diff options
Diffstat (limited to '')
| -rw-r--r-- | src/mixer/oss_mixer_plugin.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/src/mixer/oss_mixer_plugin.c b/src/mixer/oss_mixer_plugin.c deleted file mode 100644 index 608f1f9b8..000000000 --- a/src/mixer/oss_mixer_plugin.c +++ /dev/null @@ -1,216 +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 "fd_util.h" - -#include <glib.h> - -#include <assert.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <fcntl.h> -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> - -#if defined(__OpenBSD__) || defined(__NetBSD__) -# include <soundcard.h> -#else /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ -# include <sys/soundcard.h> -#endif /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ - -#define VOLUME_MIXER_OSS_DEFAULT "/dev/mixer" - -struct oss_mixer { - /** the base mixer class */ - struct mixer base; - - const char *device; - const char *control; - - int device_fd; - int volume_control; -}; - -/** - * The quark used for GError.domain. - */ -static inline GQuark -oss_mixer_quark(void) -{ - return g_quark_from_static_string("oss_mixer"); -} - -static int -oss_find_mixer(const char *name) -{ - const char *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS; - size_t name_length = strlen(name); - - for (unsigned i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - if (g_ascii_strncasecmp(name, labels[i], name_length) == 0 && - (labels[i][name_length] == 0 || - labels[i][name_length] == ' ')) - return i; - } - return -1; -} - -static struct mixer * -oss_mixer_init(G_GNUC_UNUSED void *ao, const struct config_param *param, - GError **error_r) -{ - struct oss_mixer *om = g_new(struct oss_mixer, 1); - - mixer_init(&om->base, &oss_mixer_plugin); - - om->device = config_get_block_string(param, "mixer_device", - VOLUME_MIXER_OSS_DEFAULT); - om->control = config_get_block_string(param, "mixer_control", NULL); - - if (om->control != NULL) { - om->volume_control = oss_find_mixer(om->control); - if (om->volume_control < 0) { - g_free(om); - g_set_error(error_r, oss_mixer_quark(), 0, - "no such mixer control: %s", om->control); - return NULL; - } - } else - om->volume_control = SOUND_MIXER_PCM; - - return &om->base; -} - -static void -oss_mixer_finish(struct mixer *data) -{ - struct oss_mixer *om = (struct oss_mixer *) data; - - g_free(om); -} - -static void -oss_mixer_close(struct mixer *data) -{ - struct oss_mixer *om = (struct oss_mixer *) data; - - assert(om->device_fd >= 0); - - close(om->device_fd); -} - -static bool -oss_mixer_open(struct mixer *data, GError **error_r) -{ - struct oss_mixer *om = (struct oss_mixer *) data; - - om->device_fd = open_cloexec(om->device, O_RDONLY, 0); - if (om->device_fd < 0) { - g_set_error(error_r, oss_mixer_quark(), errno, - "failed to open %s: %s", - om->device, g_strerror(errno)); - return false; - } - - if (om->control) { - int devmask = 0; - - if (ioctl(om->device_fd, SOUND_MIXER_READ_DEVMASK, &devmask) < 0) { - g_set_error(error_r, oss_mixer_quark(), errno, - "READ_DEVMASK failed: %s", - g_strerror(errno)); - oss_mixer_close(data); - return false; - } - - if (((1 << om->volume_control) & devmask) == 0) { - g_set_error(error_r, oss_mixer_quark(), 0, - "mixer control \"%s\" not usable", - om->control); - oss_mixer_close(data); - return false; - } - } - return true; -} - -static int -oss_mixer_get_volume(struct mixer *mixer, GError **error_r) -{ - struct oss_mixer *om = (struct oss_mixer *)mixer; - int left, right, level; - int ret; - - assert(om->device_fd >= 0); - - ret = ioctl(om->device_fd, MIXER_READ(om->volume_control), &level); - if (ret < 0) { - g_set_error(error_r, oss_mixer_quark(), errno, - "failed to read OSS volume: %s", - g_strerror(errno)); - return false; - } - - left = level & 0xff; - right = (level & 0xff00) >> 8; - - if (left != right) { - g_warning("volume for left and right is not the same, \"%i\" and " - "\"%i\"\n", left, right); - } - - return left; -} - -static bool -oss_mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r) -{ - struct oss_mixer *om = (struct oss_mixer *)mixer; - int level; - int ret; - - assert(om->device_fd >= 0); - assert(volume <= 100); - - level = (volume << 8) + volume; - - ret = ioctl(om->device_fd, MIXER_WRITE(om->volume_control), &level); - if (ret < 0) { - g_set_error(error_r, oss_mixer_quark(), errno, - "failed to set OSS volume: %s", - g_strerror(errno)); - return false; - } - - return true; -} - -const struct mixer_plugin oss_mixer_plugin = { - .init = oss_mixer_init, - .finish = oss_mixer_finish, - .open = oss_mixer_open, - .close = oss_mixer_close, - .get_volume = oss_mixer_get_volume, - .set_volume = oss_mixer_set_volume, - .global = true, -}; |