Imported Upstream version 4.2-build2006upstream/4.2-build2006upstream

1 files changed, 49 insertions, 0 deletions

diff --git a/misc/samples/ddksample/ddksample.h b/misc/samples/ddksample/ddksample.h
new file mode 100644
index 0000000..a0257f5
--- /dev/null
+++ b/misc/samples/ddksample/ddksample.h
@@ -0,0 +1,49 @@
+#ifndef _DDKSAMPLE_H
+#define _DDKSAMPLE_H
+
+// Audio engine (port) control structure.
+
+#define MAX_SUBDEVICE	4
+
+typedef struct
+{
+  int dev;
+  int open_mode;		/* OPEN_READ | OPEN_WRITE */
+
+  int speed;
+  int channels;
+  int format, bits;
+
+  int prepare_flags;
+  int audio_active;
+
+  int timeout_value;
+  timeout_id_t timeout_id;
+
+  int left_volume, right_volume;
+  int mute;
+#define DDKSAMPLE_MAX_VOL	100
+
+  int left_peak, right_peak;
+} ddksample_portc;
+
+// Device control structure
+typedef struct
+{
+  oss_device_t *osdev;
+  kmutex_t mutex;
+
+  int mixer_dev;
+  int mainvol_left, mainvol_right;
+
+  int num_portc;
+  ddksample_portc portc[MAX_SUBDEVICE];
+  int audio_open_count;		/* Number of channels currently opened */
+
+} ddksample_devc;
+
+extern int ddksample_mixer_init (ddksample_devc * devc);
+extern int ddksample_audio_init (ddksample_devc * devc);
+extern void ddksample_do_math (ddksample_portc * portc, void *buf, int len);
+
+#endif