mirror of https://github.com/ericonr/sndio.git
136 lines
2.9 KiB
C
136 lines
2.9 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2008-2011 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <string.h>
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#include "dev.h"
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#include "opt.h"
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#include "utils.h"
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/*
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* create a new audio sub-device "configuration"
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*/
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struct opt *
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opt_new(struct dev *d, char *name,
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int pmin, int pmax, int rmin, int rmax,
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int maxweight, int mmc, int dup, unsigned int mode)
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{
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struct opt *o;
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unsigned int len;
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char c;
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if (opt_byname(d, name)) {
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dev_log(d);
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log_puts(".");
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log_puts(name);
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log_puts(": already defined\n");
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return NULL;
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}
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for (len = 0; name[len] != '\0'; len++) {
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if (len == OPT_NAMEMAX) {
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log_puts(name);
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log_puts(": too long\n");
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return NULL;
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}
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c = name[len];
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if ((c < 'a' || c > 'z') &&
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(c < 'A' || c > 'Z')) {
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log_puts(name);
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log_puts(": only alphabetic chars allowed\n");
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return NULL;
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}
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}
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o = xmalloc(sizeof(struct opt));
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if (mode & MODE_PLAY) {
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o->pmin = pmin;
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o->pmax = pmax;
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}
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if (mode & MODE_RECMASK) {
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o->rmin = rmin;
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o->rmax = rmax;
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}
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o->maxweight = maxweight;
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o->mmc = mmc;
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o->dup = dup;
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o->mode = mode;
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memcpy(o->name, name, len + 1);
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o->next = d->opt_list;
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d->opt_list = o;
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if (log_level >= 2) {
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dev_log(d);
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log_puts(".");
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log_puts(o->name);
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log_puts(":");
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if (o->mode & MODE_REC) {
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log_puts(" rec=");
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log_putu(o->rmin);
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log_puts(":");
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log_putu(o->rmax);
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}
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if (o->mode & MODE_PLAY) {
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log_puts(" play=");
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log_putu(o->pmin);
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log_puts(":");
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log_putu(o->pmax);
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log_puts(" vol=");
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log_putu(o->maxweight);
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}
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if (o->mode & MODE_MON) {
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log_puts(" mon=");
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log_putu(o->rmin);
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log_puts(":");
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log_putu(o->rmax);
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}
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if (o->mode & (MODE_RECMASK | MODE_PLAY)) {
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if (o->mmc)
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log_puts(" mmc");
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if (o->dup)
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log_puts(" dup");
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}
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log_puts("\n");
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}
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return o;
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}
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struct opt *
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opt_byname(struct dev *d, char *name)
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{
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struct opt *o;
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for (o = d->opt_list; o != NULL; o = o->next) {
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if (strcmp(name, o->name) == 0)
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return o;
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}
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return NULL;
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}
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void
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opt_del(struct dev *d, struct opt *o)
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{
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struct opt **po;
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for (po = &d->opt_list; *po != o; po = &(*po)->next) {
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#ifdef DEBUG
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if (*po == NULL) {
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log_puts("opt_del: not on list\n");
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panic();
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}
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#endif
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}
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*po = o->next;
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xfree(o);
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}
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