1 files changed, 84 insertions, 0 deletions

diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h
new file mode 100644
index 000000000000..f65f3a7194ca
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.h
@@ -0,0 +1,84 @@
+#ifndef USBUSX2Y_H
+#define USBUSX2Y_H
+#include "../usbaudio.h"
+#include "usbus428ctldefs.h" 
+
+#define NRURBS          2       
+
+
+#define URBS_AsyncSeq 10
+#define URB_DataLen_AsyncSeq 32
+typedef struct {
+        struct urb*     urb[URBS_AsyncSeq];
+        char*   buffer;
+} snd_usX2Y_AsyncSeq_t;
+
+typedef struct {
+        int     submitted;
+        int     len;
+        struct urb*     urb[0];
+} snd_usX2Y_urbSeq_t;
+
+typedef struct snd_usX2Y_substream snd_usX2Y_substream_t;
+#include "usx2yhwdeppcm.h"
+
+typedef struct {
+        snd_usb_audio_t         chip;
+        int                     stride;
+        struct urb              *In04urb;
+        void                    *In04Buf;
+        char                    In04Last[24];
+        unsigned                In04IntCalls;
+        snd_usX2Y_urbSeq_t      *US04;
+        wait_queue_head_t       In04WaitQueue;
+        snd_usX2Y_AsyncSeq_t    AS04;
+        unsigned int            rate,
+                                format;
+        int                     chip_status;
+        struct semaphore        prepare_mutex;
+        us428ctls_sharedmem_t   *us428ctls_sharedmem;
+        int                     wait_iso_frame;
+        wait_queue_head_t       us428ctls_wait_queue_head;
+        snd_usX2Y_hwdep_pcm_shm_t       *hwdep_pcm_shm;
+        snd_usX2Y_substream_t   *subs[4];
+        snd_usX2Y_substream_t   * volatile  prepare_subs;
+        wait_queue_head_t       prepare_wait_queue;
+} usX2Ydev_t;
+
+
+struct snd_usX2Y_substream {
+        usX2Ydev_t      *usX2Y;
+        snd_pcm_substream_t *pcm_substream;
+
+        int                     endpoint;               
+        unsigned int            maxpacksize;            /* max packet size in bytes */
+
+        atomic_t                state;
+#define state_STOPPED   0
+#define state_STARTING1 1
+#define state_STARTING2 2
+#define state_STARTING3 3
+#define state_PREPARED  4
+#define state_PRERUNNING  6
+#define state_RUNNING   8
+
+        int                     hwptr;                  /* free frame position in the buffer (only for playback) */
+        int                     hwptr_done;             /* processed frame position in the buffer */
+        int                     transfer_done;          /* processed frames since last period update */
+
+        struct urb              *urb[NRURBS];   /* data urb table */
+        struct urb              *completed_urb;
+        char                    *tmpbuf;                        /* temporary buffer for playback */
+};
+
+
+#define usX2Y(c) ((usX2Ydev_t*)(c)->private_data)
+
+int usX2Y_audio_create(snd_card_t* card);
+
+int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y);
+int usX2Y_In04_init(usX2Ydev_t* usX2Y);
+
+#define NAME_ALLCAPS "US-X2Y"
+
+#endif