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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef USBUSX2Y_H
   3#define USBUSX2Y_H
   4#include "../usbaudio.h"
   5#include "../midi.h"
   6#include "usbus428ctldefs.h" 
   7
   8#define NRURBS          2       
   9
  10
  11#define URBS_AsyncSeq 10
  12#define URB_DataLen_AsyncSeq 32
  13struct snd_usX2Y_AsyncSeq {
  14        struct urb      *urb[URBS_AsyncSeq];
  15        char            *buffer;
  16};
  17
  18struct snd_usX2Y_urbSeq {
  19        int     submitted;
  20        int     len;
  21        struct urb      *urb[0];
  22};
  23
  24#include "usx2yhwdeppcm.h"
  25
  26struct usX2Ydev {
  27        struct usb_device       *dev;
  28        int                     card_index;
  29        int                     stride;
  30        struct urb              *In04urb;
  31        void                    *In04Buf;
  32        char                    In04Last[24];
  33        unsigned                In04IntCalls;
  34        struct snd_usX2Y_urbSeq *US04;
  35        wait_queue_head_t       In04WaitQueue;
  36        struct snd_usX2Y_AsyncSeq       AS04;
  37        unsigned int            rate,
  38                                format;
  39        int                     chip_status;
  40        struct mutex            pcm_mutex;
  41        struct us428ctls_sharedmem      *us428ctls_sharedmem;
  42        int                     wait_iso_frame;
  43        wait_queue_head_t       us428ctls_wait_queue_head;
  44        struct snd_usX2Y_hwdep_pcm_shm  *hwdep_pcm_shm;
  45        struct snd_usX2Y_substream      *subs[4];
  46        struct snd_usX2Y_substream      * volatile  prepare_subs;
  47        wait_queue_head_t       prepare_wait_queue;
  48        struct list_head        midi_list;
  49        struct list_head        pcm_list;
  50        int                     pcm_devs;
  51};
  52
  53
  54struct snd_usX2Y_substream {
  55        struct usX2Ydev *usX2Y;
  56        struct snd_pcm_substream *pcm_substream;
  57
  58        int                     endpoint;               
  59        unsigned int            maxpacksize;            /* max packet size in bytes */
  60
  61        atomic_t                state;
  62#define state_STOPPED   0
  63#define state_STARTING1 1
  64#define state_STARTING2 2
  65#define state_STARTING3 3
  66#define state_PREPARED  4
  67#define state_PRERUNNING  6
  68#define state_RUNNING   8
  69
  70        int                     hwptr;                  /* free frame position in the buffer (only for playback) */
  71        int                     hwptr_done;             /* processed frame position in the buffer */
  72        int                     transfer_done;          /* processed frames since last period update */
  73
  74        struct urb              *urb[NRURBS];   /* data urb table */
  75        struct urb              *completed_urb;
  76        char                    *tmpbuf;                        /* temporary buffer for playback */
  77};
  78
  79
  80#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
  81
  82int usX2Y_audio_create(struct snd_card *card);
  83
  84int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
  85int usX2Y_In04_init(struct usX2Ydev *usX2Y);
  86
  87#define NAME_ALLCAPS "US-X2Y"
  88
  89#endif
  90