1 files changed, 0 insertions, 431 deletions
diff --git a/src/mixer/alsa_mixer_plugin.c b/src/mixer/alsa_mixer_plugin.c
deleted file mode 100644
index 22e4e22bd..000000000
--- a/src/mixer/alsa_mixer_plugin.c
+++ /dev/null
@@ -1,431 +0,0 @@
-/*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "mixer_api.h"
-#include "output_api.h"
-#include "event_pipe.h"
-
-#include <glib.h>
-#include <alsa/asoundlib.h>
-
-#define VOLUME_MIXER_ALSA_DEFAULT		"default"
-#define VOLUME_MIXER_ALSA_CONTROL_DEFAULT	"PCM"
-#define VOLUME_MIXER_ALSA_INDEX_DEFAULT		0
-
-struct alsa_mixer_source {
-	GSource source;
-
-	snd_mixer_t *mixer;
-
-	/** a linked list of all registered GPollFD objects */
-	GSList *fds;
-};
-
-struct alsa_mixer {
-	/** the base mixer class */
-	struct mixer base;
-
-	const char *device;
-	const char *control;
-	unsigned int index;
-
-	snd_mixer_t *handle;
-	snd_mixer_elem_t *elem;
-	long volume_min;
-	long volume_max;
-	int volume_set;
-
-	struct alsa_mixer_source *source;
-};
-
-/**
- * The quark used for GError.domain.
- */
-static inline GQuark
-alsa_mixer_quark(void)
-{
-	return g_quark_from_static_string("alsa_mixer");
-}
-
-/*
- * GSource helper functions
- *
- */
-
-static GSList **
-find_fd(GSList **list_r, int fd)
-{
-	while (true) {
-		GSList *list = *list_r;
-		if (list == NULL)
-			return NULL;
-
-		GPollFD *p = list->data;
-		if (p->fd == fd)
-			return list_r;
-
-		list_r = &list->next;
-	}
-}
-
-static void
-alsa_mixer_update_fd(struct alsa_mixer_source *source, const struct pollfd *p,
-		     GSList **old_r)
-{
-	GSList **found_r = find_fd(old_r, p->fd);
-	if (found_r == NULL) {
-		/* new fd */
-		GPollFD *q = g_new(GPollFD, 1);
-		q->fd = p->fd;
-		q->events = p->events;
-		g_source_add_poll(&source->source, q);
-		source->fds = g_slist_prepend(source->fds, q);
-		return;
-	}
-
-	GSList *found = *found_r;
-	*found_r = found->next;
-
-	GPollFD *q = found->data;
-	if (q->events != p->events) {
-		/* refresh events */
-		g_source_remove_poll(&source->source, q);
-		q->events = p->events;
-		g_source_add_poll(&source->source, q);
-	}
-
-	found->next = source->fds;
-	source->fds = found;
-}
-
-static void
-alsa_mixer_update_fds(struct alsa_mixer_source *source)
-{
-	int count = snd_mixer_poll_descriptors_count(source->mixer);
-	if (count < 0)
-		count = 0;
-
-	struct pollfd *pfds = g_new(struct pollfd, count);
-	count = snd_mixer_poll_descriptors(source->mixer, pfds, count);
-	if (count < 0)
-		count = 0;
-
-	GSList *old = source->fds;
-	source->fds = NULL;
-
-	for (int i = 0; i < count; ++i)
-		alsa_mixer_update_fd(source, &pfds[i], &old);
-	g_free(pfds);
-
-	for (; old != NULL; old = old->next) {
-		GPollFD *q = old->data;
-		g_source_remove_poll(&source->source, q);
-		g_free(q);
-	}
-
-	g_slist_free(old);
-}
-
-/*
- * GSource methods
- *
- */
-
-static gboolean
-alsa_mixer_source_prepare(GSource *_source, G_GNUC_UNUSED gint *timeout_r)
-{
-	struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
-	alsa_mixer_update_fds(source);
-
-	return false;
-}
-
-static gboolean
-alsa_mixer_source_check(GSource *_source)
-{
-	struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
-
-	for (const GSList *i = source->fds; i != NULL; i = i->next) {
-		const GPollFD *poll_fd = i->data;
-		if (poll_fd->revents != 0)
-			return true;
-	}
-
-	return false;
-}
-
-static gboolean
-alsa_mixer_source_dispatch(GSource *_source,
-			   G_GNUC_UNUSED GSourceFunc callback,
-			   G_GNUC_UNUSED gpointer user_data)
-{
-	struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
-
-	snd_mixer_handle_events(source->mixer);
-	return true;
-}
-
-static void
-alsa_mixer_source_finalize(GSource *_source)
-{
-	struct alsa_mixer_source *source = (struct alsa_mixer_source *)_source;
-
-	for (GSList *i = source->fds; i != NULL; i = i->next)
-		g_free(i->data);
-
-	g_slist_free(source->fds);
-}
-
-static GSourceFuncs alsa_mixer_source_funcs = {
-	.prepare = alsa_mixer_source_prepare,
-	.check = alsa_mixer_source_check,
-	.dispatch = alsa_mixer_source_dispatch,
-	.finalize = alsa_mixer_source_finalize,
-};
-
-/*
- * libasound callbacks
- *
- */
-
-static int
-alsa_mixer_elem_callback(G_GNUC_UNUSED snd_mixer_elem_t *elem, unsigned mask)
-{
-	if (mask & SND_CTL_EVENT_MASK_VALUE)
-		event_pipe_emit(PIPE_EVENT_MIXER);
-
-	return 0;
-}
-
-/*
- * mixer_plugin methods
- *
- */
-
-static struct mixer *
-alsa_mixer_init(G_GNUC_UNUSED void *ao, const struct config_param *param,
-		G_GNUC_UNUSED GError **error_r)
-{
-	struct alsa_mixer *am = g_new(struct alsa_mixer, 1);
-
-	mixer_init(&am->base, &alsa_mixer_plugin);
-
-	am->device = config_get_block_string(param, "mixer_device",
-					     VOLUME_MIXER_ALSA_DEFAULT);
-	am->control = config_get_block_string(param, "mixer_control",
-					      VOLUME_MIXER_ALSA_CONTROL_DEFAULT);
-	am->index = config_get_block_unsigned(param, "mixer_index",
-					      VOLUME_MIXER_ALSA_INDEX_DEFAULT);
-
-	return &am->base;
-}
-
-static void
-alsa_mixer_finish(struct mixer *data)
-{
-	struct alsa_mixer *am = (struct alsa_mixer *)data;
-
-	g_free(am);
-
-	/* free libasound's config cache */
-	snd_config_update_free_global();
-}
-
-G_GNUC_PURE
-static snd_mixer_elem_t *
-alsa_mixer_lookup_elem(snd_mixer_t *handle, const char *name, unsigned idx)
-{
-	for (snd_mixer_elem_t *elem = snd_mixer_first_elem(handle);
-	     elem != NULL; elem = snd_mixer_elem_next(elem)) {
-		if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE &&
-		    g_ascii_strcasecmp(snd_mixer_selem_get_name(elem),
-				       name) == 0 &&
-		    snd_mixer_selem_get_index(elem) == idx)
-			return elem;
-	}
-
-	return NULL;
-}
-
-static bool
-alsa_mixer_setup(struct alsa_mixer *am, GError **error_r)
-{
-	int err;
-
-	if ((err = snd_mixer_attach(am->handle, am->device)) < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "failed to attach to %s: %s",
-			    am->device, snd_strerror(err));
-		return false;
-	}
-
-	if ((err = snd_mixer_selem_register(am->handle, NULL,
-		    NULL)) < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "snd_mixer_selem_register() failed: %s",
-			    snd_strerror(err));
-		return false;
-	}
-
-	if ((err = snd_mixer_load(am->handle)) < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "snd_mixer_load() failed: %s\n",
-			    snd_strerror(err));
-		return false;
-	}
-
-	am->elem = alsa_mixer_lookup_elem(am->handle, am->control, am->index);
-	if (am->elem == NULL) {
-		g_set_error(error_r, alsa_mixer_quark(), 0,
-			    "no such mixer control: %s", am->control);
-		return false;
-	}
-
-	snd_mixer_selem_get_playback_volume_range(am->elem,
-						  &am->volume_min,
-						  &am->volume_max);
-
-	snd_mixer_elem_set_callback(am->elem, alsa_mixer_elem_callback);
-
-	am->source = (struct alsa_mixer_source *)
-		g_source_new(&alsa_mixer_source_funcs, sizeof(*am->source));
-	am->source->mixer = am->handle;
-	am->source->fds = NULL;
-	g_source_attach(&am->source->source, g_main_context_default());
-
-	return true;
-}
-
-static bool
-alsa_mixer_open(struct mixer *data, GError **error_r)
-{
-	struct alsa_mixer *am = (struct alsa_mixer *)data;
-	int err;
-
-	am->volume_set = -1;
-
-	err = snd_mixer_open(&am->handle, 0);
-	if (err < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "snd_mixer_open() failed: %s", snd_strerror(err));
-		return false;
-	}
-
-	if (!alsa_mixer_setup(am, error_r)) {
-		snd_mixer_close(am->handle);
-		return false;
-	}
-
-	return true;
-}
-
-static void
-alsa_mixer_close(struct mixer *data)
-{
-	struct alsa_mixer *am = (struct alsa_mixer *)data;
-
-	assert(am->handle != NULL);
-
-	g_source_destroy(&am->source->source);
-	g_source_unref(&am->source->source);
-
-	snd_mixer_elem_set_callback(am->elem, NULL);
-	snd_mixer_close(am->handle);
-}
-
-static int
-alsa_mixer_get_volume(struct mixer *mixer, GError **error_r)
-{
-	struct alsa_mixer *am = (struct alsa_mixer *)mixer;
-	int err;
-	int ret;
-	long level;
-
-	assert(am->handle != NULL);
-
-	err = snd_mixer_handle_events(am->handle);
-	if (err < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "snd_mixer_handle_events() failed: %s",
-			    snd_strerror(err));
-		return false;
-	}
-
-	err = snd_mixer_selem_get_playback_volume(am->elem,
-						  SND_MIXER_SCHN_FRONT_LEFT,
-						  &level);
-	if (err < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "failed to read ALSA volume: %s",
-			    snd_strerror(err));
-		return false;
-	}
-
-	ret = ((am->volume_set / 100.0) * (am->volume_max - am->volume_min)
-	       + am->volume_min) + 0.5;
-	if (am->volume_set > 0 && ret == level) {
-		ret = am->volume_set;
-	} else {
-		ret = (int)(100 * (((float)(level - am->volume_min)) /
-				   (am->volume_max - am->volume_min)) + 0.5);
-	}
-
-	return ret;
-}
-
-static bool
-alsa_mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r)
-{
-	struct alsa_mixer *am = (struct alsa_mixer *)mixer;
-	float vol;
-	long level;
-	int err;
-
-	assert(am->handle != NULL);
-
-	vol = volume;
-
-	am->volume_set = vol + 0.5;
-
-	level = (long)(((vol / 100.0) * (am->volume_max - am->volume_min) +
-			am->volume_min) + 0.5);
-	level = level > am->volume_max ? am->volume_max : level;
-	level = level < am->volume_min ? am->volume_min : level;
-
-	err = snd_mixer_selem_set_playback_volume_all(am->elem, level);
-	if (err < 0) {
-		g_set_error(error_r, alsa_mixer_quark(), err,
-			    "failed to set ALSA volume: %s",
-			    snd_strerror(err));
-		return false;
-	}
-
-	return true;
-}
-
-const struct mixer_plugin alsa_mixer_plugin = {
-	.init = alsa_mixer_init,
-	.finish = alsa_mixer_finish,
-	.open = alsa_mixer_open,
-	.close = alsa_mixer_close,
-	.get_volume = alsa_mixer_get_volume,
-	.set_volume = alsa_mixer_set_volume,
-	.global = true,
-};