Merge branch 'ucm'

src/Makefile.am

@@ -38,6 +38,10 @@ if BUILD_SEQ
 SUBDIRS += seq
 libasound_la_LIBADD += seq/libseq.la
 endif
+if BUILD_UCM
+SUBDIRS += ucm
+libasound_la_LIBADD += ucm/libucm.la
+endif
 if BUILD_ALISP
 SUBDIRS += alisp
 libasound_la_LIBADD += alisp/libalisp.la

src/control/Makefile.am

@@ -1,7 +1,8 @@
 EXTRA_LTLIBRARIES = libcontrol.la
 
 libcontrol_la_SOURCES = cards.c tlv.c namehint.c hcontrol.c \
-                        control.c control_hw.c setup.c control_symbols.c
+                        control.c control_hw.c setup.c ctlparse.c \
+                        control_symbols.c
 if BUILD_CTL_PLUGIN_SHM
 libcontrol_la_SOURCES += control_shm.c
 endif

src/control/ctlparse.c

@@ -0,0 +1,351 @@
+/**
+ * \file control/control.c
+ * \brief CTL interface - parse ASCII identifiers and values
+ * \author Jaroslav Kysela <perex@perex.cz>
+ * \date 2010
+ */
+/*
+ *  Control Interface - ASCII parser
+ *  Copyright (c) 2010 by Jaroslav Kysela <perex@perex.cz>
+ *
+ *
+ *   This library 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 2.1 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 Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public
+ *   License along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+#include "control_local.h"
+
+/* Function to convert from percentage to volume. val = percentage */
+
+#define convert_prange1(val, min, max) \
+	ceil((val) * ((max) - (min)) * 0.01 + (min))
+
+#define check_range(val, min, max) \
+	((val < min) ? (min) : ((val > max) ? (max) : (val)))
+
+static long get_integer(const char **ptr, long min, long max)
+{
+	long val = min;
+	char *p = (char *)*ptr, *s;
+
+	if (*p == ':')
+		p++;
+	if (*p == '\0' || (!isdigit(*p) && *p != '-'))
+		goto out;
+
+	s = p;
+	val = strtol(s, &p, 10);
+	if (*p == '.') {
+		p++;
+		strtol(p, &p, 10);
+	}
+	if (*p == '%') {
+		val = (long)convert_prange1(strtod(s, NULL), min, max);
+		p++;
+	}
+	val = check_range(val, min, max);
+	if (*p == ',')
+		p++;
+ out:
+	*ptr = p;
+	return val;
+}
+
+static long long get_integer64(const char **ptr, long long min, long long max)
+{
+	long long val = min;
+	char *p = (char *)*ptr, *s;
+
+	if (*p == ':')
+		p++;
+	if (*p == '\0' || (!isdigit(*p) && *p != '-'))
+		goto out;
+
+	s = p;
+	val = strtol(s, &p, 10);
+	if (*p == '.') {
+		p++;
+		strtol(p, &p, 10);
+	}
+	if (*p == '%') {
+		val = (long long)convert_prange1(strtod(s, NULL), min, max);
+		p++;
+	}
+	val = check_range(val, min, max);
+	if (*p == ',')
+		p++;
+ out:
+	*ptr = p;
+	return val;
+}
+
+/**
+ * \brief return ASCII CTL element identifier name
+ * \param id CTL identifier
+ * \return ascii identifier of CTL element
+ *
+ * The string is allocated using strdup().
+ */
+char *snd_ctl_ascii_elem_id_get(snd_ctl_elem_id_t *id)
+{
+	unsigned int index, device, subdevice;
+	char buf[256], buf1[32];
+
+	snprintf(buf, sizeof(buf), "numid=%u,iface=%s,name='%s'",
+				snd_ctl_elem_id_get_numid(id),
+				snd_ctl_elem_iface_name(
+					snd_ctl_elem_id_get_interface(id)),
+				snd_ctl_elem_id_get_name(id));
+	buf[sizeof(buf)-1] = '\0';
+	index = snd_ctl_elem_id_get_index(id);
+	device = snd_ctl_elem_id_get_device(id);
+	subdevice = snd_ctl_elem_id_get_subdevice(id);
+	if (index) {
+		snprintf(buf1, sizeof(buf1), ",index=%i", index);
+		if (strlen(buf) + strlen(buf1) < sizeof(buf))
+			strcat(buf, buf1);
+	}
+	if (device) {
+		snprintf(buf1, sizeof(buf1), ",device=%i", device);
+		if (strlen(buf) + strlen(buf1) < sizeof(buf))
+			strcat(buf, buf1);
+	}
+	if (subdevice) {
+		snprintf(buf1, sizeof(buf1), ",subdevice=%i", subdevice);
+		if (strlen(buf) + strlen(buf1) < sizeof(buf))
+			strcat(buf, buf1);
+	}
+	return strdup(buf);
+}
+
+/**
+ * \brief parse ASCII string as CTL element identifier
+ * \param dst destination CTL identifier
+ * \param str source ASCII string
+ * \return zero on success, otherwise a negative error code
+ */
+int snd_ctl_ascii_elem_id_parse(snd_ctl_elem_id_t *dst, const char *str)
+{
+	int c, size, numid;
+	char *ptr;
+
+	while (*str == ' ' || *str == '\t')
+		str++;
+	if (!(*str))
+		return -EINVAL;
+	snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_MIXER);	/* default */
+	while (*str) {
+		if (!strncasecmp(str, "numid=", 6)) {
+			str += 6;
+			numid = atoi(str);
+			if (numid <= 0) {
+				fprintf(stderr, "amixer: Invalid numid %d\n", numid);
+				return -EINVAL;
+			}
+			snd_ctl_elem_id_set_numid(dst, atoi(str));
+			while (isdigit(*str))
+				str++;
+		} else if (!strncasecmp(str, "iface=", 6)) {
+			str += 6;
+			if (!strncasecmp(str, "card", 4)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_CARD);
+				str += 4;
+			} else if (!strncasecmp(str, "mixer", 5)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_MIXER);
+				str += 5;
+			} else if (!strncasecmp(str, "pcm", 3)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_PCM);
+				str += 3;
+			} else if (!strncasecmp(str, "rawmidi", 7)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_RAWMIDI);
+				str += 7;
+			} else if (!strncasecmp(str, "timer", 5)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_TIMER);
+				str += 5;
+			} else if (!strncasecmp(str, "sequencer", 9)) {
+				snd_ctl_elem_id_set_interface(dst, SND_CTL_ELEM_IFACE_SEQUENCER);
+				str += 9;
+			} else {
+				return -EINVAL;
+			}
+		} else if (!strncasecmp(str, "name=", 5)) {
+			char buf[64];
+			str += 5;
+			ptr = buf;
+			size = 0;
+			if (*str == '\'' || *str == '\"') {
+				c = *str++;
+				while (*str && *str != c) {
+					if (size < (int)sizeof(buf)) {
+						*ptr++ = *str;
+						size++;
+					}
+					str++;
+				}
+				if (*str == c)
+					str++;
+			} else {
+				while (*str && *str != ',') {
+					if (size < (int)sizeof(buf)) {
+						*ptr++ = *str;
+						size++;
+					}
+					str++;
+				}
+			}
+			*ptr = '\0';
+			snd_ctl_elem_id_set_name(dst, buf);
+		} else if (!strncasecmp(str, "index=", 6)) {
+			str += 6;
+			snd_ctl_elem_id_set_index(dst, atoi(str));
+			while (isdigit(*str))
+				str++;
+		} else if (!strncasecmp(str, "device=", 7)) {
+			str += 7;
+			snd_ctl_elem_id_set_device(dst, atoi(str));
+			while (isdigit(*str))
+				str++;
+		} else if (!strncasecmp(str, "subdevice=", 10)) {
+			str += 10;
+			snd_ctl_elem_id_set_subdevice(dst, atoi(str));
+			while (isdigit(*str))
+				str++;
+		}
+		if (*str == ',') {
+			str++;
+		} else {
+			if (*str)
+				return -EINVAL;
+		}
+	}			
+	return 0;
+}
+
+static int get_ctl_enum_item_index(snd_ctl_t *handle,
+				   snd_ctl_elem_info_t *info,
+				   const char **ptrp)
+{ 
+	char *ptr = (char *)*ptrp;
+	int items, i, len;
+	const char *name;
+  
+	items = snd_ctl_elem_info_get_items(info);
+	if (items <= 0)
+		return -1;
+
+	for (i = 0; i < items; i++) {
+		snd_ctl_elem_info_set_item(info, i);
+		if (snd_ctl_elem_info(handle, info) < 0)
+			return -1;
+		name = snd_ctl_elem_info_get_item_name(info);
+		len = strlen(name);
+		if (! strncmp(name, ptr, len)) {
+			if (! ptr[len] || ptr[len] == ',' || ptr[len] == '\n') {
+				ptr += len;
+				*ptrp = ptr;
+				return i;
+			}
+		}
+	}
+	return -1;
+}
+
+/**
+ * \brief parse ASCII string as CTL element value
+ * \param dst destination CTL element value
+ * \param info CTL element info structure
+ * \param value source ASCII string
+ * \return zero on success, otherwise a negative error code
+ */
+int snd_ctl_ascii_value_parse(snd_ctl_t *handle,
+			      snd_ctl_elem_value_t *dst,
+			      snd_ctl_elem_info_t *info,
+			      const char *value)
+{
+	const char *ptr = value;
+	snd_ctl_elem_id_t *myid;
+	snd_ctl_elem_type_t type;
+	unsigned int idx, count;
+	long tmp;
+	long long tmp64;
+
+	snd_ctl_elem_id_alloca(&myid);
+	snd_ctl_elem_info_get_id(info, myid);
+	type = snd_ctl_elem_info_get_type(info);
+	count = snd_ctl_elem_info_get_count(info);
+	snd_ctl_elem_value_set_id(dst, myid);
+	
+	for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) {
+		switch (type) {
+		case SND_CTL_ELEM_TYPE_BOOLEAN:
+			tmp = 0;
+			if (!strncasecmp(ptr, "on", 2) ||
+			    !strncasecmp(ptr, "up", 2)) {
+				tmp = 1;
+				ptr += 2;
+			} else if (!strncasecmp(ptr, "yes", 3)) {
+				tmp = 1;
+				ptr += 3;
+			} else if (!strncasecmp(ptr, "toggle", 6)) {
+				tmp = snd_ctl_elem_value_get_boolean(dst, idx);
+				tmp = tmp > 0 ? 0 : 1;
+				ptr += 6;
+			} else if (isdigit(*ptr)) {
+				tmp = atoi(ptr) > 0 ? 1 : 0;
+				while (isdigit(*ptr))
+					ptr++;
+			} else {
+				while (*ptr && *ptr != ',')
+					ptr++;
+			}
+			snd_ctl_elem_value_set_boolean(dst, idx, tmp);
+			break;
+		case SND_CTL_ELEM_TYPE_INTEGER:
+			tmp = get_integer(&ptr,
+					  snd_ctl_elem_info_get_min(info),
+					  snd_ctl_elem_info_get_max(info));
+			snd_ctl_elem_value_set_integer(dst, idx, tmp);
+			break;
+		case SND_CTL_ELEM_TYPE_INTEGER64:
+			tmp64 = get_integer64(&ptr,
+					  snd_ctl_elem_info_get_min64(info),
+					  snd_ctl_elem_info_get_max64(info));
+			snd_ctl_elem_value_set_integer64(dst, idx, tmp64);
+			break;
+		case SND_CTL_ELEM_TYPE_ENUMERATED:
+			tmp = get_ctl_enum_item_index(handle, info, &ptr);
+			if (tmp < 0)
+				tmp = get_integer(&ptr, 0,
+					snd_ctl_elem_info_get_items(info) - 1);
+			snd_ctl_elem_value_set_enumerated(dst, idx, tmp);
+			break;
+		case SND_CTL_ELEM_TYPE_BYTES:
+			tmp = get_integer(&ptr, 0, 255);
+			snd_ctl_elem_value_set_byte(dst, idx, tmp);
+			break;
+		default:
+			break;
+		}
+		if (!strchr(value, ','))
+			ptr = value;
+		else if (*ptr == ',')
+			ptr++;
+	}
+	return 0;
+}

src/ucm/Makefile.am

@@ -0,0 +1,10 @@
+EXTRA_LTLIBRARIES = libucm.la
+
+libucm_la_SOURCES = utils.c parser.c main.c
+
+noinst_HEADERS = ucm_local.h
+
+all: libucm.la
+
+
+INCLUDES=-I$(top_srcdir)/include

src/ucm/ucm_local.h

@@ -0,0 +1,208 @@
+/*
+ *  This library 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.
+ *
+ *  This library 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
+ *  Lesser 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *  Support for the verb/device/modifier core logic and API,
+ *  command line tool and file parser was kindly sponsored by
+ *  Texas Instruments Inc.
+ *  Support for multiple active modifiers and devices,
+ *  transition sequences, multiple client access and user defined use
+ *  cases was kindly sponsored by Wolfson Microelectronics PLC.
+ *
+ *  Copyright (C) 2008-2010 SlimLogic Ltd
+ *  Copyright (C) 2010 Wolfson Microelectronics PLC
+ *  Copyright (C) 2010 Texas Instruments Inc.
+ *  Copyright (C) 2010 Red Hat Inc.
+ *  Authors: Liam Girdwood <lrg@slimlogic.co.uk>
+ *	         Stefan Schmidt <stefan@slimlogic.co.uk>
+ *	         Justin Xu <justinx@slimlogic.co.uk>
+ *               Jaroslav Kysela <perex@perex.cz>
+ */
+
+
+
+#if 0
+#define UC_MGR_DEBUG
+#endif
+
+#include "local.h"
+#include "use-case.h"
+
+#define MAX_FILE		256
+#define ALSA_USE_CASE_DIR	ALSA_CONFIG_DIR "/ucm"
+
+#define SEQUENCE_ELEMENT_TYPE_CDEV	1
+#define SEQUENCE_ELEMENT_TYPE_CSET	2
+#define SEQUENCE_ELEMENT_TYPE_SLEEP	3
+#define SEQUENCE_ELEMENT_TYPE_EXEC	4
+
+struct ucm_value {
+        struct list_head list;
+        char *name;
+        char *data;
+};
+
+struct sequence_element {
+	struct list_head list;
+	unsigned int type;
+	union {
+		long sleep; /* Sleep time in msecs if sleep element, else 0 */
+		char *cdev;
+		char *cset;
+		char *exec;
+	} data;
+};
+
+/*
+ * Transition sequences. i.e. transition between one verb, device, mod to another
+ */
+struct transition_sequence {
+	struct list_head list;
+	char *name;
+	struct list_head transition_list;
+};
+
+/*
+ * Modifier Supported Devices.
+ */
+struct dev_list {
+	struct list_head list;
+	char *name;
+};
+
+
+/*
+ * Describes a Use Case Modifier and it's enable and disable sequences.
+ * A use case verb can have N modifiers.
+ */
+struct use_case_modifier {
+	struct list_head list;
+	struct list_head active_list;
+
+	char *name;
+	char *comment;
+
+	/* modifier enable and disable sequences */
+	struct list_head enable_list;
+	struct list_head disable_list;
+
+	/* modifier transition list */
+	struct list_head transition_list;
+
+	/* list of supported devices per modifier */
+	struct list_head dev_list;
+
+	/* values */
+	struct list_head value_list;
+};
+
+/*
+ * Describes a Use Case Device and it's enable and disable sequences.
+ * A use case verb can have N devices.
+ */
+struct use_case_device {
+	struct list_head list;
+	struct list_head active_list;
+
+	char *name;
+	char *comment;
+
+	/* device enable and disable sequences */
+	struct list_head enable_list;
+	struct list_head disable_list;
+
+	/* device transition list */
+	struct list_head transition_list;
+
+	/* value list */
+	struct list_head value_list;
+};
+
+/*
+ * Describes a Use Case Verb and it's enable and disable sequences.
+ * A use case verb can have N devices and N modifiers.
+ */
+struct use_case_verb {
+	struct list_head list;
+
+	unsigned int active: 1;
+
+	char *name;
+	char *comment;
+
+	/* verb enable and disable sequences */
+	struct list_head enable_list;
+	struct list_head disable_list;
+
+	/* verb transition list */
+	struct list_head transition_list;
+
+	/* hardware devices that can be used with this use case */
+	struct list_head device_list;
+
+	/* modifiers that can be used with this use case */
+	struct list_head modifier_list;
+
+	/* value list */
+	struct list_head value_list;
+};
+
+/*
+ *  Manages a sound card and all its use cases.
+ */
+struct snd_use_case_mgr {
+	char *card_name;
+	char *comment;
+
+	/* use case verb, devices and modifier configs parsed from files */
+	struct list_head verb_list;
+
+	/* default settings - sequence */
+	struct list_head default_list;
+
+	/* default settings - value list */
+	struct list_head value_list;
+
+	/* current status */
+	struct use_case_verb *active_verb;
+	struct list_head active_devices;
+	struct list_head active_modifiers;
+
+	/* locking */
+	pthread_mutex_t mutex;
+
+	/* change to list of ctl handles */
+	snd_ctl_t *ctl;
+	char *ctl_dev;
+};
+
+#define uc_error SNDERR
+
+#ifdef UC_MGR_DEBUG
+#define uc_dbg SNDERR
+#else
+#define uc_dbg(fmt, arg...)
+#endif
+
+void uc_mgr_error(const char *fmt, ...);
+void uc_mgr_stdout(const char *fmt, ...);
+
+int uc_mgr_config_load(const char *file, snd_config_t **cfg);
+int uc_mgr_import_master_config(snd_use_case_mgr_t *uc_mgr);
+int uc_mgr_scan_master_configs(const char **_list[]);
+
+void uc_mgr_free_sequence_element(struct sequence_element *seq);
+void uc_mgr_free_transition_element(struct transition_sequence *seq);
+void uc_mgr_free_verb(snd_use_case_mgr_t *uc_mgr);
+void uc_mgr_free(snd_use_case_mgr_t *uc_mgr);

src/ucm/utils.c

@@ -0,0 +1,236 @@
+/*
+ *  This library 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.
+ *
+ *  This library 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
+ *  Lesser 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *  Support for the verb/device/modifier core logic and API,
+ *  command line tool and file parser was kindly sponsored by
+ *  Texas Instruments Inc.
+ *  Support for multiple active modifiers and devices,
+ *  transition sequences, multiple client access and user defined use
+ *  cases was kindly sponsored by Wolfson Microelectronics PLC.
+ *
+ *  Copyright (C) 2008-2010 SlimLogic Ltd
+ *  Copyright (C) 2010 Wolfson Microelectronics PLC
+ *  Copyright (C) 2010 Texas Instruments Inc.
+ *  Copyright (C) 2010 Red Hat Inc.
+ *  Authors: Liam Girdwood <lrg@slimlogic.co.uk>
+ *	         Stefan Schmidt <stefan@slimlogic.co.uk>
+ *	         Justin Xu <justinx@slimlogic.co.uk>
+ *               Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include "ucm_local.h"
+
+void uc_mgr_error(const char *fmt,...)
+{
+	va_list va;
+	va_start(va, fmt);
+	fprintf(stderr, "ucm: ");
+	vfprintf(stderr, fmt, va);
+	va_end(va);
+}
+
+void uc_mgr_stdout(const char *fmt,...)
+{
+	va_list va;
+	va_start(va, fmt);
+	vfprintf(stdout, fmt, va);
+	va_end(va);
+}
+
+int uc_mgr_config_load(const char *file, snd_config_t **cfg)
+{
+	FILE *fp;
+	snd_input_t *in;
+	snd_config_t *top;
+	int err;
+
+	fp = fopen(file, "r");
+	if (fp == NULL) {
+		err = -errno;
+		goto __err;
+	}
+	err = snd_input_stdio_attach(&in, fp, 1);
+	if (err < 0) {
+	      __err:
+		uc_error("could not open configuration file %s", file);
+		return err;
+	}
+	err = snd_config_top(&top);
+	if (err < 0)
+		return err;
+	err = snd_config_load(top, in);
+	if (err < 0) {
+		uc_error("could not load configuration file %s", file);
+		snd_config_delete(top);
+		return err;
+	}
+	err = snd_input_close(in);
+	if (err < 0) {
+		snd_config_delete(top);
+		return err;
+	}
+	*cfg = top;
+	return 0;
+}
+
+void uc_mgr_free_value(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct ucm_value *val;
+	
+	list_for_each_safe(pos, npos, base) {
+		val = list_entry(pos, struct ucm_value, list);
+		free(val->name);
+		free(val->data);
+		list_del(&val->list);
+		free(val);
+	}
+}
+
+void uc_mgr_free_dev_list(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct dev_list *dlist;
+	
+	list_for_each_safe(pos, npos, base) {
+		dlist = list_entry(pos, struct dev_list, list);
+		free(dlist->name);
+		list_del(&dlist->list);
+		free(dlist);
+	}
+}
+
+void uc_mgr_free_sequence_element(struct sequence_element *seq)
+{
+	if (seq == NULL)
+		return;
+	switch (seq->type) {
+	case SEQUENCE_ELEMENT_TYPE_CSET:
+	case SEQUENCE_ELEMENT_TYPE_EXEC:
+		free(seq->data.exec);
+		break;
+	default:
+		break;
+	}
+	free(seq);
+}
+
+void uc_mgr_free_sequence(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct sequence_element *seq;
+	
+	list_for_each_safe(pos, npos, base) {
+		seq = list_entry(pos, struct sequence_element, list);
+		list_del(&seq->list);
+		uc_mgr_free_sequence_element(seq);
+	}
+}
+
+void uc_mgr_free_transition_element(struct transition_sequence *tseq)
+{
+	free(tseq->name);
+	uc_mgr_free_sequence(&tseq->transition_list);
+	free(tseq);
+}
+
+void uc_mgr_free_transition(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct transition_sequence *tseq;
+	
+	list_for_each_safe(pos, npos, base) {
+		tseq = list_entry(pos, struct transition_sequence, list);
+		list_del(&tseq->list);
+		uc_mgr_free_transition_element(tseq);
+	}
+}
+
+void uc_mgr_free_modifier(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct use_case_modifier *mod;
+	
+	list_for_each_safe(pos, npos, base) {
+		mod = list_entry(pos, struct use_case_modifier, list);
+		free(mod->name);
+		free(mod->comment);
+		uc_mgr_free_sequence(&mod->enable_list);
+		uc_mgr_free_sequence(&mod->disable_list);
+		uc_mgr_free_transition(&mod->transition_list);
+		uc_mgr_free_dev_list(&mod->dev_list);
+		uc_mgr_free_value(&mod->value_list);
+		list_del(&mod->list);
+		free(mod);
+	}
+}
+
+void uc_mgr_free_device(struct list_head *base)
+{
+	struct list_head *pos, *npos;
+	struct use_case_device *dev;
+	
+	list_for_each_safe(pos, npos, base) {
+		dev = list_entry(pos, struct use_case_device, list);
+		free(dev->name);
+		free(dev->comment);
+		uc_mgr_free_sequence(&dev->enable_list);
+		uc_mgr_free_sequence(&dev->disable_list);
+		uc_mgr_free_transition(&dev->transition_list);
+		uc_mgr_free_value(&dev->value_list);
+		list_del(&dev->list);
+		free(dev);
+	}
+}
+
+void uc_mgr_free_verb(snd_use_case_mgr_t *uc_mgr)
+{
+	struct list_head *pos, *npos;
+	struct use_case_verb *verb;
+
+	list_for_each_safe(pos, npos, &uc_mgr->verb_list) {
+		verb = list_entry(pos, struct use_case_verb, list);
+		free(verb->name);
+		free(verb->comment);
+		uc_mgr_free_sequence(&verb->enable_list);
+		uc_mgr_free_sequence(&verb->disable_list);
+		uc_mgr_free_transition(&verb->transition_list);
+		uc_mgr_free_value(&verb->value_list);
+		uc_mgr_free_device(&verb->device_list);
+		uc_mgr_free_modifier(&verb->modifier_list);
+		list_del(&verb->list);
+		free(verb);
+	}
+	uc_mgr_free_sequence(&uc_mgr->default_list);
+	uc_mgr_free_value(&uc_mgr->value_list);
+	free(uc_mgr->comment);
+	uc_mgr->comment = NULL;
+	uc_mgr->active_verb = NULL;
+	INIT_LIST_HEAD(&uc_mgr->active_devices);
+	INIT_LIST_HEAD(&uc_mgr->active_modifiers);
+	if (uc_mgr->ctl != NULL) {
+		snd_ctl_close(uc_mgr->ctl);
+		uc_mgr->ctl = NULL;
+	}
+	free(uc_mgr->ctl_dev);
+	uc_mgr->ctl_dev = NULL;
+}
+
+void uc_mgr_free(snd_use_case_mgr_t *uc_mgr)
+{
+	uc_mgr_free_verb(uc_mgr);
+	free(uc_mgr->card_name);
+	free(uc_mgr);
+}