LXR linux/sound/usb/usx2y/usbusx2y.h

   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