kernel/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
  12 struct snd_usX2Y_AsyncSeq {
  13         struct urb      *urb[URBS_AsyncSeq];
  14         char            *buffer;
  15 };
  16
  17 struct snd_usX2Y_urbSeq {
  18         int     submitted;
  19         int     len;
  20         struct urb      *urb[0];
  21 };
  22
  23 #include "usx2yhwdeppcm.h"
  24
  25 struct 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            pcm_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
  53 struct 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
  81 int usX2Y_audio_create(struct snd_card *card);
  82
  83 int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
  84 int usX2Y_In04_init(struct usX2Ydev *usX2Y);
  85
  86 #define NAME_ALLCAPS "US-X2Y"
  87
  88 #endif