mega-commit.

this introduces a new buffering mechanism which results in dramatic
simplification of the channel manager.

as several structures have changed, we take the opportunity to move their
definitions into the source files where they are used, make them private and
de-typedef them.

the sound drivers are updated to use snd_setup_intr instead of
bus_setup_intr, and to comply with the de-typedefed structures.

the ac97, mixer and channel layers have been updated with finegrained
locking, as have some drivers- not all though.  the rest will follow soon.

1 files changed, 17 insertions, 0 deletions

diff --git a/sys/dev/sound/isa/mss.h b/sys/dev/sound/isa/mss.h
index b3a2f1c..ffdb809 100644
--- a/sys/dev/sound/isa/mss.h
+++ b/sys/dev/sound/isa/mss.h
@@ -23,6 +23,23 @@ ahead.
  *
  */
 
+struct mixer_def {
+    	u_int regno:7;
+    	u_int polarity:1;	/* 1 means reversed */
+    	u_int bitoffs:4;
+    	u_int nbits:4;
+};
+typedef struct mixer_def mixer_ent;
+typedef struct mixer_def mixer_tab[32][2];
+
+#define MIX_ENT(name, reg_l, pol_l, pos_l, len_l, reg_r, pol_r, pos_r, len_r) \
+    	{{reg_l, pol_l, pos_l, len_l}, {reg_r, pol_r, pos_r, len_r}}
+
+#define PMIX_ENT(name, reg_l, pos_l, len_l, reg_r, pos_r, len_r) \
+    	{{reg_l, 0, pos_l, len_l}, {reg_r, 0, pos_r, len_r}}
+
+#define MIX_NONE(name) MIX_ENT(name, 0,0,0,0, 0,0,0,0)
+
 /*
  * The four visible registers of the MSS :
  *