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1.6 ! ratchov 1: /* $OpenBSD: opt.c,v 1.5 2021/01/29 11:21:00 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 <string.h>
18:
19: #include "dev.h"
20: #include "opt.h"
21: #include "utils.h"
22:
1.5 ratchov 23: struct opt *opt_list;
24:
1.1 ratchov 25: /*
26: * create a new audio sub-device "configuration"
27: */
28: struct opt *
1.4 ratchov 29: opt_new(struct dev *d, char *name,
1.1 ratchov 30: int pmin, int pmax, int rmin, int rmax,
31: int maxweight, int mmc, int dup, unsigned int mode)
32: {
1.6 ! ratchov 33: struct opt *o, **po;
! 34: unsigned int len, num;
1.1 ratchov 35: char c;
36:
37: for (len = 0; name[len] != '\0'; len++) {
38: if (len == OPT_NAMEMAX) {
1.3 ratchov 39: log_puts(name);
40: log_puts(": too long\n");
41: return NULL;
1.1 ratchov 42: }
43: c = name[len];
44: if ((c < 'a' || c > 'z') &&
45: (c < 'A' || c > 'Z')) {
1.3 ratchov 46: log_puts(name);
47: log_puts(": only alphabetic chars allowed\n");
48: return NULL;
1.1 ratchov 49: }
50: }
1.6 ! ratchov 51: num = 0;
! 52: for (po = &opt_list; *po != NULL; po = &(*po)->next)
! 53: num++;
! 54: if (num >= OPT_NMAX) {
! 55: log_puts(name);
! 56: log_puts(": too many opts\n");
! 57: return NULL;
! 58: }
! 59: if (opt_byname(d, name)) {
! 60: dev_log(d);
! 61: log_puts(".");
! 62: log_puts(name);
! 63: log_puts(": already defined\n");
! 64: return NULL;
! 65: }
1.1 ratchov 66: o = xmalloc(sizeof(struct opt));
1.6 ! ratchov 67: o->num = num;
1.5 ratchov 68: o->dev = d;
1.1 ratchov 69: if (mode & MODE_PLAY) {
70: o->pmin = pmin;
71: o->pmax = pmax;
72: }
73: if (mode & MODE_RECMASK) {
74: o->rmin = rmin;
75: o->rmax = rmax;
76: }
77: o->maxweight = maxweight;
78: o->mmc = mmc;
79: o->dup = dup;
80: o->mode = mode;
81: memcpy(o->name, name, len + 1);
1.6 ! ratchov 82: o->next = *po;
! 83: *po = o;
1.1 ratchov 84: if (log_level >= 2) {
1.4 ratchov 85: dev_log(d);
1.1 ratchov 86: log_puts(".");
87: log_puts(o->name);
88: log_puts(":");
89: if (o->mode & MODE_REC) {
90: log_puts(" rec=");
91: log_putu(o->rmin);
92: log_puts(":");
93: log_putu(o->rmax);
94: }
95: if (o->mode & MODE_PLAY) {
96: log_puts(" play=");
97: log_putu(o->pmin);
98: log_puts(":");
99: log_putu(o->pmax);
100: log_puts(" vol=");
101: log_putu(o->maxweight);
102: }
103: if (o->mode & MODE_MON) {
104: log_puts(" mon=");
105: log_putu(o->rmin);
106: log_puts(":");
107: log_putu(o->rmax);
108: }
109: if (o->mode & (MODE_RECMASK | MODE_PLAY)) {
110: if (o->mmc)
111: log_puts(" mmc");
112: if (o->dup)
113: log_puts(" dup");
114: }
115: log_puts("\n");
116: }
117: return o;
118: }
119:
120: struct opt *
1.4 ratchov 121: opt_byname(struct dev *d, char *name)
1.1 ratchov 122: {
123: struct opt *o;
124:
1.5 ratchov 125: for (o = opt_list; o != NULL; o = o->next) {
126: if (d != NULL && o->dev != d)
127: continue;
1.1 ratchov 128: if (strcmp(name, o->name) == 0)
129: return o;
130: }
131: return NULL;
132: }
133:
134: void
1.5 ratchov 135: opt_del(struct opt *o)
1.1 ratchov 136: {
137: struct opt **po;
138:
1.5 ratchov 139: for (po = &opt_list; *po != o; po = &(*po)->next) {
1.1 ratchov 140: #ifdef DEBUG
141: if (*po == NULL) {
142: log_puts("opt_del: not on list\n");
143: panic();
144: }
145: #endif
146: }
147: *po = o->next;
148: xfree(o);
149: }