summaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2008-04-23 17:47:28 +0200
committerTakashi Iwai <tiwai@suse.de>2008-04-24 12:38:22 +0200
commitb415ed45f4db9f8365daac84cf2518642a174dc0 (patch)
tree9cb81b685a0b73b5f8b41e41d389fc41a6466fd5 /sound
parentefd89d9dcf75ab0a31b200db0ae4ae19cad25e48 (diff)
[ALSA] Define MPU401 registers in sound/mpu401_uart.h
Define some MPU401 registers in sound/mpu401_uart.h so that other drivers can refer to them. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/drivers/mpu401/mpu401_uart.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c
index dd6ec4266732..18cca2457d44 100644
--- a/sound/drivers/mpu401/mpu401_uart.c
+++ b/sound/drivers/mpu401/mpu401_uart.c
@@ -49,12 +49,10 @@ static void snd_mpu401_uart_output_write(struct snd_mpu401 * mpu);
*/
-#define snd_mpu401_input_avail(mpu) (!(mpu->read(mpu, MPU401C(mpu)) & 0x80))
-#define snd_mpu401_output_ready(mpu) (!(mpu->read(mpu, MPU401C(mpu)) & 0x40))
-
-#define MPU401_RESET 0xff
-#define MPU401_ENTER_UART 0x3f
-#define MPU401_ACK 0xfe
+#define snd_mpu401_input_avail(mpu) \
+ (!(mpu->read(mpu, MPU401C(mpu)) & MPU401_RX_EMPTY))
+#define snd_mpu401_output_ready(mpu) \
+ (!(mpu->read(mpu, MPU401C(mpu)) & MPU401_TX_FULL))
/* Build in lowlevel io */
static void mpu401_write_port(struct snd_mpu401 *mpu, unsigned char data,