79 static void snd_usb_init_substream(struct snd_usb_stream *as,  in snd_usb_init_substream()  argument
84 	struct snd_usb_substream *subs = &as->substream[stream];  in snd_usb_init_substream()
89 	subs->stream = as;  in snd_usb_init_substream()
91 	subs->dev = as->chip->dev;  in snd_usb_init_substream()
92 	subs->txfr_quirk = !!(as->chip->quirk_flags & QUIRK_FLAG_ALIGN_TRANSFER);  in snd_usb_init_substream()
93 	subs->tx_length_quirk = !!(as->chip->quirk_flags & QUIRK_FLAG_TX_LENGTH);  in snd_usb_init_substream()
98 	snd_usb_set_pcm_ops(as->pcm, stream);  in snd_usb_init_substream()
485 	struct snd_usb_stream *as;  in __snd_usb_add_audio_stream()  local
490 	list_for_each_entry(as, &chip->pcm_list, list) {  in __snd_usb_add_audio_stream()
491 		if (as->fmt_type != fp->fmt_type)  in __snd_usb_add_audio_stream()
493 		subs = &as->substream[stream];  in __snd_usb_add_audio_stream()
506 	list_for_each_entry(as, &chip->pcm_list, list) {  in __snd_usb_add_audio_stream()
507 		if (as->fmt_type != fp->fmt_type)  in __snd_usb_add_audio_stream()
509 		subs = &as->substream[stream];  in __snd_usb_add_audio_stream()
512 		err = snd_pcm_new_stream(as->pcm, stream, 1);  in __snd_usb_add_audio_stream()
515 		snd_usb_init_substream(as, stream, fp, pd);  in __snd_usb_add_audio_stream()
516 		return add_chmap(as->pcm, stream, subs);  in __snd_usb_add_audio_stream()
520 	as = kzalloc(sizeof(*as), GFP_KERNEL);  in __snd_usb_add_audio_stream()
521 	if (!as)  in __snd_usb_add_audio_stream()
523 	as->pcm_index = chip->pcm_devs;  in __snd_usb_add_audio_stream()
524 	as->chip = chip;  in __snd_usb_add_audio_stream()
525 	as->fmt_type = fp->fmt_type;  in __snd_usb_add_audio_stream()
531 		kfree(as);  in __snd_usb_add_audio_stream()
534 	as->pcm = pcm;  in __snd_usb_add_audio_stream()
535 	pcm->private_data = as;  in __snd_usb_add_audio_stream()
543 	snd_usb_init_substream(as, stream, fp, pd);  in __snd_usb_add_audio_stream()
550 		list_add(&as->list, &chip->pcm_list);  in __snd_usb_add_audio_stream()
552 		list_add_tail(&as->list, &chip->pcm_list);  in __snd_usb_add_audio_stream()
556 	snd_usb_proc_pcm_format_add(as);  in __snd_usb_add_audio_stream()
558 	return add_chmap(pcm, stream, &as->substream[stream]);  in __snd_usb_add_audio_stream()
722 		struct uac1_as_header_descriptor *as =  in snd_usb_get_audioformat_uac12()  local
727 		if (!as) {  in snd_usb_get_audioformat_uac12()
734 		if (as->bLength < sizeof(*as)) {  in snd_usb_get_audioformat_uac12()
741 		format = le16_to_cpu(as->wFormatTag); /* remember the format value */  in snd_usb_get_audioformat_uac12()
744 							       as->bTerminalLink,  in snd_usb_get_audioformat_uac12()
753 		struct uac2_as_header_descriptor *as =  in snd_usb_get_audioformat_uac12()  local
757 		if (!as) {  in snd_usb_get_audioformat_uac12()
764 		if (as->bLength < sizeof(*as)) {  in snd_usb_get_audioformat_uac12()
771 		num_channels = as->bNrChannels;  in snd_usb_get_audioformat_uac12()
772 		format = le32_to_cpu(as->bmFormats);  in snd_usb_get_audioformat_uac12()
773 		chconfig = le32_to_cpu(as->bmChannelConfig);  in snd_usb_get_audioformat_uac12()
780 								    as->bTerminalLink,  in snd_usb_get_audioformat_uac12()
790 								      as->bTerminalLink,  in snd_usb_get_audioformat_uac12()
799 			iface_no, altno, as->bTerminalLink);  in snd_usb_get_audioformat_uac12()
871 	struct uac3_as_header_descriptor *as = NULL;  in snd_usb_get_audioformat_uac3()  local
933 	as = snd_usb_find_csint_desc(alts->extra, alts->extralen,  in snd_usb_get_audioformat_uac3()
935 	if (!as) {  in snd_usb_get_audioformat_uac3()
942 	if (as->bLength < sizeof(*as)) {  in snd_usb_get_audioformat_uac3()
949 	cluster_id = le16_to_cpu(as->wClusterDescrID);  in snd_usb_get_audioformat_uac3()
1015 							    as->bTerminalLink,  in snd_usb_get_audioformat_uac3()
1023 							      as->bTerminalLink,  in snd_usb_get_audioformat_uac3()
1031 			iface_no, altno, as->bTerminalLink);  in snd_usb_get_audioformat_uac3()
1072 					       as->bTerminalLink);  in snd_usb_get_audioformat_uac3()
1075 		if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) {  in snd_usb_get_audioformat_uac3()