31 static void audioformat_free(struct audioformat *fp)  in audioformat_free()  argument
33 	list_del(&fp->list); /* unlink for avoiding double-free */  in audioformat_free()
34 	kfree(fp->rate_table);  in audioformat_free()
35 	kfree(fp->chmap);  in audioformat_free()
36 	kfree(fp);  in audioformat_free()
44 	struct audioformat *fp, *n;  in free_substream()  local
48 	list_for_each_entry_safe(fp, n, &subs->fmt_list, list)  in free_substream()
49 		audioformat_free(fp);  in free_substream()
81 				   struct audioformat *fp,  in snd_usb_init_substream()  argument
100 	list_add_tail(&fp->list, &subs->fmt_list);  in snd_usb_init_substream()
101 	subs->formats |= fp->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()
134 			   struct audioformat *fp)  in have_dup_chmap()  argument
136 	struct audioformat *prev = fp;  in have_dup_chmap()
140 		    !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))  in have_dup_chmap()
151 	struct audioformat *fp;  in usb_chmap_ctl_tlv()  local
161 	list_for_each_entry(fp, &subs->fmt_list, list) {  in usb_chmap_ctl_tlv()
164 		if (!fp->chmap)  in usb_chmap_ctl_tlv()
166 		if (have_dup_chmap(subs, fp))  in usb_chmap_ctl_tlv()
169 		ch_bytes = fp->chmap->channels * 4;  in usb_chmap_ctl_tlv()
176 		for (i = 0; i < fp->chmap->channels; i++, dst++) {  in usb_chmap_ctl_tlv()
177 			if (put_user(fp->chmap->map[i], dst))  in usb_chmap_ctl_tlv()
212 	struct audioformat *fp;  in add_chmap()  local
217 	list_for_each_entry(fp, &subs->fmt_list, list)  in add_chmap()
218 		if (fp->chmap)  in add_chmap()
492  * if not, create a new pcm stream. note, fp is added to the substream
494  * fp or do remove it from the substream fmt_list to avoid double-free.
498 				      struct audioformat *fp,  in __snd_usb_add_audio_stream()  argument
508 		if (as->fmt_type != fp->fmt_type)  in __snd_usb_add_audio_stream()
511 		if (subs->ep_num == fp->endpoint) {  in __snd_usb_add_audio_stream()
512 			list_add_tail(&fp->list, &subs->fmt_list);  in __snd_usb_add_audio_stream()
514 			subs->formats |= fp->formats;  in __snd_usb_add_audio_stream()
524 		if (as->fmt_type != fp->fmt_type)  in __snd_usb_add_audio_stream()
532 		snd_usb_init_substream(as, stream, fp, pd);  in __snd_usb_add_audio_stream()
542 	as->fmt_type = fp->fmt_type;  in __snd_usb_add_audio_stream()
561 	snd_usb_init_substream(as, stream, fp, pd);  in __snd_usb_add_audio_stream()
581 			     struct audioformat *fp)  in snd_usb_add_audio_stream()  argument
583 	return __snd_usb_add_audio_stream(chip, stream, fp, NULL);  in snd_usb_add_audio_stream()
588 				       struct audioformat *fp,  in snd_usb_add_audio_stream_v3()  argument
591 	return __snd_usb_add_audio_stream(chip, stream, fp, pd);  in snd_usb_add_audio_stream_v3()
702 	struct audioformat *fp;  in audio_format_alloc_init()  local
704 	fp = kzalloc_obj(*fp);  in audio_format_alloc_init()
705 	if (!fp)  in audio_format_alloc_init()
708 	fp->iface = iface_no;  in audio_format_alloc_init()
709 	fp->altsetting = altno;  in audio_format_alloc_init()
710 	fp->altset_idx = altset_idx;  in audio_format_alloc_init()
711 	fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;  in audio_format_alloc_init()
712 	fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;  in audio_format_alloc_init()
713 	fp->datainterval = snd_usb_parse_datainterval(chip, alts);  in audio_format_alloc_init()
714 	fp->protocol = protocol;  in audio_format_alloc_init()
715 	fp->maxpacksize = usb_endpoint_max_periodic_payload(chip->dev, ep);  in audio_format_alloc_init()
716 	fp->channels = num_channels;  in audio_format_alloc_init()
717 	fp->clock = clock;  in audio_format_alloc_init()
718 	INIT_LIST_HEAD(&fp->list);  in audio_format_alloc_init()
720 	return fp;  in audio_format_alloc_init()
733 	struct audioformat *fp;  in snd_usb_get_audioformat_uac12()  local
852 	fp = audio_format_alloc_init(chip, alts, protocol, iface_no,  in snd_usb_get_audioformat_uac12()
854 	if (!fp)  in snd_usb_get_audioformat_uac12()
857 	fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol,  in snd_usb_get_audioformat_uac12()
861 	snd_usb_audioformat_attributes_quirk(chip, fp, stream);  in snd_usb_get_audioformat_uac12()
864 	if (snd_usb_parse_audio_format(chip, fp, format,  in snd_usb_get_audioformat_uac12()
866 		audioformat_free(fp);  in snd_usb_get_audioformat_uac12()
871 	if (fp->channels != num_channels)  in snd_usb_get_audioformat_uac12()
874 	fp->chmap = convert_chmap(fp->channels, chconfig, protocol);  in snd_usb_get_audioformat_uac12()
876 	return fp;  in snd_usb_get_audioformat_uac12()
898 	struct audioformat *fp;  in snd_usb_get_audioformat_uac3()  local
1069 	fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no,  in snd_usb_get_audioformat_uac3()
1071 	if (!fp) {  in snd_usb_get_audioformat_uac3()
1076 	fp->chmap = chmap;  in snd_usb_get_audioformat_uac3()
1079 		fp->attributes = 0; /* No attributes */  in snd_usb_get_audioformat_uac3()
1081 		fp->fmt_type = UAC_FORMAT_TYPE_I;  in snd_usb_get_audioformat_uac3()
1082 		fp->formats = badd_formats;  in snd_usb_get_audioformat_uac3()
1084 		fp->nr_rates = 0;	/* SNDRV_PCM_RATE_CONTINUOUS */  in snd_usb_get_audioformat_uac3()
1085 		fp->rate_min = UAC3_BADD_SAMPLING_RATE;  in snd_usb_get_audioformat_uac3()
1086 		fp->rate_max = UAC3_BADD_SAMPLING_RATE;  in snd_usb_get_audioformat_uac3()
1087 		fp->rates = SNDRV_PCM_RATE_CONTINUOUS;  in snd_usb_get_audioformat_uac3()
1091 			audioformat_free(fp);  in snd_usb_get_audioformat_uac3()
1101 		fp->attributes = parse_uac_endpoint_attributes(chip, alts,  in snd_usb_get_audioformat_uac3()
1109 		if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) {  in snd_usb_get_audioformat_uac3()
1111 			audioformat_free(fp);  in snd_usb_get_audioformat_uac3()
1119 	return fp;  in snd_usb_get_audioformat_uac3()
1131 	struct audioformat *fp = NULL;  in __snd_usb_parse_audio_interface()  local
1202 			    fp && fp->altsetting == 1 && fp->channels == 1 &&  in __snd_usb_parse_audio_interface()
1203 			    fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&  in __snd_usb_parse_audio_interface()
1206 							fp->maxpacksize * 2)  in __snd_usb_parse_audio_interface()
1209 			fp = snd_usb_get_audioformat_uac12(chip, alts, protocol,  in __snd_usb_parse_audio_interface()
1215 			fp = snd_usb_get_audioformat_uac3(chip, alts, &pd,  in __snd_usb_parse_audio_interface()
1220 		if (!fp)  in __snd_usb_parse_audio_interface()
1222 		else if (IS_ERR(fp))  in __snd_usb_parse_audio_interface()
1223 			return PTR_ERR(fp);  in __snd_usb_parse_audio_interface()
1225 		if (fp->fmt_type != UAC_FORMAT_TYPE_I)  in __snd_usb_parse_audio_interface()
1227 		if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) {  in __snd_usb_parse_audio_interface()
1228 			audioformat_free(fp);  in __snd_usb_parse_audio_interface()
1230 			fp = NULL;  in __snd_usb_parse_audio_interface()
1235 		snd_usb_audioformat_set_sync_ep(chip, fp);  in __snd_usb_parse_audio_interface()
1237 		dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);  in __snd_usb_parse_audio_interface()
1239 			err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd);  in __snd_usb_parse_audio_interface()
1241 			err = snd_usb_add_audio_stream(chip, stream, fp);  in __snd_usb_parse_audio_interface()
1244 			audioformat_free(fp);  in __snd_usb_parse_audio_interface()
1250 		err = snd_usb_add_endpoint(chip, fp->endpoint,  in __snd_usb_parse_audio_interface()
1255 		if (fp->sync_ep) {  in __snd_usb_parse_audio_interface()
1256 			err = snd_usb_add_endpoint(chip, fp->sync_ep,  in __snd_usb_parse_audio_interface()
1257 						   fp->implicit_fb ?  in __snd_usb_parse_audio_interface()
1276 		snd_usb_init_pitch(chip, fp);  in __snd_usb_parse_audio_interface()
1277 		snd_usb_init_sample_rate(chip, fp, fp->rate_max);  in __snd_usb_parse_audio_interface()