X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=include%2Fsound%2Fmpu401.h;h=1f1d53f8830b55036dbf241bb38e227d8e121b5f;hb=e589501cb928b482c3c399444f788e1af35deee2;hp=8c88267e9beaaa7aa5f95e843703c4a3ad7fcc67;hpb=7ff3e52cf2947ebd38c84159af68e5a29d228f6c;p=~andy%2Flinux

diff --git a/include/sound/mpu401.h b/include/sound/mpu401.h
index 8c88267e9be..1f1d53f8830 100644
--- a/include/sound/mpu401.h
+++ b/include/sound/mpu401.h
@@ -3,7 +3,7 @@
 
 /*
  *  Header file for MPU-401 and compatible cards
- *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  *
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -50,6 +50,7 @@
 #define MPU401_INFO_INTEGRATED	(1 << 2)	/* integrated h/w port */
 #define MPU401_INFO_MMIO	(1 << 3)	/* MMIO access */
 #define MPU401_INFO_TX_IRQ	(1 << 4)	/* independent TX irq */
+#define MPU401_INFO_NO_ACK	(1 << 6)	/* No ACK cmd needed */
 
 #define MPU401_MODE_BIT_INPUT		0
 #define MPU401_MODE_BIT_OUTPUT		1
@@ -102,6 +103,21 @@ struct snd_mpu401 {
 #define MPU401C(mpu) (mpu)->cport
 #define MPU401D(mpu) (mpu)->port
 
+/*
+ * control register bits
+ */
+/* read MPU401C() */
+#define MPU401_RX_EMPTY		0x80
+#define MPU401_TX_FULL		0x40
+
+/* write MPU401C() */
+#define MPU401_RESET		0xff
+#define MPU401_ENTER_UART	0x3f
+
+/* read MPU401D() */
+#define MPU401_ACK		0xfe
+
+
 /*
 
  */