cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

usbusx2y.h (2097B)

      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_ASYNC_SEQ 10
     12#define URB_DATA_LEN_ASYNC_SEQ 32
     13struct 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[];
     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	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
     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#endif