43 static void free_substream(struct snd_usb_substream *subs)  in free_substream()  argument
47 	if (!subs->num_formats)  in free_substream()
49 	list_for_each_entry_safe(fp, n, &subs->fmt_list, list) {  in free_substream()
54 	kfree(subs->rate_list.list);  in free_substream()
86 	struct snd_usb_substream *subs = &as->substream[stream];  in snd_usb_init_substream()  local
88 	INIT_LIST_HEAD(&subs->fmt_list);  in snd_usb_init_substream()
89 	spin_lock_init(&subs->lock);  in snd_usb_init_substream()
91 	subs->stream = as;  in snd_usb_init_substream()
92 	subs->direction = stream;  in snd_usb_init_substream()
93 	subs->dev = as->chip->dev;  in snd_usb_init_substream()
94 	subs->txfr_quirk = as->chip->txfr_quirk;  in snd_usb_init_substream()
95 	subs->speed = snd_usb_get_speed(subs->dev);  in snd_usb_init_substream()
96 	subs->pkt_offset_adj = 0;  in snd_usb_init_substream()
100 	list_add_tail(&fp->list, &subs->fmt_list);  in snd_usb_init_substream()
101 	subs->formats |= fp->formats;  in snd_usb_init_substream()
102 	subs->num_formats++;  in snd_usb_init_substream()
103 	subs->fmt_type = fp->fmt_type;  in snd_usb_init_substream()
104 	subs->ep_num = fp->endpoint;  in snd_usb_init_substream()
105 	if (fp->channels > subs->channels_max)  in snd_usb_init_substream()
106 		subs->channels_max = fp->channels;  in snd_usb_init_substream()
114 	struct snd_usb_substream *subs = info->private_data;  in usb_chmap_ctl_info()  local
117 	uinfo->count = subs->channels_max;  in usb_chmap_ctl_info()
124 static bool have_dup_chmap(struct snd_usb_substream *subs,  in have_dup_chmap()  argument
129 	for (p = fp->list.prev; p != &subs->fmt_list; p = p->prev) {  in have_dup_chmap()
143 	struct snd_usb_substream *subs = info->private_data;  in usb_chmap_ctl_tlv()  local
154 	list_for_each_entry(fp, &subs->fmt_list, list) {  in usb_chmap_ctl_tlv()
159 		if (have_dup_chmap(subs, fp))  in usb_chmap_ctl_tlv()
186 	struct snd_usb_substream *subs = info->private_data;  in usb_chmap_ctl_get()  local
192 	if (subs->cur_audiofmt)  in usb_chmap_ctl_get()
193 		chmap = subs->cur_audiofmt->chmap;  in usb_chmap_ctl_get()
203 		     struct snd_usb_substream *subs)  in add_chmap()  argument
210 	list_for_each_entry(fp, &subs->fmt_list, list)  in add_chmap()
222 	chmap->private_data = subs;  in add_chmap()
325 	struct snd_usb_substream *subs;  in snd_usb_add_audio_stream()  local
332 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
333 		if (subs->ep_num == fp->endpoint) {  in snd_usb_add_audio_stream()
334 			list_add_tail(&fp->list, &subs->fmt_list);  in snd_usb_add_audio_stream()
335 			subs->num_formats++;  in snd_usb_add_audio_stream()
336 			subs->formats |= fp->formats;  in snd_usb_add_audio_stream()
344 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
345 		if (subs->ep_num)  in snd_usb_add_audio_stream()
351 		return add_chmap(as->pcm, stream, subs);  in snd_usb_add_audio_stream()