Merge changes Id46d9ccd,I0b4555b1 into ics-mr1

* changes:
  Camera: move AF polling code from driver into HAL
  new prebuilt kernel

2 files changed, 39 insertions, 3 deletions

diff --git a/libcamera/SecCamera.cpp b/libcamera/SecCamera.cpp
index 48cf02e..444001c 100755
--- a/libcamera/SecCamera.cpp
+++ b/libcamera/SecCamera.cpp
@@ -1557,12 +1557,41 @@ int SecCamera::setAutofocus(void)
 
 int SecCamera::getAutoFocusResult(void)
 {
-    int af_result;
+    int af_result, count, ret;
 
-    af_result = fimc_v4l2_g_ctrl(m_cam_fd, V4L2_CID_CAMERA_AUTO_FOCUS_RESULT);
+    for (count = 0; count < FIRST_AF_SEARCH_COUNT; count++) {
+        ret = fimc_v4l2_g_ctrl(m_cam_fd, V4L2_CID_CAMERA_AUTO_FOCUS_RESULT_FIRST);
+        if (ret != AF_PROGRESS)
+            break;
+        usleep(AF_DELAY);
+    }
+    if ((count >= FIRST_AF_SEARCH_COUNT) || (ret != AF_SUCCESS)) {
+        LOGV("%s : 1st AF timed out, failed, or was canceled", __func__);
+        af_result = 0;
+        goto finish_auto_focus;
+    }
 
-    LOGV("%s : returning %d", __func__, af_result);
+    for (count = 0; count < SECOND_AF_SEARCH_COUNT; count++) {
+        ret = fimc_v4l2_g_ctrl(m_cam_fd, V4L2_CID_CAMERA_AUTO_FOCUS_RESULT_SECOND);
+        /* low byte is garbage.  done when high byte is 0x0 */
+        if (!(ret & 0xff00))
+            break;
+        usleep(AF_DELAY);
+    }
+    if (count >= SECOND_AF_SEARCH_COUNT) {
+        LOGV("%s : 2nd AF timed out, failed, or was canceled", __func__);
+        af_result = 0;
+        goto finish_auto_focus;
+    }
+
+    af_result = 1;
+    LOGV("%s : AF was successful, returning %d", __func__, af_result);
 
+finish_auto_focus:
+    if (fimc_v4l2_s_ctrl(m_cam_fd, V4L2_CID_CAMERA_FINISH_AUTO_FOCUS, 0) < 0) {
+        LOGE("ERR(%s):Fail on V4L2_CID_CAMERA_SET_PRE_FLASH", __func__);
+        return -1;
+    }
     return af_result;
 }
 
diff --git a/libcamera/SecCamera.h b/libcamera/SecCamera.h
index 551eb03..5c62782 100644..100755
--- a/libcamera/SecCamera.h
+++ b/libcamera/SecCamera.h
@@ -146,6 +146,13 @@ namespace android {
 #define BPP             2
 #define MIN(x, y)       (((x) < (y)) ? (x) : (y))
 #define MAX_BUFFERS     9 // 11
+
+#define FIRST_AF_SEARCH_COUNT 80
+#define SECOND_AF_SEARCH_COUNT 80
+#define AF_PROGRESS 0x01
+#define AF_SUCCESS 0x02
+#define AF_DELAY 50000
+
 /*
  * V 4 L 2   F I M C   E X T E N S I O N S
  *