From 5e381e93bf8cdcfec41582cde2283a0cb4f58fd1 Mon Sep 17 00:00:00 2001
From: Daniel Hillenbrand <codeworkx@cyanogenmod.org>
Date: Sat, 26 Sep 2015 14:02:46 +0100
Subject: minui: support to pan display (FBIOPAN_DISPLAY)

Needed for newer hisilicon boards

Change-Id: I9a5d640b1168de518885b89f63499c6f31958b75
---
 minui/Android.mk         | 4 ++++
 minui/graphics_fbdev.cpp | 6 ++++++
 2 files changed, 10 insertions(+)

(limited to 'minui')

diff --git a/minui/Android.mk b/minui/Android.mk
index 3057f45..dd64cc6 100644
--- a/minui/Android.mk
+++ b/minui/Android.mk
@@ -37,6 +37,10 @@ else
   LOCAL_CFLAGS += -DOVERSCAN_PERCENT=0
 endif
 
+ifneq ($(BOARD_RECOVERY_NEEDS_FBIOPAN_DISPLAY),)
+  LOCAL_CFLAGS += -DBOARD_RECOVERY_NEEDS_FBIOPAN_DISPLAY
+endif
+
 include $(BUILD_STATIC_LIBRARY)
 
 # Used by OEMs for factory test images.
diff --git a/minui/graphics_fbdev.cpp b/minui/graphics_fbdev.cpp
index 997e9ca..c94b581 100644
--- a/minui/graphics_fbdev.cpp
+++ b/minui/graphics_fbdev.cpp
@@ -73,9 +73,15 @@ static void set_displayed_framebuffer(unsigned n)
     vi.yres_virtual = gr_framebuffer[0].height * 2;
     vi.yoffset = n * gr_framebuffer[0].height;
     vi.bits_per_pixel = gr_framebuffer[0].pixel_bytes * 8;
+
     if (ioctl(fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
         perror("active fb swap failed");
     }
+#ifdef BOARD_RECOVERY_NEEDS_FBIOPAN_DISPLAY
+    if (ioctl(fb_fd, FBIOPAN_DISPLAY, &vi) < 0) {
+        perror("pan failed");
+    }
+#endif
     displayed_buffer = n;
 }
 
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