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85 lines
1.9 KiB
85 lines
1.9 KiB
20 years ago
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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 "usbus428ctldefs.h"
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#define NRURBS 2
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#define URBS_AsyncSeq 10
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#define URB_DataLen_AsyncSeq 32
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typedef struct {
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struct urb* urb[URBS_AsyncSeq];
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char* buffer;
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} snd_usX2Y_AsyncSeq_t;
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typedef struct {
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int submitted;
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int len;
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struct urb* urb[0];
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} snd_usX2Y_urbSeq_t;
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typedef struct snd_usX2Y_substream snd_usX2Y_substream_t;
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#include "usx2yhwdeppcm.h"
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typedef struct {
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snd_usb_audio_t chip;
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int stride;
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struct urb *In04urb;
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void *In04Buf;
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char In04Last[24];
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unsigned In04IntCalls;
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snd_usX2Y_urbSeq_t *US04;
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wait_queue_head_t In04WaitQueue;
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snd_usX2Y_AsyncSeq_t 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 semaphore prepare_mutex;
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us428ctls_sharedmem_t *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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snd_usX2Y_hwdep_pcm_shm_t *hwdep_pcm_shm;
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snd_usX2Y_substream_t *subs[4];
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snd_usX2Y_substream_t * volatile prepare_subs;
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wait_queue_head_t prepare_wait_queue;
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} usX2Ydev_t;
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struct snd_usX2Y_substream {
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usX2Ydev_t *usX2Y;
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snd_pcm_substream_t *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) ((usX2Ydev_t*)(c)->private_data)
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int usX2Y_audio_create(snd_card_t* card);
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int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y);
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int usX2Y_In04_init(usX2Ydev_t* usX2Y);
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#define NAME_ALLCAPS "US-X2Y"
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#endif
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