aboutsummaryrefslogtreecommitdiff
path: root/sound/oss/dm.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/oss/dm.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/oss/dm.h')
-rw-r--r--sound/oss/dm.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/sound/oss/dm.h b/sound/oss/dm.h
new file mode 100644
index 00000000000..14a90593c44
--- /dev/null
+++ b/sound/oss/dm.h
@@ -0,0 +1,79 @@
+#ifndef _DRIVERS_SOUND_DM_H
+#define _DRIVERS_SOUND_DM_H
+
+/*
+ * Definitions of the 'direct midi sound' interface used
+ * by the newer commercial OSS package. We should export
+ * this to userland somewhere in glibc later.
+ */
+
+/*
+ * Data structure composing an FM "note" or sound event.
+ */
+
+struct dm_fm_voice
+{
+ u8 op;
+ u8 voice;
+ u8 am;
+ u8 vibrato;
+ u8 do_sustain;
+ u8 kbd_scale;
+ u8 harmonic;
+ u8 scale_level;
+ u8 volume;
+ u8 attack;
+ u8 decay;
+ u8 sustain;
+ u8 release;
+ u8 feedback;
+ u8 connection;
+ u8 left;
+ u8 right;
+ u8 waveform;
+};
+
+/*
+ * This describes an FM note by its voice, octave, frequency number (10bit)
+ * and key on/off.
+ */
+
+struct dm_fm_note
+{
+ u8 voice;
+ u8 octave;
+ u32 fnum;
+ u8 key_on;
+};
+
+/*
+ * FM parameters that apply globally to all voices, and thus are not "notes"
+ */
+
+struct dm_fm_params
+{
+ u8 am_depth;
+ u8 vib_depth;
+ u8 kbd_split;
+ u8 rhythm;
+
+ /* This block is the percussion instrument data */
+ u8 bass;
+ u8 snare;
+ u8 tomtom;
+ u8 cymbal;
+ u8 hihat;
+};
+
+/*
+ * FM mode ioctl settings
+ */
+
+#define FM_IOCTL_RESET 0x20
+#define FM_IOCTL_PLAY_NOTE 0x21
+#define FM_IOCTL_SET_VOICE 0x22
+#define FM_IOCTL_SET_PARAMS 0x23
+#define FM_IOCTL_SET_MODE 0x24
+#define FM_IOCTL_SET_OPL 0x25
+
+#endif