xref: /openbmc/linux/sound/usb/usx2y/usbusx2y.h (revision b6dcefde)
1 #ifndef USBUSX2Y_H
2 #define USBUSX2Y_H
3 #include "../usbaudio.h"
4 #include "usbus428ctldefs.h"
5 
6 #define NRURBS	        2
7 
8 
9 #define URBS_AsyncSeq 10
10 #define URB_DataLen_AsyncSeq 32
11 struct snd_usX2Y_AsyncSeq {
12 	struct urb	*urb[URBS_AsyncSeq];
13 	char		*buffer;
14 };
15 
16 struct snd_usX2Y_urbSeq {
17 	int	submitted;
18 	int	len;
19 	struct urb	*urb[0];
20 };
21 
22 #include "usx2yhwdeppcm.h"
23 
24 struct usX2Ydev {
25 	struct usb_device	*dev;
26 	int			card_index;
27 	int			stride;
28 	struct urb		*In04urb;
29 	void			*In04Buf;
30 	char			In04Last[24];
31 	unsigned		In04IntCalls;
32 	struct snd_usX2Y_urbSeq	*US04;
33 	wait_queue_head_t	In04WaitQueue;
34 	struct snd_usX2Y_AsyncSeq	AS04;
35 	unsigned int		rate,
36 				format;
37 	int			chip_status;
38 	struct mutex		prepare_mutex;
39 	struct us428ctls_sharedmem	*us428ctls_sharedmem;
40 	int			wait_iso_frame;
41 	wait_queue_head_t	us428ctls_wait_queue_head;
42 	struct snd_usX2Y_hwdep_pcm_shm	*hwdep_pcm_shm;
43 	struct snd_usX2Y_substream	*subs[4];
44 	struct snd_usX2Y_substream	* volatile  prepare_subs;
45 	wait_queue_head_t	prepare_wait_queue;
46 	struct list_head	midi_list;
47 	struct list_head	pcm_list;
48 	int			pcm_devs;
49 };
50 
51 
52 struct snd_usX2Y_substream {
53 	struct usX2Ydev	*usX2Y;
54 	struct snd_pcm_substream *pcm_substream;
55 
56 	int			endpoint;
57 	unsigned int		maxpacksize;		/* max packet size in bytes */
58 
59 	atomic_t		state;
60 #define state_STOPPED	0
61 #define state_STARTING1 1
62 #define state_STARTING2 2
63 #define state_STARTING3 3
64 #define state_PREPARED	4
65 #define state_PRERUNNING  6
66 #define state_RUNNING	8
67 
68 	int			hwptr;			/* free frame position in the buffer (only for playback) */
69 	int			hwptr_done;		/* processed frame position in the buffer */
70 	int			transfer_done;		/* processed frames since last period update */
71 
72 	struct urb		*urb[NRURBS];	/* data urb table */
73 	struct urb		*completed_urb;
74 	char			*tmpbuf;			/* temporary buffer for playback */
75 };
76 
77 
78 #define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
79 
80 int usX2Y_audio_create(struct snd_card *card);
81 
82 int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
83 int usX2Y_In04_init(struct usX2Ydev *usX2Y);
84 
85 #define NAME_ALLCAPS "US-X2Y"
86 
87 #endif
88