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authorcodeworkx <codeworkx@cyanogenmod.org>2012-12-01 19:37:39 +0100
committercodeworkx <codeworkx@cyanogenmod.org>2012-12-01 19:37:39 +0100
commitabfed77d4612fa4812327221373213d04ce65974 (patch)
tree69f2326cf881e9e61cb273c45ce08b71cc077c5a
parent34f9d5d69265777b8bb27f98cfa9855494e1266a (diff)
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exynos4: hwcomposer: add uevent vsync handling
-rw-r--r--exynos4/hal/libhwcomposer/Android.mk6
-rw-r--r--exynos4/hal/libhwcomposer/SecHWC.cpp62
2 files changed, 65 insertions, 3 deletions
diff --git a/exynos4/hal/libhwcomposer/Android.mk b/exynos4/hal/libhwcomposer/Android.mk
index ae93dc5..29acb51 100644
--- a/exynos4/hal/libhwcomposer/Android.mk
+++ b/exynos4/hal/libhwcomposer/Android.mk
@@ -21,7 +21,7 @@ include $(CLEAR_VARS)
LOCAL_PRELINK_MODULE := false
LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
LOCAL_SHARED_LIBRARIES := liblog libcutils libEGL \
- libGLESv1_CM
+ libGLESv1_CM libhardware libhardware_legacy
LOCAL_C_INCLUDES := \
$(TARGET_HAL_PATH)/include
@@ -38,6 +38,10 @@ ifeq ($(TARGET_SOC),exynos4x12)
LOCAL_CFLAGS += -DSAMSUNG_EXYNOS4x12
endif
+ifeq ($(BOARD_USE_SYSFS_VSYNC_NOTIFICATION),true)
+LOCAL_CFLAGS += -DSYSFS_VSYNC_NOTIFICATION
+endif
+
ifeq ($(BOARD_USES_HDMI),true)
LOCAL_C_INCLUDES += \
$(TARGET_HAL_PATH)/libhwcomposer \
diff --git a/exynos4/hal/libhwcomposer/SecHWC.cpp b/exynos4/hal/libhwcomposer/SecHWC.cpp
index 704e5b8..9f32226 100644
--- a/exynos4/hal/libhwcomposer/SecHWC.cpp
+++ b/exynos4/hal/libhwcomposer/SecHWC.cpp
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2012 The CyanogenMod Project <http://www.cyanogenmod.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -27,8 +28,10 @@
#include <cutils/atomic.h>
#include <EGL/egl.h>
-#include <sys/prctl.h>
#include <fcntl.h>
+#include <hardware_legacy/uevent.h>
+#include <sys/prctl.h>
+#include <sys/resource.h>
#include "SecHWCUtils.h"
@@ -933,7 +936,7 @@ static int hwc_eventControl(struct hwc_composer_device_1* dev, int dpy,
return -EINVAL;
}
-
+#ifdef SYSFS_VSYNC_NOTIFICATION
static void *hwc_vsync_sysfs_loop(void *data)
{
static char buf[4096];
@@ -963,6 +966,50 @@ static void *hwc_vsync_sysfs_loop(void *data)
return NULL;
}
+#endif
+
+void handle_vsync_uevent(hwc_context_t *ctx, const char *buff, int len)
+{
+ uint64_t timestamp = 0;
+ const char *s = buff;
+
+ if(!ctx->procs || !ctx->procs->vsync)
+ return;
+
+ s += strlen(s) + 1;
+
+ while(*s) {
+ if (!strncmp(s, "VSYNC=", strlen("VSYNC=")))
+ timestamp = strtoull(s + strlen("VSYNC="), NULL, 0);
+
+ s += strlen(s) + 1;
+ if (s - buff >= len)
+ break;
+ }
+
+ ctx->procs->vsync(ctx->procs, 0, timestamp);
+}
+
+static void *hwc_vsync_thread(void *data)
+{
+ hwc_context_t *ctx = (hwc_context_t *)(data);
+ char uevent_desc[4096];
+
+ memset(uevent_desc, 0, sizeof(uevent_desc));
+ setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
+ uevent_init();
+
+ while(true) {
+
+ int len = uevent_next_event(uevent_desc, sizeof(uevent_desc) - 2);
+
+ bool vsync = !strcmp(uevent_desc, "change@/devices/platform/samsung-pd.2/s3cfb.0");
+ if(vsync)
+ handle_vsync_uevent(ctx, uevent_desc, len);
+ }
+
+ return NULL;
+}
static int hwc_device_close(struct hw_device_t *dev)
{
@@ -1079,12 +1126,23 @@ static int hwc_device_open(const struct hw_module_t* module, const char* name,
goto err;
}
+#ifndef SYSFS_VSYNC_NOTIFICATION
+ err = pthread_create(&dev->vsync_thread, NULL, hwc_vsync_thread, dev);
+ if (err) {
+ ALOGE("%s::pthread_create() failed : %s", __func__, strerror(err));
+ status = -err;
+ goto err;
+ }
+#endif
+
+#ifdef SYSFS_VSYNC_NOTIFICATION
err = pthread_create(&dev->vsync_thread, NULL, hwc_vsync_sysfs_loop, dev);
if (err) {
SEC_HWC_Log(HWC_LOG_ERROR, "%s::pthread_create() failed : %s", __func__, strerror(err));
status = -err;
goto err;
}
+#endif
SEC_HWC_Log(HWC_LOG_DEBUG, "%s:: hwc_device_open: SUCCESS", __func__);