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 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
  52 struct 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
  80 int usX2Y_audio_create(struct snd_card *card);
  81
  82 int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
  83 int usX2Y_In04_init(struct usX2Ydev *usX2Y);
  84
  85 #define NAME_ALLCAPS "US-X2Y"
  86
  87 #endif