sound/hda/hdac_sysfs.c

24 	struct hdac_device *codec = dev_to_hdac_dev(dev);	\
25 	return sysfs_emit(buf, "0x%x\n", codec->type);		\
34 	struct hdac_device *codec = dev_to_hdac_dev(dev);	\
36 			  codec->type ? codec->type : "");	\
89 	ssize_t (*show)(struct hdac_device *codec, hda_nid_t nid,
91 	ssize_t (*store)(struct hdac_device *codec, hda_nid_t nid,
114 	struct hdac_device *codec;
119 	nid = get_codec_nid(kobj, &codec);
122 	return wid_attr->show(codec, nid, wid_attr, buf);
130 	struct hdac_device *codec;
135 	nid = get_codec_nid(kobj, &codec);
138 	return wid_attr->store(codec, nid, wid_attr, buf, count);
161 static ssize_t caps_show(struct hdac_device *codec, hda_nid_t nid,
164 	return sysfs_emit(buf, "0x%08x\n", get_wcaps(codec, nid));
167 static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid,
170 	if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
173 			  snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP));
176 static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid,
181 	if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
183 	if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
188 static bool has_pcm_cap(struct hdac_device *codec, hda_nid_t nid)
190 	if (nid == codec->afg || nid == codec->mfg)
192 	switch (get_wcaps_type(get_wcaps(codec, nid))) {
201 static ssize_t pcm_caps_show(struct hdac_device *codec, hda_nid_t nid,
204 	if (!has_pcm_cap(codec, nid))
207 			  snd_hdac_read_parm(codec, nid, AC_PAR_PCM));
210 static ssize_t pcm_formats_show(struct hdac_device *codec, hda_nid_t nid,
213 	if (!has_pcm_cap(codec, nid))
216 			  snd_hdac_read_parm(codec, nid, AC_PAR_STREAM));
219 static ssize_t amp_in_caps_show(struct hdac_device *codec, hda_nid_t nid,
222 	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_IN_AMP))
225 			  snd_hdac_read_parm(codec, nid, AC_PAR_AMP_IN_CAP));
228 static ssize_t amp_out_caps_show(struct hdac_device *codec, hda_nid_t nid,
231 	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_OUT_AMP))
234 			  snd_hdac_read_parm(codec, nid, AC_PAR_AMP_OUT_CAP));
237 static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid,
240 	if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_POWER))
243 			  snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE));
246 static ssize_t gpio_caps_show(struct hdac_device *codec, hda_nid_t nid,
250 			  snd_hdac_read_parm(codec, nid, AC_PAR_GPIO_CAP));
253 static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid,
260 	nconns = snd_hdac_get_connections(codec, nid, list, ARRAY_SIZE(list));
320 static void widget_tree_free(struct hdac_device *codec)
322 	struct hdac_widget_tree *tree = codec->widgets;
335 	codec->widgets = NULL;
363 static int widget_tree_create(struct hdac_device *codec)
369 	tree = codec->widgets = kzalloc(sizeof(*tree), GFP_KERNEL);
373 	tree->root = kobject_create_and_add("widgets", &codec->dev.kobj);
377 	tree->nodes = kcalloc(codec->num_nodes + 1, sizeof(*tree->nodes),
382 	for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) {
389 	if (codec->afg) {
390 		err = add_widget_node(tree->root, codec->afg,
400 /* call with codec->widget_lock held */
401 int hda_widget_sysfs_init(struct hdac_device *codec)
405 	if (codec->widgets)
408 	err = widget_tree_create(codec);
410 		widget_tree_free(codec);
417 /* call with codec->widget_lock held */
418 void hda_widget_sysfs_exit(struct hdac_device *codec)
420 	widget_tree_free(codec);
423 /* call with codec->widget_lock held */
424 int hda_widget_sysfs_reinit(struct hdac_device *codec,
432 	if (!codec->widgets)
435 	tree = kmemdup(codec->widgets, sizeof(*tree), GFP_KERNEL);
446 	for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) {
448 			free_widget_node(codec->widgets->nodes[i],
454 		if (nid < codec->start_nid || nid >= codec->end_nid)
459 				codec->widgets->nodes[nid - codec->start_nid];
463 	kfree(codec->widgets->nodes);
464 	kfree(codec->widgets);
465 	codec->widgets = tree;