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 usb_device       *dev;
  26        int                     card_index;
  27        int                     stride;
  28        struct urb              *In04urb;
  29        void                    *In04Buf;
  30        char                    In04Last[24];
  31        unsigned                In04IntCalls;
  32        struct snd_usX2Y_urbSeq *US04;
  33        wait_queue_head_t       In04WaitQueue;
  34        struct snd_usX2Y_AsyncSeq       AS04;
  35        unsigned int            rate,
  36                                format;
  37        int                     chip_status;
  38        struct mutex            prepare_mutex;
  39        struct us428ctls_sharedmem      *us428ctls_sharedmem;
  40        int                     wait_iso_frame;
  41        wait_queue_head_t       us428ctls_wait_queue_head;
  42        struct snd_usX2Y_hwdep_pcm_shm  *hwdep_pcm_shm;
  43        struct snd_usX2Y_substream      *subs[4];
  44        struct snd_usX2Y_substream      * volatile  prepare_subs;
  45        wait_queue_head_t       prepare_wait_queue;
  46        struct list_head        midi_list;
  47        struct list_head        pcm_list;
  48        int                     pcm_devs;
  49};
  50
  51
  52struct snd_usX2Y_substream {
  53        struct usX2Ydev *usX2Y;
  54        struct snd_pcm_substream *pcm_substream;
  55
  56        int                     endpoint;               
  57        unsigned int            maxpacksize;            /* max packet size in bytes */
  58
  59        atomic_t                state;
  60#define state_STOPPED   0
  61#define state_STARTING1 1
  62#define state_STARTING2 2
  63#define state_STARTING3 3
  64#define state_PREPARED  4
  65#define state_PRERUNNING  6
  66#define state_RUNNING   8
  67
  68        int                     hwptr;                  /* free frame position in the buffer (only for playback) */
  69        int                     hwptr_done;             /* processed frame position in the buffer */
  70        int                     transfer_done;          /* processed frames since last period update */
  71
  72        struct urb              *urb[NRURBS];   /* data urb table */
  73        struct urb              *completed_urb;
  74        char                    *tmpbuf;                        /* temporary buffer for playback */
  75};
  76
  77
  78#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
  79
  80int usX2Y_audio_create(struct snd_card *card);
  81
  82int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
  83int usX2Y_In04_init(struct usX2Ydev *usX2Y);
  84
  85#define NAME_ALLCAPS "US-X2Y"
  86
  87#endif
  88