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/* $OpenBSD: opt.c,v 1.4 2018/06/26 07:12:35 ratchov Exp $ */
/*
* Copyright (c) 2008-2011 Alexandre Ratchov <alex@caoua.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <string.h>
#include "dev.h"
#include "opt.h"
#include "utils.h"
/*
* create a new audio sub-device "configuration"
*/
struct opt *
opt_new(struct dev *d, char *name,
int pmin, int pmax, int rmin, int rmax,
int maxweight, int mmc, int dup, unsigned int mode)
{
struct opt *o;
unsigned int len;
char c;
if (opt_byname(d, name)) {
dev_log(d);
log_puts(".");
log_puts(name);
log_puts(": already defined\n");
return NULL;
}
for (len = 0; name[len] != '\0'; len++) {
if (len == OPT_NAMEMAX) {
log_puts(name);
log_puts(": too long\n");
return NULL;
}
c = name[len];
if ((c < 'a' || c > 'z') &&
(c < 'A' || c > 'Z')) {
log_puts(name);
log_puts(": only alphabetic chars allowed\n");
return NULL;
}
}
o = xmalloc(sizeof(struct opt));
if (mode & MODE_PLAY) {
o->pmin = pmin;
o->pmax = pmax;
}
if (mode & MODE_RECMASK) {
o->rmin = rmin;
o->rmax = rmax;
}
o->maxweight = maxweight;
o->mmc = mmc;
o->dup = dup;
o->mode = mode;
memcpy(o->name, name, len + 1);
o->next = d->opt_list;
d->opt_list = o;
if (log_level >= 2) {
dev_log(d);
log_puts(".");
log_puts(o->name);
log_puts(":");
if (o->mode & MODE_REC) {
log_puts(" rec=");
log_putu(o->rmin);
log_puts(":");
log_putu(o->rmax);
}
if (o->mode & MODE_PLAY) {
log_puts(" play=");
log_putu(o->pmin);
log_puts(":");
log_putu(o->pmax);
log_puts(" vol=");
log_putu(o->maxweight);
}
if (o->mode & MODE_MON) {
log_puts(" mon=");
log_putu(o->rmin);
log_puts(":");
log_putu(o->rmax);
}
if (o->mode & (MODE_RECMASK | MODE_PLAY)) {
if (o->mmc)
log_puts(" mmc");
if (o->dup)
log_puts(" dup");
}
log_puts("\n");
}
return o;
}
struct opt *
opt_byname(struct dev *d, char *name)
{
struct opt *o;
for (o = d->opt_list; o != NULL; o = o->next) {
if (strcmp(name, o->name) == 0)
return o;
}
return NULL;
}
void
opt_del(struct dev *d, struct opt *o)
{
struct opt **po;
for (po = &d->opt_list; *po != o; po = &(*po)->next) {
#ifdef DEBUG
if (*po == NULL) {
log_puts("opt_del: not on list\n");
panic();
}
#endif
}
*po = o->next;
xfree(o);
}
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