am 4635df34: Merge "add libadfhwc"
* commit '4635df3433780371ff59e9c9c4577a7ca8d53f7f':
add libadfhwc
diff --git a/adf/libadfhwc/Android.mk b/adf/libadfhwc/Android.mk
new file mode 100644
index 0000000..acea322
--- /dev/null
+++ b/adf/libadfhwc/Android.mk
@@ -0,0 +1,25 @@
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := adfhwc.cpp
+LOCAL_MODULE := libadfhwc
+LOCAL_MODULE_TAGS := optional
+LOCAL_STATIC_LIBRARIES := libadf liblog libutils
+LOCAL_CFLAGS += -DLOG_TAG=\"adfhwc\"
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES += $(LOCAL_EXPORT_C_INCLUDE_DIRS)
+include $(BUILD_STATIC_LIBRARY)
diff --git a/adf/libadfhwc/adfhwc.cpp b/adf/libadfhwc/adfhwc.cpp
new file mode 100644
index 0000000..dee3cae
--- /dev/null
+++ b/adf/libadfhwc/adfhwc.cpp
@@ -0,0 +1,293 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fcntl.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sys/resource.h>
+
+#include <adf/adf.h>
+#include <adfhwc/adfhwc.h>
+
+#include <cutils/log.h>
+#include <utils/Vector.h>
+
+struct adf_hwc_helper {
+ adf_hwc_event_callbacks const *event_cb;
+ void *event_cb_data;
+
+ pthread_t event_thread;
+
+ android::Vector<int> intf_fds;
+ android::Vector<drm_mode_modeinfo> display_configs;
+};
+
+template<typename T> inline T min(T a, T b) { return (a < b) ? a : b; }
+
+int adf_eventControl(struct adf_hwc_helper *dev, int disp, int event,
+ int enabled)
+{
+ if (enabled != !!enabled)
+ return -EINVAL;
+
+ if ((size_t)disp >= dev->intf_fds.size())
+ return -EINVAL;
+
+ switch (event) {
+ case HWC_EVENT_VSYNC:
+ return adf_set_event(dev->intf_fds[disp], ADF_EVENT_VSYNC, enabled);
+ }
+
+ return -EINVAL;
+}
+
+static inline int32_t dpi(uint16_t res, uint16_t size_mm)
+{
+ if (size_mm)
+ return 1000 * (res * 25.4f) / size_mm;
+ return 0;
+}
+
+int adf_blank(struct adf_hwc_helper *dev, int disp, int blank)
+{
+ if ((size_t)disp >= dev->intf_fds.size())
+ return -EINVAL;
+
+ uint8_t dpms_mode = blank ? DRM_MODE_DPMS_OFF : DRM_MODE_DPMS_ON;
+ return adf_interface_blank(dev->intf_fds[disp], dpms_mode);
+}
+
+int adf_query_display_types_supported(struct adf_hwc_helper *dev, int *value)
+{
+ *value = 0;
+ if (dev->intf_fds.size() > 0)
+ *value |= HWC_DISPLAY_PRIMARY_BIT;
+ if (dev->intf_fds.size() > 1)
+ *value |= HWC_DISPLAY_EXTERNAL_BIT;
+
+ return 0;
+}
+
+int adf_getDisplayConfigs(struct adf_hwc_helper *dev, int disp,
+ uint32_t *configs, size_t *numConfigs)
+{
+ if ((size_t)disp >= dev->intf_fds.size())
+ return -EINVAL;
+
+ adf_interface_data data;
+ int err = adf_get_interface_data(dev->intf_fds[disp], &data);
+ if (err < 0) {
+ ALOGE("failed to get ADF interface data: %s", strerror(err));
+ return err;
+ }
+
+ if (!data.hotplug_detect)
+ return -ENODEV;
+
+ android::Vector<drm_mode_modeinfo *> unique_configs;
+ unique_configs.push_back(&data.current_mode);
+ for (size_t i = 0; i < data.n_available_modes; i++)
+ if (memcmp(&data.available_modes[i], &data.current_mode,
+ sizeof(data.current_mode)))
+ unique_configs.push_back(&data.available_modes[i]);
+
+ for (size_t i = 0; i < min(*numConfigs, unique_configs.size()); i++) {
+ configs[i] = dev->display_configs.size();
+ dev->display_configs.push_back(*unique_configs[i]);
+ }
+ *numConfigs = unique_configs.size();
+
+ adf_free_interface_data(&data);
+ return 0;
+}
+
+static int32_t adf_display_attribute(const adf_interface_data &data,
+ const drm_mode_modeinfo &mode, const uint32_t attribute)
+{
+ switch (attribute) {
+ case HWC_DISPLAY_VSYNC_PERIOD:
+ if (mode.vrefresh)
+ return 1000000000 / mode.vrefresh;
+ return 0;
+
+ case HWC_DISPLAY_WIDTH:
+ return mode.hdisplay;
+
+ case HWC_DISPLAY_HEIGHT:
+ return mode.vdisplay;
+
+ case HWC_DISPLAY_DPI_X:
+ return dpi(mode.hdisplay, data.width_mm);
+
+ case HWC_DISPLAY_DPI_Y:
+ return dpi(mode.vdisplay, data.height_mm);
+
+ default:
+ ALOGE("unknown display attribute %u", attribute);
+ return -EINVAL;
+ }
+}
+
+int adf_getDisplayAttributes(struct adf_hwc_helper *dev, int disp,
+ uint32_t config, const uint32_t *attributes, int32_t *values)
+{
+ if ((size_t)disp >= dev->intf_fds.size())
+ return -EINVAL;
+
+ if (config >= dev->display_configs.size())
+ return -EINVAL;
+
+ adf_interface_data data;
+ int err = adf_get_interface_data(dev->intf_fds[disp], &data);
+ if (err < 0) {
+ ALOGE("failed to get ADF interface data: %s", strerror(err));
+ return err;
+ }
+
+ for (int i = 0; attributes[i] != HWC_DISPLAY_NO_ATTRIBUTE; i++)
+ values[i] = adf_display_attribute(data, dev->display_configs[config],
+ attributes[i]);
+
+ adf_free_interface_data(&data);
+ return 0;
+}
+
+static void handle_adf_event(struct adf_hwc_helper *dev, int disp)
+{
+ adf_event *event;
+ int err = adf_read_event(dev->intf_fds[disp], &event);
+ if (err < 0) {
+ ALOGE("error reading event from display %d: %s", disp, strerror(err));
+ return;
+ }
+
+ void *vsync_temp;
+ adf_vsync_event *vsync;
+ adf_hotplug_event *hotplug;
+
+ switch (event->type) {
+ case ADF_EVENT_VSYNC:
+ vsync_temp = event;
+ vsync = static_cast<adf_vsync_event *>(vsync_temp);
+ // casting directly to adf_vsync_event * makes g++ warn about
+ // potential alignment issues that don't apply here
+ dev->event_cb->vsync(dev->event_cb_data, disp, vsync->timestamp);
+ break;
+ case ADF_EVENT_HOTPLUG:
+ hotplug = reinterpret_cast<adf_hotplug_event *>(event);
+ dev->event_cb->hotplug(dev->event_cb_data, disp, hotplug->connected);
+ break;
+ default:
+ if (event->type < ADF_EVENT_DEVICE_CUSTOM)
+ ALOGW("unrecognized event type %u", event->type);
+ else if (!dev->event_cb || !dev->event_cb->custom_event)
+ ALOGW("unhandled event type %u", event->type);
+ else
+ dev->event_cb->custom_event(dev->event_cb_data, disp, event);
+ }
+ free(event);
+}
+
+static void *adf_event_thread(void *data)
+{
+ adf_hwc_helper *dev = static_cast<adf_hwc_helper *>(data);
+
+ setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
+
+ pollfd *fds = new pollfd[dev->intf_fds.size()];
+ for (size_t i = 0; i < dev->intf_fds.size(); i++) {
+ fds[i].fd = dev->intf_fds[i];
+ fds[i].events = POLLIN | POLLPRI;
+ }
+
+ while (true) {
+ int err = poll(fds, dev->intf_fds.size(), -1);
+
+ if (err > 0) {
+ for (size_t i = 0; i < dev->intf_fds.size(); i++)
+ if (fds[i].revents & (POLLIN | POLLPRI))
+ handle_adf_event(dev, i);
+ }
+ else if (err == -1) {
+ if (errno == EINTR)
+ break;
+ ALOGE("error in event thread: %s", strerror(errno));
+ }
+ }
+
+ delete [] fds;
+ return NULL;
+}
+
+int adf_hwc_open(int *intf_fds, size_t n_intfs,
+ const struct adf_hwc_event_callbacks *event_cb, void *event_cb_data,
+ struct adf_hwc_helper **dev)
+{
+ if (!n_intfs)
+ return -EINVAL;
+
+ adf_hwc_helper *dev_ret = new adf_hwc_helper;
+ dev_ret->event_cb = event_cb;
+ dev_ret->event_cb_data = event_cb_data;
+
+ int ret;
+
+ for (size_t i = 0; i < n_intfs; i++) {
+ int dup_intf_fd = dup(intf_fds[i]);
+ if (dup_intf_fd < 0) {
+ ALOGE("failed to dup interface fd: %s", strerror(errno));
+ ret = -errno;
+ goto err;
+ }
+
+ dev_ret->intf_fds.push_back(dup_intf_fd);
+
+ ret = adf_set_event(dup_intf_fd, ADF_EVENT_HOTPLUG, 1);
+ if (ret < 0 && ret != -EINVAL) {
+ ALOGE("failed to enable hotplug event on display %u: %s",
+ i, strerror(errno));
+ goto err;
+ }
+ }
+
+ ret = pthread_create(&dev_ret->event_thread, NULL, adf_event_thread,
+ dev_ret);
+ if (ret) {
+ ALOGE("failed to create event thread: %s", strerror(ret));
+ goto err;
+ }
+
+ *dev = dev_ret;
+ return 0;
+
+err:
+ for (size_t i = 0; i < dev_ret->intf_fds.size(); i++)
+ close(dev_ret->intf_fds[i]);
+
+ delete dev_ret;
+ return ret;
+}
+
+void adf_hwc_close(struct adf_hwc_helper *dev)
+{
+ pthread_kill(dev->event_thread, SIGTERM);
+ pthread_join(dev->event_thread, NULL);
+
+ for (size_t i = 0; i < dev->intf_fds.size(); i++)
+ close(dev->intf_fds[i]);
+
+ delete dev;
+}
diff --git a/adf/libadfhwc/include/adfhwc/adfhwc.h b/adf/libadfhwc/include/adfhwc/adfhwc.h
new file mode 100644
index 0000000..71e7624
--- /dev/null
+++ b/adf/libadfhwc/include/adfhwc/adfhwc.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBADFHWC_ADFHWC_H_
+#define _LIBADFHWC_ADFHWC_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <video/adf.h>
+
+#include <hardware/hwcomposer.h>
+
+struct adf_hwc_helper;
+
+struct adf_hwc_event_callbacks {
+ /**
+ * Called on vsync (required)
+ */
+ void (*vsync)(void *data, int disp, uint64_t timestamp);
+ /**
+ * Called on hotplug (required)
+ */
+ void (*hotplug)(void *data, int disp, bool connected);
+ /**
+ * Called on hardware-custom ADF events (optional)
+ */
+ void (*custom_event)(void *data, int disp, struct adf_event *event);
+};
+
+/**
+ * Converts HAL pixel formats to equivalent ADF/DRM format FourCCs.
+ */
+static inline uint32_t adf_fourcc_for_hal_pixel_format(int format)
+{
+ switch (format) {
+ case HAL_PIXEL_FORMAT_RGBA_8888:
+ return DRM_FORMAT_RGBA8888;
+ case HAL_PIXEL_FORMAT_RGBX_8888:
+ return DRM_FORMAT_RGBX8888;
+ case HAL_PIXEL_FORMAT_RGB_888:
+ return DRM_FORMAT_RGB888;
+ case HAL_PIXEL_FORMAT_RGB_565:
+ return DRM_FORMAT_RGB565;
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ return DRM_FORMAT_BGRA8888;
+ case HAL_PIXEL_FORMAT_YV12:
+ return DRM_FORMAT_YVU420;
+ case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+ return DRM_FORMAT_NV16;
+ case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+ return DRM_FORMAT_NV21;
+ case HAL_PIXEL_FORMAT_YCbCr_422_I:
+ return DRM_FORMAT_YUYV;
+ default:
+ return 0;
+ }
+}
+
+/**
+ * Converts HAL display types to equivalent ADF interface flags.
+ */
+static inline uint32_t adf_hwc_interface_flag_for_disp(int disp)
+{
+ switch (disp) {
+ case HWC_DISPLAY_PRIMARY:
+ return ADF_INTF_FLAG_PRIMARY;
+ case HWC_DISPLAY_EXTERNAL:
+ return ADF_INTF_FLAG_EXTERNAL;
+ default:
+ return 0;
+ }
+}
+
+__BEGIN_DECLS
+
+/**
+ * Create a HWC helper for the specified ADF interfaces.
+ *
+ * intf_fds must be indexed by HWC display type: e.g.,
+ * intf_fds[HWC_DISPLAY_PRIMARY] is the fd for the primary display
+ * interface. n_intfs must be >= 1.
+ *
+ * The caller retains ownership of the fds in intf_fds and must close()
+ * them when they are no longer needed.
+ *
+ * On error, returns -errno.
+ */
+int adf_hwc_open(int *intf_fds, size_t n_intfs,
+ const struct adf_hwc_event_callbacks *event_cb, void *event_cb_data,
+ struct adf_hwc_helper **dev);
+
+/**
+ * Destroys a HWC helper.
+ */
+void adf_hwc_close(struct adf_hwc_helper *dev);
+
+/**
+ * Generic implementations of common HWC ops.
+ *
+ * The HWC should not point its ops directly at these helpers. Instead, the HWC
+ * should provide stub ops which call these helpers after converting the
+ * hwc_composer_device_1* to a struct adf_hwc_helper*.
+ */
+int adf_eventControl(struct adf_hwc_helper *dev, int disp, int event,
+ int enabled);
+int adf_blank(struct adf_hwc_helper *dev, int disp, int blank);
+int adf_query_display_types_supported(struct adf_hwc_helper *dev, int *value);
+int adf_getDisplayConfigs(struct adf_hwc_helper *dev, int disp,
+ uint32_t *configs, size_t *numConfigs);
+int adf_getDisplayAttributes(struct adf_hwc_helper *dev, int disp,
+ uint32_t config, const uint32_t *attributes, int32_t *values);
+
+__END_DECLS
+
+#endif /* _LIBADFHWC_ADFHWC_H_ */