1 files changed, 89 insertions, 0 deletions
diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h
new file mode 100644
index 000000000..e0f77172c
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef USBUSX2Y_H
+#define USBUSX2Y_H
+#include "../usbaudio.h"
+#include "../midi.h"
+#include "usbus428ctldefs.h" 
+
+#define NRURBS	        2	
+
+
+#define URBS_AsyncSeq 10
+#define URB_DataLen_AsyncSeq 32
+struct snd_usX2Y_AsyncSeq {
+	struct urb	*urb[URBS_AsyncSeq];
+	char		*buffer;
+};
+
+struct snd_usX2Y_urbSeq {
+	int	submitted;
+	int	len;
+	struct urb	*urb[0];
+};
+
+#include "usx2yhwdeppcm.h"
+
+struct usX2Ydev {
+	struct usb_device	*dev;
+	int			card_index;
+	int			stride;
+	struct urb		*In04urb;
+	void			*In04Buf;
+	char			In04Last[24];
+	unsigned		In04IntCalls;
+	struct snd_usX2Y_urbSeq	*US04;
+	wait_queue_head_t	In04WaitQueue;
+	struct snd_usX2Y_AsyncSeq	AS04;
+	unsigned int		rate,
+				format;
+	int			chip_status;
+	struct mutex		pcm_mutex;
+	struct us428ctls_sharedmem	*us428ctls_sharedmem;
+	int			wait_iso_frame;
+	wait_queue_head_t	us428ctls_wait_queue_head;
+	struct snd_usX2Y_hwdep_pcm_shm	*hwdep_pcm_shm;
+	struct snd_usX2Y_substream	*subs[4];
+	struct snd_usX2Y_substream	* volatile  prepare_subs;
+	wait_queue_head_t	prepare_wait_queue;
+	struct list_head	midi_list;
+	struct list_head	pcm_list;
+	int			pcm_devs;
+};
+
+
+struct snd_usX2Y_substream {
+	struct usX2Ydev	*usX2Y;
+	struct snd_pcm_substream *pcm_substream;
+
+	int			endpoint;		
+	unsigned int		maxpacksize;		/* max packet size in bytes */
+
+	atomic_t		state;
+#define state_STOPPED	0
+#define state_STARTING1 1
+#define state_STARTING2 2
+#define state_STARTING3 3
+#define state_PREPARED	4
+#define state_PRERUNNING  6
+#define state_RUNNING	8
+
+	int			hwptr;			/* free frame position in the buffer (only for playback) */
+	int			hwptr_done;		/* processed frame position in the buffer */
+	int			transfer_done;		/* processed frames since last period update */
+
+	struct urb		*urb[NRURBS];	/* data urb table */
+	struct urb		*completed_urb;
+	char			*tmpbuf;			/* temporary buffer for playback */
+};
+
+
+#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
+
+int usX2Y_audio_create(struct snd_card *card);
+
+int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
+int usX2Y_In04_init(struct usX2Ydev *usX2Y);
+
+#define NAME_ALLCAPS "US-X2Y"
+
+#endif