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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef USBUSX2Y_H3#define USBUSX2Y_H4#include "../usbaudio.h"5#include "../midi.h"6#include "usbus428ctldefs.h"7 8#define NRURBS 29 10 11#define URBS_ASYNC_SEQ 1012#define URB_DATA_LEN_ASYNC_SEQ 3213struct snd_usx2y_async_seq {14 struct urb *urb[URBS_ASYNC_SEQ];15 char *buffer;16};17 18struct snd_usx2y_urb_seq {19 int submitted;20 int len;21 struct urb *urb[] __counted_by(len);22};23 24#include "usx2yhwdeppcm.h"25 26struct usx2ydev {27 struct usb_device *dev;28 int card_index;29 int stride;30 struct urb *in04_urb;31 void *in04_buf;32 char in04_last[24];33 unsigned int in04_int_calls;34 struct snd_usx2y_urb_seq *us04;35 wait_queue_head_t in04_wait_queue;36 struct snd_usx2y_async_seq 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 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 062#define STATE_STARTING1 163#define STATE_STARTING2 264#define STATE_STARTING3 365#define STATE_PREPARED 466#define STATE_PRERUNNING 667#define STATE_RUNNING 868 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_async_seq04_init(struct usx2ydev *usx2y);84int usx2y_in04_init(struct usx2ydev *usx2y);85 86#define NAME_ALLCAPS "US-X2Y"87 88#endif89