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
11 struct snd_usX2Y_AsyncSeq {
12 struct urb *urb[URBS_AsyncSeq];
13 char *buffer;
14 };
15
16 struct snd_usX2Y_urbSeq {
17 int submitted;
18 int len;
19 struct urb *urb[0];
20 };
21
22 #include "usx2yhwdeppcm.h"
23
24 struct 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
48 struct 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
76 int usX2Y_audio_create(struct snd_card *card);
77
78 int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
79 int usX2Y_In04_init(struct usX2Ydev *usX2Y);
80
81 #define NAME_ALLCAPS "US-X2Y"
82
83 #endif
84
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