2 This file is part of PulseAudio.
4 Copyright 2005-2006 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <lirc/lirc_client.h>
33 #include <pulse/xmalloc.h>
35 #include <pulsecore/module.h>
36 #include <pulsecore/log.h>
37 #include <pulsecore/namereg.h>
38 #include <pulsecore/sink.h>
39 #include <pulsecore/modargs.h>
40 #include <pulsecore/macro.h>
42 #include "module-lirc-symdef.h"
44 PA_MODULE_AUTHOR("Lennart Poettering");
45 PA_MODULE_DESCRIPTION("LIRC volume control");
46 PA_MODULE_VERSION(PACKAGE_VERSION);
47 PA_MODULE_LOAD_ONCE(TRUE);
48 PA_MODULE_USAGE("config=<config file> sink=<sink name> appname=<lirc application name> volume_limit=<volume limit> volume_step=<volume change step>");
50 static const char* const valid_modargs[] = {
62 struct lirc_config *config;
65 float mute_toggle_save;
66 pa_volume_t volume_limit;
67 pa_volume_t volume_step;
70 static void io_callback(pa_mainloop_api *io, pa_io_event *e, int fd, pa_io_event_flags_t events, void*userdata) {
71 struct userdata *u = userdata;
72 char *name = NULL, *code = NULL;
77 if (events & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) {
78 pa_log("Lost connection to LIRC daemon.");
82 if (events & PA_IO_EVENT_INPUT) {
85 if (lirc_nextcode(&code) != 0 || !code) {
86 pa_log("lirc_nextcode() failed.");
91 c[strcspn(c, "\n\r")] = 0;
92 pa_log_debug("Raw IR code '%s'", c);
95 while (lirc_code2char(u->config, code, &name) == 0 && name) {
103 } volchange = INVALID;
105 pa_log_info("Translated IR code '%s'", name);
107 if (strcasecmp(name, "volume-up") == 0)
109 else if (strcasecmp(name, "volume-down") == 0)
111 else if (strcasecmp(name, "mute") == 0)
113 else if (strcasecmp(name, "mute-toggle") == 0)
114 volchange = MUTE_TOGGLE;
115 else if (strcasecmp(name, "reset") == 0)
118 if (volchange == INVALID)
119 pa_log_warn("Received unknown IR code '%s'", name);
123 if (!(s = pa_namereg_get(u->module->core, u->sink_name, PA_NAMEREG_SINK)))
124 pa_log("Failed to get sink '%s'", u->sink_name);
126 pa_cvolume cv = *pa_sink_get_volume(s, FALSE);
130 pa_cvolume_inc_clamp(&cv, u->volume_step, u->volume_limit);
131 pa_sink_set_volume(s, &cv, TRUE, TRUE);
135 pa_cvolume_dec(&cv, u->volume_step);
136 pa_sink_set_volume(s, &cv, TRUE, TRUE);
140 pa_sink_set_mute(s, TRUE, TRUE);
144 pa_sink_set_mute(s, FALSE, TRUE);
148 pa_sink_set_mute(s, !pa_sink_get_mute(s, FALSE), TRUE);
152 pa_assert_not_reached();
164 u->module->core->mainloop->io_free(u->io);
167 pa_module_unload_request(u->module, TRUE);
172 int pa__init(pa_module*m) {
173 pa_modargs *ma = NULL;
175 pa_volume_t volume_limit = PA_CLAMP_VOLUME(PA_VOLUME_NORM*3/2);
176 pa_volume_t volume_step = PA_VOLUME_NORM/20;
180 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
181 pa_log("Failed to parse module arguments");
185 if (pa_modargs_get_value_u32(ma, "volume_limit", &volume_limit) < 0) {
186 pa_log("Failed to parse volume limit");
190 if (pa_modargs_get_value_u32(ma, "volume_step", &volume_step) < 0) {
191 pa_log("Failed to parse volume step");
195 m->userdata = u = pa_xnew(struct userdata, 1);
199 u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
201 u->mute_toggle_save = 0;
202 u->volume_limit = PA_CLAMP_VOLUME(volume_limit);
203 u->volume_step = PA_CLAMP_VOLUME(volume_step);
205 if ((u->lirc_fd = lirc_init((char*) pa_modargs_get_value(ma, "appname", "pulseaudio"), 1)) < 0) {
206 pa_log("lirc_init() failed.");
210 if (lirc_readconfig((char*) pa_modargs_get_value(ma, "config", NULL), &u->config, NULL) < 0) {
211 pa_log("lirc_readconfig() failed.");
215 u->io = m->core->mainloop->io_new(m->core->mainloop, u->lirc_fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);
230 void pa__done(pa_module*m) {
234 if (!(u = m->userdata))
238 m->core->mainloop->io_free(u->io);
241 lirc_freeconfig(u->config);
246 pa_xfree(u->sink_name);