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