From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 16 Feb 2006 19:19:58 +0000 Subject: Reorganised the source tree. We now have src/ with a couple of subdirs: * daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/modules/module-lirc.c | 241 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 src/modules/module-lirc.c (limited to 'src/modules/module-lirc.c') 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 +#endif + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#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= sink= appname=") + +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; +} -- cgit