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 typedef struct {
12 struct urb* urb[URBS_AsyncSeq];
13 char* buffer;
14 } snd_usX2Y_AsyncSeq_t;
15
16 typedef struct {
17 int submitted;
18 int len;
19 struct urb* urb[0];
20 } snd_usX2Y_urbSeq_t;
21
22 typedef struct snd_usX2Y_substream snd_usX2Y_substream_t;
23 #include "usx2yhwdeppcm.h"
24
25 typedef struct {
26 snd_usb_audio_t chip;
27 int stride;
28 struct urb *In04urb;
29 void *In04Buf;
30 char In04Last[24];
31 unsigned In04IntCalls;
32 snd_usX2Y_urbSeq_t *US04;
33 wait_queue_head_t In04WaitQueue;
34 snd_usX2Y_AsyncSeq_t AS04;
35 unsigned int rate,
36 format;
37 int chip_status;
38 struct semaphore prepare_mutex;
39 us428ctls_sharedmem_t *us428ctls_sharedmem;
40 int wait_iso_frame;
41 wait_queue_head_t us428ctls_wait_queue_head;
42 snd_usX2Y_hwdep_pcm_shm_t *hwdep_pcm_shm;
43 snd_usX2Y_substream_t *subs[4];
44 snd_usX2Y_substream_t * volatile prepare_subs;
45 wait_queue_head_t prepare_wait_queue;
46 } usX2Ydev_t;
47
48
49 struct snd_usX2Y_substream {
50 usX2Ydev_t *usX2Y;
51 snd_pcm_substream_t *pcm_substream;
52
53 int endpoint;
54 unsigned int maxpacksize; /* max packet size in bytes */
55
56 atomic_t state;
57 #define state_STOPPED 0
58 #define state_STARTING1 1
59 #define state_STARTING2 2
60 #define state_STARTING3 3
61 #define state_PREPARED 4
62 #define state_PRERUNNING 6
63 #define state_RUNNING 8
64
65 int hwptr; /* free frame position in the buffer (only for playback) */
66 int hwptr_done; /* processed frame position in the buffer */
67 int transfer_done; /* processed frames since last period update */
68
69 struct urb *urb[NRURBS]; /* data urb table */
70 struct urb *completed_urb;
71 char *tmpbuf; /* temporary buffer for playback */
72 };
73
74
75 #define usX2Y(c) ((usX2Ydev_t*)(c)->private_data)
76
77 int usX2Y_audio_create(snd_card_t* card);
78
79 int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y);
80 int usX2Y_In04_init(usX2Ydev_t* usX2Y);
81
82 #define NAME_ALLCAPS "US-X2Y"
83
84 #endif
85
|
This page was automatically generated by the
LXR engine.
|