xref: /openbmc/linux/sound/usb/usx2y/usx2yhwdeppcm.h (revision bae3ce49)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #define MAXPACK 50
3 #define MAXBUFFERMS 100
4 #define MAXSTRIDE 3
5 
6 #define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096)
7 struct snd_usx2y_hwdep_pcm_shm {
8 	char playback[SSS];
9 	char capture0x8[SSS];
10 	char capture0xA[SSS];
11 	volatile int playback_iso_head;
12 	int playback_iso_start;
13 	struct {
14 		int	frame,
15 			offset,
16 			length;
17 	} captured_iso[128];
18 	volatile int captured_iso_head;
19 	volatile unsigned captured_iso_frames;
20 	int capture_iso_start;
21 };
22 
23 int usx2y_hwdep_pcm_new(struct snd_card *card);
24