diff options
Diffstat (limited to '')
| -rw-r--r-- | src/mixer/alsa_mixer_plugin.c (renamed from src/mixer/alsa_mixer.c) | 66 |
1 files changed, 42 insertions, 24 deletions
diff --git a/src/mixer/alsa_mixer.c b/src/mixer/alsa_mixer_plugin.c index 52e553cc5..38f36cb8f 100644 --- a/src/mixer/alsa_mixer.c +++ b/src/mixer/alsa_mixer_plugin.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2009 The Music Player Daemon Project + * Copyright (C) 2003-2010 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify @@ -17,8 +17,9 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include "../output_api.h" -#include "../mixer_api.h" +#include "config.h" +#include "mixer_api.h" +#include "output_api.h" #include <glib.h> #include <alsa/asoundlib.h> @@ -42,12 +43,22 @@ struct alsa_mixer { int volume_set; }; +/** + * The quark used for GError.domain. + */ +static inline GQuark +alsa_mixer_quark(void) +{ + return g_quark_from_static_string("alsa_mixer"); +} + static struct mixer * -alsa_mixer_init(const struct config_param *param) +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); + mixer_init(&am->base, &alsa_mixer_plugin); am->device = config_get_block_string(param, "mixer_device", VOLUME_MIXER_ALSA_DEFAULT); @@ -81,7 +92,7 @@ alsa_mixer_close(struct mixer *data) } static bool -alsa_mixer_open(struct mixer *data) +alsa_mixer_open(struct mixer *data, GError **error_r) { struct alsa_mixer *am = (struct alsa_mixer *)data; int err; @@ -91,29 +102,33 @@ alsa_mixer_open(struct mixer *data) err = snd_mixer_open(&am->handle, 0); if (err < 0) { - g_warning("problems opening alsa mixer: %s\n", snd_strerror(err)); + g_set_error(error_r, alsa_mixer_quark(), err, + "snd_mixer_open() failed: %s", snd_strerror(err)); return false; } if ((err = snd_mixer_attach(am->handle, am->device)) < 0) { - g_warning("problems attaching alsa mixer: %s\n", - snd_strerror(err)); alsa_mixer_close(data); + 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_warning("problems snd_mixer_selem_register'ing: %s\n", - snd_strerror(err)); alsa_mixer_close(data); + 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_warning("problems snd_mixer_selem_register'ing: %s\n", - snd_strerror(err)); alsa_mixer_close(data); + g_set_error(error_r, alsa_mixer_quark(), err, + "snd_mixer_load() failed: %s\n", + snd_strerror(err)); return false; } @@ -138,14 +153,14 @@ alsa_mixer_open(struct mixer *data) return true; } - g_warning("can't find alsa mixer control \"%s\"\n", am->control); - alsa_mixer_close(data); + g_set_error(error_r, alsa_mixer_quark(), 0, + "no such mixer control: %s", am->control); return false; } static int -alsa_mixer_get_volume(struct mixer *mixer) +alsa_mixer_get_volume(struct mixer *mixer, GError **error_r) { struct alsa_mixer *am = (struct alsa_mixer *)mixer; int err; @@ -156,8 +171,9 @@ alsa_mixer_get_volume(struct mixer *mixer) err = snd_mixer_handle_events(am->handle); if (err < 0) { - g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n", - snd_strerror(err), "handle_events"); + g_set_error(error_r, alsa_mixer_quark(), err, + "snd_mixer_handle_events() failed: %s", + snd_strerror(err)); return false; } @@ -165,8 +181,9 @@ alsa_mixer_get_volume(struct mixer *mixer) SND_MIXER_SCHN_FRONT_LEFT, &level); if (err < 0) { - g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n", - snd_strerror(err), "selem_get_playback_volume"); + g_set_error(error_r, alsa_mixer_quark(), err, + "failed to read ALSA volume: %s", + snd_strerror(err)); return false; } @@ -183,7 +200,7 @@ alsa_mixer_get_volume(struct mixer *mixer) } static bool -alsa_mixer_set_volume(struct mixer *mixer, unsigned volume) +alsa_mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r) { struct alsa_mixer *am = (struct alsa_mixer *)mixer; float vol; @@ -203,15 +220,16 @@ alsa_mixer_set_volume(struct mixer *mixer, unsigned volume) err = snd_mixer_selem_set_playback_volume_all(am->elem, level); if (err < 0) { - g_warning("problems setting alsa volume: %s\n", - snd_strerror(err)); + 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 = { +const struct mixer_plugin alsa_mixer_plugin = { .init = alsa_mixer_init, .finish = alsa_mixer_finish, .open = alsa_mixer_open, |