89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef USBUSX2Y_H
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#define USBUSX2Y_H
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#include "../usbaudio.h"
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#include "../midi.h"
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#include "usbus428ctldefs.h"
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#define NRURBS 2
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#define URBS_ASYNC_SEQ 10
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#define URB_DATA_LEN_ASYNC_SEQ 32
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struct snd_usx2y_async_seq {
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struct urb *urb[URBS_ASYNC_SEQ];
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char *buffer;
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};
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struct snd_usx2y_urb_seq {
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int submitted;
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int len;
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struct urb *urb[];
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};
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#include "usx2yhwdeppcm.h"
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struct usx2ydev {
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struct usb_device *dev;
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int card_index;
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int stride;
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struct urb *in04_urb;
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void *in04_buf;
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char in04_last[24];
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unsigned int in04_int_calls;
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struct snd_usx2y_urb_seq *us04;
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wait_queue_head_t in04_wait_queue;
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struct snd_usx2y_async_seq as04;
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unsigned int rate,
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format;
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int chip_status;
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struct mutex pcm_mutex;
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struct us428ctls_sharedmem *us428ctls_sharedmem;
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int wait_iso_frame;
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wait_queue_head_t us428ctls_wait_queue_head;
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struct snd_usx2y_hwdep_pcm_shm *hwdep_pcm_shm;
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struct snd_usx2y_substream *subs[4];
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struct snd_usx2y_substream * volatile prepare_subs;
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wait_queue_head_t prepare_wait_queue;
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struct list_head midi_list;
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int pcm_devs;
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};
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struct snd_usx2y_substream {
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struct usx2ydev *usx2y;
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struct snd_pcm_substream *pcm_substream;
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int endpoint;
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unsigned int maxpacksize; /* max packet size in bytes */
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atomic_t state;
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#define STATE_STOPPED 0
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#define STATE_STARTING1 1
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#define STATE_STARTING2 2
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#define STATE_STARTING3 3
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#define STATE_PREPARED 4
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#define STATE_PRERUNNING 6
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#define STATE_RUNNING 8
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int hwptr; /* free frame position in the buffer (only for playback) */
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int hwptr_done; /* processed frame position in the buffer */
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int transfer_done; /* processed frames since last period update */
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struct urb *urb[NRURBS]; /* data urb table */
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struct urb *completed_urb;
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char *tmpbuf; /* temporary buffer for playback */
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};
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#define usx2y(c) ((struct usx2ydev *)(c)->private_data)
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int usx2y_audio_create(struct snd_card *card);
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int usx2y_async_seq04_init(struct usx2ydev *usx2y);
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int usx2y_in04_init(struct usx2ydev *usx2y);
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#define NAME_ALLCAPS "US-X2Y"
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#endif
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