o->mode = mode;
64: o->dev = dev;
65: memcpy(o->name, name, len + 1);
66: for (po = &opt_list; *po != NULL; po = &(*po)->next) {
67: if (o->dev->num == (*po)->dev->num &&
68: strcmp(o->name, (*po)->name) == 0) {
69: fprintf(stderr, "%s: already defined\n", o->name);
70: exit(1);
71: }
72: }
73: o->next = NULL;
74: *po = o;
75: if (log_level >= 2) {
76: dev_log(o->dev);
77: log_puts(".");
78: log_puts(o->name);
79: log_puts(":");
80: if (o->mode & MODE_REC) {
81: log_puts(" rec=");
82: log_putu(o->rmin);
83: log_puts(":");
84: log_putu(o->rmax);
85: }
86: if (o->mode & MODE_PLAY) {
87: log_puts(" play=");
88: log_putu(o->pmin);
89: log_puts(":");
90: log_putu(o->pmax);
91: log_puts(" vol=");
92: log_putu(o->maxweight);
93: }
94: if (o->mode & MODE_MON) {
95: log_puts(" mon=");
96: log_putu(o->rmin);
97: log_puts(":");
98: log_putu(o->rmax);
99: }
100: if (o->mode & (MODE_RECMASK | MODE_PLAY)) {
101: if (o->mmc)
102: log_puts(" mmc");
103: if (o->dup)
104: log_puts(" dup");
105: }
106: log_puts("\n");
107: }
108: return o;
109: }
110:
111: struct opt *
112: opt_byname(char *name, unsigned int num)
113: {
114: struct opt *o;
115:
116: for (o = opt_list; o != NULL; o = o->next) {
117: if (o->dev->num != num)
118: continue;
119: if (strcmp(name, o->name) == 0)
120: return o;
121: }
122: return NULL;
123: }
124:
125: void
126: opt_del(struct opt *o)
127: {
128: struct opt **po;
129:
130: for (po = &opt_list; *po != o; po = &(*po)->next) {
131: #ifdef DEBUG
132: if (*po == NULL) {
133: log_puts("opt_del: not on list\n");
134: panic();
135: }
136: #endif
137: }
138: *po = o->next;
139: xfree(o);
140: }