Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...

[pandora-kernel.git] / include / sound / mpu401.h

diff --git a/include/sound/mpu401.h b/include/sound/mpu401.h
index d45218b..1f1d53f 100644 (file)
--- a/include/sound/mpu401.h
+++ b/include/sound/mpu401.h
@@ -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
+
+
 /*
 
  */