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-rw-r--r--src/modules/module-lirc.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/src/modules/module-lirc.c b/src/modules/module-lirc.c
new file mode 100644
index 00000000..ea8a2bd2
--- /dev/null
+++ b/src/modules/module-lirc.c
@@ -0,0 +1,241 @@
+/* $Id$ */
+
+/***
+ This file is part of polypaudio.
+
+ polypaudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ polypaudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with polypaudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include <lirc/lirc_client.h>
+#include <stdlib.h>
+
+#include <polypcore/module.h>
+#include <polypcore/log.h>
+#include <polypcore/namereg.h>
+#include <polypcore/sink.h>
+#include <polypcore/xmalloc.h>
+#include <polypcore/modargs.h>
+
+#include "module-lirc-symdef.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("LIRC volume control")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_USAGE("config=<config file> sink=<sink name> appname=<lirc application name>")
+
+static const char* const valid_modargs[] = {
+ "config",
+ "sink",
+ "appname",
+ NULL,
+};
+
+struct userdata {
+ int lirc_fd;
+ pa_io_event *io;
+ struct lirc_config *config;
+ char *sink_name;
+ pa_module *module;
+ float mute_toggle_save;
+};
+
+static int lirc_in_use = 0;
+
+static void io_callback(pa_mainloop_api *io, PA_GCC_UNUSED pa_io_event *e, PA_GCC_UNUSED int fd, pa_io_event_flags_t events, void*userdata) {
+ struct userdata *u = userdata;
+ char *name = NULL, *code = NULL;
+ assert(io);
+ assert(u);
+
+ if (events & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) {
+ pa_log(__FILE__": lost connection to LIRC daemon.\n");
+ goto fail;
+ }
+
+ if (events & PA_IO_EVENT_INPUT) {
+ char *c;
+
+ if (lirc_nextcode(&code) != 0 || !code) {
+ pa_log(__FILE__": lirc_nextcode() failed.\n");
+ goto fail;
+ }
+
+ c = pa_xstrdup(code);
+ c[strcspn(c, "\n\r")] = 0;
+ pa_log_debug(__FILE__": raw IR code '%s'\n", c);
+ pa_xfree(c);
+
+ while (lirc_code2char(u->config, code, &name) == 0 && name) {
+ enum { INVALID, UP, DOWN, MUTE, RESET, MUTE_TOGGLE } volchange = INVALID;
+
+ pa_log_info(__FILE__": translated IR code '%s'\n", name);
+
+ if (strcasecmp(name, "volume-up") == 0)
+ volchange = UP;
+ else if (strcasecmp(name, "volume-down") == 0)
+ volchange = DOWN;
+ else if (strcasecmp(name, "mute") == 0)
+ volchange = MUTE;
+ else if (strcasecmp(name, "mute-toggle") == 0)
+ volchange = MUTE_TOGGLE;
+ else if (strcasecmp(name, "reset") == 0)
+ volchange = RESET;
+
+ if (volchange == INVALID)
+ pa_log_warn(__FILE__": recieved unknown IR code '%s'\n", name);
+ else {
+ pa_sink *s;
+
+ if (!(s = pa_namereg_get(u->module->core, u->sink_name, PA_NAMEREG_SINK, 1)))
+ pa_log(__FILE__": failed to get sink '%s'\n", u->sink_name);
+ else {
+ pa_volume_t v = pa_cvolume_avg(pa_sink_get_volume(s, PA_MIXER_HARDWARE));
+ pa_cvolume cv;
+#define DELTA (PA_VOLUME_NORM/20)
+
+ switch (volchange) {
+ case UP:
+ v += PA_VOLUME_NORM/20;
+ break;
+
+ case DOWN:
+ if (v > DELTA)
+ v -= DELTA;
+ else
+ v = PA_VOLUME_MUTED;
+
+ break;
+
+ case MUTE:
+ v = PA_VOLUME_MUTED;
+ break;
+
+ case RESET:
+ v = PA_VOLUME_NORM;
+ break;
+
+ case MUTE_TOGGLE: {
+
+ if (v > 0) {
+ u->mute_toggle_save = v;
+ v = PA_VOLUME_MUTED;
+ } else
+ v = u->mute_toggle_save;
+ }
+ default:
+ ;
+ }
+
+ pa_cvolume_set(&cv, PA_CHANNELS_MAX, v);
+ pa_sink_set_volume(s, PA_MIXER_HARDWARE, &cv);
+ }
+ }
+ }
+ }
+
+ free(code);
+
+ return;
+
+fail:
+ u->module->core->mainloop->io_free(u->io);
+ u->io = NULL;
+
+ pa_module_unload_request(u->module);
+
+ free(code);
+}
+
+int pa__init(pa_core *c, pa_module*m) {
+ pa_modargs *ma = NULL;
+ struct userdata *u;
+ assert(c && m);
+
+ if (lirc_in_use) {
+ pa_log(__FILE__": module-lirc may no be loaded twice.\n");
+ return -1;
+ }
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log(__FILE__": Failed to parse module arguments\n");
+ goto fail;
+ }
+
+ m->userdata = u = pa_xmalloc(sizeof(struct userdata));
+ u->module = m;
+ u->io = NULL;
+ u->config = NULL;
+ u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
+ u->lirc_fd = -1;
+ u->mute_toggle_save = 0;
+
+ if ((u->lirc_fd = lirc_init((char*) pa_modargs_get_value(ma, "appname", "polypaudio"), 1)) < 0) {
+ pa_log(__FILE__": lirc_init() failed.\n");
+ goto fail;
+ }
+
+ if (lirc_readconfig((char*) pa_modargs_get_value(ma, "config", NULL), &u->config, NULL) < 0) {
+ pa_log(__FILE__": lirc_readconfig() failed.\n");
+ goto fail;
+ }
+
+ u->io = c->mainloop->io_new(c->mainloop, u->lirc_fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);
+
+ lirc_in_use = 1;
+
+ pa_modargs_free(ma);
+
+ return 0;
+
+fail:
+
+ if (ma)
+ pa_modargs_free(ma);
+
+ pa__done(c, m);
+ return -1;
+}
+
+void pa__done(pa_core *c, pa_module*m) {
+ struct userdata *u;
+ assert(c);
+ assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if (u->io)
+ m->core->mainloop->io_free(u->io);
+
+ if (u->config)
+ lirc_freeconfig(u->config);
+
+ if (u->lirc_fd >= 0)
+ lirc_deinit();
+
+ pa_xfree(u->sink_name);
+ pa_xfree(u);
+
+ lirc_in_use = 0;
+}