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Diffstat (limited to 'sound/usb/usx2y/usx2yhwdeppcm.h')
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.h b/sound/usb/usx2y/usx2yhwdeppcm.h
new file mode 100644
index 000000000..731b1c5a3
--- /dev/null
+++ b/sound/usb/usx2y/usx2yhwdeppcm.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define MAXPACK 50
+#define MAXBUFFERMS 100
+#define MAXSTRIDE 3
+
+#define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096)
+struct snd_usx2y_hwdep_pcm_shm {
+ char playback[SSS];
+ char capture0x8[SSS];
+ char capture0xA[SSS];
+ volatile int playback_iso_head;
+ int playback_iso_start;
+ struct {
+ int frame,
+ offset,
+ length;
+ } captured_iso[128];
+ volatile int captured_iso_head;
+ volatile unsigned captured_iso_frames;
+ int capture_iso_start;
+};
+
+int usx2y_hwdep_pcm_new(struct snd_card *card);