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