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

   1#ifndef USBUSX2Y_H
   2#define USBUSX2Y_H
   3#include "../usbaudio.h"
   4#include "../midi.h"
   5#include "usbus428ctldefs.h" 
   6
   7#define NRURBS          2       
   8
   9
  10#define URBS_AsyncSeq 10
  11#define URB_DataLen_AsyncSeq 32
  12struct snd_usX2Y_AsyncSeq {
  13        struct urb      *urb[URBS_AsyncSeq];
  14        char            *buffer;
  15};
  16
  17struct snd_usX2Y_urbSeq {
  18        int     submitted;
  19        int     len;
  20        struct urb      *urb[0];
  21};
  22
  23#include "usx2yhwdeppcm.h"
  24
  25struct usX2Ydev {
  26        struct usb_device       *dev;
  27        int                     card_index;
  28        int                     stride;
  29        struct urb              *In04urb;
  30        void                    *In04Buf;
  31        char                    In04Last[24];
  32        unsigned                In04IntCalls;
  33        struct snd_usX2Y_urbSeq *US04;
  34        wait_queue_head_t       In04WaitQueue;
  35        struct snd_usX2Y_AsyncSeq       AS04;
  36        unsigned int            rate,
  37                                format;
  38        int                     chip_status;
  39        struct mutex            prepare_mutex;
  40        struct us428ctls_sharedmem      *us428ctls_sharedmem;
  41        int                     wait_iso_frame;
  42        wait_queue_head_t       us428ctls_wait_queue_head;
  43        struct snd_usX2Y_hwdep_pcm_shm  *hwdep_pcm_shm;
  44        struct snd_usX2Y_substream      *subs[4];
  45        struct snd_usX2Y_substream      * volatile  prepare_subs;
  46        wait_queue_head_t       prepare_wait_queue;
  47        struct list_head        midi_list;
  48        struct list_head        pcm_list;
  49        int                     pcm_devs;
  50};
  51
  52
  53struct snd_usX2Y_substream {
  54        struct usX2Ydev *usX2Y;
  55        struct snd_pcm_substream *pcm_substream;
  56
  57        int                     endpoint;               
  58        unsigned int            maxpacksize;            /* max packet size in bytes */
  59
  60        atomic_t                state;
  61#define state_STOPPED   0
  62#define state_STARTING1 1
  63#define state_STARTING2 2
  64#define state_STARTING3 3
  65#define state_PREPARED  4
  66#define state_PRERUNNING  6
  67#define state_RUNNING   8
  68
  69        int                     hwptr;                  /* free frame position in the buffer (only for playback) */
  70        int                     hwptr_done;             /* processed frame position in the buffer */
  71        int                     transfer_done;          /* processed frames since last period update */
  72
  73        struct urb              *urb[NRURBS];   /* data urb table */
  74        struct urb              *completed_urb;
  75        char                    *tmpbuf;                        /* temporary buffer for playback */
  76};
  77
  78
  79#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
  80
  81int usX2Y_audio_create(struct snd_card *card);
  82
  83int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
  84int usX2Y_In04_init(struct usX2Ydev *usX2Y);
  85
  86#define NAME_ALLCAPS "US-X2Y"
  87
  88#endif
  89