git.oblomov.eu Git - linux-2.6/blob - 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
  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