1#ifndef USBUSX2Y_H
2#define USBUSX2Y_H
3#include "../usbaudio.h"
4#include "usbus428ctldefs.h"
5
6#define NRURBS	        2
7
8
9#define URBS_AsyncSeq 10
10#define URB_DataLen_AsyncSeq 32
11struct snd_usX2Y_AsyncSeq {
12	struct urb	*urb[URBS_AsyncSeq];
13	char		*buffer;
14};
15
16struct snd_usX2Y_urbSeq {
17	int	submitted;
18	int	len;
19	struct urb	*urb[0];
20};
21
22#include "usx2yhwdeppcm.h"
23
24struct usX2Ydev {
25	struct snd_usb_audio 	chip;
26	int			stride;
27	struct urb		*In04urb;
28	void			*In04Buf;
29	char			In04Last[24];
30	unsigned		In04IntCalls;
31	struct snd_usX2Y_urbSeq	*US04;
32	wait_queue_head_t	In04WaitQueue;
33	struct snd_usX2Y_AsyncSeq	AS04;
34	unsigned int		rate,
35				format;
36	int			chip_status;
37	struct mutex		prepare_mutex;
38	struct us428ctls_sharedmem	*us428ctls_sharedmem;
39	int			wait_iso_frame;
40	wait_queue_head_t	us428ctls_wait_queue_head;
41	struct snd_usX2Y_hwdep_pcm_shm	*hwdep_pcm_shm;
42	struct snd_usX2Y_substream	*subs[4];
43	struct snd_usX2Y_substream	* volatile  prepare_subs;
44	wait_queue_head_t	prepare_wait_queue;
45};
46
47
48struct snd_usX2Y_substream {
49	struct usX2Ydev	*usX2Y;
50	struct snd_pcm_substream *pcm_substream;
51
52	int			endpoint;
53	unsigned int		maxpacksize;		/* max packet size in bytes */
54
55	atomic_t		state;
56#define state_STOPPED	0
57#define state_STARTING1 1
58#define state_STARTING2 2
59#define state_STARTING3 3
60#define state_PREPARED	4
61#define state_PRERUNNING  6
62#define state_RUNNING	8
63
64	int			hwptr;			/* free frame position in the buffer (only for playback) */
65	int			hwptr_done;		/* processed frame position in the buffer */
66	int			transfer_done;		/* processed frames since last period update */
67
68	struct urb		*urb[NRURBS];	/* data urb table */
69	struct urb		*completed_urb;
70	char			*tmpbuf;			/* temporary buffer for playback */
71};
72
73
74#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
75
76int usX2Y_audio_create(struct snd_card *card);
77
78int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
79int usX2Y_In04_init(struct usX2Ydev *usX2Y);
80
81#define NAME_ALLCAPS "US-X2Y"
82
83#endif
84