[coreboot] [PATCH 1/4] Lenovo H8: add h8_ultrabay_device_present()

[Sven Schnelle]

Signed-off-by: Sven Schnelle <svens at stackframe.org>
---
 src/ec/lenovo/h8/h8.c |    6 ++++++
 src/ec/lenovo/h8/h8.h |    5 +++++
 2 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/src/ec/lenovo/h8/h8.c b/src/ec/lenovo/h8/h8.c
index 6a59525..fafaef2 100644
--- a/src/ec/lenovo/h8/h8.c
+++ b/src/ec/lenovo/h8/h8.c
@@ -87,6 +87,12 @@ void h8_disable_event(int event)
 
 }
 
+int h8_ultrabay_device_present(void)
+{
+	return ec_read(H8_STATUS1) & 0x5 ? 0 : 1;
+}
+
+
 static void h8_enable(device_t dev)
 {
 	struct ec_lenovo_h8_config *conf = dev->chip_info;
diff --git a/src/ec/lenovo/h8/h8.h b/src/ec/lenovo/h8/h8.h
index d263313..b5d8f01 100644
--- a/src/ec/lenovo/h8/h8.h
+++ b/src/ec/lenovo/h8/h8.h
@@ -25,6 +25,7 @@ void h8_wlan_enable(int on);
 void h8_set_audio_mute(int on);
 void h8_enable_event(int event);
 void h8_disable_event(int event);
+int h8_ultrabay_device_present(void);
 
 /* EC registers */
 #define H8_CONFIG0 0x00
@@ -102,6 +103,10 @@ void h8_disable_event(int event);
 
 #define H8_EVENT_FN_PRESS	0x39
 
+#define H8_STATUS0		0x46
+#define H8_STATUS1		0x47
+#define H8_STATUS2		0x48
+
 #define H8_EVENT_BAT0		0x4a
 #define H8_EVENT_BAT0_STATE	0x4b
 
-- 
1.7.4.4