2009-07-28 21:44:22 +00:00
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/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
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2009-09-12 10:50:51 +00:00
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* vim: ts=4 sw=4 noet ai cindent syntax=c
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2009-07-28 21:44:22 +00:00
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*
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* Conky, a system monitor, based on torsmo
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2005-08-05 01:06:17 +00:00
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*
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2007-08-10 19:53:44 +00:00
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* Any original torsmo code is licensed under the BSD license
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*
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* All code written since the fork of torsmo is licensed under the GPL
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
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2009-03-30 04:55:30 +00:00
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* Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
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2008-02-20 20:30:45 +00:00
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* (see AUTHORS)
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2007-08-10 19:53:44 +00:00
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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2008-02-20 20:30:45 +00:00
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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2005-08-05 01:06:17 +00:00
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*
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2008-12-09 23:35:49 +00:00
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*/
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2005-08-05 01:06:17 +00:00
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2008-03-29 12:44:29 +00:00
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#include "conky.h"
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2008-12-15 21:40:24 +00:00
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#include "logging.h"
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2009-08-05 22:46:51 +00:00
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#include "specials.h"
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2009-10-06 19:48:26 +00:00
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#include "text_object.h"
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2006-03-16 18:07:31 +00:00
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#include <sys/ioctl.h>
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2005-07-20 00:30:40 +00:00
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#include <errno.h>
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#include <fcntl.h>
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2009-04-28 16:56:49 +00:00
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#include <ctype.h>
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2006-03-16 18:07:31 +00:00
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2005-07-20 00:30:40 +00:00
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2009-04-28 16:56:49 +00:00
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#ifdef MIXER_IS_ALSA
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#include <alsa/asoundlib.h>
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#else
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2005-07-20 00:30:40 +00:00
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#ifdef HAVE_LINUX_SOUNDCARD_H
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#include <linux/soundcard.h>
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#else
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2007-03-01 01:43:43 +00:00
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#ifdef __OpenBSD__
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#include <soundcard.h>
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#else
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2005-07-20 00:30:40 +00:00
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#include <sys/soundcard.h>
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2008-02-20 20:30:45 +00:00
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#endif /* __OpenBSD__ */
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#endif /* HAVE_LINUX_SOUNDCARD_H */
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2009-04-28 16:56:49 +00:00
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#endif /* MIXER_IS_ALSA */
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2005-07-20 00:30:40 +00:00
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#define MIXER_DEV "/dev/mixer"
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2009-04-28 16:56:49 +00:00
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#ifdef MIXER_IS_ALSA
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#define MAX_MIXERS 8
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struct mixer_control {
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char name[64];
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snd_mixer_t *mixer;
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snd_mixer_selem_id_t *sid;
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snd_mixer_elem_t *elem;
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long vol_min, vol_max;
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};
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static struct mixer_control mixer_data[MAX_MIXERS];
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int num_mixers = 0;
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static char soundcard[64] = "default";
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#else
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2005-07-20 00:30:40 +00:00
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static int mixer_fd;
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static const char *devs[] = SOUND_DEVICE_NAMES;
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2009-04-28 16:56:49 +00:00
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#endif
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#ifdef MIXER_IS_ALSA
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static int parse_simple_id(const char *str, snd_mixer_selem_id_t *sid)
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{
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int c, size;
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char buf[128];
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char *ptr = buf;
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while (*str == ' ' || *str == '\t')
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str++;
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if (!(*str))
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return -EINVAL;
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size = 1; /* for '\0' */
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if (*str != '"' && *str != '\'') {
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while (*str && *str != ',') {
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if (size < (int)sizeof(buf)) {
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*ptr++ = *str;
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size++;
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}
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str++;
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}
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} else {
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c = *str++;
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while (*str && *str != c) {
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if (size < (int)sizeof(buf)) {
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*ptr++ = *str;
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size++;
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}
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str++;
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}
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if (*str == c)
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str++;
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}
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if (*str == '\0') {
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snd_mixer_selem_id_set_index(sid, 0);
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*ptr = 0;
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goto _set;
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}
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if (*str != ',')
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return -EINVAL;
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*ptr = 0; /* terminate the string */
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str++;
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if (!isdigit(*str))
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return -EINVAL;
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snd_mixer_selem_id_set_index(sid, atoi(str));
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_set:
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snd_mixer_selem_id_set_name(sid, buf);
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return 0;
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}
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2005-07-20 00:30:40 +00:00
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2009-04-28 16:56:49 +00:00
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int mixer_init (const char *name)
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{
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/* from amixer.c, replaced -EINVAL with -1 */
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int i, err;
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if (!name)
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name = "Master";
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for (i = 0; i < num_mixers; i++) {
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if (!strcasecmp (mixer_data[i].name, name)) {
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return i;
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}
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}
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if (i == MAX_MIXERS) {
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fprintf (stderr, "max mixers (%d) reached\n", MAX_MIXERS);
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return -1;
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};
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num_mixers++;
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#define data mixer_data[i]
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strncpy (mixer_data[i].name, name, 63);
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mixer_data[i].name[63] = '\0';
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snd_mixer_selem_id_alloca (&data.sid);
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data.mixer = NULL;
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if (parse_simple_id (name, data.sid) < 0) {
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fprintf (stderr, "Wrong mixer identifier: %s\n", name);
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return -1;
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}
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if ((err = snd_mixer_open (&data.mixer, 0)) < 0) {
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fprintf (stderr, "snd_mixer_open: %s\n", snd_strerror (err));
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return -1;
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}
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if ((err = snd_mixer_attach (data.mixer, soundcard)) < 0) {
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fprintf (stderr, "snd_mixer_attach: %s\n", snd_strerror (err));
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return -1;
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}
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if ((err = snd_mixer_selem_register (data.mixer, NULL, NULL)) < 0) {
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fprintf (stderr, "snd_mixer_selem_register: %s\n",
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snd_strerror (err));
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return -1;
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}
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if ((err = snd_mixer_load (data.mixer)) < 0) {
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fprintf (stderr, "snd_mixer_load: %s\n", snd_strerror (err));
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return -1;
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}
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if (!(data.elem = snd_mixer_find_selem (data.mixer, data.sid))) {
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fprintf (stderr, "snd_mixer_find_selem (\"%s\", %i)\n",
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snd_mixer_selem_id_get_name (data.sid),
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snd_mixer_selem_id_get_index (data.sid));
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return -1;
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}
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snd_mixer_selem_get_playback_volume_range(data.elem, &data.vol_min, &data.vol_max);
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return i;
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_avg (int i)
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2009-04-28 16:56:49 +00:00
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{
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long val;
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snd_mixer_handle_events (data.mixer);
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snd_mixer_selem_get_playback_volume (data.elem, 0, &val);
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return (int) val;
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_left (int i)
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2009-04-28 16:56:49 +00:00
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{
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/* stub */
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return mixer_get_avg (i);
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_right (int i)
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2009-04-28 16:56:49 +00:00
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{
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/* stub */
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return mixer_get_avg (i);
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}
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int mixer_to_255(int i, int x)
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{
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return (x-data.vol_min)*255/(data.vol_max-data.vol_min);
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}
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int mixer_is_mute(int i)
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{
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snd_mixer_handle_events (data.mixer);
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if (snd_mixer_selem_has_playback_switch (data.elem)) {
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int val, err;
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if ((err = snd_mixer_selem_get_playback_switch(data.elem, 0, &val)) < 0)
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fprintf (stderr, "playback_switch: %s\n", snd_strerror (err));
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return !val;
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} else {
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return !mixer_get_avg(i);
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}
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}
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#undef data
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2009-08-05 22:46:51 +00:00
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#else /* MIXER_IS_ALSA */
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2005-07-20 00:30:40 +00:00
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int mixer_init(const char *name)
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{
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unsigned int i;
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2008-02-20 20:30:45 +00:00
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if (name == 0 || name[0] == '\0') {
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2005-07-20 00:30:40 +00:00
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name = "vol";
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2008-02-20 20:30:45 +00:00
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}
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2005-07-20 00:30:40 +00:00
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/* open mixer */
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if (mixer_fd <= 0) {
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mixer_fd = open(MIXER_DEV, O_RDONLY);
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if (mixer_fd == -1) {
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2009-08-01 18:45:43 +00:00
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NORM_ERR("can't open %s: %s", MIXER_DEV, strerror(errno));
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2005-07-20 00:30:40 +00:00
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return -1;
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}
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}
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for (i = 0; i < sizeof(devs) / sizeof(const char *); i++) {
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if (strcasecmp(devs[i], name) == 0) {
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return i;
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}
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}
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return -1;
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}
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static int mixer_get(int i)
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{
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static char rep = 0;
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int val = -1;
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if (ioctl(mixer_fd, MIXER_READ(i), &val) == -1) {
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2008-02-20 20:30:45 +00:00
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if (!rep) {
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2009-08-01 18:45:43 +00:00
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NORM_ERR("mixer ioctl: %s", strerror(errno));
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2008-02-20 20:30:45 +00:00
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}
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2005-07-20 00:30:40 +00:00
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rep = 1;
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return 0;
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}
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rep = 0;
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return val;
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_avg(int i)
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2005-07-20 00:30:40 +00:00
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{
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int v = mixer_get(i);
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2008-02-20 20:30:45 +00:00
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2005-07-20 00:30:40 +00:00
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return ((v >> 8) + (v & 0xFF)) / 2;
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_left(int i)
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2005-07-20 00:30:40 +00:00
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{
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return mixer_get(i) >> 8;
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}
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2009-10-06 19:48:26 +00:00
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static int mixer_get_right(int i)
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2005-07-20 00:30:40 +00:00
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{
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return mixer_get(i) & 0xFF;
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}
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2009-04-28 16:56:49 +00:00
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int mixer_is_mute(int i)
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{
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return !mixer_get(i);
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}
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2009-08-05 22:46:51 +00:00
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2009-10-06 19:48:26 +00:00
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#define mixer_to_255(i, x) x
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2009-08-05 22:46:51 +00:00
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#endif /* MIXER_IS_ALSA */
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2009-10-06 19:48:26 +00:00
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void parse_mixer_arg(struct text_object *obj, const char *arg)
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{
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obj->data.l = mixer_init(arg);
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}
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/* chan specifies the channel to print:
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* -1 := left channel
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* 0 := channel average
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* 1 := right channel
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*/
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void print_mixer(struct text_object *obj, int chan, char *p, int p_max_size)
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{
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int val;
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if (chan < 0)
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val = mixer_get_left(obj->data.l);
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else if (chan == 0)
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val = mixer_get_avg(obj->data.l);
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else
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val = mixer_get_right(obj->data.l);
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percent_print(p, p_max_size, val);
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}
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int check_mixer_muted(struct text_object *obj)
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{
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if (!mixer_is_mute(obj->data.l))
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return 0;
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return 1;
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}
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2009-08-05 22:46:51 +00:00
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#ifdef X11
|
2009-10-06 19:48:26 +00:00
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void scan_mixer_bar(struct text_object *obj, const char *arg)
|
2009-08-05 22:46:51 +00:00
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{
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char buf1[64];
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int n;
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if (arg && sscanf(arg, "%63s %n", buf1, &n) >= 1) {
|
2009-10-25 20:47:47 +00:00
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obj->data.i = mixer_init(buf1);
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scan_bar(obj, arg + n);
|
2009-08-05 22:46:51 +00:00
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} else {
|
2009-10-25 20:47:47 +00:00
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obj->data.i = mixer_init(NULL);
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scan_bar(obj, arg);
|
2009-08-05 22:46:51 +00:00
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}
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}
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2009-10-06 19:48:26 +00:00
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/* see print_mixer() above for a description of 'chan' */
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void print_mixer_bar(struct text_object *obj, int chan, char *p)
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|
|
|
{
|
|
|
|
int val;
|
|
|
|
|
|
|
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if (chan < 0)
|
2009-10-25 20:47:47 +00:00
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val = mixer_get_left(obj->data.i);
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2009-10-06 19:48:26 +00:00
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else if (chan == 0)
|
2009-10-25 20:47:47 +00:00
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val = mixer_get_avg(obj->data.i);
|
2009-10-06 19:48:26 +00:00
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else
|
2009-10-25 20:47:47 +00:00
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|
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val = mixer_get_right(obj->data.i);
|
2009-10-06 19:48:26 +00:00
|
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|
2009-10-25 20:47:47 +00:00
|
|
|
new_bar(obj, p, mixer_to_255(obj->data.i, val));
|
2009-10-06 19:48:26 +00:00
|
|
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}
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#endif /* X11 */
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